Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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 | /* | |
4ac71550 TC |
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. | |
16 | * | |
17 | * [p.684 of _The Lord of the Rings_, IV/vi: "The Forbidden Pool"] | |
a687059c LW |
18 | */ |
19 | ||
166f8a29 DM |
20 | /* This file contains functions that do the actual I/O on behalf of ops. |
21 | * For example, pp_print() calls the do_print() function in this file for | |
22 | * each argument needing printing. | |
23 | */ | |
24 | ||
a687059c | 25 | #include "EXTERN.h" |
864dbfa3 | 26 | #define PERL_IN_DOIO_C |
a687059c LW |
27 | #include "perl.h" |
28 | ||
fe14fcc3 | 29 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
aec308ec | 30 | #ifndef HAS_SEM |
c2ab57d4 | 31 | #include <sys/ipc.h> |
aec308ec | 32 | #endif |
fe14fcc3 | 33 | #ifdef HAS_MSG |
c2ab57d4 | 34 | #include <sys/msg.h> |
e5d73d77 | 35 | #endif |
fe14fcc3 | 36 | #ifdef HAS_SHM |
c2ab57d4 | 37 | #include <sys/shm.h> |
a0d0e21e | 38 | # ifndef HAS_SHMAT_PROTOTYPE |
20ce7b12 | 39 | extern Shmat_t shmat (int, char *, int); |
a0d0e21e | 40 | # endif |
c2ab57d4 | 41 | #endif |
e5d73d77 | 42 | #endif |
c2ab57d4 | 43 | |
663a0e37 | 44 | #ifdef I_UTIME |
3730b96e | 45 | # if defined(_MSC_VER) || defined(__MINGW32__) |
3fe9a6f1 | 46 | # include <sys/utime.h> |
47 | # else | |
48 | # include <utime.h> | |
49 | # endif | |
663a0e37 | 50 | #endif |
85aff577 | 51 | |
85aff577 CS |
52 | #ifdef O_EXCL |
53 | # define OPEN_EXCL O_EXCL | |
54 | #else | |
55 | # define OPEN_EXCL 0 | |
56 | #endif | |
a687059c | 57 | |
0c19750d SP |
58 | #define PERL_MODE_MAX 8 |
59 | #define PERL_FLAGS_MAX 10 | |
60 | ||
76121258 | 61 | #include <signal.h> |
76121258 | 62 | |
a2b41d5c NC |
63 | static IO * |
64 | S_openn_setup(pTHX_ GV *gv, char *mode, PerlIO **saveifp, PerlIO **saveofp, | |
65 | int *savefd, char *savetype) | |
a567e93b | 66 | { |
eb578fdb | 67 | IO * const io = GvIOn(gv); |
a687059c | 68 | |
a2b41d5c NC |
69 | PERL_ARGS_ASSERT_OPENN_SETUP; |
70 | ||
71 | *saveifp = NULL; | |
72 | *saveofp = NULL; | |
73 | *savefd = -1; | |
74 | *savetype = IoTYPE_CLOSED; | |
7918f24d | 75 | |
b931b1d9 | 76 | Zero(mode,sizeof(mode),char); |
3280af22 | 77 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 78 | |
b931b1d9 | 79 | /* If currently open - close before we re-open */ |
a0d0e21e | 80 | if (IoIFP(io)) { |
ee518936 NIS |
81 | if (IoTYPE(io) == IoTYPE_STD) { |
82 | /* This is a clone of one of STD* handles */ | |
ee518936 | 83 | } |
26297fe9 NC |
84 | else { |
85 | const int old_fd = PerlIO_fileno(IoIFP(io)); | |
86 | ||
87 | if (old_fd >= 0 && old_fd <= PL_maxsysfd) { | |
88 | /* This is one of the original STD* handles */ | |
a2b41d5c NC |
89 | *saveifp = IoIFP(io); |
90 | *saveofp = IoOFP(io); | |
91 | *savetype = IoTYPE(io); | |
92 | *savefd = old_fd; | |
26297fe9 NC |
93 | } |
94 | else { | |
95 | int result; | |
96 | ||
97 | if (IoTYPE(io) == IoTYPE_PIPE) | |
98 | result = PerlProc_pclose(IoIFP(io)); | |
99 | else if (IoIFP(io) != IoOFP(io)) { | |
100 | if (IoOFP(io)) { | |
101 | result = PerlIO_close(IoOFP(io)); | |
102 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
103 | } | |
104 | else | |
105 | result = PerlIO_close(IoIFP(io)); | |
106 | } | |
107 | else | |
108 | result = PerlIO_close(IoIFP(io)); | |
109 | ||
110 | if (result == EOF && old_fd > PL_maxsysfd) { | |
111 | /* Why is this not Perl_warn*() call ? */ | |
112 | PerlIO_printf(Perl_error_log, | |
147e3846 KW |
113 | "Warning: unable to close filehandle %" HEKf |
114 | " properly.\n", | |
26297fe9 NC |
115 | HEKfARG(GvENAME_HEK(gv)) |
116 | ); | |
117 | } | |
118 | } | |
119 | } | |
4608196e | 120 | IoOFP(io) = IoIFP(io) = NULL; |
a687059c | 121 | } |
a2b41d5c NC |
122 | return io; |
123 | } | |
124 | ||
125 | bool | |
126 | Perl_do_openn(pTHX_ GV *gv, const char *oname, I32 len, int as_raw, | |
127 | int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, | |
128 | I32 num_svs) | |
129 | { | |
4b451737 NC |
130 | PERL_ARGS_ASSERT_DO_OPENN; |
131 | ||
132 | if (as_raw) { | |
133 | /* sysopen style args, i.e. integer mode and permissions */ | |
134 | ||
135 | if (num_svs != 0) { | |
136 | Perl_croak(aTHX_ "panic: sysopen with multiple args, num_svs=%ld", | |
137 | (long) num_svs); | |
138 | } | |
7e30e49f | 139 | return do_open_raw(gv, oname, len, rawmode, rawperm, NULL); |
4b451737 NC |
140 | } |
141 | return do_open6(gv, oname, len, supplied_fp, svp, num_svs); | |
142 | } | |
143 | ||
144 | bool | |
145 | Perl_do_open_raw(pTHX_ GV *gv, const char *oname, STRLEN len, | |
7e30e49f | 146 | int rawmode, int rawperm, Stat_t *statbufp) |
4b451737 | 147 | { |
a2b41d5c NC |
148 | PerlIO *saveifp; |
149 | PerlIO *saveofp; | |
150 | int savefd; | |
151 | char savetype; | |
152 | char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */ | |
153 | IO * const io = openn_setup(gv, mode, &saveifp, &saveofp, &savefd, &savetype); | |
154 | int writing = 0; | |
155 | PerlIO *fp; | |
a2b41d5c | 156 | |
4b451737 | 157 | PERL_ARGS_ASSERT_DO_OPEN_RAW; |
c07a80fd | 158 | |
4b451737 NC |
159 | /* For ease of blame back to 5.000, keep the existing indenting. */ |
160 | { | |
b931b1d9 | 161 | /* sysopen style args, i.e. integer mode and permissions */ |
ee518936 | 162 | STRLEN ix = 0; |
e1ec3a88 | 163 | const int appendtrunc = |
3dccc55c | 164 | 0 |
d1da7611 | 165 | #ifdef O_APPEND /* Not fully portable. */ |
3dccc55c | 166 | |O_APPEND |
d1da7611 JH |
167 | #endif |
168 | #ifdef O_TRUNC /* Not fully portable. */ | |
3dccc55c | 169 | |O_TRUNC |
d1da7611 | 170 | #endif |
3dccc55c | 171 | ; |
6867be6d | 172 | const int modifyingmode = O_WRONLY|O_RDWR|O_CREAT|appendtrunc; |
3dccc55c | 173 | int ismodifying; |
9229bf8d | 174 | SV *namesv; |
3dccc55c | 175 | |
3dccc55c JH |
176 | /* It's not always |
177 | ||
178 | O_RDONLY 0 | |
179 | O_WRONLY 1 | |
180 | O_RDWR 2 | |
181 | ||
182 | It might be (in OS/390 and Mac OS Classic it is) | |
183 | ||
184 | O_WRONLY 1 | |
185 | O_RDONLY 2 | |
186 | O_RDWR 3 | |
187 | ||
188 | This means that simple & with O_RDWR would look | |
189 | like O_RDONLY is present. Therefore we have to | |
190 | be more careful. | |
191 | */ | |
192 | if ((ismodifying = (rawmode & modifyingmode))) { | |
193 | if ((ismodifying & O_WRONLY) == O_WRONLY || | |
194 | (ismodifying & O_RDWR) == O_RDWR || | |
195 | (ismodifying & (O_CREAT|appendtrunc))) | |
196 | TAINT_PROPER("sysopen"); | |
197 | } | |
3b6c1aba | 198 | mode[ix++] = IoTYPE_NUMERIC; /* Marker to openn to use numeric "sysopen" */ |
b931b1d9 | 199 | |
09458382 | 200 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
b94c04ac | 201 | rawmode |= O_LARGEFILE; /* Transparently largefiley. */ |
5ff3f7a4 GS |
202 | #endif |
203 | ||
06c7082d | 204 | IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing); |
ee518936 | 205 | |
59cd0e26 | 206 | namesv = newSVpvn_flags(oname, len, SVs_TEMP); |
4b451737 | 207 | fp = PerlIO_openn(aTHX_ NULL, mode, -1, rawmode, rawperm, NULL, 1, &namesv); |
a687059c | 208 | } |
4b451737 | 209 | return openn_cleanup(gv, io, fp, mode, oname, saveifp, saveofp, savefd, |
7e30e49f | 210 | savetype, writing, 0, NULL, statbufp); |
4b451737 NC |
211 | } |
212 | ||
213 | bool | |
214 | Perl_do_open6(pTHX_ GV *gv, const char *oname, STRLEN len, | |
215 | PerlIO *supplied_fp, SV **svp, U32 num_svs) | |
216 | { | |
4b451737 NC |
217 | PerlIO *saveifp; |
218 | PerlIO *saveofp; | |
219 | int savefd; | |
220 | char savetype; | |
221 | char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */ | |
222 | IO * const io = openn_setup(gv, mode, &saveifp, &saveofp, &savefd, &savetype); | |
223 | int writing = 0; | |
224 | PerlIO *fp; | |
225 | bool was_fdopen = FALSE; | |
226 | char *type = NULL; | |
227 | ||
228 | PERL_ARGS_ASSERT_DO_OPEN6; | |
229 | ||
230 | /* For ease of blame back to 5.000, keep the existing indenting. */ | |
231 | { | |
b931b1d9 | 232 | /* Regular (non-sys) open */ |
2fbb330f | 233 | char *name; |
faecd977 | 234 | STRLEN olen = len; |
b931b1d9 NIS |
235 | char *tend; |
236 | int dodup = 0; | |
c564b489 NC |
237 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
238 | ||
239 | /* Collect default raw/crlf info from the op */ | |
240 | if (PL_op && PL_op->op_type == OP_OPEN) { | |
241 | /* set up IO layers */ | |
242 | const U8 flags = PL_op->op_private; | |
243 | in_raw = (flags & OPpOPEN_IN_RAW); | |
244 | in_crlf = (flags & OPpOPEN_IN_CRLF); | |
245 | out_raw = (flags & OPpOPEN_OUT_RAW); | |
246 | out_crlf = (flags & OPpOPEN_OUT_CRLF); | |
247 | } | |
c07a80fd | 248 | |
2fbb330f | 249 | type = savepvn(oname, len); |
b931b1d9 | 250 | tend = type+len; |
faecd977 | 251 | SAVEFREEPV(type); |
eb649f83 AMS |
252 | |
253 | /* Lose leading and trailing white space */ | |
294b3b39 AL |
254 | while (isSPACE(*type)) |
255 | type++; | |
eb649f83 AMS |
256 | while (tend > type && isSPACE(tend[-1])) |
257 | *--tend = '\0'; | |
258 | ||
6170680b | 259 | if (num_svs) { |
41188aa0 TC |
260 | const char *p; |
261 | STRLEN nlen = 0; | |
c2be40b1 | 262 | /* New style explicit name, type is just mode and layer info */ |
9a869a14 | 263 | #ifdef USE_STDIO |
2fbb330f | 264 | if (SvROK(*svp) && !strchr(oname,'&')) { |
9a869a14 RGS |
265 | if (ckWARN(WARN_IO)) |
266 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
267 | "Can't open a reference"); | |
93189314 | 268 | SETERRNO(EINVAL, LIB_INVARG); |
a6fc70e5 | 269 | fp = NULL; |
9a869a14 RGS |
270 | goto say_false; |
271 | } | |
272 | #endif /* USE_STDIO */ | |
41188aa0 TC |
273 | p = (SvOK(*svp) || SvGMAGICAL(*svp)) ? SvPV(*svp, nlen) : NULL; |
274 | ||
a6fc70e5 NC |
275 | if (p && !IS_SAFE_PATHNAME(p, nlen, "open")) { |
276 | fp = NULL; | |
c8028aa6 | 277 | goto say_false; |
a6fc70e5 | 278 | } |
c8028aa6 | 279 | |
41188aa0 TC |
280 | name = p ? savepvn(p, nlen) : savepvs(""); |
281 | ||
faecd977 | 282 | SAVEFREEPV(name); |
6170680b | 283 | } |
faecd977 | 284 | else { |
faecd977 | 285 | name = type; |
b931b1d9 | 286 | len = tend-type; |
faecd977 | 287 | } |
6170680b | 288 | IoTYPE(io) = *type; |
516a5887 | 289 | if ((*type == IoTYPE_RDWR) && /* scary */ |
01a8ea99 | 290 | (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) && |
516a5887 | 291 | ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) { |
c2be40b1 | 292 | TAINT_PROPER("open"); |
6170680b | 293 | mode[1] = *type++; |
c07a80fd | 294 | writing = 1; |
a687059c | 295 | } |
c07a80fd | 296 | |
9f37169a | 297 | if (*type == IoTYPE_PIPE) { |
b931b1d9 NIS |
298 | if (num_svs) { |
299 | if (type[1] != IoTYPE_STD) { | |
c2be40b1 | 300 | unknown_open_mode: |
b931b1d9 NIS |
301 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); |
302 | } | |
303 | type++; | |
6170680b | 304 | } |
294b3b39 AL |
305 | do { |
306 | type++; | |
307 | } while (isSPACE(*type)); | |
faecd977 | 308 | if (!num_svs) { |
6170680b | 309 | name = type; |
b931b1d9 | 310 | len = tend-type; |
faecd977 | 311 | } |
4a7d1889 NIS |
312 | if (*name == '\0') { |
313 | /* command is missing 19990114 */ | |
06eaf0bc | 314 | if (ckWARN(WARN_PIPE)) |
9014280d | 315 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc | 316 | errno = EPIPE; |
a6fc70e5 | 317 | fp = NULL; |
06eaf0bc GS |
318 | goto say_false; |
319 | } | |
f27977c3 | 320 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
c07a80fd | 321 | TAINT_ENV(); |
322 | TAINT_PROPER("piped open"); | |
b931b1d9 | 323 | if (!num_svs && name[len-1] == '|') { |
faecd977 | 324 | name[--len] = '\0' ; |
599cee73 | 325 | if (ckWARN(WARN_PIPE)) |
9014280d | 326 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe"); |
7b8d334a | 327 | } |
a1d180c4 | 328 | mode[0] = 'w'; |
c07a80fd | 329 | writing = 1; |
0c19750d | 330 | if (out_raw) |
5686ee58 | 331 | mode[1] = 'b'; |
0c19750d | 332 | else if (out_crlf) |
5686ee58 | 333 | mode[1] = 't'; |
4a7d1889 NIS |
334 | if (num_svs > 1) { |
335 | fp = PerlProc_popen_list(mode, num_svs, svp); | |
336 | } | |
337 | else { | |
338 | fp = PerlProc_popen(name,mode); | |
339 | } | |
1771866f NIS |
340 | if (num_svs) { |
341 | if (*type) { | |
342 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
a6fc70e5 | 343 | fp = NULL; |
1771866f NIS |
344 | goto say_false; |
345 | } | |
346 | } | |
347 | } | |
c2be40b1 | 348 | } /* IoTYPE_PIPE */ |
9f37169a | 349 | else if (*type == IoTYPE_WRONLY) { |
c07a80fd | 350 | TAINT_PROPER("open"); |
6170680b | 351 | type++; |
9f37169a JH |
352 | if (*type == IoTYPE_WRONLY) { |
353 | /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ | |
50952442 | 354 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b | 355 | type++; |
a0d0e21e | 356 | } |
ee518936 | 357 | else { |
c07a80fd | 358 | mode[0] = 'w'; |
ee518936 | 359 | } |
c07a80fd | 360 | writing = 1; |
361 | ||
0c19750d | 362 | if (out_raw) |
5686ee58 | 363 | mode[1] = 'b'; |
0c19750d | 364 | else if (out_crlf) |
5686ee58 | 365 | mode[1] = 't'; |
6170680b | 366 | if (*type == '&') { |
c07a80fd | 367 | duplicity: |
ecdeb87c | 368 | dodup = PERLIO_DUP_FD; |
e620cd72 NIS |
369 | type++; |
370 | if (*type == '=') { | |
c07a80fd | 371 | dodup = 0; |
e620cd72 | 372 | type++; |
4a7d1889 | 373 | } |
ee518936 | 374 | if (!num_svs && !*type && supplied_fp) { |
4a7d1889 | 375 | /* "<+&" etc. is used by typemaps */ |
c07a80fd | 376 | fp = supplied_fp; |
ee518936 | 377 | } |
a0d0e21e | 378 | else { |
35da51f7 | 379 | PerlIO *that_fp = NULL; |
b4464d55 | 380 | int wanted_fd; |
22ff3130 | 381 | UV uv; |
e620cd72 | 382 | if (num_svs > 1) { |
fe13d51d | 383 | /* diag_listed_as: More than one argument to '%s' open */ |
e620cd72 NIS |
384 | Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); |
385 | } | |
294b3b39 AL |
386 | while (isSPACE(*type)) |
387 | type++; | |
f90b7232 FC |
388 | if (num_svs && ( |
389 | SvIOK(*svp) | |
390 | || (SvPOKp(*svp) && looks_like_number(*svp)) | |
391 | )) { | |
b4464d55 | 392 | wanted_fd = SvUV(*svp); |
24a7a40d | 393 | num_svs = 0; |
ee518936 | 394 | } |
22ff3130 HS |
395 | else if (isDIGIT(*type) |
396 | && grok_atoUV(type, &uv, NULL) | |
397 | && uv <= INT_MAX | |
398 | ) { | |
399 | wanted_fd = (int)uv; | |
e620cd72 | 400 | } |
c07a80fd | 401 | else { |
e1ec3a88 | 402 | const IO* thatio; |
e620cd72 NIS |
403 | if (num_svs) { |
404 | thatio = sv_2io(*svp); | |
405 | } | |
406 | else { | |
35da51f7 | 407 | GV * const thatgv = gv_fetchpvn_flags(type, tend - type, |
90e5519e | 408 | 0, SVt_PVIO); |
e620cd72 NIS |
409 | thatio = GvIO(thatgv); |
410 | } | |
c07a80fd | 411 | if (!thatio) { |
6e21c824 | 412 | #ifdef EINVAL |
93189314 | 413 | SETERRNO(EINVAL,SS_IVCHAN); |
6e21c824 | 414 | #endif |
a6fc70e5 | 415 | fp = NULL; |
c07a80fd | 416 | goto say_false; |
417 | } | |
f4e789af | 418 | if ((that_fp = IoIFP(thatio))) { |
7211d486 JH |
419 | /* Flush stdio buffer before dup. --mjd |
420 | * Unfortunately SEEK_CURing 0 seems to | |
421 | * be optimized away on most platforms; | |
422 | * only Solaris and Linux seem to flush | |
423 | * on that. --jhi */ | |
7211d486 JH |
424 | /* On the other hand, do all platforms |
425 | * take gracefully to flushing a read-only | |
426 | * filehandle? Perhaps we should do | |
427 | * fsetpos(src)+fgetpos(dst)? --nik */ | |
ecdeb87c | 428 | PerlIO_flush(that_fp); |
b4464d55 | 429 | wanted_fd = PerlIO_fileno(that_fp); |
0759c907 JH |
430 | /* When dup()ing STDIN, STDOUT or STDERR |
431 | * explicitly set appropriate access mode */ | |
f4e789af NC |
432 | if (that_fp == PerlIO_stdout() |
433 | || that_fp == PerlIO_stderr()) | |
0759c907 | 434 | IoTYPE(io) = IoTYPE_WRONLY; |
f4e789af | 435 | else if (that_fp == PerlIO_stdin()) |
0759c907 JH |
436 | IoTYPE(io) = IoTYPE_RDONLY; |
437 | /* When dup()ing a socket, say result is | |
438 | * one as well */ | |
439 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) | |
50952442 | 440 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd | 441 | } |
0c9375a5 TC |
442 | else { |
443 | SETERRNO(EBADF, RMS_IFI); | |
444 | fp = NULL; | |
445 | goto say_false; | |
446 | } | |
a0d0e21e | 447 | } |
ee518936 | 448 | if (!num_svs) |
bd61b366 | 449 | type = NULL; |
ecdeb87c NIS |
450 | if (that_fp) { |
451 | fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup); | |
452 | } | |
453 | else { | |
c07a80fd | 454 | if (dodup) |
b4464d55 | 455 | wanted_fd = PerlLIO_dup(wanted_fd); |
ecdeb87c NIS |
456 | else |
457 | was_fdopen = TRUE; | |
b4464d55 NC |
458 | if (!(fp = PerlIO_openn(aTHX_ type,mode,wanted_fd,0,0,NULL,num_svs,svp))) { |
459 | if (dodup && wanted_fd >= 0) | |
460 | PerlLIO_close(wanted_fd); | |
ecdeb87c | 461 | } |
faecd977 | 462 | } |
c07a80fd | 463 | } |
ee518936 | 464 | } /* & */ |
c07a80fd | 465 | else { |
294b3b39 AL |
466 | while (isSPACE(*type)) |
467 | type++; | |
b931b1d9 | 468 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
b931b1d9 | 469 | type++; |
760ac839 | 470 | fp = PerlIO_stdout(); |
50952442 | 471 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb | 472 | if (num_svs > 1) { |
fe13d51d | 473 | /* diag_listed_as: More than one argument to '%s' open */ |
7cf31beb NIS |
474 | Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD); |
475 | } | |
c07a80fd | 476 | } |
477 | else { | |
9229bf8d NC |
478 | if (num_svs) { |
479 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
480 | } | |
481 | else { | |
482 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 483 | type = NULL; |
9229bf8d | 484 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 485 | } |
c07a80fd | 486 | } |
ee518936 | 487 | } /* !& */ |
7e72d509 JH |
488 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
489 | goto unknown_open_mode; | |
c2be40b1 | 490 | } /* IoTYPE_WRONLY */ |
9f37169a | 491 | else if (*type == IoTYPE_RDONLY) { |
294b3b39 AL |
492 | do { |
493 | type++; | |
494 | } while (isSPACE(*type)); | |
bf38876a | 495 | mode[0] = 'r'; |
0c19750d | 496 | if (in_raw) |
5686ee58 | 497 | mode[1] = 'b'; |
0c19750d | 498 | else if (in_crlf) |
5686ee58 | 499 | mode[1] = 't'; |
6170680b | 500 | if (*type == '&') { |
bf38876a | 501 | goto duplicity; |
6170680b | 502 | } |
b931b1d9 | 503 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
b931b1d9 | 504 | type++; |
760ac839 | 505 | fp = PerlIO_stdin(); |
50952442 | 506 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb | 507 | if (num_svs > 1) { |
fe13d51d | 508 | /* diag_listed_as: More than one argument to '%s' open */ |
7cf31beb NIS |
509 | Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD); |
510 | } | |
a687059c | 511 | } |
ee518936 | 512 | else { |
9229bf8d NC |
513 | if (num_svs) { |
514 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
515 | } | |
516 | else { | |
517 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 518 | type = NULL; |
9229bf8d | 519 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 520 | } |
ee518936 | 521 | } |
7e72d509 JH |
522 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
523 | goto unknown_open_mode; | |
c2be40b1 JH |
524 | } /* IoTYPE_RDONLY */ |
525 | else if ((num_svs && /* '-|...' or '...|' */ | |
526 | type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || | |
b931b1d9 | 527 | (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { |
6170680b | 528 | if (num_svs) { |
b931b1d9 | 529 | type += 2; /* skip over '-|' */ |
6170680b IZ |
530 | } |
531 | else { | |
b931b1d9 NIS |
532 | *--tend = '\0'; |
533 | while (tend > type && isSPACE(tend[-1])) | |
534 | *--tend = '\0'; | |
a6e20a40 AL |
535 | for (; isSPACE(*type); type++) |
536 | ; | |
6170680b | 537 | name = type; |
b931b1d9 | 538 | len = tend-type; |
6170680b | 539 | } |
4a7d1889 NIS |
540 | if (*name == '\0') { |
541 | /* command is missing 19990114 */ | |
06eaf0bc | 542 | if (ckWARN(WARN_PIPE)) |
9014280d | 543 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc | 544 | errno = EPIPE; |
a6fc70e5 | 545 | fp = NULL; |
06eaf0bc GS |
546 | goto say_false; |
547 | } | |
770526c1 | 548 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
79072805 LW |
549 | TAINT_ENV(); |
550 | TAINT_PROPER("piped open"); | |
a1d180c4 | 551 | mode[0] = 'r'; |
0c19750d | 552 | |
0c19750d | 553 | if (in_raw) |
5686ee58 | 554 | mode[1] = 'b'; |
0c19750d | 555 | else if (in_crlf) |
5686ee58 | 556 | mode[1] = 't'; |
0c19750d | 557 | |
4a7d1889 NIS |
558 | if (num_svs > 1) { |
559 | fp = PerlProc_popen_list(mode,num_svs,svp); | |
560 | } | |
e620cd72 | 561 | else { |
4a7d1889 NIS |
562 | fp = PerlProc_popen(name,mode); |
563 | } | |
50952442 | 564 | IoTYPE(io) = IoTYPE_PIPE; |
1771866f | 565 | if (num_svs) { |
294b3b39 AL |
566 | while (isSPACE(*type)) |
567 | type++; | |
1771866f NIS |
568 | if (*type) { |
569 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
a6fc70e5 | 570 | fp = NULL; |
1771866f NIS |
571 | goto say_false; |
572 | } | |
573 | } | |
574 | } | |
a687059c | 575 | } |
c2be40b1 | 576 | else { /* layer(Args) */ |
6170680b | 577 | if (num_svs) |
c2be40b1 | 578 | goto unknown_open_mode; |
6170680b | 579 | name = type; |
50952442 | 580 | IoTYPE(io) = IoTYPE_RDONLY; |
a6e20a40 AL |
581 | for (; isSPACE(*name); name++) |
582 | ; | |
88b61e10 | 583 | mode[0] = 'r'; |
0c19750d | 584 | |
0c19750d | 585 | if (in_raw) |
5686ee58 | 586 | mode[1] = 'b'; |
0c19750d | 587 | else if (in_crlf) |
5686ee58 | 588 | mode[1] = 't'; |
0c19750d | 589 | |
770526c1 | 590 | if (*name == '-' && name[1] == '\0') { |
760ac839 | 591 | fp = PerlIO_stdin(); |
50952442 | 592 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 593 | } |
16fe6d59 | 594 | else { |
9229bf8d NC |
595 | if (num_svs) { |
596 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
597 | } | |
598 | else { | |
599 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 600 | type = NULL; |
9229bf8d | 601 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 602 | } |
16fe6d59 | 603 | } |
a687059c LW |
604 | } |
605 | } | |
a6fc70e5 NC |
606 | |
607 | say_false: | |
608 | return openn_cleanup(gv, io, fp, mode, oname, saveifp, saveofp, savefd, | |
7e30e49f | 609 | savetype, writing, was_fdopen, type, NULL); |
a6fc70e5 NC |
610 | } |
611 | ||
612 | /* Yes, this is ugly, but it's private, and I don't see a cleaner way to | |
613 | simplify the two-headed public interface of do_openn. */ | |
614 | static bool | |
615 | S_openn_cleanup(pTHX_ GV *gv, IO *io, PerlIO *fp, char *mode, const char *oname, | |
616 | PerlIO *saveifp, PerlIO *saveofp, int savefd, char savetype, | |
7e30e49f | 617 | int writing, bool was_fdopen, const char *type, Stat_t *statbufp) |
a6fc70e5 NC |
618 | { |
619 | int fd; | |
7e30e49f | 620 | Stat_t statbuf; |
a6fc70e5 NC |
621 | |
622 | PERL_ARGS_ASSERT_OPENN_CLEANUP; | |
623 | ||
bee1dbe2 | 624 | if (!fp) { |
ce44635a | 625 | if (IoTYPE(io) == IoTYPE_RDONLY && ckWARN(WARN_NEWLINE) |
7cb3f959 | 626 | && should_warn_nl(oname) |
ce44635a | 627 | |
041457d9 | 628 | ) |
5d37acd6 DM |
629 | { |
630 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ | |
9014280d | 631 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); |
5d37acd6 DM |
632 | GCC_DIAG_RESTORE; |
633 | } | |
6e21c824 | 634 | goto say_false; |
bee1dbe2 | 635 | } |
a00b5bd3 NIS |
636 | |
637 | if (ckWARN(WARN_IO)) { | |
638 | if ((IoTYPE(io) == IoTYPE_RDONLY) && | |
639 | (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { | |
9014280d | 640 | Perl_warner(aTHX_ packWARN(WARN_IO), |
147e3846 | 641 | "Filehandle STD%s reopened as %" HEKf |
d0c0e7dd | 642 | " only for input", |
97828cef | 643 | ((fp == PerlIO_stdout()) ? "OUT" : "ERR"), |
d0c0e7dd | 644 | HEKfARG(GvENAME_HEK(gv))); |
a00b5bd3 | 645 | } |
ee518936 | 646 | else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { |
9014280d | 647 | Perl_warner(aTHX_ packWARN(WARN_IO), |
147e3846 | 648 | "Filehandle STDIN reopened as %" HEKf " only for output", |
d0c0e7dd FC |
649 | HEKfARG(GvENAME_HEK(gv)) |
650 | ); | |
a00b5bd3 NIS |
651 | } |
652 | } | |
653 | ||
e99cca91 | 654 | fd = PerlIO_fileno(fp); |
375ed12a JH |
655 | /* Do NOT do: "if (fd < 0) goto say_false;" here. If there is no |
656 | * fd assume it isn't a socket - this covers PerlIO::scalar - | |
657 | * otherwise unless we "know" the type probe for socket-ness. | |
e99cca91 NIS |
658 | */ |
659 | if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) { | |
7e30e49f | 660 | if (PerlLIO_fstat(fd,&statbuf) < 0) { |
e99cca91 NIS |
661 | /* If PerlIO claims to have fd we had better be able to fstat() it. */ |
662 | (void) PerlIO_close(fp); | |
6e21c824 | 663 | goto say_false; |
a687059c | 664 | } |
7114a2d2 | 665 | #ifndef PERL_MICRO |
7e30e49f | 666 | if (S_ISSOCK(statbuf.st_mode)) |
50952442 | 667 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 LW |
668 | #ifdef HAS_SOCKET |
669 | else if ( | |
7e30e49f | 670 | !(statbuf.st_mode & S_IFMT) |
0759c907 JH |
671 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
672 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ | |
673 | ) { /* on OS's that return 0 on fstat()ed pipe */ | |
e99cca91 NIS |
674 | char tmpbuf[256]; |
675 | Sock_size_t buflen = sizeof tmpbuf; | |
676 | if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0 | |
677 | || errno != ENOTSOCK) | |
678 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ | |
679 | /* but some return 0 for streams too, sigh */ | |
99b89507 | 680 | } |
e99cca91 | 681 | #endif /* HAS_SOCKET */ |
7114a2d2 | 682 | #endif /* !PERL_MICRO */ |
a687059c | 683 | } |
e99cca91 NIS |
684 | |
685 | /* Eeek - FIXME !!! | |
686 | * If this is a standard handle we discard all the layer stuff | |
687 | * and just dup the fd into whatever was on the handle before ! | |
688 | */ | |
689 | ||
6e21c824 | 690 | if (saveifp) { /* must use old fp? */ |
f5b9d040 | 691 | /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR |
24c23ab4 | 692 | then dup the new fileno down |
f5b9d040 | 693 | */ |
6e21c824 | 694 | if (saveofp) { |
f5b9d040 | 695 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 696 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 697 | PerlIO_close(saveofp); |
6e21c824 LW |
698 | } |
699 | } | |
6e60e805 | 700 | if (savefd != fd) { |
e934609f | 701 | /* Still a small can-of-worms here if (say) PerlIO::scalar |
ecdeb87c NIS |
702 | is assigned to (say) STDOUT - for now let dup2() fail |
703 | and provide the error | |
704 | */ | |
375ed12a JH |
705 | if (fd < 0) { |
706 | SETERRNO(EBADF,RMS_IFI); | |
707 | goto say_false; | |
708 | } else if (PerlLIO_dup2(fd, savefd) < 0) { | |
bd4a5668 NIS |
709 | (void)PerlIO_close(fp); |
710 | goto say_false; | |
711 | } | |
d082dcd6 | 712 | #ifdef VMS |
6e60e805 | 713 | if (savefd != PerlIO_fileno(PerlIO_stdin())) { |
d0e2cf63 AMS |
714 | char newname[FILENAME_MAX+1]; |
715 | if (PerlIO_getname(fp, newname)) { | |
716 | if (fd == PerlIO_fileno(PerlIO_stdout())) | |
0db50132 | 717 | vmssetuserlnm("SYS$OUTPUT", newname); |
d0e2cf63 | 718 | if (fd == PerlIO_fileno(PerlIO_stderr())) |
0db50132 | 719 | vmssetuserlnm("SYS$ERROR", newname); |
d0e2cf63 | 720 | } |
d082dcd6 JH |
721 | } |
722 | #endif | |
d0e2cf63 AMS |
723 | |
724 | #if !defined(WIN32) | |
725 | /* PL_fdpid isn't used on Windows, so avoid this useless work. | |
726 | * XXX Probably the same for a lot of other places. */ | |
727 | { | |
728 | Pid_t pid; | |
729 | SV *sv; | |
730 | ||
d0e2cf63 | 731 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
862a34c6 | 732 | SvUPGRADE(sv, SVt_IV); |
d0e2cf63 | 733 | pid = SvIVX(sv); |
45977657 | 734 | SvIV_set(sv, 0); |
d0e2cf63 | 735 | sv = *av_fetch(PL_fdpid,savefd,TRUE); |
862a34c6 | 736 | SvUPGRADE(sv, SVt_IV); |
45977657 | 737 | SvIV_set(sv, pid); |
d0e2cf63 AMS |
738 | } |
739 | #endif | |
740 | ||
e212fc47 AMS |
741 | if (was_fdopen) { |
742 | /* need to close fp without closing underlying fd */ | |
743 | int ofd = PerlIO_fileno(fp); | |
375ed12a | 744 | int dupfd = ofd >= 0 ? PerlLIO_dup(ofd) : -1; |
03e631df | 745 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5798d631 JH |
746 | /* Assume if we have F_SETFD we have F_GETFD. */ |
747 | /* Get a copy of all the fd flags. */ | |
748 | int fd_flags = ofd >= 0 ? fcntl(ofd, F_GETFD) : -1; | |
749 | if (fd_flags < 0) { | |
375ed12a JH |
750 | if (dupfd >= 0) |
751 | PerlLIO_close(dupfd); | |
752 | goto say_false; | |
753 | } | |
03e631df | 754 | #endif |
375ed12a JH |
755 | if (ofd < 0 || dupfd < 0) { |
756 | if (dupfd >= 0) | |
757 | PerlLIO_close(dupfd); | |
758 | goto say_false; | |
759 | } | |
e212fc47 | 760 | PerlIO_close(fp); |
375ed12a | 761 | PerlLIO_dup2(dupfd, ofd); |
03e631df | 762 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
5798d631 JH |
763 | /* The dup trick has lost close-on-exec on ofd, |
764 | * and possibly any other flags, so restore them. */ | |
57d92825 JH |
765 | if (fcntl(ofd,F_SETFD, fd_flags) < 0) { |
766 | if (dupfd >= 0) | |
767 | PerlLIO_close(dupfd); | |
768 | goto say_false; | |
769 | } | |
03e631df | 770 | #endif |
e212fc47 | 771 | PerlLIO_close(dupfd); |
ecdeb87c | 772 | } |
e212fc47 AMS |
773 | else |
774 | PerlIO_close(fp); | |
6e21c824 LW |
775 | } |
776 | fp = saveifp; | |
760ac839 | 777 | PerlIO_clearerr(fp); |
e99cca91 | 778 | fd = PerlIO_fileno(fp); |
6e21c824 | 779 | } |
194e5090 | 780 | #if defined(HAS_FCNTL) && defined(F_SETFD) && defined(FD_CLOEXEC) |
f6ec3cd3 | 781 | if (fd >= 0 && fd > PL_maxsysfd && fcntl(fd, F_SETFD, FD_CLOEXEC) < 0) { |
194e5090 JH |
782 | PerlLIO_close(fd); |
783 | goto say_false; | |
a8710ca1 | 784 | } |
1462b684 | 785 | #endif |
8990e307 | 786 | IoIFP(io) = fp; |
b931b1d9 | 787 | |
684bef36 | 788 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a | 789 | if (writing) { |
50952442 | 790 | if (IoTYPE(io) == IoTYPE_SOCKET |
7e30e49f | 791 | || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(statbuf.st_mode)) ) { |
a33cf58c | 792 | char *s = mode; |
3b6c1aba JH |
793 | if (*s == IoTYPE_IMPLICIT || *s == IoTYPE_NUMERIC) |
794 | s++; | |
a33cf58c | 795 | *s = 'w'; |
7c491510 | 796 | if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,NULL))) { |
760ac839 | 797 | PerlIO_close(fp); |
6e21c824 | 798 | goto say_false; |
fe14fcc3 | 799 | } |
1462b684 LW |
800 | } |
801 | else | |
8990e307 | 802 | IoOFP(io) = fp; |
bf38876a | 803 | } |
7e30e49f DIM |
804 | if (statbufp) |
805 | *statbufp = statbuf; | |
806 | ||
a687059c | 807 | return TRUE; |
6e21c824 | 808 | |
7b52d656 | 809 | say_false: |
8990e307 LW |
810 | IoIFP(io) = saveifp; |
811 | IoOFP(io) = saveofp; | |
812 | IoTYPE(io) = savetype; | |
6e21c824 | 813 | return FALSE; |
a687059c LW |
814 | } |
815 | ||
760ac839 | 816 | PerlIO * |
157fb5a1 | 817 | Perl_nextargv(pTHX_ GV *gv, bool nomagicopen) |
a687059c | 818 | { |
2d03de9c | 819 | IO * const io = GvIOp(gv); |
502aca56 | 820 | SV *const old_out_name = PL_inplace ? newSVsv(GvSV(gv)) : NULL; |
fe14fcc3 | 821 | |
7918f24d NC |
822 | PERL_ARGS_ASSERT_NEXTARGV; |
823 | ||
502aca56 TC |
824 | if (old_out_name) |
825 | SAVEFREESV(old_out_name); | |
826 | ||
3280af22 | 827 | if (!PL_argvoutgv) |
fafc274c | 828 | PL_argvoutgv = gv_fetchpvs("ARGVOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
5513c2cf | 829 | if (io && (IoFLAGS(io) & (IOf_ARGV|IOf_START)) == (IOf_ARGV|IOf_START)) { |
18708f5a | 830 | IoFLAGS(io) &= ~IOf_START; |
7a1c5554 | 831 | if (PL_inplace) { |
294b3b39 | 832 | assert(PL_defoutgv); |
29a861e7 NC |
833 | Perl_av_create_and_push(aTHX_ &PL_argvout_stack, |
834 | SvREFCNT_inc_simple_NN(PL_defoutgv)); | |
7a1c5554 | 835 | } |
18708f5a | 836 | } |
3280af22 NIS |
837 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
838 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ | |
fe14fcc3 | 839 | #ifdef HAS_FCHMOD |
c797f2d8 DM |
840 | if (PL_lastfd != -1) |
841 | (void)fchmod(PL_lastfd,PL_filemode); | |
fe14fcc3 | 842 | #else |
b28d0864 | 843 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 LW |
844 | #endif |
845 | } | |
c797f2d8 | 846 | PL_lastfd = -1; |
3280af22 | 847 | PL_filemode = 0; |
5c501b37 | 848 | if (!GvAV(gv)) |
4608196e | 849 | return NULL; |
b9f2b683 | 850 | while (av_tindex(GvAV(gv)) >= 0) { |
85aff577 | 851 | STRLEN oldlen; |
1fa0529f | 852 | SV *const sv = av_shift(GvAV(gv)); |
8990e307 | 853 | SAVEFREESV(sv); |
4bac9ae4 | 854 | SvTAINTED_off(GvSVn(gv)); /* previous tainting irrelevant */ |
e203899d | 855 | sv_setsv(GvSVn(gv),sv); |
79072805 | 856 | SvSETMAGIC(GvSV(gv)); |
3280af22 | 857 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
d8015975 | 858 | if (LIKELY(!PL_inplace)) { |
157fb5a1 RGS |
859 | if (nomagicopen |
860 | ? do_open6(gv, "<", 1, NULL, &GvSV(gv), 1) | |
861 | : do_open6(gv, PL_oldname, oldlen, NULL, NULL, 0) | |
862 | ) { | |
d8015975 NC |
863 | return IoIFP(GvIOp(gv)); |
864 | } | |
865 | } | |
866 | else { | |
7e30e49f | 867 | Stat_t statbuf; |
502aca56 TC |
868 | { |
869 | IO * const io = GvIOp(PL_argvoutgv); | |
870 | if (io && IoIFP(io) && old_out_name && !io_close(io, PL_argvoutgv, FALSE, FALSE)) { | |
147e3846 KW |
871 | Perl_croak(aTHX_ "Failed to close in-place edit file %" |
872 | SVf ": %s\n", old_out_name, Strerror(errno)); | |
502aca56 TC |
873 | } |
874 | } | |
d8015975 NC |
875 | /* This very long block ends with return IoIFP(GvIOp(gv)); |
876 | Both this block and the block above fall through on open | |
877 | failure to the warning code, and then the while loop above tries | |
878 | the next entry. */ | |
7e30e49f | 879 | if (do_open_raw(gv, PL_oldname, oldlen, O_RDONLY, 0, &statbuf)) { |
1fa0529f NC |
880 | #ifndef FLEXFILENAMES |
881 | int filedev; | |
882 | int fileino; | |
883 | #endif | |
884 | Uid_t fileuid; | |
885 | Gid_t filegid; | |
886 | ||
79072805 | 887 | TAINT_PROPER("inplace open"); |
3280af22 | 888 | if (oldlen == 1 && *PL_oldname == '-') { |
fafc274c NC |
889 | setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, |
890 | SVt_PVIO)); | |
a0d0e21e | 891 | return IoIFP(GvIOp(gv)); |
c623bd54 | 892 | } |
99b89507 | 893 | #ifndef FLEXFILENAMES |
7e30e49f DIM |
894 | filedev = statbuf.st_dev; |
895 | fileino = statbuf.st_ino; | |
99b89507 | 896 | #endif |
7e30e49f DIM |
897 | PL_filemode = statbuf.st_mode; |
898 | fileuid = statbuf.st_uid; | |
899 | filegid = statbuf.st_gid; | |
3280af22 | 900 | if (!S_ISREG(PL_filemode)) { |
9b387841 NC |
901 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
902 | "Can't do inplace edit: %s is not a regular file", | |
903 | PL_oldname ); | |
79072805 | 904 | do_close(gv,FALSE); |
c623bd54 LW |
905 | continue; |
906 | } | |
c9930541 | 907 | if (*PL_inplace && strNE(PL_inplace, "*")) { |
2d03de9c | 908 | const char *star = strchr(PL_inplace, '*'); |
2d259d92 | 909 | if (star) { |
2d03de9c | 910 | const char *begin = PL_inplace; |
8062ff11 | 911 | SvPVCLEAR(sv); |
2d259d92 CK |
912 | do { |
913 | sv_catpvn(sv, begin, star - begin); | |
3280af22 | 914 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 CK |
915 | begin = ++star; |
916 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
917 | if (*begin) |
918 | sv_catpv(sv,begin); | |
2d259d92 CK |
919 | } |
920 | else { | |
3280af22 | 921 | sv_catpv(sv,PL_inplace); |
2d259d92 | 922 | } |
c623bd54 | 923 | #ifndef FLEXFILENAMES |
7e30e49f DIM |
924 | if ((PerlLIO_stat(SvPVX_const(sv),&statbuf) >= 0 |
925 | && statbuf.st_dev == filedev | |
926 | && statbuf.st_ino == fileino) | |
39e571d4 | 927 | #ifdef DJGPP |
5f74f29c | 928 | || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0) |
39e571d4 | 929 | #endif |
f248d071 GS |
930 | ) |
931 | { | |
9b387841 | 932 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
147e3846 KW |
933 | "Can't do inplace edit: %" |
934 | SVf " would not be unique", | |
9b387841 | 935 | SVfARG(sv)); |
79072805 | 936 | do_close(gv,FALSE); |
c623bd54 LW |
937 | continue; |
938 | } | |
939 | #endif | |
fe14fcc3 | 940 | #ifdef HAS_RENAME |
739a0b84 | 941 | #if !defined(DOSISH) && !defined(__CYGWIN__) |
95a20fc0 | 942 | if (PerlLIO_rename(PL_oldname,SvPVX_const(sv)) < 0) { |
9b387841 | 943 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
147e3846 KW |
944 | "Can't rename %s to %" SVf |
945 | ": %s, skipping file", | |
946 | PL_oldname, SVfARG(sv), | |
947 | Strerror(errno)); | |
79072805 | 948 | do_close(gv,FALSE); |
c623bd54 LW |
949 | continue; |
950 | } | |
a687059c | 951 | #else |
79072805 | 952 | do_close(gv,FALSE); |
95a20fc0 SP |
953 | (void)PerlLIO_unlink(SvPVX_const(sv)); |
954 | (void)PerlLIO_rename(PL_oldname,SvPVX_const(sv)); | |
7e30e49f | 955 | do_open_raw(gv, SvPVX_const(sv), SvCUR(sv), O_RDONLY, 0, NULL); |
55497cff | 956 | #endif /* DOSISH */ |
ff8e2863 | 957 | #else |
95a20fc0 SP |
958 | (void)UNLINK(SvPVX_const(sv)); |
959 | if (link(PL_oldname,SvPVX_const(sv)) < 0) { | |
9b387841 | 960 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
147e3846 | 961 | "Can't rename %s to %" SVf ": %s, skipping file", |
9b387841 | 962 | PL_oldname, SVfARG(sv), Strerror(errno) ); |
79072805 | 963 | do_close(gv,FALSE); |
c623bd54 LW |
964 | continue; |
965 | } | |
b28d0864 | 966 | (void)UNLINK(PL_oldname); |
a687059c LW |
967 | #endif |
968 | } | |
969 | else { | |
91e4b3b3 | 970 | #if !defined(DOSISH) && !defined(__amigaos4__) |
edc7bc49 | 971 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 | 972 | if (UNLINK(PL_oldname) < 0) { |
9b387841 NC |
973 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
974 | "Can't remove %s: %s, skipping file", | |
975 | PL_oldname, Strerror(errno) ); | |
79072805 | 976 | do_close(gv,FALSE); |
fe14fcc3 LW |
977 | continue; |
978 | } | |
edc7bc49 | 979 | # endif |
ff8e2863 | 980 | #else |
cea2e8a9 | 981 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 | 982 | #endif |
a687059c LW |
983 | } |
984 | ||
30fc4309 | 985 | sv_setpvn(sv,PL_oldname,oldlen); |
748a9306 | 986 | SETERRNO(0,0); /* in case sprintf set errno */ |
d5eb9a46 NC |
987 | if (!Perl_do_open_raw(aTHX_ PL_argvoutgv, SvPVX_const(sv), |
988 | SvCUR(sv), | |
4119ab01 | 989 | #ifdef VMS |
7e30e49f | 990 | O_WRONLY|O_CREAT|O_TRUNC, 0, |
4119ab01 | 991 | #else |
7e30e49f | 992 | O_WRONLY|O_CREAT|OPEN_EXCL, 0600, |
4119ab01 | 993 | #endif |
7e30e49f | 994 | NULL)) { |
9b387841 NC |
995 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s", |
996 | PL_oldname, Strerror(errno) ); | |
79072805 | 997 | do_close(gv,FALSE); |
fe14fcc3 LW |
998 | continue; |
999 | } | |
3280af22 NIS |
1000 | setdefout(PL_argvoutgv); |
1001 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); | |
375ed12a | 1002 | if (PL_lastfd >= 0) { |
45a23732 | 1003 | (void)PerlLIO_fstat(PL_lastfd,&statbuf); |
fe14fcc3 | 1004 | #ifdef HAS_FCHMOD |
375ed12a | 1005 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c | 1006 | #else |
375ed12a | 1007 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
a687059c | 1008 | #endif |
45a23732 | 1009 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
b469f1e0 | 1010 | /* XXX silently ignore failures */ |
fe14fcc3 | 1011 | #ifdef HAS_FCHOWN |
b469f1e0 | 1012 | PERL_UNUSED_RESULT(fchown(PL_lastfd,fileuid,filegid)); |
a687059c | 1013 | #else |
fe14fcc3 | 1014 | #ifdef HAS_CHOWN |
b469f1e0 | 1015 | PERL_UNUSED_RESULT(PerlLIO_chown(PL_oldname,fileuid,filegid)); |
a687059c | 1016 | #endif |
b1248f16 | 1017 | #endif |
375ed12a | 1018 | } |
fe14fcc3 | 1019 | } |
d8015975 | 1020 | return IoIFP(GvIOp(gv)); |
a687059c | 1021 | } |
d8015975 NC |
1022 | } /* successful do_open_raw(), PL_inplace non-NULL */ |
1023 | ||
1024 | if (ckWARN_d(WARN_INPLACE)) { | |
1025 | const int eno = errno; | |
7e30e49f | 1026 | Stat_t statbuf; |
45a23732 DD |
1027 | if (PerlLIO_stat(PL_oldname, &statbuf) >= 0 |
1028 | && !S_ISREG(statbuf.st_mode)) { | |
d8015975 NC |
1029 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), |
1030 | "Can't do inplace edit: %s is not a regular file", | |
1031 | PL_oldname); | |
1032 | } | |
1033 | else { | |
1034 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s", | |
1035 | PL_oldname, Strerror(eno)); | |
1036 | } | |
4d61ec05 | 1037 | } |
a687059c | 1038 | } |
18708f5a GS |
1039 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
1040 | IoFLAGS(io) |= IOf_START; | |
3280af22 | 1041 | if (PL_inplace) { |
502aca56 TC |
1042 | if (old_out_name) { |
1043 | IO * const io = GvIOp(PL_argvoutgv); | |
1044 | if (io && IoIFP(io) && !io_close(io, PL_argvoutgv, FALSE, FALSE)) { | |
147e3846 | 1045 | Perl_croak(aTHX_ "Failed to close in-place edit file %" SVf ": %s\n", |
502aca56 TC |
1046 | old_out_name, Strerror(errno)); |
1047 | } | |
1048 | } | |
1049 | else { | |
1050 | /* maybe this is no longer wanted */ | |
1051 | (void)do_close(PL_argvoutgv,FALSE); | |
1052 | } | |
7a1c5554 GS |
1053 | if (io && (IoFLAGS(io) & IOf_ARGV) |
1054 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) | |
1055 | { | |
159b6efe | 1056 | GV * const oldout = MUTABLE_GV(av_pop(PL_argvout_stack)); |
18708f5a | 1057 | setdefout(oldout); |
8e217d4a | 1058 | SvREFCNT_dec_NN(oldout); |
4608196e | 1059 | return NULL; |
18708f5a | 1060 | } |
fafc274c | 1061 | setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO)); |
a687059c | 1062 | } |
4608196e | 1063 | return NULL; |
a687059c LW |
1064 | } |
1065 | ||
517844ec | 1066 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 1067 | bool |
864dbfa3 | 1068 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c | 1069 | { |
1193dd27 IZ |
1070 | bool retval; |
1071 | IO *io; | |
a687059c | 1072 | |
79072805 | 1073 | if (!gv) |
3280af22 | 1074 | gv = PL_argvgv; |
6e592b3a | 1075 | if (!gv || !isGV_with_GP(gv)) { |
1d2dff63 | 1076 | if (not_implicit) |
93189314 | 1077 | SETERRNO(EBADF,SS_IVCHAN); |
c2ab57d4 | 1078 | return FALSE; |
99b89507 | 1079 | } |
79072805 LW |
1080 | io = GvIO(gv); |
1081 | if (!io) { /* never opened */ | |
1d2dff63 | 1082 | if (not_implicit) { |
51087808 | 1083 | report_evil_fh(gv); |
93189314 | 1084 | SETERRNO(EBADF,SS_IVCHAN); |
1d2dff63 | 1085 | } |
a687059c LW |
1086 | return FALSE; |
1087 | } | |
96d7c888 | 1088 | retval = io_close(io, NULL, not_implicit, FALSE); |
517844ec | 1089 | if (not_implicit) { |
1193dd27 IZ |
1090 | IoLINES(io) = 0; |
1091 | IoPAGE(io) = 0; | |
1092 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
1093 | } | |
50952442 | 1094 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 IZ |
1095 | return retval; |
1096 | } | |
1097 | ||
1098 | bool | |
96d7c888 | 1099 | Perl_io_close(pTHX_ IO *io, GV *gv, bool not_implicit, bool warn_on_fail) |
1193dd27 IZ |
1100 | { |
1101 | bool retval = FALSE; | |
1193dd27 | 1102 | |
7918f24d NC |
1103 | PERL_ARGS_ASSERT_IO_CLOSE; |
1104 | ||
8990e307 | 1105 | if (IoIFP(io)) { |
50952442 | 1106 | if (IoTYPE(io) == IoTYPE_PIPE) { |
4373e329 | 1107 | const int status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 | 1108 | if (not_implicit) { |
37038d91 | 1109 | STATUS_NATIVE_CHILD_SET(status); |
e5218da5 | 1110 | retval = (STATUS_UNIX == 0); |
f2b5be74 GS |
1111 | } |
1112 | else { | |
1113 | retval = (status != -1); | |
1114 | } | |
a687059c | 1115 | } |
50952442 | 1116 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c LW |
1117 | retval = TRUE; |
1118 | else { | |
8990e307 | 1119 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
0bcc34c2 | 1120 | const bool prev_err = PerlIO_error(IoOFP(io)); |
f4725fad FC |
1121 | #ifdef USE_PERLIO |
1122 | if (prev_err) | |
1123 | PerlIO_restore_errno(IoOFP(io)); | |
1124 | #endif | |
e199e3be | 1125 | retval = (PerlIO_close(IoOFP(io)) != EOF && !prev_err); |
760ac839 | 1126 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 | 1127 | } |
e199e3be | 1128 | else { |
0bcc34c2 | 1129 | const bool prev_err = PerlIO_error(IoIFP(io)); |
f4725fad FC |
1130 | #ifdef USE_PERLIO |
1131 | if (prev_err) | |
1132 | PerlIO_restore_errno(IoIFP(io)); | |
1133 | #endif | |
e199e3be RGS |
1134 | retval = (PerlIO_close(IoIFP(io)) != EOF && !prev_err); |
1135 | } | |
a687059c | 1136 | } |
4608196e | 1137 | IoOFP(io) = IoIFP(io) = NULL; |
96d7c888 FC |
1138 | |
1139 | if (warn_on_fail && !retval) { | |
1140 | if (gv) | |
1141 | Perl_ck_warner_d(aTHX_ packWARN(WARN_IO), | |
1142 | "Warning: unable to close filehandle %" | |
147e3846 | 1143 | HEKf " properly: %" SVf, |
ac892e4a DM |
1144 | HEKfARG(GvNAME_HEK(gv)), |
1145 | SVfARG(get_sv("!",GV_ADD))); | |
96d7c888 FC |
1146 | else |
1147 | Perl_ck_warner_d(aTHX_ packWARN(WARN_IO), | |
1148 | "Warning: unable to close filehandle " | |
147e3846 | 1149 | "properly: %" SVf, |
ac892e4a | 1150 | SVfARG(get_sv("!",GV_ADD))); |
96d7c888 | 1151 | } |
79072805 | 1152 | } |
f2b5be74 | 1153 | else if (not_implicit) { |
93189314 | 1154 | SETERRNO(EBADF,SS_IVCHAN); |
20408e3c | 1155 | } |
1193dd27 | 1156 | |
a687059c LW |
1157 | return retval; |
1158 | } | |
1159 | ||
1160 | bool | |
864dbfa3 | 1161 | Perl_do_eof(pTHX_ GV *gv) |
a687059c | 1162 | { |
eb578fdb | 1163 | IO * const io = GvIO(gv); |
a687059c | 1164 | |
7918f24d NC |
1165 | PERL_ARGS_ASSERT_DO_EOF; |
1166 | ||
79072805 | 1167 | if (!io) |
a687059c | 1168 | return TRUE; |
7716c5c5 | 1169 | else if (IoTYPE(io) == IoTYPE_WRONLY) |
a5390457 | 1170 | report_wrongway_fh(gv, '>'); |
a687059c | 1171 | |
8990e307 | 1172 | while (IoIFP(io)) { |
760ac839 | 1173 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 | 1174 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 LW |
1175 | return FALSE; /* this is the most usual case */ |
1176 | } | |
a687059c | 1177 | |
79852593 NC |
1178 | { |
1179 | /* getc and ungetc can stomp on errno */ | |
4ee39169 | 1180 | dSAVE_ERRNO; |
79852593 NC |
1181 | const int ch = PerlIO_getc(IoIFP(io)); |
1182 | if (ch != EOF) { | |
1183 | (void)PerlIO_ungetc(IoIFP(io),ch); | |
4ee39169 | 1184 | RESTORE_ERRNO; |
79852593 NC |
1185 | return FALSE; |
1186 | } | |
4ee39169 | 1187 | RESTORE_ERRNO; |
a687059c | 1188 | } |
fab3f3a7 | 1189 | |
760ac839 | 1190 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 JH |
1191 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
1192 | PerlIO_set_cnt(IoIFP(io),-1); | |
760ac839 | 1193 | } |
533c011a | 1194 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
157fb5a1 | 1195 | if (gv != PL_argvgv || !nextargv(gv, FALSE)) /* get another fp handy */ |
a687059c LW |
1196 | return TRUE; |
1197 | } | |
1198 | else | |
1199 | return TRUE; /* normal fp, definitely end of file */ | |
1200 | } | |
1201 | return TRUE; | |
1202 | } | |
1203 | ||
5ff3f7a4 | 1204 | Off_t |
864dbfa3 | 1205 | Perl_do_tell(pTHX_ GV *gv) |
a687059c | 1206 | { |
9c9f25b8 | 1207 | IO *const io = GvIO(gv); |
eb578fdb | 1208 | PerlIO *fp; |
a687059c | 1209 | |
7918f24d NC |
1210 | PERL_ARGS_ASSERT_DO_TELL; |
1211 | ||
9c9f25b8 | 1212 | if (io && (fp = IoIFP(io))) { |
8903cb82 | 1213 | return PerlIO_tell(fp); |
96e4d5b1 | 1214 | } |
51087808 | 1215 | report_evil_fh(gv); |
93189314 | 1216 | SETERRNO(EBADF,RMS_IFI); |
5ff3f7a4 | 1217 | return (Off_t)-1; |
a687059c LW |
1218 | } |
1219 | ||
1220 | bool | |
864dbfa3 | 1221 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c | 1222 | { |
9c9f25b8 | 1223 | IO *const io = GvIO(gv); |
eb578fdb | 1224 | PerlIO *fp; |
a687059c | 1225 | |
9c9f25b8 | 1226 | if (io && (fp = IoIFP(io))) { |
8903cb82 | 1227 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 1228 | } |
51087808 | 1229 | report_evil_fh(gv); |
93189314 | 1230 | SETERRNO(EBADF,RMS_IFI); |
a687059c LW |
1231 | return FALSE; |
1232 | } | |
1233 | ||
97cc44eb | 1234 | Off_t |
864dbfa3 | 1235 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 | 1236 | { |
9c9f25b8 | 1237 | IO *const io = GvIO(gv); |
eb578fdb | 1238 | PerlIO *fp; |
8903cb82 | 1239 | |
7918f24d NC |
1240 | PERL_ARGS_ASSERT_DO_SYSSEEK; |
1241 | ||
375ed12a JH |
1242 | if (io && (fp = IoIFP(io))) { |
1243 | int fd = PerlIO_fileno(fp); | |
07bd88da JH |
1244 | if (fd < 0 || (whence == SEEK_SET && pos < 0)) { |
1245 | SETERRNO(EINVAL,LIB_INVARG); | |
1246 | return -1; | |
1247 | } else { | |
375ed12a JH |
1248 | return PerlLIO_lseek(fd, pos, whence); |
1249 | } | |
1250 | } | |
51087808 | 1251 | report_evil_fh(gv); |
93189314 | 1252 | SETERRNO(EBADF,RMS_IFI); |
d9b3e12d | 1253 | return (Off_t)-1; |
8903cb82 | 1254 | } |
1255 | ||
6ff81951 | 1256 | int |
a79b25b7 | 1257 | Perl_mode_from_discipline(pTHX_ const char *s, STRLEN len) |
16fe6d59 GS |
1258 | { |
1259 | int mode = O_BINARY; | |
81611534 | 1260 | PERL_UNUSED_CONTEXT; |
a79b25b7 | 1261 | if (s) { |
16fe6d59 GS |
1262 | while (*s) { |
1263 | if (*s == ':') { | |
1264 | switch (s[1]) { | |
1265 | case 'r': | |
e963d6d2 | 1266 | if (s[2] == 'a' && s[3] == 'w' |
16fe6d59 GS |
1267 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) |
1268 | { | |
1269 | mode = O_BINARY; | |
1270 | s += 4; | |
1271 | len -= 4; | |
1272 | break; | |
1273 | } | |
924ba076 | 1274 | /* FALLTHROUGH */ |
16fe6d59 | 1275 | case 'c': |
e963d6d2 | 1276 | if (s[2] == 'r' && s[3] == 'l' && s[4] == 'f' |
16fe6d59 GS |
1277 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) |
1278 | { | |
1279 | mode = O_TEXT; | |
1280 | s += 5; | |
1281 | len -= 5; | |
1282 | break; | |
1283 | } | |
924ba076 | 1284 | /* FALLTHROUGH */ |
16fe6d59 GS |
1285 | default: |
1286 | goto fail_discipline; | |
1287 | } | |
1288 | } | |
1289 | else if (isSPACE(*s)) { | |
1290 | ++s; | |
1291 | --len; | |
1292 | } | |
1293 | else { | |
4373e329 | 1294 | const char *end; |
7b52d656 | 1295 | fail_discipline: |
16fe6d59 GS |
1296 | end = strchr(s+1, ':'); |
1297 | if (!end) | |
1298 | end = s+len; | |
60382766 | 1299 | #ifndef PERLIO_LAYERS |
363c40c4 | 1300 | Perl_croak(aTHX_ "IO layers (like '%.*s') unavailable", end-s, s); |
60382766 | 1301 | #else |
18a33fb5 | 1302 | len -= end-s; |
60382766 NIS |
1303 | s = end; |
1304 | #endif | |
16fe6d59 GS |
1305 | } |
1306 | } | |
1307 | } | |
1308 | return mode; | |
1309 | } | |
1310 | ||
58e24eff | 1311 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) |
27da23d5 JH |
1312 | I32 |
1313 | my_chsize(int fd, Off_t length) | |
6eb13c3b | 1314 | { |
58e24eff SH |
1315 | #ifdef F_FREESP |
1316 | /* code courtesy of William Kucharski */ | |
1317 | #define HAS_CHSIZE | |
1318 | ||
c623ac67 | 1319 | Stat_t filebuf; |
6eb13c3b | 1320 | |
3028581b | 1321 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
1322 | return -1; |
1323 | ||
1324 | if (filebuf.st_size < length) { | |
1325 | ||
1326 | /* extend file length */ | |
1327 | ||
3028581b | 1328 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
1329 | return -1; |
1330 | ||
1331 | /* write a "0" byte */ | |
1332 | ||
3028581b | 1333 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
1334 | return -1; |
1335 | } | |
1336 | else { | |
1337 | /* truncate length */ | |
35da51f7 | 1338 | struct flock fl; |
6eb13c3b LW |
1339 | fl.l_whence = 0; |
1340 | fl.l_len = 0; | |
1341 | fl.l_start = length; | |
a0d0e21e | 1342 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
1343 | |
1344 | /* | |
a0d0e21e | 1345 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
1346 | * fcntl(2), which truncates the file so that it ends at the |
1347 | * position indicated by fl.l_start. | |
1348 | * | |
1349 | * Will minor miracles never cease? | |
1350 | */ | |
1351 | ||
a0d0e21e | 1352 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
1353 | return -1; |
1354 | ||
1355 | } | |
6eb13c3b | 1356 | return 0; |
58e24eff | 1357 | #else |
27da23d5 | 1358 | Perl_croak_nocontext("truncate not implemented"); |
a0d0e21e | 1359 | #endif /* F_FREESP */ |
27da23d5 | 1360 | return -1; |
58e24eff SH |
1361 | } |
1362 | #endif /* !HAS_TRUNCATE && !HAS_CHSIZE */ | |
ff8e2863 | 1363 | |
a687059c | 1364 | bool |
5aaab254 | 1365 | Perl_do_print(pTHX_ SV *sv, PerlIO *fp) |
a687059c | 1366 | { |
7918f24d NC |
1367 | PERL_ARGS_ASSERT_DO_PRINT; |
1368 | ||
79072805 LW |
1369 | /* assuming fp is checked earlier */ |
1370 | if (!sv) | |
1371 | return TRUE; | |
e9950d3b NC |
1372 | if (SvTYPE(sv) == SVt_IV && SvIOK(sv)) { |
1373 | assert(!SvGMAGICAL(sv)); | |
1374 | if (SvIsUV(sv)) | |
147e3846 | 1375 | PerlIO_printf(fp, "%" UVuf, (UV)SvUVX(sv)); |
e9950d3b | 1376 | else |
147e3846 | 1377 | PerlIO_printf(fp, "%" IVdf, (IV)SvIVX(sv)); |
e9950d3b NC |
1378 | return !PerlIO_error(fp); |
1379 | } | |
1380 | else { | |
1381 | STRLEN len; | |
676f44e7 | 1382 | /* Do this first to trigger any overloading. */ |
e9950d3b NC |
1383 | const char *tmps = SvPV_const(sv, len); |
1384 | U8 *tmpbuf = NULL; | |
1385 | bool happy = TRUE; | |
1386 | ||
d791f93f KW |
1387 | if (PerlIO_isutf8(fp)) { /* If the stream is utf8 ... */ |
1388 | if (!SvUTF8(sv)) { /* Convert to utf8 if necessary */ | |
676f44e7 NC |
1389 | /* We don't modify the original scalar. */ |
1390 | tmpbuf = bytes_to_utf8((const U8*) tmps, &len); | |
1391 | tmps = (char *) tmpbuf; | |
1392 | } | |
a099aed4 | 1393 | else if (ckWARN4_d(WARN_UTF8, WARN_SURROGATE, WARN_NON_UNICODE, WARN_NONCHAR)) { |
0876b9a0 KW |
1394 | (void) check_utf8_print((const U8*) tmps, len); |
1395 | } | |
d791f93f KW |
1396 | } /* else stream isn't utf8 */ |
1397 | else if (DO_UTF8(sv)) { /* But if is utf8 internally, attempt to | |
1398 | convert to bytes */ | |
676f44e7 NC |
1399 | STRLEN tmplen = len; |
1400 | bool utf8 = TRUE; | |
35da51f7 | 1401 | U8 * const result = bytes_from_utf8((const U8*) tmps, &tmplen, &utf8); |
676f44e7 | 1402 | if (!utf8) { |
d791f93f KW |
1403 | |
1404 | /* Here, succeeded in downgrading from utf8. Set up to below | |
1405 | * output the converted value */ | |
676f44e7 NC |
1406 | tmpbuf = result; |
1407 | tmps = (char *) tmpbuf; | |
1408 | len = tmplen; | |
1409 | } | |
d791f93f KW |
1410 | else { /* Non-utf8 output stream, but string only representable in |
1411 | utf8 */ | |
676f44e7 | 1412 | assert((char *)result == tmps); |
9b387841 | 1413 | Perl_ck_warner_d(aTHX_ packWARN(WARN_UTF8), |
21630838 FC |
1414 | "Wide character in %s", |
1415 | PL_op ? OP_DESC(PL_op) : "print" | |
1416 | ); | |
0876b9a0 KW |
1417 | /* Could also check that isn't one of the things to avoid |
1418 | * in utf8 by using check_utf8_print(), but not doing so, | |
1419 | * since the stream isn't a UTF8 stream */ | |
ae798467 NIS |
1420 | } |
1421 | } | |
e9950d3b NC |
1422 | /* To detect whether the process is about to overstep its |
1423 | * filesize limit we would need getrlimit(). We could then | |
1424 | * also transparently raise the limit with setrlimit() -- | |
1425 | * but only until the system hard limit/the filesystem limit, | |
1426 | * at which we would get EPERM. Note that when using buffered | |
1427 | * io the write failure can be delayed until the flush/close. --jhi */ | |
1428 | if (len && (PerlIO_write(fp,tmps,len) == 0)) | |
1429 | happy = FALSE; | |
1430 | Safefree(tmpbuf); | |
1431 | return happy ? !PerlIO_error(fp) : FALSE; | |
ff8e2863 | 1432 | } |
a687059c LW |
1433 | } |
1434 | ||
79072805 | 1435 | I32 |
0d7d409d | 1436 | Perl_my_stat_flags(pTHX_ const U32 flags) |
a687059c | 1437 | { |
39644a26 | 1438 | dSP; |
79072805 | 1439 | IO *io; |
2dd78f96 | 1440 | GV* gv; |
79072805 | 1441 | |
533c011a | 1442 | if (PL_op->op_flags & OPf_REF) { |
2dd78f96 | 1443 | gv = cGVOP_gv; |
748a9306 | 1444 | do_fstat: |
5228a96c SP |
1445 | if (gv == PL_defgv) |
1446 | return PL_laststatval; | |
2dd78f96 | 1447 | io = GvIO(gv); |
ad02613c | 1448 | do_fstat_have_io: |
5228a96c | 1449 | PL_laststype = OP_STAT; |
bd5f6c01 | 1450 | PL_statgv = gv ? gv : (GV *)io; |
8062ff11 | 1451 | SvPVCLEAR(PL_statname); |
77616968 | 1452 | if (io) { |
5228a96c | 1453 | if (IoIFP(io)) { |
375ed12a | 1454 | int fd = PerlIO_fileno(IoIFP(io)); |
77616968 JH |
1455 | if (fd < 0) { |
1456 | /* E.g. PerlIO::scalar has no real fd. */ | |
1457 | return (PL_laststatval = -1); | |
1458 | } else { | |
375ed12a JH |
1459 | return (PL_laststatval = PerlLIO_fstat(fd, &PL_statcache)); |
1460 | } | |
5228a96c | 1461 | } else if (IoDIRP(io)) { |
3497a01f | 1462 | return (PL_laststatval = PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache)); |
5228a96c | 1463 | } |
5228a96c | 1464 | } |
3888144c FC |
1465 | PL_laststatval = -1; |
1466 | report_evil_fh(gv); | |
1467 | return -1; | |
a687059c | 1468 | } |
d2c4d2d1 | 1469 | else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) |
8db8f6b6 FC |
1470 | == OPpFT_STACKED) |
1471 | return PL_laststatval; | |
d2c4d2d1 FC |
1472 | else { |
1473 | SV* const sv = TOPs; | |
4373e329 | 1474 | const char *s; |
4ecd490c | 1475 | STRLEN len; |
094a3eec | 1476 | if ((gv = MAYBE_DEREF_GV_flags(sv,flags))) { |
748a9306 LW |
1477 | goto do_fstat; |
1478 | } | |
ad02613c | 1479 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) { |
a45c7426 | 1480 | io = MUTABLE_IO(SvRV(sv)); |
7f39519f | 1481 | gv = NULL; |
ad02613c SP |
1482 | goto do_fstat_have_io; |
1483 | } | |
748a9306 | 1484 | |
0d7d409d | 1485 | s = SvPV_flags_const(sv, len, flags); |
a0714e2c | 1486 | PL_statgv = NULL; |
4ecd490c | 1487 | sv_setpvn(PL_statname, s, len); |
95a20fc0 | 1488 | s = SvPVX_const(PL_statname); /* s now NUL-terminated */ |
3280af22 NIS |
1489 | PL_laststype = OP_STAT; |
1490 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); | |
7cb3f959 | 1491 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && should_warn_nl(s)) { |
5d37acd6 | 1492 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ |
9014280d | 1493 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); |
5d37acd6 DM |
1494 | GCC_DIAG_RESTORE; |
1495 | } | |
3280af22 | 1496 | return PL_laststatval; |
a687059c LW |
1497 | } |
1498 | } | |
1499 | ||
fbb0b3b3 | 1500 | |
79072805 | 1501 | I32 |
0d7d409d | 1502 | Perl_my_lstat_flags(pTHX_ const U32 flags) |
c623bd54 | 1503 | { |
a1894d81 | 1504 | static const char* const no_prev_lstat = "The stat preceding -l _ wasn't an lstat"; |
39644a26 | 1505 | dSP; |
b16276bb | 1506 | const char *file; |
cd22fad3 | 1507 | SV* const sv = TOPs; |
5840701a | 1508 | bool isio = FALSE; |
533c011a | 1509 | if (PL_op->op_flags & OPf_REF) { |
638eceb6 | 1510 | if (cGVOP_gv == PL_defgv) { |
3280af22 | 1511 | if (PL_laststype != OP_LSTAT) |
0157ef98 | 1512 | Perl_croak(aTHX_ "%s", no_prev_lstat); |
3280af22 | 1513 | return PL_laststatval; |
fe14fcc3 | 1514 | } |
31b139ba | 1515 | PL_laststatval = -1; |
5d3e98de | 1516 | if (ckWARN(WARN_IO)) { |
5840701a | 1517 | /* diag_listed_as: Use of -l on filehandle%s */ |
d0c0e7dd | 1518 | Perl_warner(aTHX_ packWARN(WARN_IO), |
147e3846 | 1519 | "Use of -l on filehandle %" HEKf, |
d0c0e7dd | 1520 | HEKfARG(GvENAME_HEK(cGVOP_gv))); |
5d3e98de | 1521 | } |
31b139ba | 1522 | return -1; |
fe14fcc3 | 1523 | } |
8db8f6b6 FC |
1524 | if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) |
1525 | == OPpFT_STACKED) { | |
1f26655e | 1526 | if (PL_laststype != OP_LSTAT) |
0157ef98 | 1527 | Perl_croak(aTHX_ "%s", no_prev_lstat); |
1f26655e | 1528 | return PL_laststatval; |
cd22fad3 | 1529 | } |
c623bd54 | 1530 | |
3280af22 | 1531 | PL_laststype = OP_LSTAT; |
a0714e2c | 1532 | PL_statgv = NULL; |
5840701a FC |
1533 | if ( ( (SvROK(sv) && ( isGV_with_GP(SvRV(sv)) |
1534 | || (isio = SvTYPE(SvRV(sv)) == SVt_PVIO) ) | |
1535 | ) | |
1536 | || isGV_with_GP(sv) | |
1537 | ) | |
1538 | && ckWARN(WARN_IO)) { | |
1539 | if (isio) | |
1540 | /* diag_listed_as: Use of -l on filehandle%s */ | |
1541 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
1542 | "Use of -l on filehandle"); | |
1543 | else | |
1544 | /* diag_listed_as: Use of -l on filehandle%s */ | |
1545 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
147e3846 | 1546 | "Use of -l on filehandle %" HEKf, |
10bafe90 BF |
1547 | HEKfARG(GvENAME_HEK((const GV *) |
1548 | (SvROK(sv) ? SvRV(sv) : sv)))); | |
cd22fad3 RS |
1549 | } |
1550 | file = SvPV_flags_const_nolen(sv, flags); | |
b16276bb VP |
1551 | sv_setpv(PL_statname,file); |
1552 | PL_laststatval = PerlLIO_lstat(file,&PL_statcache); | |
7cb3f959 | 1553 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && should_warn_nl(file)) { |
5d37acd6 DM |
1554 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ |
1555 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat"); | |
1556 | GCC_DIAG_RESTORE; | |
1557 | } | |
3280af22 | 1558 | return PL_laststatval; |
c623bd54 LW |
1559 | } |
1560 | ||
a0f2c8ec JD |
1561 | static void |
1562 | S_exec_failed(pTHX_ const char *cmd, int fd, int do_report) | |
1563 | { | |
1564 | const int e = errno; | |
7918f24d | 1565 | PERL_ARGS_ASSERT_EXEC_FAILED; |
738ab09f AB |
1566 | |
1567 | if (ckWARN(WARN_EXEC)) | |
1568 | Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", | |
1569 | cmd, Strerror(e)); | |
a0f2c8ec | 1570 | if (do_report) { |
b469f1e0 JH |
1571 | /* XXX silently ignore failures */ |
1572 | PERL_UNUSED_RESULT(PerlLIO_write(fd, (void*)&e, sizeof(int))); | |
a0f2c8ec JD |
1573 | PerlLIO_close(fd); |
1574 | } | |
1575 | } | |
1576 | ||
738ab09f | 1577 | bool |
5aaab254 | 1578 | Perl_do_aexec5(pTHX_ SV *really, SV **mark, SV **sp, |
2aa1486d | 1579 | int fd, int do_report) |
d5a9bfb0 | 1580 | { |
27da23d5 | 1581 | dVAR; |
7918f24d | 1582 | PERL_ARGS_ASSERT_DO_AEXEC5; |
e37778c2 | 1583 | #if defined(__SYMBIAN32__) || defined(__LIBCATAMOUNT__) |
cd39f2b6 JH |
1584 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); |
1585 | #else | |
79072805 | 1586 | if (sp > mark) { |
360ea906 | 1587 | const char **a; |
6136c704 | 1588 | const char *tmps = NULL; |
360ea906 | 1589 | Newx(PL_Argv, sp - mark + 1, const char*); |
c3c5fad7 | 1590 | a = PL_Argv; |
890ce7af | 1591 | |
79072805 LW |
1592 | while (++mark <= sp) { |
1593 | if (*mark) | |
360ea906 | 1594 | *a++ = SvPV_nolen_const(*mark); |
a687059c LW |
1595 | else |
1596 | *a++ = ""; | |
1597 | } | |
6136c704 | 1598 | *a = NULL; |
91b2752f | 1599 | if (really) |
e62f0680 | 1600 | tmps = SvPV_nolen_const(really); |
91b2752f RG |
1601 | if ((!really && *PL_Argv[0] != '/') || |
1602 | (really && *tmps != '/')) /* will execvp use PATH? */ | |
79072805 | 1603 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
b35112e7 | 1604 | PERL_FPU_PRE_EXEC |
839a9f02 | 1605 | if (really && *tmps) { |
738ab09f | 1606 | PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); |
839a9f02 | 1607 | } else { |
738ab09f | 1608 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
839a9f02 | 1609 | } |
b35112e7 | 1610 | PERL_FPU_POST_EXEC |
a0f2c8ec | 1611 | S_exec_failed(aTHX_ (really ? tmps : PL_Argv[0]), fd, do_report); |
a687059c | 1612 | } |
bee1dbe2 | 1613 | do_execfree(); |
cd39f2b6 | 1614 | #endif |
738ab09f | 1615 | return FALSE; |
a687059c LW |
1616 | } |
1617 | ||
fe14fcc3 | 1618 | void |
864dbfa3 | 1619 | Perl_do_execfree(pTHX) |
ff8e2863 | 1620 | { |
43c5f42d | 1621 | Safefree(PL_Argv); |
4608196e | 1622 | PL_Argv = NULL; |
43c5f42d | 1623 | Safefree(PL_Cmd); |
bd61b366 | 1624 | PL_Cmd = NULL; |
ff8e2863 LW |
1625 | } |
1626 | ||
9555a685 | 1627 | #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION |
e446cec8 | 1628 | |
738ab09f | 1629 | bool |
2fbb330f | 1630 | Perl_do_exec3(pTHX_ const char *incmd, int fd, int do_report) |
e446cec8 | 1631 | { |
27da23d5 | 1632 | dVAR; |
eb578fdb KW |
1633 | const char **a; |
1634 | char *s; | |
15db3ae2 | 1635 | char *buf; |
2fbb330f | 1636 | char *cmd; |
2fbb330f | 1637 | /* Make a copy so we can change it */ |
6fca0082 | 1638 | const Size_t cmdlen = strlen(incmd) + 1; |
7918f24d NC |
1639 | |
1640 | PERL_ARGS_ASSERT_DO_EXEC3; | |
1641 | ||
15db3ae2 DM |
1642 | Newx(buf, cmdlen, char); |
1643 | cmd = buf; | |
cfff9797 | 1644 | memcpy(cmd, incmd, cmdlen); |
a687059c | 1645 | |
748a9306 LW |
1646 | while (*cmd && isSPACE(*cmd)) |
1647 | cmd++; | |
1648 | ||
a687059c LW |
1649 | /* save an extra exec if possible */ |
1650 | ||
bf38876a | 1651 | #ifdef CSH |
d05c1ba0 | 1652 | { |
0c19750d | 1653 | char flags[PERL_FLAGS_MAX]; |
d05c1ba0 | 1654 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && |
8062ff11 | 1655 | strEQs(cmd+PL_cshlen," -c")) { |
28f0d0ec | 1656 | my_strlcpy(flags, "-c", PERL_FLAGS_MAX); |
d05c1ba0 JH |
1657 | s = cmd+PL_cshlen+3; |
1658 | if (*s == 'f') { | |
1659 | s++; | |
28f0d0ec | 1660 | my_strlcat(flags, "f", PERL_FLAGS_MAX - 2); |
d05c1ba0 JH |
1661 | } |
1662 | if (*s == ' ') | |
1663 | s++; | |
1664 | if (*s++ == '\'') { | |
0bcc34c2 | 1665 | char * const ncmd = s; |
d05c1ba0 JH |
1666 | |
1667 | while (*s) | |
1668 | s++; | |
1669 | if (s[-1] == '\n') | |
1670 | *--s = '\0'; | |
1671 | if (s[-1] == '\'') { | |
1672 | *--s = '\0'; | |
b35112e7 | 1673 | PERL_FPU_PRE_EXEC |
738ab09f | 1674 | PerlProc_execl(PL_cshname, "csh", flags, ncmd, (char*)NULL); |
b35112e7 | 1675 | PERL_FPU_POST_EXEC |
d05c1ba0 | 1676 | *s = '\''; |
a0f2c8ec | 1677 | S_exec_failed(aTHX_ PL_cshname, fd, do_report); |
15db3ae2 | 1678 | Safefree(buf); |
738ab09f | 1679 | return FALSE; |
d05c1ba0 JH |
1680 | } |
1681 | } | |
a687059c LW |
1682 | } |
1683 | } | |
bf38876a | 1684 | #endif /* CSH */ |
a687059c LW |
1685 | |
1686 | /* see if there are shell metacharacters in it */ | |
1687 | ||
748a9306 LW |
1688 | if (*cmd == '.' && isSPACE(cmd[1])) |
1689 | goto doshell; | |
1690 | ||
8062ff11 | 1691 | if (strEQs(cmd,"exec") && isSPACE(cmd[4])) |
748a9306 LW |
1692 | goto doshell; |
1693 | ||
294b3b39 | 1694 | s = cmd; |
0eb30aeb | 1695 | while (isWORDCHAR(*s)) |
294b3b39 | 1696 | s++; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1697 | if (*s == '=') |
1698 | goto doshell; | |
748a9306 | 1699 | |
a687059c | 1700 | for (s = cmd; *s; s++) { |
d05c1ba0 JH |
1701 | if (*s != ' ' && !isALPHA(*s) && |
1702 | strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { | |
a687059c LW |
1703 | if (*s == '\n' && !s[1]) { |
1704 | *s = '\0'; | |
1705 | break; | |
1706 | } | |
603a98b0 IZ |
1707 | /* handle the 2>&1 construct at the end */ |
1708 | if (*s == '>' && s[1] == '&' && s[2] == '1' | |
1709 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) | |
1710 | && (!s[3] || isSPACE(s[3]))) | |
1711 | { | |
6867be6d | 1712 | const char *t = s + 3; |
603a98b0 IZ |
1713 | |
1714 | while (*t && isSPACE(*t)) | |
1715 | ++t; | |
943bbd07 | 1716 | if (!*t && (PerlLIO_dup2(1,2) != -1)) { |
603a98b0 IZ |
1717 | s[-2] = '\0'; |
1718 | break; | |
1719 | } | |
1720 | } | |
a687059c | 1721 | doshell: |
b35112e7 | 1722 | PERL_FPU_PRE_EXEC |
738ab09f | 1723 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char *)NULL); |
b35112e7 | 1724 | PERL_FPU_POST_EXEC |
a0f2c8ec | 1725 | S_exec_failed(aTHX_ PL_sh_path, fd, do_report); |
15db3ae2 | 1726 | Safefree(buf); |
738ab09f | 1727 | return FALSE; |
a687059c LW |
1728 | } |
1729 | } | |
748a9306 | 1730 | |
360ea906 | 1731 | Newx(PL_Argv, (s - cmd) / 2 + 2, const char*); |
3280af22 NIS |
1732 | PL_Cmd = savepvn(cmd, s-cmd); |
1733 | a = PL_Argv; | |
1734 | for (s = PL_Cmd; *s;) { | |
294b3b39 AL |
1735 | while (isSPACE(*s)) |
1736 | s++; | |
a687059c LW |
1737 | if (*s) |
1738 | *(a++) = s; | |
294b3b39 AL |
1739 | while (*s && !isSPACE(*s)) |
1740 | s++; | |
a687059c LW |
1741 | if (*s) |
1742 | *s++ = '\0'; | |
1743 | } | |
6136c704 | 1744 | *a = NULL; |
3280af22 | 1745 | if (PL_Argv[0]) { |
b35112e7 | 1746 | PERL_FPU_PRE_EXEC |
738ab09f | 1747 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
b35112e7 | 1748 | PERL_FPU_POST_EXEC |
b1248f16 | 1749 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1750 | do_execfree(); |
a687059c | 1751 | goto doshell; |
b1248f16 | 1752 | } |
a0f2c8ec | 1753 | S_exec_failed(aTHX_ PL_Argv[0], fd, do_report); |
a687059c | 1754 | } |
ff8e2863 | 1755 | do_execfree(); |
15db3ae2 | 1756 | Safefree(buf); |
738ab09f | 1757 | return FALSE; |
a687059c LW |
1758 | } |
1759 | ||
6890e559 | 1760 | #endif /* OS2 || WIN32 */ |
760ac839 | 1761 | |
79072805 | 1762 | I32 |
5aaab254 | 1763 | Perl_apply(pTHX_ I32 type, SV **mark, SV **sp) |
a687059c | 1764 | { |
eb578fdb KW |
1765 | I32 val; |
1766 | I32 tot = 0; | |
4634a855 | 1767 | const char *const what = PL_op_name[type]; |
5c144d81 | 1768 | const char *s; |
84c7b88c | 1769 | STRLEN len; |
890ce7af | 1770 | SV ** const oldmark = mark; |
885b4b39 | 1771 | bool killgp = FALSE; |
a687059c | 1772 | |
7918f24d NC |
1773 | PERL_ARGS_ASSERT_APPLY; |
1774 | ||
9a9b5ec9 DM |
1775 | PERL_UNUSED_VAR(what); /* may not be used depending on compile options */ |
1776 | ||
1444765e NC |
1777 | /* Doing this ahead of the switch statement preserves the old behaviour, |
1778 | where attempting to use kill as a taint test test would fail on | |
1779 | platforms where kill was not defined. */ | |
1780 | #ifndef HAS_KILL | |
1781 | if (type == OP_KILL) | |
4634a855 | 1782 | Perl_die(aTHX_ PL_no_func, what); |
1444765e NC |
1783 | #endif |
1784 | #ifndef HAS_CHOWN | |
1785 | if (type == OP_CHOWN) | |
4634a855 | 1786 | Perl_die(aTHX_ PL_no_func, what); |
1444765e NC |
1787 | #endif |
1788 | ||
1789 | ||
20408e3c | 1790 | #define APPLY_TAINT_PROPER() \ |
3280af22 | 1791 | STMT_START { \ |
284167a5 | 1792 | if (TAINT_get) { TAINT_PROPER(what); } \ |
873ef191 | 1793 | } STMT_END |
20408e3c GS |
1794 | |
1795 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
284167a5 | 1796 | if (TAINTING_get) { |
463ee0b2 | 1797 | while (++mark <= sp) { |
bbce6d69 | 1798 | if (SvTAINTED(*mark)) { |
1799 | TAINT; | |
1800 | break; | |
1801 | } | |
463ee0b2 LW |
1802 | } |
1803 | mark = oldmark; | |
1804 | } | |
a687059c | 1805 | switch (type) { |
79072805 | 1806 | case OP_CHMOD: |
20408e3c | 1807 | APPLY_TAINT_PROPER(); |
79072805 | 1808 | if (++mark <= sp) { |
4ea561bc | 1809 | val = SvIV(*mark); |
20408e3c GS |
1810 | APPLY_TAINT_PROPER(); |
1811 | tot = sp - mark; | |
79072805 | 1812 | while (++mark <= sp) { |
c4aca7d0 | 1813 | GV* gv; |
2ea1cce7 | 1814 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
c4aca7d0 GA |
1815 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1816 | #ifdef HAS_FCHMOD | |
375ed12a | 1817 | int fd = PerlIO_fileno(IoIFP(GvIOn(gv))); |
c4aca7d0 | 1818 | APPLY_TAINT_PROPER(); |
375ed12a JH |
1819 | if (fd < 0) { |
1820 | SETERRNO(EBADF,RMS_IFI); | |
1821 | tot--; | |
1822 | } else if (fchmod(fd, val)) | |
1823 | tot--; | |
c4aca7d0 | 1824 | #else |
b9c6780e | 1825 | Perl_die(aTHX_ PL_no_func, "fchmod"); |
c4aca7d0 GA |
1826 | #endif |
1827 | } | |
1828 | else { | |
8334cae6 | 1829 | SETERRNO(EBADF,RMS_IFI); |
c4aca7d0 GA |
1830 | tot--; |
1831 | } | |
1832 | } | |
c4aca7d0 | 1833 | else { |
41188aa0 | 1834 | const char *name = SvPV_nomg_const(*mark, len); |
c4aca7d0 | 1835 | APPLY_TAINT_PROPER(); |
41188aa0 | 1836 | if (!IS_SAFE_PATHNAME(name, len, "chmod") || |
c8028aa6 TC |
1837 | PerlLIO_chmod(name, val)) { |
1838 | tot--; | |
1839 | } | |
c4aca7d0 | 1840 | } |
a687059c LW |
1841 | } |
1842 | } | |
1843 | break; | |
fe14fcc3 | 1844 | #ifdef HAS_CHOWN |
79072805 | 1845 | case OP_CHOWN: |
20408e3c | 1846 | APPLY_TAINT_PROPER(); |
79072805 | 1847 | if (sp - mark > 2) { |
eb578fdb | 1848 | I32 val2; |
463ee0b2 LW |
1849 | val = SvIVx(*++mark); |
1850 | val2 = SvIVx(*++mark); | |
20408e3c | 1851 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1852 | tot = sp - mark; |
79072805 | 1853 | while (++mark <= sp) { |
c4aca7d0 | 1854 | GV* gv; |
2ea1cce7 | 1855 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
c4aca7d0 GA |
1856 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1857 | #ifdef HAS_FCHOWN | |
375ed12a | 1858 | int fd = PerlIO_fileno(IoIFP(GvIOn(gv))); |
c4aca7d0 | 1859 | APPLY_TAINT_PROPER(); |
375ed12a | 1860 | if (fd < 0) { |
dd1dbff0 | 1861 | SETERRNO(EBADF,RMS_IFI); |
f95ba548 | 1862 | tot--; |
375ed12a | 1863 | } else if (fchown(fd, val, val2)) |
c4aca7d0 GA |
1864 | tot--; |
1865 | #else | |
b9c6780e | 1866 | Perl_die(aTHX_ PL_no_func, "fchown"); |
c4aca7d0 GA |
1867 | #endif |
1868 | } | |
1869 | else { | |
8334cae6 | 1870 | SETERRNO(EBADF,RMS_IFI); |
c4aca7d0 GA |
1871 | tot--; |
1872 | } | |
1873 | } | |
c4aca7d0 | 1874 | else { |
41188aa0 | 1875 | const char *name = SvPV_nomg_const(*mark, len); |
c4aca7d0 | 1876 | APPLY_TAINT_PROPER(); |
41188aa0 | 1877 | if (!IS_SAFE_PATHNAME(name, len, "chown") || |
c8028aa6 | 1878 | PerlLIO_chown(name, val, val2)) { |
c4aca7d0 | 1879 | tot--; |
c8028aa6 | 1880 | } |
c4aca7d0 | 1881 | } |
a687059c LW |
1882 | } |
1883 | } | |
1884 | break; | |
b1248f16 | 1885 | #endif |
a1d180c4 | 1886 | /* |
dd64f1c3 AD |
1887 | XXX Should we make lchown() directly available from perl? |
1888 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1889 | nothing in the core. | |
1890 | --AD 5/1998 | |
1891 | */ | |
fe14fcc3 | 1892 | #ifdef HAS_KILL |
79072805 | 1893 | case OP_KILL: |
20408e3c | 1894 | APPLY_TAINT_PROPER(); |
55497cff | 1895 | if (mark == sp) |
1896 | break; | |
84c7b88c | 1897 | s = SvPVx_const(*++mark, len); |
c2fd40cb DM |
1898 | if (*s == '-' && isALPHA(s[1])) |
1899 | { | |
1900 | s++; | |
1901 | len--; | |
885b4b39 | 1902 | killgp = TRUE; |
c2fd40cb | 1903 | } |
e02bfb16 | 1904 | if (isALPHA(*s)) { |
84c7b88c | 1905 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') { |
79072805 | 1906 | s += 3; |
84c7b88c BF |
1907 | len -= 3; |
1908 | } | |
1909 | if ((val = whichsig_pvn(s, len)) < 0) | |
147e3846 KW |
1910 | Perl_croak(aTHX_ "Unrecognized signal name \"%" SVf "\"", |
1911 | SVfARG(*mark)); | |
79072805 LW |
1912 | } |
1913 | else | |
c2fd40cb | 1914 | { |
4ea561bc | 1915 | val = SvIV(*mark); |
c2fd40cb DM |
1916 | if (val < 0) |
1917 | { | |
885b4b39 | 1918 | killgp = TRUE; |
c2fd40cb DM |
1919 | val = -val; |
1920 | } | |
1921 | } | |
20408e3c GS |
1922 | APPLY_TAINT_PROPER(); |
1923 | tot = sp - mark; | |
fbcd93f0 | 1924 | |
c2fd40cb | 1925 | while (++mark <= sp) { |
60082291 | 1926 | Pid_t proc; |
c2fd40cb | 1927 | SvGETMAGIC(*mark); |
60082291 | 1928 | if (!(SvNIOK(*mark) || looks_like_number(*mark))) |
c2fd40cb DM |
1929 | Perl_croak(aTHX_ "Can't kill a non-numeric process ID"); |
1930 | proc = SvIV_nomg(*mark); | |
c2fd40cb | 1931 | APPLY_TAINT_PROPER(); |
111f73b5 DM |
1932 | #ifdef HAS_KILLPG |
1933 | /* use killpg in preference, as the killpg() wrapper for Win32 | |
1934 | * understands process groups, but the kill() wrapper doesn't */ | |
1935 | if (killgp ? PerlProc_killpg(proc, val) | |
1936 | : PerlProc_kill(proc, val)) | |
1937 | #else | |
1938 | if (PerlProc_kill(killgp ? -proc: proc, val)) | |
1939 | #endif | |
c2fd40cb | 1940 | tot--; |
a687059c | 1941 | } |
8165faea | 1942 | PERL_ASYNC_CHECK(); |
a687059c | 1943 | break; |
b1248f16 | 1944 | #endif |
79072805 | 1945 | case OP_UNLINK: |
20408e3c | 1946 | APPLY_TAINT_PROPER(); |
79072805 LW |
1947 | tot = sp - mark; |
1948 | while (++mark <= sp) { | |
41188aa0 | 1949 | s = SvPV_const(*mark, len); |
20408e3c | 1950 | APPLY_TAINT_PROPER(); |
41188aa0 | 1951 | if (!IS_SAFE_PATHNAME(s, len, "unlink")) { |
c8028aa6 TC |
1952 | tot--; |
1953 | } | |
f0d85c30 | 1954 | else if (PL_unsafe) { |
b8ffc8df | 1955 | if (UNLINK(s)) |
5cdd1fc2 | 1956 | { |
a687059c | 1957 | tot--; |
5cdd1fc2 AB |
1958 | } |
1959 | #if defined(__amigaos4__) && defined(NEWLIB) | |
1960 | else | |
1961 | { | |
1962 | /* Under AmigaOS4 unlink only 'fails' if the | |
1963 | * filename is invalid. It may not remove the file | |
1964 | * if it's locked, so check if it's still around. */ | |
1965 | if ((access(s,F_OK) != -1)) | |
1966 | { | |
1967 | tot--; | |
1968 | } | |
1969 | } | |
1970 | #endif | |
a687059c LW |
1971 | } |
1972 | else { /* don't let root wipe out directories without -U */ | |
45a23732 DD |
1973 | Stat_t statbuf; |
1974 | if (PerlLIO_lstat(s, &statbuf) < 0) | |
1dcae8b8 | 1975 | tot--; |
45a23732 | 1976 | else if (S_ISDIR(statbuf.st_mode)) { |
cd52bc19 | 1977 | SETERRNO(EISDIR, SS_NOPRIV); |
45a23732 | 1978 | tot--; |
1dcae8b8 | 1979 | } |
a687059c | 1980 | else { |
b8ffc8df | 1981 | if (UNLINK(s)) |
5cdd1fc2 AB |
1982 | { |
1983 | tot--; | |
1984 | } | |
1985 | #if defined(__amigaos4__) && defined(NEWLIB) | |
1986 | else | |
1987 | { | |
1988 | /* Under AmigaOS4 unlink only 'fails' if the filename is invalid */ | |
1989 | /* It may not remove the file if it's Locked, so check if it's still */ | |
1990 | /* arround */ | |
1991 | if((access(s,F_OK) != -1)) | |
1992 | { | |
1993 | tot--; | |
1994 | } | |
1995 | } | |
1996 | #endif | |
a687059c LW |
1997 | } |
1998 | } | |
1999 | } | |
2000 | break; | |
e96b369d | 2001 | #if defined(HAS_UTIME) || defined(HAS_FUTIMES) |
79072805 | 2002 | case OP_UTIME: |
20408e3c | 2003 | APPLY_TAINT_PROPER(); |
79072805 | 2004 | if (sp - mark > 2) { |
e96b369d GA |
2005 | #if defined(HAS_FUTIMES) |
2006 | struct timeval utbuf[2]; | |
2007 | void *utbufp = utbuf; | |
2008 | #elif defined(I_UTIME) || defined(VMS) | |
663a0e37 | 2009 | struct utimbuf utbuf; |
07409e01 | 2010 | struct utimbuf *utbufp = &utbuf; |
663a0e37 | 2011 | #else |
a687059c | 2012 | struct { |
dd2821f6 GS |
2013 | Time_t actime; |
2014 | Time_t modtime; | |
a687059c | 2015 | } utbuf; |
07409e01 | 2016 | void *utbufp = &utbuf; |
663a0e37 | 2017 | #endif |
a687059c | 2018 | |
0bcc34c2 AL |
2019 | SV* const accessed = *++mark; |
2020 | SV* const modified = *++mark; | |
c6f7b413 | 2021 | |
6ec06612 SB |
2022 | /* Be like C, and if both times are undefined, let the C |
2023 | * library figure out what to do. This usually means | |
2024 | * "current time". */ | |
c6f7b413 RS |
2025 | |
2026 | if ( accessed == &PL_sv_undef && modified == &PL_sv_undef ) | |
6ec06612 SB |
2027 | utbufp = NULL; |
2028 | else { | |
2029 | Zero(&utbuf, sizeof utbuf, char); | |
e96b369d | 2030 | #ifdef HAS_FUTIMES |
4ea561bc | 2031 | utbuf[0].tv_sec = (long)SvIV(accessed); /* time accessed */ |
e96b369d | 2032 | utbuf[0].tv_usec = 0; |
4ea561bc | 2033 | utbuf[1].tv_sec = (long)SvIV(modified); /* time modified */ |
e96b369d GA |
2034 | utbuf[1].tv_usec = 0; |
2035 | #elif defined(BIG_TIME) | |
4ea561bc NC |
2036 | utbuf.actime = (Time_t)SvNV(accessed); /* time accessed */ |
2037 | utbuf.modtime = (Time_t)SvNV(modified); /* time modified */ | |
517844ec | 2038 | #else |
4ea561bc NC |
2039 | utbuf.actime = (Time_t)SvIV(accessed); /* time accessed */ |
2040 | utbuf.modtime = (Time_t)SvIV(modified); /* time modified */ | |
517844ec | 2041 | #endif |
6ec06612 | 2042 | } |
4373e329 | 2043 | APPLY_TAINT_PROPER(); |
79072805 LW |
2044 | tot = sp - mark; |
2045 | while (++mark <= sp) { | |
e96b369d | 2046 | GV* gv; |
64617da9 | 2047 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
e96b369d GA |
2048 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
2049 | #ifdef HAS_FUTIMES | |
375ed12a | 2050 | int fd = PerlIO_fileno(IoIFP(GvIOn(gv))); |
e96b369d | 2051 | APPLY_TAINT_PROPER(); |
375ed12a JH |
2052 | if (fd < 0) { |
2053 | SETERRNO(EBADF,RMS_IFI); | |
2054 | tot--; | |
2055 | } else if (futimes(fd, (struct timeval *) utbufp)) | |
e96b369d GA |
2056 | tot--; |
2057 | #else | |
2058 | Perl_die(aTHX_ PL_no_func, "futimes"); | |
2059 | #endif | |
2060 | } | |
2061 | else { | |
2062 | tot--; | |
2063 | } | |
2064 | } | |
e96b369d | 2065 | else { |
41188aa0 | 2066 | const char * const name = SvPV_nomg_const(*mark, len); |
e96b369d | 2067 | APPLY_TAINT_PROPER(); |
41188aa0 | 2068 | if (!IS_SAFE_PATHNAME(name, len, "utime")) { |
c8028aa6 TC |
2069 | tot--; |
2070 | } | |
2071 | else | |
e96b369d | 2072 | #ifdef HAS_FUTIMES |
8b7231d9 | 2073 | if (utimes(name, (struct timeval *)utbufp)) |
e96b369d GA |
2074 | #else |
2075 | if (PerlLIO_utime(name, utbufp)) | |
2076 | #endif | |
2077 | tot--; | |
2078 | } | |
2079 | ||
a687059c | 2080 | } |
a687059c LW |
2081 | } |
2082 | else | |
79072805 | 2083 | tot = 0; |
a687059c | 2084 | break; |
a0d0e21e | 2085 | #endif |
a687059c LW |
2086 | } |
2087 | return tot; | |
20408e3c | 2088 | |
20408e3c | 2089 | #undef APPLY_TAINT_PROPER |
a687059c LW |
2090 | } |
2091 | ||
bd93adf5 | 2092 | /* Do the permissions in *statbufp allow some operation? */ |
a0d0e21e | 2093 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae | 2094 | bool |
5aaab254 | 2095 | Perl_cando(pTHX_ Mode_t mode, bool effective, const Stat_t *statbufp) |
ae1951c1 NC |
2096 | /* effective is a flag, true for EUID, or for checking if the effective gid |
2097 | * is in the list of groups returned from getgroups(). | |
2098 | */ | |
a687059c | 2099 | { |
7918f24d | 2100 | PERL_ARGS_ASSERT_CANDO; |
81611534 | 2101 | PERL_UNUSED_CONTEXT; |
7918f24d | 2102 | |
bee1dbe2 | 2103 | #ifdef DOSISH |
fe14fcc3 LW |
2104 | /* [Comments and code from Len Reed] |
2105 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
2106 | * to write-protected files. The execute permission bit is set | |
486ec47a | 2107 | * by the Microsoft C library stat() function for the following: |
fe14fcc3 LW |
2108 | * .exe files |
2109 | * .com files | |
2110 | * .bat files | |
2111 | * directories | |
2112 | * All files and directories are readable. | |
2113 | * Directories and special files, e.g. "CON", cannot be | |
2114 | * write-protected. | |
2115 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
2116 | * bit set in the file system, but DOS permits changes to | |
2117 | * the directory anyway. In addition, all bets are off | |
2118 | * here for networked software, such as Novell and | |
2119 | * Sun's PC-NFS.] | |
2120 | */ | |
2121 | ||
bee1dbe2 LW |
2122 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
2123 | * too so it will actually look into the files for magic numbers | |
2124 | */ | |
8298454c | 2125 | return cBOOL(mode & statbufp->st_mode); |
fe14fcc3 | 2126 | |
55497cff | 2127 | #else /* ! DOSISH */ |
b595cd4b RU |
2128 | # ifdef __CYGWIN__ |
2129 | if (ingroup(544,effective)) { /* member of Administrators */ | |
2130 | # else | |
985213f2 | 2131 | if ((effective ? PerlProc_geteuid() : PerlProc_getuid()) == 0) { /* root is special */ |
b595cd4b | 2132 | # endif |
7f4774ae | 2133 | if (mode == S_IXUSR) { |
c623bd54 | 2134 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c LW |
2135 | return TRUE; |
2136 | } | |
2137 | else | |
2138 | return TRUE; /* root reads and writes anything */ | |
2139 | return FALSE; | |
2140 | } | |
985213f2 | 2141 | if (statbufp->st_uid == (effective ? PerlProc_geteuid() : PerlProc_getuid()) ) { |
7f4774ae | 2142 | if (statbufp->st_mode & mode) |
a687059c LW |
2143 | return TRUE; /* ok as "user" */ |
2144 | } | |
d8eceb89 | 2145 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae | 2146 | if (statbufp->st_mode & mode >> 3) |
a687059c LW |
2147 | return TRUE; /* ok as "group" */ |
2148 | } | |
7f4774ae | 2149 | else if (statbufp->st_mode & mode >> 6) |
a687059c LW |
2150 | return TRUE; /* ok as "other" */ |
2151 | return FALSE; | |
55497cff | 2152 | #endif /* ! DOSISH */ |
a687059c | 2153 | } |
a0d0e21e | 2154 | #endif /* ! VMS */ |
a687059c | 2155 | |
1f676739 | 2156 | static bool |
0da8eb3a | 2157 | S_ingroup(pTHX_ Gid_t testgid, bool effective) |
a687059c | 2158 | { |
81611534 JH |
2159 | #ifndef PERL_IMPLICIT_SYS |
2160 | /* PERL_IMPLICIT_SYS like Win32: getegid() etc. require the context. */ | |
2161 | PERL_UNUSED_CONTEXT; | |
2162 | #endif | |
985213f2 | 2163 | if (testgid == (effective ? PerlProc_getegid() : PerlProc_getgid())) |
a687059c | 2164 | return TRUE; |
fe14fcc3 | 2165 | #ifdef HAS_GETGROUPS |
a687059c | 2166 | { |
331b57bc | 2167 | Groups_t *gary = NULL; |
79072805 | 2168 | I32 anum; |
331b57bc | 2169 | bool rc = FALSE; |
a687059c | 2170 | |
331b57bc | 2171 | anum = getgroups(0, gary); |
375ed12a JH |
2172 | if (anum > 0) { |
2173 | Newx(gary, anum, Groups_t); | |
2174 | anum = getgroups(anum, gary); | |
2175 | while (--anum >= 0) | |
2176 | if (gary[anum] == testgid) { | |
2177 | rc = TRUE; | |
2178 | break; | |
2179 | } | |
331b57bc | 2180 | |
375ed12a JH |
2181 | Safefree(gary); |
2182 | } | |
331b57bc | 2183 | return rc; |
a687059c | 2184 | } |
c685562b | 2185 | #else |
a687059c | 2186 | return FALSE; |
cd39f2b6 | 2187 | #endif |
a687059c | 2188 | } |
c2ab57d4 | 2189 | |
fe14fcc3 | 2190 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 2191 | |
79072805 | 2192 | I32 |
864dbfa3 | 2193 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2194 | { |
0bcc34c2 | 2195 | const key_t key = (key_t)SvNVx(*++mark); |
c3312966 | 2196 | SV *nsv = optype == OP_MSGGET ? NULL : *++mark; |
6867be6d | 2197 | const I32 flags = SvIVx(*++mark); |
294a48e9 | 2198 | |
7918f24d | 2199 | PERL_ARGS_ASSERT_DO_IPCGET; |
294a48e9 | 2200 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2201 | |
748a9306 | 2202 | SETERRNO(0,0); |
c2ab57d4 LW |
2203 | switch (optype) |
2204 | { | |
fe14fcc3 | 2205 | #ifdef HAS_MSG |
79072805 | 2206 | case OP_MSGGET: |
c2ab57d4 | 2207 | return msgget(key, flags); |
e5d73d77 | 2208 | #endif |
fe14fcc3 | 2209 | #ifdef HAS_SEM |
79072805 | 2210 | case OP_SEMGET: |
c3312966 | 2211 | return semget(key, (int) SvIV(nsv), flags); |
e5d73d77 | 2212 | #endif |
fe14fcc3 | 2213 | #ifdef HAS_SHM |
79072805 | 2214 | case OP_SHMGET: |
c3312966 | 2215 | return shmget(key, (size_t) SvUV(nsv), flags); |
e5d73d77 | 2216 | #endif |
fe14fcc3 | 2217 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2218 | default: |
fe13d51d | 2219 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2220 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2221 | #endif |
c2ab57d4 LW |
2222 | } |
2223 | return -1; /* should never happen */ | |
2224 | } | |
2225 | ||
79072805 | 2226 | I32 |
864dbfa3 | 2227 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2228 | { |
c2ab57d4 | 2229 | char *a; |
a0d0e21e | 2230 | I32 ret = -1; |
6867be6d | 2231 | const I32 id = SvIVx(*++mark); |
95b63a38 | 2232 | #ifdef Semctl |
6867be6d | 2233 | const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
95b63a38 | 2234 | #endif |
6867be6d | 2235 | const I32 cmd = SvIVx(*++mark); |
0bcc34c2 AL |
2236 | SV * const astr = *++mark; |
2237 | STRLEN infosize = 0; | |
2238 | I32 getinfo = (cmd == IPC_STAT); | |
c2ab57d4 | 2239 | |
7918f24d | 2240 | PERL_ARGS_ASSERT_DO_IPCCTL; |
0bcc34c2 | 2241 | PERL_UNUSED_ARG(sp); |
c2ab57d4 LW |
2242 | |
2243 | switch (optype) | |
2244 | { | |
fe14fcc3 | 2245 | #ifdef HAS_MSG |
79072805 | 2246 | case OP_MSGCTL: |
c2ab57d4 LW |
2247 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2248 | infosize = sizeof(struct msqid_ds); | |
2249 | break; | |
e5d73d77 | 2250 | #endif |
fe14fcc3 | 2251 | #ifdef HAS_SHM |
79072805 | 2252 | case OP_SHMCTL: |
c2ab57d4 LW |
2253 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2254 | infosize = sizeof(struct shmid_ds); | |
2255 | break; | |
e5d73d77 | 2256 | #endif |
fe14fcc3 | 2257 | #ifdef HAS_SEM |
79072805 | 2258 | case OP_SEMCTL: |
39398f3f | 2259 | #ifdef Semctl |
c2ab57d4 LW |
2260 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2261 | infosize = sizeof(struct semid_ds); | |
2262 | else if (cmd == GETALL || cmd == SETALL) | |
2263 | { | |
8e591e46 | 2264 | struct semid_ds semds; |
bd89102f | 2265 | union semun semun; |
e6f0bdd6 GS |
2266 | #ifdef EXTRA_F_IN_SEMUN_BUF |
2267 | semun.buff = &semds; | |
2268 | #else | |
84902520 | 2269 | semun.buf = &semds; |
e6f0bdd6 | 2270 | #endif |
c2ab57d4 | 2271 | getinfo = (cmd == GETALL); |
9b89d93d GB |
2272 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
2273 | return -1; | |
6e21c824 LW |
2274 | infosize = semds.sem_nsems * sizeof(short); |
2275 | /* "short" is technically wrong but much more portable | |
2276 | than guessing about u_?short(_t)? */ | |
c2ab57d4 | 2277 | } |
39398f3f | 2278 | #else |
fe13d51d | 2279 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2280 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2281 | #endif |
c2ab57d4 | 2282 | break; |
e5d73d77 | 2283 | #endif |
fe14fcc3 | 2284 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2285 | default: |
fe13d51d | 2286 | /* diag_listed_as: shm%s not implemented */ |
cea2e8a9 | 2287 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2288 | #endif |
c2ab57d4 LW |
2289 | } |
2290 | ||
2291 | if (infosize) | |
2292 | { | |
2293 | if (getinfo) | |
2294 | { | |
93524f2b | 2295 | SvPV_force_nolen(astr); |
a0d0e21e | 2296 | a = SvGROW(astr, infosize+1); |
c2ab57d4 LW |
2297 | } |
2298 | else | |
2299 | { | |
93524f2b | 2300 | STRLEN len; |
463ee0b2 LW |
2301 | a = SvPV(astr, len); |
2302 | if (len != infosize) | |
cea2e8a9 | 2303 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 JH |
2304 | PL_op_desc[optype], |
2305 | (unsigned long)len, | |
2306 | (long)infosize); | |
c2ab57d4 LW |
2307 | } |
2308 | } | |
2309 | else | |
2310 | { | |
0bcc34c2 | 2311 | const IV i = SvIV(astr); |
56431972 | 2312 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 | 2313 | } |
748a9306 | 2314 | SETERRNO(0,0); |
c2ab57d4 LW |
2315 | switch (optype) |
2316 | { | |
fe14fcc3 | 2317 | #ifdef HAS_MSG |
79072805 | 2318 | case OP_MSGCTL: |
bee1dbe2 | 2319 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 2320 | break; |
e5d73d77 | 2321 | #endif |
fe14fcc3 | 2322 | #ifdef HAS_SEM |
bd89102f | 2323 | case OP_SEMCTL: { |
39398f3f | 2324 | #ifdef Semctl |
bd89102f AD |
2325 | union semun unsemds; |
2326 | ||
64d76282 BC |
2327 | if(cmd == SETVAL) { |
2328 | unsemds.val = PTR2nat(a); | |
2329 | } | |
2330 | else { | |
e6f0bdd6 | 2331 | #ifdef EXTRA_F_IN_SEMUN_BUF |
64d76282 | 2332 | unsemds.buff = (struct semid_ds *)a; |
e6f0bdd6 | 2333 | #else |
64d76282 | 2334 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 | 2335 | #endif |
64d76282 | 2336 | } |
bd89102f | 2337 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f | 2338 | #else |
fe13d51d | 2339 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2340 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2341 | #endif |
bd89102f | 2342 | } |
c2ab57d4 | 2343 | break; |
e5d73d77 | 2344 | #endif |
fe14fcc3 | 2345 | #ifdef HAS_SHM |
79072805 | 2346 | case OP_SHMCTL: |
bee1dbe2 | 2347 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 2348 | break; |
e5d73d77 | 2349 | #endif |
c2ab57d4 LW |
2350 | } |
2351 | if (getinfo && ret >= 0) { | |
79072805 LW |
2352 | SvCUR_set(astr, infosize); |
2353 | *SvEND(astr) = '\0'; | |
a0d0e21e | 2354 | SvSETMAGIC(astr); |
c2ab57d4 LW |
2355 | } |
2356 | return ret; | |
2357 | } | |
2358 | ||
79072805 | 2359 | I32 |
864dbfa3 | 2360 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2361 | { |
fe14fcc3 | 2362 | #ifdef HAS_MSG |
463ee0b2 | 2363 | STRLEN len; |
6867be6d | 2364 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2365 | SV * const mstr = *++mark; |
2366 | const I32 flags = SvIVx(*++mark); | |
2367 | const char * const mbuf = SvPV_const(mstr, len); | |
2368 | const I32 msize = len - sizeof(long); | |
2369 | ||
7918f24d | 2370 | PERL_ARGS_ASSERT_DO_MSGSND; |
890ce7af | 2371 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2372 | |
0bcc34c2 | 2373 | if (msize < 0) |
cea2e8a9 | 2374 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 | 2375 | SETERRNO(0,0); |
681fb693 JH |
2376 | if (id >= 0 && flags >= 0) { |
2377 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); | |
2378 | } else { | |
2379 | SETERRNO(EINVAL,LIB_INVARG); | |
2380 | return -1; | |
2381 | } | |
e5d73d77 | 2382 | #else |
2d51fa4d RGS |
2383 | PERL_UNUSED_ARG(sp); |
2384 | PERL_UNUSED_ARG(mark); | |
fe13d51d | 2385 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2386 | Perl_croak(aTHX_ "msgsnd not implemented"); |
7c522378 | 2387 | return -1; |
e5d73d77 | 2388 | #endif |
c2ab57d4 LW |
2389 | } |
2390 | ||
79072805 | 2391 | I32 |
864dbfa3 | 2392 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2393 | { |
fe14fcc3 | 2394 | #ifdef HAS_MSG |
c2ab57d4 LW |
2395 | char *mbuf; |
2396 | long mtype; | |
6867be6d | 2397 | I32 msize, flags, ret; |
6867be6d | 2398 | const I32 id = SvIVx(*++mark); |
0bcc34c2 | 2399 | SV * const mstr = *++mark; |
7918f24d NC |
2400 | |
2401 | PERL_ARGS_ASSERT_DO_MSGRCV; | |
890ce7af | 2402 | PERL_UNUSED_ARG(sp); |
79072805 | 2403 | |
c2e66d9e GS |
2404 | /* suppress warning when reading into undef var --jhi */ |
2405 | if (! SvOK(mstr)) | |
8062ff11 | 2406 | SvPVCLEAR(mstr); |
463ee0b2 LW |
2407 | msize = SvIVx(*++mark); |
2408 | mtype = (long)SvIVx(*++mark); | |
2409 | flags = SvIVx(*++mark); | |
93524f2b | 2410 | SvPV_force_nolen(mstr); |
a0d0e21e | 2411 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
a1d180c4 | 2412 | |
748a9306 | 2413 | SETERRNO(0,0); |
d2607e1e JH |
2414 | if (id >= 0 && msize >= 0 && flags >= 0) { |
2415 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); | |
2416 | } else { | |
2417 | SETERRNO(EINVAL,LIB_INVARG); | |
2418 | ret = -1; | |
2419 | } | |
c2ab57d4 | 2420 | if (ret >= 0) { |
79072805 LW |
2421 | SvCUR_set(mstr, sizeof(long)+ret); |
2422 | *SvEND(mstr) = '\0'; | |
41d6edb2 JH |
2423 | /* who knows who has been playing with this message? */ |
2424 | SvTAINTED_on(mstr); | |
c2ab57d4 LW |
2425 | } |
2426 | return ret; | |
e5d73d77 | 2427 | #else |
2d51fa4d RGS |
2428 | PERL_UNUSED_ARG(sp); |
2429 | PERL_UNUSED_ARG(mark); | |
fe13d51d | 2430 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2431 | Perl_croak(aTHX_ "msgrcv not implemented"); |
7c522378 | 2432 | return -1; |
e5d73d77 | 2433 | #endif |
c2ab57d4 LW |
2434 | } |
2435 | ||
79072805 | 2436 | I32 |
864dbfa3 | 2437 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2438 | { |
fe14fcc3 | 2439 | #ifdef HAS_SEM |
463ee0b2 | 2440 | STRLEN opsize; |
6867be6d | 2441 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2442 | SV * const opstr = *++mark; |
2443 | const char * const opbuf = SvPV_const(opstr, opsize); | |
7918f24d NC |
2444 | |
2445 | PERL_ARGS_ASSERT_DO_SEMOP; | |
890ce7af | 2446 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2447 | |
248ff010 NC |
2448 | if (opsize < 3 * SHORTSIZE |
2449 | || (opsize % (3 * SHORTSIZE))) { | |
93189314 | 2450 | SETERRNO(EINVAL,LIB_INVARG); |
c2ab57d4 LW |
2451 | return -1; |
2452 | } | |
748a9306 | 2453 | SETERRNO(0,0); |
248ff010 NC |
2454 | /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */ |
2455 | { | |
6867be6d | 2456 | const int nsops = opsize / (3 * sizeof (short)); |
248ff010 | 2457 | int i = nsops; |
0bcc34c2 | 2458 | short * const ops = (short *) opbuf; |
248ff010 NC |
2459 | short *o = ops; |
2460 | struct sembuf *temps, *t; | |
2461 | I32 result; | |
2462 | ||
a02a5408 | 2463 | Newx (temps, nsops, struct sembuf); |
248ff010 NC |
2464 | t = temps; |
2465 | while (i--) { | |
2466 | t->sem_num = *o++; | |
2467 | t->sem_op = *o++; | |
2468 | t->sem_flg = *o++; | |
2469 | t++; | |
2470 | } | |
2471 | result = semop(id, temps, nsops); | |
248ff010 NC |
2472 | Safefree(temps); |
2473 | return result; | |
2474 | } | |
e5d73d77 | 2475 | #else |
fe13d51d | 2476 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2477 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 | 2478 | #endif |
c2ab57d4 LW |
2479 | } |
2480 | ||
79072805 | 2481 | I32 |
864dbfa3 | 2482 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2483 | { |
fe14fcc3 | 2484 | #ifdef HAS_SHM |
4373e329 | 2485 | char *shm; |
c2ab57d4 | 2486 | struct shmid_ds shmds; |
6867be6d | 2487 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2488 | SV * const mstr = *++mark; |
2489 | const I32 mpos = SvIVx(*++mark); | |
2490 | const I32 msize = SvIVx(*++mark); | |
7918f24d NC |
2491 | |
2492 | PERL_ARGS_ASSERT_DO_SHMIO; | |
890ce7af | 2493 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2494 | |
748a9306 | 2495 | SETERRNO(0,0); |
c2ab57d4 LW |
2496 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
2497 | return -1; | |
7f39519f NC |
2498 | if (mpos < 0 || msize < 0 |
2499 | || (size_t)mpos + msize > (size_t)shmds.shm_segsz) { | |
93189314 | 2500 | SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
2501 | return -1; |
2502 | } | |
568fc267 JH |
2503 | if (id >= 0) { |
2504 | shm = (char *)shmat(id, NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); | |
2505 | } else { | |
2506 | SETERRNO(EINVAL,LIB_INVARG); | |
2507 | return -1; | |
2508 | } | |
c2ab57d4 LW |
2509 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2510 | return -1; | |
79072805 | 2511 | if (optype == OP_SHMREAD) { |
c8ae91a8 | 2512 | char *mbuf; |
9f538c04 | 2513 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
b399897d CS |
2514 | SvGETMAGIC(mstr); |
2515 | SvUPGRADE(mstr, SVt_PV); | |
9f538c04 | 2516 | if (! SvOK(mstr)) |
8062ff11 | 2517 | SvPVCLEAR(mstr); |
af8ff727 | 2518 | SvPOK_only(mstr); |
bb7a0f54 | 2519 | mbuf = SvGROW(mstr, (STRLEN)msize+1); |
a0d0e21e | 2520 | |
bee1dbe2 | 2521 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
2522 | SvCUR_set(mstr, msize); |
2523 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 2524 | SvSETMAGIC(mstr); |
d929ce6f JH |
2525 | /* who knows who has been playing with this shared memory? */ |
2526 | SvTAINTED_on(mstr); | |
c2ab57d4 LW |
2527 | } |
2528 | else { | |
93524f2b | 2529 | STRLEN len; |
c2ab57d4 | 2530 | |
93524f2b | 2531 | const char *mbuf = SvPV_const(mstr, len); |
027aa12d | 2532 | const I32 n = ((I32)len > msize) ? msize : (I32)len; |
bee1dbe2 | 2533 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2534 | if (n < msize) |
bee1dbe2 | 2535 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2536 | } |
2537 | return shmdt(shm); | |
e5d73d77 | 2538 | #else |
fe13d51d | 2539 | /* diag_listed_as: shm%s not implemented */ |
cea2e8a9 | 2540 | Perl_croak(aTHX_ "shm I/O not implemented"); |
7c522378 | 2541 | return -1; |
e5d73d77 | 2542 | #endif |
c2ab57d4 LW |
2543 | } |
2544 | ||
fe14fcc3 | 2545 | #endif /* SYSV IPC */ |
4e35701f | 2546 | |
0d44d22b | 2547 | /* |
ccfc67b7 JH |
2548 | =head1 IO Functions |
2549 | ||
0d44d22b NC |
2550 | =for apidoc start_glob |
2551 | ||
2552 | Function called by C<do_readline> to spawn a glob (or do the glob inside | |
154e47c8 | 2553 | perl on VMS). This code used to be inline, but now perl uses C<File::Glob> |
25047fde KW |
2554 | this glob starter is only used by miniperl during the build process, |
2555 | or when PERL_EXTERNAL_GLOB is defined. | |
75af9d73 | 2556 | Moving it away shrinks F<pp_hot.c>; shrinking F<pp_hot.c> helps speed perl up. |
fab3f3a7 | 2557 | |
0d44d22b NC |
2558 | =cut |
2559 | */ | |
2560 | ||
2561 | PerlIO * | |
2562 | Perl_start_glob (pTHX_ SV *tmpglob, IO *io) | |
2563 | { | |
561b68a9 | 2564 | SV * const tmpcmd = newSV(0); |
0d44d22b | 2565 | PerlIO *fp; |
41188aa0 TC |
2566 | STRLEN len; |
2567 | const char *s = SvPV(tmpglob, len); | |
7918f24d NC |
2568 | |
2569 | PERL_ARGS_ASSERT_START_GLOB; | |
2570 | ||
41188aa0 | 2571 | if (!IS_SAFE_SYSCALL(s, len, "pattern", "glob")) |
c8028aa6 TC |
2572 | return NULL; |
2573 | ||
0d44d22b NC |
2574 | ENTER; |
2575 | SAVEFREESV(tmpcmd); | |
2576 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
2577 | /* since spawning off a process is a real performance hit */ | |
dca5a913 JM |
2578 | |
2579 | PerlIO * | |
2580 | Perl_vms_start_glob | |
2581 | (pTHX_ SV *tmpglob, | |
2582 | IO *io); | |
2583 | ||
49a7a762 | 2584 | fp = Perl_vms_start_glob(aTHX_ tmpglob, io); |
dca5a913 | 2585 | |
0d44d22b | 2586 | #else /* !VMS */ |
0d44d22b NC |
2587 | #ifdef DOSISH |
2588 | #ifdef OS2 | |
2589 | sv_setpv(tmpcmd, "for a in "); | |
2590 | sv_catsv(tmpcmd, tmpglob); | |
2591 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
2592 | #else | |
2593 | #ifdef DJGPP | |
2594 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
2595 | sv_catsv(tmpcmd, tmpglob); | |
2596 | #else | |
2597 | sv_setpv(tmpcmd, "perlglob "); | |
2598 | sv_catsv(tmpcmd, tmpglob); | |
2599 | sv_catpv(tmpcmd, " |"); | |
2600 | #endif /* !DJGPP */ | |
2601 | #endif /* !OS2 */ | |
2602 | #else /* !DOSISH */ | |
2603 | #if defined(CSH) | |
2604 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); | |
2605 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
2606 | sv_catsv(tmpcmd, tmpglob); | |
2607 | sv_catpv(tmpcmd, "' 2>/dev/null |"); | |
2608 | #else | |
2609 | sv_setpv(tmpcmd, "echo "); | |
2610 | sv_catsv(tmpcmd, tmpglob); | |
0d44d22b | 2611 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
0d44d22b NC |
2612 | #endif /* !CSH */ |
2613 | #endif /* !DOSISH */ | |
93b2dae1 | 2614 | { |
acffc8af FC |
2615 | SV ** const svp = hv_fetchs(GvHVn(PL_envgv), "LS_COLORS", 0); |
2616 | if (svp && *svp) | |
2617 | save_helem_flags(GvHV(PL_envgv), | |
2618 | newSVpvs_flags("LS_COLORS", SVs_TEMP), svp, | |
2619 | SAVEf_SETMAGIC); | |
93b2dae1 | 2620 | } |
d5eb9a46 NC |
2621 | (void)do_open6(PL_last_in_gv, SvPVX_const(tmpcmd), SvCUR(tmpcmd), |
2622 | NULL, NULL, 0); | |
0d44d22b NC |
2623 | fp = IoIFP(io); |
2624 | #endif /* !VMS */ | |
2625 | LEAVE; | |
de7dabb6 TC |
2626 | |
2627 | if (!fp && ckWARN(WARN_GLOB)) { | |
2628 | Perl_warner(aTHX_ packWARN(WARN_GLOB), "glob failed (can't start child: %s)", | |
2629 | Strerror(errno)); | |
2630 | } | |
2631 | ||
0d44d22b NC |
2632 | return fp; |
2633 | } | |
66610fdd RGS |
2634 | |
2635 | /* | |
14d04a33 | 2636 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 2637 | */ |