Commit | Line | Data |
39e571d4 |
1 | #include <libc/stubs.h> |
2 | #include <io.h> |
3 | #include <errno.h> |
4 | #include <stdio.h> |
5 | #include <stdlib.h> |
6 | #include <string.h> |
7 | #include <unistd.h> |
8 | #include <libc/file.h> |
9 | #include <process.h> |
10 | #include <fcntl.h> |
11 | #include <glob.h> |
12 | #include <sys/fsext.h> |
13 | #include <crt0.h> |
14 | #include "EXTERN.h" |
15 | #include "perl.h" |
16 | #include "XSUB.h" |
17 | |
9731c6ca |
18 | /* hold file pointer, command, mode, and the status of the command */ |
39e571d4 |
19 | struct pipe_list { |
20 | FILE *fp; |
39e571d4 |
21 | int exit_status; |
39e571d4 |
22 | struct pipe_list *next; |
9731c6ca |
23 | char *command, mode; |
39e571d4 |
24 | }; |
25 | |
26 | /* static, global list pointer */ |
27 | static struct pipe_list *pl = NULL; |
28 | |
29 | FILE * |
30 | popen (const char *cm, const char *md) /* program name, pipe mode */ |
31 | { |
32 | struct pipe_list *l1; |
9731c6ca |
33 | int fd; |
34 | char *temp_name=NULL; |
39e571d4 |
35 | |
36 | /* make new node */ |
9731c6ca |
37 | if ((l1 = (struct pipe_list *) malloc (sizeof (*l1))) |
38 | && (temp_name = malloc (L_tmpnam)) && tmpnam (temp_name)) |
39e571d4 |
39 | { |
9731c6ca |
40 | l1->fp = NULL; |
41 | l1->command = NULL; |
42 | l1->next = pl; |
43 | l1->exit_status = -1; |
44 | l1->mode = md[0]; |
45 | |
39e571d4 |
46 | /* if caller wants to read */ |
9731c6ca |
47 | if (md[0] == 'r' && (fd = dup (fileno (stdout))) >= 0) |
39e571d4 |
48 | { |
9731c6ca |
49 | if ((l1->fp = freopen (temp_name, "wb", stdout))) |
39e571d4 |
50 | { |
9731c6ca |
51 | l1->exit_status = system (cm); |
52 | if (dup2 (fd, fileno (stdout)) >= 0) |
53 | l1->fp = fopen (temp_name, md); |
39e571d4 |
54 | } |
9731c6ca |
55 | close (fd); |
56 | } |
57 | /* if caller wants to write */ |
58 | else if (md[0] == 'w' && (l1->command = malloc (1 + strlen (cm)))) |
59 | { |
60 | strcpy (l1->command, cm); |
61 | l1->fp = fopen (temp_name, md); |
62 | } |
63 | |
64 | if (l1->fp) |
65 | { |
66 | l1->fp->_flag |= _IORMONCL; /* remove on close */ |
67 | l1->fp->_name_to_remove = temp_name; |
68 | return (pl = l1)->fp; |
39e571d4 |
69 | } |
9731c6ca |
70 | free (l1->command); |
39e571d4 |
71 | } |
9731c6ca |
72 | free (temp_name); |
73 | free (l1); |
74 | return NULL; |
39e571d4 |
75 | } |
76 | |
77 | int |
78 | pclose (FILE *pp) |
79 | { |
9731c6ca |
80 | struct pipe_list *l1, **l2; /* list pointers */ |
81 | int retval=-1; /* function return value */ |
39e571d4 |
82 | |
9731c6ca |
83 | for (l2 = &pl; *l2 && (*l2)->fp != pp; l2 = &((*l2)->next)) |
84 | ; |
85 | if (!(l1 = *l2)) |
86 | return retval; |
87 | *l2 = l1->next; |
39e571d4 |
88 | |
9731c6ca |
89 | /* if pipe was opened to write */ |
90 | if (l1->mode == 'w') |
39e571d4 |
91 | { |
9731c6ca |
92 | int fd; |
93 | fflush (l1->fp); |
94 | close (fileno (l1->fp)); |
39e571d4 |
95 | |
9731c6ca |
96 | if ((fd = dup (fileno (stdin))) >= 0 |
97 | && (freopen (l1->fp->_name_to_remove, "rb", stdin))) |
39e571d4 |
98 | { |
9731c6ca |
99 | retval = system (l1->command); |
100 | dup2 (fd, fileno (stdin)); |
39e571d4 |
101 | } |
9731c6ca |
102 | close (fd); |
103 | free (l1->command); |
39e571d4 |
104 | } |
9731c6ca |
105 | else |
106 | /* if pipe was opened to read, return the exit status we saved */ |
107 | retval = l1->exit_status; |
39e571d4 |
108 | |
9731c6ca |
109 | fclose (l1->fp); /* this removes the temp file */ |
110 | free (l1); |
111 | return retval; /* retval==0 ? OK : ERROR */ |
39e571d4 |
112 | } |
113 | |
39e571d4 |
114 | /**/ |
115 | |
116 | #define EXECF_SPAWN 0 |
117 | #define EXECF_EXEC 1 |
118 | |
119 | static int |
120 | convretcode (int rc,char *prog,int fl) |
121 | { |
6b88bc9c |
122 | if (rc < 0 && PL_dowarn) |
39e571d4 |
123 | warn ("Can't %s \"%s\": %s",fl ? "exec" : "spawn",prog,Strerror (errno)); |
124 | if (rc > 0) |
125 | return rc <<= 8; |
126 | if (rc < 0) |
127 | return 255 << 8; |
128 | return 0; |
129 | } |
130 | |
131 | int |
132 | do_aspawn (SV *really,SV **mark,SV **sp) |
133 | { |
134 | dTHR; |
135 | int rc; |
136 | char **a,*tmps,**argv; |
2d8e6c8d |
137 | STRLEN n_a; |
39e571d4 |
138 | |
139 | if (sp<=mark) |
140 | return -1; |
141 | a=argv=(char**) alloca ((sp-mark+3)*sizeof (char*)); |
142 | |
143 | while (++mark <= sp) |
144 | if (*mark) |
2d8e6c8d |
145 | *a++ = SvPVx(*mark, n_a); |
39e571d4 |
146 | else |
147 | *a++ = ""; |
148 | *a = Nullch; |
149 | |
150 | if (argv[0][0] != '/' && argv[0][0] != '\\' |
151 | && !(argv[0][0] && argv[0][1] == ':' |
152 | && (argv[0][2] == '/' || argv[0][2] != '\\')) |
153 | ) /* will swawnvp use PATH? */ |
154 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
155 | |
2d8e6c8d |
156 | if (really && *(tmps = SvPV(really, n_a))) |
39e571d4 |
157 | rc=spawnvp (P_WAIT,tmps,argv); |
158 | else |
159 | rc=spawnvp (P_WAIT,argv[0],argv); |
160 | |
161 | return convretcode (rc,argv[0],EXECF_SPAWN); |
162 | } |
163 | |
164 | #define EXTRA "\x00\x00\x00\x00\x00\x00" |
165 | |
166 | int |
167 | do_spawn2 (char *cmd,int execf) |
168 | { |
169 | char **a,*s,*shell,*metachars; |
170 | int rc,unixysh; |
171 | |
172 | if ((shell=getenv("SHELL"))==NULL && (shell=getenv("COMSPEC"))==NULL) |
173 | shell="c:\\command.com" EXTRA; |
174 | |
175 | unixysh=_is_unixy_shell (shell); |
176 | metachars=unixysh ? "$&*(){}[]'\";\\?>|<~`\n" EXTRA : "*?[|<>\"\\" EXTRA; |
177 | |
178 | while (*cmd && isSPACE(*cmd)) |
179 | cmd++; |
180 | |
181 | if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7])) |
182 | cmd+=5; |
183 | |
184 | /* save an extra exec if possible */ |
185 | /* see if there are shell metacharacters in it */ |
186 | if (strstr (cmd,"...")) |
187 | goto doshell; |
188 | if (unixysh) |
189 | { |
190 | if (*cmd=='.' && isSPACE (cmd[1])) |
191 | goto doshell; |
192 | if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4])) |
193 | goto doshell; |
194 | for (s=cmd; *s && isALPHA (*s); s++) ; /* catch VAR=val gizmo */ |
195 | if (*s=='=') |
196 | goto doshell; |
197 | } |
198 | for (s=cmd; *s; s++) |
199 | if (strchr (metachars,*s)) |
200 | { |
201 | if (*s=='\n' && s[1]=='\0') |
202 | { |
203 | *s='\0'; |
204 | break; |
205 | } |
206 | doshell: |
207 | if (execf==EXECF_EXEC) |
208 | return convretcode (execl (shell,shell,unixysh ? "-c" : "/c",cmd,NULL),cmd,execf); |
209 | return convretcode (system (cmd),cmd,execf); |
210 | } |
211 | |
6b88bc9c |
212 | New (1303,PL_Argv,(s-cmd)/2+2,char*); |
213 | PL_Cmd=savepvn (cmd,s-cmd); |
214 | a=PL_Argv; |
215 | for (s=PL_Cmd; *s;) { |
39e571d4 |
216 | while (*s && isSPACE (*s)) s++; |
217 | if (*s) |
218 | *(a++)=s; |
219 | while (*s && !isSPACE (*s)) s++; |
220 | if (*s) |
221 | *s++='\0'; |
222 | } |
223 | *a=Nullch; |
6b88bc9c |
224 | if (!PL_Argv[0]) |
39e571d4 |
225 | return -1; |
226 | |
227 | if (execf==EXECF_EXEC) |
6b88bc9c |
228 | rc=execvp (PL_Argv[0],PL_Argv); |
39e571d4 |
229 | else |
6b88bc9c |
230 | rc=spawnvp (P_WAIT,PL_Argv[0],PL_Argv); |
231 | return convretcode (rc,PL_Argv[0],execf); |
39e571d4 |
232 | } |
233 | |
234 | int |
235 | do_spawn (char *cmd) |
236 | { |
237 | return do_spawn2 (cmd,EXECF_SPAWN); |
238 | } |
239 | |
240 | bool |
241 | do_exec (char *cmd) |
242 | { |
243 | do_spawn2 (cmd,EXECF_EXEC); |
244 | return FALSE; |
245 | } |
246 | |
247 | /**/ |
248 | |
249 | struct globinfo |
250 | { |
251 | int fd; |
252 | char *matches; |
253 | size_t size; |
254 | }; |
255 | |
256 | #define MAXOPENGLOBS 10 |
257 | |
258 | static struct globinfo myglobs[MAXOPENGLOBS]; |
259 | |
260 | static struct globinfo * |
261 | searchfd (int fd) |
262 | { |
263 | int ic; |
264 | for (ic=0; ic<MAXOPENGLOBS; ic++) |
265 | if (myglobs[ic].fd==fd) |
266 | return myglobs+ic; |
267 | return NULL; |
268 | } |
269 | |
270 | static int |
271 | glob_handler (__FSEXT_Fnumber n,int *rv,va_list args) |
272 | { |
273 | unsigned ic; |
274 | struct globinfo *gi; |
275 | switch (n) |
276 | { |
277 | case __FSEXT_open: |
278 | { |
279 | char *p1,*pattern,*name=va_arg (args,char*); |
280 | STRLEN len; |
281 | glob_t pglob; |
282 | |
283 | if (strnNE (name,"/dev/dosglob/",13)) |
284 | break; |
285 | if ((gi=searchfd (-1)) == NULL) |
286 | break; |
287 | |
288 | pattern=alloca (strlen (name+=13)+1); |
289 | strcpy (pattern,name); |
290 | if (!_USE_LFN) |
291 | strlwr (pattern); |
292 | ic=pglob.gl_pathc=0; |
293 | pglob.gl_pathv=NULL; |
294 | while (pattern) |
295 | { |
296 | if ((p1=strchr (pattern,' '))!=NULL) |
297 | *p1=0; |
298 | glob (pattern,ic,0,&pglob); |
299 | ic=GLOB_APPEND; |
300 | if ((pattern=p1)!=NULL) |
301 | pattern++; |
302 | } |
303 | for (ic=len=0; ic<pglob.gl_pathc; ic++) |
304 | len+=1+strlen (pglob.gl_pathv[ic]); |
305 | if (len) |
306 | { |
307 | if ((gi->matches=p1=(char*) malloc (gi->size=len))==NULL) |
308 | break; |
309 | for (ic=0; ic<pglob.gl_pathc; ic++) |
310 | { |
311 | strcpy (p1,pglob.gl_pathv[ic]); |
312 | p1+=strlen (p1)+1; |
313 | } |
314 | } |
315 | else |
316 | { |
317 | if ((gi->matches=strdup (name))==NULL) |
318 | break; |
319 | gi->size=strlen (name)+1; |
320 | } |
321 | globfree (&pglob); |
322 | gi->fd=*rv=__FSEXT_alloc_fd (glob_handler); |
323 | return 1; |
324 | } |
325 | case __FSEXT_read: |
326 | { |
327 | int fd=va_arg (args,int); |
328 | char *buf=va_arg (args,char*); |
329 | size_t siz=va_arg (args,size_t); |
330 | |
331 | if ((gi=searchfd (fd))==NULL) |
332 | break; |
333 | |
334 | ic=tell (fd); |
335 | if (siz+ic>=gi->size) |
336 | siz=gi->size-ic; |
337 | memcpy (buf,ic+gi->matches,siz); |
338 | lseek (fd,siz,1); |
339 | *rv=siz; |
340 | return 1; |
341 | } |
342 | case __FSEXT_close: |
343 | { |
344 | int fd=va_arg (args,int); |
345 | |
346 | if ((gi=searchfd (fd))==NULL) |
347 | break; |
348 | free (gi->matches); |
349 | gi->fd=-1; |
350 | break; |
351 | } |
352 | default: |
353 | break; |
354 | } |
355 | return 0; |
356 | } |
357 | |
358 | static |
359 | XS(dos_GetCwd) |
360 | { |
361 | dXSARGS; |
362 | |
363 | if (items) |
364 | croak ("Usage: Dos::GetCwd()"); |
365 | { |
366 | char tmp[PATH_MAX+2]; |
367 | ST(0)=sv_newmortal (); |
368 | if (getcwd (tmp,PATH_MAX+1)!=NULL) |
369 | sv_setpv ((SV*)ST(0),tmp); |
370 | } |
371 | XSRETURN (1); |
372 | } |
373 | |
374 | static |
375 | XS(dos_UseLFN) |
376 | { |
377 | dXSARGS; |
378 | XSRETURN_IV (_USE_LFN); |
379 | } |
380 | |
381 | void |
382 | init_os_extras() |
383 | { |
384 | char *file = __FILE__; |
385 | |
386 | dXSUB_SYS; |
387 | |
388 | newXS ("Dos::GetCwd",dos_GetCwd,file); |
389 | newXS ("Dos::UseLFN",dos_UseLFN,file); |
390 | |
391 | /* install my File System Extension for globbing */ |
392 | __FSEXT_add_open_handler (glob_handler); |
393 | memset (myglobs,-1,sizeof (myglobs)); |
394 | } |
395 | |
396 | static char *perlprefix; |
397 | |
398 | #define PERL5 "/perl5" |
399 | |
400 | char *djgpp_pathexp (const char *p) |
401 | { |
402 | static char expp[PATH_MAX]; |
403 | strcpy (expp,perlprefix); |
404 | switch (p[0]) |
405 | { |
406 | case 'B': |
407 | strcat (expp,"/bin"); |
408 | break; |
409 | case 'S': |
410 | strcat (expp,"/lib" PERL5 "/site"); |
411 | break; |
412 | default: |
413 | strcat (expp,"/lib" PERL5); |
414 | break; |
415 | } |
416 | return expp; |
417 | } |
418 | |
419 | void |
420 | Perl_DJGPP_init (int *argcp,char ***argvp) |
421 | { |
422 | char *p; |
423 | |
424 | perlprefix=strdup (**argvp); |
425 | strlwr (perlprefix); |
426 | if ((p=strrchr (perlprefix,'/'))!=NULL) |
427 | { |
428 | *p=0; |
429 | if (strEQ (p-4,"/bin")) |
430 | p[-4]=0; |
431 | } |
432 | else |
433 | strcpy (perlprefix,".."); |
434 | } |
435 | |