Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, 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 | { | |
58 | return do_open9(gv, name, len, as_raw, rawmode, rawperm, | |
59 | supplied_fp, Nullsv, 0); | |
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 | { |
a0d0e21e | 67 | register IO *io = GvIOn(gv); |
760ac839 LW |
68 | PerlIO *saveifp = Nullfp; |
69 | PerlIO *saveofp = Nullfp; | |
9f37169a | 70 | char savetype = IoTYPE_CLOSED; |
c07a80fd | 71 | int writing = 0; |
760ac839 | 72 | PerlIO *fp; |
c07a80fd | 73 | int fd; |
74 | int result; | |
3500f679 | 75 | bool was_fdopen = FALSE; |
16fe6d59 | 76 | bool in_raw = 0, in_crlf = 0, out_raw = 0, out_crlf = 0; |
b931b1d9 NIS |
77 | char *type = NULL; |
78 | char *deftype = NULL; | |
79 | char mode[4]; /* stdio file mode ("r\0", "rb\0", "r+b\0" etc.) */ | |
a687059c | 80 | |
b931b1d9 | 81 | Zero(mode,sizeof(mode),char); |
3280af22 | 82 | PL_forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 83 | |
b931b1d9 | 84 | /* Collect default raw/crlf info from the op */ |
16fe6d59 GS |
85 | if (PL_op && PL_op->op_type == OP_OPEN) { |
86 | /* set up disciplines */ | |
87 | U8 flags = PL_op->op_private; | |
88 | in_raw = (flags & OPpOPEN_IN_RAW); | |
89 | in_crlf = (flags & OPpOPEN_IN_CRLF); | |
90 | out_raw = (flags & OPpOPEN_OUT_RAW); | |
91 | out_crlf = (flags & OPpOPEN_OUT_CRLF); | |
92 | } | |
93 | ||
b931b1d9 | 94 | /* If currently open - close before we re-open */ |
a0d0e21e | 95 | if (IoIFP(io)) { |
760ac839 | 96 | fd = PerlIO_fileno(IoIFP(io)); |
50952442 | 97 | if (IoTYPE(io) == IoTYPE_STD) |
c2ab57d4 | 98 | result = 0; |
3280af22 | 99 | else if (fd <= PL_maxsysfd) { |
8990e307 LW |
100 | saveifp = IoIFP(io); |
101 | saveofp = IoOFP(io); | |
102 | savetype = IoTYPE(io); | |
6e21c824 LW |
103 | result = 0; |
104 | } | |
50952442 | 105 | else if (IoTYPE(io) == IoTYPE_PIPE) |
3028581b | 106 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 LW |
107 | else if (IoIFP(io) != IoOFP(io)) { |
108 | if (IoOFP(io)) { | |
760ac839 | 109 | result = PerlIO_close(IoOFP(io)); |
6170680b | 110 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ |
c2ab57d4 LW |
111 | } |
112 | else | |
760ac839 | 113 | result = PerlIO_close(IoIFP(io)); |
a687059c | 114 | } |
a687059c | 115 | else |
760ac839 | 116 | result = PerlIO_close(IoIFP(io)); |
3280af22 | 117 | if (result == EOF && fd > PL_maxsysfd) |
bf49b057 | 118 | PerlIO_printf(Perl_error_log, |
6170680b IZ |
119 | "Warning: unable to close filehandle %s properly.\n", |
120 | GvENAME(gv)); | |
8990e307 | 121 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c | 122 | } |
c07a80fd | 123 | |
124 | if (as_raw) { | |
b931b1d9 NIS |
125 | /* sysopen style args, i.e. integer mode and permissions */ |
126 | ||
09458382 | 127 | #if defined(USE_64_BIT_RAWIO) && defined(O_LARGEFILE) |
5ff3f7a4 GS |
128 | rawmode |= O_LARGEFILE; |
129 | #endif | |
130 | ||
9d116dd7 JH |
131 | #ifndef O_ACCMODE |
132 | #define O_ACCMODE 3 /* Assume traditional implementation */ | |
133 | #endif | |
5ff3f7a4 | 134 | |
9d116dd7 JH |
135 | switch (result = rawmode & O_ACCMODE) { |
136 | case O_RDONLY: | |
50952442 | 137 | IoTYPE(io) = IoTYPE_RDONLY; |
9d116dd7 JH |
138 | break; |
139 | case O_WRONLY: | |
50952442 | 140 | IoTYPE(io) = IoTYPE_WRONLY; |
9d116dd7 JH |
141 | break; |
142 | case O_RDWR: | |
143 | default: | |
50952442 | 144 | IoTYPE(io) = IoTYPE_RDWR; |
9d116dd7 JH |
145 | break; |
146 | } | |
147 | ||
c07a80fd | 148 | writing = (result > 0); |
3028581b | 149 | fd = PerlLIO_open3(name, rawmode, rawperm); |
9d116dd7 | 150 | |
c07a80fd | 151 | if (fd == -1) |
152 | fp = NULL; | |
153 | else { | |
16fe6d59 | 154 | STRLEN ix = 0; |
b931b1d9 NIS |
155 | if (result == O_RDONLY) { |
156 | mode[ix++] = 'r'; | |
157 | } | |
360e5741 | 158 | #ifdef O_APPEND |
16fe6d59 | 159 | else if (rawmode & O_APPEND) { |
b931b1d9 | 160 | mode[ix++] = 'a'; |
16fe6d59 | 161 | if (result != O_WRONLY) |
b931b1d9 | 162 | mode[ix++] = '+'; |
16fe6d59 | 163 | } |
360e5741 | 164 | #endif |
16fe6d59 GS |
165 | else { |
166 | if (result == O_WRONLY) | |
b931b1d9 | 167 | mode[ix++] = 'w'; |
16fe6d59 | 168 | else { |
b931b1d9 NIS |
169 | mode[ix++] = 'r'; |
170 | mode[ix++] = '+'; | |
16fe6d59 GS |
171 | } |
172 | } | |
173 | if (rawmode & O_BINARY) | |
b931b1d9 NIS |
174 | mode[ix++] = 'b'; |
175 | mode[ix] = '\0'; | |
176 | fp = PerlIO_fdopen(fd, mode); | |
c07a80fd | 177 | if (!fp) |
3028581b | 178 | PerlLIO_close(fd); |
c07a80fd | 179 | } |
a687059c | 180 | } |
c07a80fd | 181 | else { |
b931b1d9 | 182 | /* Regular (non-sys) open */ |
faecd977 | 183 | char *oname = name; |
faecd977 | 184 | STRLEN olen = len; |
b931b1d9 NIS |
185 | char *tend; |
186 | int dodup = 0; | |
c07a80fd | 187 | |
faecd977 | 188 | type = savepvn(name, len); |
b931b1d9 | 189 | tend = type+len; |
faecd977 | 190 | SAVEFREEPV(type); |
b931b1d9 NIS |
191 | /* Loose trailing white space */ |
192 | while (tend > type && isSPACE(tend[-1])) | |
193 | *tend-- = '\0'; | |
6170680b | 194 | if (num_svs) { |
b931b1d9 | 195 | /* New style explict name, type is just mode and discipline/layer info */ |
faecd977 GS |
196 | STRLEN l; |
197 | name = SvPV(svs, l) ; | |
198 | len = (I32)l; | |
199 | name = savepvn(name, len); | |
200 | SAVEFREEPV(name); | |
b931b1d9 NIS |
201 | /*SUPPRESS 530*/ |
202 | for (; isSPACE(*type); type++) ; | |
6170680b | 203 | } |
faecd977 | 204 | else { |
faecd977 | 205 | name = type; |
b931b1d9 | 206 | len = tend-type; |
faecd977 | 207 | } |
6170680b | 208 | IoTYPE(io) = *type; |
b931b1d9 | 209 | if (*type == IoTYPE_RDWR && (!num_svs || tend > type+1 && tend[-1] != IoTYPE_PIPE)) { /* scary */ |
6170680b | 210 | mode[1] = *type++; |
c07a80fd | 211 | writing = 1; |
a687059c | 212 | } |
c07a80fd | 213 | |
9f37169a | 214 | if (*type == IoTYPE_PIPE) { |
b931b1d9 NIS |
215 | if (num_svs) { |
216 | if (type[1] != IoTYPE_STD) { | |
217 | unknown_desr: | |
218 | Perl_croak(aTHX_ "Unknown open() mode '%.*s'", (int)olen, oname); | |
219 | } | |
220 | type++; | |
6170680b | 221 | } |
c07a80fd | 222 | /*SUPPRESS 530*/ |
b931b1d9 | 223 | for (type++; isSPACE(*type); type++) ; |
faecd977 | 224 | if (!num_svs) { |
6170680b | 225 | name = type; |
b931b1d9 | 226 | len = tend-type; |
faecd977 | 227 | } |
06eaf0bc | 228 | if (*name == '\0') { /* command is missing 19990114 */ |
06eaf0bc | 229 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 | 230 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc GS |
231 | errno = EPIPE; |
232 | goto say_false; | |
233 | } | |
6170680b | 234 | if (strNE(name,"-") || num_svs) |
c07a80fd | 235 | TAINT_ENV(); |
236 | TAINT_PROPER("piped open"); | |
b931b1d9 | 237 | if (!num_svs && name[len-1] == '|') { |
faecd977 | 238 | name[--len] = '\0' ; |
599cee73 | 239 | if (ckWARN(WARN_PIPE)) |
9a7dcd9c | 240 | Perl_warner(aTHX_ WARN_PIPE, "Can't open bidirectional pipe"); |
7b8d334a | 241 | } |
a1d180c4 | 242 | mode[0] = 'w'; |
c07a80fd | 243 | writing = 1; |
a1d180c4 NIS |
244 | if (out_raw) |
245 | strcat(mode, "b"); | |
246 | else if (out_crlf) | |
247 | strcat(mode, "t"); | |
248 | fp = PerlProc_popen(name,mode); | |
c07a80fd | 249 | } |
9f37169a | 250 | else if (*type == IoTYPE_WRONLY) { |
c07a80fd | 251 | TAINT_PROPER("open"); |
6170680b | 252 | type++; |
9f37169a JH |
253 | if (*type == IoTYPE_WRONLY) { |
254 | /* Two IoTYPE_WRONLYs in a row make for an IoTYPE_APPEND. */ | |
50952442 | 255 | mode[0] = IoTYPE(io) = IoTYPE_APPEND; |
6170680b | 256 | type++; |
a0d0e21e | 257 | } |
c07a80fd | 258 | else |
259 | mode[0] = 'w'; | |
260 | writing = 1; | |
261 | ||
16fe6d59 GS |
262 | if (out_raw) |
263 | strcat(mode, "b"); | |
264 | else if (out_crlf) | |
265 | strcat(mode, "t"); | |
266 | ||
6170680b IZ |
267 | if (*type == '&') { |
268 | name = type; | |
c07a80fd | 269 | duplicity: |
b931b1d9 NIS |
270 | if (num_svs) |
271 | goto unknown_desr; | |
c07a80fd | 272 | dodup = 1; |
273 | name++; | |
274 | if (*name == '=') { | |
275 | dodup = 0; | |
a0d0e21e | 276 | name++; |
c07a80fd | 277 | } |
278 | if (!*name && supplied_fp) | |
279 | fp = supplied_fp; | |
a0d0e21e | 280 | else { |
c07a80fd | 281 | /*SUPPRESS 530*/ |
282 | for (; isSPACE(*name); name++) ; | |
283 | if (isDIGIT(*name)) | |
284 | fd = atoi(name); | |
285 | else { | |
286 | IO* thatio; | |
287 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); | |
288 | thatio = GvIO(gv); | |
289 | if (!thatio) { | |
6e21c824 | 290 | #ifdef EINVAL |
c07a80fd | 291 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 | 292 | #endif |
c07a80fd | 293 | goto say_false; |
294 | } | |
295 | if (IoIFP(thatio)) { | |
54195c32 | 296 | PerlIO *fp = IoIFP(thatio); |
7211d486 JH |
297 | /* Flush stdio buffer before dup. --mjd |
298 | * Unfortunately SEEK_CURing 0 seems to | |
299 | * be optimized away on most platforms; | |
300 | * only Solaris and Linux seem to flush | |
301 | * on that. --jhi */ | |
2c534a3f NC |
302 | #ifdef USE_SFIO |
303 | /* sfio fails to clear error on next | |
304 | sfwrite, contrary to documentation. | |
305 | -- Nick Clark */ | |
306 | if (PerlIO_seek(fp, 0, SEEK_CUR) == -1) | |
307 | PerlIO_clearerr(fp); | |
308 | #endif | |
7211d486 JH |
309 | /* On the other hand, do all platforms |
310 | * take gracefully to flushing a read-only | |
311 | * filehandle? Perhaps we should do | |
312 | * fsetpos(src)+fgetpos(dst)? --nik */ | |
313 | PerlIO_flush(fp); | |
54195c32 | 314 | fd = PerlIO_fileno(fp); |
0759c907 JH |
315 | /* When dup()ing STDIN, STDOUT or STDERR |
316 | * explicitly set appropriate access mode */ | |
317 | if (IoIFP(thatio) == PerlIO_stdout() | |
318 | || IoIFP(thatio) == PerlIO_stderr()) | |
319 | IoTYPE(io) = IoTYPE_WRONLY; | |
320 | else if (IoIFP(thatio) == PerlIO_stdin()) | |
321 | IoTYPE(io) = IoTYPE_RDONLY; | |
322 | /* When dup()ing a socket, say result is | |
323 | * one as well */ | |
324 | else if (IoTYPE(thatio) == IoTYPE_SOCKET) | |
50952442 | 325 | IoTYPE(io) = IoTYPE_SOCKET; |
c07a80fd | 326 | } |
327 | else | |
328 | fd = -1; | |
a0d0e21e | 329 | } |
fec02dd3 | 330 | if (dodup) |
3028581b | 331 | fd = PerlLIO_dup(fd); |
3500f679 RS |
332 | else |
333 | was_fdopen = TRUE; | |
760ac839 | 334 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd | 335 | if (dodup) |
3028581b | 336 | PerlLIO_close(fd); |
faecd977 | 337 | } |
c07a80fd | 338 | } |
bf38876a | 339 | } |
c07a80fd | 340 | else { |
341 | /*SUPPRESS 530*/ | |
6170680b | 342 | for (; isSPACE(*type); type++) ; |
b931b1d9 NIS |
343 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
344 | /*SUPPRESS 530*/ | |
345 | type++; | |
760ac839 | 346 | fp = PerlIO_stdout(); |
50952442 | 347 | IoTYPE(io) = IoTYPE_STD; |
c07a80fd | 348 | } |
349 | else { | |
6170680b | 350 | fp = PerlIO_open((num_svs ? name : type), mode); |
c07a80fd | 351 | } |
bf38876a LW |
352 | } |
353 | } | |
9f37169a | 354 | else if (*type == IoTYPE_RDONLY) { |
c07a80fd | 355 | /*SUPPRESS 530*/ |
6170680b | 356 | for (type++; isSPACE(*type); type++) ; |
bf38876a | 357 | mode[0] = 'r'; |
16fe6d59 GS |
358 | if (in_raw) |
359 | strcat(mode, "b"); | |
360 | else if (in_crlf) | |
361 | strcat(mode, "t"); | |
362 | ||
6170680b IZ |
363 | if (*type == '&') { |
364 | name = type; | |
bf38876a | 365 | goto duplicity; |
6170680b | 366 | } |
b931b1d9 NIS |
367 | if (*type == IoTYPE_STD && (!type[1] || isSPACE(type[1]) || type[1] == ':')) { |
368 | /*SUPPRESS 530*/ | |
369 | type++; | |
760ac839 | 370 | fp = PerlIO_stdin(); |
50952442 | 371 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 372 | } |
bf38876a | 373 | else |
6170680b | 374 | fp = PerlIO_open((num_svs ? name : type), mode); |
a687059c | 375 | } |
b931b1d9 NIS |
376 | else if ((num_svs && type[0] == IoTYPE_STD && type[1] == IoTYPE_PIPE) || |
377 | (!num_svs && tend > type+1 && tend[-1] == IoTYPE_PIPE)) { | |
6170680b | 378 | if (num_svs) { |
b931b1d9 | 379 | type += 2; /* skip over '-|' */ |
6170680b IZ |
380 | } |
381 | else { | |
b931b1d9 NIS |
382 | *--tend = '\0'; |
383 | while (tend > type && isSPACE(tend[-1])) | |
384 | *--tend = '\0'; | |
6170680b IZ |
385 | /*SUPPRESS 530*/ |
386 | for (; isSPACE(*type); type++) ; | |
387 | name = type; | |
b931b1d9 | 388 | len = tend-type; |
6170680b | 389 | } |
06eaf0bc | 390 | if (*name == '\0') { /* command is missing 19990114 */ |
06eaf0bc | 391 | if (ckWARN(WARN_PIPE)) |
cea2e8a9 | 392 | Perl_warner(aTHX_ WARN_PIPE, "Missing command in piped open"); |
06eaf0bc GS |
393 | errno = EPIPE; |
394 | goto say_false; | |
395 | } | |
6170680b | 396 | if (strNE(name,"-") || num_svs) |
79072805 LW |
397 | TAINT_ENV(); |
398 | TAINT_PROPER("piped open"); | |
a1d180c4 NIS |
399 | mode[0] = 'r'; |
400 | if (in_raw) | |
401 | strcat(mode, "b"); | |
402 | else if (in_crlf) | |
403 | strcat(mode, "t"); | |
404 | fp = PerlProc_popen(name,mode); | |
50952442 | 405 | IoTYPE(io) = IoTYPE_PIPE; |
a687059c LW |
406 | } |
407 | else { | |
6170680b IZ |
408 | if (num_svs) |
409 | goto unknown_desr; | |
410 | name = type; | |
50952442 | 411 | IoTYPE(io) = IoTYPE_RDONLY; |
99b89507 LW |
412 | /*SUPPRESS 530*/ |
413 | for (; isSPACE(*name); name++) ; | |
88b61e10 NIS |
414 | mode[0] = 'r'; |
415 | if (in_raw) | |
416 | strcat(mode, "b"); | |
417 | else if (in_crlf) | |
418 | strcat(mode, "t"); | |
a687059c | 419 | if (strEQ(name,"-")) { |
760ac839 | 420 | fp = PerlIO_stdin(); |
50952442 | 421 | IoTYPE(io) = IoTYPE_STD; |
a687059c | 422 | } |
16fe6d59 | 423 | else { |
16fe6d59 GS |
424 | fp = PerlIO_open(name,mode); |
425 | } | |
a687059c LW |
426 | } |
427 | } | |
bee1dbe2 | 428 | if (!fp) { |
50952442 | 429 | if (ckWARN(WARN_NEWLINE) && IoTYPE(io) == IoTYPE_RDONLY && strchr(name, '\n')) |
cea2e8a9 | 430 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open"); |
6e21c824 | 431 | goto say_false; |
bee1dbe2 | 432 | } |
88b61e10 | 433 | if (IoTYPE(io) && IoTYPE(io) != IoTYPE_PIPE && IoTYPE(io) != IoTYPE_STD) { |
3280af22 | 434 | if (PerlLIO_fstat(PerlIO_fileno(fp),&PL_statbuf) < 0) { |
760ac839 | 435 | (void)PerlIO_close(fp); |
6e21c824 | 436 | goto say_false; |
a687059c | 437 | } |
3280af22 | 438 | if (S_ISSOCK(PL_statbuf.st_mode)) |
50952442 | 439 | IoTYPE(io) = IoTYPE_SOCKET; /* in case a socket was passed in to us */ |
99b89507 LW |
440 | #ifdef HAS_SOCKET |
441 | else if ( | |
c623bd54 | 442 | #ifdef S_IFMT |
3280af22 | 443 | !(PL_statbuf.st_mode & S_IFMT) |
99b89507 | 444 | #else |
b28d0864 | 445 | !PL_statbuf.st_mode |
99b89507 | 446 | #endif |
0759c907 JH |
447 | && IoTYPE(io) != IoTYPE_WRONLY /* Dups of STD* filehandles already have */ |
448 | && IoTYPE(io) != IoTYPE_RDONLY /* type so they aren't marked as sockets */ | |
449 | ) { /* on OS's that return 0 on fstat()ed pipe */ | |
96827780 MB |
450 | char tmpbuf[256]; |
451 | Sock_size_t buflen = sizeof tmpbuf; | |
3028581b | 452 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e CS |
453 | &buflen) >= 0 |
454 | || errno != ENOTSOCK) | |
50952442 | 455 | IoTYPE(io) = IoTYPE_SOCKET; /* some OS's return 0 on fstat()ed socket */ |
99b89507 LW |
456 | /* but some return 0 for streams too, sigh */ |
457 | } | |
bf38876a | 458 | #endif |
a687059c | 459 | } |
6e21c824 | 460 | if (saveifp) { /* must use old fp? */ |
f5b9d040 | 461 | /* If fd is less that PL_maxsysfd i.e. STDIN..STDERR |
24c23ab4 | 462 | then dup the new fileno down |
f5b9d040 | 463 | */ |
760ac839 | 464 | fd = PerlIO_fileno(saveifp); |
6e21c824 | 465 | if (saveofp) { |
f5b9d040 | 466 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 467 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 468 | PerlIO_close(saveofp); |
24c23ab4 | 469 | /* This looks very suspect - NI-S 24 Nov 2000 */ |
99b89507 | 470 | if (fd > 2) |
f5b9d040 | 471 | Safefree(saveofp); /* ??? */ |
6e21c824 LW |
472 | } |
473 | } | |
760ac839 | 474 | if (fd != PerlIO_fileno(fp)) { |
d8a83dd3 | 475 | Pid_t pid; |
79072805 | 476 | SV *sv; |
bee1dbe2 | 477 | |
3028581b | 478 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
4755096e | 479 | LOCK_FDPID_MUTEX; |
3280af22 | 480 | sv = *av_fetch(PL_fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e | 481 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 LW |
482 | pid = SvIVX(sv); |
483 | SvIVX(sv) = 0; | |
3280af22 | 484 | sv = *av_fetch(PL_fdpid,fd,TRUE); |
4755096e | 485 | UNLOCK_FDPID_MUTEX; |
a0d0e21e | 486 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 | 487 | SvIVX(sv) = pid; |
3500f679 RS |
488 | if (!was_fdopen) |
489 | PerlIO_close(fp); | |
bee1dbe2 | 490 | |
6e21c824 LW |
491 | } |
492 | fp = saveifp; | |
760ac839 | 493 | PerlIO_clearerr(fp); |
6e21c824 | 494 | } |
a0d0e21e | 495 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
a8710ca1 GS |
496 | { |
497 | int save_errno = errno; | |
498 | fd = PerlIO_fileno(fp); | |
499 | fcntl(fd,F_SETFD,fd > PL_maxsysfd); /* can change errno */ | |
500 | errno = save_errno; | |
501 | } | |
1462b684 | 502 | #endif |
8990e307 | 503 | IoIFP(io) = fp; |
b931b1d9 NIS |
504 | if (!num_svs) { |
505 | /* Need to supply default type info from open.pm */ | |
ac27b0f5 | 506 | SV *layers = PL_curcop->cop_io; |
b931b1d9 | 507 | type = NULL; |
ac27b0f5 NIS |
508 | if (layers) { |
509 | STRLEN len; | |
510 | type = SvPV(layers,len); | |
511 | if (type && mode[0] != 'r') { | |
512 | /* Skip to write part */ | |
513 | char *s = strchr(type,0); | |
514 | if (s && (s-type) < len) { | |
515 | type = s+1; | |
516 | } | |
517 | } | |
518 | } | |
b931b1d9 NIS |
519 | } |
520 | if (type) { | |
521 | while (isSPACE(*type)) type++; | |
522 | if (*type) { | |
ac27b0f5 NIS |
523 | if (PerlIO_apply_layers(aTHX_ IoIFP(io),mode,type) != 0) { |
524 | goto say_false; | |
525 | } | |
b931b1d9 NIS |
526 | } |
527 | } | |
528 | ||
684bef36 | 529 | IoFLAGS(io) &= ~IOf_NOLINE; |
bf38876a | 530 | if (writing) { |
50952442 JH |
531 | if (IoTYPE(io) == IoTYPE_SOCKET |
532 | || (IoTYPE(io) == IoTYPE_WRONLY && S_ISCHR(PL_statbuf.st_mode)) ) | |
16fe6d59 | 533 | { |
b931b1d9 | 534 | mode[0] = 'w'; |
16fe6d59 | 535 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),mode))) { |
760ac839 | 536 | PerlIO_close(fp); |
8990e307 | 537 | IoIFP(io) = Nullfp; |
6e21c824 | 538 | goto say_false; |
fe14fcc3 | 539 | } |
ac27b0f5 NIS |
540 | if (type && *type) { |
541 | if (PerlIO_apply_layers(aTHX_ IoOFP(io),mode,type) != 0) { | |
542 | PerlIO_close(IoOFP(io)); | |
543 | PerlIO_close(fp); | |
544 | IoIFP(io) = Nullfp; | |
545 | IoOFP(io) = Nullfp; | |
546 | goto say_false; | |
547 | } | |
548 | } | |
1462b684 LW |
549 | } |
550 | else | |
8990e307 | 551 | IoOFP(io) = fp; |
bf38876a | 552 | } |
a687059c | 553 | return TRUE; |
6e21c824 LW |
554 | |
555 | say_false: | |
8990e307 LW |
556 | IoIFP(io) = saveifp; |
557 | IoOFP(io) = saveofp; | |
558 | IoTYPE(io) = savetype; | |
6e21c824 | 559 | return FALSE; |
a687059c LW |
560 | } |
561 | ||
760ac839 | 562 | PerlIO * |
864dbfa3 | 563 | Perl_nextargv(pTHX_ register GV *gv) |
a687059c | 564 | { |
79072805 | 565 | register SV *sv; |
99b89507 | 566 | #ifndef FLEXFILENAMES |
c623bd54 LW |
567 | int filedev; |
568 | int fileino; | |
99b89507 | 569 | #endif |
761237fe JB |
570 | Uid_t fileuid; |
571 | Gid_t filegid; | |
18708f5a | 572 | IO *io = GvIOp(gv); |
fe14fcc3 | 573 | |
3280af22 NIS |
574 | if (!PL_argvoutgv) |
575 | PL_argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); | |
18708f5a GS |
576 | if (io && (IoFLAGS(io) & IOf_ARGV) && (IoFLAGS(io) & IOf_START)) { |
577 | IoFLAGS(io) &= ~IOf_START; | |
7a1c5554 GS |
578 | if (PL_inplace) { |
579 | if (!PL_argvout_stack) | |
580 | PL_argvout_stack = newAV(); | |
18708f5a | 581 | av_push(PL_argvout_stack, SvREFCNT_inc(PL_defoutgv)); |
7a1c5554 | 582 | } |
18708f5a | 583 | } |
3280af22 NIS |
584 | if (PL_filemode & (S_ISUID|S_ISGID)) { |
585 | PerlIO_flush(IoIFP(GvIOn(PL_argvoutgv))); /* chmod must follow last write */ | |
fe14fcc3 | 586 | #ifdef HAS_FCHMOD |
3280af22 | 587 | (void)fchmod(PL_lastfd,PL_filemode); |
fe14fcc3 | 588 | #else |
b28d0864 | 589 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
fe14fcc3 LW |
590 | #endif |
591 | } | |
3280af22 | 592 | PL_filemode = 0; |
79072805 | 593 | while (av_len(GvAV(gv)) >= 0) { |
85aff577 | 594 | STRLEN oldlen; |
79072805 | 595 | sv = av_shift(GvAV(gv)); |
8990e307 | 596 | SAVEFREESV(sv); |
79072805 LW |
597 | sv_setsv(GvSV(gv),sv); |
598 | SvSETMAGIC(GvSV(gv)); | |
3280af22 | 599 | PL_oldname = SvPVx(GvSV(gv), oldlen); |
9d116dd7 | 600 | if (do_open(gv,PL_oldname,oldlen,PL_inplace!=0,O_RDONLY,0,Nullfp)) { |
3280af22 | 601 | if (PL_inplace) { |
79072805 | 602 | TAINT_PROPER("inplace open"); |
3280af22 | 603 | if (oldlen == 1 && *PL_oldname == '-') { |
4633a7c4 | 604 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 605 | return IoIFP(GvIOp(gv)); |
c623bd54 | 606 | } |
99b89507 | 607 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
608 | filedev = PL_statbuf.st_dev; |
609 | fileino = PL_statbuf.st_ino; | |
99b89507 | 610 | #endif |
3280af22 NIS |
611 | PL_filemode = PL_statbuf.st_mode; |
612 | fileuid = PL_statbuf.st_uid; | |
613 | filegid = PL_statbuf.st_gid; | |
614 | if (!S_ISREG(PL_filemode)) { | |
0453d815 PM |
615 | if (ckWARN_d(WARN_INPLACE)) |
616 | Perl_warner(aTHX_ WARN_INPLACE, | |
617 | "Can't do inplace edit: %s is not a regular file", | |
618 | PL_oldname ); | |
79072805 | 619 | do_close(gv,FALSE); |
c623bd54 LW |
620 | continue; |
621 | } | |
3280af22 NIS |
622 | if (*PL_inplace) { |
623 | char *star = strchr(PL_inplace, '*'); | |
2d259d92 | 624 | if (star) { |
3280af22 | 625 | char *begin = PL_inplace; |
2d259d92 CK |
626 | sv_setpvn(sv, "", 0); |
627 | do { | |
628 | sv_catpvn(sv, begin, star - begin); | |
3280af22 | 629 | sv_catpvn(sv, PL_oldname, oldlen); |
2d259d92 CK |
630 | begin = ++star; |
631 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
632 | if (*begin) |
633 | sv_catpv(sv,begin); | |
2d259d92 CK |
634 | } |
635 | else { | |
3280af22 | 636 | sv_catpv(sv,PL_inplace); |
2d259d92 | 637 | } |
c623bd54 | 638 | #ifndef FLEXFILENAMES |
b28d0864 NIS |
639 | if (PerlLIO_stat(SvPVX(sv),&PL_statbuf) >= 0 |
640 | && PL_statbuf.st_dev == filedev | |
641 | && PL_statbuf.st_ino == fileino | |
39e571d4 LM |
642 | #ifdef DJGPP |
643 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 | |
644 | #endif | |
f248d071 GS |
645 | ) |
646 | { | |
647 | if (ckWARN_d(WARN_INPLACE)) | |
648 | Perl_warner(aTHX_ WARN_INPLACE, | |
649 | "Can't do inplace edit: %s would not be unique", | |
650 | SvPVX(sv)); | |
79072805 | 651 | do_close(gv,FALSE); |
c623bd54 LW |
652 | continue; |
653 | } | |
654 | #endif | |
fe14fcc3 | 655 | #ifdef HAS_RENAME |
d308986b | 656 | #if !defined(DOSISH) && !defined(__CYGWIN__) |
3280af22 | 657 | if (PerlLIO_rename(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 | 658 | if (ckWARN_d(WARN_INPLACE)) |
a1d180c4 | 659 | Perl_warner(aTHX_ WARN_INPLACE, |
0453d815 PM |
660 | "Can't rename %s to %s: %s, skipping file", |
661 | PL_oldname, SvPVX(sv), Strerror(errno) ); | |
79072805 | 662 | do_close(gv,FALSE); |
c623bd54 LW |
663 | continue; |
664 | } | |
a687059c | 665 | #else |
79072805 | 666 | do_close(gv,FALSE); |
3028581b | 667 | (void)PerlLIO_unlink(SvPVX(sv)); |
b28d0864 | 668 | (void)PerlLIO_rename(PL_oldname,SvPVX(sv)); |
9d116dd7 | 669 | do_open(gv,SvPVX(sv),SvCUR(sv),PL_inplace!=0,O_RDONLY,0,Nullfp); |
55497cff | 670 | #endif /* DOSISH */ |
ff8e2863 | 671 | #else |
463ee0b2 | 672 | (void)UNLINK(SvPVX(sv)); |
b28d0864 | 673 | if (link(PL_oldname,SvPVX(sv)) < 0) { |
0453d815 PM |
674 | if (ckWARN_d(WARN_INPLACE)) |
675 | Perl_warner(aTHX_ WARN_INPLACE, | |
676 | "Can't rename %s to %s: %s, skipping file", | |
677 | PL_oldname, SvPVX(sv), Strerror(errno) ); | |
79072805 | 678 | do_close(gv,FALSE); |
c623bd54 LW |
679 | continue; |
680 | } | |
b28d0864 | 681 | (void)UNLINK(PL_oldname); |
a687059c LW |
682 | #endif |
683 | } | |
684 | else { | |
a8c18271 | 685 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 686 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
3280af22 | 687 | if (UNLINK(PL_oldname) < 0) { |
0453d815 PM |
688 | if (ckWARN_d(WARN_INPLACE)) |
689 | Perl_warner(aTHX_ WARN_INPLACE, | |
690 | "Can't remove %s: %s, skipping file", | |
691 | PL_oldname, Strerror(errno) ); | |
79072805 | 692 | do_close(gv,FALSE); |
fe14fcc3 LW |
693 | continue; |
694 | } | |
edc7bc49 | 695 | # endif |
ff8e2863 | 696 | #else |
cea2e8a9 | 697 | Perl_croak(aTHX_ "Can't do inplace edit without backup"); |
ff8e2863 | 698 | #endif |
a687059c LW |
699 | } |
700 | ||
3280af22 NIS |
701 | sv_setpvn(sv,">",!PL_inplace); |
702 | sv_catpvn(sv,PL_oldname,oldlen); | |
748a9306 | 703 | SETERRNO(0,0); /* in case sprintf set errno */ |
4119ab01 HM |
704 | #ifdef VMS |
705 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, | |
18708f5a | 706 | O_WRONLY|O_CREAT|O_TRUNC,0,Nullfp)) |
4119ab01 | 707 | #else |
3280af22 | 708 | if (!do_open(PL_argvoutgv,SvPVX(sv),SvCUR(sv),PL_inplace!=0, |
18708f5a | 709 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) |
4119ab01 | 710 | #endif |
18708f5a | 711 | { |
0453d815 PM |
712 | if (ckWARN_d(WARN_INPLACE)) |
713 | Perl_warner(aTHX_ WARN_INPLACE, "Can't do inplace edit on %s: %s", | |
714 | PL_oldname, Strerror(errno) ); | |
79072805 | 715 | do_close(gv,FALSE); |
fe14fcc3 LW |
716 | continue; |
717 | } | |
3280af22 NIS |
718 | setdefout(PL_argvoutgv); |
719 | PL_lastfd = PerlIO_fileno(IoIFP(GvIOp(PL_argvoutgv))); | |
720 | (void)PerlLIO_fstat(PL_lastfd,&PL_statbuf); | |
fe14fcc3 | 721 | #ifdef HAS_FCHMOD |
3280af22 | 722 | (void)fchmod(PL_lastfd,PL_filemode); |
a687059c | 723 | #else |
3e3baf6d TB |
724 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
725 | /* Borland runtime creates a readonly file! */ | |
b28d0864 | 726 | (void)PerlLIO_chmod(PL_oldname,PL_filemode); |
3e3baf6d | 727 | # endif |
a687059c | 728 | #endif |
3280af22 | 729 | if (fileuid != PL_statbuf.st_uid || filegid != PL_statbuf.st_gid) { |
fe14fcc3 | 730 | #ifdef HAS_FCHOWN |
3280af22 | 731 | (void)fchown(PL_lastfd,fileuid,filegid); |
a687059c | 732 | #else |
fe14fcc3 | 733 | #ifdef HAS_CHOWN |
b28d0864 | 734 | (void)PerlLIO_chown(PL_oldname,fileuid,filegid); |
a687059c | 735 | #endif |
b1248f16 | 736 | #endif |
fe14fcc3 | 737 | } |
a687059c | 738 | } |
a0d0e21e | 739 | return IoIFP(GvIOp(gv)); |
a687059c | 740 | } |
4d61ec05 | 741 | else { |
4d61ec05 | 742 | if (ckWARN_d(WARN_INPLACE)) { |
6af84f9f GS |
743 | int eno = errno; |
744 | if (PerlLIO_stat(PL_oldname, &PL_statbuf) >= 0 | |
745 | && !S_ISREG(PL_statbuf.st_mode)) | |
746 | { | |
4d61ec05 GS |
747 | Perl_warner(aTHX_ WARN_INPLACE, |
748 | "Can't do inplace edit: %s is not a regular file", | |
9a7dcd9c | 749 | PL_oldname); |
6af84f9f | 750 | } |
4d61ec05 | 751 | else |
9a7dcd9c | 752 | Perl_warner(aTHX_ WARN_INPLACE, "Can't open %s: %s", |
6af84f9f | 753 | PL_oldname, Strerror(eno)); |
4d61ec05 GS |
754 | } |
755 | } | |
a687059c | 756 | } |
18708f5a GS |
757 | if (io && (IoFLAGS(io) & IOf_ARGV)) |
758 | IoFLAGS(io) |= IOf_START; | |
3280af22 NIS |
759 | if (PL_inplace) { |
760 | (void)do_close(PL_argvoutgv,FALSE); | |
7a1c5554 GS |
761 | if (io && (IoFLAGS(io) & IOf_ARGV) |
762 | && PL_argvout_stack && AvFILLp(PL_argvout_stack) >= 0) | |
763 | { | |
18708f5a GS |
764 | GV *oldout = (GV*)av_pop(PL_argvout_stack); |
765 | setdefout(oldout); | |
766 | SvREFCNT_dec(oldout); | |
767 | return Nullfp; | |
768 | } | |
4633a7c4 | 769 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
770 | } |
771 | return Nullfp; | |
772 | } | |
773 | ||
fe14fcc3 | 774 | #ifdef HAS_PIPE |
afd9f252 | 775 | void |
864dbfa3 | 776 | Perl_do_pipe(pTHX_ SV *sv, GV *rgv, GV *wgv) |
afd9f252 | 777 | { |
79072805 LW |
778 | register IO *rstio; |
779 | register IO *wstio; | |
afd9f252 LW |
780 | int fd[2]; |
781 | ||
79072805 | 782 | if (!rgv) |
afd9f252 | 783 | goto badexit; |
79072805 | 784 | if (!wgv) |
afd9f252 LW |
785 | goto badexit; |
786 | ||
a0d0e21e LW |
787 | rstio = GvIOn(rgv); |
788 | wstio = GvIOn(wgv); | |
afd9f252 | 789 | |
a0d0e21e | 790 | if (IoIFP(rstio)) |
79072805 | 791 | do_close(rgv,FALSE); |
a0d0e21e | 792 | if (IoIFP(wstio)) |
79072805 | 793 | do_close(wgv,FALSE); |
afd9f252 | 794 | |
3028581b | 795 | if (PerlProc_pipe(fd) < 0) |
afd9f252 | 796 | goto badexit; |
760ac839 LW |
797 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
798 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); | |
8990e307 | 799 | IoIFP(wstio) = IoOFP(wstio); |
50952442 JH |
800 | IoTYPE(rstio) = IoTYPE_RDONLY; |
801 | IoTYPE(wstio) = IoTYPE_WRONLY; | |
8990e307 | 802 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
760ac839 | 803 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b | 804 | else PerlLIO_close(fd[0]); |
760ac839 | 805 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b | 806 | else PerlLIO_close(fd[1]); |
fe14fcc3 LW |
807 | goto badexit; |
808 | } | |
afd9f252 | 809 | |
3280af22 | 810 | sv_setsv(sv,&PL_sv_yes); |
afd9f252 LW |
811 | return; |
812 | ||
813 | badexit: | |
3280af22 | 814 | sv_setsv(sv,&PL_sv_undef); |
afd9f252 LW |
815 | return; |
816 | } | |
b1248f16 | 817 | #endif |
afd9f252 | 818 | |
517844ec | 819 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 820 | bool |
864dbfa3 | 821 | Perl_do_close(pTHX_ GV *gv, bool not_implicit) |
a687059c | 822 | { |
1193dd27 IZ |
823 | bool retval; |
824 | IO *io; | |
a687059c | 825 | |
79072805 | 826 | if (!gv) |
3280af22 | 827 | gv = PL_argvgv; |
a0d0e21e | 828 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 GS |
829 | if (not_implicit) |
830 | SETERRNO(EBADF,SS$_IVCHAN); | |
c2ab57d4 | 831 | return FALSE; |
99b89507 | 832 | } |
79072805 LW |
833 | io = GvIO(gv); |
834 | if (!io) { /* never opened */ | |
1d2dff63 | 835 | if (not_implicit) { |
2dd78f96 JH |
836 | if (ckWARN(WARN_UNOPENED)) /* no check for closed here */ |
837 | report_evil_fh(gv, io, PL_op->op_type); | |
1d2dff63 GS |
838 | SETERRNO(EBADF,SS$_IVCHAN); |
839 | } | |
a687059c LW |
840 | return FALSE; |
841 | } | |
f2b5be74 | 842 | retval = io_close(io, not_implicit); |
517844ec | 843 | if (not_implicit) { |
1193dd27 IZ |
844 | IoLINES(io) = 0; |
845 | IoPAGE(io) = 0; | |
846 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
847 | } | |
50952442 | 848 | IoTYPE(io) = IoTYPE_CLOSED; |
1193dd27 IZ |
849 | return retval; |
850 | } | |
851 | ||
852 | bool | |
f2b5be74 | 853 | Perl_io_close(pTHX_ IO *io, bool not_implicit) |
1193dd27 IZ |
854 | { |
855 | bool retval = FALSE; | |
856 | int status; | |
857 | ||
8990e307 | 858 | if (IoIFP(io)) { |
50952442 | 859 | if (IoTYPE(io) == IoTYPE_PIPE) { |
3028581b | 860 | status = PerlProc_pclose(IoIFP(io)); |
f2b5be74 GS |
861 | if (not_implicit) { |
862 | STATUS_NATIVE_SET(status); | |
863 | retval = (STATUS_POSIX == 0); | |
864 | } | |
865 | else { | |
866 | retval = (status != -1); | |
867 | } | |
a687059c | 868 | } |
50952442 | 869 | else if (IoTYPE(io) == IoTYPE_STD) |
a687059c LW |
870 | retval = TRUE; |
871 | else { | |
8990e307 | 872 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 LW |
873 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
874 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
875 | } |
876 | else | |
760ac839 | 877 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c | 878 | } |
8990e307 | 879 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 | 880 | } |
f2b5be74 | 881 | else if (not_implicit) { |
20408e3c GS |
882 | SETERRNO(EBADF,SS$_IVCHAN); |
883 | } | |
1193dd27 | 884 | |
a687059c LW |
885 | return retval; |
886 | } | |
887 | ||
888 | bool | |
864dbfa3 | 889 | Perl_do_eof(pTHX_ GV *gv) |
a687059c | 890 | { |
79072805 | 891 | register IO *io; |
a687059c LW |
892 | int ch; |
893 | ||
79072805 | 894 | io = GvIO(gv); |
a687059c | 895 | |
79072805 | 896 | if (!io) |
a687059c | 897 | return TRUE; |
af8c498a | 898 | else if (ckWARN(WARN_IO) |
50952442 | 899 | && (IoTYPE(io) == IoTYPE_WRONLY || IoIFP(io) == PerlIO_stdout() |
af8c498a GS |
900 | || IoIFP(io) == PerlIO_stderr())) |
901 | { | |
2dd78f96 | 902 | /* integrate to report_evil_fh()? */ |
a1d180c4 | 903 | char *name = NULL; |
2dd78f96 JH |
904 | if (isGV(gv)) { |
905 | SV* sv = sv_newmortal(); | |
906 | gv_efullname4(sv, gv, Nullch, FALSE); | |
907 | name = SvPV_nolen(sv); | |
908 | } | |
909 | if (name && *name) | |
910 | Perl_warner(aTHX_ WARN_IO, | |
911 | "Filehandle %s opened only for output", name); | |
912 | else | |
913 | Perl_warner(aTHX_ WARN_IO, | |
914 | "Filehandle opened only for output"); | |
af8c498a | 915 | } |
a687059c | 916 | |
8990e307 | 917 | while (IoIFP(io)) { |
a687059c | 918 | |
760ac839 | 919 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
a20bf0c3 | 920 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ |
760ac839 LW |
921 | return FALSE; /* this is the most usual case */ |
922 | } | |
a687059c | 923 | |
760ac839 | 924 | ch = PerlIO_getc(IoIFP(io)); |
a687059c | 925 | if (ch != EOF) { |
760ac839 | 926 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c LW |
927 | return FALSE; |
928 | } | |
fab3f3a7 | 929 | |
760ac839 | 930 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
a20bf0c3 JH |
931 | if (PerlIO_get_cnt(IoIFP(io)) < -1) |
932 | PerlIO_set_cnt(IoIFP(io),-1); | |
760ac839 | 933 | } |
533c011a | 934 | if (PL_op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
3280af22 | 935 | if (!nextargv(PL_argvgv)) /* get another fp handy */ |
a687059c LW |
936 | return TRUE; |
937 | } | |
938 | else | |
939 | return TRUE; /* normal fp, definitely end of file */ | |
940 | } | |
941 | return TRUE; | |
942 | } | |
943 | ||
5ff3f7a4 | 944 | Off_t |
864dbfa3 | 945 | Perl_do_tell(pTHX_ GV *gv) |
a687059c | 946 | { |
79072805 | 947 | register IO *io; |
96e4d5b1 | 948 | register PerlIO *fp; |
a687059c | 949 | |
96e4d5b1 | 950 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 951 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 | 952 | if (PerlIO_eof(fp)) |
953 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 954 | #endif |
8903cb82 | 955 | return PerlIO_tell(fp); |
96e4d5b1 | 956 | } |
411caa50 JH |
957 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
958 | report_evil_fh(gv, io, PL_op->op_type); | |
748a9306 | 959 | SETERRNO(EBADF,RMS$_IFI); |
5ff3f7a4 | 960 | return (Off_t)-1; |
a687059c LW |
961 | } |
962 | ||
963 | bool | |
864dbfa3 | 964 | Perl_do_seek(pTHX_ GV *gv, Off_t pos, int whence) |
a687059c | 965 | { |
79072805 | 966 | register IO *io; |
137443ea | 967 | register PerlIO *fp; |
a687059c | 968 | |
137443ea | 969 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 970 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea | 971 | if (PerlIO_eof(fp)) |
972 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 973 | #endif |
8903cb82 | 974 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 975 | } |
411caa50 JH |
976 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
977 | report_evil_fh(gv, io, PL_op->op_type); | |
748a9306 | 978 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
979 | return FALSE; |
980 | } | |
981 | ||
97cc44eb | 982 | Off_t |
864dbfa3 | 983 | Perl_do_sysseek(pTHX_ GV *gv, Off_t pos, int whence) |
8903cb82 | 984 | { |
985 | register IO *io; | |
986 | register PerlIO *fp; | |
987 | ||
988 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) | |
3028581b | 989 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
411caa50 JH |
990 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
991 | report_evil_fh(gv, io, PL_op->op_type); | |
8903cb82 | 992 | SETERRNO(EBADF,RMS$_IFI); |
d9b3e12d | 993 | return (Off_t)-1; |
8903cb82 | 994 | } |
995 | ||
6ff81951 | 996 | int |
16fe6d59 GS |
997 | Perl_mode_from_discipline(pTHX_ SV *discp) |
998 | { | |
999 | int mode = O_BINARY; | |
1000 | if (discp) { | |
1001 | STRLEN len; | |
1002 | char *s = SvPV(discp,len); | |
1003 | while (*s) { | |
1004 | if (*s == ':') { | |
1005 | switch (s[1]) { | |
1006 | case 'r': | |
1007 | if (len > 3 && strnEQ(s+1, "raw", 3) | |
1008 | && (!s[4] || s[4] == ':' || isSPACE(s[4]))) | |
1009 | { | |
1010 | mode = O_BINARY; | |
1011 | s += 4; | |
1012 | len -= 4; | |
1013 | break; | |
1014 | } | |
1015 | /* FALL THROUGH */ | |
1016 | case 'c': | |
1017 | if (len > 4 && strnEQ(s+1, "crlf", 4) | |
1018 | && (!s[5] || s[5] == ':' || isSPACE(s[5]))) | |
1019 | { | |
1020 | mode = O_TEXT; | |
1021 | s += 5; | |
1022 | len -= 5; | |
1023 | break; | |
1024 | } | |
1025 | /* FALL THROUGH */ | |
1026 | default: | |
1027 | goto fail_discipline; | |
1028 | } | |
1029 | } | |
1030 | else if (isSPACE(*s)) { | |
1031 | ++s; | |
1032 | --len; | |
1033 | } | |
1034 | else { | |
1035 | char *end; | |
1036 | fail_discipline: | |
1037 | end = strchr(s+1, ':'); | |
1038 | if (!end) | |
1039 | end = s+len; | |
60382766 | 1040 | #ifndef PERLIO_LAYERS |
16fe6d59 | 1041 | Perl_croak(aTHX_ "Unknown discipline '%.*s'", end-s, s); |
60382766 NIS |
1042 | #else |
1043 | s = end; | |
1044 | #endif | |
16fe6d59 GS |
1045 | } |
1046 | } | |
1047 | } | |
1048 | return mode; | |
1049 | } | |
1050 | ||
1051 | int | |
1052 | Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode) | |
6ff81951 | 1053 | { |
60382766 NIS |
1054 | /* The old body of this is now in non-LAYER part of perlio.c |
1055 | * This is a stub for any XS code which might have been calling it. | |
1056 | */ | |
1057 | char *name = (O_BINARY != O_TEXT && !(mode & O_BINARY)) ? ":crlf" : ":raw"; | |
1058 | return PerlIO_binmode(aTHX_ fp, iotype, mode, name); | |
6ff81951 GS |
1059 | } |
1060 | ||
a0d0e21e | 1061 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 1062 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 1063 | #define HAS_CHSIZE |
6eb13c3b | 1064 | |
517844ec | 1065 | I32 my_chsize(fd, length) |
79072805 | 1066 | I32 fd; /* file descriptor */ |
85e6fe83 | 1067 | Off_t length; /* length to set file to */ |
6eb13c3b | 1068 | { |
6eb13c3b LW |
1069 | struct flock fl; |
1070 | struct stat filebuf; | |
1071 | ||
3028581b | 1072 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
1073 | return -1; |
1074 | ||
1075 | if (filebuf.st_size < length) { | |
1076 | ||
1077 | /* extend file length */ | |
1078 | ||
3028581b | 1079 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
1080 | return -1; |
1081 | ||
1082 | /* write a "0" byte */ | |
1083 | ||
3028581b | 1084 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
1085 | return -1; |
1086 | } | |
1087 | else { | |
1088 | /* truncate length */ | |
1089 | ||
1090 | fl.l_whence = 0; | |
1091 | fl.l_len = 0; | |
1092 | fl.l_start = length; | |
a0d0e21e | 1093 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
1094 | |
1095 | /* | |
a0d0e21e | 1096 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
1097 | * fcntl(2), which truncates the file so that it ends at the |
1098 | * position indicated by fl.l_start. | |
1099 | * | |
1100 | * Will minor miracles never cease? | |
1101 | */ | |
1102 | ||
a0d0e21e | 1103 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
1104 | return -1; |
1105 | ||
1106 | } | |
1107 | ||
1108 | return 0; | |
1109 | } | |
a0d0e21e | 1110 | #endif /* F_FREESP */ |
ff8e2863 | 1111 | |
a687059c | 1112 | bool |
864dbfa3 | 1113 | Perl_do_print(pTHX_ register SV *sv, PerlIO *fp) |
a687059c LW |
1114 | { |
1115 | register char *tmps; | |
463ee0b2 | 1116 | STRLEN len; |
a687059c | 1117 | |
79072805 LW |
1118 | /* assuming fp is checked earlier */ |
1119 | if (!sv) | |
1120 | return TRUE; | |
3280af22 | 1121 | if (PL_ofmt) { |
8990e307 | 1122 | if (SvGMAGICAL(sv)) |
79072805 | 1123 | mg_get(sv); |
463ee0b2 | 1124 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
65202027 | 1125 | PerlIO_printf(fp, PL_ofmt, (NV)SvIVX(sv)); |
760ac839 | 1126 | return !PerlIO_error(fp); |
79072805 | 1127 | } |
463ee0b2 | 1128 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 1129 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
3280af22 | 1130 | PerlIO_printf(fp, PL_ofmt, SvNVX(sv)); |
760ac839 | 1131 | return !PerlIO_error(fp); |
79072805 | 1132 | } |
a687059c | 1133 | } |
79072805 LW |
1134 | switch (SvTYPE(sv)) { |
1135 | case SVt_NULL: | |
411caa50 JH |
1136 | if (ckWARN(WARN_UNINITIALIZED)) |
1137 | report_uninit(); | |
ff8e2863 | 1138 | return TRUE; |
79072805 | 1139 | case SVt_IV: |
a0d0e21e LW |
1140 | if (SvIOK(sv)) { |
1141 | if (SvGMAGICAL(sv)) | |
1142 | mg_get(sv); | |
cf2093f6 | 1143 | if (SvIsUV(sv)) |
57def98f | 1144 | PerlIO_printf(fp, "%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 1145 | else |
57def98f | 1146 | PerlIO_printf(fp, "%"IVdf, (IV)SvIVX(sv)); |
760ac839 | 1147 | return !PerlIO_error(fp); |
a0d0e21e LW |
1148 | } |
1149 | /* FALL THROUGH */ | |
79072805 | 1150 | default: |
7d59b7e4 NIS |
1151 | if (PerlIO_isutf8(fp)) { |
1152 | tmps = SvPVutf8(sv, len); | |
1153 | } | |
1154 | else { | |
1155 | if (DO_UTF8(sv)) | |
1156 | sv_utf8_downgrade(sv, FALSE); | |
1157 | tmps = SvPV(sv, len); | |
1158 | } | |
79072805 | 1159 | break; |
ff8e2863 | 1160 | } |
94e4c244 JH |
1161 | /* To detect whether the process is about to overstep its |
1162 | * filesize limit we would need getrlimit(). We could then | |
1163 | * also transparently raise the limit with setrlimit() -- | |
1164 | * but only until the system hard limit/the filesystem limit, | |
c5dd3cdd JH |
1165 | * at which we would get EPERM. Note that when using buffered |
1166 | * io the write failure can be delayed until the flush/close. --jhi */ | |
a21ac455 | 1167 | if (len && (PerlIO_write(fp,tmps,len) == 0)) |
a687059c | 1168 | return FALSE; |
760ac839 | 1169 | return !PerlIO_error(fp); |
a687059c LW |
1170 | } |
1171 | ||
79072805 | 1172 | I32 |
cea2e8a9 | 1173 | Perl_my_stat(pTHX) |
a687059c | 1174 | { |
4e35701f | 1175 | djSP; |
79072805 | 1176 | IO *io; |
2dd78f96 | 1177 | GV* gv; |
79072805 | 1178 | |
533c011a | 1179 | if (PL_op->op_flags & OPf_REF) { |
924508f0 | 1180 | EXTEND(SP,1); |
2dd78f96 | 1181 | gv = cGVOP_gv; |
748a9306 | 1182 | do_fstat: |
2dd78f96 | 1183 | io = GvIO(gv); |
8990e307 | 1184 | if (io && IoIFP(io)) { |
2dd78f96 | 1185 | PL_statgv = gv; |
3280af22 NIS |
1186 | sv_setpv(PL_statname,""); |
1187 | PL_laststype = OP_STAT; | |
1188 | return (PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache)); | |
a687059c LW |
1189 | } |
1190 | else { | |
2dd78f96 | 1191 | if (gv == PL_defgv) |
3280af22 | 1192 | return PL_laststatval; |
2dd78f96 JH |
1193 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
1194 | report_evil_fh(gv, io, PL_op->op_type); | |
3280af22 NIS |
1195 | PL_statgv = Nullgv; |
1196 | sv_setpv(PL_statname,""); | |
1197 | return (PL_laststatval = -1); | |
a687059c LW |
1198 | } |
1199 | } | |
1200 | else { | |
748a9306 | 1201 | SV* sv = POPs; |
4b74e3fb | 1202 | char *s; |
2d8e6c8d | 1203 | STRLEN n_a; |
79072805 | 1204 | PUTBACK; |
748a9306 | 1205 | if (SvTYPE(sv) == SVt_PVGV) { |
2dd78f96 | 1206 | gv = (GV*)sv; |
748a9306 LW |
1207 | goto do_fstat; |
1208 | } | |
1209 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
2dd78f96 | 1210 | gv = (GV*)SvRV(sv); |
748a9306 LW |
1211 | goto do_fstat; |
1212 | } | |
1213 | ||
2d8e6c8d | 1214 | s = SvPV(sv, n_a); |
3280af22 NIS |
1215 | PL_statgv = Nullgv; |
1216 | sv_setpv(PL_statname, s); | |
1217 | PL_laststype = OP_STAT; | |
1218 | PL_laststatval = PerlLIO_stat(s, &PL_statcache); | |
599cee73 | 1219 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(s, '\n')) |
cea2e8a9 | 1220 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat"); |
3280af22 | 1221 | return PL_laststatval; |
a687059c LW |
1222 | } |
1223 | } | |
1224 | ||
79072805 | 1225 | I32 |
cea2e8a9 | 1226 | Perl_my_lstat(pTHX) |
c623bd54 | 1227 | { |
4e35701f | 1228 | djSP; |
79072805 | 1229 | SV *sv; |
2d8e6c8d | 1230 | STRLEN n_a; |
533c011a | 1231 | if (PL_op->op_flags & OPf_REF) { |
924508f0 | 1232 | EXTEND(SP,1); |
638eceb6 | 1233 | if (cGVOP_gv == PL_defgv) { |
3280af22 | 1234 | if (PL_laststype != OP_LSTAT) |
cea2e8a9 | 1235 | Perl_croak(aTHX_ "The stat preceding -l _ wasn't an lstat"); |
3280af22 | 1236 | return PL_laststatval; |
fe14fcc3 | 1237 | } |
cea2e8a9 | 1238 | Perl_croak(aTHX_ "You can't use -l on a filehandle"); |
fe14fcc3 | 1239 | } |
c623bd54 | 1240 | |
3280af22 NIS |
1241 | PL_laststype = OP_LSTAT; |
1242 | PL_statgv = Nullgv; | |
79072805 LW |
1243 | sv = POPs; |
1244 | PUTBACK; | |
2d8e6c8d | 1245 | sv_setpv(PL_statname,SvPV(sv, n_a)); |
2d8e6c8d | 1246 | PL_laststatval = PerlLIO_lstat(SvPV(sv, n_a),&PL_statcache); |
2d8e6c8d | 1247 | if (PL_laststatval < 0 && ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n')) |
cea2e8a9 | 1248 | Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "lstat"); |
3280af22 | 1249 | return PL_laststatval; |
c623bd54 LW |
1250 | } |
1251 | ||
a687059c | 1252 | bool |
864dbfa3 | 1253 | Perl_do_aexec(pTHX_ SV *really, register SV **mark, register SV **sp) |
a687059c | 1254 | { |
d5a9bfb0 IZ |
1255 | return do_aexec5(really, mark, sp, 0, 0); |
1256 | } | |
1257 | ||
1258 | bool | |
2aa1486d GS |
1259 | Perl_do_aexec5(pTHX_ SV *really, register SV **mark, register SV **sp, |
1260 | int fd, int do_report) | |
d5a9bfb0 | 1261 | { |
cd39f2b6 JH |
1262 | #ifdef MACOS_TRADITIONAL |
1263 | Perl_croak(aTHX_ "exec? I'm not *that* kind of operating system"); | |
1264 | #else | |
a687059c | 1265 | register char **a; |
a687059c | 1266 | char *tmps; |
2d8e6c8d | 1267 | STRLEN n_a; |
a687059c | 1268 | |
79072805 | 1269 | if (sp > mark) { |
3280af22 NIS |
1270 | New(401,PL_Argv, sp - mark + 1, char*); |
1271 | a = PL_Argv; | |
79072805 LW |
1272 | while (++mark <= sp) { |
1273 | if (*mark) | |
2d8e6c8d | 1274 | *a++ = SvPVx(*mark, n_a); |
a687059c LW |
1275 | else |
1276 | *a++ = ""; | |
1277 | } | |
1278 | *a = Nullch; | |
3280af22 | 1279 | if (*PL_Argv[0] != '/') /* will execvp use PATH? */ |
79072805 | 1280 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
2d8e6c8d | 1281 | if (really && *(tmps = SvPV(really, n_a))) |
b4748376 | 1282 | PerlProc_execvp(tmps,EXEC_ARGV_CAST(PL_Argv)); |
a687059c | 1283 | else |
b4748376 | 1284 | PerlProc_execvp(PL_Argv[0],EXEC_ARGV_CAST(PL_Argv)); |
599cee73 | 1285 | if (ckWARN(WARN_EXEC)) |
a1d180c4 | 1286 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
599cee73 | 1287 | PL_Argv[0], Strerror(errno)); |
d5a9bfb0 IZ |
1288 | if (do_report) { |
1289 | int e = errno; | |
1290 | ||
1291 | PerlLIO_write(fd, (void*)&e, sizeof(int)); | |
1292 | PerlLIO_close(fd); | |
1293 | } | |
a687059c | 1294 | } |
bee1dbe2 | 1295 | do_execfree(); |
cd39f2b6 | 1296 | #endif |
a687059c LW |
1297 | return FALSE; |
1298 | } | |
1299 | ||
fe14fcc3 | 1300 | void |
864dbfa3 | 1301 | Perl_do_execfree(pTHX) |
ff8e2863 | 1302 | { |
3280af22 NIS |
1303 | if (PL_Argv) { |
1304 | Safefree(PL_Argv); | |
1305 | PL_Argv = Null(char **); | |
ff8e2863 | 1306 | } |
3280af22 NIS |
1307 | if (PL_Cmd) { |
1308 | Safefree(PL_Cmd); | |
1309 | PL_Cmd = Nullch; | |
ff8e2863 LW |
1310 | } |
1311 | } | |
1312 | ||
cd39f2b6 | 1313 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
760ac839 | 1314 | |
a687059c | 1315 | bool |
864dbfa3 | 1316 | Perl_do_exec(pTHX_ char *cmd) |
a687059c | 1317 | { |
e446cec8 IZ |
1318 | return do_exec3(cmd,0,0); |
1319 | } | |
1320 | ||
1321 | bool | |
864dbfa3 | 1322 | Perl_do_exec3(pTHX_ char *cmd, int fd, int do_report) |
e446cec8 | 1323 | { |
a687059c LW |
1324 | register char **a; |
1325 | register char *s; | |
a687059c LW |
1326 | char flags[10]; |
1327 | ||
748a9306 LW |
1328 | while (*cmd && isSPACE(*cmd)) |
1329 | cmd++; | |
1330 | ||
a687059c LW |
1331 | /* save an extra exec if possible */ |
1332 | ||
bf38876a | 1333 | #ifdef CSH |
3280af22 | 1334 | if (strnEQ(cmd,PL_cshname,PL_cshlen) && strnEQ(cmd+PL_cshlen," -c",3)) { |
a687059c | 1335 | strcpy(flags,"-c"); |
3280af22 | 1336 | s = cmd+PL_cshlen+3; |
a687059c LW |
1337 | if (*s == 'f') { |
1338 | s++; | |
1339 | strcat(flags,"f"); | |
1340 | } | |
1341 | if (*s == ' ') | |
1342 | s++; | |
1343 | if (*s++ == '\'') { | |
1344 | char *ncmd = s; | |
1345 | ||
1346 | while (*s) | |
1347 | s++; | |
1348 | if (s[-1] == '\n') | |
1349 | *--s = '\0'; | |
1350 | if (s[-1] == '\'') { | |
1351 | *--s = '\0'; | |
3280af22 | 1352 | PerlProc_execl(PL_cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
1353 | *s = '\''; |
1354 | return FALSE; | |
1355 | } | |
1356 | } | |
1357 | } | |
bf38876a | 1358 | #endif /* CSH */ |
a687059c LW |
1359 | |
1360 | /* see if there are shell metacharacters in it */ | |
1361 | ||
748a9306 LW |
1362 | if (*cmd == '.' && isSPACE(cmd[1])) |
1363 | goto doshell; | |
1364 | ||
1365 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
1366 | goto doshell; | |
1367 | ||
c170e444 | 1368 | for (s = cmd; *s && isALNUM(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1369 | if (*s == '=') |
1370 | goto doshell; | |
748a9306 | 1371 | |
a687059c | 1372 | for (s = cmd; *s; s++) { |
93a17b20 | 1373 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
1374 | if (*s == '\n' && !s[1]) { |
1375 | *s = '\0'; | |
1376 | break; | |
1377 | } | |
603a98b0 IZ |
1378 | /* handle the 2>&1 construct at the end */ |
1379 | if (*s == '>' && s[1] == '&' && s[2] == '1' | |
1380 | && s > cmd + 1 && s[-1] == '2' && isSPACE(s[-2]) | |
1381 | && (!s[3] || isSPACE(s[3]))) | |
1382 | { | |
1383 | char *t = s + 3; | |
1384 | ||
1385 | while (*t && isSPACE(*t)) | |
1386 | ++t; | |
1387 | if (!*t && (dup2(1,2) != -1)) { | |
1388 | s[-2] = '\0'; | |
1389 | break; | |
1390 | } | |
1391 | } | |
a687059c | 1392 | doshell: |
3280af22 | 1393 | PerlProc_execl(PL_sh_path, "sh", "-c", cmd, (char*)0); |
a687059c LW |
1394 | return FALSE; |
1395 | } | |
1396 | } | |
748a9306 | 1397 | |
3280af22 NIS |
1398 | New(402,PL_Argv, (s - cmd) / 2 + 2, char*); |
1399 | PL_Cmd = savepvn(cmd, s-cmd); | |
1400 | a = PL_Argv; | |
1401 | for (s = PL_Cmd; *s;) { | |
99b89507 | 1402 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1403 | if (*s) |
1404 | *(a++) = s; | |
99b89507 | 1405 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1406 | if (*s) |
1407 | *s++ = '\0'; | |
1408 | } | |
1409 | *a = Nullch; | |
3280af22 NIS |
1410 | if (PL_Argv[0]) { |
1411 | PerlProc_execvp(PL_Argv[0],PL_Argv); | |
b1248f16 | 1412 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1413 | do_execfree(); |
a687059c | 1414 | goto doshell; |
b1248f16 | 1415 | } |
d008e5eb | 1416 | { |
e446cec8 IZ |
1417 | int e = errno; |
1418 | ||
d008e5eb | 1419 | if (ckWARN(WARN_EXEC)) |
a1d180c4 | 1420 | Perl_warner(aTHX_ WARN_EXEC, "Can't exec \"%s\": %s", |
d008e5eb | 1421 | PL_Argv[0], Strerror(errno)); |
e446cec8 IZ |
1422 | if (do_report) { |
1423 | PerlLIO_write(fd, (void*)&e, sizeof(int)); | |
1424 | PerlLIO_close(fd); | |
1425 | } | |
d008e5eb | 1426 | } |
a687059c | 1427 | } |
ff8e2863 | 1428 | do_execfree(); |
a687059c LW |
1429 | return FALSE; |
1430 | } | |
1431 | ||
6890e559 | 1432 | #endif /* OS2 || WIN32 */ |
760ac839 | 1433 | |
79072805 | 1434 | I32 |
864dbfa3 | 1435 | Perl_apply(pTHX_ I32 type, register SV **mark, register SV **sp) |
a687059c | 1436 | { |
79072805 LW |
1437 | register I32 val; |
1438 | register I32 val2; | |
1439 | register I32 tot = 0; | |
20408e3c | 1440 | char *what; |
a687059c | 1441 | char *s; |
79072805 | 1442 | SV **oldmark = mark; |
2d8e6c8d | 1443 | STRLEN n_a; |
a687059c | 1444 | |
20408e3c | 1445 | #define APPLY_TAINT_PROPER() \ |
3280af22 | 1446 | STMT_START { \ |
17406bd6 | 1447 | if (PL_tainted) { TAINT_PROPER(what); } \ |
873ef191 | 1448 | } STMT_END |
20408e3c GS |
1449 | |
1450 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
3280af22 | 1451 | if (PL_tainting) { |
463ee0b2 | 1452 | while (++mark <= sp) { |
bbce6d69 | 1453 | if (SvTAINTED(*mark)) { |
1454 | TAINT; | |
1455 | break; | |
1456 | } | |
463ee0b2 LW |
1457 | } |
1458 | mark = oldmark; | |
1459 | } | |
a687059c | 1460 | switch (type) { |
79072805 | 1461 | case OP_CHMOD: |
20408e3c GS |
1462 | what = "chmod"; |
1463 | APPLY_TAINT_PROPER(); | |
79072805 | 1464 | if (++mark <= sp) { |
463ee0b2 | 1465 | val = SvIVx(*mark); |
20408e3c GS |
1466 | APPLY_TAINT_PROPER(); |
1467 | tot = sp - mark; | |
79072805 | 1468 | while (++mark <= sp) { |
2d8e6c8d | 1469 | char *name = SvPVx(*mark, n_a); |
20408e3c GS |
1470 | APPLY_TAINT_PROPER(); |
1471 | if (PerlLIO_chmod(name, val)) | |
a687059c LW |
1472 | tot--; |
1473 | } | |
1474 | } | |
1475 | break; | |
fe14fcc3 | 1476 | #ifdef HAS_CHOWN |
79072805 | 1477 | case OP_CHOWN: |
20408e3c GS |
1478 | what = "chown"; |
1479 | APPLY_TAINT_PROPER(); | |
79072805 | 1480 | if (sp - mark > 2) { |
463ee0b2 LW |
1481 | val = SvIVx(*++mark); |
1482 | val2 = SvIVx(*++mark); | |
20408e3c | 1483 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1484 | tot = sp - mark; |
79072805 | 1485 | while (++mark <= sp) { |
2d8e6c8d | 1486 | char *name = SvPVx(*mark, n_a); |
20408e3c | 1487 | APPLY_TAINT_PROPER(); |
36660982 | 1488 | if (PerlLIO_chown(name, val, val2)) |
a687059c LW |
1489 | tot--; |
1490 | } | |
1491 | } | |
1492 | break; | |
b1248f16 | 1493 | #endif |
a1d180c4 | 1494 | /* |
dd64f1c3 AD |
1495 | XXX Should we make lchown() directly available from perl? |
1496 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1497 | nothing in the core. | |
1498 | --AD 5/1998 | |
1499 | */ | |
fe14fcc3 | 1500 | #ifdef HAS_KILL |
79072805 | 1501 | case OP_KILL: |
20408e3c GS |
1502 | what = "kill"; |
1503 | APPLY_TAINT_PROPER(); | |
55497cff | 1504 | if (mark == sp) |
1505 | break; | |
2d8e6c8d | 1506 | s = SvPVx(*++mark, n_a); |
79072805 LW |
1507 | if (isUPPER(*s)) { |
1508 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') | |
1509 | s += 3; | |
1510 | if (!(val = whichsig(s))) | |
cea2e8a9 | 1511 | Perl_croak(aTHX_ "Unrecognized signal name \"%s\"",s); |
79072805 LW |
1512 | } |
1513 | else | |
463ee0b2 | 1514 | val = SvIVx(*mark); |
20408e3c GS |
1515 | APPLY_TAINT_PROPER(); |
1516 | tot = sp - mark; | |
3595fcef | 1517 | #ifdef VMS |
1518 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
1519 | if (val < 0) val = -val; | |
1520 | if (val == SIGKILL) { | |
1521 | # include <starlet.h> | |
1522 | /* Use native sys$delprc() to insure that target process is | |
1523 | * deleted; supervisor-mode images don't pay attention to | |
1524 | * CRTL's emulation of Unix-style signals and kill() | |
1525 | */ | |
1526 | while (++mark <= sp) { | |
1527 | I32 proc = SvIVx(*mark); | |
1528 | register unsigned long int __vmssts; | |
20408e3c | 1529 | APPLY_TAINT_PROPER(); |
3595fcef | 1530 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1531 | tot--; | |
1532 | switch (__vmssts) { | |
1533 | case SS$_NONEXPR: | |
1534 | case SS$_NOSUCHNODE: | |
1535 | SETERRNO(ESRCH,__vmssts); | |
1536 | break; | |
1537 | case SS$_NOPRIV: | |
1538 | SETERRNO(EPERM,__vmssts); | |
1539 | break; | |
1540 | default: | |
1541 | SETERRNO(EVMSERR,__vmssts); | |
1542 | } | |
1543 | } | |
1544 | } | |
1545 | break; | |
1546 | } | |
1547 | #endif | |
79072805 LW |
1548 | if (val < 0) { |
1549 | val = -val; | |
1550 | while (++mark <= sp) { | |
463ee0b2 | 1551 | I32 proc = SvIVx(*mark); |
20408e3c | 1552 | APPLY_TAINT_PROPER(); |
fe14fcc3 | 1553 | #ifdef HAS_KILLPG |
3028581b | 1554 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c | 1555 | #else |
3028581b | 1556 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c | 1557 | #endif |
79072805 | 1558 | tot--; |
a687059c | 1559 | } |
79072805 LW |
1560 | } |
1561 | else { | |
1562 | while (++mark <= sp) { | |
20408e3c GS |
1563 | I32 proc = SvIVx(*mark); |
1564 | APPLY_TAINT_PROPER(); | |
1565 | if (PerlProc_kill(proc, val)) | |
79072805 | 1566 | tot--; |
a687059c LW |
1567 | } |
1568 | } | |
1569 | break; | |
b1248f16 | 1570 | #endif |
79072805 | 1571 | case OP_UNLINK: |
20408e3c GS |
1572 | what = "unlink"; |
1573 | APPLY_TAINT_PROPER(); | |
79072805 LW |
1574 | tot = sp - mark; |
1575 | while (++mark <= sp) { | |
2d8e6c8d | 1576 | s = SvPVx(*mark, n_a); |
20408e3c | 1577 | APPLY_TAINT_PROPER(); |
3280af22 | 1578 | if (PL_euid || PL_unsafe) { |
a687059c LW |
1579 | if (UNLINK(s)) |
1580 | tot--; | |
1581 | } | |
1582 | else { /* don't let root wipe out directories without -U */ | |
3280af22 | 1583 | if (PerlLIO_lstat(s,&PL_statbuf) < 0 || S_ISDIR(PL_statbuf.st_mode)) |
a687059c LW |
1584 | tot--; |
1585 | else { | |
1586 | if (UNLINK(s)) | |
1587 | tot--; | |
1588 | } | |
1589 | } | |
1590 | } | |
1591 | break; | |
a0d0e21e | 1592 | #ifdef HAS_UTIME |
79072805 | 1593 | case OP_UTIME: |
20408e3c GS |
1594 | what = "utime"; |
1595 | APPLY_TAINT_PROPER(); | |
79072805 | 1596 | if (sp - mark > 2) { |
748a9306 | 1597 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1598 | struct utimbuf utbuf; |
1599 | #else | |
a687059c | 1600 | struct { |
dd2821f6 GS |
1601 | Time_t actime; |
1602 | Time_t modtime; | |
a687059c | 1603 | } utbuf; |
663a0e37 | 1604 | #endif |
a687059c | 1605 | |
afd9f252 | 1606 | Zero(&utbuf, sizeof utbuf, char); |
517844ec | 1607 | #ifdef BIG_TIME |
dd2821f6 GS |
1608 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ |
1609 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ | |
517844ec | 1610 | #else |
dd2821f6 GS |
1611 | utbuf.actime = (Time_t)SvIVx(*++mark); /* time accessed */ |
1612 | utbuf.modtime = (Time_t)SvIVx(*++mark); /* time modified */ | |
517844ec | 1613 | #endif |
20408e3c | 1614 | APPLY_TAINT_PROPER(); |
79072805 LW |
1615 | tot = sp - mark; |
1616 | while (++mark <= sp) { | |
2d8e6c8d | 1617 | char *name = SvPVx(*mark, n_a); |
20408e3c GS |
1618 | APPLY_TAINT_PROPER(); |
1619 | if (PerlLIO_utime(name, &utbuf)) | |
a687059c LW |
1620 | tot--; |
1621 | } | |
a687059c LW |
1622 | } |
1623 | else | |
79072805 | 1624 | tot = 0; |
a687059c | 1625 | break; |
a0d0e21e | 1626 | #endif |
a687059c LW |
1627 | } |
1628 | return tot; | |
20408e3c | 1629 | |
20408e3c | 1630 | #undef APPLY_TAINT_PROPER |
a687059c LW |
1631 | } |
1632 | ||
1633 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1634 | #ifndef VMS /* VMS' cando is in vms.c */ |
7f4774ae JH |
1635 | bool |
1636 | Perl_cando(pTHX_ Mode_t mode, Uid_t effective, register Stat_t *statbufp) | |
1637 | /* Note: we use `effective' both for uids and gids. | |
1638 | * Here we are betting on Uid_t being equal or wider than Gid_t. */ | |
a687059c | 1639 | { |
bee1dbe2 | 1640 | #ifdef DOSISH |
fe14fcc3 LW |
1641 | /* [Comments and code from Len Reed] |
1642 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1643 | * to write-protected files. The execute permission bit is set | |
1644 | * by the Miscrosoft C library stat() function for the following: | |
1645 | * .exe files | |
1646 | * .com files | |
1647 | * .bat files | |
1648 | * directories | |
1649 | * All files and directories are readable. | |
1650 | * Directories and special files, e.g. "CON", cannot be | |
1651 | * write-protected. | |
1652 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1653 | * bit set in the file system, but DOS permits changes to | |
1654 | * the directory anyway. In addition, all bets are off | |
1655 | * here for networked software, such as Novell and | |
1656 | * Sun's PC-NFS.] | |
1657 | */ | |
1658 | ||
bee1dbe2 LW |
1659 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1660 | * too so it will actually look into the files for magic numbers | |
1661 | */ | |
7f4774ae | 1662 | return (mode & statbufp->st_mode) ? TRUE : FALSE; |
fe14fcc3 | 1663 | |
55497cff | 1664 | #else /* ! DOSISH */ |
3280af22 | 1665 | if ((effective ? PL_euid : PL_uid) == 0) { /* root is special */ |
7f4774ae | 1666 | if (mode == S_IXUSR) { |
c623bd54 | 1667 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) |
a687059c LW |
1668 | return TRUE; |
1669 | } | |
1670 | else | |
1671 | return TRUE; /* root reads and writes anything */ | |
1672 | return FALSE; | |
1673 | } | |
3280af22 | 1674 | if (statbufp->st_uid == (effective ? PL_euid : PL_uid) ) { |
7f4774ae | 1675 | if (statbufp->st_mode & mode) |
a687059c LW |
1676 | return TRUE; /* ok as "user" */ |
1677 | } | |
d8eceb89 | 1678 | else if (ingroup(statbufp->st_gid,effective)) { |
7f4774ae | 1679 | if (statbufp->st_mode & mode >> 3) |
a687059c LW |
1680 | return TRUE; /* ok as "group" */ |
1681 | } | |
7f4774ae | 1682 | else if (statbufp->st_mode & mode >> 6) |
a687059c LW |
1683 | return TRUE; /* ok as "other" */ |
1684 | return FALSE; | |
55497cff | 1685 | #endif /* ! DOSISH */ |
a687059c | 1686 | } |
a0d0e21e | 1687 | #endif /* ! VMS */ |
a687059c | 1688 | |
d8eceb89 JH |
1689 | bool |
1690 | Perl_ingroup(pTHX_ Gid_t testgid, Uid_t effective) | |
a687059c | 1691 | { |
cd39f2b6 JH |
1692 | #ifdef MACOS_TRADITIONAL |
1693 | /* This is simply not correct for AppleShare, but fix it yerself. */ | |
1694 | return TRUE; | |
1695 | #else | |
3280af22 | 1696 | if (testgid == (effective ? PL_egid : PL_gid)) |
a687059c | 1697 | return TRUE; |
fe14fcc3 | 1698 | #ifdef HAS_GETGROUPS |
a687059c LW |
1699 | #ifndef NGROUPS |
1700 | #define NGROUPS 32 | |
1701 | #endif | |
1702 | { | |
a0d0e21e | 1703 | Groups_t gary[NGROUPS]; |
79072805 | 1704 | I32 anum; |
a687059c LW |
1705 | |
1706 | anum = getgroups(NGROUPS,gary); | |
1707 | while (--anum >= 0) | |
1708 | if (gary[anum] == testgid) | |
1709 | return TRUE; | |
1710 | } | |
1711 | #endif | |
1712 | return FALSE; | |
cd39f2b6 | 1713 | #endif |
a687059c | 1714 | } |
c2ab57d4 | 1715 | |
fe14fcc3 | 1716 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1717 | |
79072805 | 1718 | I32 |
864dbfa3 | 1719 | Perl_do_ipcget(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1720 | { |
c2ab57d4 | 1721 | key_t key; |
79072805 | 1722 | I32 n, flags; |
c2ab57d4 | 1723 | |
463ee0b2 LW |
1724 | key = (key_t)SvNVx(*++mark); |
1725 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1726 | flags = SvIVx(*++mark); | |
748a9306 | 1727 | SETERRNO(0,0); |
c2ab57d4 LW |
1728 | switch (optype) |
1729 | { | |
fe14fcc3 | 1730 | #ifdef HAS_MSG |
79072805 | 1731 | case OP_MSGGET: |
c2ab57d4 | 1732 | return msgget(key, flags); |
e5d73d77 | 1733 | #endif |
fe14fcc3 | 1734 | #ifdef HAS_SEM |
79072805 | 1735 | case OP_SEMGET: |
c2ab57d4 | 1736 | return semget(key, n, flags); |
e5d73d77 | 1737 | #endif |
fe14fcc3 | 1738 | #ifdef HAS_SHM |
79072805 | 1739 | case OP_SHMGET: |
c2ab57d4 | 1740 | return shmget(key, n, flags); |
e5d73d77 | 1741 | #endif |
fe14fcc3 | 1742 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1743 | default: |
cea2e8a9 | 1744 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 1745 | #endif |
c2ab57d4 LW |
1746 | } |
1747 | return -1; /* should never happen */ | |
1748 | } | |
1749 | ||
79072805 | 1750 | I32 |
864dbfa3 | 1751 | Perl_do_ipcctl(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1752 | { |
79072805 | 1753 | SV *astr; |
c2ab57d4 | 1754 | char *a; |
a0d0e21e LW |
1755 | I32 id, n, cmd, infosize, getinfo; |
1756 | I32 ret = -1; | |
c2ab57d4 | 1757 | |
463ee0b2 LW |
1758 | id = SvIVx(*++mark); |
1759 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1760 | cmd = SvIVx(*++mark); | |
79072805 | 1761 | astr = *++mark; |
c2ab57d4 LW |
1762 | infosize = 0; |
1763 | getinfo = (cmd == IPC_STAT); | |
1764 | ||
1765 | switch (optype) | |
1766 | { | |
fe14fcc3 | 1767 | #ifdef HAS_MSG |
79072805 | 1768 | case OP_MSGCTL: |
c2ab57d4 LW |
1769 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1770 | infosize = sizeof(struct msqid_ds); | |
1771 | break; | |
e5d73d77 | 1772 | #endif |
fe14fcc3 | 1773 | #ifdef HAS_SHM |
79072805 | 1774 | case OP_SHMCTL: |
c2ab57d4 LW |
1775 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1776 | infosize = sizeof(struct shmid_ds); | |
1777 | break; | |
e5d73d77 | 1778 | #endif |
fe14fcc3 | 1779 | #ifdef HAS_SEM |
79072805 | 1780 | case OP_SEMCTL: |
39398f3f | 1781 | #ifdef Semctl |
c2ab57d4 LW |
1782 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1783 | infosize = sizeof(struct semid_ds); | |
1784 | else if (cmd == GETALL || cmd == SETALL) | |
1785 | { | |
8e591e46 | 1786 | struct semid_ds semds; |
bd89102f | 1787 | union semun semun; |
e6f0bdd6 GS |
1788 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1789 | semun.buff = &semds; | |
1790 | #else | |
84902520 | 1791 | semun.buf = &semds; |
e6f0bdd6 | 1792 | #endif |
c2ab57d4 | 1793 | getinfo = (cmd == GETALL); |
9b89d93d GB |
1794 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1795 | return -1; | |
6e21c824 LW |
1796 | infosize = semds.sem_nsems * sizeof(short); |
1797 | /* "short" is technically wrong but much more portable | |
1798 | than guessing about u_?short(_t)? */ | |
c2ab57d4 | 1799 | } |
39398f3f | 1800 | #else |
cea2e8a9 | 1801 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 1802 | #endif |
c2ab57d4 | 1803 | break; |
e5d73d77 | 1804 | #endif |
fe14fcc3 | 1805 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1806 | default: |
cea2e8a9 | 1807 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
e5d73d77 | 1808 | #endif |
c2ab57d4 LW |
1809 | } |
1810 | ||
1811 | if (infosize) | |
1812 | { | |
a0d0e21e | 1813 | STRLEN len; |
c2ab57d4 LW |
1814 | if (getinfo) |
1815 | { | |
a0d0e21e LW |
1816 | SvPV_force(astr, len); |
1817 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
1818 | } |
1819 | else | |
1820 | { | |
463ee0b2 LW |
1821 | a = SvPV(astr, len); |
1822 | if (len != infosize) | |
cea2e8a9 | 1823 | Perl_croak(aTHX_ "Bad arg length for %s, is %lu, should be %ld", |
4ec43091 JH |
1824 | PL_op_desc[optype], |
1825 | (unsigned long)len, | |
1826 | (long)infosize); | |
c2ab57d4 LW |
1827 | } |
1828 | } | |
1829 | else | |
1830 | { | |
c030ccd9 | 1831 | IV i = SvIV(astr); |
56431972 | 1832 | a = INT2PTR(char *,i); /* ouch */ |
c2ab57d4 | 1833 | } |
748a9306 | 1834 | SETERRNO(0,0); |
c2ab57d4 LW |
1835 | switch (optype) |
1836 | { | |
fe14fcc3 | 1837 | #ifdef HAS_MSG |
79072805 | 1838 | case OP_MSGCTL: |
bee1dbe2 | 1839 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 1840 | break; |
e5d73d77 | 1841 | #endif |
fe14fcc3 | 1842 | #ifdef HAS_SEM |
bd89102f | 1843 | case OP_SEMCTL: { |
39398f3f | 1844 | #ifdef Semctl |
bd89102f AD |
1845 | union semun unsemds; |
1846 | ||
e6f0bdd6 GS |
1847 | #ifdef EXTRA_F_IN_SEMUN_BUF |
1848 | unsemds.buff = (struct semid_ds *)a; | |
1849 | #else | |
bd89102f | 1850 | unsemds.buf = (struct semid_ds *)a; |
e6f0bdd6 | 1851 | #endif |
bd89102f | 1852 | ret = Semctl(id, n, cmd, unsemds); |
39398f3f | 1853 | #else |
cea2e8a9 | 1854 | Perl_croak(aTHX_ "%s not implemented", PL_op_desc[optype]); |
39398f3f | 1855 | #endif |
bd89102f | 1856 | } |
c2ab57d4 | 1857 | break; |
e5d73d77 | 1858 | #endif |
fe14fcc3 | 1859 | #ifdef HAS_SHM |
79072805 | 1860 | case OP_SHMCTL: |
bee1dbe2 | 1861 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 1862 | break; |
e5d73d77 | 1863 | #endif |
c2ab57d4 LW |
1864 | } |
1865 | if (getinfo && ret >= 0) { | |
79072805 LW |
1866 | SvCUR_set(astr, infosize); |
1867 | *SvEND(astr) = '\0'; | |
a0d0e21e | 1868 | SvSETMAGIC(astr); |
c2ab57d4 LW |
1869 | } |
1870 | return ret; | |
1871 | } | |
1872 | ||
79072805 | 1873 | I32 |
864dbfa3 | 1874 | Perl_do_msgsnd(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 1875 | { |
fe14fcc3 | 1876 | #ifdef HAS_MSG |
79072805 | 1877 | SV *mstr; |
c2ab57d4 | 1878 | char *mbuf; |
79072805 | 1879 | I32 id, msize, flags; |
463ee0b2 | 1880 | STRLEN len; |
c2ab57d4 | 1881 | |
463ee0b2 | 1882 | id = SvIVx(*++mark); |
79072805 | 1883 | mstr = *++mark; |
463ee0b2 LW |
1884 | flags = SvIVx(*++mark); |
1885 | mbuf = SvPV(mstr, len); | |
1886 | if ((msize = len - sizeof(long)) < 0) | |
cea2e8a9 | 1887 | Perl_croak(aTHX_ "Arg too short for msgsnd"); |
748a9306 | 1888 | SETERRNO(0,0); |
bee1dbe2 | 1889 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 1890 | #else |
cea2e8a9 | 1891 | Perl_croak(aTHX_ "msgsnd not implemented"); |
e5d73d77 | 1892 | #endif |
c2ab57d4 LW |
1893 | } |
1894 | ||
79072805 | 1895 | I32 |
864dbfa3 | 1896 | Perl_do_msgrcv(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 1897 | { |
fe14fcc3 | 1898 | #ifdef HAS_MSG |
79072805 | 1899 | SV *mstr; |
c2ab57d4 LW |
1900 | char *mbuf; |
1901 | long mtype; | |
79072805 | 1902 | I32 id, msize, flags, ret; |
463ee0b2 | 1903 | STRLEN len; |
79072805 | 1904 | |
463ee0b2 | 1905 | id = SvIVx(*++mark); |
79072805 | 1906 | mstr = *++mark; |
c2e66d9e GS |
1907 | /* suppress warning when reading into undef var --jhi */ |
1908 | if (! SvOK(mstr)) | |
1909 | sv_setpvn(mstr, "", 0); | |
463ee0b2 LW |
1910 | msize = SvIVx(*++mark); |
1911 | mtype = (long)SvIVx(*++mark); | |
1912 | flags = SvIVx(*++mark); | |
a0d0e21e LW |
1913 | SvPV_force(mstr, len); |
1914 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
a1d180c4 | 1915 | |
748a9306 | 1916 | SETERRNO(0,0); |
bee1dbe2 | 1917 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 1918 | if (ret >= 0) { |
79072805 LW |
1919 | SvCUR_set(mstr, sizeof(long)+ret); |
1920 | *SvEND(mstr) = '\0'; | |
41d6edb2 JH |
1921 | #ifndef INCOMPLETE_TAINTS |
1922 | /* who knows who has been playing with this message? */ | |
1923 | SvTAINTED_on(mstr); | |
1924 | #endif | |
c2ab57d4 LW |
1925 | } |
1926 | return ret; | |
e5d73d77 | 1927 | #else |
cea2e8a9 | 1928 | Perl_croak(aTHX_ "msgrcv not implemented"); |
e5d73d77 | 1929 | #endif |
c2ab57d4 LW |
1930 | } |
1931 | ||
79072805 | 1932 | I32 |
864dbfa3 | 1933 | Perl_do_semop(pTHX_ SV **mark, SV **sp) |
c2ab57d4 | 1934 | { |
fe14fcc3 | 1935 | #ifdef HAS_SEM |
79072805 | 1936 | SV *opstr; |
c2ab57d4 | 1937 | char *opbuf; |
463ee0b2 LW |
1938 | I32 id; |
1939 | STRLEN opsize; | |
c2ab57d4 | 1940 | |
463ee0b2 | 1941 | id = SvIVx(*++mark); |
79072805 | 1942 | opstr = *++mark; |
463ee0b2 | 1943 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 LW |
1944 | if (opsize < sizeof(struct sembuf) |
1945 | || (opsize % sizeof(struct sembuf)) != 0) { | |
748a9306 | 1946 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 LW |
1947 | return -1; |
1948 | } | |
748a9306 | 1949 | SETERRNO(0,0); |
6e21c824 | 1950 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 | 1951 | #else |
cea2e8a9 | 1952 | Perl_croak(aTHX_ "semop not implemented"); |
e5d73d77 | 1953 | #endif |
c2ab57d4 LW |
1954 | } |
1955 | ||
79072805 | 1956 | I32 |
864dbfa3 | 1957 | Perl_do_shmio(pTHX_ I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1958 | { |
fe14fcc3 | 1959 | #ifdef HAS_SHM |
79072805 | 1960 | SV *mstr; |
c2ab57d4 | 1961 | char *mbuf, *shm; |
79072805 | 1962 | I32 id, mpos, msize; |
463ee0b2 | 1963 | STRLEN len; |
c2ab57d4 | 1964 | struct shmid_ds shmds; |
c2ab57d4 | 1965 | |
463ee0b2 | 1966 | id = SvIVx(*++mark); |
79072805 | 1967 | mstr = *++mark; |
463ee0b2 LW |
1968 | mpos = SvIVx(*++mark); |
1969 | msize = SvIVx(*++mark); | |
748a9306 | 1970 | SETERRNO(0,0); |
c2ab57d4 LW |
1971 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1972 | return -1; | |
1973 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
748a9306 | 1974 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
1975 | return -1; |
1976 | } | |
8ac85365 | 1977 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
1978 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1979 | return -1; | |
79072805 | 1980 | if (optype == OP_SHMREAD) { |
9f538c04 GS |
1981 | /* suppress warning when reading into undef var (tchrist 3/Mar/00) */ |
1982 | if (! SvOK(mstr)) | |
1983 | sv_setpvn(mstr, "", 0); | |
a0d0e21e LW |
1984 | SvPV_force(mstr, len); |
1985 | mbuf = SvGROW(mstr, msize+1); | |
1986 | ||
bee1dbe2 | 1987 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
1988 | SvCUR_set(mstr, msize); |
1989 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 1990 | SvSETMAGIC(mstr); |
d929ce6f JH |
1991 | #ifndef INCOMPLETE_TAINTS |
1992 | /* who knows who has been playing with this shared memory? */ | |
1993 | SvTAINTED_on(mstr); | |
1994 | #endif | |
c2ab57d4 LW |
1995 | } |
1996 | else { | |
79072805 | 1997 | I32 n; |
c2ab57d4 | 1998 | |
a0d0e21e | 1999 | mbuf = SvPV(mstr, len); |
463ee0b2 | 2000 | if ((n = len) > msize) |
c2ab57d4 | 2001 | n = msize; |
bee1dbe2 | 2002 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 2003 | if (n < msize) |
bee1dbe2 | 2004 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
2005 | } |
2006 | return shmdt(shm); | |
e5d73d77 | 2007 | #else |
cea2e8a9 | 2008 | Perl_croak(aTHX_ "shm I/O not implemented"); |
e5d73d77 | 2009 | #endif |
c2ab57d4 LW |
2010 | } |
2011 | ||
fe14fcc3 | 2012 | #endif /* SYSV IPC */ |
4e35701f | 2013 | |
0d44d22b NC |
2014 | /* |
2015 | =for apidoc start_glob | |
2016 | ||
2017 | Function called by C<do_readline> to spawn a glob (or do the glob inside | |
2018 | perl on VMS). This code used to be inline, but now perl uses C<File::Glob> | |
2019 | this glob starter is only used by miniperl during the build proccess. | |
2020 | Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up. | |
fab3f3a7 | 2021 | |
0d44d22b NC |
2022 | =cut |
2023 | */ | |
2024 | ||
2025 | PerlIO * | |
2026 | Perl_start_glob (pTHX_ SV *tmpglob, IO *io) | |
2027 | { | |
2028 | SV *tmpcmd = NEWSV(55, 0); | |
2029 | PerlIO *fp; | |
2030 | ENTER; | |
2031 | SAVEFREESV(tmpcmd); | |
2032 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
2033 | /* since spawning off a process is a real performance hit */ | |
2034 | { | |
2035 | #include <descrip.h> | |
2036 | #include <lib$routines.h> | |
2037 | #include <nam.h> | |
2038 | #include <rmsdef.h> | |
2039 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
2040 | char vmsspec[NAM$C_MAXRSS+1]; | |
2041 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
2042 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
2043 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
2044 | PerlIO *tmpfp; | |
2045 | STRLEN i; | |
2046 | struct dsc$descriptor_s wilddsc | |
2047 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
2048 | struct dsc$descriptor_vs rsdsc | |
2049 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
2050 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
2051 | ||
2052 | /* We could find out if there's an explicit dev/dir or version | |
2053 | by peeking into lib$find_file's internal context at | |
2054 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
2055 | but that's unsupported, so I don't want to do it now and | |
2056 | have it bite someone in the future. */ | |
2057 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); | |
2058 | cp = SvPV(tmpglob,i); | |
2059 | for (; i; i--) { | |
2060 | if (cp[i] == ';') hasver = 1; | |
2061 | if (cp[i] == '.') { | |
2062 | if (sts) hasver = 1; | |
2063 | else sts = 1; | |
2064 | } | |
2065 | if (cp[i] == '/') { | |
2066 | hasdir = isunix = 1; | |
2067 | break; | |
2068 | } | |
2069 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { | |
2070 | hasdir = 1; | |
2071 | break; | |
2072 | } | |
2073 | } | |
2074 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { | |
2075 | Stat_t st; | |
2076 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) | |
2077 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); | |
2078 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
2079 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); | |
2080 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
2081 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
2082 | end = rstr + (unsigned long int) *rslt; | |
2083 | if (!hasver) while (*end != ';') end--; | |
2084 | *(end++) = '\n'; *end = '\0'; | |
2085 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
2086 | if (hasdir) { | |
2087 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); | |
2088 | begin = rstr; | |
2089 | } | |
2090 | else { | |
2091 | begin = end; | |
2092 | while (*(--begin) != ']' && *begin != '>') ; | |
2093 | ++begin; | |
2094 | } | |
2095 | ok = (PerlIO_puts(tmpfp,begin) != EOF); | |
2096 | } | |
2097 | if (cxt) (void)lib$find_file_end(&cxt); | |
2098 | if (ok && sts != RMS$_NMF && | |
2099 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
2100 | if (!ok) { | |
2101 | if (!(sts & 1)) { | |
2102 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
2103 | } | |
2104 | PerlIO_close(tmpfp); | |
2105 | fp = NULL; | |
2106 | } | |
2107 | else { | |
2108 | PerlIO_rewind(tmpfp); | |
2109 | IoTYPE(io) = IoTYPE_RDONLY; | |
2110 | IoIFP(io) = fp = tmpfp; | |
2111 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ | |
2112 | } | |
2113 | } | |
2114 | } | |
2115 | #else /* !VMS */ | |
2116 | #ifdef MACOS_TRADITIONAL | |
2117 | sv_setpv(tmpcmd, "glob "); | |
2118 | sv_catsv(tmpcmd, tmpglob); | |
2119 | sv_catpv(tmpcmd, " |"); | |
2120 | #else | |
2121 | #ifdef DOSISH | |
2122 | #ifdef OS2 | |
2123 | sv_setpv(tmpcmd, "for a in "); | |
2124 | sv_catsv(tmpcmd, tmpglob); | |
2125 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
2126 | #else | |
2127 | #ifdef DJGPP | |
2128 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
2129 | sv_catsv(tmpcmd, tmpglob); | |
2130 | #else | |
2131 | sv_setpv(tmpcmd, "perlglob "); | |
2132 | sv_catsv(tmpcmd, tmpglob); | |
2133 | sv_catpv(tmpcmd, " |"); | |
2134 | #endif /* !DJGPP */ | |
2135 | #endif /* !OS2 */ | |
2136 | #else /* !DOSISH */ | |
2137 | #if defined(CSH) | |
2138 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); | |
2139 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
2140 | sv_catsv(tmpcmd, tmpglob); | |
2141 | sv_catpv(tmpcmd, "' 2>/dev/null |"); | |
2142 | #else | |
2143 | sv_setpv(tmpcmd, "echo "); | |
2144 | sv_catsv(tmpcmd, tmpglob); | |
2145 | #if 'z' - 'a' == 25 | |
2146 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
2147 | #else | |
2148 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
2149 | #endif | |
2150 | #endif /* !CSH */ | |
2151 | #endif /* !DOSISH */ | |
2152 | #endif /* MACOS_TRADITIONAL */ | |
2153 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), | |
2154 | FALSE, O_RDONLY, 0, Nullfp); | |
2155 | fp = IoIFP(io); | |
2156 | #endif /* !VMS */ | |
2157 | LEAVE; | |
2158 | return fp; | |
2159 | } |