Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
770526c1 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others |
a687059c | 5 | * |
6e21c824 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
a687059c | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "Far below them they saw the white waters pour into a foaming bowl, and | |
13 | * then swirl darkly about a deep oval basin in the rocks, until they found | |
14 | * their way out again through a narrow gate, and flowed away, fuming and | |
15 | * chattering, into calmer and more level reaches." | |
a687059c LW |
16 | */ |
17 | ||
166f8a29 DM |
18 | /* This file contains functions that do the actual I/O on behalf of ops. |
19 | * For example, pp_print() calls the do_print() function in this file for | |
20 | * each argument needing printing. | |
21 | */ | |
22 | ||
a687059c | 23 | #include "EXTERN.h" |
864dbfa3 | 24 | #define PERL_IN_DOIO_C |
a687059c LW |
25 | #include "perl.h" |
26 | ||
fe14fcc3 | 27 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
aec308ec | 28 | #ifndef HAS_SEM |
c2ab57d4 | 29 | #include <sys/ipc.h> |
aec308ec | 30 | #endif |
fe14fcc3 | 31 | #ifdef HAS_MSG |
c2ab57d4 | 32 | #include <sys/msg.h> |
e5d73d77 | 33 | #endif |
fe14fcc3 | 34 | #ifdef HAS_SHM |
c2ab57d4 | 35 | #include <sys/shm.h> |
a0d0e21e | 36 | # ifndef HAS_SHMAT_PROTOTYPE |
20ce7b12 | 37 | extern Shmat_t shmat (int, char *, int); |
a0d0e21e | 38 | # endif |
c2ab57d4 | 39 | #endif |
e5d73d77 | 40 | #endif |
c2ab57d4 | 41 | |
663a0e37 | 42 | #ifdef I_UTIME |
3730b96e | 43 | # if defined(_MSC_VER) || defined(__MINGW32__) |
3fe9a6f1 | 44 | # include <sys/utime.h> |
45 | # else | |
46 | # include <utime.h> | |
47 | # endif | |
663a0e37 | 48 | #endif |
85aff577 | 49 | |
85aff577 CS |
50 | #ifdef O_EXCL |
51 | # define OPEN_EXCL O_EXCL | |
52 | #else | |
53 | # define OPEN_EXCL 0 | |
54 | #endif | |
a687059c | 55 | |
76121258 | 56 | #include <signal.h> |
76121258 | 57 | |
a687059c | 58 | bool |
6170680b IZ |
59 | Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw, |
60 | int rawmode, int rawperm, PerlIO *supplied_fp) | |
61 | { | |
a567e93b NIS |
62 | return do_openn(gv, name, len, as_raw, rawmode, rawperm, |
63 | supplied_fp, (SV **) NULL, 0); | |
6170680b IZ |
64 | } |
65 | ||
66 | bool | |
67 | Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw, | |
68 | int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, | |
69 | I32 num_svs) | |
a687059c | 70 | { |
a567e93b NIS |
71 | return do_openn(gv, name, len, as_raw, rawmode, rawperm, |
72 | supplied_fp, &svs, 1); | |
73 | } | |
74 | ||
75 | bool | |
76 | Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, | |
77 | int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, | |
78 | I32 num_svs) | |
79 | { | |
a0d0e21e | 80 | register IO *io = GvIOn(gv); |
760ac839 LW |
81 | PerlIO *saveifp = Nullfp; |
82 | PerlIO *saveofp = Nullfp; | |
ee518936 | 83 | int savefd = -1; |
9f37169a | 84 | char savetype = IoTYPE_CLOSED; |
c07a80fd | 85 | int writing = 0; |
760ac839 | 86 | PerlIO *fp; |
c07a80fd | 87 | int fd; |
88 | int result; | |
3500f679 | 89 | bool was_fdopen = FALSE; |
16fe6d59 | 90 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
b931b1d9 | 91 | char *type = NULL; |
ee518936 NIS |
92 | char mode[8]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */ |
93 | SV *namesv; | |
a687059c | 94 | |
b931b1d9 | 95 | Zero(mode,sizeof(mode),char); |
3280af22 | 96 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 97 | |
b931b1d9 | 98 | /* Collect default raw/crlf info from the op */ |
16fe6d59 | 99 | if (PL_op && PL_op->op_type == OP_OPEN) { |
c2be40b1 | 100 | /* set up IO layers */ |
16fe6d59 GS |
101 | U8 flags = PL_op->op_private; |
102 | in_raw = (flags & OPpOPEN_IN_RAW); | |
103 | in_crlf = (flags & OPpOPEN_IN_CRLF); | |
104 | out_raw = (flags & OPpOPEN_OUT_RAW); | |
105 | out_crlf = (flags & OPpOPEN_OUT_CRLF); | |
106 | } | |
107 | ||
b931b1d9 | 108 | /* If currently open - close before we re-open */ |
a0d0e21e | 109 | if (IoIFP(io)) { |
760ac839 | 110 | fd = PerlIO_fileno(IoIFP(io)); |
ee518936 NIS |
111 | if (IoTYPE(io) == IoTYPE_STD) { |
112 | /* This is a clone of one of STD* handles */ | |
c2ab57d4 | 113 | result = 0; |
ee518936 NIS |
114 | } |
115 | else if (fd >= 0 && fd <= PL_maxsysfd) { | |
116 | /* This is one of the original STD* handles */ | |
117 | saveifp = IoIFP(io); | |
118 | saveofp = IoOFP(io); | |
8990e307 | 119 | savetype = IoTYPE(io); |
ee518936 NIS |
120 | savefd = fd; |
121 | result = 0; | |
6e21c824 | 122 | } |
50952442 | 123 | else if (IoTYPE(io) == IoTYPE_PIPE) |
3028581b | 124 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 LW |
125 | else if (IoIFP(io) != IoOFP(io)) { |
126 | if (IoOFP(io)) { | |
760ac839 | 127 | result = PerlIO_close(IoOFP(io)); |
6170680b | 128 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 LW |
129 | } |
130 | else | |
760ac839 | 131 | result = PerlIO_close(IoIFP(io)); |
a687059c | 132 | } |
a687059c | 133 | else |
760ac839 | 134 | result = PerlIO_close(IoIFP(io)); |
ee518936 NIS |
135 | if (result == EOF && fd > PL_maxsysfd) { |
136 | /* Why is this not Perl_warn*() call ? */ | |
bf49b057 | 137 | PerlIO_printf(Perl_error_log, |
6170680b IZ |
138 | "Warning: unable to close filehandle %s properly.\n", |
139 | GvENAME(gv)); | |
ee518936 | 140 | } |
8990e307 | 141 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c | 142 | } |
c07a80fd | 143 | |
144 | if (as_raw) { | |
b931b1d9 | 145 | /* sysopen style args, i.e. integer mode and permissions */ |
ee518936 | 146 | STRLEN ix = 0; |
3dccc55c JH |
147 | int appendtrunc = |
148 | 0 | |
d1da7611 | 149 | #ifdef O_APPEND /* Not fully portable. */ |
3dccc55c | 150 | |O_APPEND |
d1da7611 JH |
151 | #endif |
152 | #ifdef O_TRUNC /* Not fully portable. */ | |
3dccc55c | 153 | |O_TRUNC |
d1da7611 | 154 | #endif |
3dccc55c JH |
155 | ; |
156 | int modifyingmode = | |
157 | O_WRONLY|O_RDWR|O_CREAT|appendtrunc; | |
158 | int ismodifying; | |
159 | ||
160 | if (num_svs != 0) { | |
161 | Perl_croak(aTHX_ "panic: sysopen with multiple args"); | |
162 | } | |
163 | /* It's not always | |
164 | ||
165 | O_RDONLY 0 | |
166 | O_WRONLY 1 | |
167 | O_RDWR 2 | |
168 | ||
169 | It might be (in OS/390 and Mac OS Classic it is) | |
170 | ||
171 | O_WRONLY 1 | |
172 | O_RDONLY 2 | |
173 | O_RDWR 3 | |
174 | ||
175 | This means that simple & with O_RDWR would look | |
176 | like O_RDONLY is present. Therefore we have to | |
177 | be more careful. | |
178 | */ | |
179 | if ((ismodifying = (rawmode & modifyingmode))) { | |
180 | if ((ismodifying & O_WRONLY) == O_WRONLY || | |
181 | (ismodifying & O_RDWR) == O_RDWR || | |
182 | (ismodifying & (O_CREAT|appendtrunc))) | |
183 | TAINT_PROPER("sysopen"); | |
184 | } | |
3b6c1aba | 185 | mode[ix++] = IoTYPE_NUMERIC; /* Marker to openn to use numeric "sysopen" */ |
b931b1d9 | 186 | |
09458382 | 187 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
b94c04ac | 188 | rawmode |= O_LARGEFILE; /* Transparently largefiley. */ |
5ff3f7a4 GS |
189 | #endif |
190 | ||
06c7082d | 191 | IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing); |
ee518936 NIS |
192 | |
193 | namesv = sv_2mortal(newSVpvn(name,strlen(name))); | |
194 | num_svs = 1; | |
195 | svp = &namesv; | |
1141d9f8 | 196 | type = Nullch; |
b94c04ac | 197 | fp = PerlIO_openn(aTHX_ type, mode, -1, rawmode, rawperm, NULL, num_svs, svp); |
a687059c | 198 | } |
c07a80fd | 199 | else { |
b931b1d9 | 200 | /* Regular (non-sys) open */ |
faecd977 | 201 | char *oname = name; |
faecd977 | 202 | STRLEN olen = len; |
b931b1d9 NIS |
203 | char *tend; |
204 | int dodup = 0; | |
ecdeb87c | 205 | PerlIO *that_fp = NULL; |
c07a80fd | 206 | |
faecd977 | 207 | type = savepvn(name, len); |
b931b1d9 | 208 | tend = type+len; |
faecd977 | 209 | SAVEFREEPV(type); |
eb649f83 AMS |
210 | |
211 | /* Lose leading and trailing white space */ | |
212 | /*SUPPRESS 530*/ | |
213 | for (; isSPACE(*type); type++) ; | |
214 | while (tend > type && isSPACE(tend[-1])) | |
215 | *--tend = '\0'; | |
216 | ||
6170680b | 217 | if (num_svs) { |
c2be40b1 | 218 | /* New style explicit name, type is just mode and layer info */ |
fe9745bf | 219 | STRLEN l = 0; |
9a869a14 RGS |
220 | #ifdef USE_STDIO |
221 | if (SvROK(*svp) && !strchr(name,'&')) { | |
222 | if (ckWARN(WARN_IO)) | |
223 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
224 | "Can't open a reference"); | |
93189314 | 225 | SETERRNO(EINVAL, LIB_INVARG); |
9a869a14 RGS |
226 | goto say_false; |
227 | } | |
228 | #endif /* USE_STDIO */ | |
f6c77cf1 | 229 | name = SvOK(*svp) ? SvPV(*svp, l) : ""; |
faecd977 GS |
230 | len = (I32)l; |
231 | name = savepvn(name, len); | |
232 | SAVEFREEPV(name); | |
6170680b | 233 | } |
faecd977 | 234 | else { |
faecd977 | 235 | name = type; |
b931b1d9 | 236 | len = tend-type; |
faecd977 | 237 | } |
6170680b | 238 | IoTYPE(io) = *type; |
516a5887 | 239 | if ((*type == IoTYPE_RDWR) && /* scary */ |
01a8ea99 | 240 | (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) && |
516a5887 | 241 | ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) { |
c2be40b1 | 242 | TAINT_PROPER("open"); |
6170680b | 243 | mode[1] = *type++; |
c07a80fd | 244 | writing = 1; |
a687059c | 245 | } |
c07a80fd | 246 | |
9f37169a | 247 | if (*type == IoTYPE_PIPE) { |
b931b1d9 NIS |
248 | if (num_svs) { |
249 | if (type[1] != IoTYPE_STD) { | |
c2be40b1 | 250 | unknown_open_mode: |
b931b1d9 NIS |
251 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); |
252 | } | |
253 | type++; | |
6170680b | 254 | } |
c07a80fd | 255 | /*SUPPRESS 530*/ |
b931b1d9 | 256 | for (type++; isSPACE(*type); type++) ; |
faecd977 | 257 | if (!num_svs) { |
6170680b | 258 | name = type; |
b931b1d9 | 259 | len = tend-type; |
faecd977 | 260 | } |
4a7d1889 NIS |
261 | if (*name == '\0') { |
262 | /* command is missing 19990114 */ | |
06eaf0bc | 263 | if (ckWARN(WARN_PIPE)) |
9014280d | 264 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc GS |
265 | errno = EPIPE; |
266 | goto say_false; | |
267 | } | |
770526c1 | 268 | if ((*name == '-' && name[1] == '\0') || num_svs) |
c07a80fd | 269 | TAINT_ENV(); |
270 | TAINT_PROPER("piped open"); | |
b931b1d9 | 271 | if (!num_svs && name[len-1] == '|') { |
faecd977 | 272 | name[--len] = '\0' ; |
599cee73 | 273 | if (ckWARN(WARN_PIPE)) |
9014280d | 274 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe"); |
7b8d334a | 275 | } |
a1d180c4 | 276 | mode[0] = 'w'; |
c07a80fd | 277 | writing = 1; |
a1d180c4 NIS |
278 | if (out_raw) |
279 | strcat(mode, "b"); | |
280 | else if (out_crlf) | |
281 | strcat(mode, "t"); | |
4a7d1889 NIS |
282 | if (num_svs > 1) { |
283 | fp = PerlProc_popen_list(mode, num_svs, svp); | |
284 | } | |
285 | else { | |
286 | fp = PerlProc_popen(name,mode); | |
287 | } | |
1771866f NIS |
288 | if (num_svs) { |
289 | if (*type) { | |
290 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
291 | goto say_false; | |
292 | } | |
293 | } | |
294 | } | |
c2be40b1 | 295 | } /* IoTYPE_PIPE */ |
9f37169a | 296 | else if (*type == IoTYPE_WRONLY) { |
c07a80fd | 297 | TAINT_PROPER("open"); |
6170680b | 298 | type++; |
9f37169a JH |
299 | if (*type == IoTYPE_WRONLY) { |
300 | /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ | |
50952442 | 301 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b | 302 | type++; |
a0d0e21e | 303 | } |
ee518936 | 304 | else { |
c07a80fd | 305 | mode[0] = 'w'; |
ee518936 | 306 | } |
c07a80fd | 307 | writing = 1; |
308 | ||
16fe6d59 GS |
309 | if (out_raw) |
310 | strcat(mode, "b"); | |
311 | else if (out_crlf) | |
312 | strcat(mode, "t"); | |
313 | ||
6170680b | 314 | if (*type == '&') { |
c07a80fd | 315 | duplicity: |
ecdeb87c | 316 | dodup = PERLIO_DUP_FD; |
e620cd72 NIS |
317 | type++; |
318 | if (*type == '=') { | |
c07a80fd | 319 | dodup = 0; |
e620cd72 | 320 | type++; |
4a7d1889 | 321 | } |
ee518936 | 322 | if (!num_svs && !*type && supplied_fp) { |
4a7d1889 | 323 | /* "<+&" etc. is used by typemaps */ |
c07a80fd | 324 | fp = supplied_fp; |
ee518936 | 325 | } |
a0d0e21e | 326 | else { |
e620cd72 NIS |
327 | if (num_svs > 1) { |
328 | Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); | |
329 | } | |
54edfe98 NIS |
330 | /*SUPPRESS 530*/ |
331 | for (; isSPACE(*type); type++) ; | |
1771866f | 332 | if (num_svs && (SvIOK(*svp) || (SvPOK(*svp) && looks_like_number(*svp)))) { |
e620cd72 | 333 | fd = SvUV(*svp); |
24a7a40d | 334 | num_svs = 0; |
ee518936 | 335 | } |
e620cd72 | 336 | else if (isDIGIT(*type)) { |
e620cd72 NIS |
337 | fd = atoi(type); |
338 | } | |
c07a80fd | 339 | else { |
340 | IO* thatio; | |
e620cd72 NIS |
341 | if (num_svs) { |
342 | thatio = sv_2io(*svp); | |
343 | } | |
344 | else { | |
345 | GV *thatgv; | |
e620cd72 NIS |
346 | thatgv = gv_fetchpv(type,FALSE,SVt_PVIO); |
347 | thatio = GvIO(thatgv); | |
348 | } | |
c07a80fd | 349 | if (!thatio) { |
6e21c824 | 350 | #ifdef EINVAL |
93189314 | 351 | SETERRNO(EINVAL,SS_IVCHAN); |
6e21c824 | 352 | #endif |
c07a80fd | 353 | goto say_false; |
354 | } | |
f4e789af | 355 | if ((that_fp = IoIFP(thatio))) { |
7211d486 JH |
356 | /* Flush stdio buffer before dup. --mjd |
357 | * Unfortunately SEEK_CURing 0 seems to | |
358 | * be optimized away on most platforms; | |
359 | * only Solaris and Linux seem to flush | |
360 | * on that. --jhi */ | |
2c534a3f NC |
361 | #ifdef USE_SFIO |
362 | /* sfio fails to clear error on next | |
363 | sfwrite, contrary to documentation. | |
364 | -- Nick Clark */ | |
ecdeb87c NIS |
365 | if (PerlIO_seek(that_fp, 0, SEEK_CUR) == -1) |
366 | PerlIO_clearerr(that_fp); | |
2c534a3f | 367 | #endif |
7211d486 JH |
368 | /* On the other hand, do all platforms |
369 | * take gracefully to flushing a read-only | |
370 | * filehandle? Perhaps we should do | |
371 | * fsetpos(src)+fgetpos(dst)? --nik */ | |
ecdeb87c NIS |
372 | PerlIO_flush(that_fp); |
373 | fd = PerlIO_fileno(that_fp); | |
0759c907 JH |
374 | /* When dup()ing STDIN, STDOUT or STDERR |
375 | * explicitly set appropriate access mode */ | |
f4e789af NC |
376 | if (that_fp == PerlIO_stdout() |
377 | || that_fp == PerlIO_stderr()) | |
0759c907 | 378 | IoTYPE(io) = IoTYPE_WRONLY; |
f4e789af | 379 | else if (that_fp == PerlIO_stdin()) |
0759c907 JH |
380 | IoTYPE(io) = IoTYPE_RDONLY; |
381 | /* When dup()ing a socket, say result is | |
382 | * one as well */ | |
383 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) | |
50952442 | 384 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd | 385 | } |
386 | else | |
387 | fd = -1; | |
a0d0e21e | 388 | } |
ee518936 | 389 | if (!num_svs) |
1141d9f8 | 390 | type = Nullch; |
ecdeb87c NIS |
391 | if (that_fp) { |
392 | fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup); | |
393 | } | |
394 | else { | |
c07a80fd | 395 | if (dodup) |
ecdeb87c NIS |
396 | fd = PerlLIO_dup(fd); |
397 | else | |
398 | was_fdopen = TRUE; | |
399 | if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) { | |
400 | if (dodup) | |
401 | PerlLIO_close(fd); | |
402 | } | |
faecd977 | 403 | } |
c07a80fd | 404 | } |
ee518936 | 405 | } /* & */ |
c07a80fd | 406 | else { |
407 | /*SUPPRESS 530*/ | |
6170680b | 408 | for (; isSPACE(*type); type++) ; |
b931b1d9 NIS |
409 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
410 | /*SUPPRESS 530*/ | |
411 | type++; | |
760ac839 | 412 | fp = PerlIO_stdout(); |
50952442 | 413 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb NIS |
414 | if (num_svs > 1) { |
415 | Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD); | |
416 | } | |
c07a80fd | 417 | } |
418 | else { | |
ee518936 NIS |
419 | if (!num_svs) { |
420 | namesv = sv_2mortal(newSVpvn(type,strlen(type))); | |
421 | num_svs = 1; | |
422 | svp = &namesv; | |
1141d9f8 | 423 | type = Nullch; |
ee518936 | 424 | } |
6e60e805 | 425 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); |
c07a80fd | 426 | } |
ee518936 | 427 | } /* !& */ |
7e72d509 JH |
428 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
429 | goto unknown_open_mode; | |
c2be40b1 | 430 | } /* IoTYPE_WRONLY */ |
9f37169a | 431 | else if (*type == IoTYPE_RDONLY) { |
c07a80fd | 432 | /*SUPPRESS 530*/ |
6170680b | 433 | for (type++; isSPACE(*type); type++) ; |
bf38876a | 434 | mode[0] = 'r'; |
16fe6d59 GS |
435 | if (in_raw) |
436 | strcat(mode, "b"); | |
437 | else if (in_crlf) | |
438 | strcat(mode, "t"); | |
439 | ||
6170680b | 440 | if (*type == '&') { |
bf38876a | 441 | goto duplicity; |
6170680b | 442 | } |
b931b1d9 NIS |
443 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
444 | /*SUPPRESS 530*/ | |
445 | type++; | |
760ac839 | 446 | fp = PerlIO_stdin(); |
50952442 | 447 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb NIS |
448 | if (num_svs > 1) { |
449 | Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD); | |
450 | } | |
a687059c | 451 | } |
ee518936 NIS |
452 | else { |
453 | if (!num_svs) { | |
454 | namesv = sv_2mortal(newSVpvn(type,strlen(type))); | |
455 | num_svs = 1; | |
456 | svp = &namesv; | |
1141d9f8 | 457 | type = Nullch; |
ee518936 | 458 | } |
6e60e805 | 459 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); |
ee518936 | 460 | } |
7e72d509 JH |
461 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
462 | goto unknown_open_mode; | |
c2be40b1 JH |
463 | } /* IoTYPE_RDONLY */ |
464 | else if ((num_svs && /* '-|...' or '...|' */ | |
465 | type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || | |
b931b1d9 | 466 | (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { |
6170680b | 467 | if (num_svs) { |
b931b1d9 | 468 | type += 2; /* skip over '-|' */ |
6170680b IZ |
469 | } |
470 | else { | |
b931b1d9 NIS |
471 | *--tend = '\0'; |
472 | while (tend > type && isSPACE(tend[-1])) | |
473 | *--tend = '\0'; | |
6170680b IZ |
474 | /*SUPPRESS 530*/ |
475 | for (; isSPACE(*type); type++) ; | |
476 | name = type; | |
b931b1d9 | 477 | len = tend-type; |
6170680b | 478 | } |
4a7d1889 NIS |
479 | if (*name == '\0') { |
480 | /* command is missing 19990114 */ | |
06eaf0bc | 481 | if (ckWARN(WARN_PIPE)) |
9014280d | 482 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc GS |
483 | errno = EPIPE; |
484 | goto say_false; | |
485 | } | |
770526c1 | 486 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
79072805 LW |
487 | TAINT_ENV(); |
488 | TAINT_PROPER("piped open"); | |
a1d180c4 NIS |
489 | mode[0] = 'r'; |
490 | if (in_raw) | |
491 | strcat(mode, "b"); | |
492 | else if (in_crlf) | |
493 | strcat(mode, "t"); | |
4a7d1889 NIS |
494 | if (num_svs > 1) { |
495 | fp = PerlProc_popen_list(mode,num_svs,svp); | |
496 | } | |
e620cd72 | 497 | else { |
4a7d1889 NIS |
498 | fp = PerlProc_popen(name,mode); |
499 | } | |
50952442 | 500 | IoTYPE(io) = IoTYPE_PIPE; |
1771866f NIS |
501 | if (num_svs) { |
502 | for (; isSPACE(*type); type++) ; | |
503 | if (*type) { | |
504 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
505 | goto say_false; | |
506 | } | |
507 | } | |
508 | } | |
a687059c | 509 | } |
c2be40b1 | 510 | else { /* layer(Args) */ |
6170680b | 511 | if (num_svs) |
c2be40b1 | 512 | goto unknown_open_mode; |
6170680b | 513 | name = type; |
50952442 | 514 | IoTYPE(io) = IoTYPE_RDONLY; |
99b89507 LW |
515 | /*SUPPRESS 530*/ |
516 | for (; isSPACE(*name); name++) ; | |
88b61e10 NIS |
517 | mode[0] = 'r'; |
518 | if (in_raw) | |
519 | strcat(mode, "b"); | |
520 | else if (in_crlf) | |
521 | strcat(mode, "t"); | |
770526c1 | 522 | if (*name == '-' && name[1] == '\0') { |
760ac839 | 523 | fp = PerlIO_stdin(); |
50952442 | 524 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 525 | } |
16fe6d59 | 526 | else { |
ee518936 NIS |
527 | if (!num_svs) { |
528 | namesv = sv_2mortal(newSVpvn(type,strlen(type))); | |
529 | num_svs = 1; | |
530 | svp = &namesv; | |
1141d9f8 | 531 | type = Nullch; |
ee518936 | 532 | } |
6e60e805 | 533 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); |
16fe6d59 | 534 | } |
a687059c LW |
535 | } |
536 | } | |
bee1dbe2 | 537 | if (!fp) { |
50952442 | 538 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) |
9014280d | 539 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); |
6e21c824 | 540 | goto say_false; |
bee1dbe2 | 541 | } |
a00b5bd3 NIS |
542 | |
543 | if (ckWARN(WARN_IO)) { | |
544 | if ((IoTYPE(io) == IoTYPE_RDONLY) && | |
545 | (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { | |
9014280d | 546 | Perl_warner(aTHX_ packWARN(WARN_IO), |
97828cef RGS |
547 | "Filehandle STD%s reopened as %s only for input", |
548 | ((fp == PerlIO_stdout()) ? "OUT" : "ERR"), | |
549 | GvENAME(gv)); | |
a00b5bd3 | 550 | } |
ee518936 | 551 | else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { |
9014280d | 552 | Perl_warner(aTHX_ packWARN(WARN_IO), |
97828cef RGS |
553 | "Filehandle STDIN reopened as %s only for output", |
554 | GvENAME(gv)); | |
a00b5bd3 NIS |
555 | } |
556 | } | |
557 | ||
e99cca91 | 558 | fd = PerlIO_fileno(fp); |
e934609f JH |
559 | /* If there is no fd (e.g. PerlIO::scalar) assume it isn't a |
560 | * socket - this covers PerlIO::scalar - otherwise unless we "know" the | |
e99cca91 NIS |
561 | * type probe for socket-ness. |
562 | */ | |
563 | if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) { | |
564 | if (PerlLIO_fstat(fd,&PL_statbuf) < 0) { | |
565 | /* If PerlIO claims to have fd we had better be able to fstat() it. */ | |
566 | (void) PerlIO_close(fp); | |
6e21c824 | 567 | goto say_false; |
a687059c | 568 | } |
7114a2d2 | 569 | #ifndef PERL_MICRO |
3280af22 | 570 | if (S_ISSOCK(PL_statbuf.st_mode)) |
50952442 | 571 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 LW |
572 | #ifdef HAS_SOCKET |
573 | else if ( | |
c623bd54 | 574 | #ifdef S_IFMT |
3280af22 | 575 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 | 576 | #else |
b28d0864 | 577 | !PL_statbuf.st_mode |
99b89507 | 578 | #endif |
0759c907 JH |
579 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
580 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ | |
581 | ) { /* on OS's that return 0 on fstat()ed pipe */ | |
e99cca91 NIS |
582 | char tmpbuf[256]; |
583 | Sock_size_t buflen = sizeof tmpbuf; | |
584 | if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0 | |
585 | || errno != ENOTSOCK) | |
586 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ | |
587 | /* but some return 0 for streams too, sigh */ | |
99b89507 | 588 | } |
e99cca91 | 589 | #endif /* HAS_SOCKET */ |
7114a2d2 | 590 | #endif /* !PERL_MICRO */ |
a687059c | 591 | } |
e99cca91 NIS |
592 | |
593 | /* Eeek - FIXME !!! | |
594 | * If this is a standard handle we discard all the layer stuff | |
595 | * and just dup the fd into whatever was on the handle before ! | |
596 | */ | |
597 | ||
6e21c824 | 598 | if (saveifp) { /* must use old fp? */ |
f5b9d040 | 599 | /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR |
24c23ab4 | 600 | then dup the new fileno down |
f5b9d040 | 601 | */ |
6e21c824 | 602 | if (saveofp) { |
f5b9d040 | 603 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 604 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 605 | PerlIO_close(saveofp); |
6e21c824 LW |
606 | } |
607 | } | |
6e60e805 | 608 | if (savefd != fd) { |
e934609f | 609 | /* Still a small can-of-worms here if (say) PerlIO::scalar |
ecdeb87c NIS |
610 | is assigned to (say) STDOUT - for now let dup2() fail |
611 | and provide the error | |
612 | */ | |
bd4a5668 NIS |
613 | if (PerlLIO_dup2(fd, savefd) < 0) { |
614 | (void)PerlIO_close(fp); | |
615 | goto say_false; | |
616 | } | |
d082dcd6 | 617 | #ifdef VMS |
6e60e805 | 618 | if (savefd != PerlIO_fileno(PerlIO_stdin())) { |
d0e2cf63 AMS |
619 | char newname[FILENAME_MAX+1]; |
620 | if (PerlIO_getname(fp, newname)) { | |
621 | if (fd == PerlIO_fileno(PerlIO_stdout())) | |
622 | Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname); | |
623 | if (fd == PerlIO_fileno(PerlIO_stderr())) | |
624 | Perl_vmssetuserlnm(aTHX_ "SYS$ERROR", newname); | |
625 | } | |
d082dcd6 JH |
626 | } |
627 | #endif | |
d0e2cf63 AMS |
628 | |
629 | #if !defined(WIN32) | |
630 | /* PL_fdpid isn't used on Windows, so avoid this useless work. | |
631 | * XXX Probably the same for a lot of other places. */ | |
632 | { | |
633 | Pid_t pid; | |
634 | SV *sv; | |
635 | ||
636 | LOCK_FDPID_MUTEX; | |
637 | sv = *av_fetch(PL_fdpid,fd,TRUE); | |
638 | (void)SvUPGRADE(sv, SVt_IV); | |
639 | pid = SvIVX(sv); | |
640 | SvIVX(sv) = 0; | |
641 | sv = *av_fetch(PL_fdpid,savefd,TRUE); | |
642 | (void)SvUPGRADE(sv, SVt_IV); | |
643 | SvIVX(sv) = pid; | |
644 | UNLOCK_FDPID_MUTEX; | |
645 | } | |
646 | #endif | |
647 | ||
e212fc47 AMS |
648 | if (was_fdopen) { |
649 | /* need to close fp without closing underlying fd */ | |
650 | int ofd = PerlIO_fileno(fp); | |
651 | int dupfd = PerlLIO_dup(ofd); | |
03e631df JH |
652 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
653 | /* Assume if we have F_SETFD we have F_GETFD */ | |
654 | int coe = fcntl(ofd,F_GETFD); | |
655 | #endif | |
e212fc47 AMS |
656 | PerlIO_close(fp); |
657 | PerlLIO_dup2(dupfd,ofd); | |
03e631df JH |
658 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
659 | /* The dup trick has lost close-on-exec on ofd */ | |
660 | fcntl(ofd,F_SETFD, coe); | |
661 | #endif | |
e212fc47 | 662 | PerlLIO_close(dupfd); |
ecdeb87c | 663 | } |
e212fc47 AMS |
664 | else |
665 | PerlIO_close(fp); | |
6e21c824 LW |
666 | } |
667 | fp = saveifp; | |
760ac839 | 668 | PerlIO_clearerr(fp); |
e99cca91 | 669 | fd = PerlIO_fileno(fp); |
6e21c824 | 670 | } |
a0d0e21e | 671 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
e99cca91 | 672 | if (fd >= 0) { |
a8710ca1 | 673 | int save_errno = errno; |
a8710ca1 GS |
674 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ |
675 | errno = save_errno; | |
676 | } | |
1462b684 | 677 | #endif |
8990e307 | 678 | IoIFP(io) = fp; |
b931b1d9 | 679 | |
684bef36 | 680 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a | 681 | if (writing) { |
50952442 | 682 | if (IoTYPE(io) == IoTYPE_SOCKET |
e99cca91 | 683 | || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) { |
a33cf58c | 684 | char *s = mode; |
3b6c1aba JH |
685 | if (*s == IoTYPE_IMPLICIT || *s == IoTYPE_NUMERIC) |
686 | s++; | |
a33cf58c | 687 | *s = 'w'; |
1feb1812 | 688 | if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,svp))) { |
760ac839 | 689 | PerlIO_close(fp); |
8990e307 | 690 | IoIFP(io) = Nullfp; |
6e21c824 | 691 | goto say_false; |
fe14fcc3 | 692 | } |
1462b684 LW |
693 | } |
694 | else | |
8990e307 | 695 | IoOFP(io) = fp; |
bf38876a | 696 | } |
a687059c | 697 | return TRUE; |
6e21c824 LW |
698 | |
699 | say_false: | |
8990e307 LW |
700 | IoIFP(io) = saveifp; |
701 | IoOFP(io) = saveofp; | |
702 | IoTYPE(io) = savetype; | |
6e21c824 | 703 | return FALSE; |
a687059c LW |
704 | } |
705 | ||
760ac839 | 706 | PerlIO * |
864dbfa3 | 707 | Perl_nextargv(pTHX_ register GV *gv) |
a687059c | 708 | { |
79072805 | 709 | register SV *sv; |
99b89507 | 710 | #ifndef FLEXFILENAMES |
c623bd54 LW |
711 | int filedev; |
712 | int fileino; | |
99b89507 | 713 | #endif |
761237fe JB |
714 | Uid_t fileuid; |
715 | Gid_t filegid; | |
18708f5a | 716 | IO *io = GvIOp(gv); |
fe14fcc3 | 717 | |
3280af22 NIS |
718 | if (!PL_argvoutgv) |
719 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); | |
18708f5a GS |
720 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
721 | IoFLAGS(io) &= ~IOf_START; | |
7a1c5554 GS |
722 | if (PL_inplace) { |
723 | if (!PL_argvout_stack) | |
724 | PL_argvout_stack = newAV(); | |
18708f5a | 725 | av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); |
7a1c5554 | 726 | } |
18708f5a | 727 | } |
3280af22 NIS |
728 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
729 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ | |
fe14fcc3 | 730 | #ifdef HAS_FCHMOD |
c797f2d8 DM |
731 | if (PL_lastfd != -1) |
732 | (void)fchmod(PL_lastfd,PL_filemode); | |
fe14fcc3 | 733 | #else |
b28d0864 | 734 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 LW |
735 | #endif |
736 | } | |
c797f2d8 | 737 | PL_lastfd = -1; |
3280af22 | 738 | PL_filemode = 0; |
5c501b37 JH |
739 | if (!GvAV(gv)) |
740 | return Nullfp; | |
79072805 | 741 | while (av_len(GvAV(gv)) >= 0) { |
85aff577 | 742 | STRLEN oldlen; |
79072805 | 743 | sv = av_shift(GvAV(gv)); |
8990e307 | 744 | SAVEFREESV(sv); |
79072805 LW |
745 | sv_setsv(GvSV(gv),sv); |
746 | SvSETMAGIC(GvSV(gv)); | |
3280af22 | 747 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 | 748 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 | 749 | if (PL_inplace) { |
79072805 | 750 | TAINT_PROPER("inplace open"); |
3280af22 | 751 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 | 752 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 753 | return IoIFP(GvIOp(gv)); |
c623bd54 | 754 | } |
99b89507 | 755 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
756 | filedev = PL_statbuf.st_dev; |
757 | fileino = PL_statbuf.st_ino; | |
99b89507 | 758 | #endif |
3280af22 NIS |
759 | PL_filemode = PL_statbuf.st_mode; |
760 | fileuid = PL_statbuf.st_uid; | |
761 | filegid = PL_statbuf.st_gid; | |
762 | if (!S_ISREG(PL_filemode)) { | |
0453d815 | 763 | if (ckWARN_d(WARN_INPLACE)) |
9014280d | 764 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
0453d815 PM |
765 | "Can't do inplace edit: %s is not a regular file", |
766 | PL_oldname ); | |
79072805 | 767 | do_close(gv,FALSE); |
c623bd54 LW |
768 | continue; |
769 | } | |
3280af22 NIS |
770 | if (*PL_inplace) { |
771 | char *star = strchr(PL_inplace, '*'); | |
2d259d92 | 772 | if (star) { |
3280af22 | 773 | char *begin = PL_inplace; |
2d259d92 CK |
774 | sv_setpvn(sv, "", 0); |
775 | do { | |
776 | sv_catpvn(sv, begin, star - begin); | |
3280af22 | 777 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 CK |
778 | begin = ++star; |
779 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
780 | if (*begin) |
781 | sv_catpv(sv,begin); | |
2d259d92 CK |
782 | } |
783 | else { | |
3280af22 | 784 | sv_catpv(sv,PL_inplace); |
2d259d92 | 785 | } |
c623bd54 | 786 | #ifndef FLEXFILENAMES |
5f74f29c JH |
787 | if ((PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
788 | && PL_statbuf.st_dev == filedev | |
789 | && PL_statbuf.st_ino == fileino) | |
39e571d4 | 790 | #ifdef DJGPP |
5f74f29c | 791 | || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0) |
39e571d4 | 792 | #endif |
f248d071 GS |
793 | ) |
794 | { | |
795 | if (ckWARN_d(WARN_INPLACE)) | |
9014280d | 796 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
35c1215d NC |
797 | "Can't do inplace edit: %"SVf" would not be unique", |
798 | sv); | |
79072805 | 799 | do_close(gv,FALSE); |
c623bd54 LW |
800 | continue; |
801 | } | |
802 | #endif | |
fe14fcc3 | 803 | #ifdef HAS_RENAME |
2585f9a3 | 804 | #if !defined(DOSISH) && !defined(__CYGWIN__) && !defined(EPOC) |
3280af22 | 805 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 | 806 | if (ckWARN_d(WARN_INPLACE)) |
9014280d | 807 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
35c1215d NC |
808 | "Can't rename %s to %"SVf": %s, skipping file", |
809 | PL_oldname, sv, Strerror(errno) ); | |
79072805 | 810 | do_close(gv,FALSE); |
c623bd54 LW |
811 | continue; |
812 | } | |
a687059c | 813 | #else |
79072805 | 814 | do_close(gv,FALSE); |
3028581b | 815 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 | 816 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 | 817 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff | 818 | #endif /* DOSISH */ |
ff8e2863 | 819 | #else |
463ee0b2 | 820 | (void)UNLINK(SvPVX(sv)); |
b28d0864 | 821 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 | 822 | if (ckWARN_d(WARN_INPLACE)) |
9014280d | 823 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
35c1215d NC |
824 | "Can't rename %s to %"SVf": %s, skipping file", |
825 | PL_oldname, sv, Strerror(errno) ); | |
79072805 | 826 | do_close(gv,FALSE); |
c623bd54 LW |
827 | continue; |
828 | } | |
b28d0864 | 829 | (void)UNLINK(PL_oldname); |
a687059c LW |
830 | #endif |
831 | } | |
832 | else { | |
c030f24b | 833 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 834 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 | 835 | if (UNLINK(PL_oldname) < 0) { |
0453d815 | 836 | if (ckWARN_d(WARN_INPLACE)) |
9014280d | 837 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
0453d815 PM |
838 | "Can't remove %s: %s, skipping file", |
839 | PL_oldname, Strerror(errno) ); | |
79072805 | 840 | do_close(gv,FALSE); |
fe14fcc3 LW |
841 | continue; |
842 | } | |
edc7bc49 | 843 | # endif |
ff8e2863 | 844 | #else |
cea2e8a9 | 845 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 | 846 | #endif |
a687059c LW |
847 | } |
848 | ||
3280af22 NIS |
849 | sv_setpvn(sv,">",!PL_inplace); |
850 | sv_catpvn(sv,PL_oldname,oldlen); | |
748a9306 | 851 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 HM |
852 | #ifdef VMS |
853 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, | |
18708f5a | 854 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) |
4119ab01 | 855 | #else |
3280af22 | 856 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a | 857 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) |
4119ab01 | 858 | #endif |
18708f5a | 859 | { |
0453d815 | 860 | if (ckWARN_d(WARN_INPLACE)) |
9014280d | 861 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s", |
0453d815 | 862 | PL_oldname, Strerror(errno) ); |
79072805 | 863 | do_close(gv,FALSE); |
fe14fcc3 LW |
864 | continue; |
865 | } | |
3280af22 NIS |
866 | setdefout(PL_argvoutgv); |
867 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); | |
868 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); | |
fe14fcc3 | 869 | #ifdef HAS_FCHMOD |
3280af22 | 870 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c | 871 | #else |
3e3baf6d TB |
872 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
873 | /* Borland runtime creates a readonly file! */ | |
b28d0864 | 874 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d | 875 | # endif |
a687059c | 876 | #endif |
3280af22 | 877 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 | 878 | #ifdef HAS_FCHOWN |
3280af22 | 879 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c | 880 | #else |
fe14fcc3 | 881 | #ifdef HAS_CHOWN |
b28d0864 | 882 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c | 883 | #endif |
b1248f16 | 884 | #endif |
fe14fcc3 | 885 | } |
a687059c | 886 | } |
a0d0e21e | 887 | return IoIFP(GvIOp(gv)); |
a687059c | 888 | } |
4d61ec05 | 889 | else { |
4d61ec05 | 890 | if (ckWARN_d(WARN_INPLACE)) { |
6af84f9f GS |
891 | int eno = errno; |
892 | if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 | |
893 | && !S_ISREG(PL_statbuf.st_mode)) | |
894 | { | |
9014280d | 895 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
4d61ec05 | 896 | "Can't do inplace edit: %s is not a regular file", |
9a7dcd9c | 897 | PL_oldname); |
6af84f9f | 898 | } |
4d61ec05 | 899 | else |
9014280d | 900 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s", |
6af84f9f | 901 | PL_oldname, Strerror(eno)); |
4d61ec05 GS |
902 | } |
903 | } | |
a687059c | 904 | } |
18708f5a GS |
905 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
906 | IoFLAGS(io) |= IOf_START; | |
3280af22 NIS |
907 | if (PL_inplace) { |
908 | (void)do_close(PL_argvoutgv,FALSE); | |
7a1c5554 GS |
909 | if (io && (IoFLAGS(io) & IOf_ARGV) |
910 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) | |
911 | { | |
18708f5a GS |
912 | GV *oldout = (GV*)av_pop(PL_argvout_stack); |
913 | setdefout(oldout); | |
914 | SvREFCNT_dec(oldout); | |
915 | return Nullfp; | |
916 | } | |
4633a7c4 | 917 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
918 | } |
919 | return Nullfp; | |
920 | } | |
921 | ||
fe14fcc3 | 922 | #ifdef HAS_PIPE |
afd9f252 | 923 | void |
864dbfa3 | 924 | Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) |
afd9f252 | 925 | { |
79072805 LW |
926 | register IO *rstio; |
927 | register IO *wstio; | |
afd9f252 LW |
928 | int fd[2]; |
929 | ||
79072805 | 930 | if (!rgv) |
afd9f252 | 931 | goto badexit; |
79072805 | 932 | if (!wgv) |
afd9f252 LW |
933 | goto badexit; |
934 | ||
a0d0e21e LW |
935 | rstio = GvIOn(rgv); |
936 | wstio = GvIOn(wgv); | |
afd9f252 | 937 | |
a0d0e21e | 938 | if (IoIFP(rstio)) |
79072805 | 939 | do_close(rgv,FALSE); |
a0d0e21e | 940 | if (IoIFP(wstio)) |
79072805 | 941 | do_close(wgv,FALSE); |
afd9f252 | 942 | |
3028581b | 943 | if (PerlProc_pipe(fd) < 0) |
afd9f252 | 944 | goto badexit; |
460c8493 IZ |
945 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE); |
946 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE); | |
b5ac89c3 | 947 | IoOFP(rstio) = IoIFP(rstio); |
8990e307 | 948 | IoIFP(wstio) = IoOFP(wstio); |
50952442 JH |
949 | IoTYPE(rstio) = IoTYPE_RDONLY; |
950 | IoTYPE(wstio) = IoTYPE_WRONLY; | |
8990e307 | 951 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 | 952 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b | 953 | else PerlLIO_close(fd[0]); |
760ac839 | 954 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b | 955 | else PerlLIO_close(fd[1]); |
fe14fcc3 LW |
956 | goto badexit; |
957 | } | |
afd9f252 | 958 | |
3280af22 | 959 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 LW |
960 | return; |
961 | ||
962 | badexit: | |
3280af22 | 963 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 LW |
964 | return; |
965 | } | |
b1248f16 | 966 | #endif |
afd9f252 | 967 | |
517844ec | 968 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 969 | bool |
864dbfa3 | 970 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c | 971 | { |
1193dd27 IZ |
972 | bool retval; |
973 | IO *io; | |
a687059c | 974 | |
79072805 | 975 | if (!gv) |
3280af22 | 976 | gv = PL_argvgv; |
a0d0e21e | 977 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 | 978 | if (not_implicit) |
93189314 | 979 | SETERRNO(EBADF,SS_IVCHAN); |
c2ab57d4 | 980 | return FALSE; |
99b89507 | 981 | } |
79072805 LW |
982 | io = GvIO(gv); |
983 | if (!io) { /* never opened */ | |
1d2dff63 | 984 | if (not_implicit) { |
2dd78f96 JH |
985 | if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ |
986 | report_evil_fh(gv, io, PL_op->op_type); | |
93189314 | 987 | SETERRNO(EBADF,SS_IVCHAN); |
1d2dff63 | 988 | } |
a687059c LW |
989 | return FALSE; |
990 | } | |
f2b5be74 | 991 | retval = io_close(io, not_implicit); |
517844ec | 992 | if (not_implicit) { |
1193dd27 IZ |
993 | IoLINES(io) = 0; |
994 | IoPAGE(io) = 0; | |
995 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
996 | } | |
50952442 | 997 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 IZ |
998 | return retval; |
999 | } | |
1000 | ||
1001 | bool | |
f2b5be74 | 1002 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 IZ |
1003 | { |
1004 | bool retval = FALSE; | |
1005 | int status; | |
1006 | ||
8990e307 | 1007 | if (IoIFP(io)) { |
50952442 | 1008 | if (IoTYPE(io) == IoTYPE_PIPE) { |
3028581b | 1009 | status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 GS |
1010 | if (not_implicit) { |
1011 | STATUS_NATIVE_SET(status); | |
1012 | retval = (STATUS_POSIX == 0); | |
1013 | } | |
1014 | else { | |
1015 | retval = (status != -1); | |
1016 | } | |
a687059c | 1017 | } |
50952442 | 1018 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c LW |
1019 | retval = TRUE; |
1020 | else { | |
8990e307 | 1021 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 LW |
1022 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
1023 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
1024 | } |
1025 | else | |
760ac839 | 1026 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c | 1027 | } |
8990e307 | 1028 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 | 1029 | } |
f2b5be74 | 1030 | else if (not_implicit) { |
93189314 | 1031 | SETERRNO(EBADF,SS_IVCHAN); |
20408e3c | 1032 | } |
1193dd27 | 1033 | |
a687059c LW |
1034 | return retval; |
1035 | } | |
1036 | ||
1037 | bool | |
864dbfa3 | 1038 | Perl_do_eof(pTHX_ GV *gv) |
a687059c | 1039 | { |
79072805 | 1040 | register IO *io; |
a687059c LW |
1041 | int ch; |
1042 | ||
79072805 | 1043 | io = GvIO(gv); |
a687059c | 1044 | |
79072805 | 1045 | if (!io) |
a687059c | 1046 | return TRUE; |
a00b5bd3 | 1047 | else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY)) |
06bcfee8 | 1048 | report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY); |
a687059c | 1049 | |
8990e307 | 1050 | while (IoIFP(io)) { |
505fdf5d | 1051 | int saverrno; |
a687059c | 1052 | |
760ac839 | 1053 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 | 1054 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 LW |
1055 | return FALSE; /* this is the most usual case */ |
1056 | } | |
a687059c | 1057 | |
505fdf5d | 1058 | saverrno = errno; /* getc and ungetc can stomp on errno */ |
760ac839 | 1059 | ch = PerlIO_getc(IoIFP(io)); |
a687059c | 1060 | if (ch != EOF) { |
760ac839 | 1061 | (void)PerlIO_ungetc(IoIFP(io),ch); |
505fdf5d | 1062 | errno = saverrno; |
a687059c LW |
1063 | return FALSE; |
1064 | } | |
505fdf5d | 1065 | errno = saverrno; |
fab3f3a7 | 1066 | |
760ac839 | 1067 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 JH |
1068 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
1069 | PerlIO_set_cnt(IoIFP(io),-1); | |
760ac839 | 1070 | } |
533c011a | 1071 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
ed2c6b9b | 1072 | if (gv != PL_argvgv || !nextargv(gv)) /* get another fp handy */ |
a687059c LW |
1073 | return TRUE; |
1074 | } | |
1075 | else | |
1076 | return TRUE; /* normal fp, definitely end of file */ | |
1077 | } | |
1078 | return TRUE; | |
1079 | } | |
1080 | ||
5ff3f7a4 | 1081 | Off_t |
864dbfa3 | 1082 | Perl_do_tell(pTHX_ GV *gv) |
a687059c | 1083 | { |
9c5ffd7c | 1084 | register IO *io = 0; |
96e4d5b1 | 1085 | register PerlIO *fp; |
a687059c | 1086 | |
96e4d5b1 | 1087 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 1088 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 | 1089 | if (PerlIO_eof(fp)) |
1090 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 1091 | #endif |
8903cb82 | 1092 | return PerlIO_tell(fp); |
96e4d5b1 | 1093 | } |
411caa50 JH |
1094 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1095 | report_evil_fh(gv, io, PL_op->op_type); | |
93189314 | 1096 | SETERRNO(EBADF,RMS_IFI); |
5ff3f7a4 | 1097 | return (Off_t)-1; |
a687059c LW |
1098 | } |
1099 | ||
1100 | bool | |
864dbfa3 | 1101 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c | 1102 | { |
9c5ffd7c | 1103 | register IO *io = 0; |
137443ea | 1104 | register PerlIO *fp; |
a687059c | 1105 | |
137443ea | 1106 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 1107 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea | 1108 | if (PerlIO_eof(fp)) |
1109 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 1110 | #endif |
8903cb82 | 1111 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 1112 | } |
411caa50 JH |
1113 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1114 | report_evil_fh(gv, io, PL_op->op_type); | |
93189314 | 1115 | SETERRNO(EBADF,RMS_IFI); |
a687059c LW |
1116 | return FALSE; |
1117 | } | |
1118 | ||
97cc44eb | 1119 | Off_t |
864dbfa3 | 1120 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 | 1121 | { |
9c5ffd7c | 1122 | register IO *io = 0; |
8903cb82 | 1123 | register PerlIO *fp; |
1124 | ||
1125 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) | |
3028581b | 1126 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
411caa50 JH |
1127 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1128 | report_evil_fh(gv, io, PL_op->op_type); | |
93189314 | 1129 | SETERRNO(EBADF,RMS_IFI); |
d9b3e12d | 1130 | return (Off_t)-1; |
8903cb82 | 1131 | } |
1132 | ||
6ff81951 | 1133 | int |
16fe6d59 GS |
1134 | Perl_mode_from_discipline(pTHX_ SV *discp) |
1135 | { | |
1136 | int mode = O_BINARY; | |
1137 | if (discp) { | |
1138 | STRLEN len; | |
1139 | char *s = SvPV(discp,len); | |
1140 | while (*s) { | |
1141 | if (*s == ':') { | |
1142 | switch (s[1]) { | |
1143 | case 'r': | |
e963d6d2 | 1144 | if (s[2] == 'a' && s[3] == 'w' |
16fe6d59 GS |
1145 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) |
1146 | { | |
1147 | mode = O_BINARY; | |
1148 | s += 4; | |
1149 | len -= 4; | |
1150 | break; | |
1151 | } | |
1152 | /* FALL THROUGH */ | |
1153 | case 'c': | |
e963d6d2 | 1154 | if (s[2] == 'r' && s[3] == 'l' && s[4] == 'f' |
16fe6d59 GS |
1155 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) |
1156 | { | |
1157 | mode = O_TEXT; | |
1158 | s += 5; | |
1159 | len -= 5; | |
1160 | break; | |
1161 | } | |
1162 | /* FALL THROUGH */ | |
1163 | default: | |
1164 | goto fail_discipline; | |
1165 | } | |
1166 | } | |
1167 | else if (isSPACE(*s)) { | |
1168 | ++s; | |
1169 | --len; | |
1170 | } | |
1171 | else { | |
1172 | char *end; | |
1173 | fail_discipline: | |
1174 | end = strchr(s+1, ':'); | |
1175 | if (!end) | |
1176 | end = s+len; | |
60382766 | 1177 | #ifndef PERLIO_LAYERS |
363c40c4 | 1178 | Perl_croak(aTHX_ "IO layers (like '%.*s') unavailable", end-s, s); |
60382766 | 1179 | #else |
18a33fb5 | 1180 | len -= end-s; |
60382766 NIS |
1181 | s = end; |
1182 | #endif | |
16fe6d59 GS |
1183 | } |
1184 | } | |
1185 | } | |
1186 | return mode; | |
1187 | } | |
1188 | ||
1189 | int | |
1190 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode) | |
6ff81951 | 1191 | { |
60382766 NIS |
1192 | /* The old body of this is now in non-LAYER part of perlio.c |
1193 | * This is a stub for any XS code which might have been calling it. | |
1194 | */ | |
6ce75a77 | 1195 | char *name = ":raw"; |
35990314 | 1196 | #ifdef PERLIO_USING_CRLF |
8b24e160 | 1197 | if (!(mode & O_BINARY)) |
6ce75a77 JH |
1198 | name = ":crlf"; |
1199 | #endif | |
60382766 | 1200 | return PerlIO_binmode(aTHX_ fp, iotype, mode, name); |
6ff81951 GS |
1201 | } |
1202 | ||
a0d0e21e | 1203 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 1204 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 1205 | #define HAS_CHSIZE |
6eb13c3b | 1206 | |
517844ec | 1207 | I32 my_chsize(fd, length) |
79072805 | 1208 | I32 fd; /* file descriptor */ |
85e6fe83 | 1209 | Off_t length; /* length to set file to */ |
6eb13c3b | 1210 | { |
6eb13c3b | 1211 | struct flock fl; |
c623ac67 | 1212 | Stat_t filebuf; |
6eb13c3b | 1213 | |
3028581b | 1214 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
1215 | return -1; |
1216 | ||
1217 | if (filebuf.st_size < length) { | |
1218 | ||
1219 | /* extend file length */ | |
1220 | ||
3028581b | 1221 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
1222 | return -1; |
1223 | ||
1224 | /* write a "0" byte */ | |
1225 | ||
3028581b | 1226 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
1227 | return -1; |
1228 | } | |
1229 | else { | |
1230 | /* truncate length */ | |
1231 | ||
1232 | fl.l_whence = 0; | |
1233 | fl.l_len = 0; | |
1234 | fl.l_start = length; | |
a0d0e21e | 1235 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
1236 | |
1237 | /* | |
a0d0e21e | 1238 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
1239 | * fcntl(2), which truncates the file so that it ends at the |
1240 | * position indicated by fl.l_start. | |
1241 | * | |
1242 | * Will minor miracles never cease? | |
1243 | */ | |
1244 | ||
a0d0e21e | 1245 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
1246 | return -1; |
1247 | ||
1248 | } | |
1249 | ||
1250 | return 0; | |
1251 | } | |
a0d0e21e | 1252 | #endif /* F_FREESP */ |
ff8e2863 | 1253 | |
a687059c | 1254 | bool |
864dbfa3 | 1255 | Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) |
a687059c LW |
1256 | { |
1257 | register char *tmps; | |
463ee0b2 | 1258 | STRLEN len; |
a687059c | 1259 | |
79072805 LW |
1260 | /* assuming fp is checked earlier */ |
1261 | if (!sv) | |
1262 | return TRUE; | |
3280af22 | 1263 | if (PL_ofmt) { |
8990e307 | 1264 | if (SvGMAGICAL(sv)) |
79072805 | 1265 | mg_get(sv); |
463ee0b2 | 1266 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
65202027 | 1267 | PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); |
760ac839 | 1268 | return !PerlIO_error(fp); |
79072805 | 1269 | } |
463ee0b2 | 1270 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 1271 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 | 1272 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 | 1273 | return !PerlIO_error(fp); |
79072805 | 1274 | } |
a687059c | 1275 | } |
79072805 LW |
1276 | switch (SvTYPE(sv)) { |
1277 | case SVt_NULL: | |
411caa50 | 1278 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 1279 | report_uninit(sv); |
ff8e2863 | 1280 | return TRUE; |
79072805 | 1281 | case SVt_IV: |
a0d0e21e LW |
1282 | if (SvIOK(sv)) { |
1283 | if (SvGMAGICAL(sv)) | |
1284 | mg_get(sv); | |
cf2093f6 | 1285 | if (SvIsUV(sv)) |
57def98f | 1286 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 1287 | else |
57def98f | 1288 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); |
760ac839 | 1289 | return !PerlIO_error(fp); |
a0d0e21e LW |
1290 | } |
1291 | /* FALL THROUGH */ | |
79072805 | 1292 | default: |
7d59b7e4 | 1293 | if (PerlIO_isutf8(fp)) { |
f9a63242 | 1294 | if (!SvUTF8(sv)) |
88632417 JH |
1295 | sv_utf8_upgrade_flags(sv = sv_mortalcopy(sv), |
1296 | SV_GMAGIC|SV_UTF8_NO_ENCODING); | |
7d59b7e4 | 1297 | } |
ae798467 | 1298 | else if (DO_UTF8(sv)) { |
2da16753 | 1299 | if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE) |
62961d2e | 1300 | && ckWARN_d(WARN_UTF8)) |
2da16753 | 1301 | { |
9014280d | 1302 | Perl_warner(aTHX_ packWARN(WARN_UTF8), "Wide character in print"); |
ae798467 NIS |
1303 | } |
1304 | } | |
f9a63242 | 1305 | tmps = SvPV(sv, len); |
79072805 | 1306 | break; |
ff8e2863 | 1307 | } |
94e4c244 JH |
1308 | /* To detect whether the process is about to overstep its |
1309 | * filesize limit we would need getrlimit(). We could then | |
1310 | * also transparently raise the limit with setrlimit() -- | |
1311 | * but only until the system hard limit/the filesystem limit, | |
c5dd3cdd JH |
1312 | * at which we would get EPERM. Note that when using buffered |
1313 | * io the write failure can be delayed until the flush/close. --jhi */ | |
a21ac455 | 1314 | if (len && (PerlIO_write(fp,tmps,len) == 0)) |
a687059c | 1315 | return FALSE; |
760ac839 | 1316 | return !PerlIO_error(fp); |
a687059c LW |
1317 | } |
1318 | ||
79072805 | 1319 | I32 |
cea2e8a9 | 1320 | Perl_my_stat(pTHX) |
a687059c | 1321 | { |
39644a26 | 1322 | dSP; |
79072805 | 1323 | IO *io; |
2dd78f96 | 1324 | GV* gv; |
79072805 | 1325 | |
533c011a | 1326 | if (PL_op->op_flags & OPf_REF) { |
924508f0 | 1327 | EXTEND(SP,1); |
2dd78f96 | 1328 | gv = cGVOP_gv; |
748a9306 | 1329 | do_fstat: |
2dd78f96 | 1330 | io = GvIO(gv); |
8990e307 | 1331 | if (io && IoIFP(io)) { |
2dd78f96 | 1332 | PL_statgv = gv; |
3280af22 NIS |
1333 | sv_setpv(PL_statname,""); |
1334 | PL_laststype = OP_STAT; | |
1335 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); | |
a687059c LW |
1336 | } |
1337 | else { | |
2dd78f96 | 1338 | if (gv == PL_defgv) |
3280af22 | 1339 | return PL_laststatval; |
2dd78f96 JH |
1340 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1341 | report_evil_fh(gv, io, PL_op->op_type); | |
3280af22 NIS |
1342 | PL_statgv = Nullgv; |
1343 | sv_setpv(PL_statname,""); | |
1344 | return (PL_laststatval = -1); | |
a687059c LW |
1345 | } |
1346 | } | |
fbb0b3b3 RGS |
1347 | else if (PL_op->op_private & OPpFT_STACKED) { |
1348 | return PL_laststatval; | |
1349 | } | |
a687059c | 1350 | else { |
748a9306 | 1351 | SV* sv = POPs; |
4b74e3fb | 1352 | char *s; |
4ecd490c | 1353 | STRLEN len; |
79072805 | 1354 | PUTBACK; |
748a9306 | 1355 | if (SvTYPE(sv) == SVt_PVGV) { |
2dd78f96 | 1356 | gv = (GV*)sv; |
748a9306 LW |
1357 | goto do_fstat; |
1358 | } | |
1359 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
2dd78f96 | 1360 | gv = (GV*)SvRV(sv); |
748a9306 LW |
1361 | goto do_fstat; |
1362 | } | |
1363 | ||
4ecd490c | 1364 | s = SvPV(sv, len); |
3280af22 | 1365 | PL_statgv = Nullgv; |
4ecd490c JH |
1366 | sv_setpvn(PL_statname, s, len); |
1367 | s = SvPVX(PL_statname); /* s now NUL-terminated */ | |
3280af22 NIS |
1368 | PL_laststype = OP_STAT; |
1369 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); | |
599cee73 | 1370 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
9014280d | 1371 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); |
3280af22 | 1372 | return PL_laststatval; |
a687059c LW |
1373 | } |
1374 | } | |
1375 | ||
fbb0b3b3 RGS |
1376 | static char no_prev_lstat[] = "The stat preceding -l _ wasn't an lstat"; |
1377 | ||
79072805 | 1378 | I32 |
cea2e8a9 | 1379 | Perl_my_lstat(pTHX) |
c623bd54 | 1380 | { |
39644a26 | 1381 | dSP; |
79072805 | 1382 | SV *sv; |
2d8e6c8d | 1383 | STRLEN n_a; |
533c011a | 1384 | if (PL_op->op_flags & OPf_REF) { |
924508f0 | 1385 | EXTEND(SP,1); |
638eceb6 | 1386 | if (cGVOP_gv == PL_defgv) { |
3280af22 | 1387 | if (PL_laststype != OP_LSTAT) |
fbb0b3b3 | 1388 | Perl_croak(aTHX_ no_prev_lstat); |
3280af22 | 1389 | return PL_laststatval; |
fe14fcc3 | 1390 | } |
5d3e98de | 1391 | if (ckWARN(WARN_IO)) { |
9014280d | 1392 | Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s", |
5d3e98de RGS |
1393 | GvENAME(cGVOP_gv)); |
1394 | return (PL_laststatval = -1); | |
1395 | } | |
fe14fcc3 | 1396 | } |
fbb0b3b3 RGS |
1397 | else if (ckWARN(WARN_IO) && PL_laststype != OP_LSTAT |
1398 | && (PL_op->op_private & OPpFT_STACKED)) | |
1399 | Perl_croak(aTHX_ no_prev_lstat); | |
c623bd54 | 1400 | |
3280af22 NIS |
1401 | PL_laststype = OP_LSTAT; |
1402 | PL_statgv = Nullgv; | |
79072805 LW |
1403 | sv = POPs; |
1404 | PUTBACK; | |
5d3e98de | 1405 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV && ckWARN(WARN_IO)) { |
9014280d | 1406 | Perl_warner(aTHX_ packWARN(WARN_IO), "Use of -l on filehandle %s", |
5d3e98de RGS |
1407 | GvENAME((GV*) SvRV(sv))); |
1408 | return (PL_laststatval = -1); | |
1409 | } | |
2d8e6c8d | 1410 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
2d8e6c8d | 1411 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
2d8e6c8d | 1412 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
9014280d | 1413 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat"); |
3280af22 | 1414 | return PL_laststatval; |
c623bd54 LW |
1415 | } |
1416 | ||
622913ab | 1417 | #ifndef OS2 |
a687059c | 1418 | bool |
864dbfa3 | 1419 | Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) |
a687059c | 1420 | { |
d5a9bfb0 IZ |
1421 | return do_aexec5(really, mark, sp, 0, 0); |
1422 | } | |
622913ab | 1423 | #endif |
d5a9bfb0 IZ |
1424 | |
1425 | bool | |
2aa1486d GS |
1426 | Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, |
1427 | int fd, int do_report) | |
d5a9bfb0 | 1428 | { |
cd39f2b6 JH |
1429 | #ifdef MACOS_TRADITIONAL |
1430 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); | |
1431 | #else | |
a687059c | 1432 | register char **a; |
9c5ffd7c | 1433 | char *tmps = Nullch; |
2d8e6c8d | 1434 | STRLEN n_a; |
a687059c | 1435 | |
79072805 | 1436 | if (sp > mark) { |
3280af22 NIS |
1437 | New(401,PL_Argv, sp - mark + 1, char*); |
1438 | a = PL_Argv; | |
79072805 LW |
1439 | while (++mark <= sp) { |
1440 | if (*mark) | |
2d8e6c8d | 1441 | *a++ = SvPVx(*mark, n_a); |
a687059c LW |
1442 | else |
1443 | *a++ = ""; | |
1444 | } | |
1445 | *a = Nullch; | |
91b2752f RG |
1446 | if (really) |
1447 | tmps = SvPV(really, n_a); | |
1448 | if ((!really && *PL_Argv[0] != '/') || | |
1449 | (really && *tmps != '/')) /* will execvp use PATH? */ | |
79072805 | 1450 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
b35112e7 | 1451 | PERL_FPU_PRE_EXEC |
91b2752f | 1452 | if (really && *tmps) |
b4748376 | 1453 | PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); |
a687059c | 1454 | else |
b4748376 | 1455 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
b35112e7 | 1456 | PERL_FPU_POST_EXEC |
599cee73 | 1457 | if (ckWARN(WARN_EXEC)) |
9014280d | 1458 | Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", |
91b2752f | 1459 | (really ? tmps : PL_Argv[0]), Strerror(errno)); |
d5a9bfb0 IZ |
1460 | if (do_report) { |
1461 | int e = errno; | |
1462 | ||
1463 | PerlLIO_write(fd, (void*)&e, sizeof(int)); | |
1464 | PerlLIO_close(fd); | |
1465 | } | |
a687059c | 1466 | } |
bee1dbe2 | 1467 | do_execfree(); |
cd39f2b6 | 1468 | #endif |
a687059c LW |
1469 | return FALSE; |
1470 | } | |
1471 | ||
fe14fcc3 | 1472 | void |
864dbfa3 | 1473 | Perl_do_execfree(pTHX) |
ff8e2863 | 1474 | { |
3280af22 NIS |
1475 | if (PL_Argv) { |
1476 | Safefree(PL_Argv); | |
1477 | PL_Argv = Null(char **); | |
ff8e2863 | 1478 | } |
3280af22 NIS |
1479 | if (PL_Cmd) { |
1480 | Safefree(PL_Cmd); | |
1481 | PL_Cmd = Nullch; | |
ff8e2863 LW |
1482 | } |
1483 | } | |
1484 | ||
cd39f2b6 | 1485 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
760ac839 | 1486 | |
a687059c | 1487 | bool |
864dbfa3 | 1488 | Perl_do_exec(pTHX_ char *cmd) |
a687059c | 1489 | { |
e446cec8 IZ |
1490 | return do_exec3(cmd,0,0); |
1491 | } | |
1492 | ||
1493 | bool | |
864dbfa3 | 1494 | Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) |
e446cec8 | 1495 | { |
a687059c LW |
1496 | register char **a; |
1497 | register char *s; | |
a687059c | 1498 | |
748a9306 LW |
1499 | while (*cmd && isSPACE(*cmd)) |
1500 | cmd++; | |
1501 | ||
a687059c LW |
1502 | /* save an extra exec if possible */ |
1503 | ||
bf38876a | 1504 | #ifdef CSH |
d05c1ba0 JH |
1505 | { |
1506 | char flags[10]; | |
1507 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && | |
1508 | strnEQ(cmd+PL_cshlen," -c",3)) { | |
1509 | strcpy(flags,"-c"); | |
1510 | s = cmd+PL_cshlen+3; | |
1511 | if (*s == 'f') { | |
1512 | s++; | |
1513 | strcat(flags,"f"); | |
1514 | } | |
1515 | if (*s == ' ') | |
1516 | s++; | |
1517 | if (*s++ == '\'') { | |
1518 | char *ncmd = s; | |
1519 | ||
1520 | while (*s) | |
1521 | s++; | |
1522 | if (s[-1] == '\n') | |
1523 | *--s = '\0'; | |
1524 | if (s[-1] == '\'') { | |
1525 | *--s = '\0'; | |
b35112e7 | 1526 | PERL_FPU_PRE_EXEC |
d05c1ba0 | 1527 | PerlProc_execl(PL_cshname,"csh", flags, ncmd, (char*)0); |
b35112e7 | 1528 | PERL_FPU_POST_EXEC |
d05c1ba0 JH |
1529 | *s = '\''; |
1530 | return FALSE; | |
1531 | } | |
1532 | } | |
a687059c LW |
1533 | } |
1534 | } | |
bf38876a | 1535 | #endif /* CSH */ |
a687059c LW |
1536 | |
1537 | /* see if there are shell metacharacters in it */ | |
1538 | ||
748a9306 LW |
1539 | if (*cmd == '.' && isSPACE(cmd[1])) |
1540 | goto doshell; | |
1541 | ||
1542 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
1543 | goto doshell; | |
1544 | ||
c170e444 | 1545 | for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1546 | if (*s == '=') |
1547 | goto doshell; | |
748a9306 | 1548 | |
a687059c | 1549 | for (s = cmd; *s; s++) { |
d05c1ba0 JH |
1550 | if (*s != ' ' && !isALPHA(*s) && |
1551 | strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { | |
a687059c LW |
1552 | if (*s == '\n' && !s[1]) { |
1553 | *s = '\0'; | |
1554 | break; | |
1555 | } | |
603a98b0 IZ |
1556 | /* handle the 2>&1 construct at the end */ |
1557 | if (*s == '>' && s[1] == '&' && s[2] == '1' | |
1558 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) | |
1559 | && (!s[3] || isSPACE(s[3]))) | |
1560 | { | |
1561 | char *t = s + 3; | |
1562 | ||
1563 | while (*t && isSPACE(*t)) | |
1564 | ++t; | |
943bbd07 | 1565 | if (!*t && (PerlLIO_dup2(1,2) != -1)) { |
603a98b0 IZ |
1566 | s[-2] = '\0'; |
1567 | break; | |
1568 | } | |
1569 | } | |
a687059c | 1570 | doshell: |
b35112e7 | 1571 | PERL_FPU_PRE_EXEC |
3280af22 | 1572 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
b35112e7 | 1573 | PERL_FPU_POST_EXEC |
a687059c LW |
1574 | return FALSE; |
1575 | } | |
1576 | } | |
748a9306 | 1577 | |
3280af22 NIS |
1578 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1579 | PL_Cmd = savepvn(cmd, s-cmd); | |
1580 | a = PL_Argv; | |
1581 | for (s = PL_Cmd; *s;) { | |
99b89507 | 1582 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1583 | if (*s) |
1584 | *(a++) = s; | |
99b89507 | 1585 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1586 | if (*s) |
1587 | *s++ = '\0'; | |
1588 | } | |
1589 | *a = Nullch; | |
3280af22 | 1590 | if (PL_Argv[0]) { |
b35112e7 | 1591 | PERL_FPU_PRE_EXEC |
3280af22 | 1592 | PerlProc_execvp(PL_Argv[0],PL_Argv); |
b35112e7 | 1593 | PERL_FPU_POST_EXEC |
b1248f16 | 1594 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1595 | do_execfree(); |
a687059c | 1596 | goto doshell; |
b1248f16 | 1597 | } |
d008e5eb | 1598 | { |
e446cec8 IZ |
1599 | int e = errno; |
1600 | ||
d008e5eb | 1601 | if (ckWARN(WARN_EXEC)) |
9014280d | 1602 | Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", |
d008e5eb | 1603 | PL_Argv[0], Strerror(errno)); |
e446cec8 IZ |
1604 | if (do_report) { |
1605 | PerlLIO_write(fd, (void*)&e, sizeof(int)); | |
1606 | PerlLIO_close(fd); | |
1607 | } | |
d008e5eb | 1608 | } |
a687059c | 1609 | } |
ff8e2863 | 1610 | do_execfree(); |
a687059c LW |
1611 | return FALSE; |
1612 | } | |
1613 | ||
6890e559 | 1614 | #endif /* OS2 || WIN32 */ |
760ac839 | 1615 | |
79072805 | 1616 | I32 |
864dbfa3 | 1617 | Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) |
a687059c | 1618 | { |
79072805 LW |
1619 | register I32 val; |
1620 | register I32 val2; | |
1621 | register I32 tot = 0; | |
20408e3c | 1622 | char *what; |
a687059c | 1623 | char *s; |
79072805 | 1624 | SV **oldmark = mark; |
2d8e6c8d | 1625 | STRLEN n_a; |
a687059c | 1626 | |
20408e3c | 1627 | #define APPLY_TAINT_PROPER() \ |
3280af22 | 1628 | STMT_START { \ |
17406bd6 | 1629 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 | 1630 | } STMT_END |
20408e3c GS |
1631 | |
1632 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
3280af22 | 1633 | if (PL_tainting) { |
463ee0b2 | 1634 | while (++mark <= sp) { |
bbce6d69 | 1635 | if (SvTAINTED(*mark)) { |
1636 | TAINT; | |
1637 | break; | |
1638 | } | |
463ee0b2 LW |
1639 | } |
1640 | mark = oldmark; | |
1641 | } | |
a687059c | 1642 | switch (type) { |
79072805 | 1643 | case OP_CHMOD: |
20408e3c GS |
1644 | what = "chmod"; |
1645 | APPLY_TAINT_PROPER(); | |
79072805 | 1646 | if (++mark <= sp) { |
463ee0b2 | 1647 | val = SvIVx(*mark); |
20408e3c GS |
1648 | APPLY_TAINT_PROPER(); |
1649 | tot = sp - mark; | |
79072805 | 1650 | while (++mark <= sp) { |
2d8e6c8d | 1651 | char *name = SvPVx(*mark, n_a); |
20408e3c GS |
1652 | APPLY_TAINT_PROPER(); |
1653 | if (PerlLIO_chmod(name, val)) | |
a687059c LW |
1654 | tot--; |
1655 | } | |
1656 | } | |
1657 | break; | |
fe14fcc3 | 1658 | #ifdef HAS_CHOWN |
79072805 | 1659 | case OP_CHOWN: |
20408e3c GS |
1660 | what = "chown"; |
1661 | APPLY_TAINT_PROPER(); | |
79072805 | 1662 | if (sp - mark > 2) { |
463ee0b2 LW |
1663 | val = SvIVx(*++mark); |
1664 | val2 = SvIVx(*++mark); | |
20408e3c | 1665 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1666 | tot = sp - mark; |
79072805 | 1667 | while (++mark <= sp) { |
2d8e6c8d | 1668 | char *name = SvPVx(*mark, n_a); |
20408e3c | 1669 | APPLY_TAINT_PROPER(); |
36660982 | 1670 | if (PerlLIO_chown(name, val, val2)) |
a687059c LW |
1671 | tot--; |
1672 | } | |
1673 | } | |
1674 | break; | |
b1248f16 | 1675 | #endif |
a1d180c4 | 1676 | /* |
dd64f1c3 AD |
1677 | XXX Should we make lchown() directly available from perl? |
1678 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1679 | nothing in the core. | |
1680 | --AD 5/1998 | |
1681 | */ | |
fe14fcc3 | 1682 | #ifdef HAS_KILL |
79072805 | 1683 | case OP_KILL: |
20408e3c GS |
1684 | what = "kill"; |
1685 | APPLY_TAINT_PROPER(); | |
55497cff | 1686 | if (mark == sp) |
1687 | break; | |
2d8e6c8d | 1688 | s = SvPVx(*++mark, n_a); |
e02bfb16 | 1689 | if (isALPHA(*s)) { |
79072805 LW |
1690 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') |
1691 | s += 3; | |
e02bfb16 | 1692 | if ((val = whichsig(s)) < 0) |
cea2e8a9 | 1693 | Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); |
79072805 LW |
1694 | } |
1695 | else | |
463ee0b2 | 1696 | val = SvIVx(*mark); |
20408e3c GS |
1697 | APPLY_TAINT_PROPER(); |
1698 | tot = sp - mark; | |
3595fcef | 1699 | #ifdef VMS |
1700 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
1701 | if (val < 0) val = -val; | |
1702 | if (val == SIGKILL) { | |
1703 | # include <starlet.h> | |
1704 | /* Use native sys$delprc() to insure that target process is | |
1705 | * deleted; supervisor-mode images don't pay attention to | |
1706 | * CRTL's emulation of Unix-style signals and kill() | |
1707 | */ | |
1708 | while (++mark <= sp) { | |
1709 | I32 proc = SvIVx(*mark); | |
1710 | register unsigned long int __vmssts; | |
20408e3c | 1711 | APPLY_TAINT_PROPER(); |
3595fcef | 1712 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1713 | tot--; | |
1714 | switch (__vmssts) { | |
1715 | case SS$_NONEXPR: | |
1716 | case SS$_NOSUCHNODE: | |
1717 | SETERRNO(ESRCH,__vmssts); | |
1718 | break; | |
1719 | case SS$_NOPRIV: | |
1720 | SETERRNO(EPERM,__vmssts); | |
1721 | break; | |
1722 | default: | |
1723 | SETERRNO(EVMSERR,__vmssts); | |
1724 | } | |
1725 | } | |
1726 | } | |
1727 | break; | |
1728 | } | |
1729 | #endif | |
79072805 LW |
1730 | if (val < 0) { |
1731 | val = -val; | |
1732 | while (++mark <= sp) { | |
463ee0b2 | 1733 | I32 proc = SvIVx(*mark); |
20408e3c | 1734 | APPLY_TAINT_PROPER(); |
fe14fcc3 | 1735 | #ifdef HAS_KILLPG |
3028581b | 1736 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c | 1737 | #else |
3028581b | 1738 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c | 1739 | #endif |
79072805 | 1740 | tot--; |
a687059c | 1741 | } |
79072805 LW |
1742 | } |
1743 | else { | |
1744 | while (++mark <= sp) { | |
20408e3c GS |
1745 | I32 proc = SvIVx(*mark); |
1746 | APPLY_TAINT_PROPER(); | |
1747 | if (PerlProc_kill(proc, val)) | |
79072805 | 1748 | tot--; |
a687059c LW |
1749 | } |
1750 | } | |
1751 | break; | |
b1248f16 | 1752 | #endif |
79072805 | 1753 | case OP_UNLINK: |
20408e3c GS |
1754 | what = "unlink"; |
1755 | APPLY_TAINT_PROPER(); | |
79072805 LW |
1756 | tot = sp - mark; |
1757 | while (++mark <= sp) { | |
2d8e6c8d | 1758 | s = SvPVx(*mark, n_a); |
20408e3c | 1759 | APPLY_TAINT_PROPER(); |
3280af22 | 1760 | if (PL_euid || PL_unsafe) { |
a687059c LW |
1761 | if (UNLINK(s)) |
1762 | tot--; | |
1763 | } | |
1764 | else { /* don't let root wipe out directories without -U */ | |
3280af22 | 1765 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c LW |
1766 | tot--; |
1767 | else { | |
1768 | if (UNLINK(s)) | |
1769 | tot--; | |
1770 | } | |
1771 | } | |
1772 | } | |
1773 | break; | |
a0d0e21e | 1774 | #ifdef HAS_UTIME |
79072805 | 1775 | case OP_UTIME: |
20408e3c GS |
1776 | what = "utime"; |
1777 | APPLY_TAINT_PROPER(); | |
79072805 | 1778 | if (sp - mark > 2) { |
748a9306 | 1779 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1780 | struct utimbuf utbuf; |
1781 | #else | |
a687059c | 1782 | struct { |
dd2821f6 GS |
1783 | Time_t actime; |
1784 | Time_t modtime; | |
a687059c | 1785 | } utbuf; |
663a0e37 | 1786 | #endif |
a687059c | 1787 | |
c6f7b413 RS |
1788 | SV* accessed = *++mark; |
1789 | SV* modified = *++mark; | |
1790 | void * utbufp = &utbuf; | |
1791 | ||
6ec06612 SB |
1792 | /* Be like C, and if both times are undefined, let the C |
1793 | * library figure out what to do. This usually means | |
1794 | * "current time". */ | |
c6f7b413 RS |
1795 | |
1796 | if ( accessed == &PL_sv_undef && modified == &PL_sv_undef ) | |
6ec06612 SB |
1797 | utbufp = NULL; |
1798 | else { | |
1799 | Zero(&utbuf, sizeof utbuf, char); | |
517844ec | 1800 | #ifdef BIG_TIME |
6ec06612 SB |
1801 | utbuf.actime = (Time_t)SvNVx(accessed); /* time accessed */ |
1802 | utbuf.modtime = (Time_t)SvNVx(modified); /* time modified */ | |
517844ec | 1803 | #else |
6ec06612 SB |
1804 | utbuf.actime = (Time_t)SvIVx(accessed); /* time accessed */ |
1805 | utbuf.modtime = (Time_t)SvIVx(modified); /* time modified */ | |
517844ec | 1806 | #endif |
6ec06612 SB |
1807 | } |
1808 | APPLY_TAINT_PROPER(); | |
79072805 LW |
1809 | tot = sp - mark; |
1810 | while (++mark <= sp) { | |
2d8e6c8d | 1811 | char *name = SvPVx(*mark, n_a); |
20408e3c | 1812 | APPLY_TAINT_PROPER(); |
c6f7b413 | 1813 | if (PerlLIO_utime(name, utbufp)) |
a687059c LW |
1814 | tot--; |
1815 | } | |
a687059c LW |
1816 | } |
1817 | else | |
79072805 | 1818 | tot = 0; |
a687059c | 1819 | break; |
a0d0e21e | 1820 | #endif |
a687059c LW |
1821 | } |
1822 | return tot; | |
20408e3c | 1823 | |
20408e3c | 1824 | #undef APPLY_TAINT_PROPER |
a687059c LW |
1825 | } |
1826 | ||
1827 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1828 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae JH |
1829 | bool |
1830 | Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp) | |
1831 | /* Note: we use `effective' both for uids and gids. | |
1832 | * Here we are betting on Uid_t being equal or wider than Gid_t. */ | |
a687059c | 1833 | { |
bee1dbe2 | 1834 | #ifdef DOSISH |
fe14fcc3 LW |
1835 | /* [Comments and code from Len Reed] |
1836 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1837 | * to write-protected files. The execute permission bit is set | |
1838 | * by the Miscrosoft C library stat() function for the following: | |
1839 | * .exe files | |
1840 | * .com files | |
1841 | * .bat files | |
1842 | * directories | |
1843 | * All files and directories are readable. | |
1844 | * Directories and special files, e.g. "CON", cannot be | |
1845 | * write-protected. | |
1846 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1847 | * bit set in the file system, but DOS permits changes to | |
1848 | * the directory anyway. In addition, all bets are off | |
1849 | * here for networked software, such as Novell and | |
1850 | * Sun's PC-NFS.] | |
1851 | */ | |
1852 | ||
bee1dbe2 LW |
1853 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1854 | * too so it will actually look into the files for magic numbers | |
1855 | */ | |
7f4774ae | 1856 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 | 1857 | |
55497cff | 1858 | #else /* ! DOSISH */ |
3280af22 | 1859 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
7f4774ae | 1860 | if (mode == S_IXUSR) { |
c623bd54 | 1861 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c LW |
1862 | return TRUE; |
1863 | } | |
1864 | else | |
1865 | return TRUE; /* root reads and writes anything */ | |
1866 | return FALSE; | |
1867 | } | |
3280af22 | 1868 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
7f4774ae | 1869 | if (statbufp->st_mode & mode) |
a687059c LW |
1870 | return TRUE; /* ok as "user" */ |
1871 | } | |
d8eceb89 | 1872 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae | 1873 | if (statbufp->st_mode & mode >> 3) |
a687059c LW |
1874 | return TRUE; /* ok as "group" */ |
1875 | } | |
7f4774ae | 1876 | else if (statbufp->st_mode & mode >> 6) |
a687059c LW |
1877 | return TRUE; /* ok as "other" */ |
1878 | return FALSE; | |
55497cff | 1879 | #endif /* ! DOSISH */ |
a687059c | 1880 | } |
a0d0e21e | 1881 | #endif /* ! VMS */ |
a687059c | 1882 | |
d8eceb89 JH |
1883 | bool |
1884 | Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) | |
a687059c | 1885 | { |
cd39f2b6 JH |
1886 | #ifdef MACOS_TRADITIONAL |
1887 | /* This is simply not correct for AppleShare, but fix it yerself. */ | |
1888 | return TRUE; | |
1889 | #else | |
3280af22 | 1890 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c | 1891 | return TRUE; |
fe14fcc3 | 1892 | #ifdef HAS_GETGROUPS |
a687059c LW |
1893 | #ifndef NGROUPS |
1894 | #define NGROUPS 32 | |
1895 | #endif | |
1896 | { | |
a0d0e21e | 1897 | Groups_t gary[NGROUPS]; |
79072805 | 1898 | I32 anum; |
a687059c LW |
1899 | |
1900 | anum = getgroups(NGROUPS,gary); | |
1901 | while (--anum >= 0) | |
1902 | if (gary[anum] == testgid) | |
1903 | return TRUE; | |
1904 | } | |
1905 | #endif | |
1906 | return FALSE; | |
cd39f2b6 | 1907 | #endif |
a687059c | 1908 | } |
c2ab57d4 | 1909 | |
fe14fcc3 | 1910 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1911 | |
79072805 | 1912 | I32 |
864dbfa3 | 1913 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1914 | { |
c2ab57d4 | 1915 | key_t key; |
79072805 | 1916 | I32 n, flags; |
c2ab57d4 | 1917 | |
463ee0b2 LW |
1918 | key = (key_t)SvNVx(*++mark); |
1919 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1920 | flags = SvIVx(*++mark); | |
748a9306 | 1921 | SETERRNO(0,0); |
c2ab57d4 LW |
1922 | switch (optype) |
1923 | { | |
fe14fcc3 | 1924 | #ifdef HAS_MSG |
79072805 | 1925 | case OP_MSGGET: |
c2ab57d4 | 1926 | return msgget(key, flags); |
e5d73d77 | 1927 | #endif |
fe14fcc3 | 1928 | #ifdef HAS_SEM |
79072805 | 1929 | case OP_SEMGET: |
c2ab57d4 | 1930 | return semget(key, n, flags); |
e5d73d77 | 1931 | #endif |
fe14fcc3 | 1932 | #ifdef HAS_SHM |
79072805 | 1933 | case OP_SHMGET: |
c2ab57d4 | 1934 | return shmget(key, n, flags); |
e5d73d77 | 1935 | #endif |
fe14fcc3 | 1936 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1937 | default: |
cea2e8a9 | 1938 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 1939 | #endif |
c2ab57d4 LW |
1940 | } |
1941 | return -1; /* should never happen */ | |
1942 | } | |
1943 | ||
79072805 | 1944 | I32 |
864dbfa3 | 1945 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1946 | { |
79072805 | 1947 | SV *astr; |
c2ab57d4 | 1948 | char *a; |
a0d0e21e LW |
1949 | I32 id, n, cmd, infosize, getinfo; |
1950 | I32 ret = -1; | |
c2ab57d4 | 1951 | |
463ee0b2 LW |
1952 | id = SvIVx(*++mark); |
1953 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1954 | cmd = SvIVx(*++mark); | |
79072805 | 1955 | astr = *++mark; |
c2ab57d4 LW |
1956 | infosize = 0; |
1957 | getinfo = (cmd == IPC_STAT); | |
1958 | ||
1959 | switch (optype) | |
1960 | { | |
fe14fcc3 | 1961 | #ifdef HAS_MSG |
79072805 | 1962 | case OP_MSGCTL: |
c2ab57d4 LW |
1963 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1964 | infosize = sizeof(struct msqid_ds); | |
1965 | break; | |
e5d73d77 | 1966 | #endif |
fe14fcc3 | 1967 | #ifdef HAS_SHM |
79072805 | 1968 | case OP_SHMCTL: |
c2ab57d4 LW |
1969 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1970 | infosize = sizeof(struct shmid_ds); | |
1971 | break; | |
e5d73d77 | 1972 | #endif |
fe14fcc3 | 1973 | #ifdef HAS_SEM |
79072805 | 1974 | case OP_SEMCTL: |
39398f3f | 1975 | #ifdef Semctl |
c2ab57d4 LW |
1976 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1977 | infosize = sizeof(struct semid_ds); | |
1978 | else if (cmd == GETALL || cmd == SETALL) | |
1979 | { | |
8e591e46 | 1980 | struct semid_ds semds; |
bd89102f | 1981 | union semun semun; |
e6f0bdd6 GS |
1982 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1983 | semun.buff = &semds; | |
1984 | #else | |
84902520 | 1985 | semun.buf = &semds; |
e6f0bdd6 | 1986 | #endif |
c2ab57d4 | 1987 | getinfo = (cmd == GETALL); |
9b89d93d GB |
1988 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1989 | return -1; | |
6e21c824 LW |
1990 | infosize = semds.sem_nsems * sizeof(short); |
1991 | /* "short" is technically wrong but much more portable | |
1992 | than guessing about u_?short(_t)? */ | |
c2ab57d4 | 1993 | } |
39398f3f | 1994 | #else |
cea2e8a9 | 1995 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 1996 | #endif |
c2ab57d4 | 1997 | break; |
e5d73d77 | 1998 | #endif |
fe14fcc3 | 1999 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2000 | default: |
cea2e8a9 | 2001 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2002 | #endif |
c2ab57d4 LW |
2003 | } |
2004 | ||
2005 | if (infosize) | |
2006 | { | |
a0d0e21e | 2007 | STRLEN len; |
c2ab57d4 LW |
2008 | if (getinfo) |
2009 | { | |
a0d0e21e LW |
2010 | SvPV_force(astr, len); |
2011 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
2012 | } |
2013 | else | |
2014 | { | |
463ee0b2 LW |
2015 | a = SvPV(astr, len); |
2016 | if (len != infosize) | |
cea2e8a9 | 2017 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 JH |
2018 | PL_op_desc[optype], |
2019 | (unsigned long)len, | |
2020 | (long)infosize); | |
c2ab57d4 LW |
2021 | } |
2022 | } | |
2023 | else | |
2024 | { | |
c030ccd9 | 2025 | IV i = SvIV(astr); |
56431972 | 2026 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 | 2027 | } |
748a9306 | 2028 | SETERRNO(0,0); |
c2ab57d4 LW |
2029 | switch (optype) |
2030 | { | |
fe14fcc3 | 2031 | #ifdef HAS_MSG |
79072805 | 2032 | case OP_MSGCTL: |
bee1dbe2 | 2033 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 2034 | break; |
e5d73d77 | 2035 | #endif |
fe14fcc3 | 2036 | #ifdef HAS_SEM |
bd89102f | 2037 | case OP_SEMCTL: { |
39398f3f | 2038 | #ifdef Semctl |
bd89102f AD |
2039 | union semun unsemds; |
2040 | ||
e6f0bdd6 GS |
2041 | #ifdef EXTRA_F_IN_SEMUN_BUF |
2042 | unsemds.buff = (struct semid_ds *)a; | |
2043 | #else | |
bd89102f | 2044 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 | 2045 | #endif |
bd89102f | 2046 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f | 2047 | #else |
cea2e8a9 | 2048 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2049 | #endif |
bd89102f | 2050 | } |
c2ab57d4 | 2051 | break; |
e5d73d77 | 2052 | #endif |
fe14fcc3 | 2053 | #ifdef HAS_SHM |
79072805 | 2054 | case OP_SHMCTL: |
bee1dbe2 | 2055 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 2056 | break; |
e5d73d77 | 2057 | #endif |
c2ab57d4 LW |
2058 | } |
2059 | if (getinfo && ret >= 0) { | |
79072805 LW |
2060 | SvCUR_set(astr, infosize); |
2061 | *SvEND(astr) = '\0'; | |
a0d0e21e | 2062 | SvSETMAGIC(astr); |
c2ab57d4 LW |
2063 | } |
2064 | return ret; | |
2065 | } | |
2066 | ||
79072805 | 2067 | I32 |
864dbfa3 | 2068 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2069 | { |
fe14fcc3 | 2070 | #ifdef HAS_MSG |
79072805 | 2071 | SV *mstr; |
c2ab57d4 | 2072 | char *mbuf; |
79072805 | 2073 | I32 id, msize, flags; |
463ee0b2 | 2074 | STRLEN len; |
c2ab57d4 | 2075 | |
463ee0b2 | 2076 | id = SvIVx(*++mark); |
79072805 | 2077 | mstr = *++mark; |
463ee0b2 LW |
2078 | flags = SvIVx(*++mark); |
2079 | mbuf = SvPV(mstr, len); | |
2080 | if ((msize = len - sizeof(long)) < 0) | |
cea2e8a9 | 2081 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 | 2082 | SETERRNO(0,0); |
bee1dbe2 | 2083 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 2084 | #else |
cea2e8a9 | 2085 | Perl_croak(aTHX_ "msgsnd not implemented"); |
e5d73d77 | 2086 | #endif |
c2ab57d4 LW |
2087 | } |
2088 | ||
79072805 | 2089 | I32 |
864dbfa3 | 2090 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2091 | { |
fe14fcc3 | 2092 | #ifdef HAS_MSG |
79072805 | 2093 | SV *mstr; |
c2ab57d4 LW |
2094 | char *mbuf; |
2095 | long mtype; | |
79072805 | 2096 | I32 id, msize, flags, ret; |
463ee0b2 | 2097 | STRLEN len; |
79072805 | 2098 | |
463ee0b2 | 2099 | id = SvIVx(*++mark); |
79072805 | 2100 | mstr = *++mark; |
c2e66d9e GS |
2101 | /* suppress warning when reading into undef var --jhi */ |
2102 | if (! SvOK(mstr)) | |
2103 | sv_setpvn(mstr, "", 0); | |
463ee0b2 LW |
2104 | msize = SvIVx(*++mark); |
2105 | mtype = (long)SvIVx(*++mark); | |
2106 | flags = SvIVx(*++mark); | |
a0d0e21e LW |
2107 | SvPV_force(mstr, len); |
2108 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
a1d180c4 | 2109 | |
748a9306 | 2110 | SETERRNO(0,0); |
bee1dbe2 | 2111 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 2112 | if (ret >= 0) { |
79072805 LW |
2113 | SvCUR_set(mstr, sizeof(long)+ret); |
2114 | *SvEND(mstr) = '\0'; | |
41d6edb2 JH |
2115 | #ifndef INCOMPLETE_TAINTS |
2116 | /* who knows who has been playing with this message? */ | |
2117 | SvTAINTED_on(mstr); | |
2118 | #endif | |
c2ab57d4 LW |
2119 | } |
2120 | return ret; | |
e5d73d77 | 2121 | #else |
cea2e8a9 | 2122 | Perl_croak(aTHX_ "msgrcv not implemented"); |
e5d73d77 | 2123 | #endif |
c2ab57d4 LW |
2124 | } |
2125 | ||
79072805 | 2126 | I32 |
864dbfa3 | 2127 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2128 | { |
fe14fcc3 | 2129 | #ifdef HAS_SEM |
79072805 | 2130 | SV *opstr; |
c2ab57d4 | 2131 | char *opbuf; |
463ee0b2 LW |
2132 | I32 id; |
2133 | STRLEN opsize; | |
c2ab57d4 | 2134 | |
463ee0b2 | 2135 | id = SvIVx(*++mark); |
79072805 | 2136 | opstr = *++mark; |
463ee0b2 | 2137 | opbuf = SvPV(opstr, opsize); |
248ff010 NC |
2138 | if (opsize < 3 * SHORTSIZE |
2139 | || (opsize % (3 * SHORTSIZE))) { | |
93189314 | 2140 | SETERRNO(EINVAL,LIB_INVARG); |
c2ab57d4 LW |
2141 | return -1; |
2142 | } | |
748a9306 | 2143 | SETERRNO(0,0); |
248ff010 NC |
2144 | /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */ |
2145 | { | |
2146 | int nsops = opsize / (3 * sizeof (short)); | |
2147 | int i = nsops; | |
2148 | short *ops = (short *) opbuf; | |
2149 | short *o = ops; | |
2150 | struct sembuf *temps, *t; | |
2151 | I32 result; | |
2152 | ||
2153 | New (0, temps, nsops, struct sembuf); | |
2154 | t = temps; | |
2155 | while (i--) { | |
2156 | t->sem_num = *o++; | |
2157 | t->sem_op = *o++; | |
2158 | t->sem_flg = *o++; | |
2159 | t++; | |
2160 | } | |
2161 | result = semop(id, temps, nsops); | |
2162 | t = temps; | |
2163 | o = ops; | |
2164 | i = nsops; | |
2165 | while (i--) { | |
2166 | *o++ = t->sem_num; | |
2167 | *o++ = t->sem_op; | |
2168 | *o++ = t->sem_flg; | |
2169 | t++; | |
2170 | } | |
2171 | Safefree(temps); | |
2172 | return result; | |
2173 | } | |
e5d73d77 | 2174 | #else |
cea2e8a9 | 2175 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 | 2176 | #endif |
c2ab57d4 LW |
2177 | } |
2178 | ||
79072805 | 2179 | I32 |
864dbfa3 | 2180 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2181 | { |
fe14fcc3 | 2182 | #ifdef HAS_SHM |
79072805 | 2183 | SV *mstr; |
c2ab57d4 | 2184 | char *mbuf, *shm; |
79072805 | 2185 | I32 id, mpos, msize; |
463ee0b2 | 2186 | STRLEN len; |
c2ab57d4 | 2187 | struct shmid_ds shmds; |
c2ab57d4 | 2188 | |
463ee0b2 | 2189 | id = SvIVx(*++mark); |
79072805 | 2190 | mstr = *++mark; |
463ee0b2 LW |
2191 | mpos = SvIVx(*++mark); |
2192 | msize = SvIVx(*++mark); | |
748a9306 | 2193 | SETERRNO(0,0); |
c2ab57d4 LW |
2194 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
2195 | return -1; | |
2196 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
93189314 | 2197 | SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
2198 | return -1; |
2199 | } | |
8ac85365 | 2200 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
2201 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2202 | return -1; | |
79072805 | 2203 | if (optype == OP_SHMREAD) { |
9f538c04 GS |
2204 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
2205 | if (! SvOK(mstr)) | |
2206 | sv_setpvn(mstr, "", 0); | |
a0d0e21e LW |
2207 | SvPV_force(mstr, len); |
2208 | mbuf = SvGROW(mstr, msize+1); | |
2209 | ||
bee1dbe2 | 2210 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
2211 | SvCUR_set(mstr, msize); |
2212 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 2213 | SvSETMAGIC(mstr); |
d929ce6f JH |
2214 | #ifndef INCOMPLETE_TAINTS |
2215 | /* who knows who has been playing with this shared memory? */ | |
2216 | SvTAINTED_on(mstr); | |
2217 | #endif | |
c2ab57d4 LW |
2218 | } |
2219 | else { | |
79072805 | 2220 | I32 n; |
c2ab57d4 | 2221 | |
a0d0e21e | 2222 | mbuf = SvPV(mstr, len); |
463ee0b2 | 2223 | if ((n = len) > msize) |
c2ab57d4 | 2224 | n = msize; |
bee1dbe2 | 2225 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2226 | if (n < msize) |
bee1dbe2 | 2227 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2228 | } |
2229 | return shmdt(shm); | |
e5d73d77 | 2230 | #else |
cea2e8a9 | 2231 | Perl_croak(aTHX_ "shm I/O not implemented"); |
e5d73d77 | 2232 | #endif |
c2ab57d4 LW |
2233 | } |
2234 | ||
fe14fcc3 | 2235 | #endif /* SYSV IPC */ |
4e35701f | 2236 | |
0d44d22b | 2237 | /* |
ccfc67b7 JH |
2238 | =head1 IO Functions |
2239 | ||
0d44d22b NC |
2240 | =for apidoc start_glob |
2241 | ||
2242 | Function called by C<do_readline> to spawn a glob (or do the glob inside | |
2243 | perl on VMS). This code used to be inline, but now perl uses C<File::Glob> | |
210b36aa | 2244 | this glob starter is only used by miniperl during the build process. |
0d44d22b | 2245 | Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up. |
fab3f3a7 | 2246 | |
0d44d22b NC |
2247 | =cut |
2248 | */ | |
2249 | ||
2250 | PerlIO * | |
2251 | Perl_start_glob (pTHX_ SV *tmpglob, IO *io) | |
2252 | { | |
2253 | SV *tmpcmd = NEWSV(55, 0); | |
2254 | PerlIO *fp; | |
2255 | ENTER; | |
2256 | SAVEFREESV(tmpcmd); | |
2257 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
2258 | /* since spawning off a process is a real performance hit */ | |
2259 | { | |
2260 | #include <descrip.h> | |
2261 | #include <lib$routines.h> | |
2262 | #include <nam.h> | |
2263 | #include <rmsdef.h> | |
2264 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
2265 | char vmsspec[NAM$C_MAXRSS+1]; | |
2266 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
0d44d22b NC |
2267 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
2268 | PerlIO *tmpfp; | |
2269 | STRLEN i; | |
2270 | struct dsc$descriptor_s wilddsc | |
2271 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
2272 | struct dsc$descriptor_vs rsdsc | |
2273 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
2274 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
2275 | ||
2276 | /* We could find out if there's an explicit dev/dir or version | |
2277 | by peeking into lib$find_file's internal context at | |
2278 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
2279 | but that's unsupported, so I don't want to do it now and | |
2280 | have it bite someone in the future. */ | |
0d44d22b NC |
2281 | cp = SvPV(tmpglob,i); |
2282 | for (; i; i--) { | |
2283 | if (cp[i] == ';') hasver = 1; | |
2284 | if (cp[i] == '.') { | |
2285 | if (sts) hasver = 1; | |
2286 | else sts = 1; | |
2287 | } | |
2288 | if (cp[i] == '/') { | |
2289 | hasdir = isunix = 1; | |
2290 | break; | |
2291 | } | |
2292 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { | |
2293 | hasdir = 1; | |
2294 | break; | |
2295 | } | |
2296 | } | |
a15cef0c | 2297 | if ((tmpfp = PerlIO_tmpfile()) != NULL) { |
0d44d22b NC |
2298 | Stat_t st; |
2299 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) | |
2300 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); | |
2301 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
2302 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); | |
a3987cb8 JH |
2303 | for (cp=wilddsc.dsc$a_pointer; ok && cp && *cp; cp++) |
2304 | if (*cp == '?') *cp = '%'; /* VMS style single-char wildcard */ | |
0d44d22b NC |
2305 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
2306 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
3ce6b0cb CB |
2307 | /* with varying string, 1st word of buffer contains result length */ |
2308 | end = rstr + *((unsigned short int*)rslt); | |
2309 | if (!hasver) while (*end != ';' && end > rstr) end--; | |
0d44d22b NC |
2310 | *(end++) = '\n'; *end = '\0'; |
2311 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
2312 | if (hasdir) { | |
2313 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); | |
2314 | begin = rstr; | |
2315 | } | |
2316 | else { | |
2317 | begin = end; | |
2318 | while (*(--begin) != ']' && *begin != '>') ; | |
2319 | ++begin; | |
2320 | } | |
2321 | ok = (PerlIO_puts(tmpfp,begin) != EOF); | |
2322 | } | |
2323 | if (cxt) (void)lib$find_file_end(&cxt); | |
2324 | if (ok && sts != RMS$_NMF && | |
93189314 | 2325 | sts != RMS$_DNF && sts != RMS_FNF) ok = 0; |
0d44d22b NC |
2326 | if (!ok) { |
2327 | if (!(sts & 1)) { | |
2328 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
2329 | } | |
2330 | PerlIO_close(tmpfp); | |
2331 | fp = NULL; | |
2332 | } | |
2333 | else { | |
2334 | PerlIO_rewind(tmpfp); | |
2335 | IoTYPE(io) = IoTYPE_RDONLY; | |
2336 | IoIFP(io) = fp = tmpfp; | |
2337 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ | |
2338 | } | |
2339 | } | |
2340 | } | |
2341 | #else /* !VMS */ | |
2342 | #ifdef MACOS_TRADITIONAL | |
2343 | sv_setpv(tmpcmd, "glob "); | |
2344 | sv_catsv(tmpcmd, tmpglob); | |
2345 | sv_catpv(tmpcmd, " |"); | |
2346 | #else | |
2347 | #ifdef DOSISH | |
2348 | #ifdef OS2 | |
2349 | sv_setpv(tmpcmd, "for a in "); | |
2350 | sv_catsv(tmpcmd, tmpglob); | |
2351 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
2352 | #else | |
2353 | #ifdef DJGPP | |
2354 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
2355 | sv_catsv(tmpcmd, tmpglob); | |
2356 | #else | |
2357 | sv_setpv(tmpcmd, "perlglob "); | |
2358 | sv_catsv(tmpcmd, tmpglob); | |
2359 | sv_catpv(tmpcmd, " |"); | |
2360 | #endif /* !DJGPP */ | |
2361 | #endif /* !OS2 */ | |
2362 | #else /* !DOSISH */ | |
2363 | #if defined(CSH) | |
2364 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); | |
2365 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
2366 | sv_catsv(tmpcmd, tmpglob); | |
2367 | sv_catpv(tmpcmd, "' 2>/dev/null |"); | |
2368 | #else | |
2369 | sv_setpv(tmpcmd, "echo "); | |
2370 | sv_catsv(tmpcmd, tmpglob); | |
2371 | #if 'z' - 'a' == 25 | |
2372 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
2373 | #else | |
2374 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
2375 | #endif | |
2376 | #endif /* !CSH */ | |
2377 | #endif /* !DOSISH */ | |
2378 | #endif /* MACOS_TRADITIONAL */ | |
2379 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), | |
2380 | FALSE, O_RDONLY, 0, Nullfp); | |
2381 | fp = IoIFP(io); | |
2382 | #endif /* !VMS */ | |
2383 | LEAVE; | |
2384 | return fp; | |
2385 | } |