Commit | Line | Data |
a0d0e21e |
1 | /* doio.c |
a687059c |
2 | * |
3818b22b |
3 | * Copyright (c) 1991-2000, 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" |
864dbfa3 |
18 | #define PERL_IN_DOIO_C |
a687059c |
19 | #include "perl.h" |
20 | |
fe14fcc3 |
21 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
aec308ec |
22 | #ifndef HAS_SEM |
c2ab57d4 |
23 | #include <sys/ipc.h> |
aec308ec |
24 | #endif |
fe14fcc3 |
25 | #ifdef HAS_MSG |
c2ab57d4 |
26 | #include <sys/msg.h> |
e5d73d77 |
27 | #endif |
fe14fcc3 |
28 | #ifdef HAS_SHM |
c2ab57d4 |
29 | #include <sys/shm.h> |
a0d0e21e |
30 | # ifndef HAS_SHMAT_PROTOTYPE |
20ce7b12 |
31 | extern Shmat_t shmat (int, char *, int); |
a0d0e21e |
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 | |
85aff577 |
44 | #ifdef O_EXCL |
45 | # define OPEN_EXCL O_EXCL |
46 | #else |
47 | # define OPEN_EXCL 0 |
48 | #endif |
a687059c |
49 | |
76121258 |
50 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
51 | #include <signal.h> |
52 | #endif |
53 | |
54 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
55 | #ifdef I_UNISTD |
56 | # include <unistd.h> |
57 | #endif |
58 | |
232e078e |
59 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
60 | # include <sys/socket.h> |
29209bc5 |
61 | # if defined(USE_SOCKS) && defined(I_SOCKS) |
86959918 |
62 | # include <socks.h> |
63 | # endif |
64 | # ifdef I_NETBSD |
65 | # include <netdb.h> |
66 | # endif |
232e078e |
67 | # ifndef ENOTSOCK |
68 | # ifdef I_NET_ERRNO |
69 | # include <net/errno.h> |
70 | # endif |
71 | # endif |
72 | #endif |
73 | |
a687059c |
74 | bool |
6170680b |
75 | Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw, |
76 | int rawmode, int rawperm, PerlIO *supplied_fp) |
77 | { |
78 | return do_open9(gv, name, len, as_raw, rawmode, rawperm, |
79 | supplied_fp, Nullsv, 0); |
80 | } |
81 | |
82 | bool |
83 | Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw, |
84 | int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, |
85 | I32 num_svs) |
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; |
16fe6d59 |
96 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
a687059c |
97 | |
3280af22 |
98 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd |
99 | |
16fe6d59 |
100 | if (PL_op && PL_op->op_type == OP_OPEN) { |
101 | /* set up disciplines */ |
102 | U8 flags = PL_op->op_private; |
103 | in_raw = (flags & OPpOPEN_IN_RAW); |
104 | in_crlf = (flags & OPpOPEN_IN_CRLF); |
105 | out_raw = (flags & OPpOPEN_OUT_RAW); |
106 | out_crlf = (flags & OPpOPEN_OUT_CRLF); |
107 | } |
108 | |
a0d0e21e |
109 | if (IoIFP(io)) { |
760ac839 |
110 | fd = PerlIO_fileno(IoIFP(io)); |
50952442 |
111 | if (IoTYPE(io) == IoTYPE_STD) |
c2ab57d4 |
112 | result = 0; |
3280af22 |
113 | else if (fd <= PL_maxsysfd) { |
8990e307 |
114 | saveifp = IoIFP(io); |
115 | saveofp = IoOFP(io); |
116 | savetype = IoTYPE(io); |
6e21c824 |
117 | result = 0; |
118 | } |
50952442 |
119 | else if (IoTYPE(io) == IoTYPE_PIPE) |
3028581b |
120 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 |
121 | else if (IoIFP(io) != IoOFP(io)) { |
122 | if (IoOFP(io)) { |
760ac839 |
123 | result = PerlIO_close(IoOFP(io)); |
6170680b |
124 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
125 | } |
126 | else |
760ac839 |
127 | result = PerlIO_close(IoIFP(io)); |
a687059c |
128 | } |
a687059c |
129 | else |
760ac839 |
130 | result = PerlIO_close(IoIFP(io)); |
3280af22 |
131 | if (result == EOF && fd > PL_maxsysfd) |
bf49b057 |
132 | PerlIO_printf(Perl_error_log, |
6170680b |
133 | "Warning: unable to close filehandle %s properly.\n", |
134 | GvENAME(gv)); |
8990e307 |
135 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c |
136 | } |
c07a80fd |
137 | |
138 | if (as_raw) { |
09458382 |
139 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
5ff3f7a4 |
140 | rawmode |= O_LARGEFILE; |
141 | #endif |
142 | |
9d116dd7 |
143 | #ifndef O_ACCMODE |
144 | #define O_ACCMODE 3 /* Assume traditional implementation */ |
145 | #endif |
5ff3f7a4 |
146 | |
9d116dd7 |
147 | switch (result = rawmode & O_ACCMODE) { |
148 | case O_RDONLY: |
50952442 |
149 | IoTYPE(io) = IoTYPE_RDONLY; |
9d116dd7 |
150 | break; |
151 | case O_WRONLY: |
50952442 |
152 | IoTYPE(io) = IoTYPE_WRONLY; |
9d116dd7 |
153 | break; |
154 | case O_RDWR: |
155 | default: |
50952442 |
156 | IoTYPE(io) = IoTYPE_RDWR; |
9d116dd7 |
157 | break; |
158 | } |
159 | |
c07a80fd |
160 | writing = (result > 0); |
3028581b |
161 | fd = PerlLIO_open3(name, rawmode, rawperm); |
9d116dd7 |
162 | |
c07a80fd |
163 | if (fd == -1) |
164 | fp = NULL; |
165 | else { |
16fe6d59 |
166 | char fpmode[4]; |
167 | STRLEN ix = 0; |
9d116dd7 |
168 | if (result == O_RDONLY) |
16fe6d59 |
169 | fpmode[ix++] = 'r'; |
360e5741 |
170 | #ifdef O_APPEND |
16fe6d59 |
171 | else if (rawmode & O_APPEND) { |
172 | fpmode[ix++] = 'a'; |
173 | if (result != O_WRONLY) |
174 | fpmode[ix++] = '+'; |
175 | } |
360e5741 |
176 | #endif |
16fe6d59 |
177 | else { |
178 | if (result == O_WRONLY) |
179 | fpmode[ix++] = 'w'; |
180 | else { |
181 | fpmode[ix++] = 'r'; |
182 | fpmode[ix++] = '+'; |
183 | } |
184 | } |
185 | if (rawmode & O_BINARY) |
186 | fpmode[ix++] = 'b'; |
187 | fpmode[ix] = '\0'; |
360e5741 |
188 | fp = PerlIO_fdopen(fd, fpmode); |
c07a80fd |
189 | if (!fp) |
3028581b |
190 | PerlLIO_close(fd); |
c07a80fd |
191 | } |
a687059c |
192 | } |
c07a80fd |
193 | else { |
faecd977 |
194 | char *type; |
195 | char *oname = name; |
6170680b |
196 | STRLEN tlen; |
faecd977 |
197 | STRLEN olen = len; |
16fe6d59 |
198 | char mode[4]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */ |
c07a80fd |
199 | int dodup; |
200 | |
faecd977 |
201 | type = savepvn(name, len); |
202 | tlen = len; |
203 | SAVEFREEPV(type); |
6170680b |
204 | if (num_svs) { |
faecd977 |
205 | STRLEN l; |
206 | name = SvPV(svs, l) ; |
207 | len = (I32)l; |
208 | name = savepvn(name, len); |
209 | SAVEFREEPV(name); |
6170680b |
210 | } |
faecd977 |
211 | else { |
6170680b |
212 | while (tlen && isSPACE(type[tlen-1])) |
213 | type[--tlen] = '\0'; |
faecd977 |
214 | name = type; |
215 | len = tlen; |
216 | } |
16fe6d59 |
217 | mode[0] = mode[1] = mode[2] = mode[3] = '\0'; |
6170680b |
218 | IoTYPE(io) = *type; |
219 | if (*type == '+' && tlen > 1 && type[tlen-1] != '|') { /* scary */ |
220 | mode[1] = *type++; |
221 | --tlen; |
c07a80fd |
222 | writing = 1; |
a687059c |
223 | } |
c07a80fd |
224 | |
6170680b |
225 | if (*type == '|') { |
226 | if (num_svs && (tlen != 2 || type[1] != '-')) { |
227 | unknown_desr: |
894356b3 |
228 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); |
6170680b |
229 | } |
c07a80fd |
230 | /*SUPPRESS 530*/ |
faecd977 |
231 | for (type++, tlen--; isSPACE(*type); type++, tlen--) ; |
232 | if (!num_svs) { |
6170680b |
233 | name = type; |
faecd977 |
234 | len = tlen; |
235 | } |
06eaf0bc |
236 | if (*name == '\0') { /* command is missing 19990114 */ |
237 | dTHR; |
238 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
239 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc |
240 | errno = EPIPE; |
241 | goto say_false; |
242 | } |
6170680b |
243 | if (strNE(name,"-") || num_svs) |
c07a80fd |
244 | TAINT_ENV(); |
245 | TAINT_PROPER("piped open"); |
faecd977 |
246 | if (name[len-1] == '|') { |
d008e5eb |
247 | dTHR; |
faecd977 |
248 | name[--len] = '\0' ; |
599cee73 |
249 | if (ckWARN(WARN_PIPE)) |
9a7dcd9c |
250 | Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe"); |
7b8d334a |
251 | } |
16fe6d59 |
252 | { |
253 | char *mode; |
254 | if (out_raw) |
255 | mode = "wb"; |
256 | else if (out_crlf) |
257 | mode = "wt"; |
258 | else |
259 | mode = "w"; |
260 | fp = PerlProc_popen(name,mode); |
261 | } |
c07a80fd |
262 | writing = 1; |
263 | } |
6170680b |
264 | else if (*type == '>') { |
c07a80fd |
265 | TAINT_PROPER("open"); |
6170680b |
266 | type++; |
267 | if (*type == '>') { |
50952442 |
268 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b |
269 | type++; |
270 | tlen--; |
a0d0e21e |
271 | } |
c07a80fd |
272 | else |
273 | mode[0] = 'w'; |
274 | writing = 1; |
275 | |
16fe6d59 |
276 | if (out_raw) |
277 | strcat(mode, "b"); |
278 | else if (out_crlf) |
279 | strcat(mode, "t"); |
280 | |
6170680b |
281 | if (num_svs && tlen != 1) |
282 | goto unknown_desr; |
283 | if (*type == '&') { |
284 | name = type; |
c07a80fd |
285 | duplicity: |
286 | dodup = 1; |
287 | name++; |
288 | if (*name == '=') { |
289 | dodup = 0; |
a0d0e21e |
290 | name++; |
c07a80fd |
291 | } |
292 | if (!*name && supplied_fp) |
293 | fp = supplied_fp; |
a0d0e21e |
294 | else { |
c07a80fd |
295 | /*SUPPRESS 530*/ |
296 | for (; isSPACE(*name); name++) ; |
297 | if (isDIGIT(*name)) |
298 | fd = atoi(name); |
299 | else { |
300 | IO* thatio; |
301 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); |
302 | thatio = GvIO(gv); |
303 | if (!thatio) { |
6e21c824 |
304 | #ifdef EINVAL |
c07a80fd |
305 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 |
306 | #endif |
c07a80fd |
307 | goto say_false; |
308 | } |
309 | if (IoIFP(thatio)) { |
54195c32 |
310 | PerlIO *fp = IoIFP(thatio); |
7211d486 |
311 | /* Flush stdio buffer before dup. --mjd |
312 | * Unfortunately SEEK_CURing 0 seems to |
313 | * be optimized away on most platforms; |
314 | * only Solaris and Linux seem to flush |
315 | * on that. --jhi */ |
54195c32 |
316 | PerlIO_seek(fp, 0, SEEK_CUR); |
7211d486 |
317 | /* On the other hand, do all platforms |
318 | * take gracefully to flushing a read-only |
319 | * filehandle? Perhaps we should do |
320 | * fsetpos(src)+fgetpos(dst)? --nik */ |
321 | PerlIO_flush(fp); |
54195c32 |
322 | fd = PerlIO_fileno(fp); |
0759c907 |
323 | /* When dup()ing STDIN, STDOUT or STDERR |
324 | * explicitly set appropriate access mode */ |
325 | if (IoIFP(thatio) == PerlIO_stdout() |
326 | || IoIFP(thatio) == PerlIO_stderr()) |
327 | IoTYPE(io) = IoTYPE_WRONLY; |
328 | else if (IoIFP(thatio) == PerlIO_stdin()) |
329 | IoTYPE(io) = IoTYPE_RDONLY; |
330 | /* When dup()ing a socket, say result is |
331 | * one as well */ |
332 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) |
50952442 |
333 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd |
334 | } |
335 | else |
336 | fd = -1; |
a0d0e21e |
337 | } |
fec02dd3 |
338 | if (dodup) |
3028581b |
339 | fd = PerlLIO_dup(fd); |
3500f679 |
340 | else |
341 | was_fdopen = TRUE; |
760ac839 |
342 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd |
343 | if (dodup) |
3028581b |
344 | PerlLIO_close(fd); |
faecd977 |
345 | } |
c07a80fd |
346 | } |
bf38876a |
347 | } |
c07a80fd |
348 | else { |
349 | /*SUPPRESS 530*/ |
6170680b |
350 | for (; isSPACE(*type); type++) ; |
351 | if (strEQ(type,"-")) { |
760ac839 |
352 | fp = PerlIO_stdout(); |
50952442 |
353 | IoTYPE(io) = IoTYPE_STD; |
c07a80fd |
354 | } |
355 | else { |
6170680b |
356 | fp = PerlIO_open((num_svs ? name : type), mode); |
c07a80fd |
357 | } |
bf38876a |
358 | } |
359 | } |
6170680b |
360 | else if (*type == '<') { |
361 | if (num_svs && tlen != 1) |
362 | goto unknown_desr; |
c07a80fd |
363 | /*SUPPRESS 530*/ |
6170680b |
364 | for (type++; isSPACE(*type); type++) ; |
bf38876a |
365 | mode[0] = 'r'; |
16fe6d59 |
366 | if (in_raw) |
367 | strcat(mode, "b"); |
368 | else if (in_crlf) |
369 | strcat(mode, "t"); |
370 | |
6170680b |
371 | if (*type == '&') { |
372 | name = type; |
bf38876a |
373 | goto duplicity; |
6170680b |
374 | } |
375 | if (strEQ(type,"-")) { |
760ac839 |
376 | fp = PerlIO_stdin(); |
50952442 |
377 | IoTYPE(io) = IoTYPE_STD; |
a687059c |
378 | } |
bf38876a |
379 | else |
6170680b |
380 | fp = PerlIO_open((num_svs ? name : type), mode); |
a687059c |
381 | } |
6170680b |
382 | else if (tlen > 1 && type[tlen-1] == '|') { |
383 | if (num_svs) { |
384 | if (tlen != 2 || type[0] != '-') |
385 | goto unknown_desr; |
386 | } |
387 | else { |
388 | type[--tlen] = '\0'; |
389 | while (tlen && isSPACE(type[tlen-1])) |
390 | type[--tlen] = '\0'; |
391 | /*SUPPRESS 530*/ |
392 | for (; isSPACE(*type); type++) ; |
393 | name = type; |
394 | } |
06eaf0bc |
395 | if (*name == '\0') { /* command is missing 19990114 */ |
396 | dTHR; |
397 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
398 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc |
399 | errno = EPIPE; |
400 | goto say_false; |
401 | } |
6170680b |
402 | if (strNE(name,"-") || num_svs) |
79072805 |
403 | TAINT_ENV(); |
404 | TAINT_PROPER("piped open"); |
16fe6d59 |
405 | { |
406 | char *mode; |
407 | if (in_raw) |
408 | mode = "rb"; |
409 | else if (in_crlf) |
410 | mode = "rt"; |
411 | else |
412 | mode = "r"; |
413 | fp = PerlProc_popen(name,mode); |
414 | } |
50952442 |
415 | IoTYPE(io) = IoTYPE_PIPE; |
a687059c |
416 | } |
417 | else { |
6170680b |
418 | if (num_svs) |
419 | goto unknown_desr; |
420 | name = type; |
50952442 |
421 | IoTYPE(io) = IoTYPE_RDONLY; |
99b89507 |
422 | /*SUPPRESS 530*/ |
423 | for (; isSPACE(*name); name++) ; |
a687059c |
424 | if (strEQ(name,"-")) { |
760ac839 |
425 | fp = PerlIO_stdin(); |
50952442 |
426 | IoTYPE(io) = IoTYPE_STD; |
a687059c |
427 | } |
16fe6d59 |
428 | else { |
429 | char *mode; |
430 | if (in_raw) |
431 | mode = "rb"; |
432 | else if (in_crlf) |
433 | mode = "rt"; |
434 | else |
435 | mode = "r"; |
436 | fp = PerlIO_open(name,mode); |
437 | } |
a687059c |
438 | } |
439 | } |
bee1dbe2 |
440 | if (!fp) { |
d008e5eb |
441 | dTHR; |
50952442 |
442 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) |
cea2e8a9 |
443 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); |
6e21c824 |
444 | goto say_false; |
bee1dbe2 |
445 | } |
8990e307 |
446 | if (IoTYPE(io) && |
50952442 |
447 | IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD) { |
96827780 |
448 | dTHR; |
3280af22 |
449 | if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { |
760ac839 |
450 | (void)PerlIO_close(fp); |
6e21c824 |
451 | goto say_false; |
a687059c |
452 | } |
3280af22 |
453 | if (S_ISSOCK(PL_statbuf.st_mode)) |
50952442 |
454 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 |
455 | #ifdef HAS_SOCKET |
456 | else if ( |
c623bd54 |
457 | #ifdef S_IFMT |
3280af22 |
458 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 |
459 | #else |
b28d0864 |
460 | !PL_statbuf.st_mode |
99b89507 |
461 | #endif |
0759c907 |
462 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
463 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ |
464 | ) { /* on OS's that return 0 on fstat()ed pipe */ |
96827780 |
465 | char tmpbuf[256]; |
466 | Sock_size_t buflen = sizeof tmpbuf; |
3028581b |
467 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e |
468 | &buflen) >= 0 |
469 | || errno != ENOTSOCK) |
50952442 |
470 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ |
99b89507 |
471 | /* but some return 0 for streams too, sigh */ |
472 | } |
bf38876a |
473 | #endif |
a687059c |
474 | } |
6e21c824 |
475 | if (saveifp) { /* must use old fp? */ |
760ac839 |
476 | fd = PerlIO_fileno(saveifp); |
6e21c824 |
477 | if (saveofp) { |
760ac839 |
478 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 |
479 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 |
480 | PerlIO_close(saveofp); |
99b89507 |
481 | if (fd > 2) |
482 | Safefree(saveofp); |
6e21c824 |
483 | } |
484 | } |
760ac839 |
485 | if (fd != PerlIO_fileno(fp)) { |
d8a83dd3 |
486 | Pid_t pid; |
79072805 |
487 | SV *sv; |
bee1dbe2 |
488 | |
3028581b |
489 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
4755096e |
490 | LOCK_FDPID_MUTEX; |
3280af22 |
491 | sv = *av_fetch(PL_fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e |
492 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
493 | pid = SvIVX(sv); |
494 | SvIVX(sv) = 0; |
3280af22 |
495 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
4755096e |
496 | UNLOCK_FDPID_MUTEX; |
a0d0e21e |
497 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
498 | SvIVX(sv) = pid; |
3500f679 |
499 | if (!was_fdopen) |
500 | PerlIO_close(fp); |
bee1dbe2 |
501 | |
6e21c824 |
502 | } |
503 | fp = saveifp; |
760ac839 |
504 | PerlIO_clearerr(fp); |
6e21c824 |
505 | } |
a0d0e21e |
506 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
a8710ca1 |
507 | { |
508 | int save_errno = errno; |
509 | fd = PerlIO_fileno(fp); |
510 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ |
511 | errno = save_errno; |
512 | } |
1462b684 |
513 | #endif |
8990e307 |
514 | IoIFP(io) = fp; |
684bef36 |
515 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a |
516 | if (writing) { |
96827780 |
517 | dTHR; |
50952442 |
518 | if (IoTYPE(io) == IoTYPE_SOCKET |
519 | || (IoTYPE(io) == IoTYPE_WRONLY && S_ISCHR(PL_statbuf.st_mode)) ) |
16fe6d59 |
520 | { |
521 | char *mode; |
522 | if (out_raw) |
523 | mode = "wb"; |
524 | else if (out_crlf) |
525 | mode = "wt"; |
526 | else |
527 | mode = "w"; |
528 | |
529 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),mode))) { |
760ac839 |
530 | PerlIO_close(fp); |
8990e307 |
531 | IoIFP(io) = Nullfp; |
6e21c824 |
532 | goto say_false; |
fe14fcc3 |
533 | } |
1462b684 |
534 | } |
535 | else |
8990e307 |
536 | IoOFP(io) = fp; |
bf38876a |
537 | } |
a687059c |
538 | return TRUE; |
6e21c824 |
539 | |
540 | say_false: |
8990e307 |
541 | IoIFP(io) = saveifp; |
542 | IoOFP(io) = saveofp; |
543 | IoTYPE(io) = savetype; |
6e21c824 |
544 | return FALSE; |
a687059c |
545 | } |
546 | |
760ac839 |
547 | PerlIO * |
864dbfa3 |
548 | Perl_nextargv(pTHX_ register GV *gv) |
a687059c |
549 | { |
79072805 |
550 | register SV *sv; |
99b89507 |
551 | #ifndef FLEXFILENAMES |
c623bd54 |
552 | int filedev; |
553 | int fileino; |
99b89507 |
554 | #endif |
761237fe |
555 | Uid_t fileuid; |
556 | Gid_t filegid; |
18708f5a |
557 | IO *io = GvIOp(gv); |
fe14fcc3 |
558 | |
3280af22 |
559 | if (!PL_argvoutgv) |
560 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
18708f5a |
561 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
562 | IoFLAGS(io) &= ~IOf_START; |
7a1c5554 |
563 | if (PL_inplace) { |
564 | if (!PL_argvout_stack) |
565 | PL_argvout_stack = newAV(); |
18708f5a |
566 | av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); |
7a1c5554 |
567 | } |
18708f5a |
568 | } |
3280af22 |
569 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
570 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 |
571 | #ifdef HAS_FCHMOD |
3280af22 |
572 | (void)fchmod(PL_lastfd,PL_filemode); |
fe14fcc3 |
573 | #else |
b28d0864 |
574 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 |
575 | #endif |
576 | } |
3280af22 |
577 | PL_filemode = 0; |
79072805 |
578 | while (av_len(GvAV(gv)) >= 0) { |
11343788 |
579 | dTHR; |
85aff577 |
580 | STRLEN oldlen; |
79072805 |
581 | sv = av_shift(GvAV(gv)); |
8990e307 |
582 | SAVEFREESV(sv); |
79072805 |
583 | sv_setsv(GvSV(gv),sv); |
584 | SvSETMAGIC(GvSV(gv)); |
3280af22 |
585 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 |
586 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 |
587 | if (PL_inplace) { |
79072805 |
588 | TAINT_PROPER("inplace open"); |
3280af22 |
589 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 |
590 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e |
591 | return IoIFP(GvIOp(gv)); |
c623bd54 |
592 | } |
99b89507 |
593 | #ifndef FLEXFILENAMES |
b28d0864 |
594 | filedev = PL_statbuf.st_dev; |
595 | fileino = PL_statbuf.st_ino; |
99b89507 |
596 | #endif |
3280af22 |
597 | PL_filemode = PL_statbuf.st_mode; |
598 | fileuid = PL_statbuf.st_uid; |
599 | filegid = PL_statbuf.st_gid; |
600 | if (!S_ISREG(PL_filemode)) { |
0453d815 |
601 | if (ckWARN_d(WARN_INPLACE)) |
602 | Perl_warner(aTHX_ WARN_INPLACE, |
603 | "Can't do inplace edit: %s is not a regular file", |
604 | PL_oldname ); |
79072805 |
605 | do_close(gv,FALSE); |
c623bd54 |
606 | continue; |
607 | } |
3280af22 |
608 | if (*PL_inplace) { |
609 | char *star = strchr(PL_inplace, '*'); |
2d259d92 |
610 | if (star) { |
3280af22 |
611 | char *begin = PL_inplace; |
2d259d92 |
612 | sv_setpvn(sv, "", 0); |
613 | do { |
614 | sv_catpvn(sv, begin, star - begin); |
3280af22 |
615 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 |
616 | begin = ++star; |
617 | } while ((star = strchr(begin, '*'))); |
3d66d7bb |
618 | if (*begin) |
619 | sv_catpv(sv,begin); |
2d259d92 |
620 | } |
621 | else { |
3280af22 |
622 | sv_catpv(sv,PL_inplace); |
2d259d92 |
623 | } |
c623bd54 |
624 | #ifndef FLEXFILENAMES |
b28d0864 |
625 | if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
626 | && PL_statbuf.st_dev == filedev |
627 | && PL_statbuf.st_ino == fileino |
39e571d4 |
628 | #ifdef DJGPP |
629 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 |
630 | #endif |
f248d071 |
631 | ) |
632 | { |
633 | if (ckWARN_d(WARN_INPLACE)) |
634 | Perl_warner(aTHX_ WARN_INPLACE, |
635 | "Can't do inplace edit: %s would not be unique", |
636 | SvPVX(sv)); |
79072805 |
637 | do_close(gv,FALSE); |
c623bd54 |
638 | continue; |
639 | } |
640 | #endif |
fe14fcc3 |
641 | #ifdef HAS_RENAME |
d308986b |
642 | #if !defined(DOSISH) && !defined(__CYGWIN__) |
3280af22 |
643 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 |
644 | if (ckWARN_d(WARN_INPLACE)) |
645 | Perl_warner(aTHX_ WARN_INPLACE, |
646 | "Can't rename %s to %s: %s, skipping file", |
647 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
648 | do_close(gv,FALSE); |
c623bd54 |
649 | continue; |
650 | } |
a687059c |
651 | #else |
79072805 |
652 | do_close(gv,FALSE); |
3028581b |
653 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 |
654 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 |
655 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff |
656 | #endif /* DOSISH */ |
ff8e2863 |
657 | #else |
463ee0b2 |
658 | (void)UNLINK(SvPVX(sv)); |
b28d0864 |
659 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 |
660 | if (ckWARN_d(WARN_INPLACE)) |
661 | Perl_warner(aTHX_ WARN_INPLACE, |
662 | "Can't rename %s to %s: %s, skipping file", |
663 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
664 | do_close(gv,FALSE); |
c623bd54 |
665 | continue; |
666 | } |
b28d0864 |
667 | (void)UNLINK(PL_oldname); |
a687059c |
668 | #endif |
669 | } |
670 | else { |
a8c18271 |
671 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 |
672 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 |
673 | if (UNLINK(PL_oldname) < 0) { |
0453d815 |
674 | if (ckWARN_d(WARN_INPLACE)) |
675 | Perl_warner(aTHX_ WARN_INPLACE, |
676 | "Can't remove %s: %s, skipping file", |
677 | PL_oldname, Strerror(errno) ); |
79072805 |
678 | do_close(gv,FALSE); |
fe14fcc3 |
679 | continue; |
680 | } |
edc7bc49 |
681 | # endif |
ff8e2863 |
682 | #else |
cea2e8a9 |
683 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 |
684 | #endif |
a687059c |
685 | } |
686 | |
3280af22 |
687 | sv_setpvn(sv,">",!PL_inplace); |
688 | sv_catpvn(sv,PL_oldname,oldlen); |
748a9306 |
689 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 |
690 | #ifdef VMS |
691 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a |
692 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) |
4119ab01 |
693 | #else |
3280af22 |
694 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a |
695 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) |
4119ab01 |
696 | #endif |
18708f5a |
697 | { |
0453d815 |
698 | if (ckWARN_d(WARN_INPLACE)) |
699 | Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", |
700 | PL_oldname, Strerror(errno) ); |
79072805 |
701 | do_close(gv,FALSE); |
fe14fcc3 |
702 | continue; |
703 | } |
3280af22 |
704 | setdefout(PL_argvoutgv); |
705 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); |
706 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); |
fe14fcc3 |
707 | #ifdef HAS_FCHMOD |
3280af22 |
708 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c |
709 | #else |
3e3baf6d |
710 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
711 | /* Borland runtime creates a readonly file! */ |
b28d0864 |
712 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d |
713 | # endif |
a687059c |
714 | #endif |
3280af22 |
715 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 |
716 | #ifdef HAS_FCHOWN |
3280af22 |
717 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c |
718 | #else |
fe14fcc3 |
719 | #ifdef HAS_CHOWN |
b28d0864 |
720 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c |
721 | #endif |
b1248f16 |
722 | #endif |
fe14fcc3 |
723 | } |
a687059c |
724 | } |
a0d0e21e |
725 | return IoIFP(GvIOp(gv)); |
a687059c |
726 | } |
4d61ec05 |
727 | else { |
728 | dTHR; |
729 | if (ckWARN_d(WARN_INPLACE)) { |
6af84f9f |
730 | int eno = errno; |
731 | if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 |
732 | && !S_ISREG(PL_statbuf.st_mode)) |
733 | { |
4d61ec05 |
734 | Perl_warner(aTHX_ WARN_INPLACE, |
735 | "Can't do inplace edit: %s is not a regular file", |
9a7dcd9c |
736 | PL_oldname); |
6af84f9f |
737 | } |
4d61ec05 |
738 | else |
9a7dcd9c |
739 | Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s", |
6af84f9f |
740 | PL_oldname, Strerror(eno)); |
4d61ec05 |
741 | } |
742 | } |
a687059c |
743 | } |
18708f5a |
744 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
745 | IoFLAGS(io) |= IOf_START; |
3280af22 |
746 | if (PL_inplace) { |
747 | (void)do_close(PL_argvoutgv,FALSE); |
7a1c5554 |
748 | if (io && (IoFLAGS(io) & IOf_ARGV) |
749 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) |
750 | { |
18708f5a |
751 | GV *oldout = (GV*)av_pop(PL_argvout_stack); |
752 | setdefout(oldout); |
753 | SvREFCNT_dec(oldout); |
754 | return Nullfp; |
755 | } |
4633a7c4 |
756 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c |
757 | } |
758 | return Nullfp; |
759 | } |
760 | |
fe14fcc3 |
761 | #ifdef HAS_PIPE |
afd9f252 |
762 | void |
864dbfa3 |
763 | Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) |
afd9f252 |
764 | { |
79072805 |
765 | register IO *rstio; |
766 | register IO *wstio; |
afd9f252 |
767 | int fd[2]; |
768 | |
79072805 |
769 | if (!rgv) |
afd9f252 |
770 | goto badexit; |
79072805 |
771 | if (!wgv) |
afd9f252 |
772 | goto badexit; |
773 | |
a0d0e21e |
774 | rstio = GvIOn(rgv); |
775 | wstio = GvIOn(wgv); |
afd9f252 |
776 | |
a0d0e21e |
777 | if (IoIFP(rstio)) |
79072805 |
778 | do_close(rgv,FALSE); |
a0d0e21e |
779 | if (IoIFP(wstio)) |
79072805 |
780 | do_close(wgv,FALSE); |
afd9f252 |
781 | |
3028581b |
782 | if (PerlProc_pipe(fd) < 0) |
afd9f252 |
783 | goto badexit; |
760ac839 |
784 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
785 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); |
8990e307 |
786 | IoIFP(wstio) = IoOFP(wstio); |
50952442 |
787 | IoTYPE(rstio) = IoTYPE_RDONLY; |
788 | IoTYPE(wstio) = IoTYPE_WRONLY; |
8990e307 |
789 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 |
790 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b |
791 | else PerlLIO_close(fd[0]); |
760ac839 |
792 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b |
793 | else PerlLIO_close(fd[1]); |
fe14fcc3 |
794 | goto badexit; |
795 | } |
afd9f252 |
796 | |
3280af22 |
797 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 |
798 | return; |
799 | |
800 | badexit: |
3280af22 |
801 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 |
802 | return; |
803 | } |
b1248f16 |
804 | #endif |
afd9f252 |
805 | |
517844ec |
806 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c |
807 | bool |
864dbfa3 |
808 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c |
809 | { |
1193dd27 |
810 | bool retval; |
811 | IO *io; |
a687059c |
812 | |
79072805 |
813 | if (!gv) |
3280af22 |
814 | gv = PL_argvgv; |
a0d0e21e |
815 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 |
816 | if (not_implicit) |
817 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 |
818 | return FALSE; |
99b89507 |
819 | } |
79072805 |
820 | io = GvIO(gv); |
821 | if (!io) { /* never opened */ |
1d2dff63 |
822 | if (not_implicit) { |
d008e5eb |
823 | dTHR; |
2dd78f96 |
824 | if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ |
825 | report_evil_fh(gv, io, PL_op->op_type); |
1d2dff63 |
826 | SETERRNO(EBADF,SS$_IVCHAN); |
827 | } |
a687059c |
828 | return FALSE; |
829 | } |
f2b5be74 |
830 | retval = io_close(io, not_implicit); |
517844ec |
831 | if (not_implicit) { |
1193dd27 |
832 | IoLINES(io) = 0; |
833 | IoPAGE(io) = 0; |
834 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
835 | } |
50952442 |
836 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 |
837 | return retval; |
838 | } |
839 | |
840 | bool |
f2b5be74 |
841 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 |
842 | { |
843 | bool retval = FALSE; |
844 | int status; |
845 | |
8990e307 |
846 | if (IoIFP(io)) { |
50952442 |
847 | if (IoTYPE(io) == IoTYPE_PIPE) { |
3028581b |
848 | status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 |
849 | if (not_implicit) { |
850 | STATUS_NATIVE_SET(status); |
851 | retval = (STATUS_POSIX == 0); |
852 | } |
853 | else { |
854 | retval = (status != -1); |
855 | } |
a687059c |
856 | } |
50952442 |
857 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c |
858 | retval = TRUE; |
859 | else { |
8990e307 |
860 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 |
861 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
862 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
863 | } |
864 | else |
760ac839 |
865 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c |
866 | } |
8990e307 |
867 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 |
868 | } |
f2b5be74 |
869 | else if (not_implicit) { |
20408e3c |
870 | SETERRNO(EBADF,SS$_IVCHAN); |
871 | } |
1193dd27 |
872 | |
a687059c |
873 | return retval; |
874 | } |
875 | |
876 | bool |
864dbfa3 |
877 | Perl_do_eof(pTHX_ GV *gv) |
a687059c |
878 | { |
11343788 |
879 | dTHR; |
79072805 |
880 | register IO *io; |
a687059c |
881 | int ch; |
882 | |
79072805 |
883 | io = GvIO(gv); |
a687059c |
884 | |
79072805 |
885 | if (!io) |
a687059c |
886 | return TRUE; |
af8c498a |
887 | else if (ckWARN(WARN_IO) |
50952442 |
888 | && (IoTYPE(io) == IoTYPE_WRONLY || IoIFP(io) == PerlIO_stdout() |
af8c498a |
889 | || IoIFP(io) == PerlIO_stderr())) |
890 | { |
2dd78f96 |
891 | /* integrate to report_evil_fh()? */ |
892 | char *name = NULL; |
893 | if (isGV(gv)) { |
894 | SV* sv = sv_newmortal(); |
895 | gv_efullname4(sv, gv, Nullch, FALSE); |
896 | name = SvPV_nolen(sv); |
897 | } |
898 | if (name && *name) |
899 | Perl_warner(aTHX_ WARN_IO, |
900 | "Filehandle %s opened only for output", name); |
901 | else |
902 | Perl_warner(aTHX_ WARN_IO, |
903 | "Filehandle opened only for output"); |
af8c498a |
904 | } |
a687059c |
905 | |
8990e307 |
906 | while (IoIFP(io)) { |
a687059c |
907 | |
760ac839 |
908 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 |
909 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 |
910 | return FALSE; /* this is the most usual case */ |
911 | } |
a687059c |
912 | |
760ac839 |
913 | ch = PerlIO_getc(IoIFP(io)); |
a687059c |
914 | if (ch != EOF) { |
760ac839 |
915 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c |
916 | return FALSE; |
917 | } |
760ac839 |
918 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 |
919 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
920 | PerlIO_set_cnt(IoIFP(io),-1); |
760ac839 |
921 | } |
533c011a |
922 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
3280af22 |
923 | if (!nextargv(PL_argvgv)) /* get another fp handy */ |
a687059c |
924 | return TRUE; |
925 | } |
926 | else |
927 | return TRUE; /* normal fp, definitely end of file */ |
928 | } |
929 | return TRUE; |
930 | } |
931 | |
5ff3f7a4 |
932 | Off_t |
864dbfa3 |
933 | Perl_do_tell(pTHX_ GV *gv) |
a687059c |
934 | { |
79072805 |
935 | register IO *io; |
96e4d5b1 |
936 | register PerlIO *fp; |
a687059c |
937 | |
96e4d5b1 |
938 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
939 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 |
940 | if (PerlIO_eof(fp)) |
941 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
942 | #endif |
8903cb82 |
943 | return PerlIO_tell(fp); |
96e4d5b1 |
944 | } |
d008e5eb |
945 | { |
946 | dTHR; |
2dd78f96 |
947 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
948 | report_evil_fh(gv, io, PL_op->op_type); |
d008e5eb |
949 | } |
748a9306 |
950 | SETERRNO(EBADF,RMS$_IFI); |
5ff3f7a4 |
951 | return (Off_t)-1; |
a687059c |
952 | } |
953 | |
954 | bool |
864dbfa3 |
955 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c |
956 | { |
79072805 |
957 | register IO *io; |
137443ea |
958 | register PerlIO *fp; |
a687059c |
959 | |
137443ea |
960 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
961 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea |
962 | if (PerlIO_eof(fp)) |
963 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
964 | #endif |
8903cb82 |
965 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea |
966 | } |
d008e5eb |
967 | { |
968 | dTHR; |
2dd78f96 |
969 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
970 | report_evil_fh(gv, io, PL_op->op_type); |
d008e5eb |
971 | } |
748a9306 |
972 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
973 | return FALSE; |
974 | } |
975 | |
97cc44eb |
976 | Off_t |
864dbfa3 |
977 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 |
978 | { |
979 | register IO *io; |
980 | register PerlIO *fp; |
981 | |
982 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) |
3028581b |
983 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
d008e5eb |
984 | { |
985 | dTHR; |
2dd78f96 |
986 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
987 | report_evil_fh(gv, io, PL_op->op_type); |
d008e5eb |
988 | } |
8903cb82 |
989 | SETERRNO(EBADF,RMS$_IFI); |
d9b3e12d |
990 | return (Off_t)-1; |
8903cb82 |
991 | } |
992 | |
6ff81951 |
993 | int |
16fe6d59 |
994 | Perl_mode_from_discipline(pTHX_ SV *discp) |
995 | { |
996 | int mode = O_BINARY; |
997 | if (discp) { |
998 | STRLEN len; |
999 | char *s = SvPV(discp,len); |
1000 | while (*s) { |
1001 | if (*s == ':') { |
1002 | switch (s[1]) { |
1003 | case 'r': |
1004 | if (len > 3 && strnEQ(s+1, "raw", 3) |
1005 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) |
1006 | { |
1007 | mode = O_BINARY; |
1008 | s += 4; |
1009 | len -= 4; |
1010 | break; |
1011 | } |
1012 | /* FALL THROUGH */ |
1013 | case 'c': |
1014 | if (len > 4 && strnEQ(s+1, "crlf", 4) |
1015 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) |
1016 | { |
1017 | mode = O_TEXT; |
1018 | s += 5; |
1019 | len -= 5; |
1020 | break; |
1021 | } |
1022 | /* FALL THROUGH */ |
1023 | default: |
1024 | goto fail_discipline; |
1025 | } |
1026 | } |
1027 | else if (isSPACE(*s)) { |
1028 | ++s; |
1029 | --len; |
1030 | } |
1031 | else { |
1032 | char *end; |
1033 | fail_discipline: |
1034 | end = strchr(s+1, ':'); |
1035 | if (!end) |
1036 | end = s+len; |
1037 | Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s); |
1038 | } |
1039 | } |
1040 | } |
1041 | return mode; |
1042 | } |
1043 | |
1044 | int |
1045 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode) |
6ff81951 |
1046 | { |
6ff81951 |
1047 | #ifdef DOSISH |
16fe6d59 |
1048 | # if defined(atarist) || defined(__MINT__) |
1049 | if (!PerlIO_flush(fp)) { |
1050 | if (mode & O_BINARY) |
1051 | ((FILE*)fp)->_flag |= _IOBIN; |
1052 | else |
1053 | ((FILE*)fp)->_flag &= ~ _IOBIN; |
6ff81951 |
1054 | return 1; |
16fe6d59 |
1055 | } |
1056 | return 0; |
1057 | # else |
1058 | if (PerlLIO_setmode(PerlIO_fileno(fp), mode) != -1) { |
1059 | # if defined(WIN32) && defined(__BORLANDC__) |
6ff81951 |
1060 | /* The translation mode of the stream is maintained independent |
1061 | * of the translation mode of the fd in the Borland RTL (heavy |
1062 | * digging through their runtime sources reveal). User has to |
1063 | * set the mode explicitly for the stream (though they don't |
1064 | * document this anywhere). GSAR 97-5-24 |
1065 | */ |
1066 | PerlIO_seek(fp,0L,0); |
16fe6d59 |
1067 | if (mode & O_BINARY) |
1068 | ((FILE*)fp)->flags |= _F_BIN; |
1069 | else |
1070 | ((FILE*)fp)->flags &= ~ _F_BIN; |
1071 | # endif |
6ff81951 |
1072 | return 1; |
1073 | } |
1074 | else |
1075 | return 0; |
16fe6d59 |
1076 | # endif |
6ff81951 |
1077 | #else |
16fe6d59 |
1078 | # if defined(USEMYBINMODE) |
1079 | if (my_binmode(fp, iotype, mode) != FALSE) |
6ff81951 |
1080 | return 1; |
1081 | else |
1082 | return 0; |
16fe6d59 |
1083 | # else |
6ff81951 |
1084 | return 1; |
16fe6d59 |
1085 | # endif |
6ff81951 |
1086 | #endif |
1087 | } |
1088 | |
a0d0e21e |
1089 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 |
1090 | /* code courtesy of William Kucharski */ |
fe14fcc3 |
1091 | #define HAS_CHSIZE |
6eb13c3b |
1092 | |
517844ec |
1093 | I32 my_chsize(fd, length) |
79072805 |
1094 | I32 fd; /* file descriptor */ |
85e6fe83 |
1095 | Off_t length; /* length to set file to */ |
6eb13c3b |
1096 | { |
6eb13c3b |
1097 | struct flock fl; |
1098 | struct stat filebuf; |
1099 | |
3028581b |
1100 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b |
1101 | return -1; |
1102 | |
1103 | if (filebuf.st_size < length) { |
1104 | |
1105 | /* extend file length */ |
1106 | |
3028581b |
1107 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b |
1108 | return -1; |
1109 | |
1110 | /* write a "0" byte */ |
1111 | |
3028581b |
1112 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b |
1113 | return -1; |
1114 | } |
1115 | else { |
1116 | /* truncate length */ |
1117 | |
1118 | fl.l_whence = 0; |
1119 | fl.l_len = 0; |
1120 | fl.l_start = length; |
a0d0e21e |
1121 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b |
1122 | |
1123 | /* |
a0d0e21e |
1124 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b |
1125 | * fcntl(2), which truncates the file so that it ends at the |
1126 | * position indicated by fl.l_start. |
1127 | * |
1128 | * Will minor miracles never cease? |
1129 | */ |
1130 | |
a0d0e21e |
1131 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b |
1132 | return -1; |
1133 | |
1134 | } |
1135 | |
1136 | return 0; |
1137 | } |
a0d0e21e |
1138 | #endif /* F_FREESP */ |
ff8e2863 |
1139 | |
a687059c |
1140 | bool |
864dbfa3 |
1141 | Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) |
a687059c |
1142 | { |
1143 | register char *tmps; |
463ee0b2 |
1144 | STRLEN len; |
a687059c |
1145 | |
79072805 |
1146 | /* assuming fp is checked earlier */ |
1147 | if (!sv) |
1148 | return TRUE; |
3280af22 |
1149 | if (PL_ofmt) { |
8990e307 |
1150 | if (SvGMAGICAL(sv)) |
79072805 |
1151 | mg_get(sv); |
463ee0b2 |
1152 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
65202027 |
1153 | PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); |
760ac839 |
1154 | return !PerlIO_error(fp); |
79072805 |
1155 | } |
463ee0b2 |
1156 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 |
1157 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 |
1158 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 |
1159 | return !PerlIO_error(fp); |
79072805 |
1160 | } |
a687059c |
1161 | } |
79072805 |
1162 | switch (SvTYPE(sv)) { |
1163 | case SVt_NULL: |
d008e5eb |
1164 | { |
1165 | dTHR; |
1166 | if (ckWARN(WARN_UNINITIALIZED)) |
b89fed5f |
1167 | report_uninit(); |
d008e5eb |
1168 | } |
ff8e2863 |
1169 | return TRUE; |
79072805 |
1170 | case SVt_IV: |
a0d0e21e |
1171 | if (SvIOK(sv)) { |
1172 | if (SvGMAGICAL(sv)) |
1173 | mg_get(sv); |
cf2093f6 |
1174 | if (SvIsUV(sv)) |
57def98f |
1175 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 |
1176 | else |
57def98f |
1177 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); |
760ac839 |
1178 | return !PerlIO_error(fp); |
a0d0e21e |
1179 | } |
1180 | /* FALL THROUGH */ |
79072805 |
1181 | default: |
463ee0b2 |
1182 | tmps = SvPV(sv, len); |
79072805 |
1183 | break; |
ff8e2863 |
1184 | } |
94e4c244 |
1185 | /* To detect whether the process is about to overstep its |
1186 | * filesize limit we would need getrlimit(). We could then |
1187 | * also transparently raise the limit with setrlimit() -- |
1188 | * but only until the system hard limit/the filesystem limit, |
c5dd3cdd |
1189 | * at which we would get EPERM. Note that when using buffered |
1190 | * io the write failure can be delayed until the flush/close. --jhi */ |
760ac839 |
1191 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c |
1192 | return FALSE; |
760ac839 |
1193 | return !PerlIO_error(fp); |
a687059c |
1194 | } |
1195 | |
79072805 |
1196 | I32 |
cea2e8a9 |
1197 | Perl_my_stat(pTHX) |
a687059c |
1198 | { |
4e35701f |
1199 | djSP; |
79072805 |
1200 | IO *io; |
2dd78f96 |
1201 | GV* gv; |
79072805 |
1202 | |
533c011a |
1203 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
1204 | EXTEND(SP,1); |
2dd78f96 |
1205 | gv = cGVOP_gv; |
748a9306 |
1206 | do_fstat: |
2dd78f96 |
1207 | io = GvIO(gv); |
8990e307 |
1208 | if (io && IoIFP(io)) { |
2dd78f96 |
1209 | PL_statgv = gv; |
3280af22 |
1210 | sv_setpv(PL_statname,""); |
1211 | PL_laststype = OP_STAT; |
1212 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); |
a687059c |
1213 | } |
1214 | else { |
2dd78f96 |
1215 | if (gv == PL_defgv) |
3280af22 |
1216 | return PL_laststatval; |
2dd78f96 |
1217 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1218 | report_evil_fh(gv, io, PL_op->op_type); |
3280af22 |
1219 | PL_statgv = Nullgv; |
1220 | sv_setpv(PL_statname,""); |
1221 | return (PL_laststatval = -1); |
a687059c |
1222 | } |
1223 | } |
1224 | else { |
748a9306 |
1225 | SV* sv = POPs; |
4b74e3fb |
1226 | char *s; |
2d8e6c8d |
1227 | STRLEN n_a; |
79072805 |
1228 | PUTBACK; |
748a9306 |
1229 | if (SvTYPE(sv) == SVt_PVGV) { |
2dd78f96 |
1230 | gv = (GV*)sv; |
748a9306 |
1231 | goto do_fstat; |
1232 | } |
1233 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { |
2dd78f96 |
1234 | gv = (GV*)SvRV(sv); |
748a9306 |
1235 | goto do_fstat; |
1236 | } |
1237 | |
2d8e6c8d |
1238 | s = SvPV(sv, n_a); |
3280af22 |
1239 | PL_statgv = Nullgv; |
1240 | sv_setpv(PL_statname, s); |
1241 | PL_laststype = OP_STAT; |
1242 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); |
599cee73 |
1243 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
cea2e8a9 |
1244 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat"); |
3280af22 |
1245 | return PL_laststatval; |
a687059c |
1246 | } |
1247 | } |
1248 | |
79072805 |
1249 | I32 |
cea2e8a9 |
1250 | Perl_my_lstat(pTHX) |
c623bd54 |
1251 | { |
4e35701f |
1252 | djSP; |
79072805 |
1253 | SV *sv; |
2d8e6c8d |
1254 | STRLEN n_a; |
533c011a |
1255 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
1256 | EXTEND(SP,1); |
638eceb6 |
1257 | if (cGVOP_gv == PL_defgv) { |
3280af22 |
1258 | if (PL_laststype != OP_LSTAT) |
cea2e8a9 |
1259 | Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); |
3280af22 |
1260 | return PL_laststatval; |
fe14fcc3 |
1261 | } |
cea2e8a9 |
1262 | Perl_croak(aTHX_ "You can't use -l on a filehandle"); |
fe14fcc3 |
1263 | } |
c623bd54 |
1264 | |
3280af22 |
1265 | PL_laststype = OP_LSTAT; |
1266 | PL_statgv = Nullgv; |
79072805 |
1267 | sv = POPs; |
1268 | PUTBACK; |
2d8e6c8d |
1269 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
2d8e6c8d |
1270 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
2d8e6c8d |
1271 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
cea2e8a9 |
1272 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat"); |
3280af22 |
1273 | return PL_laststatval; |
c623bd54 |
1274 | } |
1275 | |
a687059c |
1276 | bool |
864dbfa3 |
1277 | Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) |
a687059c |
1278 | { |
d5a9bfb0 |
1279 | return do_aexec5(really, mark, sp, 0, 0); |
1280 | } |
1281 | |
1282 | bool |
2aa1486d |
1283 | Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, |
1284 | int fd, int do_report) |
d5a9bfb0 |
1285 | { |
cd39f2b6 |
1286 | #ifdef MACOS_TRADITIONAL |
1287 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); |
1288 | #else |
a687059c |
1289 | register char **a; |
a687059c |
1290 | char *tmps; |
2d8e6c8d |
1291 | STRLEN n_a; |
a687059c |
1292 | |
79072805 |
1293 | if (sp > mark) { |
11343788 |
1294 | dTHR; |
3280af22 |
1295 | New(401,PL_Argv, sp - mark + 1, char*); |
1296 | a = PL_Argv; |
79072805 |
1297 | while (++mark <= sp) { |
1298 | if (*mark) |
2d8e6c8d |
1299 | *a++ = SvPVx(*mark, n_a); |
a687059c |
1300 | else |
1301 | *a++ = ""; |
1302 | } |
1303 | *a = Nullch; |
3280af22 |
1304 | if (*PL_Argv[0] != '/') /* will execvp use PATH? */ |
79072805 |
1305 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
2d8e6c8d |
1306 | if (really && *(tmps = SvPV(really, n_a))) |
3280af22 |
1307 | PerlProc_execvp(tmps,PL_Argv); |
a687059c |
1308 | else |
3280af22 |
1309 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
599cee73 |
1310 | if (ckWARN(WARN_EXEC)) |
cea2e8a9 |
1311 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
599cee73 |
1312 | PL_Argv[0], Strerror(errno)); |
d5a9bfb0 |
1313 | if (do_report) { |
1314 | int e = errno; |
1315 | |
1316 | PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1317 | PerlLIO_close(fd); |
1318 | } |
a687059c |
1319 | } |
bee1dbe2 |
1320 | do_execfree(); |
cd39f2b6 |
1321 | #endif |
a687059c |
1322 | return FALSE; |
1323 | } |
1324 | |
fe14fcc3 |
1325 | void |
864dbfa3 |
1326 | Perl_do_execfree(pTHX) |
ff8e2863 |
1327 | { |
3280af22 |
1328 | if (PL_Argv) { |
1329 | Safefree(PL_Argv); |
1330 | PL_Argv = Null(char **); |
ff8e2863 |
1331 | } |
3280af22 |
1332 | if (PL_Cmd) { |
1333 | Safefree(PL_Cmd); |
1334 | PL_Cmd = Nullch; |
ff8e2863 |
1335 | } |
1336 | } |
1337 | |
cd39f2b6 |
1338 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
760ac839 |
1339 | |
a687059c |
1340 | bool |
864dbfa3 |
1341 | Perl_do_exec(pTHX_ char *cmd) |
a687059c |
1342 | { |
e446cec8 |
1343 | return do_exec3(cmd,0,0); |
1344 | } |
1345 | |
1346 | bool |
864dbfa3 |
1347 | Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) |
e446cec8 |
1348 | { |
a687059c |
1349 | register char **a; |
1350 | register char *s; |
a687059c |
1351 | char flags[10]; |
1352 | |
748a9306 |
1353 | while (*cmd && isSPACE(*cmd)) |
1354 | cmd++; |
1355 | |
a687059c |
1356 | /* save an extra exec if possible */ |
1357 | |
bf38876a |
1358 | #ifdef CSH |
3280af22 |
1359 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { |
a687059c |
1360 | strcpy(flags,"-c"); |
3280af22 |
1361 | s = cmd+PL_cshlen+3; |
a687059c |
1362 | if (*s == 'f') { |
1363 | s++; |
1364 | strcat(flags,"f"); |
1365 | } |
1366 | if (*s == ' ') |
1367 | s++; |
1368 | if (*s++ == '\'') { |
1369 | char *ncmd = s; |
1370 | |
1371 | while (*s) |
1372 | s++; |
1373 | if (s[-1] == '\n') |
1374 | *--s = '\0'; |
1375 | if (s[-1] == '\'') { |
1376 | *--s = '\0'; |
3280af22 |
1377 | PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
1378 | *s = '\''; |
1379 | return FALSE; |
1380 | } |
1381 | } |
1382 | } |
bf38876a |
1383 | #endif /* CSH */ |
a687059c |
1384 | |
1385 | /* see if there are shell metacharacters in it */ |
1386 | |
748a9306 |
1387 | if (*cmd == '.' && isSPACE(cmd[1])) |
1388 | goto doshell; |
1389 | |
1390 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
1391 | goto doshell; |
1392 | |
c170e444 |
1393 | for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 |
1394 | if (*s == '=') |
1395 | goto doshell; |
748a9306 |
1396 | |
a687059c |
1397 | for (s = cmd; *s; s++) { |
93a17b20 |
1398 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c |
1399 | if (*s == '\n' && !s[1]) { |
1400 | *s = '\0'; |
1401 | break; |
1402 | } |
603a98b0 |
1403 | /* handle the 2>&1 construct at the end */ |
1404 | if (*s == '>' && s[1] == '&' && s[2] == '1' |
1405 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) |
1406 | && (!s[3] || isSPACE(s[3]))) |
1407 | { |
1408 | char *t = s + 3; |
1409 | |
1410 | while (*t && isSPACE(*t)) |
1411 | ++t; |
1412 | if (!*t && (dup2(1,2) != -1)) { |
1413 | s[-2] = '\0'; |
1414 | break; |
1415 | } |
1416 | } |
a687059c |
1417 | doshell: |
3280af22 |
1418 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
a687059c |
1419 | return FALSE; |
1420 | } |
1421 | } |
748a9306 |
1422 | |
3280af22 |
1423 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1424 | PL_Cmd = savepvn(cmd, s-cmd); |
1425 | a = PL_Argv; |
1426 | for (s = PL_Cmd; *s;) { |
99b89507 |
1427 | while (*s && isSPACE(*s)) s++; |
a687059c |
1428 | if (*s) |
1429 | *(a++) = s; |
99b89507 |
1430 | while (*s && !isSPACE(*s)) s++; |
a687059c |
1431 | if (*s) |
1432 | *s++ = '\0'; |
1433 | } |
1434 | *a = Nullch; |
3280af22 |
1435 | if (PL_Argv[0]) { |
1436 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
b1248f16 |
1437 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1438 | do_execfree(); |
a687059c |
1439 | goto doshell; |
b1248f16 |
1440 | } |
d008e5eb |
1441 | { |
1442 | dTHR; |
e446cec8 |
1443 | int e = errno; |
1444 | |
d008e5eb |
1445 | if (ckWARN(WARN_EXEC)) |
cea2e8a9 |
1446 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
d008e5eb |
1447 | PL_Argv[0], Strerror(errno)); |
e446cec8 |
1448 | if (do_report) { |
1449 | PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1450 | PerlLIO_close(fd); |
1451 | } |
d008e5eb |
1452 | } |
a687059c |
1453 | } |
ff8e2863 |
1454 | do_execfree(); |
a687059c |
1455 | return FALSE; |
1456 | } |
1457 | |
6890e559 |
1458 | #endif /* OS2 || WIN32 */ |
760ac839 |
1459 | |
79072805 |
1460 | I32 |
864dbfa3 |
1461 | Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) |
a687059c |
1462 | { |
11343788 |
1463 | dTHR; |
79072805 |
1464 | register I32 val; |
1465 | register I32 val2; |
1466 | register I32 tot = 0; |
20408e3c |
1467 | char *what; |
a687059c |
1468 | char *s; |
79072805 |
1469 | SV **oldmark = mark; |
2d8e6c8d |
1470 | STRLEN n_a; |
a687059c |
1471 | |
20408e3c |
1472 | #define APPLY_TAINT_PROPER() \ |
3280af22 |
1473 | STMT_START { \ |
17406bd6 |
1474 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 |
1475 | } STMT_END |
20408e3c |
1476 | |
1477 | /* This is a first heuristic; it doesn't catch tainting magic. */ |
3280af22 |
1478 | if (PL_tainting) { |
463ee0b2 |
1479 | while (++mark <= sp) { |
bbce6d69 |
1480 | if (SvTAINTED(*mark)) { |
1481 | TAINT; |
1482 | break; |
1483 | } |
463ee0b2 |
1484 | } |
1485 | mark = oldmark; |
1486 | } |
a687059c |
1487 | switch (type) { |
79072805 |
1488 | case OP_CHMOD: |
20408e3c |
1489 | what = "chmod"; |
1490 | APPLY_TAINT_PROPER(); |
79072805 |
1491 | if (++mark <= sp) { |
463ee0b2 |
1492 | val = SvIVx(*mark); |
20408e3c |
1493 | APPLY_TAINT_PROPER(); |
1494 | tot = sp - mark; |
79072805 |
1495 | while (++mark <= sp) { |
2d8e6c8d |
1496 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1497 | APPLY_TAINT_PROPER(); |
1498 | if (PerlLIO_chmod(name, val)) |
a687059c |
1499 | tot--; |
1500 | } |
1501 | } |
1502 | break; |
fe14fcc3 |
1503 | #ifdef HAS_CHOWN |
79072805 |
1504 | case OP_CHOWN: |
20408e3c |
1505 | what = "chown"; |
1506 | APPLY_TAINT_PROPER(); |
79072805 |
1507 | if (sp - mark > 2) { |
463ee0b2 |
1508 | val = SvIVx(*++mark); |
1509 | val2 = SvIVx(*++mark); |
20408e3c |
1510 | APPLY_TAINT_PROPER(); |
a0d0e21e |
1511 | tot = sp - mark; |
79072805 |
1512 | while (++mark <= sp) { |
2d8e6c8d |
1513 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1514 | APPLY_TAINT_PROPER(); |
36660982 |
1515 | if (PerlLIO_chown(name, val, val2)) |
a687059c |
1516 | tot--; |
1517 | } |
1518 | } |
1519 | break; |
b1248f16 |
1520 | #endif |
dd64f1c3 |
1521 | /* |
1522 | XXX Should we make lchown() directly available from perl? |
1523 | For now, we'll let Configure test for HAS_LCHOWN, but do |
1524 | nothing in the core. |
1525 | --AD 5/1998 |
1526 | */ |
fe14fcc3 |
1527 | #ifdef HAS_KILL |
79072805 |
1528 | case OP_KILL: |
20408e3c |
1529 | what = "kill"; |
1530 | APPLY_TAINT_PROPER(); |
55497cff |
1531 | if (mark == sp) |
1532 | break; |
2d8e6c8d |
1533 | s = SvPVx(*++mark, n_a); |
79072805 |
1534 | if (isUPPER(*s)) { |
1535 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1536 | s += 3; |
1537 | if (!(val = whichsig(s))) |
cea2e8a9 |
1538 | Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); |
79072805 |
1539 | } |
1540 | else |
463ee0b2 |
1541 | val = SvIVx(*mark); |
20408e3c |
1542 | APPLY_TAINT_PROPER(); |
1543 | tot = sp - mark; |
3595fcef |
1544 | #ifdef VMS |
1545 | /* kill() doesn't do process groups (job trees?) under VMS */ |
1546 | if (val < 0) val = -val; |
1547 | if (val == SIGKILL) { |
1548 | # include <starlet.h> |
1549 | /* Use native sys$delprc() to insure that target process is |
1550 | * deleted; supervisor-mode images don't pay attention to |
1551 | * CRTL's emulation of Unix-style signals and kill() |
1552 | */ |
1553 | while (++mark <= sp) { |
1554 | I32 proc = SvIVx(*mark); |
1555 | register unsigned long int __vmssts; |
20408e3c |
1556 | APPLY_TAINT_PROPER(); |
3595fcef |
1557 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1558 | tot--; |
1559 | switch (__vmssts) { |
1560 | case SS$_NONEXPR: |
1561 | case SS$_NOSUCHNODE: |
1562 | SETERRNO(ESRCH,__vmssts); |
1563 | break; |
1564 | case SS$_NOPRIV: |
1565 | SETERRNO(EPERM,__vmssts); |
1566 | break; |
1567 | default: |
1568 | SETERRNO(EVMSERR,__vmssts); |
1569 | } |
1570 | } |
1571 | } |
1572 | break; |
1573 | } |
1574 | #endif |
79072805 |
1575 | if (val < 0) { |
1576 | val = -val; |
1577 | while (++mark <= sp) { |
463ee0b2 |
1578 | I32 proc = SvIVx(*mark); |
20408e3c |
1579 | APPLY_TAINT_PROPER(); |
fe14fcc3 |
1580 | #ifdef HAS_KILLPG |
3028581b |
1581 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c |
1582 | #else |
3028581b |
1583 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c |
1584 | #endif |
79072805 |
1585 | tot--; |
a687059c |
1586 | } |
79072805 |
1587 | } |
1588 | else { |
1589 | while (++mark <= sp) { |
20408e3c |
1590 | I32 proc = SvIVx(*mark); |
1591 | APPLY_TAINT_PROPER(); |
1592 | if (PerlProc_kill(proc, val)) |
79072805 |
1593 | tot--; |
a687059c |
1594 | } |
1595 | } |
1596 | break; |
b1248f16 |
1597 | #endif |
79072805 |
1598 | case OP_UNLINK: |
20408e3c |
1599 | what = "unlink"; |
1600 | APPLY_TAINT_PROPER(); |
79072805 |
1601 | tot = sp - mark; |
1602 | while (++mark <= sp) { |
2d8e6c8d |
1603 | s = SvPVx(*mark, n_a); |
20408e3c |
1604 | APPLY_TAINT_PROPER(); |
3280af22 |
1605 | if (PL_euid || PL_unsafe) { |
a687059c |
1606 | if (UNLINK(s)) |
1607 | tot--; |
1608 | } |
1609 | else { /* don't let root wipe out directories without -U */ |
3280af22 |
1610 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c |
1611 | tot--; |
1612 | else { |
1613 | if (UNLINK(s)) |
1614 | tot--; |
1615 | } |
1616 | } |
1617 | } |
1618 | break; |
a0d0e21e |
1619 | #ifdef HAS_UTIME |
79072805 |
1620 | case OP_UTIME: |
20408e3c |
1621 | what = "utime"; |
1622 | APPLY_TAINT_PROPER(); |
79072805 |
1623 | if (sp - mark > 2) { |
748a9306 |
1624 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 |
1625 | struct utimbuf utbuf; |
1626 | #else |
a687059c |
1627 | struct { |
dd2821f6 |
1628 | Time_t actime; |
1629 | Time_t modtime; |
a687059c |
1630 | } utbuf; |
663a0e37 |
1631 | #endif |
a687059c |
1632 | |
afd9f252 |
1633 | Zero(&utbuf, sizeof utbuf, char); |
517844ec |
1634 | #ifdef BIG_TIME |
dd2821f6 |
1635 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1636 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ |
517844ec |
1637 | #else |
dd2821f6 |
1638 | utbuf.actime = (Time_t)SvIVx(*++mark); /* time accessed */ |
1639 | utbuf.modtime = (Time_t)SvIVx(*++mark); /* time modified */ |
517844ec |
1640 | #endif |
20408e3c |
1641 | APPLY_TAINT_PROPER(); |
79072805 |
1642 | tot = sp - mark; |
1643 | while (++mark <= sp) { |
2d8e6c8d |
1644 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1645 | APPLY_TAINT_PROPER(); |
1646 | if (PerlLIO_utime(name, &utbuf)) |
a687059c |
1647 | tot--; |
1648 | } |
a687059c |
1649 | } |
1650 | else |
79072805 |
1651 | tot = 0; |
a687059c |
1652 | break; |
a0d0e21e |
1653 | #endif |
a687059c |
1654 | } |
1655 | return tot; |
20408e3c |
1656 | |
20408e3c |
1657 | #undef APPLY_TAINT_PROPER |
a687059c |
1658 | } |
1659 | |
1660 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
a0d0e21e |
1661 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae |
1662 | bool |
1663 | Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp) |
1664 | /* Note: we use `effective' both for uids and gids. |
1665 | * Here we are betting on Uid_t being equal or wider than Gid_t. */ |
a687059c |
1666 | { |
bee1dbe2 |
1667 | #ifdef DOSISH |
fe14fcc3 |
1668 | /* [Comments and code from Len Reed] |
1669 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write |
1670 | * to write-protected files. The execute permission bit is set |
1671 | * by the Miscrosoft C library stat() function for the following: |
1672 | * .exe files |
1673 | * .com files |
1674 | * .bat files |
1675 | * directories |
1676 | * All files and directories are readable. |
1677 | * Directories and special files, e.g. "CON", cannot be |
1678 | * write-protected. |
1679 | * [Comment by Tom Dinger -- a directory can have the write-protect |
1680 | * bit set in the file system, but DOS permits changes to |
1681 | * the directory anyway. In addition, all bets are off |
1682 | * here for networked software, such as Novell and |
1683 | * Sun's PC-NFS.] |
1684 | */ |
1685 | |
bee1dbe2 |
1686 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1687 | * too so it will actually look into the files for magic numbers |
1688 | */ |
7f4774ae |
1689 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 |
1690 | |
55497cff |
1691 | #else /* ! DOSISH */ |
3280af22 |
1692 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
7f4774ae |
1693 | if (mode == S_IXUSR) { |
c623bd54 |
1694 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c |
1695 | return TRUE; |
1696 | } |
1697 | else |
1698 | return TRUE; /* root reads and writes anything */ |
1699 | return FALSE; |
1700 | } |
3280af22 |
1701 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
7f4774ae |
1702 | if (statbufp->st_mode & mode) |
a687059c |
1703 | return TRUE; /* ok as "user" */ |
1704 | } |
d8eceb89 |
1705 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae |
1706 | if (statbufp->st_mode & mode >> 3) |
a687059c |
1707 | return TRUE; /* ok as "group" */ |
1708 | } |
7f4774ae |
1709 | else if (statbufp->st_mode & mode >> 6) |
a687059c |
1710 | return TRUE; /* ok as "other" */ |
1711 | return FALSE; |
55497cff |
1712 | #endif /* ! DOSISH */ |
a687059c |
1713 | } |
a0d0e21e |
1714 | #endif /* ! VMS */ |
a687059c |
1715 | |
d8eceb89 |
1716 | bool |
1717 | Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) |
a687059c |
1718 | { |
cd39f2b6 |
1719 | #ifdef MACOS_TRADITIONAL |
1720 | /* This is simply not correct for AppleShare, but fix it yerself. */ |
1721 | return TRUE; |
1722 | #else |
3280af22 |
1723 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c |
1724 | return TRUE; |
fe14fcc3 |
1725 | #ifdef HAS_GETGROUPS |
a687059c |
1726 | #ifndef NGROUPS |
1727 | #define NGROUPS 32 |
1728 | #endif |
1729 | { |
a0d0e21e |
1730 | Groups_t gary[NGROUPS]; |
79072805 |
1731 | I32 anum; |
a687059c |
1732 | |
1733 | anum = getgroups(NGROUPS,gary); |
1734 | while (--anum >= 0) |
1735 | if (gary[anum] == testgid) |
1736 | return TRUE; |
1737 | } |
1738 | #endif |
1739 | return FALSE; |
cd39f2b6 |
1740 | #endif |
a687059c |
1741 | } |
c2ab57d4 |
1742 | |
fe14fcc3 |
1743 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
1744 | |
79072805 |
1745 | I32 |
864dbfa3 |
1746 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1747 | { |
11343788 |
1748 | dTHR; |
c2ab57d4 |
1749 | key_t key; |
79072805 |
1750 | I32 n, flags; |
c2ab57d4 |
1751 | |
463ee0b2 |
1752 | key = (key_t)SvNVx(*++mark); |
1753 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); |
1754 | flags = SvIVx(*++mark); |
748a9306 |
1755 | SETERRNO(0,0); |
c2ab57d4 |
1756 | switch (optype) |
1757 | { |
fe14fcc3 |
1758 | #ifdef HAS_MSG |
79072805 |
1759 | case OP_MSGGET: |
c2ab57d4 |
1760 | return msgget(key, flags); |
e5d73d77 |
1761 | #endif |
fe14fcc3 |
1762 | #ifdef HAS_SEM |
79072805 |
1763 | case OP_SEMGET: |
c2ab57d4 |
1764 | return semget(key, n, flags); |
e5d73d77 |
1765 | #endif |
fe14fcc3 |
1766 | #ifdef HAS_SHM |
79072805 |
1767 | case OP_SHMGET: |
c2ab57d4 |
1768 | return shmget(key, n, flags); |
e5d73d77 |
1769 | #endif |
fe14fcc3 |
1770 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1771 | default: |
cea2e8a9 |
1772 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1773 | #endif |
c2ab57d4 |
1774 | } |
1775 | return -1; /* should never happen */ |
1776 | } |
1777 | |
79072805 |
1778 | I32 |
864dbfa3 |
1779 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1780 | { |
11343788 |
1781 | dTHR; |
79072805 |
1782 | SV *astr; |
c2ab57d4 |
1783 | char *a; |
a0d0e21e |
1784 | I32 id, n, cmd, infosize, getinfo; |
1785 | I32 ret = -1; |
c2ab57d4 |
1786 | |
463ee0b2 |
1787 | id = SvIVx(*++mark); |
1788 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
1789 | cmd = SvIVx(*++mark); |
79072805 |
1790 | astr = *++mark; |
c2ab57d4 |
1791 | infosize = 0; |
1792 | getinfo = (cmd == IPC_STAT); |
1793 | |
1794 | switch (optype) |
1795 | { |
fe14fcc3 |
1796 | #ifdef HAS_MSG |
79072805 |
1797 | case OP_MSGCTL: |
c2ab57d4 |
1798 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1799 | infosize = sizeof(struct msqid_ds); |
1800 | break; |
e5d73d77 |
1801 | #endif |
fe14fcc3 |
1802 | #ifdef HAS_SHM |
79072805 |
1803 | case OP_SHMCTL: |
c2ab57d4 |
1804 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1805 | infosize = sizeof(struct shmid_ds); |
1806 | break; |
e5d73d77 |
1807 | #endif |
fe14fcc3 |
1808 | #ifdef HAS_SEM |
79072805 |
1809 | case OP_SEMCTL: |
39398f3f |
1810 | #ifdef Semctl |
c2ab57d4 |
1811 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1812 | infosize = sizeof(struct semid_ds); |
1813 | else if (cmd == GETALL || cmd == SETALL) |
1814 | { |
8e591e46 |
1815 | struct semid_ds semds; |
bd89102f |
1816 | union semun semun; |
e6f0bdd6 |
1817 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1818 | semun.buff = &semds; |
1819 | #else |
84902520 |
1820 | semun.buf = &semds; |
e6f0bdd6 |
1821 | #endif |
c2ab57d4 |
1822 | getinfo = (cmd == GETALL); |
9b89d93d |
1823 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1824 | return -1; |
6e21c824 |
1825 | infosize = semds.sem_nsems * sizeof(short); |
1826 | /* "short" is technically wrong but much more portable |
1827 | than guessing about u_?short(_t)? */ |
c2ab57d4 |
1828 | } |
39398f3f |
1829 | #else |
cea2e8a9 |
1830 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f |
1831 | #endif |
c2ab57d4 |
1832 | break; |
e5d73d77 |
1833 | #endif |
fe14fcc3 |
1834 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1835 | default: |
cea2e8a9 |
1836 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1837 | #endif |
c2ab57d4 |
1838 | } |
1839 | |
1840 | if (infosize) |
1841 | { |
a0d0e21e |
1842 | STRLEN len; |
c2ab57d4 |
1843 | if (getinfo) |
1844 | { |
a0d0e21e |
1845 | SvPV_force(astr, len); |
1846 | a = SvGROW(astr, infosize+1); |
c2ab57d4 |
1847 | } |
1848 | else |
1849 | { |
463ee0b2 |
1850 | a = SvPV(astr, len); |
1851 | if (len != infosize) |
cea2e8a9 |
1852 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 |
1853 | PL_op_desc[optype], |
1854 | (unsigned long)len, |
1855 | (long)infosize); |
c2ab57d4 |
1856 | } |
1857 | } |
1858 | else |
1859 | { |
c030ccd9 |
1860 | IV i = SvIV(astr); |
56431972 |
1861 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 |
1862 | } |
748a9306 |
1863 | SETERRNO(0,0); |
c2ab57d4 |
1864 | switch (optype) |
1865 | { |
fe14fcc3 |
1866 | #ifdef HAS_MSG |
79072805 |
1867 | case OP_MSGCTL: |
bee1dbe2 |
1868 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 |
1869 | break; |
e5d73d77 |
1870 | #endif |
fe14fcc3 |
1871 | #ifdef HAS_SEM |
bd89102f |
1872 | case OP_SEMCTL: { |
39398f3f |
1873 | #ifdef Semctl |
bd89102f |
1874 | union semun unsemds; |
1875 | |
e6f0bdd6 |
1876 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1877 | unsemds.buff = (struct semid_ds *)a; |
1878 | #else |
bd89102f |
1879 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 |
1880 | #endif |
bd89102f |
1881 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f |
1882 | #else |
cea2e8a9 |
1883 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f |
1884 | #endif |
bd89102f |
1885 | } |
c2ab57d4 |
1886 | break; |
e5d73d77 |
1887 | #endif |
fe14fcc3 |
1888 | #ifdef HAS_SHM |
79072805 |
1889 | case OP_SHMCTL: |
bee1dbe2 |
1890 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 |
1891 | break; |
e5d73d77 |
1892 | #endif |
c2ab57d4 |
1893 | } |
1894 | if (getinfo && ret >= 0) { |
79072805 |
1895 | SvCUR_set(astr, infosize); |
1896 | *SvEND(astr) = '\0'; |
a0d0e21e |
1897 | SvSETMAGIC(astr); |
c2ab57d4 |
1898 | } |
1899 | return ret; |
1900 | } |
1901 | |
79072805 |
1902 | I32 |
864dbfa3 |
1903 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1904 | { |
fe14fcc3 |
1905 | #ifdef HAS_MSG |
11343788 |
1906 | dTHR; |
79072805 |
1907 | SV *mstr; |
c2ab57d4 |
1908 | char *mbuf; |
79072805 |
1909 | I32 id, msize, flags; |
463ee0b2 |
1910 | STRLEN len; |
c2ab57d4 |
1911 | |
463ee0b2 |
1912 | id = SvIVx(*++mark); |
79072805 |
1913 | mstr = *++mark; |
463ee0b2 |
1914 | flags = SvIVx(*++mark); |
1915 | mbuf = SvPV(mstr, len); |
1916 | if ((msize = len - sizeof(long)) < 0) |
cea2e8a9 |
1917 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 |
1918 | SETERRNO(0,0); |
bee1dbe2 |
1919 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 |
1920 | #else |
cea2e8a9 |
1921 | Perl_croak(aTHX_ "msgsnd not implemented"); |
e5d73d77 |
1922 | #endif |
c2ab57d4 |
1923 | } |
1924 | |
79072805 |
1925 | I32 |
864dbfa3 |
1926 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1927 | { |
fe14fcc3 |
1928 | #ifdef HAS_MSG |
11343788 |
1929 | dTHR; |
79072805 |
1930 | SV *mstr; |
c2ab57d4 |
1931 | char *mbuf; |
1932 | long mtype; |
79072805 |
1933 | I32 id, msize, flags, ret; |
463ee0b2 |
1934 | STRLEN len; |
79072805 |
1935 | |
463ee0b2 |
1936 | id = SvIVx(*++mark); |
79072805 |
1937 | mstr = *++mark; |
c2e66d9e |
1938 | /* suppress warning when reading into undef var --jhi */ |
1939 | if (! SvOK(mstr)) |
1940 | sv_setpvn(mstr, "", 0); |
463ee0b2 |
1941 | msize = SvIVx(*++mark); |
1942 | mtype = (long)SvIVx(*++mark); |
1943 | flags = SvIVx(*++mark); |
a0d0e21e |
1944 | SvPV_force(mstr, len); |
1945 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
1946 | |
748a9306 |
1947 | SETERRNO(0,0); |
bee1dbe2 |
1948 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 |
1949 | if (ret >= 0) { |
79072805 |
1950 | SvCUR_set(mstr, sizeof(long)+ret); |
1951 | *SvEND(mstr) = '\0'; |
41d6edb2 |
1952 | #ifndef INCOMPLETE_TAINTS |
1953 | /* who knows who has been playing with this message? */ |
1954 | SvTAINTED_on(mstr); |
1955 | #endif |
c2ab57d4 |
1956 | } |
1957 | return ret; |
e5d73d77 |
1958 | #else |
cea2e8a9 |
1959 | Perl_croak(aTHX_ "msgrcv not implemented"); |
e5d73d77 |
1960 | #endif |
c2ab57d4 |
1961 | } |
1962 | |
79072805 |
1963 | I32 |
864dbfa3 |
1964 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1965 | { |
fe14fcc3 |
1966 | #ifdef HAS_SEM |
11343788 |
1967 | dTHR; |
79072805 |
1968 | SV *opstr; |
c2ab57d4 |
1969 | char *opbuf; |
463ee0b2 |
1970 | I32 id; |
1971 | STRLEN opsize; |
c2ab57d4 |
1972 | |
463ee0b2 |
1973 | id = SvIVx(*++mark); |
79072805 |
1974 | opstr = *++mark; |
463ee0b2 |
1975 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 |
1976 | if (opsize < sizeof(struct sembuf) |
1977 | || (opsize % sizeof(struct sembuf)) != 0) { |
748a9306 |
1978 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 |
1979 | return -1; |
1980 | } |
748a9306 |
1981 | SETERRNO(0,0); |
6e21c824 |
1982 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 |
1983 | #else |
cea2e8a9 |
1984 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 |
1985 | #endif |
c2ab57d4 |
1986 | } |
1987 | |
79072805 |
1988 | I32 |
864dbfa3 |
1989 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1990 | { |
fe14fcc3 |
1991 | #ifdef HAS_SHM |
11343788 |
1992 | dTHR; |
79072805 |
1993 | SV *mstr; |
c2ab57d4 |
1994 | char *mbuf, *shm; |
79072805 |
1995 | I32 id, mpos, msize; |
463ee0b2 |
1996 | STRLEN len; |
c2ab57d4 |
1997 | struct shmid_ds shmds; |
c2ab57d4 |
1998 | |
463ee0b2 |
1999 | id = SvIVx(*++mark); |
79072805 |
2000 | mstr = *++mark; |
463ee0b2 |
2001 | mpos = SvIVx(*++mark); |
2002 | msize = SvIVx(*++mark); |
748a9306 |
2003 | SETERRNO(0,0); |
c2ab57d4 |
2004 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
2005 | return -1; |
2006 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { |
748a9306 |
2007 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 |
2008 | return -1; |
2009 | } |
8ac85365 |
2010 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 |
2011 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2012 | return -1; |
79072805 |
2013 | if (optype == OP_SHMREAD) { |
9f538c04 |
2014 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
2015 | if (! SvOK(mstr)) |
2016 | sv_setpvn(mstr, "", 0); |
a0d0e21e |
2017 | SvPV_force(mstr, len); |
2018 | mbuf = SvGROW(mstr, msize+1); |
2019 | |
bee1dbe2 |
2020 | Copy(shm + mpos, mbuf, msize, char); |
79072805 |
2021 | SvCUR_set(mstr, msize); |
2022 | *SvEND(mstr) = '\0'; |
a0d0e21e |
2023 | SvSETMAGIC(mstr); |
d929ce6f |
2024 | #ifndef INCOMPLETE_TAINTS |
2025 | /* who knows who has been playing with this shared memory? */ |
2026 | SvTAINTED_on(mstr); |
2027 | #endif |
c2ab57d4 |
2028 | } |
2029 | else { |
79072805 |
2030 | I32 n; |
c2ab57d4 |
2031 | |
a0d0e21e |
2032 | mbuf = SvPV(mstr, len); |
463ee0b2 |
2033 | if ((n = len) > msize) |
c2ab57d4 |
2034 | n = msize; |
bee1dbe2 |
2035 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 |
2036 | if (n < msize) |
bee1dbe2 |
2037 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 |
2038 | } |
2039 | return shmdt(shm); |
e5d73d77 |
2040 | #else |
cea2e8a9 |
2041 | Perl_croak(aTHX_ "shm I/O not implemented"); |
e5d73d77 |
2042 | #endif |
c2ab57d4 |
2043 | } |
2044 | |
fe14fcc3 |
2045 | #endif /* SYSV IPC */ |
4e35701f |
2046 | |