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 { |
a52cb5f7 |
171 | 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 { |
faecd977 |
186 | char *type; |
187 | char *oname = name; |
6170680b |
188 | STRLEN tlen; |
faecd977 |
189 | STRLEN olen = len; |
c07a80fd |
190 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
191 | int dodup; |
192 | |
faecd977 |
193 | type = savepvn(name, len); |
194 | tlen = len; |
195 | SAVEFREEPV(type); |
6170680b |
196 | if (num_svs) { |
faecd977 |
197 | STRLEN l; |
198 | name = SvPV(svs, l) ; |
199 | len = (I32)l; |
200 | name = savepvn(name, len); |
201 | SAVEFREEPV(name); |
6170680b |
202 | } |
faecd977 |
203 | else { |
6170680b |
204 | while (tlen && isSPACE(type[tlen-1])) |
205 | type[--tlen] = '\0'; |
faecd977 |
206 | name = type; |
207 | len = tlen; |
208 | } |
c07a80fd |
209 | mode[0] = mode[1] = mode[2] = '\0'; |
6170680b |
210 | IoTYPE(io) = *type; |
211 | if (*type == '+' && tlen > 1 && type[tlen-1] != '|') { /* scary */ |
212 | mode[1] = *type++; |
213 | --tlen; |
c07a80fd |
214 | writing = 1; |
a687059c |
215 | } |
c07a80fd |
216 | |
6170680b |
217 | if (*type == '|') { |
218 | if (num_svs && (tlen != 2 || type[1] != '-')) { |
219 | unknown_desr: |
faecd977 |
220 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", olen, oname); |
6170680b |
221 | } |
c07a80fd |
222 | /*SUPPRESS 530*/ |
faecd977 |
223 | for (type++, tlen--; isSPACE(*type); type++, tlen--) ; |
224 | if (!num_svs) { |
6170680b |
225 | name = type; |
faecd977 |
226 | len = tlen; |
227 | } |
06eaf0bc |
228 | if (*name == '\0') { /* command is missing 19990114 */ |
229 | dTHR; |
230 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
231 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc |
232 | errno = EPIPE; |
233 | goto say_false; |
234 | } |
6170680b |
235 | if (strNE(name,"-") || num_svs) |
c07a80fd |
236 | TAINT_ENV(); |
237 | TAINT_PROPER("piped open"); |
faecd977 |
238 | if (name[len-1] == '|') { |
d008e5eb |
239 | dTHR; |
faecd977 |
240 | name[--len] = '\0' ; |
599cee73 |
241 | if (ckWARN(WARN_PIPE)) |
9a7dcd9c |
242 | Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe"); |
7b8d334a |
243 | } |
3028581b |
244 | fp = PerlProc_popen(name,"w"); |
c07a80fd |
245 | writing = 1; |
246 | } |
6170680b |
247 | else if (*type == '>') { |
c07a80fd |
248 | TAINT_PROPER("open"); |
6170680b |
249 | type++; |
250 | if (*type == '>') { |
c07a80fd |
251 | mode[0] = IoTYPE(io) = 'a'; |
6170680b |
252 | type++; |
253 | tlen--; |
a0d0e21e |
254 | } |
c07a80fd |
255 | else |
256 | mode[0] = 'w'; |
257 | writing = 1; |
258 | |
6170680b |
259 | if (num_svs && tlen != 1) |
260 | goto unknown_desr; |
261 | if (*type == '&') { |
262 | name = type; |
c07a80fd |
263 | duplicity: |
264 | dodup = 1; |
265 | name++; |
266 | if (*name == '=') { |
267 | dodup = 0; |
a0d0e21e |
268 | name++; |
c07a80fd |
269 | } |
270 | if (!*name && supplied_fp) |
271 | fp = supplied_fp; |
a0d0e21e |
272 | else { |
c07a80fd |
273 | /*SUPPRESS 530*/ |
274 | for (; isSPACE(*name); name++) ; |
275 | if (isDIGIT(*name)) |
276 | fd = atoi(name); |
277 | else { |
278 | IO* thatio; |
279 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); |
280 | thatio = GvIO(gv); |
281 | if (!thatio) { |
6e21c824 |
282 | #ifdef EINVAL |
c07a80fd |
283 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 |
284 | #endif |
c07a80fd |
285 | goto say_false; |
286 | } |
287 | if (IoIFP(thatio)) { |
54195c32 |
288 | PerlIO *fp = IoIFP(thatio); |
7211d486 |
289 | /* Flush stdio buffer before dup. --mjd |
290 | * Unfortunately SEEK_CURing 0 seems to |
291 | * be optimized away on most platforms; |
292 | * only Solaris and Linux seem to flush |
293 | * on that. --jhi */ |
54195c32 |
294 | PerlIO_seek(fp, 0, SEEK_CUR); |
7211d486 |
295 | /* On the other hand, do all platforms |
296 | * take gracefully to flushing a read-only |
297 | * filehandle? Perhaps we should do |
298 | * fsetpos(src)+fgetpos(dst)? --nik */ |
299 | PerlIO_flush(fp); |
54195c32 |
300 | fd = PerlIO_fileno(fp); |
c07a80fd |
301 | if (IoTYPE(thatio) == 's') |
302 | IoTYPE(io) = 's'; |
303 | } |
304 | else |
305 | fd = -1; |
a0d0e21e |
306 | } |
fec02dd3 |
307 | if (dodup) |
3028581b |
308 | fd = PerlLIO_dup(fd); |
3500f679 |
309 | else |
310 | was_fdopen = TRUE; |
760ac839 |
311 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd |
312 | if (dodup) |
3028581b |
313 | PerlLIO_close(fd); |
faecd977 |
314 | } |
c07a80fd |
315 | } |
bf38876a |
316 | } |
c07a80fd |
317 | else { |
318 | /*SUPPRESS 530*/ |
6170680b |
319 | for (; isSPACE(*type); type++) ; |
320 | if (strEQ(type,"-")) { |
760ac839 |
321 | fp = PerlIO_stdout(); |
c07a80fd |
322 | IoTYPE(io) = '-'; |
323 | } |
324 | else { |
6170680b |
325 | fp = PerlIO_open((num_svs ? name : type), mode); |
c07a80fd |
326 | } |
bf38876a |
327 | } |
328 | } |
6170680b |
329 | else if (*type == '<') { |
330 | if (num_svs && tlen != 1) |
331 | goto unknown_desr; |
c07a80fd |
332 | /*SUPPRESS 530*/ |
6170680b |
333 | for (type++; isSPACE(*type); type++) ; |
bf38876a |
334 | mode[0] = 'r'; |
6170680b |
335 | if (*type == '&') { |
336 | name = type; |
bf38876a |
337 | goto duplicity; |
6170680b |
338 | } |
339 | if (strEQ(type,"-")) { |
760ac839 |
340 | fp = PerlIO_stdin(); |
8990e307 |
341 | IoTYPE(io) = '-'; |
a687059c |
342 | } |
bf38876a |
343 | else |
6170680b |
344 | fp = PerlIO_open((num_svs ? name : type), mode); |
a687059c |
345 | } |
6170680b |
346 | else if (tlen > 1 && type[tlen-1] == '|') { |
347 | if (num_svs) { |
348 | if (tlen != 2 || type[0] != '-') |
349 | goto unknown_desr; |
350 | } |
351 | else { |
352 | type[--tlen] = '\0'; |
353 | while (tlen && isSPACE(type[tlen-1])) |
354 | type[--tlen] = '\0'; |
355 | /*SUPPRESS 530*/ |
356 | for (; isSPACE(*type); type++) ; |
357 | name = type; |
358 | } |
06eaf0bc |
359 | if (*name == '\0') { /* command is missing 19990114 */ |
360 | dTHR; |
361 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 |
362 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc |
363 | errno = EPIPE; |
364 | goto say_false; |
365 | } |
6170680b |
366 | if (strNE(name,"-") || num_svs) |
79072805 |
367 | TAINT_ENV(); |
368 | TAINT_PROPER("piped open"); |
3028581b |
369 | fp = PerlProc_popen(name,"r"); |
8990e307 |
370 | IoTYPE(io) = '|'; |
a687059c |
371 | } |
372 | else { |
6170680b |
373 | if (num_svs) |
374 | goto unknown_desr; |
375 | name = type; |
8990e307 |
376 | IoTYPE(io) = '<'; |
99b89507 |
377 | /*SUPPRESS 530*/ |
378 | for (; isSPACE(*name); name++) ; |
a687059c |
379 | if (strEQ(name,"-")) { |
760ac839 |
380 | fp = PerlIO_stdin(); |
8990e307 |
381 | IoTYPE(io) = '-'; |
a687059c |
382 | } |
383 | else |
760ac839 |
384 | fp = PerlIO_open(name,"r"); |
a687059c |
385 | } |
386 | } |
bee1dbe2 |
387 | if (!fp) { |
d008e5eb |
388 | dTHR; |
599cee73 |
389 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == '<' && strchr(name, '\n')) |
cea2e8a9 |
390 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); |
6e21c824 |
391 | goto say_false; |
bee1dbe2 |
392 | } |
8990e307 |
393 | if (IoTYPE(io) && |
394 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { |
96827780 |
395 | dTHR; |
3280af22 |
396 | if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { |
760ac839 |
397 | (void)PerlIO_close(fp); |
6e21c824 |
398 | goto say_false; |
a687059c |
399 | } |
3280af22 |
400 | if (S_ISSOCK(PL_statbuf.st_mode)) |
8990e307 |
401 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 |
402 | #ifdef HAS_SOCKET |
403 | else if ( |
c623bd54 |
404 | #ifdef S_IFMT |
3280af22 |
405 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 |
406 | #else |
b28d0864 |
407 | !PL_statbuf.st_mode |
99b89507 |
408 | #endif |
409 | ) { |
96827780 |
410 | char tmpbuf[256]; |
411 | Sock_size_t buflen = sizeof tmpbuf; |
3028581b |
412 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e |
413 | &buflen) >= 0 |
414 | || errno != ENOTSOCK) |
8990e307 |
415 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 |
416 | /* but some return 0 for streams too, sigh */ |
417 | } |
bf38876a |
418 | #endif |
a687059c |
419 | } |
6e21c824 |
420 | if (saveifp) { /* must use old fp? */ |
760ac839 |
421 | fd = PerlIO_fileno(saveifp); |
6e21c824 |
422 | if (saveofp) { |
760ac839 |
423 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 |
424 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 |
425 | PerlIO_close(saveofp); |
99b89507 |
426 | if (fd > 2) |
427 | Safefree(saveofp); |
6e21c824 |
428 | } |
429 | } |
760ac839 |
430 | if (fd != PerlIO_fileno(fp)) { |
d8a83dd3 |
431 | Pid_t pid; |
79072805 |
432 | SV *sv; |
bee1dbe2 |
433 | |
3028581b |
434 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
3280af22 |
435 | sv = *av_fetch(PL_fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e |
436 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
437 | pid = SvIVX(sv); |
438 | SvIVX(sv) = 0; |
3280af22 |
439 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
a0d0e21e |
440 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 |
441 | SvIVX(sv) = pid; |
3500f679 |
442 | if (!was_fdopen) |
443 | PerlIO_close(fp); |
bee1dbe2 |
444 | |
6e21c824 |
445 | } |
446 | fp = saveifp; |
760ac839 |
447 | PerlIO_clearerr(fp); |
6e21c824 |
448 | } |
a0d0e21e |
449 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
a8710ca1 |
450 | { |
451 | int save_errno = errno; |
452 | fd = PerlIO_fileno(fp); |
453 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ |
454 | errno = save_errno; |
455 | } |
1462b684 |
456 | #endif |
8990e307 |
457 | IoIFP(io) = fp; |
684bef36 |
458 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a |
459 | if (writing) { |
96827780 |
460 | dTHR; |
8990e307 |
461 | if (IoTYPE(io) == 's' |
3280af22 |
462 | || (IoTYPE(io) == '>' && S_ISCHR(PL_statbuf.st_mode)) ) { |
760ac839 |
463 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
464 | PerlIO_close(fp); |
8990e307 |
465 | IoIFP(io) = Nullfp; |
6e21c824 |
466 | goto say_false; |
fe14fcc3 |
467 | } |
1462b684 |
468 | } |
469 | else |
8990e307 |
470 | IoOFP(io) = fp; |
bf38876a |
471 | } |
a687059c |
472 | return TRUE; |
6e21c824 |
473 | |
474 | say_false: |
8990e307 |
475 | IoIFP(io) = saveifp; |
476 | IoOFP(io) = saveofp; |
477 | IoTYPE(io) = savetype; |
6e21c824 |
478 | return FALSE; |
a687059c |
479 | } |
480 | |
760ac839 |
481 | PerlIO * |
864dbfa3 |
482 | Perl_nextargv(pTHX_ register GV *gv) |
a687059c |
483 | { |
79072805 |
484 | register SV *sv; |
99b89507 |
485 | #ifndef FLEXFILENAMES |
c623bd54 |
486 | int filedev; |
487 | int fileino; |
99b89507 |
488 | #endif |
761237fe |
489 | Uid_t fileuid; |
490 | Gid_t filegid; |
18708f5a |
491 | IO *io = GvIOp(gv); |
fe14fcc3 |
492 | |
3280af22 |
493 | if (!PL_argvoutgv) |
494 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
18708f5a |
495 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
496 | IoFLAGS(io) &= ~IOf_START; |
7a1c5554 |
497 | if (PL_inplace) { |
498 | if (!PL_argvout_stack) |
499 | PL_argvout_stack = newAV(); |
18708f5a |
500 | av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); |
7a1c5554 |
501 | } |
18708f5a |
502 | } |
3280af22 |
503 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
504 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 |
505 | #ifdef HAS_FCHMOD |
3280af22 |
506 | (void)fchmod(PL_lastfd,PL_filemode); |
fe14fcc3 |
507 | #else |
b28d0864 |
508 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 |
509 | #endif |
510 | } |
3280af22 |
511 | PL_filemode = 0; |
79072805 |
512 | while (av_len(GvAV(gv)) >= 0) { |
11343788 |
513 | dTHR; |
85aff577 |
514 | STRLEN oldlen; |
79072805 |
515 | sv = av_shift(GvAV(gv)); |
8990e307 |
516 | SAVEFREESV(sv); |
79072805 |
517 | sv_setsv(GvSV(gv),sv); |
518 | SvSETMAGIC(GvSV(gv)); |
3280af22 |
519 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 |
520 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 |
521 | if (PL_inplace) { |
79072805 |
522 | TAINT_PROPER("inplace open"); |
3280af22 |
523 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 |
524 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e |
525 | return IoIFP(GvIOp(gv)); |
c623bd54 |
526 | } |
99b89507 |
527 | #ifndef FLEXFILENAMES |
b28d0864 |
528 | filedev = PL_statbuf.st_dev; |
529 | fileino = PL_statbuf.st_ino; |
99b89507 |
530 | #endif |
3280af22 |
531 | PL_filemode = PL_statbuf.st_mode; |
532 | fileuid = PL_statbuf.st_uid; |
533 | filegid = PL_statbuf.st_gid; |
534 | if (!S_ISREG(PL_filemode)) { |
0453d815 |
535 | if (ckWARN_d(WARN_INPLACE)) |
536 | Perl_warner(aTHX_ WARN_INPLACE, |
537 | "Can't do inplace edit: %s is not a regular file", |
538 | PL_oldname ); |
79072805 |
539 | do_close(gv,FALSE); |
c623bd54 |
540 | continue; |
541 | } |
3280af22 |
542 | if (*PL_inplace) { |
543 | char *star = strchr(PL_inplace, '*'); |
2d259d92 |
544 | if (star) { |
3280af22 |
545 | char *begin = PL_inplace; |
2d259d92 |
546 | sv_setpvn(sv, "", 0); |
547 | do { |
548 | sv_catpvn(sv, begin, star - begin); |
3280af22 |
549 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 |
550 | begin = ++star; |
551 | } while ((star = strchr(begin, '*'))); |
3d66d7bb |
552 | if (*begin) |
553 | sv_catpv(sv,begin); |
2d259d92 |
554 | } |
555 | else { |
3280af22 |
556 | sv_catpv(sv,PL_inplace); |
2d259d92 |
557 | } |
c623bd54 |
558 | #ifndef FLEXFILENAMES |
b28d0864 |
559 | if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
560 | && PL_statbuf.st_dev == filedev |
561 | && PL_statbuf.st_ino == fileino |
39e571d4 |
562 | #ifdef DJGPP |
563 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 |
564 | #endif |
f248d071 |
565 | ) |
566 | { |
567 | if (ckWARN_d(WARN_INPLACE)) |
568 | Perl_warner(aTHX_ WARN_INPLACE, |
569 | "Can't do inplace edit: %s would not be unique", |
570 | SvPVX(sv)); |
79072805 |
571 | do_close(gv,FALSE); |
c623bd54 |
572 | continue; |
573 | } |
574 | #endif |
fe14fcc3 |
575 | #ifdef HAS_RENAME |
2c2d71f5 |
576 | #if !defined(DOSISH) && !defined(CYGWIN) |
3280af22 |
577 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 |
578 | if (ckWARN_d(WARN_INPLACE)) |
579 | Perl_warner(aTHX_ WARN_INPLACE, |
580 | "Can't rename %s to %s: %s, skipping file", |
581 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
582 | do_close(gv,FALSE); |
c623bd54 |
583 | continue; |
584 | } |
a687059c |
585 | #else |
79072805 |
586 | do_close(gv,FALSE); |
3028581b |
587 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 |
588 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 |
589 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff |
590 | #endif /* DOSISH */ |
ff8e2863 |
591 | #else |
463ee0b2 |
592 | (void)UNLINK(SvPVX(sv)); |
b28d0864 |
593 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 |
594 | if (ckWARN_d(WARN_INPLACE)) |
595 | Perl_warner(aTHX_ WARN_INPLACE, |
596 | "Can't rename %s to %s: %s, skipping file", |
597 | PL_oldname, SvPVX(sv), Strerror(errno) ); |
79072805 |
598 | do_close(gv,FALSE); |
c623bd54 |
599 | continue; |
600 | } |
b28d0864 |
601 | (void)UNLINK(PL_oldname); |
a687059c |
602 | #endif |
603 | } |
604 | else { |
a8c18271 |
605 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 |
606 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 |
607 | if (UNLINK(PL_oldname) < 0) { |
0453d815 |
608 | if (ckWARN_d(WARN_INPLACE)) |
609 | Perl_warner(aTHX_ WARN_INPLACE, |
610 | "Can't remove %s: %s, skipping file", |
611 | PL_oldname, Strerror(errno) ); |
79072805 |
612 | do_close(gv,FALSE); |
fe14fcc3 |
613 | continue; |
614 | } |
edc7bc49 |
615 | # endif |
ff8e2863 |
616 | #else |
cea2e8a9 |
617 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 |
618 | #endif |
a687059c |
619 | } |
620 | |
3280af22 |
621 | sv_setpvn(sv,">",!PL_inplace); |
622 | sv_catpvn(sv,PL_oldname,oldlen); |
748a9306 |
623 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 |
624 | #ifdef VMS |
625 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a |
626 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) |
4119ab01 |
627 | #else |
3280af22 |
628 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a |
629 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) |
4119ab01 |
630 | #endif |
18708f5a |
631 | { |
0453d815 |
632 | if (ckWARN_d(WARN_INPLACE)) |
633 | Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", |
634 | PL_oldname, Strerror(errno) ); |
79072805 |
635 | do_close(gv,FALSE); |
fe14fcc3 |
636 | continue; |
637 | } |
3280af22 |
638 | setdefout(PL_argvoutgv); |
639 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); |
640 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); |
fe14fcc3 |
641 | #ifdef HAS_FCHMOD |
3280af22 |
642 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c |
643 | #else |
3e3baf6d |
644 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
645 | /* Borland runtime creates a readonly file! */ |
b28d0864 |
646 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d |
647 | # endif |
a687059c |
648 | #endif |
3280af22 |
649 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 |
650 | #ifdef HAS_FCHOWN |
3280af22 |
651 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c |
652 | #else |
fe14fcc3 |
653 | #ifdef HAS_CHOWN |
b28d0864 |
654 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c |
655 | #endif |
b1248f16 |
656 | #endif |
fe14fcc3 |
657 | } |
a687059c |
658 | } |
a0d0e21e |
659 | return IoIFP(GvIOp(gv)); |
a687059c |
660 | } |
4d61ec05 |
661 | else { |
662 | dTHR; |
663 | if (ckWARN_d(WARN_INPLACE)) { |
664 | if (!S_ISREG(PL_statbuf.st_mode)) |
665 | Perl_warner(aTHX_ WARN_INPLACE, |
666 | "Can't do inplace edit: %s is not a regular file", |
9a7dcd9c |
667 | PL_oldname); |
4d61ec05 |
668 | else |
9a7dcd9c |
669 | Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s", |
4d61ec05 |
670 | PL_oldname, Strerror(errno)); |
671 | } |
672 | } |
a687059c |
673 | } |
18708f5a |
674 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
675 | IoFLAGS(io) |= IOf_START; |
3280af22 |
676 | if (PL_inplace) { |
677 | (void)do_close(PL_argvoutgv,FALSE); |
7a1c5554 |
678 | if (io && (IoFLAGS(io) & IOf_ARGV) |
679 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) |
680 | { |
18708f5a |
681 | GV *oldout = (GV*)av_pop(PL_argvout_stack); |
682 | setdefout(oldout); |
683 | SvREFCNT_dec(oldout); |
684 | return Nullfp; |
685 | } |
4633a7c4 |
686 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c |
687 | } |
688 | return Nullfp; |
689 | } |
690 | |
fe14fcc3 |
691 | #ifdef HAS_PIPE |
afd9f252 |
692 | void |
864dbfa3 |
693 | Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) |
afd9f252 |
694 | { |
79072805 |
695 | register IO *rstio; |
696 | register IO *wstio; |
afd9f252 |
697 | int fd[2]; |
698 | |
79072805 |
699 | if (!rgv) |
afd9f252 |
700 | goto badexit; |
79072805 |
701 | if (!wgv) |
afd9f252 |
702 | goto badexit; |
703 | |
a0d0e21e |
704 | rstio = GvIOn(rgv); |
705 | wstio = GvIOn(wgv); |
afd9f252 |
706 | |
a0d0e21e |
707 | if (IoIFP(rstio)) |
79072805 |
708 | do_close(rgv,FALSE); |
a0d0e21e |
709 | if (IoIFP(wstio)) |
79072805 |
710 | do_close(wgv,FALSE); |
afd9f252 |
711 | |
3028581b |
712 | if (PerlProc_pipe(fd) < 0) |
afd9f252 |
713 | goto badexit; |
760ac839 |
714 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
715 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); |
8990e307 |
716 | IoIFP(wstio) = IoOFP(wstio); |
717 | IoTYPE(rstio) = '<'; |
718 | IoTYPE(wstio) = '>'; |
719 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 |
720 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b |
721 | else PerlLIO_close(fd[0]); |
760ac839 |
722 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b |
723 | else PerlLIO_close(fd[1]); |
fe14fcc3 |
724 | goto badexit; |
725 | } |
afd9f252 |
726 | |
3280af22 |
727 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 |
728 | return; |
729 | |
730 | badexit: |
3280af22 |
731 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 |
732 | return; |
733 | } |
b1248f16 |
734 | #endif |
afd9f252 |
735 | |
517844ec |
736 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c |
737 | bool |
864dbfa3 |
738 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c |
739 | { |
1193dd27 |
740 | bool retval; |
741 | IO *io; |
a687059c |
742 | |
79072805 |
743 | if (!gv) |
3280af22 |
744 | gv = PL_argvgv; |
a0d0e21e |
745 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 |
746 | if (not_implicit) |
747 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 |
748 | return FALSE; |
99b89507 |
749 | } |
79072805 |
750 | io = GvIO(gv); |
751 | if (!io) { /* never opened */ |
1d2dff63 |
752 | if (not_implicit) { |
d008e5eb |
753 | dTHR; |
599cee73 |
754 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
755 | Perl_warner(aTHX_ WARN_UNOPENED, |
599cee73 |
756 | "Close on unopened file <%s>",GvENAME(gv)); |
1d2dff63 |
757 | SETERRNO(EBADF,SS$_IVCHAN); |
758 | } |
a687059c |
759 | return FALSE; |
760 | } |
f2b5be74 |
761 | retval = io_close(io, not_implicit); |
517844ec |
762 | if (not_implicit) { |
1193dd27 |
763 | IoLINES(io) = 0; |
764 | IoPAGE(io) = 0; |
765 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
766 | } |
767 | IoTYPE(io) = ' '; |
768 | return retval; |
769 | } |
770 | |
771 | bool |
f2b5be74 |
772 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 |
773 | { |
774 | bool retval = FALSE; |
775 | int status; |
776 | |
8990e307 |
777 | if (IoIFP(io)) { |
778 | if (IoTYPE(io) == '|') { |
3028581b |
779 | status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 |
780 | if (not_implicit) { |
781 | STATUS_NATIVE_SET(status); |
782 | retval = (STATUS_POSIX == 0); |
783 | } |
784 | else { |
785 | retval = (status != -1); |
786 | } |
a687059c |
787 | } |
8990e307 |
788 | else if (IoTYPE(io) == '-') |
a687059c |
789 | retval = TRUE; |
790 | else { |
8990e307 |
791 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 |
792 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
793 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 |
794 | } |
795 | else |
760ac839 |
796 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c |
797 | } |
8990e307 |
798 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 |
799 | } |
f2b5be74 |
800 | else if (not_implicit) { |
20408e3c |
801 | SETERRNO(EBADF,SS$_IVCHAN); |
802 | } |
1193dd27 |
803 | |
a687059c |
804 | return retval; |
805 | } |
806 | |
807 | bool |
864dbfa3 |
808 | Perl_do_eof(pTHX_ GV *gv) |
a687059c |
809 | { |
11343788 |
810 | dTHR; |
79072805 |
811 | register IO *io; |
a687059c |
812 | int ch; |
813 | |
79072805 |
814 | io = GvIO(gv); |
a687059c |
815 | |
79072805 |
816 | if (!io) |
a687059c |
817 | return TRUE; |
af8c498a |
818 | else if (ckWARN(WARN_IO) |
819 | && (IoTYPE(io) == '>' || IoIFP(io) == PerlIO_stdout() |
820 | || IoIFP(io) == PerlIO_stderr())) |
821 | { |
822 | SV* sv = sv_newmortal(); |
823 | gv_efullname3(sv, gv, Nullch); |
824 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", |
825 | SvPV_nolen(sv)); |
826 | } |
a687059c |
827 | |
8990e307 |
828 | while (IoIFP(io)) { |
a687059c |
829 | |
760ac839 |
830 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 |
831 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 |
832 | return FALSE; /* this is the most usual case */ |
833 | } |
a687059c |
834 | |
760ac839 |
835 | ch = PerlIO_getc(IoIFP(io)); |
a687059c |
836 | if (ch != EOF) { |
760ac839 |
837 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c |
838 | return FALSE; |
839 | } |
760ac839 |
840 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 |
841 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
842 | PerlIO_set_cnt(IoIFP(io),-1); |
760ac839 |
843 | } |
533c011a |
844 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
3280af22 |
845 | if (!nextargv(PL_argvgv)) /* get another fp handy */ |
a687059c |
846 | return TRUE; |
847 | } |
848 | else |
849 | return TRUE; /* normal fp, definitely end of file */ |
850 | } |
851 | return TRUE; |
852 | } |
853 | |
5ff3f7a4 |
854 | Off_t |
864dbfa3 |
855 | Perl_do_tell(pTHX_ GV *gv) |
a687059c |
856 | { |
79072805 |
857 | register IO *io; |
96e4d5b1 |
858 | register PerlIO *fp; |
a687059c |
859 | |
96e4d5b1 |
860 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
861 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 |
862 | if (PerlIO_eof(fp)) |
863 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
864 | #endif |
8903cb82 |
865 | return PerlIO_tell(fp); |
96e4d5b1 |
866 | } |
d008e5eb |
867 | { |
868 | dTHR; |
869 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
870 | Perl_warner(aTHX_ WARN_UNOPENED, "tell() on unopened file"); |
d008e5eb |
871 | } |
748a9306 |
872 | SETERRNO(EBADF,RMS$_IFI); |
5ff3f7a4 |
873 | return (Off_t)-1; |
a687059c |
874 | } |
875 | |
876 | bool |
864dbfa3 |
877 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c |
878 | { |
79072805 |
879 | register IO *io; |
137443ea |
880 | register PerlIO *fp; |
a687059c |
881 | |
137443ea |
882 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 |
883 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea |
884 | if (PerlIO_eof(fp)) |
885 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ |
bee1dbe2 |
886 | #endif |
8903cb82 |
887 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea |
888 | } |
d008e5eb |
889 | { |
890 | dTHR; |
891 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
892 | Perl_warner(aTHX_ WARN_UNOPENED, "seek() on unopened file"); |
d008e5eb |
893 | } |
748a9306 |
894 | SETERRNO(EBADF,RMS$_IFI); |
a687059c |
895 | return FALSE; |
896 | } |
897 | |
97cc44eb |
898 | Off_t |
864dbfa3 |
899 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 |
900 | { |
901 | register IO *io; |
902 | register PerlIO *fp; |
903 | |
904 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) |
3028581b |
905 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
d008e5eb |
906 | { |
907 | dTHR; |
908 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
909 | Perl_warner(aTHX_ WARN_UNOPENED, "sysseek() on unopened file"); |
d008e5eb |
910 | } |
8903cb82 |
911 | SETERRNO(EBADF,RMS$_IFI); |
d9b3e12d |
912 | return (Off_t)-1; |
8903cb82 |
913 | } |
914 | |
6ff81951 |
915 | int |
864dbfa3 |
916 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int flag) |
6ff81951 |
917 | { |
918 | if (flag != TRUE) |
cea2e8a9 |
919 | Perl_croak(aTHX_ "panic: unsetting binmode"); /* Not implemented yet */ |
6ff81951 |
920 | #ifdef DOSISH |
61ae2fbf |
921 | #if defined(atarist) || defined(__MINT__) |
6ff81951 |
922 | if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN)) |
923 | return 1; |
924 | else |
925 | return 0; |
926 | #else |
927 | if (PerlLIO_setmode(PerlIO_fileno(fp), OP_BINARY) != -1) { |
928 | #if defined(WIN32) && defined(__BORLANDC__) |
929 | /* The translation mode of the stream is maintained independent |
930 | * of the translation mode of the fd in the Borland RTL (heavy |
931 | * digging through their runtime sources reveal). User has to |
932 | * set the mode explicitly for the stream (though they don't |
933 | * document this anywhere). GSAR 97-5-24 |
934 | */ |
935 | PerlIO_seek(fp,0L,0); |
873ef191 |
936 | ((FILE*)fp)->flags |= _F_BIN; |
6ff81951 |
937 | #endif |
938 | return 1; |
939 | } |
940 | else |
941 | return 0; |
942 | #endif |
943 | #else |
944 | #if defined(USEMYBINMODE) |
1cab015a |
945 | if (my_binmode(fp,iotype) != FALSE) |
6ff81951 |
946 | return 1; |
947 | else |
948 | return 0; |
949 | #else |
950 | return 1; |
951 | #endif |
952 | #endif |
953 | } |
954 | |
a0d0e21e |
955 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 |
956 | /* code courtesy of William Kucharski */ |
fe14fcc3 |
957 | #define HAS_CHSIZE |
6eb13c3b |
958 | |
517844ec |
959 | I32 my_chsize(fd, length) |
79072805 |
960 | I32 fd; /* file descriptor */ |
85e6fe83 |
961 | Off_t length; /* length to set file to */ |
6eb13c3b |
962 | { |
6eb13c3b |
963 | struct flock fl; |
964 | struct stat filebuf; |
965 | |
3028581b |
966 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b |
967 | return -1; |
968 | |
969 | if (filebuf.st_size < length) { |
970 | |
971 | /* extend file length */ |
972 | |
3028581b |
973 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b |
974 | return -1; |
975 | |
976 | /* write a "0" byte */ |
977 | |
3028581b |
978 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b |
979 | return -1; |
980 | } |
981 | else { |
982 | /* truncate length */ |
983 | |
984 | fl.l_whence = 0; |
985 | fl.l_len = 0; |
986 | fl.l_start = length; |
a0d0e21e |
987 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b |
988 | |
989 | /* |
a0d0e21e |
990 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b |
991 | * fcntl(2), which truncates the file so that it ends at the |
992 | * position indicated by fl.l_start. |
993 | * |
994 | * Will minor miracles never cease? |
995 | */ |
996 | |
a0d0e21e |
997 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b |
998 | return -1; |
999 | |
1000 | } |
1001 | |
1002 | return 0; |
1003 | } |
a0d0e21e |
1004 | #endif /* F_FREESP */ |
ff8e2863 |
1005 | |
a687059c |
1006 | bool |
864dbfa3 |
1007 | Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) |
a687059c |
1008 | { |
1009 | register char *tmps; |
463ee0b2 |
1010 | STRLEN len; |
a687059c |
1011 | |
79072805 |
1012 | /* assuming fp is checked earlier */ |
1013 | if (!sv) |
1014 | return TRUE; |
3280af22 |
1015 | if (PL_ofmt) { |
8990e307 |
1016 | if (SvGMAGICAL(sv)) |
79072805 |
1017 | mg_get(sv); |
463ee0b2 |
1018 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
65202027 |
1019 | PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); |
760ac839 |
1020 | return !PerlIO_error(fp); |
79072805 |
1021 | } |
463ee0b2 |
1022 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 |
1023 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 |
1024 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 |
1025 | return !PerlIO_error(fp); |
79072805 |
1026 | } |
a687059c |
1027 | } |
79072805 |
1028 | switch (SvTYPE(sv)) { |
1029 | case SVt_NULL: |
d008e5eb |
1030 | { |
1031 | dTHR; |
1032 | if (ckWARN(WARN_UNINITIALIZED)) |
b89fed5f |
1033 | report_uninit(); |
d008e5eb |
1034 | } |
ff8e2863 |
1035 | return TRUE; |
79072805 |
1036 | case SVt_IV: |
a0d0e21e |
1037 | if (SvIOK(sv)) { |
1038 | if (SvGMAGICAL(sv)) |
1039 | mg_get(sv); |
cf2093f6 |
1040 | if (SvIsUV(sv)) |
57def98f |
1041 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 |
1042 | else |
57def98f |
1043 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); |
760ac839 |
1044 | return !PerlIO_error(fp); |
a0d0e21e |
1045 | } |
1046 | /* FALL THROUGH */ |
79072805 |
1047 | default: |
463ee0b2 |
1048 | tmps = SvPV(sv, len); |
79072805 |
1049 | break; |
ff8e2863 |
1050 | } |
94e4c244 |
1051 | /* To detect whether the process is about to overstep its |
1052 | * filesize limit we would need getrlimit(). We could then |
1053 | * also transparently raise the limit with setrlimit() -- |
1054 | * but only until the system hard limit/the filesystem limit, |
c5dd3cdd |
1055 | * at which we would get EPERM. Note that when using buffered |
1056 | * io the write failure can be delayed until the flush/close. --jhi */ |
760ac839 |
1057 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c |
1058 | return FALSE; |
760ac839 |
1059 | return !PerlIO_error(fp); |
a687059c |
1060 | } |
1061 | |
79072805 |
1062 | I32 |
cea2e8a9 |
1063 | Perl_my_stat(pTHX) |
a687059c |
1064 | { |
4e35701f |
1065 | djSP; |
79072805 |
1066 | IO *io; |
748a9306 |
1067 | GV* tmpgv; |
79072805 |
1068 | |
533c011a |
1069 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
1070 | EXTEND(SP,1); |
638eceb6 |
1071 | tmpgv = cGVOP_gv; |
748a9306 |
1072 | do_fstat: |
1073 | io = GvIO(tmpgv); |
8990e307 |
1074 | if (io && IoIFP(io)) { |
3280af22 |
1075 | PL_statgv = tmpgv; |
1076 | sv_setpv(PL_statname,""); |
1077 | PL_laststype = OP_STAT; |
1078 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); |
a687059c |
1079 | } |
1080 | else { |
3280af22 |
1081 | if (tmpgv == PL_defgv) |
1082 | return PL_laststatval; |
599cee73 |
1083 | if (ckWARN(WARN_UNOPENED)) |
cea2e8a9 |
1084 | Perl_warner(aTHX_ WARN_UNOPENED, "Stat on unopened file <%s>", |
748a9306 |
1085 | GvENAME(tmpgv)); |
3280af22 |
1086 | PL_statgv = Nullgv; |
1087 | sv_setpv(PL_statname,""); |
1088 | return (PL_laststatval = -1); |
a687059c |
1089 | } |
1090 | } |
1091 | else { |
748a9306 |
1092 | SV* sv = POPs; |
4b74e3fb |
1093 | char *s; |
2d8e6c8d |
1094 | STRLEN n_a; |
79072805 |
1095 | PUTBACK; |
748a9306 |
1096 | if (SvTYPE(sv) == SVt_PVGV) { |
1097 | tmpgv = (GV*)sv; |
1098 | goto do_fstat; |
1099 | } |
1100 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { |
1101 | tmpgv = (GV*)SvRV(sv); |
1102 | goto do_fstat; |
1103 | } |
1104 | |
2d8e6c8d |
1105 | s = SvPV(sv, n_a); |
3280af22 |
1106 | PL_statgv = Nullgv; |
1107 | sv_setpv(PL_statname, s); |
1108 | PL_laststype = OP_STAT; |
1109 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); |
599cee73 |
1110 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
cea2e8a9 |
1111 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat"); |
3280af22 |
1112 | return PL_laststatval; |
a687059c |
1113 | } |
1114 | } |
1115 | |
79072805 |
1116 | I32 |
cea2e8a9 |
1117 | Perl_my_lstat(pTHX) |
c623bd54 |
1118 | { |
4e35701f |
1119 | djSP; |
79072805 |
1120 | SV *sv; |
2d8e6c8d |
1121 | STRLEN n_a; |
533c011a |
1122 | if (PL_op->op_flags & OPf_REF) { |
924508f0 |
1123 | EXTEND(SP,1); |
638eceb6 |
1124 | if (cGVOP_gv == PL_defgv) { |
3280af22 |
1125 | if (PL_laststype != OP_LSTAT) |
cea2e8a9 |
1126 | Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); |
3280af22 |
1127 | return PL_laststatval; |
fe14fcc3 |
1128 | } |
cea2e8a9 |
1129 | Perl_croak(aTHX_ "You can't use -l on a filehandle"); |
fe14fcc3 |
1130 | } |
c623bd54 |
1131 | |
3280af22 |
1132 | PL_laststype = OP_LSTAT; |
1133 | PL_statgv = Nullgv; |
79072805 |
1134 | sv = POPs; |
1135 | PUTBACK; |
2d8e6c8d |
1136 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
2d8e6c8d |
1137 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
2d8e6c8d |
1138 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
cea2e8a9 |
1139 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat"); |
3280af22 |
1140 | return PL_laststatval; |
c623bd54 |
1141 | } |
1142 | |
a687059c |
1143 | bool |
864dbfa3 |
1144 | Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) |
a687059c |
1145 | { |
d5a9bfb0 |
1146 | return do_aexec5(really, mark, sp, 0, 0); |
1147 | } |
1148 | |
1149 | bool |
2aa1486d |
1150 | Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, |
1151 | int fd, int do_report) |
d5a9bfb0 |
1152 | { |
cd39f2b6 |
1153 | #ifdef MACOS_TRADITIONAL |
1154 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); |
1155 | #else |
a687059c |
1156 | register char **a; |
a687059c |
1157 | char *tmps; |
2d8e6c8d |
1158 | STRLEN n_a; |
a687059c |
1159 | |
79072805 |
1160 | if (sp > mark) { |
11343788 |
1161 | dTHR; |
3280af22 |
1162 | New(401,PL_Argv, sp - mark + 1, char*); |
1163 | a = PL_Argv; |
79072805 |
1164 | while (++mark <= sp) { |
1165 | if (*mark) |
2d8e6c8d |
1166 | *a++ = SvPVx(*mark, n_a); |
a687059c |
1167 | else |
1168 | *a++ = ""; |
1169 | } |
1170 | *a = Nullch; |
3280af22 |
1171 | if (*PL_Argv[0] != '/') /* will execvp use PATH? */ |
79072805 |
1172 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
2d8e6c8d |
1173 | if (really && *(tmps = SvPV(really, n_a))) |
3280af22 |
1174 | PerlProc_execvp(tmps,PL_Argv); |
a687059c |
1175 | else |
3280af22 |
1176 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
599cee73 |
1177 | if (ckWARN(WARN_EXEC)) |
cea2e8a9 |
1178 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
599cee73 |
1179 | PL_Argv[0], Strerror(errno)); |
d5a9bfb0 |
1180 | if (do_report) { |
1181 | int e = errno; |
1182 | |
1183 | PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1184 | PerlLIO_close(fd); |
1185 | } |
a687059c |
1186 | } |
bee1dbe2 |
1187 | do_execfree(); |
cd39f2b6 |
1188 | #endif |
a687059c |
1189 | return FALSE; |
1190 | } |
1191 | |
fe14fcc3 |
1192 | void |
864dbfa3 |
1193 | Perl_do_execfree(pTHX) |
ff8e2863 |
1194 | { |
3280af22 |
1195 | if (PL_Argv) { |
1196 | Safefree(PL_Argv); |
1197 | PL_Argv = Null(char **); |
ff8e2863 |
1198 | } |
3280af22 |
1199 | if (PL_Cmd) { |
1200 | Safefree(PL_Cmd); |
1201 | PL_Cmd = Nullch; |
ff8e2863 |
1202 | } |
1203 | } |
1204 | |
cd39f2b6 |
1205 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
760ac839 |
1206 | |
a687059c |
1207 | bool |
864dbfa3 |
1208 | Perl_do_exec(pTHX_ char *cmd) |
a687059c |
1209 | { |
e446cec8 |
1210 | return do_exec3(cmd,0,0); |
1211 | } |
1212 | |
1213 | bool |
864dbfa3 |
1214 | Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) |
e446cec8 |
1215 | { |
a687059c |
1216 | register char **a; |
1217 | register char *s; |
a687059c |
1218 | char flags[10]; |
1219 | |
748a9306 |
1220 | while (*cmd && isSPACE(*cmd)) |
1221 | cmd++; |
1222 | |
a687059c |
1223 | /* save an extra exec if possible */ |
1224 | |
bf38876a |
1225 | #ifdef CSH |
3280af22 |
1226 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { |
a687059c |
1227 | strcpy(flags,"-c"); |
3280af22 |
1228 | s = cmd+PL_cshlen+3; |
a687059c |
1229 | if (*s == 'f') { |
1230 | s++; |
1231 | strcat(flags,"f"); |
1232 | } |
1233 | if (*s == ' ') |
1234 | s++; |
1235 | if (*s++ == '\'') { |
1236 | char *ncmd = s; |
1237 | |
1238 | while (*s) |
1239 | s++; |
1240 | if (s[-1] == '\n') |
1241 | *--s = '\0'; |
1242 | if (s[-1] == '\'') { |
1243 | *--s = '\0'; |
3280af22 |
1244 | PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); |
a687059c |
1245 | *s = '\''; |
1246 | return FALSE; |
1247 | } |
1248 | } |
1249 | } |
bf38876a |
1250 | #endif /* CSH */ |
a687059c |
1251 | |
1252 | /* see if there are shell metacharacters in it */ |
1253 | |
748a9306 |
1254 | if (*cmd == '.' && isSPACE(cmd[1])) |
1255 | goto doshell; |
1256 | |
1257 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) |
1258 | goto doshell; |
1259 | |
99b89507 |
1260 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 |
1261 | if (*s == '=') |
1262 | goto doshell; |
748a9306 |
1263 | |
a687059c |
1264 | for (s = cmd; *s; s++) { |
93a17b20 |
1265 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c |
1266 | if (*s == '\n' && !s[1]) { |
1267 | *s = '\0'; |
1268 | break; |
1269 | } |
603a98b0 |
1270 | /* handle the 2>&1 construct at the end */ |
1271 | if (*s == '>' && s[1] == '&' && s[2] == '1' |
1272 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) |
1273 | && (!s[3] || isSPACE(s[3]))) |
1274 | { |
1275 | char *t = s + 3; |
1276 | |
1277 | while (*t && isSPACE(*t)) |
1278 | ++t; |
1279 | if (!*t && (dup2(1,2) != -1)) { |
1280 | s[-2] = '\0'; |
1281 | break; |
1282 | } |
1283 | } |
a687059c |
1284 | doshell: |
3280af22 |
1285 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
a687059c |
1286 | return FALSE; |
1287 | } |
1288 | } |
748a9306 |
1289 | |
3280af22 |
1290 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1291 | PL_Cmd = savepvn(cmd, s-cmd); |
1292 | a = PL_Argv; |
1293 | for (s = PL_Cmd; *s;) { |
99b89507 |
1294 | while (*s && isSPACE(*s)) s++; |
a687059c |
1295 | if (*s) |
1296 | *(a++) = s; |
99b89507 |
1297 | while (*s && !isSPACE(*s)) s++; |
a687059c |
1298 | if (*s) |
1299 | *s++ = '\0'; |
1300 | } |
1301 | *a = Nullch; |
3280af22 |
1302 | if (PL_Argv[0]) { |
1303 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
b1248f16 |
1304 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 |
1305 | do_execfree(); |
a687059c |
1306 | goto doshell; |
b1248f16 |
1307 | } |
d008e5eb |
1308 | { |
1309 | dTHR; |
e446cec8 |
1310 | int e = errno; |
1311 | |
d008e5eb |
1312 | if (ckWARN(WARN_EXEC)) |
cea2e8a9 |
1313 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
d008e5eb |
1314 | PL_Argv[0], Strerror(errno)); |
e446cec8 |
1315 | if (do_report) { |
1316 | PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1317 | PerlLIO_close(fd); |
1318 | } |
d008e5eb |
1319 | } |
a687059c |
1320 | } |
ff8e2863 |
1321 | do_execfree(); |
a687059c |
1322 | return FALSE; |
1323 | } |
1324 | |
6890e559 |
1325 | #endif /* OS2 || WIN32 */ |
760ac839 |
1326 | |
79072805 |
1327 | I32 |
864dbfa3 |
1328 | Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) |
a687059c |
1329 | { |
11343788 |
1330 | dTHR; |
79072805 |
1331 | register I32 val; |
1332 | register I32 val2; |
1333 | register I32 tot = 0; |
20408e3c |
1334 | char *what; |
a687059c |
1335 | char *s; |
79072805 |
1336 | SV **oldmark = mark; |
2d8e6c8d |
1337 | STRLEN n_a; |
a687059c |
1338 | |
20408e3c |
1339 | #define APPLY_TAINT_PROPER() \ |
3280af22 |
1340 | STMT_START { \ |
17406bd6 |
1341 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 |
1342 | } STMT_END |
20408e3c |
1343 | |
1344 | /* This is a first heuristic; it doesn't catch tainting magic. */ |
3280af22 |
1345 | if (PL_tainting) { |
463ee0b2 |
1346 | while (++mark <= sp) { |
bbce6d69 |
1347 | if (SvTAINTED(*mark)) { |
1348 | TAINT; |
1349 | break; |
1350 | } |
463ee0b2 |
1351 | } |
1352 | mark = oldmark; |
1353 | } |
a687059c |
1354 | switch (type) { |
79072805 |
1355 | case OP_CHMOD: |
20408e3c |
1356 | what = "chmod"; |
1357 | APPLY_TAINT_PROPER(); |
79072805 |
1358 | if (++mark <= sp) { |
463ee0b2 |
1359 | val = SvIVx(*mark); |
20408e3c |
1360 | APPLY_TAINT_PROPER(); |
1361 | tot = sp - mark; |
79072805 |
1362 | while (++mark <= sp) { |
2d8e6c8d |
1363 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1364 | APPLY_TAINT_PROPER(); |
1365 | if (PerlLIO_chmod(name, val)) |
a687059c |
1366 | tot--; |
1367 | } |
1368 | } |
1369 | break; |
fe14fcc3 |
1370 | #ifdef HAS_CHOWN |
79072805 |
1371 | case OP_CHOWN: |
20408e3c |
1372 | what = "chown"; |
1373 | APPLY_TAINT_PROPER(); |
79072805 |
1374 | if (sp - mark > 2) { |
463ee0b2 |
1375 | val = SvIVx(*++mark); |
1376 | val2 = SvIVx(*++mark); |
20408e3c |
1377 | APPLY_TAINT_PROPER(); |
a0d0e21e |
1378 | tot = sp - mark; |
79072805 |
1379 | while (++mark <= sp) { |
2d8e6c8d |
1380 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1381 | APPLY_TAINT_PROPER(); |
36660982 |
1382 | if (PerlLIO_chown(name, val, val2)) |
a687059c |
1383 | tot--; |
1384 | } |
1385 | } |
1386 | break; |
b1248f16 |
1387 | #endif |
dd64f1c3 |
1388 | /* |
1389 | XXX Should we make lchown() directly available from perl? |
1390 | For now, we'll let Configure test for HAS_LCHOWN, but do |
1391 | nothing in the core. |
1392 | --AD 5/1998 |
1393 | */ |
fe14fcc3 |
1394 | #ifdef HAS_KILL |
79072805 |
1395 | case OP_KILL: |
20408e3c |
1396 | what = "kill"; |
1397 | APPLY_TAINT_PROPER(); |
55497cff |
1398 | if (mark == sp) |
1399 | break; |
2d8e6c8d |
1400 | s = SvPVx(*++mark, n_a); |
79072805 |
1401 | if (isUPPER(*s)) { |
1402 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1403 | s += 3; |
1404 | if (!(val = whichsig(s))) |
cea2e8a9 |
1405 | Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); |
79072805 |
1406 | } |
1407 | else |
463ee0b2 |
1408 | val = SvIVx(*mark); |
20408e3c |
1409 | APPLY_TAINT_PROPER(); |
1410 | tot = sp - mark; |
3595fcef |
1411 | #ifdef VMS |
1412 | /* kill() doesn't do process groups (job trees?) under VMS */ |
1413 | if (val < 0) val = -val; |
1414 | if (val == SIGKILL) { |
1415 | # include <starlet.h> |
1416 | /* Use native sys$delprc() to insure that target process is |
1417 | * deleted; supervisor-mode images don't pay attention to |
1418 | * CRTL's emulation of Unix-style signals and kill() |
1419 | */ |
1420 | while (++mark <= sp) { |
1421 | I32 proc = SvIVx(*mark); |
1422 | register unsigned long int __vmssts; |
20408e3c |
1423 | APPLY_TAINT_PROPER(); |
3595fcef |
1424 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1425 | tot--; |
1426 | switch (__vmssts) { |
1427 | case SS$_NONEXPR: |
1428 | case SS$_NOSUCHNODE: |
1429 | SETERRNO(ESRCH,__vmssts); |
1430 | break; |
1431 | case SS$_NOPRIV: |
1432 | SETERRNO(EPERM,__vmssts); |
1433 | break; |
1434 | default: |
1435 | SETERRNO(EVMSERR,__vmssts); |
1436 | } |
1437 | } |
1438 | } |
1439 | break; |
1440 | } |
1441 | #endif |
79072805 |
1442 | if (val < 0) { |
1443 | val = -val; |
1444 | while (++mark <= sp) { |
463ee0b2 |
1445 | I32 proc = SvIVx(*mark); |
20408e3c |
1446 | APPLY_TAINT_PROPER(); |
fe14fcc3 |
1447 | #ifdef HAS_KILLPG |
3028581b |
1448 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c |
1449 | #else |
3028581b |
1450 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c |
1451 | #endif |
79072805 |
1452 | tot--; |
a687059c |
1453 | } |
79072805 |
1454 | } |
1455 | else { |
1456 | while (++mark <= sp) { |
20408e3c |
1457 | I32 proc = SvIVx(*mark); |
1458 | APPLY_TAINT_PROPER(); |
1459 | if (PerlProc_kill(proc, val)) |
79072805 |
1460 | tot--; |
a687059c |
1461 | } |
1462 | } |
1463 | break; |
b1248f16 |
1464 | #endif |
79072805 |
1465 | case OP_UNLINK: |
20408e3c |
1466 | what = "unlink"; |
1467 | APPLY_TAINT_PROPER(); |
79072805 |
1468 | tot = sp - mark; |
1469 | while (++mark <= sp) { |
2d8e6c8d |
1470 | s = SvPVx(*mark, n_a); |
20408e3c |
1471 | APPLY_TAINT_PROPER(); |
3280af22 |
1472 | if (PL_euid || PL_unsafe) { |
a687059c |
1473 | if (UNLINK(s)) |
1474 | tot--; |
1475 | } |
1476 | else { /* don't let root wipe out directories without -U */ |
3280af22 |
1477 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c |
1478 | tot--; |
1479 | else { |
1480 | if (UNLINK(s)) |
1481 | tot--; |
1482 | } |
1483 | } |
1484 | } |
1485 | break; |
a0d0e21e |
1486 | #ifdef HAS_UTIME |
79072805 |
1487 | case OP_UTIME: |
20408e3c |
1488 | what = "utime"; |
1489 | APPLY_TAINT_PROPER(); |
79072805 |
1490 | if (sp - mark > 2) { |
748a9306 |
1491 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 |
1492 | struct utimbuf utbuf; |
1493 | #else |
a687059c |
1494 | struct { |
dd2821f6 |
1495 | Time_t actime; |
1496 | Time_t modtime; |
a687059c |
1497 | } utbuf; |
663a0e37 |
1498 | #endif |
a687059c |
1499 | |
afd9f252 |
1500 | Zero(&utbuf, sizeof utbuf, char); |
517844ec |
1501 | #ifdef BIG_TIME |
dd2821f6 |
1502 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1503 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ |
517844ec |
1504 | #else |
dd2821f6 |
1505 | utbuf.actime = (Time_t)SvIVx(*++mark); /* time accessed */ |
1506 | utbuf.modtime = (Time_t)SvIVx(*++mark); /* time modified */ |
517844ec |
1507 | #endif |
20408e3c |
1508 | APPLY_TAINT_PROPER(); |
79072805 |
1509 | tot = sp - mark; |
1510 | while (++mark <= sp) { |
2d8e6c8d |
1511 | char *name = SvPVx(*mark, n_a); |
20408e3c |
1512 | APPLY_TAINT_PROPER(); |
1513 | if (PerlLIO_utime(name, &utbuf)) |
a687059c |
1514 | tot--; |
1515 | } |
a687059c |
1516 | } |
1517 | else |
79072805 |
1518 | tot = 0; |
a687059c |
1519 | break; |
a0d0e21e |
1520 | #endif |
a687059c |
1521 | } |
1522 | return tot; |
20408e3c |
1523 | |
20408e3c |
1524 | #undef APPLY_TAINT_PROPER |
a687059c |
1525 | } |
1526 | |
1527 | /* Do the permissions allow some operation? Assumes statcache already set. */ |
a0d0e21e |
1528 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae |
1529 | bool |
1530 | Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp) |
1531 | /* Note: we use `effective' both for uids and gids. |
1532 | * Here we are betting on Uid_t being equal or wider than Gid_t. */ |
a687059c |
1533 | { |
bee1dbe2 |
1534 | #ifdef DOSISH |
fe14fcc3 |
1535 | /* [Comments and code from Len Reed] |
1536 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write |
1537 | * to write-protected files. The execute permission bit is set |
1538 | * by the Miscrosoft C library stat() function for the following: |
1539 | * .exe files |
1540 | * .com files |
1541 | * .bat files |
1542 | * directories |
1543 | * All files and directories are readable. |
1544 | * Directories and special files, e.g. "CON", cannot be |
1545 | * write-protected. |
1546 | * [Comment by Tom Dinger -- a directory can have the write-protect |
1547 | * bit set in the file system, but DOS permits changes to |
1548 | * the directory anyway. In addition, all bets are off |
1549 | * here for networked software, such as Novell and |
1550 | * Sun's PC-NFS.] |
1551 | */ |
1552 | |
bee1dbe2 |
1553 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1554 | * too so it will actually look into the files for magic numbers |
1555 | */ |
7f4774ae |
1556 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 |
1557 | |
55497cff |
1558 | #else /* ! DOSISH */ |
3280af22 |
1559 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
7f4774ae |
1560 | if (mode == S_IXUSR) { |
c623bd54 |
1561 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c |
1562 | return TRUE; |
1563 | } |
1564 | else |
1565 | return TRUE; /* root reads and writes anything */ |
1566 | return FALSE; |
1567 | } |
3280af22 |
1568 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
7f4774ae |
1569 | if (statbufp->st_mode & mode) |
a687059c |
1570 | return TRUE; /* ok as "user" */ |
1571 | } |
d8eceb89 |
1572 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae |
1573 | if (statbufp->st_mode & mode >> 3) |
a687059c |
1574 | return TRUE; /* ok as "group" */ |
1575 | } |
7f4774ae |
1576 | else if (statbufp->st_mode & mode >> 6) |
a687059c |
1577 | return TRUE; /* ok as "other" */ |
1578 | return FALSE; |
55497cff |
1579 | #endif /* ! DOSISH */ |
a687059c |
1580 | } |
a0d0e21e |
1581 | #endif /* ! VMS */ |
a687059c |
1582 | |
d8eceb89 |
1583 | bool |
1584 | Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) |
a687059c |
1585 | { |
cd39f2b6 |
1586 | #ifdef MACOS_TRADITIONAL |
1587 | /* This is simply not correct for AppleShare, but fix it yerself. */ |
1588 | return TRUE; |
1589 | #else |
3280af22 |
1590 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c |
1591 | return TRUE; |
fe14fcc3 |
1592 | #ifdef HAS_GETGROUPS |
a687059c |
1593 | #ifndef NGROUPS |
1594 | #define NGROUPS 32 |
1595 | #endif |
1596 | { |
a0d0e21e |
1597 | Groups_t gary[NGROUPS]; |
79072805 |
1598 | I32 anum; |
a687059c |
1599 | |
1600 | anum = getgroups(NGROUPS,gary); |
1601 | while (--anum >= 0) |
1602 | if (gary[anum] == testgid) |
1603 | return TRUE; |
1604 | } |
1605 | #endif |
1606 | return FALSE; |
cd39f2b6 |
1607 | #endif |
a687059c |
1608 | } |
c2ab57d4 |
1609 | |
fe14fcc3 |
1610 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 |
1611 | |
79072805 |
1612 | I32 |
864dbfa3 |
1613 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1614 | { |
11343788 |
1615 | dTHR; |
c2ab57d4 |
1616 | key_t key; |
79072805 |
1617 | I32 n, flags; |
c2ab57d4 |
1618 | |
463ee0b2 |
1619 | key = (key_t)SvNVx(*++mark); |
1620 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); |
1621 | flags = SvIVx(*++mark); |
748a9306 |
1622 | SETERRNO(0,0); |
c2ab57d4 |
1623 | switch (optype) |
1624 | { |
fe14fcc3 |
1625 | #ifdef HAS_MSG |
79072805 |
1626 | case OP_MSGGET: |
c2ab57d4 |
1627 | return msgget(key, flags); |
e5d73d77 |
1628 | #endif |
fe14fcc3 |
1629 | #ifdef HAS_SEM |
79072805 |
1630 | case OP_SEMGET: |
c2ab57d4 |
1631 | return semget(key, n, flags); |
e5d73d77 |
1632 | #endif |
fe14fcc3 |
1633 | #ifdef HAS_SHM |
79072805 |
1634 | case OP_SHMGET: |
c2ab57d4 |
1635 | return shmget(key, n, flags); |
e5d73d77 |
1636 | #endif |
fe14fcc3 |
1637 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1638 | default: |
cea2e8a9 |
1639 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1640 | #endif |
c2ab57d4 |
1641 | } |
1642 | return -1; /* should never happen */ |
1643 | } |
1644 | |
79072805 |
1645 | I32 |
864dbfa3 |
1646 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1647 | { |
11343788 |
1648 | dTHR; |
79072805 |
1649 | SV *astr; |
c2ab57d4 |
1650 | char *a; |
a0d0e21e |
1651 | I32 id, n, cmd, infosize, getinfo; |
1652 | I32 ret = -1; |
c2ab57d4 |
1653 | |
463ee0b2 |
1654 | id = SvIVx(*++mark); |
1655 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
1656 | cmd = SvIVx(*++mark); |
79072805 |
1657 | astr = *++mark; |
c2ab57d4 |
1658 | infosize = 0; |
1659 | getinfo = (cmd == IPC_STAT); |
1660 | |
1661 | switch (optype) |
1662 | { |
fe14fcc3 |
1663 | #ifdef HAS_MSG |
79072805 |
1664 | case OP_MSGCTL: |
c2ab57d4 |
1665 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1666 | infosize = sizeof(struct msqid_ds); |
1667 | break; |
e5d73d77 |
1668 | #endif |
fe14fcc3 |
1669 | #ifdef HAS_SHM |
79072805 |
1670 | case OP_SHMCTL: |
c2ab57d4 |
1671 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1672 | infosize = sizeof(struct shmid_ds); |
1673 | break; |
e5d73d77 |
1674 | #endif |
fe14fcc3 |
1675 | #ifdef HAS_SEM |
79072805 |
1676 | case OP_SEMCTL: |
39398f3f |
1677 | #ifdef Semctl |
c2ab57d4 |
1678 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1679 | infosize = sizeof(struct semid_ds); |
1680 | else if (cmd == GETALL || cmd == SETALL) |
1681 | { |
8e591e46 |
1682 | struct semid_ds semds; |
bd89102f |
1683 | union semun semun; |
1684 | |
84902520 |
1685 | semun.buf = &semds; |
c2ab57d4 |
1686 | getinfo = (cmd == GETALL); |
9b89d93d |
1687 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1688 | return -1; |
6e21c824 |
1689 | infosize = semds.sem_nsems * sizeof(short); |
1690 | /* "short" is technically wrong but much more portable |
1691 | than guessing about u_?short(_t)? */ |
c2ab57d4 |
1692 | } |
39398f3f |
1693 | #else |
cea2e8a9 |
1694 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f |
1695 | #endif |
c2ab57d4 |
1696 | break; |
e5d73d77 |
1697 | #endif |
fe14fcc3 |
1698 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 |
1699 | default: |
cea2e8a9 |
1700 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 |
1701 | #endif |
c2ab57d4 |
1702 | } |
1703 | |
1704 | if (infosize) |
1705 | { |
a0d0e21e |
1706 | STRLEN len; |
c2ab57d4 |
1707 | if (getinfo) |
1708 | { |
a0d0e21e |
1709 | SvPV_force(astr, len); |
1710 | a = SvGROW(astr, infosize+1); |
c2ab57d4 |
1711 | } |
1712 | else |
1713 | { |
463ee0b2 |
1714 | a = SvPV(astr, len); |
1715 | if (len != infosize) |
cea2e8a9 |
1716 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 |
1717 | PL_op_desc[optype], |
1718 | (unsigned long)len, |
1719 | (long)infosize); |
c2ab57d4 |
1720 | } |
1721 | } |
1722 | else |
1723 | { |
c030ccd9 |
1724 | IV i = SvIV(astr); |
56431972 |
1725 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 |
1726 | } |
748a9306 |
1727 | SETERRNO(0,0); |
c2ab57d4 |
1728 | switch (optype) |
1729 | { |
fe14fcc3 |
1730 | #ifdef HAS_MSG |
79072805 |
1731 | case OP_MSGCTL: |
bee1dbe2 |
1732 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 |
1733 | break; |
e5d73d77 |
1734 | #endif |
fe14fcc3 |
1735 | #ifdef HAS_SEM |
bd89102f |
1736 | case OP_SEMCTL: { |
39398f3f |
1737 | #ifdef Semctl |
bd89102f |
1738 | union semun unsemds; |
1739 | |
1740 | unsemds.buf = (struct semid_ds *)a; |
1741 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f |
1742 | #else |
cea2e8a9 |
1743 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f |
1744 | #endif |
bd89102f |
1745 | } |
c2ab57d4 |
1746 | break; |
e5d73d77 |
1747 | #endif |
fe14fcc3 |
1748 | #ifdef HAS_SHM |
79072805 |
1749 | case OP_SHMCTL: |
bee1dbe2 |
1750 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 |
1751 | break; |
e5d73d77 |
1752 | #endif |
c2ab57d4 |
1753 | } |
1754 | if (getinfo && ret >= 0) { |
79072805 |
1755 | SvCUR_set(astr, infosize); |
1756 | *SvEND(astr) = '\0'; |
a0d0e21e |
1757 | SvSETMAGIC(astr); |
c2ab57d4 |
1758 | } |
1759 | return ret; |
1760 | } |
1761 | |
79072805 |
1762 | I32 |
864dbfa3 |
1763 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1764 | { |
fe14fcc3 |
1765 | #ifdef HAS_MSG |
11343788 |
1766 | dTHR; |
79072805 |
1767 | SV *mstr; |
c2ab57d4 |
1768 | char *mbuf; |
79072805 |
1769 | I32 id, msize, flags; |
463ee0b2 |
1770 | STRLEN len; |
c2ab57d4 |
1771 | |
463ee0b2 |
1772 | id = SvIVx(*++mark); |
79072805 |
1773 | mstr = *++mark; |
463ee0b2 |
1774 | flags = SvIVx(*++mark); |
1775 | mbuf = SvPV(mstr, len); |
1776 | if ((msize = len - sizeof(long)) < 0) |
cea2e8a9 |
1777 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 |
1778 | SETERRNO(0,0); |
bee1dbe2 |
1779 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 |
1780 | #else |
cea2e8a9 |
1781 | Perl_croak(aTHX_ "msgsnd not implemented"); |
e5d73d77 |
1782 | #endif |
c2ab57d4 |
1783 | } |
1784 | |
79072805 |
1785 | I32 |
864dbfa3 |
1786 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1787 | { |
fe14fcc3 |
1788 | #ifdef HAS_MSG |
11343788 |
1789 | dTHR; |
79072805 |
1790 | SV *mstr; |
c2ab57d4 |
1791 | char *mbuf; |
1792 | long mtype; |
79072805 |
1793 | I32 id, msize, flags, ret; |
463ee0b2 |
1794 | STRLEN len; |
79072805 |
1795 | |
463ee0b2 |
1796 | id = SvIVx(*++mark); |
79072805 |
1797 | mstr = *++mark; |
463ee0b2 |
1798 | msize = SvIVx(*++mark); |
1799 | mtype = (long)SvIVx(*++mark); |
1800 | flags = SvIVx(*++mark); |
a0d0e21e |
1801 | SvPV_force(mstr, len); |
1802 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
1803 | |
748a9306 |
1804 | SETERRNO(0,0); |
bee1dbe2 |
1805 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 |
1806 | if (ret >= 0) { |
79072805 |
1807 | SvCUR_set(mstr, sizeof(long)+ret); |
1808 | *SvEND(mstr) = '\0'; |
c2ab57d4 |
1809 | } |
1810 | return ret; |
e5d73d77 |
1811 | #else |
cea2e8a9 |
1812 | Perl_croak(aTHX_ "msgrcv not implemented"); |
e5d73d77 |
1813 | #endif |
c2ab57d4 |
1814 | } |
1815 | |
79072805 |
1816 | I32 |
864dbfa3 |
1817 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 |
1818 | { |
fe14fcc3 |
1819 | #ifdef HAS_SEM |
11343788 |
1820 | dTHR; |
79072805 |
1821 | SV *opstr; |
c2ab57d4 |
1822 | char *opbuf; |
463ee0b2 |
1823 | I32 id; |
1824 | STRLEN opsize; |
c2ab57d4 |
1825 | |
463ee0b2 |
1826 | id = SvIVx(*++mark); |
79072805 |
1827 | opstr = *++mark; |
463ee0b2 |
1828 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 |
1829 | if (opsize < sizeof(struct sembuf) |
1830 | || (opsize % sizeof(struct sembuf)) != 0) { |
748a9306 |
1831 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 |
1832 | return -1; |
1833 | } |
748a9306 |
1834 | SETERRNO(0,0); |
6e21c824 |
1835 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 |
1836 | #else |
cea2e8a9 |
1837 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 |
1838 | #endif |
c2ab57d4 |
1839 | } |
1840 | |
79072805 |
1841 | I32 |
864dbfa3 |
1842 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 |
1843 | { |
fe14fcc3 |
1844 | #ifdef HAS_SHM |
11343788 |
1845 | dTHR; |
79072805 |
1846 | SV *mstr; |
c2ab57d4 |
1847 | char *mbuf, *shm; |
79072805 |
1848 | I32 id, mpos, msize; |
463ee0b2 |
1849 | STRLEN len; |
c2ab57d4 |
1850 | struct shmid_ds shmds; |
c2ab57d4 |
1851 | |
463ee0b2 |
1852 | id = SvIVx(*++mark); |
79072805 |
1853 | mstr = *++mark; |
463ee0b2 |
1854 | mpos = SvIVx(*++mark); |
1855 | msize = SvIVx(*++mark); |
748a9306 |
1856 | SETERRNO(0,0); |
c2ab57d4 |
1857 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1858 | return -1; |
1859 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { |
748a9306 |
1860 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 |
1861 | return -1; |
1862 | } |
8ac85365 |
1863 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 |
1864 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1865 | return -1; |
79072805 |
1866 | if (optype == OP_SHMREAD) { |
a0d0e21e |
1867 | SvPV_force(mstr, len); |
1868 | mbuf = SvGROW(mstr, msize+1); |
1869 | |
bee1dbe2 |
1870 | Copy(shm + mpos, mbuf, msize, char); |
79072805 |
1871 | SvCUR_set(mstr, msize); |
1872 | *SvEND(mstr) = '\0'; |
a0d0e21e |
1873 | SvSETMAGIC(mstr); |
c2ab57d4 |
1874 | } |
1875 | else { |
79072805 |
1876 | I32 n; |
c2ab57d4 |
1877 | |
a0d0e21e |
1878 | mbuf = SvPV(mstr, len); |
463ee0b2 |
1879 | if ((n = len) > msize) |
c2ab57d4 |
1880 | n = msize; |
bee1dbe2 |
1881 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 |
1882 | if (n < msize) |
bee1dbe2 |
1883 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 |
1884 | } |
1885 | return shmdt(shm); |
e5d73d77 |
1886 | #else |
cea2e8a9 |
1887 | Perl_croak(aTHX_ "shm I/O not implemented"); |
e5d73d77 |
1888 | #endif |
c2ab57d4 |
1889 | } |
1890 | |
fe14fcc3 |
1891 | #endif /* SYSV IPC */ |
4e35701f |
1892 | |