Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
bc89e66f | 3 | * Copyright (c) 1991-2001, Larry Wall |
a687059c | 4 | * |
6e21c824 LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
a687059c | 7 | * |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "Far below them they saw the white waters pour into a foaming bowl, and | |
12 | * then swirl darkly about a deep oval basin in the rocks, until they found | |
13 | * their way out again through a narrow gate, and flowed away, fuming and | |
14 | * chattering, into calmer and more level reaches." | |
a687059c LW |
15 | */ |
16 | ||
17 | #include "EXTERN.h" | |
864dbfa3 | 18 | #define PERL_IN_DOIO_C |
a687059c LW |
19 | #include "perl.h" |
20 | ||
fe14fcc3 | 21 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
aec308ec | 22 | #ifndef HAS_SEM |
c2ab57d4 | 23 | #include <sys/ipc.h> |
aec308ec | 24 | #endif |
fe14fcc3 | 25 | #ifdef HAS_MSG |
c2ab57d4 | 26 | #include <sys/msg.h> |
e5d73d77 | 27 | #endif |
fe14fcc3 | 28 | #ifdef HAS_SHM |
c2ab57d4 | 29 | #include <sys/shm.h> |
a0d0e21e | 30 | # ifndef HAS_SHMAT_PROTOTYPE |
20ce7b12 | 31 | extern Shmat_t shmat (int, char *, int); |
a0d0e21e | 32 | # endif |
c2ab57d4 | 33 | #endif |
e5d73d77 | 34 | #endif |
c2ab57d4 | 35 | |
663a0e37 | 36 | #ifdef I_UTIME |
3730b96e | 37 | # if defined(_MSC_VER) || defined(__MINGW32__) |
3fe9a6f1 | 38 | # include <sys/utime.h> |
39 | # else | |
40 | # include <utime.h> | |
41 | # endif | |
663a0e37 | 42 | #endif |
85aff577 | 43 | |
85aff577 CS |
44 | #ifdef O_EXCL |
45 | # define OPEN_EXCL O_EXCL | |
46 | #else | |
47 | # define OPEN_EXCL 0 | |
48 | #endif | |
a687059c | 49 | |
76121258 | 50 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
51 | #include <signal.h> | |
52 | #endif | |
53 | ||
a687059c | 54 | bool |
6170680b IZ |
55 | Perl_do_open(pTHX_ GV *gv, register char *name, I32 len, int as_raw, |
56 | int rawmode, int rawperm, PerlIO *supplied_fp) | |
57 | { | |
a567e93b NIS |
58 | return do_openn(gv, name, len, as_raw, rawmode, rawperm, |
59 | supplied_fp, (SV **) NULL, 0); | |
6170680b IZ |
60 | } |
61 | ||
62 | bool | |
63 | Perl_do_open9(pTHX_ GV *gv, register char *name, I32 len, int as_raw, | |
64 | int rawmode, int rawperm, PerlIO *supplied_fp, SV *svs, | |
65 | I32 num_svs) | |
a687059c | 66 | { |
a567e93b NIS |
67 | return do_openn(gv, name, len, as_raw, rawmode, rawperm, |
68 | supplied_fp, &svs, 1); | |
69 | } | |
70 | ||
71 | bool | |
72 | Perl_do_openn(pTHX_ GV *gv, register char *name, I32 len, int as_raw, | |
73 | int rawmode, int rawperm, PerlIO *supplied_fp, SV **svp, | |
74 | I32 num_svs) | |
75 | { | |
a0d0e21e | 76 | register IO *io = GvIOn(gv); |
760ac839 LW |
77 | PerlIO *saveifp = Nullfp; |
78 | PerlIO *saveofp = Nullfp; | |
ee518936 | 79 | int savefd = -1; |
9f37169a | 80 | char savetype = IoTYPE_CLOSED; |
c07a80fd | 81 | int writing = 0; |
760ac839 | 82 | PerlIO *fp; |
c07a80fd | 83 | int fd; |
84 | int result; | |
3500f679 | 85 | bool was_fdopen = FALSE; |
16fe6d59 | 86 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
b931b1d9 | 87 | char *type = NULL; |
ee518936 NIS |
88 | char mode[8]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */ |
89 | SV *namesv; | |
a687059c | 90 | |
b931b1d9 | 91 | Zero(mode,sizeof(mode),char); |
3280af22 | 92 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 93 | |
b931b1d9 | 94 | /* Collect default raw/crlf info from the op */ |
16fe6d59 GS |
95 | if (PL_op && PL_op->op_type == OP_OPEN) { |
96 | /* set up disciplines */ | |
97 | U8 flags = PL_op->op_private; | |
98 | in_raw = (flags & OPpOPEN_IN_RAW); | |
99 | in_crlf = (flags & OPpOPEN_IN_CRLF); | |
100 | out_raw = (flags & OPpOPEN_OUT_RAW); | |
101 | out_crlf = (flags & OPpOPEN_OUT_CRLF); | |
102 | } | |
103 | ||
b931b1d9 | 104 | /* If currently open - close before we re-open */ |
a0d0e21e | 105 | if (IoIFP(io)) { |
760ac839 | 106 | fd = PerlIO_fileno(IoIFP(io)); |
ee518936 NIS |
107 | if (IoTYPE(io) == IoTYPE_STD) { |
108 | /* This is a clone of one of STD* handles */ | |
c2ab57d4 | 109 | result = 0; |
ee518936 NIS |
110 | } |
111 | else if (fd >= 0 && fd <= PL_maxsysfd) { | |
112 | /* This is one of the original STD* handles */ | |
113 | saveifp = IoIFP(io); | |
114 | saveofp = IoOFP(io); | |
8990e307 | 115 | savetype = IoTYPE(io); |
ee518936 NIS |
116 | savefd = fd; |
117 | result = 0; | |
6e21c824 | 118 | } |
50952442 | 119 | else if (IoTYPE(io) == IoTYPE_PIPE) |
3028581b | 120 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 LW |
121 | else if (IoIFP(io) != IoOFP(io)) { |
122 | if (IoOFP(io)) { | |
760ac839 | 123 | result = PerlIO_close(IoOFP(io)); |
6170680b | 124 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 LW |
125 | } |
126 | else | |
760ac839 | 127 | result = PerlIO_close(IoIFP(io)); |
a687059c | 128 | } |
a687059c | 129 | else |
760ac839 | 130 | result = PerlIO_close(IoIFP(io)); |
ee518936 NIS |
131 | if (result == EOF && fd > PL_maxsysfd) { |
132 | /* Why is this not Perl_warn*() call ? */ | |
bf49b057 | 133 | PerlIO_printf(Perl_error_log, |
6170680b IZ |
134 | "Warning: unable to close filehandle %s properly.\n", |
135 | GvENAME(gv)); | |
ee518936 | 136 | } |
8990e307 | 137 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c | 138 | } |
c07a80fd | 139 | |
140 | if (as_raw) { | |
b931b1d9 | 141 | /* sysopen style args, i.e. integer mode and permissions */ |
ee518936 | 142 | STRLEN ix = 0; |
4a7d1889 NIS |
143 | if (num_svs != 0) { |
144 | Perl_croak(aTHX_ "panic:sysopen with multiple args"); | |
145 | } | |
ee518936 | 146 | mode[ix++] = '#'; /* Marker to openn to use numeric "sysopen" */ |
b931b1d9 | 147 | |
09458382 | 148 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
5ff3f7a4 GS |
149 | rawmode |= O_LARGEFILE; |
150 | #endif | |
151 | ||
9d116dd7 JH |
152 | #ifndef O_ACCMODE |
153 | #define O_ACCMODE 3 /* Assume traditional implementation */ | |
154 | #endif | |
5ff3f7a4 | 155 | |
9d116dd7 JH |
156 | switch (result = rawmode & O_ACCMODE) { |
157 | case O_RDONLY: | |
50952442 | 158 | IoTYPE(io) = IoTYPE_RDONLY; |
9d116dd7 JH |
159 | break; |
160 | case O_WRONLY: | |
50952442 | 161 | IoTYPE(io) = IoTYPE_WRONLY; |
9d116dd7 JH |
162 | break; |
163 | case O_RDWR: | |
164 | default: | |
50952442 | 165 | IoTYPE(io) = IoTYPE_RDWR; |
9d116dd7 JH |
166 | break; |
167 | } | |
c07a80fd | 168 | writing = (result > 0); |
9d116dd7 | 169 | |
ee518936 NIS |
170 | if (result == O_RDONLY) { |
171 | mode[ix++] = 'r'; | |
172 | } | |
360e5741 | 173 | #ifdef O_APPEND |
ee518936 NIS |
174 | else if (rawmode & O_APPEND) { |
175 | mode[ix++] = 'a'; | |
176 | if (result != O_WRONLY) | |
177 | mode[ix++] = '+'; | |
178 | } | |
360e5741 | 179 | #endif |
ee518936 NIS |
180 | else { |
181 | if (result == O_WRONLY) | |
182 | mode[ix++] = 'w'; | |
16fe6d59 | 183 | else { |
ee518936 NIS |
184 | mode[ix++] = 'r'; |
185 | mode[ix++] = '+'; | |
16fe6d59 | 186 | } |
c07a80fd | 187 | } |
ee518936 NIS |
188 | if (rawmode & O_BINARY) |
189 | mode[ix++] = 'b'; | |
190 | mode[ix] = '\0'; | |
191 | ||
192 | namesv = sv_2mortal(newSVpvn(name,strlen(name))); | |
193 | num_svs = 1; | |
194 | svp = &namesv; | |
1141d9f8 NIS |
195 | type = Nullch; |
196 | fp = PerlIO_openn(aTHX_ type,mode, -1, rawmode, rawperm, NULL, num_svs, svp); | |
a687059c | 197 | } |
c07a80fd | 198 | else { |
b931b1d9 | 199 | /* Regular (non-sys) open */ |
faecd977 | 200 | char *oname = name; |
faecd977 | 201 | STRLEN olen = len; |
b931b1d9 NIS |
202 | char *tend; |
203 | int dodup = 0; | |
c07a80fd | 204 | |
faecd977 | 205 | type = savepvn(name, len); |
b931b1d9 | 206 | tend = type+len; |
faecd977 | 207 | SAVEFREEPV(type); |
b931b1d9 NIS |
208 | /* Loose trailing white space */ |
209 | while (tend > type && isSPACE(tend[-1])) | |
210 | *tend-- = '\0'; | |
6170680b | 211 | if (num_svs) { |
b931b1d9 | 212 | /* New style explict name, type is just mode and discipline/layer info */ |
fe9745bf | 213 | STRLEN l = 0; |
f6c77cf1 | 214 | name = SvOK(*svp) ? SvPV(*svp, l) : ""; |
faecd977 GS |
215 | len = (I32)l; |
216 | name = savepvn(name, len); | |
217 | SAVEFREEPV(name); | |
b931b1d9 NIS |
218 | /*SUPPRESS 530*/ |
219 | for (; isSPACE(*type); type++) ; | |
6170680b | 220 | } |
faecd977 | 221 | else { |
faecd977 | 222 | name = type; |
b931b1d9 | 223 | len = tend-type; |
faecd977 | 224 | } |
6170680b | 225 | IoTYPE(io) = *type; |
9cbac4c7 | 226 | if ((*type == IoTYPE_RDWR) && ((!num_svs || tend > type+1 && tend[-1] != IoTYPE_PIPE))) { /* scary */ |
6170680b | 227 | mode[1] = *type++; |
c07a80fd | 228 | writing = 1; |
a687059c | 229 | } |
c07a80fd | 230 | |
9f37169a | 231 | if (*type == IoTYPE_PIPE) { |
b931b1d9 NIS |
232 | if (num_svs) { |
233 | if (type[1] != IoTYPE_STD) { | |
234 | unknown_desr: | |
235 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); | |
236 | } | |
237 | type++; | |
6170680b | 238 | } |
c07a80fd | 239 | /*SUPPRESS 530*/ |
b931b1d9 | 240 | for (type++; isSPACE(*type); type++) ; |
faecd977 | 241 | if (!num_svs) { |
6170680b | 242 | name = type; |
b931b1d9 | 243 | len = tend-type; |
faecd977 | 244 | } |
4a7d1889 NIS |
245 | if (*name == '\0') { |
246 | /* command is missing 19990114 */ | |
06eaf0bc | 247 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 | 248 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc GS |
249 | errno = EPIPE; |
250 | goto say_false; | |
251 | } | |
6170680b | 252 | if (strNE(name,"-") || num_svs) |
c07a80fd | 253 | TAINT_ENV(); |
254 | TAINT_PROPER("piped open"); | |
b931b1d9 | 255 | if (!num_svs && name[len-1] == '|') { |
faecd977 | 256 | name[--len] = '\0' ; |
599cee73 | 257 | if (ckWARN(WARN_PIPE)) |
9a7dcd9c | 258 | Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe"); |
7b8d334a | 259 | } |
a1d180c4 | 260 | mode[0] = 'w'; |
c07a80fd | 261 | writing = 1; |
a1d180c4 NIS |
262 | if (out_raw) |
263 | strcat(mode, "b"); | |
264 | else if (out_crlf) | |
265 | strcat(mode, "t"); | |
4a7d1889 NIS |
266 | if (num_svs > 1) { |
267 | fp = PerlProc_popen_list(mode, num_svs, svp); | |
268 | } | |
269 | else { | |
270 | fp = PerlProc_popen(name,mode); | |
271 | } | |
c07a80fd | 272 | } |
9f37169a | 273 | else if (*type == IoTYPE_WRONLY) { |
c07a80fd | 274 | TAINT_PROPER("open"); |
6170680b | 275 | type++; |
9f37169a JH |
276 | if (*type == IoTYPE_WRONLY) { |
277 | /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ | |
50952442 | 278 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b | 279 | type++; |
a0d0e21e | 280 | } |
ee518936 | 281 | else { |
c07a80fd | 282 | mode[0] = 'w'; |
ee518936 | 283 | } |
c07a80fd | 284 | writing = 1; |
285 | ||
16fe6d59 GS |
286 | if (out_raw) |
287 | strcat(mode, "b"); | |
288 | else if (out_crlf) | |
289 | strcat(mode, "t"); | |
290 | ||
6170680b | 291 | if (*type == '&') { |
c07a80fd | 292 | duplicity: |
293 | dodup = 1; | |
e620cd72 NIS |
294 | type++; |
295 | if (*type == '=') { | |
c07a80fd | 296 | dodup = 0; |
e620cd72 | 297 | type++; |
4a7d1889 | 298 | } |
ee518936 | 299 | if (!num_svs && !*type && supplied_fp) { |
4a7d1889 | 300 | /* "<+&" etc. is used by typemaps */ |
c07a80fd | 301 | fp = supplied_fp; |
ee518936 | 302 | } |
a0d0e21e | 303 | else { |
e620cd72 NIS |
304 | if (num_svs > 1) { |
305 | Perl_croak(aTHX_ "More than one argument to '%c&' open",IoTYPE(io)); | |
306 | } | |
ee518936 | 307 | if (num_svs && SvIOK(*svp)) { |
e620cd72 | 308 | fd = SvUV(*svp); |
ee518936 | 309 | } |
e620cd72 NIS |
310 | else if (isDIGIT(*type)) { |
311 | /*SUPPRESS 530*/ | |
312 | for (; isSPACE(*type); type++) ; | |
313 | fd = atoi(type); | |
314 | } | |
c07a80fd | 315 | else { |
316 | IO* thatio; | |
e620cd72 NIS |
317 | if (num_svs) { |
318 | thatio = sv_2io(*svp); | |
319 | } | |
320 | else { | |
321 | GV *thatgv; | |
322 | /*SUPPRESS 530*/ | |
323 | for (; isSPACE(*type); type++) ; | |
324 | thatgv = gv_fetchpv(type,FALSE,SVt_PVIO); | |
325 | thatio = GvIO(thatgv); | |
326 | } | |
c07a80fd | 327 | if (!thatio) { |
6e21c824 | 328 | #ifdef EINVAL |
c07a80fd | 329 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 | 330 | #endif |
c07a80fd | 331 | goto say_false; |
332 | } | |
333 | if (IoIFP(thatio)) { | |
54195c32 | 334 | PerlIO *fp = IoIFP(thatio); |
7211d486 JH |
335 | /* Flush stdio buffer before dup. --mjd |
336 | * Unfortunately SEEK_CURing 0 seems to | |
337 | * be optimized away on most platforms; | |
338 | * only Solaris and Linux seem to flush | |
339 | * on that. --jhi */ | |
2c534a3f NC |
340 | #ifdef USE_SFIO |
341 | /* sfio fails to clear error on next | |
342 | sfwrite, contrary to documentation. | |
343 | -- Nick Clark */ | |
344 | if (PerlIO_seek(fp, 0, SEEK_CUR) == -1) | |
345 | PerlIO_clearerr(fp); | |
346 | #endif | |
7211d486 JH |
347 | /* On the other hand, do all platforms |
348 | * take gracefully to flushing a read-only | |
349 | * filehandle? Perhaps we should do | |
350 | * fsetpos(src)+fgetpos(dst)? --nik */ | |
351 | PerlIO_flush(fp); | |
54195c32 | 352 | fd = PerlIO_fileno(fp); |
0759c907 JH |
353 | /* When dup()ing STDIN, STDOUT or STDERR |
354 | * explicitly set appropriate access mode */ | |
355 | if (IoIFP(thatio) == PerlIO_stdout() | |
356 | || IoIFP(thatio) == PerlIO_stderr()) | |
357 | IoTYPE(io) = IoTYPE_WRONLY; | |
358 | else if (IoIFP(thatio) == PerlIO_stdin()) | |
359 | IoTYPE(io) = IoTYPE_RDONLY; | |
360 | /* When dup()ing a socket, say result is | |
361 | * one as well */ | |
362 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) | |
50952442 | 363 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd | 364 | } |
365 | else | |
366 | fd = -1; | |
a0d0e21e | 367 | } |
fec02dd3 | 368 | if (dodup) |
3028581b | 369 | fd = PerlLIO_dup(fd); |
3500f679 RS |
370 | else |
371 | was_fdopen = TRUE; | |
ee518936 | 372 | if (!num_svs) |
1141d9f8 | 373 | type = Nullch; |
ee518936 | 374 | if (!(fp = PerlIO_openn(aTHX_ type,mode,fd,0,0,NULL,num_svs,svp))) { |
c07a80fd | 375 | if (dodup) |
3028581b | 376 | PerlLIO_close(fd); |
faecd977 | 377 | } |
c07a80fd | 378 | } |
ee518936 | 379 | } /* & */ |
c07a80fd | 380 | else { |
4a7d1889 NIS |
381 | if (num_svs > 1) { |
382 | Perl_croak(aTHX_ "More than one argument to '>' open"); | |
383 | } | |
c07a80fd | 384 | /*SUPPRESS 530*/ |
6170680b | 385 | for (; isSPACE(*type); type++) ; |
b931b1d9 NIS |
386 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
387 | /*SUPPRESS 530*/ | |
388 | type++; | |
760ac839 | 389 | fp = PerlIO_stdout(); |
50952442 | 390 | IoTYPE(io) = IoTYPE_STD; |
c07a80fd | 391 | } |
392 | else { | |
ee518936 NIS |
393 | if (!num_svs) { |
394 | namesv = sv_2mortal(newSVpvn(type,strlen(type))); | |
395 | num_svs = 1; | |
396 | svp = &namesv; | |
1141d9f8 | 397 | type = Nullch; |
ee518936 | 398 | } |
6e60e805 | 399 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); |
c07a80fd | 400 | } |
ee518936 | 401 | } /* !& */ |
bf38876a | 402 | } |
9f37169a | 403 | else if (*type == IoTYPE_RDONLY) { |
4a7d1889 NIS |
404 | if (num_svs > 1) { |
405 | Perl_croak(aTHX_ "More than one argument to '<' open"); | |
406 | } | |
c07a80fd | 407 | /*SUPPRESS 530*/ |
6170680b | 408 | for (type++; isSPACE(*type); type++) ; |
bf38876a | 409 | mode[0] = 'r'; |
16fe6d59 GS |
410 | if (in_raw) |
411 | strcat(mode, "b"); | |
412 | else if (in_crlf) | |
413 | strcat(mode, "t"); | |
414 | ||
6170680b | 415 | if (*type == '&') { |
bf38876a | 416 | goto duplicity; |
6170680b | 417 | } |
b931b1d9 NIS |
418 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
419 | /*SUPPRESS 530*/ | |
420 | type++; | |
760ac839 | 421 | fp = PerlIO_stdin(); |
50952442 | 422 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 423 | } |
ee518936 NIS |
424 | else { |
425 | if (!num_svs) { | |
426 | namesv = sv_2mortal(newSVpvn(type,strlen(type))); | |
427 | num_svs = 1; | |
428 | svp = &namesv; | |
1141d9f8 | 429 | type = Nullch; |
ee518936 | 430 | } |
6e60e805 | 431 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); |
ee518936 | 432 | } |
a687059c | 433 | } |
b931b1d9 NIS |
434 | else if ((num_svs && type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || |
435 | (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { | |
6170680b | 436 | if (num_svs) { |
b931b1d9 | 437 | type += 2; /* skip over '-|' */ |
6170680b IZ |
438 | } |
439 | else { | |
b931b1d9 NIS |
440 | *--tend = '\0'; |
441 | while (tend > type && isSPACE(tend[-1])) | |
442 | *--tend = '\0'; | |
6170680b IZ |
443 | /*SUPPRESS 530*/ |
444 | for (; isSPACE(*type); type++) ; | |
445 | name = type; | |
b931b1d9 | 446 | len = tend-type; |
6170680b | 447 | } |
4a7d1889 NIS |
448 | if (*name == '\0') { |
449 | /* command is missing 19990114 */ | |
06eaf0bc | 450 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 | 451 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc GS |
452 | errno = EPIPE; |
453 | goto say_false; | |
454 | } | |
6170680b | 455 | if (strNE(name,"-") || num_svs) |
79072805 LW |
456 | TAINT_ENV(); |
457 | TAINT_PROPER("piped open"); | |
a1d180c4 NIS |
458 | mode[0] = 'r'; |
459 | if (in_raw) | |
460 | strcat(mode, "b"); | |
461 | else if (in_crlf) | |
462 | strcat(mode, "t"); | |
4a7d1889 NIS |
463 | if (num_svs > 1) { |
464 | fp = PerlProc_popen_list(mode,num_svs,svp); | |
465 | } | |
e620cd72 | 466 | else { |
4a7d1889 NIS |
467 | fp = PerlProc_popen(name,mode); |
468 | } | |
50952442 | 469 | IoTYPE(io) = IoTYPE_PIPE; |
a687059c LW |
470 | } |
471 | else { | |
6170680b IZ |
472 | if (num_svs) |
473 | goto unknown_desr; | |
474 | name = type; | |
50952442 | 475 | IoTYPE(io) = IoTYPE_RDONLY; |
99b89507 LW |
476 | /*SUPPRESS 530*/ |
477 | for (; isSPACE(*name); name++) ; | |
88b61e10 NIS |
478 | mode[0] = 'r'; |
479 | if (in_raw) | |
480 | strcat(mode, "b"); | |
481 | else if (in_crlf) | |
482 | strcat(mode, "t"); | |
a687059c | 483 | if (strEQ(name,"-")) { |
760ac839 | 484 | fp = PerlIO_stdin(); |
50952442 | 485 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 486 | } |
16fe6d59 | 487 | else { |
ee518936 NIS |
488 | if (!num_svs) { |
489 | namesv = sv_2mortal(newSVpvn(type,strlen(type))); | |
490 | num_svs = 1; | |
491 | svp = &namesv; | |
1141d9f8 | 492 | type = Nullch; |
ee518936 | 493 | } |
6e60e805 | 494 | fp = PerlIO_openn(aTHX_ type,mode,-1,0,0,NULL,num_svs,svp); |
16fe6d59 | 495 | } |
a687059c LW |
496 | } |
497 | } | |
bee1dbe2 | 498 | if (!fp) { |
50952442 | 499 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) |
cea2e8a9 | 500 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); |
6e21c824 | 501 | goto say_false; |
bee1dbe2 | 502 | } |
a00b5bd3 NIS |
503 | |
504 | if (ckWARN(WARN_IO)) { | |
505 | if ((IoTYPE(io) == IoTYPE_RDONLY) && | |
506 | (fp == PerlIO_stdout() || fp == PerlIO_stderr())) { | |
c5e2d979 JH |
507 | Perl_warner(aTHX_ WARN_IO, |
508 | "Filehandle STD%s opened only for input", | |
509 | (fp == PerlIO_stdout()) ? "OUT" : "ERR"); | |
a00b5bd3 | 510 | } |
ee518936 | 511 | else if ((IoTYPE(io) == IoTYPE_WRONLY) && fp == PerlIO_stdin()) { |
c5e2d979 JH |
512 | Perl_warner(aTHX_ WARN_IO, |
513 | "Filehandle STDIN opened only for output"); | |
a00b5bd3 NIS |
514 | } |
515 | } | |
516 | ||
f6c77cf1 NIS |
517 | if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD && |
518 | /* FIXME: This next term is a hack to avoid fileno on PerlIO::Scalar */ | |
519 | !(num_svs && SvROK(*svp))) { | |
3280af22 | 520 | if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { |
760ac839 | 521 | (void)PerlIO_close(fp); |
6e21c824 | 522 | goto say_false; |
a687059c | 523 | } |
3280af22 | 524 | if (S_ISSOCK(PL_statbuf.st_mode)) |
50952442 | 525 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 LW |
526 | #ifdef HAS_SOCKET |
527 | else if ( | |
c623bd54 | 528 | #ifdef S_IFMT |
3280af22 | 529 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 | 530 | #else |
b28d0864 | 531 | !PL_statbuf.st_mode |
99b89507 | 532 | #endif |
0759c907 JH |
533 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
534 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ | |
535 | ) { /* on OS's that return 0 on fstat()ed pipe */ | |
96827780 MB |
536 | char tmpbuf[256]; |
537 | Sock_size_t buflen = sizeof tmpbuf; | |
3028581b | 538 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e CS |
539 | &buflen) >= 0 |
540 | || errno != ENOTSOCK) | |
50952442 | 541 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ |
99b89507 LW |
542 | /* but some return 0 for streams too, sigh */ |
543 | } | |
bf38876a | 544 | #endif |
a687059c | 545 | } |
6e21c824 | 546 | if (saveifp) { /* must use old fp? */ |
f5b9d040 | 547 | /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR |
24c23ab4 | 548 | then dup the new fileno down |
f5b9d040 | 549 | */ |
6e60e805 | 550 | fd = PerlIO_fileno(fp); |
6e21c824 | 551 | if (saveofp) { |
f5b9d040 | 552 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 553 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 554 | PerlIO_close(saveofp); |
6e21c824 LW |
555 | } |
556 | } | |
6e60e805 | 557 | if (savefd != fd) { |
d8a83dd3 | 558 | Pid_t pid; |
79072805 | 559 | SV *sv; |
bd4a5668 NIS |
560 | if (PerlLIO_dup2(fd, savefd) < 0) { |
561 | (void)PerlIO_close(fp); | |
562 | goto say_false; | |
563 | } | |
d082dcd6 | 564 | #ifdef VMS |
6e60e805 | 565 | if (savefd != PerlIO_fileno(PerlIO_stdin())) { |
d082dcd6 JH |
566 | char newname[FILENAME_MAX+1]; |
567 | if (fgetname(fp, newname)) { | |
fd8cd3a3 DS |
568 | if (fd == PerlIO_fileno(PerlIO_stdout())) Perl_vmssetuserlnm(aTHX_ "SYS$OUTPUT", newname); |
569 | if (fd == PerlIO_fileno(PerlIO_stderr())) Perl_vmssetuserlnm(aTHX_ "SYS$ERROR", newname); | |
d082dcd6 JH |
570 | } |
571 | } | |
572 | #endif | |
4755096e | 573 | LOCK_FDPID_MUTEX; |
6e60e805 | 574 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
a0d0e21e | 575 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 LW |
576 | pid = SvIVX(sv); |
577 | SvIVX(sv) = 0; | |
6e60e805 | 578 | sv = *av_fetch(PL_fdpid,savefd,TRUE); |
4755096e | 579 | UNLOCK_FDPID_MUTEX; |
a0d0e21e | 580 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 | 581 | SvIVX(sv) = pid; |
3500f679 RS |
582 | if (!was_fdopen) |
583 | PerlIO_close(fp); | |
6e21c824 LW |
584 | } |
585 | fp = saveifp; | |
760ac839 | 586 | PerlIO_clearerr(fp); |
6e21c824 | 587 | } |
a0d0e21e | 588 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
a8710ca1 GS |
589 | { |
590 | int save_errno = errno; | |
591 | fd = PerlIO_fileno(fp); | |
592 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ | |
593 | errno = save_errno; | |
594 | } | |
1462b684 | 595 | #endif |
8990e307 | 596 | IoIFP(io) = fp; |
b931b1d9 | 597 | |
684bef36 | 598 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a | 599 | if (writing) { |
50952442 | 600 | if (IoTYPE(io) == IoTYPE_SOCKET |
ee518936 | 601 | || (IoTYPE(io) == IoTYPE_WRONLY && S_ISCHR(PL_statbuf.st_mode)) ) { |
b931b1d9 | 602 | mode[0] = 'w'; |
1141d9f8 | 603 | if (!(IoOFP(io) = PerlIO_openn(aTHX_ type,mode,PerlIO_fileno(fp),0,0,NULL,num_svs,svp))) { |
760ac839 | 604 | PerlIO_close(fp); |
8990e307 | 605 | IoIFP(io) = Nullfp; |
6e21c824 | 606 | goto say_false; |
fe14fcc3 | 607 | } |
1462b684 LW |
608 | } |
609 | else | |
8990e307 | 610 | IoOFP(io) = fp; |
bf38876a | 611 | } |
a687059c | 612 | return TRUE; |
6e21c824 LW |
613 | |
614 | say_false: | |
8990e307 LW |
615 | IoIFP(io) = saveifp; |
616 | IoOFP(io) = saveofp; | |
617 | IoTYPE(io) = savetype; | |
6e21c824 | 618 | return FALSE; |
a687059c LW |
619 | } |
620 | ||
760ac839 | 621 | PerlIO * |
864dbfa3 | 622 | Perl_nextargv(pTHX_ register GV *gv) |
a687059c | 623 | { |
79072805 | 624 | register SV *sv; |
99b89507 | 625 | #ifndef FLEXFILENAMES |
c623bd54 LW |
626 | int filedev; |
627 | int fileino; | |
99b89507 | 628 | #endif |
761237fe JB |
629 | Uid_t fileuid; |
630 | Gid_t filegid; | |
18708f5a | 631 | IO *io = GvIOp(gv); |
fe14fcc3 | 632 | |
3280af22 NIS |
633 | if (!PL_argvoutgv) |
634 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); | |
18708f5a GS |
635 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
636 | IoFLAGS(io) &= ~IOf_START; | |
7a1c5554 GS |
637 | if (PL_inplace) { |
638 | if (!PL_argvout_stack) | |
639 | PL_argvout_stack = newAV(); | |
18708f5a | 640 | av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); |
7a1c5554 | 641 | } |
18708f5a | 642 | } |
3280af22 NIS |
643 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
644 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ | |
fe14fcc3 | 645 | #ifdef HAS_FCHMOD |
3280af22 | 646 | (void)fchmod(PL_lastfd,PL_filemode); |
fe14fcc3 | 647 | #else |
b28d0864 | 648 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 LW |
649 | #endif |
650 | } | |
3280af22 | 651 | PL_filemode = 0; |
79072805 | 652 | while (av_len(GvAV(gv)) >= 0) { |
85aff577 | 653 | STRLEN oldlen; |
79072805 | 654 | sv = av_shift(GvAV(gv)); |
8990e307 | 655 | SAVEFREESV(sv); |
79072805 LW |
656 | sv_setsv(GvSV(gv),sv); |
657 | SvSETMAGIC(GvSV(gv)); | |
3280af22 | 658 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 | 659 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 | 660 | if (PL_inplace) { |
79072805 | 661 | TAINT_PROPER("inplace open"); |
3280af22 | 662 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 | 663 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 664 | return IoIFP(GvIOp(gv)); |
c623bd54 | 665 | } |
99b89507 | 666 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
667 | filedev = PL_statbuf.st_dev; |
668 | fileino = PL_statbuf.st_ino; | |
99b89507 | 669 | #endif |
3280af22 NIS |
670 | PL_filemode = PL_statbuf.st_mode; |
671 | fileuid = PL_statbuf.st_uid; | |
672 | filegid = PL_statbuf.st_gid; | |
673 | if (!S_ISREG(PL_filemode)) { | |
0453d815 PM |
674 | if (ckWARN_d(WARN_INPLACE)) |
675 | Perl_warner(aTHX_ WARN_INPLACE, | |
676 | "Can't do inplace edit: %s is not a regular file", | |
677 | PL_oldname ); | |
79072805 | 678 | do_close(gv,FALSE); |
c623bd54 LW |
679 | continue; |
680 | } | |
3280af22 NIS |
681 | if (*PL_inplace) { |
682 | char *star = strchr(PL_inplace, '*'); | |
2d259d92 | 683 | if (star) { |
3280af22 | 684 | char *begin = PL_inplace; |
2d259d92 CK |
685 | sv_setpvn(sv, "", 0); |
686 | do { | |
687 | sv_catpvn(sv, begin, star - begin); | |
3280af22 | 688 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 CK |
689 | begin = ++star; |
690 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
691 | if (*begin) |
692 | sv_catpv(sv,begin); | |
2d259d92 CK |
693 | } |
694 | else { | |
3280af22 | 695 | sv_catpv(sv,PL_inplace); |
2d259d92 | 696 | } |
c623bd54 | 697 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
698 | if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
699 | && PL_statbuf.st_dev == filedev | |
700 | && PL_statbuf.st_ino == fileino | |
39e571d4 LM |
701 | #ifdef DJGPP |
702 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 | |
703 | #endif | |
f248d071 GS |
704 | ) |
705 | { | |
706 | if (ckWARN_d(WARN_INPLACE)) | |
707 | Perl_warner(aTHX_ WARN_INPLACE, | |
708 | "Can't do inplace edit: %s would not be unique", | |
709 | SvPVX(sv)); | |
79072805 | 710 | do_close(gv,FALSE); |
c623bd54 LW |
711 | continue; |
712 | } | |
713 | #endif | |
fe14fcc3 | 714 | #ifdef HAS_RENAME |
d308986b | 715 | #if !defined(DOSISH) && !defined(__CYGWIN__) |
3280af22 | 716 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 | 717 | if (ckWARN_d(WARN_INPLACE)) |
a1d180c4 | 718 | Perl_warner(aTHX_ WARN_INPLACE, |
0453d815 PM |
719 | "Can't rename %s to %s: %s, skipping file", |
720 | PL_oldname, SvPVX(sv), Strerror(errno) ); | |
79072805 | 721 | do_close(gv,FALSE); |
c623bd54 LW |
722 | continue; |
723 | } | |
a687059c | 724 | #else |
79072805 | 725 | do_close(gv,FALSE); |
3028581b | 726 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 | 727 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 | 728 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff | 729 | #endif /* DOSISH */ |
ff8e2863 | 730 | #else |
463ee0b2 | 731 | (void)UNLINK(SvPVX(sv)); |
b28d0864 | 732 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 PM |
733 | if (ckWARN_d(WARN_INPLACE)) |
734 | Perl_warner(aTHX_ WARN_INPLACE, | |
735 | "Can't rename %s to %s: %s, skipping file", | |
736 | PL_oldname, SvPVX(sv), Strerror(errno) ); | |
79072805 | 737 | do_close(gv,FALSE); |
c623bd54 LW |
738 | continue; |
739 | } | |
b28d0864 | 740 | (void)UNLINK(PL_oldname); |
a687059c LW |
741 | #endif |
742 | } | |
743 | else { | |
a8c18271 | 744 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 745 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 | 746 | if (UNLINK(PL_oldname) < 0) { |
0453d815 PM |
747 | if (ckWARN_d(WARN_INPLACE)) |
748 | Perl_warner(aTHX_ WARN_INPLACE, | |
749 | "Can't remove %s: %s, skipping file", | |
750 | PL_oldname, Strerror(errno) ); | |
79072805 | 751 | do_close(gv,FALSE); |
fe14fcc3 LW |
752 | continue; |
753 | } | |
edc7bc49 | 754 | # endif |
ff8e2863 | 755 | #else |
cea2e8a9 | 756 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 | 757 | #endif |
a687059c LW |
758 | } |
759 | ||
3280af22 NIS |
760 | sv_setpvn(sv,">",!PL_inplace); |
761 | sv_catpvn(sv,PL_oldname,oldlen); | |
748a9306 | 762 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 HM |
763 | #ifdef VMS |
764 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, | |
18708f5a | 765 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) |
4119ab01 | 766 | #else |
3280af22 | 767 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a | 768 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) |
4119ab01 | 769 | #endif |
18708f5a | 770 | { |
0453d815 PM |
771 | if (ckWARN_d(WARN_INPLACE)) |
772 | Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", | |
773 | PL_oldname, Strerror(errno) ); | |
79072805 | 774 | do_close(gv,FALSE); |
fe14fcc3 LW |
775 | continue; |
776 | } | |
3280af22 NIS |
777 | setdefout(PL_argvoutgv); |
778 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); | |
779 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); | |
fe14fcc3 | 780 | #ifdef HAS_FCHMOD |
3280af22 | 781 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c | 782 | #else |
3e3baf6d TB |
783 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
784 | /* Borland runtime creates a readonly file! */ | |
b28d0864 | 785 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d | 786 | # endif |
a687059c | 787 | #endif |
3280af22 | 788 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 | 789 | #ifdef HAS_FCHOWN |
3280af22 | 790 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c | 791 | #else |
fe14fcc3 | 792 | #ifdef HAS_CHOWN |
b28d0864 | 793 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c | 794 | #endif |
b1248f16 | 795 | #endif |
fe14fcc3 | 796 | } |
a687059c | 797 | } |
a0d0e21e | 798 | return IoIFP(GvIOp(gv)); |
a687059c | 799 | } |
4d61ec05 | 800 | else { |
4d61ec05 | 801 | if (ckWARN_d(WARN_INPLACE)) { |
6af84f9f GS |
802 | int eno = errno; |
803 | if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 | |
804 | && !S_ISREG(PL_statbuf.st_mode)) | |
805 | { | |
4d61ec05 GS |
806 | Perl_warner(aTHX_ WARN_INPLACE, |
807 | "Can't do inplace edit: %s is not a regular file", | |
9a7dcd9c | 808 | PL_oldname); |
6af84f9f | 809 | } |
4d61ec05 | 810 | else |
9a7dcd9c | 811 | Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s", |
6af84f9f | 812 | PL_oldname, Strerror(eno)); |
4d61ec05 GS |
813 | } |
814 | } | |
a687059c | 815 | } |
18708f5a GS |
816 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
817 | IoFLAGS(io) |= IOf_START; | |
3280af22 NIS |
818 | if (PL_inplace) { |
819 | (void)do_close(PL_argvoutgv,FALSE); | |
7a1c5554 GS |
820 | if (io && (IoFLAGS(io) & IOf_ARGV) |
821 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) | |
822 | { | |
18708f5a GS |
823 | GV *oldout = (GV*)av_pop(PL_argvout_stack); |
824 | setdefout(oldout); | |
825 | SvREFCNT_dec(oldout); | |
826 | return Nullfp; | |
827 | } | |
4633a7c4 | 828 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
829 | } |
830 | return Nullfp; | |
831 | } | |
832 | ||
fe14fcc3 | 833 | #ifdef HAS_PIPE |
afd9f252 | 834 | void |
864dbfa3 | 835 | Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) |
afd9f252 | 836 | { |
79072805 LW |
837 | register IO *rstio; |
838 | register IO *wstio; | |
afd9f252 LW |
839 | int fd[2]; |
840 | ||
79072805 | 841 | if (!rgv) |
afd9f252 | 842 | goto badexit; |
79072805 | 843 | if (!wgv) |
afd9f252 LW |
844 | goto badexit; |
845 | ||
a0d0e21e LW |
846 | rstio = GvIOn(rgv); |
847 | wstio = GvIOn(wgv); | |
afd9f252 | 848 | |
a0d0e21e | 849 | if (IoIFP(rstio)) |
79072805 | 850 | do_close(rgv,FALSE); |
a0d0e21e | 851 | if (IoIFP(wstio)) |
79072805 | 852 | do_close(wgv,FALSE); |
afd9f252 | 853 | |
3028581b | 854 | if (PerlProc_pipe(fd) < 0) |
afd9f252 | 855 | goto badexit; |
760ac839 LW |
856 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
857 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); | |
8990e307 | 858 | IoIFP(wstio) = IoOFP(wstio); |
50952442 JH |
859 | IoTYPE(rstio) = IoTYPE_RDONLY; |
860 | IoTYPE(wstio) = IoTYPE_WRONLY; | |
8990e307 | 861 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 | 862 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b | 863 | else PerlLIO_close(fd[0]); |
760ac839 | 864 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b | 865 | else PerlLIO_close(fd[1]); |
fe14fcc3 LW |
866 | goto badexit; |
867 | } | |
afd9f252 | 868 | |
3280af22 | 869 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 LW |
870 | return; |
871 | ||
872 | badexit: | |
3280af22 | 873 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 LW |
874 | return; |
875 | } | |
b1248f16 | 876 | #endif |
afd9f252 | 877 | |
517844ec | 878 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 879 | bool |
864dbfa3 | 880 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c | 881 | { |
1193dd27 IZ |
882 | bool retval; |
883 | IO *io; | |
a687059c | 884 | |
79072805 | 885 | if (!gv) |
3280af22 | 886 | gv = PL_argvgv; |
a0d0e21e | 887 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 GS |
888 | if (not_implicit) |
889 | SETERRNO(EBADF,SS$_IVCHAN); | |
c2ab57d4 | 890 | return FALSE; |
99b89507 | 891 | } |
79072805 LW |
892 | io = GvIO(gv); |
893 | if (!io) { /* never opened */ | |
1d2dff63 | 894 | if (not_implicit) { |
2dd78f96 JH |
895 | if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ |
896 | report_evil_fh(gv, io, PL_op->op_type); | |
1d2dff63 GS |
897 | SETERRNO(EBADF,SS$_IVCHAN); |
898 | } | |
a687059c LW |
899 | return FALSE; |
900 | } | |
f2b5be74 | 901 | retval = io_close(io, not_implicit); |
517844ec | 902 | if (not_implicit) { |
1193dd27 IZ |
903 | IoLINES(io) = 0; |
904 | IoPAGE(io) = 0; | |
905 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
906 | } | |
50952442 | 907 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 IZ |
908 | return retval; |
909 | } | |
910 | ||
911 | bool | |
f2b5be74 | 912 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 IZ |
913 | { |
914 | bool retval = FALSE; | |
915 | int status; | |
916 | ||
8990e307 | 917 | if (IoIFP(io)) { |
50952442 | 918 | if (IoTYPE(io) == IoTYPE_PIPE) { |
3028581b | 919 | status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 GS |
920 | if (not_implicit) { |
921 | STATUS_NATIVE_SET(status); | |
922 | retval = (STATUS_POSIX == 0); | |
923 | } | |
924 | else { | |
925 | retval = (status != -1); | |
926 | } | |
a687059c | 927 | } |
50952442 | 928 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c LW |
929 | retval = TRUE; |
930 | else { | |
8990e307 | 931 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 LW |
932 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
933 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
934 | } |
935 | else | |
760ac839 | 936 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c | 937 | } |
8990e307 | 938 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 | 939 | } |
f2b5be74 | 940 | else if (not_implicit) { |
20408e3c GS |
941 | SETERRNO(EBADF,SS$_IVCHAN); |
942 | } | |
1193dd27 | 943 | |
a687059c LW |
944 | return retval; |
945 | } | |
946 | ||
947 | bool | |
864dbfa3 | 948 | Perl_do_eof(pTHX_ GV *gv) |
a687059c | 949 | { |
79072805 | 950 | register IO *io; |
a687059c LW |
951 | int ch; |
952 | ||
79072805 | 953 | io = GvIO(gv); |
a687059c | 954 | |
79072805 | 955 | if (!io) |
a687059c | 956 | return TRUE; |
a00b5bd3 | 957 | else if (ckWARN(WARN_IO) && (IoTYPE(io) == IoTYPE_WRONLY)) |
af8c498a | 958 | { |
2dd78f96 | 959 | /* integrate to report_evil_fh()? */ |
a1d180c4 | 960 | char *name = NULL; |
2dd78f96 JH |
961 | if (isGV(gv)) { |
962 | SV* sv = sv_newmortal(); | |
963 | gv_efullname4(sv, gv, Nullch, FALSE); | |
964 | name = SvPV_nolen(sv); | |
965 | } | |
966 | if (name && *name) | |
967 | Perl_warner(aTHX_ WARN_IO, | |
968 | "Filehandle %s opened only for output", name); | |
969 | else | |
970 | Perl_warner(aTHX_ WARN_IO, | |
971 | "Filehandle opened only for output"); | |
af8c498a | 972 | } |
a687059c | 973 | |
8990e307 | 974 | while (IoIFP(io)) { |
a687059c | 975 | |
760ac839 | 976 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 | 977 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 LW |
978 | return FALSE; /* this is the most usual case */ |
979 | } | |
a687059c | 980 | |
760ac839 | 981 | ch = PerlIO_getc(IoIFP(io)); |
a687059c | 982 | if (ch != EOF) { |
760ac839 | 983 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c LW |
984 | return FALSE; |
985 | } | |
fab3f3a7 | 986 | |
760ac839 | 987 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 JH |
988 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
989 | PerlIO_set_cnt(IoIFP(io),-1); | |
760ac839 | 990 | } |
533c011a | 991 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
3280af22 | 992 | if (!nextargv(PL_argvgv)) /* get another fp handy */ |
a687059c LW |
993 | return TRUE; |
994 | } | |
995 | else | |
996 | return TRUE; /* normal fp, definitely end of file */ | |
997 | } | |
998 | return TRUE; | |
999 | } | |
1000 | ||
5ff3f7a4 | 1001 | Off_t |
864dbfa3 | 1002 | Perl_do_tell(pTHX_ GV *gv) |
a687059c | 1003 | { |
79072805 | 1004 | register IO *io; |
96e4d5b1 | 1005 | register PerlIO *fp; |
a687059c | 1006 | |
96e4d5b1 | 1007 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 1008 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 | 1009 | if (PerlIO_eof(fp)) |
1010 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 1011 | #endif |
8903cb82 | 1012 | return PerlIO_tell(fp); |
96e4d5b1 | 1013 | } |
411caa50 JH |
1014 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1015 | report_evil_fh(gv, io, PL_op->op_type); | |
748a9306 | 1016 | SETERRNO(EBADF,RMS$_IFI); |
5ff3f7a4 | 1017 | return (Off_t)-1; |
a687059c LW |
1018 | } |
1019 | ||
1020 | bool | |
864dbfa3 | 1021 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c | 1022 | { |
79072805 | 1023 | register IO *io; |
137443ea | 1024 | register PerlIO *fp; |
a687059c | 1025 | |
137443ea | 1026 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 1027 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea | 1028 | if (PerlIO_eof(fp)) |
1029 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 1030 | #endif |
8903cb82 | 1031 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 1032 | } |
411caa50 JH |
1033 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1034 | report_evil_fh(gv, io, PL_op->op_type); | |
748a9306 | 1035 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
1036 | return FALSE; |
1037 | } | |
1038 | ||
97cc44eb | 1039 | Off_t |
864dbfa3 | 1040 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 | 1041 | { |
1042 | register IO *io; | |
1043 | register PerlIO *fp; | |
1044 | ||
1045 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) | |
3028581b | 1046 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
411caa50 JH |
1047 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1048 | report_evil_fh(gv, io, PL_op->op_type); | |
8903cb82 | 1049 | SETERRNO(EBADF,RMS$_IFI); |
d9b3e12d | 1050 | return (Off_t)-1; |
8903cb82 | 1051 | } |
1052 | ||
6ff81951 | 1053 | int |
16fe6d59 GS |
1054 | Perl_mode_from_discipline(pTHX_ SV *discp) |
1055 | { | |
1056 | int mode = O_BINARY; | |
1057 | if (discp) { | |
1058 | STRLEN len; | |
1059 | char *s = SvPV(discp,len); | |
1060 | while (*s) { | |
1061 | if (*s == ':') { | |
1062 | switch (s[1]) { | |
1063 | case 'r': | |
1064 | if (len > 3 && strnEQ(s+1, "raw", 3) | |
1065 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) | |
1066 | { | |
1067 | mode = O_BINARY; | |
1068 | s += 4; | |
1069 | len -= 4; | |
1070 | break; | |
1071 | } | |
1072 | /* FALL THROUGH */ | |
1073 | case 'c': | |
1074 | if (len > 4 && strnEQ(s+1, "crlf", 4) | |
1075 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) | |
1076 | { | |
1077 | mode = O_TEXT; | |
1078 | s += 5; | |
1079 | len -= 5; | |
1080 | break; | |
1081 | } | |
1082 | /* FALL THROUGH */ | |
1083 | default: | |
1084 | goto fail_discipline; | |
1085 | } | |
1086 | } | |
1087 | else if (isSPACE(*s)) { | |
1088 | ++s; | |
1089 | --len; | |
1090 | } | |
1091 | else { | |
1092 | char *end; | |
1093 | fail_discipline: | |
1094 | end = strchr(s+1, ':'); | |
1095 | if (!end) | |
1096 | end = s+len; | |
60382766 | 1097 | #ifndef PERLIO_LAYERS |
16fe6d59 | 1098 | Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s); |
60382766 NIS |
1099 | #else |
1100 | s = end; | |
1101 | #endif | |
16fe6d59 GS |
1102 | } |
1103 | } | |
1104 | } | |
1105 | return mode; | |
1106 | } | |
1107 | ||
1108 | int | |
1109 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode) | |
6ff81951 | 1110 | { |
60382766 NIS |
1111 | /* The old body of this is now in non-LAYER part of perlio.c |
1112 | * This is a stub for any XS code which might have been calling it. | |
1113 | */ | |
1114 | char *name = (O_BINARY != O_TEXT && !(mode & O_BINARY)) ? ":crlf" : ":raw"; | |
1115 | return PerlIO_binmode(aTHX_ fp, iotype, mode, name); | |
6ff81951 GS |
1116 | } |
1117 | ||
a0d0e21e | 1118 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 1119 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 1120 | #define HAS_CHSIZE |
6eb13c3b | 1121 | |
517844ec | 1122 | I32 my_chsize(fd, length) |
79072805 | 1123 | I32 fd; /* file descriptor */ |
85e6fe83 | 1124 | Off_t length; /* length to set file to */ |
6eb13c3b | 1125 | { |
6eb13c3b LW |
1126 | struct flock fl; |
1127 | struct stat filebuf; | |
1128 | ||
3028581b | 1129 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
1130 | return -1; |
1131 | ||
1132 | if (filebuf.st_size < length) { | |
1133 | ||
1134 | /* extend file length */ | |
1135 | ||
3028581b | 1136 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
1137 | return -1; |
1138 | ||
1139 | /* write a "0" byte */ | |
1140 | ||
3028581b | 1141 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
1142 | return -1; |
1143 | } | |
1144 | else { | |
1145 | /* truncate length */ | |
1146 | ||
1147 | fl.l_whence = 0; | |
1148 | fl.l_len = 0; | |
1149 | fl.l_start = length; | |
a0d0e21e | 1150 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
1151 | |
1152 | /* | |
a0d0e21e | 1153 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
1154 | * fcntl(2), which truncates the file so that it ends at the |
1155 | * position indicated by fl.l_start. | |
1156 | * | |
1157 | * Will minor miracles never cease? | |
1158 | */ | |
1159 | ||
a0d0e21e | 1160 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
1161 | return -1; |
1162 | ||
1163 | } | |
1164 | ||
1165 | return 0; | |
1166 | } | |
a0d0e21e | 1167 | #endif /* F_FREESP */ |
ff8e2863 | 1168 | |
a687059c | 1169 | bool |
864dbfa3 | 1170 | Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) |
a687059c LW |
1171 | { |
1172 | register char *tmps; | |
463ee0b2 | 1173 | STRLEN len; |
a687059c | 1174 | |
79072805 LW |
1175 | /* assuming fp is checked earlier */ |
1176 | if (!sv) | |
1177 | return TRUE; | |
3280af22 | 1178 | if (PL_ofmt) { |
8990e307 | 1179 | if (SvGMAGICAL(sv)) |
79072805 | 1180 | mg_get(sv); |
463ee0b2 | 1181 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
65202027 | 1182 | PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); |
760ac839 | 1183 | return !PerlIO_error(fp); |
79072805 | 1184 | } |
463ee0b2 | 1185 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 1186 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 | 1187 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 | 1188 | return !PerlIO_error(fp); |
79072805 | 1189 | } |
a687059c | 1190 | } |
79072805 LW |
1191 | switch (SvTYPE(sv)) { |
1192 | case SVt_NULL: | |
411caa50 JH |
1193 | if (ckWARN(WARN_UNINITIALIZED)) |
1194 | report_uninit(); | |
ff8e2863 | 1195 | return TRUE; |
79072805 | 1196 | case SVt_IV: |
a0d0e21e LW |
1197 | if (SvIOK(sv)) { |
1198 | if (SvGMAGICAL(sv)) | |
1199 | mg_get(sv); | |
cf2093f6 | 1200 | if (SvIsUV(sv)) |
57def98f | 1201 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 1202 | else |
57def98f | 1203 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); |
760ac839 | 1204 | return !PerlIO_error(fp); |
a0d0e21e LW |
1205 | } |
1206 | /* FALL THROUGH */ | |
79072805 | 1207 | default: |
7d59b7e4 | 1208 | if (PerlIO_isutf8(fp)) { |
f9a63242 JH |
1209 | if (!SvUTF8(sv)) |
1210 | sv_utf8_upgrade(sv = sv_mortalcopy(sv)); | |
7d59b7e4 | 1211 | } |
ae798467 NIS |
1212 | else if (DO_UTF8(sv)) { |
1213 | if (!sv_utf8_downgrade((sv = sv_mortalcopy(sv)), TRUE)) { | |
1214 | Perl_warner(aTHX_ WARN_UTF8, "Wide character in print"); | |
1215 | } | |
1216 | } | |
f9a63242 | 1217 | tmps = SvPV(sv, len); |
79072805 | 1218 | break; |
ff8e2863 | 1219 | } |
94e4c244 JH |
1220 | /* To detect whether the process is about to overstep its |
1221 | * filesize limit we would need getrlimit(). We could then | |
1222 | * also transparently raise the limit with setrlimit() -- | |
1223 | * but only until the system hard limit/the filesystem limit, | |
c5dd3cdd JH |
1224 | * at which we would get EPERM. Note that when using buffered |
1225 | * io the write failure can be delayed until the flush/close. --jhi */ | |
a21ac455 | 1226 | if (len && (PerlIO_write(fp,tmps,len) == 0)) |
a687059c | 1227 | return FALSE; |
760ac839 | 1228 | return !PerlIO_error(fp); |
a687059c LW |
1229 | } |
1230 | ||
79072805 | 1231 | I32 |
cea2e8a9 | 1232 | Perl_my_stat(pTHX) |
a687059c | 1233 | { |
39644a26 | 1234 | dSP; |
79072805 | 1235 | IO *io; |
2dd78f96 | 1236 | GV* gv; |
79072805 | 1237 | |
533c011a | 1238 | if (PL_op->op_flags & OPf_REF) { |
924508f0 | 1239 | EXTEND(SP,1); |
2dd78f96 | 1240 | gv = cGVOP_gv; |
748a9306 | 1241 | do_fstat: |
2dd78f96 | 1242 | io = GvIO(gv); |
8990e307 | 1243 | if (io && IoIFP(io)) { |
2dd78f96 | 1244 | PL_statgv = gv; |
3280af22 NIS |
1245 | sv_setpv(PL_statname,""); |
1246 | PL_laststype = OP_STAT; | |
1247 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); | |
a687059c LW |
1248 | } |
1249 | else { | |
2dd78f96 | 1250 | if (gv == PL_defgv) |
3280af22 | 1251 | return PL_laststatval; |
2dd78f96 JH |
1252 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1253 | report_evil_fh(gv, io, PL_op->op_type); | |
3280af22 NIS |
1254 | PL_statgv = Nullgv; |
1255 | sv_setpv(PL_statname,""); | |
1256 | return (PL_laststatval = -1); | |
a687059c LW |
1257 | } |
1258 | } | |
1259 | else { | |
748a9306 | 1260 | SV* sv = POPs; |
4b74e3fb | 1261 | char *s; |
2d8e6c8d | 1262 | STRLEN n_a; |
79072805 | 1263 | PUTBACK; |
748a9306 | 1264 | if (SvTYPE(sv) == SVt_PVGV) { |
2dd78f96 | 1265 | gv = (GV*)sv; |
748a9306 LW |
1266 | goto do_fstat; |
1267 | } | |
1268 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
2dd78f96 | 1269 | gv = (GV*)SvRV(sv); |
748a9306 LW |
1270 | goto do_fstat; |
1271 | } | |
1272 | ||
2d8e6c8d | 1273 | s = SvPV(sv, n_a); |
3280af22 NIS |
1274 | PL_statgv = Nullgv; |
1275 | sv_setpv(PL_statname, s); | |
1276 | PL_laststype = OP_STAT; | |
1277 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); | |
599cee73 | 1278 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
cea2e8a9 | 1279 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat"); |
3280af22 | 1280 | return PL_laststatval; |
a687059c LW |
1281 | } |
1282 | } | |
1283 | ||
79072805 | 1284 | I32 |
cea2e8a9 | 1285 | Perl_my_lstat(pTHX) |
c623bd54 | 1286 | { |
39644a26 | 1287 | dSP; |
79072805 | 1288 | SV *sv; |
2d8e6c8d | 1289 | STRLEN n_a; |
533c011a | 1290 | if (PL_op->op_flags & OPf_REF) { |
924508f0 | 1291 | EXTEND(SP,1); |
638eceb6 | 1292 | if (cGVOP_gv == PL_defgv) { |
3280af22 | 1293 | if (PL_laststype != OP_LSTAT) |
cea2e8a9 | 1294 | Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); |
3280af22 | 1295 | return PL_laststatval; |
fe14fcc3 | 1296 | } |
cea2e8a9 | 1297 | Perl_croak(aTHX_ "You can't use -l on a filehandle"); |
fe14fcc3 | 1298 | } |
c623bd54 | 1299 | |
3280af22 NIS |
1300 | PL_laststype = OP_LSTAT; |
1301 | PL_statgv = Nullgv; | |
79072805 LW |
1302 | sv = POPs; |
1303 | PUTBACK; | |
2d8e6c8d | 1304 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
2d8e6c8d | 1305 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
2d8e6c8d | 1306 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
cea2e8a9 | 1307 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat"); |
3280af22 | 1308 | return PL_laststatval; |
c623bd54 LW |
1309 | } |
1310 | ||
a687059c | 1311 | bool |
864dbfa3 | 1312 | Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) |
a687059c | 1313 | { |
d5a9bfb0 IZ |
1314 | return do_aexec5(really, mark, sp, 0, 0); |
1315 | } | |
1316 | ||
1317 | bool | |
2aa1486d GS |
1318 | Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, |
1319 | int fd, int do_report) | |
d5a9bfb0 | 1320 | { |
cd39f2b6 JH |
1321 | #ifdef MACOS_TRADITIONAL |
1322 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); | |
1323 | #else | |
a687059c | 1324 | register char **a; |
a687059c | 1325 | char *tmps; |
2d8e6c8d | 1326 | STRLEN n_a; |
a687059c | 1327 | |
79072805 | 1328 | if (sp > mark) { |
3280af22 NIS |
1329 | New(401,PL_Argv, sp - mark + 1, char*); |
1330 | a = PL_Argv; | |
79072805 LW |
1331 | while (++mark <= sp) { |
1332 | if (*mark) | |
2d8e6c8d | 1333 | *a++ = SvPVx(*mark, n_a); |
a687059c LW |
1334 | else |
1335 | *a++ = ""; | |
1336 | } | |
1337 | *a = Nullch; | |
91b2752f RG |
1338 | if (really) |
1339 | tmps = SvPV(really, n_a); | |
1340 | if ((!really && *PL_Argv[0] != '/') || | |
1341 | (really && *tmps != '/')) /* will execvp use PATH? */ | |
79072805 | 1342 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
91b2752f | 1343 | if (really && *tmps) |
b4748376 | 1344 | PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); |
a687059c | 1345 | else |
b4748376 | 1346 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
599cee73 | 1347 | if (ckWARN(WARN_EXEC)) |
a1d180c4 | 1348 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
91b2752f | 1349 | (really ? tmps : PL_Argv[0]), Strerror(errno)); |
d5a9bfb0 IZ |
1350 | if (do_report) { |
1351 | int e = errno; | |
1352 | ||
1353 | PerlLIO_write(fd, (void*)&e, sizeof(int)); | |
1354 | PerlLIO_close(fd); | |
1355 | } | |
a687059c | 1356 | } |
bee1dbe2 | 1357 | do_execfree(); |
cd39f2b6 | 1358 | #endif |
a687059c LW |
1359 | return FALSE; |
1360 | } | |
1361 | ||
fe14fcc3 | 1362 | void |
864dbfa3 | 1363 | Perl_do_execfree(pTHX) |
ff8e2863 | 1364 | { |
3280af22 NIS |
1365 | if (PL_Argv) { |
1366 | Safefree(PL_Argv); | |
1367 | PL_Argv = Null(char **); | |
ff8e2863 | 1368 | } |
3280af22 NIS |
1369 | if (PL_Cmd) { |
1370 | Safefree(PL_Cmd); | |
1371 | PL_Cmd = Nullch; | |
ff8e2863 LW |
1372 | } |
1373 | } | |
1374 | ||
cd39f2b6 | 1375 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
760ac839 | 1376 | |
a687059c | 1377 | bool |
864dbfa3 | 1378 | Perl_do_exec(pTHX_ char *cmd) |
a687059c | 1379 | { |
e446cec8 IZ |
1380 | return do_exec3(cmd,0,0); |
1381 | } | |
1382 | ||
1383 | bool | |
864dbfa3 | 1384 | Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) |
e446cec8 | 1385 | { |
a687059c LW |
1386 | register char **a; |
1387 | register char *s; | |
a687059c LW |
1388 | char flags[10]; |
1389 | ||
748a9306 LW |
1390 | while (*cmd && isSPACE(*cmd)) |
1391 | cmd++; | |
1392 | ||
a687059c LW |
1393 | /* save an extra exec if possible */ |
1394 | ||
bf38876a | 1395 | #ifdef CSH |
3280af22 | 1396 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { |
a687059c | 1397 | strcpy(flags,"-c"); |
3280af22 | 1398 | s = cmd+PL_cshlen+3; |
a687059c LW |
1399 | if (*s == 'f') { |
1400 | s++; | |
1401 | strcat(flags,"f"); | |
1402 | } | |
1403 | if (*s == ' ') | |
1404 | s++; | |
1405 | if (*s++ == '\'') { | |
1406 | char *ncmd = s; | |
1407 | ||
1408 | while (*s) | |
1409 | s++; | |
1410 | if (s[-1] == '\n') | |
1411 | *--s = '\0'; | |
1412 | if (s[-1] == '\'') { | |
1413 | *--s = '\0'; | |
3280af22 | 1414 | PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
1415 | *s = '\''; |
1416 | return FALSE; | |
1417 | } | |
1418 | } | |
1419 | } | |
bf38876a | 1420 | #endif /* CSH */ |
a687059c LW |
1421 | |
1422 | /* see if there are shell metacharacters in it */ | |
1423 | ||
748a9306 LW |
1424 | if (*cmd == '.' && isSPACE(cmd[1])) |
1425 | goto doshell; | |
1426 | ||
1427 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
1428 | goto doshell; | |
1429 | ||
c170e444 | 1430 | for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1431 | if (*s == '=') |
1432 | goto doshell; | |
748a9306 | 1433 | |
a687059c | 1434 | for (s = cmd; *s; s++) { |
93a17b20 | 1435 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
1436 | if (*s == '\n' && !s[1]) { |
1437 | *s = '\0'; | |
1438 | break; | |
1439 | } | |
603a98b0 IZ |
1440 | /* handle the 2>&1 construct at the end */ |
1441 | if (*s == '>' && s[1] == '&' && s[2] == '1' | |
1442 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) | |
1443 | && (!s[3] || isSPACE(s[3]))) | |
1444 | { | |
1445 | char *t = s + 3; | |
1446 | ||
1447 | while (*t && isSPACE(*t)) | |
1448 | ++t; | |
1449 | if (!*t && (dup2(1,2) != -1)) { | |
1450 | s[-2] = '\0'; | |
1451 | break; | |
1452 | } | |
1453 | } | |
a687059c | 1454 | doshell: |
3280af22 | 1455 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
a687059c LW |
1456 | return FALSE; |
1457 | } | |
1458 | } | |
748a9306 | 1459 | |
3280af22 NIS |
1460 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1461 | PL_Cmd = savepvn(cmd, s-cmd); | |
1462 | a = PL_Argv; | |
1463 | for (s = PL_Cmd; *s;) { | |
99b89507 | 1464 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1465 | if (*s) |
1466 | *(a++) = s; | |
99b89507 | 1467 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1468 | if (*s) |
1469 | *s++ = '\0'; | |
1470 | } | |
1471 | *a = Nullch; | |
3280af22 NIS |
1472 | if (PL_Argv[0]) { |
1473 | PerlProc_execvp(PL_Argv[0],PL_Argv); | |
b1248f16 | 1474 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1475 | do_execfree(); |
a687059c | 1476 | goto doshell; |
b1248f16 | 1477 | } |
d008e5eb | 1478 | { |
e446cec8 IZ |
1479 | int e = errno; |
1480 | ||
d008e5eb | 1481 | if (ckWARN(WARN_EXEC)) |
a1d180c4 | 1482 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
d008e5eb | 1483 | PL_Argv[0], Strerror(errno)); |
e446cec8 IZ |
1484 | if (do_report) { |
1485 | PerlLIO_write(fd, (void*)&e, sizeof(int)); | |
1486 | PerlLIO_close(fd); | |
1487 | } | |
d008e5eb | 1488 | } |
a687059c | 1489 | } |
ff8e2863 | 1490 | do_execfree(); |
a687059c LW |
1491 | return FALSE; |
1492 | } | |
1493 | ||
6890e559 | 1494 | #endif /* OS2 || WIN32 */ |
760ac839 | 1495 | |
79072805 | 1496 | I32 |
864dbfa3 | 1497 | Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) |
a687059c | 1498 | { |
79072805 LW |
1499 | register I32 val; |
1500 | register I32 val2; | |
1501 | register I32 tot = 0; | |
20408e3c | 1502 | char *what; |
a687059c | 1503 | char *s; |
79072805 | 1504 | SV **oldmark = mark; |
2d8e6c8d | 1505 | STRLEN n_a; |
a687059c | 1506 | |
20408e3c | 1507 | #define APPLY_TAINT_PROPER() \ |
3280af22 | 1508 | STMT_START { \ |
17406bd6 | 1509 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 | 1510 | } STMT_END |
20408e3c GS |
1511 | |
1512 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
3280af22 | 1513 | if (PL_tainting) { |
463ee0b2 | 1514 | while (++mark <= sp) { |
bbce6d69 | 1515 | if (SvTAINTED(*mark)) { |
1516 | TAINT; | |
1517 | break; | |
1518 | } | |
463ee0b2 LW |
1519 | } |
1520 | mark = oldmark; | |
1521 | } | |
a687059c | 1522 | switch (type) { |
79072805 | 1523 | case OP_CHMOD: |
20408e3c GS |
1524 | what = "chmod"; |
1525 | APPLY_TAINT_PROPER(); | |
79072805 | 1526 | if (++mark <= sp) { |
463ee0b2 | 1527 | val = SvIVx(*mark); |
20408e3c GS |
1528 | APPLY_TAINT_PROPER(); |
1529 | tot = sp - mark; | |
79072805 | 1530 | while (++mark <= sp) { |
2d8e6c8d | 1531 | char *name = SvPVx(*mark, n_a); |
20408e3c GS |
1532 | APPLY_TAINT_PROPER(); |
1533 | if (PerlLIO_chmod(name, val)) | |
a687059c LW |
1534 | tot--; |
1535 | } | |
1536 | } | |
1537 | break; | |
fe14fcc3 | 1538 | #ifdef HAS_CHOWN |
79072805 | 1539 | case OP_CHOWN: |
20408e3c GS |
1540 | what = "chown"; |
1541 | APPLY_TAINT_PROPER(); | |
79072805 | 1542 | if (sp - mark > 2) { |
463ee0b2 LW |
1543 | val = SvIVx(*++mark); |
1544 | val2 = SvIVx(*++mark); | |
20408e3c | 1545 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1546 | tot = sp - mark; |
79072805 | 1547 | while (++mark <= sp) { |
2d8e6c8d | 1548 | char *name = SvPVx(*mark, n_a); |
20408e3c | 1549 | APPLY_TAINT_PROPER(); |
36660982 | 1550 | if (PerlLIO_chown(name, val, val2)) |
a687059c LW |
1551 | tot--; |
1552 | } | |
1553 | } | |
1554 | break; | |
b1248f16 | 1555 | #endif |
a1d180c4 | 1556 | /* |
dd64f1c3 AD |
1557 | XXX Should we make lchown() directly available from perl? |
1558 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1559 | nothing in the core. | |
1560 | --AD 5/1998 | |
1561 | */ | |
fe14fcc3 | 1562 | #ifdef HAS_KILL |
79072805 | 1563 | case OP_KILL: |
20408e3c GS |
1564 | what = "kill"; |
1565 | APPLY_TAINT_PROPER(); | |
55497cff | 1566 | if (mark == sp) |
1567 | break; | |
2d8e6c8d | 1568 | s = SvPVx(*++mark, n_a); |
79072805 LW |
1569 | if (isUPPER(*s)) { |
1570 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') | |
1571 | s += 3; | |
1572 | if (!(val = whichsig(s))) | |
cea2e8a9 | 1573 | Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); |
79072805 LW |
1574 | } |
1575 | else | |
463ee0b2 | 1576 | val = SvIVx(*mark); |
20408e3c GS |
1577 | APPLY_TAINT_PROPER(); |
1578 | tot = sp - mark; | |
3595fcef | 1579 | #ifdef VMS |
1580 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
1581 | if (val < 0) val = -val; | |
1582 | if (val == SIGKILL) { | |
1583 | # include <starlet.h> | |
1584 | /* Use native sys$delprc() to insure that target process is | |
1585 | * deleted; supervisor-mode images don't pay attention to | |
1586 | * CRTL's emulation of Unix-style signals and kill() | |
1587 | */ | |
1588 | while (++mark <= sp) { | |
1589 | I32 proc = SvIVx(*mark); | |
1590 | register unsigned long int __vmssts; | |
20408e3c | 1591 | APPLY_TAINT_PROPER(); |
3595fcef | 1592 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1593 | tot--; | |
1594 | switch (__vmssts) { | |
1595 | case SS$_NONEXPR: | |
1596 | case SS$_NOSUCHNODE: | |
1597 | SETERRNO(ESRCH,__vmssts); | |
1598 | break; | |
1599 | case SS$_NOPRIV: | |
1600 | SETERRNO(EPERM,__vmssts); | |
1601 | break; | |
1602 | default: | |
1603 | SETERRNO(EVMSERR,__vmssts); | |
1604 | } | |
1605 | } | |
1606 | } | |
1607 | break; | |
1608 | } | |
1609 | #endif | |
79072805 LW |
1610 | if (val < 0) { |
1611 | val = -val; | |
1612 | while (++mark <= sp) { | |
463ee0b2 | 1613 | I32 proc = SvIVx(*mark); |
20408e3c | 1614 | APPLY_TAINT_PROPER(); |
fe14fcc3 | 1615 | #ifdef HAS_KILLPG |
3028581b | 1616 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c | 1617 | #else |
3028581b | 1618 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c | 1619 | #endif |
79072805 | 1620 | tot--; |
a687059c | 1621 | } |
79072805 LW |
1622 | } |
1623 | else { | |
1624 | while (++mark <= sp) { | |
20408e3c GS |
1625 | I32 proc = SvIVx(*mark); |
1626 | APPLY_TAINT_PROPER(); | |
1627 | if (PerlProc_kill(proc, val)) | |
79072805 | 1628 | tot--; |
a687059c LW |
1629 | } |
1630 | } | |
1631 | break; | |
b1248f16 | 1632 | #endif |
79072805 | 1633 | case OP_UNLINK: |
20408e3c GS |
1634 | what = "unlink"; |
1635 | APPLY_TAINT_PROPER(); | |
79072805 LW |
1636 | tot = sp - mark; |
1637 | while (++mark <= sp) { | |
2d8e6c8d | 1638 | s = SvPVx(*mark, n_a); |
20408e3c | 1639 | APPLY_TAINT_PROPER(); |
3280af22 | 1640 | if (PL_euid || PL_unsafe) { |
a687059c LW |
1641 | if (UNLINK(s)) |
1642 | tot--; | |
1643 | } | |
1644 | else { /* don't let root wipe out directories without -U */ | |
3280af22 | 1645 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c LW |
1646 | tot--; |
1647 | else { | |
1648 | if (UNLINK(s)) | |
1649 | tot--; | |
1650 | } | |
1651 | } | |
1652 | } | |
1653 | break; | |
a0d0e21e | 1654 | #ifdef HAS_UTIME |
79072805 | 1655 | case OP_UTIME: |
20408e3c GS |
1656 | what = "utime"; |
1657 | APPLY_TAINT_PROPER(); | |
79072805 | 1658 | if (sp - mark > 2) { |
748a9306 | 1659 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1660 | struct utimbuf utbuf; |
1661 | #else | |
a687059c | 1662 | struct { |
dd2821f6 GS |
1663 | Time_t actime; |
1664 | Time_t modtime; | |
a687059c | 1665 | } utbuf; |
663a0e37 | 1666 | #endif |
a687059c | 1667 | |
afd9f252 | 1668 | Zero(&utbuf, sizeof utbuf, char); |
517844ec | 1669 | #ifdef BIG_TIME |
dd2821f6 GS |
1670 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1671 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ | |
517844ec | 1672 | #else |
dd2821f6 GS |
1673 | utbuf.actime = (Time_t)SvIVx(*++mark); /* time accessed */ |
1674 | utbuf.modtime = (Time_t)SvIVx(*++mark); /* time modified */ | |
517844ec | 1675 | #endif |
20408e3c | 1676 | APPLY_TAINT_PROPER(); |
79072805 LW |
1677 | tot = sp - mark; |
1678 | while (++mark <= sp) { | |
2d8e6c8d | 1679 | char *name = SvPVx(*mark, n_a); |
20408e3c GS |
1680 | APPLY_TAINT_PROPER(); |
1681 | if (PerlLIO_utime(name, &utbuf)) | |
a687059c LW |
1682 | tot--; |
1683 | } | |
a687059c LW |
1684 | } |
1685 | else | |
79072805 | 1686 | tot = 0; |
a687059c | 1687 | break; |
a0d0e21e | 1688 | #endif |
a687059c LW |
1689 | } |
1690 | return tot; | |
20408e3c | 1691 | |
20408e3c | 1692 | #undef APPLY_TAINT_PROPER |
a687059c LW |
1693 | } |
1694 | ||
1695 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1696 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae JH |
1697 | bool |
1698 | Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp) | |
1699 | /* Note: we use `effective' both for uids and gids. | |
1700 | * Here we are betting on Uid_t being equal or wider than Gid_t. */ | |
a687059c | 1701 | { |
bee1dbe2 | 1702 | #ifdef DOSISH |
fe14fcc3 LW |
1703 | /* [Comments and code from Len Reed] |
1704 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1705 | * to write-protected files. The execute permission bit is set | |
1706 | * by the Miscrosoft C library stat() function for the following: | |
1707 | * .exe files | |
1708 | * .com files | |
1709 | * .bat files | |
1710 | * directories | |
1711 | * All files and directories are readable. | |
1712 | * Directories and special files, e.g. "CON", cannot be | |
1713 | * write-protected. | |
1714 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1715 | * bit set in the file system, but DOS permits changes to | |
1716 | * the directory anyway. In addition, all bets are off | |
1717 | * here for networked software, such as Novell and | |
1718 | * Sun's PC-NFS.] | |
1719 | */ | |
1720 | ||
bee1dbe2 LW |
1721 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1722 | * too so it will actually look into the files for magic numbers | |
1723 | */ | |
7f4774ae | 1724 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 | 1725 | |
55497cff | 1726 | #else /* ! DOSISH */ |
3280af22 | 1727 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
7f4774ae | 1728 | if (mode == S_IXUSR) { |
c623bd54 | 1729 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c LW |
1730 | return TRUE; |
1731 | } | |
1732 | else | |
1733 | return TRUE; /* root reads and writes anything */ | |
1734 | return FALSE; | |
1735 | } | |
3280af22 | 1736 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
7f4774ae | 1737 | if (statbufp->st_mode & mode) |
a687059c LW |
1738 | return TRUE; /* ok as "user" */ |
1739 | } | |
d8eceb89 | 1740 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae | 1741 | if (statbufp->st_mode & mode >> 3) |
a687059c LW |
1742 | return TRUE; /* ok as "group" */ |
1743 | } | |
7f4774ae | 1744 | else if (statbufp->st_mode & mode >> 6) |
a687059c LW |
1745 | return TRUE; /* ok as "other" */ |
1746 | return FALSE; | |
55497cff | 1747 | #endif /* ! DOSISH */ |
a687059c | 1748 | } |
a0d0e21e | 1749 | #endif /* ! VMS */ |
a687059c | 1750 | |
d8eceb89 JH |
1751 | bool |
1752 | Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) | |
a687059c | 1753 | { |
cd39f2b6 JH |
1754 | #ifdef MACOS_TRADITIONAL |
1755 | /* This is simply not correct for AppleShare, but fix it yerself. */ | |
1756 | return TRUE; | |
1757 | #else | |
3280af22 | 1758 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c | 1759 | return TRUE; |
fe14fcc3 | 1760 | #ifdef HAS_GETGROUPS |
a687059c LW |
1761 | #ifndef NGROUPS |
1762 | #define NGROUPS 32 | |
1763 | #endif | |
1764 | { | |
a0d0e21e | 1765 | Groups_t gary[NGROUPS]; |
79072805 | 1766 | I32 anum; |
a687059c LW |
1767 | |
1768 | anum = getgroups(NGROUPS,gary); | |
1769 | while (--anum >= 0) | |
1770 | if (gary[anum] == testgid) | |
1771 | return TRUE; | |
1772 | } | |
1773 | #endif | |
1774 | return FALSE; | |
cd39f2b6 | 1775 | #endif |
a687059c | 1776 | } |
c2ab57d4 | 1777 | |
fe14fcc3 | 1778 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1779 | |
79072805 | 1780 | I32 |
864dbfa3 | 1781 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1782 | { |
c2ab57d4 | 1783 | key_t key; |
79072805 | 1784 | I32 n, flags; |
c2ab57d4 | 1785 | |
463ee0b2 LW |
1786 | key = (key_t)SvNVx(*++mark); |
1787 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1788 | flags = SvIVx(*++mark); | |
748a9306 | 1789 | SETERRNO(0,0); |
c2ab57d4 LW |
1790 | switch (optype) |
1791 | { | |
fe14fcc3 | 1792 | #ifdef HAS_MSG |
79072805 | 1793 | case OP_MSGGET: |
c2ab57d4 | 1794 | return msgget(key, flags); |
e5d73d77 | 1795 | #endif |
fe14fcc3 | 1796 | #ifdef HAS_SEM |
79072805 | 1797 | case OP_SEMGET: |
c2ab57d4 | 1798 | return semget(key, n, flags); |
e5d73d77 | 1799 | #endif |
fe14fcc3 | 1800 | #ifdef HAS_SHM |
79072805 | 1801 | case OP_SHMGET: |
c2ab57d4 | 1802 | return shmget(key, n, flags); |
e5d73d77 | 1803 | #endif |
fe14fcc3 | 1804 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1805 | default: |
cea2e8a9 | 1806 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 1807 | #endif |
c2ab57d4 LW |
1808 | } |
1809 | return -1; /* should never happen */ | |
1810 | } | |
1811 | ||
79072805 | 1812 | I32 |
864dbfa3 | 1813 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1814 | { |
79072805 | 1815 | SV *astr; |
c2ab57d4 | 1816 | char *a; |
a0d0e21e LW |
1817 | I32 id, n, cmd, infosize, getinfo; |
1818 | I32 ret = -1; | |
c2ab57d4 | 1819 | |
463ee0b2 LW |
1820 | id = SvIVx(*++mark); |
1821 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1822 | cmd = SvIVx(*++mark); | |
79072805 | 1823 | astr = *++mark; |
c2ab57d4 LW |
1824 | infosize = 0; |
1825 | getinfo = (cmd == IPC_STAT); | |
1826 | ||
1827 | switch (optype) | |
1828 | { | |
fe14fcc3 | 1829 | #ifdef HAS_MSG |
79072805 | 1830 | case OP_MSGCTL: |
c2ab57d4 LW |
1831 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1832 | infosize = sizeof(struct msqid_ds); | |
1833 | break; | |
e5d73d77 | 1834 | #endif |
fe14fcc3 | 1835 | #ifdef HAS_SHM |
79072805 | 1836 | case OP_SHMCTL: |
c2ab57d4 LW |
1837 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1838 | infosize = sizeof(struct shmid_ds); | |
1839 | break; | |
e5d73d77 | 1840 | #endif |
fe14fcc3 | 1841 | #ifdef HAS_SEM |
79072805 | 1842 | case OP_SEMCTL: |
39398f3f | 1843 | #ifdef Semctl |
c2ab57d4 LW |
1844 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1845 | infosize = sizeof(struct semid_ds); | |
1846 | else if (cmd == GETALL || cmd == SETALL) | |
1847 | { | |
8e591e46 | 1848 | struct semid_ds semds; |
bd89102f | 1849 | union semun semun; |
e6f0bdd6 GS |
1850 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1851 | semun.buff = &semds; | |
1852 | #else | |
84902520 | 1853 | semun.buf = &semds; |
e6f0bdd6 | 1854 | #endif |
c2ab57d4 | 1855 | getinfo = (cmd == GETALL); |
9b89d93d GB |
1856 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1857 | return -1; | |
6e21c824 LW |
1858 | infosize = semds.sem_nsems * sizeof(short); |
1859 | /* "short" is technically wrong but much more portable | |
1860 | than guessing about u_?short(_t)? */ | |
c2ab57d4 | 1861 | } |
39398f3f | 1862 | #else |
cea2e8a9 | 1863 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 1864 | #endif |
c2ab57d4 | 1865 | break; |
e5d73d77 | 1866 | #endif |
fe14fcc3 | 1867 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1868 | default: |
cea2e8a9 | 1869 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 1870 | #endif |
c2ab57d4 LW |
1871 | } |
1872 | ||
1873 | if (infosize) | |
1874 | { | |
a0d0e21e | 1875 | STRLEN len; |
c2ab57d4 LW |
1876 | if (getinfo) |
1877 | { | |
a0d0e21e LW |
1878 | SvPV_force(astr, len); |
1879 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
1880 | } |
1881 | else | |
1882 | { | |
463ee0b2 LW |
1883 | a = SvPV(astr, len); |
1884 | if (len != infosize) | |
cea2e8a9 | 1885 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 JH |
1886 | PL_op_desc[optype], |
1887 | (unsigned long)len, | |
1888 | (long)infosize); | |
c2ab57d4 LW |
1889 | } |
1890 | } | |
1891 | else | |
1892 | { | |
c030ccd9 | 1893 | IV i = SvIV(astr); |
56431972 | 1894 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 | 1895 | } |
748a9306 | 1896 | SETERRNO(0,0); |
c2ab57d4 LW |
1897 | switch (optype) |
1898 | { | |
fe14fcc3 | 1899 | #ifdef HAS_MSG |
79072805 | 1900 | case OP_MSGCTL: |
bee1dbe2 | 1901 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 1902 | break; |
e5d73d77 | 1903 | #endif |
fe14fcc3 | 1904 | #ifdef HAS_SEM |
bd89102f | 1905 | case OP_SEMCTL: { |
39398f3f | 1906 | #ifdef Semctl |
bd89102f AD |
1907 | union semun unsemds; |
1908 | ||
e6f0bdd6 GS |
1909 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1910 | unsemds.buff = (struct semid_ds *)a; | |
1911 | #else | |
bd89102f | 1912 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 | 1913 | #endif |
bd89102f | 1914 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f | 1915 | #else |
cea2e8a9 | 1916 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 1917 | #endif |
bd89102f | 1918 | } |
c2ab57d4 | 1919 | break; |
e5d73d77 | 1920 | #endif |
fe14fcc3 | 1921 | #ifdef HAS_SHM |
79072805 | 1922 | case OP_SHMCTL: |
bee1dbe2 | 1923 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 1924 | break; |
e5d73d77 | 1925 | #endif |
c2ab57d4 LW |
1926 | } |
1927 | if (getinfo && ret >= 0) { | |
79072805 LW |
1928 | SvCUR_set(astr, infosize); |
1929 | *SvEND(astr) = '\0'; | |
a0d0e21e | 1930 | SvSETMAGIC(astr); |
c2ab57d4 LW |
1931 | } |
1932 | return ret; | |
1933 | } | |
1934 | ||
79072805 | 1935 | I32 |
864dbfa3 | 1936 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 1937 | { |
fe14fcc3 | 1938 | #ifdef HAS_MSG |
79072805 | 1939 | SV *mstr; |
c2ab57d4 | 1940 | char *mbuf; |
79072805 | 1941 | I32 id, msize, flags; |
463ee0b2 | 1942 | STRLEN len; |
c2ab57d4 | 1943 | |
463ee0b2 | 1944 | id = SvIVx(*++mark); |
79072805 | 1945 | mstr = *++mark; |
463ee0b2 LW |
1946 | flags = SvIVx(*++mark); |
1947 | mbuf = SvPV(mstr, len); | |
1948 | if ((msize = len - sizeof(long)) < 0) | |
cea2e8a9 | 1949 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 | 1950 | SETERRNO(0,0); |
bee1dbe2 | 1951 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 1952 | #else |
cea2e8a9 | 1953 | Perl_croak(aTHX_ "msgsnd not implemented"); |
e5d73d77 | 1954 | #endif |
c2ab57d4 LW |
1955 | } |
1956 | ||
79072805 | 1957 | I32 |
864dbfa3 | 1958 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 1959 | { |
fe14fcc3 | 1960 | #ifdef HAS_MSG |
79072805 | 1961 | SV *mstr; |
c2ab57d4 LW |
1962 | char *mbuf; |
1963 | long mtype; | |
79072805 | 1964 | I32 id, msize, flags, ret; |
463ee0b2 | 1965 | STRLEN len; |
79072805 | 1966 | |
463ee0b2 | 1967 | id = SvIVx(*++mark); |
79072805 | 1968 | mstr = *++mark; |
c2e66d9e GS |
1969 | /* suppress warning when reading into undef var --jhi */ |
1970 | if (! SvOK(mstr)) | |
1971 | sv_setpvn(mstr, "", 0); | |
463ee0b2 LW |
1972 | msize = SvIVx(*++mark); |
1973 | mtype = (long)SvIVx(*++mark); | |
1974 | flags = SvIVx(*++mark); | |
a0d0e21e LW |
1975 | SvPV_force(mstr, len); |
1976 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
a1d180c4 | 1977 | |
748a9306 | 1978 | SETERRNO(0,0); |
bee1dbe2 | 1979 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 1980 | if (ret >= 0) { |
79072805 LW |
1981 | SvCUR_set(mstr, sizeof(long)+ret); |
1982 | *SvEND(mstr) = '\0'; | |
41d6edb2 JH |
1983 | #ifndef INCOMPLETE_TAINTS |
1984 | /* who knows who has been playing with this message? */ | |
1985 | SvTAINTED_on(mstr); | |
1986 | #endif | |
c2ab57d4 LW |
1987 | } |
1988 | return ret; | |
e5d73d77 | 1989 | #else |
cea2e8a9 | 1990 | Perl_croak(aTHX_ "msgrcv not implemented"); |
e5d73d77 | 1991 | #endif |
c2ab57d4 LW |
1992 | } |
1993 | ||
79072805 | 1994 | I32 |
864dbfa3 | 1995 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 1996 | { |
fe14fcc3 | 1997 | #ifdef HAS_SEM |
79072805 | 1998 | SV *opstr; |
c2ab57d4 | 1999 | char *opbuf; |
463ee0b2 LW |
2000 | I32 id; |
2001 | STRLEN opsize; | |
c2ab57d4 | 2002 | |
463ee0b2 | 2003 | id = SvIVx(*++mark); |
79072805 | 2004 | opstr = *++mark; |
463ee0b2 | 2005 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 LW |
2006 | if (opsize < sizeof(struct sembuf) |
2007 | || (opsize % sizeof(struct sembuf)) != 0) { | |
748a9306 | 2008 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 LW |
2009 | return -1; |
2010 | } | |
748a9306 | 2011 | SETERRNO(0,0); |
6e21c824 | 2012 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 | 2013 | #else |
cea2e8a9 | 2014 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 | 2015 | #endif |
c2ab57d4 LW |
2016 | } |
2017 | ||
79072805 | 2018 | I32 |
864dbfa3 | 2019 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 2020 | { |
fe14fcc3 | 2021 | #ifdef HAS_SHM |
79072805 | 2022 | SV *mstr; |
c2ab57d4 | 2023 | char *mbuf, *shm; |
79072805 | 2024 | I32 id, mpos, msize; |
463ee0b2 | 2025 | STRLEN len; |
c2ab57d4 | 2026 | struct shmid_ds shmds; |
c2ab57d4 | 2027 | |
463ee0b2 | 2028 | id = SvIVx(*++mark); |
79072805 | 2029 | mstr = *++mark; |
463ee0b2 LW |
2030 | mpos = SvIVx(*++mark); |
2031 | msize = SvIVx(*++mark); | |
748a9306 | 2032 | SETERRNO(0,0); |
c2ab57d4 LW |
2033 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
2034 | return -1; | |
2035 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
748a9306 | 2036 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
2037 | return -1; |
2038 | } | |
8ac85365 | 2039 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
2040 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
2041 | return -1; | |
79072805 | 2042 | if (optype == OP_SHMREAD) { |
9f538c04 GS |
2043 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
2044 | if (! SvOK(mstr)) | |
2045 | sv_setpvn(mstr, "", 0); | |
a0d0e21e LW |
2046 | SvPV_force(mstr, len); |
2047 | mbuf = SvGROW(mstr, msize+1); | |
2048 | ||
bee1dbe2 | 2049 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
2050 | SvCUR_set(mstr, msize); |
2051 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 2052 | SvSETMAGIC(mstr); |
d929ce6f JH |
2053 | #ifndef INCOMPLETE_TAINTS |
2054 | /* who knows who has been playing with this shared memory? */ | |
2055 | SvTAINTED_on(mstr); | |
2056 | #endif | |
c2ab57d4 LW |
2057 | } |
2058 | else { | |
79072805 | 2059 | I32 n; |
c2ab57d4 | 2060 | |
a0d0e21e | 2061 | mbuf = SvPV(mstr, len); |
463ee0b2 | 2062 | if ((n = len) > msize) |
c2ab57d4 | 2063 | n = msize; |
bee1dbe2 | 2064 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2065 | if (n < msize) |
bee1dbe2 | 2066 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2067 | } |
2068 | return shmdt(shm); | |
e5d73d77 | 2069 | #else |
cea2e8a9 | 2070 | Perl_croak(aTHX_ "shm I/O not implemented"); |
e5d73d77 | 2071 | #endif |
c2ab57d4 LW |
2072 | } |
2073 | ||
fe14fcc3 | 2074 | #endif /* SYSV IPC */ |
4e35701f | 2075 | |
0d44d22b NC |
2076 | /* |
2077 | =for apidoc start_glob | |
2078 | ||
2079 | Function called by C<do_readline> to spawn a glob (or do the glob inside | |
2080 | perl on VMS). This code used to be inline, but now perl uses C<File::Glob> | |
2081 | this glob starter is only used by miniperl during the build proccess. | |
2082 | Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up. | |
fab3f3a7 | 2083 | |
0d44d22b NC |
2084 | =cut |
2085 | */ | |
2086 | ||
2087 | PerlIO * | |
2088 | Perl_start_glob (pTHX_ SV *tmpglob, IO *io) | |
2089 | { | |
2090 | SV *tmpcmd = NEWSV(55, 0); | |
2091 | PerlIO *fp; | |
2092 | ENTER; | |
2093 | SAVEFREESV(tmpcmd); | |
2094 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
2095 | /* since spawning off a process is a real performance hit */ | |
2096 | { | |
2097 | #include <descrip.h> | |
2098 | #include <lib$routines.h> | |
2099 | #include <nam.h> | |
2100 | #include <rmsdef.h> | |
2101 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
2102 | char vmsspec[NAM$C_MAXRSS+1]; | |
2103 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
2104 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
2105 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
2106 | PerlIO *tmpfp; | |
2107 | STRLEN i; | |
2108 | struct dsc$descriptor_s wilddsc | |
2109 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
2110 | struct dsc$descriptor_vs rsdsc | |
2111 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
2112 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
2113 | ||
2114 | /* We could find out if there's an explicit dev/dir or version | |
2115 | by peeking into lib$find_file's internal context at | |
2116 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
2117 | but that's unsupported, so I don't want to do it now and | |
2118 | have it bite someone in the future. */ | |
2119 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); | |
2120 | cp = SvPV(tmpglob,i); | |
2121 | for (; i; i--) { | |
2122 | if (cp[i] == ';') hasver = 1; | |
2123 | if (cp[i] == '.') { | |
2124 | if (sts) hasver = 1; | |
2125 | else sts = 1; | |
2126 | } | |
2127 | if (cp[i] == '/') { | |
2128 | hasdir = isunix = 1; | |
2129 | break; | |
2130 | } | |
2131 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { | |
2132 | hasdir = 1; | |
2133 | break; | |
2134 | } | |
2135 | } | |
2136 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { | |
2137 | Stat_t st; | |
2138 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) | |
2139 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); | |
2140 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
2141 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); | |
2142 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
2143 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
2144 | end = rstr + (unsigned long int) *rslt; | |
2145 | if (!hasver) while (*end != ';') end--; | |
2146 | *(end++) = '\n'; *end = '\0'; | |
2147 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
2148 | if (hasdir) { | |
2149 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); | |
2150 | begin = rstr; | |
2151 | } | |
2152 | else { | |
2153 | begin = end; | |
2154 | while (*(--begin) != ']' && *begin != '>') ; | |
2155 | ++begin; | |
2156 | } | |
2157 | ok = (PerlIO_puts(tmpfp,begin) != EOF); | |
2158 | } | |
2159 | if (cxt) (void)lib$find_file_end(&cxt); | |
2160 | if (ok && sts != RMS$_NMF && | |
2161 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
2162 | if (!ok) { | |
2163 | if (!(sts & 1)) { | |
2164 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
2165 | } | |
2166 | PerlIO_close(tmpfp); | |
2167 | fp = NULL; | |
2168 | } | |
2169 | else { | |
2170 | PerlIO_rewind(tmpfp); | |
2171 | IoTYPE(io) = IoTYPE_RDONLY; | |
2172 | IoIFP(io) = fp = tmpfp; | |
2173 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ | |
2174 | } | |
2175 | } | |
2176 | } | |
2177 | #else /* !VMS */ | |
2178 | #ifdef MACOS_TRADITIONAL | |
2179 | sv_setpv(tmpcmd, "glob "); | |
2180 | sv_catsv(tmpcmd, tmpglob); | |
2181 | sv_catpv(tmpcmd, " |"); | |
2182 | #else | |
2183 | #ifdef DOSISH | |
2184 | #ifdef OS2 | |
2185 | sv_setpv(tmpcmd, "for a in "); | |
2186 | sv_catsv(tmpcmd, tmpglob); | |
2187 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
2188 | #else | |
2189 | #ifdef DJGPP | |
2190 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
2191 | sv_catsv(tmpcmd, tmpglob); | |
2192 | #else | |
2193 | sv_setpv(tmpcmd, "perlglob "); | |
2194 | sv_catsv(tmpcmd, tmpglob); | |
2195 | sv_catpv(tmpcmd, " |"); | |
2196 | #endif /* !DJGPP */ | |
2197 | #endif /* !OS2 */ | |
2198 | #else /* !DOSISH */ | |
2199 | #if defined(CSH) | |
2200 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); | |
2201 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
2202 | sv_catsv(tmpcmd, tmpglob); | |
2203 | sv_catpv(tmpcmd, "' 2>/dev/null |"); | |
2204 | #else | |
2205 | sv_setpv(tmpcmd, "echo "); | |
2206 | sv_catsv(tmpcmd, tmpglob); | |
2207 | #if 'z' - 'a' == 25 | |
2208 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
2209 | #else | |
2210 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
2211 | #endif | |
2212 | #endif /* !CSH */ | |
2213 | #endif /* !DOSISH */ | |
2214 | #endif /* MACOS_TRADITIONAL */ | |
2215 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), | |
2216 | FALSE, O_RDONLY, 0, Nullfp); | |
2217 | fp = IoIFP(io); | |
2218 | #endif /* !VMS */ | |
2219 | LEAVE; | |
2220 | return fp; | |
2221 | } |