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 | { |
122 | if (rc < 0 && dowarn) |
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; |
137 | |
138 | if (sp<=mark) |
139 | return -1; |
140 | a=argv=(char**) alloca ((sp-mark+3)*sizeof (char*)); |
141 | |
142 | while (++mark <= sp) |
143 | if (*mark) |
144 | *a++ = SvPVx(*mark, na); |
145 | else |
146 | *a++ = ""; |
147 | *a = Nullch; |
148 | |
149 | if (argv[0][0] != '/' && argv[0][0] != '\\' |
150 | && !(argv[0][0] && argv[0][1] == ':' |
151 | && (argv[0][2] == '/' || argv[0][2] != '\\')) |
152 | ) /* will swawnvp use PATH? */ |
153 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
154 | |
155 | if (really && *(tmps = SvPV(really, na))) |
156 | rc=spawnvp (P_WAIT,tmps,argv); |
157 | else |
158 | rc=spawnvp (P_WAIT,argv[0],argv); |
159 | |
160 | return convretcode (rc,argv[0],EXECF_SPAWN); |
161 | } |
162 | |
163 | #define EXTRA "\x00\x00\x00\x00\x00\x00" |
164 | |
165 | int |
166 | do_spawn2 (char *cmd,int execf) |
167 | { |
168 | char **a,*s,*shell,*metachars; |
169 | int rc,unixysh; |
170 | |
171 | if ((shell=getenv("SHELL"))==NULL && (shell=getenv("COMSPEC"))==NULL) |
172 | shell="c:\\command.com" EXTRA; |
173 | |
174 | unixysh=_is_unixy_shell (shell); |
175 | metachars=unixysh ? "$&*(){}[]'\";\\?>|<~`\n" EXTRA : "*?[|<>\"\\" EXTRA; |
176 | |
177 | while (*cmd && isSPACE(*cmd)) |
178 | cmd++; |
179 | |
180 | if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7])) |
181 | cmd+=5; |
182 | |
183 | /* save an extra exec if possible */ |
184 | /* see if there are shell metacharacters in it */ |
185 | if (strstr (cmd,"...")) |
186 | goto doshell; |
187 | if (unixysh) |
188 | { |
189 | if (*cmd=='.' && isSPACE (cmd[1])) |
190 | goto doshell; |
191 | if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4])) |
192 | goto doshell; |
193 | for (s=cmd; *s && isALPHA (*s); s++) ; /* catch VAR=val gizmo */ |
194 | if (*s=='=') |
195 | goto doshell; |
196 | } |
197 | for (s=cmd; *s; s++) |
198 | if (strchr (metachars,*s)) |
199 | { |
200 | if (*s=='\n' && s[1]=='\0') |
201 | { |
202 | *s='\0'; |
203 | break; |
204 | } |
205 | doshell: |
206 | if (execf==EXECF_EXEC) |
207 | return convretcode (execl (shell,shell,unixysh ? "-c" : "/c",cmd,NULL),cmd,execf); |
208 | return convretcode (system (cmd),cmd,execf); |
209 | } |
210 | |
211 | New (1303,Argv,(s-cmd)/2+2,char*); |
212 | Cmd=savepvn (cmd,s-cmd); |
213 | a=Argv; |
214 | for (s=Cmd; *s;) { |
215 | while (*s && isSPACE (*s)) s++; |
216 | if (*s) |
217 | *(a++)=s; |
218 | while (*s && !isSPACE (*s)) s++; |
219 | if (*s) |
220 | *s++='\0'; |
221 | } |
222 | *a=Nullch; |
223 | if (!Argv[0]) |
224 | return -1; |
225 | |
226 | if (execf==EXECF_EXEC) |
227 | rc=execvp (Argv[0],Argv); |
228 | else |
229 | rc=spawnvp (P_WAIT,Argv[0],Argv); |
230 | return convretcode (rc,Argv[0],execf); |
231 | } |
232 | |
233 | int |
234 | do_spawn (char *cmd) |
235 | { |
236 | return do_spawn2 (cmd,EXECF_SPAWN); |
237 | } |
238 | |
239 | bool |
240 | do_exec (char *cmd) |
241 | { |
242 | do_spawn2 (cmd,EXECF_EXEC); |
243 | return FALSE; |
244 | } |
245 | |
246 | /**/ |
247 | |
248 | struct globinfo |
249 | { |
250 | int fd; |
251 | char *matches; |
252 | size_t size; |
253 | }; |
254 | |
255 | #define MAXOPENGLOBS 10 |
256 | |
257 | static struct globinfo myglobs[MAXOPENGLOBS]; |
258 | |
259 | static struct globinfo * |
260 | searchfd (int fd) |
261 | { |
262 | int ic; |
263 | for (ic=0; ic<MAXOPENGLOBS; ic++) |
264 | if (myglobs[ic].fd==fd) |
265 | return myglobs+ic; |
266 | return NULL; |
267 | } |
268 | |
269 | static int |
270 | glob_handler (__FSEXT_Fnumber n,int *rv,va_list args) |
271 | { |
272 | unsigned ic; |
273 | struct globinfo *gi; |
274 | switch (n) |
275 | { |
276 | case __FSEXT_open: |
277 | { |
278 | char *p1,*pattern,*name=va_arg (args,char*); |
279 | STRLEN len; |
280 | glob_t pglob; |
281 | |
282 | if (strnNE (name,"/dev/dosglob/",13)) |
283 | break; |
284 | if ((gi=searchfd (-1)) == NULL) |
285 | break; |
286 | |
287 | pattern=alloca (strlen (name+=13)+1); |
288 | strcpy (pattern,name); |
289 | if (!_USE_LFN) |
290 | strlwr (pattern); |
291 | ic=pglob.gl_pathc=0; |
292 | pglob.gl_pathv=NULL; |
293 | while (pattern) |
294 | { |
295 | if ((p1=strchr (pattern,' '))!=NULL) |
296 | *p1=0; |
297 | glob (pattern,ic,0,&pglob); |
298 | ic=GLOB_APPEND; |
299 | if ((pattern=p1)!=NULL) |
300 | pattern++; |
301 | } |
302 | for (ic=len=0; ic<pglob.gl_pathc; ic++) |
303 | len+=1+strlen (pglob.gl_pathv[ic]); |
304 | if (len) |
305 | { |
306 | if ((gi->matches=p1=(char*) malloc (gi->size=len))==NULL) |
307 | break; |
308 | for (ic=0; ic<pglob.gl_pathc; ic++) |
309 | { |
310 | strcpy (p1,pglob.gl_pathv[ic]); |
311 | p1+=strlen (p1)+1; |
312 | } |
313 | } |
314 | else |
315 | { |
316 | if ((gi->matches=strdup (name))==NULL) |
317 | break; |
318 | gi->size=strlen (name)+1; |
319 | } |
320 | globfree (&pglob); |
321 | gi->fd=*rv=__FSEXT_alloc_fd (glob_handler); |
322 | return 1; |
323 | } |
324 | case __FSEXT_read: |
325 | { |
326 | int fd=va_arg (args,int); |
327 | char *buf=va_arg (args,char*); |
328 | size_t siz=va_arg (args,size_t); |
329 | |
330 | if ((gi=searchfd (fd))==NULL) |
331 | break; |
332 | |
333 | ic=tell (fd); |
334 | if (siz+ic>=gi->size) |
335 | siz=gi->size-ic; |
336 | memcpy (buf,ic+gi->matches,siz); |
337 | lseek (fd,siz,1); |
338 | *rv=siz; |
339 | return 1; |
340 | } |
341 | case __FSEXT_close: |
342 | { |
343 | int fd=va_arg (args,int); |
344 | |
345 | if ((gi=searchfd (fd))==NULL) |
346 | break; |
347 | free (gi->matches); |
348 | gi->fd=-1; |
349 | break; |
350 | } |
351 | default: |
352 | break; |
353 | } |
354 | return 0; |
355 | } |
356 | |
357 | static |
358 | XS(dos_GetCwd) |
359 | { |
360 | dXSARGS; |
361 | |
362 | if (items) |
363 | croak ("Usage: Dos::GetCwd()"); |
364 | { |
365 | char tmp[PATH_MAX+2]; |
366 | ST(0)=sv_newmortal (); |
367 | if (getcwd (tmp,PATH_MAX+1)!=NULL) |
368 | sv_setpv ((SV*)ST(0),tmp); |
369 | } |
370 | XSRETURN (1); |
371 | } |
372 | |
373 | static |
374 | XS(dos_UseLFN) |
375 | { |
376 | dXSARGS; |
377 | XSRETURN_IV (_USE_LFN); |
378 | } |
379 | |
380 | void |
381 | init_os_extras() |
382 | { |
383 | char *file = __FILE__; |
384 | |
385 | dXSUB_SYS; |
386 | |
387 | newXS ("Dos::GetCwd",dos_GetCwd,file); |
388 | newXS ("Dos::UseLFN",dos_UseLFN,file); |
389 | |
390 | /* install my File System Extension for globbing */ |
391 | __FSEXT_add_open_handler (glob_handler); |
392 | memset (myglobs,-1,sizeof (myglobs)); |
393 | } |
394 | |
395 | static char *perlprefix; |
396 | |
397 | #define PERL5 "/perl5" |
398 | |
399 | char *djgpp_pathexp (const char *p) |
400 | { |
401 | static char expp[PATH_MAX]; |
402 | strcpy (expp,perlprefix); |
403 | switch (p[0]) |
404 | { |
405 | case 'B': |
406 | strcat (expp,"/bin"); |
407 | break; |
408 | case 'S': |
409 | strcat (expp,"/lib" PERL5 "/site"); |
410 | break; |
411 | default: |
412 | strcat (expp,"/lib" PERL5); |
413 | break; |
414 | } |
415 | return expp; |
416 | } |
417 | |
418 | void |
419 | Perl_DJGPP_init (int *argcp,char ***argvp) |
420 | { |
421 | char *p; |
422 | |
423 | perlprefix=strdup (**argvp); |
424 | strlwr (perlprefix); |
425 | if ((p=strrchr (perlprefix,'/'))!=NULL) |
426 | { |
427 | *p=0; |
428 | if (strEQ (p-4,"/bin")) |
429 | p[-4]=0; |
430 | } |
431 | else |
432 | strcpy (perlprefix,".."); |
433 | } |
434 | |