Commit | Line | Data |
a0d0e21e |
1 | /* doio.c |
a687059c |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, Larry Wall |
a687059c |
4 | * |
6e21c824 |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
a687059c |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "Far below them they saw the white waters pour into a foaming bowl, and |
12 | * then swirl darkly about a deep oval basin in the rocks, until they found |
13 | * their way out again through a narrow gate, and flowed away, fuming and |
14 | * chattering, into calmer and more level reaches." |
a687059c |
15 | */ |
16 | |
17 | #include "EXTERN.h" |
18 | #include "perl.h" |
19 | |
fe14fcc3 |
20 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
21 | #include <sys/ipc.h> |
fe14fcc3 |
22 | #ifdef HAS_MSG |
c2ab57d4 |
23 | #include <sys/msg.h> |
e5d73d77 |
24 | #endif |
fe14fcc3 |
25 | #ifdef HAS_SEM |
c2ab57d4 |
26 | #include <sys/sem.h> |
e5d73d77 |
27 | #endif |
fe14fcc3 |
28 | #ifdef HAS_SHM |
c2ab57d4 |
29 | #include <sys/shm.h> |
a0d0e21e |
30 | # ifndef HAS_SHMAT_PROTOTYPE |
31 | extern Shmat_t shmat _((int, char *, int)); |
32 | # endif |
c2ab57d4 |
33 | #endif |
e5d73d77 |
34 | #endif |
c2ab57d4 |
35 | |
663a0e37 |
36 | #ifdef I_UTIME |
37 | #include <utime.h> |
38 | #endif |
ff8e2863 |
39 | #ifdef I_FCNTL |
40 | #include <fcntl.h> |
41 | #endif |
fe14fcc3 |
42 | #ifdef I_SYS_FILE |
43 | #include <sys/file.h> |
44 | #endif |
a687059c |
45 | |
232e078e |
46 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
47 | # include <sys/socket.h> |
48 | # include <netdb.h> |
49 | # ifndef ENOTSOCK |
50 | # ifdef I_NET_ERRNO |
51 | # include <net/errno.h> |
52 | # endif |
53 | # endif |
54 | #endif |
55 | |
a687059c |
56 | bool |
a0d0e21e |
57 | do_open(gv,name,len,supplied_fp) |
79072805 |
58 | GV *gv; |
a687059c |
59 | register char *name; |
79072805 |
60 | I32 len; |
a0d0e21e |
61 | FILE *supplied_fp; |
a687059c |
62 | { |
63 | FILE *fp; |
a0d0e21e |
64 | register IO *io = GvIOn(gv); |
65 | char *myname = savepv(name); |
a687059c |
66 | int result; |
67 | int fd; |
68 | int writing = 0; |
a0d0e21e |
69 | int dodup; |
a687059c |
70 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
6e21c824 |
71 | FILE *saveifp = Nullfp; |
72 | FILE *saveofp = Nullfp; |
73 | char savetype = ' '; |
a687059c |
74 | |
8990e307 |
75 | SAVEFREEPV(myname); |
bee1dbe2 |
76 | mode[0] = mode[1] = mode[2] = '\0'; |
a687059c |
77 | name = myname; |
78 | forkprocess = 1; /* assume true if no fork */ |
99b89507 |
79 | while (len && isSPACE(name[len-1])) |
a687059c |
80 | name[--len] = '\0'; |
a0d0e21e |
81 | if (IoIFP(io)) { |
8990e307 |
82 | fd = fileno(IoIFP(io)); |
83 | if (IoTYPE(io) == '-') |
c2ab57d4 |
84 | result = 0; |
6e21c824 |
85 | else if (fd <= maxsysfd) { |
8990e307 |
86 | saveifp = IoIFP(io); |
87 | saveofp = IoOFP(io); |
88 | savetype = IoTYPE(io); |
6e21c824 |
89 | result = 0; |
90 | } |
8990e307 |
91 | else if (IoTYPE(io) == '|') |
92 | result = my_pclose(IoIFP(io)); |
93 | else if (IoIFP(io) != IoOFP(io)) { |
94 | if (IoOFP(io)) { |
95 | result = fclose(IoOFP(io)); |
96 | fclose(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
97 | } |
98 | else |
8990e307 |
99 | result = fclose(IoIFP(io)); |
a687059c |
100 | } |
a687059c |
101 | else |
8990e307 |
102 | result = fclose(IoIFP(io)); |
6e21c824 |
103 | if (result == EOF && fd > maxsysfd) |
a687059c |
104 | fprintf(stderr,"Warning: unable to close filehandle %s properly.\n", |
79072805 |
105 | GvENAME(gv)); |
8990e307 |
106 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c |
107 | } |
108 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ |
109 | mode[1] = *name++; |
110 | mode[2] = '\0'; |
111 | --len; |
112 | writing = 1; |
113 | } |
114 | else { |
115 | mode[1] = '\0'; |
116 | } |
8990e307 |
117 | IoTYPE(io) = *name; |
a687059c |
118 | if (*name == '|') { |
99b89507 |
119 | /*SUPPRESS 530*/ |
120 | for (name++; isSPACE(*name); name++) ; |
79072805 |
121 | if (strNE(name,"-")) |
122 | TAINT_ENV(); |
123 | TAINT_PROPER("piped open"); |
a0d0e21e |
124 | if (dowarn && name[strlen(name)-1] == '|') |
125 | warn("Can't do bidirectional pipe"); |
79072805 |
126 | fp = my_popen(name,"w"); |
a687059c |
127 | writing = 1; |
128 | } |
a687059c |
129 | else if (*name == '>') { |
79072805 |
130 | TAINT_PROPER("open"); |
bf38876a |
131 | name++; |
132 | if (*name == '>') { |
8990e307 |
133 | mode[0] = IoTYPE(io) = 'a'; |
bf38876a |
134 | name++; |
a687059c |
135 | } |
bf38876a |
136 | else |
a687059c |
137 | mode[0] = 'w'; |
a687059c |
138 | writing = 1; |
bf38876a |
139 | if (*name == '&') { |
140 | duplicity: |
a0d0e21e |
141 | dodup = 1; |
bf38876a |
142 | name++; |
a0d0e21e |
143 | if (*name == '=') { |
144 | dodup = 0; |
bf38876a |
145 | name++; |
a0d0e21e |
146 | } |
147 | if (!*name && supplied_fp) |
148 | fp = supplied_fp; |
bf38876a |
149 | else { |
a0d0e21e |
150 | while (isSPACE(*name)) |
151 | name++; |
152 | if (isDIGIT(*name)) |
153 | fd = atoi(name); |
154 | else { |
155 | IO* thatio; |
156 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); |
157 | thatio = GvIO(gv); |
158 | if (!thatio) { |
6e21c824 |
159 | #ifdef EINVAL |
748a9306 |
160 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 |
161 | #endif |
a0d0e21e |
162 | goto say_false; |
163 | } |
164 | if (IoIFP(thatio)) { |
165 | fd = fileno(IoIFP(thatio)); |
166 | if (IoTYPE(thatio) == 's') |
167 | IoTYPE(io) = 's'; |
168 | } |
169 | else |
170 | fd = -1; |
bf38876a |
171 | } |
a0d0e21e |
172 | if (dodup) |
173 | fd = dup(fd); |
174 | if (!(fp = fdopen(fd,mode))) |
fec02dd3 |
175 | if (dodup) |
176 | close(fd); |
fe14fcc3 |
177 | } |
bf38876a |
178 | } |
179 | else { |
99b89507 |
180 | while (isSPACE(*name)) |
bf38876a |
181 | name++; |
182 | if (strEQ(name,"-")) { |
183 | fp = stdout; |
8990e307 |
184 | IoTYPE(io) = '-'; |
bf38876a |
185 | } |
186 | else { |
187 | fp = fopen(name,mode); |
188 | } |
189 | } |
a687059c |
190 | } |
191 | else { |
192 | if (*name == '<') { |
bf38876a |
193 | mode[0] = 'r'; |
194 | name++; |
99b89507 |
195 | while (isSPACE(*name)) |
bf38876a |
196 | name++; |
197 | if (*name == '&') |
198 | goto duplicity; |
a687059c |
199 | if (strEQ(name,"-")) { |
200 | fp = stdin; |
8990e307 |
201 | IoTYPE(io) = '-'; |
a687059c |
202 | } |
bf38876a |
203 | else |
a687059c |
204 | fp = fopen(name,mode); |
a687059c |
205 | } |
206 | else if (name[len-1] == '|') { |
a687059c |
207 | name[--len] = '\0'; |
99b89507 |
208 | while (len && isSPACE(name[len-1])) |
a687059c |
209 | name[--len] = '\0'; |
99b89507 |
210 | /*SUPPRESS 530*/ |
211 | for (; isSPACE(*name); name++) ; |
79072805 |
212 | if (strNE(name,"-")) |
213 | TAINT_ENV(); |
214 | TAINT_PROPER("piped open"); |
215 | fp = my_popen(name,"r"); |
8990e307 |
216 | IoTYPE(io) = '|'; |
a687059c |
217 | } |
218 | else { |
8990e307 |
219 | IoTYPE(io) = '<'; |
99b89507 |
220 | /*SUPPRESS 530*/ |
221 | for (; isSPACE(*name); name++) ; |
a687059c |
222 | if (strEQ(name,"-")) { |
223 | fp = stdin; |
8990e307 |
224 | IoTYPE(io) = '-'; |
a687059c |
225 | } |
226 | else |
227 | fp = fopen(name,"r"); |
228 | } |
229 | } |
bee1dbe2 |
230 | if (!fp) { |
8990e307 |
231 | if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n')) |
bee1dbe2 |
232 | warn(warn_nl, "open"); |
6e21c824 |
233 | goto say_false; |
bee1dbe2 |
234 | } |
8990e307 |
235 | if (IoTYPE(io) && |
236 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { |
a0d0e21e |
237 | if (Fstat(fileno(fp),&statbuf) < 0) { |
a687059c |
238 | (void)fclose(fp); |
6e21c824 |
239 | goto say_false; |
a687059c |
240 | } |
1462b684 |
241 | if (S_ISSOCK(statbuf.st_mode)) |
8990e307 |
242 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 |
243 | #ifdef HAS_SOCKET |
244 | else if ( |
c623bd54 |
245 | #ifdef S_IFMT |
99b89507 |
246 | !(statbuf.st_mode & S_IFMT) |
247 | #else |
248 | !statbuf.st_mode |
249 | #endif |
250 | ) { |
a0d0e21e |
251 | int buflen = sizeof tokenbuf; |
252 | if (getsockname(fileno(fp), (struct sockaddr *)tokenbuf, &buflen) >= 0 |
bee1dbe2 |
253 | || errno != ENOTSOCK) |
8990e307 |
254 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 |
255 | /* but some return 0 for streams too, sigh */ |
256 | } |
bf38876a |
257 | #endif |
a687059c |
258 | } |
6e21c824 |
259 | if (saveifp) { /* must use old fp? */ |
260 | fd = fileno(saveifp); |
261 | if (saveofp) { |
262 | fflush(saveofp); /* emulate fclose() */ |
263 | if (saveofp != saveifp) { /* was a socket? */ |
264 | fclose(saveofp); |
99b89507 |
265 | if (fd > 2) |
266 | Safefree(saveofp); |
6e21c824 |
267 | } |
268 | } |
269 | if (fd != fileno(fp)) { |
bee1dbe2 |
270 | int pid; |
79072805 |
271 | SV *sv; |
bee1dbe2 |
272 | |
6e21c824 |
273 | dup2(fileno(fp), fd); |
79072805 |
274 | sv = *av_fetch(fdpid,fileno(fp),TRUE); |
a0d0e21e |
275 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
276 | pid = SvIVX(sv); |
277 | SvIVX(sv) = 0; |
79072805 |
278 | sv = *av_fetch(fdpid,fd,TRUE); |
a0d0e21e |
279 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
280 | SvIVX(sv) = pid; |
6e21c824 |
281 | fclose(fp); |
bee1dbe2 |
282 | |
6e21c824 |
283 | } |
284 | fp = saveifp; |
bee1dbe2 |
285 | clearerr(fp); |
6e21c824 |
286 | } |
a0d0e21e |
287 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
1462b684 |
288 | fd = fileno(fp); |
a0d0e21e |
289 | fcntl(fd,F_SETFD,fd > maxsysfd); |
1462b684 |
290 | #endif |
8990e307 |
291 | IoIFP(io) = fp; |
bf38876a |
292 | if (writing) { |
8990e307 |
293 | if (IoTYPE(io) == 's' |
294 | || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { |
295 | if (!(IoOFP(io) = fdopen(fileno(fp),"w"))) { |
fe14fcc3 |
296 | fclose(fp); |
8990e307 |
297 | IoIFP(io) = Nullfp; |
6e21c824 |
298 | goto say_false; |
fe14fcc3 |
299 | } |
1462b684 |
300 | } |
301 | else |
8990e307 |
302 | IoOFP(io) = fp; |
bf38876a |
303 | } |
a687059c |
304 | return TRUE; |
6e21c824 |
305 | |
306 | say_false: |
8990e307 |
307 | IoIFP(io) = saveifp; |
308 | IoOFP(io) = saveofp; |
309 | IoTYPE(io) = savetype; |
6e21c824 |
310 | return FALSE; |
a687059c |
311 | } |
312 | |
313 | FILE * |
79072805 |
314 | nextargv(gv) |
315 | register GV *gv; |
a687059c |
316 | { |
79072805 |
317 | register SV *sv; |
99b89507 |
318 | #ifndef FLEXFILENAMES |
c623bd54 |
319 | int filedev; |
320 | int fileino; |
99b89507 |
321 | #endif |
c623bd54 |
322 | int fileuid; |
323 | int filegid; |
fe14fcc3 |
324 | |
79072805 |
325 | if (!argvoutgv) |
85e6fe83 |
326 | argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
fe14fcc3 |
327 | if (filemode & (S_ISUID|S_ISGID)) { |
a0d0e21e |
328 | fflush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 |
329 | #ifdef HAS_FCHMOD |
330 | (void)fchmod(lastfd,filemode); |
331 | #else |
332 | (void)chmod(oldname,filemode); |
333 | #endif |
334 | } |
335 | filemode = 0; |
79072805 |
336 | while (av_len(GvAV(gv)) >= 0) { |
463ee0b2 |
337 | STRLEN len; |
79072805 |
338 | sv = av_shift(GvAV(gv)); |
8990e307 |
339 | SAVEFREESV(sv); |
79072805 |
340 | sv_setsv(GvSV(gv),sv); |
341 | SvSETMAGIC(GvSV(gv)); |
463ee0b2 |
342 | oldname = SvPVx(GvSV(gv), len); |
a0d0e21e |
343 | if (do_open(gv,oldname,len,Nullfp)) { |
a687059c |
344 | if (inplace) { |
79072805 |
345 | TAINT_PROPER("inplace open"); |
c623bd54 |
346 | if (strEQ(oldname,"-")) { |
4633a7c4 |
347 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e |
348 | return IoIFP(GvIOp(gv)); |
c623bd54 |
349 | } |
99b89507 |
350 | #ifndef FLEXFILENAMES |
c623bd54 |
351 | filedev = statbuf.st_dev; |
352 | fileino = statbuf.st_ino; |
99b89507 |
353 | #endif |
a687059c |
354 | filemode = statbuf.st_mode; |
355 | fileuid = statbuf.st_uid; |
356 | filegid = statbuf.st_gid; |
c623bd54 |
357 | if (!S_ISREG(filemode)) { |
358 | warn("Can't do inplace edit: %s is not a regular file", |
359 | oldname ); |
79072805 |
360 | do_close(gv,FALSE); |
c623bd54 |
361 | continue; |
362 | } |
a687059c |
363 | if (*inplace) { |
ff8e2863 |
364 | #ifdef SUFFIX |
79072805 |
365 | add_suffix(sv,inplace); |
ff8e2863 |
366 | #else |
79072805 |
367 | sv_catpv(sv,inplace); |
ff8e2863 |
368 | #endif |
c623bd54 |
369 | #ifndef FLEXFILENAMES |
a0d0e21e |
370 | if (Stat(SvPVX(sv),&statbuf) >= 0 |
c623bd54 |
371 | && statbuf.st_dev == filedev |
372 | && statbuf.st_ino == fileino ) { |
373 | warn("Can't do inplace edit: %s > 14 characters", |
463ee0b2 |
374 | SvPVX(sv) ); |
79072805 |
375 | do_close(gv,FALSE); |
c623bd54 |
376 | continue; |
377 | } |
378 | #endif |
fe14fcc3 |
379 | #ifdef HAS_RENAME |
bee1dbe2 |
380 | #ifndef DOSISH |
463ee0b2 |
381 | if (rename(oldname,SvPVX(sv)) < 0) { |
c623bd54 |
382 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 |
383 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
384 | do_close(gv,FALSE); |
c623bd54 |
385 | continue; |
386 | } |
a687059c |
387 | #else |
79072805 |
388 | do_close(gv,FALSE); |
463ee0b2 |
389 | (void)unlink(SvPVX(sv)); |
390 | (void)rename(oldname,SvPVX(sv)); |
a0d0e21e |
391 | do_open(gv,SvPVX(sv),SvCUR(GvSV(gv)),Nullfp); |
ff8e2863 |
392 | #endif /* MSDOS */ |
393 | #else |
463ee0b2 |
394 | (void)UNLINK(SvPVX(sv)); |
395 | if (link(oldname,SvPVX(sv)) < 0) { |
c623bd54 |
396 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 |
397 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
398 | do_close(gv,FALSE); |
c623bd54 |
399 | continue; |
400 | } |
a687059c |
401 | (void)UNLINK(oldname); |
402 | #endif |
403 | } |
404 | else { |
bee1dbe2 |
405 | #ifndef DOSISH |
fe14fcc3 |
406 | if (UNLINK(oldname) < 0) { |
407 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 |
408 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
409 | do_close(gv,FALSE); |
fe14fcc3 |
410 | continue; |
411 | } |
ff8e2863 |
412 | #else |
463ee0b2 |
413 | croak("Can't do inplace edit without backup"); |
ff8e2863 |
414 | #endif |
a687059c |
415 | } |
416 | |
79072805 |
417 | sv_setpvn(sv,">",1); |
418 | sv_catpv(sv,oldname); |
748a9306 |
419 | SETERRNO(0,0); /* in case sprintf set errno */ |
a0d0e21e |
420 | if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),Nullfp)) { |
c623bd54 |
421 | warn("Can't do inplace edit on %s: %s", |
2304df62 |
422 | oldname, Strerror(errno) ); |
79072805 |
423 | do_close(gv,FALSE); |
fe14fcc3 |
424 | continue; |
425 | } |
4633a7c4 |
426 | setdefout(argvoutgv); |
a0d0e21e |
427 | lastfd = fileno(IoIFP(GvIOp(argvoutgv))); |
428 | (void)Fstat(lastfd,&statbuf); |
fe14fcc3 |
429 | #ifdef HAS_FCHMOD |
430 | (void)fchmod(lastfd,filemode); |
a687059c |
431 | #else |
432 | (void)chmod(oldname,filemode); |
433 | #endif |
fe14fcc3 |
434 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
435 | #ifdef HAS_FCHOWN |
436 | (void)fchown(lastfd,fileuid,filegid); |
a687059c |
437 | #else |
fe14fcc3 |
438 | #ifdef HAS_CHOWN |
439 | (void)chown(oldname,fileuid,filegid); |
a687059c |
440 | #endif |
b1248f16 |
441 | #endif |
fe14fcc3 |
442 | } |
a687059c |
443 | } |
a0d0e21e |
444 | return IoIFP(GvIOp(gv)); |
a687059c |
445 | } |
446 | else |
2304df62 |
447 | fprintf(stderr,"Can't open %s: %s\n",SvPV(sv, na), Strerror(errno)); |
a687059c |
448 | } |
449 | if (inplace) { |
79072805 |
450 | (void)do_close(argvoutgv,FALSE); |
4633a7c4 |
451 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c |
452 | } |
453 | return Nullfp; |
454 | } |
455 | |
fe14fcc3 |
456 | #ifdef HAS_PIPE |
afd9f252 |
457 | void |
79072805 |
458 | do_pipe(sv, rgv, wgv) |
459 | SV *sv; |
460 | GV *rgv; |
461 | GV *wgv; |
afd9f252 |
462 | { |
79072805 |
463 | register IO *rstio; |
464 | register IO *wstio; |
afd9f252 |
465 | int fd[2]; |
466 | |
79072805 |
467 | if (!rgv) |
afd9f252 |
468 | goto badexit; |
79072805 |
469 | if (!wgv) |
afd9f252 |
470 | goto badexit; |
471 | |
a0d0e21e |
472 | rstio = GvIOn(rgv); |
473 | wstio = GvIOn(wgv); |
afd9f252 |
474 | |
a0d0e21e |
475 | if (IoIFP(rstio)) |
79072805 |
476 | do_close(rgv,FALSE); |
a0d0e21e |
477 | if (IoIFP(wstio)) |
79072805 |
478 | do_close(wgv,FALSE); |
afd9f252 |
479 | |
480 | if (pipe(fd) < 0) |
481 | goto badexit; |
8990e307 |
482 | IoIFP(rstio) = fdopen(fd[0], "r"); |
483 | IoOFP(wstio) = fdopen(fd[1], "w"); |
484 | IoIFP(wstio) = IoOFP(wstio); |
485 | IoTYPE(rstio) = '<'; |
486 | IoTYPE(wstio) = '>'; |
487 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
488 | if (IoIFP(rstio)) fclose(IoIFP(rstio)); |
fe14fcc3 |
489 | else close(fd[0]); |
8990e307 |
490 | if (IoOFP(wstio)) fclose(IoOFP(wstio)); |
fe14fcc3 |
491 | else close(fd[1]); |
492 | goto badexit; |
493 | } |
afd9f252 |
494 | |
79072805 |
495 | sv_setsv(sv,&sv_yes); |
afd9f252 |
496 | return; |
497 | |
498 | badexit: |
79072805 |
499 | sv_setsv(sv,&sv_undef); |
afd9f252 |
500 | return; |
501 | } |
b1248f16 |
502 | #endif |
afd9f252 |
503 | |
a687059c |
504 | bool |
a0d0e21e |
505 | #ifndef CAN_PROTOTYPE |
79072805 |
506 | do_close(gv,explicit) |
507 | GV *gv; |
a687059c |
508 | bool explicit; |
8990e307 |
509 | #else |
510 | do_close(GV *gv, bool explicit) |
a0d0e21e |
511 | #endif /* CAN_PROTOTYPE */ |
a687059c |
512 | { |
513 | bool retval = FALSE; |
79072805 |
514 | register IO *io; |
a687059c |
515 | int status; |
516 | |
79072805 |
517 | if (!gv) |
518 | gv = argvgv; |
a0d0e21e |
519 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
748a9306 |
520 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 |
521 | return FALSE; |
99b89507 |
522 | } |
79072805 |
523 | io = GvIO(gv); |
524 | if (!io) { /* never opened */ |
a687059c |
525 | if (dowarn && explicit) |
79072805 |
526 | warn("Close on unopened file <%s>",GvENAME(gv)); |
a687059c |
527 | return FALSE; |
528 | } |
8990e307 |
529 | if (IoIFP(io)) { |
530 | if (IoTYPE(io) == '|') { |
531 | status = my_pclose(IoIFP(io)); |
c623bd54 |
532 | retval = (status == 0); |
748a9306 |
533 | statusvalue = FIXSTATUS(status); |
a687059c |
534 | } |
8990e307 |
535 | else if (IoTYPE(io) == '-') |
a687059c |
536 | retval = TRUE; |
537 | else { |
8990e307 |
538 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
539 | retval = (fclose(IoOFP(io)) != EOF); |
540 | fclose(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
541 | } |
542 | else |
8990e307 |
543 | retval = (fclose(IoIFP(io)) != EOF); |
a687059c |
544 | } |
8990e307 |
545 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 |
546 | } |
547 | if (explicit) { |
8990e307 |
548 | IoLINES(io) = 0; |
549 | IoPAGE(io) = 0; |
550 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
a687059c |
551 | } |
8990e307 |
552 | IoTYPE(io) = ' '; |
a687059c |
553 | return retval; |
554 | } |
555 | |
556 | bool |
79072805 |
557 | do_eof(gv) |
558 | GV *gv; |
a687059c |
559 | { |
79072805 |
560 | register IO *io; |
a687059c |
561 | int ch; |
562 | |
79072805 |
563 | io = GvIO(gv); |
a687059c |
564 | |
79072805 |
565 | if (!io) |
a687059c |
566 | return TRUE; |
567 | |
8990e307 |
568 | while (IoIFP(io)) { |
a687059c |
569 | |
16d20bd9 |
570 | #ifdef USE_STDIO_PTR /* (the code works without this) */ |
571 | if (FILE_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
a687059c |
572 | return FALSE; /* this is the most usual case */ |
573 | #endif |
574 | |
8990e307 |
575 | ch = getc(IoIFP(io)); |
a687059c |
576 | if (ch != EOF) { |
8990e307 |
577 | (void)ungetc(ch, IoIFP(io)); |
a687059c |
578 | return FALSE; |
579 | } |
c2960299 |
580 | #if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE) |
16d20bd9 |
581 | if (FILE_cnt(IoIFP(io)) < -1) |
582 | FILE_cnt(IoIFP(io)) = -1; |
fe14fcc3 |
583 | #endif |
8990e307 |
584 | if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
79072805 |
585 | if (!nextargv(argvgv)) /* get another fp handy */ |
a687059c |
586 | return TRUE; |
587 | } |
588 | else |
589 | return TRUE; /* normal fp, definitely end of file */ |
590 | } |
591 | return TRUE; |
592 | } |
593 | |
594 | long |
79072805 |
595 | do_tell(gv) |
596 | GV *gv; |
a687059c |
597 | { |
79072805 |
598 | register IO *io; |
a687059c |
599 | |
79072805 |
600 | if (!gv) |
a687059c |
601 | goto phooey; |
602 | |
79072805 |
603 | io = GvIO(gv); |
8990e307 |
604 | if (!io || !IoIFP(io)) |
a687059c |
605 | goto phooey; |
606 | |
bee1dbe2 |
607 | #ifdef ULTRIX_STDIO_BOTCH |
8990e307 |
608 | if (feof(IoIFP(io))) |
609 | (void)fseek (IoIFP(io), 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
610 | #endif |
a687059c |
611 | |
8990e307 |
612 | return ftell(IoIFP(io)); |
a687059c |
613 | |
614 | phooey: |
615 | if (dowarn) |
616 | warn("tell() on unopened file"); |
748a9306 |
617 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
618 | return -1L; |
619 | } |
620 | |
621 | bool |
79072805 |
622 | do_seek(gv, pos, whence) |
623 | GV *gv; |
a687059c |
624 | long pos; |
625 | int whence; |
626 | { |
79072805 |
627 | register IO *io; |
a687059c |
628 | |
79072805 |
629 | if (!gv) |
a687059c |
630 | goto nuts; |
631 | |
79072805 |
632 | io = GvIO(gv); |
8990e307 |
633 | if (!io || !IoIFP(io)) |
a687059c |
634 | goto nuts; |
635 | |
bee1dbe2 |
636 | #ifdef ULTRIX_STDIO_BOTCH |
8990e307 |
637 | if (feof(IoIFP(io))) |
638 | (void)fseek (IoIFP(io), 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
639 | #endif |
a687059c |
640 | |
8990e307 |
641 | return fseek(IoIFP(io), pos, whence) >= 0; |
a687059c |
642 | |
643 | nuts: |
644 | if (dowarn) |
645 | warn("seek() on unopened file"); |
748a9306 |
646 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
647 | return FALSE; |
648 | } |
649 | |
a0d0e21e |
650 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 |
651 | /* code courtesy of William Kucharski */ |
fe14fcc3 |
652 | #define HAS_CHSIZE |
6eb13c3b |
653 | |
79072805 |
654 | I32 chsize(fd, length) |
655 | I32 fd; /* file descriptor */ |
85e6fe83 |
656 | Off_t length; /* length to set file to */ |
6eb13c3b |
657 | { |
658 | extern long lseek(); |
659 | struct flock fl; |
660 | struct stat filebuf; |
661 | |
a0d0e21e |
662 | if (Fstat(fd, &filebuf) < 0) |
6eb13c3b |
663 | return -1; |
664 | |
665 | if (filebuf.st_size < length) { |
666 | |
667 | /* extend file length */ |
668 | |
669 | if ((lseek(fd, (length - 1), 0)) < 0) |
670 | return -1; |
671 | |
672 | /* write a "0" byte */ |
673 | |
674 | if ((write(fd, "", 1)) != 1) |
675 | return -1; |
676 | } |
677 | else { |
678 | /* truncate length */ |
679 | |
680 | fl.l_whence = 0; |
681 | fl.l_len = 0; |
682 | fl.l_start = length; |
a0d0e21e |
683 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b |
684 | |
685 | /* |
a0d0e21e |
686 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b |
687 | * fcntl(2), which truncates the file so that it ends at the |
688 | * position indicated by fl.l_start. |
689 | * |
690 | * Will minor miracles never cease? |
691 | */ |
692 | |
a0d0e21e |
693 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b |
694 | return -1; |
695 | |
696 | } |
697 | |
698 | return 0; |
699 | } |
a0d0e21e |
700 | #endif /* F_FREESP */ |
ff8e2863 |
701 | |
79072805 |
702 | I32 |
703 | looks_like_number(sv) |
704 | SV *sv; |
a687059c |
705 | { |
706 | register char *s; |
707 | register char *send; |
708 | |
463ee0b2 |
709 | if (!SvPOK(sv)) { |
710 | STRLEN len; |
711 | if (!SvPOKp(sv)) |
712 | return TRUE; |
713 | s = SvPV(sv, len); |
714 | send = s + len; |
715 | } |
716 | else { |
717 | s = SvPVX(sv); |
718 | send = s + SvCUR(sv); |
719 | } |
99b89507 |
720 | while (isSPACE(*s)) |
a687059c |
721 | s++; |
722 | if (s >= send) |
723 | return FALSE; |
724 | if (*s == '+' || *s == '-') |
725 | s++; |
99b89507 |
726 | while (isDIGIT(*s)) |
a687059c |
727 | s++; |
728 | if (s == send) |
729 | return TRUE; |
730 | if (*s == '.') |
731 | s++; |
463ee0b2 |
732 | else if (s == SvPVX(sv)) |
a687059c |
733 | return FALSE; |
99b89507 |
734 | while (isDIGIT(*s)) |
a687059c |
735 | s++; |
736 | if (s == send) |
737 | return TRUE; |
738 | if (*s == 'e' || *s == 'E') { |
739 | s++; |
740 | if (*s == '+' || *s == '-') |
741 | s++; |
99b89507 |
742 | while (isDIGIT(*s)) |
a687059c |
743 | s++; |
744 | } |
99b89507 |
745 | while (isSPACE(*s)) |
a687059c |
746 | s++; |
747 | if (s >= send) |
748 | return TRUE; |
749 | return FALSE; |
750 | } |
751 | |
752 | bool |
79072805 |
753 | do_print(sv,fp) |
754 | register SV *sv; |
a687059c |
755 | FILE *fp; |
756 | { |
757 | register char *tmps; |
463ee0b2 |
758 | STRLEN len; |
a687059c |
759 | |
79072805 |
760 | /* assuming fp is checked earlier */ |
761 | if (!sv) |
762 | return TRUE; |
763 | if (ofmt) { |
8990e307 |
764 | if (SvGMAGICAL(sv)) |
79072805 |
765 | mg_get(sv); |
463ee0b2 |
766 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
767 | fprintf(fp, ofmt, (double)SvIVX(sv)); |
79072805 |
768 | return !ferror(fp); |
769 | } |
463ee0b2 |
770 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 |
771 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
463ee0b2 |
772 | fprintf(fp, ofmt, SvNVX(sv)); |
79072805 |
773 | return !ferror(fp); |
774 | } |
a687059c |
775 | } |
79072805 |
776 | switch (SvTYPE(sv)) { |
777 | case SVt_NULL: |
8990e307 |
778 | if (dowarn) |
779 | warn(warn_uninit); |
ff8e2863 |
780 | return TRUE; |
79072805 |
781 | case SVt_IV: |
a0d0e21e |
782 | if (SvIOK(sv)) { |
783 | if (SvGMAGICAL(sv)) |
784 | mg_get(sv); |
785 | fprintf(fp, "%ld", (long)SvIVX(sv)); |
786 | return !ferror(fp); |
787 | } |
788 | /* FALL THROUGH */ |
79072805 |
789 | default: |
463ee0b2 |
790 | tmps = SvPV(sv, len); |
79072805 |
791 | break; |
ff8e2863 |
792 | } |
a0d0e21e |
793 | if (len && (fwrite1(tmps,1,len,fp) == 0 || ferror(fp))) |
a687059c |
794 | return FALSE; |
79072805 |
795 | return TRUE; |
a687059c |
796 | } |
797 | |
79072805 |
798 | I32 |
799 | my_stat(ARGS) |
800 | dARGS |
a687059c |
801 | { |
79072805 |
802 | dSP; |
803 | IO *io; |
748a9306 |
804 | GV* tmpgv; |
79072805 |
805 | |
a0d0e21e |
806 | if (op->op_flags & OPf_REF) { |
79072805 |
807 | EXTEND(sp,1); |
748a9306 |
808 | tmpgv = cGVOP->op_gv; |
809 | do_fstat: |
810 | io = GvIO(tmpgv); |
8990e307 |
811 | if (io && IoIFP(io)) { |
748a9306 |
812 | statgv = tmpgv; |
79072805 |
813 | sv_setpv(statname,""); |
814 | laststype = OP_STAT; |
a0d0e21e |
815 | return (laststatval = Fstat(fileno(IoIFP(io)), &statcache)); |
a687059c |
816 | } |
817 | else { |
748a9306 |
818 | if (tmpgv == defgv) |
57ebbfd0 |
819 | return laststatval; |
a687059c |
820 | if (dowarn) |
821 | warn("Stat on unopened file <%s>", |
748a9306 |
822 | GvENAME(tmpgv)); |
79072805 |
823 | statgv = Nullgv; |
824 | sv_setpv(statname,""); |
57ebbfd0 |
825 | return (laststatval = -1); |
a687059c |
826 | } |
827 | } |
828 | else { |
748a9306 |
829 | SV* sv = POPs; |
79072805 |
830 | PUTBACK; |
748a9306 |
831 | if (SvTYPE(sv) == SVt_PVGV) { |
832 | tmpgv = (GV*)sv; |
833 | goto do_fstat; |
834 | } |
835 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { |
836 | tmpgv = (GV*)SvRV(sv); |
837 | goto do_fstat; |
838 | } |
839 | |
79072805 |
840 | statgv = Nullgv; |
463ee0b2 |
841 | sv_setpv(statname,SvPV(sv, na)); |
79072805 |
842 | laststype = OP_STAT; |
a0d0e21e |
843 | laststatval = Stat(SvPV(sv, na),&statcache); |
463ee0b2 |
844 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 |
845 | warn(warn_nl, "stat"); |
846 | return laststatval; |
a687059c |
847 | } |
848 | } |
849 | |
79072805 |
850 | I32 |
851 | my_lstat(ARGS) |
852 | dARGS |
c623bd54 |
853 | { |
79072805 |
854 | dSP; |
855 | SV *sv; |
a0d0e21e |
856 | if (op->op_flags & OPf_REF) { |
79072805 |
857 | EXTEND(sp,1); |
858 | if (cGVOP->op_gv == defgv) { |
859 | if (laststype != OP_LSTAT) |
463ee0b2 |
860 | croak("The stat preceding -l _ wasn't an lstat"); |
fe14fcc3 |
861 | return laststatval; |
862 | } |
463ee0b2 |
863 | croak("You can't use -l on a filehandle"); |
fe14fcc3 |
864 | } |
c623bd54 |
865 | |
79072805 |
866 | laststype = OP_LSTAT; |
867 | statgv = Nullgv; |
868 | sv = POPs; |
869 | PUTBACK; |
463ee0b2 |
870 | sv_setpv(statname,SvPV(sv, na)); |
fe14fcc3 |
871 | #ifdef HAS_LSTAT |
463ee0b2 |
872 | laststatval = lstat(SvPV(sv, na),&statcache); |
c623bd54 |
873 | #else |
a0d0e21e |
874 | laststatval = Stat(SvPV(sv, na),&statcache); |
c623bd54 |
875 | #endif |
463ee0b2 |
876 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 |
877 | warn(warn_nl, "lstat"); |
878 | return laststatval; |
c623bd54 |
879 | } |
880 | |
a687059c |
881 | bool |
79072805 |
882 | do_aexec(really,mark,sp) |
883 | SV *really; |
884 | register SV **mark; |
885 | register SV **sp; |
a687059c |
886 | { |
a687059c |
887 | register char **a; |
a687059c |
888 | char *tmps; |
889 | |
79072805 |
890 | if (sp > mark) { |
891 | New(401,Argv, sp - mark + 1, char*); |
bee1dbe2 |
892 | a = Argv; |
79072805 |
893 | while (++mark <= sp) { |
894 | if (*mark) |
463ee0b2 |
895 | *a++ = SvPVx(*mark, na); |
a687059c |
896 | else |
897 | *a++ = ""; |
898 | } |
899 | *a = Nullch; |
bee1dbe2 |
900 | if (*Argv[0] != '/') /* will execvp use PATH? */ |
79072805 |
901 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
463ee0b2 |
902 | if (really && *(tmps = SvPV(really, na))) |
bee1dbe2 |
903 | execvp(tmps,Argv); |
a687059c |
904 | else |
bee1dbe2 |
905 | execvp(Argv[0],Argv); |
a0d0e21e |
906 | if (dowarn) |
907 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); |
a687059c |
908 | } |
bee1dbe2 |
909 | do_execfree(); |
a687059c |
910 | return FALSE; |
911 | } |
912 | |
fe14fcc3 |
913 | void |
ff8e2863 |
914 | do_execfree() |
915 | { |
916 | if (Argv) { |
917 | Safefree(Argv); |
918 | Argv = Null(char **); |
919 | } |
920 | if (Cmd) { |
921 | Safefree(Cmd); |
922 | Cmd = Nullch; |
923 | } |
924 | } |
925 | |
a687059c |
926 | bool |
927 | do_exec(cmd) |
928 | char *cmd; |
929 | { |
930 | register char **a; |
931 | register char *s; |
a687059c |
932 | char flags[10]; |
933 | |
748a9306 |
934 | while (*cmd && isSPACE(*cmd)) |
935 | cmd++; |
936 | |
a687059c |
937 | /* save an extra exec if possible */ |
938 | |
bf38876a |
939 | #ifdef CSH |
940 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { |
a687059c |
941 | strcpy(flags,"-c"); |
bf38876a |
942 | s = cmd+cshlen+3; |
a687059c |
943 | if (*s == 'f') { |
944 | s++; |
945 | strcat(flags,"f"); |
946 | } |
947 | if (*s == ' ') |
948 | s++; |
949 | if (*s++ == '\'') { |
950 | char *ncmd = s; |
951 | |
952 | while (*s) |
953 | s++; |
954 | if (s[-1] == '\n') |
955 | *--s = '\0'; |
956 | if (s[-1] == '\'') { |
957 | *--s = '\0'; |
bf38876a |
958 | execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
959 | *s = '\''; |
960 | return FALSE; |
961 | } |
962 | } |
963 | } |
bf38876a |
964 | #endif /* CSH */ |
a687059c |
965 | |
966 | /* see if there are shell metacharacters in it */ |
967 | |
748a9306 |
968 | if (*cmd == '.' && isSPACE(cmd[1])) |
969 | goto doshell; |
970 | |
971 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
972 | goto doshell; |
973 | |
99b89507 |
974 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 |
975 | if (*s == '=') |
976 | goto doshell; |
748a9306 |
977 | |
a687059c |
978 | for (s = cmd; *s; s++) { |
93a17b20 |
979 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c |
980 | if (*s == '\n' && !s[1]) { |
981 | *s = '\0'; |
982 | break; |
983 | } |
984 | doshell: |
985 | execl("/bin/sh","sh","-c",cmd,(char*)0); |
986 | return FALSE; |
987 | } |
988 | } |
748a9306 |
989 | |
ff8e2863 |
990 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
a0d0e21e |
991 | Cmd = savepvn(cmd, s-cmd); |
ff8e2863 |
992 | a = Argv; |
993 | for (s = Cmd; *s;) { |
99b89507 |
994 | while (*s && isSPACE(*s)) s++; |
a687059c |
995 | if (*s) |
996 | *(a++) = s; |
99b89507 |
997 | while (*s && !isSPACE(*s)) s++; |
a687059c |
998 | if (*s) |
999 | *s++ = '\0'; |
1000 | } |
1001 | *a = Nullch; |
ff8e2863 |
1002 | if (Argv[0]) { |
1003 | execvp(Argv[0],Argv); |
b1248f16 |
1004 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1005 | do_execfree(); |
a687059c |
1006 | goto doshell; |
b1248f16 |
1007 | } |
a0d0e21e |
1008 | if (dowarn) |
1009 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); |
a687059c |
1010 | } |
ff8e2863 |
1011 | do_execfree(); |
a687059c |
1012 | return FALSE; |
1013 | } |
1014 | |
79072805 |
1015 | I32 |
1016 | apply(type,mark,sp) |
1017 | I32 type; |
1018 | register SV **mark; |
1019 | register SV **sp; |
a687059c |
1020 | { |
79072805 |
1021 | register I32 val; |
1022 | register I32 val2; |
1023 | register I32 tot = 0; |
a687059c |
1024 | char *s; |
79072805 |
1025 | SV **oldmark = mark; |
a687059c |
1026 | |
463ee0b2 |
1027 | if (tainting) { |
1028 | while (++mark <= sp) { |
748a9306 |
1029 | MAGIC *mg; |
1030 | if (SvMAGICAL(*mark) && (mg = mg_find(*mark, 't')) && mg->mg_len & 1) |
463ee0b2 |
1031 | tainted = TRUE; |
1032 | } |
1033 | mark = oldmark; |
1034 | } |
a687059c |
1035 | switch (type) { |
79072805 |
1036 | case OP_CHMOD: |
1037 | TAINT_PROPER("chmod"); |
1038 | if (++mark <= sp) { |
1039 | tot = sp - mark; |
463ee0b2 |
1040 | val = SvIVx(*mark); |
79072805 |
1041 | while (++mark <= sp) { |
463ee0b2 |
1042 | if (chmod(SvPVx(*mark, na),val)) |
a687059c |
1043 | tot--; |
1044 | } |
1045 | } |
1046 | break; |
fe14fcc3 |
1047 | #ifdef HAS_CHOWN |
79072805 |
1048 | case OP_CHOWN: |
1049 | TAINT_PROPER("chown"); |
1050 | if (sp - mark > 2) { |
463ee0b2 |
1051 | val = SvIVx(*++mark); |
1052 | val2 = SvIVx(*++mark); |
a0d0e21e |
1053 | tot = sp - mark; |
79072805 |
1054 | while (++mark <= sp) { |
463ee0b2 |
1055 | if (chown(SvPVx(*mark, na),val,val2)) |
a687059c |
1056 | tot--; |
1057 | } |
1058 | } |
1059 | break; |
b1248f16 |
1060 | #endif |
fe14fcc3 |
1061 | #ifdef HAS_KILL |
79072805 |
1062 | case OP_KILL: |
1063 | TAINT_PROPER("kill"); |
463ee0b2 |
1064 | s = SvPVx(*++mark, na); |
79072805 |
1065 | tot = sp - mark; |
1066 | if (isUPPER(*s)) { |
1067 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1068 | s += 3; |
1069 | if (!(val = whichsig(s))) |
463ee0b2 |
1070 | croak("Unrecognized signal name \"%s\"",s); |
79072805 |
1071 | } |
1072 | else |
463ee0b2 |
1073 | val = SvIVx(*mark); |
3595fcef |
1074 | #ifdef VMS |
1075 | /* kill() doesn't do process groups (job trees?) under VMS */ |
1076 | if (val < 0) val = -val; |
1077 | if (val == SIGKILL) { |
1078 | # include <starlet.h> |
1079 | /* Use native sys$delprc() to insure that target process is |
1080 | * deleted; supervisor-mode images don't pay attention to |
1081 | * CRTL's emulation of Unix-style signals and kill() |
1082 | */ |
1083 | while (++mark <= sp) { |
1084 | I32 proc = SvIVx(*mark); |
1085 | register unsigned long int __vmssts; |
1086 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1087 | tot--; |
1088 | switch (__vmssts) { |
1089 | case SS$_NONEXPR: |
1090 | case SS$_NOSUCHNODE: |
1091 | SETERRNO(ESRCH,__vmssts); |
1092 | break; |
1093 | case SS$_NOPRIV: |
1094 | SETERRNO(EPERM,__vmssts); |
1095 | break; |
1096 | default: |
1097 | SETERRNO(EVMSERR,__vmssts); |
1098 | } |
1099 | } |
1100 | } |
1101 | break; |
1102 | } |
1103 | #endif |
79072805 |
1104 | if (val < 0) { |
1105 | val = -val; |
1106 | while (++mark <= sp) { |
463ee0b2 |
1107 | I32 proc = SvIVx(*mark); |
fe14fcc3 |
1108 | #ifdef HAS_KILLPG |
79072805 |
1109 | if (killpg(proc,val)) /* BSD */ |
a687059c |
1110 | #else |
79072805 |
1111 | if (kill(-proc,val)) /* SYSV */ |
a687059c |
1112 | #endif |
79072805 |
1113 | tot--; |
a687059c |
1114 | } |
79072805 |
1115 | } |
1116 | else { |
1117 | while (++mark <= sp) { |
463ee0b2 |
1118 | if (kill(SvIVx(*mark),val)) |
79072805 |
1119 | tot--; |
a687059c |
1120 | } |
1121 | } |
1122 | break; |
b1248f16 |
1123 | #endif |
79072805 |
1124 | case OP_UNLINK: |
1125 | TAINT_PROPER("unlink"); |
1126 | tot = sp - mark; |
1127 | while (++mark <= sp) { |
463ee0b2 |
1128 | s = SvPVx(*mark, na); |
a687059c |
1129 | if (euid || unsafe) { |
1130 | if (UNLINK(s)) |
1131 | tot--; |
1132 | } |
1133 | else { /* don't let root wipe out directories without -U */ |
fe14fcc3 |
1134 | #ifdef HAS_LSTAT |
c623bd54 |
1135 | if (lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c |
1136 | #else |
a0d0e21e |
1137 | if (Stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c |
1138 | #endif |
a687059c |
1139 | tot--; |
1140 | else { |
1141 | if (UNLINK(s)) |
1142 | tot--; |
1143 | } |
1144 | } |
1145 | } |
1146 | break; |
a0d0e21e |
1147 | #ifdef HAS_UTIME |
79072805 |
1148 | case OP_UTIME: |
1149 | TAINT_PROPER("utime"); |
1150 | if (sp - mark > 2) { |
748a9306 |
1151 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 |
1152 | struct utimbuf utbuf; |
1153 | #else |
a687059c |
1154 | struct { |
663a0e37 |
1155 | long actime; |
1156 | long modtime; |
a687059c |
1157 | } utbuf; |
663a0e37 |
1158 | #endif |
a687059c |
1159 | |
afd9f252 |
1160 | Zero(&utbuf, sizeof utbuf, char); |
463ee0b2 |
1161 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1162 | utbuf.modtime = SvIVx(*++mark); /* time modified */ |
79072805 |
1163 | tot = sp - mark; |
1164 | while (++mark <= sp) { |
463ee0b2 |
1165 | if (utime(SvPVx(*mark, na),&utbuf)) |
a687059c |
1166 | tot--; |
1167 | } |
a687059c |
1168 | } |
1169 | else |
79072805 |
1170 | tot = 0; |
a687059c |
1171 | break; |
a0d0e21e |
1172 | #endif |
a687059c |
1173 | } |
1174 | return tot; |
1175 | } |
1176 | |
1177 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
a0d0e21e |
1178 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 |
1179 | I32 |
a687059c |
1180 | cando(bit, effective, statbufp) |
79072805 |
1181 | I32 bit; |
1182 | I32 effective; |
a687059c |
1183 | register struct stat *statbufp; |
1184 | { |
bee1dbe2 |
1185 | #ifdef DOSISH |
fe14fcc3 |
1186 | /* [Comments and code from Len Reed] |
1187 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write |
1188 | * to write-protected files. The execute permission bit is set |
1189 | * by the Miscrosoft C library stat() function for the following: |
1190 | * .exe files |
1191 | * .com files |
1192 | * .bat files |
1193 | * directories |
1194 | * All files and directories are readable. |
1195 | * Directories and special files, e.g. "CON", cannot be |
1196 | * write-protected. |
1197 | * [Comment by Tom Dinger -- a directory can have the write-protect |
1198 | * bit set in the file system, but DOS permits changes to |
1199 | * the directory anyway. In addition, all bets are off |
1200 | * here for networked software, such as Novell and |
1201 | * Sun's PC-NFS.] |
1202 | */ |
1203 | |
bee1dbe2 |
1204 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1205 | * too so it will actually look into the files for magic numbers |
1206 | */ |
fe14fcc3 |
1207 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1208 | |
1209 | #else /* ! MSDOS */ |
a687059c |
1210 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 |
1211 | if (bit == S_IXUSR) { |
1212 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c |
1213 | return TRUE; |
1214 | } |
1215 | else |
1216 | return TRUE; /* root reads and writes anything */ |
1217 | return FALSE; |
1218 | } |
1219 | if (statbufp->st_uid == (effective ? euid : uid) ) { |
1220 | if (statbufp->st_mode & bit) |
1221 | return TRUE; /* ok as "user" */ |
1222 | } |
79072805 |
1223 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c |
1224 | if (statbufp->st_mode & bit >> 3) |
1225 | return TRUE; /* ok as "group" */ |
1226 | } |
1227 | else if (statbufp->st_mode & bit >> 6) |
1228 | return TRUE; /* ok as "other" */ |
1229 | return FALSE; |
fe14fcc3 |
1230 | #endif /* ! MSDOS */ |
a687059c |
1231 | } |
a0d0e21e |
1232 | #endif /* ! VMS */ |
a687059c |
1233 | |
79072805 |
1234 | I32 |
a687059c |
1235 | ingroup(testgid,effective) |
79072805 |
1236 | I32 testgid; |
1237 | I32 effective; |
a687059c |
1238 | { |
1239 | if (testgid == (effective ? egid : gid)) |
1240 | return TRUE; |
fe14fcc3 |
1241 | #ifdef HAS_GETGROUPS |
a687059c |
1242 | #ifndef NGROUPS |
1243 | #define NGROUPS 32 |
1244 | #endif |
1245 | { |
a0d0e21e |
1246 | Groups_t gary[NGROUPS]; |
79072805 |
1247 | I32 anum; |
a687059c |
1248 | |
1249 | anum = getgroups(NGROUPS,gary); |
1250 | while (--anum >= 0) |
1251 | if (gary[anum] == testgid) |
1252 | return TRUE; |
1253 | } |
1254 | #endif |
1255 | return FALSE; |
1256 | } |
c2ab57d4 |
1257 | |
fe14fcc3 |
1258 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
1259 | |
79072805 |
1260 | I32 |
1261 | do_ipcget(optype, mark, sp) |
1262 | I32 optype; |
1263 | SV **mark; |
1264 | SV **sp; |
c2ab57d4 |
1265 | { |
c2ab57d4 |
1266 | key_t key; |
79072805 |
1267 | I32 n, flags; |
c2ab57d4 |
1268 | |
463ee0b2 |
1269 | key = (key_t)SvNVx(*++mark); |
1270 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); |
1271 | flags = SvIVx(*++mark); |
748a9306 |
1272 | SETERRNO(0,0); |
c2ab57d4 |
1273 | switch (optype) |
1274 | { |
fe14fcc3 |
1275 | #ifdef HAS_MSG |
79072805 |
1276 | case OP_MSGGET: |
c2ab57d4 |
1277 | return msgget(key, flags); |
e5d73d77 |
1278 | #endif |
fe14fcc3 |
1279 | #ifdef HAS_SEM |
79072805 |
1280 | case OP_SEMGET: |
c2ab57d4 |
1281 | return semget(key, n, flags); |
e5d73d77 |
1282 | #endif |
fe14fcc3 |
1283 | #ifdef HAS_SHM |
79072805 |
1284 | case OP_SHMGET: |
c2ab57d4 |
1285 | return shmget(key, n, flags); |
e5d73d77 |
1286 | #endif |
fe14fcc3 |
1287 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1288 | default: |
463ee0b2 |
1289 | croak("%s not implemented", op_name[optype]); |
e5d73d77 |
1290 | #endif |
c2ab57d4 |
1291 | } |
1292 | return -1; /* should never happen */ |
1293 | } |
1294 | |
79072805 |
1295 | I32 |
1296 | do_ipcctl(optype, mark, sp) |
1297 | I32 optype; |
1298 | SV **mark; |
1299 | SV **sp; |
c2ab57d4 |
1300 | { |
79072805 |
1301 | SV *astr; |
c2ab57d4 |
1302 | char *a; |
a0d0e21e |
1303 | I32 id, n, cmd, infosize, getinfo; |
1304 | I32 ret = -1; |
c2ab57d4 |
1305 | |
463ee0b2 |
1306 | id = SvIVx(*++mark); |
1307 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
1308 | cmd = SvIVx(*++mark); |
79072805 |
1309 | astr = *++mark; |
c2ab57d4 |
1310 | infosize = 0; |
1311 | getinfo = (cmd == IPC_STAT); |
1312 | |
1313 | switch (optype) |
1314 | { |
fe14fcc3 |
1315 | #ifdef HAS_MSG |
79072805 |
1316 | case OP_MSGCTL: |
c2ab57d4 |
1317 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1318 | infosize = sizeof(struct msqid_ds); |
1319 | break; |
e5d73d77 |
1320 | #endif |
fe14fcc3 |
1321 | #ifdef HAS_SHM |
79072805 |
1322 | case OP_SHMCTL: |
c2ab57d4 |
1323 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1324 | infosize = sizeof(struct shmid_ds); |
1325 | break; |
e5d73d77 |
1326 | #endif |
fe14fcc3 |
1327 | #ifdef HAS_SEM |
79072805 |
1328 | case OP_SEMCTL: |
c2ab57d4 |
1329 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1330 | infosize = sizeof(struct semid_ds); |
1331 | else if (cmd == GETALL || cmd == SETALL) |
1332 | { |
1333 | struct semid_ds semds; |
1334 | if (semctl(id, 0, IPC_STAT, &semds) == -1) |
1335 | return -1; |
1336 | getinfo = (cmd == GETALL); |
6e21c824 |
1337 | infosize = semds.sem_nsems * sizeof(short); |
1338 | /* "short" is technically wrong but much more portable |
1339 | than guessing about u_?short(_t)? */ |
c2ab57d4 |
1340 | } |
1341 | break; |
e5d73d77 |
1342 | #endif |
fe14fcc3 |
1343 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1344 | default: |
463ee0b2 |
1345 | croak("%s not implemented", op_name[optype]); |
e5d73d77 |
1346 | #endif |
c2ab57d4 |
1347 | } |
1348 | |
1349 | if (infosize) |
1350 | { |
a0d0e21e |
1351 | STRLEN len; |
c2ab57d4 |
1352 | if (getinfo) |
1353 | { |
a0d0e21e |
1354 | SvPV_force(astr, len); |
1355 | a = SvGROW(astr, infosize+1); |
c2ab57d4 |
1356 | } |
1357 | else |
1358 | { |
463ee0b2 |
1359 | a = SvPV(astr, len); |
1360 | if (len != infosize) |
1361 | croak("Bad arg length for %s, is %d, should be %d", |
1362 | op_name[optype], len, infosize); |
c2ab57d4 |
1363 | } |
1364 | } |
1365 | else |
1366 | { |
463ee0b2 |
1367 | I32 i = SvIV(astr); |
c2ab57d4 |
1368 | a = (char *)i; /* ouch */ |
1369 | } |
748a9306 |
1370 | SETERRNO(0,0); |
c2ab57d4 |
1371 | switch (optype) |
1372 | { |
fe14fcc3 |
1373 | #ifdef HAS_MSG |
79072805 |
1374 | case OP_MSGCTL: |
bee1dbe2 |
1375 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 |
1376 | break; |
e5d73d77 |
1377 | #endif |
fe14fcc3 |
1378 | #ifdef HAS_SEM |
79072805 |
1379 | case OP_SEMCTL: |
1380 | ret = semctl(id, n, cmd, (struct semid_ds *)a); |
c2ab57d4 |
1381 | break; |
e5d73d77 |
1382 | #endif |
fe14fcc3 |
1383 | #ifdef HAS_SHM |
79072805 |
1384 | case OP_SHMCTL: |
bee1dbe2 |
1385 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 |
1386 | break; |
e5d73d77 |
1387 | #endif |
c2ab57d4 |
1388 | } |
1389 | if (getinfo && ret >= 0) { |
79072805 |
1390 | SvCUR_set(astr, infosize); |
1391 | *SvEND(astr) = '\0'; |
a0d0e21e |
1392 | SvSETMAGIC(astr); |
c2ab57d4 |
1393 | } |
1394 | return ret; |
1395 | } |
1396 | |
79072805 |
1397 | I32 |
1398 | do_msgsnd(mark, sp) |
1399 | SV **mark; |
1400 | SV **sp; |
c2ab57d4 |
1401 | { |
fe14fcc3 |
1402 | #ifdef HAS_MSG |
79072805 |
1403 | SV *mstr; |
c2ab57d4 |
1404 | char *mbuf; |
79072805 |
1405 | I32 id, msize, flags; |
463ee0b2 |
1406 | STRLEN len; |
c2ab57d4 |
1407 | |
463ee0b2 |
1408 | id = SvIVx(*++mark); |
79072805 |
1409 | mstr = *++mark; |
463ee0b2 |
1410 | flags = SvIVx(*++mark); |
1411 | mbuf = SvPV(mstr, len); |
1412 | if ((msize = len - sizeof(long)) < 0) |
1413 | croak("Arg too short for msgsnd"); |
748a9306 |
1414 | SETERRNO(0,0); |
bee1dbe2 |
1415 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 |
1416 | #else |
463ee0b2 |
1417 | croak("msgsnd not implemented"); |
e5d73d77 |
1418 | #endif |
c2ab57d4 |
1419 | } |
1420 | |
79072805 |
1421 | I32 |
1422 | do_msgrcv(mark, sp) |
1423 | SV **mark; |
1424 | SV **sp; |
c2ab57d4 |
1425 | { |
fe14fcc3 |
1426 | #ifdef HAS_MSG |
79072805 |
1427 | SV *mstr; |
c2ab57d4 |
1428 | char *mbuf; |
1429 | long mtype; |
79072805 |
1430 | I32 id, msize, flags, ret; |
463ee0b2 |
1431 | STRLEN len; |
79072805 |
1432 | |
463ee0b2 |
1433 | id = SvIVx(*++mark); |
79072805 |
1434 | mstr = *++mark; |
463ee0b2 |
1435 | msize = SvIVx(*++mark); |
1436 | mtype = (long)SvIVx(*++mark); |
1437 | flags = SvIVx(*++mark); |
ed6116ce |
1438 | if (SvTHINKFIRST(mstr)) { |
1439 | if (SvREADONLY(mstr)) |
1440 | croak("Can't msgrcv to readonly var"); |
1441 | if (SvROK(mstr)) |
1442 | sv_unref(mstr); |
1443 | } |
a0d0e21e |
1444 | SvPV_force(mstr, len); |
1445 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
1446 | |
748a9306 |
1447 | SETERRNO(0,0); |
bee1dbe2 |
1448 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 |
1449 | if (ret >= 0) { |
79072805 |
1450 | SvCUR_set(mstr, sizeof(long)+ret); |
1451 | *SvEND(mstr) = '\0'; |
c2ab57d4 |
1452 | } |
1453 | return ret; |
e5d73d77 |
1454 | #else |
463ee0b2 |
1455 | croak("msgrcv not implemented"); |
e5d73d77 |
1456 | #endif |
c2ab57d4 |
1457 | } |
1458 | |
79072805 |
1459 | I32 |
1460 | do_semop(mark, sp) |
1461 | SV **mark; |
1462 | SV **sp; |
c2ab57d4 |
1463 | { |
fe14fcc3 |
1464 | #ifdef HAS_SEM |
79072805 |
1465 | SV *opstr; |
c2ab57d4 |
1466 | char *opbuf; |
463ee0b2 |
1467 | I32 id; |
1468 | STRLEN opsize; |
c2ab57d4 |
1469 | |
463ee0b2 |
1470 | id = SvIVx(*++mark); |
79072805 |
1471 | opstr = *++mark; |
463ee0b2 |
1472 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 |
1473 | if (opsize < sizeof(struct sembuf) |
1474 | || (opsize % sizeof(struct sembuf)) != 0) { |
748a9306 |
1475 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 |
1476 | return -1; |
1477 | } |
748a9306 |
1478 | SETERRNO(0,0); |
6e21c824 |
1479 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 |
1480 | #else |
463ee0b2 |
1481 | croak("semop not implemented"); |
e5d73d77 |
1482 | #endif |
c2ab57d4 |
1483 | } |
1484 | |
79072805 |
1485 | I32 |
1486 | do_shmio(optype, mark, sp) |
1487 | I32 optype; |
1488 | SV **mark; |
1489 | SV **sp; |
c2ab57d4 |
1490 | { |
fe14fcc3 |
1491 | #ifdef HAS_SHM |
79072805 |
1492 | SV *mstr; |
c2ab57d4 |
1493 | char *mbuf, *shm; |
79072805 |
1494 | I32 id, mpos, msize; |
463ee0b2 |
1495 | STRLEN len; |
c2ab57d4 |
1496 | struct shmid_ds shmds; |
c2ab57d4 |
1497 | |
463ee0b2 |
1498 | id = SvIVx(*++mark); |
79072805 |
1499 | mstr = *++mark; |
463ee0b2 |
1500 | mpos = SvIVx(*++mark); |
1501 | msize = SvIVx(*++mark); |
748a9306 |
1502 | SETERRNO(0,0); |
c2ab57d4 |
1503 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1504 | return -1; |
1505 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { |
748a9306 |
1506 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 |
1507 | return -1; |
1508 | } |
a0d0e21e |
1509 | shm = (Shmat_t)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 |
1510 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1511 | return -1; |
79072805 |
1512 | if (optype == OP_SHMREAD) { |
a0d0e21e |
1513 | SvPV_force(mstr, len); |
1514 | mbuf = SvGROW(mstr, msize+1); |
1515 | |
bee1dbe2 |
1516 | Copy(shm + mpos, mbuf, msize, char); |
79072805 |
1517 | SvCUR_set(mstr, msize); |
1518 | *SvEND(mstr) = '\0'; |
a0d0e21e |
1519 | SvSETMAGIC(mstr); |
c2ab57d4 |
1520 | } |
1521 | else { |
79072805 |
1522 | I32 n; |
c2ab57d4 |
1523 | |
a0d0e21e |
1524 | mbuf = SvPV(mstr, len); |
463ee0b2 |
1525 | if ((n = len) > msize) |
c2ab57d4 |
1526 | n = msize; |
bee1dbe2 |
1527 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 |
1528 | if (n < msize) |
bee1dbe2 |
1529 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 |
1530 | } |
1531 | return shmdt(shm); |
e5d73d77 |
1532 | #else |
463ee0b2 |
1533 | croak("shm I/O not implemented"); |
e5d73d77 |
1534 | #endif |
c2ab57d4 |
1535 | } |
1536 | |
fe14fcc3 |
1537 | #endif /* SYSV IPC */ |