Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a687059c | 5 | * |
6e21c824 LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
a687059c | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Far below them they saw the white waters pour into a foaming bowl, and |
13 | * then swirl darkly about a deep oval basin in the rocks, until they found | |
14 | * their way out again through a narrow gate, and flowed away, fuming and | |
15 | * chattering, into calmer and more level reaches. | |
16 | * | |
17 | * [p.684 of _The Lord of the Rings_, IV/vi: "The Forbidden Pool"] | |
a687059c LW |
18 | */ |
19 | ||
166f8a29 DM |
20 | /* This file contains functions that do the actual I/O on behalf of ops. |
21 | * For example, pp_print() calls the do_print() function in this file for | |
22 | * each argument needing printing. | |
23 | */ | |
24 | ||
a687059c | 25 | #include "EXTERN.h" |
864dbfa3 | 26 | #define PERL_IN_DOIO_C |
a687059c LW |
27 | #include "perl.h" |
28 | ||
fe14fcc3 | 29 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
aec308ec | 30 | #ifndef HAS_SEM |
c2ab57d4 | 31 | #include <sys/ipc.h> |
aec308ec | 32 | #endif |
fe14fcc3 | 33 | #ifdef HAS_MSG |
c2ab57d4 | 34 | #include <sys/msg.h> |
e5d73d77 | 35 | #endif |
fe14fcc3 | 36 | #ifdef HAS_SHM |
c2ab57d4 | 37 | #include <sys/shm.h> |
a0d0e21e | 38 | # ifndef HAS_SHMAT_PROTOTYPE |
20ce7b12 | 39 | extern Shmat_t shmat (int, char *, int); |
a0d0e21e | 40 | # endif |
c2ab57d4 | 41 | #endif |
e5d73d77 | 42 | #endif |
c2ab57d4 | 43 | |
663a0e37 | 44 | #ifdef I_UTIME |
3730b96e | 45 | # if defined(_MSC_VER) || defined(__MINGW32__) |
3fe9a6f1 | 46 | # include <sys/utime.h> |
47 | # else | |
48 | # include <utime.h> | |
49 | # endif | |
663a0e37 | 50 | #endif |
85aff577 | 51 | |
85aff577 CS |
52 | #ifdef O_EXCL |
53 | # define OPEN_EXCL O_EXCL | |
54 | #else | |
55 | # define OPEN_EXCL 0 | |
56 | #endif | |
a687059c | 57 | |
0c19750d SP |
58 | #define PERL_MODE_MAX 8 |
59 | #define PERL_FLAGS_MAX 10 | |
60 | ||
76121258 | 61 | #include <signal.h> |
76121258 | 62 | |
a2b41d5c NC |
63 | static IO * |
64 | S_openn_setup(pTHX_ GV *gv, char *mode, PerlIO **saveifp, PerlIO **saveofp, | |
65 | int *savefd, char *savetype) | |
a567e93b | 66 | { |
eb578fdb | 67 | IO * const io = GvIOn(gv); |
a687059c | 68 | |
a2b41d5c NC |
69 | PERL_ARGS_ASSERT_OPENN_SETUP; |
70 | ||
71 | *saveifp = NULL; | |
72 | *saveofp = NULL; | |
73 | *savefd = -1; | |
74 | *savetype = IoTYPE_CLOSED; | |
7918f24d | 75 | |
b931b1d9 | 76 | Zero(mode,sizeof(mode),char); |
3280af22 | 77 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 78 | |
b931b1d9 | 79 | /* If currently open - close before we re-open */ |
a0d0e21e | 80 | if (IoIFP(io)) { |
ee518936 NIS |
81 | if (IoTYPE(io) == IoTYPE_STD) { |
82 | /* This is a clone of one of STD* handles */ | |
ee518936 | 83 | } |
26297fe9 NC |
84 | else { |
85 | const int old_fd = PerlIO_fileno(IoIFP(io)); | |
86 | ||
87 | if (old_fd >= 0 && old_fd <= PL_maxsysfd) { | |
88 | /* This is one of the original STD* handles */ | |
a2b41d5c NC |
89 | *saveifp = IoIFP(io); |
90 | *saveofp = IoOFP(io); | |
91 | *savetype = IoTYPE(io); | |
92 | *savefd = old_fd; | |
26297fe9 NC |
93 | } |
94 | else { | |
95 | int result; | |
96 | ||
97 | if (IoTYPE(io) == IoTYPE_PIPE) | |
98 | result = PerlProc_pclose(IoIFP(io)); | |
99 | else if (IoIFP(io) != IoOFP(io)) { | |
100 | if (IoOFP(io)) { | |
101 | result = PerlIO_close(IoOFP(io)); | |
102 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
103 | } | |
104 | else | |
105 | result = PerlIO_close(IoIFP(io)); | |
106 | } | |
107 | else | |
108 | result = PerlIO_close(IoIFP(io)); | |
109 | ||
110 | if (result == EOF && old_fd > PL_maxsysfd) { | |
111 | /* Why is this not Perl_warn*() call ? */ | |
112 | PerlIO_printf(Perl_error_log, | |
113 | "Warning: unable to close filehandle %"HEKf" properly.\n", | |
114 | HEKfARG(GvENAME_HEK(gv)) | |
115 | ); | |
116 | } | |
117 | } | |
118 | } | |
4608196e | 119 | IoOFP(io) = IoIFP(io) = NULL; |
a687059c | 120 | } |
a2b41d5c NC |
121 | return io; |
122 | } | |
123 | ||
124 | bool | |
125 | Perl_do_openn(pTHX_ GV *gv, const char *oname, I32 len, int as_raw, | |
126 | int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, | |
127 | I32 num_svs) | |
128 | { | |
4b451737 NC |
129 | PERL_ARGS_ASSERT_DO_OPENN; |
130 | ||
131 | if (as_raw) { | |
132 | /* sysopen style args, i.e. integer mode and permissions */ | |
133 | ||
134 | if (num_svs != 0) { | |
135 | Perl_croak(aTHX_ "panic: sysopen with multiple args, num_svs=%ld", | |
136 | (long) num_svs); | |
137 | } | |
138 | return do_open_raw(gv, oname, len, rawmode, rawperm); | |
139 | } | |
140 | return do_open6(gv, oname, len, supplied_fp, svp, num_svs); | |
141 | } | |
142 | ||
143 | bool | |
144 | Perl_do_open_raw(pTHX_ GV *gv, const char *oname, STRLEN len, | |
145 | int rawmode, int rawperm) | |
146 | { | |
a2b41d5c NC |
147 | PerlIO *saveifp; |
148 | PerlIO *saveofp; | |
149 | int savefd; | |
150 | char savetype; | |
151 | char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */ | |
152 | IO * const io = openn_setup(gv, mode, &saveifp, &saveofp, &savefd, &savetype); | |
153 | int writing = 0; | |
154 | PerlIO *fp; | |
a2b41d5c | 155 | |
4b451737 | 156 | PERL_ARGS_ASSERT_DO_OPEN_RAW; |
c07a80fd | 157 | |
4b451737 NC |
158 | /* For ease of blame back to 5.000, keep the existing indenting. */ |
159 | { | |
b931b1d9 | 160 | /* sysopen style args, i.e. integer mode and permissions */ |
ee518936 | 161 | STRLEN ix = 0; |
e1ec3a88 | 162 | const int appendtrunc = |
3dccc55c | 163 | 0 |
d1da7611 | 164 | #ifdef O_APPEND /* Not fully portable. */ |
3dccc55c | 165 | |O_APPEND |
d1da7611 JH |
166 | #endif |
167 | #ifdef O_TRUNC /* Not fully portable. */ | |
3dccc55c | 168 | |O_TRUNC |
d1da7611 | 169 | #endif |
3dccc55c | 170 | ; |
6867be6d | 171 | const int modifyingmode = O_WRONLY|O_RDWR|O_CREAT|appendtrunc; |
3dccc55c | 172 | int ismodifying; |
9229bf8d | 173 | SV *namesv; |
3dccc55c | 174 | |
3dccc55c JH |
175 | /* It's not always |
176 | ||
177 | O_RDONLY 0 | |
178 | O_WRONLY 1 | |
179 | O_RDWR 2 | |
180 | ||
181 | It might be (in OS/390 and Mac OS Classic it is) | |
182 | ||
183 | O_WRONLY 1 | |
184 | O_RDONLY 2 | |
185 | O_RDWR 3 | |
186 | ||
187 | This means that simple & with O_RDWR would look | |
188 | like O_RDONLY is present. Therefore we have to | |
189 | be more careful. | |
190 | */ | |
191 | if ((ismodifying = (rawmode & modifyingmode))) { | |
192 | if ((ismodifying & O_WRONLY) == O_WRONLY || | |
193 | (ismodifying & O_RDWR) == O_RDWR || | |
194 | (ismodifying & (O_CREAT|appendtrunc))) | |
195 | TAINT_PROPER("sysopen"); | |
196 | } | |
3b6c1aba | 197 | mode[ix++] = IoTYPE_NUMERIC; /* Marker to openn to use numeric "sysopen" */ |
b931b1d9 | 198 | |
09458382 | 199 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
b94c04ac | 200 | rawmode |= O_LARGEFILE; /* Transparently largefiley. */ |
5ff3f7a4 GS |
201 | #endif |
202 | ||
06c7082d | 203 | IoTYPE(io) = PerlIO_intmode2str(rawmode, &mode[ix], &writing); |
ee518936 | 204 | |
59cd0e26 | 205 | namesv = newSVpvn_flags(oname, len, SVs_TEMP); |
4b451737 | 206 | fp = PerlIO_openn(aTHX_ NULL, mode, -1, rawmode, rawperm, NULL, 1, &namesv); |
a687059c | 207 | } |
4b451737 NC |
208 | return openn_cleanup(gv, io, fp, mode, oname, saveifp, saveofp, savefd, |
209 | savetype, writing, 0, NULL); | |
210 | } | |
211 | ||
212 | bool | |
213 | Perl_do_open6(pTHX_ GV *gv, const char *oname, STRLEN len, | |
214 | PerlIO *supplied_fp, SV **svp, U32 num_svs) | |
215 | { | |
4b451737 NC |
216 | PerlIO *saveifp; |
217 | PerlIO *saveofp; | |
218 | int savefd; | |
219 | char savetype; | |
220 | char mode[PERL_MODE_MAX]; /* file mode ("r\0", "rb\0", "ab\0" etc.) */ | |
221 | IO * const io = openn_setup(gv, mode, &saveifp, &saveofp, &savefd, &savetype); | |
222 | int writing = 0; | |
223 | PerlIO *fp; | |
224 | bool was_fdopen = FALSE; | |
225 | char *type = NULL; | |
226 | ||
227 | PERL_ARGS_ASSERT_DO_OPEN6; | |
228 | ||
229 | /* For ease of blame back to 5.000, keep the existing indenting. */ | |
230 | { | |
b931b1d9 | 231 | /* Regular (non-sys) open */ |
2fbb330f | 232 | char *name; |
faecd977 | 233 | STRLEN olen = len; |
b931b1d9 NIS |
234 | char *tend; |
235 | int dodup = 0; | |
c564b489 NC |
236 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
237 | ||
238 | /* Collect default raw/crlf info from the op */ | |
239 | if (PL_op && PL_op->op_type == OP_OPEN) { | |
240 | /* set up IO layers */ | |
241 | const U8 flags = PL_op->op_private; | |
242 | in_raw = (flags & OPpOPEN_IN_RAW); | |
243 | in_crlf = (flags & OPpOPEN_IN_CRLF); | |
244 | out_raw = (flags & OPpOPEN_OUT_RAW); | |
245 | out_crlf = (flags & OPpOPEN_OUT_CRLF); | |
246 | } | |
c07a80fd | 247 | |
2fbb330f | 248 | type = savepvn(oname, len); |
b931b1d9 | 249 | tend = type+len; |
faecd977 | 250 | SAVEFREEPV(type); |
eb649f83 AMS |
251 | |
252 | /* Lose leading and trailing white space */ | |
294b3b39 AL |
253 | while (isSPACE(*type)) |
254 | type++; | |
eb649f83 AMS |
255 | while (tend > type && isSPACE(tend[-1])) |
256 | *--tend = '\0'; | |
257 | ||
6170680b | 258 | if (num_svs) { |
41188aa0 TC |
259 | const char *p; |
260 | STRLEN nlen = 0; | |
c2be40b1 | 261 | /* New style explicit name, type is just mode and layer info */ |
9a869a14 | 262 | #ifdef USE_STDIO |
2fbb330f | 263 | if (SvROK(*svp) && !strchr(oname,'&')) { |
9a869a14 RGS |
264 | if (ckWARN(WARN_IO)) |
265 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
266 | "Can't open a reference"); | |
93189314 | 267 | SETERRNO(EINVAL, LIB_INVARG); |
a6fc70e5 | 268 | fp = NULL; |
9a869a14 RGS |
269 | goto say_false; |
270 | } | |
271 | #endif /* USE_STDIO */ | |
41188aa0 TC |
272 | p = (SvOK(*svp) || SvGMAGICAL(*svp)) ? SvPV(*svp, nlen) : NULL; |
273 | ||
a6fc70e5 NC |
274 | if (p && !IS_SAFE_PATHNAME(p, nlen, "open")) { |
275 | fp = NULL; | |
c8028aa6 | 276 | goto say_false; |
a6fc70e5 | 277 | } |
c8028aa6 | 278 | |
41188aa0 TC |
279 | name = p ? savepvn(p, nlen) : savepvs(""); |
280 | ||
faecd977 | 281 | SAVEFREEPV(name); |
6170680b | 282 | } |
faecd977 | 283 | else { |
faecd977 | 284 | name = type; |
b931b1d9 | 285 | len = tend-type; |
faecd977 | 286 | } |
6170680b | 287 | IoTYPE(io) = *type; |
516a5887 | 288 | if ((*type == IoTYPE_RDWR) && /* scary */ |
01a8ea99 | 289 | (*(type+1) == IoTYPE_RDONLY || *(type+1) == IoTYPE_WRONLY) && |
516a5887 | 290 | ((!num_svs || (tend > type+1 && tend[-1] != IoTYPE_PIPE)))) { |
c2be40b1 | 291 | TAINT_PROPER("open"); |
6170680b | 292 | mode[1] = *type++; |
c07a80fd | 293 | writing = 1; |
a687059c | 294 | } |
c07a80fd | 295 | |
9f37169a | 296 | if (*type == IoTYPE_PIPE) { |
b931b1d9 NIS |
297 | if (num_svs) { |
298 | if (type[1] != IoTYPE_STD) { | |
c2be40b1 | 299 | unknown_open_mode: |
b931b1d9 NIS |
300 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); |
301 | } | |
302 | type++; | |
6170680b | 303 | } |
294b3b39 AL |
304 | do { |
305 | type++; | |
306 | } while (isSPACE(*type)); | |
faecd977 | 307 | if (!num_svs) { |
6170680b | 308 | name = type; |
b931b1d9 | 309 | len = tend-type; |
faecd977 | 310 | } |
4a7d1889 NIS |
311 | if (*name == '\0') { |
312 | /* command is missing 19990114 */ | |
06eaf0bc | 313 | if (ckWARN(WARN_PIPE)) |
9014280d | 314 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc | 315 | errno = EPIPE; |
a6fc70e5 | 316 | fp = NULL; |
06eaf0bc GS |
317 | goto say_false; |
318 | } | |
f27977c3 | 319 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
c07a80fd | 320 | TAINT_ENV(); |
321 | TAINT_PROPER("piped open"); | |
b931b1d9 | 322 | if (!num_svs && name[len-1] == '|') { |
faecd977 | 323 | name[--len] = '\0' ; |
599cee73 | 324 | if (ckWARN(WARN_PIPE)) |
9014280d | 325 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Can't open bidirectional pipe"); |
7b8d334a | 326 | } |
a1d180c4 | 327 | mode[0] = 'w'; |
c07a80fd | 328 | writing = 1; |
0c19750d | 329 | if (out_raw) |
5686ee58 | 330 | mode[1] = 'b'; |
0c19750d | 331 | else if (out_crlf) |
5686ee58 | 332 | mode[1] = 't'; |
4a7d1889 NIS |
333 | if (num_svs > 1) { |
334 | fp = PerlProc_popen_list(mode, num_svs, svp); | |
335 | } | |
336 | else { | |
337 | fp = PerlProc_popen(name,mode); | |
338 | } | |
1771866f NIS |
339 | if (num_svs) { |
340 | if (*type) { | |
341 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
a6fc70e5 | 342 | fp = NULL; |
1771866f NIS |
343 | goto say_false; |
344 | } | |
345 | } | |
346 | } | |
c2be40b1 | 347 | } /* IoTYPE_PIPE */ |
9f37169a | 348 | else if (*type == IoTYPE_WRONLY) { |
c07a80fd | 349 | TAINT_PROPER("open"); |
6170680b | 350 | type++; |
9f37169a JH |
351 | if (*type == IoTYPE_WRONLY) { |
352 | /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ | |
50952442 | 353 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b | 354 | type++; |
a0d0e21e | 355 | } |
ee518936 | 356 | else { |
c07a80fd | 357 | mode[0] = 'w'; |
ee518936 | 358 | } |
c07a80fd | 359 | writing = 1; |
360 | ||
0c19750d | 361 | if (out_raw) |
5686ee58 | 362 | mode[1] = 'b'; |
0c19750d | 363 | else if (out_crlf) |
5686ee58 | 364 | mode[1] = 't'; |
6170680b | 365 | if (*type == '&') { |
c07a80fd | 366 | duplicity: |
ecdeb87c | 367 | dodup = PERLIO_DUP_FD; |
e620cd72 NIS |
368 | type++; |
369 | if (*type == '=') { | |
c07a80fd | 370 | dodup = 0; |
e620cd72 | 371 | type++; |
4a7d1889 | 372 | } |
ee518936 | 373 | if (!num_svs && !*type && supplied_fp) { |
4a7d1889 | 374 | /* "<+&" etc. is used by typemaps */ |
c07a80fd | 375 | fp = supplied_fp; |
ee518936 | 376 | } |
a0d0e21e | 377 | else { |
35da51f7 | 378 | PerlIO *that_fp = NULL; |
b4464d55 | 379 | int wanted_fd; |
22ff3130 | 380 | UV uv; |
e620cd72 | 381 | if (num_svs > 1) { |
fe13d51d | 382 | /* diag_listed_as: More than one argument to '%s' open */ |
e620cd72 NIS |
383 | Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); |
384 | } | |
294b3b39 AL |
385 | while (isSPACE(*type)) |
386 | type++; | |
f90b7232 FC |
387 | if (num_svs && ( |
388 | SvIOK(*svp) | |
389 | || (SvPOKp(*svp) && looks_like_number(*svp)) | |
390 | )) { | |
b4464d55 | 391 | wanted_fd = SvUV(*svp); |
24a7a40d | 392 | num_svs = 0; |
ee518936 | 393 | } |
22ff3130 HS |
394 | else if (isDIGIT(*type) |
395 | && grok_atoUV(type, &uv, NULL) | |
396 | && uv <= INT_MAX | |
397 | ) { | |
398 | wanted_fd = (int)uv; | |
e620cd72 | 399 | } |
c07a80fd | 400 | else { |
e1ec3a88 | 401 | const IO* thatio; |
e620cd72 NIS |
402 | if (num_svs) { |
403 | thatio = sv_2io(*svp); | |
404 | } | |
405 | else { | |
35da51f7 | 406 | GV * const thatgv = gv_fetchpvn_flags(type, tend - type, |
90e5519e | 407 | 0, SVt_PVIO); |
e620cd72 NIS |
408 | thatio = GvIO(thatgv); |
409 | } | |
c07a80fd | 410 | if (!thatio) { |
6e21c824 | 411 | #ifdef EINVAL |
93189314 | 412 | SETERRNO(EINVAL,SS_IVCHAN); |
6e21c824 | 413 | #endif |
a6fc70e5 | 414 | fp = NULL; |
c07a80fd | 415 | goto say_false; |
416 | } | |
f4e789af | 417 | if ((that_fp = IoIFP(thatio))) { |
7211d486 JH |
418 | /* Flush stdio buffer before dup. --mjd |
419 | * Unfortunately SEEK_CURing 0 seems to | |
420 | * be optimized away on most platforms; | |
421 | * only Solaris and Linux seem to flush | |
422 | * on that. --jhi */ | |
7211d486 JH |
423 | /* On the other hand, do all platforms |
424 | * take gracefully to flushing a read-only | |
425 | * filehandle? Perhaps we should do | |
426 | * fsetpos(src)+fgetpos(dst)? --nik */ | |
ecdeb87c | 427 | PerlIO_flush(that_fp); |
b4464d55 | 428 | wanted_fd = PerlIO_fileno(that_fp); |
0759c907 JH |
429 | /* When dup()ing STDIN, STDOUT or STDERR |
430 | * explicitly set appropriate access mode */ | |
f4e789af NC |
431 | if (that_fp == PerlIO_stdout() |
432 | || that_fp == PerlIO_stderr()) | |
0759c907 | 433 | IoTYPE(io) = IoTYPE_WRONLY; |
f4e789af | 434 | else if (that_fp == PerlIO_stdin()) |
0759c907 JH |
435 | IoTYPE(io) = IoTYPE_RDONLY; |
436 | /* When dup()ing a socket, say result is | |
437 | * one as well */ | |
438 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) | |
50952442 | 439 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd | 440 | } |
0c9375a5 TC |
441 | else { |
442 | SETERRNO(EBADF, RMS_IFI); | |
443 | fp = NULL; | |
444 | goto say_false; | |
445 | } | |
a0d0e21e | 446 | } |
ee518936 | 447 | if (!num_svs) |
bd61b366 | 448 | type = NULL; |
ecdeb87c NIS |
449 | if (that_fp) { |
450 | fp = PerlIO_fdupopen(aTHX_ that_fp, NULL, dodup); | |
451 | } | |
452 | else { | |
c07a80fd | 453 | if (dodup) |
b4464d55 | 454 | wanted_fd = PerlLIO_dup(wanted_fd); |
ecdeb87c NIS |
455 | else |
456 | was_fdopen = TRUE; | |
b4464d55 NC |
457 | if (!(fp = PerlIO_openn(aTHX_ type,mode,wanted_fd,0,0,NULL,num_svs,svp))) { |
458 | if (dodup && wanted_fd >= 0) | |
459 | PerlLIO_close(wanted_fd); | |
ecdeb87c | 460 | } |
faecd977 | 461 | } |
c07a80fd | 462 | } |
ee518936 | 463 | } /* & */ |
c07a80fd | 464 | else { |
294b3b39 AL |
465 | while (isSPACE(*type)) |
466 | type++; | |
b931b1d9 | 467 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
b931b1d9 | 468 | type++; |
760ac839 | 469 | fp = PerlIO_stdout(); |
50952442 | 470 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb | 471 | if (num_svs > 1) { |
fe13d51d | 472 | /* diag_listed_as: More than one argument to '%s' open */ |
7cf31beb NIS |
473 | Perl_croak(aTHX_ "More than one argument to '>%c' open",IoTYPE_STD); |
474 | } | |
c07a80fd | 475 | } |
476 | else { | |
9229bf8d NC |
477 | if (num_svs) { |
478 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
479 | } | |
480 | else { | |
481 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 482 | type = NULL; |
9229bf8d | 483 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 484 | } |
c07a80fd | 485 | } |
ee518936 | 486 | } /* !& */ |
7e72d509 JH |
487 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
488 | goto unknown_open_mode; | |
c2be40b1 | 489 | } /* IoTYPE_WRONLY */ |
9f37169a | 490 | else if (*type == IoTYPE_RDONLY) { |
294b3b39 AL |
491 | do { |
492 | type++; | |
493 | } while (isSPACE(*type)); | |
bf38876a | 494 | mode[0] = 'r'; |
0c19750d | 495 | if (in_raw) |
5686ee58 | 496 | mode[1] = 'b'; |
0c19750d | 497 | else if (in_crlf) |
5686ee58 | 498 | mode[1] = 't'; |
6170680b | 499 | if (*type == '&') { |
bf38876a | 500 | goto duplicity; |
6170680b | 501 | } |
b931b1d9 | 502 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
b931b1d9 | 503 | type++; |
760ac839 | 504 | fp = PerlIO_stdin(); |
50952442 | 505 | IoTYPE(io) = IoTYPE_STD; |
7cf31beb | 506 | if (num_svs > 1) { |
fe13d51d | 507 | /* diag_listed_as: More than one argument to '%s' open */ |
7cf31beb NIS |
508 | Perl_croak(aTHX_ "More than one argument to '<%c' open",IoTYPE_STD); |
509 | } | |
a687059c | 510 | } |
ee518936 | 511 | else { |
9229bf8d NC |
512 | if (num_svs) { |
513 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
514 | } | |
515 | else { | |
516 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 517 | type = NULL; |
9229bf8d | 518 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 519 | } |
ee518936 | 520 | } |
7e72d509 JH |
521 | if (!fp && type && *type && *type != ':' && !isIDFIRST(*type)) |
522 | goto unknown_open_mode; | |
c2be40b1 JH |
523 | } /* IoTYPE_RDONLY */ |
524 | else if ((num_svs && /* '-|...' or '...|' */ | |
525 | type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || | |
b931b1d9 | 526 | (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { |
6170680b | 527 | if (num_svs) { |
b931b1d9 | 528 | type += 2; /* skip over '-|' */ |
6170680b IZ |
529 | } |
530 | else { | |
b931b1d9 NIS |
531 | *--tend = '\0'; |
532 | while (tend > type && isSPACE(tend[-1])) | |
533 | *--tend = '\0'; | |
a6e20a40 AL |
534 | for (; isSPACE(*type); type++) |
535 | ; | |
6170680b | 536 | name = type; |
b931b1d9 | 537 | len = tend-type; |
6170680b | 538 | } |
4a7d1889 NIS |
539 | if (*name == '\0') { |
540 | /* command is missing 19990114 */ | |
06eaf0bc | 541 | if (ckWARN(WARN_PIPE)) |
9014280d | 542 | Perl_warner(aTHX_ packWARN(WARN_PIPE), "Missing command in piped open"); |
06eaf0bc | 543 | errno = EPIPE; |
a6fc70e5 | 544 | fp = NULL; |
06eaf0bc GS |
545 | goto say_false; |
546 | } | |
770526c1 | 547 | if (!(*name == '-' && name[1] == '\0') || num_svs) |
79072805 LW |
548 | TAINT_ENV(); |
549 | TAINT_PROPER("piped open"); | |
a1d180c4 | 550 | mode[0] = 'r'; |
0c19750d | 551 | |
0c19750d | 552 | if (in_raw) |
5686ee58 | 553 | mode[1] = 'b'; |
0c19750d | 554 | else if (in_crlf) |
5686ee58 | 555 | mode[1] = 't'; |
0c19750d | 556 | |
4a7d1889 NIS |
557 | if (num_svs > 1) { |
558 | fp = PerlProc_popen_list(mode,num_svs,svp); | |
559 | } | |
e620cd72 | 560 | else { |
4a7d1889 NIS |
561 | fp = PerlProc_popen(name,mode); |
562 | } | |
50952442 | 563 | IoTYPE(io) = IoTYPE_PIPE; |
1771866f | 564 | if (num_svs) { |
294b3b39 AL |
565 | while (isSPACE(*type)) |
566 | type++; | |
1771866f NIS |
567 | if (*type) { |
568 | if (PerlIO_apply_layers(aTHX_ fp, mode, type) != 0) { | |
a6fc70e5 | 569 | fp = NULL; |
1771866f NIS |
570 | goto say_false; |
571 | } | |
572 | } | |
573 | } | |
a687059c | 574 | } |
c2be40b1 | 575 | else { /* layer(Args) */ |
6170680b | 576 | if (num_svs) |
c2be40b1 | 577 | goto unknown_open_mode; |
6170680b | 578 | name = type; |
50952442 | 579 | IoTYPE(io) = IoTYPE_RDONLY; |
a6e20a40 AL |
580 | for (; isSPACE(*name); name++) |
581 | ; | |
88b61e10 | 582 | mode[0] = 'r'; |
0c19750d | 583 | |
0c19750d | 584 | if (in_raw) |
5686ee58 | 585 | mode[1] = 'b'; |
0c19750d | 586 | else if (in_crlf) |
5686ee58 | 587 | mode[1] = 't'; |
0c19750d | 588 | |
770526c1 | 589 | if (*name == '-' && name[1] == '\0') { |
760ac839 | 590 | fp = PerlIO_stdin(); |
50952442 | 591 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 592 | } |
16fe6d59 | 593 | else { |
9229bf8d NC |
594 | if (num_svs) { |
595 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); | |
596 | } | |
597 | else { | |
598 | SV *namesv = newSVpvn_flags(type, tend - type, SVs_TEMP); | |
bd61b366 | 599 | type = NULL; |
9229bf8d | 600 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,1,&namesv); |
ee518936 | 601 | } |
16fe6d59 | 602 | } |
a687059c LW |
603 | } |
604 | } | |
a6fc70e5 NC |
605 | |
606 | say_false: | |
607 | return openn_cleanup(gv, io, fp, mode, oname, saveifp, saveofp, savefd, | |
608 | savetype, writing, was_fdopen, type); | |
609 | } | |
610 | ||
611 | /* Yes, this is ugly, but it's private, and I don't see a cleaner way to | |
612 | simplify the two-headed public interface of do_openn. */ | |
613 | static bool | |
614 | S_openn_cleanup(pTHX_ GV *gv, IO *io, PerlIO *fp, char *mode, const char *oname, | |
615 | PerlIO *saveifp, PerlIO *saveofp, int savefd, char savetype, | |
616 | int writing, bool was_fdopen, const char *type) | |
617 | { | |
618 | int fd; | |
619 | ||
620 | PERL_ARGS_ASSERT_OPENN_CLEANUP; | |
621 | ||
bee1dbe2 | 622 | if (!fp) { |
ce44635a | 623 | if (IoTYPE(io) == IoTYPE_RDONLY && ckWARN(WARN_NEWLINE) |
7cb3f959 | 624 | && should_warn_nl(oname) |
ce44635a | 625 | |
041457d9 | 626 | ) |
5d37acd6 DM |
627 | { |
628 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ | |
9014280d | 629 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); |
5d37acd6 DM |
630 | GCC_DIAG_RESTORE; |
631 | } | |
6e21c824 | 632 | goto say_false; |
bee1dbe2 | 633 | } |
a00b5bd3 NIS |
634 | |
635 | if (ckWARN(WARN_IO)) { | |
636 | if ((IoTYPE(io) == IoTYPE_RDONLY) && | |
637 | (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { | |
9014280d | 638 | Perl_warner(aTHX_ packWARN(WARN_IO), |
d0c0e7dd FC |
639 | "Filehandle STD%s reopened as %"HEKf |
640 | " only for input", | |
97828cef | 641 | ((fp == PerlIO_stdout()) ? "OUT" : "ERR"), |
d0c0e7dd | 642 | HEKfARG(GvENAME_HEK(gv))); |
a00b5bd3 | 643 | } |
ee518936 | 644 | else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { |
9014280d | 645 | Perl_warner(aTHX_ packWARN(WARN_IO), |
d0c0e7dd FC |
646 | "Filehandle STDIN reopened as %"HEKf" only for output", |
647 | HEKfARG(GvENAME_HEK(gv)) | |
648 | ); | |
a00b5bd3 NIS |
649 | } |
650 | } | |
651 | ||
e99cca91 | 652 | fd = PerlIO_fileno(fp); |
375ed12a JH |
653 | /* Do NOT do: "if (fd < 0) goto say_false;" here. If there is no |
654 | * fd assume it isn't a socket - this covers PerlIO::scalar - | |
655 | * otherwise unless we "know" the type probe for socket-ness. | |
e99cca91 NIS |
656 | */ |
657 | if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && fd >= 0) { | |
658 | if (PerlLIO_fstat(fd,&PL_statbuf) < 0) { | |
659 | /* If PerlIO claims to have fd we had better be able to fstat() it. */ | |
660 | (void) PerlIO_close(fp); | |
6e21c824 | 661 | goto say_false; |
a687059c | 662 | } |
7114a2d2 | 663 | #ifndef PERL_MICRO |
3280af22 | 664 | if (S_ISSOCK(PL_statbuf.st_mode)) |
50952442 | 665 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 LW |
666 | #ifdef HAS_SOCKET |
667 | else if ( | |
3280af22 | 668 | !(PL_statbuf.st_mode & S_IFMT) |
0759c907 JH |
669 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
670 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ | |
671 | ) { /* on OS's that return 0 on fstat()ed pipe */ | |
e99cca91 NIS |
672 | char tmpbuf[256]; |
673 | Sock_size_t buflen = sizeof tmpbuf; | |
674 | if (PerlSock_getsockname(fd, (struct sockaddr *)tmpbuf, &buflen) >= 0 | |
675 | || errno != ENOTSOCK) | |
676 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ | |
677 | /* but some return 0 for streams too, sigh */ | |
99b89507 | 678 | } |
e99cca91 | 679 | #endif /* HAS_SOCKET */ |
7114a2d2 | 680 | #endif /* !PERL_MICRO */ |
a687059c | 681 | } |
e99cca91 NIS |
682 | |
683 | /* Eeek - FIXME !!! | |
684 | * If this is a standard handle we discard all the layer stuff | |
685 | * and just dup the fd into whatever was on the handle before ! | |
686 | */ | |
687 | ||
6e21c824 | 688 | if (saveifp) { /* must use old fp? */ |
f5b9d040 | 689 | /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR |
24c23ab4 | 690 | then dup the new fileno down |
f5b9d040 | 691 | */ |
6e21c824 | 692 | if (saveofp) { |
f5b9d040 | 693 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 694 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 695 | PerlIO_close(saveofp); |
6e21c824 LW |
696 | } |
697 | } | |
6e60e805 | 698 | if (savefd != fd) { |
e934609f | 699 | /* Still a small can-of-worms here if (say) PerlIO::scalar |
ecdeb87c NIS |
700 | is assigned to (say) STDOUT - for now let dup2() fail |
701 | and provide the error | |
702 | */ | |
375ed12a JH |
703 | if (fd < 0) { |
704 | SETERRNO(EBADF,RMS_IFI); | |
705 | goto say_false; | |
706 | } else if (PerlLIO_dup2(fd, savefd) < 0) { | |
bd4a5668 NIS |
707 | (void)PerlIO_close(fp); |
708 | goto say_false; | |
709 | } | |
d082dcd6 | 710 | #ifdef VMS |
6e60e805 | 711 | if (savefd != PerlIO_fileno(PerlIO_stdin())) { |
d0e2cf63 AMS |
712 | char newname[FILENAME_MAX+1]; |
713 | if (PerlIO_getname(fp, newname)) { | |
714 | if (fd == PerlIO_fileno(PerlIO_stdout())) | |
0db50132 | 715 | vmssetuserlnm("SYS$OUTPUT", newname); |
d0e2cf63 | 716 | if (fd == PerlIO_fileno(PerlIO_stderr())) |
0db50132 | 717 | vmssetuserlnm("SYS$ERROR", newname); |
d0e2cf63 | 718 | } |
d082dcd6 JH |
719 | } |
720 | #endif | |
d0e2cf63 AMS |
721 | |
722 | #if !defined(WIN32) | |
723 | /* PL_fdpid isn't used on Windows, so avoid this useless work. | |
724 | * XXX Probably the same for a lot of other places. */ | |
725 | { | |
726 | Pid_t pid; | |
727 | SV *sv; | |
728 | ||
d0e2cf63 | 729 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
862a34c6 | 730 | SvUPGRADE(sv, SVt_IV); |
d0e2cf63 | 731 | pid = SvIVX(sv); |
45977657 | 732 | SvIV_set(sv, 0); |
d0e2cf63 | 733 | sv = *av_fetch(PL_fdpid,savefd,TRUE); |
862a34c6 | 734 | SvUPGRADE(sv, SVt_IV); |
45977657 | 735 | SvIV_set(sv, pid); |
d0e2cf63 AMS |
736 | } |
737 | #endif | |
738 | ||
e212fc47 AMS |
739 | if (was_fdopen) { |
740 | /* need to close fp without closing underlying fd */ | |
741 | int ofd = PerlIO_fileno(fp); | |
375ed12a | 742 | int dupfd = ofd >= 0 ? PerlLIO_dup(ofd) : -1; |
03e631df JH |
743 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
744 | /* Assume if we have F_SETFD we have F_GETFD */ | |
375ed12a JH |
745 | int coe = ofd >= 0 ? fcntl(ofd, F_GETFD) : -1; |
746 | if (coe < 0) { | |
747 | if (dupfd >= 0) | |
748 | PerlLIO_close(dupfd); | |
749 | goto say_false; | |
750 | } | |
03e631df | 751 | #endif |
375ed12a JH |
752 | if (ofd < 0 || dupfd < 0) { |
753 | if (dupfd >= 0) | |
754 | PerlLIO_close(dupfd); | |
755 | goto say_false; | |
756 | } | |
e212fc47 | 757 | PerlIO_close(fp); |
375ed12a | 758 | PerlLIO_dup2(dupfd, ofd); |
03e631df JH |
759 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760 | /* The dup trick has lost close-on-exec on ofd */ | |
761 | fcntl(ofd,F_SETFD, coe); | |
762 | #endif | |
e212fc47 | 763 | PerlLIO_close(dupfd); |
ecdeb87c | 764 | } |
e212fc47 AMS |
765 | else |
766 | PerlIO_close(fp); | |
6e21c824 LW |
767 | } |
768 | fp = saveifp; | |
760ac839 | 769 | PerlIO_clearerr(fp); |
e99cca91 | 770 | fd = PerlIO_fileno(fp); |
6e21c824 | 771 | } |
a0d0e21e | 772 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
e99cca91 | 773 | if (fd >= 0) { |
375ed12a JH |
774 | if (fcntl(fd, F_SETFD, fd > PL_maxsysfd) < 0) { |
775 | PerlLIO_close(fd); | |
776 | goto say_false; | |
777 | } | |
a8710ca1 | 778 | } |
1462b684 | 779 | #endif |
8990e307 | 780 | IoIFP(io) = fp; |
b931b1d9 | 781 | |
684bef36 | 782 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a | 783 | if (writing) { |
50952442 | 784 | if (IoTYPE(io) == IoTYPE_SOCKET |
e99cca91 | 785 | || (IoTYPE(io) == IoTYPE_WRONLY && fd >= 0 && S_ISCHR(PL_statbuf.st_mode)) ) { |
a33cf58c | 786 | char *s = mode; |
3b6c1aba JH |
787 | if (*s == IoTYPE_IMPLICIT || *s == IoTYPE_NUMERIC) |
788 | s++; | |
a33cf58c | 789 | *s = 'w'; |
7c491510 | 790 | if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,s,fd,0,0,NULL,0,NULL))) { |
760ac839 | 791 | PerlIO_close(fp); |
6e21c824 | 792 | goto say_false; |
fe14fcc3 | 793 | } |
1462b684 LW |
794 | } |
795 | else | |
8990e307 | 796 | IoOFP(io) = fp; |
bf38876a | 797 | } |
a687059c | 798 | return TRUE; |
6e21c824 | 799 | |
7b52d656 | 800 | say_false: |
8990e307 LW |
801 | IoIFP(io) = saveifp; |
802 | IoOFP(io) = saveofp; | |
803 | IoTYPE(io) = savetype; | |
6e21c824 | 804 | return FALSE; |
a687059c LW |
805 | } |
806 | ||
760ac839 | 807 | PerlIO * |
157fb5a1 | 808 | Perl_nextargv(pTHX_ GV *gv, bool nomagicopen) |
a687059c | 809 | { |
2d03de9c | 810 | IO * const io = GvIOp(gv); |
fe14fcc3 | 811 | |
7918f24d NC |
812 | PERL_ARGS_ASSERT_NEXTARGV; |
813 | ||
3280af22 | 814 | if (!PL_argvoutgv) |
fafc274c | 815 | PL_argvoutgv = gv_fetchpvs("ARGVOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
5513c2cf | 816 | if (io && (IoFLAGS(io) & (IOf_ARGV|IOf_START)) == (IOf_ARGV|IOf_START)) { |
18708f5a | 817 | IoFLAGS(io) &= ~IOf_START; |
7a1c5554 | 818 | if (PL_inplace) { |
294b3b39 | 819 | assert(PL_defoutgv); |
29a861e7 NC |
820 | Perl_av_create_and_push(aTHX_ &PL_argvout_stack, |
821 | SvREFCNT_inc_simple_NN(PL_defoutgv)); | |
7a1c5554 | 822 | } |
18708f5a | 823 | } |
3280af22 NIS |
824 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
825 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ | |
fe14fcc3 | 826 | #ifdef HAS_FCHMOD |
c797f2d8 DM |
827 | if (PL_lastfd != -1) |
828 | (void)fchmod(PL_lastfd,PL_filemode); | |
fe14fcc3 | 829 | #else |
b28d0864 | 830 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 LW |
831 | #endif |
832 | } | |
c797f2d8 | 833 | PL_lastfd = -1; |
3280af22 | 834 | PL_filemode = 0; |
5c501b37 | 835 | if (!GvAV(gv)) |
4608196e | 836 | return NULL; |
b9f2b683 | 837 | while (av_tindex(GvAV(gv)) >= 0) { |
85aff577 | 838 | STRLEN oldlen; |
1fa0529f | 839 | SV *const sv = av_shift(GvAV(gv)); |
8990e307 | 840 | SAVEFREESV(sv); |
4bac9ae4 | 841 | SvTAINTED_off(GvSVn(gv)); /* previous tainting irrelevant */ |
e203899d | 842 | sv_setsv(GvSVn(gv),sv); |
79072805 | 843 | SvSETMAGIC(GvSV(gv)); |
3280af22 | 844 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
d8015975 | 845 | if (LIKELY(!PL_inplace)) { |
157fb5a1 RGS |
846 | if (nomagicopen |
847 | ? do_open6(gv, "<", 1, NULL, &GvSV(gv), 1) | |
848 | : do_open6(gv, PL_oldname, oldlen, NULL, NULL, 0) | |
849 | ) { | |
d8015975 NC |
850 | return IoIFP(GvIOp(gv)); |
851 | } | |
852 | } | |
853 | else { | |
854 | /* This very long block ends with return IoIFP(GvIOp(gv)); | |
855 | Both this block and the block above fall through on open | |
856 | failure to the warning code, and then the while loop above tries | |
857 | the next entry. */ | |
858 | if (do_open_raw(gv, PL_oldname, oldlen, O_RDONLY, 0)) { | |
1fa0529f NC |
859 | #ifndef FLEXFILENAMES |
860 | int filedev; | |
861 | int fileino; | |
862 | #endif | |
863 | Uid_t fileuid; | |
864 | Gid_t filegid; | |
865 | ||
79072805 | 866 | TAINT_PROPER("inplace open"); |
3280af22 | 867 | if (oldlen == 1 && *PL_oldname == '-') { |
fafc274c NC |
868 | setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, |
869 | SVt_PVIO)); | |
a0d0e21e | 870 | return IoIFP(GvIOp(gv)); |
c623bd54 | 871 | } |
99b89507 | 872 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
873 | filedev = PL_statbuf.st_dev; |
874 | fileino = PL_statbuf.st_ino; | |
99b89507 | 875 | #endif |
3280af22 NIS |
876 | PL_filemode = PL_statbuf.st_mode; |
877 | fileuid = PL_statbuf.st_uid; | |
878 | filegid = PL_statbuf.st_gid; | |
879 | if (!S_ISREG(PL_filemode)) { | |
9b387841 NC |
880 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
881 | "Can't do inplace edit: %s is not a regular file", | |
882 | PL_oldname ); | |
79072805 | 883 | do_close(gv,FALSE); |
c623bd54 LW |
884 | continue; |
885 | } | |
c9930541 | 886 | if (*PL_inplace && strNE(PL_inplace, "*")) { |
2d03de9c | 887 | const char *star = strchr(PL_inplace, '*'); |
2d259d92 | 888 | if (star) { |
2d03de9c | 889 | const char *begin = PL_inplace; |
76f68e9b | 890 | sv_setpvs(sv, ""); |
2d259d92 CK |
891 | do { |
892 | sv_catpvn(sv, begin, star - begin); | |
3280af22 | 893 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 CK |
894 | begin = ++star; |
895 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
896 | if (*begin) |
897 | sv_catpv(sv,begin); | |
2d259d92 CK |
898 | } |
899 | else { | |
3280af22 | 900 | sv_catpv(sv,PL_inplace); |
2d259d92 | 901 | } |
c623bd54 | 902 | #ifndef FLEXFILENAMES |
95a20fc0 | 903 | if ((PerlLIO_stat(SvPVX_const(sv),&PL_statbuf) >= 0 |
5f74f29c JH |
904 | && PL_statbuf.st_dev == filedev |
905 | && PL_statbuf.st_ino == fileino) | |
39e571d4 | 906 | #ifdef DJGPP |
5f74f29c | 907 | || ((_djstat_fail_bits & _STFAIL_TRUENAME)!=0) |
39e571d4 | 908 | #endif |
f248d071 GS |
909 | ) |
910 | { | |
9b387841 NC |
911 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
912 | "Can't do inplace edit: %"SVf" would not be unique", | |
913 | SVfARG(sv)); | |
79072805 | 914 | do_close(gv,FALSE); |
c623bd54 LW |
915 | continue; |
916 | } | |
917 | #endif | |
fe14fcc3 | 918 | #ifdef HAS_RENAME |
739a0b84 | 919 | #if !defined(DOSISH) && !defined(__CYGWIN__) |
95a20fc0 | 920 | if (PerlLIO_rename(PL_oldname,SvPVX_const(sv)) < 0) { |
9b387841 NC |
921 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
922 | "Can't rename %s to %"SVf": %s, skipping file", | |
923 | PL_oldname, SVfARG(sv), Strerror(errno)); | |
79072805 | 924 | do_close(gv,FALSE); |
c623bd54 LW |
925 | continue; |
926 | } | |
a687059c | 927 | #else |
79072805 | 928 | do_close(gv,FALSE); |
95a20fc0 SP |
929 | (void)PerlLIO_unlink(SvPVX_const(sv)); |
930 | (void)PerlLIO_rename(PL_oldname,SvPVX_const(sv)); | |
d5eb9a46 | 931 | do_open_raw(gv, SvPVX_const(sv), SvCUR(sv), O_RDONLY, 0); |
55497cff | 932 | #endif /* DOSISH */ |
ff8e2863 | 933 | #else |
95a20fc0 SP |
934 | (void)UNLINK(SvPVX_const(sv)); |
935 | if (link(PL_oldname,SvPVX_const(sv)) < 0) { | |
9b387841 NC |
936 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
937 | "Can't rename %s to %"SVf": %s, skipping file", | |
938 | PL_oldname, SVfARG(sv), Strerror(errno) ); | |
79072805 | 939 | do_close(gv,FALSE); |
c623bd54 LW |
940 | continue; |
941 | } | |
b28d0864 | 942 | (void)UNLINK(PL_oldname); |
a687059c LW |
943 | #endif |
944 | } | |
945 | else { | |
c030f24b | 946 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 947 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 | 948 | if (UNLINK(PL_oldname) < 0) { |
9b387841 NC |
949 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), |
950 | "Can't remove %s: %s, skipping file", | |
951 | PL_oldname, Strerror(errno) ); | |
79072805 | 952 | do_close(gv,FALSE); |
fe14fcc3 LW |
953 | continue; |
954 | } | |
edc7bc49 | 955 | # endif |
ff8e2863 | 956 | #else |
cea2e8a9 | 957 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 | 958 | #endif |
a687059c LW |
959 | } |
960 | ||
30fc4309 | 961 | sv_setpvn(sv,PL_oldname,oldlen); |
748a9306 | 962 | SETERRNO(0,0); /* in case sprintf set errno */ |
d5eb9a46 NC |
963 | if (!Perl_do_open_raw(aTHX_ PL_argvoutgv, SvPVX_const(sv), |
964 | SvCUR(sv), | |
4119ab01 | 965 | #ifdef VMS |
d5eb9a46 | 966 | O_WRONLY|O_CREAT|O_TRUNC, 0 |
4119ab01 | 967 | #else |
d5eb9a46 | 968 | O_WRONLY|O_CREAT|OPEN_EXCL, 0600 |
4119ab01 | 969 | #endif |
d5eb9a46 | 970 | )) { |
9b387841 NC |
971 | Perl_ck_warner_d(aTHX_ packWARN(WARN_INPLACE), "Can't do inplace edit on %s: %s", |
972 | PL_oldname, Strerror(errno) ); | |
79072805 | 973 | do_close(gv,FALSE); |
fe14fcc3 LW |
974 | continue; |
975 | } | |
3280af22 NIS |
976 | setdefout(PL_argvoutgv); |
977 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); | |
375ed12a JH |
978 | if (PL_lastfd >= 0) { |
979 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); | |
fe14fcc3 | 980 | #ifdef HAS_FCHMOD |
375ed12a | 981 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c | 982 | #else |
375ed12a | 983 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
a687059c | 984 | #endif |
375ed12a | 985 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
b469f1e0 | 986 | /* XXX silently ignore failures */ |
fe14fcc3 | 987 | #ifdef HAS_FCHOWN |
b469f1e0 | 988 | PERL_UNUSED_RESULT(fchown(PL_lastfd,fileuid,filegid)); |
a687059c | 989 | #else |
fe14fcc3 | 990 | #ifdef HAS_CHOWN |
b469f1e0 | 991 | PERL_UNUSED_RESULT(PerlLIO_chown(PL_oldname,fileuid,filegid)); |
a687059c | 992 | #endif |
b1248f16 | 993 | #endif |
375ed12a | 994 | } |
fe14fcc3 | 995 | } |
d8015975 | 996 | return IoIFP(GvIOp(gv)); |
a687059c | 997 | } |
d8015975 NC |
998 | } /* successful do_open_raw(), PL_inplace non-NULL */ |
999 | ||
1000 | if (ckWARN_d(WARN_INPLACE)) { | |
1001 | const int eno = errno; | |
1002 | if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 | |
1003 | && !S_ISREG(PL_statbuf.st_mode)) { | |
1004 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), | |
1005 | "Can't do inplace edit: %s is not a regular file", | |
1006 | PL_oldname); | |
1007 | } | |
1008 | else { | |
1009 | Perl_warner(aTHX_ packWARN(WARN_INPLACE), "Can't open %s: %s", | |
1010 | PL_oldname, Strerror(eno)); | |
1011 | } | |
4d61ec05 | 1012 | } |
a687059c | 1013 | } |
18708f5a GS |
1014 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
1015 | IoFLAGS(io) |= IOf_START; | |
3280af22 NIS |
1016 | if (PL_inplace) { |
1017 | (void)do_close(PL_argvoutgv,FALSE); | |
7a1c5554 GS |
1018 | if (io && (IoFLAGS(io) & IOf_ARGV) |
1019 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) | |
1020 | { | |
159b6efe | 1021 | GV * const oldout = MUTABLE_GV(av_pop(PL_argvout_stack)); |
18708f5a | 1022 | setdefout(oldout); |
8e217d4a | 1023 | SvREFCNT_dec_NN(oldout); |
4608196e | 1024 | return NULL; |
18708f5a | 1025 | } |
fafc274c | 1026 | setdefout(gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO)); |
a687059c | 1027 | } |
4608196e | 1028 | return NULL; |
a687059c LW |
1029 | } |
1030 | ||
517844ec | 1031 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 1032 | bool |
864dbfa3 | 1033 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c | 1034 | { |
1193dd27 IZ |
1035 | bool retval; |
1036 | IO *io; | |
a687059c | 1037 | |
79072805 | 1038 | if (!gv) |
3280af22 | 1039 | gv = PL_argvgv; |
6e592b3a | 1040 | if (!gv || !isGV_with_GP(gv)) { |
1d2dff63 | 1041 | if (not_implicit) |
93189314 | 1042 | SETERRNO(EBADF,SS_IVCHAN); |
c2ab57d4 | 1043 | return FALSE; |
99b89507 | 1044 | } |
79072805 LW |
1045 | io = GvIO(gv); |
1046 | if (!io) { /* never opened */ | |
1d2dff63 | 1047 | if (not_implicit) { |
51087808 | 1048 | report_evil_fh(gv); |
93189314 | 1049 | SETERRNO(EBADF,SS_IVCHAN); |
1d2dff63 | 1050 | } |
a687059c LW |
1051 | return FALSE; |
1052 | } | |
96d7c888 | 1053 | retval = io_close(io, NULL, not_implicit, FALSE); |
517844ec | 1054 | if (not_implicit) { |
1193dd27 IZ |
1055 | IoLINES(io) = 0; |
1056 | IoPAGE(io) = 0; | |
1057 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
1058 | } | |
50952442 | 1059 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 IZ |
1060 | return retval; |
1061 | } | |
1062 | ||
1063 | bool | |
96d7c888 | 1064 | Perl_io_close(pTHX_ IO *io, GV *gv, bool not_implicit, bool warn_on_fail) |
1193dd27 IZ |
1065 | { |
1066 | bool retval = FALSE; | |
1193dd27 | 1067 | |
7918f24d NC |
1068 | PERL_ARGS_ASSERT_IO_CLOSE; |
1069 | ||
8990e307 | 1070 | if (IoIFP(io)) { |
50952442 | 1071 | if (IoTYPE(io) == IoTYPE_PIPE) { |
4373e329 | 1072 | const int status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 | 1073 | if (not_implicit) { |
37038d91 | 1074 | STATUS_NATIVE_CHILD_SET(status); |
e5218da5 | 1075 | retval = (STATUS_UNIX == 0); |
f2b5be74 GS |
1076 | } |
1077 | else { | |
1078 | retval = (status != -1); | |
1079 | } | |
a687059c | 1080 | } |
50952442 | 1081 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c LW |
1082 | retval = TRUE; |
1083 | else { | |
8990e307 | 1084 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
0bcc34c2 | 1085 | const bool prev_err = PerlIO_error(IoOFP(io)); |
f4725fad FC |
1086 | #ifdef USE_PERLIO |
1087 | if (prev_err) | |
1088 | PerlIO_restore_errno(IoOFP(io)); | |
1089 | #endif | |
e199e3be | 1090 | retval = (PerlIO_close(IoOFP(io)) != EOF && !prev_err); |
760ac839 | 1091 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 | 1092 | } |
e199e3be | 1093 | else { |
0bcc34c2 | 1094 | const bool prev_err = PerlIO_error(IoIFP(io)); |
f4725fad FC |
1095 | #ifdef USE_PERLIO |
1096 | if (prev_err) | |
1097 | PerlIO_restore_errno(IoIFP(io)); | |
1098 | #endif | |
e199e3be RGS |
1099 | retval = (PerlIO_close(IoIFP(io)) != EOF && !prev_err); |
1100 | } | |
a687059c | 1101 | } |
4608196e | 1102 | IoOFP(io) = IoIFP(io) = NULL; |
96d7c888 FC |
1103 | |
1104 | if (warn_on_fail && !retval) { | |
1105 | if (gv) | |
1106 | Perl_ck_warner_d(aTHX_ packWARN(WARN_IO), | |
1107 | "Warning: unable to close filehandle %" | |
1108 | HEKf" properly: %"SVf, | |
ac892e4a DM |
1109 | HEKfARG(GvNAME_HEK(gv)), |
1110 | SVfARG(get_sv("!",GV_ADD))); | |
96d7c888 FC |
1111 | else |
1112 | Perl_ck_warner_d(aTHX_ packWARN(WARN_IO), | |
1113 | "Warning: unable to close filehandle " | |
1114 | "properly: %"SVf, | |
ac892e4a | 1115 | SVfARG(get_sv("!",GV_ADD))); |
96d7c888 | 1116 | } |
79072805 | 1117 | } |
f2b5be74 | 1118 | else if (not_implicit) { |
93189314 | 1119 | SETERRNO(EBADF,SS_IVCHAN); |
20408e3c | 1120 | } |
1193dd27 | 1121 | |
a687059c LW |
1122 | return retval; |
1123 | } | |
1124 | ||
1125 | bool | |
864dbfa3 | 1126 | Perl_do_eof(pTHX_ GV *gv) |
a687059c | 1127 | { |
eb578fdb | 1128 | IO * const io = GvIO(gv); |
a687059c | 1129 | |
7918f24d NC |
1130 | PERL_ARGS_ASSERT_DO_EOF; |
1131 | ||
79072805 | 1132 | if (!io) |
a687059c | 1133 | return TRUE; |
7716c5c5 | 1134 | else if (IoTYPE(io) == IoTYPE_WRONLY) |
a5390457 | 1135 | report_wrongway_fh(gv, '>'); |
a687059c | 1136 | |
8990e307 | 1137 | while (IoIFP(io)) { |
760ac839 | 1138 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 | 1139 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 LW |
1140 | return FALSE; /* this is the most usual case */ |
1141 | } | |
a687059c | 1142 | |
79852593 NC |
1143 | { |
1144 | /* getc and ungetc can stomp on errno */ | |
4ee39169 | 1145 | dSAVE_ERRNO; |
79852593 NC |
1146 | const int ch = PerlIO_getc(IoIFP(io)); |
1147 | if (ch != EOF) { | |
1148 | (void)PerlIO_ungetc(IoIFP(io),ch); | |
4ee39169 | 1149 | RESTORE_ERRNO; |
79852593 NC |
1150 | return FALSE; |
1151 | } | |
4ee39169 | 1152 | RESTORE_ERRNO; |
a687059c | 1153 | } |
fab3f3a7 | 1154 | |
760ac839 | 1155 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 JH |
1156 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
1157 | PerlIO_set_cnt(IoIFP(io),-1); | |
760ac839 | 1158 | } |
533c011a | 1159 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
157fb5a1 | 1160 | if (gv != PL_argvgv || !nextargv(gv, FALSE)) /* get another fp handy */ |
a687059c LW |
1161 | return TRUE; |
1162 | } | |
1163 | else | |
1164 | return TRUE; /* normal fp, definitely end of file */ | |
1165 | } | |
1166 | return TRUE; | |
1167 | } | |
1168 | ||
5ff3f7a4 | 1169 | Off_t |
864dbfa3 | 1170 | Perl_do_tell(pTHX_ GV *gv) |
a687059c | 1171 | { |
9c9f25b8 | 1172 | IO *const io = GvIO(gv); |
eb578fdb | 1173 | PerlIO *fp; |
a687059c | 1174 | |
7918f24d NC |
1175 | PERL_ARGS_ASSERT_DO_TELL; |
1176 | ||
9c9f25b8 | 1177 | if (io && (fp = IoIFP(io))) { |
8903cb82 | 1178 | return PerlIO_tell(fp); |
96e4d5b1 | 1179 | } |
51087808 | 1180 | report_evil_fh(gv); |
93189314 | 1181 | SETERRNO(EBADF,RMS_IFI); |
5ff3f7a4 | 1182 | return (Off_t)-1; |
a687059c LW |
1183 | } |
1184 | ||
1185 | bool | |
864dbfa3 | 1186 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c | 1187 | { |
9c9f25b8 | 1188 | IO *const io = GvIO(gv); |
eb578fdb | 1189 | PerlIO *fp; |
a687059c | 1190 | |
9c9f25b8 | 1191 | if (io && (fp = IoIFP(io))) { |
8903cb82 | 1192 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 1193 | } |
51087808 | 1194 | report_evil_fh(gv); |
93189314 | 1195 | SETERRNO(EBADF,RMS_IFI); |
a687059c LW |
1196 | return FALSE; |
1197 | } | |
1198 | ||
97cc44eb | 1199 | Off_t |
864dbfa3 | 1200 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 | 1201 | { |
9c9f25b8 | 1202 | IO *const io = GvIO(gv); |
eb578fdb | 1203 | PerlIO *fp; |
8903cb82 | 1204 | |
7918f24d NC |
1205 | PERL_ARGS_ASSERT_DO_SYSSEEK; |
1206 | ||
375ed12a JH |
1207 | if (io && (fp = IoIFP(io))) { |
1208 | int fd = PerlIO_fileno(fp); | |
07bd88da JH |
1209 | if (fd < 0 || (whence == SEEK_SET && pos < 0)) { |
1210 | SETERRNO(EINVAL,LIB_INVARG); | |
1211 | return -1; | |
1212 | } else { | |
375ed12a JH |
1213 | return PerlLIO_lseek(fd, pos, whence); |
1214 | } | |
1215 | } | |
51087808 | 1216 | report_evil_fh(gv); |
93189314 | 1217 | SETERRNO(EBADF,RMS_IFI); |
d9b3e12d | 1218 | return (Off_t)-1; |
8903cb82 | 1219 | } |
1220 | ||
6ff81951 | 1221 | int |
a79b25b7 | 1222 | Perl_mode_from_discipline(pTHX_ const char *s, STRLEN len) |
16fe6d59 GS |
1223 | { |
1224 | int mode = O_BINARY; | |
81611534 | 1225 | PERL_UNUSED_CONTEXT; |
a79b25b7 | 1226 | if (s) { |
16fe6d59 GS |
1227 | while (*s) { |
1228 | if (*s == ':') { | |
1229 | switch (s[1]) { | |
1230 | case 'r': | |
e963d6d2 | 1231 | if (s[2] == 'a' && s[3] == 'w' |
16fe6d59 GS |
1232 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) |
1233 | { | |
1234 | mode = O_BINARY; | |
1235 | s += 4; | |
1236 | len -= 4; | |
1237 | break; | |
1238 | } | |
924ba076 | 1239 | /* FALLTHROUGH */ |
16fe6d59 | 1240 | case 'c': |
e963d6d2 | 1241 | if (s[2] == 'r' && s[3] == 'l' && s[4] == 'f' |
16fe6d59 GS |
1242 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) |
1243 | { | |
1244 | mode = O_TEXT; | |
1245 | s += 5; | |
1246 | len -= 5; | |
1247 | break; | |
1248 | } | |
924ba076 | 1249 | /* FALLTHROUGH */ |
16fe6d59 GS |
1250 | default: |
1251 | goto fail_discipline; | |
1252 | } | |
1253 | } | |
1254 | else if (isSPACE(*s)) { | |
1255 | ++s; | |
1256 | --len; | |
1257 | } | |
1258 | else { | |
4373e329 | 1259 | const char *end; |
7b52d656 | 1260 | fail_discipline: |
16fe6d59 GS |
1261 | end = strchr(s+1, ':'); |
1262 | if (!end) | |
1263 | end = s+len; | |
60382766 | 1264 | #ifndef PERLIO_LAYERS |
363c40c4 | 1265 | Perl_croak(aTHX_ "IO layers (like '%.*s') unavailable", end-s, s); |
60382766 | 1266 | #else |
18a33fb5 | 1267 | len -= end-s; |
60382766 NIS |
1268 | s = end; |
1269 | #endif | |
16fe6d59 GS |
1270 | } |
1271 | } | |
1272 | } | |
1273 | return mode; | |
1274 | } | |
1275 | ||
58e24eff | 1276 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) |
27da23d5 JH |
1277 | I32 |
1278 | my_chsize(int fd, Off_t length) | |
6eb13c3b | 1279 | { |
58e24eff SH |
1280 | #ifdef F_FREESP |
1281 | /* code courtesy of William Kucharski */ | |
1282 | #define HAS_CHSIZE | |
1283 | ||
c623ac67 | 1284 | Stat_t filebuf; |
6eb13c3b | 1285 | |
3028581b | 1286 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
1287 | return -1; |
1288 | ||
1289 | if (filebuf.st_size < length) { | |
1290 | ||
1291 | /* extend file length */ | |
1292 | ||
3028581b | 1293 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
1294 | return -1; |
1295 | ||
1296 | /* write a "0" byte */ | |
1297 | ||
3028581b | 1298 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
1299 | return -1; |
1300 | } | |
1301 | else { | |
1302 | /* truncate length */ | |
35da51f7 | 1303 | struct flock fl; |
6eb13c3b LW |
1304 | fl.l_whence = 0; |
1305 | fl.l_len = 0; | |
1306 | fl.l_start = length; | |
a0d0e21e | 1307 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
1308 | |
1309 | /* | |
a0d0e21e | 1310 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
1311 | * fcntl(2), which truncates the file so that it ends at the |
1312 | * position indicated by fl.l_start. | |
1313 | * | |
1314 | * Will minor miracles never cease? | |
1315 | */ | |
1316 | ||
a0d0e21e | 1317 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
1318 | return -1; |
1319 | ||
1320 | } | |
6eb13c3b | 1321 | return 0; |
58e24eff | 1322 | #else |
27da23d5 | 1323 | Perl_croak_nocontext("truncate not implemented"); |
a0d0e21e | 1324 | #endif /* F_FREESP */ |
27da23d5 | 1325 | return -1; |
58e24eff SH |
1326 | } |
1327 | #endif /* !HAS_TRUNCATE && !HAS_CHSIZE */ | |
ff8e2863 | 1328 | |
a687059c | 1329 | bool |
5aaab254 | 1330 | Perl_do_print(pTHX_ SV *sv, PerlIO *fp) |
a687059c | 1331 | { |
7918f24d NC |
1332 | PERL_ARGS_ASSERT_DO_PRINT; |
1333 | ||
79072805 LW |
1334 | /* assuming fp is checked earlier */ |
1335 | if (!sv) | |
1336 | return TRUE; | |
e9950d3b NC |
1337 | if (SvTYPE(sv) == SVt_IV && SvIOK(sv)) { |
1338 | assert(!SvGMAGICAL(sv)); | |
1339 | if (SvIsUV(sv)) | |
1340 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); | |
1341 | else | |
1342 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); | |
1343 | return !PerlIO_error(fp); | |
1344 | } | |
1345 | else { | |
1346 | STRLEN len; | |
676f44e7 | 1347 | /* Do this first to trigger any overloading. */ |
e9950d3b NC |
1348 | const char *tmps = SvPV_const(sv, len); |
1349 | U8 *tmpbuf = NULL; | |
1350 | bool happy = TRUE; | |
1351 | ||
d791f93f KW |
1352 | if (PerlIO_isutf8(fp)) { /* If the stream is utf8 ... */ |
1353 | if (!SvUTF8(sv)) { /* Convert to utf8 if necessary */ | |
676f44e7 NC |
1354 | /* We don't modify the original scalar. */ |
1355 | tmpbuf = bytes_to_utf8((const U8*) tmps, &len); | |
1356 | tmps = (char *) tmpbuf; | |
1357 | } | |
a099aed4 | 1358 | else if (ckWARN4_d(WARN_UTF8, WARN_SURROGATE, WARN_NON_UNICODE, WARN_NONCHAR)) { |
0876b9a0 KW |
1359 | (void) check_utf8_print((const U8*) tmps, len); |
1360 | } | |
d791f93f KW |
1361 | } /* else stream isn't utf8 */ |
1362 | else if (DO_UTF8(sv)) { /* But if is utf8 internally, attempt to | |
1363 | convert to bytes */ | |
676f44e7 NC |
1364 | STRLEN tmplen = len; |
1365 | bool utf8 = TRUE; | |
35da51f7 | 1366 | U8 * const result = bytes_from_utf8((const U8*) tmps, &tmplen, &utf8); |
676f44e7 | 1367 | if (!utf8) { |
d791f93f KW |
1368 | |
1369 | /* Here, succeeded in downgrading from utf8. Set up to below | |
1370 | * output the converted value */ | |
676f44e7 NC |
1371 | tmpbuf = result; |
1372 | tmps = (char *) tmpbuf; | |
1373 | len = tmplen; | |
1374 | } | |
d791f93f KW |
1375 | else { /* Non-utf8 output stream, but string only representable in |
1376 | utf8 */ | |
676f44e7 | 1377 | assert((char *)result == tmps); |
9b387841 | 1378 | Perl_ck_warner_d(aTHX_ packWARN(WARN_UTF8), |
21630838 FC |
1379 | "Wide character in %s", |
1380 | PL_op ? OP_DESC(PL_op) : "print" | |
1381 | ); | |
0876b9a0 KW |
1382 | /* Could also check that isn't one of the things to avoid |
1383 | * in utf8 by using check_utf8_print(), but not doing so, | |
1384 | * since the stream isn't a UTF8 stream */ | |
ae798467 NIS |
1385 | } |
1386 | } | |
e9950d3b NC |
1387 | /* To detect whether the process is about to overstep its |
1388 | * filesize limit we would need getrlimit(). We could then | |
1389 | * also transparently raise the limit with setrlimit() -- | |
1390 | * but only until the system hard limit/the filesystem limit, | |
1391 | * at which we would get EPERM. Note that when using buffered | |
1392 | * io the write failure can be delayed until the flush/close. --jhi */ | |
1393 | if (len && (PerlIO_write(fp,tmps,len) == 0)) | |
1394 | happy = FALSE; | |
1395 | Safefree(tmpbuf); | |
1396 | return happy ? !PerlIO_error(fp) : FALSE; | |
ff8e2863 | 1397 | } |
a687059c LW |
1398 | } |
1399 | ||
79072805 | 1400 | I32 |
0d7d409d | 1401 | Perl_my_stat_flags(pTHX_ const U32 flags) |
a687059c | 1402 | { |
39644a26 | 1403 | dSP; |
79072805 | 1404 | IO *io; |
2dd78f96 | 1405 | GV* gv; |
79072805 | 1406 | |
533c011a | 1407 | if (PL_op->op_flags & OPf_REF) { |
2dd78f96 | 1408 | gv = cGVOP_gv; |
748a9306 | 1409 | do_fstat: |
5228a96c SP |
1410 | if (gv == PL_defgv) |
1411 | return PL_laststatval; | |
2dd78f96 | 1412 | io = GvIO(gv); |
ad02613c | 1413 | do_fstat_have_io: |
5228a96c | 1414 | PL_laststype = OP_STAT; |
bd5f6c01 | 1415 | PL_statgv = gv ? gv : (GV *)io; |
76f68e9b | 1416 | sv_setpvs(PL_statname, ""); |
77616968 | 1417 | if (io) { |
5228a96c | 1418 | if (IoIFP(io)) { |
375ed12a | 1419 | int fd = PerlIO_fileno(IoIFP(io)); |
77616968 JH |
1420 | if (fd < 0) { |
1421 | /* E.g. PerlIO::scalar has no real fd. */ | |
1422 | return (PL_laststatval = -1); | |
1423 | } else { | |
375ed12a JH |
1424 | return (PL_laststatval = PerlLIO_fstat(fd, &PL_statcache)); |
1425 | } | |
5228a96c | 1426 | } else if (IoDIRP(io)) { |
3497a01f | 1427 | return (PL_laststatval = PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache)); |
5228a96c | 1428 | } |
5228a96c | 1429 | } |
3888144c FC |
1430 | PL_laststatval = -1; |
1431 | report_evil_fh(gv); | |
1432 | return -1; | |
a687059c | 1433 | } |
d2c4d2d1 | 1434 | else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) |
8db8f6b6 FC |
1435 | == OPpFT_STACKED) |
1436 | return PL_laststatval; | |
d2c4d2d1 FC |
1437 | else { |
1438 | SV* const sv = TOPs; | |
4373e329 | 1439 | const char *s; |
4ecd490c | 1440 | STRLEN len; |
094a3eec | 1441 | if ((gv = MAYBE_DEREF_GV_flags(sv,flags))) { |
748a9306 LW |
1442 | goto do_fstat; |
1443 | } | |
ad02613c | 1444 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) { |
a45c7426 | 1445 | io = MUTABLE_IO(SvRV(sv)); |
7f39519f | 1446 | gv = NULL; |
ad02613c SP |
1447 | goto do_fstat_have_io; |
1448 | } | |
748a9306 | 1449 | |
0d7d409d | 1450 | s = SvPV_flags_const(sv, len, flags); |
a0714e2c | 1451 | PL_statgv = NULL; |
4ecd490c | 1452 | sv_setpvn(PL_statname, s, len); |
95a20fc0 | 1453 | s = SvPVX_const(PL_statname); /* s now NUL-terminated */ |
3280af22 NIS |
1454 | PL_laststype = OP_STAT; |
1455 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); | |
7cb3f959 | 1456 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && should_warn_nl(s)) { |
5d37acd6 | 1457 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ |
9014280d | 1458 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); |
5d37acd6 DM |
1459 | GCC_DIAG_RESTORE; |
1460 | } | |
3280af22 | 1461 | return PL_laststatval; |
a687059c LW |
1462 | } |
1463 | } | |
1464 | ||
fbb0b3b3 | 1465 | |
79072805 | 1466 | I32 |
0d7d409d | 1467 | Perl_my_lstat_flags(pTHX_ const U32 flags) |
c623bd54 | 1468 | { |
a1894d81 | 1469 | static const char* const no_prev_lstat = "The stat preceding -l _ wasn't an lstat"; |
39644a26 | 1470 | dSP; |
b16276bb | 1471 | const char *file; |
cd22fad3 | 1472 | SV* const sv = TOPs; |
5840701a | 1473 | bool isio = FALSE; |
533c011a | 1474 | if (PL_op->op_flags & OPf_REF) { |
638eceb6 | 1475 | if (cGVOP_gv == PL_defgv) { |
3280af22 | 1476 | if (PL_laststype != OP_LSTAT) |
0157ef98 | 1477 | Perl_croak(aTHX_ "%s", no_prev_lstat); |
3280af22 | 1478 | return PL_laststatval; |
fe14fcc3 | 1479 | } |
31b139ba | 1480 | PL_laststatval = -1; |
5d3e98de | 1481 | if (ckWARN(WARN_IO)) { |
5840701a | 1482 | /* diag_listed_as: Use of -l on filehandle%s */ |
d0c0e7dd FC |
1483 | Perl_warner(aTHX_ packWARN(WARN_IO), |
1484 | "Use of -l on filehandle %"HEKf, | |
1485 | HEKfARG(GvENAME_HEK(cGVOP_gv))); | |
5d3e98de | 1486 | } |
31b139ba | 1487 | return -1; |
fe14fcc3 | 1488 | } |
8db8f6b6 FC |
1489 | if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) |
1490 | == OPpFT_STACKED) { | |
1f26655e | 1491 | if (PL_laststype != OP_LSTAT) |
0157ef98 | 1492 | Perl_croak(aTHX_ "%s", no_prev_lstat); |
1f26655e | 1493 | return PL_laststatval; |
cd22fad3 | 1494 | } |
c623bd54 | 1495 | |
3280af22 | 1496 | PL_laststype = OP_LSTAT; |
a0714e2c | 1497 | PL_statgv = NULL; |
5840701a FC |
1498 | if ( ( (SvROK(sv) && ( isGV_with_GP(SvRV(sv)) |
1499 | || (isio = SvTYPE(SvRV(sv)) == SVt_PVIO) ) | |
1500 | ) | |
1501 | || isGV_with_GP(sv) | |
1502 | ) | |
1503 | && ckWARN(WARN_IO)) { | |
1504 | if (isio) | |
1505 | /* diag_listed_as: Use of -l on filehandle%s */ | |
1506 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
1507 | "Use of -l on filehandle"); | |
1508 | else | |
1509 | /* diag_listed_as: Use of -l on filehandle%s */ | |
1510 | Perl_warner(aTHX_ packWARN(WARN_IO), | |
1511 | "Use of -l on filehandle %"HEKf, | |
10bafe90 BF |
1512 | HEKfARG(GvENAME_HEK((const GV *) |
1513 | (SvROK(sv) ? SvRV(sv) : sv)))); | |
cd22fad3 RS |
1514 | } |
1515 | file = SvPV_flags_const_nolen(sv, flags); | |
b16276bb VP |
1516 | sv_setpv(PL_statname,file); |
1517 | PL_laststatval = PerlLIO_lstat(file,&PL_statcache); | |
7cb3f959 | 1518 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && should_warn_nl(file)) { |
5d37acd6 DM |
1519 | GCC_DIAG_IGNORE(-Wformat-nonliteral); /* PL_warn_nl is constant */ |
1520 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "lstat"); | |
1521 | GCC_DIAG_RESTORE; | |
1522 | } | |
3280af22 | 1523 | return PL_laststatval; |
c623bd54 LW |
1524 | } |
1525 | ||
a0f2c8ec JD |
1526 | static void |
1527 | S_exec_failed(pTHX_ const char *cmd, int fd, int do_report) | |
1528 | { | |
1529 | const int e = errno; | |
7918f24d | 1530 | PERL_ARGS_ASSERT_EXEC_FAILED; |
a0f2c8ec JD |
1531 | if (ckWARN(WARN_EXEC)) |
1532 | Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't exec \"%s\": %s", | |
1533 | cmd, Strerror(e)); | |
1534 | if (do_report) { | |
b469f1e0 JH |
1535 | /* XXX silently ignore failures */ |
1536 | PERL_UNUSED_RESULT(PerlLIO_write(fd, (void*)&e, sizeof(int))); | |
a0f2c8ec JD |
1537 | PerlLIO_close(fd); |
1538 | } | |
1539 | } | |
1540 | ||
d5a9bfb0 | 1541 | bool |
5aaab254 | 1542 | Perl_do_aexec5(pTHX_ SV *really, SV **mark, SV **sp, |
2aa1486d | 1543 | int fd, int do_report) |
d5a9bfb0 | 1544 | { |
27da23d5 | 1545 | dVAR; |
7918f24d | 1546 | PERL_ARGS_ASSERT_DO_AEXEC5; |
e37778c2 | 1547 | #if defined(__SYMBIAN32__) || defined(__LIBCATAMOUNT__) |
cd39f2b6 JH |
1548 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); |
1549 | #else | |
79072805 | 1550 | if (sp > mark) { |
360ea906 | 1551 | const char **a; |
6136c704 | 1552 | const char *tmps = NULL; |
360ea906 | 1553 | Newx(PL_Argv, sp - mark + 1, const char*); |
c3c5fad7 | 1554 | a = PL_Argv; |
890ce7af | 1555 | |
79072805 LW |
1556 | while (++mark <= sp) { |
1557 | if (*mark) | |
360ea906 | 1558 | *a++ = SvPV_nolen_const(*mark); |
a687059c LW |
1559 | else |
1560 | *a++ = ""; | |
1561 | } | |
6136c704 | 1562 | *a = NULL; |
91b2752f | 1563 | if (really) |
e62f0680 | 1564 | tmps = SvPV_nolen_const(really); |
91b2752f RG |
1565 | if ((!really && *PL_Argv[0] != '/') || |
1566 | (really && *tmps != '/')) /* will execvp use PATH? */ | |
79072805 | 1567 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
b35112e7 | 1568 | PERL_FPU_PRE_EXEC |
91b2752f | 1569 | if (really && *tmps) |
b4748376 | 1570 | PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); |
a687059c | 1571 | else |
b4748376 | 1572 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
b35112e7 | 1573 | PERL_FPU_POST_EXEC |
a0f2c8ec | 1574 | S_exec_failed(aTHX_ (really ? tmps : PL_Argv[0]), fd, do_report); |
a687059c | 1575 | } |
bee1dbe2 | 1576 | do_execfree(); |
cd39f2b6 | 1577 | #endif |
a687059c LW |
1578 | return FALSE; |
1579 | } | |
1580 | ||
fe14fcc3 | 1581 | void |
864dbfa3 | 1582 | Perl_do_execfree(pTHX) |
ff8e2863 | 1583 | { |
43c5f42d | 1584 | Safefree(PL_Argv); |
4608196e | 1585 | PL_Argv = NULL; |
43c5f42d | 1586 | Safefree(PL_Cmd); |
bd61b366 | 1587 | PL_Cmd = NULL; |
ff8e2863 LW |
1588 | } |
1589 | ||
9555a685 | 1590 | #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION |
e446cec8 IZ |
1591 | |
1592 | bool | |
2fbb330f | 1593 | Perl_do_exec3(pTHX_ const char *incmd, int fd, int do_report) |
e446cec8 | 1594 | { |
27da23d5 | 1595 | dVAR; |
eb578fdb KW |
1596 | const char **a; |
1597 | char *s; | |
15db3ae2 | 1598 | char *buf; |
2fbb330f | 1599 | char *cmd; |
2fbb330f | 1600 | /* Make a copy so we can change it */ |
6fca0082 | 1601 | const Size_t cmdlen = strlen(incmd) + 1; |
7918f24d NC |
1602 | |
1603 | PERL_ARGS_ASSERT_DO_EXEC3; | |
1604 | ||
15db3ae2 DM |
1605 | Newx(buf, cmdlen, char); |
1606 | cmd = buf; | |
cfff9797 | 1607 | memcpy(cmd, incmd, cmdlen); |
a687059c | 1608 | |
748a9306 LW |
1609 | while (*cmd && isSPACE(*cmd)) |
1610 | cmd++; | |
1611 | ||
a687059c LW |
1612 | /* save an extra exec if possible */ |
1613 | ||
bf38876a | 1614 | #ifdef CSH |
d05c1ba0 | 1615 | { |
0c19750d | 1616 | char flags[PERL_FLAGS_MAX]; |
d05c1ba0 JH |
1617 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && |
1618 | strnEQ(cmd+PL_cshlen," -c",3)) { | |
28f0d0ec | 1619 | my_strlcpy(flags, "-c", PERL_FLAGS_MAX); |
d05c1ba0 JH |
1620 | s = cmd+PL_cshlen+3; |
1621 | if (*s == 'f') { | |
1622 | s++; | |
28f0d0ec | 1623 | my_strlcat(flags, "f", PERL_FLAGS_MAX - 2); |
d05c1ba0 JH |
1624 | } |
1625 | if (*s == ' ') | |
1626 | s++; | |
1627 | if (*s++ == '\'') { | |
0bcc34c2 | 1628 | char * const ncmd = s; |
d05c1ba0 JH |
1629 | |
1630 | while (*s) | |
1631 | s++; | |
1632 | if (s[-1] == '\n') | |
1633 | *--s = '\0'; | |
1634 | if (s[-1] == '\'') { | |
1635 | *--s = '\0'; | |
b35112e7 | 1636 | PERL_FPU_PRE_EXEC |
7c0dd7ca | 1637 | PerlProc_execl(PL_cshname, "csh", flags, ncmd, (char*)NULL); |
b35112e7 | 1638 | PERL_FPU_POST_EXEC |
d05c1ba0 | 1639 | *s = '\''; |
a0f2c8ec | 1640 | S_exec_failed(aTHX_ PL_cshname, fd, do_report); |
15db3ae2 | 1641 | Safefree(buf); |
d05c1ba0 JH |
1642 | return FALSE; |
1643 | } | |
1644 | } | |
a687059c LW |
1645 | } |
1646 | } | |
bf38876a | 1647 | #endif /* CSH */ |
a687059c LW |
1648 | |
1649 | /* see if there are shell metacharacters in it */ | |
1650 | ||
748a9306 LW |
1651 | if (*cmd == '.' && isSPACE(cmd[1])) |
1652 | goto doshell; | |
1653 | ||
1654 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
1655 | goto doshell; | |
1656 | ||
294b3b39 | 1657 | s = cmd; |
0eb30aeb | 1658 | while (isWORDCHAR(*s)) |
294b3b39 | 1659 | s++; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1660 | if (*s == '=') |
1661 | goto doshell; | |
748a9306 | 1662 | |
a687059c | 1663 | for (s = cmd; *s; s++) { |
d05c1ba0 JH |
1664 | if (*s != ' ' && !isALPHA(*s) && |
1665 | strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { | |
a687059c LW |
1666 | if (*s == '\n' && !s[1]) { |
1667 | *s = '\0'; | |
1668 | break; | |
1669 | } | |
603a98b0 IZ |
1670 | /* handle the 2>&1 construct at the end */ |
1671 | if (*s == '>' && s[1] == '&' && s[2] == '1' | |
1672 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) | |
1673 | && (!s[3] || isSPACE(s[3]))) | |
1674 | { | |
6867be6d | 1675 | const char *t = s + 3; |
603a98b0 IZ |
1676 | |
1677 | while (*t && isSPACE(*t)) | |
1678 | ++t; | |
943bbd07 | 1679 | if (!*t && (PerlLIO_dup2(1,2) != -1)) { |
603a98b0 IZ |
1680 | s[-2] = '\0'; |
1681 | break; | |
1682 | } | |
1683 | } | |
a687059c | 1684 | doshell: |
b35112e7 | 1685 | PERL_FPU_PRE_EXEC |
7c0dd7ca | 1686 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char *)NULL); |
b35112e7 | 1687 | PERL_FPU_POST_EXEC |
a0f2c8ec | 1688 | S_exec_failed(aTHX_ PL_sh_path, fd, do_report); |
15db3ae2 | 1689 | Safefree(buf); |
a687059c LW |
1690 | return FALSE; |
1691 | } | |
1692 | } | |
748a9306 | 1693 | |
360ea906 | 1694 | Newx(PL_Argv, (s - cmd) / 2 + 2, const char*); |
3280af22 NIS |
1695 | PL_Cmd = savepvn(cmd, s-cmd); |
1696 | a = PL_Argv; | |
1697 | for (s = PL_Cmd; *s;) { | |
294b3b39 AL |
1698 | while (isSPACE(*s)) |
1699 | s++; | |
a687059c LW |
1700 | if (*s) |
1701 | *(a++) = s; | |
294b3b39 AL |
1702 | while (*s && !isSPACE(*s)) |
1703 | s++; | |
a687059c LW |
1704 | if (*s) |
1705 | *s++ = '\0'; | |
1706 | } | |
6136c704 | 1707 | *a = NULL; |
3280af22 | 1708 | if (PL_Argv[0]) { |
b35112e7 | 1709 | PERL_FPU_PRE_EXEC |
360ea906 | 1710 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
b35112e7 | 1711 | PERL_FPU_POST_EXEC |
b1248f16 | 1712 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1713 | do_execfree(); |
a687059c | 1714 | goto doshell; |
b1248f16 | 1715 | } |
a0f2c8ec | 1716 | S_exec_failed(aTHX_ PL_Argv[0], fd, do_report); |
a687059c | 1717 | } |
ff8e2863 | 1718 | do_execfree(); |
15db3ae2 | 1719 | Safefree(buf); |
a687059c LW |
1720 | return FALSE; |
1721 | } | |
1722 | ||
6890e559 | 1723 | #endif /* OS2 || WIN32 */ |
760ac839 | 1724 | |
25bbd826 CB |
1725 | #ifdef VMS |
1726 | #include <starlet.h> /* for sys$delprc */ | |
1727 | #endif | |
1728 | ||
79072805 | 1729 | I32 |
5aaab254 | 1730 | Perl_apply(pTHX_ I32 type, SV **mark, SV **sp) |
a687059c | 1731 | { |
eb578fdb KW |
1732 | I32 val; |
1733 | I32 tot = 0; | |
4634a855 | 1734 | const char *const what = PL_op_name[type]; |
5c144d81 | 1735 | const char *s; |
84c7b88c | 1736 | STRLEN len; |
890ce7af | 1737 | SV ** const oldmark = mark; |
885b4b39 | 1738 | bool killgp = FALSE; |
a687059c | 1739 | |
7918f24d NC |
1740 | PERL_ARGS_ASSERT_APPLY; |
1741 | ||
9a9b5ec9 DM |
1742 | PERL_UNUSED_VAR(what); /* may not be used depending on compile options */ |
1743 | ||
1444765e NC |
1744 | /* Doing this ahead of the switch statement preserves the old behaviour, |
1745 | where attempting to use kill as a taint test test would fail on | |
1746 | platforms where kill was not defined. */ | |
1747 | #ifndef HAS_KILL | |
1748 | if (type == OP_KILL) | |
4634a855 | 1749 | Perl_die(aTHX_ PL_no_func, what); |
1444765e NC |
1750 | #endif |
1751 | #ifndef HAS_CHOWN | |
1752 | if (type == OP_CHOWN) | |
4634a855 | 1753 | Perl_die(aTHX_ PL_no_func, what); |
1444765e NC |
1754 | #endif |
1755 | ||
1756 | ||
20408e3c | 1757 | #define APPLY_TAINT_PROPER() \ |
3280af22 | 1758 | STMT_START { \ |
284167a5 | 1759 | if (TAINT_get) { TAINT_PROPER(what); } \ |
873ef191 | 1760 | } STMT_END |
20408e3c GS |
1761 | |
1762 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
284167a5 | 1763 | if (TAINTING_get) { |
463ee0b2 | 1764 | while (++mark <= sp) { |
bbce6d69 | 1765 | if (SvTAINTED(*mark)) { |
1766 | TAINT; | |
1767 | break; | |
1768 | } | |
463ee0b2 LW |
1769 | } |
1770 | mark = oldmark; | |
1771 | } | |
a687059c | 1772 | switch (type) { |
79072805 | 1773 | case OP_CHMOD: |
20408e3c | 1774 | APPLY_TAINT_PROPER(); |
79072805 | 1775 | if (++mark <= sp) { |
4ea561bc | 1776 | val = SvIV(*mark); |
20408e3c GS |
1777 | APPLY_TAINT_PROPER(); |
1778 | tot = sp - mark; | |
79072805 | 1779 | while (++mark <= sp) { |
c4aca7d0 | 1780 | GV* gv; |
2ea1cce7 | 1781 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
c4aca7d0 GA |
1782 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1783 | #ifdef HAS_FCHMOD | |
375ed12a | 1784 | int fd = PerlIO_fileno(IoIFP(GvIOn(gv))); |
c4aca7d0 | 1785 | APPLY_TAINT_PROPER(); |
375ed12a JH |
1786 | if (fd < 0) { |
1787 | SETERRNO(EBADF,RMS_IFI); | |
1788 | tot--; | |
1789 | } else if (fchmod(fd, val)) | |
1790 | tot--; | |
c4aca7d0 | 1791 | #else |
b9c6780e | 1792 | Perl_die(aTHX_ PL_no_func, "fchmod"); |
c4aca7d0 GA |
1793 | #endif |
1794 | } | |
1795 | else { | |
8334cae6 | 1796 | SETERRNO(EBADF,RMS_IFI); |
c4aca7d0 GA |
1797 | tot--; |
1798 | } | |
1799 | } | |
c4aca7d0 | 1800 | else { |
41188aa0 | 1801 | const char *name = SvPV_nomg_const(*mark, len); |
c4aca7d0 | 1802 | APPLY_TAINT_PROPER(); |
41188aa0 | 1803 | if (!IS_SAFE_PATHNAME(name, len, "chmod") || |
c8028aa6 TC |
1804 | PerlLIO_chmod(name, val)) { |
1805 | tot--; | |
1806 | } | |
c4aca7d0 | 1807 | } |
a687059c LW |
1808 | } |
1809 | } | |
1810 | break; | |
fe14fcc3 | 1811 | #ifdef HAS_CHOWN |
79072805 | 1812 | case OP_CHOWN: |
20408e3c | 1813 | APPLY_TAINT_PROPER(); |
79072805 | 1814 | if (sp - mark > 2) { |
eb578fdb | 1815 | I32 val2; |
463ee0b2 LW |
1816 | val = SvIVx(*++mark); |
1817 | val2 = SvIVx(*++mark); | |
20408e3c | 1818 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1819 | tot = sp - mark; |
79072805 | 1820 | while (++mark <= sp) { |
c4aca7d0 | 1821 | GV* gv; |
2ea1cce7 | 1822 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
c4aca7d0 GA |
1823 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
1824 | #ifdef HAS_FCHOWN | |
375ed12a | 1825 | int fd = PerlIO_fileno(IoIFP(GvIOn(gv))); |
c4aca7d0 | 1826 | APPLY_TAINT_PROPER(); |
375ed12a JH |
1827 | if (fd < 0) { |
1828 | SETERRNO(EBADF,RMS_IFI); | |
1829 | tot--; | |
1830 | } else if (fchown(fd, val, val2)) | |
c4aca7d0 GA |
1831 | tot--; |
1832 | #else | |
b9c6780e | 1833 | Perl_die(aTHX_ PL_no_func, "fchown"); |
c4aca7d0 GA |
1834 | #endif |
1835 | } | |
1836 | else { | |
8334cae6 | 1837 | SETERRNO(EBADF,RMS_IFI); |
c4aca7d0 GA |
1838 | tot--; |
1839 | } | |
1840 | } | |
c4aca7d0 | 1841 | else { |
41188aa0 | 1842 | const char *name = SvPV_nomg_const(*mark, len); |
c4aca7d0 | 1843 | APPLY_TAINT_PROPER(); |
41188aa0 | 1844 | if (!IS_SAFE_PATHNAME(name, len, "chown") || |
c8028aa6 | 1845 | PerlLIO_chown(name, val, val2)) { |
c4aca7d0 | 1846 | tot--; |
c8028aa6 | 1847 | } |
c4aca7d0 | 1848 | } |
a687059c LW |
1849 | } |
1850 | } | |
1851 | break; | |
b1248f16 | 1852 | #endif |
a1d180c4 | 1853 | /* |
dd64f1c3 AD |
1854 | XXX Should we make lchown() directly available from perl? |
1855 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1856 | nothing in the core. | |
1857 | --AD 5/1998 | |
1858 | */ | |
fe14fcc3 | 1859 | #ifdef HAS_KILL |
79072805 | 1860 | case OP_KILL: |
20408e3c | 1861 | APPLY_TAINT_PROPER(); |
55497cff | 1862 | if (mark == sp) |
1863 | break; | |
84c7b88c | 1864 | s = SvPVx_const(*++mark, len); |
c2fd40cb DM |
1865 | if (*s == '-' && isALPHA(s[1])) |
1866 | { | |
1867 | s++; | |
1868 | len--; | |
885b4b39 | 1869 | killgp = TRUE; |
c2fd40cb | 1870 | } |
e02bfb16 | 1871 | if (isALPHA(*s)) { |
84c7b88c | 1872 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') { |
79072805 | 1873 | s += 3; |
84c7b88c BF |
1874 | len -= 3; |
1875 | } | |
1876 | if ((val = whichsig_pvn(s, len)) < 0) | |
1877 | Perl_croak(aTHX_ "Unrecognized signal name \"%"SVf"\"", SVfARG(*mark)); | |
79072805 LW |
1878 | } |
1879 | else | |
c2fd40cb | 1880 | { |
4ea561bc | 1881 | val = SvIV(*mark); |
c2fd40cb DM |
1882 | if (val < 0) |
1883 | { | |
885b4b39 | 1884 | killgp = TRUE; |
c2fd40cb DM |
1885 | val = -val; |
1886 | } | |
1887 | } | |
20408e3c GS |
1888 | APPLY_TAINT_PROPER(); |
1889 | tot = sp - mark; | |
3595fcef | 1890 | #ifdef VMS |
1891 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
3595fcef | 1892 | if (val == SIGKILL) { |
3595fcef | 1893 | /* Use native sys$delprc() to insure that target process is |
1894 | * deleted; supervisor-mode images don't pay attention to | |
1895 | * CRTL's emulation of Unix-style signals and kill() | |
1896 | */ | |
1897 | while (++mark <= sp) { | |
5f521955 | 1898 | I32 proc; |
eb578fdb | 1899 | unsigned long int __vmssts; |
8af710eb | 1900 | SvGETMAGIC(*mark); |
e2c0f81f DG |
1901 | if (!(SvIOK(*mark) || SvNOK(*mark) || looks_like_number(*mark))) |
1902 | Perl_croak(aTHX_ "Can't kill a non-numeric process ID"); | |
8af710eb | 1903 | proc = SvIV_nomg(*mark); |
20408e3c | 1904 | APPLY_TAINT_PROPER(); |
3595fcef | 1905 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1906 | tot--; | |
1907 | switch (__vmssts) { | |
1908 | case SS$_NONEXPR: | |
1909 | case SS$_NOSUCHNODE: | |
1910 | SETERRNO(ESRCH,__vmssts); | |
1911 | break; | |
1912 | case SS$_NOPRIV: | |
1913 | SETERRNO(EPERM,__vmssts); | |
1914 | break; | |
1915 | default: | |
1916 | SETERRNO(EVMSERR,__vmssts); | |
1917 | } | |
1918 | } | |
1919 | } | |
8165faea | 1920 | PERL_ASYNC_CHECK(); |
3595fcef | 1921 | break; |
1922 | } | |
1923 | #endif | |
c2fd40cb | 1924 | while (++mark <= sp) { |
60082291 | 1925 | Pid_t proc; |
c2fd40cb | 1926 | SvGETMAGIC(*mark); |
60082291 | 1927 | if (!(SvNIOK(*mark) || looks_like_number(*mark))) |
c2fd40cb DM |
1928 | Perl_croak(aTHX_ "Can't kill a non-numeric process ID"); |
1929 | proc = SvIV_nomg(*mark); | |
c2fd40cb | 1930 | APPLY_TAINT_PROPER(); |
111f73b5 DM |
1931 | #ifdef HAS_KILLPG |
1932 | /* use killpg in preference, as the killpg() wrapper for Win32 | |
1933 | * understands process groups, but the kill() wrapper doesn't */ | |
1934 | if (killgp ? PerlProc_killpg(proc, val) | |
1935 | : PerlProc_kill(proc, val)) | |
1936 | #else | |
1937 | if (PerlProc_kill(killgp ? -proc: proc, val)) | |
1938 | #endif | |
c2fd40cb | 1939 | tot--; |
a687059c | 1940 | } |
8165faea | 1941 | PERL_ASYNC_CHECK(); |
a687059c | 1942 | break; |
b1248f16 | 1943 | #endif |
79072805 | 1944 | case OP_UNLINK: |
20408e3c | 1945 | APPLY_TAINT_PROPER(); |
79072805 LW |
1946 | tot = sp - mark; |
1947 | while (++mark <= sp) { | |
41188aa0 | 1948 | s = SvPV_const(*mark, len); |
20408e3c | 1949 | APPLY_TAINT_PROPER(); |
41188aa0 | 1950 | if (!IS_SAFE_PATHNAME(s, len, "unlink")) { |
c8028aa6 TC |
1951 | tot--; |
1952 | } | |
f0d85c30 | 1953 | else if (PL_unsafe) { |
b8ffc8df | 1954 | if (UNLINK(s)) |
a687059c LW |
1955 | tot--; |
1956 | } | |
1957 | else { /* don't let root wipe out directories without -U */ | |
1dcae8b8 | 1958 | if (PerlLIO_lstat(s,&PL_statbuf) < 0) |
a687059c | 1959 | tot--; |
1dcae8b8 EZ |
1960 | else if (S_ISDIR(PL_statbuf.st_mode)) { |
1961 | tot--; | |
cd52bc19 | 1962 | SETERRNO(EISDIR, SS_NOPRIV); |
1dcae8b8 | 1963 | } |
a687059c | 1964 | else { |
b8ffc8df | 1965 | if (UNLINK(s)) |
a687059c LW |
1966 | tot--; |
1967 | } | |
1968 | } | |
1969 | } | |
1970 | break; | |
e96b369d | 1971 | #if defined(HAS_UTIME) || defined(HAS_FUTIMES) |
79072805 | 1972 | case OP_UTIME: |
20408e3c | 1973 | APPLY_TAINT_PROPER(); |
79072805 | 1974 | if (sp - mark > 2) { |
e96b369d GA |
1975 | #if defined(HAS_FUTIMES) |
1976 | struct timeval utbuf[2]; | |
1977 | void *utbufp = utbuf; | |
1978 | #elif defined(I_UTIME) || defined(VMS) | |
663a0e37 | 1979 | struct utimbuf utbuf; |
07409e01 | 1980 | struct utimbuf *utbufp = &utbuf; |
663a0e37 | 1981 | #else |
a687059c | 1982 | struct { |
dd2821f6 GS |
1983 | Time_t actime; |
1984 | Time_t modtime; | |
a687059c | 1985 | } utbuf; |
07409e01 | 1986 | void *utbufp = &utbuf; |
663a0e37 | 1987 | #endif |
a687059c | 1988 | |
0bcc34c2 AL |
1989 | SV* const accessed = *++mark; |
1990 | SV* const modified = *++mark; | |
c6f7b413 | 1991 | |
6ec06612 SB |
1992 | /* Be like C, and if both times are undefined, let the C |
1993 | * library figure out what to do. This usually means | |
1994 | * "current time". */ | |
c6f7b413 RS |
1995 | |
1996 | if ( accessed == &PL_sv_undef && modified == &PL_sv_undef ) | |
6ec06612 SB |
1997 | utbufp = NULL; |
1998 | else { | |
1999 | Zero(&utbuf, sizeof utbuf, char); | |
e96b369d | 2000 | #ifdef HAS_FUTIMES |
4ea561bc | 2001 | utbuf[0].tv_sec = (long)SvIV(accessed); /* time accessed */ |
e96b369d | 2002 | utbuf[0].tv_usec = 0; |
4ea561bc | 2003 | utbuf[1].tv_sec = (long)SvIV(modified); /* time modified */ |
e96b369d GA |
2004 | utbuf[1].tv_usec = 0; |
2005 | #elif defined(BIG_TIME) | |
4ea561bc NC |
2006 | utbuf.actime = (Time_t)SvNV(accessed); /* time accessed */ |
2007 | utbuf.modtime = (Time_t)SvNV(modified); /* time modified */ | |
517844ec | 2008 | #else |
4ea561bc NC |
2009 | utbuf.actime = (Time_t)SvIV(accessed); /* time accessed */ |
2010 | utbuf.modtime = (Time_t)SvIV(modified); /* time modified */ | |
517844ec | 2011 | #endif |
6ec06612 | 2012 | } |
4373e329 | 2013 | APPLY_TAINT_PROPER(); |
79072805 LW |
2014 | tot = sp - mark; |
2015 | while (++mark <= sp) { | |
e96b369d | 2016 | GV* gv; |
64617da9 | 2017 | if ((gv = MAYBE_DEREF_GV(*mark))) { |
e96b369d GA |
2018 | if (GvIO(gv) && IoIFP(GvIOp(gv))) { |
2019 | #ifdef HAS_FUTIMES | |
375ed12a | 2020 | int fd = PerlIO_fileno(IoIFP(GvIOn(gv))); |
e96b369d | 2021 | APPLY_TAINT_PROPER(); |
375ed12a JH |
2022 | if (fd < 0) { |
2023 | SETERRNO(EBADF,RMS_IFI); | |
2024 | tot--; | |
2025 | } else if (futimes(fd, (struct timeval *) utbufp)) | |
e96b369d GA |
2026 | tot--; |
2027 | #else | |
2028 | Perl_die(aTHX_ PL_no_func, "futimes"); | |
2029 | #endif | |
2030 | } | |
2031 | else { | |
2032 | tot--; | |
2033 | } | |
2034 | } | |
e96b369d | 2035 | else { |
41188aa0 | 2036 | const char * const name = SvPV_nomg_const(*mark, len); |
e96b369d | 2037 | APPLY_TAINT_PROPER(); |
41188aa0 | 2038 | if (!IS_SAFE_PATHNAME(name, len, "utime")) { |
c8028aa6 TC |
2039 | tot--; |
2040 | } | |
2041 | else | |
e96b369d | 2042 | #ifdef HAS_FUTIMES |
8b7231d9 | 2043 | if (utimes(name, (struct timeval *)utbufp)) |
e96b369d GA |
2044 | #else |
2045 | if (PerlLIO_utime(name, utbufp)) | |
2046 | #endif | |
2047 | tot--; | |
2048 | } | |
2049 | ||
a687059c | 2050 | } |
a687059c LW |
2051 | } |
2052 | else | |
79072805 | 2053 | tot = 0; |
a687059c | 2054 | break; |
a0d0e21e | 2055 | #endif |
a687059c LW |
2056 | } |
2057 | return tot; | |
20408e3c | 2058 | |
20408e3c | 2059 | #undef APPLY_TAINT_PROPER |
a687059c LW |
2060 | } |
2061 | ||
2062 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 2063 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae | 2064 | bool |
5aaab254 | 2065 | Perl_cando(pTHX_ Mode_t mode, bool effective, const Stat_t *statbufp) |
ae1951c1 NC |
2066 | /* effective is a flag, true for EUID, or for checking if the effective gid |
2067 | * is in the list of groups returned from getgroups(). | |
2068 | */ | |
a687059c | 2069 | { |
7918f24d | 2070 | PERL_ARGS_ASSERT_CANDO; |
81611534 | 2071 | PERL_UNUSED_CONTEXT; |
7918f24d | 2072 | |
bee1dbe2 | 2073 | #ifdef DOSISH |
fe14fcc3 LW |
2074 | /* [Comments and code from Len Reed] |
2075 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
2076 | * to write-protected files. The execute permission bit is set | |
486ec47a | 2077 | * by the Microsoft C library stat() function for the following: |
fe14fcc3 LW |
2078 | * .exe files |
2079 | * .com files | |
2080 | * .bat files | |
2081 | * directories | |
2082 | * All files and directories are readable. | |
2083 | * Directories and special files, e.g. "CON", cannot be | |
2084 | * write-protected. | |
2085 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
2086 | * bit set in the file system, but DOS permits changes to | |
2087 | * the directory anyway. In addition, all bets are off | |
2088 | * here for networked software, such as Novell and | |
2089 | * Sun's PC-NFS.] | |
2090 | */ | |
2091 | ||
bee1dbe2 LW |
2092 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
2093 | * too so it will actually look into the files for magic numbers | |
2094 | */ | |
7f4774ae | 2095 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 | 2096 | |
55497cff | 2097 | #else /* ! DOSISH */ |
b595cd4b RU |
2098 | # ifdef __CYGWIN__ |
2099 | if (ingroup(544,effective)) { /* member of Administrators */ | |
2100 | # else | |
985213f2 | 2101 | if ((effective ? PerlProc_geteuid() : PerlProc_getuid()) == 0) { /* root is special */ |
b595cd4b | 2102 | # endif |
7f4774ae | 2103 | if (mode == S_IXUSR) { |
c623bd54 | 2104 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c LW |
2105 | return TRUE; |
2106 | } | |
2107 | else | |
2108 | return TRUE; /* root reads and writes anything */ | |
2109 | return FALSE; | |
2110 | } | |
985213f2 | 2111 | if (statbufp->st_uid == (effective ? PerlProc_geteuid() : PerlProc_getuid()) ) { |
7f4774ae | 2112 | if (statbufp->st_mode & mode) |
a687059c LW |
2113 | return TRUE; /* ok as "user" */ |
2114 | } | |
d8eceb89 | 2115 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae | 2116 | if (statbufp->st_mode & mode >> 3) |
a687059c LW |
2117 | return TRUE; /* ok as "group" */ |
2118 | } | |
7f4774ae | 2119 | else if (statbufp->st_mode & mode >> 6) |
a687059c LW |
2120 | return TRUE; /* ok as "other" */ |
2121 | return FALSE; | |
55497cff | 2122 | #endif /* ! DOSISH */ |
a687059c | 2123 | } |
a0d0e21e | 2124 | #endif /* ! VMS */ |
a687059c | 2125 | |
1f676739 | 2126 | static bool |
0da8eb3a | 2127 | S_ingroup(pTHX_ Gid_t testgid, bool effective) |
a687059c | 2128 | { |
81611534 JH |
2129 | #ifndef PERL_IMPLICIT_SYS |
2130 | /* PERL_IMPLICIT_SYS like Win32: getegid() etc. require the context. */ | |
2131 | PERL_UNUSED_CONTEXT; | |
2132 | #endif | |
985213f2 | 2133 | if (testgid == (effective ? PerlProc_getegid() : PerlProc_getgid())) |
a687059c | 2134 | return TRUE; |
fe14fcc3 | 2135 | #ifdef HAS_GETGROUPS |
a687059c | 2136 | { |
331b57bc | 2137 | Groups_t *gary = NULL; |
79072805 | 2138 | I32 anum; |
331b57bc | 2139 | bool rc = FALSE; |
a687059c | 2140 | |
331b57bc | 2141 | anum = getgroups(0, gary); |
375ed12a JH |
2142 | if (anum > 0) { |
2143 | Newx(gary, anum, Groups_t); | |
2144 | anum = getgroups(anum, gary); | |
2145 | while (--anum >= 0) | |
2146 | if (gary[anum] == testgid) { | |
2147 | rc = TRUE; | |
2148 | break; | |
2149 | } | |
331b57bc | 2150 | |
375ed12a JH |
2151 | Safefree(gary); |
2152 | } | |
331b57bc | 2153 | return rc; |
a687059c | 2154 | } |
c685562b | 2155 | #else |
a687059c | 2156 | return FALSE; |
cd39f2b6 | 2157 | #endif |
a687059c | 2158 | } |
c2ab57d4 | 2159 | |
fe14fcc3 | 2160 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 2161 | |
79072805 | 2162 | I32 |
864dbfa3 | 2163 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2164 | { |
0bcc34c2 | 2165 | const key_t key = (key_t)SvNVx(*++mark); |
c3312966 | 2166 | SV *nsv = optype == OP_MSGGET ? NULL : *++mark; |
6867be6d | 2167 | const I32 flags = SvIVx(*++mark); |
294a48e9 | 2168 | |
7918f24d | 2169 | PERL_ARGS_ASSERT_DO_IPCGET; |
294a48e9 | 2170 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2171 | |
748a9306 | 2172 | SETERRNO(0,0); |
c2ab57d4 LW |
2173 | switch (optype) |
2174 | { | |
fe14fcc3 | 2175 | #ifdef HAS_MSG |
79072805 | 2176 | case OP_MSGGET: |
c2ab57d4 | 2177 | return msgget(key, flags); |
e5d73d77 | 2178 | #endif |
fe14fcc3 | 2179 | #ifdef HAS_SEM |
79072805 | 2180 | case OP_SEMGET: |
c3312966 | 2181 | return semget(key, (int) SvIV(nsv), flags); |
e5d73d77 | 2182 | #endif |
fe14fcc3 | 2183 | #ifdef HAS_SHM |
79072805 | 2184 | case OP_SHMGET: |
c3312966 | 2185 | return shmget(key, (size_t) SvUV(nsv), flags); |
e5d73d77 | 2186 | #endif |
fe14fcc3 | 2187 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2188 | default: |
fe13d51d | 2189 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2190 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2191 | #endif |
c2ab57d4 LW |
2192 | } |
2193 | return -1; /* should never happen */ | |
2194 | } | |
2195 | ||
79072805 | 2196 | I32 |
864dbfa3 | 2197 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2198 | { |
c2ab57d4 | 2199 | char *a; |
a0d0e21e | 2200 | I32 ret = -1; |
6867be6d | 2201 | const I32 id = SvIVx(*++mark); |
95b63a38 | 2202 | #ifdef Semctl |
6867be6d | 2203 | const I32 n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; |
95b63a38 | 2204 | #endif |
6867be6d | 2205 | const I32 cmd = SvIVx(*++mark); |
0bcc34c2 AL |
2206 | SV * const astr = *++mark; |
2207 | STRLEN infosize = 0; | |
2208 | I32 getinfo = (cmd == IPC_STAT); | |
c2ab57d4 | 2209 | |
7918f24d | 2210 | PERL_ARGS_ASSERT_DO_IPCCTL; |
0bcc34c2 | 2211 | PERL_UNUSED_ARG(sp); |
c2ab57d4 LW |
2212 | |
2213 | switch (optype) | |
2214 | { | |
fe14fcc3 | 2215 | #ifdef HAS_MSG |
79072805 | 2216 | case OP_MSGCTL: |
c2ab57d4 LW |
2217 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2218 | infosize = sizeof(struct msqid_ds); | |
2219 | break; | |
e5d73d77 | 2220 | #endif |
fe14fcc3 | 2221 | #ifdef HAS_SHM |
79072805 | 2222 | case OP_SHMCTL: |
c2ab57d4 LW |
2223 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2224 | infosize = sizeof(struct shmid_ds); | |
2225 | break; | |
e5d73d77 | 2226 | #endif |
fe14fcc3 | 2227 | #ifdef HAS_SEM |
79072805 | 2228 | case OP_SEMCTL: |
39398f3f | 2229 | #ifdef Semctl |
c2ab57d4 LW |
2230 | if (cmd == IPC_STAT || cmd == IPC_SET) |
2231 | infosize = sizeof(struct semid_ds); | |
2232 | else if (cmd == GETALL || cmd == SETALL) | |
2233 | { | |
8e591e46 | 2234 | struct semid_ds semds; |
bd89102f | 2235 | union semun semun; |
e6f0bdd6 GS |
2236 | #ifdef EXTRA_F_IN_SEMUN_BUF |
2237 | semun.buff = &semds; | |
2238 | #else | |
84902520 | 2239 | semun.buf = &semds; |
e6f0bdd6 | 2240 | #endif |
c2ab57d4 | 2241 | getinfo = (cmd == GETALL); |
9b89d93d GB |
2242 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
2243 | return -1; | |
6e21c824 LW |
2244 | infosize = semds.sem_nsems * sizeof(short); |
2245 | /* "short" is technically wrong but much more portable | |
2246 | than guessing about u_?short(_t)? */ | |
c2ab57d4 | 2247 | } |
39398f3f | 2248 | #else |
fe13d51d | 2249 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2250 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2251 | #endif |
c2ab57d4 | 2252 | break; |
e5d73d77 | 2253 | #endif |
fe14fcc3 | 2254 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 2255 | default: |
fe13d51d | 2256 | /* diag_listed_as: shm%s not implemented */ |
cea2e8a9 | 2257 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 2258 | #endif |
c2ab57d4 LW |
2259 | } |
2260 | ||
2261 | if (infosize) | |
2262 | { | |
2263 | if (getinfo) | |
2264 | { | |
93524f2b | 2265 | SvPV_force_nolen(astr); |
a0d0e21e | 2266 | a = SvGROW(astr, infosize+1); |
c2ab57d4 LW |
2267 | } |
2268 | else | |
2269 | { | |
93524f2b | 2270 | STRLEN len; |
463ee0b2 LW |
2271 | a = SvPV(astr, len); |
2272 | if (len != infosize) | |
cea2e8a9 | 2273 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 JH |
2274 | PL_op_desc[optype], |
2275 | (unsigned long)len, | |
2276 | (long)infosize); | |
c2ab57d4 LW |
2277 | } |
2278 | } | |
2279 | else | |
2280 | { | |
0bcc34c2 | 2281 | const IV i = SvIV(astr); |
56431972 | 2282 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 | 2283 | } |
748a9306 | 2284 | SETERRNO(0,0); |
c2ab57d4 LW |
2285 | switch (optype) |
2286 | { | |
fe14fcc3 | 2287 | #ifdef HAS_MSG |
79072805 | 2288 | case OP_MSGCTL: |
bee1dbe2 | 2289 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 2290 | break; |
e5d73d77 | 2291 | #endif |
fe14fcc3 | 2292 | #ifdef HAS_SEM |
bd89102f | 2293 | case OP_SEMCTL: { |
39398f3f | 2294 | #ifdef Semctl |
bd89102f AD |
2295 | union semun unsemds; |
2296 | ||
64d76282 BC |
2297 | if(cmd == SETVAL) { |
2298 | unsemds.val = PTR2nat(a); | |
2299 | } | |
2300 | else { | |
e6f0bdd6 | 2301 | #ifdef EXTRA_F_IN_SEMUN_BUF |
64d76282 | 2302 | unsemds.buff = (struct semid_ds *)a; |
e6f0bdd6 | 2303 | #else |
64d76282 | 2304 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 | 2305 | #endif |
64d76282 | 2306 | } |
bd89102f | 2307 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f | 2308 | #else |
fe13d51d | 2309 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2310 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 2311 | #endif |
bd89102f | 2312 | } |
c2ab57d4 | 2313 | break; |
e5d73d77 | 2314 | #endif |
fe14fcc3 | 2315 | #ifdef HAS_SHM |
79072805 | 2316 | case OP_SHMCTL: |
bee1dbe2 | 2317 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 2318 | break; |
e5d73d77 | 2319 | #endif |
c2ab57d4 LW |
2320 | } |
2321 | if (getinfo && ret >= 0) { | |
79072805 LW |
2322 | SvCUR_set(astr, infosize); |
2323 | *SvEND(astr) = '\0'; | |
a0d0e21e | 2324 | SvSETMAGIC(astr); |
c2ab57d4 LW |
2325 | } |
2326 | return ret; | |
2327 | } | |
2328 | ||
79072805 | 2329 | I32 |
864dbfa3 | 2330 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2331 | { |
fe14fcc3 | 2332 | #ifdef HAS_MSG |
463ee0b2 | 2333 | STRLEN len; |
6867be6d | 2334 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2335 | SV * const mstr = *++mark; |
2336 | const I32 flags = SvIVx(*++mark); | |
2337 | const char * const mbuf = SvPV_const(mstr, len); | |
2338 | const I32 msize = len - sizeof(long); | |
2339 | ||
7918f24d | 2340 | PERL_ARGS_ASSERT_DO_MSGSND; |
890ce7af | 2341 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2342 | |
0bcc34c2 | 2343 | if (msize < 0) |
cea2e8a9 | 2344 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 | 2345 | SETERRNO(0,0); |
681fb693 JH |
2346 | if (id >= 0 && flags >= 0) { |
2347 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); | |
2348 | } else { | |
2349 | SETERRNO(EINVAL,LIB_INVARG); | |
2350 | return -1; | |
2351 | } | |
e5d73d77 | 2352 | #else |
2d51fa4d RGS |
2353 | PERL_UNUSED_ARG(sp); |
2354 | PERL_UNUSED_ARG(mark); | |
fe13d51d | 2355 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2356 | Perl_croak(aTHX_ "msgsnd not implemented"); |
7c522378 | 2357 | return -1; |
e5d73d77 | 2358 | #endif |
c2ab57d4 LW |
2359 | } |
2360 | ||
79072805 | 2361 | I32 |
864dbfa3 | 2362 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2363 | { |
fe14fcc3 | 2364 | #ifdef HAS_MSG |
c2ab57d4 LW |
2365 | char *mbuf; |
2366 | long mtype; | |
6867be6d | 2367 | I32 msize, flags, ret; |
6867be6d | 2368 | const I32 id = SvIVx(*++mark); |
0bcc34c2 | 2369 | SV * const mstr = *++mark; |
7918f24d NC |
2370 | |
2371 | PERL_ARGS_ASSERT_DO_MSGRCV; | |
890ce7af | 2372 | PERL_UNUSED_ARG(sp); |
79072805 | 2373 | |
c2e66d9e GS |
2374 | /* suppress warning when reading into undef var --jhi */ |
2375 | if (! SvOK(mstr)) | |
76f68e9b | 2376 | sv_setpvs(mstr, ""); |
463ee0b2 LW |
2377 | msize = SvIVx(*++mark); |
2378 | mtype = (long)SvIVx(*++mark); | |
2379 | flags = SvIVx(*++mark); | |
93524f2b | 2380 | SvPV_force_nolen(mstr); |
a0d0e21e | 2381 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); |
a1d180c4 | 2382 | |
748a9306 | 2383 | SETERRNO(0,0); |
d2607e1e JH |
2384 | if (id >= 0 && msize >= 0 && flags >= 0) { |
2385 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); | |
2386 | } else { | |
2387 | SETERRNO(EINVAL,LIB_INVARG); | |
2388 | ret = -1; | |
2389 | } | |
c2ab57d4 | 2390 | if (ret >= 0) { |
79072805 LW |
2391 | SvCUR_set(mstr, sizeof(long)+ret); |
2392 | *SvEND(mstr) = '\0'; | |
41d6edb2 JH |
2393 | /* who knows who has been playing with this message? */ |
2394 | SvTAINTED_on(mstr); | |
c2ab57d4 LW |
2395 | } |
2396 | return ret; | |
e5d73d77 | 2397 | #else |
2d51fa4d RGS |
2398 | PERL_UNUSED_ARG(sp); |
2399 | PERL_UNUSED_ARG(mark); | |
fe13d51d | 2400 | /* diag_listed_as: msg%s not implemented */ |
cea2e8a9 | 2401 | Perl_croak(aTHX_ "msgrcv not implemented"); |
7c522378 | 2402 | return -1; |
e5d73d77 | 2403 | #endif |
c2ab57d4 LW |
2404 | } |
2405 | ||
79072805 | 2406 | I32 |
864dbfa3 | 2407 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 2408 | { |
fe14fcc3 | 2409 | #ifdef HAS_SEM |
463ee0b2 | 2410 | STRLEN opsize; |
6867be6d | 2411 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2412 | SV * const opstr = *++mark; |
2413 | const char * const opbuf = SvPV_const(opstr, opsize); | |
7918f24d NC |
2414 | |
2415 | PERL_ARGS_ASSERT_DO_SEMOP; | |
890ce7af | 2416 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2417 | |
248ff010 NC |
2418 | if (opsize < 3 * SHORTSIZE |
2419 | || (opsize % (3 * SHORTSIZE))) { | |
93189314 | 2420 | SETERRNO(EINVAL,LIB_INVARG); |
c2ab57d4 LW |
2421 | return -1; |
2422 | } | |
748a9306 | 2423 | SETERRNO(0,0); |
248ff010 NC |
2424 | /* We can't assume that sizeof(struct sembuf) == 3 * sizeof(short). */ |
2425 | { | |
6867be6d | 2426 | const int nsops = opsize / (3 * sizeof (short)); |
248ff010 | 2427 | int i = nsops; |
0bcc34c2 | 2428 | short * const ops = (short *) opbuf; |
248ff010 NC |
2429 | short *o = ops; |
2430 | struct sembuf *temps, *t; | |
2431 | I32 result; | |
2432 | ||
a02a5408 | 2433 | Newx (temps, nsops, struct sembuf); |
248ff010 NC |
2434 | t = temps; |
2435 | while (i--) { | |
2436 | t->sem_num = *o++; | |
2437 | t->sem_op = *o++; | |
2438 | t->sem_flg = *o++; | |
2439 | t++; | |
2440 | } | |
2441 | result = semop(id, temps, nsops); | |
248ff010 NC |
2442 | Safefree(temps); |
2443 | return result; | |
2444 | } | |
e5d73d77 | 2445 | #else |
fe13d51d | 2446 | /* diag_listed_as: sem%s not implemented */ |
cea2e8a9 | 2447 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 | 2448 | #endif |
c2ab57d4 LW |
2449 | } |
2450 | ||
79072805 | 2451 | I32 |
864dbfa3 | 2452 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2453 | { |
fe14fcc3 | 2454 | #ifdef HAS_SHM |
4373e329 | 2455 | char *shm; |
c2ab57d4 | 2456 | struct shmid_ds shmds; |
6867be6d | 2457 | const I32 id = SvIVx(*++mark); |
0bcc34c2 AL |
2458 | SV * const mstr = *++mark; |
2459 | const I32 mpos = SvIVx(*++mark); | |
2460 | const I32 msize = SvIVx(*++mark); | |
7918f24d NC |
2461 | |
2462 | PERL_ARGS_ASSERT_DO_SHMIO; | |
890ce7af | 2463 | PERL_UNUSED_ARG(sp); |
c2ab57d4 | 2464 | |
748a9306 | 2465 | SETERRNO(0,0); |
c2ab57d4 LW |
2466 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
2467 | return -1; | |
7f39519f NC |
2468 | if (mpos < 0 || msize < 0 |
2469 | || (size_t)mpos + msize > (size_t)shmds.shm_segsz) { | |
93189314 | 2470 | SETERRNO(EFAULT,SS_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
2471 | return -1; |
2472 | } | |
568fc267 JH |
2473 | if (id >= 0) { |
2474 | shm = (char *)shmat(id, NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); | |
2475 | } else { | |
2476 | SETERRNO(EINVAL,LIB_INVARG); | |
2477 | return -1; | |
2478 | } | |
c2ab57d4 LW |
2479 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2480 | return -1; | |
79072805 | 2481 | if (optype == OP_SHMREAD) { |
c8ae91a8 | 2482 | char *mbuf; |
9f538c04 | 2483 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
b399897d CS |
2484 | SvGETMAGIC(mstr); |
2485 | SvUPGRADE(mstr, SVt_PV); | |
9f538c04 | 2486 | if (! SvOK(mstr)) |
76f68e9b | 2487 | sv_setpvs(mstr, ""); |
af8ff727 | 2488 | SvPOK_only(mstr); |
bb7a0f54 | 2489 | mbuf = SvGROW(mstr, (STRLEN)msize+1); |
a0d0e21e | 2490 | |
bee1dbe2 | 2491 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
2492 | SvCUR_set(mstr, msize); |
2493 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 2494 | SvSETMAGIC(mstr); |
d929ce6f JH |
2495 | /* who knows who has been playing with this shared memory? */ |
2496 | SvTAINTED_on(mstr); | |
c2ab57d4 LW |
2497 | } |
2498 | else { | |
93524f2b | 2499 | STRLEN len; |
c2ab57d4 | 2500 | |
93524f2b | 2501 | const char *mbuf = SvPV_const(mstr, len); |
027aa12d | 2502 | const I32 n = ((I32)len > msize) ? msize : (I32)len; |
bee1dbe2 | 2503 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2504 | if (n < msize) |
bee1dbe2 | 2505 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2506 | } |
2507 | return shmdt(shm); | |
e5d73d77 | 2508 | #else |
fe13d51d | 2509 | /* diag_listed_as: shm%s not implemented */ |
cea2e8a9 | 2510 | Perl_croak(aTHX_ "shm I/O not implemented"); |
7c522378 | 2511 | return -1; |
e5d73d77 | 2512 | #endif |
c2ab57d4 LW |
2513 | } |
2514 | ||
fe14fcc3 | 2515 | #endif /* SYSV IPC */ |
4e35701f | 2516 | |
0d44d22b | 2517 | /* |
ccfc67b7 JH |
2518 | =head1 IO Functions |
2519 | ||
0d44d22b NC |
2520 | =for apidoc start_glob |
2521 | ||
2522 | Function called by C<do_readline> to spawn a glob (or do the glob inside | |
154e47c8 | 2523 | perl on VMS). This code used to be inline, but now perl uses C<File::Glob> |
210b36aa | 2524 | this glob starter is only used by miniperl during the build process. |
0d44d22b | 2525 | Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up. |
fab3f3a7 | 2526 | |
0d44d22b NC |
2527 | =cut |
2528 | */ | |
2529 | ||
2530 | PerlIO * | |
2531 | Perl_start_glob (pTHX_ SV *tmpglob, IO *io) | |
2532 | { | |
561b68a9 | 2533 | SV * const tmpcmd = newSV(0); |
0d44d22b | 2534 | PerlIO *fp; |
41188aa0 TC |
2535 | STRLEN len; |
2536 | const char *s = SvPV(tmpglob, len); | |
7918f24d NC |
2537 | |
2538 | PERL_ARGS_ASSERT_START_GLOB; | |
2539 | ||
41188aa0 | 2540 | if (!IS_SAFE_SYSCALL(s, len, "pattern", "glob")) |
c8028aa6 TC |
2541 | return NULL; |
2542 | ||
0d44d22b NC |
2543 | ENTER; |
2544 | SAVEFREESV(tmpcmd); | |
2545 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
2546 | /* since spawning off a process is a real performance hit */ | |
dca5a913 JM |
2547 | |
2548 | PerlIO * | |
2549 | Perl_vms_start_glob | |
2550 | (pTHX_ SV *tmpglob, | |
2551 | IO *io); | |
2552 | ||
49a7a762 | 2553 | fp = Perl_vms_start_glob(aTHX_ tmpglob, io); |
dca5a913 | 2554 | |
0d44d22b | 2555 | #else /* !VMS */ |
0d44d22b NC |
2556 | #ifdef DOSISH |
2557 | #ifdef OS2 | |
2558 | sv_setpv(tmpcmd, "for a in "); | |
2559 | sv_catsv(tmpcmd, tmpglob); | |
2560 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
2561 | #else | |
2562 | #ifdef DJGPP | |
2563 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
2564 | sv_catsv(tmpcmd, tmpglob); | |
2565 | #else | |
2566 | sv_setpv(tmpcmd, "perlglob "); | |
2567 | sv_catsv(tmpcmd, tmpglob); | |
2568 | sv_catpv(tmpcmd, " |"); | |
2569 | #endif /* !DJGPP */ | |
2570 | #endif /* !OS2 */ | |
2571 | #else /* !DOSISH */ | |
2572 | #if defined(CSH) | |
2573 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); | |
2574 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
2575 | sv_catsv(tmpcmd, tmpglob); | |
2576 | sv_catpv(tmpcmd, "' 2>/dev/null |"); | |
2577 | #else | |
2578 | sv_setpv(tmpcmd, "echo "); | |
2579 | sv_catsv(tmpcmd, tmpglob); | |
0d44d22b | 2580 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
0d44d22b NC |
2581 | #endif /* !CSH */ |
2582 | #endif /* !DOSISH */ | |
93b2dae1 FC |
2583 | { |
2584 | GV * const envgv = gv_fetchpvs("ENV", 0, SVt_PVHV); | |
2585 | SV ** const home = hv_fetchs(GvHV(envgv), "HOME", 0); | |
25018358 | 2586 | SV ** const path = hv_fetchs(GvHV(envgv), "PATH", 0); |
93b2dae1 | 2587 | if (home && *home) SvGETMAGIC(*home); |
25018358 | 2588 | if (path && *path) SvGETMAGIC(*path); |
93b2dae1 FC |
2589 | save_hash(gv_fetchpvs("ENV", 0, SVt_PVHV)); |
2590 | if (home && *home) SvSETMAGIC(*home); | |
25018358 | 2591 | if (path && *path) SvSETMAGIC(*path); |
93b2dae1 | 2592 | } |
d5eb9a46 NC |
2593 | (void)do_open6(PL_last_in_gv, SvPVX_const(tmpcmd), SvCUR(tmpcmd), |
2594 | NULL, NULL, 0); | |
0d44d22b NC |
2595 | fp = IoIFP(io); |
2596 | #endif /* !VMS */ | |
2597 | LEAVE; | |
de7dabb6 TC |
2598 | |
2599 | if (!fp && ckWARN(WARN_GLOB)) { | |
2600 | Perl_warner(aTHX_ packWARN(WARN_GLOB), "glob failed (can't start child: %s)", | |
2601 | Strerror(errno)); | |
2602 | } | |
2603 | ||
0d44d22b NC |
2604 | return fp; |
2605 | } | |
66610fdd RGS |
2606 | |
2607 | /* | |
14d04a33 | 2608 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 2609 | */ |