Commit | Line | Data |
a0d0e21e |
1 | /* doio.c |
a687059c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, 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 |
3730b96e |
37 | # if defined(_MSC_VER) || defined(__MINGW32__) |
3fe9a6f1 |
38 | # include <sys/utime.h> |
39 | # else |
40 | # include <utime.h> |
41 | # endif |
663a0e37 |
42 | #endif |
85aff577 |
43 | |
ff8e2863 |
44 | #ifdef I_FCNTL |
45 | #include <fcntl.h> |
46 | #endif |
fe14fcc3 |
47 | #ifdef I_SYS_FILE |
48 | #include <sys/file.h> |
49 | #endif |
85aff577 |
50 | #ifdef O_EXCL |
51 | # define OPEN_EXCL O_EXCL |
52 | #else |
53 | # define OPEN_EXCL 0 |
54 | #endif |
a687059c |
55 | |
76121258 |
56 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
57 | #include <signal.h> |
58 | #endif |
59 | |
60 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
61 | #ifdef I_UNISTD |
62 | # include <unistd.h> |
63 | #endif |
64 | |
232e078e |
65 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
66 | # include <sys/socket.h> |
67 | # include <netdb.h> |
68 | # ifndef ENOTSOCK |
69 | # ifdef I_NET_ERRNO |
70 | # include <net/errno.h> |
71 | # endif |
72 | # endif |
73 | #endif |
74 | |
d574b85e |
75 | /* Put this after #includes because <unistd.h> defines _XOPEN_*. */ |
76 | #ifndef Sock_size_t |
137443ea |
77 | # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__) |
d574b85e |
78 | # define Sock_size_t Size_t |
79 | # else |
80 | # define Sock_size_t int |
81 | # endif |
82 | #endif |
83 | |
a687059c |
84 | bool |
6acef3b7 |
85 | do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp) |
a687059c |
86 | { |
a0d0e21e |
87 | register IO *io = GvIOn(gv); |
760ac839 |
88 | PerlIO *saveifp = Nullfp; |
89 | PerlIO *saveofp = Nullfp; |
6e21c824 |
90 | char savetype = ' '; |
c07a80fd |
91 | int writing = 0; |
760ac839 |
92 | PerlIO *fp; |
c07a80fd |
93 | int fd; |
94 | int result; |
3500f679 |
95 | bool was_fdopen = FALSE; |
a687059c |
96 | |
3280af22 |
97 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd |
98 | |
a0d0e21e |
99 | if (IoIFP(io)) { |
760ac839 |
100 | fd = PerlIO_fileno(IoIFP(io)); |
8990e307 |
101 | if (IoTYPE(io) == '-') |
c2ab57d4 |
102 | result = 0; |
3280af22 |
103 | else if (fd <= PL_maxsysfd) { |
8990e307 |
104 | saveifp = IoIFP(io); |
105 | saveofp = IoOFP(io); |
106 | savetype = IoTYPE(io); |
6e21c824 |
107 | result = 0; |
108 | } |
8990e307 |
109 | else if (IoTYPE(io) == '|') |
3028581b |
110 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 |
111 | else if (IoIFP(io) != IoOFP(io)) { |
112 | if (IoOFP(io)) { |
760ac839 |
113 | result = PerlIO_close(IoOFP(io)); |
114 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
115 | } |
116 | else |
760ac839 |
117 | result = PerlIO_close(IoIFP(io)); |
a687059c |
118 | } |
a687059c |
119 | else |
760ac839 |
120 | result = PerlIO_close(IoIFP(io)); |
3280af22 |
121 | if (result == EOF && fd > PL_maxsysfd) |
760ac839 |
122 | PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n", |
79072805 |
123 | GvENAME(gv)); |
8990e307 |
124 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c |
125 | } |
c07a80fd |
126 | |
127 | if (as_raw) { |
5ff3f7a4 |
128 | #if defined(O_LARGEFILE) |
129 | rawmode |= O_LARGEFILE; |
130 | #endif |
131 | |
9d116dd7 |
132 | #ifndef O_ACCMODE |
133 | #define O_ACCMODE 3 /* Assume traditional implementation */ |
134 | #endif |
5ff3f7a4 |
135 | |
9d116dd7 |
136 | switch (result = rawmode & O_ACCMODE) { |
137 | case O_RDONLY: |
138 | IoTYPE(io) = '<'; |
139 | break; |
140 | case O_WRONLY: |
141 | IoTYPE(io) = '>'; |
142 | break; |
143 | case O_RDWR: |
144 | default: |
145 | IoTYPE(io) = '+'; |
146 | break; |
147 | } |
148 | |
c07a80fd |
149 | writing = (result > 0); |
3028581b |
150 | fd = PerlLIO_open3(name, rawmode, rawperm); |
9d116dd7 |
151 | |
c07a80fd |
152 | if (fd == -1) |
153 | fp = NULL; |
154 | else { |
360e5741 |
155 | char *fpmode; |
9d116dd7 |
156 | if (result == O_RDONLY) |
360e5741 |
157 | fpmode = "r"; |
158 | #ifdef O_APPEND |
159 | else if (rawmode & O_APPEND) |
9d116dd7 |
160 | fpmode = (result == O_WRONLY) ? "a" : "a+"; |
360e5741 |
161 | #endif |
162 | else |
9d116dd7 |
163 | fpmode = (result == O_WRONLY) ? "w" : "r+"; |
360e5741 |
164 | fp = PerlIO_fdopen(fd, fpmode); |
c07a80fd |
165 | if (!fp) |
3028581b |
166 | PerlLIO_close(fd); |
c07a80fd |
167 | } |
a687059c |
168 | } |
c07a80fd |
169 | else { |
170 | char *myname; |
171 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
172 | int dodup; |
173 | |
174 | myname = savepvn(name, len); |
175 | SAVEFREEPV(myname); |
176 | name = myname; |
177 | while (len && isSPACE(name[len-1])) |
178 | name[--len] = '\0'; |
179 | |
180 | mode[0] = mode[1] = mode[2] = '\0'; |
181 | IoTYPE(io) = *name; |
182 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ |
183 | mode[1] = *name++; |
184 | --len; |
185 | writing = 1; |
a687059c |
186 | } |
c07a80fd |
187 | |
188 | if (*name == '|') { |
189 | /*SUPPRESS 530*/ |
190 | for (name++; isSPACE(*name); name++) ; |
06eaf0bc |
191 | if (*name == '\0') { /* command is missing 19990114 */ |
192 | dTHR; |
193 | if (ckWARN(WARN_PIPE)) |
194 | warner(WARN_PIPE, "Missing command in piped open"); |
195 | errno = EPIPE; |
196 | goto say_false; |
197 | } |
c07a80fd |
198 | if (strNE(name,"-")) |
199 | TAINT_ENV(); |
200 | TAINT_PROPER("piped open"); |
7b8d334a |
201 | if (name[strlen(name)-1] == '|') { |
d008e5eb |
202 | dTHR; |
7b8d334a |
203 | name[strlen(name)-1] = '\0' ; |
599cee73 |
204 | if (ckWARN(WARN_PIPE)) |
205 | warner(WARN_PIPE, "Can't do bidirectional pipe"); |
7b8d334a |
206 | } |
3028581b |
207 | fp = PerlProc_popen(name,"w"); |
c07a80fd |
208 | writing = 1; |
209 | } |
210 | else if (*name == '>') { |
211 | TAINT_PROPER("open"); |
bf38876a |
212 | name++; |
c07a80fd |
213 | if (*name == '>') { |
214 | mode[0] = IoTYPE(io) = 'a'; |
bf38876a |
215 | name++; |
a0d0e21e |
216 | } |
c07a80fd |
217 | else |
218 | mode[0] = 'w'; |
219 | writing = 1; |
220 | |
221 | if (*name == '&') { |
222 | duplicity: |
223 | dodup = 1; |
224 | name++; |
225 | if (*name == '=') { |
226 | dodup = 0; |
a0d0e21e |
227 | name++; |
c07a80fd |
228 | } |
229 | if (!*name && supplied_fp) |
230 | fp = supplied_fp; |
a0d0e21e |
231 | else { |
c07a80fd |
232 | /*SUPPRESS 530*/ |
233 | for (; isSPACE(*name); name++) ; |
234 | if (isDIGIT(*name)) |
235 | fd = atoi(name); |
236 | else { |
237 | IO* thatio; |
238 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); |
239 | thatio = GvIO(gv); |
240 | if (!thatio) { |
6e21c824 |
241 | #ifdef EINVAL |
c07a80fd |
242 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 |
243 | #endif |
c07a80fd |
244 | goto say_false; |
245 | } |
246 | if (IoIFP(thatio)) { |
760ac839 |
247 | fd = PerlIO_fileno(IoIFP(thatio)); |
c07a80fd |
248 | if (IoTYPE(thatio) == 's') |
249 | IoTYPE(io) = 's'; |
250 | } |
251 | else |
252 | fd = -1; |
a0d0e21e |
253 | } |
fec02dd3 |
254 | if (dodup) |
3028581b |
255 | fd = PerlLIO_dup(fd); |
3500f679 |
256 | else |
257 | was_fdopen = TRUE; |
760ac839 |
258 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd |
259 | if (dodup) |
3028581b |
260 | PerlLIO_close(fd); |
517844ec |
261 | } |
c07a80fd |
262 | } |
bf38876a |
263 | } |
c07a80fd |
264 | else { |
265 | /*SUPPRESS 530*/ |
266 | for (; isSPACE(*name); name++) ; |
267 | if (strEQ(name,"-")) { |
760ac839 |
268 | fp = PerlIO_stdout(); |
c07a80fd |
269 | IoTYPE(io) = '-'; |
270 | } |
271 | else { |
760ac839 |
272 | fp = PerlIO_open(name,mode); |
c07a80fd |
273 | } |
bf38876a |
274 | } |
275 | } |
c07a80fd |
276 | else if (*name == '<') { |
277 | /*SUPPRESS 530*/ |
278 | for (name++; isSPACE(*name); name++) ; |
bf38876a |
279 | mode[0] = 'r'; |
bf38876a |
280 | if (*name == '&') |
281 | goto duplicity; |
a687059c |
282 | if (strEQ(name,"-")) { |
760ac839 |
283 | fp = PerlIO_stdin(); |
8990e307 |
284 | IoTYPE(io) = '-'; |
a687059c |
285 | } |
bf38876a |
286 | else |
760ac839 |
287 | fp = PerlIO_open(name,mode); |
a687059c |
288 | } |
00db4c45 |
289 | else if (len > 1 && name[len-1] == '|') { |
a687059c |
290 | name[--len] = '\0'; |
99b89507 |
291 | while (len && isSPACE(name[len-1])) |
a687059c |
292 | name[--len] = '\0'; |
99b89507 |
293 | /*SUPPRESS 530*/ |
294 | for (; isSPACE(*name); name++) ; |
06eaf0bc |
295 | if (*name == '\0') { /* command is missing 19990114 */ |
296 | dTHR; |
297 | if (ckWARN(WARN_PIPE)) |
298 | warner(WARN_PIPE, "Missing command in piped open"); |
299 | errno = EPIPE; |
300 | goto say_false; |
301 | } |
79072805 |
302 | if (strNE(name,"-")) |
303 | TAINT_ENV(); |
304 | TAINT_PROPER("piped open"); |
3028581b |
305 | fp = PerlProc_popen(name,"r"); |
8990e307 |
306 | IoTYPE(io) = '|'; |
a687059c |
307 | } |
308 | else { |
8990e307 |
309 | IoTYPE(io) = '<'; |
99b89507 |
310 | /*SUPPRESS 530*/ |
311 | for (; isSPACE(*name); name++) ; |
a687059c |
312 | if (strEQ(name,"-")) { |
760ac839 |
313 | fp = PerlIO_stdin(); |
8990e307 |
314 | IoTYPE(io) = '-'; |
a687059c |
315 | } |
316 | else |
760ac839 |
317 | fp = PerlIO_open(name,"r"); |
a687059c |
318 | } |
319 | } |
bee1dbe2 |
320 | if (!fp) { |
d008e5eb |
321 | dTHR; |
599cee73 |
322 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == '<' && strchr(name, '\n')) |
22c35a8c |
323 | warner(WARN_NEWLINE, PL_warn_nl, "open"); |
6e21c824 |
324 | goto say_false; |
bee1dbe2 |
325 | } |
8990e307 |
326 | if (IoTYPE(io) && |
327 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { |
96827780 |
328 | dTHR; |
3280af22 |
329 | if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { |
760ac839 |
330 | (void)PerlIO_close(fp); |
6e21c824 |
331 | goto say_false; |
a687059c |
332 | } |
3280af22 |
333 | if (S_ISSOCK(PL_statbuf.st_mode)) |
8990e307 |
334 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 |
335 | #ifdef HAS_SOCKET |
336 | else if ( |
c623bd54 |
337 | #ifdef S_IFMT |
3280af22 |
338 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 |
339 | #else |
b28d0864 |
340 | !PL_statbuf.st_mode |
99b89507 |
341 | #endif |
342 | ) { |
96827780 |
343 | char tmpbuf[256]; |
344 | Sock_size_t buflen = sizeof tmpbuf; |
3028581b |
345 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e |
346 | &buflen) >= 0 |
347 | || errno != ENOTSOCK) |
8990e307 |
348 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 |
349 | /* but some return 0 for streams too, sigh */ |
350 | } |
bf38876a |
351 | #endif |
a687059c |
352 | } |
6e21c824 |
353 | if (saveifp) { /* must use old fp? */ |
760ac839 |
354 | fd = PerlIO_fileno(saveifp); |
6e21c824 |
355 | if (saveofp) { |
760ac839 |
356 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 |
357 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 |
358 | PerlIO_close(saveofp); |
99b89507 |
359 | if (fd > 2) |
360 | Safefree(saveofp); |
6e21c824 |
361 | } |
362 | } |
760ac839 |
363 | if (fd != PerlIO_fileno(fp)) { |
bee1dbe2 |
364 | int pid; |
79072805 |
365 | SV *sv; |
bee1dbe2 |
366 | |
3028581b |
367 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
3280af22 |
368 | sv = *av_fetch(PL_fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e |
369 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
370 | pid = SvIVX(sv); |
371 | SvIVX(sv) = 0; |
3280af22 |
372 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
a0d0e21e |
373 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
374 | SvIVX(sv) = pid; |
3500f679 |
375 | if (!was_fdopen) |
376 | PerlIO_close(fp); |
bee1dbe2 |
377 | |
6e21c824 |
378 | } |
379 | fp = saveifp; |
760ac839 |
380 | PerlIO_clearerr(fp); |
6e21c824 |
381 | } |
a0d0e21e |
382 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
a8710ca1 |
383 | { |
384 | int save_errno = errno; |
385 | fd = PerlIO_fileno(fp); |
386 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ |
387 | errno = save_errno; |
388 | } |
1462b684 |
389 | #endif |
8990e307 |
390 | IoIFP(io) = fp; |
bf38876a |
391 | if (writing) { |
96827780 |
392 | dTHR; |
8990e307 |
393 | if (IoTYPE(io) == 's' |
3280af22 |
394 | || (IoTYPE(io) == '>' && S_ISCHR(PL_statbuf.st_mode)) ) { |
760ac839 |
395 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
396 | PerlIO_close(fp); |
8990e307 |
397 | IoIFP(io) = Nullfp; |
6e21c824 |
398 | goto say_false; |
fe14fcc3 |
399 | } |
1462b684 |
400 | } |
401 | else |
8990e307 |
402 | IoOFP(io) = fp; |
bf38876a |
403 | } |
a687059c |
404 | return TRUE; |
6e21c824 |
405 | |
406 | say_false: |
8990e307 |
407 | IoIFP(io) = saveifp; |
408 | IoOFP(io) = saveofp; |
409 | IoTYPE(io) = savetype; |
6e21c824 |
410 | return FALSE; |
a687059c |
411 | } |
412 | |
760ac839 |
413 | PerlIO * |
8ac85365 |
414 | nextargv(register GV *gv) |
a687059c |
415 | { |
79072805 |
416 | register SV *sv; |
99b89507 |
417 | #ifndef FLEXFILENAMES |
c623bd54 |
418 | int filedev; |
419 | int fileino; |
99b89507 |
420 | #endif |
c623bd54 |
421 | int fileuid; |
422 | int filegid; |
fe14fcc3 |
423 | |
3280af22 |
424 | if (!PL_argvoutgv) |
425 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
426 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
427 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 |
428 | #ifdef HAS_FCHMOD |
3280af22 |
429 | (void)fchmod(PL_lastfd,PL_filemode); |
fe14fcc3 |
430 | #else |
b28d0864 |
431 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 |
432 | #endif |
433 | } |
3280af22 |
434 | PL_filemode = 0; |
79072805 |
435 | while (av_len(GvAV(gv)) >= 0) { |
11343788 |
436 | dTHR; |
85aff577 |
437 | STRLEN oldlen; |
79072805 |
438 | sv = av_shift(GvAV(gv)); |
8990e307 |
439 | SAVEFREESV(sv); |
79072805 |
440 | sv_setsv(GvSV(gv),sv); |
441 | SvSETMAGIC(GvSV(gv)); |
3280af22 |
442 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 |
443 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 |
444 | if (PL_inplace) { |
79072805 |
445 | TAINT_PROPER("inplace open"); |
3280af22 |
446 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 |
447 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e |
448 | return IoIFP(GvIOp(gv)); |
c623bd54 |
449 | } |
99b89507 |
450 | #ifndef FLEXFILENAMES |
b28d0864 |
451 | filedev = PL_statbuf.st_dev; |
452 | fileino = PL_statbuf.st_ino; |
99b89507 |
453 | #endif |
3280af22 |
454 | PL_filemode = PL_statbuf.st_mode; |
455 | fileuid = PL_statbuf.st_uid; |
456 | filegid = PL_statbuf.st_gid; |
457 | if (!S_ISREG(PL_filemode)) { |
c623bd54 |
458 | warn("Can't do inplace edit: %s is not a regular file", |
3280af22 |
459 | PL_oldname ); |
79072805 |
460 | do_close(gv,FALSE); |
c623bd54 |
461 | continue; |
462 | } |
3280af22 |
463 | if (*PL_inplace) { |
464 | char *star = strchr(PL_inplace, '*'); |
2d259d92 |
465 | if (star) { |
3280af22 |
466 | char *begin = PL_inplace; |
2d259d92 |
467 | sv_setpvn(sv, "", 0); |
468 | do { |
469 | sv_catpvn(sv, begin, star - begin); |
3280af22 |
470 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 |
471 | begin = ++star; |
472 | } while ((star = strchr(begin, '*'))); |
3d66d7bb |
473 | if (*begin) |
474 | sv_catpv(sv,begin); |
2d259d92 |
475 | } |
476 | else { |
3280af22 |
477 | sv_catpv(sv,PL_inplace); |
2d259d92 |
478 | } |
c623bd54 |
479 | #ifndef FLEXFILENAMES |
b28d0864 |
480 | if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
481 | && PL_statbuf.st_dev == filedev |
482 | && PL_statbuf.st_ino == fileino |
39e571d4 |
483 | #ifdef DJGPP |
484 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 |
485 | #endif |
486 | ) { |
752ebe84 |
487 | warn("Can't do inplace edit: %s would not be unique", |
463ee0b2 |
488 | SvPVX(sv) ); |
79072805 |
489 | do_close(gv,FALSE); |
c623bd54 |
490 | continue; |
491 | } |
492 | #endif |
fe14fcc3 |
493 | #ifdef HAS_RENAME |
bee1dbe2 |
494 | #ifndef DOSISH |
3280af22 |
495 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
c623bd54 |
496 | warn("Can't rename %s to %s: %s, skipping file", |
3280af22 |
497 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
498 | do_close(gv,FALSE); |
c623bd54 |
499 | continue; |
500 | } |
a687059c |
501 | #else |
79072805 |
502 | do_close(gv,FALSE); |
3028581b |
503 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 |
504 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 |
505 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff |
506 | #endif /* DOSISH */ |
ff8e2863 |
507 | #else |
463ee0b2 |
508 | (void)UNLINK(SvPVX(sv)); |
b28d0864 |
509 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
c623bd54 |
510 | warn("Can't rename %s to %s: %s, skipping file", |
b28d0864 |
511 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
512 | do_close(gv,FALSE); |
c623bd54 |
513 | continue; |
514 | } |
b28d0864 |
515 | (void)UNLINK(PL_oldname); |
a687059c |
516 | #endif |
517 | } |
518 | else { |
a8c18271 |
519 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 |
520 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 |
521 | if (UNLINK(PL_oldname) < 0) { |
85aff577 |
522 | warn("Can't remove %s: %s, skipping file", |
3280af22 |
523 | PL_oldname, Strerror(errno) ); |
79072805 |
524 | do_close(gv,FALSE); |
fe14fcc3 |
525 | continue; |
526 | } |
edc7bc49 |
527 | # endif |
ff8e2863 |
528 | #else |
463ee0b2 |
529 | croak("Can't do inplace edit without backup"); |
ff8e2863 |
530 | #endif |
a687059c |
531 | } |
532 | |
3280af22 |
533 | sv_setpvn(sv,">",!PL_inplace); |
534 | sv_catpvn(sv,PL_oldname,oldlen); |
748a9306 |
535 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 |
536 | #ifdef VMS |
537 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
538 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) { |
539 | #else |
3280af22 |
540 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
85aff577 |
541 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) { |
4119ab01 |
542 | #endif |
c623bd54 |
543 | warn("Can't do inplace edit on %s: %s", |
3280af22 |
544 | PL_oldname, Strerror(errno) ); |
79072805 |
545 | do_close(gv,FALSE); |
fe14fcc3 |
546 | continue; |
547 | } |
3280af22 |
548 | setdefout(PL_argvoutgv); |
549 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); |
550 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); |
fe14fcc3 |
551 | #ifdef HAS_FCHMOD |
3280af22 |
552 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c |
553 | #else |
3e3baf6d |
554 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
555 | /* Borland runtime creates a readonly file! */ |
b28d0864 |
556 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d |
557 | # endif |
a687059c |
558 | #endif |
3280af22 |
559 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 |
560 | #ifdef HAS_FCHOWN |
3280af22 |
561 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c |
562 | #else |
fe14fcc3 |
563 | #ifdef HAS_CHOWN |
b28d0864 |
564 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c |
565 | #endif |
b1248f16 |
566 | #endif |
fe14fcc3 |
567 | } |
a687059c |
568 | } |
a0d0e21e |
569 | return IoIFP(GvIOp(gv)); |
a687059c |
570 | } |
571 | else |
22fae026 |
572 | PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n", |
2d8e6c8d |
573 | SvPV(sv, oldlen), Strerror(errno)); |
a687059c |
574 | } |
3280af22 |
575 | if (PL_inplace) { |
576 | (void)do_close(PL_argvoutgv,FALSE); |
4633a7c4 |
577 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c |
578 | } |
579 | return Nullfp; |
580 | } |
581 | |
fe14fcc3 |
582 | #ifdef HAS_PIPE |
afd9f252 |
583 | void |
8ac85365 |
584 | do_pipe(SV *sv, GV *rgv, GV *wgv) |
afd9f252 |
585 | { |
79072805 |
586 | register IO *rstio; |
587 | register IO *wstio; |
afd9f252 |
588 | int fd[2]; |
589 | |
79072805 |
590 | if (!rgv) |
afd9f252 |
591 | goto badexit; |
79072805 |
592 | if (!wgv) |
afd9f252 |
593 | goto badexit; |
594 | |
a0d0e21e |
595 | rstio = GvIOn(rgv); |
596 | wstio = GvIOn(wgv); |
afd9f252 |
597 | |
a0d0e21e |
598 | if (IoIFP(rstio)) |
79072805 |
599 | do_close(rgv,FALSE); |
a0d0e21e |
600 | if (IoIFP(wstio)) |
79072805 |
601 | do_close(wgv,FALSE); |
afd9f252 |
602 | |
3028581b |
603 | if (PerlProc_pipe(fd) < 0) |
afd9f252 |
604 | goto badexit; |
760ac839 |
605 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
606 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); |
8990e307 |
607 | IoIFP(wstio) = IoOFP(wstio); |
608 | IoTYPE(rstio) = '<'; |
609 | IoTYPE(wstio) = '>'; |
610 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 |
611 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b |
612 | else PerlLIO_close(fd[0]); |
760ac839 |
613 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b |
614 | else PerlLIO_close(fd[1]); |
fe14fcc3 |
615 | goto badexit; |
616 | } |
afd9f252 |
617 | |
3280af22 |
618 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 |
619 | return; |
620 | |
621 | badexit: |
3280af22 |
622 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 |
623 | return; |
624 | } |
b1248f16 |
625 | #endif |
afd9f252 |
626 | |
517844ec |
627 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c |
628 | bool |
517844ec |
629 | do_close(GV *gv, bool not_implicit) |
a687059c |
630 | { |
1193dd27 |
631 | bool retval; |
632 | IO *io; |
a687059c |
633 | |
79072805 |
634 | if (!gv) |
3280af22 |
635 | gv = PL_argvgv; |
a0d0e21e |
636 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 |
637 | if (not_implicit) |
638 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 |
639 | return FALSE; |
99b89507 |
640 | } |
79072805 |
641 | io = GvIO(gv); |
642 | if (!io) { /* never opened */ |
1d2dff63 |
643 | if (not_implicit) { |
d008e5eb |
644 | dTHR; |
599cee73 |
645 | if (ckWARN(WARN_UNOPENED)) |
646 | warner(WARN_UNOPENED, |
647 | "Close on unopened file <%s>",GvENAME(gv)); |
1d2dff63 |
648 | SETERRNO(EBADF,SS$_IVCHAN); |
649 | } |
a687059c |
650 | return FALSE; |
651 | } |
1193dd27 |
652 | retval = io_close(io); |
517844ec |
653 | if (not_implicit) { |
1193dd27 |
654 | IoLINES(io) = 0; |
655 | IoPAGE(io) = 0; |
656 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
657 | } |
658 | IoTYPE(io) = ' '; |
659 | return retval; |
660 | } |
661 | |
662 | bool |
8ac85365 |
663 | io_close(IO *io) |
1193dd27 |
664 | { |
665 | bool retval = FALSE; |
666 | int status; |
667 | |
8990e307 |
668 | if (IoIFP(io)) { |
669 | if (IoTYPE(io) == '|') { |
3028581b |
670 | status = PerlProc_pclose(IoIFP(io)); |
f86702cc |
671 | STATUS_NATIVE_SET(status); |
1e422769 |
672 | retval = (STATUS_POSIX == 0); |
a687059c |
673 | } |
8990e307 |
674 | else if (IoTYPE(io) == '-') |
a687059c |
675 | retval = TRUE; |
676 | else { |
8990e307 |
677 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 |
678 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
679 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
680 | } |
681 | else |
760ac839 |
682 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c |
683 | } |
8990e307 |
684 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 |
685 | } |
20408e3c |
686 | else { |
687 | SETERRNO(EBADF,SS$_IVCHAN); |
688 | } |
1193dd27 |
689 | |
a687059c |
690 | return retval; |
691 | } |
692 | |
693 | bool |
8ac85365 |
694 | do_eof(GV *gv) |
a687059c |
695 | { |
11343788 |
696 | dTHR; |
79072805 |
697 | register IO *io; |
a687059c |
698 | int ch; |
699 | |
79072805 |
700 | io = GvIO(gv); |
a687059c |
701 | |
79072805 |
702 | if (!io) |
a687059c |
703 | return TRUE; |
704 | |
8990e307 |
705 | while (IoIFP(io)) { |
a687059c |
706 | |
760ac839 |
707 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
708 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
709 | return FALSE; /* this is the most usual case */ |
710 | } |
a687059c |
711 | |
760ac839 |
712 | ch = PerlIO_getc(IoIFP(io)); |
a687059c |
713 | if (ch != EOF) { |
760ac839 |
714 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c |
715 | return FALSE; |
716 | } |
760ac839 |
717 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
718 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
719 | PerlIO_set_cnt(IoIFP(io),-1); |
720 | } |
533c011a |
721 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
3280af22 |
722 | if (!nextargv(PL_argvgv)) /* get another fp handy */ |
a687059c |
723 | return TRUE; |
724 | } |
725 | else |
726 | return TRUE; /* normal fp, definitely end of file */ |
727 | } |
728 | return TRUE; |
729 | } |
730 | |
5ff3f7a4 |
731 | Off_t |
8ac85365 |
732 | do_tell(GV *gv) |
a687059c |
733 | { |
79072805 |
734 | register IO *io; |
96e4d5b1 |
735 | register PerlIO *fp; |
a687059c |
736 | |
96e4d5b1 |
737 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
738 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 |
739 | if (PerlIO_eof(fp)) |
740 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
741 | #endif |
8903cb82 |
742 | return PerlIO_tell(fp); |
96e4d5b1 |
743 | } |
d008e5eb |
744 | { |
745 | dTHR; |
746 | if (ckWARN(WARN_UNOPENED)) |
747 | warner(WARN_UNOPENED, "tell() on unopened file"); |
748 | } |
748a9306 |
749 | SETERRNO(EBADF,RMS$_IFI); |
5ff3f7a4 |
750 | return (Off_t)-1; |
a687059c |
751 | } |
752 | |
753 | bool |
5ff3f7a4 |
754 | do_seek(GV *gv, Off_t pos, int whence) |
a687059c |
755 | { |
79072805 |
756 | register IO *io; |
137443ea |
757 | register PerlIO *fp; |
a687059c |
758 | |
137443ea |
759 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
760 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea |
761 | if (PerlIO_eof(fp)) |
762 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
763 | #endif |
8903cb82 |
764 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea |
765 | } |
d008e5eb |
766 | { |
767 | dTHR; |
768 | if (ckWARN(WARN_UNOPENED)) |
769 | warner(WARN_UNOPENED, "seek() on unopened file"); |
770 | } |
748a9306 |
771 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
772 | return FALSE; |
773 | } |
774 | |
97cc44eb |
775 | Off_t |
776 | do_sysseek(GV *gv, Off_t pos, int whence) |
8903cb82 |
777 | { |
778 | register IO *io; |
779 | register PerlIO *fp; |
780 | |
781 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) |
3028581b |
782 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
d008e5eb |
783 | { |
784 | dTHR; |
785 | if (ckWARN(WARN_UNOPENED)) |
786 | warner(WARN_UNOPENED, "sysseek() on unopened file"); |
787 | } |
8903cb82 |
788 | SETERRNO(EBADF,RMS$_IFI); |
789 | return -1L; |
790 | } |
791 | |
6ff81951 |
792 | int |
793 | do_binmode(PerlIO *fp, int iotype, int flag) |
794 | { |
795 | if (flag != TRUE) |
796 | croak("panic: unsetting binmode"); /* Not implemented yet */ |
797 | #ifdef DOSISH |
61ae2fbf |
798 | #if defined(atarist) || defined(__MINT__) |
6ff81951 |
799 | if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN)) |
800 | return 1; |
801 | else |
802 | return 0; |
803 | #else |
804 | if (PerlLIO_setmode(PerlIO_fileno(fp), OP_BINARY) != -1) { |
805 | #if defined(WIN32) && defined(__BORLANDC__) |
806 | /* The translation mode of the stream is maintained independent |
807 | * of the translation mode of the fd in the Borland RTL (heavy |
808 | * digging through their runtime sources reveal). User has to |
809 | * set the mode explicitly for the stream (though they don't |
810 | * document this anywhere). GSAR 97-5-24 |
811 | */ |
812 | PerlIO_seek(fp,0L,0); |
873ef191 |
813 | ((FILE*)fp)->flags |= _F_BIN; |
6ff81951 |
814 | #endif |
815 | return 1; |
816 | } |
817 | else |
818 | return 0; |
819 | #endif |
820 | #else |
821 | #if defined(USEMYBINMODE) |
822 | if (my_binmode(fp,iotype) != NULL) |
823 | return 1; |
824 | else |
825 | return 0; |
826 | #else |
827 | return 1; |
828 | #endif |
829 | #endif |
830 | } |
831 | |
a0d0e21e |
832 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 |
833 | /* code courtesy of William Kucharski */ |
fe14fcc3 |
834 | #define HAS_CHSIZE |
6eb13c3b |
835 | |
517844ec |
836 | I32 my_chsize(fd, length) |
79072805 |
837 | I32 fd; /* file descriptor */ |
85e6fe83 |
838 | Off_t length; /* length to set file to */ |
6eb13c3b |
839 | { |
6eb13c3b |
840 | struct flock fl; |
841 | struct stat filebuf; |
842 | |
3028581b |
843 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b |
844 | return -1; |
845 | |
846 | if (filebuf.st_size < length) { |
847 | |
848 | /* extend file length */ |
849 | |
3028581b |
850 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b |
851 | return -1; |
852 | |
853 | /* write a "0" byte */ |
854 | |
3028581b |
855 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b |
856 | return -1; |
857 | } |
858 | else { |
859 | /* truncate length */ |
860 | |
861 | fl.l_whence = 0; |
862 | fl.l_len = 0; |
863 | fl.l_start = length; |
a0d0e21e |
864 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b |
865 | |
866 | /* |
a0d0e21e |
867 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b |
868 | * fcntl(2), which truncates the file so that it ends at the |
869 | * position indicated by fl.l_start. |
870 | * |
871 | * Will minor miracles never cease? |
872 | */ |
873 | |
a0d0e21e |
874 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b |
875 | return -1; |
876 | |
877 | } |
878 | |
879 | return 0; |
880 | } |
a0d0e21e |
881 | #endif /* F_FREESP */ |
ff8e2863 |
882 | |
a687059c |
883 | bool |
6acef3b7 |
884 | do_print(register SV *sv, PerlIO *fp) |
a687059c |
885 | { |
886 | register char *tmps; |
463ee0b2 |
887 | STRLEN len; |
a687059c |
888 | |
79072805 |
889 | /* assuming fp is checked earlier */ |
890 | if (!sv) |
891 | return TRUE; |
3280af22 |
892 | if (PL_ofmt) { |
8990e307 |
893 | if (SvGMAGICAL(sv)) |
79072805 |
894 | mg_get(sv); |
463ee0b2 |
895 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
3280af22 |
896 | PerlIO_printf(fp, PL_ofmt, (double)SvIVX(sv)); |
760ac839 |
897 | return !PerlIO_error(fp); |
79072805 |
898 | } |
463ee0b2 |
899 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 |
900 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 |
901 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 |
902 | return !PerlIO_error(fp); |
79072805 |
903 | } |
a687059c |
904 | } |
79072805 |
905 | switch (SvTYPE(sv)) { |
906 | case SVt_NULL: |
d008e5eb |
907 | { |
908 | dTHR; |
909 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c |
910 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb |
911 | } |
ff8e2863 |
912 | return TRUE; |
79072805 |
913 | case SVt_IV: |
a0d0e21e |
914 | if (SvIOK(sv)) { |
915 | if (SvGMAGICAL(sv)) |
916 | mg_get(sv); |
760ac839 |
917 | PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); |
918 | return !PerlIO_error(fp); |
a0d0e21e |
919 | } |
920 | /* FALL THROUGH */ |
79072805 |
921 | default: |
463ee0b2 |
922 | tmps = SvPV(sv, len); |
79072805 |
923 | break; |
ff8e2863 |
924 | } |
760ac839 |
925 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c |
926 | return FALSE; |
760ac839 |
927 | return !PerlIO_error(fp); |
a687059c |
928 | } |
929 | |
79072805 |
930 | I32 |
8ac85365 |
931 | my_stat(ARGSproto) |
a687059c |
932 | { |
4e35701f |
933 | djSP; |
79072805 |
934 | IO *io; |
748a9306 |
935 | GV* tmpgv; |
79072805 |
936 | |
533c011a |
937 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
938 | EXTEND(SP,1); |
748a9306 |
939 | tmpgv = cGVOP->op_gv; |
940 | do_fstat: |
941 | io = GvIO(tmpgv); |
8990e307 |
942 | if (io && IoIFP(io)) { |
3280af22 |
943 | PL_statgv = tmpgv; |
944 | sv_setpv(PL_statname,""); |
945 | PL_laststype = OP_STAT; |
946 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); |
a687059c |
947 | } |
948 | else { |
3280af22 |
949 | if (tmpgv == PL_defgv) |
950 | return PL_laststatval; |
599cee73 |
951 | if (ckWARN(WARN_UNOPENED)) |
952 | warner(WARN_UNOPENED, "Stat on unopened file <%s>", |
748a9306 |
953 | GvENAME(tmpgv)); |
3280af22 |
954 | PL_statgv = Nullgv; |
955 | sv_setpv(PL_statname,""); |
956 | return (PL_laststatval = -1); |
a687059c |
957 | } |
958 | } |
959 | else { |
748a9306 |
960 | SV* sv = POPs; |
4b74e3fb |
961 | char *s; |
2d8e6c8d |
962 | STRLEN n_a; |
79072805 |
963 | PUTBACK; |
748a9306 |
964 | if (SvTYPE(sv) == SVt_PVGV) { |
965 | tmpgv = (GV*)sv; |
966 | goto do_fstat; |
967 | } |
968 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { |
969 | tmpgv = (GV*)SvRV(sv); |
970 | goto do_fstat; |
971 | } |
972 | |
2d8e6c8d |
973 | s = SvPV(sv, n_a); |
3280af22 |
974 | PL_statgv = Nullgv; |
975 | sv_setpv(PL_statname, s); |
976 | PL_laststype = OP_STAT; |
977 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); |
599cee73 |
978 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
22c35a8c |
979 | warner(WARN_NEWLINE, PL_warn_nl, "stat"); |
3280af22 |
980 | return PL_laststatval; |
a687059c |
981 | } |
982 | } |
983 | |
79072805 |
984 | I32 |
8ac85365 |
985 | my_lstat(ARGSproto) |
c623bd54 |
986 | { |
4e35701f |
987 | djSP; |
79072805 |
988 | SV *sv; |
2d8e6c8d |
989 | STRLEN n_a; |
533c011a |
990 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
991 | EXTEND(SP,1); |
3280af22 |
992 | if (cGVOP->op_gv == PL_defgv) { |
993 | if (PL_laststype != OP_LSTAT) |
463ee0b2 |
994 | croak("The stat preceding -l _ wasn't an lstat"); |
3280af22 |
995 | return PL_laststatval; |
fe14fcc3 |
996 | } |
463ee0b2 |
997 | croak("You can't use -l on a filehandle"); |
fe14fcc3 |
998 | } |
c623bd54 |
999 | |
3280af22 |
1000 | PL_laststype = OP_LSTAT; |
1001 | PL_statgv = Nullgv; |
79072805 |
1002 | sv = POPs; |
1003 | PUTBACK; |
2d8e6c8d |
1004 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
fe14fcc3 |
1005 | #ifdef HAS_LSTAT |
2d8e6c8d |
1006 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
c623bd54 |
1007 | #else |
2d8e6c8d |
1008 | PL_laststatval = PerlLIO_stat(SvPV(sv, n_a),&PL_statcache); |
c623bd54 |
1009 | #endif |
2d8e6c8d |
1010 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
22c35a8c |
1011 | warner(WARN_NEWLINE, PL_warn_nl, "lstat"); |
3280af22 |
1012 | return PL_laststatval; |
c623bd54 |
1013 | } |
1014 | |
a687059c |
1015 | bool |
8ac85365 |
1016 | do_aexec(SV *really, register SV **mark, register SV **sp) |
a687059c |
1017 | { |
a687059c |
1018 | register char **a; |
a687059c |
1019 | char *tmps; |
2d8e6c8d |
1020 | STRLEN n_a; |
a687059c |
1021 | |
79072805 |
1022 | if (sp > mark) { |
11343788 |
1023 | dTHR; |
3280af22 |
1024 | New(401,PL_Argv, sp - mark + 1, char*); |
1025 | a = PL_Argv; |
79072805 |
1026 | while (++mark <= sp) { |
1027 | if (*mark) |
2d8e6c8d |
1028 | *a++ = SvPVx(*mark, n_a); |
a687059c |
1029 | else |
1030 | *a++ = ""; |
1031 | } |
1032 | *a = Nullch; |
3280af22 |
1033 | if (*PL_Argv[0] != '/') /* will execvp use PATH? */ |
79072805 |
1034 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
2d8e6c8d |
1035 | if (really && *(tmps = SvPV(really, n_a))) |
3280af22 |
1036 | PerlProc_execvp(tmps,PL_Argv); |
a687059c |
1037 | else |
3280af22 |
1038 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
599cee73 |
1039 | if (ckWARN(WARN_EXEC)) |
1040 | warner(WARN_EXEC, "Can't exec \"%s\": %s", |
1041 | PL_Argv[0], Strerror(errno)); |
a687059c |
1042 | } |
bee1dbe2 |
1043 | do_execfree(); |
a687059c |
1044 | return FALSE; |
1045 | } |
1046 | |
fe14fcc3 |
1047 | void |
8ac85365 |
1048 | do_execfree(void) |
ff8e2863 |
1049 | { |
3280af22 |
1050 | if (PL_Argv) { |
1051 | Safefree(PL_Argv); |
1052 | PL_Argv = Null(char **); |
ff8e2863 |
1053 | } |
3280af22 |
1054 | if (PL_Cmd) { |
1055 | Safefree(PL_Cmd); |
1056 | PL_Cmd = Nullch; |
ff8e2863 |
1057 | } |
1058 | } |
1059 | |
39e571d4 |
1060 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) |
760ac839 |
1061 | |
a687059c |
1062 | bool |
8ac85365 |
1063 | do_exec(char *cmd) |
a687059c |
1064 | { |
1065 | register char **a; |
1066 | register char *s; |
a687059c |
1067 | char flags[10]; |
1068 | |
748a9306 |
1069 | while (*cmd && isSPACE(*cmd)) |
1070 | cmd++; |
1071 | |
a687059c |
1072 | /* save an extra exec if possible */ |
1073 | |
bf38876a |
1074 | #ifdef CSH |
3280af22 |
1075 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { |
a687059c |
1076 | strcpy(flags,"-c"); |
3280af22 |
1077 | s = cmd+PL_cshlen+3; |
a687059c |
1078 | if (*s == 'f') { |
1079 | s++; |
1080 | strcat(flags,"f"); |
1081 | } |
1082 | if (*s == ' ') |
1083 | s++; |
1084 | if (*s++ == '\'') { |
1085 | char *ncmd = s; |
1086 | |
1087 | while (*s) |
1088 | s++; |
1089 | if (s[-1] == '\n') |
1090 | *--s = '\0'; |
1091 | if (s[-1] == '\'') { |
1092 | *--s = '\0'; |
3280af22 |
1093 | PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
1094 | *s = '\''; |
1095 | return FALSE; |
1096 | } |
1097 | } |
1098 | } |
bf38876a |
1099 | #endif /* CSH */ |
a687059c |
1100 | |
1101 | /* see if there are shell metacharacters in it */ |
1102 | |
748a9306 |
1103 | if (*cmd == '.' && isSPACE(cmd[1])) |
1104 | goto doshell; |
1105 | |
1106 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
1107 | goto doshell; |
1108 | |
99b89507 |
1109 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 |
1110 | if (*s == '=') |
1111 | goto doshell; |
748a9306 |
1112 | |
a687059c |
1113 | for (s = cmd; *s; s++) { |
93a17b20 |
1114 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c |
1115 | if (*s == '\n' && !s[1]) { |
1116 | *s = '\0'; |
1117 | break; |
1118 | } |
1119 | doshell: |
3280af22 |
1120 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
a687059c |
1121 | return FALSE; |
1122 | } |
1123 | } |
748a9306 |
1124 | |
3280af22 |
1125 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1126 | PL_Cmd = savepvn(cmd, s-cmd); |
1127 | a = PL_Argv; |
1128 | for (s = PL_Cmd; *s;) { |
99b89507 |
1129 | while (*s && isSPACE(*s)) s++; |
a687059c |
1130 | if (*s) |
1131 | *(a++) = s; |
99b89507 |
1132 | while (*s && !isSPACE(*s)) s++; |
a687059c |
1133 | if (*s) |
1134 | *s++ = '\0'; |
1135 | } |
1136 | *a = Nullch; |
3280af22 |
1137 | if (PL_Argv[0]) { |
1138 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
b1248f16 |
1139 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1140 | do_execfree(); |
a687059c |
1141 | goto doshell; |
b1248f16 |
1142 | } |
d008e5eb |
1143 | { |
1144 | dTHR; |
1145 | if (ckWARN(WARN_EXEC)) |
1146 | warner(WARN_EXEC, "Can't exec \"%s\": %s", |
1147 | PL_Argv[0], Strerror(errno)); |
1148 | } |
a687059c |
1149 | } |
ff8e2863 |
1150 | do_execfree(); |
a687059c |
1151 | return FALSE; |
1152 | } |
1153 | |
6890e559 |
1154 | #endif /* OS2 || WIN32 */ |
760ac839 |
1155 | |
79072805 |
1156 | I32 |
8ac85365 |
1157 | apply(I32 type, register SV **mark, register SV **sp) |
a687059c |
1158 | { |
11343788 |
1159 | dTHR; |
79072805 |
1160 | register I32 val; |
1161 | register I32 val2; |
1162 | register I32 tot = 0; |
20408e3c |
1163 | char *what; |
a687059c |
1164 | char *s; |
79072805 |
1165 | SV **oldmark = mark; |
2d8e6c8d |
1166 | STRLEN n_a; |
a687059c |
1167 | |
20408e3c |
1168 | #define APPLY_TAINT_PROPER() \ |
3280af22 |
1169 | STMT_START { \ |
17406bd6 |
1170 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 |
1171 | } STMT_END |
20408e3c |
1172 | |
1173 | /* This is a first heuristic; it doesn't catch tainting magic. */ |
3280af22 |
1174 | if (PL_tainting) { |
463ee0b2 |
1175 | while (++mark <= sp) { |
bbce6d69 |
1176 | if (SvTAINTED(*mark)) { |
1177 | TAINT; |
1178 | break; |
1179 | } |
463ee0b2 |
1180 | } |
1181 | mark = oldmark; |
1182 | } |
a687059c |
1183 | switch (type) { |
79072805 |
1184 | case OP_CHMOD: |
20408e3c |
1185 | what = "chmod"; |
1186 | APPLY_TAINT_PROPER(); |
79072805 |
1187 | if (++mark <= sp) { |
463ee0b2 |
1188 | val = SvIVx(*mark); |
20408e3c |
1189 | APPLY_TAINT_PROPER(); |
1190 | tot = sp - mark; |
79072805 |
1191 | while (++mark <= sp) { |
2d8e6c8d |
1192 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1193 | APPLY_TAINT_PROPER(); |
1194 | if (PerlLIO_chmod(name, val)) |
a687059c |
1195 | tot--; |
1196 | } |
1197 | } |
1198 | break; |
fe14fcc3 |
1199 | #ifdef HAS_CHOWN |
79072805 |
1200 | case OP_CHOWN: |
20408e3c |
1201 | what = "chown"; |
1202 | APPLY_TAINT_PROPER(); |
79072805 |
1203 | if (sp - mark > 2) { |
463ee0b2 |
1204 | val = SvIVx(*++mark); |
1205 | val2 = SvIVx(*++mark); |
20408e3c |
1206 | APPLY_TAINT_PROPER(); |
a0d0e21e |
1207 | tot = sp - mark; |
79072805 |
1208 | while (++mark <= sp) { |
2d8e6c8d |
1209 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1210 | APPLY_TAINT_PROPER(); |
36660982 |
1211 | if (PerlLIO_chown(name, val, val2)) |
a687059c |
1212 | tot--; |
1213 | } |
1214 | } |
1215 | break; |
b1248f16 |
1216 | #endif |
dd64f1c3 |
1217 | /* |
1218 | XXX Should we make lchown() directly available from perl? |
1219 | For now, we'll let Configure test for HAS_LCHOWN, but do |
1220 | nothing in the core. |
1221 | --AD 5/1998 |
1222 | */ |
fe14fcc3 |
1223 | #ifdef HAS_KILL |
79072805 |
1224 | case OP_KILL: |
20408e3c |
1225 | what = "kill"; |
1226 | APPLY_TAINT_PROPER(); |
55497cff |
1227 | if (mark == sp) |
1228 | break; |
2d8e6c8d |
1229 | s = SvPVx(*++mark, n_a); |
79072805 |
1230 | if (isUPPER(*s)) { |
1231 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1232 | s += 3; |
1233 | if (!(val = whichsig(s))) |
463ee0b2 |
1234 | croak("Unrecognized signal name \"%s\"",s); |
79072805 |
1235 | } |
1236 | else |
463ee0b2 |
1237 | val = SvIVx(*mark); |
20408e3c |
1238 | APPLY_TAINT_PROPER(); |
1239 | tot = sp - mark; |
3595fcef |
1240 | #ifdef VMS |
1241 | /* kill() doesn't do process groups (job trees?) under VMS */ |
1242 | if (val < 0) val = -val; |
1243 | if (val == SIGKILL) { |
1244 | # include <starlet.h> |
1245 | /* Use native sys$delprc() to insure that target process is |
1246 | * deleted; supervisor-mode images don't pay attention to |
1247 | * CRTL's emulation of Unix-style signals and kill() |
1248 | */ |
1249 | while (++mark <= sp) { |
1250 | I32 proc = SvIVx(*mark); |
1251 | register unsigned long int __vmssts; |
20408e3c |
1252 | APPLY_TAINT_PROPER(); |
3595fcef |
1253 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1254 | tot--; |
1255 | switch (__vmssts) { |
1256 | case SS$_NONEXPR: |
1257 | case SS$_NOSUCHNODE: |
1258 | SETERRNO(ESRCH,__vmssts); |
1259 | break; |
1260 | case SS$_NOPRIV: |
1261 | SETERRNO(EPERM,__vmssts); |
1262 | break; |
1263 | default: |
1264 | SETERRNO(EVMSERR,__vmssts); |
1265 | } |
1266 | } |
1267 | } |
1268 | break; |
1269 | } |
1270 | #endif |
79072805 |
1271 | if (val < 0) { |
1272 | val = -val; |
1273 | while (++mark <= sp) { |
463ee0b2 |
1274 | I32 proc = SvIVx(*mark); |
20408e3c |
1275 | APPLY_TAINT_PROPER(); |
fe14fcc3 |
1276 | #ifdef HAS_KILLPG |
3028581b |
1277 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c |
1278 | #else |
3028581b |
1279 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c |
1280 | #endif |
79072805 |
1281 | tot--; |
a687059c |
1282 | } |
79072805 |
1283 | } |
1284 | else { |
1285 | while (++mark <= sp) { |
20408e3c |
1286 | I32 proc = SvIVx(*mark); |
1287 | APPLY_TAINT_PROPER(); |
1288 | if (PerlProc_kill(proc, val)) |
79072805 |
1289 | tot--; |
a687059c |
1290 | } |
1291 | } |
1292 | break; |
b1248f16 |
1293 | #endif |
79072805 |
1294 | case OP_UNLINK: |
20408e3c |
1295 | what = "unlink"; |
1296 | APPLY_TAINT_PROPER(); |
79072805 |
1297 | tot = sp - mark; |
1298 | while (++mark <= sp) { |
2d8e6c8d |
1299 | s = SvPVx(*mark, n_a); |
20408e3c |
1300 | APPLY_TAINT_PROPER(); |
3280af22 |
1301 | if (PL_euid || PL_unsafe) { |
a687059c |
1302 | if (UNLINK(s)) |
1303 | tot--; |
1304 | } |
1305 | else { /* don't let root wipe out directories without -U */ |
fe14fcc3 |
1306 | #ifdef HAS_LSTAT |
3280af22 |
1307 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c |
1308 | #else |
b28d0864 |
1309 | if (PerlLIO_stat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c |
1310 | #endif |
a687059c |
1311 | tot--; |
1312 | else { |
1313 | if (UNLINK(s)) |
1314 | tot--; |
1315 | } |
1316 | } |
1317 | } |
1318 | break; |
a0d0e21e |
1319 | #ifdef HAS_UTIME |
79072805 |
1320 | case OP_UTIME: |
20408e3c |
1321 | what = "utime"; |
1322 | APPLY_TAINT_PROPER(); |
79072805 |
1323 | if (sp - mark > 2) { |
748a9306 |
1324 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 |
1325 | struct utimbuf utbuf; |
1326 | #else |
a687059c |
1327 | struct { |
663a0e37 |
1328 | long actime; |
1329 | long modtime; |
a687059c |
1330 | } utbuf; |
663a0e37 |
1331 | #endif |
a687059c |
1332 | |
afd9f252 |
1333 | Zero(&utbuf, sizeof utbuf, char); |
517844ec |
1334 | #ifdef BIG_TIME |
1335 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1336 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ |
1337 | #else |
463ee0b2 |
1338 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1339 | utbuf.modtime = SvIVx(*++mark); /* time modified */ |
517844ec |
1340 | #endif |
20408e3c |
1341 | APPLY_TAINT_PROPER(); |
79072805 |
1342 | tot = sp - mark; |
1343 | while (++mark <= sp) { |
2d8e6c8d |
1344 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1345 | APPLY_TAINT_PROPER(); |
1346 | if (PerlLIO_utime(name, &utbuf)) |
a687059c |
1347 | tot--; |
1348 | } |
a687059c |
1349 | } |
1350 | else |
79072805 |
1351 | tot = 0; |
a687059c |
1352 | break; |
a0d0e21e |
1353 | #endif |
a687059c |
1354 | } |
1355 | return tot; |
20408e3c |
1356 | |
20408e3c |
1357 | #undef APPLY_TAINT_PROPER |
a687059c |
1358 | } |
1359 | |
1360 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
a0d0e21e |
1361 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 |
1362 | I32 |
8ac85365 |
1363 | cando(I32 bit, I32 effective, register struct stat *statbufp) |
a687059c |
1364 | { |
bee1dbe2 |
1365 | #ifdef DOSISH |
fe14fcc3 |
1366 | /* [Comments and code from Len Reed] |
1367 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write |
1368 | * to write-protected files. The execute permission bit is set |
1369 | * by the Miscrosoft C library stat() function for the following: |
1370 | * .exe files |
1371 | * .com files |
1372 | * .bat files |
1373 | * directories |
1374 | * All files and directories are readable. |
1375 | * Directories and special files, e.g. "CON", cannot be |
1376 | * write-protected. |
1377 | * [Comment by Tom Dinger -- a directory can have the write-protect |
1378 | * bit set in the file system, but DOS permits changes to |
1379 | * the directory anyway. In addition, all bets are off |
1380 | * here for networked software, such as Novell and |
1381 | * Sun's PC-NFS.] |
1382 | */ |
1383 | |
bee1dbe2 |
1384 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1385 | * too so it will actually look into the files for magic numbers |
1386 | */ |
fe14fcc3 |
1387 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1388 | |
55497cff |
1389 | #else /* ! DOSISH */ |
3280af22 |
1390 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
c623bd54 |
1391 | if (bit == S_IXUSR) { |
1392 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c |
1393 | return TRUE; |
1394 | } |
1395 | else |
1396 | return TRUE; /* root reads and writes anything */ |
1397 | return FALSE; |
1398 | } |
3280af22 |
1399 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
a687059c |
1400 | if (statbufp->st_mode & bit) |
1401 | return TRUE; /* ok as "user" */ |
1402 | } |
79072805 |
1403 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c |
1404 | if (statbufp->st_mode & bit >> 3) |
1405 | return TRUE; /* ok as "group" */ |
1406 | } |
1407 | else if (statbufp->st_mode & bit >> 6) |
1408 | return TRUE; /* ok as "other" */ |
1409 | return FALSE; |
55497cff |
1410 | #endif /* ! DOSISH */ |
a687059c |
1411 | } |
a0d0e21e |
1412 | #endif /* ! VMS */ |
a687059c |
1413 | |
79072805 |
1414 | I32 |
8ac85365 |
1415 | ingroup(I32 testgid, I32 effective) |
a687059c |
1416 | { |
3280af22 |
1417 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c |
1418 | return TRUE; |
fe14fcc3 |
1419 | #ifdef HAS_GETGROUPS |
a687059c |
1420 | #ifndef NGROUPS |
1421 | #define NGROUPS 32 |
1422 | #endif |
1423 | { |
a0d0e21e |
1424 | Groups_t gary[NGROUPS]; |
79072805 |
1425 | I32 anum; |
a687059c |
1426 | |
1427 | anum = getgroups(NGROUPS,gary); |
1428 | while (--anum >= 0) |
1429 | if (gary[anum] == testgid) |
1430 | return TRUE; |
1431 | } |
1432 | #endif |
1433 | return FALSE; |
1434 | } |
c2ab57d4 |
1435 | |
fe14fcc3 |
1436 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
1437 | |
79072805 |
1438 | I32 |
8ac85365 |
1439 | do_ipcget(I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1440 | { |
11343788 |
1441 | dTHR; |
c2ab57d4 |
1442 | key_t key; |
79072805 |
1443 | I32 n, flags; |
c2ab57d4 |
1444 | |
463ee0b2 |
1445 | key = (key_t)SvNVx(*++mark); |
1446 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); |
1447 | flags = SvIVx(*++mark); |
748a9306 |
1448 | SETERRNO(0,0); |
c2ab57d4 |
1449 | switch (optype) |
1450 | { |
fe14fcc3 |
1451 | #ifdef HAS_MSG |
79072805 |
1452 | case OP_MSGGET: |
c2ab57d4 |
1453 | return msgget(key, flags); |
e5d73d77 |
1454 | #endif |
fe14fcc3 |
1455 | #ifdef HAS_SEM |
79072805 |
1456 | case OP_SEMGET: |
c2ab57d4 |
1457 | return semget(key, n, flags); |
e5d73d77 |
1458 | #endif |
fe14fcc3 |
1459 | #ifdef HAS_SHM |
79072805 |
1460 | case OP_SHMGET: |
c2ab57d4 |
1461 | return shmget(key, n, flags); |
e5d73d77 |
1462 | #endif |
fe14fcc3 |
1463 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1464 | default: |
4369b173 |
1465 | croak("%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1466 | #endif |
c2ab57d4 |
1467 | } |
1468 | return -1; /* should never happen */ |
1469 | } |
1470 | |
79072805 |
1471 | I32 |
8ac85365 |
1472 | do_ipcctl(I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1473 | { |
11343788 |
1474 | dTHR; |
79072805 |
1475 | SV *astr; |
c2ab57d4 |
1476 | char *a; |
a0d0e21e |
1477 | I32 id, n, cmd, infosize, getinfo; |
1478 | I32 ret = -1; |
c2ab57d4 |
1479 | |
463ee0b2 |
1480 | id = SvIVx(*++mark); |
1481 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
1482 | cmd = SvIVx(*++mark); |
79072805 |
1483 | astr = *++mark; |
c2ab57d4 |
1484 | infosize = 0; |
1485 | getinfo = (cmd == IPC_STAT); |
1486 | |
1487 | switch (optype) |
1488 | { |
fe14fcc3 |
1489 | #ifdef HAS_MSG |
79072805 |
1490 | case OP_MSGCTL: |
c2ab57d4 |
1491 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1492 | infosize = sizeof(struct msqid_ds); |
1493 | break; |
e5d73d77 |
1494 | #endif |
fe14fcc3 |
1495 | #ifdef HAS_SHM |
79072805 |
1496 | case OP_SHMCTL: |
c2ab57d4 |
1497 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1498 | infosize = sizeof(struct shmid_ds); |
1499 | break; |
e5d73d77 |
1500 | #endif |
fe14fcc3 |
1501 | #ifdef HAS_SEM |
79072805 |
1502 | case OP_SEMCTL: |
c2ab57d4 |
1503 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1504 | infosize = sizeof(struct semid_ds); |
1505 | else if (cmd == GETALL || cmd == SETALL) |
1506 | { |
8e591e46 |
1507 | struct semid_ds semds; |
bd89102f |
1508 | union semun semun; |
1509 | |
84902520 |
1510 | semun.buf = &semds; |
c2ab57d4 |
1511 | getinfo = (cmd == GETALL); |
9b89d93d |
1512 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1513 | return -1; |
6e21c824 |
1514 | infosize = semds.sem_nsems * sizeof(short); |
1515 | /* "short" is technically wrong but much more portable |
1516 | than guessing about u_?short(_t)? */ |
c2ab57d4 |
1517 | } |
1518 | break; |
e5d73d77 |
1519 | #endif |
fe14fcc3 |
1520 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1521 | default: |
4369b173 |
1522 | croak("%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1523 | #endif |
c2ab57d4 |
1524 | } |
1525 | |
1526 | if (infosize) |
1527 | { |
a0d0e21e |
1528 | STRLEN len; |
c2ab57d4 |
1529 | if (getinfo) |
1530 | { |
a0d0e21e |
1531 | SvPV_force(astr, len); |
1532 | a = SvGROW(astr, infosize+1); |
c2ab57d4 |
1533 | } |
1534 | else |
1535 | { |
463ee0b2 |
1536 | a = SvPV(astr, len); |
1537 | if (len != infosize) |
9607fc9c |
1538 | croak("Bad arg length for %s, is %lu, should be %ld", |
4ec43091 |
1539 | PL_op_desc[optype], |
1540 | (unsigned long)len, |
1541 | (long)infosize); |
c2ab57d4 |
1542 | } |
1543 | } |
1544 | else |
1545 | { |
c030ccd9 |
1546 | IV i = SvIV(astr); |
c2ab57d4 |
1547 | a = (char *)i; /* ouch */ |
1548 | } |
748a9306 |
1549 | SETERRNO(0,0); |
c2ab57d4 |
1550 | switch (optype) |
1551 | { |
fe14fcc3 |
1552 | #ifdef HAS_MSG |
79072805 |
1553 | case OP_MSGCTL: |
bee1dbe2 |
1554 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 |
1555 | break; |
e5d73d77 |
1556 | #endif |
fe14fcc3 |
1557 | #ifdef HAS_SEM |
bd89102f |
1558 | case OP_SEMCTL: { |
1559 | union semun unsemds; |
1560 | |
1561 | unsemds.buf = (struct semid_ds *)a; |
1562 | ret = Semctl(id, n, cmd, unsemds); |
1563 | } |
c2ab57d4 |
1564 | break; |
e5d73d77 |
1565 | #endif |
fe14fcc3 |
1566 | #ifdef HAS_SHM |
79072805 |
1567 | case OP_SHMCTL: |
bee1dbe2 |
1568 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 |
1569 | break; |
e5d73d77 |
1570 | #endif |
c2ab57d4 |
1571 | } |
1572 | if (getinfo && ret >= 0) { |
79072805 |
1573 | SvCUR_set(astr, infosize); |
1574 | *SvEND(astr) = '\0'; |
a0d0e21e |
1575 | SvSETMAGIC(astr); |
c2ab57d4 |
1576 | } |
1577 | return ret; |
1578 | } |
1579 | |
79072805 |
1580 | I32 |
8ac85365 |
1581 | do_msgsnd(SV **mark, SV **sp) |
c2ab57d4 |
1582 | { |
fe14fcc3 |
1583 | #ifdef HAS_MSG |
11343788 |
1584 | dTHR; |
79072805 |
1585 | SV *mstr; |
c2ab57d4 |
1586 | char *mbuf; |
79072805 |
1587 | I32 id, msize, flags; |
463ee0b2 |
1588 | STRLEN len; |
c2ab57d4 |
1589 | |
463ee0b2 |
1590 | id = SvIVx(*++mark); |
79072805 |
1591 | mstr = *++mark; |
463ee0b2 |
1592 | flags = SvIVx(*++mark); |
1593 | mbuf = SvPV(mstr, len); |
1594 | if ((msize = len - sizeof(long)) < 0) |
1595 | croak("Arg too short for msgsnd"); |
748a9306 |
1596 | SETERRNO(0,0); |
bee1dbe2 |
1597 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 |
1598 | #else |
463ee0b2 |
1599 | croak("msgsnd not implemented"); |
e5d73d77 |
1600 | #endif |
c2ab57d4 |
1601 | } |
1602 | |
79072805 |
1603 | I32 |
8ac85365 |
1604 | do_msgrcv(SV **mark, SV **sp) |
c2ab57d4 |
1605 | { |
fe14fcc3 |
1606 | #ifdef HAS_MSG |
11343788 |
1607 | dTHR; |
79072805 |
1608 | SV *mstr; |
c2ab57d4 |
1609 | char *mbuf; |
1610 | long mtype; |
79072805 |
1611 | I32 id, msize, flags, ret; |
463ee0b2 |
1612 | STRLEN len; |
79072805 |
1613 | |
463ee0b2 |
1614 | id = SvIVx(*++mark); |
79072805 |
1615 | mstr = *++mark; |
463ee0b2 |
1616 | msize = SvIVx(*++mark); |
1617 | mtype = (long)SvIVx(*++mark); |
1618 | flags = SvIVx(*++mark); |
ed6116ce |
1619 | if (SvTHINKFIRST(mstr)) { |
1620 | if (SvREADONLY(mstr)) |
1621 | croak("Can't msgrcv to readonly var"); |
1622 | if (SvROK(mstr)) |
1623 | sv_unref(mstr); |
1624 | } |
a0d0e21e |
1625 | SvPV_force(mstr, len); |
1626 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
1627 | |
748a9306 |
1628 | SETERRNO(0,0); |
bee1dbe2 |
1629 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 |
1630 | if (ret >= 0) { |
79072805 |
1631 | SvCUR_set(mstr, sizeof(long)+ret); |
1632 | *SvEND(mstr) = '\0'; |
c2ab57d4 |
1633 | } |
1634 | return ret; |
e5d73d77 |
1635 | #else |
463ee0b2 |
1636 | croak("msgrcv not implemented"); |
e5d73d77 |
1637 | #endif |
c2ab57d4 |
1638 | } |
1639 | |
79072805 |
1640 | I32 |
8ac85365 |
1641 | do_semop(SV **mark, SV **sp) |
c2ab57d4 |
1642 | { |
fe14fcc3 |
1643 | #ifdef HAS_SEM |
11343788 |
1644 | dTHR; |
79072805 |
1645 | SV *opstr; |
c2ab57d4 |
1646 | char *opbuf; |
463ee0b2 |
1647 | I32 id; |
1648 | STRLEN opsize; |
c2ab57d4 |
1649 | |
463ee0b2 |
1650 | id = SvIVx(*++mark); |
79072805 |
1651 | opstr = *++mark; |
463ee0b2 |
1652 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 |
1653 | if (opsize < sizeof(struct sembuf) |
1654 | || (opsize % sizeof(struct sembuf)) != 0) { |
748a9306 |
1655 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 |
1656 | return -1; |
1657 | } |
748a9306 |
1658 | SETERRNO(0,0); |
6e21c824 |
1659 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 |
1660 | #else |
463ee0b2 |
1661 | croak("semop not implemented"); |
e5d73d77 |
1662 | #endif |
c2ab57d4 |
1663 | } |
1664 | |
79072805 |
1665 | I32 |
8ac85365 |
1666 | do_shmio(I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1667 | { |
fe14fcc3 |
1668 | #ifdef HAS_SHM |
11343788 |
1669 | dTHR; |
79072805 |
1670 | SV *mstr; |
c2ab57d4 |
1671 | char *mbuf, *shm; |
79072805 |
1672 | I32 id, mpos, msize; |
463ee0b2 |
1673 | STRLEN len; |
c2ab57d4 |
1674 | struct shmid_ds shmds; |
c2ab57d4 |
1675 | |
463ee0b2 |
1676 | id = SvIVx(*++mark); |
79072805 |
1677 | mstr = *++mark; |
463ee0b2 |
1678 | mpos = SvIVx(*++mark); |
1679 | msize = SvIVx(*++mark); |
748a9306 |
1680 | SETERRNO(0,0); |
c2ab57d4 |
1681 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1682 | return -1; |
1683 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { |
748a9306 |
1684 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 |
1685 | return -1; |
1686 | } |
8ac85365 |
1687 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 |
1688 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1689 | return -1; |
79072805 |
1690 | if (optype == OP_SHMREAD) { |
a0d0e21e |
1691 | SvPV_force(mstr, len); |
1692 | mbuf = SvGROW(mstr, msize+1); |
1693 | |
bee1dbe2 |
1694 | Copy(shm + mpos, mbuf, msize, char); |
79072805 |
1695 | SvCUR_set(mstr, msize); |
1696 | *SvEND(mstr) = '\0'; |
a0d0e21e |
1697 | SvSETMAGIC(mstr); |
c2ab57d4 |
1698 | } |
1699 | else { |
79072805 |
1700 | I32 n; |
c2ab57d4 |
1701 | |
a0d0e21e |
1702 | mbuf = SvPV(mstr, len); |
463ee0b2 |
1703 | if ((n = len) > msize) |
c2ab57d4 |
1704 | n = msize; |
bee1dbe2 |
1705 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 |
1706 | if (n < msize) |
bee1dbe2 |
1707 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 |
1708 | } |
1709 | return shmdt(shm); |
e5d73d77 |
1710 | #else |
463ee0b2 |
1711 | croak("shm I/O not implemented"); |
e5d73d77 |
1712 | #endif |
c2ab57d4 |
1713 | } |
1714 | |
fe14fcc3 |
1715 | #endif /* SYSV IPC */ |
4e35701f |
1716 | |