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; | |
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 | 108 | else if (IoTYPE(io) == '|') |
3028581b | 109 | result = PerlProc_pclose(IoIFP(io)); |
8990e307 LW |
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); | |
3028581b | 130 | fd = PerlLIO_open3(name, rawmode, rawperm); |
c07a80fd | 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) |
3028581b | 145 | PerlLIO_close(fd); |
c07a80fd | 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"); | |
3028581b | 175 | fp = PerlProc_popen(name,"w"); |
c07a80fd | 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) |
3028581b | 223 | fd = PerlLIO_dup(fd); |
760ac839 | 224 | if (!(fp = PerlIO_fdopen(fd,mode))) { |
c07a80fd | 225 | if (dodup) |
3028581b | 226 | PerlLIO_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"); | |
3028581b | 264 | fp = PerlProc_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) != '-') { | |
96827780 | 286 | dTHR; |
3028581b | 287 | if (PerlLIO_fstat(PerlIO_fileno(fp),&statbuf) < 0) { |
760ac839 | 288 | (void)PerlIO_close(fp); |
6e21c824 | 289 | goto say_false; |
a687059c | 290 | } |
1462b684 | 291 | if (S_ISSOCK(statbuf.st_mode)) |
8990e307 | 292 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 LW |
293 | #ifdef HAS_SOCKET |
294 | else if ( | |
c623bd54 | 295 | #ifdef S_IFMT |
99b89507 LW |
296 | !(statbuf.st_mode & S_IFMT) |
297 | #else | |
298 | !statbuf.st_mode | |
299 | #endif | |
300 | ) { | |
96827780 MB |
301 | char tmpbuf[256]; |
302 | Sock_size_t buflen = sizeof tmpbuf; | |
3028581b | 303 | if (PerlSock_getsockname(PerlIO_fileno(fp), (struct sockaddr *)tmpbuf, |
d574b85e CS |
304 | &buflen) >= 0 |
305 | || errno != ENOTSOCK) | |
8990e307 | 306 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 LW |
307 | /* but some return 0 for streams too, sigh */ |
308 | } | |
bf38876a | 309 | #endif |
a687059c | 310 | } |
6e21c824 | 311 | if (saveifp) { /* must use old fp? */ |
760ac839 | 312 | fd = PerlIO_fileno(saveifp); |
6e21c824 | 313 | if (saveofp) { |
760ac839 | 314 | PerlIO_flush(saveofp); /* emulate PerlIO_close() */ |
6e21c824 | 315 | if (saveofp != saveifp) { /* was a socket? */ |
760ac839 | 316 | PerlIO_close(saveofp); |
99b89507 LW |
317 | if (fd > 2) |
318 | Safefree(saveofp); | |
6e21c824 LW |
319 | } |
320 | } | |
760ac839 | 321 | if (fd != PerlIO_fileno(fp)) { |
bee1dbe2 | 322 | int pid; |
79072805 | 323 | SV *sv; |
bee1dbe2 | 324 | |
3028581b | 325 | PerlLIO_dup2(PerlIO_fileno(fp), fd); |
760ac839 | 326 | sv = *av_fetch(fdpid,PerlIO_fileno(fp),TRUE); |
a0d0e21e | 327 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 LW |
328 | pid = SvIVX(sv); |
329 | SvIVX(sv) = 0; | |
79072805 | 330 | sv = *av_fetch(fdpid,fd,TRUE); |
a0d0e21e | 331 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 | 332 | SvIVX(sv) = pid; |
760ac839 | 333 | PerlIO_close(fp); |
bee1dbe2 | 334 | |
6e21c824 LW |
335 | } |
336 | fp = saveifp; | |
760ac839 | 337 | PerlIO_clearerr(fp); |
6e21c824 | 338 | } |
a0d0e21e | 339 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
760ac839 | 340 | fd = PerlIO_fileno(fp); |
a0d0e21e | 341 | fcntl(fd,F_SETFD,fd > maxsysfd); |
1462b684 | 342 | #endif |
8990e307 | 343 | IoIFP(io) = fp; |
bf38876a | 344 | if (writing) { |
96827780 | 345 | dTHR; |
8990e307 LW |
346 | if (IoTYPE(io) == 's' |
347 | || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { | |
760ac839 LW |
348 | if (!(IoOFP(io) = PerlIO_fdopen(PerlIO_fileno(fp),"w"))) { |
349 | PerlIO_close(fp); | |
8990e307 | 350 | IoIFP(io) = Nullfp; |
6e21c824 | 351 | goto say_false; |
fe14fcc3 | 352 | } |
1462b684 LW |
353 | } |
354 | else | |
8990e307 | 355 | IoOFP(io) = fp; |
bf38876a | 356 | } |
a687059c | 357 | return TRUE; |
6e21c824 LW |
358 | |
359 | say_false: | |
8990e307 LW |
360 | IoIFP(io) = saveifp; |
361 | IoOFP(io) = saveofp; | |
362 | IoTYPE(io) = savetype; | |
6e21c824 | 363 | return FALSE; |
a687059c LW |
364 | } |
365 | ||
760ac839 | 366 | PerlIO * |
8ac85365 | 367 | nextargv(register GV *gv) |
a687059c | 368 | { |
79072805 | 369 | register SV *sv; |
99b89507 | 370 | #ifndef FLEXFILENAMES |
c623bd54 LW |
371 | int filedev; |
372 | int fileino; | |
99b89507 | 373 | #endif |
c623bd54 LW |
374 | int fileuid; |
375 | int filegid; | |
fe14fcc3 | 376 | |
79072805 | 377 | if (!argvoutgv) |
85e6fe83 | 378 | argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
fe14fcc3 | 379 | if (filemode & (S_ISUID|S_ISGID)) { |
760ac839 | 380 | PerlIO_flush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 LW |
381 | #ifdef HAS_FCHMOD |
382 | (void)fchmod(lastfd,filemode); | |
383 | #else | |
3028581b | 384 | (void)PerlLIO_chmod(oldname,filemode); |
fe14fcc3 LW |
385 | #endif |
386 | } | |
387 | filemode = 0; | |
79072805 | 388 | while (av_len(GvAV(gv)) >= 0) { |
11343788 | 389 | dTHR; |
85aff577 | 390 | STRLEN oldlen; |
79072805 | 391 | sv = av_shift(GvAV(gv)); |
8990e307 | 392 | SAVEFREESV(sv); |
79072805 LW |
393 | sv_setsv(GvSV(gv),sv); |
394 | SvSETMAGIC(GvSV(gv)); | |
85aff577 CS |
395 | oldname = SvPVx(GvSV(gv), oldlen); |
396 | if (do_open(gv,oldname,oldlen,inplace!=0,0,0,Nullfp)) { | |
a687059c | 397 | if (inplace) { |
79072805 | 398 | TAINT_PROPER("inplace open"); |
85aff577 | 399 | if (oldlen == 1 && *oldname == '-') { |
4633a7c4 | 400 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 401 | return IoIFP(GvIOp(gv)); |
c623bd54 | 402 | } |
99b89507 | 403 | #ifndef FLEXFILENAMES |
c623bd54 LW |
404 | filedev = statbuf.st_dev; |
405 | fileino = statbuf.st_ino; | |
99b89507 | 406 | #endif |
a687059c LW |
407 | filemode = statbuf.st_mode; |
408 | fileuid = statbuf.st_uid; | |
409 | filegid = statbuf.st_gid; | |
c623bd54 LW |
410 | if (!S_ISREG(filemode)) { |
411 | warn("Can't do inplace edit: %s is not a regular file", | |
412 | oldname ); | |
79072805 | 413 | do_close(gv,FALSE); |
c623bd54 LW |
414 | continue; |
415 | } | |
a687059c | 416 | if (*inplace) { |
ff8e2863 | 417 | #ifdef SUFFIX |
79072805 | 418 | add_suffix(sv,inplace); |
ff8e2863 | 419 | #else |
79072805 | 420 | sv_catpv(sv,inplace); |
ff8e2863 | 421 | #endif |
c623bd54 | 422 | #ifndef FLEXFILENAMES |
3028581b | 423 | if (PerlLIO_stat(SvPVX(sv),&statbuf) >= 0 |
c623bd54 | 424 | && statbuf.st_dev == filedev |
39e571d4 LM |
425 | && statbuf.st_ino == fileino |
426 | #ifdef DJGPP | |
427 | || (_djstat_fail_bits & _STFAIL_TRUENAME)!=0 | |
428 | #endif | |
429 | ) { | |
430 | warn("Can't do inplace edit: %s would not be uniq", | |
463ee0b2 | 431 | SvPVX(sv) ); |
79072805 | 432 | do_close(gv,FALSE); |
c623bd54 LW |
433 | continue; |
434 | } | |
435 | #endif | |
fe14fcc3 | 436 | #ifdef HAS_RENAME |
bee1dbe2 | 437 | #ifndef DOSISH |
3028581b | 438 | if (PerlLIO_rename(oldname,SvPVX(sv)) < 0) { |
c623bd54 | 439 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 440 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 441 | do_close(gv,FALSE); |
c623bd54 LW |
442 | continue; |
443 | } | |
a687059c | 444 | #else |
79072805 | 445 | do_close(gv,FALSE); |
3028581b GS |
446 | (void)PerlLIO_unlink(SvPVX(sv)); |
447 | (void)PerlLIO_rename(oldname,SvPVX(sv)); | |
85aff577 | 448 | do_open(gv,SvPVX(sv),SvCUR(sv),inplace!=0,0,0,Nullfp); |
55497cff | 449 | #endif /* DOSISH */ |
ff8e2863 | 450 | #else |
463ee0b2 LW |
451 | (void)UNLINK(SvPVX(sv)); |
452 | if (link(oldname,SvPVX(sv)) < 0) { | |
c623bd54 | 453 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 454 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 455 | do_close(gv,FALSE); |
c623bd54 LW |
456 | continue; |
457 | } | |
a687059c LW |
458 | (void)UNLINK(oldname); |
459 | #endif | |
460 | } | |
461 | else { | |
a8c18271 | 462 | #if !defined(DOSISH) && !defined(AMIGAOS) |
edc7bc49 | 463 | # ifndef VMS /* Don't delete; use automatic file versioning */ |
fe14fcc3 | 464 | if (UNLINK(oldname) < 0) { |
85aff577 CS |
465 | warn("Can't remove %s: %s, skipping file", |
466 | oldname, Strerror(errno) ); | |
79072805 | 467 | do_close(gv,FALSE); |
fe14fcc3 LW |
468 | continue; |
469 | } | |
edc7bc49 | 470 | # endif |
ff8e2863 | 471 | #else |
463ee0b2 | 472 | croak("Can't do inplace edit without backup"); |
ff8e2863 | 473 | #endif |
a687059c LW |
474 | } |
475 | ||
85aff577 CS |
476 | sv_setpvn(sv,">",!inplace); |
477 | sv_catpvn(sv,oldname,oldlen); | |
748a9306 | 478 | SETERRNO(0,0); /* in case sprintf set errno */ |
85aff577 CS |
479 | if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),inplace!=0, |
480 | O_WRONLY|O_CREAT|OPEN_EXCL,0666,Nullfp)) { | |
c623bd54 | 481 | warn("Can't do inplace edit on %s: %s", |
2304df62 | 482 | oldname, Strerror(errno) ); |
79072805 | 483 | do_close(gv,FALSE); |
fe14fcc3 LW |
484 | continue; |
485 | } | |
4633a7c4 | 486 | setdefout(argvoutgv); |
760ac839 | 487 | lastfd = PerlIO_fileno(IoIFP(GvIOp(argvoutgv))); |
3028581b | 488 | (void)PerlLIO_fstat(lastfd,&statbuf); |
fe14fcc3 LW |
489 | #ifdef HAS_FCHMOD |
490 | (void)fchmod(lastfd,filemode); | |
a687059c | 491 | #else |
3e3baf6d TB |
492 | # if !(defined(WIN32) && defined(__BORLANDC__)) |
493 | /* Borland runtime creates a readonly file! */ | |
3028581b | 494 | (void)PerlLIO_chmod(oldname,filemode); |
3e3baf6d | 495 | # endif |
a687059c | 496 | #endif |
fe14fcc3 LW |
497 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
498 | #ifdef HAS_FCHOWN | |
499 | (void)fchown(lastfd,fileuid,filegid); | |
a687059c | 500 | #else |
fe14fcc3 LW |
501 | #ifdef HAS_CHOWN |
502 | (void)chown(oldname,fileuid,filegid); | |
a687059c | 503 | #endif |
b1248f16 | 504 | #endif |
fe14fcc3 | 505 | } |
a687059c | 506 | } |
a0d0e21e | 507 | return IoIFP(GvIOp(gv)); |
a687059c LW |
508 | } |
509 | else | |
22fae026 TM |
510 | PerlIO_printf(PerlIO_stderr(), "Can't open %s: %s\n", |
511 | SvPV(sv, na), Strerror(errno)); | |
a687059c LW |
512 | } |
513 | if (inplace) { | |
79072805 | 514 | (void)do_close(argvoutgv,FALSE); |
4633a7c4 | 515 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
516 | } |
517 | return Nullfp; | |
518 | } | |
519 | ||
fe14fcc3 | 520 | #ifdef HAS_PIPE |
afd9f252 | 521 | void |
8ac85365 | 522 | do_pipe(SV *sv, GV *rgv, GV *wgv) |
afd9f252 | 523 | { |
79072805 LW |
524 | register IO *rstio; |
525 | register IO *wstio; | |
afd9f252 LW |
526 | int fd[2]; |
527 | ||
79072805 | 528 | if (!rgv) |
afd9f252 | 529 | goto badexit; |
79072805 | 530 | if (!wgv) |
afd9f252 LW |
531 | goto badexit; |
532 | ||
a0d0e21e LW |
533 | rstio = GvIOn(rgv); |
534 | wstio = GvIOn(wgv); | |
afd9f252 | 535 | |
a0d0e21e | 536 | if (IoIFP(rstio)) |
79072805 | 537 | do_close(rgv,FALSE); |
a0d0e21e | 538 | if (IoIFP(wstio)) |
79072805 | 539 | do_close(wgv,FALSE); |
afd9f252 | 540 | |
3028581b | 541 | if (PerlProc_pipe(fd) < 0) |
afd9f252 | 542 | goto badexit; |
760ac839 LW |
543 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"); |
544 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"); | |
8990e307 LW |
545 | IoIFP(wstio) = IoOFP(wstio); |
546 | IoTYPE(rstio) = '<'; | |
547 | IoTYPE(wstio) = '>'; | |
548 | if (!IoIFP(rstio) || !IoOFP(wstio)) { | |
760ac839 | 549 | if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio)); |
3028581b | 550 | else PerlLIO_close(fd[0]); |
760ac839 | 551 | if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio)); |
3028581b | 552 | else PerlLIO_close(fd[1]); |
fe14fcc3 LW |
553 | goto badexit; |
554 | } | |
afd9f252 | 555 | |
79072805 | 556 | sv_setsv(sv,&sv_yes); |
afd9f252 LW |
557 | return; |
558 | ||
559 | badexit: | |
79072805 | 560 | sv_setsv(sv,&sv_undef); |
afd9f252 LW |
561 | return; |
562 | } | |
b1248f16 | 563 | #endif |
afd9f252 | 564 | |
517844ec | 565 | /* explicit renamed to avoid C++ conflict -- kja */ |
a687059c | 566 | bool |
517844ec | 567 | do_close(GV *gv, bool not_implicit) |
a687059c | 568 | { |
1193dd27 IZ |
569 | bool retval; |
570 | IO *io; | |
a687059c | 571 | |
79072805 LW |
572 | if (!gv) |
573 | gv = argvgv; | |
a0d0e21e | 574 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
748a9306 | 575 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 | 576 | return FALSE; |
99b89507 | 577 | } |
79072805 LW |
578 | io = GvIO(gv); |
579 | if (!io) { /* never opened */ | |
517844ec | 580 | if (dowarn && not_implicit) |
79072805 | 581 | warn("Close on unopened file <%s>",GvENAME(gv)); |
a687059c LW |
582 | return FALSE; |
583 | } | |
1193dd27 | 584 | retval = io_close(io); |
517844ec | 585 | if (not_implicit) { |
1193dd27 IZ |
586 | IoLINES(io) = 0; |
587 | IoPAGE(io) = 0; | |
588 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
589 | } | |
590 | IoTYPE(io) = ' '; | |
591 | return retval; | |
592 | } | |
593 | ||
594 | bool | |
8ac85365 | 595 | io_close(IO *io) |
1193dd27 IZ |
596 | { |
597 | bool retval = FALSE; | |
598 | int status; | |
599 | ||
8990e307 LW |
600 | if (IoIFP(io)) { |
601 | if (IoTYPE(io) == '|') { | |
3028581b | 602 | status = PerlProc_pclose(IoIFP(io)); |
f86702cc | 603 | STATUS_NATIVE_SET(status); |
1e422769 | 604 | retval = (STATUS_POSIX == 0); |
a687059c | 605 | } |
8990e307 | 606 | else if (IoTYPE(io) == '-') |
a687059c LW |
607 | retval = TRUE; |
608 | else { | |
8990e307 | 609 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
760ac839 LW |
610 | retval = (PerlIO_close(IoOFP(io)) != EOF); |
611 | PerlIO_close(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
612 | } |
613 | else | |
760ac839 | 614 | retval = (PerlIO_close(IoIFP(io)) != EOF); |
a687059c | 615 | } |
8990e307 | 616 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 | 617 | } |
1193dd27 | 618 | |
a687059c LW |
619 | return retval; |
620 | } | |
621 | ||
622 | bool | |
8ac85365 | 623 | do_eof(GV *gv) |
a687059c | 624 | { |
11343788 | 625 | dTHR; |
79072805 | 626 | register IO *io; |
a687059c LW |
627 | int ch; |
628 | ||
79072805 | 629 | io = GvIO(gv); |
a687059c | 630 | |
79072805 | 631 | if (!io) |
a687059c LW |
632 | return TRUE; |
633 | ||
8990e307 | 634 | while (IoIFP(io)) { |
a687059c | 635 | |
760ac839 LW |
636 | if (PerlIO_has_cntptr(IoIFP(io))) { /* (the code works without this) */ |
637 | if (PerlIO_get_cnt(IoIFP(io)) > 0) /* cheat a little, since */ | |
638 | return FALSE; /* this is the most usual case */ | |
639 | } | |
a687059c | 640 | |
760ac839 | 641 | ch = PerlIO_getc(IoIFP(io)); |
a687059c | 642 | if (ch != EOF) { |
760ac839 | 643 | (void)PerlIO_ungetc(IoIFP(io),ch); |
a687059c LW |
644 | return FALSE; |
645 | } | |
760ac839 LW |
646 | if (PerlIO_has_cntptr(IoIFP(io)) && PerlIO_canset_cnt(IoIFP(io))) { |
647 | if (PerlIO_get_cnt(IoIFP(io)) < -1) | |
648 | PerlIO_set_cnt(IoIFP(io),-1); | |
649 | } | |
8990e307 | 650 | if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
79072805 | 651 | if (!nextargv(argvgv)) /* get another fp handy */ |
a687059c LW |
652 | return TRUE; |
653 | } | |
654 | else | |
655 | return TRUE; /* normal fp, definitely end of file */ | |
656 | } | |
657 | return TRUE; | |
658 | } | |
659 | ||
660 | long | |
8ac85365 | 661 | do_tell(GV *gv) |
a687059c | 662 | { |
79072805 | 663 | register IO *io; |
96e4d5b1 | 664 | register PerlIO *fp; |
a687059c | 665 | |
96e4d5b1 | 666 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 667 | #ifdef ULTRIX_STDIO_BOTCH |
96e4d5b1 | 668 | if (PerlIO_eof(fp)) |
669 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 670 | #endif |
8903cb82 | 671 | return PerlIO_tell(fp); |
96e4d5b1 | 672 | } |
a687059c | 673 | if (dowarn) |
8903cb82 | 674 | warn("tell() on unopened file"); |
748a9306 | 675 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
676 | return -1L; |
677 | } | |
678 | ||
679 | bool | |
8ac85365 | 680 | do_seek(GV *gv, long int pos, int whence) |
a687059c | 681 | { |
79072805 | 682 | register IO *io; |
137443ea | 683 | register PerlIO *fp; |
a687059c | 684 | |
137443ea | 685 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) { |
bee1dbe2 | 686 | #ifdef ULTRIX_STDIO_BOTCH |
137443ea | 687 | if (PerlIO_eof(fp)) |
688 | (void)PerlIO_seek(fp, 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 689 | #endif |
8903cb82 | 690 | return PerlIO_seek(fp, pos, whence) >= 0; |
137443ea | 691 | } |
a687059c | 692 | if (dowarn) |
8903cb82 | 693 | warn("seek() on unopened file"); |
748a9306 | 694 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
695 | return FALSE; |
696 | } | |
697 | ||
8903cb82 | 698 | long |
8ac85365 | 699 | do_sysseek(GV *gv, long int pos, int whence) |
8903cb82 | 700 | { |
701 | register IO *io; | |
702 | register PerlIO *fp; | |
703 | ||
704 | if (gv && (io = GvIO(gv)) && (fp = IoIFP(io))) | |
3028581b | 705 | return PerlLIO_lseek(PerlIO_fileno(fp), pos, whence); |
8903cb82 | 706 | if (dowarn) |
707 | warn("sysseek() on unopened file"); | |
708 | SETERRNO(EBADF,RMS$_IFI); | |
709 | return -1L; | |
710 | } | |
711 | ||
a0d0e21e | 712 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 713 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 714 | #define HAS_CHSIZE |
6eb13c3b | 715 | |
517844ec | 716 | I32 my_chsize(fd, length) |
79072805 | 717 | I32 fd; /* file descriptor */ |
85e6fe83 | 718 | Off_t length; /* length to set file to */ |
6eb13c3b | 719 | { |
6eb13c3b LW |
720 | struct flock fl; |
721 | struct stat filebuf; | |
722 | ||
3028581b | 723 | if (PerlLIO_fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
724 | return -1; |
725 | ||
726 | if (filebuf.st_size < length) { | |
727 | ||
728 | /* extend file length */ | |
729 | ||
3028581b | 730 | if ((PerlLIO_lseek(fd, (length - 1), 0)) < 0) |
6eb13c3b LW |
731 | return -1; |
732 | ||
733 | /* write a "0" byte */ | |
734 | ||
3028581b | 735 | if ((PerlLIO_write(fd, "", 1)) != 1) |
6eb13c3b LW |
736 | return -1; |
737 | } | |
738 | else { | |
739 | /* truncate length */ | |
740 | ||
741 | fl.l_whence = 0; | |
742 | fl.l_len = 0; | |
743 | fl.l_start = length; | |
a0d0e21e | 744 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
745 | |
746 | /* | |
a0d0e21e | 747 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
748 | * fcntl(2), which truncates the file so that it ends at the |
749 | * position indicated by fl.l_start. | |
750 | * | |
751 | * Will minor miracles never cease? | |
752 | */ | |
753 | ||
a0d0e21e | 754 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
755 | return -1; |
756 | ||
757 | } | |
758 | ||
759 | return 0; | |
760 | } | |
a0d0e21e | 761 | #endif /* F_FREESP */ |
ff8e2863 | 762 | |
a687059c | 763 | bool |
6acef3b7 | 764 | do_print(register SV *sv, PerlIO *fp) |
a687059c LW |
765 | { |
766 | register char *tmps; | |
463ee0b2 | 767 | STRLEN len; |
a687059c | 768 | |
79072805 LW |
769 | /* assuming fp is checked earlier */ |
770 | if (!sv) | |
771 | return TRUE; | |
772 | if (ofmt) { | |
8990e307 | 773 | if (SvGMAGICAL(sv)) |
79072805 | 774 | mg_get(sv); |
463ee0b2 | 775 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
760ac839 LW |
776 | PerlIO_printf(fp, ofmt, (double)SvIVX(sv)); |
777 | return !PerlIO_error(fp); | |
79072805 | 778 | } |
463ee0b2 | 779 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 780 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
760ac839 LW |
781 | PerlIO_printf(fp, ofmt, SvNVX(sv)); |
782 | return !PerlIO_error(fp); | |
79072805 | 783 | } |
a687059c | 784 | } |
79072805 LW |
785 | switch (SvTYPE(sv)) { |
786 | case SVt_NULL: | |
8990e307 LW |
787 | if (dowarn) |
788 | warn(warn_uninit); | |
ff8e2863 | 789 | return TRUE; |
79072805 | 790 | case SVt_IV: |
a0d0e21e LW |
791 | if (SvIOK(sv)) { |
792 | if (SvGMAGICAL(sv)) | |
793 | mg_get(sv); | |
760ac839 LW |
794 | PerlIO_printf(fp, "%ld", (long)SvIVX(sv)); |
795 | return !PerlIO_error(fp); | |
a0d0e21e LW |
796 | } |
797 | /* FALL THROUGH */ | |
79072805 | 798 | default: |
463ee0b2 | 799 | tmps = SvPV(sv, len); |
79072805 | 800 | break; |
ff8e2863 | 801 | } |
760ac839 | 802 | if (len && (PerlIO_write(fp,tmps,len) == 0 || PerlIO_error(fp))) |
a687059c | 803 | return FALSE; |
760ac839 | 804 | return !PerlIO_error(fp); |
a687059c LW |
805 | } |
806 | ||
79072805 | 807 | I32 |
8ac85365 | 808 | my_stat(ARGSproto) |
a687059c | 809 | { |
4e35701f | 810 | djSP; |
79072805 | 811 | IO *io; |
748a9306 | 812 | GV* tmpgv; |
79072805 | 813 | |
a0d0e21e | 814 | if (op->op_flags & OPf_REF) { |
79072805 | 815 | EXTEND(sp,1); |
748a9306 LW |
816 | tmpgv = cGVOP->op_gv; |
817 | do_fstat: | |
818 | io = GvIO(tmpgv); | |
8990e307 | 819 | if (io && IoIFP(io)) { |
748a9306 | 820 | statgv = tmpgv; |
79072805 LW |
821 | sv_setpv(statname,""); |
822 | laststype = OP_STAT; | |
3028581b | 823 | return (laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &statcache)); |
a687059c LW |
824 | } |
825 | else { | |
748a9306 | 826 | if (tmpgv == defgv) |
57ebbfd0 | 827 | return laststatval; |
a687059c LW |
828 | if (dowarn) |
829 | warn("Stat on unopened file <%s>", | |
748a9306 | 830 | GvENAME(tmpgv)); |
79072805 LW |
831 | statgv = Nullgv; |
832 | sv_setpv(statname,""); | |
57ebbfd0 | 833 | return (laststatval = -1); |
a687059c LW |
834 | } |
835 | } | |
836 | else { | |
748a9306 | 837 | SV* sv = POPs; |
79072805 | 838 | PUTBACK; |
748a9306 LW |
839 | if (SvTYPE(sv) == SVt_PVGV) { |
840 | tmpgv = (GV*)sv; | |
841 | goto do_fstat; | |
842 | } | |
843 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
844 | tmpgv = (GV*)SvRV(sv); | |
845 | goto do_fstat; | |
846 | } | |
847 | ||
79072805 | 848 | statgv = Nullgv; |
463ee0b2 | 849 | sv_setpv(statname,SvPV(sv, na)); |
79072805 | 850 | laststype = OP_STAT; |
3028581b | 851 | laststatval = PerlLIO_stat(SvPV(sv, na),&statcache); |
463ee0b2 | 852 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
853 | warn(warn_nl, "stat"); |
854 | return laststatval; | |
a687059c LW |
855 | } |
856 | } | |
857 | ||
79072805 | 858 | I32 |
8ac85365 | 859 | my_lstat(ARGSproto) |
c623bd54 | 860 | { |
4e35701f | 861 | djSP; |
79072805 | 862 | SV *sv; |
a0d0e21e | 863 | if (op->op_flags & OPf_REF) { |
79072805 LW |
864 | EXTEND(sp,1); |
865 | if (cGVOP->op_gv == defgv) { | |
866 | if (laststype != OP_LSTAT) | |
463ee0b2 | 867 | croak("The stat preceding -l _ wasn't an lstat"); |
fe14fcc3 LW |
868 | return laststatval; |
869 | } | |
463ee0b2 | 870 | croak("You can't use -l on a filehandle"); |
fe14fcc3 | 871 | } |
c623bd54 | 872 | |
79072805 LW |
873 | laststype = OP_LSTAT; |
874 | statgv = Nullgv; | |
875 | sv = POPs; | |
876 | PUTBACK; | |
463ee0b2 | 877 | sv_setpv(statname,SvPV(sv, na)); |
fe14fcc3 | 878 | #ifdef HAS_LSTAT |
3028581b | 879 | laststatval = PerlLIO_lstat(SvPV(sv, na),&statcache); |
c623bd54 | 880 | #else |
3028581b | 881 | laststatval = PerlLIO_stat(SvPV(sv, na),&statcache); |
c623bd54 | 882 | #endif |
463ee0b2 | 883 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
884 | warn(warn_nl, "lstat"); |
885 | return laststatval; | |
c623bd54 LW |
886 | } |
887 | ||
a687059c | 888 | bool |
8ac85365 | 889 | do_aexec(SV *really, register SV **mark, register SV **sp) |
a687059c | 890 | { |
a687059c | 891 | register char **a; |
a687059c LW |
892 | char *tmps; |
893 | ||
79072805 | 894 | if (sp > mark) { |
11343788 | 895 | dTHR; |
79072805 | 896 | New(401,Argv, sp - mark + 1, char*); |
bee1dbe2 | 897 | a = Argv; |
79072805 LW |
898 | while (++mark <= sp) { |
899 | if (*mark) | |
463ee0b2 | 900 | *a++ = SvPVx(*mark, na); |
a687059c LW |
901 | else |
902 | *a++ = ""; | |
903 | } | |
904 | *a = Nullch; | |
bee1dbe2 | 905 | if (*Argv[0] != '/') /* will execvp use PATH? */ |
79072805 | 906 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
463ee0b2 | 907 | if (really && *(tmps = SvPV(really, na))) |
3028581b | 908 | PerlProc_execvp(tmps,Argv); |
a687059c | 909 | else |
3028581b | 910 | PerlProc_execvp(Argv[0],Argv); |
a0d0e21e LW |
911 | if (dowarn) |
912 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 913 | } |
bee1dbe2 | 914 | do_execfree(); |
a687059c LW |
915 | return FALSE; |
916 | } | |
917 | ||
fe14fcc3 | 918 | void |
8ac85365 | 919 | do_execfree(void) |
ff8e2863 LW |
920 | { |
921 | if (Argv) { | |
922 | Safefree(Argv); | |
923 | Argv = Null(char **); | |
924 | } | |
925 | if (Cmd) { | |
926 | Safefree(Cmd); | |
927 | Cmd = Nullch; | |
928 | } | |
929 | } | |
930 | ||
39e571d4 | 931 | #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) |
760ac839 | 932 | |
a687059c | 933 | bool |
8ac85365 | 934 | do_exec(char *cmd) |
a687059c LW |
935 | { |
936 | register char **a; | |
937 | register char *s; | |
a687059c LW |
938 | char flags[10]; |
939 | ||
748a9306 LW |
940 | while (*cmd && isSPACE(*cmd)) |
941 | cmd++; | |
942 | ||
a687059c LW |
943 | /* save an extra exec if possible */ |
944 | ||
bf38876a LW |
945 | #ifdef CSH |
946 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { | |
a687059c | 947 | strcpy(flags,"-c"); |
bf38876a | 948 | s = cmd+cshlen+3; |
a687059c LW |
949 | if (*s == 'f') { |
950 | s++; | |
951 | strcat(flags,"f"); | |
952 | } | |
953 | if (*s == ' ') | |
954 | s++; | |
955 | if (*s++ == '\'') { | |
956 | char *ncmd = s; | |
957 | ||
958 | while (*s) | |
959 | s++; | |
960 | if (s[-1] == '\n') | |
961 | *--s = '\0'; | |
962 | if (s[-1] == '\'') { | |
963 | *--s = '\0'; | |
3028581b | 964 | PerlProc_execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
965 | *s = '\''; |
966 | return FALSE; | |
967 | } | |
968 | } | |
969 | } | |
bf38876a | 970 | #endif /* CSH */ |
a687059c LW |
971 | |
972 | /* see if there are shell metacharacters in it */ | |
973 | ||
748a9306 LW |
974 | if (*cmd == '.' && isSPACE(cmd[1])) |
975 | goto doshell; | |
976 | ||
977 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
978 | goto doshell; | |
979 | ||
99b89507 | 980 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
981 | if (*s == '=') |
982 | goto doshell; | |
748a9306 | 983 | |
a687059c | 984 | for (s = cmd; *s; s++) { |
93a17b20 | 985 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
986 | if (*s == '\n' && !s[1]) { |
987 | *s = '\0'; | |
988 | break; | |
989 | } | |
990 | doshell: | |
3028581b | 991 | PerlProc_execl(sh_path, "sh", "-c", cmd, (char*)0); |
a687059c LW |
992 | return FALSE; |
993 | } | |
994 | } | |
748a9306 | 995 | |
ff8e2863 | 996 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
a0d0e21e | 997 | Cmd = savepvn(cmd, s-cmd); |
ff8e2863 LW |
998 | a = Argv; |
999 | for (s = Cmd; *s;) { | |
99b89507 | 1000 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
1001 | if (*s) |
1002 | *(a++) = s; | |
99b89507 | 1003 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
1004 | if (*s) |
1005 | *s++ = '\0'; | |
1006 | } | |
1007 | *a = Nullch; | |
ff8e2863 | 1008 | if (Argv[0]) { |
3028581b | 1009 | PerlProc_execvp(Argv[0],Argv); |
b1248f16 | 1010 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1011 | do_execfree(); |
a687059c | 1012 | goto doshell; |
b1248f16 | 1013 | } |
a0d0e21e LW |
1014 | if (dowarn) |
1015 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 1016 | } |
ff8e2863 | 1017 | do_execfree(); |
a687059c LW |
1018 | return FALSE; |
1019 | } | |
1020 | ||
6890e559 | 1021 | #endif /* OS2 || WIN32 */ |
760ac839 | 1022 | |
79072805 | 1023 | I32 |
8ac85365 | 1024 | apply(I32 type, register SV **mark, register SV **sp) |
a687059c | 1025 | { |
11343788 | 1026 | dTHR; |
79072805 LW |
1027 | register I32 val; |
1028 | register I32 val2; | |
1029 | register I32 tot = 0; | |
a687059c | 1030 | char *s; |
79072805 | 1031 | SV **oldmark = mark; |
a687059c | 1032 | |
463ee0b2 LW |
1033 | if (tainting) { |
1034 | while (++mark <= sp) { | |
bbce6d69 | 1035 | if (SvTAINTED(*mark)) { |
1036 | TAINT; | |
1037 | break; | |
1038 | } | |
463ee0b2 LW |
1039 | } |
1040 | mark = oldmark; | |
1041 | } | |
a687059c | 1042 | switch (type) { |
79072805 LW |
1043 | case OP_CHMOD: |
1044 | TAINT_PROPER("chmod"); | |
1045 | if (++mark <= sp) { | |
1046 | tot = sp - mark; | |
463ee0b2 | 1047 | val = SvIVx(*mark); |
79072805 | 1048 | while (++mark <= sp) { |
3028581b | 1049 | if (PerlLIO_chmod(SvPVx(*mark, na),val)) |
a687059c LW |
1050 | tot--; |
1051 | } | |
1052 | } | |
1053 | break; | |
fe14fcc3 | 1054 | #ifdef HAS_CHOWN |
79072805 LW |
1055 | case OP_CHOWN: |
1056 | TAINT_PROPER("chown"); | |
1057 | if (sp - mark > 2) { | |
463ee0b2 LW |
1058 | val = SvIVx(*++mark); |
1059 | val2 = SvIVx(*++mark); | |
a0d0e21e | 1060 | tot = sp - mark; |
79072805 | 1061 | while (++mark <= sp) { |
463ee0b2 | 1062 | if (chown(SvPVx(*mark, na),val,val2)) |
a687059c LW |
1063 | tot--; |
1064 | } | |
1065 | } | |
1066 | break; | |
b1248f16 | 1067 | #endif |
fe14fcc3 | 1068 | #ifdef HAS_KILL |
79072805 LW |
1069 | case OP_KILL: |
1070 | TAINT_PROPER("kill"); | |
55497cff | 1071 | if (mark == sp) |
1072 | break; | |
463ee0b2 | 1073 | s = SvPVx(*++mark, na); |
79072805 LW |
1074 | tot = sp - mark; |
1075 | if (isUPPER(*s)) { | |
1076 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') | |
1077 | s += 3; | |
1078 | if (!(val = whichsig(s))) | |
463ee0b2 | 1079 | croak("Unrecognized signal name \"%s\"",s); |
79072805 LW |
1080 | } |
1081 | else | |
463ee0b2 | 1082 | val = SvIVx(*mark); |
3595fcef | 1083 | #ifdef VMS |
1084 | /* kill() doesn't do process groups (job trees?) under VMS */ | |
1085 | if (val < 0) val = -val; | |
1086 | if (val == SIGKILL) { | |
1087 | # include <starlet.h> | |
1088 | /* Use native sys$delprc() to insure that target process is | |
1089 | * deleted; supervisor-mode images don't pay attention to | |
1090 | * CRTL's emulation of Unix-style signals and kill() | |
1091 | */ | |
1092 | while (++mark <= sp) { | |
1093 | I32 proc = SvIVx(*mark); | |
1094 | register unsigned long int __vmssts; | |
1095 | if (!((__vmssts = sys$delprc(&proc,0)) & 1)) { | |
1096 | tot--; | |
1097 | switch (__vmssts) { | |
1098 | case SS$_NONEXPR: | |
1099 | case SS$_NOSUCHNODE: | |
1100 | SETERRNO(ESRCH,__vmssts); | |
1101 | break; | |
1102 | case SS$_NOPRIV: | |
1103 | SETERRNO(EPERM,__vmssts); | |
1104 | break; | |
1105 | default: | |
1106 | SETERRNO(EVMSERR,__vmssts); | |
1107 | } | |
1108 | } | |
1109 | } | |
1110 | break; | |
1111 | } | |
1112 | #endif | |
79072805 LW |
1113 | if (val < 0) { |
1114 | val = -val; | |
1115 | while (++mark <= sp) { | |
463ee0b2 | 1116 | I32 proc = SvIVx(*mark); |
fe14fcc3 | 1117 | #ifdef HAS_KILLPG |
3028581b | 1118 | if (PerlProc_killpg(proc,val)) /* BSD */ |
a687059c | 1119 | #else |
3028581b | 1120 | if (PerlProc_kill(-proc,val)) /* SYSV */ |
a687059c | 1121 | #endif |
79072805 | 1122 | tot--; |
a687059c | 1123 | } |
79072805 LW |
1124 | } |
1125 | else { | |
1126 | while (++mark <= sp) { | |
3028581b | 1127 | if (PerlProc_kill(SvIVx(*mark),val)) |
79072805 | 1128 | tot--; |
a687059c LW |
1129 | } |
1130 | } | |
1131 | break; | |
b1248f16 | 1132 | #endif |
79072805 LW |
1133 | case OP_UNLINK: |
1134 | TAINT_PROPER("unlink"); | |
1135 | tot = sp - mark; | |
1136 | while (++mark <= sp) { | |
463ee0b2 | 1137 | s = SvPVx(*mark, na); |
a687059c LW |
1138 | if (euid || unsafe) { |
1139 | if (UNLINK(s)) | |
1140 | tot--; | |
1141 | } | |
1142 | else { /* don't let root wipe out directories without -U */ | |
fe14fcc3 | 1143 | #ifdef HAS_LSTAT |
3028581b | 1144 | if (PerlLIO_lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1145 | #else |
3028581b | 1146 | if (PerlLIO_stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1147 | #endif |
a687059c LW |
1148 | tot--; |
1149 | else { | |
1150 | if (UNLINK(s)) | |
1151 | tot--; | |
1152 | } | |
1153 | } | |
1154 | } | |
1155 | break; | |
a0d0e21e | 1156 | #ifdef HAS_UTIME |
79072805 LW |
1157 | case OP_UTIME: |
1158 | TAINT_PROPER("utime"); | |
1159 | if (sp - mark > 2) { | |
748a9306 | 1160 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1161 | struct utimbuf utbuf; |
1162 | #else | |
a687059c | 1163 | struct { |
663a0e37 LW |
1164 | long actime; |
1165 | long modtime; | |
a687059c | 1166 | } utbuf; |
663a0e37 | 1167 | #endif |
a687059c | 1168 | |
afd9f252 | 1169 | Zero(&utbuf, sizeof utbuf, char); |
517844ec | 1170 | #ifdef BIG_TIME |
1171 | utbuf.actime = (Time_t)SvNVx(*++mark); /* time accessed */ | |
1172 | utbuf.modtime = (Time_t)SvNVx(*++mark); /* time modified */ | |
1173 | #else | |
463ee0b2 LW |
1174 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1175 | utbuf.modtime = SvIVx(*++mark); /* time modified */ | |
517844ec | 1176 | #endif |
79072805 LW |
1177 | tot = sp - mark; |
1178 | while (++mark <= sp) { | |
3028581b | 1179 | if (PerlLIO_utime(SvPVx(*mark, na),&utbuf)) |
a687059c LW |
1180 | tot--; |
1181 | } | |
a687059c LW |
1182 | } |
1183 | else | |
79072805 | 1184 | tot = 0; |
a687059c | 1185 | break; |
a0d0e21e | 1186 | #endif |
a687059c LW |
1187 | } |
1188 | return tot; | |
1189 | } | |
1190 | ||
1191 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1192 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 | 1193 | I32 |
8ac85365 | 1194 | cando(I32 bit, I32 effective, register struct stat *statbufp) |
a687059c | 1195 | { |
bee1dbe2 | 1196 | #ifdef DOSISH |
fe14fcc3 LW |
1197 | /* [Comments and code from Len Reed] |
1198 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1199 | * to write-protected files. The execute permission bit is set | |
1200 | * by the Miscrosoft C library stat() function for the following: | |
1201 | * .exe files | |
1202 | * .com files | |
1203 | * .bat files | |
1204 | * directories | |
1205 | * All files and directories are readable. | |
1206 | * Directories and special files, e.g. "CON", cannot be | |
1207 | * write-protected. | |
1208 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1209 | * bit set in the file system, but DOS permits changes to | |
1210 | * the directory anyway. In addition, all bets are off | |
1211 | * here for networked software, such as Novell and | |
1212 | * Sun's PC-NFS.] | |
1213 | */ | |
1214 | ||
bee1dbe2 LW |
1215 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1216 | * too so it will actually look into the files for magic numbers | |
1217 | */ | |
fe14fcc3 LW |
1218 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1219 | ||
55497cff | 1220 | #else /* ! DOSISH */ |
a687059c | 1221 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 LW |
1222 | if (bit == S_IXUSR) { |
1223 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) | |
a687059c LW |
1224 | return TRUE; |
1225 | } | |
1226 | else | |
1227 | return TRUE; /* root reads and writes anything */ | |
1228 | return FALSE; | |
1229 | } | |
1230 | if (statbufp->st_uid == (effective ? euid : uid) ) { | |
1231 | if (statbufp->st_mode & bit) | |
1232 | return TRUE; /* ok as "user" */ | |
1233 | } | |
79072805 | 1234 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c LW |
1235 | if (statbufp->st_mode & bit >> 3) |
1236 | return TRUE; /* ok as "group" */ | |
1237 | } | |
1238 | else if (statbufp->st_mode & bit >> 6) | |
1239 | return TRUE; /* ok as "other" */ | |
1240 | return FALSE; | |
55497cff | 1241 | #endif /* ! DOSISH */ |
a687059c | 1242 | } |
a0d0e21e | 1243 | #endif /* ! VMS */ |
a687059c | 1244 | |
79072805 | 1245 | I32 |
8ac85365 | 1246 | ingroup(I32 testgid, I32 effective) |
a687059c LW |
1247 | { |
1248 | if (testgid == (effective ? egid : gid)) | |
1249 | return TRUE; | |
fe14fcc3 | 1250 | #ifdef HAS_GETGROUPS |
a687059c LW |
1251 | #ifndef NGROUPS |
1252 | #define NGROUPS 32 | |
1253 | #endif | |
1254 | { | |
a0d0e21e | 1255 | Groups_t gary[NGROUPS]; |
79072805 | 1256 | I32 anum; |
a687059c LW |
1257 | |
1258 | anum = getgroups(NGROUPS,gary); | |
1259 | while (--anum >= 0) | |
1260 | if (gary[anum] == testgid) | |
1261 | return TRUE; | |
1262 | } | |
1263 | #endif | |
1264 | return FALSE; | |
1265 | } | |
c2ab57d4 | 1266 | |
fe14fcc3 | 1267 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1268 | |
79072805 | 1269 | I32 |
8ac85365 | 1270 | do_ipcget(I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1271 | { |
11343788 | 1272 | dTHR; |
c2ab57d4 | 1273 | key_t key; |
79072805 | 1274 | I32 n, flags; |
c2ab57d4 | 1275 | |
463ee0b2 LW |
1276 | key = (key_t)SvNVx(*++mark); |
1277 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1278 | flags = SvIVx(*++mark); | |
748a9306 | 1279 | SETERRNO(0,0); |
c2ab57d4 LW |
1280 | switch (optype) |
1281 | { | |
fe14fcc3 | 1282 | #ifdef HAS_MSG |
79072805 | 1283 | case OP_MSGGET: |
c2ab57d4 | 1284 | return msgget(key, flags); |
e5d73d77 | 1285 | #endif |
fe14fcc3 | 1286 | #ifdef HAS_SEM |
79072805 | 1287 | case OP_SEMGET: |
c2ab57d4 | 1288 | return semget(key, n, flags); |
e5d73d77 | 1289 | #endif |
fe14fcc3 | 1290 | #ifdef HAS_SHM |
79072805 | 1291 | case OP_SHMGET: |
c2ab57d4 | 1292 | return shmget(key, n, flags); |
e5d73d77 | 1293 | #endif |
fe14fcc3 | 1294 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1295 | default: |
c07a80fd | 1296 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 | 1297 | #endif |
c2ab57d4 LW |
1298 | } |
1299 | return -1; /* should never happen */ | |
1300 | } | |
1301 | ||
79072805 | 1302 | I32 |
8ac85365 | 1303 | do_ipcctl(I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1304 | { |
11343788 | 1305 | dTHR; |
79072805 | 1306 | SV *astr; |
c2ab57d4 | 1307 | char *a; |
a0d0e21e LW |
1308 | I32 id, n, cmd, infosize, getinfo; |
1309 | I32 ret = -1; | |
3e3baf6d TB |
1310 | #ifdef __linux__ /* XXX Need metaconfig test */ |
1311 | union semun unsemds; | |
1312 | #endif | |
c2ab57d4 | 1313 | |
463ee0b2 LW |
1314 | id = SvIVx(*++mark); |
1315 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1316 | cmd = SvIVx(*++mark); | |
79072805 | 1317 | astr = *++mark; |
c2ab57d4 LW |
1318 | infosize = 0; |
1319 | getinfo = (cmd == IPC_STAT); | |
1320 | ||
1321 | switch (optype) | |
1322 | { | |
fe14fcc3 | 1323 | #ifdef HAS_MSG |
79072805 | 1324 | case OP_MSGCTL: |
c2ab57d4 LW |
1325 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1326 | infosize = sizeof(struct msqid_ds); | |
1327 | break; | |
e5d73d77 | 1328 | #endif |
fe14fcc3 | 1329 | #ifdef HAS_SHM |
79072805 | 1330 | case OP_SHMCTL: |
c2ab57d4 LW |
1331 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1332 | infosize = sizeof(struct shmid_ds); | |
1333 | break; | |
e5d73d77 | 1334 | #endif |
fe14fcc3 | 1335 | #ifdef HAS_SEM |
79072805 | 1336 | case OP_SEMCTL: |
c2ab57d4 LW |
1337 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1338 | infosize = sizeof(struct semid_ds); | |
1339 | else if (cmd == GETALL || cmd == SETALL) | |
1340 | { | |
8e591e46 | 1341 | struct semid_ds semds; |
3e3baf6d | 1342 | #ifdef __linux__ /* XXX Need metaconfig test */ |
84902520 TB |
1343 | /* linux (and Solaris2?) uses : |
1344 | int semctl (int semid, int semnum, int cmd, union semun arg) | |
3e3baf6d TB |
1345 | union semun { |
1346 | int val; | |
1347 | struct semid_ds *buf; | |
1348 | ushort *array; | |
1349 | }; | |
1350 | */ | |
84902520 TB |
1351 | union semun semun; |
1352 | semun.buf = &semds; | |
1353 | if (semctl(id, 0, IPC_STAT, semun) == -1) | |
3e3baf6d | 1354 | #else |
c2ab57d4 | 1355 | if (semctl(id, 0, IPC_STAT, &semds) == -1) |
3e3baf6d | 1356 | #endif |
c2ab57d4 LW |
1357 | return -1; |
1358 | getinfo = (cmd == GETALL); | |
6e21c824 LW |
1359 | infosize = semds.sem_nsems * sizeof(short); |
1360 | /* "short" is technically wrong but much more portable | |
1361 | than guessing about u_?short(_t)? */ | |
c2ab57d4 LW |
1362 | } |
1363 | break; | |
e5d73d77 | 1364 | #endif |
fe14fcc3 | 1365 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1366 | default: |
c07a80fd | 1367 | croak("%s not implemented", op_desc[optype]); |
e5d73d77 | 1368 | #endif |
c2ab57d4 LW |
1369 | } |
1370 | ||
1371 | if (infosize) | |
1372 | { | |
a0d0e21e | 1373 | STRLEN len; |
c2ab57d4 LW |
1374 | if (getinfo) |
1375 | { | |
a0d0e21e LW |
1376 | SvPV_force(astr, len); |
1377 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
1378 | } |
1379 | else | |
1380 | { | |
463ee0b2 LW |
1381 | a = SvPV(astr, len); |
1382 | if (len != infosize) | |
9607fc9c | 1383 | croak("Bad arg length for %s, is %lu, should be %ld", |
1384 | op_desc[optype], (unsigned long)len, (long)infosize); | |
c2ab57d4 LW |
1385 | } |
1386 | } | |
1387 | else | |
1388 | { | |
c030ccd9 | 1389 | IV i = SvIV(astr); |
c2ab57d4 LW |
1390 | a = (char *)i; /* ouch */ |
1391 | } | |
748a9306 | 1392 | SETERRNO(0,0); |
c2ab57d4 LW |
1393 | switch (optype) |
1394 | { | |
fe14fcc3 | 1395 | #ifdef HAS_MSG |
79072805 | 1396 | case OP_MSGCTL: |
bee1dbe2 | 1397 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 1398 | break; |
e5d73d77 | 1399 | #endif |
fe14fcc3 | 1400 | #ifdef HAS_SEM |
79072805 | 1401 | case OP_SEMCTL: |
3e3baf6d TB |
1402 | #ifdef __linux__ /* XXX Need metaconfig test */ |
1403 | unsemds.buf = (struct semid_ds *)a; | |
1404 | ret = semctl(id, n, cmd, unsemds); | |
1405 | #else | |
79072805 | 1406 | ret = semctl(id, n, cmd, (struct semid_ds *)a); |
3e3baf6d | 1407 | #endif |
c2ab57d4 | 1408 | break; |
e5d73d77 | 1409 | #endif |
fe14fcc3 | 1410 | #ifdef HAS_SHM |
79072805 | 1411 | case OP_SHMCTL: |
bee1dbe2 | 1412 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 1413 | break; |
e5d73d77 | 1414 | #endif |
c2ab57d4 LW |
1415 | } |
1416 | if (getinfo && ret >= 0) { | |
79072805 LW |
1417 | SvCUR_set(astr, infosize); |
1418 | *SvEND(astr) = '\0'; | |
a0d0e21e | 1419 | SvSETMAGIC(astr); |
c2ab57d4 LW |
1420 | } |
1421 | return ret; | |
1422 | } | |
1423 | ||
79072805 | 1424 | I32 |
8ac85365 | 1425 | do_msgsnd(SV **mark, SV **sp) |
c2ab57d4 | 1426 | { |
fe14fcc3 | 1427 | #ifdef HAS_MSG |
11343788 | 1428 | dTHR; |
79072805 | 1429 | SV *mstr; |
c2ab57d4 | 1430 | char *mbuf; |
79072805 | 1431 | I32 id, msize, flags; |
463ee0b2 | 1432 | STRLEN len; |
c2ab57d4 | 1433 | |
463ee0b2 | 1434 | id = SvIVx(*++mark); |
79072805 | 1435 | mstr = *++mark; |
463ee0b2 LW |
1436 | flags = SvIVx(*++mark); |
1437 | mbuf = SvPV(mstr, len); | |
1438 | if ((msize = len - sizeof(long)) < 0) | |
1439 | croak("Arg too short for msgsnd"); | |
748a9306 | 1440 | SETERRNO(0,0); |
bee1dbe2 | 1441 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 1442 | #else |
463ee0b2 | 1443 | croak("msgsnd not implemented"); |
e5d73d77 | 1444 | #endif |
c2ab57d4 LW |
1445 | } |
1446 | ||
79072805 | 1447 | I32 |
8ac85365 | 1448 | do_msgrcv(SV **mark, SV **sp) |
c2ab57d4 | 1449 | { |
fe14fcc3 | 1450 | #ifdef HAS_MSG |
11343788 | 1451 | dTHR; |
79072805 | 1452 | SV *mstr; |
c2ab57d4 LW |
1453 | char *mbuf; |
1454 | long mtype; | |
79072805 | 1455 | I32 id, msize, flags, ret; |
463ee0b2 | 1456 | STRLEN len; |
79072805 | 1457 | |
463ee0b2 | 1458 | id = SvIVx(*++mark); |
79072805 | 1459 | mstr = *++mark; |
463ee0b2 LW |
1460 | msize = SvIVx(*++mark); |
1461 | mtype = (long)SvIVx(*++mark); | |
1462 | flags = SvIVx(*++mark); | |
ed6116ce LW |
1463 | if (SvTHINKFIRST(mstr)) { |
1464 | if (SvREADONLY(mstr)) | |
1465 | croak("Can't msgrcv to readonly var"); | |
1466 | if (SvROK(mstr)) | |
1467 | sv_unref(mstr); | |
1468 | } | |
a0d0e21e LW |
1469 | SvPV_force(mstr, len); |
1470 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
1471 | ||
748a9306 | 1472 | SETERRNO(0,0); |
bee1dbe2 | 1473 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 1474 | if (ret >= 0) { |
79072805 LW |
1475 | SvCUR_set(mstr, sizeof(long)+ret); |
1476 | *SvEND(mstr) = '\0'; | |
c2ab57d4 LW |
1477 | } |
1478 | return ret; | |
e5d73d77 | 1479 | #else |
463ee0b2 | 1480 | croak("msgrcv not implemented"); |
e5d73d77 | 1481 | #endif |
c2ab57d4 LW |
1482 | } |
1483 | ||
79072805 | 1484 | I32 |
8ac85365 | 1485 | do_semop(SV **mark, SV **sp) |
c2ab57d4 | 1486 | { |
fe14fcc3 | 1487 | #ifdef HAS_SEM |
11343788 | 1488 | dTHR; |
79072805 | 1489 | SV *opstr; |
c2ab57d4 | 1490 | char *opbuf; |
463ee0b2 LW |
1491 | I32 id; |
1492 | STRLEN opsize; | |
c2ab57d4 | 1493 | |
463ee0b2 | 1494 | id = SvIVx(*++mark); |
79072805 | 1495 | opstr = *++mark; |
463ee0b2 | 1496 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 LW |
1497 | if (opsize < sizeof(struct sembuf) |
1498 | || (opsize % sizeof(struct sembuf)) != 0) { | |
748a9306 | 1499 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 LW |
1500 | return -1; |
1501 | } | |
748a9306 | 1502 | SETERRNO(0,0); |
6e21c824 | 1503 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 | 1504 | #else |
463ee0b2 | 1505 | croak("semop not implemented"); |
e5d73d77 | 1506 | #endif |
c2ab57d4 LW |
1507 | } |
1508 | ||
79072805 | 1509 | I32 |
8ac85365 | 1510 | do_shmio(I32 optype, SV **mark, SV **sp) |
c2ab57d4 | 1511 | { |
fe14fcc3 | 1512 | #ifdef HAS_SHM |
11343788 | 1513 | dTHR; |
79072805 | 1514 | SV *mstr; |
c2ab57d4 | 1515 | char *mbuf, *shm; |
79072805 | 1516 | I32 id, mpos, msize; |
463ee0b2 | 1517 | STRLEN len; |
c2ab57d4 | 1518 | struct shmid_ds shmds; |
c2ab57d4 | 1519 | |
463ee0b2 | 1520 | id = SvIVx(*++mark); |
79072805 | 1521 | mstr = *++mark; |
463ee0b2 LW |
1522 | mpos = SvIVx(*++mark); |
1523 | msize = SvIVx(*++mark); | |
748a9306 | 1524 | SETERRNO(0,0); |
c2ab57d4 LW |
1525 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1526 | return -1; | |
1527 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
748a9306 | 1528 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
1529 | return -1; |
1530 | } | |
8ac85365 | 1531 | shm = (char *)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
1532 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1533 | return -1; | |
79072805 | 1534 | if (optype == OP_SHMREAD) { |
a0d0e21e LW |
1535 | SvPV_force(mstr, len); |
1536 | mbuf = SvGROW(mstr, msize+1); | |
1537 | ||
bee1dbe2 | 1538 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
1539 | SvCUR_set(mstr, msize); |
1540 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 1541 | SvSETMAGIC(mstr); |
c2ab57d4 LW |
1542 | } |
1543 | else { | |
79072805 | 1544 | I32 n; |
c2ab57d4 | 1545 | |
a0d0e21e | 1546 | mbuf = SvPV(mstr, len); |
463ee0b2 | 1547 | if ((n = len) > msize) |
c2ab57d4 | 1548 | n = msize; |
bee1dbe2 | 1549 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 1550 | if (n < msize) |
bee1dbe2 | 1551 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
1552 | } |
1553 | return shmdt(shm); | |
e5d73d77 | 1554 | #else |
463ee0b2 | 1555 | croak("shm I/O not implemented"); |
e5d73d77 | 1556 | #endif |
c2ab57d4 LW |
1557 | } |
1558 | ||
fe14fcc3 | 1559 | #endif /* SYSV IPC */ |
4e35701f | 1560 |