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 | |
76121258 |
46 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
47 | #include <signal.h> |
48 | #endif |
49 | |
50 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
51 | #ifdef I_UNISTD |
52 | # include <unistd.h> |
53 | #endif |
54 | |
232e078e |
55 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
56 | # include <sys/socket.h> |
57 | # include <netdb.h> |
58 | # ifndef ENOTSOCK |
59 | # ifdef I_NET_ERRNO |
60 | # include <net/errno.h> |
61 | # endif |
62 | # endif |
63 | #endif |
64 | |
a687059c |
65 | bool |
c07a80fd |
66 | do_open(gv,name,len,as_raw,rawmode,rawperm,supplied_fp) |
79072805 |
67 | GV *gv; |
a687059c |
68 | register char *name; |
79072805 |
69 | I32 len; |
c07a80fd |
70 | int as_raw; |
71 | int rawmode, rawperm; |
760ac839 |
72 | PerlIO *supplied_fp; |
a687059c |
73 | { |
a0d0e21e |
74 | register IO *io = GvIOn(gv); |
760ac839 |
75 | PerlIO *saveifp = Nullfp; |
76 | PerlIO *saveofp = Nullfp; |
6e21c824 |
77 | char savetype = ' '; |
c07a80fd |
78 | int writing = 0; |
760ac839 |
79 | PerlIO *fp; |
c07a80fd |
80 | int fd; |
81 | int result; |
a687059c |
82 | |
a687059c |
83 | forkprocess = 1; /* assume true if no fork */ |
c07a80fd |
84 | |
a0d0e21e |
85 | if (IoIFP(io)) { |
760ac839 |
86 | fd = PerlIO_fileno(IoIFP(io)); |
8990e307 |
87 | if (IoTYPE(io) == '-') |
c2ab57d4 |
88 | result = 0; |
6e21c824 |
89 | else if (fd <= maxsysfd) { |
8990e307 |
90 | saveifp = IoIFP(io); |
91 | saveofp = IoOFP(io); |
92 | savetype = IoTYPE(io); |
6e21c824 |
93 | result = 0; |
94 | } |
8990e307 |
95 | else if (IoTYPE(io) == '|') |
96 | result = my_pclose(IoIFP(io)); |
97 | else if (IoIFP(io) != IoOFP(io)) { |
98 | if (IoOFP(io)) { |
760ac839 |
99 | result = PerlIO_close(IoOFP(io)); |
100 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
101 | } |
102 | else |
760ac839 |
103 | result = PerlIO_close(IoIFP(io)); |
a687059c |
104 | } |
a687059c |
105 | else |
760ac839 |
106 | result = PerlIO_close(IoIFP(io)); |
6e21c824 |
107 | if (result == EOF && fd > maxsysfd) |
760ac839 |
108 | PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n", |
79072805 |
109 | GvENAME(gv)); |
8990e307 |
110 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c |
111 | } |
c07a80fd |
112 | |
113 | if (as_raw) { |
114 | result = rawmode & 3; |
115 | IoTYPE(io) = "<>++"[result]; |
116 | writing = (result > 0); |
117 | fd = open(name, rawmode, rawperm); |
118 | if (fd == -1) |
119 | fp = NULL; |
120 | else { |
360e5741 |
121 | char *fpmode; |
122 | if (result == 0) |
123 | fpmode = "r"; |
124 | #ifdef O_APPEND |
125 | else if (rawmode & O_APPEND) |
126 | fpmode = (result == 1) ? "a" : "a+"; |
127 | #endif |
128 | else |
129 | fpmode = (result == 1) ? "w" : "r+"; |
130 | fp = PerlIO_fdopen(fd, fpmode); |
c07a80fd |
131 | if (!fp) |
132 | close(fd); |
133 | } |
a687059c |
134 | } |
c07a80fd |
135 | else { |
136 | char *myname; |
137 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
138 | int dodup; |
139 | |
140 | myname = savepvn(name, len); |
141 | SAVEFREEPV(myname); |
142 | name = myname; |
143 | while (len && isSPACE(name[len-1])) |
144 | name[--len] = '\0'; |
145 | |
146 | mode[0] = mode[1] = mode[2] = '\0'; |
147 | IoTYPE(io) = *name; |
148 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ |
149 | mode[1] = *name++; |
150 | --len; |
151 | writing = 1; |
a687059c |
152 | } |
c07a80fd |
153 | |
154 | if (*name == '|') { |
155 | /*SUPPRESS 530*/ |
156 | for (name++; isSPACE(*name); name++) ; |
157 | if (strNE(name,"-")) |
158 | TAINT_ENV(); |
159 | TAINT_PROPER("piped open"); |
160 | if (dowarn && name[strlen(name)-1] == '|') |
161 | warn("Can't do bidirectional pipe"); |
162 | fp = my_popen(name,"w"); |
163 | writing = 1; |
164 | } |
165 | else if (*name == '>') { |
166 | TAINT_PROPER("open"); |
bf38876a |
167 | name++; |
c07a80fd |
168 | if (*name == '>') { |
169 | mode[0] = IoTYPE(io) = 'a'; |
bf38876a |
170 | name++; |
a0d0e21e |
171 | } |
c07a80fd |
172 | else |
173 | mode[0] = 'w'; |
174 | writing = 1; |
175 | |
176 | if (*name == '&') { |
177 | duplicity: |
178 | dodup = 1; |
179 | name++; |
180 | if (*name == '=') { |
181 | dodup = 0; |
a0d0e21e |
182 | name++; |
c07a80fd |
183 | } |
184 | if (!*name && supplied_fp) |
185 | fp = supplied_fp; |
a0d0e21e |
186 | else { |
c07a80fd |
187 | /*SUPPRESS 530*/ |
188 | for (; isSPACE(*name); name++) ; |
189 | if (isDIGIT(*name)) |
190 | fd = atoi(name); |
191 | else { |
192 | IO* thatio; |
193 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); |
194 | thatio = GvIO(gv); |
195 | if (!thatio) { |
6e21c824 |
196 | #ifdef EINVAL |
c07a80fd |
197 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 |
198 | #endif |
c07a80fd |
199 | goto say_false; |
200 | } |
201 | if (IoIFP(thatio)) { |
760ac839 |
202 | fd = PerlIO_fileno(IoIFP(thatio)); |
c07a80fd |
203 | if (IoTYPE(thatio) == 's') |
204 | IoTYPE(io) = 's'; |
205 | } |
206 | else |
207 | fd = -1; |
a0d0e21e |
208 | } |
fec02dd3 |
209 | if (dodup) |
c07a80fd |
210 | fd = dup(fd); |
760ac839 |
211 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd |
212 | if (dodup) |
213 | close(fd); |
517844ec |
214 | } |
c07a80fd |
215 | } |
bf38876a |
216 | } |
c07a80fd |
217 | else { |
218 | /*SUPPRESS 530*/ |
219 | for (; isSPACE(*name); name++) ; |
220 | if (strEQ(name,"-")) { |
760ac839 |
221 | fp = PerlIO_stdout(); |
c07a80fd |
222 | IoTYPE(io) = '-'; |
223 | } |
224 | else { |
760ac839 |
225 | fp = PerlIO_open(name,mode); |
c07a80fd |
226 | } |
bf38876a |
227 | } |
228 | } |
c07a80fd |
229 | else if (*name == '<') { |
230 | /*SUPPRESS 530*/ |
231 | for (name++; isSPACE(*name); name++) ; |
bf38876a |
232 | mode[0] = 'r'; |
bf38876a |
233 | if (*name == '&') |
234 | goto duplicity; |
a687059c |
235 | if (strEQ(name,"-")) { |
760ac839 |
236 | fp = PerlIO_stdin(); |
8990e307 |
237 | IoTYPE(io) = '-'; |
a687059c |
238 | } |
bf38876a |
239 | else |
760ac839 |
240 | fp = PerlIO_open(name,mode); |
a687059c |
241 | } |
242 | else if (name[len-1] == '|') { |
a687059c |
243 | name[--len] = '\0'; |
99b89507 |
244 | while (len && isSPACE(name[len-1])) |
a687059c |
245 | name[--len] = '\0'; |
99b89507 |
246 | /*SUPPRESS 530*/ |
247 | for (; isSPACE(*name); name++) ; |
79072805 |
248 | if (strNE(name,"-")) |
249 | TAINT_ENV(); |
250 | TAINT_PROPER("piped open"); |
251 | fp = my_popen(name,"r"); |
8990e307 |
252 | IoTYPE(io) = '|'; |
a687059c |
253 | } |
254 | else { |
8990e307 |
255 | IoTYPE(io) = '<'; |
99b89507 |
256 | /*SUPPRESS 530*/ |
257 | for (; isSPACE(*name); name++) ; |
a687059c |
258 | if (strEQ(name,"-")) { |
760ac839 |
259 | fp = PerlIO_stdin(); |
8990e307 |
260 | IoTYPE(io) = '-'; |
a687059c |
261 | } |
262 | else |
760ac839 |
263 | fp = PerlIO_open(name,"r"); |
a687059c |
264 | } |
265 | } |
bee1dbe2 |
266 | if (!fp) { |
8990e307 |
267 | if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n')) |
bee1dbe2 |
268 | warn(warn_nl, "open"); |
6e21c824 |
269 | goto say_false; |
bee1dbe2 |
270 | } |
8990e307 |
271 | if (IoTYPE(io) && |
272 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { |
760ac839 |
273 | if (Fstat(PerlIO_fileno(fp),&statbuf) < 0) { |
274 | (void)PerlIO_close(fp); |
6e21c824 |
275 | goto say_false; |
a687059c |
276 | } |
1462b684 |
277 | if (S_ISSOCK(statbuf.st_mode)) |
8990e307 |
278 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 |
279 | #ifdef HAS_SOCKET |
280 | else if ( |
c623bd54 |
281 | #ifdef S_IFMT |
99b89507 |
282 | !(statbuf.st_mode & S_IFMT) |
283 | #else |
284 | !statbuf.st_mode |
285 | #endif |
286 | ) { |
a0d0e21e |
287 | int buflen = sizeof tokenbuf; |
760ac839 |
288 | if (getsockname(PerlIO_fileno(fp), (struct sockaddr *)tokenbuf, &buflen) >= 0 |
bee1dbe2 |
289 | || errno != ENOTSOCK) |
8990e307 |
290 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 |
291 | /* but some return 0 for streams too, sigh */ |
292 | } |
bf38876a |
293 | #endif |
a687059c |
294 | } |
6e21c824 |
295 | if (saveifp) { /* must use old fp? */ |
760ac839 |
296 | fd = PerlIO_fileno(saveifp); |
6e21c824 |
297 | if (saveofp) { |
760ac839 |
298 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 |
299 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 |
300 | PerlIO_close(saveofp); |
99b89507 |
301 | if (fd > 2) |
302 | Safefree(saveofp); |
6e21c824 |
303 | } |
304 | } |
760ac839 |
305 | if (fd != PerlIO_fileno(fp)) { |
bee1dbe2 |
306 | int pid; |
79072805 |
307 | SV *sv; |
bee1dbe2 |
308 | |
760ac839 |
309 | dup2(PerlIO_fileno(fp), fd); |
310 | sv = *av_fetch(fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e |
311 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
312 | pid = SvIVX(sv); |
313 | SvIVX(sv) = 0; |
79072805 |
314 | sv = *av_fetch(fdpid,fd,TRUE); |
a0d0e21e |
315 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
316 | SvIVX(sv) = pid; |
760ac839 |
317 | PerlIO_close(fp); |
bee1dbe2 |
318 | |
6e21c824 |
319 | } |
320 | fp = saveifp; |
760ac839 |
321 | PerlIO_clearerr(fp); |
6e21c824 |
322 | } |
a0d0e21e |
323 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 |
324 | fd = PerlIO_fileno(fp); |
a0d0e21e |
325 | fcntl(fd,F_SETFD,fd > maxsysfd); |
1462b684 |
326 | #endif |
8990e307 |
327 | IoIFP(io) = fp; |
bf38876a |
328 | if (writing) { |
8990e307 |
329 | if (IoTYPE(io) == 's' |
330 | || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { |
760ac839 |
331 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
332 | PerlIO_close(fp); |
8990e307 |
333 | IoIFP(io) = Nullfp; |
6e21c824 |
334 | goto say_false; |
fe14fcc3 |
335 | } |
1462b684 |
336 | } |
337 | else |
8990e307 |
338 | IoOFP(io) = fp; |
bf38876a |
339 | } |
a687059c |
340 | return TRUE; |
6e21c824 |
341 | |
342 | say_false: |
8990e307 |
343 | IoIFP(io) = saveifp; |
344 | IoOFP(io) = saveofp; |
345 | IoTYPE(io) = savetype; |
6e21c824 |
346 | return FALSE; |
a687059c |
347 | } |
348 | |
760ac839 |
349 | PerlIO * |
79072805 |
350 | nextargv(gv) |
351 | register GV *gv; |
a687059c |
352 | { |
79072805 |
353 | register SV *sv; |
99b89507 |
354 | #ifndef FLEXFILENAMES |
c623bd54 |
355 | int filedev; |
356 | int fileino; |
99b89507 |
357 | #endif |
c623bd54 |
358 | int fileuid; |
359 | int filegid; |
fe14fcc3 |
360 | |
79072805 |
361 | if (!argvoutgv) |
85e6fe83 |
362 | argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
fe14fcc3 |
363 | if (filemode & (S_ISUID|S_ISGID)) { |
760ac839 |
364 | PerlIO_flush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 |
365 | #ifdef HAS_FCHMOD |
366 | (void)fchmod(lastfd,filemode); |
367 | #else |
368 | (void)chmod(oldname,filemode); |
369 | #endif |
370 | } |
371 | filemode = 0; |
79072805 |
372 | while (av_len(GvAV(gv)) >= 0) { |
463ee0b2 |
373 | STRLEN len; |
79072805 |
374 | sv = av_shift(GvAV(gv)); |
8990e307 |
375 | SAVEFREESV(sv); |
79072805 |
376 | sv_setsv(GvSV(gv),sv); |
377 | SvSETMAGIC(GvSV(gv)); |
463ee0b2 |
378 | oldname = SvPVx(GvSV(gv), len); |
c07a80fd |
379 | if (do_open(gv,oldname,len,FALSE,0,0,Nullfp)) { |
a687059c |
380 | if (inplace) { |
79072805 |
381 | TAINT_PROPER("inplace open"); |
c623bd54 |
382 | if (strEQ(oldname,"-")) { |
4633a7c4 |
383 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e |
384 | return IoIFP(GvIOp(gv)); |
c623bd54 |
385 | } |
99b89507 |
386 | #ifndef FLEXFILENAMES |
c623bd54 |
387 | filedev = statbuf.st_dev; |
388 | fileino = statbuf.st_ino; |
99b89507 |
389 | #endif |
a687059c |
390 | filemode = statbuf.st_mode; |
391 | fileuid = statbuf.st_uid; |
392 | filegid = statbuf.st_gid; |
c623bd54 |
393 | if (!S_ISREG(filemode)) { |
394 | warn("Can't do inplace edit: %s is not a regular file", |
395 | oldname ); |
79072805 |
396 | do_close(gv,FALSE); |
c623bd54 |
397 | continue; |
398 | } |
a687059c |
399 | if (*inplace) { |
ff8e2863 |
400 | #ifdef SUFFIX |
79072805 |
401 | add_suffix(sv,inplace); |
ff8e2863 |
402 | #else |
79072805 |
403 | sv_catpv(sv,inplace); |
ff8e2863 |
404 | #endif |
c623bd54 |
405 | #ifndef FLEXFILENAMES |
a0d0e21e |
406 | if (Stat(SvPVX(sv),&statbuf) >= 0 |
c623bd54 |
407 | && statbuf.st_dev == filedev |
408 | && statbuf.st_ino == fileino ) { |
409 | warn("Can't do inplace edit: %s > 14 characters", |
463ee0b2 |
410 | SvPVX(sv) ); |
79072805 |
411 | do_close(gv,FALSE); |
c623bd54 |
412 | continue; |
413 | } |
414 | #endif |
fe14fcc3 |
415 | #ifdef HAS_RENAME |
bee1dbe2 |
416 | #ifndef DOSISH |
463ee0b2 |
417 | if (rename(oldname,SvPVX(sv)) < 0) { |
c623bd54 |
418 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 |
419 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
420 | do_close(gv,FALSE); |
c623bd54 |
421 | continue; |
422 | } |
a687059c |
423 | #else |
79072805 |
424 | do_close(gv,FALSE); |
463ee0b2 |
425 | (void)unlink(SvPVX(sv)); |
426 | (void)rename(oldname,SvPVX(sv)); |
1193dd27 |
427 | do_open(gv,SvPVX(sv),SvCUR(sv),FALSE,0,0,Nullfp); |
55497cff |
428 | #endif /* DOSISH */ |
ff8e2863 |
429 | #else |
463ee0b2 |
430 | (void)UNLINK(SvPVX(sv)); |
431 | if (link(oldname,SvPVX(sv)) < 0) { |
c623bd54 |
432 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 |
433 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
434 | do_close(gv,FALSE); |
c623bd54 |
435 | continue; |
436 | } |
a687059c |
437 | (void)UNLINK(oldname); |
438 | #endif |
439 | } |
440 | else { |
a8c18271 |
441 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 |
442 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
fe14fcc3 |
443 | if (UNLINK(oldname) < 0) { |
444 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 |
445 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
446 | do_close(gv,FALSE); |
fe14fcc3 |
447 | continue; |
448 | } |
edc7bc49 |
449 | # endif |
ff8e2863 |
450 | #else |
463ee0b2 |
451 | croak("Can't do inplace edit without backup"); |
ff8e2863 |
452 | #endif |
a687059c |
453 | } |
454 | |
79072805 |
455 | sv_setpvn(sv,">",1); |
456 | sv_catpv(sv,oldname); |
748a9306 |
457 | SETERRNO(0,0); /* in case sprintf set errno */ |
c07a80fd |
458 | if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),FALSE,0,0,Nullfp)) { |
c623bd54 |
459 | warn("Can't do inplace edit on %s: %s", |
2304df62 |
460 | oldname, Strerror(errno) ); |
79072805 |
461 | do_close(gv,FALSE); |
fe14fcc3 |
462 | continue; |
463 | } |
4633a7c4 |
464 | setdefout(argvoutgv); |
760ac839 |
465 | lastfd = PerlIO_fileno(IoIFP(GvIOp(argvoutgv))); |
a0d0e21e |
466 | (void)Fstat(lastfd,&statbuf); |
fe14fcc3 |
467 | #ifdef HAS_FCHMOD |
468 | (void)fchmod(lastfd,filemode); |
a687059c |
469 | #else |
470 | (void)chmod(oldname,filemode); |
471 | #endif |
fe14fcc3 |
472 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
473 | #ifdef HAS_FCHOWN |
474 | (void)fchown(lastfd,fileuid,filegid); |
a687059c |
475 | #else |
fe14fcc3 |
476 | #ifdef HAS_CHOWN |
477 | (void)chown(oldname,fileuid,filegid); |
a687059c |
478 | #endif |
b1248f16 |
479 | #endif |
fe14fcc3 |
480 | } |
a687059c |
481 | } |
a0d0e21e |
482 | return IoIFP(GvIOp(gv)); |
a687059c |
483 | } |
484 | else |
760ac839 |
485 | PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n",SvPV(sv, na), Strerror(errno)); |
a687059c |
486 | } |
487 | if (inplace) { |
79072805 |
488 | (void)do_close(argvoutgv,FALSE); |
4633a7c4 |
489 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c |
490 | } |
491 | return Nullfp; |
492 | } |
493 | |
fe14fcc3 |
494 | #ifdef HAS_PIPE |
afd9f252 |
495 | void |
79072805 |
496 | do_pipe(sv, rgv, wgv) |
497 | SV *sv; |
498 | GV *rgv; |
499 | GV *wgv; |
afd9f252 |
500 | { |
79072805 |
501 | register IO *rstio; |
502 | register IO *wstio; |
afd9f252 |
503 | int fd[2]; |
504 | |
79072805 |
505 | if (!rgv) |
afd9f252 |
506 | goto badexit; |
79072805 |
507 | if (!wgv) |
afd9f252 |
508 | goto badexit; |
509 | |
a0d0e21e |
510 | rstio = GvIOn(rgv); |
511 | wstio = GvIOn(wgv); |
afd9f252 |
512 | |
a0d0e21e |
513 | if (IoIFP(rstio)) |
79072805 |
514 | do_close(rgv,FALSE); |
a0d0e21e |
515 | if (IoIFP(wstio)) |
79072805 |
516 | do_close(wgv,FALSE); |
afd9f252 |
517 | |
518 | if (pipe(fd) < 0) |
519 | goto badexit; |
760ac839 |
520 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
521 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); |
8990e307 |
522 | IoIFP(wstio) = IoOFP(wstio); |
523 | IoTYPE(rstio) = '<'; |
524 | IoTYPE(wstio) = '>'; |
525 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 |
526 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
fe14fcc3 |
527 | else close(fd[0]); |
760ac839 |
528 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
fe14fcc3 |
529 | else close(fd[1]); |
530 | goto badexit; |
531 | } |
afd9f252 |
532 | |
79072805 |
533 | sv_setsv(sv,&sv_yes); |
afd9f252 |
534 | return; |
535 | |
536 | badexit: |
79072805 |
537 | sv_setsv(sv,&sv_undef); |
afd9f252 |
538 | return; |
539 | } |
b1248f16 |
540 | #endif |
afd9f252 |
541 | |
517844ec |
542 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c |
543 | bool |
a0d0e21e |
544 | #ifndef CAN_PROTOTYPE |
517844ec |
545 | do_close(gv,not_implicit) |
79072805 |
546 | GV *gv; |
517844ec |
547 | bool not_implicit; |
8990e307 |
548 | #else |
517844ec |
549 | do_close(GV *gv, bool not_implicit) |
a0d0e21e |
550 | #endif /* CAN_PROTOTYPE */ |
a687059c |
551 | { |
1193dd27 |
552 | bool retval; |
553 | IO *io; |
a687059c |
554 | |
79072805 |
555 | if (!gv) |
556 | gv = argvgv; |
a0d0e21e |
557 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
748a9306 |
558 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 |
559 | return FALSE; |
99b89507 |
560 | } |
79072805 |
561 | io = GvIO(gv); |
562 | if (!io) { /* never opened */ |
517844ec |
563 | if (dowarn && not_implicit) |
79072805 |
564 | warn("Close on unopened file <%s>",GvENAME(gv)); |
a687059c |
565 | return FALSE; |
566 | } |
1193dd27 |
567 | retval = io_close(io); |
517844ec |
568 | if (not_implicit) { |
1193dd27 |
569 | IoLINES(io) = 0; |
570 | IoPAGE(io) = 0; |
571 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
572 | } |
573 | IoTYPE(io) = ' '; |
574 | return retval; |
575 | } |
576 | |
577 | bool |
578 | io_close(io) |
579 | IO* io; |
580 | { |
581 | bool retval = FALSE; |
582 | int status; |
583 | |
8990e307 |
584 | if (IoIFP(io)) { |
585 | if (IoTYPE(io) == '|') { |
586 | status = my_pclose(IoIFP(io)); |
c623bd54 |
587 | retval = (status == 0); |
f86702cc |
588 | STATUS_NATIVE_SET(status); |
a687059c |
589 | } |
8990e307 |
590 | else if (IoTYPE(io) == '-') |
a687059c |
591 | retval = TRUE; |
592 | else { |
8990e307 |
593 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 |
594 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
595 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
596 | } |
597 | else |
760ac839 |
598 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c |
599 | } |
8990e307 |
600 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 |
601 | } |
1193dd27 |
602 | |
a687059c |
603 | return retval; |
604 | } |
605 | |
606 | bool |
79072805 |
607 | do_eof(gv) |
608 | GV *gv; |
a687059c |
609 | { |
79072805 |
610 | register IO *io; |
a687059c |
611 | int ch; |
612 | |
79072805 |
613 | io = GvIO(gv); |
a687059c |
614 | |
79072805 |
615 | if (!io) |
a687059c |
616 | return TRUE; |
617 | |
8990e307 |
618 | while (IoIFP(io)) { |
a687059c |
619 | |
760ac839 |
620 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
621 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
622 | return FALSE; /* this is the most usual case */ |
623 | } |
a687059c |
624 | |
760ac839 |
625 | ch = PerlIO_getc(IoIFP(io)); |
a687059c |
626 | if (ch != EOF) { |
760ac839 |
627 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c |
628 | return FALSE; |
629 | } |
760ac839 |
630 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
631 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
632 | PerlIO_set_cnt(IoIFP(io),-1); |
633 | } |
8990e307 |
634 | if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
79072805 |
635 | if (!nextargv(argvgv)) /* get another fp handy */ |
a687059c |
636 | return TRUE; |
637 | } |
638 | else |
639 | return TRUE; /* normal fp, definitely end of file */ |
640 | } |
641 | return TRUE; |
642 | } |
643 | |
644 | long |
79072805 |
645 | do_tell(gv) |
646 | GV *gv; |
a687059c |
647 | { |
79072805 |
648 | register IO *io; |
a687059c |
649 | |
79072805 |
650 | if (!gv) |
a687059c |
651 | goto phooey; |
652 | |
79072805 |
653 | io = GvIO(gv); |
8990e307 |
654 | if (!io || !IoIFP(io)) |
a687059c |
655 | goto phooey; |
656 | |
bee1dbe2 |
657 | #ifdef ULTRIX_STDIO_BOTCH |
760ac839 |
658 | if (PerlIO_eof(IoIFP(io))) |
659 | (void)PerlIO_seek (IoIFP(io), 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
660 | #endif |
a687059c |
661 | |
760ac839 |
662 | return PerlIO_tell(IoIFP(io)); |
a687059c |
663 | |
664 | phooey: |
665 | if (dowarn) |
666 | warn("tell() on unopened file"); |
748a9306 |
667 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
668 | return -1L; |
669 | } |
670 | |
671 | bool |
79072805 |
672 | do_seek(gv, pos, whence) |
673 | GV *gv; |
a687059c |
674 | long pos; |
675 | int whence; |
676 | { |
79072805 |
677 | register IO *io; |
a687059c |
678 | |
79072805 |
679 | if (!gv) |
a687059c |
680 | goto nuts; |
681 | |
79072805 |
682 | io = GvIO(gv); |
8990e307 |
683 | if (!io || !IoIFP(io)) |
a687059c |
684 | goto nuts; |
685 | |
bee1dbe2 |
686 | #ifdef ULTRIX_STDIO_BOTCH |
760ac839 |
687 | if (PerlIO_eof(IoIFP(io))) |
688 | (void)PerlIO_seek (IoIFP(io), 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
689 | #endif |
a687059c |
690 | |
760ac839 |
691 | return PerlIO_seek(IoIFP(io), pos, whence) >= 0; |
a687059c |
692 | |
693 | nuts: |
694 | if (dowarn) |
695 | warn("seek() on unopened file"); |
748a9306 |
696 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
697 | return FALSE; |
698 | } |
699 | |
a0d0e21e |
700 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 |
701 | /* code courtesy of William Kucharski */ |
fe14fcc3 |
702 | #define HAS_CHSIZE |
6eb13c3b |
703 | |
517844ec |
704 | I32 my_chsize(fd, length) |
79072805 |
705 | I32 fd; /* file descriptor */ |
85e6fe83 |
706 | Off_t length; /* length to set file to */ |
6eb13c3b |
707 | { |
708 | extern long lseek(); |
709 | struct flock fl; |
710 | struct stat filebuf; |
711 | |
a0d0e21e |
712 | if (Fstat(fd, &filebuf) < 0) |
6eb13c3b |
713 | return -1; |
714 | |
715 | if (filebuf.st_size < length) { |
716 | |
717 | /* extend file length */ |
718 | |
719 | if ((lseek(fd, (length - 1), 0)) < 0) |
720 | return -1; |
721 | |
722 | /* write a "0" byte */ |
723 | |
724 | if ((write(fd, "", 1)) != 1) |
725 | return -1; |
726 | } |
727 | else { |
728 | /* truncate length */ |
729 | |
730 | fl.l_whence = 0; |
731 | fl.l_len = 0; |
732 | fl.l_start = length; |
a0d0e21e |
733 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b |
734 | |
735 | /* |
a0d0e21e |
736 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b |
737 | * fcntl(2), which truncates the file so that it ends at the |
738 | * position indicated by fl.l_start. |
739 | * |
740 | * Will minor miracles never cease? |
741 | */ |
742 | |
a0d0e21e |
743 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b |
744 | return -1; |
745 | |
746 | } |
747 | |
748 | return 0; |
749 | } |
a0d0e21e |
750 | #endif /* F_FREESP */ |
ff8e2863 |
751 | |
a687059c |
752 | bool |
79072805 |
753 | do_print(sv,fp) |
754 | register SV *sv; |
760ac839 |
755 | PerlIO *fp; |
a687059c |
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) { |
760ac839 |
767 | PerlIO_printf(fp, ofmt, (double)SvIVX(sv)); |
768 | return !PerlIO_error(fp); |
79072805 |
769 | } |
463ee0b2 |
770 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 |
771 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
760ac839 |
772 | PerlIO_printf(fp, ofmt, SvNVX(sv)); |
773 | return !PerlIO_error(fp); |
79072805 |
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); |
760ac839 |
785 | PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); |
786 | return !PerlIO_error(fp); |
a0d0e21e |
787 | } |
788 | /* FALL THROUGH */ |
79072805 |
789 | default: |
463ee0b2 |
790 | tmps = SvPV(sv, len); |
79072805 |
791 | break; |
ff8e2863 |
792 | } |
760ac839 |
793 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c |
794 | return FALSE; |
760ac839 |
795 | return !PerlIO_error(fp); |
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; |
760ac839 |
815 | return (laststatval = Fstat(PerlIO_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 | |
760ac839 |
926 | #ifndef OS2 |
927 | |
a687059c |
928 | bool |
929 | do_exec(cmd) |
930 | char *cmd; |
931 | { |
932 | register char **a; |
933 | register char *s; |
a687059c |
934 | char flags[10]; |
935 | |
748a9306 |
936 | while (*cmd && isSPACE(*cmd)) |
937 | cmd++; |
938 | |
a687059c |
939 | /* save an extra exec if possible */ |
940 | |
bf38876a |
941 | #ifdef CSH |
942 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { |
a687059c |
943 | strcpy(flags,"-c"); |
bf38876a |
944 | s = cmd+cshlen+3; |
a687059c |
945 | if (*s == 'f') { |
946 | s++; |
947 | strcat(flags,"f"); |
948 | } |
949 | if (*s == ' ') |
950 | s++; |
951 | if (*s++ == '\'') { |
952 | char *ncmd = s; |
953 | |
954 | while (*s) |
955 | s++; |
956 | if (s[-1] == '\n') |
957 | *--s = '\0'; |
958 | if (s[-1] == '\'') { |
959 | *--s = '\0'; |
bf38876a |
960 | execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
961 | *s = '\''; |
962 | return FALSE; |
963 | } |
964 | } |
965 | } |
bf38876a |
966 | #endif /* CSH */ |
a687059c |
967 | |
968 | /* see if there are shell metacharacters in it */ |
969 | |
748a9306 |
970 | if (*cmd == '.' && isSPACE(cmd[1])) |
971 | goto doshell; |
972 | |
973 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
974 | goto doshell; |
975 | |
99b89507 |
976 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 |
977 | if (*s == '=') |
978 | goto doshell; |
748a9306 |
979 | |
a687059c |
980 | for (s = cmd; *s; s++) { |
93a17b20 |
981 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c |
982 | if (*s == '\n' && !s[1]) { |
983 | *s = '\0'; |
984 | break; |
985 | } |
986 | doshell: |
ff68c719 |
987 | execl(sh_path, "sh", "-c", cmd, (char*)0); |
a687059c |
988 | return FALSE; |
989 | } |
990 | } |
748a9306 |
991 | |
ff8e2863 |
992 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
a0d0e21e |
993 | Cmd = savepvn(cmd, s-cmd); |
ff8e2863 |
994 | a = Argv; |
995 | for (s = Cmd; *s;) { |
99b89507 |
996 | while (*s && isSPACE(*s)) s++; |
a687059c |
997 | if (*s) |
998 | *(a++) = s; |
99b89507 |
999 | while (*s && !isSPACE(*s)) s++; |
a687059c |
1000 | if (*s) |
1001 | *s++ = '\0'; |
1002 | } |
1003 | *a = Nullch; |
ff8e2863 |
1004 | if (Argv[0]) { |
1005 | execvp(Argv[0],Argv); |
b1248f16 |
1006 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1007 | do_execfree(); |
a687059c |
1008 | goto doshell; |
b1248f16 |
1009 | } |
a0d0e21e |
1010 | if (dowarn) |
1011 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); |
a687059c |
1012 | } |
ff8e2863 |
1013 | do_execfree(); |
a687059c |
1014 | return FALSE; |
1015 | } |
1016 | |
55497cff |
1017 | #endif /* OS2 */ |
760ac839 |
1018 | |
79072805 |
1019 | I32 |
1020 | apply(type,mark,sp) |
1021 | I32 type; |
1022 | register SV **mark; |
1023 | register SV **sp; |
a687059c |
1024 | { |
79072805 |
1025 | register I32 val; |
1026 | register I32 val2; |
1027 | register I32 tot = 0; |
a687059c |
1028 | char *s; |
79072805 |
1029 | SV **oldmark = mark; |
a687059c |
1030 | |
463ee0b2 |
1031 | if (tainting) { |
1032 | while (++mark <= sp) { |
bbce6d69 |
1033 | if (SvTAINTED(*mark)) { |
1034 | TAINT; |
1035 | break; |
1036 | } |
463ee0b2 |
1037 | } |
1038 | mark = oldmark; |
1039 | } |
a687059c |
1040 | switch (type) { |
79072805 |
1041 | case OP_CHMOD: |
1042 | TAINT_PROPER("chmod"); |
1043 | if (++mark <= sp) { |
1044 | tot = sp - mark; |
463ee0b2 |
1045 | val = SvIVx(*mark); |
79072805 |
1046 | while (++mark <= sp) { |
463ee0b2 |
1047 | if (chmod(SvPVx(*mark, na),val)) |
a687059c |
1048 | tot--; |
1049 | } |
1050 | } |
1051 | break; |
fe14fcc3 |
1052 | #ifdef HAS_CHOWN |
79072805 |
1053 | case OP_CHOWN: |
1054 | TAINT_PROPER("chown"); |
1055 | if (sp - mark > 2) { |
463ee0b2 |
1056 | val = SvIVx(*++mark); |
1057 | val2 = SvIVx(*++mark); |
a0d0e21e |
1058 | tot = sp - mark; |
79072805 |
1059 | while (++mark <= sp) { |
463ee0b2 |
1060 | if (chown(SvPVx(*mark, na),val,val2)) |
a687059c |
1061 | tot--; |
1062 | } |
1063 | } |
1064 | break; |
b1248f16 |
1065 | #endif |
fe14fcc3 |
1066 | #ifdef HAS_KILL |
79072805 |
1067 | case OP_KILL: |
1068 | TAINT_PROPER("kill"); |
55497cff |
1069 | if (mark == sp) |
1070 | break; |
463ee0b2 |
1071 | s = SvPVx(*++mark, na); |
79072805 |
1072 | tot = sp - mark; |
1073 | if (isUPPER(*s)) { |
1074 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1075 | s += 3; |
1076 | if (!(val = whichsig(s))) |
463ee0b2 |
1077 | croak("Unrecognized signal name \"%s\"",s); |
79072805 |
1078 | } |
1079 | else |
463ee0b2 |
1080 | val = SvIVx(*mark); |
3595fcef |
1081 | #ifdef VMS |
1082 | /* kill() doesn't do process groups (job trees?) under VMS */ |
1083 | if (val < 0) val = -val; |
1084 | if (val == SIGKILL) { |
1085 | # include <starlet.h> |
1086 | /* Use native sys$delprc() to insure that target process is |
1087 | * deleted; supervisor-mode images don't pay attention to |
1088 | * CRTL's emulation of Unix-style signals and kill() |
1089 | */ |
1090 | while (++mark <= sp) { |
1091 | I32 proc = SvIVx(*mark); |
1092 | register unsigned long int __vmssts; |
1093 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1094 | tot--; |
1095 | switch (__vmssts) { |
1096 | case SS$_NONEXPR: |
1097 | case SS$_NOSUCHNODE: |
1098 | SETERRNO(ESRCH,__vmssts); |
1099 | break; |
1100 | case SS$_NOPRIV: |
1101 | SETERRNO(EPERM,__vmssts); |
1102 | break; |
1103 | default: |
1104 | SETERRNO(EVMSERR,__vmssts); |
1105 | } |
1106 | } |
1107 | } |
1108 | break; |
1109 | } |
1110 | #endif |
79072805 |
1111 | if (val < 0) { |
1112 | val = -val; |
1113 | while (++mark <= sp) { |
463ee0b2 |
1114 | I32 proc = SvIVx(*mark); |
fe14fcc3 |
1115 | #ifdef HAS_KILLPG |
79072805 |
1116 | if (killpg(proc,val)) /* BSD */ |
a687059c |
1117 | #else |
79072805 |
1118 | if (kill(-proc,val)) /* SYSV */ |
a687059c |
1119 | #endif |
79072805 |
1120 | tot--; |
a687059c |
1121 | } |
79072805 |
1122 | } |
1123 | else { |
1124 | while (++mark <= sp) { |
463ee0b2 |
1125 | if (kill(SvIVx(*mark),val)) |
79072805 |
1126 | tot--; |
a687059c |
1127 | } |
1128 | } |
1129 | break; |
b1248f16 |
1130 | #endif |
79072805 |
1131 | case OP_UNLINK: |
1132 | TAINT_PROPER("unlink"); |
1133 | tot = sp - mark; |
1134 | while (++mark <= sp) { |
463ee0b2 |
1135 | s = SvPVx(*mark, na); |
a687059c |
1136 | if (euid || unsafe) { |
1137 | if (UNLINK(s)) |
1138 | tot--; |
1139 | } |
1140 | else { /* don't let root wipe out directories without -U */ |
fe14fcc3 |
1141 | #ifdef HAS_LSTAT |
c623bd54 |
1142 | if (lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c |
1143 | #else |
a0d0e21e |
1144 | if (Stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c |
1145 | #endif |
a687059c |
1146 | tot--; |
1147 | else { |
1148 | if (UNLINK(s)) |
1149 | tot--; |
1150 | } |
1151 | } |
1152 | } |
1153 | break; |
a0d0e21e |
1154 | #ifdef HAS_UTIME |
79072805 |
1155 | case OP_UTIME: |
1156 | TAINT_PROPER("utime"); |
1157 | if (sp - mark > 2) { |
748a9306 |
1158 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 |
1159 | struct utimbuf utbuf; |
1160 | #else |
a687059c |
1161 | struct { |
663a0e37 |
1162 | long actime; |
1163 | long modtime; |
a687059c |
1164 | } utbuf; |
663a0e37 |
1165 | #endif |
a687059c |
1166 | |
afd9f252 |
1167 | Zero(&utbuf, sizeof utbuf, char); |
517844ec |
1168 | #ifdef BIG_TIME |
1169 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1170 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ |
1171 | #else |
463ee0b2 |
1172 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1173 | utbuf.modtime = SvIVx(*++mark); /* time modified */ |
517844ec |
1174 | #endif |
79072805 |
1175 | tot = sp - mark; |
1176 | while (++mark <= sp) { |
463ee0b2 |
1177 | if (utime(SvPVx(*mark, na),&utbuf)) |
a687059c |
1178 | tot--; |
1179 | } |
a687059c |
1180 | } |
1181 | else |
79072805 |
1182 | tot = 0; |
a687059c |
1183 | break; |
a0d0e21e |
1184 | #endif |
a687059c |
1185 | } |
1186 | return tot; |
1187 | } |
1188 | |
1189 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
a0d0e21e |
1190 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 |
1191 | I32 |
a687059c |
1192 | cando(bit, effective, statbufp) |
79072805 |
1193 | I32 bit; |
1194 | I32 effective; |
a687059c |
1195 | register struct stat *statbufp; |
1196 | { |
bee1dbe2 |
1197 | #ifdef DOSISH |
fe14fcc3 |
1198 | /* [Comments and code from Len Reed] |
1199 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write |
1200 | * to write-protected files. The execute permission bit is set |
1201 | * by the Miscrosoft C library stat() function for the following: |
1202 | * .exe files |
1203 | * .com files |
1204 | * .bat files |
1205 | * directories |
1206 | * All files and directories are readable. |
1207 | * Directories and special files, e.g. "CON", cannot be |
1208 | * write-protected. |
1209 | * [Comment by Tom Dinger -- a directory can have the write-protect |
1210 | * bit set in the file system, but DOS permits changes to |
1211 | * the directory anyway. In addition, all bets are off |
1212 | * here for networked software, such as Novell and |
1213 | * Sun's PC-NFS.] |
1214 | */ |
1215 | |
bee1dbe2 |
1216 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1217 | * too so it will actually look into the files for magic numbers |
1218 | */ |
fe14fcc3 |
1219 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1220 | |
55497cff |
1221 | #else /* ! DOSISH */ |
a687059c |
1222 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 |
1223 | if (bit == S_IXUSR) { |
1224 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c |
1225 | return TRUE; |
1226 | } |
1227 | else |
1228 | return TRUE; /* root reads and writes anything */ |
1229 | return FALSE; |
1230 | } |
1231 | if (statbufp->st_uid == (effective ? euid : uid) ) { |
1232 | if (statbufp->st_mode & bit) |
1233 | return TRUE; /* ok as "user" */ |
1234 | } |
79072805 |
1235 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c |
1236 | if (statbufp->st_mode & bit >> 3) |
1237 | return TRUE; /* ok as "group" */ |
1238 | } |
1239 | else if (statbufp->st_mode & bit >> 6) |
1240 | return TRUE; /* ok as "other" */ |
1241 | return FALSE; |
55497cff |
1242 | #endif /* ! DOSISH */ |
a687059c |
1243 | } |
a0d0e21e |
1244 | #endif /* ! VMS */ |
a687059c |
1245 | |
79072805 |
1246 | I32 |
a687059c |
1247 | ingroup(testgid,effective) |
79072805 |
1248 | I32 testgid; |
1249 | I32 effective; |
a687059c |
1250 | { |
1251 | if (testgid == (effective ? egid : gid)) |
1252 | return TRUE; |
fe14fcc3 |
1253 | #ifdef HAS_GETGROUPS |
a687059c |
1254 | #ifndef NGROUPS |
1255 | #define NGROUPS 32 |
1256 | #endif |
1257 | { |
a0d0e21e |
1258 | Groups_t gary[NGROUPS]; |
79072805 |
1259 | I32 anum; |
a687059c |
1260 | |
1261 | anum = getgroups(NGROUPS,gary); |
1262 | while (--anum >= 0) |
1263 | if (gary[anum] == testgid) |
1264 | return TRUE; |
1265 | } |
1266 | #endif |
1267 | return FALSE; |
1268 | } |
c2ab57d4 |
1269 | |
fe14fcc3 |
1270 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
1271 | |
79072805 |
1272 | I32 |
1273 | do_ipcget(optype, mark, sp) |
1274 | I32 optype; |
1275 | SV **mark; |
1276 | SV **sp; |
c2ab57d4 |
1277 | { |
c2ab57d4 |
1278 | key_t key; |
79072805 |
1279 | I32 n, flags; |
c2ab57d4 |
1280 | |
463ee0b2 |
1281 | key = (key_t)SvNVx(*++mark); |
1282 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); |
1283 | flags = SvIVx(*++mark); |
748a9306 |
1284 | SETERRNO(0,0); |
c2ab57d4 |
1285 | switch (optype) |
1286 | { |
fe14fcc3 |
1287 | #ifdef HAS_MSG |
79072805 |
1288 | case OP_MSGGET: |
c2ab57d4 |
1289 | return msgget(key, flags); |
e5d73d77 |
1290 | #endif |
fe14fcc3 |
1291 | #ifdef HAS_SEM |
79072805 |
1292 | case OP_SEMGET: |
c2ab57d4 |
1293 | return semget(key, n, flags); |
e5d73d77 |
1294 | #endif |
fe14fcc3 |
1295 | #ifdef HAS_SHM |
79072805 |
1296 | case OP_SHMGET: |
c2ab57d4 |
1297 | return shmget(key, n, flags); |
e5d73d77 |
1298 | #endif |
fe14fcc3 |
1299 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1300 | default: |
c07a80fd |
1301 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 |
1302 | #endif |
c2ab57d4 |
1303 | } |
1304 | return -1; /* should never happen */ |
1305 | } |
1306 | |
79072805 |
1307 | I32 |
1308 | do_ipcctl(optype, mark, sp) |
1309 | I32 optype; |
1310 | SV **mark; |
1311 | SV **sp; |
c2ab57d4 |
1312 | { |
79072805 |
1313 | SV *astr; |
c2ab57d4 |
1314 | char *a; |
a0d0e21e |
1315 | I32 id, n, cmd, infosize, getinfo; |
1316 | I32 ret = -1; |
c2ab57d4 |
1317 | |
463ee0b2 |
1318 | id = SvIVx(*++mark); |
1319 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
1320 | cmd = SvIVx(*++mark); |
79072805 |
1321 | astr = *++mark; |
c2ab57d4 |
1322 | infosize = 0; |
1323 | getinfo = (cmd == IPC_STAT); |
1324 | |
1325 | switch (optype) |
1326 | { |
fe14fcc3 |
1327 | #ifdef HAS_MSG |
79072805 |
1328 | case OP_MSGCTL: |
c2ab57d4 |
1329 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1330 | infosize = sizeof(struct msqid_ds); |
1331 | break; |
e5d73d77 |
1332 | #endif |
fe14fcc3 |
1333 | #ifdef HAS_SHM |
79072805 |
1334 | case OP_SHMCTL: |
c2ab57d4 |
1335 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1336 | infosize = sizeof(struct shmid_ds); |
1337 | break; |
e5d73d77 |
1338 | #endif |
fe14fcc3 |
1339 | #ifdef HAS_SEM |
79072805 |
1340 | case OP_SEMCTL: |
c2ab57d4 |
1341 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1342 | infosize = sizeof(struct semid_ds); |
1343 | else if (cmd == GETALL || cmd == SETALL) |
1344 | { |
1345 | struct semid_ds semds; |
1346 | if (semctl(id, 0, IPC_STAT, &semds) == -1) |
1347 | return -1; |
1348 | getinfo = (cmd == GETALL); |
6e21c824 |
1349 | infosize = semds.sem_nsems * sizeof(short); |
1350 | /* "short" is technically wrong but much more portable |
1351 | than guessing about u_?short(_t)? */ |
c2ab57d4 |
1352 | } |
1353 | break; |
e5d73d77 |
1354 | #endif |
fe14fcc3 |
1355 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1356 | default: |
c07a80fd |
1357 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 |
1358 | #endif |
c2ab57d4 |
1359 | } |
1360 | |
1361 | if (infosize) |
1362 | { |
a0d0e21e |
1363 | STRLEN len; |
c2ab57d4 |
1364 | if (getinfo) |
1365 | { |
a0d0e21e |
1366 | SvPV_force(astr, len); |
1367 | a = SvGROW(astr, infosize+1); |
c2ab57d4 |
1368 | } |
1369 | else |
1370 | { |
463ee0b2 |
1371 | a = SvPV(astr, len); |
1372 | if (len != infosize) |
ff0cee69 |
1373 | croak("Bad arg length for %s, is %d, should be %ld", |
1374 | op_desc[optype], len, (long)infosize); |
c2ab57d4 |
1375 | } |
1376 | } |
1377 | else |
1378 | { |
c030ccd9 |
1379 | IV i = SvIV(astr); |
c2ab57d4 |
1380 | a = (char *)i; /* ouch */ |
1381 | } |
748a9306 |
1382 | SETERRNO(0,0); |
c2ab57d4 |
1383 | switch (optype) |
1384 | { |
fe14fcc3 |
1385 | #ifdef HAS_MSG |
79072805 |
1386 | case OP_MSGCTL: |
bee1dbe2 |
1387 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 |
1388 | break; |
e5d73d77 |
1389 | #endif |
fe14fcc3 |
1390 | #ifdef HAS_SEM |
79072805 |
1391 | case OP_SEMCTL: |
1392 | ret = semctl(id, n, cmd, (struct semid_ds *)a); |
c2ab57d4 |
1393 | break; |
e5d73d77 |
1394 | #endif |
fe14fcc3 |
1395 | #ifdef HAS_SHM |
79072805 |
1396 | case OP_SHMCTL: |
bee1dbe2 |
1397 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 |
1398 | break; |
e5d73d77 |
1399 | #endif |
c2ab57d4 |
1400 | } |
1401 | if (getinfo && ret >= 0) { |
79072805 |
1402 | SvCUR_set(astr, infosize); |
1403 | *SvEND(astr) = '\0'; |
a0d0e21e |
1404 | SvSETMAGIC(astr); |
c2ab57d4 |
1405 | } |
1406 | return ret; |
1407 | } |
1408 | |
79072805 |
1409 | I32 |
1410 | do_msgsnd(mark, sp) |
1411 | SV **mark; |
1412 | SV **sp; |
c2ab57d4 |
1413 | { |
fe14fcc3 |
1414 | #ifdef HAS_MSG |
79072805 |
1415 | SV *mstr; |
c2ab57d4 |
1416 | char *mbuf; |
79072805 |
1417 | I32 id, msize, flags; |
463ee0b2 |
1418 | STRLEN len; |
c2ab57d4 |
1419 | |
463ee0b2 |
1420 | id = SvIVx(*++mark); |
79072805 |
1421 | mstr = *++mark; |
463ee0b2 |
1422 | flags = SvIVx(*++mark); |
1423 | mbuf = SvPV(mstr, len); |
1424 | if ((msize = len - sizeof(long)) < 0) |
1425 | croak("Arg too short for msgsnd"); |
748a9306 |
1426 | SETERRNO(0,0); |
bee1dbe2 |
1427 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 |
1428 | #else |
463ee0b2 |
1429 | croak("msgsnd not implemented"); |
e5d73d77 |
1430 | #endif |
c2ab57d4 |
1431 | } |
1432 | |
79072805 |
1433 | I32 |
1434 | do_msgrcv(mark, sp) |
1435 | SV **mark; |
1436 | SV **sp; |
c2ab57d4 |
1437 | { |
fe14fcc3 |
1438 | #ifdef HAS_MSG |
79072805 |
1439 | SV *mstr; |
c2ab57d4 |
1440 | char *mbuf; |
1441 | long mtype; |
79072805 |
1442 | I32 id, msize, flags, ret; |
463ee0b2 |
1443 | STRLEN len; |
79072805 |
1444 | |
463ee0b2 |
1445 | id = SvIVx(*++mark); |
79072805 |
1446 | mstr = *++mark; |
463ee0b2 |
1447 | msize = SvIVx(*++mark); |
1448 | mtype = (long)SvIVx(*++mark); |
1449 | flags = SvIVx(*++mark); |
ed6116ce |
1450 | if (SvTHINKFIRST(mstr)) { |
1451 | if (SvREADONLY(mstr)) |
1452 | croak("Can't msgrcv to readonly var"); |
1453 | if (SvROK(mstr)) |
1454 | sv_unref(mstr); |
1455 | } |
a0d0e21e |
1456 | SvPV_force(mstr, len); |
1457 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
1458 | |
748a9306 |
1459 | SETERRNO(0,0); |
bee1dbe2 |
1460 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 |
1461 | if (ret >= 0) { |
79072805 |
1462 | SvCUR_set(mstr, sizeof(long)+ret); |
1463 | *SvEND(mstr) = '\0'; |
c2ab57d4 |
1464 | } |
1465 | return ret; |
e5d73d77 |
1466 | #else |
463ee0b2 |
1467 | croak("msgrcv not implemented"); |
e5d73d77 |
1468 | #endif |
c2ab57d4 |
1469 | } |
1470 | |
79072805 |
1471 | I32 |
1472 | do_semop(mark, sp) |
1473 | SV **mark; |
1474 | SV **sp; |
c2ab57d4 |
1475 | { |
fe14fcc3 |
1476 | #ifdef HAS_SEM |
79072805 |
1477 | SV *opstr; |
c2ab57d4 |
1478 | char *opbuf; |
463ee0b2 |
1479 | I32 id; |
1480 | STRLEN opsize; |
c2ab57d4 |
1481 | |
463ee0b2 |
1482 | id = SvIVx(*++mark); |
79072805 |
1483 | opstr = *++mark; |
463ee0b2 |
1484 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 |
1485 | if (opsize < sizeof(struct sembuf) |
1486 | || (opsize % sizeof(struct sembuf)) != 0) { |
748a9306 |
1487 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 |
1488 | return -1; |
1489 | } |
748a9306 |
1490 | SETERRNO(0,0); |
6e21c824 |
1491 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 |
1492 | #else |
463ee0b2 |
1493 | croak("semop not implemented"); |
e5d73d77 |
1494 | #endif |
c2ab57d4 |
1495 | } |
1496 | |
79072805 |
1497 | I32 |
1498 | do_shmio(optype, mark, sp) |
1499 | I32 optype; |
1500 | SV **mark; |
1501 | SV **sp; |
c2ab57d4 |
1502 | { |
fe14fcc3 |
1503 | #ifdef HAS_SHM |
79072805 |
1504 | SV *mstr; |
c2ab57d4 |
1505 | char *mbuf, *shm; |
79072805 |
1506 | I32 id, mpos, msize; |
463ee0b2 |
1507 | STRLEN len; |
c2ab57d4 |
1508 | struct shmid_ds shmds; |
c2ab57d4 |
1509 | |
463ee0b2 |
1510 | id = SvIVx(*++mark); |
79072805 |
1511 | mstr = *++mark; |
463ee0b2 |
1512 | mpos = SvIVx(*++mark); |
1513 | msize = SvIVx(*++mark); |
748a9306 |
1514 | SETERRNO(0,0); |
c2ab57d4 |
1515 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1516 | return -1; |
1517 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { |
748a9306 |
1518 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 |
1519 | return -1; |
1520 | } |
a0d0e21e |
1521 | shm = (Shmat_t)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 |
1522 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1523 | return -1; |
79072805 |
1524 | if (optype == OP_SHMREAD) { |
a0d0e21e |
1525 | SvPV_force(mstr, len); |
1526 | mbuf = SvGROW(mstr, msize+1); |
1527 | |
bee1dbe2 |
1528 | Copy(shm + mpos, mbuf, msize, char); |
79072805 |
1529 | SvCUR_set(mstr, msize); |
1530 | *SvEND(mstr) = '\0'; |
a0d0e21e |
1531 | SvSETMAGIC(mstr); |
c2ab57d4 |
1532 | } |
1533 | else { |
79072805 |
1534 | I32 n; |
c2ab57d4 |
1535 | |
a0d0e21e |
1536 | mbuf = SvPV(mstr, len); |
463ee0b2 |
1537 | if ((n = len) > msize) |
c2ab57d4 |
1538 | n = msize; |
bee1dbe2 |
1539 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 |
1540 | if (n < msize) |
bee1dbe2 |
1541 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 |
1542 | } |
1543 | return shmdt(shm); |
e5d73d77 |
1544 | #else |
463ee0b2 |
1545 | croak("shm I/O not implemented"); |
e5d73d77 |
1546 | #endif |
c2ab57d4 |
1547 | } |
1548 | |
fe14fcc3 |
1549 | #endif /* SYSV IPC */ |