Commit | Line | Data |
a0d0e21e |
1 | /* doio.c |
a687059c |
2 | * |
4eb8286e |
3 | * Copyright (c) 1991-1999, 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 | |
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> |
29209bc5 |
67 | # if defined(USE_SOCKS) && defined(I_SOCKS) |
86959918 |
68 | # include <socks.h> |
69 | # endif |
70 | # ifdef I_NETBSD |
71 | # include <netdb.h> |
72 | # endif |
232e078e |
73 | # ifndef ENOTSOCK |
74 | # ifdef I_NET_ERRNO |
75 | # include <net/errno.h> |
76 | # endif |
77 | # endif |
78 | #endif |
79 | |
d574b85e |
80 | /* Put this after #includes because <unistd.h> defines _XOPEN_*. */ |
81 | #ifndef Sock_size_t |
137443ea |
82 | # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__) |
d574b85e |
83 | # define Sock_size_t Size_t |
84 | # else |
85 | # define Sock_size_t int |
86 | # endif |
87 | #endif |
88 | |
a687059c |
89 | bool |
6170680b |
90 | Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw, |
91 | int rawmode, int rawperm, PerlIO *supplied_fp) |
92 | { |
93 | return do_open9(gv, name, len, as_raw, rawmode, rawperm, |
94 | supplied_fp, Nullsv, 0); |
95 | } |
96 | |
97 | bool |
98 | Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw, |
99 | int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, |
100 | I32 num_svs) |
a687059c |
101 | { |
a0d0e21e |
102 | register IO *io = GvIOn(gv); |
760ac839 |
103 | PerlIO *saveifp = Nullfp; |
104 | PerlIO *saveofp = Nullfp; |
6e21c824 |
105 | char savetype = ' '; |
c07a80fd |
106 | int writing = 0; |
760ac839 |
107 | PerlIO *fp; |
c07a80fd |
108 | int fd; |
109 | int result; |
3500f679 |
110 | bool was_fdopen = FALSE; |
a687059c |
111 | |
3280af22 |
112 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd |
113 | |
a0d0e21e |
114 | if (IoIFP(io)) { |
760ac839 |
115 | fd = PerlIO_fileno(IoIFP(io)); |
8990e307 |
116 | if (IoTYPE(io) == '-') |
c2ab57d4 |
117 | result = 0; |
3280af22 |
118 | else if (fd <= PL_maxsysfd) { |
8990e307 |
119 | saveifp = IoIFP(io); |
120 | saveofp = IoOFP(io); |
121 | savetype = IoTYPE(io); |
6e21c824 |
122 | result = 0; |
123 | } |
8990e307 |
124 | else if (IoTYPE(io) == '|') |
3028581b |
125 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 |
126 | else if (IoIFP(io) != IoOFP(io)) { |
127 | if (IoOFP(io)) { |
760ac839 |
128 | result = PerlIO_close(IoOFP(io)); |
6170680b |
129 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
130 | } |
131 | else |
760ac839 |
132 | result = PerlIO_close(IoIFP(io)); |
a687059c |
133 | } |
a687059c |
134 | else |
760ac839 |
135 | result = PerlIO_close(IoIFP(io)); |
3280af22 |
136 | if (result == EOF && fd > PL_maxsysfd) |
bf49b057 |
137 | PerlIO_printf(Perl_error_log, |
6170680b |
138 | "Warning: unable to close filehandle %s properly.\n", |
139 | GvENAME(gv)); |
8990e307 |
140 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c |
141 | } |
c07a80fd |
142 | |
143 | if (as_raw) { |
09458382 |
144 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
5ff3f7a4 |
145 | rawmode |= O_LARGEFILE; |
146 | #endif |
147 | |
9d116dd7 |
148 | #ifndef O_ACCMODE |
149 | #define O_ACCMODE 3 /* Assume traditional implementation */ |
150 | #endif |
5ff3f7a4 |
151 | |
9d116dd7 |
152 | switch (result = rawmode & O_ACCMODE) { |
153 | case O_RDONLY: |
154 | IoTYPE(io) = '<'; |
155 | break; |
156 | case O_WRONLY: |
157 | IoTYPE(io) = '>'; |
158 | break; |
159 | case O_RDWR: |
160 | default: |
161 | IoTYPE(io) = '+'; |
162 | break; |
163 | } |
164 | |
c07a80fd |
165 | writing = (result > 0); |
3028581b |
166 | fd = PerlLIO_open3(name, rawmode, rawperm); |
9d116dd7 |
167 | |
c07a80fd |
168 | if (fd == -1) |
169 | fp = NULL; |
170 | else { |
dff6d3cd |
171 | const char *fpmode; |
9d116dd7 |
172 | if (result == O_RDONLY) |
360e5741 |
173 | fpmode = "r"; |
174 | #ifdef O_APPEND |
175 | else if (rawmode & O_APPEND) |
9d116dd7 |
176 | fpmode = (result == O_WRONLY) ? "a" : "a+"; |
360e5741 |
177 | #endif |
178 | else |
9d116dd7 |
179 | fpmode = (result == O_WRONLY) ? "w" : "r+"; |
360e5741 |
180 | fp = PerlIO_fdopen(fd, fpmode); |
c07a80fd |
181 | if (!fp) |
3028581b |
182 | PerlLIO_close(fd); |
c07a80fd |
183 | } |
a687059c |
184 | } |
c07a80fd |
185 | else { |
186 | char *myname; |
6170680b |
187 | char *type = name; |
188 | char *otype = name; |
189 | STRLEN tlen; |
190 | STRLEN otlen = len; |
c07a80fd |
191 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
192 | int dodup; |
193 | |
6170680b |
194 | if (num_svs) { |
195 | type = name; |
196 | name = SvPV(svs, tlen) ; |
197 | len = (I32)tlen; |
198 | } |
199 | |
200 | tlen = otlen; |
c07a80fd |
201 | myname = savepvn(name, len); |
202 | SAVEFREEPV(myname); |
203 | name = myname; |
6170680b |
204 | if (!num_svs) |
205 | while (tlen && isSPACE(type[tlen-1])) |
206 | type[--tlen] = '\0'; |
c07a80fd |
207 | |
208 | mode[0] = mode[1] = mode[2] = '\0'; |
6170680b |
209 | IoTYPE(io) = *type; |
210 | if (*type == '+' && tlen > 1 && type[tlen-1] != '|') { /* scary */ |
211 | mode[1] = *type++; |
212 | --tlen; |
c07a80fd |
213 | writing = 1; |
a687059c |
214 | } |
c07a80fd |
215 | |
6170680b |
216 | if (*type == '|') { |
217 | if (num_svs && (tlen != 2 || type[1] != '-')) { |
218 | unknown_desr: |
219 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", otlen, otype); |
220 | } |
c07a80fd |
221 | /*SUPPRESS 530*/ |
6170680b |
222 | for (type++; isSPACE(*type); type++) ; |
223 | if (!num_svs) |
224 | name = type; |
06eaf0bc |
225 | if (*name == '\0') { /* command is missing 19990114 */ |
226 | dTHR; |
227 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
228 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc |
229 | errno = EPIPE; |
230 | goto say_false; |
231 | } |
6170680b |
232 | if (strNE(name,"-") || num_svs) |
c07a80fd |
233 | TAINT_ENV(); |
234 | TAINT_PROPER("piped open"); |
7b8d334a |
235 | if (name[strlen(name)-1] == '|') { |
d008e5eb |
236 | dTHR; |
7b8d334a |
237 | name[strlen(name)-1] = '\0' ; |
599cee73 |
238 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
239 | Perl_warner(aTHX_ WARN_PIPE, "Can't do bidirectional pipe"); |
7b8d334a |
240 | } |
3028581b |
241 | fp = PerlProc_popen(name,"w"); |
c07a80fd |
242 | writing = 1; |
243 | } |
6170680b |
244 | else if (*type == '>') { |
c07a80fd |
245 | TAINT_PROPER("open"); |
6170680b |
246 | type++; |
247 | if (*type == '>') { |
c07a80fd |
248 | mode[0] = IoTYPE(io) = 'a'; |
6170680b |
249 | type++; |
250 | tlen--; |
a0d0e21e |
251 | } |
c07a80fd |
252 | else |
253 | mode[0] = 'w'; |
254 | writing = 1; |
255 | |
6170680b |
256 | if (num_svs && tlen != 1) |
257 | goto unknown_desr; |
258 | if (*type == '&') { |
259 | name = type; |
c07a80fd |
260 | duplicity: |
261 | dodup = 1; |
262 | name++; |
263 | if (*name == '=') { |
264 | dodup = 0; |
a0d0e21e |
265 | name++; |
c07a80fd |
266 | } |
267 | if (!*name && supplied_fp) |
268 | fp = supplied_fp; |
a0d0e21e |
269 | else { |
c07a80fd |
270 | /*SUPPRESS 530*/ |
271 | for (; isSPACE(*name); name++) ; |
272 | if (isDIGIT(*name)) |
273 | fd = atoi(name); |
274 | else { |
275 | IO* thatio; |
276 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); |
277 | thatio = GvIO(gv); |
278 | if (!thatio) { |
6e21c824 |
279 | #ifdef EINVAL |
c07a80fd |
280 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 |
281 | #endif |
c07a80fd |
282 | goto say_false; |
283 | } |
284 | if (IoIFP(thatio)) { |
54195c32 |
285 | PerlIO *fp = IoIFP(thatio); |
7211d486 |
286 | /* Flush stdio buffer before dup. --mjd |
287 | * Unfortunately SEEK_CURing 0 seems to |
288 | * be optimized away on most platforms; |
289 | * only Solaris and Linux seem to flush |
290 | * on that. --jhi */ |
54195c32 |
291 | PerlIO_seek(fp, 0, SEEK_CUR); |
7211d486 |
292 | /* On the other hand, do all platforms |
293 | * take gracefully to flushing a read-only |
294 | * filehandle? Perhaps we should do |
295 | * fsetpos(src)+fgetpos(dst)? --nik */ |
296 | PerlIO_flush(fp); |
54195c32 |
297 | fd = PerlIO_fileno(fp); |
c07a80fd |
298 | if (IoTYPE(thatio) == 's') |
299 | IoTYPE(io) = 's'; |
300 | } |
301 | else |
302 | fd = -1; |
a0d0e21e |
303 | } |
fec02dd3 |
304 | if (dodup) |
3028581b |
305 | fd = PerlLIO_dup(fd); |
3500f679 |
306 | else |
307 | was_fdopen = TRUE; |
760ac839 |
308 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd |
309 | if (dodup) |
3028581b |
310 | PerlLIO_close(fd); |
517844ec |
311 | } |
c07a80fd |
312 | } |
bf38876a |
313 | } |
c07a80fd |
314 | else { |
315 | /*SUPPRESS 530*/ |
6170680b |
316 | for (; isSPACE(*type); type++) ; |
317 | if (strEQ(type,"-")) { |
760ac839 |
318 | fp = PerlIO_stdout(); |
c07a80fd |
319 | IoTYPE(io) = '-'; |
320 | } |
321 | else { |
6170680b |
322 | fp = PerlIO_open((num_svs ? name : type), mode); |
c07a80fd |
323 | } |
bf38876a |
324 | } |
325 | } |
6170680b |
326 | else if (*type == '<') { |
327 | if (num_svs && tlen != 1) |
328 | goto unknown_desr; |
c07a80fd |
329 | /*SUPPRESS 530*/ |
6170680b |
330 | for (type++; isSPACE(*type); type++) ; |
bf38876a |
331 | mode[0] = 'r'; |
6170680b |
332 | if (*type == '&') { |
333 | name = type; |
bf38876a |
334 | goto duplicity; |
6170680b |
335 | } |
336 | if (strEQ(type,"-")) { |
760ac839 |
337 | fp = PerlIO_stdin(); |
8990e307 |
338 | IoTYPE(io) = '-'; |
a687059c |
339 | } |
bf38876a |
340 | else |
6170680b |
341 | fp = PerlIO_open((num_svs ? name : type), mode); |
a687059c |
342 | } |
6170680b |
343 | else if (tlen > 1 && type[tlen-1] == '|') { |
344 | if (num_svs) { |
345 | if (tlen != 2 || type[0] != '-') |
346 | goto unknown_desr; |
347 | } |
348 | else { |
349 | type[--tlen] = '\0'; |
350 | while (tlen && isSPACE(type[tlen-1])) |
351 | type[--tlen] = '\0'; |
352 | /*SUPPRESS 530*/ |
353 | for (; isSPACE(*type); type++) ; |
354 | name = type; |
355 | } |
06eaf0bc |
356 | if (*name == '\0') { /* command is missing 19990114 */ |
357 | dTHR; |
358 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
359 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc |
360 | errno = EPIPE; |
361 | goto say_false; |
362 | } |
6170680b |
363 | if (strNE(name,"-") || num_svs) |
79072805 |
364 | TAINT_ENV(); |
365 | TAINT_PROPER("piped open"); |
3028581b |
366 | fp = PerlProc_popen(name,"r"); |
8990e307 |
367 | IoTYPE(io) = '|'; |
a687059c |
368 | } |
369 | else { |
6170680b |
370 | if (num_svs) |
371 | goto unknown_desr; |
372 | name = type; |
8990e307 |
373 | IoTYPE(io) = '<'; |
99b89507 |
374 | /*SUPPRESS 530*/ |
375 | for (; isSPACE(*name); name++) ; |
a687059c |
376 | if (strEQ(name,"-")) { |
760ac839 |
377 | fp = PerlIO_stdin(); |
8990e307 |
378 | IoTYPE(io) = '-'; |
a687059c |
379 | } |
380 | else |
760ac839 |
381 | fp = PerlIO_open(name,"r"); |
a687059c |
382 | } |
383 | } |
bee1dbe2 |
384 | if (!fp) { |
d008e5eb |
385 | dTHR; |
599cee73 |
386 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == '<' && strchr(name, '\n')) |
cea2e8a9 |
387 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); |
6e21c824 |
388 | goto say_false; |
bee1dbe2 |
389 | } |
8990e307 |
390 | if (IoTYPE(io) && |
391 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { |
96827780 |
392 | dTHR; |
3280af22 |
393 | if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { |
760ac839 |
394 | (void)PerlIO_close(fp); |
6e21c824 |
395 | goto say_false; |
a687059c |
396 | } |
3280af22 |
397 | if (S_ISSOCK(PL_statbuf.st_mode)) |
8990e307 |
398 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 |
399 | #ifdef HAS_SOCKET |
400 | else if ( |
c623bd54 |
401 | #ifdef S_IFMT |
3280af22 |
402 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 |
403 | #else |
b28d0864 |
404 | !PL_statbuf.st_mode |
99b89507 |
405 | #endif |
406 | ) { |
96827780 |
407 | char tmpbuf[256]; |
408 | Sock_size_t buflen = sizeof tmpbuf; |
3028581b |
409 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e |
410 | &buflen) >= 0 |
411 | || errno != ENOTSOCK) |
8990e307 |
412 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 |
413 | /* but some return 0 for streams too, sigh */ |
414 | } |
bf38876a |
415 | #endif |
a687059c |
416 | } |
6e21c824 |
417 | if (saveifp) { /* must use old fp? */ |
760ac839 |
418 | fd = PerlIO_fileno(saveifp); |
6e21c824 |
419 | if (saveofp) { |
760ac839 |
420 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 |
421 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 |
422 | PerlIO_close(saveofp); |
99b89507 |
423 | if (fd > 2) |
424 | Safefree(saveofp); |
6e21c824 |
425 | } |
426 | } |
760ac839 |
427 | if (fd != PerlIO_fileno(fp)) { |
d8a83dd3 |
428 | Pid_t pid; |
79072805 |
429 | SV *sv; |
bee1dbe2 |
430 | |
3028581b |
431 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
3280af22 |
432 | sv = *av_fetch(PL_fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e |
433 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
434 | pid = SvIVX(sv); |
435 | SvIVX(sv) = 0; |
3280af22 |
436 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
a0d0e21e |
437 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
438 | SvIVX(sv) = pid; |
3500f679 |
439 | if (!was_fdopen) |
440 | PerlIO_close(fp); |
bee1dbe2 |
441 | |
6e21c824 |
442 | } |
443 | fp = saveifp; |
760ac839 |
444 | PerlIO_clearerr(fp); |
6e21c824 |
445 | } |
a0d0e21e |
446 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
a8710ca1 |
447 | { |
448 | int save_errno = errno; |
449 | fd = PerlIO_fileno(fp); |
450 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ |
451 | errno = save_errno; |
452 | } |
1462b684 |
453 | #endif |
8990e307 |
454 | IoIFP(io) = fp; |
bf38876a |
455 | if (writing) { |
96827780 |
456 | dTHR; |
8990e307 |
457 | if (IoTYPE(io) == 's' |
3280af22 |
458 | || (IoTYPE(io) == '>' && S_ISCHR(PL_statbuf.st_mode)) ) { |
760ac839 |
459 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
460 | PerlIO_close(fp); |
8990e307 |
461 | IoIFP(io) = Nullfp; |
6e21c824 |
462 | goto say_false; |
fe14fcc3 |
463 | } |
1462b684 |
464 | } |
465 | else |
8990e307 |
466 | IoOFP(io) = fp; |
bf38876a |
467 | } |
a687059c |
468 | return TRUE; |
6e21c824 |
469 | |
470 | say_false: |
8990e307 |
471 | IoIFP(io) = saveifp; |
472 | IoOFP(io) = saveofp; |
473 | IoTYPE(io) = savetype; |
6e21c824 |
474 | return FALSE; |
a687059c |
475 | } |
476 | |
760ac839 |
477 | PerlIO * |
864dbfa3 |
478 | Perl_nextargv(pTHX_ register GV *gv) |
a687059c |
479 | { |
79072805 |
480 | register SV *sv; |
99b89507 |
481 | #ifndef FLEXFILENAMES |
c623bd54 |
482 | int filedev; |
483 | int fileino; |
99b89507 |
484 | #endif |
761237fe |
485 | Uid_t fileuid; |
486 | Gid_t filegid; |
18708f5a |
487 | IO *io = GvIOp(gv); |
fe14fcc3 |
488 | |
3280af22 |
489 | if (!PL_argvoutgv) |
490 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
18708f5a |
491 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
492 | IoFLAGS(io) &= ~IOf_START; |
493 | if (PL_inplace) |
494 | av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); |
495 | } |
3280af22 |
496 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
497 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 |
498 | #ifdef HAS_FCHMOD |
3280af22 |
499 | (void)fchmod(PL_lastfd,PL_filemode); |
fe14fcc3 |
500 | #else |
b28d0864 |
501 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 |
502 | #endif |
503 | } |
3280af22 |
504 | PL_filemode = 0; |
79072805 |
505 | while (av_len(GvAV(gv)) >= 0) { |
11343788 |
506 | dTHR; |
85aff577 |
507 | STRLEN oldlen; |
79072805 |
508 | sv = av_shift(GvAV(gv)); |
8990e307 |
509 | SAVEFREESV(sv); |
79072805 |
510 | sv_setsv(GvSV(gv),sv); |
511 | SvSETMAGIC(GvSV(gv)); |
3280af22 |
512 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 |
513 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 |
514 | if (PL_inplace) { |
79072805 |
515 | TAINT_PROPER("inplace open"); |
3280af22 |
516 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 |
517 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e |
518 | return IoIFP(GvIOp(gv)); |
c623bd54 |
519 | } |
99b89507 |
520 | #ifndef FLEXFILENAMES |
b28d0864 |
521 | filedev = PL_statbuf.st_dev; |
522 | fileino = PL_statbuf.st_ino; |
99b89507 |
523 | #endif |
3280af22 |
524 | PL_filemode = PL_statbuf.st_mode; |
525 | fileuid = PL_statbuf.st_uid; |
526 | filegid = PL_statbuf.st_gid; |
527 | if (!S_ISREG(PL_filemode)) { |
0453d815 |
528 | if (ckWARN_d(WARN_INPLACE)) |
529 | Perl_warner(aTHX_ WARN_INPLACE, |
530 | "Can't do inplace edit: %s is not a regular file", |
531 | PL_oldname ); |
79072805 |
532 | do_close(gv,FALSE); |
c623bd54 |
533 | continue; |
534 | } |
3280af22 |
535 | if (*PL_inplace) { |
536 | char *star = strchr(PL_inplace, '*'); |
2d259d92 |
537 | if (star) { |
3280af22 |
538 | char *begin = PL_inplace; |
2d259d92 |
539 | sv_setpvn(sv, "", 0); |
540 | do { |
541 | sv_catpvn(sv, begin, star - begin); |
3280af22 |
542 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 |
543 | begin = ++star; |
544 | } while ((star = strchr(begin, '*'))); |
3d66d7bb |
545 | if (*begin) |
546 | sv_catpv(sv,begin); |
2d259d92 |
547 | } |
548 | else { |
3280af22 |
549 | sv_catpv(sv,PL_inplace); |
2d259d92 |
550 | } |
c623bd54 |
551 | #ifndef FLEXFILENAMES |
b28d0864 |
552 | if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
553 | && PL_statbuf.st_dev == filedev |
554 | && PL_statbuf.st_ino == fileino |
39e571d4 |
555 | #ifdef DJGPP |
556 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 |
557 | #endif |
f248d071 |
558 | ) |
559 | { |
560 | if (ckWARN_d(WARN_INPLACE)) |
561 | Perl_warner(aTHX_ WARN_INPLACE, |
562 | "Can't do inplace edit: %s would not be unique", |
563 | SvPVX(sv)); |
79072805 |
564 | do_close(gv,FALSE); |
c623bd54 |
565 | continue; |
566 | } |
567 | #endif |
fe14fcc3 |
568 | #ifdef HAS_RENAME |
2c2d71f5 |
569 | #if !defined(DOSISH) && !defined(CYGWIN) |
3280af22 |
570 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 |
571 | if (ckWARN_d(WARN_INPLACE)) |
572 | Perl_warner(aTHX_ WARN_INPLACE, |
573 | "Can't rename %s to %s: %s, skipping file", |
574 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
575 | do_close(gv,FALSE); |
c623bd54 |
576 | continue; |
577 | } |
a687059c |
578 | #else |
79072805 |
579 | do_close(gv,FALSE); |
3028581b |
580 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 |
581 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 |
582 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff |
583 | #endif /* DOSISH */ |
ff8e2863 |
584 | #else |
463ee0b2 |
585 | (void)UNLINK(SvPVX(sv)); |
b28d0864 |
586 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 |
587 | if (ckWARN_d(WARN_INPLACE)) |
588 | Perl_warner(aTHX_ WARN_INPLACE, |
589 | "Can't rename %s to %s: %s, skipping file", |
590 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
591 | do_close(gv,FALSE); |
c623bd54 |
592 | continue; |
593 | } |
b28d0864 |
594 | (void)UNLINK(PL_oldname); |
a687059c |
595 | #endif |
596 | } |
597 | else { |
a8c18271 |
598 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 |
599 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 |
600 | if (UNLINK(PL_oldname) < 0) { |
0453d815 |
601 | if (ckWARN_d(WARN_INPLACE)) |
602 | Perl_warner(aTHX_ WARN_INPLACE, |
603 | "Can't remove %s: %s, skipping file", |
604 | PL_oldname, Strerror(errno) ); |
79072805 |
605 | do_close(gv,FALSE); |
fe14fcc3 |
606 | continue; |
607 | } |
edc7bc49 |
608 | # endif |
ff8e2863 |
609 | #else |
cea2e8a9 |
610 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 |
611 | #endif |
a687059c |
612 | } |
613 | |
3280af22 |
614 | sv_setpvn(sv,">",!PL_inplace); |
615 | sv_catpvn(sv,PL_oldname,oldlen); |
748a9306 |
616 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 |
617 | #ifdef VMS |
618 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a |
619 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) |
4119ab01 |
620 | #else |
3280af22 |
621 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a |
622 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) |
4119ab01 |
623 | #endif |
18708f5a |
624 | { |
0453d815 |
625 | if (ckWARN_d(WARN_INPLACE)) |
626 | Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", |
627 | PL_oldname, Strerror(errno) ); |
79072805 |
628 | do_close(gv,FALSE); |
fe14fcc3 |
629 | continue; |
630 | } |
3280af22 |
631 | setdefout(PL_argvoutgv); |
632 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); |
633 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); |
fe14fcc3 |
634 | #ifdef HAS_FCHMOD |
3280af22 |
635 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c |
636 | #else |
3e3baf6d |
637 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
638 | /* Borland runtime creates a readonly file! */ |
b28d0864 |
639 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d |
640 | # endif |
a687059c |
641 | #endif |
3280af22 |
642 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 |
643 | #ifdef HAS_FCHOWN |
3280af22 |
644 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c |
645 | #else |
fe14fcc3 |
646 | #ifdef HAS_CHOWN |
b28d0864 |
647 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c |
648 | #endif |
b1248f16 |
649 | #endif |
fe14fcc3 |
650 | } |
a687059c |
651 | } |
a0d0e21e |
652 | return IoIFP(GvIOp(gv)); |
a687059c |
653 | } |
4d61ec05 |
654 | else { |
655 | dTHR; |
656 | if (ckWARN_d(WARN_INPLACE)) { |
657 | if (!S_ISREG(PL_statbuf.st_mode)) |
658 | Perl_warner(aTHX_ WARN_INPLACE, |
659 | "Can't do inplace edit: %s is not a regular file", |
660 | PL_oldname ); |
661 | else |
662 | Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s\n", |
663 | PL_oldname, Strerror(errno)); |
664 | } |
665 | } |
a687059c |
666 | } |
18708f5a |
667 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
668 | IoFLAGS(io) |= IOf_START; |
3280af22 |
669 | if (PL_inplace) { |
670 | (void)do_close(PL_argvoutgv,FALSE); |
18708f5a |
671 | if (io && (IoFLAGS(io) & IOf_ARGV) && AvFILLp(PL_argvout_stack) >= 0) { |
672 | GV *oldout = (GV*)av_pop(PL_argvout_stack); |
673 | setdefout(oldout); |
674 | SvREFCNT_dec(oldout); |
675 | return Nullfp; |
676 | } |
4633a7c4 |
677 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c |
678 | } |
679 | return Nullfp; |
680 | } |
681 | |
fe14fcc3 |
682 | #ifdef HAS_PIPE |
afd9f252 |
683 | void |
864dbfa3 |
684 | Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) |
afd9f252 |
685 | { |
79072805 |
686 | register IO *rstio; |
687 | register IO *wstio; |
afd9f252 |
688 | int fd[2]; |
689 | |
79072805 |
690 | if (!rgv) |
afd9f252 |
691 | goto badexit; |
79072805 |
692 | if (!wgv) |
afd9f252 |
693 | goto badexit; |
694 | |
a0d0e21e |
695 | rstio = GvIOn(rgv); |
696 | wstio = GvIOn(wgv); |
afd9f252 |
697 | |
a0d0e21e |
698 | if (IoIFP(rstio)) |
79072805 |
699 | do_close(rgv,FALSE); |
a0d0e21e |
700 | if (IoIFP(wstio)) |
79072805 |
701 | do_close(wgv,FALSE); |
afd9f252 |
702 | |
3028581b |
703 | if (PerlProc_pipe(fd) < 0) |
afd9f252 |
704 | goto badexit; |
760ac839 |
705 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
706 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); |
8990e307 |
707 | IoIFP(wstio) = IoOFP(wstio); |
708 | IoTYPE(rstio) = '<'; |
709 | IoTYPE(wstio) = '>'; |
710 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 |
711 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b |
712 | else PerlLIO_close(fd[0]); |
760ac839 |
713 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b |
714 | else PerlLIO_close(fd[1]); |
fe14fcc3 |
715 | goto badexit; |
716 | } |
afd9f252 |
717 | |
3280af22 |
718 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 |
719 | return; |
720 | |
721 | badexit: |
3280af22 |
722 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 |
723 | return; |
724 | } |
b1248f16 |
725 | #endif |
afd9f252 |
726 | |
517844ec |
727 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c |
728 | bool |
864dbfa3 |
729 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c |
730 | { |
1193dd27 |
731 | bool retval; |
732 | IO *io; |
a687059c |
733 | |
79072805 |
734 | if (!gv) |
3280af22 |
735 | gv = PL_argvgv; |
a0d0e21e |
736 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 |
737 | if (not_implicit) |
738 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 |
739 | return FALSE; |
99b89507 |
740 | } |
79072805 |
741 | io = GvIO(gv); |
742 | if (!io) { /* never opened */ |
1d2dff63 |
743 | if (not_implicit) { |
d008e5eb |
744 | dTHR; |
599cee73 |
745 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
746 | Perl_warner(aTHX_ WARN_UNOPENED, |
599cee73 |
747 | "Close on unopened file <%s>",GvENAME(gv)); |
1d2dff63 |
748 | SETERRNO(EBADF,SS$_IVCHAN); |
749 | } |
a687059c |
750 | return FALSE; |
751 | } |
f2b5be74 |
752 | retval = io_close(io, not_implicit); |
517844ec |
753 | if (not_implicit) { |
1193dd27 |
754 | IoLINES(io) = 0; |
755 | IoPAGE(io) = 0; |
756 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
757 | } |
758 | IoTYPE(io) = ' '; |
759 | return retval; |
760 | } |
761 | |
762 | bool |
f2b5be74 |
763 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 |
764 | { |
765 | bool retval = FALSE; |
766 | int status; |
767 | |
8990e307 |
768 | if (IoIFP(io)) { |
769 | if (IoTYPE(io) == '|') { |
3028581b |
770 | status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 |
771 | if (not_implicit) { |
772 | STATUS_NATIVE_SET(status); |
773 | retval = (STATUS_POSIX == 0); |
774 | } |
775 | else { |
776 | retval = (status != -1); |
777 | } |
a687059c |
778 | } |
8990e307 |
779 | else if (IoTYPE(io) == '-') |
a687059c |
780 | retval = TRUE; |
781 | else { |
8990e307 |
782 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 |
783 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
784 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
785 | } |
786 | else |
760ac839 |
787 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c |
788 | } |
8990e307 |
789 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 |
790 | } |
f2b5be74 |
791 | else if (not_implicit) { |
20408e3c |
792 | SETERRNO(EBADF,SS$_IVCHAN); |
793 | } |
1193dd27 |
794 | |
a687059c |
795 | return retval; |
796 | } |
797 | |
798 | bool |
864dbfa3 |
799 | Perl_do_eof(pTHX_ GV *gv) |
a687059c |
800 | { |
11343788 |
801 | dTHR; |
79072805 |
802 | register IO *io; |
a687059c |
803 | int ch; |
804 | |
79072805 |
805 | io = GvIO(gv); |
a687059c |
806 | |
79072805 |
807 | if (!io) |
a687059c |
808 | return TRUE; |
af8c498a |
809 | else if (ckWARN(WARN_IO) |
810 | && (IoTYPE(io) == '>' || IoIFP(io) == PerlIO_stdout() |
811 | || IoIFP(io) == PerlIO_stderr())) |
812 | { |
813 | SV* sv = sv_newmortal(); |
814 | gv_efullname3(sv, gv, Nullch); |
815 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
816 | SvPV_nolen(sv)); |
817 | } |
a687059c |
818 | |
8990e307 |
819 | while (IoIFP(io)) { |
a687059c |
820 | |
760ac839 |
821 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 |
822 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 |
823 | return FALSE; /* this is the most usual case */ |
824 | } |
a687059c |
825 | |
760ac839 |
826 | ch = PerlIO_getc(IoIFP(io)); |
a687059c |
827 | if (ch != EOF) { |
760ac839 |
828 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c |
829 | return FALSE; |
830 | } |
760ac839 |
831 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 |
832 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
833 | PerlIO_set_cnt(IoIFP(io),-1); |
760ac839 |
834 | } |
533c011a |
835 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
3280af22 |
836 | if (!nextargv(PL_argvgv)) /* get another fp handy */ |
a687059c |
837 | return TRUE; |
838 | } |
839 | else |
840 | return TRUE; /* normal fp, definitely end of file */ |
841 | } |
842 | return TRUE; |
843 | } |
844 | |
5ff3f7a4 |
845 | Off_t |
864dbfa3 |
846 | Perl_do_tell(pTHX_ GV *gv) |
a687059c |
847 | { |
79072805 |
848 | register IO *io; |
96e4d5b1 |
849 | register PerlIO *fp; |
a687059c |
850 | |
96e4d5b1 |
851 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
852 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 |
853 | if (PerlIO_eof(fp)) |
854 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
855 | #endif |
8903cb82 |
856 | return PerlIO_tell(fp); |
96e4d5b1 |
857 | } |
d008e5eb |
858 | { |
859 | dTHR; |
860 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
861 | Perl_warner(aTHX_ WARN_UNOPENED, "tell() on unopened file"); |
d008e5eb |
862 | } |
748a9306 |
863 | SETERRNO(EBADF,RMS$_IFI); |
5ff3f7a4 |
864 | return (Off_t)-1; |
a687059c |
865 | } |
866 | |
867 | bool |
864dbfa3 |
868 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c |
869 | { |
79072805 |
870 | register IO *io; |
137443ea |
871 | register PerlIO *fp; |
a687059c |
872 | |
137443ea |
873 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
874 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea |
875 | if (PerlIO_eof(fp)) |
876 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
877 | #endif |
8903cb82 |
878 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea |
879 | } |
d008e5eb |
880 | { |
881 | dTHR; |
882 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
883 | Perl_warner(aTHX_ WARN_UNOPENED, "seek() on unopened file"); |
d008e5eb |
884 | } |
748a9306 |
885 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
886 | return FALSE; |
887 | } |
888 | |
97cc44eb |
889 | Off_t |
864dbfa3 |
890 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 |
891 | { |
892 | register IO *io; |
893 | register PerlIO *fp; |
894 | |
895 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) |
3028581b |
896 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
d008e5eb |
897 | { |
898 | dTHR; |
899 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
900 | Perl_warner(aTHX_ WARN_UNOPENED, "sysseek() on unopened file"); |
d008e5eb |
901 | } |
8903cb82 |
902 | SETERRNO(EBADF,RMS$_IFI); |
d9b3e12d |
903 | return (Off_t)-1; |
8903cb82 |
904 | } |
905 | |
6ff81951 |
906 | int |
864dbfa3 |
907 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int flag) |
6ff81951 |
908 | { |
909 | if (flag != TRUE) |
cea2e8a9 |
910 | Perl_croak(aTHX_ "panic: unsetting binmode"); /* Not implemented yet */ |
6ff81951 |
911 | #ifdef DOSISH |
61ae2fbf |
912 | #if defined(atarist) || defined(__MINT__) |
6ff81951 |
913 | if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN)) |
914 | return 1; |
915 | else |
916 | return 0; |
917 | #else |
918 | if (PerlLIO_setmode(PerlIO_fileno(fp), OP_BINARY) != -1) { |
919 | #if defined(WIN32) && defined(__BORLANDC__) |
920 | /* The translation mode of the stream is maintained independent |
921 | * of the translation mode of the fd in the Borland RTL (heavy |
922 | * digging through their runtime sources reveal). User has to |
923 | * set the mode explicitly for the stream (though they don't |
924 | * document this anywhere). GSAR 97-5-24 |
925 | */ |
926 | PerlIO_seek(fp,0L,0); |
873ef191 |
927 | ((FILE*)fp)->flags |= _F_BIN; |
6ff81951 |
928 | #endif |
929 | return 1; |
930 | } |
931 | else |
932 | return 0; |
933 | #endif |
934 | #else |
935 | #if defined(USEMYBINMODE) |
1cab015a |
936 | if (my_binmode(fp,iotype) != FALSE) |
6ff81951 |
937 | return 1; |
938 | else |
939 | return 0; |
940 | #else |
941 | return 1; |
942 | #endif |
943 | #endif |
944 | } |
945 | |
a0d0e21e |
946 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 |
947 | /* code courtesy of William Kucharski */ |
fe14fcc3 |
948 | #define HAS_CHSIZE |
6eb13c3b |
949 | |
517844ec |
950 | I32 my_chsize(fd, length) |
79072805 |
951 | I32 fd; /* file descriptor */ |
85e6fe83 |
952 | Off_t length; /* length to set file to */ |
6eb13c3b |
953 | { |
6eb13c3b |
954 | struct flock fl; |
955 | struct stat filebuf; |
956 | |
3028581b |
957 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b |
958 | return -1; |
959 | |
960 | if (filebuf.st_size < length) { |
961 | |
962 | /* extend file length */ |
963 | |
3028581b |
964 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b |
965 | return -1; |
966 | |
967 | /* write a "0" byte */ |
968 | |
3028581b |
969 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b |
970 | return -1; |
971 | } |
972 | else { |
973 | /* truncate length */ |
974 | |
975 | fl.l_whence = 0; |
976 | fl.l_len = 0; |
977 | fl.l_start = length; |
a0d0e21e |
978 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b |
979 | |
980 | /* |
a0d0e21e |
981 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b |
982 | * fcntl(2), which truncates the file so that it ends at the |
983 | * position indicated by fl.l_start. |
984 | * |
985 | * Will minor miracles never cease? |
986 | */ |
987 | |
a0d0e21e |
988 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b |
989 | return -1; |
990 | |
991 | } |
992 | |
993 | return 0; |
994 | } |
a0d0e21e |
995 | #endif /* F_FREESP */ |
ff8e2863 |
996 | |
a687059c |
997 | bool |
864dbfa3 |
998 | Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) |
a687059c |
999 | { |
1000 | register char *tmps; |
463ee0b2 |
1001 | STRLEN len; |
a687059c |
1002 | |
79072805 |
1003 | /* assuming fp is checked earlier */ |
1004 | if (!sv) |
1005 | return TRUE; |
3280af22 |
1006 | if (PL_ofmt) { |
8990e307 |
1007 | if (SvGMAGICAL(sv)) |
79072805 |
1008 | mg_get(sv); |
463ee0b2 |
1009 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
65202027 |
1010 | PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); |
760ac839 |
1011 | return !PerlIO_error(fp); |
79072805 |
1012 | } |
463ee0b2 |
1013 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 |
1014 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 |
1015 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 |
1016 | return !PerlIO_error(fp); |
79072805 |
1017 | } |
a687059c |
1018 | } |
79072805 |
1019 | switch (SvTYPE(sv)) { |
1020 | case SVt_NULL: |
d008e5eb |
1021 | { |
1022 | dTHR; |
1023 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 |
1024 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb |
1025 | } |
ff8e2863 |
1026 | return TRUE; |
79072805 |
1027 | case SVt_IV: |
a0d0e21e |
1028 | if (SvIOK(sv)) { |
1029 | if (SvGMAGICAL(sv)) |
1030 | mg_get(sv); |
cf2093f6 |
1031 | if (SvIsUV(sv)) |
57def98f |
1032 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 |
1033 | else |
57def98f |
1034 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); |
760ac839 |
1035 | return !PerlIO_error(fp); |
a0d0e21e |
1036 | } |
1037 | /* FALL THROUGH */ |
79072805 |
1038 | default: |
463ee0b2 |
1039 | tmps = SvPV(sv, len); |
79072805 |
1040 | break; |
ff8e2863 |
1041 | } |
94e4c244 |
1042 | /* To detect whether the process is about to overstep its |
1043 | * filesize limit we would need getrlimit(). We could then |
1044 | * also transparently raise the limit with setrlimit() -- |
1045 | * but only until the system hard limit/the filesystem limit, |
c5dd3cdd |
1046 | * at which we would get EPERM. Note that when using buffered |
1047 | * io the write failure can be delayed until the flush/close. --jhi */ |
760ac839 |
1048 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c |
1049 | return FALSE; |
760ac839 |
1050 | return !PerlIO_error(fp); |
a687059c |
1051 | } |
1052 | |
79072805 |
1053 | I32 |
cea2e8a9 |
1054 | Perl_my_stat(pTHX) |
a687059c |
1055 | { |
4e35701f |
1056 | djSP; |
79072805 |
1057 | IO *io; |
748a9306 |
1058 | GV* tmpgv; |
79072805 |
1059 | |
533c011a |
1060 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
1061 | EXTEND(SP,1); |
7934575e |
1062 | tmpgv = (GV*)cSVOP->op_sv; |
748a9306 |
1063 | do_fstat: |
1064 | io = GvIO(tmpgv); |
8990e307 |
1065 | if (io && IoIFP(io)) { |
3280af22 |
1066 | PL_statgv = tmpgv; |
1067 | sv_setpv(PL_statname,""); |
1068 | PL_laststype = OP_STAT; |
1069 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); |
a687059c |
1070 | } |
1071 | else { |
3280af22 |
1072 | if (tmpgv == PL_defgv) |
1073 | return PL_laststatval; |
599cee73 |
1074 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
1075 | Perl_warner(aTHX_ WARN_UNOPENED, "Stat on unopened file <%s>", |
748a9306 |
1076 | GvENAME(tmpgv)); |
3280af22 |
1077 | PL_statgv = Nullgv; |
1078 | sv_setpv(PL_statname,""); |
1079 | return (PL_laststatval = -1); |
a687059c |
1080 | } |
1081 | } |
1082 | else { |
748a9306 |
1083 | SV* sv = POPs; |
4b74e3fb |
1084 | char *s; |
2d8e6c8d |
1085 | STRLEN n_a; |
79072805 |
1086 | PUTBACK; |
748a9306 |
1087 | if (SvTYPE(sv) == SVt_PVGV) { |
1088 | tmpgv = (GV*)sv; |
1089 | goto do_fstat; |
1090 | } |
1091 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { |
1092 | tmpgv = (GV*)SvRV(sv); |
1093 | goto do_fstat; |
1094 | } |
1095 | |
2d8e6c8d |
1096 | s = SvPV(sv, n_a); |
3280af22 |
1097 | PL_statgv = Nullgv; |
1098 | sv_setpv(PL_statname, s); |
1099 | PL_laststype = OP_STAT; |
1100 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); |
599cee73 |
1101 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
cea2e8a9 |
1102 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat"); |
3280af22 |
1103 | return PL_laststatval; |
a687059c |
1104 | } |
1105 | } |
1106 | |
79072805 |
1107 | I32 |
cea2e8a9 |
1108 | Perl_my_lstat(pTHX) |
c623bd54 |
1109 | { |
4e35701f |
1110 | djSP; |
79072805 |
1111 | SV *sv; |
2d8e6c8d |
1112 | STRLEN n_a; |
533c011a |
1113 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
1114 | EXTEND(SP,1); |
7934575e |
1115 | if ((GV*)cSVOP->op_sv == PL_defgv) { |
3280af22 |
1116 | if (PL_laststype != OP_LSTAT) |
cea2e8a9 |
1117 | Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); |
3280af22 |
1118 | return PL_laststatval; |
fe14fcc3 |
1119 | } |
cea2e8a9 |
1120 | Perl_croak(aTHX_ "You can't use -l on a filehandle"); |
fe14fcc3 |
1121 | } |
c623bd54 |
1122 | |
3280af22 |
1123 | PL_laststype = OP_LSTAT; |
1124 | PL_statgv = Nullgv; |
79072805 |
1125 | sv = POPs; |
1126 | PUTBACK; |
2d8e6c8d |
1127 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
2d8e6c8d |
1128 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
2d8e6c8d |
1129 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
cea2e8a9 |
1130 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat"); |
3280af22 |
1131 | return PL_laststatval; |
c623bd54 |
1132 | } |
1133 | |
a687059c |
1134 | bool |
864dbfa3 |
1135 | Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) |
a687059c |
1136 | { |
d5a9bfb0 |
1137 | return do_aexec5(really, mark, sp, 0, 0); |
1138 | } |
1139 | |
1140 | bool |
2aa1486d |
1141 | Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, |
1142 | int fd, int do_report) |
d5a9bfb0 |
1143 | { |
cd39f2b6 |
1144 | #ifdef MACOS_TRADITIONAL |
1145 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); |
1146 | #else |
a687059c |
1147 | register char **a; |
a687059c |
1148 | char *tmps; |
2d8e6c8d |
1149 | STRLEN n_a; |
a687059c |
1150 | |
79072805 |
1151 | if (sp > mark) { |
11343788 |
1152 | dTHR; |
3280af22 |
1153 | New(401,PL_Argv, sp - mark + 1, char*); |
1154 | a = PL_Argv; |
79072805 |
1155 | while (++mark <= sp) { |
1156 | if (*mark) |
2d8e6c8d |
1157 | *a++ = SvPVx(*mark, n_a); |
a687059c |
1158 | else |
1159 | *a++ = ""; |
1160 | } |
1161 | *a = Nullch; |
3280af22 |
1162 | if (*PL_Argv[0] != '/') /* will execvp use PATH? */ |
79072805 |
1163 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
2d8e6c8d |
1164 | if (really && *(tmps = SvPV(really, n_a))) |
3280af22 |
1165 | PerlProc_execvp(tmps,PL_Argv); |
a687059c |
1166 | else |
3280af22 |
1167 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
599cee73 |
1168 | if (ckWARN(WARN_EXEC)) |
cea2e8a9 |
1169 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
599cee73 |
1170 | PL_Argv[0], Strerror(errno)); |
d5a9bfb0 |
1171 | if (do_report) { |
1172 | int e = errno; |
1173 | |
1174 | PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1175 | PerlLIO_close(fd); |
1176 | } |
a687059c |
1177 | } |
bee1dbe2 |
1178 | do_execfree(); |
cd39f2b6 |
1179 | #endif |
a687059c |
1180 | return FALSE; |
1181 | } |
1182 | |
fe14fcc3 |
1183 | void |
864dbfa3 |
1184 | Perl_do_execfree(pTHX) |
ff8e2863 |
1185 | { |
3280af22 |
1186 | if (PL_Argv) { |
1187 | Safefree(PL_Argv); |
1188 | PL_Argv = Null(char **); |
ff8e2863 |
1189 | } |
3280af22 |
1190 | if (PL_Cmd) { |
1191 | Safefree(PL_Cmd); |
1192 | PL_Cmd = Nullch; |
ff8e2863 |
1193 | } |
1194 | } |
1195 | |
cd39f2b6 |
1196 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
760ac839 |
1197 | |
a687059c |
1198 | bool |
864dbfa3 |
1199 | Perl_do_exec(pTHX_ char *cmd) |
a687059c |
1200 | { |
e446cec8 |
1201 | return do_exec3(cmd,0,0); |
1202 | } |
1203 | |
1204 | bool |
864dbfa3 |
1205 | Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) |
e446cec8 |
1206 | { |
a687059c |
1207 | register char **a; |
1208 | register char *s; |
a687059c |
1209 | char flags[10]; |
1210 | |
748a9306 |
1211 | while (*cmd && isSPACE(*cmd)) |
1212 | cmd++; |
1213 | |
a687059c |
1214 | /* save an extra exec if possible */ |
1215 | |
bf38876a |
1216 | #ifdef CSH |
3280af22 |
1217 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { |
a687059c |
1218 | strcpy(flags,"-c"); |
3280af22 |
1219 | s = cmd+PL_cshlen+3; |
a687059c |
1220 | if (*s == 'f') { |
1221 | s++; |
1222 | strcat(flags,"f"); |
1223 | } |
1224 | if (*s == ' ') |
1225 | s++; |
1226 | if (*s++ == '\'') { |
1227 | char *ncmd = s; |
1228 | |
1229 | while (*s) |
1230 | s++; |
1231 | if (s[-1] == '\n') |
1232 | *--s = '\0'; |
1233 | if (s[-1] == '\'') { |
1234 | *--s = '\0'; |
3280af22 |
1235 | PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
1236 | *s = '\''; |
1237 | return FALSE; |
1238 | } |
1239 | } |
1240 | } |
bf38876a |
1241 | #endif /* CSH */ |
a687059c |
1242 | |
1243 | /* see if there are shell metacharacters in it */ |
1244 | |
748a9306 |
1245 | if (*cmd == '.' && isSPACE(cmd[1])) |
1246 | goto doshell; |
1247 | |
1248 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
1249 | goto doshell; |
1250 | |
99b89507 |
1251 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 |
1252 | if (*s == '=') |
1253 | goto doshell; |
748a9306 |
1254 | |
a687059c |
1255 | for (s = cmd; *s; s++) { |
93a17b20 |
1256 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c |
1257 | if (*s == '\n' && !s[1]) { |
1258 | *s = '\0'; |
1259 | break; |
1260 | } |
603a98b0 |
1261 | /* handle the 2>&1 construct at the end */ |
1262 | if (*s == '>' && s[1] == '&' && s[2] == '1' |
1263 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) |
1264 | && (!s[3] || isSPACE(s[3]))) |
1265 | { |
1266 | char *t = s + 3; |
1267 | |
1268 | while (*t && isSPACE(*t)) |
1269 | ++t; |
1270 | if (!*t && (dup2(1,2) != -1)) { |
1271 | s[-2] = '\0'; |
1272 | break; |
1273 | } |
1274 | } |
a687059c |
1275 | doshell: |
3280af22 |
1276 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
a687059c |
1277 | return FALSE; |
1278 | } |
1279 | } |
748a9306 |
1280 | |
3280af22 |
1281 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1282 | PL_Cmd = savepvn(cmd, s-cmd); |
1283 | a = PL_Argv; |
1284 | for (s = PL_Cmd; *s;) { |
99b89507 |
1285 | while (*s && isSPACE(*s)) s++; |
a687059c |
1286 | if (*s) |
1287 | *(a++) = s; |
99b89507 |
1288 | while (*s && !isSPACE(*s)) s++; |
a687059c |
1289 | if (*s) |
1290 | *s++ = '\0'; |
1291 | } |
1292 | *a = Nullch; |
3280af22 |
1293 | if (PL_Argv[0]) { |
1294 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
b1248f16 |
1295 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1296 | do_execfree(); |
a687059c |
1297 | goto doshell; |
b1248f16 |
1298 | } |
d008e5eb |
1299 | { |
1300 | dTHR; |
e446cec8 |
1301 | int e = errno; |
1302 | |
d008e5eb |
1303 | if (ckWARN(WARN_EXEC)) |
cea2e8a9 |
1304 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
d008e5eb |
1305 | PL_Argv[0], Strerror(errno)); |
e446cec8 |
1306 | if (do_report) { |
1307 | PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1308 | PerlLIO_close(fd); |
1309 | } |
d008e5eb |
1310 | } |
a687059c |
1311 | } |
ff8e2863 |
1312 | do_execfree(); |
a687059c |
1313 | return FALSE; |
1314 | } |
1315 | |
6890e559 |
1316 | #endif /* OS2 || WIN32 */ |
760ac839 |
1317 | |
79072805 |
1318 | I32 |
864dbfa3 |
1319 | Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) |
a687059c |
1320 | { |
11343788 |
1321 | dTHR; |
79072805 |
1322 | register I32 val; |
1323 | register I32 val2; |
1324 | register I32 tot = 0; |
20408e3c |
1325 | char *what; |
a687059c |
1326 | char *s; |
79072805 |
1327 | SV **oldmark = mark; |
2d8e6c8d |
1328 | STRLEN n_a; |
a687059c |
1329 | |
20408e3c |
1330 | #define APPLY_TAINT_PROPER() \ |
3280af22 |
1331 | STMT_START { \ |
17406bd6 |
1332 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 |
1333 | } STMT_END |
20408e3c |
1334 | |
1335 | /* This is a first heuristic; it doesn't catch tainting magic. */ |
3280af22 |
1336 | if (PL_tainting) { |
463ee0b2 |
1337 | while (++mark <= sp) { |
bbce6d69 |
1338 | if (SvTAINTED(*mark)) { |
1339 | TAINT; |
1340 | break; |
1341 | } |
463ee0b2 |
1342 | } |
1343 | mark = oldmark; |
1344 | } |
a687059c |
1345 | switch (type) { |
79072805 |
1346 | case OP_CHMOD: |
20408e3c |
1347 | what = "chmod"; |
1348 | APPLY_TAINT_PROPER(); |
79072805 |
1349 | if (++mark <= sp) { |
463ee0b2 |
1350 | val = SvIVx(*mark); |
20408e3c |
1351 | APPLY_TAINT_PROPER(); |
1352 | tot = sp - mark; |
79072805 |
1353 | while (++mark <= sp) { |
2d8e6c8d |
1354 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1355 | APPLY_TAINT_PROPER(); |
1356 | if (PerlLIO_chmod(name, val)) |
a687059c |
1357 | tot--; |
1358 | } |
1359 | } |
1360 | break; |
fe14fcc3 |
1361 | #ifdef HAS_CHOWN |
79072805 |
1362 | case OP_CHOWN: |
20408e3c |
1363 | what = "chown"; |
1364 | APPLY_TAINT_PROPER(); |
79072805 |
1365 | if (sp - mark > 2) { |
463ee0b2 |
1366 | val = SvIVx(*++mark); |
1367 | val2 = SvIVx(*++mark); |
20408e3c |
1368 | APPLY_TAINT_PROPER(); |
a0d0e21e |
1369 | tot = sp - mark; |
79072805 |
1370 | while (++mark <= sp) { |
2d8e6c8d |
1371 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1372 | APPLY_TAINT_PROPER(); |
36660982 |
1373 | if (PerlLIO_chown(name, val, val2)) |
a687059c |
1374 | tot--; |
1375 | } |
1376 | } |
1377 | break; |
b1248f16 |
1378 | #endif |
dd64f1c3 |
1379 | /* |
1380 | XXX Should we make lchown() directly available from perl? |
1381 | For now, we'll let Configure test for HAS_LCHOWN, but do |
1382 | nothing in the core. |
1383 | --AD 5/1998 |
1384 | */ |
fe14fcc3 |
1385 | #ifdef HAS_KILL |
79072805 |
1386 | case OP_KILL: |
20408e3c |
1387 | what = "kill"; |
1388 | APPLY_TAINT_PROPER(); |
55497cff |
1389 | if (mark == sp) |
1390 | break; |
2d8e6c8d |
1391 | s = SvPVx(*++mark, n_a); |
79072805 |
1392 | if (isUPPER(*s)) { |
1393 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1394 | s += 3; |
1395 | if (!(val = whichsig(s))) |
cea2e8a9 |
1396 | Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); |
79072805 |
1397 | } |
1398 | else |
463ee0b2 |
1399 | val = SvIVx(*mark); |
20408e3c |
1400 | APPLY_TAINT_PROPER(); |
1401 | tot = sp - mark; |
3595fcef |
1402 | #ifdef VMS |
1403 | /* kill() doesn't do process groups (job trees?) under VMS */ |
1404 | if (val < 0) val = -val; |
1405 | if (val == SIGKILL) { |
1406 | # include <starlet.h> |
1407 | /* Use native sys$delprc() to insure that target process is |
1408 | * deleted; supervisor-mode images don't pay attention to |
1409 | * CRTL's emulation of Unix-style signals and kill() |
1410 | */ |
1411 | while (++mark <= sp) { |
1412 | I32 proc = SvIVx(*mark); |
1413 | register unsigned long int __vmssts; |
20408e3c |
1414 | APPLY_TAINT_PROPER(); |
3595fcef |
1415 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1416 | tot--; |
1417 | switch (__vmssts) { |
1418 | case SS$_NONEXPR: |
1419 | case SS$_NOSUCHNODE: |
1420 | SETERRNO(ESRCH,__vmssts); |
1421 | break; |
1422 | case SS$_NOPRIV: |
1423 | SETERRNO(EPERM,__vmssts); |
1424 | break; |
1425 | default: |
1426 | SETERRNO(EVMSERR,__vmssts); |
1427 | } |
1428 | } |
1429 | } |
1430 | break; |
1431 | } |
1432 | #endif |
79072805 |
1433 | if (val < 0) { |
1434 | val = -val; |
1435 | while (++mark <= sp) { |
463ee0b2 |
1436 | I32 proc = SvIVx(*mark); |
20408e3c |
1437 | APPLY_TAINT_PROPER(); |
fe14fcc3 |
1438 | #ifdef HAS_KILLPG |
3028581b |
1439 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c |
1440 | #else |
3028581b |
1441 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c |
1442 | #endif |
79072805 |
1443 | tot--; |
a687059c |
1444 | } |
79072805 |
1445 | } |
1446 | else { |
1447 | while (++mark <= sp) { |
20408e3c |
1448 | I32 proc = SvIVx(*mark); |
1449 | APPLY_TAINT_PROPER(); |
1450 | if (PerlProc_kill(proc, val)) |
79072805 |
1451 | tot--; |
a687059c |
1452 | } |
1453 | } |
1454 | break; |
b1248f16 |
1455 | #endif |
79072805 |
1456 | case OP_UNLINK: |
20408e3c |
1457 | what = "unlink"; |
1458 | APPLY_TAINT_PROPER(); |
79072805 |
1459 | tot = sp - mark; |
1460 | while (++mark <= sp) { |
2d8e6c8d |
1461 | s = SvPVx(*mark, n_a); |
20408e3c |
1462 | APPLY_TAINT_PROPER(); |
3280af22 |
1463 | if (PL_euid || PL_unsafe) { |
a687059c |
1464 | if (UNLINK(s)) |
1465 | tot--; |
1466 | } |
1467 | else { /* don't let root wipe out directories without -U */ |
3280af22 |
1468 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c |
1469 | tot--; |
1470 | else { |
1471 | if (UNLINK(s)) |
1472 | tot--; |
1473 | } |
1474 | } |
1475 | } |
1476 | break; |
a0d0e21e |
1477 | #ifdef HAS_UTIME |
79072805 |
1478 | case OP_UTIME: |
20408e3c |
1479 | what = "utime"; |
1480 | APPLY_TAINT_PROPER(); |
79072805 |
1481 | if (sp - mark > 2) { |
748a9306 |
1482 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 |
1483 | struct utimbuf utbuf; |
1484 | #else |
a687059c |
1485 | struct { |
dd2821f6 |
1486 | Time_t actime; |
1487 | Time_t modtime; |
a687059c |
1488 | } utbuf; |
663a0e37 |
1489 | #endif |
a687059c |
1490 | |
afd9f252 |
1491 | Zero(&utbuf, sizeof utbuf, char); |
517844ec |
1492 | #ifdef BIG_TIME |
dd2821f6 |
1493 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1494 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ |
517844ec |
1495 | #else |
dd2821f6 |
1496 | utbuf.actime = (Time_t)SvIVx(*++mark); /* time accessed */ |
1497 | utbuf.modtime = (Time_t)SvIVx(*++mark); /* time modified */ |
517844ec |
1498 | #endif |
20408e3c |
1499 | APPLY_TAINT_PROPER(); |
79072805 |
1500 | tot = sp - mark; |
1501 | while (++mark <= sp) { |
2d8e6c8d |
1502 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1503 | APPLY_TAINT_PROPER(); |
1504 | if (PerlLIO_utime(name, &utbuf)) |
a687059c |
1505 | tot--; |
1506 | } |
a687059c |
1507 | } |
1508 | else |
79072805 |
1509 | tot = 0; |
a687059c |
1510 | break; |
a0d0e21e |
1511 | #endif |
a687059c |
1512 | } |
1513 | return tot; |
20408e3c |
1514 | |
20408e3c |
1515 | #undef APPLY_TAINT_PROPER |
a687059c |
1516 | } |
1517 | |
1518 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
a0d0e21e |
1519 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae |
1520 | bool |
1521 | Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp) |
1522 | /* Note: we use `effective' both for uids and gids. |
1523 | * Here we are betting on Uid_t being equal or wider than Gid_t. */ |
a687059c |
1524 | { |
bee1dbe2 |
1525 | #ifdef DOSISH |
fe14fcc3 |
1526 | /* [Comments and code from Len Reed] |
1527 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write |
1528 | * to write-protected files. The execute permission bit is set |
1529 | * by the Miscrosoft C library stat() function for the following: |
1530 | * .exe files |
1531 | * .com files |
1532 | * .bat files |
1533 | * directories |
1534 | * All files and directories are readable. |
1535 | * Directories and special files, e.g. "CON", cannot be |
1536 | * write-protected. |
1537 | * [Comment by Tom Dinger -- a directory can have the write-protect |
1538 | * bit set in the file system, but DOS permits changes to |
1539 | * the directory anyway. In addition, all bets are off |
1540 | * here for networked software, such as Novell and |
1541 | * Sun's PC-NFS.] |
1542 | */ |
1543 | |
bee1dbe2 |
1544 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1545 | * too so it will actually look into the files for magic numbers |
1546 | */ |
7f4774ae |
1547 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 |
1548 | |
55497cff |
1549 | #else /* ! DOSISH */ |
3280af22 |
1550 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
7f4774ae |
1551 | if (mode == S_IXUSR) { |
c623bd54 |
1552 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c |
1553 | return TRUE; |
1554 | } |
1555 | else |
1556 | return TRUE; /* root reads and writes anything */ |
1557 | return FALSE; |
1558 | } |
3280af22 |
1559 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
7f4774ae |
1560 | if (statbufp->st_mode & mode) |
a687059c |
1561 | return TRUE; /* ok as "user" */ |
1562 | } |
d8eceb89 |
1563 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae |
1564 | if (statbufp->st_mode & mode >> 3) |
a687059c |
1565 | return TRUE; /* ok as "group" */ |
1566 | } |
7f4774ae |
1567 | else if (statbufp->st_mode & mode >> 6) |
a687059c |
1568 | return TRUE; /* ok as "other" */ |
1569 | return FALSE; |
55497cff |
1570 | #endif /* ! DOSISH */ |
a687059c |
1571 | } |
a0d0e21e |
1572 | #endif /* ! VMS */ |
a687059c |
1573 | |
d8eceb89 |
1574 | bool |
1575 | Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) |
a687059c |
1576 | { |
cd39f2b6 |
1577 | #ifdef MACOS_TRADITIONAL |
1578 | /* This is simply not correct for AppleShare, but fix it yerself. */ |
1579 | return TRUE; |
1580 | #else |
3280af22 |
1581 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c |
1582 | return TRUE; |
fe14fcc3 |
1583 | #ifdef HAS_GETGROUPS |
a687059c |
1584 | #ifndef NGROUPS |
1585 | #define NGROUPS 32 |
1586 | #endif |
1587 | { |
a0d0e21e |
1588 | Groups_t gary[NGROUPS]; |
79072805 |
1589 | I32 anum; |
a687059c |
1590 | |
1591 | anum = getgroups(NGROUPS,gary); |
1592 | while (--anum >= 0) |
1593 | if (gary[anum] == testgid) |
1594 | return TRUE; |
1595 | } |
1596 | #endif |
1597 | return FALSE; |
cd39f2b6 |
1598 | #endif |
a687059c |
1599 | } |
c2ab57d4 |
1600 | |
fe14fcc3 |
1601 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
1602 | |
79072805 |
1603 | I32 |
864dbfa3 |
1604 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1605 | { |
11343788 |
1606 | dTHR; |
c2ab57d4 |
1607 | key_t key; |
79072805 |
1608 | I32 n, flags; |
c2ab57d4 |
1609 | |
463ee0b2 |
1610 | key = (key_t)SvNVx(*++mark); |
1611 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); |
1612 | flags = SvIVx(*++mark); |
748a9306 |
1613 | SETERRNO(0,0); |
c2ab57d4 |
1614 | switch (optype) |
1615 | { |
fe14fcc3 |
1616 | #ifdef HAS_MSG |
79072805 |
1617 | case OP_MSGGET: |
c2ab57d4 |
1618 | return msgget(key, flags); |
e5d73d77 |
1619 | #endif |
fe14fcc3 |
1620 | #ifdef HAS_SEM |
79072805 |
1621 | case OP_SEMGET: |
c2ab57d4 |
1622 | return semget(key, n, flags); |
e5d73d77 |
1623 | #endif |
fe14fcc3 |
1624 | #ifdef HAS_SHM |
79072805 |
1625 | case OP_SHMGET: |
c2ab57d4 |
1626 | return shmget(key, n, flags); |
e5d73d77 |
1627 | #endif |
fe14fcc3 |
1628 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1629 | default: |
cea2e8a9 |
1630 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1631 | #endif |
c2ab57d4 |
1632 | } |
1633 | return -1; /* should never happen */ |
1634 | } |
1635 | |
79072805 |
1636 | I32 |
864dbfa3 |
1637 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1638 | { |
11343788 |
1639 | dTHR; |
79072805 |
1640 | SV *astr; |
c2ab57d4 |
1641 | char *a; |
a0d0e21e |
1642 | I32 id, n, cmd, infosize, getinfo; |
1643 | I32 ret = -1; |
c2ab57d4 |
1644 | |
463ee0b2 |
1645 | id = SvIVx(*++mark); |
1646 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
1647 | cmd = SvIVx(*++mark); |
79072805 |
1648 | astr = *++mark; |
c2ab57d4 |
1649 | infosize = 0; |
1650 | getinfo = (cmd == IPC_STAT); |
1651 | |
1652 | switch (optype) |
1653 | { |
fe14fcc3 |
1654 | #ifdef HAS_MSG |
79072805 |
1655 | case OP_MSGCTL: |
c2ab57d4 |
1656 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1657 | infosize = sizeof(struct msqid_ds); |
1658 | break; |
e5d73d77 |
1659 | #endif |
fe14fcc3 |
1660 | #ifdef HAS_SHM |
79072805 |
1661 | case OP_SHMCTL: |
c2ab57d4 |
1662 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1663 | infosize = sizeof(struct shmid_ds); |
1664 | break; |
e5d73d77 |
1665 | #endif |
fe14fcc3 |
1666 | #ifdef HAS_SEM |
79072805 |
1667 | case OP_SEMCTL: |
39398f3f |
1668 | #ifdef Semctl |
c2ab57d4 |
1669 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1670 | infosize = sizeof(struct semid_ds); |
1671 | else if (cmd == GETALL || cmd == SETALL) |
1672 | { |
8e591e46 |
1673 | struct semid_ds semds; |
bd89102f |
1674 | union semun semun; |
1675 | |
84902520 |
1676 | semun.buf = &semds; |
c2ab57d4 |
1677 | getinfo = (cmd == GETALL); |
9b89d93d |
1678 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1679 | return -1; |
6e21c824 |
1680 | infosize = semds.sem_nsems * sizeof(short); |
1681 | /* "short" is technically wrong but much more portable |
1682 | than guessing about u_?short(_t)? */ |
c2ab57d4 |
1683 | } |
39398f3f |
1684 | #else |
cea2e8a9 |
1685 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f |
1686 | #endif |
c2ab57d4 |
1687 | break; |
e5d73d77 |
1688 | #endif |
fe14fcc3 |
1689 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1690 | default: |
cea2e8a9 |
1691 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1692 | #endif |
c2ab57d4 |
1693 | } |
1694 | |
1695 | if (infosize) |
1696 | { |
a0d0e21e |
1697 | STRLEN len; |
c2ab57d4 |
1698 | if (getinfo) |
1699 | { |
a0d0e21e |
1700 | SvPV_force(astr, len); |
1701 | a = SvGROW(astr, infosize+1); |
c2ab57d4 |
1702 | } |
1703 | else |
1704 | { |
463ee0b2 |
1705 | a = SvPV(astr, len); |
1706 | if (len != infosize) |
cea2e8a9 |
1707 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 |
1708 | PL_op_desc[optype], |
1709 | (unsigned long)len, |
1710 | (long)infosize); |
c2ab57d4 |
1711 | } |
1712 | } |
1713 | else |
1714 | { |
c030ccd9 |
1715 | IV i = SvIV(astr); |
56431972 |
1716 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 |
1717 | } |
748a9306 |
1718 | SETERRNO(0,0); |
c2ab57d4 |
1719 | switch (optype) |
1720 | { |
fe14fcc3 |
1721 | #ifdef HAS_MSG |
79072805 |
1722 | case OP_MSGCTL: |
bee1dbe2 |
1723 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 |
1724 | break; |
e5d73d77 |
1725 | #endif |
fe14fcc3 |
1726 | #ifdef HAS_SEM |
bd89102f |
1727 | case OP_SEMCTL: { |
39398f3f |
1728 | #ifdef Semctl |
bd89102f |
1729 | union semun unsemds; |
1730 | |
1731 | unsemds.buf = (struct semid_ds *)a; |
1732 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f |
1733 | #else |
cea2e8a9 |
1734 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f |
1735 | #endif |
bd89102f |
1736 | } |
c2ab57d4 |
1737 | break; |
e5d73d77 |
1738 | #endif |
fe14fcc3 |
1739 | #ifdef HAS_SHM |
79072805 |
1740 | case OP_SHMCTL: |
bee1dbe2 |
1741 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 |
1742 | break; |
e5d73d77 |
1743 | #endif |
c2ab57d4 |
1744 | } |
1745 | if (getinfo && ret >= 0) { |
79072805 |
1746 | SvCUR_set(astr, infosize); |
1747 | *SvEND(astr) = '\0'; |
a0d0e21e |
1748 | SvSETMAGIC(astr); |
c2ab57d4 |
1749 | } |
1750 | return ret; |
1751 | } |
1752 | |
79072805 |
1753 | I32 |
864dbfa3 |
1754 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1755 | { |
fe14fcc3 |
1756 | #ifdef HAS_MSG |
11343788 |
1757 | dTHR; |
79072805 |
1758 | SV *mstr; |
c2ab57d4 |
1759 | char *mbuf; |
79072805 |
1760 | I32 id, msize, flags; |
463ee0b2 |
1761 | STRLEN len; |
c2ab57d4 |
1762 | |
463ee0b2 |
1763 | id = SvIVx(*++mark); |
79072805 |
1764 | mstr = *++mark; |
463ee0b2 |
1765 | flags = SvIVx(*++mark); |
1766 | mbuf = SvPV(mstr, len); |
1767 | if ((msize = len - sizeof(long)) < 0) |
cea2e8a9 |
1768 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 |
1769 | SETERRNO(0,0); |
bee1dbe2 |
1770 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 |
1771 | #else |
cea2e8a9 |
1772 | Perl_croak(aTHX_ "msgsnd not implemented"); |
e5d73d77 |
1773 | #endif |
c2ab57d4 |
1774 | } |
1775 | |
79072805 |
1776 | I32 |
864dbfa3 |
1777 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1778 | { |
fe14fcc3 |
1779 | #ifdef HAS_MSG |
11343788 |
1780 | dTHR; |
79072805 |
1781 | SV *mstr; |
c2ab57d4 |
1782 | char *mbuf; |
1783 | long mtype; |
79072805 |
1784 | I32 id, msize, flags, ret; |
463ee0b2 |
1785 | STRLEN len; |
79072805 |
1786 | |
463ee0b2 |
1787 | id = SvIVx(*++mark); |
79072805 |
1788 | mstr = *++mark; |
463ee0b2 |
1789 | msize = SvIVx(*++mark); |
1790 | mtype = (long)SvIVx(*++mark); |
1791 | flags = SvIVx(*++mark); |
a0d0e21e |
1792 | SvPV_force(mstr, len); |
1793 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
1794 | |
748a9306 |
1795 | SETERRNO(0,0); |
bee1dbe2 |
1796 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 |
1797 | if (ret >= 0) { |
79072805 |
1798 | SvCUR_set(mstr, sizeof(long)+ret); |
1799 | *SvEND(mstr) = '\0'; |
c2ab57d4 |
1800 | } |
1801 | return ret; |
e5d73d77 |
1802 | #else |
cea2e8a9 |
1803 | Perl_croak(aTHX_ "msgrcv not implemented"); |
e5d73d77 |
1804 | #endif |
c2ab57d4 |
1805 | } |
1806 | |
79072805 |
1807 | I32 |
864dbfa3 |
1808 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1809 | { |
fe14fcc3 |
1810 | #ifdef HAS_SEM |
11343788 |
1811 | dTHR; |
79072805 |
1812 | SV *opstr; |
c2ab57d4 |
1813 | char *opbuf; |
463ee0b2 |
1814 | I32 id; |
1815 | STRLEN opsize; |
c2ab57d4 |
1816 | |
463ee0b2 |
1817 | id = SvIVx(*++mark); |
79072805 |
1818 | opstr = *++mark; |
463ee0b2 |
1819 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 |
1820 | if (opsize < sizeof(struct sembuf) |
1821 | || (opsize % sizeof(struct sembuf)) != 0) { |
748a9306 |
1822 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 |
1823 | return -1; |
1824 | } |
748a9306 |
1825 | SETERRNO(0,0); |
6e21c824 |
1826 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 |
1827 | #else |
cea2e8a9 |
1828 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 |
1829 | #endif |
c2ab57d4 |
1830 | } |
1831 | |
79072805 |
1832 | I32 |
864dbfa3 |
1833 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1834 | { |
fe14fcc3 |
1835 | #ifdef HAS_SHM |
11343788 |
1836 | dTHR; |
79072805 |
1837 | SV *mstr; |
c2ab57d4 |
1838 | char *mbuf, *shm; |
79072805 |
1839 | I32 id, mpos, msize; |
463ee0b2 |
1840 | STRLEN len; |
c2ab57d4 |
1841 | struct shmid_ds shmds; |
c2ab57d4 |
1842 | |
463ee0b2 |
1843 | id = SvIVx(*++mark); |
79072805 |
1844 | mstr = *++mark; |
463ee0b2 |
1845 | mpos = SvIVx(*++mark); |
1846 | msize = SvIVx(*++mark); |
748a9306 |
1847 | SETERRNO(0,0); |
c2ab57d4 |
1848 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1849 | return -1; |
1850 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { |
748a9306 |
1851 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 |
1852 | return -1; |
1853 | } |
8ac85365 |
1854 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 |
1855 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1856 | return -1; |
79072805 |
1857 | if (optype == OP_SHMREAD) { |
a0d0e21e |
1858 | SvPV_force(mstr, len); |
1859 | mbuf = SvGROW(mstr, msize+1); |
1860 | |
bee1dbe2 |
1861 | Copy(shm + mpos, mbuf, msize, char); |
79072805 |
1862 | SvCUR_set(mstr, msize); |
1863 | *SvEND(mstr) = '\0'; |
a0d0e21e |
1864 | SvSETMAGIC(mstr); |
c2ab57d4 |
1865 | } |
1866 | else { |
79072805 |
1867 | I32 n; |
c2ab57d4 |
1868 | |
a0d0e21e |
1869 | mbuf = SvPV(mstr, len); |
463ee0b2 |
1870 | if ((n = len) > msize) |
c2ab57d4 |
1871 | n = msize; |
bee1dbe2 |
1872 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 |
1873 | if (n < msize) |
bee1dbe2 |
1874 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 |
1875 | } |
1876 | return shmdt(shm); |
e5d73d77 |
1877 | #else |
cea2e8a9 |
1878 | Perl_croak(aTHX_ "shm I/O not implemented"); |
e5d73d77 |
1879 | #endif |
c2ab57d4 |
1880 | } |
1881 | |
fe14fcc3 |
1882 | #endif /* SYSV IPC */ |
4e35701f |
1883 | |