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 | { |
27da23d5 | 67 | dVAR; |
eb578fdb | 68 | IO * const io = GvIOn(gv); |
a687059c | 69 | |
a2b41d5c NC |
70 | PERL_ARGS_ASSERT_OPENN_SETUP; |
71 | ||
72 | *saveifp = NULL; | |
73 | *saveofp = NULL; | |
74 | *savefd = -1; | |
75 | *savetype = IoTYPE_CLOSED; | |
7918f24d | 76 | |
b931b1d9 | 77 | Zero(mode,sizeof(mode),char); |
3280af22 | 78 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 79 | |
b931b1d9 | 80 | /* If currently open - close before we re-open */ |
a0d0e21e | 81 | if (IoIFP(io)) { |
ee518936 NIS |
82 | if (IoTYPE(io) == IoTYPE_STD) { |
83 | /* This is a clone of one of STD* handles */ | |
ee518936 | 84 | } |
26297fe9 NC |
85 | else { |
86 | const int old_fd = PerlIO_fileno(IoIFP(io)); | |
87 | ||
88 | if (old_fd >= 0 && old_fd <= PL_maxsysfd) { | |
89 | /* This is one of the original STD* handles */ | |
a2b41d5c NC |
90 | *saveifp = IoIFP(io); |
91 | *saveofp = IoOFP(io); | |
92 | *savetype = IoTYPE(io); | |
93 | *savefd = old_fd; | |
26297fe9 NC |
94 | } |
95 | else { | |
96 | int result; | |
97 | ||
98 | if (IoTYPE(io) == IoTYPE_PIPE) | |
99 | result = PerlProc_pclose(IoIFP(io)); | |
100 | else if (IoIFP(io) != IoOFP(io)) { | |
101 | if (IoOFP(io)) { | |
102 | result = PerlIO_close(IoOFP(io)); | |
103 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
104 | } | |
105 | else | |
106 | result = PerlIO_close(IoIFP(io)); | |
107 | } | |
108 | else | |
109 | result = PerlIO_close(IoIFP(io)); | |
110 | ||
111 | if (result == EOF && old_fd > PL_maxsysfd) { | |
112 | /* Why is this not Perl_warn*() call ? */ | |
113 | PerlIO_printf(Perl_error_log, | |
114 | "Warning: unable to close filehandle %"HEKf" properly.\n", | |
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 | } | |
139 | return do_open_raw(gv, oname, len, rawmode, rawperm); | |
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, | |
146 | int rawmode, int rawperm) | |
147 | { | |
a2b41d5c NC |
148 | dVAR; |
149 | PerlIO *saveifp; | |
150 | PerlIO *saveofp; | |
151 | int savefd; | |
152 | char savetype; | |
153 | char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */ | |
154 | IO * const io = openn_setup(gv, mode, &saveifp, &saveofp, &savefd, &savetype); | |
155 | int writing = 0; | |
156 | PerlIO *fp; | |
a2b41d5c | 157 | |
4b451737 | 158 | PERL_ARGS_ASSERT_DO_OPEN_RAW; |
c07a80fd | 159 | |
4b451737 NC |
160 | /* For ease of blame back to 5.000, keep the existing indenting. */ |
161 | { | |
b931b1d9 | 162 | /* sysopen style args, i.e. integer mode and permissions */ |
ee518936 | 163 | STRLEN ix = 0; |
e1ec3a88 | 164 | const int appendtrunc = |
3dccc55c | 165 | 0 |
d1da7611 | 166 | #ifdef O_APPEND /* Not fully portable. */ |
3dccc55c | 167 | |O_APPEND |
d1da7611 JH |
168 | #endif |
169 | #ifdef O_TRUNC /* Not fully portable. */ | |
3dccc55c | 170 | |O_TRUNC |
d1da7611 | 171 | #endif |
3dccc55c | 172 | ; |
6867be6d | 173 | const int modifyingmode = O_WRONLY|O_RDWR|O_CREAT|appendtrunc; |
3dccc55c | 174 | int ismodifying; |
9229bf8d | 175 | SV *namesv; |
3dccc55c | 176 | |
3dccc55c JH |
177 | /* It's not always |
178 | ||
179 | O_RDONLY 0 | |
180 | O_WRONLY 1 | |
181 | O_RDWR 2 | |
182 | ||
183 | It might be (in OS/390 and Mac OS Classic it is) | |
184 | ||
185 | O_WRONLY 1 | |
186 | O_RDONLY 2 | |
187 | O_RDWR 3 | |
188 | ||
189 | This means that simple & with O_RDWR would look | |
190 | like O_RDONLY is present. Therefore we have to | |
191 | be more careful. | |
192 | */ | |
193 | if ((ismodifying = (rawmode & modifyingmode))) { | |
194 | if ((ismodifying & O_WRONLY) == O_WRONLY || | |
195 | (ismodifying & O_RDWR) == O_RDWR || | |
196 | (ismodifying & (O_CREAT|appendtrunc))) | |
197 | TAINT_PROPER("sysopen"); | |
198 | } | |
3b6c1aba | 199 | mode[ix++] = IoTYPE_NUMERIC; /* Marker to openn to use numeric "sysopen" */ |
b931b1d9 | 200 | |
09458382 | 201 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
b94c04ac | 202 | rawmode |= O_LARGEFILE; /* Transparently largefiley. */ |
5ff3f7a4 GS |
203 | #endif |
204 | ||
06c7082d | 205 | IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing); |
ee518936 | 206 | |
59cd0e26 | 207 | namesv = newSVpvn_flags(oname, len, SVs_TEMP); |
4b451737 | 208 | fp = PerlIO_openn(aTHX_ NULL, mode, -1, rawmode, rawperm, NULL, 1, &namesv); |
a687059c | 209 | } |
4b451737 NC |
210 | return openn_cleanup(gv, io, fp, mode, oname, saveifp, saveofp, savefd, |
211 | savetype, writing, 0, NULL); | |
212 | } | |
213 | ||
214 | bool | |
215 | Perl_do_open6(pTHX_ GV *gv, const char *oname, STRLEN len, | |
216 | PerlIO *supplied_fp, SV **svp, U32 num_svs) | |
217 | { | |
218 | dVAR; | |
219 | PerlIO *saveifp; | |
220 | PerlIO *saveofp; | |
221 | int savefd; | |
222 | char savetype; | |
223 | char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */ | |
224 | IO * const io = openn_setup(gv, mode, &saveifp, &saveofp, &savefd, &savetype); | |
225 | int writing = 0; | |
226 | PerlIO *fp; | |
227 | bool was_fdopen = FALSE; | |
228 | char *type = NULL; | |
229 | ||
230 | PERL_ARGS_ASSERT_DO_OPEN6; | |
231 | ||
232 | /* For ease of blame back to 5.000, keep the existing indenting. */ | |
233 | { | |
b931b1d9 | 234 | /* Regular (non-sys) open */ |
2fbb330f | 235 | char *name; |
faecd977 | 236 | STRLEN olen = len; |
b931b1d9 NIS |
237 | char *tend; |
238 | int dodup = 0; | |
c564b489 NC |
239 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
240 | ||
241 | /* Collect default raw/crlf info from the op */ | |
242 | if (PL_op && PL_op->op_type == OP_OPEN) { | |
243 | /* set up IO layers */ | |
244 | const U8 flags = PL_op->op_private; | |
245 | in_raw = (flags & OPpOPEN_IN_RAW); | |
246 | in_crlf = (flags & OPpOPEN_IN_CRLF); | |
247 | out_raw = (flags & OPpOPEN_OUT_RAW); | |
248 | out_crlf = (flags & OPpOPEN_OUT_CRLF); | |
249 | } | |
c07a80fd | 250 | |
2fbb330f | 251 | type = savepvn(oname, len); |
b931b1d9 | 252 | tend = type+len; |
faecd977 | 253 | SAVEFREEPV(type); |
eb649f83 AMS |
254 | |
255 | /* Lose leading and trailing white space */ | |
294b3b39 AL |
256 | while (isSPACE(*type)) |
257 | type++; | |
eb649f83 AMS |
258 | while (tend > type && isSPACE(tend[-1])) |
259 | *--tend = '\0'; | |
260 | ||
6170680b | 261 | if (num_svs) { |
41188aa0 TC |
262 | const char *p; |
263 | STRLEN nlen = 0; | |
c2be40b1 | 264 | /* New style explicit name, type is just mode and layer info */ |
9a869a14 | 265 | #ifdef USE_STDIO |
2fbb330f | 266 | if (SvROK(*svp) && !strchr(oname,'&')) { |
9a869a14 RGS |
267 | if (ckWARN(WARN_IO)) |
268 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
269 | "Can't open a reference"); | |
93189314 | 270 | SETERRNO(EINVAL, LIB_INVARG); |
a6fc70e5 | 271 | fp = NULL; |
9a869a14 RGS |
272 | goto say_false; |
273 | } | |
274 | #endif /* USE_STDIO */ | |
41188aa0 TC |
275 | p = (SvOK(*svp) || SvGMAGICAL(*svp)) ? SvPV(*svp, nlen) : NULL; |
276 | ||
a6fc70e5 NC |
277 | if (p && !IS_SAFE_PATHNAME(p, nlen, "open")) { |
278 | fp = NULL; | |
c8028aa6 | 279 | goto say_false; |
a6fc70e5 | 280 | } |
c8028aa6 | 281 | |
41188aa0 TC |
282 | name = p ? savepvn(p, nlen) : savepvs(""); |
283 | ||
faecd977 | 284 | SAVEFREEPV(name); |
6170680b | 285 | } |
faecd977 | 286 | else { |
faecd977 | 287 | name = type; |
b931b1d9 | 288 | len = tend-type; |
faecd977 | 289 | } |
6170680b | 290 | IoTYPE(io) = *type; |
516a5887 | 291 | if ((*type == IoTYPE_RDWR) && /* scary */ |
01a8ea99 | 292 | (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) && |
516a5887 | 293 | ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) { |
c2be40b1 | 294 | TAINT_PROPER("open"); |
6170680b | 295 | mode[1] = *type++; |
c07a80fd | 296 | writing = 1; |
a687059c | 297 | } |
c07a80fd | 298 | |
9f37169a | 299 | if (*type == IoTYPE_PIPE) { |
b931b1d9 NIS |
300 | if (num_svs) { |
301 | if (type[1] != IoTYPE_STD) { | |
c2be40b1 | 302 | unknown_open_mode: |
b931b1d9 NIS |
303 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); |
304 | } | |
305 | type++; | |
6170680b | 306 | } |
294b3b39 AL |
307 | do { |
308 | type++; | |
309 | } while (isSPACE(*type)); | |
faecd977 | 310 | if (!num_svs) { |
6170680b | 311 | name = type; |
b931b1d9 | 312 | len = tend-type; |
faecd977 | 313 | } |
4a7d1889 NIS |
314 | if (*name == '\0') { |
315 | /* command is missing 19990114 */ | |
06eaf0bc | 316 | if (ckWARN(WARN_PIPE)) |
9014280d | 317 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc | 318 | errno = EPIPE; |
a6fc70e5 | 319 | fp = NULL; |
06eaf0bc GS |
320 | goto say_false; |
321 | } | |
f27977c3 | 322 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
c07a80fd | 323 | TAINT_ENV(); |
324 | TAINT_PROPER("piped open"); | |
b931b1d9 | 325 | if (!num_svs && name[len-1] == '|') { |
faecd977 | 326 | name[--len] = '\0' ; |
599cee73 | 327 | if (ckWARN(WARN_PIPE)) |
9014280d | 328 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe"); |
7b8d334a | 329 | } |
a1d180c4 | 330 | mode[0] = 'w'; |
c07a80fd | 331 | writing = 1; |
0c19750d | 332 | if (out_raw) |
5686ee58 | 333 | mode[1] = 'b'; |
0c19750d | 334 | else if (out_crlf) |
5686ee58 | 335 | mode[1] = 't'; |
4a7d1889 NIS |
336 | if (num_svs > 1) { |
337 | fp = PerlProc_popen_list(mode, num_svs, svp); | |
338 | } | |
339 | else { | |
340 | fp = PerlProc_popen(name,mode); | |
341 | } | |
1771866f NIS |
342 | if (num_svs) { |
343 | if (*type) { | |
344 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
a6fc70e5 | 345 | fp = NULL; |
1771866f NIS |
346 | goto say_false; |
347 | } | |
348 | } | |
349 | } | |
c2be40b1 | 350 | } /* IoTYPE_PIPE */ |
9f37169a | 351 | else if (*type == IoTYPE_WRONLY) { |
c07a80fd | 352 | TAINT_PROPER("open"); |
6170680b | 353 | type++; |
9f37169a JH |
354 | if (*type == IoTYPE_WRONLY) { |
355 | /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ | |
50952442 | 356 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b | 357 | type++; |
a0d0e21e | 358 | } |
ee518936 | 359 | else { |
c07a80fd | 360 | mode[0] = 'w'; |
ee518936 | 361 | } |
c07a80fd | 362 | writing = 1; |
363 | ||
0c19750d | 364 | if (out_raw) |
5686ee58 | 365 | mode[1] = 'b'; |
0c19750d | 366 | else if (out_crlf) |
5686ee58 | 367 | mode[1] = 't'; |
6170680b | 368 | if (*type == '&') { |
c07a80fd | 369 | duplicity: |
ecdeb87c | 370 | dodup = PERLIO_DUP_FD; |
e620cd72 NIS |
371 | type++; |
372 | if (*type == '=') { | |
c07a80fd | 373 | dodup = 0; |
e620cd72 | 374 | type++; |
4a7d1889 | 375 | } |
ee518936 | 376 | if (!num_svs && !*type && supplied_fp) { |
4a7d1889 | 377 | /* "<+&" etc. is used by typemaps */ |
c07a80fd | 378 | fp = supplied_fp; |
ee518936 | 379 | } |
a0d0e21e | 380 | else { |
35da51f7 | 381 | PerlIO *that_fp = NULL; |
b4464d55 | 382 | int wanted_fd; |
e620cd72 | 383 | if (num_svs > 1) { |
fe13d51d | 384 | /* diag_listed_as: More than one argument to '%s' open */ |
e620cd72 NIS |
385 | Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); |
386 | } | |
294b3b39 AL |
387 | while (isSPACE(*type)) |
388 | type++; | |
f90b7232 FC |
389 | if (num_svs && ( |
390 | SvIOK(*svp) | |
391 | || (SvPOKp(*svp) && looks_like_number(*svp)) | |
392 | )) { | |
b4464d55 | 393 | wanted_fd = SvUV(*svp); |
24a7a40d | 394 | num_svs = 0; |
ee518936 | 395 | } |
e620cd72 | 396 | else if (isDIGIT(*type)) { |
b4464d55 | 397 | wanted_fd = atoi(type); |
e620cd72 | 398 | } |
c07a80fd | 399 | else { |
e1ec3a88 | 400 | const IO* thatio; |
e620cd72 NIS |
401 | if (num_svs) { |
402 | thatio = sv_2io(*svp); | |
403 | } | |
404 | else { | |
35da51f7 | 405 | GV * const thatgv = gv_fetchpvn_flags(type, tend - type, |
90e5519e | 406 | 0, SVt_PVIO); |
e620cd72 NIS |
407 | thatio = GvIO(thatgv); |
408 | } | |
c07a80fd | 409 | if (!thatio) { |
6e21c824 | 410 | #ifdef EINVAL |
93189314 | 411 | SETERRNO(EINVAL,SS_IVCHAN); |
6e21c824 | 412 | #endif |
a6fc70e5 | 413 | fp = NULL; |
c07a80fd | 414 | goto say_false; |
415 | } | |
f4e789af | 416 | if ((that_fp = IoIFP(thatio))) { |
7211d486 JH |
417 | /* Flush stdio buffer before dup. --mjd |
418 | * Unfortunately SEEK_CURing 0 seems to | |
419 | * be optimized away on most platforms; | |
420 | * only Solaris and Linux seem to flush | |
421 | * on that. --jhi */ | |
7211d486 JH |
422 | /* On the other hand, do all platforms |
423 | * take gracefully to flushing a read-only | |
424 | * filehandle? Perhaps we should do | |
425 | * fsetpos(src)+fgetpos(dst)? --nik */ | |
ecdeb87c | 426 | PerlIO_flush(that_fp); |
b4464d55 | 427 | wanted_fd = PerlIO_fileno(that_fp); |
0759c907 JH |
428 | /* When dup()ing STDIN, STDOUT or STDERR |
429 | * explicitly set appropriate access mode */ | |
f4e789af NC |
430 | if (that_fp == PerlIO_stdout() |
431 | || that_fp == PerlIO_stderr()) | |
0759c907 | 432 | IoTYPE(io) = IoTYPE_WRONLY; |
f4e789af | 433 | else if (that_fp == PerlIO_stdin()) |
0759c907 JH |
434 | IoTYPE(io) = IoTYPE_RDONLY; |
435 | /* When dup()ing a socket, say result is | |
436 | * one as well */ | |
437 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) | |
50952442 | 438 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd | 439 | } |
440 | else | |
b4464d55 | 441 | wanted_fd = -1; |
a0d0e21e | 442 | } |
ee518936 | 443 | if (!num_svs) |
bd61b366 | 444 | type = NULL; |
ecdeb87c NIS |
445 | if (that_fp) { |
446 | fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup); | |
447 | } | |
448 | else { | |
c07a80fd | 449 | if (dodup) |
b4464d55 | 450 | wanted_fd = PerlLIO_dup(wanted_fd); |
ecdeb87c NIS |
451 | else |
452 | was_fdopen = TRUE; | |
b4464d55 NC |
453 | if (!(fp = PerlIO_openn(aTHX_ type,mode,wanted_fd,0,0,NULL,num_svs,svp))) { |
454 | if (dodup && wanted_fd >= 0) | |
455 | PerlLIO_close(wanted_fd); | |
ecdeb87c | 456 | } |
faecd977 | 457 | } |
c07a80fd | 458 | } |
ee518936 | 459 | } /* & */ |
c07a80fd | 460 | else { |
294b3b39 AL |
461 | while (isSPACE(*type)) |
462 | type++; | |
b931b1d9 | 463 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
b931b1d9 | 464 | type++; |
760ac839 | 465 | fp = PerlIO_stdout(); |
50952442 | 466 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb | 467 | if (num_svs > 1) { |
fe13d51d | 468 | /* diag_listed_as: More than one argument to '%s' open */ |
7cf31beb NIS |
469 | Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD); |
470 | } | |
c07a80fd | 471 | } |
472 | else { | |
9229bf8d NC |
473 | if (num_svs) { |
474 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
475 | } | |
476 | else { | |
477 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 478 | type = NULL; |
9229bf8d | 479 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 480 | } |
c07a80fd | 481 | } |
ee518936 | 482 | } /* !& */ |
7e72d509 JH |
483 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
484 | goto unknown_open_mode; | |
c2be40b1 | 485 | } /* IoTYPE_WRONLY */ |
9f37169a | 486 | else if (*type == IoTYPE_RDONLY) { |
294b3b39 AL |
487 | do { |
488 | type++; | |
489 | } while (isSPACE(*type)); | |
bf38876a | 490 | mode[0] = 'r'; |
0c19750d | 491 | if (in_raw) |
5686ee58 | 492 | mode[1] = 'b'; |
0c19750d | 493 | else if (in_crlf) |
5686ee58 | 494 | mode[1] = 't'; |
6170680b | 495 | if (*type == '&') { |
bf38876a | 496 | goto duplicity; |
6170680b | 497 | } |
b931b1d9 | 498 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
b931b1d9 | 499 | type++; |
760ac839 | 500 | fp = PerlIO_stdin(); |
50952442 | 501 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb | 502 | if (num_svs > 1) { |
fe13d51d | 503 | /* diag_listed_as: More than one argument to '%s' open */ |
7cf31beb NIS |
504 | Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD); |
505 | } | |
a687059c | 506 | } |
ee518936 | 507 | else { |
9229bf8d NC |
508 | if (num_svs) { |
509 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
510 | } | |
511 | else { | |
512 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 513 | type = NULL; |
9229bf8d | 514 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 515 | } |
ee518936 | 516 | } |
7e72d509 JH |
517 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
518 | goto unknown_open_mode; | |
c2be40b1 JH |
519 | } /* IoTYPE_RDONLY */ |
520 | else if ((num_svs && /* '-|...' or '...|' */ | |
521 | type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || | |
b931b1d9 | 522 | (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { |
6170680b | 523 | if (num_svs) { |
b931b1d9 | 524 | type += 2; /* skip over '-|' */ |
6170680b IZ |
525 | } |
526 | else { | |
b931b1d9 NIS |
527 | *--tend = '\0'; |
528 | while (tend > type && isSPACE(tend[-1])) | |
529 | *--tend = '\0'; | |
a6e20a40 AL |
530 | for (; isSPACE(*type); type++) |
531 | ; | |
6170680b | 532 | name = type; |
b931b1d9 | 533 | len = tend-type; |
6170680b | 534 | } |
4a7d1889 NIS |
535 | if (*name == '\0') { |
536 | /* command is missing 19990114 */ | |
06eaf0bc | 537 | if (ckWARN(WARN_PIPE)) |
9014280d | 538 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc | 539 | errno = EPIPE; |
a6fc70e5 | 540 | fp = NULL; |
06eaf0bc GS |
541 | goto say_false; |
542 | } | |
770526c1 | 543 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
79072805 LW |
544 | TAINT_ENV(); |
545 | TAINT_PROPER("piped open"); | |
a1d180c4 | 546 | mode[0] = 'r'; |
0c19750d | 547 | |
0c19750d | 548 | if (in_raw) |
5686ee58 | 549 | mode[1] = 'b'; |
0c19750d | 550 | else if (in_crlf) |
5686ee58 | 551 | mode[1] = 't'; |
0c19750d | 552 | |
4a7d1889 NIS |
553 | if (num_svs > 1) { |
554 | fp = PerlProc_popen_list(mode,num_svs,svp); | |
555 | } | |
e620cd72 | 556 | else { |
4a7d1889 NIS |
557 | fp = PerlProc_popen(name,mode); |
558 | } | |
50952442 | 559 | IoTYPE(io) = IoTYPE_PIPE; |
1771866f | 560 | if (num_svs) { |
294b3b39 AL |
561 | while (isSPACE(*type)) |
562 | type++; | |
1771866f NIS |
563 | if (*type) { |
564 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
a6fc70e5 | 565 | fp = NULL; |
1771866f NIS |
566 | goto say_false; |
567 | } | |
568 | } | |
569 | } | |
a687059c | 570 | } |
c2be40b1 | 571 | else { /* layer(Args) */ |
6170680b | 572 | if (num_svs) |
c2be40b1 | 573 | goto unknown_open_mode; |
6170680b | 574 | name = type; |
50952442 | 575 | IoTYPE(io) = IoTYPE_RDONLY; |
a6e20a40 AL |
576 | for (; isSPACE(*name); name++) |
577 | ; | |
88b61e10 | 578 | mode[0] = 'r'; |
0c19750d | 579 | |
0c19750d | 580 | if (in_raw) |
5686ee58 | 581 | mode[1] = 'b'; |
0c19750d | 582 | else if (in_crlf) |
5686ee58 | 583 | mode[1] = 't'; |
0c19750d | 584 | |
770526c1 | 585 | if (*name == '-' && name[1] == '\0') { |
760ac839 | 586 | fp = PerlIO_stdin(); |
50952442 | 587 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 588 | } |
16fe6d59 | 589 | else { |
9229bf8d NC |
590 | if (num_svs) { |
591 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
592 | } | |
593 | else { | |
594 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 595 | type = NULL; |
9229bf8d | 596 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 597 | } |
16fe6d59 | 598 | } |
a687059c LW |
599 | } |
600 | } | |
a6fc70e5 NC |
601 | |
602 | say_false: | |
603 | return openn_cleanup(gv, io, fp, mode, oname, saveifp, saveofp, savefd, | |
604 | savetype, writing, was_fdopen, type); | |
605 | } | |
606 | ||
607 | /* Yes, this is ugly, but it's private, and I don't see a cleaner way to | |
608 | simplify the two-headed public interface of do_openn. */ | |
609 | static bool | |
610 | S_openn_cleanup(pTHX_ GV *gv, IO *io, PerlIO *fp, char *mode, const char *oname, | |
611 | PerlIO *saveifp, PerlIO *saveofp, int savefd, char savetype, | |
612 | int writing, bool was_fdopen, const char *type) | |
613 | { | |
614 | int fd; | |
615 | ||
616 | PERL_ARGS_ASSERT_OPENN_CLEANUP; | |
617 | ||
bee1dbe2 | 618 | if (!fp) { |
ce44635a | 619 | if (IoTYPE(io) == IoTYPE_RDONLY && ckWARN(WARN_NEWLINE) |
2fbb330f | 620 | && strchr(oname, '\n') |
ce44635a | 621 | |
041457d9 | 622 | ) |
5d37acd6 DM |
623 | { |
624 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ | |
9014280d | 625 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); |
5d37acd6 DM |
626 | GCC_DIAG_RESTORE; |
627 | } | |
6e21c824 | 628 | goto say_false; |
bee1dbe2 | 629 | } |
a00b5bd3 NIS |
630 | |
631 | if (ckWARN(WARN_IO)) { | |
632 | if ((IoTYPE(io) == IoTYPE_RDONLY) && | |
633 | (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { | |
9014280d | 634 | Perl_warner(aTHX_ packWARN(WARN_IO), |
d0c0e7dd FC |
635 | "Filehandle STD%s reopened as %"HEKf |
636 | " only for input", | |
97828cef | 637 | ((fp == PerlIO_stdout()) ? "OUT" : "ERR"), |
d0c0e7dd | 638 | HEKfARG(GvENAME_HEK(gv))); |
a00b5bd3 | 639 | } |
ee518936 | 640 | else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { |
9014280d | 641 | Perl_warner(aTHX_ packWARN(WARN_IO), |
d0c0e7dd FC |
642 | "Filehandle STDIN reopened as %"HEKf" only for output", |
643 | HEKfARG(GvENAME_HEK(gv)) | |
644 | ); | |
a00b5bd3 NIS |
645 | } |
646 | } | |
647 | ||
e99cca91 | 648 | fd = PerlIO_fileno(fp); |
e934609f JH |
649 | /* If there is no fd (e.g. PerlIO::scalar) assume it isn't a |
650 | * socket - this covers PerlIO::scalar - otherwise unless we "know" the | |
e99cca91 NIS |
651 | * type probe for socket-ness. |
652 | */ | |
653 | if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) { | |
654 | if (PerlLIO_fstat(fd,&PL_statbuf) < 0) { | |
655 | /* If PerlIO claims to have fd we had better be able to fstat() it. */ | |
656 | (void) PerlIO_close(fp); | |
6e21c824 | 657 | goto say_false; |
a687059c | 658 | } |
7114a2d2 | 659 | #ifndef PERL_MICRO |
3280af22 | 660 | if (S_ISSOCK(PL_statbuf.st_mode)) |
50952442 | 661 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 LW |
662 | #ifdef HAS_SOCKET |
663 | else if ( | |
3280af22 | 664 | !(PL_statbuf.st_mode & S_IFMT) |
0759c907 JH |
665 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
666 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ | |
667 | ) { /* on OS's that return 0 on fstat()ed pipe */ | |
e99cca91 NIS |
668 | char tmpbuf[256]; |
669 | Sock_size_t buflen = sizeof tmpbuf; | |
670 | if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0 | |
671 | || errno != ENOTSOCK) | |
672 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ | |
673 | /* but some return 0 for streams too, sigh */ | |
99b89507 | 674 | } |
e99cca91 | 675 | #endif /* HAS_SOCKET */ |
7114a2d2 | 676 | #endif /* !PERL_MICRO */ |
a687059c | 677 | } |
e99cca91 NIS |
678 | |
679 | /* Eeek - FIXME !!! | |
680 | * If this is a standard handle we discard all the layer stuff | |
681 | * and just dup the fd into whatever was on the handle before ! | |
682 | */ | |
683 | ||
6e21c824 | 684 | if (saveifp) { /* must use old fp? */ |
f5b9d040 | 685 | /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR |
24c23ab4 | 686 | then dup the new fileno down |
f5b9d040 | 687 | */ |
6e21c824 | 688 | if (saveofp) { |
f5b9d040 | 689 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 690 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 691 | PerlIO_close(saveofp); |
6e21c824 LW |
692 | } |
693 | } | |
6e60e805 | 694 | if (savefd != fd) { |
e934609f | 695 | /* Still a small can-of-worms here if (say) PerlIO::scalar |
ecdeb87c NIS |
696 | is assigned to (say) STDOUT - for now let dup2() fail |
697 | and provide the error | |
698 | */ | |
bd4a5668 NIS |
699 | if (PerlLIO_dup2(fd, savefd) < 0) { |
700 | (void)PerlIO_close(fp); | |
701 | goto say_false; | |
702 | } | |
d082dcd6 | 703 | #ifdef VMS |
6e60e805 | 704 | if (savefd != PerlIO_fileno(PerlIO_stdin())) { |
d0e2cf63 AMS |
705 | char newname[FILENAME_MAX+1]; |
706 | if (PerlIO_getname(fp, newname)) { | |
707 | if (fd == PerlIO_fileno(PerlIO_stdout())) | |
0db50132 | 708 | vmssetuserlnm("SYS$OUTPUT", newname); |
d0e2cf63 | 709 | if (fd == PerlIO_fileno(PerlIO_stderr())) |
0db50132 | 710 | vmssetuserlnm("SYS$ERROR", newname); |
d0e2cf63 | 711 | } |
d082dcd6 JH |
712 | } |
713 | #endif | |
d0e2cf63 AMS |
714 | |
715 | #if !defined(WIN32) | |
716 | /* PL_fdpid isn't used on Windows, so avoid this useless work. | |
717 | * XXX Probably the same for a lot of other places. */ | |
718 | { | |
719 | Pid_t pid; | |
720 | SV *sv; | |
721 | ||
d0e2cf63 | 722 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
862a34c6 | 723 | SvUPGRADE(sv, SVt_IV); |
d0e2cf63 | 724 | pid = SvIVX(sv); |
45977657 | 725 | SvIV_set(sv, 0); |
d0e2cf63 | 726 | sv = *av_fetch(PL_fdpid,savefd,TRUE); |
862a34c6 | 727 | SvUPGRADE(sv, SVt_IV); |
45977657 | 728 | SvIV_set(sv, pid); |
d0e2cf63 AMS |
729 | } |
730 | #endif | |
731 | ||
e212fc47 AMS |
732 | if (was_fdopen) { |
733 | /* need to close fp without closing underlying fd */ | |
734 | int ofd = PerlIO_fileno(fp); | |
735 | int dupfd = PerlLIO_dup(ofd); | |
03e631df JH |
736 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
737 | /* Assume if we have F_SETFD we have F_GETFD */ | |
738 | int coe = fcntl(ofd,F_GETFD); | |
739 | #endif | |
e212fc47 AMS |
740 | PerlIO_close(fp); |
741 | PerlLIO_dup2(dupfd,ofd); | |
03e631df JH |
742 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
743 | /* The dup trick has lost close-on-exec on ofd */ | |
744 | fcntl(ofd,F_SETFD, coe); | |
745 | #endif | |
e212fc47 | 746 | PerlLIO_close(dupfd); |
ecdeb87c | 747 | } |
e212fc47 AMS |
748 | else |
749 | PerlIO_close(fp); | |
6e21c824 LW |
750 | } |
751 | fp = saveifp; | |
760ac839 | 752 | PerlIO_clearerr(fp); |
e99cca91 | 753 | fd = PerlIO_fileno(fp); |
6e21c824 | 754 | } |
a0d0e21e | 755 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
e99cca91 | 756 | if (fd >= 0) { |
4ee39169 | 757 | dSAVE_ERRNO; |
a8710ca1 | 758 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ |
4ee39169 | 759 | RESTORE_ERRNO; |
a8710ca1 | 760 | } |
1462b684 | 761 | #endif |
8990e307 | 762 | IoIFP(io) = fp; |
b931b1d9 | 763 | |
684bef36 | 764 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a | 765 | if (writing) { |
50952442 | 766 | if (IoTYPE(io) == IoTYPE_SOCKET |
e99cca91 | 767 | || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) { |
a33cf58c | 768 | char *s = mode; |
3b6c1aba JH |
769 | if (*s == IoTYPE_IMPLICIT || *s == IoTYPE_NUMERIC) |
770 | s++; | |
a33cf58c | 771 | *s = 'w'; |
7c491510 | 772 | if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,NULL))) { |
760ac839 | 773 | PerlIO_close(fp); |
4608196e | 774 | IoIFP(io) = NULL; |
6e21c824 | 775 | goto say_false; |
fe14fcc3 | 776 | } |
1462b684 LW |
777 | } |
778 | else | |
8990e307 | 779 | IoOFP(io) = fp; |
bf38876a | 780 | } |
a687059c | 781 | return TRUE; |
6e21c824 LW |
782 | |
783 | say_false: | |
8990e307 LW |
784 | IoIFP(io) = saveifp; |
785 | IoOFP(io) = saveofp; | |
786 | IoTYPE(io) = savetype; | |
6e21c824 | 787 | return FALSE; |
a687059c LW |
788 | } |
789 | ||
760ac839 | 790 | PerlIO * |
5aaab254 | 791 | Perl_nextargv(pTHX_ GV *gv) |
a687059c | 792 | { |
97aff369 | 793 | dVAR; |
2d03de9c | 794 | IO * const io = GvIOp(gv); |
fe14fcc3 | 795 | |
7918f24d NC |
796 | PERL_ARGS_ASSERT_NEXTARGV; |
797 | ||
3280af22 | 798 | if (!PL_argvoutgv) |
fafc274c | 799 | PL_argvoutgv = gv_fetchpvs("ARGVOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
18708f5a GS |
800 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
801 | IoFLAGS(io) &= ~IOf_START; | |
7a1c5554 | 802 | if (PL_inplace) { |
294b3b39 | 803 | assert(PL_defoutgv); |
29a861e7 NC |
804 | Perl_av_create_and_push(aTHX_ &PL_argvout_stack, |
805 | SvREFCNT_inc_simple_NN(PL_defoutgv)); | |
7a1c5554 | 806 | } |
18708f5a | 807 | } |
3280af22 NIS |
808 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
809 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ | |
fe14fcc3 | 810 | #ifdef HAS_FCHMOD |
c797f2d8 DM |
811 | if (PL_lastfd != -1) |
812 | (void)fchmod(PL_lastfd,PL_filemode); | |
fe14fcc3 | 813 | #else |
b28d0864 | 814 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 LW |
815 | #endif |
816 | } | |
c797f2d8 | 817 | PL_lastfd = -1; |
3280af22 | 818 | PL_filemode = 0; |
5c501b37 | 819 | if (!GvAV(gv)) |
4608196e | 820 | return NULL; |
b9f2b683 | 821 | while (av_tindex(GvAV(gv)) >= 0) { |
85aff577 | 822 | STRLEN oldlen; |
1fa0529f | 823 | SV *const sv = av_shift(GvAV(gv)); |
8990e307 | 824 | SAVEFREESV(sv); |
4bac9ae4 | 825 | SvTAINTED_off(GvSVn(gv)); /* previous tainting irrelevant */ |
e203899d | 826 | sv_setsv(GvSVn(gv),sv); |
79072805 | 827 | SvSETMAGIC(GvSV(gv)); |
3280af22 | 828 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
d8015975 NC |
829 | if (LIKELY(!PL_inplace)) { |
830 | if (do_open6(gv, PL_oldname, oldlen, NULL, NULL, 0)) { | |
831 | return IoIFP(GvIOp(gv)); | |
832 | } | |
833 | } | |
834 | else { | |
835 | /* This very long block ends with return IoIFP(GvIOp(gv)); | |
836 | Both this block and the block above fall through on open | |
837 | failure to the warning code, and then the while loop above tries | |
838 | the next entry. */ | |
839 | if (do_open_raw(gv, PL_oldname, oldlen, O_RDONLY, 0)) { | |
1fa0529f NC |
840 | #ifndef FLEXFILENAMES |
841 | int filedev; | |
842 | int fileino; | |
843 | #endif | |
844 | Uid_t fileuid; | |
845 | Gid_t filegid; | |
846 | ||
79072805 | 847 | TAINT_PROPER("inplace open"); |
3280af22 | 848 | if (oldlen == 1 && *PL_oldname == '-') { |
fafc274c NC |
849 | setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, |
850 | SVt_PVIO)); | |
a0d0e21e | 851 | return IoIFP(GvIOp(gv)); |
c623bd54 | 852 | } |
99b89507 | 853 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
854 | filedev = PL_statbuf.st_dev; |
855 | fileino = PL_statbuf.st_ino; | |
99b89507 | 856 | #endif |
3280af22 NIS |
857 | PL_filemode = PL_statbuf.st_mode; |
858 | fileuid = PL_statbuf.st_uid; | |
859 | filegid = PL_statbuf.st_gid; | |
860 | if (!S_ISREG(PL_filemode)) { | |
9b387841 NC |
861 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
862 | "Can't do inplace edit: %s is not a regular file", | |
863 | PL_oldname ); | |
79072805 | 864 | do_close(gv,FALSE); |
c623bd54 LW |
865 | continue; |
866 | } | |
c9930541 | 867 | if (*PL_inplace && strNE(PL_inplace, "*")) { |
2d03de9c | 868 | const char *star = strchr(PL_inplace, '*'); |
2d259d92 | 869 | if (star) { |
2d03de9c | 870 | const char *begin = PL_inplace; |
76f68e9b | 871 | sv_setpvs(sv, ""); |
2d259d92 CK |
872 | do { |
873 | sv_catpvn(sv, begin, star - begin); | |
3280af22 | 874 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 CK |
875 | begin = ++star; |
876 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
877 | if (*begin) |
878 | sv_catpv(sv,begin); | |
2d259d92 CK |
879 | } |
880 | else { | |
3280af22 | 881 | sv_catpv(sv,PL_inplace); |
2d259d92 | 882 | } |
c623bd54 | 883 | #ifndef FLEXFILENAMES |
95a20fc0 | 884 | if ((PerlLIO_stat(SvPVX_const(sv),&PL_statbuf) >= 0 |
5f74f29c JH |
885 | && PL_statbuf.st_dev == filedev |
886 | && PL_statbuf.st_ino == fileino) | |
39e571d4 | 887 | #ifdef DJGPP |
5f74f29c | 888 | || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0) |
39e571d4 | 889 | #endif |
f248d071 GS |
890 | ) |
891 | { | |
9b387841 NC |
892 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
893 | "Can't do inplace edit: %"SVf" would not be unique", | |
894 | SVfARG(sv)); | |
79072805 | 895 | do_close(gv,FALSE); |
c623bd54 LW |
896 | continue; |
897 | } | |
898 | #endif | |
fe14fcc3 | 899 | #ifdef HAS_RENAME |
739a0b84 | 900 | #if !defined(DOSISH) && !defined(__CYGWIN__) |
95a20fc0 | 901 | if (PerlLIO_rename(PL_oldname,SvPVX_const(sv)) < 0) { |
9b387841 NC |
902 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
903 | "Can't rename %s to %"SVf": %s, skipping file", | |
904 | PL_oldname, SVfARG(sv), Strerror(errno)); | |
79072805 | 905 | do_close(gv,FALSE); |
c623bd54 LW |
906 | continue; |
907 | } | |
a687059c | 908 | #else |
79072805 | 909 | do_close(gv,FALSE); |
95a20fc0 SP |
910 | (void)PerlLIO_unlink(SvPVX_const(sv)); |
911 | (void)PerlLIO_rename(PL_oldname,SvPVX_const(sv)); | |
d5eb9a46 | 912 | do_open_raw(gv, SvPVX_const(sv), SvCUR(sv), O_RDONLY, 0); |
55497cff | 913 | #endif /* DOSISH */ |
ff8e2863 | 914 | #else |
95a20fc0 SP |
915 | (void)UNLINK(SvPVX_const(sv)); |
916 | if (link(PL_oldname,SvPVX_const(sv)) < 0) { | |
9b387841 NC |
917 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
918 | "Can't rename %s to %"SVf": %s, skipping file", | |
919 | PL_oldname, SVfARG(sv), Strerror(errno) ); | |
79072805 | 920 | do_close(gv,FALSE); |
c623bd54 LW |
921 | continue; |
922 | } | |
b28d0864 | 923 | (void)UNLINK(PL_oldname); |
a687059c LW |
924 | #endif |
925 | } | |
926 | else { | |
c030f24b | 927 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 928 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 | 929 | if (UNLINK(PL_oldname) < 0) { |
9b387841 NC |
930 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
931 | "Can't remove %s: %s, skipping file", | |
932 | PL_oldname, Strerror(errno) ); | |
79072805 | 933 | do_close(gv,FALSE); |
fe14fcc3 LW |
934 | continue; |
935 | } | |
edc7bc49 | 936 | # endif |
ff8e2863 | 937 | #else |
cea2e8a9 | 938 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 | 939 | #endif |
a687059c LW |
940 | } |
941 | ||
30fc4309 | 942 | sv_setpvn(sv,PL_oldname,oldlen); |
748a9306 | 943 | SETERRNO(0,0); /* in case sprintf set errno */ |
d5eb9a46 NC |
944 | if (!Perl_do_open_raw(aTHX_ PL_argvoutgv, SvPVX_const(sv), |
945 | SvCUR(sv), | |
4119ab01 | 946 | #ifdef VMS |
d5eb9a46 | 947 | O_WRONLY|O_CREAT|O_TRUNC, 0 |
4119ab01 | 948 | #else |
d5eb9a46 | 949 | O_WRONLY|O_CREAT|OPEN_EXCL, 0600 |
4119ab01 | 950 | #endif |
d5eb9a46 | 951 | )) { |
9b387841 NC |
952 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s", |
953 | PL_oldname, Strerror(errno) ); | |
79072805 | 954 | do_close(gv,FALSE); |
fe14fcc3 LW |
955 | continue; |
956 | } | |
3280af22 NIS |
957 | setdefout(PL_argvoutgv); |
958 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); | |
959 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); | |
fe14fcc3 | 960 | #ifdef HAS_FCHMOD |
3280af22 | 961 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c | 962 | #else |
b28d0864 | 963 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
a687059c | 964 | #endif |
3280af22 | 965 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
04783dc7 | 966 | int rc = 0; |
fe14fcc3 | 967 | #ifdef HAS_FCHOWN |
04783dc7 | 968 | rc = fchown(PL_lastfd,fileuid,filegid); |
a687059c | 969 | #else |
fe14fcc3 | 970 | #ifdef HAS_CHOWN |
04783dc7 | 971 | rc = PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c | 972 | #endif |
b1248f16 | 973 | #endif |
04783dc7 DM |
974 | /* XXX silently ignore failures */ |
975 | PERL_UNUSED_VAR(rc); | |
fe14fcc3 | 976 | } |
d8015975 | 977 | return IoIFP(GvIOp(gv)); |
a687059c | 978 | } |
d8015975 NC |
979 | } /* successful do_open_raw(), PL_inplace non-NULL */ |
980 | ||
981 | if (ckWARN_d(WARN_INPLACE)) { | |
982 | const int eno = errno; | |
983 | if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 | |
984 | && !S_ISREG(PL_statbuf.st_mode)) { | |
985 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), | |
986 | "Can't do inplace edit: %s is not a regular file", | |
987 | PL_oldname); | |
988 | } | |
989 | else { | |
990 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s", | |
991 | PL_oldname, Strerror(eno)); | |
992 | } | |
4d61ec05 | 993 | } |
a687059c | 994 | } |
18708f5a GS |
995 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
996 | IoFLAGS(io) |= IOf_START; | |
3280af22 NIS |
997 | if (PL_inplace) { |
998 | (void)do_close(PL_argvoutgv,FALSE); | |
7a1c5554 GS |
999 | if (io && (IoFLAGS(io) & IOf_ARGV) |
1000 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) | |
1001 | { | |
159b6efe | 1002 | GV * const oldout = MUTABLE_GV(av_pop(PL_argvout_stack)); |
18708f5a | 1003 | setdefout(oldout); |
8e217d4a | 1004 | SvREFCNT_dec_NN(oldout); |
4608196e | 1005 | return NULL; |
18708f5a | 1006 | } |
fafc274c | 1007 | setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO)); |
a687059c | 1008 | } |
4608196e | 1009 | return NULL; |
a687059c LW |
1010 | } |
1011 | ||
517844ec | 1012 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 1013 | bool |
864dbfa3 | 1014 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c | 1015 | { |
97aff369 | 1016 | dVAR; |
1193dd27 IZ |
1017 | bool retval; |
1018 | IO *io; | |
a687059c | 1019 | |
79072805 | 1020 | if (!gv) |
3280af22 | 1021 | gv = PL_argvgv; |
6e592b3a | 1022 | if (!gv || !isGV_with_GP(gv)) { |
1d2dff63 | 1023 | if (not_implicit) |
93189314 | 1024 | SETERRNO(EBADF,SS_IVCHAN); |
c2ab57d4 | 1025 | return FALSE; |
99b89507 | 1026 | } |
79072805 LW |
1027 | io = GvIO(gv); |
1028 | if (!io) { /* never opened */ | |
1d2dff63 | 1029 | if (not_implicit) { |
51087808 | 1030 | report_evil_fh(gv); |
93189314 | 1031 | SETERRNO(EBADF,SS_IVCHAN); |
1d2dff63 | 1032 | } |
a687059c LW |
1033 | return FALSE; |
1034 | } | |
f2b5be74 | 1035 | retval = io_close(io, not_implicit); |
517844ec | 1036 | if (not_implicit) { |
1193dd27 IZ |
1037 | IoLINES(io) = 0; |
1038 | IoPAGE(io) = 0; | |
1039 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
1040 | } | |
50952442 | 1041 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 IZ |
1042 | return retval; |
1043 | } | |
1044 | ||
1045 | bool | |
f2b5be74 | 1046 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 | 1047 | { |
97aff369 | 1048 | dVAR; |
1193dd27 | 1049 | bool retval = FALSE; |
1193dd27 | 1050 | |
7918f24d NC |
1051 | PERL_ARGS_ASSERT_IO_CLOSE; |
1052 | ||
8990e307 | 1053 | if (IoIFP(io)) { |
50952442 | 1054 | if (IoTYPE(io) == IoTYPE_PIPE) { |
4373e329 | 1055 | const int status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 | 1056 | if (not_implicit) { |
37038d91 | 1057 | STATUS_NATIVE_CHILD_SET(status); |
e5218da5 | 1058 | retval = (STATUS_UNIX == 0); |
f2b5be74 GS |
1059 | } |
1060 | else { | |
1061 | retval = (status != -1); | |
1062 | } | |
a687059c | 1063 | } |
50952442 | 1064 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c LW |
1065 | retval = TRUE; |
1066 | else { | |
8990e307 | 1067 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
0bcc34c2 | 1068 | const bool prev_err = PerlIO_error(IoOFP(io)); |
e199e3be | 1069 | retval = (PerlIO_close(IoOFP(io)) != EOF && !prev_err); |
760ac839 | 1070 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 | 1071 | } |
e199e3be | 1072 | else { |
0bcc34c2 | 1073 | const bool prev_err = PerlIO_error(IoIFP(io)); |
e199e3be RGS |
1074 | retval = (PerlIO_close(IoIFP(io)) != EOF && !prev_err); |
1075 | } | |
a687059c | 1076 | } |
4608196e | 1077 | IoOFP(io) = IoIFP(io) = NULL; |
79072805 | 1078 | } |
f2b5be74 | 1079 | else if (not_implicit) { |
93189314 | 1080 | SETERRNO(EBADF,SS_IVCHAN); |
20408e3c | 1081 | } |
1193dd27 | 1082 | |
a687059c LW |
1083 | return retval; |
1084 | } | |
1085 | ||
1086 | bool | |
864dbfa3 | 1087 | Perl_do_eof(pTHX_ GV *gv) |
a687059c | 1088 | { |
97aff369 | 1089 | dVAR; |
eb578fdb | 1090 | IO * const io = GvIO(gv); |
a687059c | 1091 | |
7918f24d NC |
1092 | PERL_ARGS_ASSERT_DO_EOF; |
1093 | ||
79072805 | 1094 | if (!io) |
a687059c | 1095 | return TRUE; |
7716c5c5 | 1096 | else if (IoTYPE(io) == IoTYPE_WRONLY) |
a5390457 | 1097 | report_wrongway_fh(gv, '>'); |
a687059c | 1098 | |
8990e307 | 1099 | while (IoIFP(io)) { |
760ac839 | 1100 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 | 1101 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 LW |
1102 | return FALSE; /* this is the most usual case */ |
1103 | } | |
a687059c | 1104 | |
79852593 NC |
1105 | { |
1106 | /* getc and ungetc can stomp on errno */ | |
4ee39169 | 1107 | dSAVE_ERRNO; |
79852593 NC |
1108 | const int ch = PerlIO_getc(IoIFP(io)); |
1109 | if (ch != EOF) { | |
1110 | (void)PerlIO_ungetc(IoIFP(io),ch); | |
4ee39169 | 1111 | RESTORE_ERRNO; |
79852593 NC |
1112 | return FALSE; |
1113 | } | |
4ee39169 | 1114 | RESTORE_ERRNO; |
a687059c | 1115 | } |
fab3f3a7 | 1116 | |
760ac839 | 1117 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 JH |
1118 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
1119 | PerlIO_set_cnt(IoIFP(io),-1); | |
760ac839 | 1120 | } |
533c011a | 1121 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
ed2c6b9b | 1122 | if (gv != PL_argvgv || !nextargv(gv)) /* get another fp handy */ |
a687059c LW |
1123 | return TRUE; |
1124 | } | |
1125 | else | |
1126 | return TRUE; /* normal fp, definitely end of file */ | |
1127 | } | |
1128 | return TRUE; | |
1129 | } | |
1130 | ||
5ff3f7a4 | 1131 | Off_t |
864dbfa3 | 1132 | Perl_do_tell(pTHX_ GV *gv) |
a687059c | 1133 | { |
97aff369 | 1134 | dVAR; |
9c9f25b8 | 1135 | IO *const io = GvIO(gv); |
eb578fdb | 1136 | PerlIO *fp; |
a687059c | 1137 | |
7918f24d NC |
1138 | PERL_ARGS_ASSERT_DO_TELL; |
1139 | ||
9c9f25b8 | 1140 | if (io && (fp = IoIFP(io))) { |
8903cb82 | 1141 | return PerlIO_tell(fp); |
96e4d5b1 | 1142 | } |
51087808 | 1143 | report_evil_fh(gv); |
93189314 | 1144 | SETERRNO(EBADF,RMS_IFI); |
5ff3f7a4 | 1145 | return (Off_t)-1; |
a687059c LW |
1146 | } |
1147 | ||
1148 | bool | |
864dbfa3 | 1149 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c | 1150 | { |
97aff369 | 1151 | dVAR; |
9c9f25b8 | 1152 | IO *const io = GvIO(gv); |
eb578fdb | 1153 | PerlIO *fp; |
a687059c | 1154 | |
9c9f25b8 | 1155 | if (io && (fp = IoIFP(io))) { |
8903cb82 | 1156 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 1157 | } |
51087808 | 1158 | report_evil_fh(gv); |
93189314 | 1159 | SETERRNO(EBADF,RMS_IFI); |
a687059c LW |
1160 | return FALSE; |
1161 | } | |
1162 | ||
97cc44eb | 1163 | Off_t |
864dbfa3 | 1164 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 | 1165 | { |
97aff369 | 1166 | dVAR; |
9c9f25b8 | 1167 | IO *const io = GvIO(gv); |
eb578fdb | 1168 | PerlIO *fp; |
8903cb82 | 1169 | |
7918f24d NC |
1170 | PERL_ARGS_ASSERT_DO_SYSSEEK; |
1171 | ||
9c9f25b8 | 1172 | if (io && (fp = IoIFP(io))) |
3028581b | 1173 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
51087808 | 1174 | report_evil_fh(gv); |
93189314 | 1175 | SETERRNO(EBADF,RMS_IFI); |
d9b3e12d | 1176 | return (Off_t)-1; |
8903cb82 | 1177 | } |
1178 | ||
6ff81951 | 1179 | int |
a79b25b7 | 1180 | Perl_mode_from_discipline(pTHX_ const char *s, STRLEN len) |
16fe6d59 GS |
1181 | { |
1182 | int mode = O_BINARY; | |
a79b25b7 | 1183 | if (s) { |
16fe6d59 GS |
1184 | while (*s) { |
1185 | if (*s == ':') { | |
1186 | switch (s[1]) { | |
1187 | case 'r': | |
e963d6d2 | 1188 | if (s[2] == 'a' && s[3] == 'w' |
16fe6d59 GS |
1189 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) |
1190 | { | |
1191 | mode = O_BINARY; | |
1192 | s += 4; | |
1193 | len -= 4; | |
1194 | break; | |
1195 | } | |
1196 | /* FALL THROUGH */ | |
1197 | case 'c': | |
e963d6d2 | 1198 | if (s[2] == 'r' && s[3] == 'l' && s[4] == 'f' |
16fe6d59 GS |
1199 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) |
1200 | { | |
1201 | mode = O_TEXT; | |
1202 | s += 5; | |
1203 | len -= 5; | |
1204 | break; | |
1205 | } | |
1206 | /* FALL THROUGH */ | |
1207 | default: | |
1208 | goto fail_discipline; | |
1209 | } | |
1210 | } | |
1211 | else if (isSPACE(*s)) { | |
1212 | ++s; | |
1213 | --len; | |
1214 | } | |
1215 | else { | |
4373e329 | 1216 | const char *end; |
16fe6d59 GS |
1217 | fail_discipline: |
1218 | end = strchr(s+1, ':'); | |
1219 | if (!end) | |
1220 | end = s+len; | |
60382766 | 1221 | #ifndef PERLIO_LAYERS |
363c40c4 | 1222 | Perl_croak(aTHX_ "IO layers (like '%.*s') unavailable", end-s, s); |
60382766 | 1223 | #else |
18a33fb5 | 1224 | len -= end-s; |
60382766 NIS |
1225 | s = end; |
1226 | #endif | |
16fe6d59 GS |
1227 | } |
1228 | } | |
1229 | } | |
1230 | return mode; | |
1231 | } | |
1232 | ||
58e24eff | 1233 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) |
27da23d5 JH |
1234 | I32 |
1235 | my_chsize(int fd, Off_t length) | |
6eb13c3b | 1236 | { |
58e24eff SH |
1237 | #ifdef F_FREESP |
1238 | /* code courtesy of William Kucharski */ | |
1239 | #define HAS_CHSIZE | |
1240 | ||
c623ac67 | 1241 | Stat_t filebuf; |
6eb13c3b | 1242 | |
3028581b | 1243 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
1244 | return -1; |
1245 | ||
1246 | if (filebuf.st_size < length) { | |
1247 | ||
1248 | /* extend file length */ | |
1249 | ||
3028581b | 1250 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
1251 | return -1; |
1252 | ||
1253 | /* write a "0" byte */ | |
1254 | ||
3028581b | 1255 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
1256 | return -1; |
1257 | } | |
1258 | else { | |
1259 | /* truncate length */ | |
35da51f7 | 1260 | struct flock fl; |
6eb13c3b LW |
1261 | fl.l_whence = 0; |
1262 | fl.l_len = 0; | |
1263 | fl.l_start = length; | |
a0d0e21e | 1264 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
1265 | |
1266 | /* | |
a0d0e21e | 1267 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
1268 | * fcntl(2), which truncates the file so that it ends at the |
1269 | * position indicated by fl.l_start. | |
1270 | * | |
1271 | * Will minor miracles never cease? | |
1272 | */ | |
1273 | ||
a0d0e21e | 1274 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
1275 | return -1; |
1276 | ||
1277 | } | |
6eb13c3b | 1278 | return 0; |
58e24eff | 1279 | #else |
27da23d5 | 1280 | Perl_croak_nocontext("truncate not implemented"); |
a0d0e21e | 1281 | #endif /* F_FREESP */ |
27da23d5 | 1282 | return -1; |
58e24eff SH |
1283 | } |
1284 | #endif /* !HAS_TRUNCATE && !HAS_CHSIZE */ | |
ff8e2863 | 1285 | |
a687059c | 1286 | bool |
5aaab254 | 1287 | Perl_do_print(pTHX_ SV *sv, PerlIO *fp) |
a687059c | 1288 | { |
97aff369 | 1289 | dVAR; |
7918f24d NC |
1290 | |
1291 | PERL_ARGS_ASSERT_DO_PRINT; | |
1292 | ||
79072805 LW |
1293 | /* assuming fp is checked earlier */ |
1294 | if (!sv) | |
1295 | return TRUE; | |
e9950d3b NC |
1296 | if (SvTYPE(sv) == SVt_IV && SvIOK(sv)) { |
1297 | assert(!SvGMAGICAL(sv)); | |
1298 | if (SvIsUV(sv)) | |
1299 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); | |
1300 | else | |
1301 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); | |
1302 | return !PerlIO_error(fp); | |
1303 | } | |
1304 | else { | |
1305 | STRLEN len; | |
676f44e7 | 1306 | /* Do this first to trigger any overloading. */ |
e9950d3b NC |
1307 | const char *tmps = SvPV_const(sv, len); |
1308 | U8 *tmpbuf = NULL; | |
1309 | bool happy = TRUE; | |
1310 | ||
d791f93f KW |
1311 | if (PerlIO_isutf8(fp)) { /* If the stream is utf8 ... */ |
1312 | if (!SvUTF8(sv)) { /* Convert to utf8 if necessary */ | |
676f44e7 NC |
1313 | /* We don't modify the original scalar. */ |
1314 | tmpbuf = bytes_to_utf8((const U8*) tmps, &len); | |
1315 | tmps = (char *) tmpbuf; | |
1316 | } | |
a099aed4 | 1317 | else if (ckWARN4_d(WARN_UTF8, WARN_SURROGATE, WARN_NON_UNICODE, WARN_NONCHAR)) { |
0876b9a0 KW |
1318 | (void) check_utf8_print((const U8*) tmps, len); |
1319 | } | |
d791f93f KW |
1320 | } /* else stream isn't utf8 */ |
1321 | else if (DO_UTF8(sv)) { /* But if is utf8 internally, attempt to | |
1322 | convert to bytes */ | |
676f44e7 NC |
1323 | STRLEN tmplen = len; |
1324 | bool utf8 = TRUE; | |
35da51f7 | 1325 | U8 * const result = bytes_from_utf8((const U8*) tmps, &tmplen, &utf8); |
676f44e7 | 1326 | if (!utf8) { |
d791f93f KW |
1327 | |
1328 | /* Here, succeeded in downgrading from utf8. Set up to below | |
1329 | * output the converted value */ | |
676f44e7 NC |
1330 | tmpbuf = result; |
1331 | tmps = (char *) tmpbuf; | |
1332 | len = tmplen; | |
1333 | } | |
d791f93f KW |
1334 | else { /* Non-utf8 output stream, but string only representable in |
1335 | utf8 */ | |
676f44e7 | 1336 | assert((char *)result == tmps); |
9b387841 | 1337 | Perl_ck_warner_d(aTHX_ packWARN(WARN_UTF8), |
21630838 FC |
1338 | "Wide character in %s", |
1339 | PL_op ? OP_DESC(PL_op) : "print" | |
1340 | ); | |
0876b9a0 KW |
1341 | /* Could also check that isn't one of the things to avoid |
1342 | * in utf8 by using check_utf8_print(), but not doing so, | |
1343 | * since the stream isn't a UTF8 stream */ | |
ae798467 NIS |
1344 | } |
1345 | } | |
e9950d3b NC |
1346 | /* To detect whether the process is about to overstep its |
1347 | * filesize limit we would need getrlimit(). We could then | |
1348 | * also transparently raise the limit with setrlimit() -- | |
1349 | * but only until the system hard limit/the filesystem limit, | |
1350 | * at which we would get EPERM. Note that when using buffered | |
1351 | * io the write failure can be delayed until the flush/close. --jhi */ | |
1352 | if (len && (PerlIO_write(fp,tmps,len) == 0)) | |
1353 | happy = FALSE; | |
1354 | Safefree(tmpbuf); | |
1355 | return happy ? !PerlIO_error(fp) : FALSE; | |
ff8e2863 | 1356 | } |
a687059c LW |
1357 | } |
1358 | ||
79072805 | 1359 | I32 |
0d7d409d | 1360 | Perl_my_stat_flags(pTHX_ const U32 flags) |
a687059c | 1361 | { |
97aff369 | 1362 | dVAR; |
39644a26 | 1363 | dSP; |
79072805 | 1364 | IO *io; |
2dd78f96 | 1365 | GV* gv; |
79072805 | 1366 | |
533c011a | 1367 | if (PL_op->op_flags & OPf_REF) { |
2dd78f96 | 1368 | gv = cGVOP_gv; |
748a9306 | 1369 | do_fstat: |
5228a96c SP |
1370 | if (gv == PL_defgv) |
1371 | return PL_laststatval; | |
2dd78f96 | 1372 | io = GvIO(gv); |
ad02613c | 1373 | do_fstat_have_io: |
5228a96c | 1374 | PL_laststype = OP_STAT; |
bd5f6c01 | 1375 | PL_statgv = gv ? gv : (GV *)io; |
76f68e9b | 1376 | sv_setpvs(PL_statname, ""); |
5228a96c SP |
1377 | if(io) { |
1378 | if (IoIFP(io)) { | |
1379 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); | |
1380 | } else if (IoDIRP(io)) { | |
3497a01f | 1381 | return (PL_laststatval = PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache)); |
5228a96c | 1382 | } |
5228a96c | 1383 | } |
3888144c FC |
1384 | PL_laststatval = -1; |
1385 | report_evil_fh(gv); | |
1386 | return -1; | |
a687059c | 1387 | } |
d2c4d2d1 | 1388 | else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) |
8db8f6b6 FC |
1389 | == OPpFT_STACKED) |
1390 | return PL_laststatval; | |
d2c4d2d1 FC |
1391 | else { |
1392 | SV* const sv = TOPs; | |
4373e329 | 1393 | const char *s; |
4ecd490c | 1394 | STRLEN len; |
094a3eec | 1395 | if ((gv = MAYBE_DEREF_GV_flags(sv,flags))) { |
748a9306 LW |
1396 | goto do_fstat; |
1397 | } | |
ad02613c | 1398 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) { |
a45c7426 | 1399 | io = MUTABLE_IO(SvRV(sv)); |
7f39519f | 1400 | gv = NULL; |
ad02613c SP |
1401 | goto do_fstat_have_io; |
1402 | } | |
748a9306 | 1403 | |
0d7d409d | 1404 | s = SvPV_flags_const(sv, len, flags); |
a0714e2c | 1405 | PL_statgv = NULL; |
4ecd490c | 1406 | sv_setpvn(PL_statname, s, len); |
95a20fc0 | 1407 | s = SvPVX_const(PL_statname); /* s now NUL-terminated */ |
3280af22 NIS |
1408 | PL_laststype = OP_STAT; |
1409 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); | |
5d37acd6 DM |
1410 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) { |
1411 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ | |
9014280d | 1412 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); |
5d37acd6 DM |
1413 | GCC_DIAG_RESTORE; |
1414 | } | |
3280af22 | 1415 | return PL_laststatval; |
a687059c LW |
1416 | } |
1417 | } | |
1418 | ||
fbb0b3b3 | 1419 | |
79072805 | 1420 | I32 |
0d7d409d | 1421 | Perl_my_lstat_flags(pTHX_ const U32 flags) |
c623bd54 | 1422 | { |
97aff369 | 1423 | dVAR; |
a1894d81 | 1424 | static const char* const no_prev_lstat = "The stat preceding -l _ wasn't an lstat"; |
39644a26 | 1425 | dSP; |
b16276bb | 1426 | const char *file; |
cd22fad3 | 1427 | SV* const sv = TOPs; |
5840701a | 1428 | bool isio = FALSE; |
533c011a | 1429 | if (PL_op->op_flags & OPf_REF) { |
638eceb6 | 1430 | if (cGVOP_gv == PL_defgv) { |
3280af22 | 1431 | if (PL_laststype != OP_LSTAT) |
0157ef98 | 1432 | Perl_croak(aTHX_ "%s", no_prev_lstat); |
3280af22 | 1433 | return PL_laststatval; |
fe14fcc3 | 1434 | } |
31b139ba | 1435 | PL_laststatval = -1; |
5d3e98de | 1436 | if (ckWARN(WARN_IO)) { |
5840701a | 1437 | /* diag_listed_as: Use of -l on filehandle%s */ |
d0c0e7dd FC |
1438 | Perl_warner(aTHX_ packWARN(WARN_IO), |
1439 | "Use of -l on filehandle %"HEKf, | |
1440 | HEKfARG(GvENAME_HEK(cGVOP_gv))); | |
5d3e98de | 1441 | } |
31b139ba | 1442 | return -1; |
fe14fcc3 | 1443 | } |
8db8f6b6 FC |
1444 | if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) |
1445 | == OPpFT_STACKED) { | |
1f26655e | 1446 | if (PL_laststype != OP_LSTAT) |
0157ef98 | 1447 | Perl_croak(aTHX_ "%s", no_prev_lstat); |
1f26655e | 1448 | return PL_laststatval; |
cd22fad3 | 1449 | } |
c623bd54 | 1450 | |
3280af22 | 1451 | PL_laststype = OP_LSTAT; |
a0714e2c | 1452 | PL_statgv = NULL; |
5840701a FC |
1453 | if ( ( (SvROK(sv) && ( isGV_with_GP(SvRV(sv)) |
1454 | || (isio = SvTYPE(SvRV(sv)) == SVt_PVIO) ) | |
1455 | ) | |
1456 | || isGV_with_GP(sv) | |
1457 | ) | |
1458 | && ckWARN(WARN_IO)) { | |
1459 | if (isio) | |
1460 | /* diag_listed_as: Use of -l on filehandle%s */ | |
1461 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
1462 | "Use of -l on filehandle"); | |
1463 | else | |
1464 | /* diag_listed_as: Use of -l on filehandle%s */ | |
1465 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
1466 | "Use of -l on filehandle %"HEKf, | |
1467 | GvENAME_HEK((const GV *) | |
1468 | (SvROK(sv) ? SvRV(sv) : sv))); | |
cd22fad3 RS |
1469 | } |
1470 | file = SvPV_flags_const_nolen(sv, flags); | |
b16276bb VP |
1471 | sv_setpv(PL_statname,file); |
1472 | PL_laststatval = PerlLIO_lstat(file,&PL_statcache); | |
5d37acd6 DM |
1473 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(file, '\n')) { |
1474 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ | |
1475 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat"); | |
1476 | GCC_DIAG_RESTORE; | |
1477 | } | |
3280af22 | 1478 | return PL_laststatval; |
c623bd54 LW |
1479 | } |
1480 | ||
a0f2c8ec JD |
1481 | static void |
1482 | S_exec_failed(pTHX_ const char *cmd, int fd, int do_report) | |
1483 | { | |
1484 | const int e = errno; | |
7918f24d | 1485 | PERL_ARGS_ASSERT_EXEC_FAILED; |
a0f2c8ec JD |
1486 | if (ckWARN(WARN_EXEC)) |
1487 | Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", | |
1488 | cmd, Strerror(e)); | |
1489 | if (do_report) { | |
04783dc7 DM |
1490 | int rc = PerlLIO_write(fd, (void*)&e, sizeof(int)); |
1491 | /* silently ignore failures */ | |
1492 | PERL_UNUSED_VAR(rc); | |
a0f2c8ec JD |
1493 | PerlLIO_close(fd); |
1494 | } | |
1495 | } | |
1496 | ||
d5a9bfb0 | 1497 | bool |
5aaab254 | 1498 | Perl_do_aexec5(pTHX_ SV *really, SV **mark, SV **sp, |
2aa1486d | 1499 | int fd, int do_report) |
d5a9bfb0 | 1500 | { |
27da23d5 | 1501 | dVAR; |
7918f24d | 1502 | PERL_ARGS_ASSERT_DO_AEXEC5; |
e37778c2 | 1503 | #if defined(__SYMBIAN32__) || defined(__LIBCATAMOUNT__) |
cd39f2b6 JH |
1504 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); |
1505 | #else | |
79072805 | 1506 | if (sp > mark) { |
360ea906 | 1507 | const char **a; |
6136c704 | 1508 | const char *tmps = NULL; |
360ea906 | 1509 | Newx(PL_Argv, sp - mark + 1, const char*); |
c3c5fad7 | 1510 | a = PL_Argv; |
890ce7af | 1511 | |
79072805 LW |
1512 | while (++mark <= sp) { |
1513 | if (*mark) | |
360ea906 | 1514 | *a++ = SvPV_nolen_const(*mark); |
a687059c LW |
1515 | else |
1516 | *a++ = ""; | |
1517 | } | |
6136c704 | 1518 | *a = NULL; |
91b2752f | 1519 | if (really) |
e62f0680 | 1520 | tmps = SvPV_nolen_const(really); |
91b2752f RG |
1521 | if ((!really && *PL_Argv[0] != '/') || |
1522 | (really && *tmps != '/')) /* will execvp use PATH? */ | |
79072805 | 1523 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
b35112e7 | 1524 | PERL_FPU_PRE_EXEC |
91b2752f | 1525 | if (really && *tmps) |
b4748376 | 1526 | PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); |
a687059c | 1527 | else |
b4748376 | 1528 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
b35112e7 | 1529 | PERL_FPU_POST_EXEC |
a0f2c8ec | 1530 | S_exec_failed(aTHX_ (really ? tmps : PL_Argv[0]), fd, do_report); |
a687059c | 1531 | } |
bee1dbe2 | 1532 | do_execfree(); |
cd39f2b6 | 1533 | #endif |
a687059c LW |
1534 | return FALSE; |
1535 | } | |
1536 | ||
fe14fcc3 | 1537 | void |
864dbfa3 | 1538 | Perl_do_execfree(pTHX) |
ff8e2863 | 1539 | { |
97aff369 | 1540 | dVAR; |
43c5f42d | 1541 | Safefree(PL_Argv); |
4608196e | 1542 | PL_Argv = NULL; |
43c5f42d | 1543 | Safefree(PL_Cmd); |
bd61b366 | 1544 | PL_Cmd = NULL; |
ff8e2863 LW |
1545 | } |
1546 | ||
9555a685 | 1547 | #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION |
e446cec8 IZ |
1548 | |
1549 | bool | |
2fbb330f | 1550 | Perl_do_exec3(pTHX_ const char *incmd, int fd, int do_report) |
e446cec8 | 1551 | { |
27da23d5 | 1552 | dVAR; |
eb578fdb KW |
1553 | const char **a; |
1554 | char *s; | |
15db3ae2 | 1555 | char *buf; |
2fbb330f | 1556 | char *cmd; |
2fbb330f | 1557 | /* Make a copy so we can change it */ |
6fca0082 | 1558 | const Size_t cmdlen = strlen(incmd) + 1; |
7918f24d NC |
1559 | |
1560 | PERL_ARGS_ASSERT_DO_EXEC3; | |
1561 | ||
15db3ae2 DM |
1562 | Newx(buf, cmdlen, char); |
1563 | cmd = buf; | |
cfff9797 | 1564 | memcpy(cmd, incmd, cmdlen); |
a687059c | 1565 | |
748a9306 LW |
1566 | while (*cmd && isSPACE(*cmd)) |
1567 | cmd++; | |
1568 | ||
a687059c LW |
1569 | /* save an extra exec if possible */ |
1570 | ||
bf38876a | 1571 | #ifdef CSH |
d05c1ba0 | 1572 | { |
0c19750d | 1573 | char flags[PERL_FLAGS_MAX]; |
d05c1ba0 JH |
1574 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && |
1575 | strnEQ(cmd+PL_cshlen," -c",3)) { | |
28f0d0ec | 1576 | my_strlcpy(flags, "-c", PERL_FLAGS_MAX); |
d05c1ba0 JH |
1577 | s = cmd+PL_cshlen+3; |
1578 | if (*s == 'f') { | |
1579 | s++; | |
28f0d0ec | 1580 | my_strlcat(flags, "f", PERL_FLAGS_MAX - 2); |
d05c1ba0 JH |
1581 | } |
1582 | if (*s == ' ') | |
1583 | s++; | |
1584 | if (*s++ == '\'') { | |
0bcc34c2 | 1585 | char * const ncmd = s; |
d05c1ba0 JH |
1586 | |
1587 | while (*s) | |
1588 | s++; | |
1589 | if (s[-1] == '\n') | |
1590 | *--s = '\0'; | |
1591 | if (s[-1] == '\'') { | |
1592 | *--s = '\0'; | |
b35112e7 | 1593 | PERL_FPU_PRE_EXEC |
7c0dd7ca | 1594 | PerlProc_execl(PL_cshname, "csh", flags, ncmd, (char*)NULL); |
b35112e7 | 1595 | PERL_FPU_POST_EXEC |
d05c1ba0 | 1596 | *s = '\''; |
a0f2c8ec | 1597 | S_exec_failed(aTHX_ PL_cshname, fd, do_report); |
15db3ae2 | 1598 | Safefree(buf); |
d05c1ba0 JH |
1599 | return FALSE; |
1600 | } | |
1601 | } | |
a687059c LW |
1602 | } |
1603 | } | |
bf38876a | 1604 | #endif /* CSH */ |
a687059c LW |
1605 | |
1606 | /* see if there are shell metacharacters in it */ | |
1607 | ||
748a9306 LW |
1608 | if (*cmd == '.' && isSPACE(cmd[1])) |
1609 | goto doshell; | |
1610 | ||
1611 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
1612 | goto doshell; | |
1613 | ||
294b3b39 | 1614 | s = cmd; |
0eb30aeb | 1615 | while (isWORDCHAR(*s)) |
294b3b39 | 1616 | s++; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1617 | if (*s == '=') |
1618 | goto doshell; | |
748a9306 | 1619 | |
a687059c | 1620 | for (s = cmd; *s; s++) { |
d05c1ba0 JH |
1621 | if (*s != ' ' && !isALPHA(*s) && |
1622 | strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { | |
a687059c LW |
1623 | if (*s == '\n' && !s[1]) { |
1624 | *s = '\0'; | |
1625 | break; | |
1626 | } | |
603a98b0 IZ |
1627 | /* handle the 2>&1 construct at the end */ |
1628 | if (*s == '>' && s[1] == '&' && s[2] == '1' | |
1629 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) | |
1630 | && (!s[3] || isSPACE(s[3]))) | |
1631 | { | |
6867be6d | 1632 | const char *t = s + 3; |
603a98b0 IZ |
1633 | |
1634 | while (*t && isSPACE(*t)) | |
1635 | ++t; | |
943bbd07 | 1636 | if (!*t && (PerlLIO_dup2(1,2) != -1)) { |
603a98b0 IZ |
1637 | s[-2] = '\0'; |
1638 | break; | |
1639 | } | |
1640 | } | |
a687059c | 1641 | doshell: |
b35112e7 | 1642 | PERL_FPU_PRE_EXEC |
7c0dd7ca | 1643 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char *)NULL); |
b35112e7 | 1644 | PERL_FPU_POST_EXEC |
a0f2c8ec | 1645 | S_exec_failed(aTHX_ PL_sh_path, fd, do_report); |
15db3ae2 | 1646 | Safefree(buf); |
a687059c LW |
1647 | return FALSE; |
1648 | } | |
1649 | } | |
748a9306 | 1650 | |
360ea906 | 1651 | Newx(PL_Argv, (s - cmd) / 2 + 2, const char*); |
3280af22 NIS |
1652 | PL_Cmd = savepvn(cmd, s-cmd); |
1653 | a = PL_Argv; | |
1654 | for (s = PL_Cmd; *s;) { | |
294b3b39 AL |
1655 | while (isSPACE(*s)) |
1656 | s++; | |
a687059c LW |
1657 | if (*s) |
1658 | *(a++) = s; | |
294b3b39 AL |
1659 | while (*s && !isSPACE(*s)) |
1660 | s++; | |
a687059c LW |
1661 | if (*s) |
1662 | *s++ = '\0'; | |
1663 | } | |
6136c704 | 1664 | *a = NULL; |
3280af22 | 1665 | if (PL_Argv[0]) { |
b35112e7 | 1666 | PERL_FPU_PRE_EXEC |
360ea906 | 1667 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
b35112e7 | 1668 | PERL_FPU_POST_EXEC |
b1248f16 | 1669 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1670 | do_execfree(); |
a687059c | 1671 | goto doshell; |
b1248f16 | 1672 | } |
a0f2c8ec | 1673 | S_exec_failed(aTHX_ PL_Argv[0], fd, do_report); |
a687059c | 1674 | } |
ff8e2863 | 1675 | do_execfree(); |
15db3ae2 | 1676 | Safefree(buf); |
a687059c LW |
1677 | return FALSE; |
1678 | } | |
1679 | ||
6890e559 | 1680 | #endif /* OS2 || WIN32 */ |
760ac839 | 1681 | |
25bbd826 CB |
1682 | #ifdef VMS |
1683 | #include <starlet.h> /* for sys$delprc */ | |
1684 | #endif | |
1685 | ||
79072805 | 1686 | I32 |
5aaab254 | 1687 | Perl_apply(pTHX_ I32 type, SV **mark, SV **sp) |
a687059c | 1688 | { |
97aff369 | 1689 | dVAR; |
eb578fdb KW |
1690 | I32 val; |
1691 | I32 tot = 0; | |
4634a855 | 1692 | const char *const what = PL_op_name[type]; |
5c144d81 | 1693 | const char *s; |
84c7b88c | 1694 | STRLEN len; |
890ce7af | 1695 | SV ** const oldmark = mark; |
885b4b39 | 1696 | bool killgp = FALSE; |
a687059c | 1697 | |
7918f24d NC |
1698 | PERL_ARGS_ASSERT_APPLY; |
1699 | ||
9a9b5ec9 DM |
1700 | PERL_UNUSED_VAR(what); /* may not be used depending on compile options */ |
1701 | ||
1444765e NC |
1702 | /* Doing this ahead of the switch statement preserves the old behaviour, |
1703 | where attempting to use kill as a taint test test would fail on | |
1704 | platforms where kill was not defined. */ | |
1705 | #ifndef HAS_KILL | |
1706 | if (type == OP_KILL) | |
4634a855 | 1707 | Perl_die(aTHX_ PL_no_func, what); |
1444765e NC |
1708 | #endif |
1709 | #ifndef HAS_CHOWN | |
1710 | if (type == OP_CHOWN) | |
4634a855 | 1711 | Perl_die(aTHX_ PL_no_func, what); |
1444765e NC |
1712 | #endif |
1713 | ||
1714 | ||
20408e3c | 1715 | #define APPLY_TAINT_PROPER() \ |
3280af22 | 1716 | STMT_START { \ |
284167a5 | 1717 | if (TAINT_get) { TAINT_PROPER(what); } \ |
873ef191 | 1718 | } STMT_END |
20408e3c GS |
1719 | |
1720 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
284167a5 | 1721 | if (TAINTING_get) { |
463ee0b2 | 1722 | while (++mark <= sp) { |
bbce6d69 | 1723 | if (SvTAINTED(*mark)) { |
1724 | TAINT; | |
1725 | break; | |
1726 | } | |
463ee0b2 LW |
1727 | } |
1728 | mark = oldmark; | |
1729 | } | |
a687059c | 1730 | switch (type) { |
79072805 | 1731 | case OP_CHMOD: |
20408e3c | 1732 | APPLY_TAINT_PROPER(); |
79072805 | 1733 | if (++mark <= sp) { |
4ea561bc | 1734 | val = SvIV(*mark); |
20408e3c GS |
1735 | APPLY_TAINT_PROPER(); |
1736 | tot = sp - mark; | |
79072805 | 1737 | while (++mark <= sp) { |
c4aca7d0 | 1738 | GV* gv; |
2ea1cce7 | 1739 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
c4aca7d0 GA |
1740 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1741 | #ifdef HAS_FCHMOD | |
1742 | APPLY_TAINT_PROPER(); | |
1743 | if (fchmod(PerlIO_fileno(IoIFP(GvIOn(gv))), val)) | |
1744 | tot--; | |
1745 | #else | |
b9c6780e | 1746 | Perl_die(aTHX_ PL_no_func, "fchmod"); |
c4aca7d0 GA |
1747 | #endif |
1748 | } | |
1749 | else { | |
1750 | tot--; | |
1751 | } | |
1752 | } | |
c4aca7d0 | 1753 | else { |
41188aa0 | 1754 | const char *name = SvPV_nomg_const(*mark, len); |
c4aca7d0 | 1755 | APPLY_TAINT_PROPER(); |
41188aa0 | 1756 | if (!IS_SAFE_PATHNAME(name, len, "chmod") || |
c8028aa6 TC |
1757 | PerlLIO_chmod(name, val)) { |
1758 | tot--; | |
1759 | } | |
c4aca7d0 | 1760 | } |
a687059c LW |
1761 | } |
1762 | } | |
1763 | break; | |
fe14fcc3 | 1764 | #ifdef HAS_CHOWN |
79072805 | 1765 | case OP_CHOWN: |
20408e3c | 1766 | APPLY_TAINT_PROPER(); |
79072805 | 1767 | if (sp - mark > 2) { |
eb578fdb | 1768 | I32 val2; |
463ee0b2 LW |
1769 | val = SvIVx(*++mark); |
1770 | val2 = SvIVx(*++mark); | |
20408e3c | 1771 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1772 | tot = sp - mark; |
79072805 | 1773 | while (++mark <= sp) { |
c4aca7d0 | 1774 | GV* gv; |
2ea1cce7 | 1775 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
c4aca7d0 GA |
1776 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1777 | #ifdef HAS_FCHOWN | |
1778 | APPLY_TAINT_PROPER(); | |
1779 | if (fchown(PerlIO_fileno(IoIFP(GvIOn(gv))), val, val2)) | |
1780 | tot--; | |
1781 | #else | |
b9c6780e | 1782 | Perl_die(aTHX_ PL_no_func, "fchown"); |
c4aca7d0 GA |
1783 | #endif |
1784 | } | |
1785 | else { | |
1786 | tot--; | |
1787 | } | |
1788 | } | |
c4aca7d0 | 1789 | else { |
41188aa0 | 1790 | const char *name = SvPV_nomg_const(*mark, len); |
c4aca7d0 | 1791 | APPLY_TAINT_PROPER(); |
41188aa0 | 1792 | if (!IS_SAFE_PATHNAME(name, len, "chown") || |
c8028aa6 | 1793 | PerlLIO_chown(name, val, val2)) { |
c4aca7d0 | 1794 | tot--; |
c8028aa6 | 1795 | } |
c4aca7d0 | 1796 | } |
a687059c LW |
1797 | } |
1798 | } | |
1799 | break; | |
b1248f16 | 1800 | #endif |
a1d180c4 | 1801 | /* |
dd64f1c3 AD |
1802 | XXX Should we make lchown() directly available from perl? |
1803 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1804 | nothing in the core. | |
1805 | --AD 5/1998 | |
1806 | */ | |
fe14fcc3 | 1807 | #ifdef HAS_KILL |
79072805 | 1808 | case OP_KILL: |
20408e3c | 1809 | APPLY_TAINT_PROPER(); |
55497cff | 1810 | if (mark == sp) |
1811 | break; | |
84c7b88c | 1812 | s = SvPVx_const(*++mark, len); |
c2fd40cb DM |
1813 | if (*s == '-' && isALPHA(s[1])) |
1814 | { | |
1815 | s++; | |
1816 | len--; | |
885b4b39 | 1817 | killgp = TRUE; |
c2fd40cb | 1818 | } |
e02bfb16 | 1819 | if (isALPHA(*s)) { |
84c7b88c | 1820 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') { |
79072805 | 1821 | s += 3; |
84c7b88c BF |
1822 | len -= 3; |
1823 | } | |
1824 | if ((val = whichsig_pvn(s, len)) < 0) | |
1825 | Perl_croak(aTHX_ "Unrecognized signal name \"%"SVf"\"", SVfARG(*mark)); | |
79072805 LW |
1826 | } |
1827 | else | |
c2fd40cb | 1828 | { |
4ea561bc | 1829 | val = SvIV(*mark); |
c2fd40cb DM |
1830 | if (val < 0) |
1831 | { | |
885b4b39 | 1832 | killgp = TRUE; |
c2fd40cb DM |
1833 | val = -val; |
1834 | } | |
1835 | } | |
20408e3c GS |
1836 | APPLY_TAINT_PROPER(); |
1837 | tot = sp - mark; | |
3595fcef | 1838 | #ifdef VMS |
1839 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
3595fcef | 1840 | if (val == SIGKILL) { |
3595fcef | 1841 | /* Use native sys$delprc() to insure that target process is |
1842 | * deleted; supervisor-mode images don't pay attention to | |
1843 | * CRTL's emulation of Unix-style signals and kill() | |
1844 | */ | |
1845 | while (++mark <= sp) { | |
5f521955 | 1846 | I32 proc; |
eb578fdb | 1847 | unsigned long int __vmssts; |
8af710eb | 1848 | SvGETMAGIC(*mark); |
e2c0f81f DG |
1849 | if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark))) |
1850 | Perl_croak(aTHX_ "Can't kill a non-numeric process ID"); | |
8af710eb | 1851 | proc = SvIV_nomg(*mark); |
20408e3c | 1852 | APPLY_TAINT_PROPER(); |
3595fcef | 1853 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1854 | tot--; | |
1855 | switch (__vmssts) { | |
1856 | case SS$_NONEXPR: | |
1857 | case SS$_NOSUCHNODE: | |
1858 | SETERRNO(ESRCH,__vmssts); | |
1859 | break; | |
1860 | case SS$_NOPRIV: | |
1861 | SETERRNO(EPERM,__vmssts); | |
1862 | break; | |
1863 | default: | |
1864 | SETERRNO(EVMSERR,__vmssts); | |
1865 | } | |
1866 | } | |
1867 | } | |
8165faea | 1868 | PERL_ASYNC_CHECK(); |
3595fcef | 1869 | break; |
1870 | } | |
1871 | #endif | |
c2fd40cb | 1872 | while (++mark <= sp) { |
60082291 | 1873 | Pid_t proc; |
c2fd40cb | 1874 | SvGETMAGIC(*mark); |
60082291 | 1875 | if (!(SvNIOK(*mark) || looks_like_number(*mark))) |
c2fd40cb DM |
1876 | Perl_croak(aTHX_ "Can't kill a non-numeric process ID"); |
1877 | proc = SvIV_nomg(*mark); | |
c2fd40cb | 1878 | APPLY_TAINT_PROPER(); |
111f73b5 DM |
1879 | #ifdef HAS_KILLPG |
1880 | /* use killpg in preference, as the killpg() wrapper for Win32 | |
1881 | * understands process groups, but the kill() wrapper doesn't */ | |
1882 | if (killgp ? PerlProc_killpg(proc, val) | |
1883 | : PerlProc_kill(proc, val)) | |
1884 | #else | |
1885 | if (PerlProc_kill(killgp ? -proc: proc, val)) | |
1886 | #endif | |
c2fd40cb | 1887 | tot--; |
a687059c | 1888 | } |
8165faea | 1889 | PERL_ASYNC_CHECK(); |
a687059c | 1890 | break; |
b1248f16 | 1891 | #endif |
79072805 | 1892 | case OP_UNLINK: |
20408e3c | 1893 | APPLY_TAINT_PROPER(); |
79072805 LW |
1894 | tot = sp - mark; |
1895 | while (++mark <= sp) { | |
41188aa0 | 1896 | s = SvPV_const(*mark, len); |
20408e3c | 1897 | APPLY_TAINT_PROPER(); |
41188aa0 | 1898 | if (!IS_SAFE_PATHNAME(s, len, "unlink")) { |
c8028aa6 TC |
1899 | tot--; |
1900 | } | |
f0d85c30 | 1901 | else if (PL_unsafe) { |
b8ffc8df | 1902 | if (UNLINK(s)) |
a687059c LW |
1903 | tot--; |
1904 | } | |
1905 | else { /* don't let root wipe out directories without -U */ | |
1dcae8b8 | 1906 | if (PerlLIO_lstat(s,&PL_statbuf) < 0) |
a687059c | 1907 | tot--; |
1dcae8b8 EZ |
1908 | else if (S_ISDIR(PL_statbuf.st_mode)) { |
1909 | tot--; | |
1910 | SETERRNO(EISDIR, SS$_NOPRIV); | |
1911 | } | |
a687059c | 1912 | else { |
b8ffc8df | 1913 | if (UNLINK(s)) |
a687059c LW |
1914 | tot--; |
1915 | } | |
1916 | } | |
1917 | } | |
1918 | break; | |
e96b369d | 1919 | #if defined(HAS_UTIME) || defined(HAS_FUTIMES) |
79072805 | 1920 | case OP_UTIME: |
20408e3c | 1921 | APPLY_TAINT_PROPER(); |
79072805 | 1922 | if (sp - mark > 2) { |
e96b369d GA |
1923 | #if defined(HAS_FUTIMES) |
1924 | struct timeval utbuf[2]; | |
1925 | void *utbufp = utbuf; | |
1926 | #elif defined(I_UTIME) || defined(VMS) | |
663a0e37 | 1927 | struct utimbuf utbuf; |
07409e01 | 1928 | struct utimbuf *utbufp = &utbuf; |
663a0e37 | 1929 | #else |
a687059c | 1930 | struct { |
dd2821f6 GS |
1931 | Time_t actime; |
1932 | Time_t modtime; | |
a687059c | 1933 | } utbuf; |
07409e01 | 1934 | void *utbufp = &utbuf; |
663a0e37 | 1935 | #endif |
a687059c | 1936 | |
0bcc34c2 AL |
1937 | SV* const accessed = *++mark; |
1938 | SV* const modified = *++mark; | |
c6f7b413 | 1939 | |
6ec06612 SB |
1940 | /* Be like C, and if both times are undefined, let the C |
1941 | * library figure out what to do. This usually means | |
1942 | * "current time". */ | |
c6f7b413 RS |
1943 | |
1944 | if ( accessed == &PL_sv_undef && modified == &PL_sv_undef ) | |
6ec06612 SB |
1945 | utbufp = NULL; |
1946 | else { | |
1947 | Zero(&utbuf, sizeof utbuf, char); | |
e96b369d | 1948 | #ifdef HAS_FUTIMES |
4ea561bc | 1949 | utbuf[0].tv_sec = (long)SvIV(accessed); /* time accessed */ |
e96b369d | 1950 | utbuf[0].tv_usec = 0; |
4ea561bc | 1951 | utbuf[1].tv_sec = (long)SvIV(modified); /* time modified */ |
e96b369d GA |
1952 | utbuf[1].tv_usec = 0; |
1953 | #elif defined(BIG_TIME) | |
4ea561bc NC |
1954 | utbuf.actime = (Time_t)SvNV(accessed); /* time accessed */ |
1955 | utbuf.modtime = (Time_t)SvNV(modified); /* time modified */ | |
517844ec | 1956 | #else |
4ea561bc NC |
1957 | utbuf.actime = (Time_t)SvIV(accessed); /* time accessed */ |
1958 | utbuf.modtime = (Time_t)SvIV(modified); /* time modified */ | |
517844ec | 1959 | #endif |
6ec06612 | 1960 | } |
4373e329 | 1961 | APPLY_TAINT_PROPER(); |
79072805 LW |
1962 | tot = sp - mark; |
1963 | while (++mark <= sp) { | |
e96b369d | 1964 | GV* gv; |
64617da9 | 1965 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
e96b369d GA |
1966 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1967 | #ifdef HAS_FUTIMES | |
1968 | APPLY_TAINT_PROPER(); | |
8b7231d9 SP |
1969 | if (futimes(PerlIO_fileno(IoIFP(GvIOn(gv))), |
1970 | (struct timeval *) utbufp)) | |
e96b369d GA |
1971 | tot--; |
1972 | #else | |
1973 | Perl_die(aTHX_ PL_no_func, "futimes"); | |
1974 | #endif | |
1975 | } | |
1976 | else { | |
1977 | tot--; | |
1978 | } | |
1979 | } | |
e96b369d | 1980 | else { |
41188aa0 | 1981 | const char * const name = SvPV_nomg_const(*mark, len); |
e96b369d | 1982 | APPLY_TAINT_PROPER(); |
41188aa0 | 1983 | if (!IS_SAFE_PATHNAME(name, len, "utime")) { |
c8028aa6 TC |
1984 | tot--; |
1985 | } | |
1986 | else | |
e96b369d | 1987 | #ifdef HAS_FUTIMES |
8b7231d9 | 1988 | if (utimes(name, (struct timeval *)utbufp)) |
e96b369d GA |
1989 | #else |
1990 | if (PerlLIO_utime(name, utbufp)) | |
1991 | #endif | |
1992 | tot--; | |
1993 | } | |
1994 | ||
a687059c | 1995 | } |
a687059c LW |
1996 | } |
1997 | else | |
79072805 | 1998 | tot = 0; |
a687059c | 1999 | break; |
a0d0e21e | 2000 | #endif |
a687059c LW |
2001 | } |
2002 | return tot; | |
20408e3c | 2003 | |
20408e3c | 2004 | #undef APPLY_TAINT_PROPER |
a687059c LW |
2005 | } |
2006 | ||
2007 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 2008 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae | 2009 | bool |
5aaab254 | 2010 | Perl_cando(pTHX_ Mode_t mode, bool effective, const Stat_t *statbufp) |
ae1951c1 NC |
2011 | /* effective is a flag, true for EUID, or for checking if the effective gid |
2012 | * is in the list of groups returned from getgroups(). | |
2013 | */ | |
a687059c | 2014 | { |
97aff369 | 2015 | dVAR; |
7918f24d NC |
2016 | |
2017 | PERL_ARGS_ASSERT_CANDO; | |
2018 | ||
bee1dbe2 | 2019 | #ifdef DOSISH |
fe14fcc3 LW |
2020 | /* [Comments and code from Len Reed] |
2021 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
2022 | * to write-protected files. The execute permission bit is set | |
486ec47a | 2023 | * by the Microsoft C library stat() function for the following: |
fe14fcc3 LW |
2024 | * .exe files |
2025 | * .com files | |
2026 | * .bat files | |
2027 | * directories | |
2028 | * All files and directories are readable. | |
2029 | * Directories and special files, e.g. "CON", cannot be | |
2030 | * write-protected. | |
2031 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
2032 | * bit set in the file system, but DOS permits changes to | |
2033 | * the directory anyway. In addition, all bets are off | |
2034 | * here for networked software, such as Novell and | |
2035 | * Sun's PC-NFS.] | |
2036 | */ | |
2037 | ||
bee1dbe2 LW |
2038 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
2039 | * too so it will actually look into the files for magic numbers | |
2040 | */ | |
7f4774ae | 2041 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 | 2042 | |
55497cff | 2043 | #else /* ! DOSISH */ |
b595cd4b RU |
2044 | # ifdef __CYGWIN__ |
2045 | if (ingroup(544,effective)) { /* member of Administrators */ | |
2046 | # else | |
985213f2 | 2047 | if ((effective ? PerlProc_geteuid() : PerlProc_getuid()) == 0) { /* root is special */ |
b595cd4b | 2048 | # endif |
7f4774ae | 2049 | if (mode == S_IXUSR) { |
c623bd54 | 2050 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c LW |
2051 | return TRUE; |
2052 | } | |
2053 | else | |
2054 | return TRUE; /* root reads and writes anything */ | |
2055 | return FALSE; | |
2056 | } | |
985213f2 | 2057 | if (statbufp->st_uid == (effective ? PerlProc_geteuid() : PerlProc_getuid()) ) { |
7f4774ae | 2058 | if (statbufp->st_mode & mode) |
a687059c LW |
2059 | return TRUE; /* ok as "user" */ |
2060 | } | |
d8eceb89 | 2061 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae | 2062 | if (statbufp->st_mode & mode >> 3) |
a687059c LW |
2063 | return TRUE; /* ok as "group" */ |
2064 | } | |
7f4774ae | 2065 | else if (statbufp->st_mode & mode >> 6) |
a687059c LW |
2066 | return TRUE; /* ok as "other" */ |
2067 | return FALSE; | |
55497cff | 2068 | #endif /* ! DOSISH */ |
a687059c | 2069 | } |
a0d0e21e | 2070 | #endif /* ! VMS */ |
a687059c | 2071 | |
1f676739 | 2072 | static bool |
0da8eb3a | 2073 | S_ingroup(pTHX_ Gid_t testgid, bool effective) |
a687059c | 2074 | { |
97aff369 | 2075 | dVAR; |
985213f2 | 2076 | if (testgid == (effective ? PerlProc_getegid() : PerlProc_getgid())) |
a687059c | 2077 | return TRUE; |
fe14fcc3 | 2078 | #ifdef HAS_GETGROUPS |
a687059c | 2079 | { |
331b57bc | 2080 | Groups_t *gary = NULL; |
79072805 | 2081 | I32 anum; |
331b57bc | 2082 | bool rc = FALSE; |
a687059c | 2083 | |
331b57bc SP |
2084 | anum = getgroups(0, gary); |
2085 | Newx(gary, anum, Groups_t); | |
2086 | anum = getgroups(anum, gary); | |
a687059c | 2087 | while (--anum >= 0) |
331b57bc SP |
2088 | if (gary[anum] == testgid) { |
2089 | rc = TRUE; | |
2090 | break; | |
2091 | } | |
2092 | ||
2093 | Safefree(gary); | |
2094 | return rc; | |
a687059c | 2095 | } |
c685562b | 2096 | #else |
a687059c | 2097 | return FALSE; |
cd39f2b6 | 2098 | #endif |
a687059c | 2099 | } |
c2ab57d4 | 2100 | |
fe14fcc3 | 2101 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 2102 | |
79072805 | 2103 | I32 |
864dbfa3 | 2104 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2105 | { |
97aff369 | 2106 | dVAR; |
0bcc34c2 | 2107 | const key_t key = (key_t)SvNVx(*++mark); |
c3312966 | 2108 | SV *nsv = optype == OP_MSGGET ? NULL : *++mark; |
6867be6d | 2109 | const I32 flags = SvIVx(*++mark); |
294a48e9 | 2110 | |
7918f24d | 2111 | PERL_ARGS_ASSERT_DO_IPCGET; |
294a48e9 | 2112 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2113 | |
748a9306 | 2114 | SETERRNO(0,0); |
c2ab57d4 LW |
2115 | switch (optype) |
2116 | { | |
fe14fcc3 | 2117 | #ifdef HAS_MSG |
79072805 | 2118 | case OP_MSGGET: |
c2ab57d4 | 2119 | return msgget(key, flags); |
e5d73d77 | 2120 | #endif |
fe14fcc3 | 2121 | #ifdef HAS_SEM |
79072805 | 2122 | case OP_SEMGET: |
c3312966 | 2123 | return semget(key, (int) SvIV(nsv), flags); |
e5d73d77 | 2124 | #endif |
fe14fcc3 | 2125 | #ifdef HAS_SHM |
79072805 | 2126 | case OP_SHMGET: |
c3312966 | 2127 | return shmget(key, (size_t) SvUV(nsv), flags); |
e5d73d77 | 2128 | #endif |
fe14fcc3 | 2129 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2130 | default: |
fe13d51d | 2131 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2132 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2133 | #endif |
c2ab57d4 LW |
2134 | } |
2135 | return -1; /* should never happen */ | |
2136 | } | |
2137 | ||
79072805 | 2138 | I32 |
864dbfa3 | 2139 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2140 | { |
97aff369 | 2141 | dVAR; |
c2ab57d4 | 2142 | char *a; |
a0d0e21e | 2143 | I32 ret = -1; |
6867be6d | 2144 | const I32 id = SvIVx(*++mark); |
95b63a38 | 2145 | #ifdef Semctl |
6867be6d | 2146 | const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
95b63a38 | 2147 | #endif |
6867be6d | 2148 | const I32 cmd = SvIVx(*++mark); |
0bcc34c2 AL |
2149 | SV * const astr = *++mark; |
2150 | STRLEN infosize = 0; | |
2151 | I32 getinfo = (cmd == IPC_STAT); | |
c2ab57d4 | 2152 | |
7918f24d | 2153 | PERL_ARGS_ASSERT_DO_IPCCTL; |
0bcc34c2 | 2154 | PERL_UNUSED_ARG(sp); |
c2ab57d4 LW |
2155 | |
2156 | switch (optype) | |
2157 | { | |
fe14fcc3 | 2158 | #ifdef HAS_MSG |
79072805 | 2159 | case OP_MSGCTL: |
c2ab57d4 LW |
2160 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2161 | infosize = sizeof(struct msqid_ds); | |
2162 | break; | |
e5d73d77 | 2163 | #endif |
fe14fcc3 | 2164 | #ifdef HAS_SHM |
79072805 | 2165 | case OP_SHMCTL: |
c2ab57d4 LW |
2166 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2167 | infosize = sizeof(struct shmid_ds); | |
2168 | break; | |
e5d73d77 | 2169 | #endif |
fe14fcc3 | 2170 | #ifdef HAS_SEM |
79072805 | 2171 | case OP_SEMCTL: |
39398f3f | 2172 | #ifdef Semctl |
c2ab57d4 LW |
2173 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2174 | infosize = sizeof(struct semid_ds); | |
2175 | else if (cmd == GETALL || cmd == SETALL) | |
2176 | { | |
8e591e46 | 2177 | struct semid_ds semds; |
bd89102f | 2178 | union semun semun; |
e6f0bdd6 GS |
2179 | #ifdef EXTRA_F_IN_SEMUN_BUF |
2180 | semun.buff = &semds; | |
2181 | #else | |
84902520 | 2182 | semun.buf = &semds; |
e6f0bdd6 | 2183 | #endif |
c2ab57d4 | 2184 | getinfo = (cmd == GETALL); |
9b89d93d GB |
2185 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
2186 | return -1; | |
6e21c824 LW |
2187 | infosize = semds.sem_nsems * sizeof(short); |
2188 | /* "short" is technically wrong but much more portable | |
2189 | than guessing about u_?short(_t)? */ | |
c2ab57d4 | 2190 | } |
39398f3f | 2191 | #else |
fe13d51d | 2192 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2193 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2194 | #endif |
c2ab57d4 | 2195 | break; |
e5d73d77 | 2196 | #endif |
fe14fcc3 | 2197 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2198 | default: |
fe13d51d | 2199 | /* diag_listed_as: shm%s not implemented */ |
cea2e8a9 | 2200 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2201 | #endif |
c2ab57d4 LW |
2202 | } |
2203 | ||
2204 | if (infosize) | |
2205 | { | |
2206 | if (getinfo) | |
2207 | { | |
93524f2b | 2208 | SvPV_force_nolen(astr); |
a0d0e21e | 2209 | a = SvGROW(astr, infosize+1); |
c2ab57d4 LW |
2210 | } |
2211 | else | |
2212 | { | |
93524f2b | 2213 | STRLEN len; |
463ee0b2 LW |
2214 | a = SvPV(astr, len); |
2215 | if (len != infosize) | |
cea2e8a9 | 2216 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 JH |
2217 | PL_op_desc[optype], |
2218 | (unsigned long)len, | |
2219 | (long)infosize); | |
c2ab57d4 LW |
2220 | } |
2221 | } | |
2222 | else | |
2223 | { | |
0bcc34c2 | 2224 | const IV i = SvIV(astr); |
56431972 | 2225 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 | 2226 | } |
748a9306 | 2227 | SETERRNO(0,0); |
c2ab57d4 LW |
2228 | switch (optype) |
2229 | { | |
fe14fcc3 | 2230 | #ifdef HAS_MSG |
79072805 | 2231 | case OP_MSGCTL: |
bee1dbe2 | 2232 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 2233 | break; |
e5d73d77 | 2234 | #endif |
fe14fcc3 | 2235 | #ifdef HAS_SEM |
bd89102f | 2236 | case OP_SEMCTL: { |
39398f3f | 2237 | #ifdef Semctl |
bd89102f AD |
2238 | union semun unsemds; |
2239 | ||
64d76282 BC |
2240 | if(cmd == SETVAL) { |
2241 | unsemds.val = PTR2nat(a); | |
2242 | } | |
2243 | else { | |
e6f0bdd6 | 2244 | #ifdef EXTRA_F_IN_SEMUN_BUF |
64d76282 | 2245 | unsemds.buff = (struct semid_ds *)a; |
e6f0bdd6 | 2246 | #else |
64d76282 | 2247 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 | 2248 | #endif |
64d76282 | 2249 | } |
bd89102f | 2250 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f | 2251 | #else |
fe13d51d | 2252 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2253 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2254 | #endif |
bd89102f | 2255 | } |
c2ab57d4 | 2256 | break; |
e5d73d77 | 2257 | #endif |
fe14fcc3 | 2258 | #ifdef HAS_SHM |
79072805 | 2259 | case OP_SHMCTL: |
bee1dbe2 | 2260 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 2261 | break; |
e5d73d77 | 2262 | #endif |
c2ab57d4 LW |
2263 | } |
2264 | if (getinfo && ret >= 0) { | |
79072805 LW |
2265 | SvCUR_set(astr, infosize); |
2266 | *SvEND(astr) = '\0'; | |
a0d0e21e | 2267 | SvSETMAGIC(astr); |
c2ab57d4 LW |
2268 | } |
2269 | return ret; | |
2270 | } | |
2271 | ||
79072805 | 2272 | I32 |
864dbfa3 | 2273 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2274 | { |
97aff369 | 2275 | dVAR; |
fe14fcc3 | 2276 | #ifdef HAS_MSG |
463ee0b2 | 2277 | STRLEN len; |
6867be6d | 2278 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2279 | SV * const mstr = *++mark; |
2280 | const I32 flags = SvIVx(*++mark); | |
2281 | const char * const mbuf = SvPV_const(mstr, len); | |
2282 | const I32 msize = len - sizeof(long); | |
2283 | ||
7918f24d | 2284 | PERL_ARGS_ASSERT_DO_MSGSND; |
890ce7af | 2285 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2286 | |
0bcc34c2 | 2287 | if (msize < 0) |
cea2e8a9 | 2288 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 | 2289 | SETERRNO(0,0); |
bee1dbe2 | 2290 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 2291 | #else |
2d51fa4d RGS |
2292 | PERL_UNUSED_ARG(sp); |
2293 | PERL_UNUSED_ARG(mark); | |
fe13d51d | 2294 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2295 | Perl_croak(aTHX_ "msgsnd not implemented"); |
7c522378 | 2296 | return -1; |
e5d73d77 | 2297 | #endif |
c2ab57d4 LW |
2298 | } |
2299 | ||
79072805 | 2300 | I32 |
864dbfa3 | 2301 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2302 | { |
fe14fcc3 | 2303 | #ifdef HAS_MSG |
97aff369 | 2304 | dVAR; |
c2ab57d4 LW |
2305 | char *mbuf; |
2306 | long mtype; | |
6867be6d | 2307 | I32 msize, flags, ret; |
6867be6d | 2308 | const I32 id = SvIVx(*++mark); |
0bcc34c2 | 2309 | SV * const mstr = *++mark; |
7918f24d NC |
2310 | |
2311 | PERL_ARGS_ASSERT_DO_MSGRCV; | |
890ce7af | 2312 | PERL_UNUSED_ARG(sp); |
79072805 | 2313 | |
c2e66d9e GS |
2314 | /* suppress warning when reading into undef var --jhi */ |
2315 | if (! SvOK(mstr)) | |
76f68e9b | 2316 | sv_setpvs(mstr, ""); |
463ee0b2 LW |
2317 | msize = SvIVx(*++mark); |
2318 | mtype = (long)SvIVx(*++mark); | |
2319 | flags = SvIVx(*++mark); | |
93524f2b | 2320 | SvPV_force_nolen(mstr); |
a0d0e21e | 2321 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
a1d180c4 | 2322 | |
748a9306 | 2323 | SETERRNO(0,0); |
bee1dbe2 | 2324 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 2325 | if (ret >= 0) { |
79072805 LW |
2326 | SvCUR_set(mstr, sizeof(long)+ret); |
2327 | *SvEND(mstr) = '\0'; | |
41d6edb2 JH |
2328 | /* who knows who has been playing with this message? */ |
2329 | SvTAINTED_on(mstr); | |
c2ab57d4 LW |
2330 | } |
2331 | return ret; | |
e5d73d77 | 2332 | #else |
2d51fa4d RGS |
2333 | PERL_UNUSED_ARG(sp); |
2334 | PERL_UNUSED_ARG(mark); | |
fe13d51d | 2335 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2336 | Perl_croak(aTHX_ "msgrcv not implemented"); |
7c522378 | 2337 | return -1; |
e5d73d77 | 2338 | #endif |
c2ab57d4 LW |
2339 | } |
2340 | ||
79072805 | 2341 | I32 |
864dbfa3 | 2342 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2343 | { |
fe14fcc3 | 2344 | #ifdef HAS_SEM |
97aff369 | 2345 | dVAR; |
463ee0b2 | 2346 | STRLEN opsize; |
6867be6d | 2347 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2348 | SV * const opstr = *++mark; |
2349 | const char * const opbuf = SvPV_const(opstr, opsize); | |
7918f24d NC |
2350 | |
2351 | PERL_ARGS_ASSERT_DO_SEMOP; | |
890ce7af | 2352 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2353 | |
248ff010 NC |
2354 | if (opsize < 3 * SHORTSIZE |
2355 | || (opsize % (3 * SHORTSIZE))) { | |
93189314 | 2356 | SETERRNO(EINVAL,LIB_INVARG); |
c2ab57d4 LW |
2357 | return -1; |
2358 | } | |
748a9306 | 2359 | SETERRNO(0,0); |
248ff010 NC |
2360 | /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */ |
2361 | { | |
6867be6d | 2362 | const int nsops = opsize / (3 * sizeof (short)); |
248ff010 | 2363 | int i = nsops; |
0bcc34c2 | 2364 | short * const ops = (short *) opbuf; |
248ff010 NC |
2365 | short *o = ops; |
2366 | struct sembuf *temps, *t; | |
2367 | I32 result; | |
2368 | ||
a02a5408 | 2369 | Newx (temps, nsops, struct sembuf); |
248ff010 NC |
2370 | t = temps; |
2371 | while (i--) { | |
2372 | t->sem_num = *o++; | |
2373 | t->sem_op = *o++; | |
2374 | t->sem_flg = *o++; | |
2375 | t++; | |
2376 | } | |
2377 | result = semop(id, temps, nsops); | |
248ff010 NC |
2378 | Safefree(temps); |
2379 | return result; | |
2380 | } | |
e5d73d77 | 2381 | #else |
fe13d51d | 2382 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2383 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 | 2384 | #endif |
c2ab57d4 LW |
2385 | } |
2386 | ||
79072805 | 2387 | I32 |
864dbfa3 | 2388 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2389 | { |
fe14fcc3 | 2390 | #ifdef HAS_SHM |
97aff369 | 2391 | dVAR; |
4373e329 | 2392 | char *shm; |
c2ab57d4 | 2393 | struct shmid_ds shmds; |
6867be6d | 2394 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2395 | SV * const mstr = *++mark; |
2396 | const I32 mpos = SvIVx(*++mark); | |
2397 | const I32 msize = SvIVx(*++mark); | |
7918f24d NC |
2398 | |
2399 | PERL_ARGS_ASSERT_DO_SHMIO; | |
890ce7af | 2400 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2401 | |
748a9306 | 2402 | SETERRNO(0,0); |
c2ab57d4 LW |
2403 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
2404 | return -1; | |
7f39519f NC |
2405 | if (mpos < 0 || msize < 0 |
2406 | || (size_t)mpos + msize > (size_t)shmds.shm_segsz) { | |
93189314 | 2407 | SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
2408 | return -1; |
2409 | } | |
d4c19fe8 | 2410 | shm = (char *)shmat(id, NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
2411 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2412 | return -1; | |
79072805 | 2413 | if (optype == OP_SHMREAD) { |
c8ae91a8 | 2414 | char *mbuf; |
9f538c04 | 2415 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
b399897d CS |
2416 | SvGETMAGIC(mstr); |
2417 | SvUPGRADE(mstr, SVt_PV); | |
9f538c04 | 2418 | if (! SvOK(mstr)) |
76f68e9b | 2419 | sv_setpvs(mstr, ""); |
af8ff727 | 2420 | SvPOK_only(mstr); |
bb7a0f54 | 2421 | mbuf = SvGROW(mstr, (STRLEN)msize+1); |
a0d0e21e | 2422 | |
bee1dbe2 | 2423 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
2424 | SvCUR_set(mstr, msize); |
2425 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 2426 | SvSETMAGIC(mstr); |
d929ce6f JH |
2427 | /* who knows who has been playing with this shared memory? */ |
2428 | SvTAINTED_on(mstr); | |
c2ab57d4 LW |
2429 | } |
2430 | else { | |
93524f2b | 2431 | STRLEN len; |
c2ab57d4 | 2432 | |
93524f2b | 2433 | const char *mbuf = SvPV_const(mstr, len); |
027aa12d | 2434 | const I32 n = ((I32)len > msize) ? msize : (I32)len; |
bee1dbe2 | 2435 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2436 | if (n < msize) |
bee1dbe2 | 2437 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2438 | } |
2439 | return shmdt(shm); | |
e5d73d77 | 2440 | #else |
fe13d51d | 2441 | /* diag_listed_as: shm%s not implemented */ |
cea2e8a9 | 2442 | Perl_croak(aTHX_ "shm I/O not implemented"); |
7c522378 | 2443 | return -1; |
e5d73d77 | 2444 | #endif |
c2ab57d4 LW |
2445 | } |
2446 | ||
fe14fcc3 | 2447 | #endif /* SYSV IPC */ |
4e35701f | 2448 | |
0d44d22b | 2449 | /* |
ccfc67b7 JH |
2450 | =head1 IO Functions |
2451 | ||
0d44d22b NC |
2452 | =for apidoc start_glob |
2453 | ||
2454 | Function called by C<do_readline> to spawn a glob (or do the glob inside | |
154e47c8 | 2455 | perl on VMS). This code used to be inline, but now perl uses C<File::Glob> |
210b36aa | 2456 | this glob starter is only used by miniperl during the build process. |
0d44d22b | 2457 | Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up. |
fab3f3a7 | 2458 | |
0d44d22b NC |
2459 | =cut |
2460 | */ | |
2461 | ||
2462 | PerlIO * | |
2463 | Perl_start_glob (pTHX_ SV *tmpglob, IO *io) | |
2464 | { | |
27da23d5 | 2465 | dVAR; |
561b68a9 | 2466 | SV * const tmpcmd = newSV(0); |
0d44d22b | 2467 | PerlIO *fp; |
41188aa0 TC |
2468 | STRLEN len; |
2469 | const char *s = SvPV(tmpglob, len); | |
7918f24d NC |
2470 | |
2471 | PERL_ARGS_ASSERT_START_GLOB; | |
2472 | ||
41188aa0 | 2473 | if (!IS_SAFE_SYSCALL(s, len, "pattern", "glob")) |
c8028aa6 TC |
2474 | return NULL; |
2475 | ||
0d44d22b NC |
2476 | ENTER; |
2477 | SAVEFREESV(tmpcmd); | |
2478 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
2479 | /* since spawning off a process is a real performance hit */ | |
dca5a913 JM |
2480 | |
2481 | PerlIO * | |
2482 | Perl_vms_start_glob | |
2483 | (pTHX_ SV *tmpglob, | |
2484 | IO *io); | |
2485 | ||
49a7a762 | 2486 | fp = Perl_vms_start_glob(aTHX_ tmpglob, io); |
dca5a913 | 2487 | |
0d44d22b | 2488 | #else /* !VMS */ |
0d44d22b NC |
2489 | #ifdef DOSISH |
2490 | #ifdef OS2 | |
2491 | sv_setpv(tmpcmd, "for a in "); | |
2492 | sv_catsv(tmpcmd, tmpglob); | |
2493 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
2494 | #else | |
2495 | #ifdef DJGPP | |
2496 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
2497 | sv_catsv(tmpcmd, tmpglob); | |
2498 | #else | |
2499 | sv_setpv(tmpcmd, "perlglob "); | |
2500 | sv_catsv(tmpcmd, tmpglob); | |
2501 | sv_catpv(tmpcmd, " |"); | |
2502 | #endif /* !DJGPP */ | |
2503 | #endif /* !OS2 */ | |
2504 | #else /* !DOSISH */ | |
2505 | #if defined(CSH) | |
2506 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); | |
2507 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
2508 | sv_catsv(tmpcmd, tmpglob); | |
2509 | sv_catpv(tmpcmd, "' 2>/dev/null |"); | |
2510 | #else | |
2511 | sv_setpv(tmpcmd, "echo "); | |
2512 | sv_catsv(tmpcmd, tmpglob); | |
0d44d22b | 2513 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
0d44d22b NC |
2514 | #endif /* !CSH */ |
2515 | #endif /* !DOSISH */ | |
93b2dae1 FC |
2516 | { |
2517 | GV * const envgv = gv_fetchpvs("ENV", 0, SVt_PVHV); | |
2518 | SV ** const home = hv_fetchs(GvHV(envgv), "HOME", 0); | |
25018358 | 2519 | SV ** const path = hv_fetchs(GvHV(envgv), "PATH", 0); |
93b2dae1 | 2520 | if (home && *home) SvGETMAGIC(*home); |
25018358 | 2521 | if (path && *path) SvGETMAGIC(*path); |
93b2dae1 FC |
2522 | save_hash(gv_fetchpvs("ENV", 0, SVt_PVHV)); |
2523 | if (home && *home) SvSETMAGIC(*home); | |
25018358 | 2524 | if (path && *path) SvSETMAGIC(*path); |
93b2dae1 | 2525 | } |
d5eb9a46 NC |
2526 | (void)do_open6(PL_last_in_gv, SvPVX_const(tmpcmd), SvCUR(tmpcmd), |
2527 | NULL, NULL, 0); | |
0d44d22b NC |
2528 | fp = IoIFP(io); |
2529 | #endif /* !VMS */ | |
2530 | LEAVE; | |
de7dabb6 TC |
2531 | |
2532 | if (!fp && ckWARN(WARN_GLOB)) { | |
2533 | Perl_warner(aTHX_ packWARN(WARN_GLOB), "glob failed (can't start child: %s)", | |
2534 | Strerror(errno)); | |
2535 | } | |
2536 | ||
0d44d22b NC |
2537 | return fp; |
2538 | } | |
66610fdd RGS |
2539 | |
2540 | /* | |
2541 | * Local variables: | |
2542 | * c-indentation-style: bsd | |
2543 | * c-basic-offset: 4 | |
14d04a33 | 2544 | * indent-tabs-mode: nil |
66610fdd RGS |
2545 | * End: |
2546 | * | |
14d04a33 | 2547 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 2548 | */ |