Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, 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" | |
18 | #include "perl.h" | |
19 | ||
fe14fcc3 | 20 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 21 | #include <sys/ipc.h> |
fe14fcc3 | 22 | #ifdef HAS_MSG |
c2ab57d4 | 23 | #include <sys/msg.h> |
e5d73d77 | 24 | #endif |
fe14fcc3 | 25 | #ifdef HAS_SEM |
c2ab57d4 | 26 | #include <sys/sem.h> |
e5d73d77 | 27 | #endif |
fe14fcc3 | 28 | #ifdef HAS_SHM |
c2ab57d4 | 29 | #include <sys/shm.h> |
a0d0e21e LW |
30 | # ifndef HAS_SHMAT_PROTOTYPE |
31 | extern Shmat_t shmat _((int, char *, int)); | |
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 | |
ff8e2863 LW |
44 | #ifdef I_FCNTL |
45 | #include <fcntl.h> | |
46 | #endif | |
fe14fcc3 LW |
47 | #ifdef I_SYS_FILE |
48 | #include <sys/file.h> | |
49 | #endif | |
85aff577 CS |
50 | #ifdef O_EXCL |
51 | # define OPEN_EXCL O_EXCL | |
52 | #else | |
53 | # define OPEN_EXCL 0 | |
54 | #endif | |
a687059c | 55 | |
76121258 | 56 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
57 | #include <signal.h> | |
58 | #endif | |
59 | ||
60 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ | |
61 | #ifdef I_UNISTD | |
62 | # include <unistd.h> | |
63 | #endif | |
64 | ||
232e078e AD |
65 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
66 | # include <sys/socket.h> | |
67 | # include <netdb.h> | |
68 | # ifndef ENOTSOCK | |
69 | # ifdef I_NET_ERRNO | |
70 | # include <net/errno.h> | |
71 | # endif | |
72 | # endif | |
73 | #endif | |
74 | ||
d574b85e CS |
75 | /* Put this after #includes because <unistd.h> defines _XOPEN_*. */ |
76 | #ifndef Sock_size_t | |
137443ea | 77 | # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__) |
d574b85e CS |
78 | # define Sock_size_t Size_t |
79 | # else | |
80 | # define Sock_size_t int | |
81 | # endif | |
82 | #endif | |
83 | ||
a687059c | 84 | bool |
6acef3b7 | 85 | do_open(GV *gv, register char *name, I32 len, int as_raw, int rawmode, int rawperm, PerlIO *supplied_fp) |
a687059c | 86 | { |
a0d0e21e | 87 | register IO *io = GvIOn(gv); |
760ac839 LW |
88 | PerlIO *saveifp = Nullfp; |
89 | PerlIO *saveofp = Nullfp; | |
6e21c824 | 90 | char savetype = ' '; |
c07a80fd | 91 | int writing = 0; |
760ac839 | 92 | PerlIO *fp; |
c07a80fd | 93 | int fd; |
94 | int result; | |
3500f679 | 95 | bool was_fdopen = FALSE; |
a687059c | 96 | |
a687059c | 97 | forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 98 | |
a0d0e21e | 99 | if (IoIFP(io)) { |
760ac839 | 100 | fd = PerlIO_fileno(IoIFP(io)); |
8990e307 | 101 | if (IoTYPE(io) == '-') |
c2ab57d4 | 102 | result = 0; |
6e21c824 | 103 | else if (fd <= maxsysfd) { |
8990e307 LW |
104 | saveifp = IoIFP(io); |
105 | saveofp = IoOFP(io); | |
106 | savetype = IoTYPE(io); | |
6e21c824 LW |
107 | result = 0; |
108 | } | |
8990e307 | 109 | else if (IoTYPE(io) == '|') |
3028581b | 110 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 LW |
111 | else if (IoIFP(io) != IoOFP(io)) { |
112 | if (IoOFP(io)) { | |
760ac839 LW |
113 | result = PerlIO_close(IoOFP(io)); |
114 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
115 | } |
116 | else | |
760ac839 | 117 | result = PerlIO_close(IoIFP(io)); |
a687059c | 118 | } |
a687059c | 119 | else |
760ac839 | 120 | result = PerlIO_close(IoIFP(io)); |
6e21c824 | 121 | if (result == EOF && fd > maxsysfd) |
760ac839 | 122 | PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n", |
79072805 | 123 | GvENAME(gv)); |
8990e307 | 124 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c | 125 | } |
c07a80fd | 126 | |
127 | if (as_raw) { | |
128 | result = rawmode & 3; | |
129 | IoTYPE(io) = "<>++"[result]; | |
130 | writing = (result > 0); | |
3028581b | 131 | fd = PerlLIO_open3(name, rawmode, rawperm); |
c07a80fd | 132 | if (fd == -1) |
133 | fp = NULL; | |
134 | else { | |
360e5741 CS |
135 | char *fpmode; |
136 | if (result == 0) | |
137 | fpmode = "r"; | |
138 | #ifdef O_APPEND | |
139 | else if (rawmode & O_APPEND) | |
140 | fpmode = (result == 1) ? "a" : "a+"; | |
141 | #endif | |
142 | else | |
143 | fpmode = (result == 1) ? "w" : "r+"; | |
144 | fp = PerlIO_fdopen(fd, fpmode); | |
c07a80fd | 145 | if (!fp) |
3028581b | 146 | PerlLIO_close(fd); |
c07a80fd | 147 | } |
a687059c | 148 | } |
c07a80fd | 149 | else { |
150 | char *myname; | |
151 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ | |
152 | int dodup; | |
153 | ||
154 | myname = savepvn(name, len); | |
155 | SAVEFREEPV(myname); | |
156 | name = myname; | |
157 | while (len && isSPACE(name[len-1])) | |
158 | name[--len] = '\0'; | |
159 | ||
160 | mode[0] = mode[1] = mode[2] = '\0'; | |
161 | IoTYPE(io) = *name; | |
162 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ | |
163 | mode[1] = *name++; | |
164 | --len; | |
165 | writing = 1; | |
a687059c | 166 | } |
c07a80fd | 167 | |
168 | if (*name == '|') { | |
169 | /*SUPPRESS 530*/ | |
170 | for (name++; isSPACE(*name); name++) ; | |
171 | if (strNE(name,"-")) | |
172 | TAINT_ENV(); | |
173 | TAINT_PROPER("piped open"); | |
7b8d334a GS |
174 | if (name[strlen(name)-1] == '|') { |
175 | name[strlen(name)-1] = '\0' ; | |
176 | if (dowarn) | |
177 | warn("Can't do bidirectional pipe"); | |
178 | } | |
3028581b | 179 | fp = PerlProc_popen(name,"w"); |
c07a80fd | 180 | writing = 1; |
181 | } | |
182 | else if (*name == '>') { | |
183 | TAINT_PROPER("open"); | |
bf38876a | 184 | name++; |
c07a80fd | 185 | if (*name == '>') { |
186 | mode[0] = IoTYPE(io) = 'a'; | |
bf38876a | 187 | name++; |
a0d0e21e | 188 | } |
c07a80fd | 189 | else |
190 | mode[0] = 'w'; | |
191 | writing = 1; | |
192 | ||
193 | if (*name == '&') { | |
194 | duplicity: | |
195 | dodup = 1; | |
196 | name++; | |
197 | if (*name == '=') { | |
198 | dodup = 0; | |
a0d0e21e | 199 | name++; |
c07a80fd | 200 | } |
201 | if (!*name && supplied_fp) | |
202 | fp = supplied_fp; | |
a0d0e21e | 203 | else { |
c07a80fd | 204 | /*SUPPRESS 530*/ |
205 | for (; isSPACE(*name); name++) ; | |
206 | if (isDIGIT(*name)) | |
207 | fd = atoi(name); | |
208 | else { | |
209 | IO* thatio; | |
210 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); | |
211 | thatio = GvIO(gv); | |
212 | if (!thatio) { | |
6e21c824 | 213 | #ifdef EINVAL |
c07a80fd | 214 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 | 215 | #endif |
c07a80fd | 216 | goto say_false; |
217 | } | |
218 | if (IoIFP(thatio)) { | |
760ac839 | 219 | fd = PerlIO_fileno(IoIFP(thatio)); |
c07a80fd | 220 | if (IoTYPE(thatio) == 's') |
221 | IoTYPE(io) = 's'; | |
222 | } | |
223 | else | |
224 | fd = -1; | |
a0d0e21e | 225 | } |
fec02dd3 | 226 | if (dodup) |
3028581b | 227 | fd = PerlLIO_dup(fd); |
3500f679 RS |
228 | else |
229 | was_fdopen = TRUE; | |
760ac839 | 230 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd | 231 | if (dodup) |
3028581b | 232 | PerlLIO_close(fd); |
517844ec | 233 | } |
c07a80fd | 234 | } |
bf38876a | 235 | } |
c07a80fd | 236 | else { |
237 | /*SUPPRESS 530*/ | |
238 | for (; isSPACE(*name); name++) ; | |
239 | if (strEQ(name,"-")) { | |
760ac839 | 240 | fp = PerlIO_stdout(); |
c07a80fd | 241 | IoTYPE(io) = '-'; |
242 | } | |
243 | else { | |
760ac839 | 244 | fp = PerlIO_open(name,mode); |
c07a80fd | 245 | } |
bf38876a LW |
246 | } |
247 | } | |
c07a80fd | 248 | else if (*name == '<') { |
249 | /*SUPPRESS 530*/ | |
250 | for (name++; isSPACE(*name); name++) ; | |
bf38876a | 251 | mode[0] = 'r'; |
bf38876a LW |
252 | if (*name == '&') |
253 | goto duplicity; | |
a687059c | 254 | if (strEQ(name,"-")) { |
760ac839 | 255 | fp = PerlIO_stdin(); |
8990e307 | 256 | IoTYPE(io) = '-'; |
a687059c | 257 | } |
bf38876a | 258 | else |
760ac839 | 259 | fp = PerlIO_open(name,mode); |
a687059c | 260 | } |
00db4c45 | 261 | else if (len > 1 && name[len-1] == '|') { |
a687059c | 262 | name[--len] = '\0'; |
99b89507 | 263 | while (len && isSPACE(name[len-1])) |
a687059c | 264 | name[--len] = '\0'; |
99b89507 LW |
265 | /*SUPPRESS 530*/ |
266 | for (; isSPACE(*name); name++) ; | |
79072805 LW |
267 | if (strNE(name,"-")) |
268 | TAINT_ENV(); | |
269 | TAINT_PROPER("piped open"); | |
3028581b | 270 | fp = PerlProc_popen(name,"r"); |
8990e307 | 271 | IoTYPE(io) = '|'; |
a687059c LW |
272 | } |
273 | else { | |
8990e307 | 274 | IoTYPE(io) = '<'; |
99b89507 LW |
275 | /*SUPPRESS 530*/ |
276 | for (; isSPACE(*name); name++) ; | |
a687059c | 277 | if (strEQ(name,"-")) { |
760ac839 | 278 | fp = PerlIO_stdin(); |
8990e307 | 279 | IoTYPE(io) = '-'; |
a687059c LW |
280 | } |
281 | else | |
760ac839 | 282 | fp = PerlIO_open(name,"r"); |
a687059c LW |
283 | } |
284 | } | |
bee1dbe2 | 285 | if (!fp) { |
8990e307 | 286 | if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n')) |
bee1dbe2 | 287 | warn(warn_nl, "open"); |
6e21c824 | 288 | goto say_false; |
bee1dbe2 | 289 | } |
8990e307 LW |
290 | if (IoTYPE(io) && |
291 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { | |
96827780 | 292 | dTHR; |
3028581b | 293 | if (PerlLIO_fstat(PerlIO_fileno(fp),&statbuf) < 0) { |
760ac839 | 294 | (void)PerlIO_close(fp); |
6e21c824 | 295 | goto say_false; |
a687059c | 296 | } |
1462b684 | 297 | if (S_ISSOCK(statbuf.st_mode)) |
8990e307 | 298 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 LW |
299 | #ifdef HAS_SOCKET |
300 | else if ( | |
c623bd54 | 301 | #ifdef S_IFMT |
99b89507 LW |
302 | !(statbuf.st_mode & S_IFMT) |
303 | #else | |
304 | !statbuf.st_mode | |
305 | #endif | |
306 | ) { | |
96827780 MB |
307 | char tmpbuf[256]; |
308 | Sock_size_t buflen = sizeof tmpbuf; | |
3028581b | 309 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e CS |
310 | &buflen) >= 0 |
311 | || errno != ENOTSOCK) | |
8990e307 | 312 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 LW |
313 | /* but some return 0 for streams too, sigh */ |
314 | } | |
bf38876a | 315 | #endif |
a687059c | 316 | } |
6e21c824 | 317 | if (saveifp) { /* must use old fp? */ |
760ac839 | 318 | fd = PerlIO_fileno(saveifp); |
6e21c824 | 319 | if (saveofp) { |
760ac839 | 320 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 321 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 322 | PerlIO_close(saveofp); |
99b89507 LW |
323 | if (fd > 2) |
324 | Safefree(saveofp); | |
6e21c824 LW |
325 | } |
326 | } | |
760ac839 | 327 | if (fd != PerlIO_fileno(fp)) { |
bee1dbe2 | 328 | int pid; |
79072805 | 329 | SV *sv; |
bee1dbe2 | 330 | |
3028581b | 331 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
760ac839 | 332 | sv = *av_fetch(fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e | 333 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 LW |
334 | pid = SvIVX(sv); |
335 | SvIVX(sv) = 0; | |
79072805 | 336 | sv = *av_fetch(fdpid,fd,TRUE); |
a0d0e21e | 337 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 | 338 | SvIVX(sv) = pid; |
3500f679 RS |
339 | if (!was_fdopen) |
340 | PerlIO_close(fp); | |
bee1dbe2 | 341 | |
6e21c824 LW |
342 | } |
343 | fp = saveifp; | |
760ac839 | 344 | PerlIO_clearerr(fp); |
6e21c824 | 345 | } |
a0d0e21e | 346 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 | 347 | fd = PerlIO_fileno(fp); |
a0d0e21e | 348 | fcntl(fd,F_SETFD,fd > maxsysfd); |
1462b684 | 349 | #endif |
8990e307 | 350 | IoIFP(io) = fp; |
bf38876a | 351 | if (writing) { |
96827780 | 352 | dTHR; |
8990e307 LW |
353 | if (IoTYPE(io) == 's' |
354 | || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { | |
760ac839 LW |
355 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
356 | PerlIO_close(fp); | |
8990e307 | 357 | IoIFP(io) = Nullfp; |
6e21c824 | 358 | goto say_false; |
fe14fcc3 | 359 | } |
1462b684 LW |
360 | } |
361 | else | |
8990e307 | 362 | IoOFP(io) = fp; |
bf38876a | 363 | } |
a687059c | 364 | return TRUE; |
6e21c824 LW |
365 | |
366 | say_false: | |
8990e307 LW |
367 | IoIFP(io) = saveifp; |
368 | IoOFP(io) = saveofp; | |
369 | IoTYPE(io) = savetype; | |
6e21c824 | 370 | return FALSE; |
a687059c LW |
371 | } |
372 | ||
760ac839 | 373 | PerlIO * |
8ac85365 | 374 | nextargv(register GV *gv) |
a687059c | 375 | { |
79072805 | 376 | register SV *sv; |
99b89507 | 377 | #ifndef FLEXFILENAMES |
c623bd54 LW |
378 | int filedev; |
379 | int fileino; | |
99b89507 | 380 | #endif |
c623bd54 LW |
381 | int fileuid; |
382 | int filegid; | |
fe14fcc3 | 383 | |
79072805 | 384 | if (!argvoutgv) |
85e6fe83 | 385 | argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
fe14fcc3 | 386 | if (filemode & (S_ISUID|S_ISGID)) { |
760ac839 | 387 | PerlIO_flush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 LW |
388 | #ifdef HAS_FCHMOD |
389 | (void)fchmod(lastfd,filemode); | |
390 | #else | |
3028581b | 391 | (void)PerlLIO_chmod(oldname,filemode); |
fe14fcc3 LW |
392 | #endif |
393 | } | |
394 | filemode = 0; | |
79072805 | 395 | while (av_len(GvAV(gv)) >= 0) { |
11343788 | 396 | dTHR; |
85aff577 | 397 | STRLEN oldlen; |
79072805 | 398 | sv = av_shift(GvAV(gv)); |
8990e307 | 399 | SAVEFREESV(sv); |
79072805 LW |
400 | sv_setsv(GvSV(gv),sv); |
401 | SvSETMAGIC(GvSV(gv)); | |
85aff577 CS |
402 | oldname = SvPVx(GvSV(gv), oldlen); |
403 | if (do_open(gv,oldname,oldlen,inplace!=0,0,0,Nullfp)) { | |
a687059c | 404 | if (inplace) { |
79072805 | 405 | TAINT_PROPER("inplace open"); |
85aff577 | 406 | if (oldlen == 1 && *oldname == '-') { |
4633a7c4 | 407 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 408 | return IoIFP(GvIOp(gv)); |
c623bd54 | 409 | } |
99b89507 | 410 | #ifndef FLEXFILENAMES |
c623bd54 LW |
411 | filedev = statbuf.st_dev; |
412 | fileino = statbuf.st_ino; | |
99b89507 | 413 | #endif |
a687059c LW |
414 | filemode = statbuf.st_mode; |
415 | fileuid = statbuf.st_uid; | |
416 | filegid = statbuf.st_gid; | |
c623bd54 LW |
417 | if (!S_ISREG(filemode)) { |
418 | warn("Can't do inplace edit: %s is not a regular file", | |
419 | oldname ); | |
79072805 | 420 | do_close(gv,FALSE); |
c623bd54 LW |
421 | continue; |
422 | } | |
a687059c | 423 | if (*inplace) { |
2d259d92 CK |
424 | char *star = strchr(inplace, '*'); |
425 | if (star) { | |
426 | char *begin = inplace; | |
427 | sv_setpvn(sv, "", 0); | |
428 | do { | |
429 | sv_catpvn(sv, begin, star - begin); | |
430 | sv_catpvn(sv, oldname, oldlen); | |
431 | begin = ++star; | |
432 | } while ((star = strchr(begin, '*'))); | |
3d66d7bb GS |
433 | if (*begin) |
434 | sv_catpv(sv,begin); | |
2d259d92 CK |
435 | } |
436 | else { | |
437 | sv_catpv(sv,inplace); | |
438 | } | |
c623bd54 | 439 | #ifndef FLEXFILENAMES |
3028581b | 440 | if (PerlLIO_stat(SvPVX(sv),&statbuf) >= 0 |
c623bd54 | 441 | && statbuf.st_dev == filedev |
39e571d4 LM |
442 | && statbuf.st_ino == fileino |
443 | #ifdef DJGPP | |
444 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 | |
445 | #endif | |
446 | ) { | |
447 | warn("Can't do inplace edit: %s would not be uniq", | |
463ee0b2 | 448 | SvPVX(sv) ); |
79072805 | 449 | do_close(gv,FALSE); |
c623bd54 LW |
450 | continue; |
451 | } | |
452 | #endif | |
fe14fcc3 | 453 | #ifdef HAS_RENAME |
bee1dbe2 | 454 | #ifndef DOSISH |
3028581b | 455 | if (PerlLIO_rename(oldname,SvPVX(sv)) < 0) { |
c623bd54 | 456 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 457 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 458 | do_close(gv,FALSE); |
c623bd54 LW |
459 | continue; |
460 | } | |
a687059c | 461 | #else |
79072805 | 462 | do_close(gv,FALSE); |
3028581b GS |
463 | (void)PerlLIO_unlink(SvPVX(sv)); |
464 | (void)PerlLIO_rename(oldname,SvPVX(sv)); | |
85aff577 | 465 | do_open(gv,SvPVX(sv),SvCUR(sv),inplace!=0,0,0,Nullfp); |
55497cff | 466 | #endif /* DOSISH */ |
ff8e2863 | 467 | #else |
463ee0b2 LW |
468 | (void)UNLINK(SvPVX(sv)); |
469 | if (link(oldname,SvPVX(sv)) < 0) { | |
c623bd54 | 470 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 471 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 472 | do_close(gv,FALSE); |
c623bd54 LW |
473 | continue; |
474 | } | |
a687059c LW |
475 | (void)UNLINK(oldname); |
476 | #endif | |
477 | } | |
478 | else { | |
a8c18271 | 479 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 480 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
fe14fcc3 | 481 | if (UNLINK(oldname) < 0) { |
85aff577 CS |
482 | warn("Can't remove %s: %s, skipping file", |
483 | oldname, Strerror(errno) ); | |
79072805 | 484 | do_close(gv,FALSE); |
fe14fcc3 LW |
485 | continue; |
486 | } | |
edc7bc49 | 487 | # endif |
ff8e2863 | 488 | #else |
463ee0b2 | 489 | croak("Can't do inplace edit without backup"); |
ff8e2863 | 490 | #endif |
a687059c LW |
491 | } |
492 | ||
85aff577 CS |
493 | sv_setpvn(sv,">",!inplace); |
494 | sv_catpvn(sv,oldname,oldlen); | |
748a9306 | 495 | SETERRNO(0,0); /* in case sprintf set errno */ |
85aff577 CS |
496 | if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),inplace!=0, |
497 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) { | |
c623bd54 | 498 | warn("Can't do inplace edit on %s: %s", |
2304df62 | 499 | oldname, Strerror(errno) ); |
79072805 | 500 | do_close(gv,FALSE); |
fe14fcc3 LW |
501 | continue; |
502 | } | |
4633a7c4 | 503 | setdefout(argvoutgv); |
760ac839 | 504 | lastfd = PerlIO_fileno(IoIFP(GvIOp(argvoutgv))); |
3028581b | 505 | (void)PerlLIO_fstat(lastfd,&statbuf); |
fe14fcc3 LW |
506 | #ifdef HAS_FCHMOD |
507 | (void)fchmod(lastfd,filemode); | |
a687059c | 508 | #else |
3e3baf6d TB |
509 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
510 | /* Borland runtime creates a readonly file! */ | |
3028581b | 511 | (void)PerlLIO_chmod(oldname,filemode); |
3e3baf6d | 512 | # endif |
a687059c | 513 | #endif |
fe14fcc3 LW |
514 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
515 | #ifdef HAS_FCHOWN | |
516 | (void)fchown(lastfd,fileuid,filegid); | |
a687059c | 517 | #else |
fe14fcc3 | 518 | #ifdef HAS_CHOWN |
01f988be | 519 | (void)PerlLIO_chown(oldname,fileuid,filegid); |
a687059c | 520 | #endif |
b1248f16 | 521 | #endif |
fe14fcc3 | 522 | } |
a687059c | 523 | } |
a0d0e21e | 524 | return IoIFP(GvIOp(gv)); |
a687059c LW |
525 | } |
526 | else | |
22fae026 TM |
527 | PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n", |
528 | SvPV(sv, na), Strerror(errno)); | |
a687059c LW |
529 | } |
530 | if (inplace) { | |
79072805 | 531 | (void)do_close(argvoutgv,FALSE); |
4633a7c4 | 532 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
533 | } |
534 | return Nullfp; | |
535 | } | |
536 | ||
fe14fcc3 | 537 | #ifdef HAS_PIPE |
afd9f252 | 538 | void |
8ac85365 | 539 | do_pipe(SV *sv, GV *rgv, GV *wgv) |
afd9f252 | 540 | { |
79072805 LW |
541 | register IO *rstio; |
542 | register IO *wstio; | |
afd9f252 LW |
543 | int fd[2]; |
544 | ||
79072805 | 545 | if (!rgv) |
afd9f252 | 546 | goto badexit; |
79072805 | 547 | if (!wgv) |
afd9f252 LW |
548 | goto badexit; |
549 | ||
a0d0e21e LW |
550 | rstio = GvIOn(rgv); |
551 | wstio = GvIOn(wgv); | |
afd9f252 | 552 | |
a0d0e21e | 553 | if (IoIFP(rstio)) |
79072805 | 554 | do_close(rgv,FALSE); |
a0d0e21e | 555 | if (IoIFP(wstio)) |
79072805 | 556 | do_close(wgv,FALSE); |
afd9f252 | 557 | |
3028581b | 558 | if (PerlProc_pipe(fd) < 0) |
afd9f252 | 559 | goto badexit; |
760ac839 LW |
560 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
561 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); | |
8990e307 LW |
562 | IoIFP(wstio) = IoOFP(wstio); |
563 | IoTYPE(rstio) = '<'; | |
564 | IoTYPE(wstio) = '>'; | |
565 | if (!IoIFP(rstio) || !IoOFP(wstio)) { | |
760ac839 | 566 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b | 567 | else PerlLIO_close(fd[0]); |
760ac839 | 568 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b | 569 | else PerlLIO_close(fd[1]); |
fe14fcc3 LW |
570 | goto badexit; |
571 | } | |
afd9f252 | 572 | |
79072805 | 573 | sv_setsv(sv,&sv_yes); |
afd9f252 LW |
574 | return; |
575 | ||
576 | badexit: | |
79072805 | 577 | sv_setsv(sv,&sv_undef); |
afd9f252 LW |
578 | return; |
579 | } | |
b1248f16 | 580 | #endif |
afd9f252 | 581 | |
517844ec | 582 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 583 | bool |
517844ec | 584 | do_close(GV *gv, bool not_implicit) |
a687059c | 585 | { |
1193dd27 IZ |
586 | bool retval; |
587 | IO *io; | |
a687059c | 588 | |
79072805 LW |
589 | if (!gv) |
590 | gv = argvgv; | |
a0d0e21e | 591 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
1d2dff63 GS |
592 | if (not_implicit) |
593 | SETERRNO(EBADF,SS$_IVCHAN); | |
c2ab57d4 | 594 | return FALSE; |
99b89507 | 595 | } |
79072805 LW |
596 | io = GvIO(gv); |
597 | if (!io) { /* never opened */ | |
1d2dff63 GS |
598 | if (not_implicit) { |
599 | if (dowarn) | |
600 | warn("Close on unopened file <%s>",GvENAME(gv)); | |
601 | SETERRNO(EBADF,SS$_IVCHAN); | |
602 | } | |
a687059c LW |
603 | return FALSE; |
604 | } | |
1193dd27 | 605 | retval = io_close(io); |
517844ec | 606 | if (not_implicit) { |
1193dd27 IZ |
607 | IoLINES(io) = 0; |
608 | IoPAGE(io) = 0; | |
609 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
610 | } | |
611 | IoTYPE(io) = ' '; | |
612 | return retval; | |
613 | } | |
614 | ||
615 | bool | |
8ac85365 | 616 | io_close(IO *io) |
1193dd27 IZ |
617 | { |
618 | bool retval = FALSE; | |
619 | int status; | |
620 | ||
8990e307 LW |
621 | if (IoIFP(io)) { |
622 | if (IoTYPE(io) == '|') { | |
3028581b | 623 | status = PerlProc_pclose(IoIFP(io)); |
f86702cc | 624 | STATUS_NATIVE_SET(status); |
1e422769 | 625 | retval = (STATUS_POSIX == 0); |
a687059c | 626 | } |
8990e307 | 627 | else if (IoTYPE(io) == '-') |
a687059c LW |
628 | retval = TRUE; |
629 | else { | |
8990e307 | 630 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 LW |
631 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
632 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
633 | } |
634 | else | |
760ac839 | 635 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c | 636 | } |
8990e307 | 637 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 | 638 | } |
20408e3c GS |
639 | else { |
640 | SETERRNO(EBADF,SS$_IVCHAN); | |
641 | } | |
1193dd27 | 642 | |
a687059c LW |
643 | return retval; |
644 | } | |
645 | ||
646 | bool | |
8ac85365 | 647 | do_eof(GV *gv) |
a687059c | 648 | { |
11343788 | 649 | dTHR; |
79072805 | 650 | register IO *io; |
a687059c LW |
651 | int ch; |
652 | ||
79072805 | 653 | io = GvIO(gv); |
a687059c | 654 | |
79072805 | 655 | if (!io) |
a687059c LW |
656 | return TRUE; |
657 | ||
8990e307 | 658 | while (IoIFP(io)) { |
a687059c | 659 | |
760ac839 LW |
660 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
661 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ | |
662 | return FALSE; /* this is the most usual case */ | |
663 | } | |
a687059c | 664 | |
760ac839 | 665 | ch = PerlIO_getc(IoIFP(io)); |
a687059c | 666 | if (ch != EOF) { |
760ac839 | 667 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c LW |
668 | return FALSE; |
669 | } | |
760ac839 LW |
670 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
671 | if (PerlIO_get_cnt(IoIFP(io)) < -1) | |
672 | PerlIO_set_cnt(IoIFP(io),-1); | |
673 | } | |
8990e307 | 674 | if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
79072805 | 675 | if (!nextargv(argvgv)) /* get another fp handy */ |
a687059c LW |
676 | return TRUE; |
677 | } | |
678 | else | |
679 | return TRUE; /* normal fp, definitely end of file */ | |
680 | } | |
681 | return TRUE; | |
682 | } | |
683 | ||
684 | long | |
8ac85365 | 685 | do_tell(GV *gv) |
a687059c | 686 | { |
79072805 | 687 | register IO *io; |
96e4d5b1 | 688 | register PerlIO *fp; |
a687059c | 689 | |
96e4d5b1 | 690 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 691 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 | 692 | if (PerlIO_eof(fp)) |
693 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 694 | #endif |
8903cb82 | 695 | return PerlIO_tell(fp); |
96e4d5b1 | 696 | } |
a687059c | 697 | if (dowarn) |
8903cb82 | 698 | warn("tell() on unopened file"); |
748a9306 | 699 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
700 | return -1L; |
701 | } | |
702 | ||
703 | bool | |
8ac85365 | 704 | do_seek(GV *gv, long int pos, int whence) |
a687059c | 705 | { |
79072805 | 706 | register IO *io; |
137443ea | 707 | register PerlIO *fp; |
a687059c | 708 | |
137443ea | 709 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 710 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea | 711 | if (PerlIO_eof(fp)) |
712 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 713 | #endif |
8903cb82 | 714 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 715 | } |
a687059c | 716 | if (dowarn) |
8903cb82 | 717 | warn("seek() on unopened file"); |
748a9306 | 718 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
719 | return FALSE; |
720 | } | |
721 | ||
8903cb82 | 722 | long |
8ac85365 | 723 | do_sysseek(GV *gv, long int pos, int whence) |
8903cb82 | 724 | { |
725 | register IO *io; | |
726 | register PerlIO *fp; | |
727 | ||
728 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) | |
3028581b | 729 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
8903cb82 | 730 | if (dowarn) |
731 | warn("sysseek() on unopened file"); | |
732 | SETERRNO(EBADF,RMS$_IFI); | |
733 | return -1L; | |
734 | } | |
735 | ||
6ff81951 GS |
736 | int |
737 | do_binmode(PerlIO *fp, int iotype, int flag) | |
738 | { | |
739 | if (flag != TRUE) | |
740 | croak("panic: unsetting binmode"); /* Not implemented yet */ | |
741 | #ifdef DOSISH | |
742 | #ifdef atarist | |
743 | if (!PerlIO_flush(fp) && (fp->_flag |= _IOBIN)) | |
744 | return 1; | |
745 | else | |
746 | return 0; | |
747 | #else | |
748 | if (PerlLIO_setmode(PerlIO_fileno(fp), OP_BINARY) != -1) { | |
749 | #if defined(WIN32) && defined(__BORLANDC__) | |
750 | /* The translation mode of the stream is maintained independent | |
751 | * of the translation mode of the fd in the Borland RTL (heavy | |
752 | * digging through their runtime sources reveal). User has to | |
753 | * set the mode explicitly for the stream (though they don't | |
754 | * document this anywhere). GSAR 97-5-24 | |
755 | */ | |
756 | PerlIO_seek(fp,0L,0); | |
873ef191 | 757 | ((FILE*)fp)->flags |= _F_BIN; |
6ff81951 GS |
758 | #endif |
759 | return 1; | |
760 | } | |
761 | else | |
762 | return 0; | |
763 | #endif | |
764 | #else | |
765 | #if defined(USEMYBINMODE) | |
766 | if (my_binmode(fp,iotype) != NULL) | |
767 | return 1; | |
768 | else | |
769 | return 0; | |
770 | #else | |
771 | return 1; | |
772 | #endif | |
773 | #endif | |
774 | } | |
775 | ||
a0d0e21e | 776 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 777 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 778 | #define HAS_CHSIZE |
6eb13c3b | 779 | |
517844ec | 780 | I32 my_chsize(fd, length) |
79072805 | 781 | I32 fd; /* file descriptor */ |
85e6fe83 | 782 | Off_t length; /* length to set file to */ |
6eb13c3b | 783 | { |
6eb13c3b LW |
784 | struct flock fl; |
785 | struct stat filebuf; | |
786 | ||
3028581b | 787 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
788 | return -1; |
789 | ||
790 | if (filebuf.st_size < length) { | |
791 | ||
792 | /* extend file length */ | |
793 | ||
3028581b | 794 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
795 | return -1; |
796 | ||
797 | /* write a "0" byte */ | |
798 | ||
3028581b | 799 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
800 | return -1; |
801 | } | |
802 | else { | |
803 | /* truncate length */ | |
804 | ||
805 | fl.l_whence = 0; | |
806 | fl.l_len = 0; | |
807 | fl.l_start = length; | |
a0d0e21e | 808 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
809 | |
810 | /* | |
a0d0e21e | 811 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
812 | * fcntl(2), which truncates the file so that it ends at the |
813 | * position indicated by fl.l_start. | |
814 | * | |
815 | * Will minor miracles never cease? | |
816 | */ | |
817 | ||
a0d0e21e | 818 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
819 | return -1; |
820 | ||
821 | } | |
822 | ||
823 | return 0; | |
824 | } | |
a0d0e21e | 825 | #endif /* F_FREESP */ |
ff8e2863 | 826 | |
a687059c | 827 | bool |
6acef3b7 | 828 | do_print(register SV *sv, PerlIO *fp) |
a687059c LW |
829 | { |
830 | register char *tmps; | |
463ee0b2 | 831 | STRLEN len; |
a687059c | 832 | |
79072805 LW |
833 | /* assuming fp is checked earlier */ |
834 | if (!sv) | |
835 | return TRUE; | |
836 | if (ofmt) { | |
8990e307 | 837 | if (SvGMAGICAL(sv)) |
79072805 | 838 | mg_get(sv); |
463ee0b2 | 839 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
760ac839 LW |
840 | PerlIO_printf(fp, ofmt, (double)SvIVX(sv)); |
841 | return !PerlIO_error(fp); | |
79072805 | 842 | } |
463ee0b2 | 843 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 844 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
760ac839 LW |
845 | PerlIO_printf(fp, ofmt, SvNVX(sv)); |
846 | return !PerlIO_error(fp); | |
79072805 | 847 | } |
a687059c | 848 | } |
79072805 LW |
849 | switch (SvTYPE(sv)) { |
850 | case SVt_NULL: | |
8990e307 LW |
851 | if (dowarn) |
852 | warn(warn_uninit); | |
ff8e2863 | 853 | return TRUE; |
79072805 | 854 | case SVt_IV: |
a0d0e21e LW |
855 | if (SvIOK(sv)) { |
856 | if (SvGMAGICAL(sv)) | |
857 | mg_get(sv); | |
760ac839 LW |
858 | PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); |
859 | return !PerlIO_error(fp); | |
a0d0e21e LW |
860 | } |
861 | /* FALL THROUGH */ | |
79072805 | 862 | default: |
463ee0b2 | 863 | tmps = SvPV(sv, len); |
79072805 | 864 | break; |
ff8e2863 | 865 | } |
760ac839 | 866 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c | 867 | return FALSE; |
760ac839 | 868 | return !PerlIO_error(fp); |
a687059c LW |
869 | } |
870 | ||
79072805 | 871 | I32 |
8ac85365 | 872 | my_stat(ARGSproto) |
a687059c | 873 | { |
4e35701f | 874 | djSP; |
79072805 | 875 | IO *io; |
748a9306 | 876 | GV* tmpgv; |
79072805 | 877 | |
a0d0e21e | 878 | if (op->op_flags & OPf_REF) { |
924508f0 | 879 | EXTEND(SP,1); |
748a9306 LW |
880 | tmpgv = cGVOP->op_gv; |
881 | do_fstat: | |
882 | io = GvIO(tmpgv); | |
8990e307 | 883 | if (io && IoIFP(io)) { |
748a9306 | 884 | statgv = tmpgv; |
79072805 LW |
885 | sv_setpv(statname,""); |
886 | laststype = OP_STAT; | |
3028581b | 887 | return (laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &statcache)); |
a687059c LW |
888 | } |
889 | else { | |
748a9306 | 890 | if (tmpgv == defgv) |
57ebbfd0 | 891 | return laststatval; |
a687059c LW |
892 | if (dowarn) |
893 | warn("Stat on unopened file <%s>", | |
748a9306 | 894 | GvENAME(tmpgv)); |
79072805 LW |
895 | statgv = Nullgv; |
896 | sv_setpv(statname,""); | |
57ebbfd0 | 897 | return (laststatval = -1); |
a687059c LW |
898 | } |
899 | } | |
900 | else { | |
748a9306 | 901 | SV* sv = POPs; |
4b74e3fb | 902 | char *s; |
79072805 | 903 | PUTBACK; |
748a9306 LW |
904 | if (SvTYPE(sv) == SVt_PVGV) { |
905 | tmpgv = (GV*)sv; | |
906 | goto do_fstat; | |
907 | } | |
908 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
909 | tmpgv = (GV*)SvRV(sv); | |
910 | goto do_fstat; | |
911 | } | |
912 | ||
4b74e3fb | 913 | s = SvPV(sv, na); |
79072805 | 914 | statgv = Nullgv; |
4b74e3fb | 915 | sv_setpv(statname, s); |
79072805 | 916 | laststype = OP_STAT; |
4b74e3fb HS |
917 | laststatval = PerlLIO_stat(s, &statcache); |
918 | if (laststatval < 0 && dowarn && strchr(s, '\n')) | |
bee1dbe2 LW |
919 | warn(warn_nl, "stat"); |
920 | return laststatval; | |
a687059c LW |
921 | } |
922 | } | |
923 | ||
79072805 | 924 | I32 |
8ac85365 | 925 | my_lstat(ARGSproto) |
c623bd54 | 926 | { |
4e35701f | 927 | djSP; |
79072805 | 928 | SV *sv; |
a0d0e21e | 929 | if (op->op_flags & OPf_REF) { |
924508f0 | 930 | EXTEND(SP,1); |
79072805 LW |
931 | if (cGVOP->op_gv == defgv) { |
932 | if (laststype != OP_LSTAT) | |
463ee0b2 | 933 | croak("The stat preceding -l _ wasn't an lstat"); |
fe14fcc3 LW |
934 | return laststatval; |
935 | } | |
463ee0b2 | 936 | croak("You can't use -l on a filehandle"); |
fe14fcc3 | 937 | } |
c623bd54 | 938 | |
79072805 LW |
939 | laststype = OP_LSTAT; |
940 | statgv = Nullgv; | |
941 | sv = POPs; | |
942 | PUTBACK; | |
463ee0b2 | 943 | sv_setpv(statname,SvPV(sv, na)); |
fe14fcc3 | 944 | #ifdef HAS_LSTAT |
3028581b | 945 | laststatval = PerlLIO_lstat(SvPV(sv, na),&statcache); |
c623bd54 | 946 | #else |
3028581b | 947 | laststatval = PerlLIO_stat(SvPV(sv, na),&statcache); |
c623bd54 | 948 | #endif |
463ee0b2 | 949 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
950 | warn(warn_nl, "lstat"); |
951 | return laststatval; | |
c623bd54 LW |
952 | } |
953 | ||
a687059c | 954 | bool |
8ac85365 | 955 | do_aexec(SV *really, register SV **mark, register SV **sp) |
a687059c | 956 | { |
a687059c | 957 | register char **a; |
a687059c LW |
958 | char *tmps; |
959 | ||
79072805 | 960 | if (sp > mark) { |
11343788 | 961 | dTHR; |
79072805 | 962 | New(401,Argv, sp - mark + 1, char*); |
bee1dbe2 | 963 | a = Argv; |
79072805 LW |
964 | while (++mark <= sp) { |
965 | if (*mark) | |
463ee0b2 | 966 | *a++ = SvPVx(*mark, na); |
a687059c LW |
967 | else |
968 | *a++ = ""; | |
969 | } | |
970 | *a = Nullch; | |
bee1dbe2 | 971 | if (*Argv[0] != '/') /* will execvp use PATH? */ |
79072805 | 972 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
463ee0b2 | 973 | if (really && *(tmps = SvPV(really, na))) |
3028581b | 974 | PerlProc_execvp(tmps,Argv); |
a687059c | 975 | else |
3028581b | 976 | PerlProc_execvp(Argv[0],Argv); |
a0d0e21e LW |
977 | if (dowarn) |
978 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 979 | } |
bee1dbe2 | 980 | do_execfree(); |
a687059c LW |
981 | return FALSE; |
982 | } | |
983 | ||
fe14fcc3 | 984 | void |
8ac85365 | 985 | do_execfree(void) |
ff8e2863 LW |
986 | { |
987 | if (Argv) { | |
988 | Safefree(Argv); | |
989 | Argv = Null(char **); | |
990 | } | |
991 | if (Cmd) { | |
992 | Safefree(Cmd); | |
993 | Cmd = Nullch; | |
994 | } | |
995 | } | |
996 | ||
39e571d4 | 997 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) |
760ac839 | 998 | |
a687059c | 999 | bool |
8ac85365 | 1000 | do_exec(char *cmd) |
a687059c LW |
1001 | { |
1002 | register char **a; | |
1003 | register char *s; | |
a687059c LW |
1004 | char flags[10]; |
1005 | ||
748a9306 LW |
1006 | while (*cmd && isSPACE(*cmd)) |
1007 | cmd++; | |
1008 | ||
a687059c LW |
1009 | /* save an extra exec if possible */ |
1010 | ||
bf38876a LW |
1011 | #ifdef CSH |
1012 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { | |
a687059c | 1013 | strcpy(flags,"-c"); |
bf38876a | 1014 | s = cmd+cshlen+3; |
a687059c LW |
1015 | if (*s == 'f') { |
1016 | s++; | |
1017 | strcat(flags,"f"); | |
1018 | } | |
1019 | if (*s == ' ') | |
1020 | s++; | |
1021 | if (*s++ == '\'') { | |
1022 | char *ncmd = s; | |
1023 | ||
1024 | while (*s) | |
1025 | s++; | |
1026 | if (s[-1] == '\n') | |
1027 | *--s = '\0'; | |
1028 | if (s[-1] == '\'') { | |
1029 | *--s = '\0'; | |
3028581b | 1030 | PerlProc_execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
1031 | *s = '\''; |
1032 | return FALSE; | |
1033 | } | |
1034 | } | |
1035 | } | |
bf38876a | 1036 | #endif /* CSH */ |
a687059c LW |
1037 | |
1038 | /* see if there are shell metacharacters in it */ | |
1039 | ||
748a9306 LW |
1040 | if (*cmd == '.' && isSPACE(cmd[1])) |
1041 | goto doshell; | |
1042 | ||
1043 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
1044 | goto doshell; | |
1045 | ||
99b89507 | 1046 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
1047 | if (*s == '=') |
1048 | goto doshell; | |
748a9306 | 1049 | |
a687059c | 1050 | for (s = cmd; *s; s++) { |
93a17b20 | 1051 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
1052 | if (*s == '\n' && !s[1]) { |
1053 | *s = '\0'; | |
1054 | break; | |
1055 | } | |
1056 | doshell: | |
3028581b | 1057 | PerlProc_execl(sh_path, "sh", "-c", cmd, (char*)0); |
a687059c LW |
1058 | return FALSE; |
1059 | } | |
1060 | } | |
748a9306 | 1061 | |
ff8e2863 | 1062 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
a0d0e21e | 1063 | Cmd = savepvn(cmd, s-cmd); |
ff8e2863 LW |
1064 | a = Argv; |
1065 | for (s = Cmd; *s;) { | |
99b89507 | 1066 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1067 | if (*s) |
1068 | *(a++) = s; | |
99b89507 | 1069 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1070 | if (*s) |
1071 | *s++ = '\0'; | |
1072 | } | |
1073 | *a = Nullch; | |
ff8e2863 | 1074 | if (Argv[0]) { |
3028581b | 1075 | PerlProc_execvp(Argv[0],Argv); |
b1248f16 | 1076 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1077 | do_execfree(); |
a687059c | 1078 | goto doshell; |
b1248f16 | 1079 | } |
a0d0e21e LW |
1080 | if (dowarn) |
1081 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 1082 | } |
ff8e2863 | 1083 | do_execfree(); |
a687059c LW |
1084 | return FALSE; |
1085 | } | |
1086 | ||
6890e559 | 1087 | #endif /* OS2 || WIN32 */ |
760ac839 | 1088 | |
79072805 | 1089 | I32 |
8ac85365 | 1090 | apply(I32 type, register SV **mark, register SV **sp) |
a687059c | 1091 | { |
11343788 | 1092 | dTHR; |
79072805 LW |
1093 | register I32 val; |
1094 | register I32 val2; | |
1095 | register I32 tot = 0; | |
20408e3c | 1096 | char *what; |
a687059c | 1097 | char *s; |
79072805 | 1098 | SV **oldmark = mark; |
a687059c | 1099 | |
20408e3c | 1100 | #define APPLY_TAINT_PROPER() \ |
873ef191 GS |
1101 | STMT_START { \ |
1102 | if (tainting && tainted) { goto taint_proper_label; } \ | |
1103 | } STMT_END | |
20408e3c GS |
1104 | |
1105 | /* This is a first heuristic; it doesn't catch tainting magic. */ | |
463ee0b2 LW |
1106 | if (tainting) { |
1107 | while (++mark <= sp) { | |
bbce6d69 | 1108 | if (SvTAINTED(*mark)) { |
1109 | TAINT; | |
1110 | break; | |
1111 | } | |
463ee0b2 LW |
1112 | } |
1113 | mark = oldmark; | |
1114 | } | |
a687059c | 1115 | switch (type) { |
79072805 | 1116 | case OP_CHMOD: |
20408e3c GS |
1117 | what = "chmod"; |
1118 | APPLY_TAINT_PROPER(); | |
79072805 | 1119 | if (++mark <= sp) { |
463ee0b2 | 1120 | val = SvIVx(*mark); |
20408e3c GS |
1121 | APPLY_TAINT_PROPER(); |
1122 | tot = sp - mark; | |
79072805 | 1123 | while (++mark <= sp) { |
20408e3c GS |
1124 | char *name = SvPVx(*mark, na); |
1125 | APPLY_TAINT_PROPER(); | |
1126 | if (PerlLIO_chmod(name, val)) | |
a687059c LW |
1127 | tot--; |
1128 | } | |
1129 | } | |
1130 | break; | |
fe14fcc3 | 1131 | #ifdef HAS_CHOWN |
79072805 | 1132 | case OP_CHOWN: |
20408e3c GS |
1133 | what = "chown"; |
1134 | APPLY_TAINT_PROPER(); | |
79072805 | 1135 | if (sp - mark > 2) { |
463ee0b2 LW |
1136 | val = SvIVx(*++mark); |
1137 | val2 = SvIVx(*++mark); | |
20408e3c | 1138 | APPLY_TAINT_PROPER(); |
a0d0e21e | 1139 | tot = sp - mark; |
79072805 | 1140 | while (++mark <= sp) { |
20408e3c GS |
1141 | char *name = SvPVx(*mark, na); |
1142 | APPLY_TAINT_PROPER(); | |
36660982 | 1143 | if (PerlLIO_chown(name, val, val2)) |
a687059c LW |
1144 | tot--; |
1145 | } | |
1146 | } | |
1147 | break; | |
b1248f16 | 1148 | #endif |
dd64f1c3 AD |
1149 | /* |
1150 | XXX Should we make lchown() directly available from perl? | |
1151 | For now, we'll let Configure test for HAS_LCHOWN, but do | |
1152 | nothing in the core. | |
1153 | --AD 5/1998 | |
1154 | */ | |
fe14fcc3 | 1155 | #ifdef HAS_KILL |
79072805 | 1156 | case OP_KILL: |
20408e3c GS |
1157 | what = "kill"; |
1158 | APPLY_TAINT_PROPER(); | |
55497cff | 1159 | if (mark == sp) |
1160 | break; | |
463ee0b2 | 1161 | s = SvPVx(*++mark, na); |
79072805 LW |
1162 | if (isUPPER(*s)) { |
1163 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') | |
1164 | s += 3; | |
1165 | if (!(val = whichsig(s))) | |
463ee0b2 | 1166 | croak("Unrecognized signal name \"%s\"",s); |
79072805 LW |
1167 | } |
1168 | else | |
463ee0b2 | 1169 | val = SvIVx(*mark); |
20408e3c GS |
1170 | APPLY_TAINT_PROPER(); |
1171 | tot = sp - mark; | |
3595fcef | 1172 | #ifdef VMS |
1173 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
1174 | if (val < 0) val = -val; | |
1175 | if (val == SIGKILL) { | |
1176 | # include <starlet.h> | |
1177 | /* Use native sys$delprc() to insure that target process is | |
1178 | * deleted; supervisor-mode images don't pay attention to | |
1179 | * CRTL's emulation of Unix-style signals and kill() | |
1180 | */ | |
1181 | while (++mark <= sp) { | |
1182 | I32 proc = SvIVx(*mark); | |
1183 | register unsigned long int __vmssts; | |
20408e3c | 1184 | APPLY_TAINT_PROPER(); |
3595fcef | 1185 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { |
1186 | tot--; | |
1187 | switch (__vmssts) { | |
1188 | case SS$_NONEXPR: | |
1189 | case SS$_NOSUCHNODE: | |
1190 | SETERRNO(ESRCH,__vmssts); | |
1191 | break; | |
1192 | case SS$_NOPRIV: | |
1193 | SETERRNO(EPERM,__vmssts); | |
1194 | break; | |
1195 | default: | |
1196 | SETERRNO(EVMSERR,__vmssts); | |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | break; | |
1201 | } | |
1202 | #endif | |
79072805 LW |
1203 | if (val < 0) { |
1204 | val = -val; | |
1205 | while (++mark <= sp) { | |
463ee0b2 | 1206 | I32 proc = SvIVx(*mark); |
20408e3c | 1207 | APPLY_TAINT_PROPER(); |
fe14fcc3 | 1208 | #ifdef HAS_KILLPG |
3028581b | 1209 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c | 1210 | #else |
3028581b | 1211 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c | 1212 | #endif |
79072805 | 1213 | tot--; |
a687059c | 1214 | } |
79072805 LW |
1215 | } |
1216 | else { | |
1217 | while (++mark <= sp) { | |
20408e3c GS |
1218 | I32 proc = SvIVx(*mark); |
1219 | APPLY_TAINT_PROPER(); | |
1220 | if (PerlProc_kill(proc, val)) | |
79072805 | 1221 | tot--; |
a687059c LW |
1222 | } |
1223 | } | |
1224 | break; | |
b1248f16 | 1225 | #endif |
79072805 | 1226 | case OP_UNLINK: |
20408e3c GS |
1227 | what = "unlink"; |
1228 | APPLY_TAINT_PROPER(); | |
79072805 LW |
1229 | tot = sp - mark; |
1230 | while (++mark <= sp) { | |
463ee0b2 | 1231 | s = SvPVx(*mark, na); |
20408e3c | 1232 | APPLY_TAINT_PROPER(); |
a687059c LW |
1233 | if (euid || unsafe) { |
1234 | if (UNLINK(s)) | |
1235 | tot--; | |
1236 | } | |
1237 | else { /* don't let root wipe out directories without -U */ | |
fe14fcc3 | 1238 | #ifdef HAS_LSTAT |
3028581b | 1239 | if (PerlLIO_lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1240 | #else |
3028581b | 1241 | if (PerlLIO_stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1242 | #endif |
a687059c LW |
1243 | tot--; |
1244 | else { | |
1245 | if (UNLINK(s)) | |
1246 | tot--; | |
1247 | } | |
1248 | } | |
1249 | } | |
1250 | break; | |
a0d0e21e | 1251 | #ifdef HAS_UTIME |
79072805 | 1252 | case OP_UTIME: |
20408e3c GS |
1253 | what = "utime"; |
1254 | APPLY_TAINT_PROPER(); | |
79072805 | 1255 | if (sp - mark > 2) { |
748a9306 | 1256 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1257 | struct utimbuf utbuf; |
1258 | #else | |
a687059c | 1259 | struct { |
663a0e37 LW |
1260 | long actime; |
1261 | long modtime; | |
a687059c | 1262 | } utbuf; |
663a0e37 | 1263 | #endif |
a687059c | 1264 | |
afd9f252 | 1265 | Zero(&utbuf, sizeof utbuf, char); |
517844ec | 1266 | #ifdef BIG_TIME |
1267 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ | |
1268 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ | |
1269 | #else | |
463ee0b2 LW |
1270 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1271 | utbuf.modtime = SvIVx(*++mark); /* time modified */ | |
517844ec | 1272 | #endif |
20408e3c | 1273 | APPLY_TAINT_PROPER(); |
79072805 LW |
1274 | tot = sp - mark; |
1275 | while (++mark <= sp) { | |
20408e3c GS |
1276 | char *name = SvPVx(*mark, na); |
1277 | APPLY_TAINT_PROPER(); | |
1278 | if (PerlLIO_utime(name, &utbuf)) | |
a687059c LW |
1279 | tot--; |
1280 | } | |
a687059c LW |
1281 | } |
1282 | else | |
79072805 | 1283 | tot = 0; |
a687059c | 1284 | break; |
a0d0e21e | 1285 | #endif |
a687059c LW |
1286 | } |
1287 | return tot; | |
20408e3c | 1288 | |
873ef191 | 1289 | taint_proper_label: |
20408e3c GS |
1290 | TAINT_PROPER(what); |
1291 | return 0; /* this should never happen */ | |
1292 | ||
1293 | #undef APPLY_TAINT_PROPER | |
a687059c LW |
1294 | } |
1295 | ||
1296 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1297 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 | 1298 | I32 |
8ac85365 | 1299 | cando(I32 bit, I32 effective, register struct stat *statbufp) |
a687059c | 1300 | { |
bee1dbe2 | 1301 | #ifdef DOSISH |
fe14fcc3 LW |
1302 | /* [Comments and code from Len Reed] |
1303 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1304 | * to write-protected files. The execute permission bit is set | |
1305 | * by the Miscrosoft C library stat() function for the following: | |
1306 | * .exe files | |
1307 | * .com files | |
1308 | * .bat files | |
1309 | * directories | |
1310 | * All files and directories are readable. | |
1311 | * Directories and special files, e.g. "CON", cannot be | |
1312 | * write-protected. | |
1313 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1314 | * bit set in the file system, but DOS permits changes to | |
1315 | * the directory anyway. In addition, all bets are off | |
1316 | * here for networked software, such as Novell and | |
1317 | * Sun's PC-NFS.] | |
1318 | */ | |
1319 | ||
bee1dbe2 LW |
1320 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1321 | * too so it will actually look into the files for magic numbers | |
1322 | */ | |
fe14fcc3 LW |
1323 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1324 | ||
55497cff | 1325 | #else /* ! DOSISH */ |
a687059c | 1326 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 LW |
1327 | if (bit == S_IXUSR) { |
1328 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) | |
a687059c LW |
1329 | return TRUE; |
1330 | } | |
1331 | else | |
1332 | return TRUE; /* root reads and writes anything */ | |
1333 | return FALSE; | |
1334 | } | |
1335 | if (statbufp->st_uid == (effective ? euid : uid) ) { | |
1336 | if (statbufp->st_mode & bit) | |
1337 | return TRUE; /* ok as "user" */ | |
1338 | } | |
79072805 | 1339 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c LW |
1340 | if (statbufp->st_mode & bit >> 3) |
1341 | return TRUE; /* ok as "group" */ | |
1342 | } | |
1343 | else if (statbufp->st_mode & bit >> 6) | |
1344 | return TRUE; /* ok as "other" */ | |
1345 | return FALSE; | |
55497cff | 1346 | #endif /* ! DOSISH */ |
a687059c | 1347 | } |
a0d0e21e | 1348 | #endif /* ! VMS */ |
a687059c | 1349 | |
79072805 | 1350 | I32 |
8ac85365 | 1351 | ingroup(I32 testgid, I32 effective) |
a687059c LW |
1352 | { |
1353 | if (testgid == (effective ? egid : gid)) | |
1354 | return TRUE; | |
fe14fcc3 | 1355 | #ifdef HAS_GETGROUPS |
a687059c LW |
1356 | #ifndef NGROUPS |
1357 | #define NGROUPS 32 | |
1358 | #endif | |
1359 | { | |
a0d0e21e | 1360 | Groups_t gary[NGROUPS]; |
79072805 | 1361 | I32 anum; |
a687059c LW |
1362 | |
1363 | anum = getgroups(NGROUPS,gary); | |
1364 | while (--anum >= 0) | |
1365 | if (gary[anum] == testgid) | |
1366 | return TRUE; | |
1367 | } | |
1368 | #endif | |
1369 | return FALSE; | |
1370 | } | |
c2ab57d4 | 1371 | |
fe14fcc3 | 1372 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1373 | |
79072805 | 1374 | I32 |
8ac85365 | 1375 | do_ipcget(I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1376 | { |
11343788 | 1377 | dTHR; |
c2ab57d4 | 1378 | key_t key; |
79072805 | 1379 | I32 n, flags; |
c2ab57d4 | 1380 | |
463ee0b2 LW |
1381 | key = (key_t)SvNVx(*++mark); |
1382 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1383 | flags = SvIVx(*++mark); | |
748a9306 | 1384 | SETERRNO(0,0); |
c2ab57d4 LW |
1385 | switch (optype) |
1386 | { | |
fe14fcc3 | 1387 | #ifdef HAS_MSG |
79072805 | 1388 | case OP_MSGGET: |
c2ab57d4 | 1389 | return msgget(key, flags); |
e5d73d77 | 1390 | #endif |
fe14fcc3 | 1391 | #ifdef HAS_SEM |
79072805 | 1392 | case OP_SEMGET: |
c2ab57d4 | 1393 | return semget(key, n, flags); |
e5d73d77 | 1394 | #endif |
fe14fcc3 | 1395 | #ifdef HAS_SHM |
79072805 | 1396 | case OP_SHMGET: |
c2ab57d4 | 1397 | return shmget(key, n, flags); |
e5d73d77 | 1398 | #endif |
fe14fcc3 | 1399 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1400 | default: |
c07a80fd | 1401 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 | 1402 | #endif |
c2ab57d4 LW |
1403 | } |
1404 | return -1; /* should never happen */ | |
1405 | } | |
1406 | ||
79072805 | 1407 | I32 |
8ac85365 | 1408 | do_ipcctl(I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1409 | { |
11343788 | 1410 | dTHR; |
79072805 | 1411 | SV *astr; |
c2ab57d4 | 1412 | char *a; |
a0d0e21e LW |
1413 | I32 id, n, cmd, infosize, getinfo; |
1414 | I32 ret = -1; | |
c2ab57d4 | 1415 | |
463ee0b2 LW |
1416 | id = SvIVx(*++mark); |
1417 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1418 | cmd = SvIVx(*++mark); | |
79072805 | 1419 | astr = *++mark; |
c2ab57d4 LW |
1420 | infosize = 0; |
1421 | getinfo = (cmd == IPC_STAT); | |
1422 | ||
1423 | switch (optype) | |
1424 | { | |
fe14fcc3 | 1425 | #ifdef HAS_MSG |
79072805 | 1426 | case OP_MSGCTL: |
c2ab57d4 LW |
1427 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1428 | infosize = sizeof(struct msqid_ds); | |
1429 | break; | |
e5d73d77 | 1430 | #endif |
fe14fcc3 | 1431 | #ifdef HAS_SHM |
79072805 | 1432 | case OP_SHMCTL: |
c2ab57d4 LW |
1433 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1434 | infosize = sizeof(struct shmid_ds); | |
1435 | break; | |
e5d73d77 | 1436 | #endif |
fe14fcc3 | 1437 | #ifdef HAS_SEM |
79072805 | 1438 | case OP_SEMCTL: |
c2ab57d4 LW |
1439 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1440 | infosize = sizeof(struct semid_ds); | |
1441 | else if (cmd == GETALL || cmd == SETALL) | |
1442 | { | |
8e591e46 | 1443 | struct semid_ds semds; |
bd89102f AD |
1444 | union semun semun; |
1445 | ||
84902520 | 1446 | semun.buf = &semds; |
c2ab57d4 | 1447 | getinfo = (cmd == GETALL); |
9b89d93d GB |
1448 | if (Semctl(id, 0, IPC_STAT, semun) == -1) |
1449 | return -1; | |
6e21c824 LW |
1450 | infosize = semds.sem_nsems * sizeof(short); |
1451 | /* "short" is technically wrong but much more portable | |
1452 | than guessing about u_?short(_t)? */ | |
c2ab57d4 LW |
1453 | } |
1454 | break; | |
e5d73d77 | 1455 | #endif |
fe14fcc3 | 1456 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1457 | default: |
c07a80fd | 1458 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 | 1459 | #endif |
c2ab57d4 LW |
1460 | } |
1461 | ||
1462 | if (infosize) | |
1463 | { | |
a0d0e21e | 1464 | STRLEN len; |
c2ab57d4 LW |
1465 | if (getinfo) |
1466 | { | |
a0d0e21e LW |
1467 | SvPV_force(astr, len); |
1468 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
1469 | } |
1470 | else | |
1471 | { | |
463ee0b2 LW |
1472 | a = SvPV(astr, len); |
1473 | if (len != infosize) | |
9607fc9c | 1474 | croak("Bad arg length for %s, is %lu, should be %ld", |
1475 | op_desc[optype], (unsigned long)len, (long)infosize); | |
c2ab57d4 LW |
1476 | } |
1477 | } | |
1478 | else | |
1479 | { | |
c030ccd9 | 1480 | IV i = SvIV(astr); |
c2ab57d4 LW |
1481 | a = (char *)i; /* ouch */ |
1482 | } | |
748a9306 | 1483 | SETERRNO(0,0); |
c2ab57d4 LW |
1484 | switch (optype) |
1485 | { | |
fe14fcc3 | 1486 | #ifdef HAS_MSG |
79072805 | 1487 | case OP_MSGCTL: |
bee1dbe2 | 1488 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 1489 | break; |
e5d73d77 | 1490 | #endif |
fe14fcc3 | 1491 | #ifdef HAS_SEM |
bd89102f AD |
1492 | case OP_SEMCTL: { |
1493 | union semun unsemds; | |
1494 | ||
1495 | unsemds.buf = (struct semid_ds *)a; | |
1496 | ret = Semctl(id, n, cmd, unsemds); | |
1497 | } | |
c2ab57d4 | 1498 | break; |
e5d73d77 | 1499 | #endif |
fe14fcc3 | 1500 | #ifdef HAS_SHM |
79072805 | 1501 | case OP_SHMCTL: |
bee1dbe2 | 1502 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 1503 | break; |
e5d73d77 | 1504 | #endif |
c2ab57d4 LW |
1505 | } |
1506 | if (getinfo && ret >= 0) { | |
79072805 LW |
1507 | SvCUR_set(astr, infosize); |
1508 | *SvEND(astr) = '\0'; | |
a0d0e21e | 1509 | SvSETMAGIC(astr); |
c2ab57d4 LW |
1510 | } |
1511 | return ret; | |
1512 | } | |
1513 | ||
79072805 | 1514 | I32 |
8ac85365 | 1515 | do_msgsnd(SV **mark, SV **sp) |
c2ab57d4 | 1516 | { |
fe14fcc3 | 1517 | #ifdef HAS_MSG |
11343788 | 1518 | dTHR; |
79072805 | 1519 | SV *mstr; |
c2ab57d4 | 1520 | char *mbuf; |
79072805 | 1521 | I32 id, msize, flags; |
463ee0b2 | 1522 | STRLEN len; |
c2ab57d4 | 1523 | |
463ee0b2 | 1524 | id = SvIVx(*++mark); |
79072805 | 1525 | mstr = *++mark; |
463ee0b2 LW |
1526 | flags = SvIVx(*++mark); |
1527 | mbuf = SvPV(mstr, len); | |
1528 | if ((msize = len - sizeof(long)) < 0) | |
1529 | croak("Arg too short for msgsnd"); | |
748a9306 | 1530 | SETERRNO(0,0); |
bee1dbe2 | 1531 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 1532 | #else |
463ee0b2 | 1533 | croak("msgsnd not implemented"); |
e5d73d77 | 1534 | #endif |
c2ab57d4 LW |
1535 | } |
1536 | ||
79072805 | 1537 | I32 |
8ac85365 | 1538 | do_msgrcv(SV **mark, SV **sp) |
c2ab57d4 | 1539 | { |
fe14fcc3 | 1540 | #ifdef HAS_MSG |
11343788 | 1541 | dTHR; |
79072805 | 1542 | SV *mstr; |
c2ab57d4 LW |
1543 | char *mbuf; |
1544 | long mtype; | |
79072805 | 1545 | I32 id, msize, flags, ret; |
463ee0b2 | 1546 | STRLEN len; |
79072805 | 1547 | |
463ee0b2 | 1548 | id = SvIVx(*++mark); |
79072805 | 1549 | mstr = *++mark; |
463ee0b2 LW |
1550 | msize = SvIVx(*++mark); |
1551 | mtype = (long)SvIVx(*++mark); | |
1552 | flags = SvIVx(*++mark); | |
ed6116ce LW |
1553 | if (SvTHINKFIRST(mstr)) { |
1554 | if (SvREADONLY(mstr)) | |
1555 | croak("Can't msgrcv to readonly var"); | |
1556 | if (SvROK(mstr)) | |
1557 | sv_unref(mstr); | |
1558 | } | |
a0d0e21e LW |
1559 | SvPV_force(mstr, len); |
1560 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
1561 | ||
748a9306 | 1562 | SETERRNO(0,0); |
bee1dbe2 | 1563 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 1564 | if (ret >= 0) { |
79072805 LW |
1565 | SvCUR_set(mstr, sizeof(long)+ret); |
1566 | *SvEND(mstr) = '\0'; | |
c2ab57d4 LW |
1567 | } |
1568 | return ret; | |
e5d73d77 | 1569 | #else |
463ee0b2 | 1570 | croak("msgrcv not implemented"); |
e5d73d77 | 1571 | #endif |
c2ab57d4 LW |
1572 | } |
1573 | ||
79072805 | 1574 | I32 |
8ac85365 | 1575 | do_semop(SV **mark, SV **sp) |
c2ab57d4 | 1576 | { |
fe14fcc3 | 1577 | #ifdef HAS_SEM |
11343788 | 1578 | dTHR; |
79072805 | 1579 | SV *opstr; |
c2ab57d4 | 1580 | char *opbuf; |
463ee0b2 LW |
1581 | I32 id; |
1582 | STRLEN opsize; | |
c2ab57d4 | 1583 | |
463ee0b2 | 1584 | id = SvIVx(*++mark); |
79072805 | 1585 | opstr = *++mark; |
463ee0b2 | 1586 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 LW |
1587 | if (opsize < sizeof(struct sembuf) |
1588 | || (opsize % sizeof(struct sembuf)) != 0) { | |
748a9306 | 1589 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 LW |
1590 | return -1; |
1591 | } | |
748a9306 | 1592 | SETERRNO(0,0); |
6e21c824 | 1593 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 | 1594 | #else |
463ee0b2 | 1595 | croak("semop not implemented"); |
e5d73d77 | 1596 | #endif |
c2ab57d4 LW |
1597 | } |
1598 | ||
79072805 | 1599 | I32 |
8ac85365 | 1600 | do_shmio(I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1601 | { |
fe14fcc3 | 1602 | #ifdef HAS_SHM |
11343788 | 1603 | dTHR; |
79072805 | 1604 | SV *mstr; |
c2ab57d4 | 1605 | char *mbuf, *shm; |
79072805 | 1606 | I32 id, mpos, msize; |
463ee0b2 | 1607 | STRLEN len; |
c2ab57d4 | 1608 | struct shmid_ds shmds; |
c2ab57d4 | 1609 | |
463ee0b2 | 1610 | id = SvIVx(*++mark); |
79072805 | 1611 | mstr = *++mark; |
463ee0b2 LW |
1612 | mpos = SvIVx(*++mark); |
1613 | msize = SvIVx(*++mark); | |
748a9306 | 1614 | SETERRNO(0,0); |
c2ab57d4 LW |
1615 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1616 | return -1; | |
1617 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
748a9306 | 1618 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
1619 | return -1; |
1620 | } | |
8ac85365 | 1621 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
1622 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1623 | return -1; | |
79072805 | 1624 | if (optype == OP_SHMREAD) { |
a0d0e21e LW |
1625 | SvPV_force(mstr, len); |
1626 | mbuf = SvGROW(mstr, msize+1); | |
1627 | ||
bee1dbe2 | 1628 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
1629 | SvCUR_set(mstr, msize); |
1630 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 1631 | SvSETMAGIC(mstr); |
c2ab57d4 LW |
1632 | } |
1633 | else { | |
79072805 | 1634 | I32 n; |
c2ab57d4 | 1635 | |
a0d0e21e | 1636 | mbuf = SvPV(mstr, len); |
463ee0b2 | 1637 | if ((n = len) > msize) |
c2ab57d4 | 1638 | n = msize; |
bee1dbe2 | 1639 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 1640 | if (n < msize) |
bee1dbe2 | 1641 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
1642 | } |
1643 | return shmdt(shm); | |
e5d73d77 | 1644 | #else |
463ee0b2 | 1645 | croak("shm I/O not implemented"); |
e5d73d77 | 1646 | #endif |
c2ab57d4 LW |
1647 | } |
1648 | ||
fe14fcc3 | 1649 | #endif /* SYSV IPC */ |
4e35701f | 1650 |