Commit | Line | Data |
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1 | /* vms.c |
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2 | * |
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3 | * VMS-specific routines for perl5 |
4 | * |
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5 | * Last revised: 18-Jan-1996 by Charles Bailey bailey@genetics.upenn.edu |
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6 | * Version: 5.2.0 |
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7 | */ |
8 | |
9 | #include <acedef.h> |
10 | #include <acldef.h> |
11 | #include <armdef.h> |
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12 | #include <atrdef.h> |
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13 | #include <chpdef.h> |
14 | #include <descrip.h> |
15 | #include <dvidef.h> |
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16 | #include <fibdef.h> |
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17 | #include <float.h> |
18 | #include <fscndef.h> |
19 | #include <iodef.h> |
20 | #include <jpidef.h> |
21 | #include <libdef.h> |
22 | #include <lib$routines.h> |
23 | #include <lnmdef.h> |
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24 | #include <prvdef.h> |
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25 | #include <psldef.h> |
26 | #include <rms.h> |
27 | #include <shrdef.h> |
28 | #include <ssdef.h> |
29 | #include <starlet.h> |
30 | #include <stsdef.h> |
31 | #include <syidef.h> |
748a9306 |
32 | #include <uaidef.h> |
33 | #include <uicdef.h> |
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34 | |
35 | #include "EXTERN.h" |
36 | #include "perl.h" |
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37 | #include "XSUB.h" |
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38 | |
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39 | /* gcc's header files don't #define direct access macros |
40 | * corresponding to VAXC's variant structs */ |
41 | #ifdef __GNUC__ |
42 | # define uic$v_format uic$r_uic_form.uiv$v_format |
43 | # define uic$v_group uic$r_uic_form.uiv$v_group |
44 | # define uic$v_member uic$r_uic_form.uiv$v_member |
45 | # define prv$v_bypass prv$r_prvdef_bits0.prv$v_bypass |
46 | # define prv$v_grpprv prv$r_prvdef_bits0.prv$v_grpprv |
47 | # define prv$v_readall prv$r_prvdef_bits0.prv$v_readall |
48 | # define prv$v_sysprv prv$r_prvdef_bits0.prv$v_sysprv |
49 | #endif |
50 | |
51 | |
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52 | struct itmlst_3 { |
53 | unsigned short int buflen; |
54 | unsigned short int itmcode; |
55 | void *bufadr; |
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56 | unsigned short int *retlen; |
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57 | }; |
58 | |
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59 | int |
60 | my_trnlnm(char *lnm, char *eqv, unsigned long int idx) |
748a9306 |
61 | { |
62 | static char __my_trnlnm_eqv[LNM$C_NAMLENGTH+1]; |
63 | unsigned short int eqvlen; |
64 | unsigned long int retsts, attr = LNM$M_CASE_BLIND; |
65 | $DESCRIPTOR(tabdsc,"LNM$FILE_DEV"); |
66 | struct dsc$descriptor_s lnmdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,0}; |
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67 | struct itmlst_3 lnmlst[3] = {{sizeof idx, LNM$_INDEX, &idx, 0}, |
68 | {LNM$C_NAMLENGTH, LNM$_STRING, 0, &eqvlen}, |
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69 | {0, 0, 0, 0}}; |
70 | |
71 | if (!eqv) eqv = __my_trnlnm_eqv; |
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72 | lnmlst[1].bufadr = (void *)eqv; |
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73 | lnmdsc.dsc$a_pointer = lnm; |
74 | lnmdsc.dsc$w_length = strlen(lnm); |
75 | retsts = sys$trnlnm(&attr,&tabdsc,&lnmdsc,0,lnmlst); |
c07a80fd |
76 | if (retsts == SS$_NOLOGNAM || retsts == SS$_IVLOGNAM) { |
77 | set_vaxc_errno(retsts); set_errno(EINVAL); return 0; |
78 | } |
748a9306 |
79 | else if (retsts & 1) { |
80 | eqv[eqvlen] = '\0'; |
c07a80fd |
81 | return 1; |
748a9306 |
82 | } |
83 | _ckvmssts(retsts); /* Must be an error */ |
c07a80fd |
84 | return 0; /* Not reached, assuming _ckvmssts() bails out */ |
85 | |
86 | } /* end of my_trnlnm */ |
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87 | |
88 | /* my_getenv |
89 | * Translate a logical name. Substitute for CRTL getenv() to avoid |
90 | * memory leak, and to keep my_getenv() and my_setenv() in the same |
91 | * domain (mostly - my_getenv() need not return a translation from |
92 | * the process logical name table) |
93 | * |
94 | * Note: Uses static buffer -- not thread-safe! |
95 | */ |
96 | /*{{{ char *my_getenv(char *lnm)*/ |
97 | char * |
98 | my_getenv(char *lnm) |
99 | { |
100 | static char __my_getenv_eqv[LNM$C_NAMLENGTH+1]; |
101 | char uplnm[LNM$C_NAMLENGTH], *cp1, *cp2; |
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102 | unsigned long int idx = 0; |
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103 | |
104 | for (cp1 = lnm, cp2= uplnm; *cp1; cp1++, cp2++) *cp2 = _toupper(*cp1); |
105 | *cp2 = '\0'; |
748a9306 |
106 | if (cp1 - lnm == 7 && !strncmp(uplnm,"DEFAULT",7)) { |
107 | getcwd(__my_getenv_eqv,sizeof __my_getenv_eqv); |
108 | return __my_getenv_eqv; |
109 | } |
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110 | else { |
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111 | if ((cp2 = strchr(uplnm,';')) != NULL) { |
112 | *cp2 = '\0'; |
113 | idx = strtoul(cp2+1,NULL,0); |
114 | } |
115 | if (my_trnlnm(uplnm,__my_getenv_eqv,idx)) { |
116 | return __my_getenv_eqv; |
117 | } |
118 | else { |
119 | unsigned long int retsts; |
120 | struct dsc$descriptor_s symdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,0}, |
121 | valdsc = {sizeof __my_getenv_eqv,DSC$K_DTYPE_T, |
122 | DSC$K_CLASS_S, __my_getenv_eqv}; |
123 | symdsc.dsc$w_length = cp1 - lnm; |
124 | symdsc.dsc$a_pointer = uplnm; |
125 | retsts = lib$get_symbol(&symdsc,&valdsc,&(valdsc.dsc$w_length),0); |
126 | if (retsts == LIB$_INVSYMNAM) return Nullch; |
127 | if (retsts != LIB$_NOSUCHSYM) { |
128 | /* We want to return only logical names or CRTL Unix emulations */ |
129 | if (retsts & 1) return Nullch; |
130 | _ckvmssts(retsts); |
131 | } |
132 | /* Try for CRTL emulation of a Unix/POSIX name */ |
133 | else return getenv(lnm); |
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134 | } |
135 | } |
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136 | return Nullch; |
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137 | |
138 | } /* end of my_getenv() */ |
139 | /*}}}*/ |
140 | |
141 | /*{{{ void my_setenv(char *lnm, char *eqv)*/ |
142 | void |
143 | my_setenv(char *lnm,char *eqv) |
144 | /* Define a supervisor-mode logical name in the process table. |
145 | * In the future we'll add tables, attribs, and acmodes, |
146 | * probably through a different call. |
147 | */ |
148 | { |
149 | char uplnm[LNM$C_NAMLENGTH], *cp1, *cp2; |
150 | unsigned long int retsts, usermode = PSL$C_USER; |
151 | $DESCRIPTOR(tabdsc,"LNM$PROCESS"); |
152 | struct dsc$descriptor_s lnmdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,uplnm}, |
153 | eqvdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,0}; |
154 | |
155 | for(cp1 = lnm, cp2 = uplnm; *cp1; cp1++, cp2++) *cp2 = _toupper(*cp1); |
156 | lnmdsc.dsc$w_length = cp1 - lnm; |
157 | |
158 | if (!eqv || !*eqv) { /* we're deleting a logical name */ |
159 | retsts = sys$dellnm(&tabdsc,&lnmdsc,&usermode); /* try user mode first */ |
748a9306 |
160 | if (retsts == SS$_IVLOGNAM) return; |
161 | if (retsts != SS$_NOLOGNAM) _ckvmssts(retsts); |
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162 | if (!(retsts & 1)) { |
163 | retsts = lib$delete_logical(&lnmdsc,&tabdsc); /* then supervisor mode */ |
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164 | if (retsts != SS$_NOLOGNAM) _ckvmssts(retsts); |
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165 | } |
166 | } |
167 | else { |
168 | eqvdsc.dsc$w_length = strlen(eqv); |
169 | eqvdsc.dsc$a_pointer = eqv; |
170 | |
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171 | _ckvmssts(lib$set_logical(&lnmdsc,&eqvdsc,&tabdsc,0,0)); |
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172 | } |
173 | |
174 | } /* end of my_setenv() */ |
175 | /*}}}*/ |
176 | |
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177 | |
178 | /*{{{ char *my_crypt(const char *textpasswd, const char *usrname)*/ |
179 | /* my_crypt - VMS password hashing |
180 | * my_crypt() provides an interface compatible with the Unix crypt() |
181 | * C library function, and uses sys$hash_password() to perform VMS |
182 | * password hashing. The quadword hashed password value is returned |
183 | * as a NUL-terminated 8 character string. my_crypt() does not change |
184 | * the case of its string arguments; in order to match the behavior |
185 | * of LOGINOUT et al., alphabetic characters in both arguments must |
186 | * be upcased by the caller. |
187 | */ |
188 | char * |
189 | my_crypt(const char *textpasswd, const char *usrname) |
190 | { |
191 | # ifndef UAI$C_PREFERRED_ALGORITHM |
192 | # define UAI$C_PREFERRED_ALGORITHM 127 |
193 | # endif |
194 | unsigned char alg = UAI$C_PREFERRED_ALGORITHM; |
195 | unsigned short int salt = 0; |
196 | unsigned long int sts; |
197 | struct const_dsc { |
198 | unsigned short int dsc$w_length; |
199 | unsigned char dsc$b_type; |
200 | unsigned char dsc$b_class; |
201 | const char * dsc$a_pointer; |
202 | } usrdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}, |
203 | txtdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
204 | struct itmlst_3 uailst[3] = { |
205 | { sizeof alg, UAI$_ENCRYPT, &alg, 0}, |
206 | { sizeof salt, UAI$_SALT, &salt, 0}, |
207 | { 0, 0, NULL, NULL}}; |
208 | static char hash[9]; |
209 | |
210 | usrdsc.dsc$w_length = strlen(usrname); |
211 | usrdsc.dsc$a_pointer = usrname; |
212 | if (!((sts = sys$getuai(0, 0, &usrdsc, uailst, 0, 0, 0)) & 1)) { |
213 | switch (sts) { |
214 | case SS$_NOGRPPRV: |
215 | case SS$_NOSYSPRV: |
216 | set_errno(EACCES); |
217 | break; |
218 | case RMS$_RNF: |
219 | set_errno(ESRCH); /* There isn't a Unix no-such-user error */ |
220 | break; |
221 | default: |
222 | set_errno(EVMSERR); |
223 | } |
224 | set_vaxc_errno(sts); |
225 | if (sts != RMS$_RNF) return NULL; |
226 | } |
227 | |
228 | txtdsc.dsc$w_length = strlen(textpasswd); |
229 | txtdsc.dsc$a_pointer = textpasswd; |
230 | if (!((sts = sys$hash_password(&txtdsc, alg, salt, &usrdsc, &hash)) & 1)) { |
231 | set_errno(EVMSERR); set_vaxc_errno(sts); return NULL; |
232 | } |
233 | |
234 | return (char *) hash; |
235 | |
236 | } /* end of my_crypt() */ |
237 | /*}}}*/ |
238 | |
239 | |
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240 | static char *do_fileify_dirspec(char *, char *, int); |
241 | static char *do_tovmsspec(char *, char *, int); |
242 | |
243 | /*{{{int do_rmdir(char *name)*/ |
244 | int |
245 | do_rmdir(char *name) |
246 | { |
247 | char dirfile[NAM$C_MAXRSS+1]; |
248 | int retval; |
748a9306 |
249 | struct stat st; |
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250 | |
251 | if (do_fileify_dirspec(name,dirfile,0) == NULL) return -1; |
252 | if (flex_stat(dirfile,&st) || !S_ISDIR(st.st_mode)) retval = -1; |
253 | else retval = kill_file(dirfile); |
254 | return retval; |
255 | |
256 | } /* end of do_rmdir */ |
257 | /*}}}*/ |
258 | |
259 | /* kill_file |
260 | * Delete any file to which user has control access, regardless of whether |
261 | * delete access is explicitly allowed. |
262 | * Limitations: User must have write access to parent directory. |
263 | * Does not block signals or ASTs; if interrupted in midstream |
264 | * may leave file with an altered ACL. |
265 | * HANDLE WITH CARE! |
266 | */ |
267 | /*{{{int kill_file(char *name)*/ |
268 | int |
269 | kill_file(char *name) |
270 | { |
271 | char vmsname[NAM$C_MAXRSS+1]; |
272 | unsigned long int jpicode = JPI$_UIC, type = ACL$C_FILE; |
748a9306 |
273 | unsigned long int cxt = 0, aclsts, fndsts, rmsts = -1; |
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274 | struct dsc$descriptor_s fildsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
275 | struct myacedef { |
748a9306 |
276 | unsigned char myace$b_length; |
277 | unsigned char myace$b_type; |
278 | unsigned short int myace$w_flags; |
279 | unsigned long int myace$l_access; |
280 | unsigned long int myace$l_ident; |
a0d0e21e |
281 | } newace = { sizeof(struct myacedef), ACE$C_KEYID, 0, |
282 | ACE$M_READ | ACE$M_WRITE | ACE$M_DELETE | ACE$M_CONTROL, 0}, |
283 | oldace = { sizeof(struct myacedef), ACE$C_KEYID, 0, 0, 0}; |
284 | struct itmlst_3 |
748a9306 |
285 | findlst[3] = {{sizeof oldace, ACL$C_FNDACLENT, &oldace, 0}, |
286 | {sizeof oldace, ACL$C_READACE, &oldace, 0},{0,0,0,0}}, |
287 | addlst[2] = {{sizeof newace, ACL$C_ADDACLENT, &newace, 0},{0,0,0,0}}, |
288 | dellst[2] = {{sizeof newace, ACL$C_DELACLENT, &newace, 0},{0,0,0,0}}, |
289 | lcklst[2] = {{sizeof newace, ACL$C_WLOCK_ACL, &newace, 0},{0,0,0,0}}, |
290 | ulklst[2] = {{sizeof newace, ACL$C_UNLOCK_ACL, &newace, 0},{0,0,0,0}}; |
a0d0e21e |
291 | |
292 | if (!remove(name)) return 0; /* Can we just get rid of it? */ |
293 | |
294 | /* No, so we get our own UIC to use as a rights identifier, |
295 | * and the insert an ACE at the head of the ACL which allows us |
296 | * to delete the file. |
297 | */ |
748a9306 |
298 | _ckvmssts(lib$getjpi(&jpicode,0,0,&(oldace.myace$l_ident),0,0)); |
a0d0e21e |
299 | if (do_tovmsspec(name,vmsname,0) == NULL) return -1; |
300 | fildsc.dsc$w_length = strlen(vmsname); |
301 | fildsc.dsc$a_pointer = vmsname; |
302 | cxt = 0; |
748a9306 |
303 | newace.myace$l_ident = oldace.myace$l_ident; |
a0d0e21e |
304 | if (!((aclsts = sys$change_acl(0,&type,&fildsc,lcklst,0,0,0)) & 1)) { |
748a9306 |
305 | set_errno(EVMSERR); |
306 | set_vaxc_errno(aclsts); |
a0d0e21e |
307 | return -1; |
308 | } |
309 | /* Grab any existing ACEs with this identifier in case we fail */ |
310 | aclsts = fndsts = sys$change_acl(0,&type,&fildsc,findlst,0,0,&cxt); |
e518068a |
311 | if ( fndsts & 1 || fndsts == SS$_ACLEMPTY || fndsts == SS$_NOENTRY |
312 | || fndsts == SS$_NOMOREACE ) { |
a0d0e21e |
313 | /* Add the new ACE . . . */ |
314 | if (!((aclsts = sys$change_acl(0,&type,&fildsc,addlst,0,0,0)) & 1)) |
315 | goto yourroom; |
748a9306 |
316 | if ((rmsts = remove(name))) { |
a0d0e21e |
317 | /* We blew it - dir with files in it, no write priv for |
318 | * parent directory, etc. Put things back the way they were. */ |
319 | if (!((aclsts = sys$change_acl(0,&type,&fildsc,dellst,0,0,0)) & 1)) |
320 | goto yourroom; |
321 | if (fndsts & 1) { |
322 | addlst[0].bufadr = &oldace; |
323 | if (!((aclsts = sys$change_acl(0,&type,&fildsc,addlst,0,0,&cxt)) & 1)) |
324 | goto yourroom; |
325 | } |
326 | } |
327 | } |
328 | |
329 | yourroom: |
330 | if (rmsts) { |
331 | fndsts = sys$change_acl(0,&type,&fildsc,ulklst,0,0,0); |
332 | if (aclsts & 1) aclsts = fndsts; |
333 | } |
334 | if (!(aclsts & 1)) { |
748a9306 |
335 | set_errno(EVMSERR); |
336 | set_vaxc_errno(aclsts); |
a0d0e21e |
337 | return -1; |
338 | } |
339 | |
340 | return rmsts; |
341 | |
342 | } /* end of kill_file() */ |
343 | /*}}}*/ |
344 | |
748a9306 |
345 | /* my_utime - update modification time of a file |
346 | * calling sequence is identical to POSIX utime(), but under |
347 | * VMS only the modification time is changed; ODS-2 does not |
348 | * maintain access times. Restrictions differ from the POSIX |
349 | * definition in that the time can be changed as long as the |
350 | * caller has permission to execute the necessary IO$_MODIFY $QIO; |
351 | * no separate checks are made to insure that the caller is the |
352 | * owner of the file or has special privs enabled. |
353 | * Code here is based on Joe Meadows' FILE utility. |
354 | */ |
355 | |
356 | /* Adjustment from Unix epoch (01-JAN-1970 00:00:00.00) |
357 | * to VMS epoch (01-JAN-1858 00:00:00.00) |
358 | * in 100 ns intervals. |
359 | */ |
360 | static const long int utime_baseadjust[2] = { 0x4beb4000, 0x7c9567 }; |
361 | |
362 | /*{{{int my_utime(char *path, struct utimbuf *utimes)*/ |
363 | int my_utime(char *file, struct utimbuf *utimes) |
364 | { |
365 | register int i; |
366 | long int bintime[2], len = 2, lowbit, unixtime, |
367 | secscale = 10000000; /* seconds --> 100 ns intervals */ |
368 | unsigned long int chan, iosb[2], retsts; |
369 | char vmsspec[NAM$C_MAXRSS+1], rsa[NAM$C_MAXRSS], esa[NAM$C_MAXRSS]; |
370 | struct FAB myfab = cc$rms_fab; |
371 | struct NAM mynam = cc$rms_nam; |
4633a7c4 |
372 | #if defined (__DECC) && defined (__VAX) |
373 | /* VAX DEC C atrdef.h has unsigned type for pointer member atr$l_addr, |
374 | * at least through VMS V6.1, which causes a type-conversion warning. |
375 | */ |
376 | # pragma message save |
377 | # pragma message disable cvtdiftypes |
378 | #endif |
748a9306 |
379 | struct atrdef myatr[2] = {{sizeof bintime, ATR$C_REVDATE, bintime}, {0,0,0}}; |
380 | struct fibdef myfib; |
4633a7c4 |
381 | #if defined (__DECC) && defined (__VAX) |
382 | /* This should be right after the declaration of myatr, but due |
383 | * to a bug in VAX DEC C, this takes effect a statement early. |
384 | */ |
385 | # pragma message restore |
386 | #endif |
748a9306 |
387 | struct dsc$descriptor fibdsc = {sizeof(myfib), DSC$K_DTYPE_Z, DSC$K_CLASS_S,(char *) &myfib}, |
388 | devdsc = {0,DSC$K_DTYPE_T, DSC$K_CLASS_S,0}, |
389 | fnmdsc = {0,DSC$K_DTYPE_T, DSC$K_CLASS_S,0}; |
390 | |
391 | if (file == NULL || *file == '\0') { |
392 | set_errno(ENOENT); |
393 | set_vaxc_errno(LIB$_INVARG); |
394 | return -1; |
395 | } |
e518068a |
396 | if (do_tovmsspec(file,vmsspec,0) == NULL) return -1; |
748a9306 |
397 | |
398 | if (utimes != NULL) { |
399 | /* Convert Unix time (seconds since 01-JAN-1970 00:00:00.00) |
400 | * to VMS quadword time (100 nsec intervals since 01-JAN-1858 00:00:00.00). |
401 | * Since time_t is unsigned long int, and lib$emul takes a signed long int |
402 | * as input, we force the sign bit to be clear by shifting unixtime right |
403 | * one bit, then multiplying by an extra factor of 2 in lib$emul(). |
404 | */ |
405 | lowbit = (utimes->modtime & 1) ? secscale : 0; |
406 | unixtime = (long int) utimes->modtime; |
407 | unixtime >> 1; secscale << 1; |
408 | retsts = lib$emul(&secscale, &unixtime, &lowbit, bintime); |
409 | if (!(retsts & 1)) { |
410 | set_errno(EVMSERR); |
411 | set_vaxc_errno(retsts); |
412 | return -1; |
413 | } |
414 | retsts = lib$addx(bintime,utime_baseadjust,bintime,&len); |
415 | if (!(retsts & 1)) { |
416 | set_errno(EVMSERR); |
417 | set_vaxc_errno(retsts); |
418 | return -1; |
419 | } |
420 | } |
421 | else { |
422 | /* Just get the current time in VMS format directly */ |
423 | retsts = sys$gettim(bintime); |
424 | if (!(retsts & 1)) { |
425 | set_errno(EVMSERR); |
426 | set_vaxc_errno(retsts); |
427 | return -1; |
428 | } |
429 | } |
430 | |
431 | myfab.fab$l_fna = vmsspec; |
432 | myfab.fab$b_fns = (unsigned char) strlen(vmsspec); |
433 | myfab.fab$l_nam = &mynam; |
434 | mynam.nam$l_esa = esa; |
435 | mynam.nam$b_ess = (unsigned char) sizeof esa; |
436 | mynam.nam$l_rsa = rsa; |
437 | mynam.nam$b_rss = (unsigned char) sizeof rsa; |
438 | |
439 | /* Look for the file to be affected, letting RMS parse the file |
440 | * specification for us as well. I have set errno using only |
441 | * values documented in the utime() man page for VMS POSIX. |
442 | */ |
443 | retsts = sys$parse(&myfab,0,0); |
444 | if (!(retsts & 1)) { |
445 | set_vaxc_errno(retsts); |
446 | if (retsts == RMS$_PRV) set_errno(EACCES); |
447 | else if (retsts == RMS$_DIR) set_errno(ENOTDIR); |
448 | else set_errno(EVMSERR); |
449 | return -1; |
450 | } |
451 | retsts = sys$search(&myfab,0,0); |
452 | if (!(retsts & 1)) { |
453 | set_vaxc_errno(retsts); |
454 | if (retsts == RMS$_PRV) set_errno(EACCES); |
455 | else if (retsts == RMS$_FNF) set_errno(ENOENT); |
456 | else set_errno(EVMSERR); |
457 | return -1; |
458 | } |
459 | |
460 | devdsc.dsc$w_length = mynam.nam$b_dev; |
461 | devdsc.dsc$a_pointer = (char *) mynam.nam$l_dev; |
462 | |
463 | retsts = sys$assign(&devdsc,&chan,0,0); |
464 | if (!(retsts & 1)) { |
465 | set_vaxc_errno(retsts); |
466 | if (retsts == SS$_IVDEVNAM) set_errno(ENOTDIR); |
467 | else if (retsts == SS$_NOPRIV) set_errno(EACCES); |
468 | else if (retsts == SS$_NOSUCHDEV) set_errno(ENOTDIR); |
469 | else set_errno(EVMSERR); |
470 | return -1; |
471 | } |
472 | |
473 | fnmdsc.dsc$a_pointer = mynam.nam$l_name; |
474 | fnmdsc.dsc$w_length = mynam.nam$b_name + mynam.nam$b_type + mynam.nam$b_ver; |
475 | |
476 | memset((void *) &myfib, 0, sizeof myfib); |
477 | #ifdef __DECC |
478 | for (i=0;i<3;i++) myfib.fib$w_fid[i] = mynam.nam$w_fid[i]; |
479 | for (i=0;i<3;i++) myfib.fib$w_did[i] = mynam.nam$w_did[i]; |
480 | /* This prevents the revision time of the file being reset to the current |
481 | * time as a reqult of our IO$_MODIFY $QIO. */ |
482 | myfib.fib$l_acctl = FIB$M_NORECORD; |
483 | #else |
484 | for (i=0;i<3;i++) myfib.fib$r_fid_overlay.fib$w_fid[i] = mynam.nam$w_fid[i]; |
485 | for (i=0;i<3;i++) myfib.fib$r_did_overlay.fib$w_did[i] = mynam.nam$w_did[i]; |
486 | myfib.fib$r_acctl_overlay.fib$l_acctl = FIB$M_NORECORD; |
487 | #endif |
488 | retsts = sys$qiow(0,chan,IO$_MODIFY,iosb,0,0,&fibdsc,&fnmdsc,0,0,myatr,0); |
489 | if (retsts & 1) retsts = iosb[0]; |
490 | if (!(retsts & 1)) { |
491 | set_vaxc_errno(retsts); |
492 | if (retsts == SS$_NOPRIV) set_errno(EACCES); |
493 | else set_errno(EVMSERR); |
494 | return -1; |
495 | } |
496 | |
497 | return 0; |
498 | } /* end of my_utime() */ |
499 | /*}}}*/ |
500 | |
a0d0e21e |
501 | static void |
502 | create_mbx(unsigned short int *chan, struct dsc$descriptor_s *namdsc) |
503 | { |
504 | static unsigned long int mbxbufsiz; |
505 | long int syiitm = SYI$_MAXBUF, dviitm = DVI$_DEVNAM; |
506 | |
507 | if (!mbxbufsiz) { |
508 | /* |
509 | * Get the SYSGEN parameter MAXBUF, and the smaller of it and the |
510 | * preprocessor consant BUFSIZ from stdio.h as the size of the |
511 | * 'pipe' mailbox. |
512 | */ |
748a9306 |
513 | _ckvmssts(lib$getsyi(&syiitm, &mbxbufsiz, 0, 0, 0, 0)); |
a0d0e21e |
514 | if (mbxbufsiz > BUFSIZ) mbxbufsiz = BUFSIZ; |
515 | } |
748a9306 |
516 | _ckvmssts(sys$crembx(0,chan,mbxbufsiz,mbxbufsiz,0,0,0)); |
a0d0e21e |
517 | |
748a9306 |
518 | _ckvmssts(lib$getdvi(&dviitm, chan, NULL, NULL, namdsc, &namdsc->dsc$w_length)); |
a0d0e21e |
519 | namdsc->dsc$a_pointer[namdsc->dsc$w_length] = '\0'; |
520 | |
521 | } /* end of create_mbx() */ |
522 | |
523 | /*{{{ my_popen and my_pclose*/ |
524 | struct pipe_details |
525 | { |
526 | struct pipe_details *next; |
748a9306 |
527 | FILE *fp; /* stdio file pointer to pipe mailbox */ |
528 | int pid; /* PID of subprocess */ |
529 | int mode; /* == 'r' if pipe open for reading */ |
530 | int done; /* subprocess has completed */ |
531 | unsigned long int completion; /* termination status of subprocess */ |
a0d0e21e |
532 | }; |
533 | |
748a9306 |
534 | struct exit_control_block |
535 | { |
536 | struct exit_control_block *flink; |
537 | unsigned long int (*exit_routine)(); |
538 | unsigned long int arg_count; |
539 | unsigned long int *status_address; |
540 | unsigned long int exit_status; |
541 | }; |
542 | |
a0d0e21e |
543 | static struct pipe_details *open_pipes = NULL; |
544 | static $DESCRIPTOR(nl_desc, "NL:"); |
545 | static int waitpid_asleep = 0; |
546 | |
748a9306 |
547 | static unsigned long int |
548 | pipe_exit_routine() |
549 | { |
550 | unsigned long int retsts = SS$_NORMAL, abort = SS$_TIMEOUT, sts; |
551 | |
552 | while (open_pipes != NULL) { |
553 | if (!open_pipes->done) { /* Tap them gently on the shoulder . . .*/ |
554 | _ckvmssts(sys$forcex(&open_pipes->pid,0,&abort)); |
555 | sleep(1); |
556 | } |
557 | if (!open_pipes->done) /* We tried to be nice . . . */ |
558 | _ckvmssts(sys$delprc(&open_pipes->pid,0)); |
559 | if (!((sts = my_pclose(open_pipes->fp))&1)) retsts = sts; |
560 | } |
561 | return retsts; |
562 | } |
563 | |
564 | static struct exit_control_block pipe_exitblock = |
565 | {(struct exit_control_block *) 0, |
566 | pipe_exit_routine, 0, &pipe_exitblock.exit_status, 0}; |
567 | |
568 | |
a0d0e21e |
569 | static void |
748a9306 |
570 | popen_completion_ast(struct pipe_details *thispipe) |
a0d0e21e |
571 | { |
748a9306 |
572 | thispipe->done = TRUE; |
a0d0e21e |
573 | if (waitpid_asleep) { |
574 | waitpid_asleep = 0; |
575 | sys$wake(0,0); |
576 | } |
577 | } |
578 | |
579 | /*{{{ FILE *my_popen(char *cmd, char *mode)*/ |
580 | FILE * |
581 | my_popen(char *cmd, char *mode) |
582 | { |
748a9306 |
583 | static int handler_set_up = FALSE; |
a0d0e21e |
584 | char mbxname[64]; |
585 | unsigned short int chan; |
586 | unsigned long int flags=1; /* nowait - gnu c doesn't allow &1 */ |
587 | struct pipe_details *info; |
588 | struct dsc$descriptor_s namdsc = {sizeof mbxname, DSC$K_DTYPE_T, |
589 | DSC$K_CLASS_S, mbxname}, |
590 | cmddsc = {0, DSC$K_DTYPE_T, |
591 | DSC$K_CLASS_S, 0}; |
592 | |
593 | |
594 | New(7001,info,1,struct pipe_details); |
595 | |
a0d0e21e |
596 | /* create mailbox */ |
597 | create_mbx(&chan,&namdsc); |
598 | |
599 | /* open a FILE* onto it */ |
600 | info->fp=fopen(mbxname, mode); |
601 | |
602 | /* give up other channel onto it */ |
748a9306 |
603 | _ckvmssts(sys$dassgn(chan)); |
a0d0e21e |
604 | |
605 | if (!info->fp) |
606 | return Nullfp; |
607 | |
608 | cmddsc.dsc$w_length=strlen(cmd); |
609 | cmddsc.dsc$a_pointer=cmd; |
610 | |
748a9306 |
611 | info->mode = *mode; |
612 | info->done = FALSE; |
613 | info->completion=0; |
614 | |
615 | if (*mode == 'r') { |
616 | _ckvmssts(lib$spawn(&cmddsc, &nl_desc, &namdsc, &flags, |
a0d0e21e |
617 | 0 /* name */, &info->pid, &info->completion, |
748a9306 |
618 | 0, popen_completion_ast,info,0,0,0)); |
a0d0e21e |
619 | } |
620 | else { |
748a9306 |
621 | _ckvmssts(lib$spawn(&cmddsc, &namdsc, 0 /* sys$output */, &flags, |
622 | 0 /* name */, &info->pid, &info->completion, |
623 | 0, popen_completion_ast,info,0,0,0)); |
a0d0e21e |
624 | } |
625 | |
748a9306 |
626 | if (!handler_set_up) { |
627 | _ckvmssts(sys$dclexh(&pipe_exitblock)); |
628 | handler_set_up = TRUE; |
629 | } |
a0d0e21e |
630 | info->next=open_pipes; /* prepend to list */ |
631 | open_pipes=info; |
632 | |
e518068a |
633 | forkprocess = info->pid; |
a0d0e21e |
634 | return info->fp; |
635 | } |
636 | /*}}}*/ |
637 | |
638 | /*{{{ I32 my_pclose(FILE *fp)*/ |
639 | I32 my_pclose(FILE *fp) |
640 | { |
641 | struct pipe_details *info, *last = NULL; |
748a9306 |
642 | unsigned long int retsts; |
a0d0e21e |
643 | |
644 | for (info = open_pipes; info != NULL; last = info, info = info->next) |
645 | if (info->fp == fp) break; |
646 | |
647 | if (info == NULL) |
648 | /* get here => no such pipe open */ |
748a9306 |
649 | croak("No such pipe open"); |
650 | |
c07a80fd |
651 | fclose(info->fp); |
652 | |
748a9306 |
653 | if (info->done) retsts = info->completion; |
654 | else waitpid(info->pid,(int *) &retsts,0); |
a0d0e21e |
655 | |
a0d0e21e |
656 | /* remove from list of open pipes */ |
657 | if (last) last->next = info->next; |
658 | else open_pipes = info->next; |
a0d0e21e |
659 | Safefree(info); |
660 | |
661 | return retsts; |
748a9306 |
662 | |
a0d0e21e |
663 | } /* end of my_pclose() */ |
664 | |
a0d0e21e |
665 | /* sort-of waitpid; use only with popen() */ |
666 | /*{{{unsigned long int waitpid(unsigned long int pid, int *statusp, int flags)*/ |
667 | unsigned long int |
668 | waitpid(unsigned long int pid, int *statusp, int flags) |
669 | { |
670 | struct pipe_details *info; |
a0d0e21e |
671 | |
672 | for (info = open_pipes; info != NULL; info = info->next) |
673 | if (info->pid == pid) break; |
674 | |
675 | if (info != NULL) { /* we know about this child */ |
748a9306 |
676 | while (!info->done) { |
a0d0e21e |
677 | waitpid_asleep = 1; |
678 | sys$hiber(); |
679 | } |
680 | |
681 | *statusp = info->completion; |
682 | return pid; |
683 | } |
684 | else { /* we haven't heard of this child */ |
685 | $DESCRIPTOR(intdsc,"0 00:00:01"); |
686 | unsigned long int ownercode = JPI$_OWNER, ownerpid, mypid; |
748a9306 |
687 | unsigned long int interval[2],sts; |
a0d0e21e |
688 | |
748a9306 |
689 | if (dowarn) { |
690 | _ckvmssts(lib$getjpi(&ownercode,&pid,0,&ownerpid,0,0)); |
691 | _ckvmssts(lib$getjpi(&ownercode,0,0,&mypid,0,0)); |
692 | if (ownerpid != mypid) |
693 | warn("pid %d not a child",pid); |
694 | } |
a0d0e21e |
695 | |
748a9306 |
696 | _ckvmssts(sys$bintim(&intdsc,interval)); |
a0d0e21e |
697 | while ((sts=lib$getjpi(&ownercode,&pid,0,&ownerpid,0,0)) & 1) { |
748a9306 |
698 | _ckvmssts(sys$schdwk(0,0,interval,0)); |
699 | _ckvmssts(sys$hiber()); |
a0d0e21e |
700 | } |
748a9306 |
701 | _ckvmssts(sts); |
a0d0e21e |
702 | |
703 | /* There's no easy way to find the termination status a child we're |
704 | * not aware of beforehand. If we're really interested in the future, |
705 | * we can go looking for a termination mailbox, or chase after the |
706 | * accounting record for the process. |
707 | */ |
708 | *statusp = 0; |
709 | return pid; |
710 | } |
711 | |
712 | } /* end of waitpid() */ |
a0d0e21e |
713 | /*}}}*/ |
714 | /*}}}*/ |
715 | /*}}}*/ |
716 | |
717 | /*{{{ char *my_gconvert(double val, int ndig, int trail, char *buf) */ |
718 | char * |
719 | my_gconvert(double val, int ndig, int trail, char *buf) |
720 | { |
721 | static char __gcvtbuf[DBL_DIG+1]; |
722 | char *loc; |
723 | |
724 | loc = buf ? buf : __gcvtbuf; |
725 | if (val) { |
726 | if (!buf && ndig > DBL_DIG) ndig = DBL_DIG; |
727 | return gcvt(val,ndig,loc); |
728 | } |
729 | else { |
730 | loc[0] = '0'; loc[1] = '\0'; |
731 | return loc; |
732 | } |
733 | |
734 | } |
735 | /*}}}*/ |
736 | |
737 | /* |
738 | ** The following routines are provided to make life easier when |
739 | ** converting among VMS-style and Unix-style directory specifications. |
740 | ** All will take input specifications in either VMS or Unix syntax. On |
741 | ** failure, all return NULL. If successful, the routines listed below |
748a9306 |
742 | ** return a pointer to a buffer containing the appropriately |
a0d0e21e |
743 | ** reformatted spec (and, therefore, subsequent calls to that routine |
744 | ** will clobber the result), while the routines of the same names with |
745 | ** a _ts suffix appended will return a pointer to a mallocd string |
746 | ** containing the appropriately reformatted spec. |
747 | ** In all cases, only explicit syntax is altered; no check is made that |
748 | ** the resulting string is valid or that the directory in question |
749 | ** actually exists. |
750 | ** |
751 | ** fileify_dirspec() - convert a directory spec into the name of the |
752 | ** directory file (i.e. what you can stat() to see if it's a dir). |
753 | ** The style (VMS or Unix) of the result is the same as the style |
754 | ** of the parameter passed in. |
755 | ** pathify_dirspec() - convert a directory spec into a path (i.e. |
756 | ** what you prepend to a filename to indicate what directory it's in). |
757 | ** The style (VMS or Unix) of the result is the same as the style |
758 | ** of the parameter passed in. |
759 | ** tounixpath() - convert a directory spec into a Unix-style path. |
760 | ** tovmspath() - convert a directory spec into a VMS-style path. |
761 | ** tounixspec() - convert any file spec into a Unix-style file spec. |
762 | ** tovmsspec() - convert any file spec into a VMS-style spec. |
e518068a |
763 | ** |
764 | ** Copyright 1995 by Charles Bailey <bailey@genetics.upenn.edu> |
765 | ** Permission is given for non-commercial use of this code according |
766 | ** to the terms of the GNU General Public License or the Perl |
767 | ** Artistic License. Copies of each may be found in the Perl |
768 | ** standard distribution. This software is supplied without any |
769 | ** warranty whatsoever. |
a0d0e21e |
770 | */ |
771 | |
748a9306 |
772 | static char *do_tounixspec(char *, char *, int); |
773 | |
a0d0e21e |
774 | /*{{{ char *fileify_dirspec[_ts](char *path, char *buf)*/ |
775 | static char *do_fileify_dirspec(char *dir,char *buf,int ts) |
776 | { |
777 | static char __fileify_retbuf[NAM$C_MAXRSS+1]; |
778 | unsigned long int dirlen, retlen, addmfd = 0; |
779 | char *retspec, *cp1, *cp2, *lastdir; |
748a9306 |
780 | char trndir[NAM$C_MAXRSS+1], vmsdir[NAM$C_MAXRSS+1]; |
a0d0e21e |
781 | |
c07a80fd |
782 | if (!dir || !*dir) { |
783 | set_errno(EINVAL); set_vaxc_errno(SS$_BADPARAM); return NULL; |
784 | } |
a0d0e21e |
785 | dirlen = strlen(dir); |
e518068a |
786 | if (dir[dirlen-1] == '/') dir[--dirlen] = '\0'; |
c07a80fd |
787 | if (!dirlen) { |
788 | set_errno(ENOTDIR); |
789 | set_vaxc_errno(RMS$_DIR); |
790 | return NULL; |
791 | } |
e518068a |
792 | if (!strpbrk(dir+1,"/]>:")) { |
793 | strcpy(trndir,*dir == '/' ? dir + 1: dir); |
c07a80fd |
794 | while (!strpbrk(trndir,"/]>:>") && my_trnlnm(trndir,trndir,0)) ; |
e518068a |
795 | dir = trndir; |
796 | dirlen = strlen(dir); |
797 | } |
c07a80fd |
798 | /* If we were handed a rooted logical name or spec, treat it like a |
799 | * simple directory, so that |
800 | * $ Define myroot dev:[dir.] |
801 | * ... do_fileify_dirspec("myroot",buf,1) ... |
802 | * does something useful. |
803 | */ |
804 | if (!strcmp(dir+dirlen-2,".]")) { |
805 | dir[--dirlen] = '\0'; |
806 | dir[dirlen-1] = ']'; |
807 | } |
e518068a |
808 | |
a0d0e21e |
809 | if (!strpbrk(dir,"]:>")) { /* Unix-style path or plain dir name */ |
748a9306 |
810 | if (dir[0] == '.') { |
811 | if (dir[1] == '\0' || (dir[1] == '/' && dir[2] == '\0')) |
812 | return do_fileify_dirspec("[]",buf,ts); |
813 | else if (dir[1] == '.' && |
814 | (dir[2] == '\0' || (dir[2] == '/' && dir[3] == '\0'))) |
815 | return do_fileify_dirspec("[-]",buf,ts); |
816 | } |
a0d0e21e |
817 | if (dir[dirlen-1] == '/') { /* path ends with '/'; just add .dir;1 */ |
818 | dirlen -= 1; /* to last element */ |
819 | lastdir = strrchr(dir,'/'); |
820 | } |
4633a7c4 |
821 | else if ((cp1 = strstr(trndir,"/.")) != NULL) { |
822 | do { |
823 | if (*(cp1+2) == '.') cp1++; |
824 | if (*(cp1+2) == '/' || *(cp1+2) == '\0') { |
825 | addmfd = 1; |
826 | break; |
827 | } |
828 | cp1++; |
829 | } while ((cp1 = strstr(cp1,"/.")) != NULL); |
830 | /* If we have a relative path, VMSify it and let the VMS code |
831 | * below expand it, rather than repeating the code here */ |
832 | if (addmfd) { |
833 | if (do_tovmsspec(trndir,vmsdir,0) == NULL) return NULL; |
834 | if (do_fileify_dirspec(vmsdir,trndir,0) == NULL) return NULL; |
835 | return do_tounixspec(trndir,buf,ts); |
836 | } |
748a9306 |
837 | } |
a0d0e21e |
838 | else { |
839 | if (!(lastdir = cp1 = strrchr(dir,'/'))) cp1 = dir; |
840 | if ((cp2 = strchr(cp1,'.'))) { /* look for explicit type */ |
841 | if (toupper(*(cp2+1)) == 'D' && /* Yep. Is it .dir? */ |
842 | toupper(*(cp2+2)) == 'I' && |
843 | toupper(*(cp2+3)) == 'R') { |
844 | if ((cp1 = strchr(cp2,';')) || (cp1 = strchr(cp2+1,'.'))) { |
845 | if (*(cp1+1) != '1' || *(cp1+2) != '\0') { /* Version is not ;1 */ |
748a9306 |
846 | set_errno(ENOTDIR); /* Bzzt. */ |
847 | set_vaxc_errno(RMS$_DIR); |
a0d0e21e |
848 | return NULL; |
849 | } |
850 | } |
851 | dirlen = cp2 - dir; |
852 | } |
853 | else { /* There's a type, and it's not .dir. Bzzt. */ |
748a9306 |
854 | set_errno(ENOTDIR); |
855 | set_vaxc_errno(RMS$_DIR); |
a0d0e21e |
856 | return NULL; |
857 | } |
858 | } |
748a9306 |
859 | } |
860 | /* If we lead off with a device or rooted logical, add the MFD |
861 | if we're specifying a top-level directory. */ |
862 | if (lastdir && *dir == '/') { |
863 | addmfd = 1; |
864 | for (cp1 = lastdir - 1; cp1 > dir; cp1--) { |
865 | if (*cp1 == '/') { |
866 | addmfd = 0; |
867 | break; |
a0d0e21e |
868 | } |
869 | } |
748a9306 |
870 | } |
4633a7c4 |
871 | retlen = dirlen + (addmfd ? 13 : 6); |
748a9306 |
872 | if (buf) retspec = buf; |
e518068a |
873 | else if (ts) New(7009,retspec,retlen+1,char); |
748a9306 |
874 | else retspec = __fileify_retbuf; |
875 | if (addmfd) { |
876 | dirlen = lastdir - dir; |
877 | memcpy(retspec,dir,dirlen); |
878 | strcpy(&retspec[dirlen],"/000000"); |
879 | strcpy(&retspec[dirlen+7],lastdir); |
880 | } |
881 | else { |
882 | memcpy(retspec,dir,dirlen); |
883 | retspec[dirlen] = '\0'; |
a0d0e21e |
884 | } |
885 | /* We've picked up everything up to the directory file name. |
886 | Now just add the type and version, and we're set. */ |
887 | strcat(retspec,".dir;1"); |
888 | return retspec; |
889 | } |
890 | else { /* VMS-style directory spec */ |
891 | char esa[NAM$C_MAXRSS+1], term; |
e518068a |
892 | unsigned long int sts, cmplen, hasdev, hasdir, hastype, hasver; |
a0d0e21e |
893 | struct FAB dirfab = cc$rms_fab; |
894 | struct NAM savnam, dirnam = cc$rms_nam; |
895 | |
896 | dirfab.fab$b_fns = strlen(dir); |
897 | dirfab.fab$l_fna = dir; |
898 | dirfab.fab$l_nam = &dirnam; |
748a9306 |
899 | dirfab.fab$l_dna = ".DIR;1"; |
900 | dirfab.fab$b_dns = 6; |
a0d0e21e |
901 | dirnam.nam$b_ess = NAM$C_MAXRSS; |
902 | dirnam.nam$l_esa = esa; |
e518068a |
903 | if (!((sts = sys$parse(&dirfab))&1)) { |
904 | if (dirfab.fab$l_sts == RMS$_DIR) { |
905 | dirnam.nam$b_nop |= NAM$M_SYNCHK; |
906 | sts = sys$parse(&dirfab) & 1; |
907 | } |
908 | if (!sts) { |
748a9306 |
909 | set_errno(EVMSERR); |
910 | set_vaxc_errno(dirfab.fab$l_sts); |
a0d0e21e |
911 | return NULL; |
912 | } |
e518068a |
913 | } |
914 | else { |
915 | savnam = dirnam; |
916 | if (sys$search(&dirfab)&1) { /* Does the file really exist? */ |
917 | /* Yes; fake the fnb bits so we'll check type below */ |
918 | dirnam.nam$l_fnb |= NAM$M_EXP_TYPE | NAM$M_EXP_VER; |
919 | } |
920 | else { |
921 | if (dirfab.fab$l_sts != RMS$_FNF) { |
922 | set_errno(EVMSERR); |
923 | set_vaxc_errno(dirfab.fab$l_sts); |
924 | return NULL; |
925 | } |
926 | dirnam = savnam; /* No; just work with potential name */ |
927 | } |
a0d0e21e |
928 | } |
748a9306 |
929 | if (!(dirnam.nam$l_fnb & (NAM$M_EXP_DEV | NAM$M_EXP_DIR))) { |
930 | cp1 = strchr(esa,']'); |
931 | if (!cp1) cp1 = strchr(esa,'>'); |
932 | if (cp1) { /* Should always be true */ |
933 | dirnam.nam$b_esl -= cp1 - esa - 1; |
934 | memcpy(esa,cp1 + 1,dirnam.nam$b_esl); |
935 | } |
936 | } |
a0d0e21e |
937 | if (dirnam.nam$l_fnb & NAM$M_EXP_TYPE) { /* Was type specified? */ |
938 | /* Yep; check version while we're at it, if it's there. */ |
939 | cmplen = (dirnam.nam$l_fnb & NAM$M_EXP_VER) ? 6 : 4; |
940 | if (strncmp(dirnam.nam$l_type,".DIR;1",cmplen)) { |
941 | /* Something other than .DIR[;1]. Bzzt. */ |
748a9306 |
942 | set_errno(ENOTDIR); |
943 | set_vaxc_errno(RMS$_DIR); |
a0d0e21e |
944 | return NULL; |
945 | } |
748a9306 |
946 | } |
947 | esa[dirnam.nam$b_esl] = '\0'; |
948 | if (dirnam.nam$l_fnb & NAM$M_EXP_NAME) { |
949 | /* They provided at least the name; we added the type, if necessary, */ |
950 | if (buf) retspec = buf; /* in sys$parse() */ |
e518068a |
951 | else if (ts) New(7011,retspec,dirnam.nam$b_esl+1,char); |
748a9306 |
952 | else retspec = __fileify_retbuf; |
953 | strcpy(retspec,esa); |
954 | return retspec; |
955 | } |
c07a80fd |
956 | if ((cp1 = strstr(esa,".][000000]")) != NULL) { |
957 | for (cp2 = cp1 + 9; *cp2; cp1++,cp2++) *cp1 = *cp2; |
958 | *cp1 = '\0'; |
959 | dirnam.nam$b_esl -= 9; |
960 | } |
748a9306 |
961 | if ((cp1 = strrchr(esa,']')) == NULL) cp1 = strrchr(esa,'>'); |
962 | if (cp1 == NULL) return NULL; /* should never happen */ |
963 | term = *cp1; |
964 | *cp1 = '\0'; |
965 | retlen = strlen(esa); |
966 | if ((cp1 = strrchr(esa,'.')) != NULL) { |
967 | /* There's more than one directory in the path. Just roll back. */ |
968 | *cp1 = term; |
969 | if (buf) retspec = buf; |
e518068a |
970 | else if (ts) New(7011,retspec,retlen+7,char); |
748a9306 |
971 | else retspec = __fileify_retbuf; |
972 | strcpy(retspec,esa); |
a0d0e21e |
973 | } |
974 | else { |
748a9306 |
975 | if (dirnam.nam$l_fnb & NAM$M_ROOT_DIR) { |
976 | /* Go back and expand rooted logical name */ |
977 | dirnam.nam$b_nop = NAM$M_SYNCHK | NAM$M_NOCONCEAL; |
978 | if (!(sys$parse(&dirfab) & 1)) { |
979 | set_errno(EVMSERR); |
980 | set_vaxc_errno(dirfab.fab$l_sts); |
981 | return NULL; |
982 | } |
983 | retlen = dirnam.nam$b_esl - 9; /* esa - '][' - '].DIR;1' */ |
a0d0e21e |
984 | if (buf) retspec = buf; |
e518068a |
985 | else if (ts) New(7012,retspec,retlen+16,char); |
a0d0e21e |
986 | else retspec = __fileify_retbuf; |
748a9306 |
987 | cp1 = strstr(esa,"]["); |
988 | dirlen = cp1 - esa; |
989 | memcpy(retspec,esa,dirlen); |
990 | if (!strncmp(cp1+2,"000000]",7)) { |
991 | retspec[dirlen-1] = '\0'; |
4633a7c4 |
992 | for (cp1 = retspec+dirlen-1; *cp1 != '.' && *cp1 != '['; cp1--) ; |
993 | if (*cp1 == '.') *cp1 = ']'; |
994 | else { |
995 | memmove(cp1+8,cp1+1,retspec+dirlen-cp1); |
996 | memcpy(cp1+1,"000000]",7); |
997 | } |
748a9306 |
998 | } |
999 | else { |
1000 | memcpy(retspec+dirlen,cp1+2,retlen-dirlen); |
1001 | retspec[retlen] = '\0'; |
1002 | /* Convert last '.' to ']' */ |
4633a7c4 |
1003 | for (cp1 = retspec+retlen-1; *cp1 != '.' && *cp1 != '['; cp1--) ; |
1004 | if (*cp1 == '.') *cp1 = ']'; |
1005 | else { |
1006 | memmove(cp1+8,cp1+1,retspec+dirlen-cp1); |
1007 | memcpy(cp1+1,"000000]",7); |
1008 | } |
748a9306 |
1009 | } |
a0d0e21e |
1010 | } |
748a9306 |
1011 | else { /* This is a top-level dir. Add the MFD to the path. */ |
a0d0e21e |
1012 | if (buf) retspec = buf; |
e518068a |
1013 | else if (ts) New(7012,retspec,retlen+16,char); |
a0d0e21e |
1014 | else retspec = __fileify_retbuf; |
1015 | cp1 = esa; |
1016 | cp2 = retspec; |
1017 | while (*cp1 != ':') *(cp2++) = *(cp1++); |
1018 | strcpy(cp2,":[000000]"); |
1019 | cp1 += 2; |
1020 | strcpy(cp2+9,cp1); |
1021 | } |
748a9306 |
1022 | } |
1023 | /* We've set up the string up through the filename. Add the |
a0d0e21e |
1024 | type and version, and we're done. */ |
1025 | strcat(retspec,".DIR;1"); |
1026 | return retspec; |
1027 | } |
1028 | } /* end of do_fileify_dirspec() */ |
1029 | /*}}}*/ |
1030 | /* External entry points */ |
1031 | char *fileify_dirspec(char *dir, char *buf) |
1032 | { return do_fileify_dirspec(dir,buf,0); } |
1033 | char *fileify_dirspec_ts(char *dir, char *buf) |
1034 | { return do_fileify_dirspec(dir,buf,1); } |
1035 | |
1036 | /*{{{ char *pathify_dirspec[_ts](char *path, char *buf)*/ |
1037 | static char *do_pathify_dirspec(char *dir,char *buf, int ts) |
1038 | { |
1039 | static char __pathify_retbuf[NAM$C_MAXRSS+1]; |
1040 | unsigned long int retlen; |
748a9306 |
1041 | char *retpath, *cp1, *cp2, trndir[NAM$C_MAXRSS+1]; |
a0d0e21e |
1042 | |
c07a80fd |
1043 | if (!dir || !*dir) { |
1044 | set_errno(EINVAL); set_vaxc_errno(SS$_BADPARAM); return NULL; |
1045 | } |
1046 | |
1047 | if (*dir) strcpy(trndir,dir); |
1048 | else getcwd(trndir,sizeof trndir - 1); |
1049 | |
1050 | while (!strpbrk(trndir,"/]:>") && my_trnlnm(trndir,trndir,0)) { |
1051 | STRLEN trnlen = strlen(trndir); |
a0d0e21e |
1052 | |
c07a80fd |
1053 | /* Trap simple rooted lnms, and return lnm:[000000] */ |
1054 | if (!strcmp(trndir+trnlen-2,".]")) { |
1055 | if (buf) retpath = buf; |
1056 | else if (ts) New(7018,retpath,strlen(dir)+10,char); |
1057 | else retpath = __pathify_retbuf; |
1058 | strcpy(retpath,dir); |
1059 | strcat(retpath,":[000000]"); |
1060 | return retpath; |
1061 | } |
1062 | } |
748a9306 |
1063 | dir = trndir; |
1064 | |
a0d0e21e |
1065 | if (!strpbrk(dir,"]:>")) { /* Unix-style path or plain dir name */ |
748a9306 |
1066 | if (*dir == '.' && (*(dir+1) == '\0' || |
1067 | (*(dir+1) == '.' && *(dir+2) == '\0'))) |
1068 | retlen = 2 + (*(dir+1) != '\0'); |
1069 | else { |
1070 | if (!(cp1 = strrchr(dir,'/'))) cp1 = dir; |
1071 | if ((cp2 = strchr(cp1,'.')) && *(cp2+1) != '.') { |
1072 | if (toupper(*(cp2+1)) == 'D' && /* They specified .dir. */ |
1073 | toupper(*(cp2+2)) == 'I' && /* Trim it off. */ |
1074 | toupper(*(cp2+3)) == 'R') { |
1075 | retlen = cp2 - dir + 1; |
1076 | } |
1077 | else { /* Some other file type. Bzzt. */ |
1078 | set_errno(ENOTDIR); |
1079 | set_vaxc_errno(RMS$_DIR); |
1080 | return NULL; |
1081 | } |
a0d0e21e |
1082 | } |
748a9306 |
1083 | else { /* No file type present. Treat the filename as a directory. */ |
1084 | retlen = strlen(dir) + 1; |
a0d0e21e |
1085 | } |
1086 | } |
a0d0e21e |
1087 | if (buf) retpath = buf; |
e518068a |
1088 | else if (ts) New(7013,retpath,retlen+1,char); |
a0d0e21e |
1089 | else retpath = __pathify_retbuf; |
1090 | strncpy(retpath,dir,retlen-1); |
1091 | if (retpath[retlen-2] != '/') { /* If the path doesn't already end */ |
1092 | retpath[retlen-1] = '/'; /* with '/', add it. */ |
1093 | retpath[retlen] = '\0'; |
1094 | } |
1095 | else retpath[retlen-1] = '\0'; |
1096 | } |
1097 | else { /* VMS-style directory spec */ |
1098 | char esa[NAM$C_MAXRSS+1]; |
e518068a |
1099 | unsigned long int sts, cmplen; |
a0d0e21e |
1100 | struct FAB dirfab = cc$rms_fab; |
1101 | struct NAM savnam, dirnam = cc$rms_nam; |
1102 | |
1103 | dirfab.fab$b_fns = strlen(dir); |
1104 | dirfab.fab$l_fna = dir; |
748a9306 |
1105 | if (dir[dirfab.fab$b_fns-1] == ']' || |
1106 | dir[dirfab.fab$b_fns-1] == '>' || |
1107 | dir[dirfab.fab$b_fns-1] == ':') { /* It's already a VMS 'path' */ |
1108 | if (buf) retpath = buf; |
e518068a |
1109 | else if (ts) New(7014,retpath,strlen(dir)+1,char); |
748a9306 |
1110 | else retpath = __pathify_retbuf; |
1111 | strcpy(retpath,dir); |
1112 | return retpath; |
1113 | } |
1114 | dirfab.fab$l_dna = ".DIR;1"; |
1115 | dirfab.fab$b_dns = 6; |
a0d0e21e |
1116 | dirfab.fab$l_nam = &dirnam; |
e518068a |
1117 | dirnam.nam$b_ess = (unsigned char) sizeof esa - 1; |
a0d0e21e |
1118 | dirnam.nam$l_esa = esa; |
e518068a |
1119 | if (!((sts = sys$parse(&dirfab))&1)) { |
1120 | if (dirfab.fab$l_sts == RMS$_DIR) { |
1121 | dirnam.nam$b_nop |= NAM$M_SYNCHK; |
1122 | sts = sys$parse(&dirfab) & 1; |
1123 | } |
1124 | if (!sts) { |
748a9306 |
1125 | set_errno(EVMSERR); |
1126 | set_vaxc_errno(dirfab.fab$l_sts); |
a0d0e21e |
1127 | return NULL; |
1128 | } |
a0d0e21e |
1129 | } |
e518068a |
1130 | else { |
1131 | savnam = dirnam; |
1132 | if (!(sys$search(&dirfab)&1)) { /* Does the file really exist? */ |
1133 | if (dirfab.fab$l_sts != RMS$_FNF) { |
1134 | set_errno(EVMSERR); |
1135 | set_vaxc_errno(dirfab.fab$l_sts); |
1136 | return NULL; |
1137 | } |
1138 | dirnam = savnam; /* No; just work with potential name */ |
1139 | } |
1140 | } |
a0d0e21e |
1141 | if (dirnam.nam$l_fnb & NAM$M_EXP_TYPE) { /* Was type specified? */ |
1142 | /* Yep; check version while we're at it, if it's there. */ |
1143 | cmplen = (dirnam.nam$l_fnb & NAM$M_EXP_VER) ? 6 : 4; |
1144 | if (strncmp(dirnam.nam$l_type,".DIR;1",cmplen)) { |
1145 | /* Something other than .DIR[;1]. Bzzt. */ |
748a9306 |
1146 | set_errno(ENOTDIR); |
1147 | set_vaxc_errno(RMS$_DIR); |
a0d0e21e |
1148 | return NULL; |
1149 | } |
a0d0e21e |
1150 | } |
748a9306 |
1151 | /* OK, the type was fine. Now pull any file name into the |
1152 | directory path. */ |
1153 | if ((cp1 = strrchr(esa,']'))) *dirnam.nam$l_type = ']'; |
a0d0e21e |
1154 | else { |
748a9306 |
1155 | cp1 = strrchr(esa,'>'); |
1156 | *dirnam.nam$l_type = '>'; |
a0d0e21e |
1157 | } |
748a9306 |
1158 | *cp1 = '.'; |
1159 | *(dirnam.nam$l_type + 1) = '\0'; |
1160 | retlen = dirnam.nam$l_type - esa + 2; |
a0d0e21e |
1161 | if (buf) retpath = buf; |
1162 | else if (ts) New(7014,retpath,retlen,char); |
1163 | else retpath = __pathify_retbuf; |
1164 | strcpy(retpath,esa); |
1165 | } |
1166 | |
1167 | return retpath; |
1168 | } /* end of do_pathify_dirspec() */ |
1169 | /*}}}*/ |
1170 | /* External entry points */ |
1171 | char *pathify_dirspec(char *dir, char *buf) |
1172 | { return do_pathify_dirspec(dir,buf,0); } |
1173 | char *pathify_dirspec_ts(char *dir, char *buf) |
1174 | { return do_pathify_dirspec(dir,buf,1); } |
1175 | |
1176 | /*{{{ char *tounixspec[_ts](char *path, char *buf)*/ |
1177 | static char *do_tounixspec(char *spec, char *buf, int ts) |
1178 | { |
1179 | static char __tounixspec_retbuf[NAM$C_MAXRSS+1]; |
1180 | char *dirend, *rslt, *cp1, *cp2, *cp3, tmp[NAM$C_MAXRSS+1]; |
e518068a |
1181 | int devlen, dirlen, retlen = NAM$C_MAXRSS+1, dashes = 0; |
a0d0e21e |
1182 | |
748a9306 |
1183 | if (spec == NULL) return NULL; |
e518068a |
1184 | if (strlen(spec) > NAM$C_MAXRSS) return NULL; |
a0d0e21e |
1185 | if (buf) rslt = buf; |
e518068a |
1186 | else if (ts) { |
1187 | retlen = strlen(spec); |
1188 | cp1 = strchr(spec,'['); |
1189 | if (!cp1) cp1 = strchr(spec,'<'); |
1190 | if (cp1) { |
1191 | for (cp1++; *cp1 == '-'; cp1++) dashes++; /* VMS '-' ==> Unix '../' */ |
1192 | } |
1193 | New(7015,rslt,retlen+1+2*dashes,char); |
1194 | } |
a0d0e21e |
1195 | else rslt = __tounixspec_retbuf; |
1196 | if (strchr(spec,'/') != NULL) { |
1197 | strcpy(rslt,spec); |
1198 | return rslt; |
1199 | } |
1200 | |
1201 | cp1 = rslt; |
1202 | cp2 = spec; |
1203 | dirend = strrchr(spec,']'); |
1204 | if (dirend == NULL) dirend = strrchr(spec,'>'); |
1205 | if (dirend == NULL) dirend = strchr(spec,':'); |
1206 | if (dirend == NULL) { |
1207 | strcpy(rslt,spec); |
1208 | return rslt; |
1209 | } |
1210 | if (*cp2 != '[') { |
1211 | *(cp1++) = '/'; |
1212 | } |
1213 | else { /* the VMS spec begins with directories */ |
1214 | cp2++; |
1215 | if (*cp2 == '-') { |
1216 | while (*cp2 == '-') { |
1217 | *(cp1++) = '.'; *(cp1++) = '.'; *(cp1++) = '/'; |
1218 | cp2++; |
1219 | } |
1220 | if (*cp2 != '.' && *cp2 != ']' && *cp2 != '>') { /* we don't allow */ |
1221 | if (ts) Safefree(rslt); /* filespecs like */ |
748a9306 |
1222 | set_errno(EINVAL); set_vaxc_errno(RMS$_SYN); /* [--foo.bar] */ |
a0d0e21e |
1223 | return NULL; |
1224 | } |
1225 | cp2++; |
1226 | } |
1227 | else if ( *(cp2) != '.') { /* add the implied device into the Unix spec */ |
1228 | *(cp1++) = '/'; |
1229 | if (getcwd(tmp,sizeof tmp,1) == NULL) { |
1230 | if (ts) Safefree(rslt); |
1231 | return NULL; |
1232 | } |
1233 | do { |
1234 | cp3 = tmp; |
1235 | while (*cp3 != ':' && *cp3) cp3++; |
1236 | *(cp3++) = '\0'; |
1237 | if (strchr(cp3,']') != NULL) break; |
e518068a |
1238 | } while (((cp3 = my_getenv(tmp)) != NULL) && strcpy(tmp,cp3)); |
a0d0e21e |
1239 | cp3 = tmp; |
1240 | while (*cp3) *(cp1++) = *(cp3++); |
1241 | *(cp1++) = '/'; |
e518068a |
1242 | if (ts && |
1243 | ((devlen = strlen(tmp)) + (dirlen = strlen(cp2)) + 1 > retlen)) { |
1244 | int offset = cp1 - rslt; |
1245 | |
1246 | retlen = devlen + dirlen; |
1247 | Renew(rslt,retlen+1+2*dashes,char); |
1248 | cp1 = rslt + offset; |
a0d0e21e |
1249 | } |
1250 | } |
1251 | else cp2++; |
1252 | } |
1253 | for (; cp2 <= dirend; cp2++) { |
1254 | if (*cp2 == ':') { |
1255 | *(cp1++) = '/'; |
1256 | if (*(cp2+1) == '[') cp2++; |
1257 | } |
1258 | else if (*cp2 == ']' || *cp2 == '>') *(cp1++) = '/'; |
1259 | else if (*cp2 == '.') { |
1260 | *(cp1++) = '/'; |
e518068a |
1261 | if (*(cp2+1) == ']' || *(cp2+1) == '>') { |
1262 | while (*(cp2+1) == ']' || *(cp2+1) == '>' || |
1263 | *(cp2+1) == '[' || *(cp2+1) == '<') cp2++; |
1264 | if (!strncmp(cp2,"[000000",7) && (*(cp2+7) == ']' || |
1265 | *(cp2+7) == '>' || *(cp2+7) == '.')) cp2 += 7; |
1266 | } |
a0d0e21e |
1267 | } |
1268 | else if (*cp2 == '-') { |
1269 | if (*(cp2-1) == '[' || *(cp2-1) == '<' || *(cp2-1) == '.') { |
1270 | while (*cp2 == '-') { |
1271 | cp2++; |
1272 | *(cp1++) = '.'; *(cp1++) = '.'; *(cp1++) = '/'; |
1273 | } |
1274 | if (*cp2 != '.' && *cp2 != ']' && *cp2 != '>') { /* we don't allow */ |
1275 | if (ts) Safefree(rslt); /* filespecs like */ |
748a9306 |
1276 | set_errno(EINVAL); set_vaxc_errno(RMS$_SYN); /* [--foo.bar] */ |
a0d0e21e |
1277 | return NULL; |
1278 | } |
1279 | cp2++; |
1280 | } |
1281 | else *(cp1++) = *cp2; |
1282 | } |
1283 | else *(cp1++) = *cp2; |
1284 | } |
1285 | while (*cp2) *(cp1++) = *(cp2++); |
1286 | *cp1 = '\0'; |
1287 | |
1288 | return rslt; |
1289 | |
1290 | } /* end of do_tounixspec() */ |
1291 | /*}}}*/ |
1292 | /* External entry points */ |
1293 | char *tounixspec(char *spec, char *buf) { return do_tounixspec(spec,buf,0); } |
1294 | char *tounixspec_ts(char *spec, char *buf) { return do_tounixspec(spec,buf,1); } |
1295 | |
1296 | /*{{{ char *tovmsspec[_ts](char *path, char *buf)*/ |
1297 | static char *do_tovmsspec(char *path, char *buf, int ts) { |
1298 | static char __tovmsspec_retbuf[NAM$C_MAXRSS+1]; |
e518068a |
1299 | char *rslt, *dirend; |
1300 | register char *cp1, *cp2; |
1301 | unsigned long int infront = 0, hasdir = 1; |
a0d0e21e |
1302 | |
748a9306 |
1303 | if (path == NULL) return NULL; |
a0d0e21e |
1304 | if (buf) rslt = buf; |
e518068a |
1305 | else if (ts) New(7016,rslt,strlen(path)+9,char); |
a0d0e21e |
1306 | else rslt = __tovmsspec_retbuf; |
748a9306 |
1307 | if (strpbrk(path,"]:>") || |
a0d0e21e |
1308 | (dirend = strrchr(path,'/')) == NULL) { |
748a9306 |
1309 | if (path[0] == '.') { |
1310 | if (path[1] == '\0') strcpy(rslt,"[]"); |
1311 | else if (path[1] == '.' && path[2] == '\0') strcpy(rslt,"[-]"); |
1312 | else strcpy(rslt,path); /* probably garbage */ |
1313 | } |
1314 | else strcpy(rslt,path); |
a0d0e21e |
1315 | return rslt; |
1316 | } |
748a9306 |
1317 | if (*(dirend+1) == '.') { /* do we have trailing "/." or "/.."? */ |
1318 | if (!*(dirend+2)) dirend +=2; |
1319 | if (*(dirend+2) == '.' && !*(dirend+3)) dirend += 3; |
1320 | } |
a0d0e21e |
1321 | cp1 = rslt; |
1322 | cp2 = path; |
1323 | if (*cp2 == '/') { |
e518068a |
1324 | char trndev[NAM$C_MAXRSS+1]; |
1325 | int islnm, rooted; |
1326 | STRLEN trnend; |
1327 | |
a0d0e21e |
1328 | while (*(++cp2) != '/' && *cp2) *(cp1++) = *cp2; |
e518068a |
1329 | *cp1 = '\0'; |
c07a80fd |
1330 | islnm = my_trnlnm(rslt,trndev,0); |
e518068a |
1331 | trnend = islnm ? strlen(trndev) - 1 : 0; |
1332 | islnm = trnend ? (trndev[trnend] == ']' || trndev[trnend] == '>') : 0; |
1333 | rooted = islnm ? (trndev[trnend-1] == '.') : 0; |
1334 | /* If the first element of the path is a logical name, determine |
1335 | * whether it has to be translated so we can add more directories. */ |
1336 | if (!islnm || rooted) { |
1337 | *(cp1++) = ':'; |
1338 | *(cp1++) = '['; |
1339 | if (cp2 == dirend) while (infront++ < 6) *(cp1++) = '0'; |
1340 | else cp2++; |
1341 | } |
1342 | else { |
1343 | if (cp2 != dirend) { |
1344 | if (!buf && ts) Renew(rslt,strlen(path)-strlen(rslt)+trnend+4,char); |
1345 | strcpy(rslt,trndev); |
1346 | cp1 = rslt + trnend; |
1347 | *(cp1++) = '.'; |
1348 | cp2++; |
1349 | } |
1350 | else { |
1351 | *(cp1++) = ':'; |
1352 | hasdir = 0; |
1353 | } |
1354 | } |
748a9306 |
1355 | } |
a0d0e21e |
1356 | else { |
1357 | *(cp1++) = '['; |
748a9306 |
1358 | if (*cp2 == '.') { |
1359 | if (*(cp2+1) == '/' || *(cp2+1) == '\0') { |
1360 | cp2 += 2; /* skip over "./" - it's redundant */ |
1361 | *(cp1++) = '.'; /* but it does indicate a relative dirspec */ |
1362 | } |
1363 | else if (*(cp2+1) == '.' && (*(cp2+2) == '/' || *(cp2+2) == '\0')) { |
1364 | *(cp1++) = '-'; /* "../" --> "-" */ |
1365 | cp2 += 3; |
1366 | } |
1367 | if (cp2 > dirend) cp2 = dirend; |
1368 | } |
1369 | else *(cp1++) = '.'; |
1370 | } |
1371 | for (; cp2 < dirend; cp2++) { |
1372 | if (*cp2 == '/') { |
1373 | if (*(cp1-1) != '.') *(cp1++) = '.'; |
1374 | infront = 0; |
1375 | } |
1376 | else if (!infront && *cp2 == '.') { |
4633a7c4 |
1377 | if (*(cp2+1) == '/') cp2++; /* skip over "./" - it's redundant */ |
1378 | else if (*(cp2+1) == '\0') { cp2++; break; } |
748a9306 |
1379 | else if (*(cp2+1) == '.' && (*(cp2+2) == '/' || *(cp2+2) == '\0')) { |
1380 | if (*(cp1-1) == '-' || *(cp1-1) == '[') *(cp1++) = '-'; /* handle "../" */ |
1381 | else if (*(cp1-2) == '[') *(cp1-1) = '-'; |
1382 | else { /* back up over previous directory name */ |
1383 | cp1--; |
1384 | while (*(cp1-1) != '.' && *(cp1-1) != '[') cp1--; |
4633a7c4 |
1385 | if (*(cp1-1) == '[') { |
1386 | memcpy(cp1,"000000.",7); |
1387 | cp1 += 7; |
1388 | } |
748a9306 |
1389 | } |
1390 | cp2 += 2; |
1391 | if (cp2 == dirend) { |
1392 | if (*(cp1-1) == '.') cp1--; |
1393 | break; |
1394 | } |
1395 | } |
1396 | else *(cp1++) = '_'; /* fix up syntax - '.' in name not allowed */ |
1397 | } |
1398 | else { |
e518068a |
1399 | if (!infront && *(cp1-1) == '-') *(cp1++) = '.'; |
748a9306 |
1400 | if (*cp2 == '/') *(cp1++) = '.'; |
1401 | else if (*cp2 == '.') *(cp1++) = '_'; |
1402 | else *(cp1++) = *cp2; |
1403 | infront = 1; |
1404 | } |
a0d0e21e |
1405 | } |
748a9306 |
1406 | if (*(cp1-1) == '.') cp1--; /* Unix spec ending in '/' ==> trailing '.' */ |
e518068a |
1407 | if (hasdir) *(cp1++) = ']'; |
748a9306 |
1408 | if (*cp2) cp2++; /* check in case we ended with trailing '..' */ |
a0d0e21e |
1409 | while (*cp2) *(cp1++) = *(cp2++); |
1410 | *cp1 = '\0'; |
1411 | |
1412 | return rslt; |
1413 | |
1414 | } /* end of do_tovmsspec() */ |
1415 | /*}}}*/ |
1416 | /* External entry points */ |
1417 | char *tovmsspec(char *path, char *buf) { return do_tovmsspec(path,buf,0); } |
1418 | char *tovmsspec_ts(char *path, char *buf) { return do_tovmsspec(path,buf,1); } |
1419 | |
1420 | /*{{{ char *tovmspath[_ts](char *path, char *buf)*/ |
1421 | static char *do_tovmspath(char *path, char *buf, int ts) { |
1422 | static char __tovmspath_retbuf[NAM$C_MAXRSS+1]; |
1423 | int vmslen; |
1424 | char pathified[NAM$C_MAXRSS+1], vmsified[NAM$C_MAXRSS+1], *cp; |
1425 | |
748a9306 |
1426 | if (path == NULL) return NULL; |
a0d0e21e |
1427 | if (do_pathify_dirspec(path,pathified,0) == NULL) return NULL; |
1428 | if (do_tovmsspec(pathified,buf ? buf : vmsified,0) == NULL) return NULL; |
1429 | if (buf) return buf; |
1430 | else if (ts) { |
1431 | vmslen = strlen(vmsified); |
e518068a |
1432 | New(7017,cp,vmslen+1,char); |
a0d0e21e |
1433 | memcpy(cp,vmsified,vmslen); |
1434 | cp[vmslen] = '\0'; |
1435 | return cp; |
1436 | } |
1437 | else { |
1438 | strcpy(__tovmspath_retbuf,vmsified); |
1439 | return __tovmspath_retbuf; |
1440 | } |
1441 | |
1442 | } /* end of do_tovmspath() */ |
1443 | /*}}}*/ |
1444 | /* External entry points */ |
1445 | char *tovmspath(char *path, char *buf) { return do_tovmspath(path,buf,0); } |
1446 | char *tovmspath_ts(char *path, char *buf) { return do_tovmspath(path,buf,1); } |
1447 | |
1448 | |
1449 | /*{{{ char *tounixpath[_ts](char *path, char *buf)*/ |
1450 | static char *do_tounixpath(char *path, char *buf, int ts) { |
1451 | static char __tounixpath_retbuf[NAM$C_MAXRSS+1]; |
1452 | int unixlen; |
1453 | char pathified[NAM$C_MAXRSS+1], unixified[NAM$C_MAXRSS+1], *cp; |
1454 | |
748a9306 |
1455 | if (path == NULL) return NULL; |
a0d0e21e |
1456 | if (do_pathify_dirspec(path,pathified,0) == NULL) return NULL; |
1457 | if (do_tounixspec(pathified,buf ? buf : unixified,0) == NULL) return NULL; |
1458 | if (buf) return buf; |
1459 | else if (ts) { |
1460 | unixlen = strlen(unixified); |
e518068a |
1461 | New(7017,cp,unixlen+1,char); |
a0d0e21e |
1462 | memcpy(cp,unixified,unixlen); |
1463 | cp[unixlen] = '\0'; |
1464 | return cp; |
1465 | } |
1466 | else { |
1467 | strcpy(__tounixpath_retbuf,unixified); |
1468 | return __tounixpath_retbuf; |
1469 | } |
1470 | |
1471 | } /* end of do_tounixpath() */ |
1472 | /*}}}*/ |
1473 | /* External entry points */ |
1474 | char *tounixpath(char *path, char *buf) { return do_tounixpath(path,buf,0); } |
1475 | char *tounixpath_ts(char *path, char *buf) { return do_tounixpath(path,buf,1); } |
1476 | |
1477 | /* |
1478 | * @(#)argproc.c 2.2 94/08/16 Mark Pizzolato (mark@infocomm.com) |
1479 | * |
1480 | ***************************************************************************** |
1481 | * * |
1482 | * Copyright (C) 1989-1994 by * |
1483 | * Mark Pizzolato - INFO COMM, Danville, California (510) 837-5600 * |
1484 | * * |
1485 | * Permission is hereby granted for the reproduction of this software, * |
1486 | * on condition that this copyright notice is included in the reproduction, * |
1487 | * and that such reproduction is not for purposes of profit or material * |
1488 | * gain. * |
1489 | * * |
1490 | * 27-Aug-1994 Modified for inclusion in perl5 * |
1491 | * by Charles Bailey bailey@genetics.upenn.edu * |
1492 | ***************************************************************************** |
1493 | */ |
1494 | |
1495 | /* |
1496 | * getredirection() is intended to aid in porting C programs |
1497 | * to VMS (Vax-11 C). The native VMS environment does not support |
1498 | * '>' and '<' I/O redirection, or command line wild card expansion, |
1499 | * or a command line pipe mechanism using the '|' AND background |
1500 | * command execution '&'. All of these capabilities are provided to any |
1501 | * C program which calls this procedure as the first thing in the |
1502 | * main program. |
1503 | * The piping mechanism will probably work with almost any 'filter' type |
1504 | * of program. With suitable modification, it may useful for other |
1505 | * portability problems as well. |
1506 | * |
1507 | * Author: Mark Pizzolato mark@infocomm.com |
1508 | */ |
1509 | struct list_item |
1510 | { |
1511 | struct list_item *next; |
1512 | char *value; |
1513 | }; |
1514 | |
1515 | static void add_item(struct list_item **head, |
1516 | struct list_item **tail, |
1517 | char *value, |
1518 | int *count); |
1519 | |
1520 | static void expand_wild_cards(char *item, |
1521 | struct list_item **head, |
1522 | struct list_item **tail, |
1523 | int *count); |
1524 | |
1525 | static int background_process(int argc, char **argv); |
1526 | |
1527 | static void pipe_and_fork(char **cmargv); |
1528 | |
1529 | /*{{{ void getredirection(int *ac, char ***av)*/ |
1530 | void |
1531 | getredirection(int *ac, char ***av) |
1532 | /* |
1533 | * Process vms redirection arg's. Exit if any error is seen. |
1534 | * If getredirection() processes an argument, it is erased |
1535 | * from the vector. getredirection() returns a new argc and argv value. |
1536 | * In the event that a background command is requested (by a trailing "&"), |
1537 | * this routine creates a background subprocess, and simply exits the program. |
1538 | * |
1539 | * Warning: do not try to simplify the code for vms. The code |
1540 | * presupposes that getredirection() is called before any data is |
1541 | * read from stdin or written to stdout. |
1542 | * |
1543 | * Normal usage is as follows: |
1544 | * |
1545 | * main(argc, argv) |
1546 | * int argc; |
1547 | * char *argv[]; |
1548 | * { |
1549 | * getredirection(&argc, &argv); |
1550 | * } |
1551 | */ |
1552 | { |
1553 | int argc = *ac; /* Argument Count */ |
1554 | char **argv = *av; /* Argument Vector */ |
1555 | char *ap; /* Argument pointer */ |
1556 | int j; /* argv[] index */ |
1557 | int item_count = 0; /* Count of Items in List */ |
1558 | struct list_item *list_head = 0; /* First Item in List */ |
1559 | struct list_item *list_tail; /* Last Item in List */ |
1560 | char *in = NULL; /* Input File Name */ |
1561 | char *out = NULL; /* Output File Name */ |
1562 | char *outmode = "w"; /* Mode to Open Output File */ |
1563 | char *err = NULL; /* Error File Name */ |
1564 | char *errmode = "w"; /* Mode to Open Error File */ |
1565 | int cmargc = 0; /* Piped Command Arg Count */ |
1566 | char **cmargv = NULL;/* Piped Command Arg Vector */ |
a0d0e21e |
1567 | |
1568 | /* |
1569 | * First handle the case where the last thing on the line ends with |
1570 | * a '&'. This indicates the desire for the command to be run in a |
1571 | * subprocess, so we satisfy that desire. |
1572 | */ |
1573 | ap = argv[argc-1]; |
1574 | if (0 == strcmp("&", ap)) |
1575 | exit(background_process(--argc, argv)); |
e518068a |
1576 | if (*ap && '&' == ap[strlen(ap)-1]) |
a0d0e21e |
1577 | { |
1578 | ap[strlen(ap)-1] = '\0'; |
1579 | exit(background_process(argc, argv)); |
1580 | } |
1581 | /* |
1582 | * Now we handle the general redirection cases that involve '>', '>>', |
1583 | * '<', and pipes '|'. |
1584 | */ |
1585 | for (j = 0; j < argc; ++j) |
1586 | { |
1587 | if (0 == strcmp("<", argv[j])) |
1588 | { |
1589 | if (j+1 >= argc) |
1590 | { |
748a9306 |
1591 | fprintf(stderr,"No input file after < on command line"); |
1592 | exit(LIB$_WRONUMARG); |
a0d0e21e |
1593 | } |
1594 | in = argv[++j]; |
1595 | continue; |
1596 | } |
1597 | if ('<' == *(ap = argv[j])) |
1598 | { |
1599 | in = 1 + ap; |
1600 | continue; |
1601 | } |
1602 | if (0 == strcmp(">", ap)) |
1603 | { |
1604 | if (j+1 >= argc) |
1605 | { |
748a9306 |
1606 | fprintf(stderr,"No output file after > on command line"); |
1607 | exit(LIB$_WRONUMARG); |
a0d0e21e |
1608 | } |
1609 | out = argv[++j]; |
1610 | continue; |
1611 | } |
1612 | if ('>' == *ap) |
1613 | { |
1614 | if ('>' == ap[1]) |
1615 | { |
1616 | outmode = "a"; |
1617 | if ('\0' == ap[2]) |
1618 | out = argv[++j]; |
1619 | else |
1620 | out = 2 + ap; |
1621 | } |
1622 | else |
1623 | out = 1 + ap; |
1624 | if (j >= argc) |
1625 | { |
748a9306 |
1626 | fprintf(stderr,"No output file after > or >> on command line"); |
1627 | exit(LIB$_WRONUMARG); |
a0d0e21e |
1628 | } |
1629 | continue; |
1630 | } |
1631 | if (('2' == *ap) && ('>' == ap[1])) |
1632 | { |
1633 | if ('>' == ap[2]) |
1634 | { |
1635 | errmode = "a"; |
1636 | if ('\0' == ap[3]) |
1637 | err = argv[++j]; |
1638 | else |
1639 | err = 3 + ap; |
1640 | } |
1641 | else |
1642 | if ('\0' == ap[2]) |
1643 | err = argv[++j]; |
1644 | else |
748a9306 |
1645 | err = 2 + ap; |
a0d0e21e |
1646 | if (j >= argc) |
1647 | { |
748a9306 |
1648 | fprintf(stderr,"No output file after 2> or 2>> on command line"); |
1649 | exit(LIB$_WRONUMARG); |
a0d0e21e |
1650 | } |
1651 | continue; |
1652 | } |
1653 | if (0 == strcmp("|", argv[j])) |
1654 | { |
1655 | if (j+1 >= argc) |
1656 | { |
748a9306 |
1657 | fprintf(stderr,"No command into which to pipe on command line"); |
1658 | exit(LIB$_WRONUMARG); |
a0d0e21e |
1659 | } |
1660 | cmargc = argc-(j+1); |
1661 | cmargv = &argv[j+1]; |
1662 | argc = j; |
1663 | continue; |
1664 | } |
1665 | if ('|' == *(ap = argv[j])) |
1666 | { |
1667 | ++argv[j]; |
1668 | cmargc = argc-j; |
1669 | cmargv = &argv[j]; |
1670 | argc = j; |
1671 | continue; |
1672 | } |
1673 | expand_wild_cards(ap, &list_head, &list_tail, &item_count); |
1674 | } |
1675 | /* |
1676 | * Allocate and fill in the new argument vector, Some Unix's terminate |
1677 | * the list with an extra null pointer. |
1678 | */ |
1679 | New(7002, argv, item_count+1, char *); |
1680 | *av = argv; |
1681 | for (j = 0; j < item_count; ++j, list_head = list_head->next) |
1682 | argv[j] = list_head->value; |
1683 | *ac = item_count; |
1684 | if (cmargv != NULL) |
1685 | { |
1686 | if (out != NULL) |
1687 | { |
748a9306 |
1688 | fprintf(stderr,"'|' and '>' may not both be specified on command line"); |
1689 | exit(LIB$_INVARGORD); |
a0d0e21e |
1690 | } |
1691 | pipe_and_fork(cmargv); |
1692 | } |
1693 | |
1694 | /* Check for input from a pipe (mailbox) */ |
1695 | |
1696 | if (1 == isapipe(0)) |
1697 | { |
1698 | char mbxname[L_tmpnam]; |
1699 | long int bufsize; |
1700 | long int dvi_item = DVI$_DEVBUFSIZ; |
1701 | $DESCRIPTOR(mbxnam, ""); |
1702 | $DESCRIPTOR(mbxdevnam, ""); |
1703 | |
1704 | /* Input from a pipe, reopen it in binary mode to disable */ |
1705 | /* carriage control processing. */ |
1706 | |
1707 | if (in != NULL) |
1708 | { |
748a9306 |
1709 | fprintf(stderr,"'|' and '<' may not both be specified on command line"); |
1710 | exit(LIB$_INVARGORD); |
a0d0e21e |
1711 | } |
748a9306 |
1712 | fgetname(stdin, mbxname,1); |
a0d0e21e |
1713 | mbxnam.dsc$a_pointer = mbxname; |
1714 | mbxnam.dsc$w_length = strlen(mbxnam.dsc$a_pointer); |
1715 | lib$getdvi(&dvi_item, 0, &mbxnam, &bufsize, 0, 0); |
1716 | mbxdevnam.dsc$a_pointer = mbxname; |
1717 | mbxdevnam.dsc$w_length = sizeof(mbxname); |
1718 | dvi_item = DVI$_DEVNAM; |
1719 | lib$getdvi(&dvi_item, 0, &mbxnam, 0, &mbxdevnam, &mbxdevnam.dsc$w_length); |
1720 | mbxdevnam.dsc$a_pointer[mbxdevnam.dsc$w_length] = '\0'; |
748a9306 |
1721 | set_errno(0); |
1722 | set_vaxc_errno(1); |
a0d0e21e |
1723 | freopen(mbxname, "rb", stdin); |
1724 | if (errno != 0) |
1725 | { |
748a9306 |
1726 | fprintf(stderr,"Can't reopen input pipe (name: %s) in binary mode",mbxname); |
1727 | exit(vaxc$errno); |
a0d0e21e |
1728 | } |
1729 | } |
1730 | if ((in != NULL) && (NULL == freopen(in, "r", stdin, "mbc=32", "mbf=2"))) |
1731 | { |
748a9306 |
1732 | fprintf(stderr,"Can't open input file %s as stdin",in); |
1733 | exit(vaxc$errno); |
a0d0e21e |
1734 | } |
1735 | if ((out != NULL) && (NULL == freopen(out, outmode, stdout, "mbc=32", "mbf=2"))) |
1736 | { |
748a9306 |
1737 | fprintf(stderr,"Can't open output file %s as stdout",out); |
1738 | exit(vaxc$errno); |
a0d0e21e |
1739 | } |
748a9306 |
1740 | if (err != NULL) { |
1741 | FILE *tmperr; |
1742 | if (NULL == (tmperr = fopen(err, errmode, "mbc=32", "mbf=2"))) |
1743 | { |
1744 | fprintf(stderr,"Can't open error file %s as stderr",err); |
1745 | exit(vaxc$errno); |
1746 | } |
1747 | fclose(tmperr); |
1748 | if (NULL == freopen(err, "a", stderr, "mbc=32", "mbf=2")) |
1749 | { |
1750 | exit(vaxc$errno); |
1751 | } |
a0d0e21e |
1752 | } |
1753 | #ifdef ARGPROC_DEBUG |
1754 | fprintf(stderr, "Arglist:\n"); |
1755 | for (j = 0; j < *ac; ++j) |
1756 | fprintf(stderr, "argv[%d] = '%s'\n", j, argv[j]); |
1757 | #endif |
1758 | } /* end of getredirection() */ |
1759 | /*}}}*/ |
1760 | |
1761 | static void add_item(struct list_item **head, |
1762 | struct list_item **tail, |
1763 | char *value, |
1764 | int *count) |
1765 | { |
1766 | if (*head == 0) |
1767 | { |
1768 | New(7003,*head,1,struct list_item); |
1769 | *tail = *head; |
1770 | } |
1771 | else { |
1772 | New(7004,(*tail)->next,1,struct list_item); |
1773 | *tail = (*tail)->next; |
1774 | } |
1775 | (*tail)->value = value; |
1776 | ++(*count); |
1777 | } |
1778 | |
1779 | static void expand_wild_cards(char *item, |
1780 | struct list_item **head, |
1781 | struct list_item **tail, |
1782 | int *count) |
1783 | { |
1784 | int expcount = 0; |
748a9306 |
1785 | unsigned long int context = 0; |
a0d0e21e |
1786 | int isunix = 0; |
a0d0e21e |
1787 | char *had_version; |
1788 | char *had_device; |
1789 | int had_directory; |
1790 | char *devdir; |
1791 | char vmsspec[NAM$C_MAXRSS+1]; |
1792 | $DESCRIPTOR(filespec, ""); |
748a9306 |
1793 | $DESCRIPTOR(defaultspec, "SYS$DISK:[]"); |
a0d0e21e |
1794 | $DESCRIPTOR(resultspec, ""); |
c07a80fd |
1795 | unsigned long int zero = 0, sts; |
a0d0e21e |
1796 | |
1797 | if (strcspn(item, "*%") == strlen(item)) |
1798 | { |
1799 | add_item(head, tail, item, count); |
1800 | return; |
1801 | } |
1802 | resultspec.dsc$b_dtype = DSC$K_DTYPE_T; |
1803 | resultspec.dsc$b_class = DSC$K_CLASS_D; |
1804 | resultspec.dsc$a_pointer = NULL; |
748a9306 |
1805 | if ((isunix = (int) strchr(item,'/')) != (int) NULL) |
a0d0e21e |
1806 | filespec.dsc$a_pointer = do_tovmsspec(item,vmsspec,0); |
1807 | if (!isunix || !filespec.dsc$a_pointer) |
1808 | filespec.dsc$a_pointer = item; |
1809 | filespec.dsc$w_length = strlen(filespec.dsc$a_pointer); |
1810 | /* |
1811 | * Only return version specs, if the caller specified a version |
1812 | */ |
1813 | had_version = strchr(item, ';'); |
1814 | /* |
1815 | * Only return device and directory specs, if the caller specifed either. |
1816 | */ |
1817 | had_device = strchr(item, ':'); |
1818 | had_directory = (isunix || NULL != strchr(item, '[')) || (NULL != strchr(item, '<')); |
1819 | |
c07a80fd |
1820 | while (1 == (1 & (sts = lib$find_file(&filespec, &resultspec, &context, |
1821 | &defaultspec, 0, 0, &zero)))) |
a0d0e21e |
1822 | { |
1823 | char *string; |
1824 | char *c; |
1825 | |
1826 | New(7005,string,resultspec.dsc$w_length+1,char); |
1827 | strncpy(string, resultspec.dsc$a_pointer, resultspec.dsc$w_length); |
1828 | string[resultspec.dsc$w_length] = '\0'; |
1829 | if (NULL == had_version) |
1830 | *((char *)strrchr(string, ';')) = '\0'; |
1831 | if ((!had_directory) && (had_device == NULL)) |
1832 | { |
1833 | if (NULL == (devdir = strrchr(string, ']'))) |
1834 | devdir = strrchr(string, '>'); |
1835 | strcpy(string, devdir + 1); |
1836 | } |
1837 | /* |
1838 | * Be consistent with what the C RTL has already done to the rest of |
1839 | * the argv items and lowercase all of these names. |
1840 | */ |
1841 | for (c = string; *c; ++c) |
1842 | if (isupper(*c)) |
1843 | *c = tolower(*c); |
1844 | if (isunix) trim_unixpath(item,string); |
1845 | add_item(head, tail, string, count); |
1846 | ++expcount; |
1847 | } |
c07a80fd |
1848 | if (sts != RMS$_NMF) |
1849 | { |
1850 | set_vaxc_errno(sts); |
1851 | switch (sts) |
1852 | { |
1853 | case RMS$_FNF: |
1854 | case RMS$_DIR: |
1855 | set_errno(ENOENT); break; |
1856 | case RMS$_DEV: |
1857 | set_errno(ENODEV); break; |
1858 | case RMS$_SYN: |
1859 | set_errno(EINVAL); break; |
1860 | case RMS$_PRV: |
1861 | set_errno(EACCES); break; |
1862 | default: |
1863 | _ckvmssts(sts); |
1864 | } |
1865 | } |
a0d0e21e |
1866 | if (expcount == 0) |
1867 | add_item(head, tail, item, count); |
c07a80fd |
1868 | _ckvmssts(lib$sfree1_dd(&resultspec)); |
1869 | _ckvmssts(lib$find_file_end(&context)); |
a0d0e21e |
1870 | } |
1871 | |
1872 | static int child_st[2];/* Event Flag set when child process completes */ |
1873 | |
748a9306 |
1874 | static unsigned short child_chan;/* I/O Channel for Pipe Mailbox */ |
a0d0e21e |
1875 | |
748a9306 |
1876 | static unsigned long int exit_handler(int *status) |
a0d0e21e |
1877 | { |
1878 | short iosb[4]; |
1879 | |
1880 | if (0 == child_st[0]) |
1881 | { |
1882 | #ifdef ARGPROC_DEBUG |
1883 | fprintf(stderr, "Waiting for Child Process to Finish . . .\n"); |
1884 | #endif |
1885 | fflush(stdout); /* Have to flush pipe for binary data to */ |
1886 | /* terminate properly -- <tp@mccall.com> */ |
1887 | sys$qiow(0, child_chan, IO$_WRITEOF, iosb, 0, 0, 0, 0, 0, 0, 0, 0); |
1888 | sys$dassgn(child_chan); |
1889 | fclose(stdout); |
1890 | sys$synch(0, child_st); |
1891 | } |
1892 | return(1); |
1893 | } |
1894 | |
1895 | static void sig_child(int chan) |
1896 | { |
1897 | #ifdef ARGPROC_DEBUG |
1898 | fprintf(stderr, "Child Completion AST\n"); |
1899 | #endif |
1900 | if (child_st[0] == 0) |
1901 | child_st[0] = 1; |
1902 | } |
1903 | |
748a9306 |
1904 | static struct exit_control_block exit_block = |
a0d0e21e |
1905 | { |
1906 | 0, |
1907 | exit_handler, |
1908 | 1, |
1909 | &exit_block.exit_status, |
1910 | 0 |
1911 | }; |
1912 | |
1913 | static void pipe_and_fork(char **cmargv) |
1914 | { |
1915 | char subcmd[2048]; |
1916 | $DESCRIPTOR(cmddsc, ""); |
1917 | static char mbxname[64]; |
1918 | $DESCRIPTOR(mbxdsc, mbxname); |
a0d0e21e |
1919 | int pid, j; |
a0d0e21e |
1920 | unsigned long int zero = 0, one = 1; |
1921 | |
1922 | strcpy(subcmd, cmargv[0]); |
1923 | for (j = 1; NULL != cmargv[j]; ++j) |
1924 | { |
1925 | strcat(subcmd, " \""); |
1926 | strcat(subcmd, cmargv[j]); |
1927 | strcat(subcmd, "\""); |
1928 | } |
1929 | cmddsc.dsc$a_pointer = subcmd; |
1930 | cmddsc.dsc$w_length = strlen(cmddsc.dsc$a_pointer); |
1931 | |
1932 | create_mbx(&child_chan,&mbxdsc); |
1933 | #ifdef ARGPROC_DEBUG |
1934 | fprintf(stderr, "Pipe Mailbox Name = '%s'\n", mbxdsc.dsc$a_pointer); |
1935 | fprintf(stderr, "Sub Process Command = '%s'\n", cmddsc.dsc$a_pointer); |
1936 | #endif |
748a9306 |
1937 | _ckvmssts(lib$spawn(&cmddsc, &mbxdsc, 0, &one, |
a0d0e21e |
1938 | 0, &pid, child_st, &zero, sig_child, |
748a9306 |
1939 | &child_chan)); |
a0d0e21e |
1940 | #ifdef ARGPROC_DEBUG |
1941 | fprintf(stderr, "Subprocess's Pid = %08X\n", pid); |
1942 | #endif |
1943 | sys$dclexh(&exit_block); |
1944 | if (NULL == freopen(mbxname, "wb", stdout)) |
1945 | { |
748a9306 |
1946 | fprintf(stderr,"Can't open output pipe (name %s)",mbxname); |
a0d0e21e |
1947 | } |
1948 | } |
1949 | |
1950 | static int background_process(int argc, char **argv) |
1951 | { |
1952 | char command[2048] = "$"; |
1953 | $DESCRIPTOR(value, ""); |
1954 | static $DESCRIPTOR(cmd, "BACKGROUND$COMMAND"); |
1955 | static $DESCRIPTOR(null, "NLA0:"); |
1956 | static $DESCRIPTOR(pidsymbol, "SHELL_BACKGROUND_PID"); |
1957 | char pidstring[80]; |
1958 | $DESCRIPTOR(pidstr, ""); |
1959 | int pid; |
748a9306 |
1960 | unsigned long int flags = 17, one = 1, retsts; |
a0d0e21e |
1961 | |
1962 | strcat(command, argv[0]); |
1963 | while (--argc) |
1964 | { |
1965 | strcat(command, " \""); |
1966 | strcat(command, *(++argv)); |
1967 | strcat(command, "\""); |
1968 | } |
1969 | value.dsc$a_pointer = command; |
1970 | value.dsc$w_length = strlen(value.dsc$a_pointer); |
748a9306 |
1971 | _ckvmssts(lib$set_symbol(&cmd, &value)); |
1972 | retsts = lib$spawn(&cmd, &null, 0, &flags, 0, &pid); |
1973 | if (retsts == 0x38250) { /* DCL-W-NOTIFY - We must be BATCH, so retry */ |
1974 | _ckvmssts(lib$spawn(&cmd, &null, 0, &one, 0, &pid)); |
1975 | } |
1976 | else { |
1977 | _ckvmssts(retsts); |
1978 | } |
a0d0e21e |
1979 | #ifdef ARGPROC_DEBUG |
1980 | fprintf(stderr, "%s\n", command); |
1981 | #endif |
1982 | sprintf(pidstring, "%08X", pid); |
1983 | fprintf(stderr, "%s\n", pidstring); |
1984 | pidstr.dsc$a_pointer = pidstring; |
1985 | pidstr.dsc$w_length = strlen(pidstr.dsc$a_pointer); |
1986 | lib$set_symbol(&pidsymbol, &pidstr); |
1987 | return(SS$_NORMAL); |
1988 | } |
1989 | /*}}}*/ |
1990 | /***** End of code taken from Mark Pizzolato's argproc.c package *****/ |
1991 | |
a0d0e21e |
1992 | /* trim_unixpath() |
1993 | * Trim Unix-style prefix off filespec, so it looks like what a shell |
1994 | * glob expansion would return (i.e. from specified prefix on, not |
1995 | * full path). Note that returned filespec is Unix-style, regardless |
1996 | * of whether input filespec was VMS-style or Unix-style. |
1997 | * |
1998 | * Returns !=0 on success, 0 on failure. |
1999 | */ |
2000 | /*{{{int trim_unixpath(char *template, char *fspec)*/ |
2001 | int |
2002 | trim_unixpath(char *template, char *fspec) |
2003 | { |
2004 | char unixified[NAM$C_MAXRSS+1], *base, *cp1, *cp2; |
2005 | register int tmplen; |
2006 | |
2007 | if (strpbrk(fspec,"]>:") != NULL) { |
2008 | if (do_tounixspec(fspec,unixified,0) == NULL) return 0; |
2009 | else base = unixified; |
2010 | } |
2011 | else base = fspec; |
2012 | for (cp2 = base; *cp2; cp2++) ; /* Find end of filespec */ |
2013 | |
2014 | /* Find prefix to template consisting of path elements without wildcards */ |
2015 | if ((cp1 = strpbrk(template,"*%?")) == NULL) |
2016 | for (cp1 = template; *cp1; cp1++) ; |
2017 | else while (cp1 >= template && *cp1 != '/') cp1--; |
2018 | if (cp1 == template) return 1; /* Wildcard was up front - no prefix to clip */ |
2019 | tmplen = cp1 - template; |
2020 | |
2021 | /* Try to find template prefix on filespec */ |
2022 | if (!memcmp(base,template,tmplen)) return 1; /* Nothing before prefix - we're done */ |
2023 | for (; cp2 - base > tmplen; base++) { |
2024 | if (*base != '/') continue; |
2025 | if (!memcmp(base + 1,template,tmplen)) break; |
2026 | } |
2027 | if (cp2 - base == tmplen) return 0; /* Not there - not good */ |
2028 | base++; /* Move past leading '/' */ |
2029 | /* Copy down remaining portion of filespec, including trailing NUL */ |
2030 | memmove(fspec,base,cp2 - base + 1); |
2031 | return 1; |
2032 | |
2033 | } /* end of trim_unixpath() */ |
2034 | /*}}}*/ |
2035 | |
a0d0e21e |
2036 | |
2037 | /* |
2038 | * VMS readdir() routines. |
2039 | * Written by Rich $alz, <rsalz@bbn.com> in August, 1990. |
2040 | * This code has no copyright. |
2041 | * |
2042 | * 21-Jul-1994 Charles Bailey bailey@genetics.upenn.edu |
2043 | * Minor modifications to original routines. |
2044 | */ |
2045 | |
2046 | /* Number of elements in vms_versions array */ |
2047 | #define VERSIZE(e) (sizeof e->vms_versions / sizeof e->vms_versions[0]) |
2048 | |
2049 | /* |
2050 | * Open a directory, return a handle for later use. |
2051 | */ |
2052 | /*{{{ DIR *opendir(char*name) */ |
2053 | DIR * |
2054 | opendir(char *name) |
2055 | { |
2056 | DIR *dd; |
2057 | char dir[NAM$C_MAXRSS+1]; |
2058 | |
2059 | /* Get memory for the handle, and the pattern. */ |
2060 | New(7006,dd,1,DIR); |
2061 | if (do_tovmspath(name,dir,0) == NULL) { |
2062 | Safefree((char *)dd); |
2063 | return(NULL); |
2064 | } |
2065 | New(7007,dd->pattern,strlen(dir)+sizeof "*.*" + 1,char); |
2066 | |
2067 | /* Fill in the fields; mainly playing with the descriptor. */ |
2068 | (void)sprintf(dd->pattern, "%s*.*",dir); |
2069 | dd->context = 0; |
2070 | dd->count = 0; |
2071 | dd->vms_wantversions = 0; |
2072 | dd->pat.dsc$a_pointer = dd->pattern; |
2073 | dd->pat.dsc$w_length = strlen(dd->pattern); |
2074 | dd->pat.dsc$b_dtype = DSC$K_DTYPE_T; |
2075 | dd->pat.dsc$b_class = DSC$K_CLASS_S; |
2076 | |
2077 | return dd; |
2078 | } /* end of opendir() */ |
2079 | /*}}}*/ |
2080 | |
2081 | /* |
2082 | * Set the flag to indicate we want versions or not. |
2083 | */ |
2084 | /*{{{ void vmsreaddirversions(DIR *dd, int flag)*/ |
2085 | void |
2086 | vmsreaddirversions(DIR *dd, int flag) |
2087 | { |
2088 | dd->vms_wantversions = flag; |
2089 | } |
2090 | /*}}}*/ |
2091 | |
2092 | /* |
2093 | * Free up an opened directory. |
2094 | */ |
2095 | /*{{{ void closedir(DIR *dd)*/ |
2096 | void |
2097 | closedir(DIR *dd) |
2098 | { |
2099 | (void)lib$find_file_end(&dd->context); |
2100 | Safefree(dd->pattern); |
2101 | Safefree((char *)dd); |
2102 | } |
2103 | /*}}}*/ |
2104 | |
2105 | /* |
2106 | * Collect all the version numbers for the current file. |
2107 | */ |
2108 | static void |
2109 | collectversions(dd) |
2110 | DIR *dd; |
2111 | { |
2112 | struct dsc$descriptor_s pat; |
2113 | struct dsc$descriptor_s res; |
2114 | struct dirent *e; |
2115 | char *p, *text, buff[sizeof dd->entry.d_name]; |
2116 | int i; |
2117 | unsigned long context, tmpsts; |
2118 | |
2119 | /* Convenient shorthand. */ |
2120 | e = &dd->entry; |
2121 | |
2122 | /* Add the version wildcard, ignoring the "*.*" put on before */ |
2123 | i = strlen(dd->pattern); |
2124 | New(7008,text,i + e->d_namlen + 3,char); |
2125 | (void)strcpy(text, dd->pattern); |
2126 | (void)sprintf(&text[i - 3], "%s;*", e->d_name); |
2127 | |
2128 | /* Set up the pattern descriptor. */ |
2129 | pat.dsc$a_pointer = text; |
2130 | pat.dsc$w_length = i + e->d_namlen - 1; |
2131 | pat.dsc$b_dtype = DSC$K_DTYPE_T; |
2132 | pat.dsc$b_class = DSC$K_CLASS_S; |
2133 | |
2134 | /* Set up result descriptor. */ |
2135 | res.dsc$a_pointer = buff; |
2136 | res.dsc$w_length = sizeof buff - 2; |
2137 | res.dsc$b_dtype = DSC$K_DTYPE_T; |
2138 | res.dsc$b_class = DSC$K_CLASS_S; |
2139 | |
2140 | /* Read files, collecting versions. */ |
2141 | for (context = 0, e->vms_verscount = 0; |
2142 | e->vms_verscount < VERSIZE(e); |
2143 | e->vms_verscount++) { |
2144 | tmpsts = lib$find_file(&pat, &res, &context); |
2145 | if (tmpsts == RMS$_NMF || context == 0) break; |
748a9306 |
2146 | _ckvmssts(tmpsts); |
a0d0e21e |
2147 | buff[sizeof buff - 1] = '\0'; |
748a9306 |
2148 | if ((p = strchr(buff, ';'))) |
a0d0e21e |
2149 | e->vms_versions[e->vms_verscount] = atoi(p + 1); |
2150 | else |
2151 | e->vms_versions[e->vms_verscount] = -1; |
2152 | } |
2153 | |
748a9306 |
2154 | _ckvmssts(lib$find_file_end(&context)); |
a0d0e21e |
2155 | Safefree(text); |
2156 | |
2157 | } /* end of collectversions() */ |
2158 | |
2159 | /* |
2160 | * Read the next entry from the directory. |
2161 | */ |
2162 | /*{{{ struct dirent *readdir(DIR *dd)*/ |
2163 | struct dirent * |
2164 | readdir(DIR *dd) |
2165 | { |
2166 | struct dsc$descriptor_s res; |
2167 | char *p, buff[sizeof dd->entry.d_name]; |
a0d0e21e |
2168 | unsigned long int tmpsts; |
2169 | |
2170 | /* Set up result descriptor, and get next file. */ |
2171 | res.dsc$a_pointer = buff; |
2172 | res.dsc$w_length = sizeof buff - 2; |
2173 | res.dsc$b_dtype = DSC$K_DTYPE_T; |
2174 | res.dsc$b_class = DSC$K_CLASS_S; |
a0d0e21e |
2175 | tmpsts = lib$find_file(&dd->pat, &res, &dd->context); |
4633a7c4 |
2176 | if ( tmpsts == RMS$_NMF || dd->context == 0) return NULL; /* None left. */ |
2177 | if (!(tmpsts & 1)) { |
2178 | set_vaxc_errno(tmpsts); |
2179 | switch (tmpsts) { |
2180 | case RMS$_PRV: |
c07a80fd |
2181 | set_errno(EACCES); break; |
4633a7c4 |
2182 | case RMS$_DEV: |
c07a80fd |
2183 | set_errno(ENODEV); break; |
4633a7c4 |
2184 | case RMS$_DIR: |
4633a7c4 |
2185 | case RMS$_FNF: |
c07a80fd |
2186 | set_errno(ENOENT); break; |
4633a7c4 |
2187 | default: |
2188 | set_errno(EVMSERR); |
2189 | } |
2190 | return NULL; |
2191 | } |
2192 | dd->count++; |
a0d0e21e |
2193 | /* Force the buffer to end with a NUL, and downcase name to match C convention. */ |
2194 | buff[sizeof buff - 1] = '\0'; |
2195 | for (p = buff; !isspace(*p); p++) *p = _tolower(*p); |
2196 | *p = '\0'; |
2197 | |
2198 | /* Skip any directory component and just copy the name. */ |
748a9306 |
2199 | if ((p = strchr(buff, ']'))) (void)strcpy(dd->entry.d_name, p + 1); |
a0d0e21e |
2200 | else (void)strcpy(dd->entry.d_name, buff); |
2201 | |
2202 | /* Clobber the version. */ |
748a9306 |
2203 | if ((p = strchr(dd->entry.d_name, ';'))) *p = '\0'; |
a0d0e21e |
2204 | |
2205 | dd->entry.d_namlen = strlen(dd->entry.d_name); |
2206 | dd->entry.vms_verscount = 0; |
2207 | if (dd->vms_wantversions) collectversions(dd); |
2208 | return &dd->entry; |
2209 | |
2210 | } /* end of readdir() */ |
2211 | /*}}}*/ |
2212 | |
2213 | /* |
2214 | * Return something that can be used in a seekdir later. |
2215 | */ |
2216 | /*{{{ long telldir(DIR *dd)*/ |
2217 | long |
2218 | telldir(DIR *dd) |
2219 | { |
2220 | return dd->count; |
2221 | } |
2222 | /*}}}*/ |
2223 | |
2224 | /* |
2225 | * Return to a spot where we used to be. Brute force. |
2226 | */ |
2227 | /*{{{ void seekdir(DIR *dd,long count)*/ |
2228 | void |
2229 | seekdir(DIR *dd, long count) |
2230 | { |
2231 | int vms_wantversions; |
a0d0e21e |
2232 | |
2233 | /* If we haven't done anything yet... */ |
2234 | if (dd->count == 0) |
2235 | return; |
2236 | |
2237 | /* Remember some state, and clear it. */ |
2238 | vms_wantversions = dd->vms_wantversions; |
2239 | dd->vms_wantversions = 0; |
748a9306 |
2240 | _ckvmssts(lib$find_file_end(&dd->context)); |
a0d0e21e |
2241 | dd->context = 0; |
2242 | |
2243 | /* The increment is in readdir(). */ |
2244 | for (dd->count = 0; dd->count < count; ) |
2245 | (void)readdir(dd); |
2246 | |
2247 | dd->vms_wantversions = vms_wantversions; |
2248 | |
2249 | } /* end of seekdir() */ |
2250 | /*}}}*/ |
2251 | |
2252 | /* VMS subprocess management |
2253 | * |
2254 | * my_vfork() - just a vfork(), after setting a flag to record that |
2255 | * the current script is trying a Unix-style fork/exec. |
2256 | * |
2257 | * vms_do_aexec() and vms_do_exec() are called in response to the |
2258 | * perl 'exec' function. If this follows a vfork call, then they |
2259 | * call out the the regular perl routines in doio.c which do an |
2260 | * execvp (for those who really want to try this under VMS). |
2261 | * Otherwise, they do exactly what the perl docs say exec should |
2262 | * do - terminate the current script and invoke a new command |
2263 | * (See below for notes on command syntax.) |
2264 | * |
2265 | * do_aspawn() and do_spawn() implement the VMS side of the perl |
2266 | * 'system' function. |
2267 | * |
2268 | * Note on command arguments to perl 'exec' and 'system': When handled |
2269 | * in 'VMSish fashion' (i.e. not after a call to vfork) The args |
2270 | * are concatenated to form a DCL command string. If the first arg |
2271 | * begins with '$' (i.e. the perl script had "\$ Type" or some such), |
2272 | * the the command string is hrnded off to DCL directly. Otherwise, |
2273 | * the first token of the command is taken as the filespec of an image |
2274 | * to run. The filespec is expanded using a default type of '.EXE' and |
2275 | * the process defaults for device, directory, etc., and the resultant |
2276 | * filespec is invoked using the DCL verb 'MCR', and passed the rest of |
2277 | * the command string as parameters. This is perhaps a bit compicated, |
2278 | * but I hope it will form a happy medium between what VMS folks expect |
2279 | * from lib$spawn and what Unix folks expect from exec. |
2280 | */ |
2281 | |
2282 | static int vfork_called; |
2283 | |
2284 | /*{{{int my_vfork()*/ |
2285 | int |
2286 | my_vfork() |
2287 | { |
748a9306 |
2288 | vfork_called++; |
a0d0e21e |
2289 | return vfork(); |
2290 | } |
2291 | /*}}}*/ |
2292 | |
4633a7c4 |
2293 | |
2294 | static struct dsc$descriptor_s VMScmd = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,Nullch}; |
2295 | |
a0d0e21e |
2296 | static void |
4633a7c4 |
2297 | vms_execfree() { |
2298 | if (Cmd) { |
e518068a |
2299 | Safefree(Cmd); |
4633a7c4 |
2300 | Cmd = Nullch; |
2301 | } |
2302 | if (VMScmd.dsc$a_pointer) { |
2303 | Safefree(VMScmd.dsc$a_pointer); |
2304 | VMScmd.dsc$w_length = 0; |
2305 | VMScmd.dsc$a_pointer = Nullch; |
2306 | } |
2307 | } |
2308 | |
2309 | static char * |
2310 | setup_argstr(SV *really, SV **mark, SV **sp) |
a0d0e21e |
2311 | { |
4633a7c4 |
2312 | char *junk, *tmps = Nullch; |
a0d0e21e |
2313 | register size_t cmdlen = 0; |
2314 | size_t rlen; |
2315 | register SV **idx; |
2316 | |
2317 | idx = mark; |
4633a7c4 |
2318 | if (really) { |
2319 | tmps = SvPV(really,rlen); |
2320 | if (*tmps) { |
2321 | cmdlen += rlen + 1; |
2322 | idx++; |
2323 | } |
a0d0e21e |
2324 | } |
2325 | |
2326 | for (idx++; idx <= sp; idx++) { |
2327 | if (*idx) { |
2328 | junk = SvPVx(*idx,rlen); |
2329 | cmdlen += rlen ? rlen + 1 : 0; |
2330 | } |
2331 | } |
e518068a |
2332 | New(401,Cmd,cmdlen+1,char); |
a0d0e21e |
2333 | |
4633a7c4 |
2334 | if (tmps && *tmps) { |
2335 | strcpy(Cmd,tmps); |
a0d0e21e |
2336 | mark++; |
2337 | } |
4633a7c4 |
2338 | else *Cmd = '\0'; |
a0d0e21e |
2339 | while (++mark <= sp) { |
2340 | if (*mark) { |
4633a7c4 |
2341 | strcat(Cmd," "); |
2342 | strcat(Cmd,SvPVx(*mark,na)); |
a0d0e21e |
2343 | } |
2344 | } |
4633a7c4 |
2345 | return Cmd; |
a0d0e21e |
2346 | |
2347 | } /* end of setup_argstr() */ |
2348 | |
4633a7c4 |
2349 | |
a0d0e21e |
2350 | static unsigned long int |
4633a7c4 |
2351 | setup_cmddsc(char *cmd, int check_img) |
a0d0e21e |
2352 | { |
2353 | char resspec[NAM$C_MAXRSS+1]; |
2354 | $DESCRIPTOR(defdsc,".EXE"); |
2355 | $DESCRIPTOR(resdsc,resspec); |
2356 | struct dsc$descriptor_s imgdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
2357 | unsigned long int cxt = 0, flags = 1, retsts; |
2358 | register char *s, *rest, *cp; |
2359 | register int isdcl = 0; |
2360 | |
2361 | s = cmd; |
2362 | while (*s && isspace(*s)) s++; |
2363 | if (check_img) { |
2364 | if (*s == '$') { /* Check whether this is a DCL command: leading $ and */ |
2365 | isdcl = 1; /* no dev/dir separators (i.e. not a foreign command) */ |
2366 | for (cp = s; *cp && *cp != '/' && !isspace(*cp); cp++) { |
2367 | if (*cp == ':' || *cp == '[' || *cp == '<') { |
2368 | isdcl = 0; |
2369 | break; |
2370 | } |
2371 | } |
2372 | } |
2373 | } |
2374 | else isdcl = 1; |
2375 | if (isdcl) { /* It's a DCL command, just do it. */ |
4633a7c4 |
2376 | VMScmd.dsc$w_length = strlen(cmd); |
e518068a |
2377 | if (cmd == Cmd) { |
2378 | VMScmd.dsc$a_pointer = Cmd; |
2379 | Cmd = Nullch; /* Don't try to free twice in vms_execfree() */ |
2380 | } |
2381 | else VMScmd.dsc$a_pointer = savepvn(cmd,VMScmd.dsc$w_length); |
a0d0e21e |
2382 | } |
2383 | else { /* assume first token is an image spec */ |
2384 | cmd = s; |
2385 | while (*s && !isspace(*s)) s++; |
2386 | rest = *s ? s : 0; |
2387 | imgdsc.dsc$a_pointer = cmd; |
2388 | imgdsc.dsc$w_length = s - cmd; |
2389 | retsts = lib$find_file(&imgdsc,&resdsc,&cxt,&defdsc,0,0,&flags); |
4633a7c4 |
2390 | if (!(retsts & 1)) { |
2391 | /* just hand off status values likely to be due to user error */ |
2392 | if (retsts == RMS$_FNF || retsts == RMS$_DNF || |
2393 | retsts == RMS$_DEV || retsts == RMS$_DIR || retsts == RMS$_SYN || |
2394 | (retsts & STS$M_CODE) == (SHR$_NOWILD & STS$M_CODE)) return retsts; |
2395 | else { _ckvmssts(retsts); } |
2396 | } |
a0d0e21e |
2397 | else { |
748a9306 |
2398 | _ckvmssts(lib$find_file_end(&cxt)); |
a0d0e21e |
2399 | s = resspec; |
2400 | while (*s && !isspace(*s)) s++; |
2401 | *s = '\0'; |
e518068a |
2402 | New(402,VMScmd.dsc$a_pointer,7 + s - resspec + (rest ? strlen(rest) : 0),char); |
4633a7c4 |
2403 | strcpy(VMScmd.dsc$a_pointer,"$ MCR "); |
2404 | strcat(VMScmd.dsc$a_pointer,resspec); |
2405 | if (rest) strcat(VMScmd.dsc$a_pointer,rest); |
2406 | VMScmd.dsc$w_length = strlen(VMScmd.dsc$a_pointer); |
a0d0e21e |
2407 | } |
2408 | } |
2409 | |
2410 | return SS$_NORMAL; |
2411 | } /* end of setup_cmddsc() */ |
2412 | |
2413 | /* {{{ bool vms_do_aexec(SV *really,SV **mark,SV **sp) */ |
2414 | bool |
2415 | vms_do_aexec(SV *really,SV **mark,SV **sp) |
2416 | { |
a0d0e21e |
2417 | if (sp > mark) { |
2418 | if (vfork_called) { /* this follows a vfork - act Unixish */ |
748a9306 |
2419 | vfork_called--; |
2420 | if (vfork_called < 0) { |
2421 | warn("Internal inconsistency in tracking vforks"); |
2422 | vfork_called = 0; |
2423 | } |
2424 | else return do_aexec(really,mark,sp); |
a0d0e21e |
2425 | } |
4633a7c4 |
2426 | /* no vfork - act VMSish */ |
2427 | return vms_do_exec(setup_argstr(really,mark,sp)); |
748a9306 |
2428 | |
a0d0e21e |
2429 | } |
2430 | |
2431 | return FALSE; |
2432 | } /* end of vms_do_aexec() */ |
2433 | /*}}}*/ |
2434 | |
2435 | /* {{{bool vms_do_exec(char *cmd) */ |
2436 | bool |
2437 | vms_do_exec(char *cmd) |
2438 | { |
2439 | |
2440 | if (vfork_called) { /* this follows a vfork - act Unixish */ |
748a9306 |
2441 | vfork_called--; |
2442 | if (vfork_called < 0) { |
2443 | warn("Internal inconsistency in tracking vforks"); |
2444 | vfork_called = 0; |
2445 | } |
2446 | else return do_exec(cmd); |
a0d0e21e |
2447 | } |
748a9306 |
2448 | |
2449 | { /* no vfork - act VMSish */ |
748a9306 |
2450 | unsigned long int retsts; |
a0d0e21e |
2451 | |
4633a7c4 |
2452 | if ((retsts = setup_cmddsc(cmd,1)) & 1) |
2453 | retsts = lib$do_command(&VMScmd); |
a0d0e21e |
2454 | |
748a9306 |
2455 | set_errno(EVMSERR); |
2456 | set_vaxc_errno(retsts); |
a0d0e21e |
2457 | if (dowarn) |
4633a7c4 |
2458 | warn("Can't exec \"%s\": %s", VMScmd.dsc$a_pointer, Strerror(errno)); |
2459 | vms_execfree(); |
a0d0e21e |
2460 | } |
2461 | |
2462 | return FALSE; |
2463 | |
2464 | } /* end of vms_do_exec() */ |
2465 | /*}}}*/ |
2466 | |
2467 | unsigned long int do_spawn(char *); |
2468 | |
2469 | /* {{{ unsigned long int do_aspawn(SV *really,SV **mark,SV **sp) */ |
2470 | unsigned long int |
2471 | do_aspawn(SV *really,SV **mark,SV **sp) |
2472 | { |
4633a7c4 |
2473 | if (sp > mark) return do_spawn(setup_argstr(really,mark,sp)); |
a0d0e21e |
2474 | |
2475 | return SS$_ABORT; |
2476 | } /* end of do_aspawn() */ |
2477 | /*}}}*/ |
2478 | |
2479 | /* {{{unsigned long int do_spawn(char *cmd) */ |
2480 | unsigned long int |
2481 | do_spawn(char *cmd) |
2482 | { |
4633a7c4 |
2483 | unsigned long int substs, hadcmd = 1; |
a0d0e21e |
2484 | |
748a9306 |
2485 | if (!cmd || !*cmd) { |
4633a7c4 |
2486 | hadcmd = 0; |
2487 | _ckvmssts(lib$spawn(0,0,0,0,0,0,&substs,0,0,0,0,0,0)); |
748a9306 |
2488 | } |
4633a7c4 |
2489 | else if ((substs = setup_cmddsc(cmd,0)) & 1) { |
2490 | _ckvmssts(lib$spawn(&VMScmd,0,0,0,0,0,&substs,0,0,0,0,0,0)); |
748a9306 |
2491 | } |
a0d0e21e |
2492 | |
2493 | if (!(substs&1)) { |
748a9306 |
2494 | set_errno(EVMSERR); |
2495 | set_vaxc_errno(substs); |
a0d0e21e |
2496 | if (dowarn) |
748a9306 |
2497 | warn("Can't exec \"%s\": %s", |
4633a7c4 |
2498 | hadcmd ? VMScmd.dsc$a_pointer : "", Strerror(errno)); |
a0d0e21e |
2499 | } |
4633a7c4 |
2500 | vms_execfree(); |
a0d0e21e |
2501 | return substs; |
2502 | |
2503 | } /* end of do_spawn() */ |
2504 | /*}}}*/ |
2505 | |
2506 | /* |
2507 | * A simple fwrite replacement which outputs itmsz*nitm chars without |
2508 | * introducing record boundaries every itmsz chars. |
2509 | */ |
2510 | /*{{{ int my_fwrite(void *src, size_t itmsz, size_t nitm, FILE *dest)*/ |
2511 | int |
2512 | my_fwrite(void *src, size_t itmsz, size_t nitm, FILE *dest) |
2513 | { |
2514 | register char *cp, *end; |
2515 | |
2516 | end = (char *)src + itmsz * nitm; |
2517 | |
2518 | while ((char *)src <= end) { |
2519 | for (cp = src; cp <= end; cp++) if (!*cp) break; |
2520 | if (fputs(src,dest) == EOF) return EOF; |
2521 | if (cp < end) |
2522 | if (fputc('\0',dest) == EOF) return EOF; |
2523 | src = cp + 1; |
2524 | } |
2525 | |
2526 | return 1; |
2527 | |
2528 | } /* end of my_fwrite() */ |
2529 | /*}}}*/ |
2530 | |
748a9306 |
2531 | /* |
2532 | * Here are replacements for the following Unix routines in the VMS environment: |
2533 | * getpwuid Get information for a particular UIC or UID |
2534 | * getpwnam Get information for a named user |
2535 | * getpwent Get information for each user in the rights database |
2536 | * setpwent Reset search to the start of the rights database |
2537 | * endpwent Finish searching for users in the rights database |
2538 | * |
2539 | * getpwuid, getpwnam, and getpwent return a pointer to the passwd structure |
2540 | * (defined in pwd.h), which contains the following fields:- |
2541 | * struct passwd { |
2542 | * char *pw_name; Username (in lower case) |
2543 | * char *pw_passwd; Hashed password |
2544 | * unsigned int pw_uid; UIC |
2545 | * unsigned int pw_gid; UIC group number |
2546 | * char *pw_unixdir; Default device/directory (VMS-style) |
2547 | * char *pw_gecos; Owner name |
2548 | * char *pw_dir; Default device/directory (Unix-style) |
2549 | * char *pw_shell; Default CLI name (eg. DCL) |
2550 | * }; |
2551 | * If the specified user does not exist, getpwuid and getpwnam return NULL. |
2552 | * |
2553 | * pw_uid is the full UIC (eg. what's returned by stat() in st_uid). |
2554 | * not the UIC member number (eg. what's returned by getuid()), |
2555 | * getpwuid() can accept either as input (if uid is specified, the caller's |
2556 | * UIC group is used), though it won't recognise gid=0. |
2557 | * |
2558 | * Note that in VMS it is necessary to have GRPPRV or SYSPRV to return |
2559 | * information about other users in your group or in other groups, respectively. |
2560 | * If the required privilege is not available, then these routines fill only |
2561 | * the pw_name, pw_uid, and pw_gid fields (the others point to an empty |
2562 | * string). |
2563 | * |
2564 | * By Tim Adye (T.J.Adye@rl.ac.uk), 10th February 1995. |
2565 | */ |
2566 | |
2567 | /* sizes of various UAF record fields */ |
2568 | #define UAI$S_USERNAME 12 |
2569 | #define UAI$S_IDENT 31 |
2570 | #define UAI$S_OWNER 31 |
2571 | #define UAI$S_DEFDEV 31 |
2572 | #define UAI$S_DEFDIR 63 |
2573 | #define UAI$S_DEFCLI 31 |
2574 | #define UAI$S_PWD 8 |
2575 | |
2576 | #define valid_uic(uic) ((uic).uic$v_format == UIC$K_UIC_FORMAT && \ |
2577 | (uic).uic$v_member != UIC$K_WILD_MEMBER && \ |
2578 | (uic).uic$v_group != UIC$K_WILD_GROUP) |
2579 | |
4633a7c4 |
2580 | static char __empty[]= ""; |
2581 | static struct passwd __passwd_empty= |
748a9306 |
2582 | {(char *) __empty, (char *) __empty, 0, 0, |
2583 | (char *) __empty, (char *) __empty, (char *) __empty, (char *) __empty}; |
2584 | static int contxt= 0; |
2585 | static struct passwd __pwdcache; |
2586 | static char __pw_namecache[UAI$S_IDENT+1]; |
2587 | |
2588 | static char *_mystrtolower(char *str) |
2589 | { |
2590 | if (str) for (; *str; ++str) *str= tolower(*str); |
2591 | return str; |
2592 | } |
2593 | |
2594 | /* |
2595 | * This routine does most of the work extracting the user information. |
2596 | */ |
2597 | static int fillpasswd (const char *name, struct passwd *pwd) |
a0d0e21e |
2598 | { |
748a9306 |
2599 | static struct { |
2600 | unsigned char length; |
2601 | char pw_gecos[UAI$S_OWNER+1]; |
2602 | } owner; |
2603 | static union uicdef uic; |
2604 | static struct { |
2605 | unsigned char length; |
2606 | char pw_dir[UAI$S_DEFDEV+UAI$S_DEFDIR+1]; |
2607 | } defdev; |
2608 | static struct { |
2609 | unsigned char length; |
2610 | char unixdir[UAI$_DEFDEV+UAI$S_DEFDIR+1]; |
2611 | } defdir; |
2612 | static struct { |
2613 | unsigned char length; |
2614 | char pw_shell[UAI$S_DEFCLI+1]; |
2615 | } defcli; |
2616 | static char pw_passwd[UAI$S_PWD+1]; |
2617 | |
2618 | static unsigned short lowner, luic, ldefdev, ldefdir, ldefcli, lpwd; |
2619 | struct dsc$descriptor_s name_desc; |
c07a80fd |
2620 | unsigned long int sts; |
748a9306 |
2621 | |
4633a7c4 |
2622 | static struct itmlst_3 itmlst[]= { |
748a9306 |
2623 | {UAI$S_OWNER+1, UAI$_OWNER, &owner, &lowner}, |
2624 | {sizeof(uic), UAI$_UIC, &uic, &luic}, |
2625 | {UAI$S_DEFDEV+1, UAI$_DEFDEV, &defdev, &ldefdev}, |
2626 | {UAI$S_DEFDIR+1, UAI$_DEFDIR, &defdir, &ldefdir}, |
2627 | {UAI$S_DEFCLI+1, UAI$_DEFCLI, &defcli, &ldefcli}, |
2628 | {UAI$S_PWD, UAI$_PWD, pw_passwd, &lpwd}, |
2629 | {0, 0, NULL, NULL}}; |
2630 | |
2631 | name_desc.dsc$w_length= strlen(name); |
2632 | name_desc.dsc$b_dtype= DSC$K_DTYPE_T; |
2633 | name_desc.dsc$b_class= DSC$K_CLASS_S; |
2634 | name_desc.dsc$a_pointer= (char *) name; |
2635 | |
2636 | /* Note that sys$getuai returns many fields as counted strings. */ |
c07a80fd |
2637 | sts= sys$getuai(0, 0, &name_desc, &itmlst, 0, 0, 0); |
2638 | if (sts == SS$_NOSYSPRV || sts == SS$_NOGRPPRV || sts == RMS$_RNF) { |
2639 | set_vaxc_errno(sts); set_errno(sts == RMS$_RNF ? EINVAL : EACCES); |
2640 | } |
2641 | else { _ckvmssts(sts); } |
2642 | if (!(sts & 1)) return 0; /* out here in case _ckvmssts() doesn't abort */ |
748a9306 |
2643 | |
2644 | if ((int) owner.length < lowner) lowner= (int) owner.length; |
2645 | if ((int) defdev.length < ldefdev) ldefdev= (int) defdev.length; |
2646 | if ((int) defdir.length < ldefdir) ldefdir= (int) defdir.length; |
2647 | if ((int) defcli.length < ldefcli) ldefcli= (int) defcli.length; |
2648 | memcpy(&defdev.pw_dir[ldefdev], &defdir.unixdir[0], ldefdir); |
2649 | owner.pw_gecos[lowner]= '\0'; |
2650 | defdev.pw_dir[ldefdev+ldefdir]= '\0'; |
2651 | defcli.pw_shell[ldefcli]= '\0'; |
2652 | if (valid_uic(uic)) { |
2653 | pwd->pw_uid= uic.uic$l_uic; |
2654 | pwd->pw_gid= uic.uic$v_group; |
2655 | } |
2656 | else |
2657 | warn("getpwnam returned invalid UIC %#o for user \"%s\""); |
2658 | pwd->pw_passwd= pw_passwd; |
2659 | pwd->pw_gecos= owner.pw_gecos; |
2660 | pwd->pw_dir= defdev.pw_dir; |
2661 | pwd->pw_unixdir= do_tounixpath(defdev.pw_dir, defdir.unixdir,1); |
2662 | pwd->pw_shell= defcli.pw_shell; |
2663 | if (pwd->pw_unixdir && pwd->pw_unixdir[0]) { |
2664 | int ldir; |
2665 | ldir= strlen(pwd->pw_unixdir) - 1; |
2666 | if (pwd->pw_unixdir[ldir]=='/') pwd->pw_unixdir[ldir]= '\0'; |
2667 | } |
2668 | else |
2669 | strcpy(pwd->pw_unixdir, pwd->pw_dir); |
2670 | _mystrtolower(pwd->pw_unixdir); |
c07a80fd |
2671 | return 1; |
a0d0e21e |
2672 | } |
748a9306 |
2673 | |
2674 | /* |
2675 | * Get information for a named user. |
2676 | */ |
2677 | /*{{{struct passwd *getpwnam(char *name)*/ |
2678 | struct passwd *my_getpwnam(char *name) |
2679 | { |
2680 | struct dsc$descriptor_s name_desc; |
2681 | union uicdef uic; |
2682 | unsigned long int status, stat; |
2683 | |
2684 | __pwdcache = __passwd_empty; |
c07a80fd |
2685 | if (!fillpasswd(name, &__pwdcache)) { |
748a9306 |
2686 | /* We still may be able to determine pw_uid and pw_gid */ |
2687 | name_desc.dsc$w_length= strlen(name); |
2688 | name_desc.dsc$b_dtype= DSC$K_DTYPE_T; |
2689 | name_desc.dsc$b_class= DSC$K_CLASS_S; |
2690 | name_desc.dsc$a_pointer= (char *) name; |
2691 | if ((stat = sys$asctoid(&name_desc, &uic, 0)) == SS$_NORMAL) { |
2692 | __pwdcache.pw_uid= uic.uic$l_uic; |
2693 | __pwdcache.pw_gid= uic.uic$v_group; |
2694 | } |
c07a80fd |
2695 | else { |
2696 | if (stat == SS$_NOSUCHID || stat == SS$_IVIDENT || stat == RMS$_PRV) { |
2697 | set_vaxc_errno(stat); |
2698 | set_errno(stat == RMS$_PRV ? EACCES : EINVAL); |
2699 | return NULL; |
2700 | } |
2701 | else { _ckvmssts(stat); } |
2702 | } |
748a9306 |
2703 | } |
748a9306 |
2704 | strncpy(__pw_namecache, name, sizeof(__pw_namecache)); |
2705 | __pw_namecache[sizeof __pw_namecache - 1] = '\0'; |
2706 | __pwdcache.pw_name= __pw_namecache; |
2707 | return &__pwdcache; |
2708 | } /* end of my_getpwnam() */ |
a0d0e21e |
2709 | /*}}}*/ |
2710 | |
748a9306 |
2711 | /* |
2712 | * Get information for a particular UIC or UID. |
2713 | * Called by my_getpwent with uid=-1 to list all users. |
2714 | */ |
2715 | /*{{{struct passwd *my_getpwuid(Uid_t uid)*/ |
2716 | struct passwd *my_getpwuid(Uid_t uid) |
a0d0e21e |
2717 | { |
748a9306 |
2718 | const $DESCRIPTOR(name_desc,__pw_namecache); |
2719 | unsigned short lname; |
2720 | union uicdef uic; |
2721 | unsigned long int status; |
2722 | |
2723 | if (uid == (unsigned int) -1) { |
2724 | do { |
2725 | status = sys$idtoasc(-1, &lname, &name_desc, &uic, 0, &contxt); |
2726 | if (status == SS$_NOSUCHID || status == RMS$_PRV) { |
c07a80fd |
2727 | set_vaxc_errno(status); |
2728 | set_errno(status == RMS$_PRV ? EACCES : EINVAL); |
748a9306 |
2729 | my_endpwent(); |
2730 | return NULL; |
2731 | } |
2732 | else { _ckvmssts(status); } |
2733 | } while (!valid_uic (uic)); |
2734 | } |
2735 | else { |
2736 | uic.uic$l_uic= uid; |
c07a80fd |
2737 | if (!uic.uic$v_group) |
2738 | uic.uic$v_group= getgid(); |
748a9306 |
2739 | if (valid_uic(uic)) |
2740 | status = sys$idtoasc(uic.uic$l_uic, &lname, &name_desc, 0, 0, 0); |
2741 | else status = SS$_IVIDENT; |
c07a80fd |
2742 | if (status == SS$_IVIDENT || status == SS$_NOSUCHID || |
2743 | status == RMS$_PRV) { |
2744 | set_vaxc_errno(status); set_errno(status == RMS$_PRV ? EACCES : EINVAL); |
2745 | return NULL; |
2746 | } |
2747 | else { _ckvmssts(status); } |
748a9306 |
2748 | } |
2749 | __pw_namecache[lname]= '\0'; |
2750 | _mystrtolower(__pw_namecache); |
2751 | |
2752 | __pwdcache = __passwd_empty; |
2753 | __pwdcache.pw_name = __pw_namecache; |
2754 | |
2755 | /* Fill in the uid and gid in case fillpasswd can't (eg. no privilege). |
2756 | The identifier's value is usually the UIC, but it doesn't have to be, |
2757 | so if we can, we let fillpasswd update this. */ |
2758 | __pwdcache.pw_uid = uic.uic$l_uic; |
2759 | __pwdcache.pw_gid = uic.uic$v_group; |
2760 | |
c07a80fd |
2761 | fillpasswd(__pw_namecache, &__pwdcache); |
748a9306 |
2762 | return &__pwdcache; |
a0d0e21e |
2763 | |
748a9306 |
2764 | } /* end of my_getpwuid() */ |
2765 | /*}}}*/ |
2766 | |
2767 | /* |
2768 | * Get information for next user. |
2769 | */ |
2770 | /*{{{struct passwd *my_getpwent()*/ |
2771 | struct passwd *my_getpwent() |
2772 | { |
2773 | return (my_getpwuid((unsigned int) -1)); |
2774 | } |
2775 | /*}}}*/ |
a0d0e21e |
2776 | |
748a9306 |
2777 | /* |
2778 | * Finish searching rights database for users. |
2779 | */ |
2780 | /*{{{void my_endpwent()*/ |
2781 | void my_endpwent() |
2782 | { |
2783 | if (contxt) { |
2784 | _ckvmssts(sys$finish_rdb(&contxt)); |
2785 | contxt= 0; |
2786 | } |
a0d0e21e |
2787 | } |
2788 | /*}}}*/ |
748a9306 |
2789 | |
e518068a |
2790 | |
2791 | /* my_gmtime |
2792 | * If the CRTL has a real gmtime(), use it, else look for the logical |
2793 | * name SYS$TIMEZONE_DIFFERENTIAL used by the native UTC routines on |
2794 | * VMS >= 6.0. Can be manually defined under earlier versions of VMS |
2795 | * to translate to the number of seconds which must be added to UTC |
2796 | * to get to the local time of the system. |
2797 | * Contributed by Chuck Lane <lane@duphy4.physics.drexel.edu> |
2798 | */ |
2799 | |
2800 | /*{{{struct tm *my_gmtime(const time_t *time)*/ |
2801 | /* We #defined 'gmtime' as 'my_gmtime' in vmsish.h. #undef it here |
2802 | * so we can call the CRTL's routine to see if it works. |
2803 | */ |
2804 | #undef gmtime |
2805 | struct tm * |
2806 | my_gmtime(const time_t *time) |
2807 | { |
2808 | static int gmtime_emulation_type; |
2809 | static time_t utc_offset_secs; |
2810 | char *p; |
2811 | time_t when; |
2812 | |
2813 | if (gmtime_emulation_type == 0) { |
2814 | gmtime_emulation_type++; |
2815 | when = 300000000; |
2816 | if (gmtime(&when) == NULL) { /* CRTL gmtime() is just a stub */ |
2817 | gmtime_emulation_type++; |
2818 | if ((p = my_getenv("SYS$TIMEZONE_DIFFERENTIAL")) == NULL) |
2819 | gmtime_emulation_type++; |
2820 | else |
2821 | utc_offset_secs = (time_t) atol(p); |
2822 | } |
2823 | } |
2824 | |
2825 | switch (gmtime_emulation_type) { |
2826 | case 1: |
2827 | return gmtime(time); |
2828 | case 2: |
2829 | when = *time - utc_offset_secs; |
2830 | return localtime(&when); |
2831 | default: |
2832 | warn("gmtime not supported on this system"); |
2833 | return NULL; |
2834 | } |
2835 | } /* end of my_gmtime() */ |
2836 | /* Reset definition for later calls */ |
2837 | #define gmtime(t) my_gmtime(t) |
2838 | /*}}}*/ |
2839 | |
2840 | |
748a9306 |
2841 | /* |
2842 | * flex_stat, flex_fstat |
2843 | * basic stat, but gets it right when asked to stat |
2844 | * a Unix-style path ending in a directory name (e.g. dir1/dir2/dir3) |
2845 | */ |
2846 | |
2847 | /* encode_dev packs a VMS device name string into an integer to allow |
2848 | * simple comparisons. This can be used, for example, to check whether two |
2849 | * files are located on the same device, by comparing their encoded device |
2850 | * names. Even a string comparison would not do, because stat() reuses the |
2851 | * device name buffer for each call; so without encode_dev, it would be |
2852 | * necessary to save the buffer and use strcmp (this would mean a number of |
2853 | * changes to the standard Perl code, to say nothing of what a Perl script |
2854 | * would have to do. |
2855 | * |
2856 | * The device lock id, if it exists, should be unique (unless perhaps compared |
2857 | * with lock ids transferred from other nodes). We have a lock id if the disk is |
2858 | * mounted cluster-wide, which is when we tend to get long (host-qualified) |
2859 | * device names. Thus we use the lock id in preference, and only if that isn't |
2860 | * available, do we try to pack the device name into an integer (flagged by |
2861 | * the sign bit (LOCKID_MASK) being set). |
2862 | * |
e518068a |
2863 | * Note that encode_dev cannot guarantee an 1-to-1 correspondence twixt device |
748a9306 |
2864 | * name and its encoded form, but it seems very unlikely that we will find |
2865 | * two files on different disks that share the same encoded device names, |
2866 | * and even more remote that they will share the same file id (if the test |
2867 | * is to check for the same file). |
2868 | * |
2869 | * A better method might be to use sys$device_scan on the first call, and to |
2870 | * search for the device, returning an index into the cached array. |
2871 | * The number returned would be more intelligable. |
2872 | * This is probably not worth it, and anyway would take quite a bit longer |
2873 | * on the first call. |
2874 | */ |
2875 | #define LOCKID_MASK 0x80000000 /* Use 0 to force device name use only */ |
2876 | static dev_t encode_dev (const char *dev) |
2877 | { |
2878 | int i; |
2879 | unsigned long int f; |
2880 | dev_t enc; |
2881 | char c; |
2882 | const char *q; |
2883 | |
2884 | if (!dev || !dev[0]) return 0; |
2885 | |
2886 | #if LOCKID_MASK |
2887 | { |
2888 | struct dsc$descriptor_s dev_desc; |
2889 | unsigned long int status, lockid, item = DVI$_LOCKID; |
2890 | |
2891 | /* For cluster-mounted disks, the disk lock identifier is unique, so we |
2892 | can try that first. */ |
2893 | dev_desc.dsc$w_length = strlen (dev); |
2894 | dev_desc.dsc$b_dtype = DSC$K_DTYPE_T; |
2895 | dev_desc.dsc$b_class = DSC$K_CLASS_S; |
2896 | dev_desc.dsc$a_pointer = (char *) dev; |
2897 | _ckvmssts(lib$getdvi(&item, 0, &dev_desc, &lockid, 0, 0)); |
2898 | if (lockid) return (lockid & ~LOCKID_MASK); |
2899 | } |
a0d0e21e |
2900 | #endif |
748a9306 |
2901 | |
2902 | /* Otherwise we try to encode the device name */ |
2903 | enc = 0; |
2904 | f = 1; |
2905 | i = 0; |
2906 | for (q = dev + strlen(dev); q--; q >= dev) { |
2907 | if (isdigit (*q)) |
2908 | c= (*q) - '0'; |
2909 | else if (isalpha (toupper (*q))) |
2910 | c= toupper (*q) - 'A' + (char)10; |
2911 | else |
2912 | continue; /* Skip '$'s */ |
2913 | i++; |
2914 | if (i>6) break; /* 36^7 is too large to fit in an unsigned long int */ |
2915 | if (i>1) f *= 36; |
2916 | enc += f * (unsigned long int) c; |
2917 | } |
2918 | return (enc | LOCKID_MASK); /* May have already overflowed into bit 31 */ |
2919 | |
2920 | } /* end of encode_dev() */ |
2921 | |
2922 | static char namecache[NAM$C_MAXRSS+1]; |
2923 | |
2924 | static int |
2925 | is_null_device(name) |
2926 | const char *name; |
2927 | { |
2928 | /* The VMS null device is named "_NLA0:", usually abbreviated as "NL:". |
2929 | The underscore prefix, controller letter, and unit number are |
2930 | independently optional; for our purposes, the colon punctuation |
2931 | is not. The colon can be trailed by optional directory and/or |
2932 | filename, but two consecutive colons indicates a nodename rather |
2933 | than a device. [pr] */ |
2934 | if (*name == '_') ++name; |
2935 | if (tolower(*name++) != 'n') return 0; |
2936 | if (tolower(*name++) != 'l') return 0; |
2937 | if (tolower(*name) == 'a') ++name; |
2938 | if (*name == '0') ++name; |
2939 | return (*name++ == ':') && (*name != ':'); |
2940 | } |
2941 | |
2942 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
2943 | /* Do this via $Check_Access on VMS, since the CRTL stat() returns only a |
2944 | * subset of the applicable information. |
2945 | */ |
2946 | /*{{{I32 cando(I32 bit, I32 effective, struct stat *statbufp)*/ |
2947 | I32 |
2948 | cando(I32 bit, I32 effective, struct stat *statbufp) |
2949 | { |
2950 | if (statbufp == &statcache) |
2951 | return cando_by_name(bit,effective,namecache); |
2952 | else { |
2953 | char fname[NAM$C_MAXRSS+1]; |
2954 | unsigned long int retsts; |
2955 | struct dsc$descriptor_s devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}, |
2956 | namdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
2957 | |
2958 | /* If the struct mystat is stale, we're OOL; stat() overwrites the |
2959 | device name on successive calls */ |
2960 | devdsc.dsc$a_pointer = statbufp->st_devnam; |
2961 | devdsc.dsc$w_length = strlen(statbufp->st_devnam); |
2962 | namdsc.dsc$a_pointer = fname; |
2963 | namdsc.dsc$w_length = sizeof fname - 1; |
2964 | |
c07a80fd |
2965 | retsts = lib$fid_to_name(&devdsc,&(statbufp->st_ino),&namdsc, |
748a9306 |
2966 | &namdsc.dsc$w_length,0,0); |
2967 | if (retsts & 1) { |
2968 | fname[namdsc.dsc$w_length] = '\0'; |
2969 | return cando_by_name(bit,effective,fname); |
2970 | } |
2971 | else if (retsts == SS$_NOSUCHDEV || retsts == SS$_NOSUCHFILE) { |
2972 | warn("Can't get filespec - stale stat buffer?\n"); |
2973 | return FALSE; |
2974 | } |
2975 | _ckvmssts(retsts); |
2976 | return FALSE; /* Should never get to here */ |
2977 | } |
e518068a |
2978 | } /* end of cando() */ |
748a9306 |
2979 | /*}}}*/ |
2980 | |
c07a80fd |
2981 | |
748a9306 |
2982 | /*{{{I32 cando_by_name(I32 bit, I32 effective, char *fname)*/ |
2983 | I32 |
2984 | cando_by_name(I32 bit, I32 effective, char *fname) |
2985 | { |
2986 | static char usrname[L_cuserid]; |
2987 | static struct dsc$descriptor_s usrdsc = |
2988 | {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, usrname}; |
2989 | |
2990 | unsigned long int objtyp = ACL$C_FILE, access, retsts, privused, iosb[2]; |
2991 | unsigned short int retlen; |
2992 | struct dsc$descriptor_s namdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
2993 | union prvdef curprv; |
2994 | struct itmlst_3 armlst[3] = {{sizeof access, CHP$_ACCESS, &access, &retlen}, |
2995 | {sizeof privused, CHP$_PRIVUSED, &privused, &retlen},{0,0,0,0}}; |
2996 | struct itmlst_3 jpilst[2] = {{sizeof curprv, JPI$_CURPRIV, &curprv, &retlen}, |
2997 | {0,0,0,0}}; |
2998 | |
2999 | if (!fname || !*fname) return FALSE; |
3000 | if (!usrdsc.dsc$w_length) { |
3001 | cuserid(usrname); |
3002 | usrdsc.dsc$w_length = strlen(usrname); |
3003 | } |
3004 | namdsc.dsc$w_length = strlen(fname); |
3005 | namdsc.dsc$a_pointer = fname; |
3006 | switch (bit) { |
3007 | case S_IXUSR: |
3008 | case S_IXGRP: |
3009 | case S_IXOTH: |
3010 | access = ARM$M_EXECUTE; |
3011 | break; |
3012 | case S_IRUSR: |
3013 | case S_IRGRP: |
3014 | case S_IROTH: |
3015 | access = ARM$M_READ; |
3016 | break; |
3017 | case S_IWUSR: |
3018 | case S_IWGRP: |
3019 | case S_IWOTH: |
3020 | access = ARM$M_WRITE; |
3021 | break; |
3022 | case S_IDUSR: |
3023 | case S_IDGRP: |
3024 | case S_IDOTH: |
3025 | access = ARM$M_DELETE; |
3026 | break; |
3027 | default: |
3028 | return FALSE; |
3029 | } |
3030 | |
3031 | retsts = sys$check_access(&objtyp,&namdsc,&usrdsc,armlst); |
e518068a |
3032 | if (retsts == SS$_NOPRIV || retsts == SS$_NOSUCHOBJ || retsts == RMS$_FNF || |
748a9306 |
3033 | retsts == RMS$_DIR || retsts == RMS$_DEV) return FALSE; |
3034 | if (retsts == SS$_NORMAL) { |
3035 | if (!privused) return TRUE; |
3036 | /* We can get access, but only by using privs. Do we have the |
3037 | necessary privs currently enabled? */ |
3038 | _ckvmssts(sys$getjpiw(0,0,0,jpilst,iosb,0,0)); |
3039 | if ((privused & CHP$M_BYPASS) && !curprv.prv$v_bypass) return FALSE; |
c07a80fd |
3040 | if ((privused & CHP$M_SYSPRV) && !curprv.prv$v_sysprv && |
3041 | !curprv.prv$v_bypass) return FALSE; |
3042 | if ((privused & CHP$M_GRPPRV) && !curprv.prv$v_grpprv && |
3043 | !curprv.prv$v_sysprv && !curprv.prv$v_bypass) return FALSE; |
748a9306 |
3044 | if ((privused & CHP$M_READALL) && !curprv.prv$v_readall) return FALSE; |
3045 | return TRUE; |
3046 | } |
3047 | _ckvmssts(retsts); |
3048 | |
3049 | return FALSE; /* Should never get here */ |
3050 | |
3051 | } /* end of cando_by_name() */ |
3052 | /*}}}*/ |
3053 | |
3054 | |
3055 | /*{{{ int flex_fstat(int fd, struct stat *statbuf)*/ |
3056 | int |
3057 | flex_fstat(int fd, struct stat *statbuf) |
3058 | { |
3059 | char fspec[NAM$C_MAXRSS+1]; |
3060 | |
3061 | if (!getname(fd,fspec,1)) return -1; |
3062 | return flex_stat(fspec,statbuf); |
3063 | |
3064 | } /* end of flex_fstat() */ |
3065 | /*}}}*/ |
3066 | |
3067 | /*{{{ int flex_stat(char *fspec, struct stat *statbufp)*/ |
e518068a |
3068 | /* We defined 'stat' as 'mystat' in vmsish.h so that declarations of |
3069 | * 'struct stat' elsewhere in Perl would use our struct. We go back |
3070 | * to the system version here, since we're actually calling their |
3071 | * stat(). |
3072 | */ |
3073 | #undef stat |
748a9306 |
3074 | int |
e518068a |
3075 | flex_stat(char *fspec, struct mystat *statbufp) |
748a9306 |
3076 | { |
3077 | char fileified[NAM$C_MAXRSS+1]; |
3078 | int retval,myretval; |
e518068a |
3079 | struct mystat tmpbuf; |
748a9306 |
3080 | |
3081 | |
3082 | if (statbufp == &statcache) do_tovmsspec(fspec,namecache,0); |
3083 | if (is_null_device(fspec)) { /* Fake a stat() for the null device */ |
3084 | memset(statbufp,0,sizeof *statbufp); |
3085 | statbufp->st_dev = encode_dev("_NLA0:"); |
3086 | statbufp->st_mode = S_IFBLK | S_IREAD | S_IWRITE | S_IEXEC; |
3087 | statbufp->st_uid = 0x00010001; |
3088 | statbufp->st_gid = 0x0001; |
3089 | time((time_t *)&statbufp->st_mtime); |
3090 | statbufp->st_atime = statbufp->st_ctime = statbufp->st_mtime; |
3091 | return 0; |
3092 | } |
3093 | |
748a9306 |
3094 | if (do_fileify_dirspec(fspec,fileified,0) == NULL) myretval = -1; |
3095 | else { |
3096 | myretval = stat(fileified,(stat_t *) &tmpbuf); |
3097 | } |
3098 | retval = stat(fspec,(stat_t *) statbufp); |
3099 | if (!myretval) { |
3100 | if (retval == -1) { |
3101 | *statbufp = tmpbuf; |
3102 | retval = 0; |
3103 | } |
3104 | else if (!retval) { /* Dir with same name. Substitute it. */ |
3105 | statbufp->st_mode &= ~S_IFDIR; |
3106 | statbufp->st_mode |= tmpbuf.st_mode & S_IFDIR; |
3107 | strcpy(namecache,fileified); |
3108 | } |
3109 | } |
3110 | if (!retval) statbufp->st_dev = encode_dev(statbufp->st_devnam); |
3111 | return retval; |
3112 | |
3113 | } /* end of flex_stat() */ |
e518068a |
3114 | /* Reset definition for later calls */ |
3115 | #define stat mystat |
748a9306 |
3116 | /*}}}*/ |
3117 | |
c07a80fd |
3118 | /*{{{char *my_getlogin()*/ |
3119 | /* VMS cuserid == Unix getlogin, except calling sequence */ |
3120 | char * |
3121 | my_getlogin() |
3122 | { |
3123 | static char user[L_cuserid]; |
3124 | return cuserid(user); |
3125 | } |
3126 | /*}}}*/ |
3127 | |
3128 | |
748a9306 |
3129 | /*** The following glue provides 'hooks' to make some of the routines |
3130 | * from this file available from Perl. These routines are sufficiently |
3131 | * basic, and are required sufficiently early in the build process, |
3132 | * that's it's nice to have them available to miniperl as well as the |
3133 | * full Perl, so they're set up here instead of in an extension. The |
3134 | * Perl code which handles importation of these names into a given |
3135 | * package lives in [.VMS]Filespec.pm in @INC. |
3136 | */ |
3137 | |
3138 | void |
3139 | vmsify_fromperl(CV *cv) |
3140 | { |
3141 | dXSARGS; |
3142 | char *vmsified; |
3143 | |
3144 | if (items != 1) croak("Usage: VMS::Filespec::vmsify(spec)"); |
3145 | vmsified = do_tovmsspec(SvPV(ST(0),na),NULL,1); |
3146 | ST(0) = sv_newmortal(); |
3147 | if (vmsified != NULL) sv_usepvn(ST(0),vmsified,strlen(vmsified)); |
3148 | XSRETURN(1); |
3149 | } |
3150 | |
3151 | void |
3152 | unixify_fromperl(CV *cv) |
3153 | { |
3154 | dXSARGS; |
3155 | char *unixified; |
3156 | |
3157 | if (items != 1) croak("Usage: VMS::Filespec::unixify(spec)"); |
3158 | unixified = do_tounixspec(SvPV(ST(0),na),NULL,1); |
3159 | ST(0) = sv_newmortal(); |
3160 | if (unixified != NULL) sv_usepvn(ST(0),unixified,strlen(unixified)); |
3161 | XSRETURN(1); |
3162 | } |
3163 | |
3164 | void |
3165 | fileify_fromperl(CV *cv) |
3166 | { |
3167 | dXSARGS; |
3168 | char *fileified; |
3169 | |
3170 | if (items != 1) croak("Usage: VMS::Filespec::fileify(spec)"); |
3171 | fileified = do_fileify_dirspec(SvPV(ST(0),na),NULL,1); |
3172 | ST(0) = sv_newmortal(); |
3173 | if (fileified != NULL) sv_usepvn(ST(0),fileified,strlen(fileified)); |
3174 | XSRETURN(1); |
3175 | } |
3176 | |
3177 | void |
3178 | pathify_fromperl(CV *cv) |
3179 | { |
3180 | dXSARGS; |
3181 | char *pathified; |
3182 | |
3183 | if (items != 1) croak("Usage: VMS::Filespec::pathify(spec)"); |
3184 | pathified = do_pathify_dirspec(SvPV(ST(0),na),NULL,1); |
3185 | ST(0) = sv_newmortal(); |
3186 | if (pathified != NULL) sv_usepvn(ST(0),pathified,strlen(pathified)); |
3187 | XSRETURN(1); |
3188 | } |
3189 | |
3190 | void |
3191 | vmspath_fromperl(CV *cv) |
3192 | { |
3193 | dXSARGS; |
3194 | char *vmspath; |
3195 | |
3196 | if (items != 1) croak("Usage: VMS::Filespec::vmspath(spec)"); |
3197 | vmspath = do_tovmspath(SvPV(ST(0),na),NULL,1); |
3198 | ST(0) = sv_newmortal(); |
3199 | if (vmspath != NULL) sv_usepvn(ST(0),vmspath,strlen(vmspath)); |
3200 | XSRETURN(1); |
3201 | } |
3202 | |
3203 | void |
3204 | unixpath_fromperl(CV *cv) |
3205 | { |
3206 | dXSARGS; |
3207 | char *unixpath; |
3208 | |
3209 | if (items != 1) croak("Usage: VMS::Filespec::unixpath(spec)"); |
3210 | unixpath = do_tounixpath(SvPV(ST(0),na),NULL,1); |
3211 | ST(0) = sv_newmortal(); |
3212 | if (unixpath != NULL) sv_usepvn(ST(0),unixpath,strlen(unixpath)); |
3213 | XSRETURN(1); |
3214 | } |
3215 | |
3216 | void |
3217 | candelete_fromperl(CV *cv) |
3218 | { |
3219 | dXSARGS; |
3220 | char vmsspec[NAM$C_MAXRSS+1]; |
3221 | |
3222 | if (items != 1) croak("Usage: VMS::Filespec::candelete(spec)"); |
3223 | if (do_tovmsspec(SvPV(ST(0),na),buf,0) && cando_by_name(S_IDUSR,0,buf)) |
3224 | ST(0) = &sv_yes; |
3225 | else ST(0) = &sv_no; |
3226 | XSRETURN(1); |
3227 | } |
3228 | |
3229 | void |
3230 | init_os_extras() |
3231 | { |
3232 | char* file = __FILE__; |
3233 | |
3234 | newXS("VMS::Filespec::vmsify",vmsify_fromperl,file); |
3235 | newXS("VMS::Filespec::unixify",unixify_fromperl,file); |
3236 | newXS("VMS::Filespec::pathify",pathify_fromperl,file); |
3237 | newXS("VMS::Filespec::fileify",fileify_fromperl,file); |
3238 | newXS("VMS::Filespec::vmspath",vmspath_fromperl,file); |
3239 | newXS("VMS::Filespec::unixpath",unixpath_fromperl,file); |
3240 | newXS("VMS::Filespec::candelete",candelete_fromperl,file); |
3241 | return; |
3242 | } |
3243 | |
3244 | /* End of vms.c */ |