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 |
3fe9a6f1 | 37 | # ifdef WIN32 |
38 | # include <sys/utime.h> | |
39 | # else | |
40 | # include <utime.h> | |
41 | # endif | |
663a0e37 | 42 | #endif |
ff8e2863 LW |
43 | #ifdef I_FCNTL |
44 | #include <fcntl.h> | |
45 | #endif | |
fe14fcc3 LW |
46 | #ifdef I_SYS_FILE |
47 | #include <sys/file.h> | |
48 | #endif | |
a687059c | 49 | |
76121258 | 50 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
51 | #include <signal.h> | |
52 | #endif | |
53 | ||
54 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ | |
55 | #ifdef I_UNISTD | |
56 | # include <unistd.h> | |
57 | #endif | |
58 | ||
232e078e AD |
59 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
60 | # include <sys/socket.h> | |
61 | # include <netdb.h> | |
62 | # ifndef ENOTSOCK | |
63 | # ifdef I_NET_ERRNO | |
64 | # include <net/errno.h> | |
65 | # endif | |
66 | # endif | |
67 | #endif | |
68 | ||
d574b85e CS |
69 | /* Put this after #includes because <unistd.h> defines _XOPEN_*. */ |
70 | #ifndef Sock_size_t | |
137443ea | 71 | # if _XOPEN_VERSION >= 5 || defined(_XOPEN_SOURCE_EXTENDED) || defined(__GLIBC__) |
d574b85e CS |
72 | # define Sock_size_t Size_t |
73 | # else | |
74 | # define Sock_size_t int | |
75 | # endif | |
76 | #endif | |
77 | ||
a687059c | 78 | bool |
c07a80fd | 79 | do_open(gv,name,len,as_raw,rawmode,rawperm,supplied_fp) |
79072805 | 80 | GV *gv; |
a687059c | 81 | register char *name; |
79072805 | 82 | I32 len; |
c07a80fd | 83 | int as_raw; |
84 | int rawmode, rawperm; | |
760ac839 | 85 | 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; | |
a687059c | 95 | |
a687059c | 96 | forkprocess = 1; /* assume true if no fork */ |
c07a80fd | 97 | |
a0d0e21e | 98 | if (IoIFP(io)) { |
760ac839 | 99 | fd = PerlIO_fileno(IoIFP(io)); |
8990e307 | 100 | if (IoTYPE(io) == '-') |
c2ab57d4 | 101 | result = 0; |
6e21c824 | 102 | else if (fd <= maxsysfd) { |
8990e307 LW |
103 | saveifp = IoIFP(io); |
104 | saveofp = IoOFP(io); | |
105 | savetype = IoTYPE(io); | |
6e21c824 LW |
106 | result = 0; |
107 | } | |
8990e307 LW |
108 | else if (IoTYPE(io) == '|') |
109 | result = my_pclose(IoIFP(io)); | |
110 | else if (IoIFP(io) != IoOFP(io)) { | |
111 | if (IoOFP(io)) { | |
760ac839 LW |
112 | result = PerlIO_close(IoOFP(io)); |
113 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
114 | } |
115 | else | |
760ac839 | 116 | result = PerlIO_close(IoIFP(io)); |
a687059c | 117 | } |
a687059c | 118 | else |
760ac839 | 119 | result = PerlIO_close(IoIFP(io)); |
6e21c824 | 120 | if (result == EOF && fd > maxsysfd) |
760ac839 | 121 | PerlIO_printf(PerlIO_stderr(), "Warning: unable to close filehandle %s properly.\n", |
79072805 | 122 | GvENAME(gv)); |
8990e307 | 123 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c | 124 | } |
c07a80fd | 125 | |
126 | if (as_raw) { | |
127 | result = rawmode & 3; | |
128 | IoTYPE(io) = "<>++"[result]; | |
129 | writing = (result > 0); | |
130 | fd = open(name, rawmode, rawperm); | |
131 | if (fd == -1) | |
132 | fp = NULL; | |
133 | else { | |
360e5741 CS |
134 | char *fpmode; |
135 | if (result == 0) | |
136 | fpmode = "r"; | |
137 | #ifdef O_APPEND | |
138 | else if (rawmode & O_APPEND) | |
139 | fpmode = (result == 1) ? "a" : "a+"; | |
140 | #endif | |
141 | else | |
142 | fpmode = (result == 1) ? "w" : "r+"; | |
143 | fp = PerlIO_fdopen(fd, fpmode); | |
c07a80fd | 144 | if (!fp) |
145 | close(fd); | |
146 | } | |
a687059c | 147 | } |
c07a80fd | 148 | else { |
149 | char *myname; | |
150 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ | |
151 | int dodup; | |
152 | ||
153 | myname = savepvn(name, len); | |
154 | SAVEFREEPV(myname); | |
155 | name = myname; | |
156 | while (len && isSPACE(name[len-1])) | |
157 | name[--len] = '\0'; | |
158 | ||
159 | mode[0] = mode[1] = mode[2] = '\0'; | |
160 | IoTYPE(io) = *name; | |
161 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ | |
162 | mode[1] = *name++; | |
163 | --len; | |
164 | writing = 1; | |
a687059c | 165 | } |
c07a80fd | 166 | |
167 | if (*name == '|') { | |
168 | /*SUPPRESS 530*/ | |
169 | for (name++; isSPACE(*name); name++) ; | |
170 | if (strNE(name,"-")) | |
171 | TAINT_ENV(); | |
172 | TAINT_PROPER("piped open"); | |
173 | if (dowarn && name[strlen(name)-1] == '|') | |
174 | warn("Can't do bidirectional pipe"); | |
175 | fp = my_popen(name,"w"); | |
176 | writing = 1; | |
177 | } | |
178 | else if (*name == '>') { | |
179 | TAINT_PROPER("open"); | |
bf38876a | 180 | name++; |
c07a80fd | 181 | if (*name == '>') { |
182 | mode[0] = IoTYPE(io) = 'a'; | |
bf38876a | 183 | name++; |
a0d0e21e | 184 | } |
c07a80fd | 185 | else |
186 | mode[0] = 'w'; | |
187 | writing = 1; | |
188 | ||
189 | if (*name == '&') { | |
190 | duplicity: | |
191 | dodup = 1; | |
192 | name++; | |
193 | if (*name == '=') { | |
194 | dodup = 0; | |
a0d0e21e | 195 | name++; |
c07a80fd | 196 | } |
197 | if (!*name && supplied_fp) | |
198 | fp = supplied_fp; | |
a0d0e21e | 199 | else { |
c07a80fd | 200 | /*SUPPRESS 530*/ |
201 | for (; isSPACE(*name); name++) ; | |
202 | if (isDIGIT(*name)) | |
203 | fd = atoi(name); | |
204 | else { | |
205 | IO* thatio; | |
206 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); | |
207 | thatio = GvIO(gv); | |
208 | if (!thatio) { | |
6e21c824 | 209 | #ifdef EINVAL |
c07a80fd | 210 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 | 211 | #endif |
c07a80fd | 212 | goto say_false; |
213 | } | |
214 | if (IoIFP(thatio)) { | |
760ac839 | 215 | fd = PerlIO_fileno(IoIFP(thatio)); |
c07a80fd | 216 | if (IoTYPE(thatio) == 's') |
217 | IoTYPE(io) = 's'; | |
218 | } | |
219 | else | |
220 | fd = -1; | |
a0d0e21e | 221 | } |
fec02dd3 | 222 | if (dodup) |
c07a80fd | 223 | fd = dup(fd); |
760ac839 | 224 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd | 225 | if (dodup) |
226 | close(fd); | |
517844ec | 227 | } |
c07a80fd | 228 | } |
bf38876a | 229 | } |
c07a80fd | 230 | else { |
231 | /*SUPPRESS 530*/ | |
232 | for (; isSPACE(*name); name++) ; | |
233 | if (strEQ(name,"-")) { | |
760ac839 | 234 | fp = PerlIO_stdout(); |
c07a80fd | 235 | IoTYPE(io) = '-'; |
236 | } | |
237 | else { | |
760ac839 | 238 | fp = PerlIO_open(name,mode); |
c07a80fd | 239 | } |
bf38876a LW |
240 | } |
241 | } | |
c07a80fd | 242 | else if (*name == '<') { |
243 | /*SUPPRESS 530*/ | |
244 | for (name++; isSPACE(*name); name++) ; | |
bf38876a | 245 | mode[0] = 'r'; |
bf38876a LW |
246 | if (*name == '&') |
247 | goto duplicity; | |
a687059c | 248 | if (strEQ(name,"-")) { |
760ac839 | 249 | fp = PerlIO_stdin(); |
8990e307 | 250 | IoTYPE(io) = '-'; |
a687059c | 251 | } |
bf38876a | 252 | else |
760ac839 | 253 | fp = PerlIO_open(name,mode); |
a687059c LW |
254 | } |
255 | else if (name[len-1] == '|') { | |
a687059c | 256 | name[--len] = '\0'; |
99b89507 | 257 | while (len && isSPACE(name[len-1])) |
a687059c | 258 | name[--len] = '\0'; |
99b89507 LW |
259 | /*SUPPRESS 530*/ |
260 | for (; isSPACE(*name); name++) ; | |
79072805 LW |
261 | if (strNE(name,"-")) |
262 | TAINT_ENV(); | |
263 | TAINT_PROPER("piped open"); | |
264 | fp = my_popen(name,"r"); | |
8990e307 | 265 | IoTYPE(io) = '|'; |
a687059c LW |
266 | } |
267 | else { | |
8990e307 | 268 | IoTYPE(io) = '<'; |
99b89507 LW |
269 | /*SUPPRESS 530*/ |
270 | for (; isSPACE(*name); name++) ; | |
a687059c | 271 | if (strEQ(name,"-")) { |
760ac839 | 272 | fp = PerlIO_stdin(); |
8990e307 | 273 | IoTYPE(io) = '-'; |
a687059c LW |
274 | } |
275 | else | |
760ac839 | 276 | fp = PerlIO_open(name,"r"); |
a687059c LW |
277 | } |
278 | } | |
bee1dbe2 | 279 | if (!fp) { |
8990e307 | 280 | if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n')) |
bee1dbe2 | 281 | warn(warn_nl, "open"); |
6e21c824 | 282 | goto say_false; |
bee1dbe2 | 283 | } |
8990e307 LW |
284 | if (IoTYPE(io) && |
285 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { | |
760ac839 LW |
286 | if (Fstat(PerlIO_fileno(fp),&statbuf) < 0) { |
287 | (void)PerlIO_close(fp); | |
6e21c824 | 288 | goto say_false; |
a687059c | 289 | } |
1462b684 | 290 | if (S_ISSOCK(statbuf.st_mode)) |
8990e307 | 291 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 LW |
292 | #ifdef HAS_SOCKET |
293 | else if ( | |
c623bd54 | 294 | #ifdef S_IFMT |
99b89507 LW |
295 | !(statbuf.st_mode & S_IFMT) |
296 | #else | |
297 | !statbuf.st_mode | |
298 | #endif | |
299 | ) { | |
d574b85e CS |
300 | Sock_size_t buflen = sizeof tokenbuf; |
301 | if (getsockname(PerlIO_fileno(fp), (struct sockaddr *)tokenbuf, | |
302 | &buflen) >= 0 | |
303 | || errno != ENOTSOCK) | |
8990e307 | 304 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 LW |
305 | /* but some return 0 for streams too, sigh */ |
306 | } | |
bf38876a | 307 | #endif |
a687059c | 308 | } |
6e21c824 | 309 | if (saveifp) { /* must use old fp? */ |
760ac839 | 310 | fd = PerlIO_fileno(saveifp); |
6e21c824 | 311 | if (saveofp) { |
760ac839 | 312 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 313 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 314 | PerlIO_close(saveofp); |
99b89507 LW |
315 | if (fd > 2) |
316 | Safefree(saveofp); | |
6e21c824 LW |
317 | } |
318 | } | |
760ac839 | 319 | if (fd != PerlIO_fileno(fp)) { |
bee1dbe2 | 320 | int pid; |
79072805 | 321 | SV *sv; |
bee1dbe2 | 322 | |
760ac839 LW |
323 | dup2(PerlIO_fileno(fp), fd); |
324 | sv = *av_fetch(fdpid,PerlIO_fileno(fp),TRUE); | |
a0d0e21e | 325 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 LW |
326 | pid = SvIVX(sv); |
327 | SvIVX(sv) = 0; | |
79072805 | 328 | sv = *av_fetch(fdpid,fd,TRUE); |
a0d0e21e | 329 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 | 330 | SvIVX(sv) = pid; |
760ac839 | 331 | PerlIO_close(fp); |
bee1dbe2 | 332 | |
6e21c824 LW |
333 | } |
334 | fp = saveifp; | |
760ac839 | 335 | PerlIO_clearerr(fp); |
6e21c824 | 336 | } |
a0d0e21e | 337 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 | 338 | fd = PerlIO_fileno(fp); |
a0d0e21e | 339 | fcntl(fd,F_SETFD,fd > maxsysfd); |
1462b684 | 340 | #endif |
8990e307 | 341 | IoIFP(io) = fp; |
bf38876a | 342 | if (writing) { |
8990e307 LW |
343 | if (IoTYPE(io) == 's' |
344 | || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { | |
760ac839 LW |
345 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
346 | PerlIO_close(fp); | |
8990e307 | 347 | IoIFP(io) = Nullfp; |
6e21c824 | 348 | goto say_false; |
fe14fcc3 | 349 | } |
1462b684 LW |
350 | } |
351 | else | |
8990e307 | 352 | IoOFP(io) = fp; |
bf38876a | 353 | } |
a687059c | 354 | return TRUE; |
6e21c824 LW |
355 | |
356 | say_false: | |
8990e307 LW |
357 | IoIFP(io) = saveifp; |
358 | IoOFP(io) = saveofp; | |
359 | IoTYPE(io) = savetype; | |
6e21c824 | 360 | return FALSE; |
a687059c LW |
361 | } |
362 | ||
760ac839 | 363 | PerlIO * |
79072805 LW |
364 | nextargv(gv) |
365 | register GV *gv; | |
a687059c | 366 | { |
79072805 | 367 | register SV *sv; |
99b89507 | 368 | #ifndef FLEXFILENAMES |
c623bd54 LW |
369 | int filedev; |
370 | int fileino; | |
99b89507 | 371 | #endif |
c623bd54 LW |
372 | int fileuid; |
373 | int filegid; | |
fe14fcc3 | 374 | |
79072805 | 375 | if (!argvoutgv) |
85e6fe83 | 376 | argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
fe14fcc3 | 377 | if (filemode & (S_ISUID|S_ISGID)) { |
760ac839 | 378 | PerlIO_flush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 LW |
379 | #ifdef HAS_FCHMOD |
380 | (void)fchmod(lastfd,filemode); | |
381 | #else | |
382 | (void)chmod(oldname,filemode); | |
383 | #endif | |
384 | } | |
385 | filemode = 0; | |
79072805 | 386 | while (av_len(GvAV(gv)) >= 0) { |
463ee0b2 | 387 | STRLEN len; |
79072805 | 388 | sv = av_shift(GvAV(gv)); |
8990e307 | 389 | SAVEFREESV(sv); |
79072805 LW |
390 | sv_setsv(GvSV(gv),sv); |
391 | SvSETMAGIC(GvSV(gv)); | |
463ee0b2 | 392 | oldname = SvPVx(GvSV(gv), len); |
c07a80fd | 393 | if (do_open(gv,oldname,len,FALSE,0,0,Nullfp)) { |
a687059c | 394 | if (inplace) { |
79072805 | 395 | TAINT_PROPER("inplace open"); |
c623bd54 | 396 | if (strEQ(oldname,"-")) { |
4633a7c4 | 397 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 398 | return IoIFP(GvIOp(gv)); |
c623bd54 | 399 | } |
99b89507 | 400 | #ifndef FLEXFILENAMES |
c623bd54 LW |
401 | filedev = statbuf.st_dev; |
402 | fileino = statbuf.st_ino; | |
99b89507 | 403 | #endif |
a687059c LW |
404 | filemode = statbuf.st_mode; |
405 | fileuid = statbuf.st_uid; | |
406 | filegid = statbuf.st_gid; | |
c623bd54 LW |
407 | if (!S_ISREG(filemode)) { |
408 | warn("Can't do inplace edit: %s is not a regular file", | |
409 | oldname ); | |
79072805 | 410 | do_close(gv,FALSE); |
c623bd54 LW |
411 | continue; |
412 | } | |
a687059c | 413 | if (*inplace) { |
ff8e2863 | 414 | #ifdef SUFFIX |
79072805 | 415 | add_suffix(sv,inplace); |
ff8e2863 | 416 | #else |
79072805 | 417 | sv_catpv(sv,inplace); |
ff8e2863 | 418 | #endif |
c623bd54 | 419 | #ifndef FLEXFILENAMES |
a0d0e21e | 420 | if (Stat(SvPVX(sv),&statbuf) >= 0 |
c623bd54 LW |
421 | && statbuf.st_dev == filedev |
422 | && statbuf.st_ino == fileino ) { | |
423 | warn("Can't do inplace edit: %s > 14 characters", | |
463ee0b2 | 424 | SvPVX(sv) ); |
79072805 | 425 | do_close(gv,FALSE); |
c623bd54 LW |
426 | continue; |
427 | } | |
428 | #endif | |
fe14fcc3 | 429 | #ifdef HAS_RENAME |
bee1dbe2 | 430 | #ifndef DOSISH |
463ee0b2 | 431 | if (rename(oldname,SvPVX(sv)) < 0) { |
c623bd54 | 432 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 433 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 434 | do_close(gv,FALSE); |
c623bd54 LW |
435 | continue; |
436 | } | |
a687059c | 437 | #else |
79072805 | 438 | do_close(gv,FALSE); |
463ee0b2 LW |
439 | (void)unlink(SvPVX(sv)); |
440 | (void)rename(oldname,SvPVX(sv)); | |
1193dd27 | 441 | do_open(gv,SvPVX(sv),SvCUR(sv),FALSE,0,0,Nullfp); |
55497cff | 442 | #endif /* DOSISH */ |
ff8e2863 | 443 | #else |
463ee0b2 LW |
444 | (void)UNLINK(SvPVX(sv)); |
445 | if (link(oldname,SvPVX(sv)) < 0) { | |
c623bd54 | 446 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 447 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 448 | do_close(gv,FALSE); |
c623bd54 LW |
449 | continue; |
450 | } | |
a687059c LW |
451 | (void)UNLINK(oldname); |
452 | #endif | |
453 | } | |
454 | else { | |
a8c18271 | 455 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 456 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
fe14fcc3 LW |
457 | if (UNLINK(oldname) < 0) { |
458 | warn("Can't rename %s to %s: %s, skipping file", | |
2304df62 | 459 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 460 | do_close(gv,FALSE); |
fe14fcc3 LW |
461 | continue; |
462 | } | |
edc7bc49 | 463 | # endif |
ff8e2863 | 464 | #else |
463ee0b2 | 465 | croak("Can't do inplace edit without backup"); |
ff8e2863 | 466 | #endif |
a687059c LW |
467 | } |
468 | ||
79072805 LW |
469 | sv_setpvn(sv,">",1); |
470 | sv_catpv(sv,oldname); | |
748a9306 | 471 | SETERRNO(0,0); /* in case sprintf set errno */ |
c07a80fd | 472 | if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),FALSE,0,0,Nullfp)) { |
c623bd54 | 473 | warn("Can't do inplace edit on %s: %s", |
2304df62 | 474 | oldname, Strerror(errno) ); |
79072805 | 475 | do_close(gv,FALSE); |
fe14fcc3 LW |
476 | continue; |
477 | } | |
4633a7c4 | 478 | setdefout(argvoutgv); |
760ac839 | 479 | lastfd = PerlIO_fileno(IoIFP(GvIOp(argvoutgv))); |
a0d0e21e | 480 | (void)Fstat(lastfd,&statbuf); |
fe14fcc3 LW |
481 | #ifdef HAS_FCHMOD |
482 | (void)fchmod(lastfd,filemode); | |
a687059c LW |
483 | #else |
484 | (void)chmod(oldname,filemode); | |
485 | #endif | |
fe14fcc3 LW |
486 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
487 | #ifdef HAS_FCHOWN | |
488 | (void)fchown(lastfd,fileuid,filegid); | |
a687059c | 489 | #else |
fe14fcc3 LW |
490 | #ifdef HAS_CHOWN |
491 | (void)chown(oldname,fileuid,filegid); | |
a687059c | 492 | #endif |
b1248f16 | 493 | #endif |
fe14fcc3 | 494 | } |
a687059c | 495 | } |
a0d0e21e | 496 | return IoIFP(GvIOp(gv)); |
a687059c LW |
497 | } |
498 | else | |
760ac839 | 499 | PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n",SvPV(sv, na), Strerror(errno)); |
a687059c LW |
500 | } |
501 | if (inplace) { | |
79072805 | 502 | (void)do_close(argvoutgv,FALSE); |
4633a7c4 | 503 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
504 | } |
505 | return Nullfp; | |
506 | } | |
507 | ||
fe14fcc3 | 508 | #ifdef HAS_PIPE |
afd9f252 | 509 | void |
79072805 LW |
510 | do_pipe(sv, rgv, wgv) |
511 | SV *sv; | |
512 | GV *rgv; | |
513 | GV *wgv; | |
afd9f252 | 514 | { |
79072805 LW |
515 | register IO *rstio; |
516 | register IO *wstio; | |
afd9f252 LW |
517 | int fd[2]; |
518 | ||
79072805 | 519 | if (!rgv) |
afd9f252 | 520 | goto badexit; |
79072805 | 521 | if (!wgv) |
afd9f252 LW |
522 | goto badexit; |
523 | ||
a0d0e21e LW |
524 | rstio = GvIOn(rgv); |
525 | wstio = GvIOn(wgv); | |
afd9f252 | 526 | |
a0d0e21e | 527 | if (IoIFP(rstio)) |
79072805 | 528 | do_close(rgv,FALSE); |
a0d0e21e | 529 | if (IoIFP(wstio)) |
79072805 | 530 | do_close(wgv,FALSE); |
afd9f252 LW |
531 | |
532 | if (pipe(fd) < 0) | |
533 | goto badexit; | |
760ac839 LW |
534 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
535 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); | |
8990e307 LW |
536 | IoIFP(wstio) = IoOFP(wstio); |
537 | IoTYPE(rstio) = '<'; | |
538 | IoTYPE(wstio) = '>'; | |
539 | if (!IoIFP(rstio) || !IoOFP(wstio)) { | |
760ac839 | 540 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
fe14fcc3 | 541 | else close(fd[0]); |
760ac839 | 542 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
fe14fcc3 LW |
543 | else close(fd[1]); |
544 | goto badexit; | |
545 | } | |
afd9f252 | 546 | |
79072805 | 547 | sv_setsv(sv,&sv_yes); |
afd9f252 LW |
548 | return; |
549 | ||
550 | badexit: | |
79072805 | 551 | sv_setsv(sv,&sv_undef); |
afd9f252 LW |
552 | return; |
553 | } | |
b1248f16 | 554 | #endif |
afd9f252 | 555 | |
517844ec | 556 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 557 | bool |
a0d0e21e | 558 | #ifndef CAN_PROTOTYPE |
517844ec | 559 | do_close(gv,not_implicit) |
79072805 | 560 | GV *gv; |
517844ec | 561 | bool not_implicit; |
8990e307 | 562 | #else |
517844ec | 563 | do_close(GV *gv, bool not_implicit) |
a0d0e21e | 564 | #endif /* CAN_PROTOTYPE */ |
a687059c | 565 | { |
1193dd27 IZ |
566 | bool retval; |
567 | IO *io; | |
a687059c | 568 | |
79072805 LW |
569 | if (!gv) |
570 | gv = argvgv; | |
a0d0e21e | 571 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
748a9306 | 572 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 | 573 | return FALSE; |
99b89507 | 574 | } |
79072805 LW |
575 | io = GvIO(gv); |
576 | if (!io) { /* never opened */ | |
517844ec | 577 | if (dowarn && not_implicit) |
79072805 | 578 | warn("Close on unopened file <%s>",GvENAME(gv)); |
a687059c LW |
579 | return FALSE; |
580 | } | |
1193dd27 | 581 | retval = io_close(io); |
517844ec | 582 | if (not_implicit) { |
1193dd27 IZ |
583 | IoLINES(io) = 0; |
584 | IoPAGE(io) = 0; | |
585 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
586 | } | |
587 | IoTYPE(io) = ' '; | |
588 | return retval; | |
589 | } | |
590 | ||
591 | bool | |
592 | io_close(io) | |
593 | IO* io; | |
594 | { | |
595 | bool retval = FALSE; | |
596 | int status; | |
597 | ||
8990e307 LW |
598 | if (IoIFP(io)) { |
599 | if (IoTYPE(io) == '|') { | |
600 | status = my_pclose(IoIFP(io)); | |
f86702cc | 601 | STATUS_NATIVE_SET(status); |
1e422769 | 602 | retval = (STATUS_POSIX == 0); |
a687059c | 603 | } |
8990e307 | 604 | else if (IoTYPE(io) == '-') |
a687059c LW |
605 | retval = TRUE; |
606 | else { | |
8990e307 | 607 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 LW |
608 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
609 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
610 | } |
611 | else | |
760ac839 | 612 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c | 613 | } |
8990e307 | 614 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 | 615 | } |
1193dd27 | 616 | |
a687059c LW |
617 | return retval; |
618 | } | |
619 | ||
620 | bool | |
79072805 LW |
621 | do_eof(gv) |
622 | GV *gv; | |
a687059c | 623 | { |
79072805 | 624 | register IO *io; |
a687059c LW |
625 | int ch; |
626 | ||
79072805 | 627 | io = GvIO(gv); |
a687059c | 628 | |
79072805 | 629 | if (!io) |
a687059c LW |
630 | return TRUE; |
631 | ||
8990e307 | 632 | while (IoIFP(io)) { |
a687059c | 633 | |
760ac839 LW |
634 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
635 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ | |
636 | return FALSE; /* this is the most usual case */ | |
637 | } | |
a687059c | 638 | |
760ac839 | 639 | ch = PerlIO_getc(IoIFP(io)); |
a687059c | 640 | if (ch != EOF) { |
760ac839 | 641 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c LW |
642 | return FALSE; |
643 | } | |
760ac839 LW |
644 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
645 | if (PerlIO_get_cnt(IoIFP(io)) < -1) | |
646 | PerlIO_set_cnt(IoIFP(io),-1); | |
647 | } | |
8990e307 | 648 | if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
79072805 | 649 | if (!nextargv(argvgv)) /* get another fp handy */ |
a687059c LW |
650 | return TRUE; |
651 | } | |
652 | else | |
653 | return TRUE; /* normal fp, definitely end of file */ | |
654 | } | |
655 | return TRUE; | |
656 | } | |
657 | ||
658 | long | |
79072805 LW |
659 | do_tell(gv) |
660 | GV *gv; | |
a687059c | 661 | { |
79072805 | 662 | register IO *io; |
96e4d5b1 | 663 | register PerlIO *fp; |
a687059c | 664 | |
96e4d5b1 | 665 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 666 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 | 667 | if (PerlIO_eof(fp)) |
668 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 669 | #endif |
8903cb82 | 670 | return PerlIO_tell(fp); |
96e4d5b1 | 671 | } |
a687059c | 672 | if (dowarn) |
8903cb82 | 673 | warn("tell() on unopened file"); |
748a9306 | 674 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
675 | return -1L; |
676 | } | |
677 | ||
678 | bool | |
79072805 LW |
679 | do_seek(gv, pos, whence) |
680 | GV *gv; | |
a687059c LW |
681 | long pos; |
682 | int whence; | |
683 | { | |
79072805 | 684 | register IO *io; |
137443ea | 685 | register PerlIO *fp; |
a687059c | 686 | |
137443ea | 687 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 688 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea | 689 | if (PerlIO_eof(fp)) |
690 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 691 | #endif |
8903cb82 | 692 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 693 | } |
a687059c | 694 | if (dowarn) |
8903cb82 | 695 | warn("seek() on unopened file"); |
748a9306 | 696 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
697 | return FALSE; |
698 | } | |
699 | ||
8903cb82 | 700 | long |
701 | do_sysseek(gv, pos, whence) | |
702 | GV *gv; | |
703 | long pos; | |
704 | int whence; | |
705 | { | |
706 | register IO *io; | |
707 | register PerlIO *fp; | |
708 | ||
709 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) | |
710 | return lseek(PerlIO_fileno(fp), pos, whence); | |
711 | if (dowarn) | |
712 | warn("sysseek() on unopened file"); | |
713 | SETERRNO(EBADF,RMS$_IFI); | |
714 | return -1L; | |
715 | } | |
716 | ||
a0d0e21e | 717 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 718 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 719 | #define HAS_CHSIZE |
6eb13c3b | 720 | |
517844ec | 721 | I32 my_chsize(fd, length) |
79072805 | 722 | I32 fd; /* file descriptor */ |
85e6fe83 | 723 | Off_t length; /* length to set file to */ |
6eb13c3b LW |
724 | { |
725 | extern long lseek(); | |
726 | struct flock fl; | |
727 | struct stat filebuf; | |
728 | ||
a0d0e21e | 729 | if (Fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
730 | return -1; |
731 | ||
732 | if (filebuf.st_size < length) { | |
733 | ||
734 | /* extend file length */ | |
735 | ||
736 | if ((lseek(fd, (length - 1), 0)) < 0) | |
737 | return -1; | |
738 | ||
739 | /* write a "0" byte */ | |
740 | ||
741 | if ((write(fd, "", 1)) != 1) | |
742 | return -1; | |
743 | } | |
744 | else { | |
745 | /* truncate length */ | |
746 | ||
747 | fl.l_whence = 0; | |
748 | fl.l_len = 0; | |
749 | fl.l_start = length; | |
a0d0e21e | 750 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
751 | |
752 | /* | |
a0d0e21e | 753 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
754 | * fcntl(2), which truncates the file so that it ends at the |
755 | * position indicated by fl.l_start. | |
756 | * | |
757 | * Will minor miracles never cease? | |
758 | */ | |
759 | ||
a0d0e21e | 760 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
761 | return -1; |
762 | ||
763 | } | |
764 | ||
765 | return 0; | |
766 | } | |
a0d0e21e | 767 | #endif /* F_FREESP */ |
ff8e2863 | 768 | |
a687059c | 769 | bool |
79072805 LW |
770 | do_print(sv,fp) |
771 | register SV *sv; | |
760ac839 | 772 | PerlIO *fp; |
a687059c LW |
773 | { |
774 | register char *tmps; | |
463ee0b2 | 775 | STRLEN len; |
a687059c | 776 | |
79072805 LW |
777 | /* assuming fp is checked earlier */ |
778 | if (!sv) | |
779 | return TRUE; | |
780 | if (ofmt) { | |
8990e307 | 781 | if (SvGMAGICAL(sv)) |
79072805 | 782 | mg_get(sv); |
463ee0b2 | 783 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
760ac839 LW |
784 | PerlIO_printf(fp, ofmt, (double)SvIVX(sv)); |
785 | return !PerlIO_error(fp); | |
79072805 | 786 | } |
463ee0b2 | 787 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 788 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
760ac839 LW |
789 | PerlIO_printf(fp, ofmt, SvNVX(sv)); |
790 | return !PerlIO_error(fp); | |
79072805 | 791 | } |
a687059c | 792 | } |
79072805 LW |
793 | switch (SvTYPE(sv)) { |
794 | case SVt_NULL: | |
8990e307 LW |
795 | if (dowarn) |
796 | warn(warn_uninit); | |
ff8e2863 | 797 | return TRUE; |
79072805 | 798 | case SVt_IV: |
a0d0e21e LW |
799 | if (SvIOK(sv)) { |
800 | if (SvGMAGICAL(sv)) | |
801 | mg_get(sv); | |
760ac839 LW |
802 | PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); |
803 | return !PerlIO_error(fp); | |
a0d0e21e LW |
804 | } |
805 | /* FALL THROUGH */ | |
79072805 | 806 | default: |
463ee0b2 | 807 | tmps = SvPV(sv, len); |
79072805 | 808 | break; |
ff8e2863 | 809 | } |
760ac839 | 810 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c | 811 | return FALSE; |
760ac839 | 812 | return !PerlIO_error(fp); |
a687059c LW |
813 | } |
814 | ||
79072805 LW |
815 | I32 |
816 | my_stat(ARGS) | |
817 | dARGS | |
a687059c | 818 | { |
79072805 LW |
819 | dSP; |
820 | IO *io; | |
748a9306 | 821 | GV* tmpgv; |
79072805 | 822 | |
a0d0e21e | 823 | if (op->op_flags & OPf_REF) { |
79072805 | 824 | EXTEND(sp,1); |
748a9306 LW |
825 | tmpgv = cGVOP->op_gv; |
826 | do_fstat: | |
827 | io = GvIO(tmpgv); | |
8990e307 | 828 | if (io && IoIFP(io)) { |
748a9306 | 829 | statgv = tmpgv; |
79072805 LW |
830 | sv_setpv(statname,""); |
831 | laststype = OP_STAT; | |
760ac839 | 832 | return (laststatval = Fstat(PerlIO_fileno(IoIFP(io)), &statcache)); |
a687059c LW |
833 | } |
834 | else { | |
748a9306 | 835 | if (tmpgv == defgv) |
57ebbfd0 | 836 | return laststatval; |
a687059c LW |
837 | if (dowarn) |
838 | warn("Stat on unopened file <%s>", | |
748a9306 | 839 | GvENAME(tmpgv)); |
79072805 LW |
840 | statgv = Nullgv; |
841 | sv_setpv(statname,""); | |
57ebbfd0 | 842 | return (laststatval = -1); |
a687059c LW |
843 | } |
844 | } | |
845 | else { | |
748a9306 | 846 | SV* sv = POPs; |
79072805 | 847 | PUTBACK; |
748a9306 LW |
848 | if (SvTYPE(sv) == SVt_PVGV) { |
849 | tmpgv = (GV*)sv; | |
850 | goto do_fstat; | |
851 | } | |
852 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
853 | tmpgv = (GV*)SvRV(sv); | |
854 | goto do_fstat; | |
855 | } | |
856 | ||
79072805 | 857 | statgv = Nullgv; |
463ee0b2 | 858 | sv_setpv(statname,SvPV(sv, na)); |
79072805 | 859 | laststype = OP_STAT; |
a0d0e21e | 860 | laststatval = Stat(SvPV(sv, na),&statcache); |
463ee0b2 | 861 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
862 | warn(warn_nl, "stat"); |
863 | return laststatval; | |
a687059c LW |
864 | } |
865 | } | |
866 | ||
79072805 LW |
867 | I32 |
868 | my_lstat(ARGS) | |
869 | dARGS | |
c623bd54 | 870 | { |
79072805 LW |
871 | dSP; |
872 | SV *sv; | |
a0d0e21e | 873 | if (op->op_flags & OPf_REF) { |
79072805 LW |
874 | EXTEND(sp,1); |
875 | if (cGVOP->op_gv == defgv) { | |
876 | if (laststype != OP_LSTAT) | |
463ee0b2 | 877 | croak("The stat preceding -l _ wasn't an lstat"); |
fe14fcc3 LW |
878 | return laststatval; |
879 | } | |
463ee0b2 | 880 | croak("You can't use -l on a filehandle"); |
fe14fcc3 | 881 | } |
c623bd54 | 882 | |
79072805 LW |
883 | laststype = OP_LSTAT; |
884 | statgv = Nullgv; | |
885 | sv = POPs; | |
886 | PUTBACK; | |
463ee0b2 | 887 | sv_setpv(statname,SvPV(sv, na)); |
fe14fcc3 | 888 | #ifdef HAS_LSTAT |
463ee0b2 | 889 | laststatval = lstat(SvPV(sv, na),&statcache); |
c623bd54 | 890 | #else |
a0d0e21e | 891 | laststatval = Stat(SvPV(sv, na),&statcache); |
c623bd54 | 892 | #endif |
463ee0b2 | 893 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
894 | warn(warn_nl, "lstat"); |
895 | return laststatval; | |
c623bd54 LW |
896 | } |
897 | ||
a687059c | 898 | bool |
79072805 LW |
899 | do_aexec(really,mark,sp) |
900 | SV *really; | |
901 | register SV **mark; | |
902 | register SV **sp; | |
a687059c | 903 | { |
a687059c | 904 | register char **a; |
a687059c LW |
905 | char *tmps; |
906 | ||
79072805 LW |
907 | if (sp > mark) { |
908 | New(401,Argv, sp - mark + 1, char*); | |
bee1dbe2 | 909 | a = Argv; |
79072805 LW |
910 | while (++mark <= sp) { |
911 | if (*mark) | |
463ee0b2 | 912 | *a++ = SvPVx(*mark, na); |
a687059c LW |
913 | else |
914 | *a++ = ""; | |
915 | } | |
916 | *a = Nullch; | |
bee1dbe2 | 917 | if (*Argv[0] != '/') /* will execvp use PATH? */ |
79072805 | 918 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
463ee0b2 | 919 | if (really && *(tmps = SvPV(really, na))) |
bee1dbe2 | 920 | execvp(tmps,Argv); |
a687059c | 921 | else |
bee1dbe2 | 922 | execvp(Argv[0],Argv); |
a0d0e21e LW |
923 | if (dowarn) |
924 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 925 | } |
bee1dbe2 | 926 | do_execfree(); |
a687059c LW |
927 | return FALSE; |
928 | } | |
929 | ||
fe14fcc3 | 930 | void |
ff8e2863 LW |
931 | do_execfree() |
932 | { | |
933 | if (Argv) { | |
934 | Safefree(Argv); | |
935 | Argv = Null(char **); | |
936 | } | |
937 | if (Cmd) { | |
938 | Safefree(Cmd); | |
939 | Cmd = Nullch; | |
940 | } | |
941 | } | |
942 | ||
760ac839 LW |
943 | #ifndef OS2 |
944 | ||
a687059c LW |
945 | bool |
946 | do_exec(cmd) | |
947 | char *cmd; | |
948 | { | |
949 | register char **a; | |
950 | register char *s; | |
a687059c LW |
951 | char flags[10]; |
952 | ||
748a9306 LW |
953 | while (*cmd && isSPACE(*cmd)) |
954 | cmd++; | |
955 | ||
a687059c LW |
956 | /* save an extra exec if possible */ |
957 | ||
bf38876a LW |
958 | #ifdef CSH |
959 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { | |
a687059c | 960 | strcpy(flags,"-c"); |
bf38876a | 961 | s = cmd+cshlen+3; |
a687059c LW |
962 | if (*s == 'f') { |
963 | s++; | |
964 | strcat(flags,"f"); | |
965 | } | |
966 | if (*s == ' ') | |
967 | s++; | |
968 | if (*s++ == '\'') { | |
969 | char *ncmd = s; | |
970 | ||
971 | while (*s) | |
972 | s++; | |
973 | if (s[-1] == '\n') | |
974 | *--s = '\0'; | |
975 | if (s[-1] == '\'') { | |
976 | *--s = '\0'; | |
bf38876a | 977 | execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
978 | *s = '\''; |
979 | return FALSE; | |
980 | } | |
981 | } | |
982 | } | |
bf38876a | 983 | #endif /* CSH */ |
a687059c LW |
984 | |
985 | /* see if there are shell metacharacters in it */ | |
986 | ||
748a9306 LW |
987 | if (*cmd == '.' && isSPACE(cmd[1])) |
988 | goto doshell; | |
989 | ||
990 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
991 | goto doshell; | |
992 | ||
99b89507 | 993 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
994 | if (*s == '=') |
995 | goto doshell; | |
748a9306 | 996 | |
a687059c | 997 | for (s = cmd; *s; s++) { |
93a17b20 | 998 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
999 | if (*s == '\n' && !s[1]) { |
1000 | *s = '\0'; | |
1001 | break; | |
1002 | } | |
1003 | doshell: | |
ff68c719 | 1004 | execl(sh_path, "sh", "-c", cmd, (char*)0); |
a687059c LW |
1005 | return FALSE; |
1006 | } | |
1007 | } | |
748a9306 | 1008 | |
ff8e2863 | 1009 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
a0d0e21e | 1010 | Cmd = savepvn(cmd, s-cmd); |
ff8e2863 LW |
1011 | a = Argv; |
1012 | for (s = Cmd; *s;) { | |
99b89507 | 1013 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1014 | if (*s) |
1015 | *(a++) = s; | |
99b89507 | 1016 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1017 | if (*s) |
1018 | *s++ = '\0'; | |
1019 | } | |
1020 | *a = Nullch; | |
ff8e2863 LW |
1021 | if (Argv[0]) { |
1022 | execvp(Argv[0],Argv); | |
b1248f16 | 1023 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1024 | do_execfree(); |
a687059c | 1025 | goto doshell; |
b1248f16 | 1026 | } |
a0d0e21e LW |
1027 | if (dowarn) |
1028 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 1029 | } |
ff8e2863 | 1030 | do_execfree(); |
a687059c LW |
1031 | return FALSE; |
1032 | } | |
1033 | ||
55497cff | 1034 | #endif /* OS2 */ |
760ac839 | 1035 | |
79072805 LW |
1036 | I32 |
1037 | apply(type,mark,sp) | |
1038 | I32 type; | |
1039 | register SV **mark; | |
1040 | register SV **sp; | |
a687059c | 1041 | { |
79072805 LW |
1042 | register I32 val; |
1043 | register I32 val2; | |
1044 | register I32 tot = 0; | |
a687059c | 1045 | char *s; |
79072805 | 1046 | SV **oldmark = mark; |
a687059c | 1047 | |
463ee0b2 LW |
1048 | if (tainting) { |
1049 | while (++mark <= sp) { | |
bbce6d69 | 1050 | if (SvTAINTED(*mark)) { |
1051 | TAINT; | |
1052 | break; | |
1053 | } | |
463ee0b2 LW |
1054 | } |
1055 | mark = oldmark; | |
1056 | } | |
a687059c | 1057 | switch (type) { |
79072805 LW |
1058 | case OP_CHMOD: |
1059 | TAINT_PROPER("chmod"); | |
1060 | if (++mark <= sp) { | |
1061 | tot = sp - mark; | |
463ee0b2 | 1062 | val = SvIVx(*mark); |
79072805 | 1063 | while (++mark <= sp) { |
463ee0b2 | 1064 | if (chmod(SvPVx(*mark, na),val)) |
a687059c LW |
1065 | tot--; |
1066 | } | |
1067 | } | |
1068 | break; | |
fe14fcc3 | 1069 | #ifdef HAS_CHOWN |
79072805 LW |
1070 | case OP_CHOWN: |
1071 | TAINT_PROPER("chown"); | |
1072 | if (sp - mark > 2) { | |
463ee0b2 LW |
1073 | val = SvIVx(*++mark); |
1074 | val2 = SvIVx(*++mark); | |
a0d0e21e | 1075 | tot = sp - mark; |
79072805 | 1076 | while (++mark <= sp) { |
463ee0b2 | 1077 | if (chown(SvPVx(*mark, na),val,val2)) |
a687059c LW |
1078 | tot--; |
1079 | } | |
1080 | } | |
1081 | break; | |
b1248f16 | 1082 | #endif |
fe14fcc3 | 1083 | #ifdef HAS_KILL |
79072805 LW |
1084 | case OP_KILL: |
1085 | TAINT_PROPER("kill"); | |
55497cff | 1086 | if (mark == sp) |
1087 | break; | |
463ee0b2 | 1088 | s = SvPVx(*++mark, na); |
79072805 LW |
1089 | tot = sp - mark; |
1090 | if (isUPPER(*s)) { | |
1091 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') | |
1092 | s += 3; | |
1093 | if (!(val = whichsig(s))) | |
463ee0b2 | 1094 | croak("Unrecognized signal name \"%s\"",s); |
79072805 LW |
1095 | } |
1096 | else | |
463ee0b2 | 1097 | val = SvIVx(*mark); |
3595fcef | 1098 | #ifdef VMS |
1099 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
1100 | if (val < 0) val = -val; | |
1101 | if (val == SIGKILL) { | |
1102 | # include <starlet.h> | |
1103 | /* Use native sys$delprc() to insure that target process is | |
1104 | * deleted; supervisor-mode images don't pay attention to | |
1105 | * CRTL's emulation of Unix-style signals and kill() | |
1106 | */ | |
1107 | while (++mark <= sp) { | |
1108 | I32 proc = SvIVx(*mark); | |
1109 | register unsigned long int __vmssts; | |
1110 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { | |
1111 | tot--; | |
1112 | switch (__vmssts) { | |
1113 | case SS$_NONEXPR: | |
1114 | case SS$_NOSUCHNODE: | |
1115 | SETERRNO(ESRCH,__vmssts); | |
1116 | break; | |
1117 | case SS$_NOPRIV: | |
1118 | SETERRNO(EPERM,__vmssts); | |
1119 | break; | |
1120 | default: | |
1121 | SETERRNO(EVMSERR,__vmssts); | |
1122 | } | |
1123 | } | |
1124 | } | |
1125 | break; | |
1126 | } | |
1127 | #endif | |
79072805 LW |
1128 | if (val < 0) { |
1129 | val = -val; | |
1130 | while (++mark <= sp) { | |
463ee0b2 | 1131 | I32 proc = SvIVx(*mark); |
fe14fcc3 | 1132 | #ifdef HAS_KILLPG |
79072805 | 1133 | if (killpg(proc,val)) /* BSD */ |
a687059c | 1134 | #else |
79072805 | 1135 | if (kill(-proc,val)) /* SYSV */ |
a687059c | 1136 | #endif |
79072805 | 1137 | tot--; |
a687059c | 1138 | } |
79072805 LW |
1139 | } |
1140 | else { | |
1141 | while (++mark <= sp) { | |
463ee0b2 | 1142 | if (kill(SvIVx(*mark),val)) |
79072805 | 1143 | tot--; |
a687059c LW |
1144 | } |
1145 | } | |
1146 | break; | |
b1248f16 | 1147 | #endif |
79072805 LW |
1148 | case OP_UNLINK: |
1149 | TAINT_PROPER("unlink"); | |
1150 | tot = sp - mark; | |
1151 | while (++mark <= sp) { | |
463ee0b2 | 1152 | s = SvPVx(*mark, na); |
a687059c LW |
1153 | if (euid || unsafe) { |
1154 | if (UNLINK(s)) | |
1155 | tot--; | |
1156 | } | |
1157 | else { /* don't let root wipe out directories without -U */ | |
fe14fcc3 | 1158 | #ifdef HAS_LSTAT |
c623bd54 | 1159 | if (lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1160 | #else |
a0d0e21e | 1161 | if (Stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1162 | #endif |
a687059c LW |
1163 | tot--; |
1164 | else { | |
1165 | if (UNLINK(s)) | |
1166 | tot--; | |
1167 | } | |
1168 | } | |
1169 | } | |
1170 | break; | |
a0d0e21e | 1171 | #ifdef HAS_UTIME |
79072805 LW |
1172 | case OP_UTIME: |
1173 | TAINT_PROPER("utime"); | |
1174 | if (sp - mark > 2) { | |
748a9306 | 1175 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1176 | struct utimbuf utbuf; |
1177 | #else | |
a687059c | 1178 | struct { |
663a0e37 LW |
1179 | long actime; |
1180 | long modtime; | |
a687059c | 1181 | } utbuf; |
663a0e37 | 1182 | #endif |
a687059c | 1183 | |
afd9f252 | 1184 | Zero(&utbuf, sizeof utbuf, char); |
517844ec | 1185 | #ifdef BIG_TIME |
1186 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ | |
1187 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ | |
1188 | #else | |
463ee0b2 LW |
1189 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1190 | utbuf.modtime = SvIVx(*++mark); /* time modified */ | |
517844ec | 1191 | #endif |
79072805 LW |
1192 | tot = sp - mark; |
1193 | while (++mark <= sp) { | |
463ee0b2 | 1194 | if (utime(SvPVx(*mark, na),&utbuf)) |
a687059c LW |
1195 | tot--; |
1196 | } | |
a687059c LW |
1197 | } |
1198 | else | |
79072805 | 1199 | tot = 0; |
a687059c | 1200 | break; |
a0d0e21e | 1201 | #endif |
a687059c LW |
1202 | } |
1203 | return tot; | |
1204 | } | |
1205 | ||
1206 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1207 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 | 1208 | I32 |
a687059c | 1209 | cando(bit, effective, statbufp) |
79072805 LW |
1210 | I32 bit; |
1211 | I32 effective; | |
a687059c LW |
1212 | register struct stat *statbufp; |
1213 | { | |
bee1dbe2 | 1214 | #ifdef DOSISH |
fe14fcc3 LW |
1215 | /* [Comments and code from Len Reed] |
1216 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1217 | * to write-protected files. The execute permission bit is set | |
1218 | * by the Miscrosoft C library stat() function for the following: | |
1219 | * .exe files | |
1220 | * .com files | |
1221 | * .bat files | |
1222 | * directories | |
1223 | * All files and directories are readable. | |
1224 | * Directories and special files, e.g. "CON", cannot be | |
1225 | * write-protected. | |
1226 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1227 | * bit set in the file system, but DOS permits changes to | |
1228 | * the directory anyway. In addition, all bets are off | |
1229 | * here for networked software, such as Novell and | |
1230 | * Sun's PC-NFS.] | |
1231 | */ | |
1232 | ||
bee1dbe2 LW |
1233 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1234 | * too so it will actually look into the files for magic numbers | |
1235 | */ | |
fe14fcc3 LW |
1236 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1237 | ||
55497cff | 1238 | #else /* ! DOSISH */ |
a687059c | 1239 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 LW |
1240 | if (bit == S_IXUSR) { |
1241 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) | |
a687059c LW |
1242 | return TRUE; |
1243 | } | |
1244 | else | |
1245 | return TRUE; /* root reads and writes anything */ | |
1246 | return FALSE; | |
1247 | } | |
1248 | if (statbufp->st_uid == (effective ? euid : uid) ) { | |
1249 | if (statbufp->st_mode & bit) | |
1250 | return TRUE; /* ok as "user" */ | |
1251 | } | |
79072805 | 1252 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c LW |
1253 | if (statbufp->st_mode & bit >> 3) |
1254 | return TRUE; /* ok as "group" */ | |
1255 | } | |
1256 | else if (statbufp->st_mode & bit >> 6) | |
1257 | return TRUE; /* ok as "other" */ | |
1258 | return FALSE; | |
55497cff | 1259 | #endif /* ! DOSISH */ |
a687059c | 1260 | } |
a0d0e21e | 1261 | #endif /* ! VMS */ |
a687059c | 1262 | |
79072805 | 1263 | I32 |
a687059c | 1264 | ingroup(testgid,effective) |
79072805 LW |
1265 | I32 testgid; |
1266 | I32 effective; | |
a687059c LW |
1267 | { |
1268 | if (testgid == (effective ? egid : gid)) | |
1269 | return TRUE; | |
fe14fcc3 | 1270 | #ifdef HAS_GETGROUPS |
a687059c LW |
1271 | #ifndef NGROUPS |
1272 | #define NGROUPS 32 | |
1273 | #endif | |
1274 | { | |
a0d0e21e | 1275 | Groups_t gary[NGROUPS]; |
79072805 | 1276 | I32 anum; |
a687059c LW |
1277 | |
1278 | anum = getgroups(NGROUPS,gary); | |
1279 | while (--anum >= 0) | |
1280 | if (gary[anum] == testgid) | |
1281 | return TRUE; | |
1282 | } | |
1283 | #endif | |
1284 | return FALSE; | |
1285 | } | |
c2ab57d4 | 1286 | |
fe14fcc3 | 1287 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1288 | |
79072805 LW |
1289 | I32 |
1290 | do_ipcget(optype, mark, sp) | |
1291 | I32 optype; | |
1292 | SV **mark; | |
1293 | SV **sp; | |
c2ab57d4 | 1294 | { |
c2ab57d4 | 1295 | key_t key; |
79072805 | 1296 | I32 n, flags; |
c2ab57d4 | 1297 | |
463ee0b2 LW |
1298 | key = (key_t)SvNVx(*++mark); |
1299 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1300 | flags = SvIVx(*++mark); | |
748a9306 | 1301 | SETERRNO(0,0); |
c2ab57d4 LW |
1302 | switch (optype) |
1303 | { | |
fe14fcc3 | 1304 | #ifdef HAS_MSG |
79072805 | 1305 | case OP_MSGGET: |
c2ab57d4 | 1306 | return msgget(key, flags); |
e5d73d77 | 1307 | #endif |
fe14fcc3 | 1308 | #ifdef HAS_SEM |
79072805 | 1309 | case OP_SEMGET: |
c2ab57d4 | 1310 | return semget(key, n, flags); |
e5d73d77 | 1311 | #endif |
fe14fcc3 | 1312 | #ifdef HAS_SHM |
79072805 | 1313 | case OP_SHMGET: |
c2ab57d4 | 1314 | return shmget(key, n, flags); |
e5d73d77 | 1315 | #endif |
fe14fcc3 | 1316 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1317 | default: |
c07a80fd | 1318 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 | 1319 | #endif |
c2ab57d4 LW |
1320 | } |
1321 | return -1; /* should never happen */ | |
1322 | } | |
1323 | ||
79072805 LW |
1324 | I32 |
1325 | do_ipcctl(optype, mark, sp) | |
1326 | I32 optype; | |
1327 | SV **mark; | |
1328 | SV **sp; | |
c2ab57d4 | 1329 | { |
79072805 | 1330 | SV *astr; |
c2ab57d4 | 1331 | char *a; |
a0d0e21e LW |
1332 | I32 id, n, cmd, infosize, getinfo; |
1333 | I32 ret = -1; | |
c2ab57d4 | 1334 | |
463ee0b2 LW |
1335 | id = SvIVx(*++mark); |
1336 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1337 | cmd = SvIVx(*++mark); | |
79072805 | 1338 | astr = *++mark; |
c2ab57d4 LW |
1339 | infosize = 0; |
1340 | getinfo = (cmd == IPC_STAT); | |
1341 | ||
1342 | switch (optype) | |
1343 | { | |
fe14fcc3 | 1344 | #ifdef HAS_MSG |
79072805 | 1345 | case OP_MSGCTL: |
c2ab57d4 LW |
1346 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1347 | infosize = sizeof(struct msqid_ds); | |
1348 | break; | |
e5d73d77 | 1349 | #endif |
fe14fcc3 | 1350 | #ifdef HAS_SHM |
79072805 | 1351 | case OP_SHMCTL: |
c2ab57d4 LW |
1352 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1353 | infosize = sizeof(struct shmid_ds); | |
1354 | break; | |
e5d73d77 | 1355 | #endif |
fe14fcc3 | 1356 | #ifdef HAS_SEM |
79072805 | 1357 | case OP_SEMCTL: |
c2ab57d4 LW |
1358 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1359 | infosize = sizeof(struct semid_ds); | |
1360 | else if (cmd == GETALL || cmd == SETALL) | |
1361 | { | |
1362 | struct semid_ds semds; | |
1363 | if (semctl(id, 0, IPC_STAT, &semds) == -1) | |
1364 | return -1; | |
1365 | getinfo = (cmd == GETALL); | |
6e21c824 LW |
1366 | infosize = semds.sem_nsems * sizeof(short); |
1367 | /* "short" is technically wrong but much more portable | |
1368 | than guessing about u_?short(_t)? */ | |
c2ab57d4 LW |
1369 | } |
1370 | break; | |
e5d73d77 | 1371 | #endif |
fe14fcc3 | 1372 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1373 | default: |
c07a80fd | 1374 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 | 1375 | #endif |
c2ab57d4 LW |
1376 | } |
1377 | ||
1378 | if (infosize) | |
1379 | { | |
a0d0e21e | 1380 | STRLEN len; |
c2ab57d4 LW |
1381 | if (getinfo) |
1382 | { | |
a0d0e21e LW |
1383 | SvPV_force(astr, len); |
1384 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
1385 | } |
1386 | else | |
1387 | { | |
463ee0b2 LW |
1388 | a = SvPV(astr, len); |
1389 | if (len != infosize) | |
9607fc9c | 1390 | croak("Bad arg length for %s, is %lu, should be %ld", |
1391 | op_desc[optype], (unsigned long)len, (long)infosize); | |
c2ab57d4 LW |
1392 | } |
1393 | } | |
1394 | else | |
1395 | { | |
c030ccd9 | 1396 | IV i = SvIV(astr); |
c2ab57d4 LW |
1397 | a = (char *)i; /* ouch */ |
1398 | } | |
748a9306 | 1399 | SETERRNO(0,0); |
c2ab57d4 LW |
1400 | switch (optype) |
1401 | { | |
fe14fcc3 | 1402 | #ifdef HAS_MSG |
79072805 | 1403 | case OP_MSGCTL: |
bee1dbe2 | 1404 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 1405 | break; |
e5d73d77 | 1406 | #endif |
fe14fcc3 | 1407 | #ifdef HAS_SEM |
79072805 LW |
1408 | case OP_SEMCTL: |
1409 | ret = semctl(id, n, cmd, (struct semid_ds *)a); | |
c2ab57d4 | 1410 | break; |
e5d73d77 | 1411 | #endif |
fe14fcc3 | 1412 | #ifdef HAS_SHM |
79072805 | 1413 | case OP_SHMCTL: |
bee1dbe2 | 1414 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 1415 | break; |
e5d73d77 | 1416 | #endif |
c2ab57d4 LW |
1417 | } |
1418 | if (getinfo && ret >= 0) { | |
79072805 LW |
1419 | SvCUR_set(astr, infosize); |
1420 | *SvEND(astr) = '\0'; | |
a0d0e21e | 1421 | SvSETMAGIC(astr); |
c2ab57d4 LW |
1422 | } |
1423 | return ret; | |
1424 | } | |
1425 | ||
79072805 LW |
1426 | I32 |
1427 | do_msgsnd(mark, sp) | |
1428 | SV **mark; | |
1429 | SV **sp; | |
c2ab57d4 | 1430 | { |
fe14fcc3 | 1431 | #ifdef HAS_MSG |
79072805 | 1432 | SV *mstr; |
c2ab57d4 | 1433 | char *mbuf; |
79072805 | 1434 | I32 id, msize, flags; |
463ee0b2 | 1435 | STRLEN len; |
c2ab57d4 | 1436 | |
463ee0b2 | 1437 | id = SvIVx(*++mark); |
79072805 | 1438 | mstr = *++mark; |
463ee0b2 LW |
1439 | flags = SvIVx(*++mark); |
1440 | mbuf = SvPV(mstr, len); | |
1441 | if ((msize = len - sizeof(long)) < 0) | |
1442 | croak("Arg too short for msgsnd"); | |
748a9306 | 1443 | SETERRNO(0,0); |
bee1dbe2 | 1444 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 1445 | #else |
463ee0b2 | 1446 | croak("msgsnd not implemented"); |
e5d73d77 | 1447 | #endif |
c2ab57d4 LW |
1448 | } |
1449 | ||
79072805 LW |
1450 | I32 |
1451 | do_msgrcv(mark, sp) | |
1452 | SV **mark; | |
1453 | SV **sp; | |
c2ab57d4 | 1454 | { |
fe14fcc3 | 1455 | #ifdef HAS_MSG |
79072805 | 1456 | SV *mstr; |
c2ab57d4 LW |
1457 | char *mbuf; |
1458 | long mtype; | |
79072805 | 1459 | I32 id, msize, flags, ret; |
463ee0b2 | 1460 | STRLEN len; |
79072805 | 1461 | |
463ee0b2 | 1462 | id = SvIVx(*++mark); |
79072805 | 1463 | mstr = *++mark; |
463ee0b2 LW |
1464 | msize = SvIVx(*++mark); |
1465 | mtype = (long)SvIVx(*++mark); | |
1466 | flags = SvIVx(*++mark); | |
ed6116ce LW |
1467 | if (SvTHINKFIRST(mstr)) { |
1468 | if (SvREADONLY(mstr)) | |
1469 | croak("Can't msgrcv to readonly var"); | |
1470 | if (SvROK(mstr)) | |
1471 | sv_unref(mstr); | |
1472 | } | |
a0d0e21e LW |
1473 | SvPV_force(mstr, len); |
1474 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
1475 | ||
748a9306 | 1476 | SETERRNO(0,0); |
bee1dbe2 | 1477 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 1478 | if (ret >= 0) { |
79072805 LW |
1479 | SvCUR_set(mstr, sizeof(long)+ret); |
1480 | *SvEND(mstr) = '\0'; | |
c2ab57d4 LW |
1481 | } |
1482 | return ret; | |
e5d73d77 | 1483 | #else |
463ee0b2 | 1484 | croak("msgrcv not implemented"); |
e5d73d77 | 1485 | #endif |
c2ab57d4 LW |
1486 | } |
1487 | ||
79072805 LW |
1488 | I32 |
1489 | do_semop(mark, sp) | |
1490 | SV **mark; | |
1491 | SV **sp; | |
c2ab57d4 | 1492 | { |
fe14fcc3 | 1493 | #ifdef HAS_SEM |
79072805 | 1494 | SV *opstr; |
c2ab57d4 | 1495 | char *opbuf; |
463ee0b2 LW |
1496 | I32 id; |
1497 | STRLEN opsize; | |
c2ab57d4 | 1498 | |
463ee0b2 | 1499 | id = SvIVx(*++mark); |
79072805 | 1500 | opstr = *++mark; |
463ee0b2 | 1501 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 LW |
1502 | if (opsize < sizeof(struct sembuf) |
1503 | || (opsize % sizeof(struct sembuf)) != 0) { | |
748a9306 | 1504 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 LW |
1505 | return -1; |
1506 | } | |
748a9306 | 1507 | SETERRNO(0,0); |
6e21c824 | 1508 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 | 1509 | #else |
463ee0b2 | 1510 | croak("semop not implemented"); |
e5d73d77 | 1511 | #endif |
c2ab57d4 LW |
1512 | } |
1513 | ||
79072805 LW |
1514 | I32 |
1515 | do_shmio(optype, mark, sp) | |
1516 | I32 optype; | |
1517 | SV **mark; | |
1518 | SV **sp; | |
c2ab57d4 | 1519 | { |
fe14fcc3 | 1520 | #ifdef HAS_SHM |
79072805 | 1521 | SV *mstr; |
c2ab57d4 | 1522 | char *mbuf, *shm; |
79072805 | 1523 | I32 id, mpos, msize; |
463ee0b2 | 1524 | STRLEN len; |
c2ab57d4 | 1525 | struct shmid_ds shmds; |
c2ab57d4 | 1526 | |
463ee0b2 | 1527 | id = SvIVx(*++mark); |
79072805 | 1528 | mstr = *++mark; |
463ee0b2 LW |
1529 | mpos = SvIVx(*++mark); |
1530 | msize = SvIVx(*++mark); | |
748a9306 | 1531 | SETERRNO(0,0); |
c2ab57d4 LW |
1532 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1533 | return -1; | |
1534 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
748a9306 | 1535 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
1536 | return -1; |
1537 | } | |
a0d0e21e | 1538 | shm = (Shmat_t)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
1539 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1540 | return -1; | |
79072805 | 1541 | if (optype == OP_SHMREAD) { |
a0d0e21e LW |
1542 | SvPV_force(mstr, len); |
1543 | mbuf = SvGROW(mstr, msize+1); | |
1544 | ||
bee1dbe2 | 1545 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
1546 | SvCUR_set(mstr, msize); |
1547 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 1548 | SvSETMAGIC(mstr); |
c2ab57d4 LW |
1549 | } |
1550 | else { | |
79072805 | 1551 | I32 n; |
c2ab57d4 | 1552 | |
a0d0e21e | 1553 | mbuf = SvPV(mstr, len); |
463ee0b2 | 1554 | if ((n = len) > msize) |
c2ab57d4 | 1555 | n = msize; |
bee1dbe2 | 1556 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 1557 | if (n < msize) |
bee1dbe2 | 1558 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
1559 | } |
1560 | return shmdt(shm); | |
e5d73d77 | 1561 | #else |
463ee0b2 | 1562 | croak("shm I/O not implemented"); |
e5d73d77 | 1563 | #endif |
c2ab57d4 LW |
1564 | } |
1565 | ||
fe14fcc3 | 1566 | #endif /* SYSV IPC */ |