Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doio.c |
a687059c | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, 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 LW |
36 | #ifdef I_UTIME |
37 | #include <utime.h> | |
38 | #endif | |
ff8e2863 LW |
39 | #ifdef I_FCNTL |
40 | #include <fcntl.h> | |
41 | #endif | |
fe14fcc3 LW |
42 | #ifdef I_SYS_FILE |
43 | #include <sys/file.h> | |
44 | #endif | |
a687059c | 45 | |
232e078e AD |
46 | #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */ |
47 | # include <sys/socket.h> | |
48 | # include <netdb.h> | |
49 | # ifndef ENOTSOCK | |
50 | # ifdef I_NET_ERRNO | |
51 | # include <net/errno.h> | |
52 | # endif | |
53 | # endif | |
54 | #endif | |
55 | ||
a687059c | 56 | bool |
a0d0e21e | 57 | do_open(gv,name,len,supplied_fp) |
79072805 | 58 | GV *gv; |
a687059c | 59 | register char *name; |
79072805 | 60 | I32 len; |
a0d0e21e | 61 | FILE *supplied_fp; |
a687059c LW |
62 | { |
63 | FILE *fp; | |
a0d0e21e LW |
64 | register IO *io = GvIOn(gv); |
65 | char *myname = savepv(name); | |
a687059c LW |
66 | int result; |
67 | int fd; | |
68 | int writing = 0; | |
a0d0e21e | 69 | int dodup; |
a687059c | 70 | char mode[3]; /* stdio file mode ("r\0" or "r+\0") */ |
6e21c824 LW |
71 | FILE *saveifp = Nullfp; |
72 | FILE *saveofp = Nullfp; | |
73 | char savetype = ' '; | |
a687059c | 74 | |
8990e307 | 75 | SAVEFREEPV(myname); |
bee1dbe2 | 76 | mode[0] = mode[1] = mode[2] = '\0'; |
a687059c LW |
77 | name = myname; |
78 | forkprocess = 1; /* assume true if no fork */ | |
99b89507 | 79 | while (len && isSPACE(name[len-1])) |
a687059c | 80 | name[--len] = '\0'; |
a0d0e21e | 81 | if (IoIFP(io)) { |
8990e307 LW |
82 | fd = fileno(IoIFP(io)); |
83 | if (IoTYPE(io) == '-') | |
c2ab57d4 | 84 | result = 0; |
6e21c824 | 85 | else if (fd <= maxsysfd) { |
8990e307 LW |
86 | saveifp = IoIFP(io); |
87 | saveofp = IoOFP(io); | |
88 | savetype = IoTYPE(io); | |
6e21c824 LW |
89 | result = 0; |
90 | } | |
8990e307 LW |
91 | else if (IoTYPE(io) == '|') |
92 | result = my_pclose(IoIFP(io)); | |
93 | else if (IoIFP(io) != IoOFP(io)) { | |
94 | if (IoOFP(io)) { | |
95 | result = fclose(IoOFP(io)); | |
96 | fclose(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
97 | } |
98 | else | |
8990e307 | 99 | result = fclose(IoIFP(io)); |
a687059c | 100 | } |
a687059c | 101 | else |
8990e307 | 102 | result = fclose(IoIFP(io)); |
6e21c824 | 103 | if (result == EOF && fd > maxsysfd) |
a687059c | 104 | fprintf(stderr,"Warning: unable to close filehandle %s properly.\n", |
79072805 | 105 | GvENAME(gv)); |
8990e307 | 106 | IoOFP(io) = IoIFP(io) = Nullfp; |
a687059c LW |
107 | } |
108 | if (*name == '+' && len > 1 && name[len-1] != '|') { /* scary */ | |
109 | mode[1] = *name++; | |
110 | mode[2] = '\0'; | |
111 | --len; | |
112 | writing = 1; | |
113 | } | |
114 | else { | |
115 | mode[1] = '\0'; | |
116 | } | |
8990e307 | 117 | IoTYPE(io) = *name; |
a687059c | 118 | if (*name == '|') { |
99b89507 LW |
119 | /*SUPPRESS 530*/ |
120 | for (name++; isSPACE(*name); name++) ; | |
79072805 LW |
121 | if (strNE(name,"-")) |
122 | TAINT_ENV(); | |
123 | TAINT_PROPER("piped open"); | |
a0d0e21e LW |
124 | if (dowarn && name[strlen(name)-1] == '|') |
125 | warn("Can't do bidirectional pipe"); | |
79072805 | 126 | fp = my_popen(name,"w"); |
a687059c LW |
127 | writing = 1; |
128 | } | |
a687059c | 129 | else if (*name == '>') { |
79072805 | 130 | TAINT_PROPER("open"); |
bf38876a LW |
131 | name++; |
132 | if (*name == '>') { | |
8990e307 | 133 | mode[0] = IoTYPE(io) = 'a'; |
bf38876a | 134 | name++; |
a687059c | 135 | } |
bf38876a | 136 | else |
a687059c | 137 | mode[0] = 'w'; |
a687059c | 138 | writing = 1; |
bf38876a LW |
139 | if (*name == '&') { |
140 | duplicity: | |
a0d0e21e | 141 | dodup = 1; |
bf38876a | 142 | name++; |
a0d0e21e LW |
143 | if (*name == '=') { |
144 | dodup = 0; | |
bf38876a | 145 | name++; |
a0d0e21e LW |
146 | } |
147 | if (!*name && supplied_fp) | |
148 | fp = supplied_fp; | |
bf38876a | 149 | else { |
a0d0e21e LW |
150 | while (isSPACE(*name)) |
151 | name++; | |
152 | if (isDIGIT(*name)) | |
153 | fd = atoi(name); | |
154 | else { | |
155 | IO* thatio; | |
156 | gv = gv_fetchpv(name,FALSE,SVt_PVIO); | |
157 | thatio = GvIO(gv); | |
158 | if (!thatio) { | |
6e21c824 | 159 | #ifdef EINVAL |
748a9306 | 160 | SETERRNO(EINVAL,SS$_IVCHAN); |
6e21c824 | 161 | #endif |
a0d0e21e LW |
162 | goto say_false; |
163 | } | |
164 | if (IoIFP(thatio)) { | |
165 | fd = fileno(IoIFP(thatio)); | |
166 | if (IoTYPE(thatio) == 's') | |
167 | IoTYPE(io) = 's'; | |
168 | } | |
169 | else | |
170 | fd = -1; | |
bf38876a | 171 | } |
a0d0e21e LW |
172 | if (dodup) |
173 | fd = dup(fd); | |
174 | if (!(fp = fdopen(fd,mode))) | |
fec02dd3 AD |
175 | if (dodup) |
176 | close(fd); | |
fe14fcc3 | 177 | } |
bf38876a LW |
178 | } |
179 | else { | |
99b89507 | 180 | while (isSPACE(*name)) |
bf38876a LW |
181 | name++; |
182 | if (strEQ(name,"-")) { | |
183 | fp = stdout; | |
8990e307 | 184 | IoTYPE(io) = '-'; |
bf38876a LW |
185 | } |
186 | else { | |
187 | fp = fopen(name,mode); | |
188 | } | |
189 | } | |
a687059c LW |
190 | } |
191 | else { | |
192 | if (*name == '<') { | |
bf38876a LW |
193 | mode[0] = 'r'; |
194 | name++; | |
99b89507 | 195 | while (isSPACE(*name)) |
bf38876a LW |
196 | name++; |
197 | if (*name == '&') | |
198 | goto duplicity; | |
a687059c LW |
199 | if (strEQ(name,"-")) { |
200 | fp = stdin; | |
8990e307 | 201 | IoTYPE(io) = '-'; |
a687059c | 202 | } |
bf38876a | 203 | else |
a687059c | 204 | fp = fopen(name,mode); |
a687059c LW |
205 | } |
206 | else if (name[len-1] == '|') { | |
a687059c | 207 | name[--len] = '\0'; |
99b89507 | 208 | while (len && isSPACE(name[len-1])) |
a687059c | 209 | name[--len] = '\0'; |
99b89507 LW |
210 | /*SUPPRESS 530*/ |
211 | for (; isSPACE(*name); name++) ; | |
79072805 LW |
212 | if (strNE(name,"-")) |
213 | TAINT_ENV(); | |
214 | TAINT_PROPER("piped open"); | |
215 | fp = my_popen(name,"r"); | |
8990e307 | 216 | IoTYPE(io) = '|'; |
a687059c LW |
217 | } |
218 | else { | |
8990e307 | 219 | IoTYPE(io) = '<'; |
99b89507 LW |
220 | /*SUPPRESS 530*/ |
221 | for (; isSPACE(*name); name++) ; | |
a687059c LW |
222 | if (strEQ(name,"-")) { |
223 | fp = stdin; | |
8990e307 | 224 | IoTYPE(io) = '-'; |
a687059c LW |
225 | } |
226 | else | |
227 | fp = fopen(name,"r"); | |
228 | } | |
229 | } | |
bee1dbe2 | 230 | if (!fp) { |
8990e307 | 231 | if (dowarn && IoTYPE(io) == '<' && strchr(name, '\n')) |
bee1dbe2 | 232 | warn(warn_nl, "open"); |
6e21c824 | 233 | goto say_false; |
bee1dbe2 | 234 | } |
8990e307 LW |
235 | if (IoTYPE(io) && |
236 | IoTYPE(io) != '|' && IoTYPE(io) != '-') { | |
a0d0e21e | 237 | if (Fstat(fileno(fp),&statbuf) < 0) { |
a687059c | 238 | (void)fclose(fp); |
6e21c824 | 239 | goto say_false; |
a687059c | 240 | } |
1462b684 | 241 | if (S_ISSOCK(statbuf.st_mode)) |
8990e307 | 242 | IoTYPE(io) = 's'; /* in case a socket was passed in to us */ |
99b89507 LW |
243 | #ifdef HAS_SOCKET |
244 | else if ( | |
c623bd54 | 245 | #ifdef S_IFMT |
99b89507 LW |
246 | !(statbuf.st_mode & S_IFMT) |
247 | #else | |
248 | !statbuf.st_mode | |
249 | #endif | |
250 | ) { | |
a0d0e21e LW |
251 | int buflen = sizeof tokenbuf; |
252 | if (getsockname(fileno(fp), (struct sockaddr *)tokenbuf, &buflen) >= 0 | |
bee1dbe2 | 253 | || errno != ENOTSOCK) |
8990e307 | 254 | IoTYPE(io) = 's'; /* some OS's return 0 on fstat()ed socket */ |
99b89507 LW |
255 | /* but some return 0 for streams too, sigh */ |
256 | } | |
bf38876a | 257 | #endif |
a687059c | 258 | } |
6e21c824 LW |
259 | if (saveifp) { /* must use old fp? */ |
260 | fd = fileno(saveifp); | |
261 | if (saveofp) { | |
262 | fflush(saveofp); /* emulate fclose() */ | |
263 | if (saveofp != saveifp) { /* was a socket? */ | |
264 | fclose(saveofp); | |
99b89507 LW |
265 | if (fd > 2) |
266 | Safefree(saveofp); | |
6e21c824 LW |
267 | } |
268 | } | |
269 | if (fd != fileno(fp)) { | |
bee1dbe2 | 270 | int pid; |
79072805 | 271 | SV *sv; |
bee1dbe2 | 272 | |
6e21c824 | 273 | dup2(fileno(fp), fd); |
79072805 | 274 | sv = *av_fetch(fdpid,fileno(fp),TRUE); |
a0d0e21e | 275 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 LW |
276 | pid = SvIVX(sv); |
277 | SvIVX(sv) = 0; | |
79072805 | 278 | sv = *av_fetch(fdpid,fd,TRUE); |
a0d0e21e | 279 | (void)SvUPGRADE(sv, SVt_IV); |
463ee0b2 | 280 | SvIVX(sv) = pid; |
6e21c824 | 281 | fclose(fp); |
bee1dbe2 | 282 | |
6e21c824 LW |
283 | } |
284 | fp = saveifp; | |
bee1dbe2 | 285 | clearerr(fp); |
6e21c824 | 286 | } |
a0d0e21e | 287 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
1462b684 | 288 | fd = fileno(fp); |
a0d0e21e | 289 | fcntl(fd,F_SETFD,fd > maxsysfd); |
1462b684 | 290 | #endif |
8990e307 | 291 | IoIFP(io) = fp; |
bf38876a | 292 | if (writing) { |
8990e307 LW |
293 | if (IoTYPE(io) == 's' |
294 | || (IoTYPE(io) == '>' && S_ISCHR(statbuf.st_mode)) ) { | |
295 | if (!(IoOFP(io) = fdopen(fileno(fp),"w"))) { | |
fe14fcc3 | 296 | fclose(fp); |
8990e307 | 297 | IoIFP(io) = Nullfp; |
6e21c824 | 298 | goto say_false; |
fe14fcc3 | 299 | } |
1462b684 LW |
300 | } |
301 | else | |
8990e307 | 302 | IoOFP(io) = fp; |
bf38876a | 303 | } |
a687059c | 304 | return TRUE; |
6e21c824 LW |
305 | |
306 | say_false: | |
8990e307 LW |
307 | IoIFP(io) = saveifp; |
308 | IoOFP(io) = saveofp; | |
309 | IoTYPE(io) = savetype; | |
6e21c824 | 310 | return FALSE; |
a687059c LW |
311 | } |
312 | ||
313 | FILE * | |
79072805 LW |
314 | nextargv(gv) |
315 | register GV *gv; | |
a687059c | 316 | { |
79072805 | 317 | register SV *sv; |
99b89507 | 318 | #ifndef FLEXFILENAMES |
c623bd54 LW |
319 | int filedev; |
320 | int fileino; | |
99b89507 | 321 | #endif |
c623bd54 LW |
322 | int fileuid; |
323 | int filegid; | |
fe14fcc3 | 324 | |
79072805 | 325 | if (!argvoutgv) |
85e6fe83 | 326 | argvoutgv = gv_fetchpv("ARGVOUT",TRUE,SVt_PVIO); |
fe14fcc3 | 327 | if (filemode & (S_ISUID|S_ISGID)) { |
a0d0e21e | 328 | fflush(IoIFP(GvIOn(argvoutgv))); /* chmod must follow last write */ |
fe14fcc3 LW |
329 | #ifdef HAS_FCHMOD |
330 | (void)fchmod(lastfd,filemode); | |
331 | #else | |
332 | (void)chmod(oldname,filemode); | |
333 | #endif | |
334 | } | |
335 | filemode = 0; | |
79072805 | 336 | while (av_len(GvAV(gv)) >= 0) { |
463ee0b2 | 337 | STRLEN len; |
79072805 | 338 | sv = av_shift(GvAV(gv)); |
8990e307 | 339 | SAVEFREESV(sv); |
79072805 LW |
340 | sv_setsv(GvSV(gv),sv); |
341 | SvSETMAGIC(GvSV(gv)); | |
463ee0b2 | 342 | oldname = SvPVx(GvSV(gv), len); |
a0d0e21e | 343 | if (do_open(gv,oldname,len,Nullfp)) { |
a687059c | 344 | if (inplace) { |
79072805 | 345 | TAINT_PROPER("inplace open"); |
c623bd54 | 346 | if (strEQ(oldname,"-")) { |
4633a7c4 | 347 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a0d0e21e | 348 | return IoIFP(GvIOp(gv)); |
c623bd54 | 349 | } |
99b89507 | 350 | #ifndef FLEXFILENAMES |
c623bd54 LW |
351 | filedev = statbuf.st_dev; |
352 | fileino = statbuf.st_ino; | |
99b89507 | 353 | #endif |
a687059c LW |
354 | filemode = statbuf.st_mode; |
355 | fileuid = statbuf.st_uid; | |
356 | filegid = statbuf.st_gid; | |
c623bd54 LW |
357 | if (!S_ISREG(filemode)) { |
358 | warn("Can't do inplace edit: %s is not a regular file", | |
359 | oldname ); | |
79072805 | 360 | do_close(gv,FALSE); |
c623bd54 LW |
361 | continue; |
362 | } | |
a687059c | 363 | if (*inplace) { |
ff8e2863 | 364 | #ifdef SUFFIX |
79072805 | 365 | add_suffix(sv,inplace); |
ff8e2863 | 366 | #else |
79072805 | 367 | sv_catpv(sv,inplace); |
ff8e2863 | 368 | #endif |
c623bd54 | 369 | #ifndef FLEXFILENAMES |
a0d0e21e | 370 | if (Stat(SvPVX(sv),&statbuf) >= 0 |
c623bd54 LW |
371 | && statbuf.st_dev == filedev |
372 | && statbuf.st_ino == fileino ) { | |
373 | warn("Can't do inplace edit: %s > 14 characters", | |
463ee0b2 | 374 | SvPVX(sv) ); |
79072805 | 375 | do_close(gv,FALSE); |
c623bd54 LW |
376 | continue; |
377 | } | |
378 | #endif | |
fe14fcc3 | 379 | #ifdef HAS_RENAME |
bee1dbe2 | 380 | #ifndef DOSISH |
463ee0b2 | 381 | if (rename(oldname,SvPVX(sv)) < 0) { |
c623bd54 | 382 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 383 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 384 | do_close(gv,FALSE); |
c623bd54 LW |
385 | continue; |
386 | } | |
a687059c | 387 | #else |
79072805 | 388 | do_close(gv,FALSE); |
463ee0b2 LW |
389 | (void)unlink(SvPVX(sv)); |
390 | (void)rename(oldname,SvPVX(sv)); | |
a0d0e21e | 391 | do_open(gv,SvPVX(sv),SvCUR(GvSV(gv)),Nullfp); |
ff8e2863 LW |
392 | #endif /* MSDOS */ |
393 | #else | |
463ee0b2 LW |
394 | (void)UNLINK(SvPVX(sv)); |
395 | if (link(oldname,SvPVX(sv)) < 0) { | |
c623bd54 | 396 | warn("Can't rename %s to %s: %s, skipping file", |
2304df62 | 397 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 398 | do_close(gv,FALSE); |
c623bd54 LW |
399 | continue; |
400 | } | |
a687059c LW |
401 | (void)UNLINK(oldname); |
402 | #endif | |
403 | } | |
404 | else { | |
bee1dbe2 | 405 | #ifndef DOSISH |
fe14fcc3 LW |
406 | if (UNLINK(oldname) < 0) { |
407 | warn("Can't rename %s to %s: %s, skipping file", | |
2304df62 | 408 | oldname, SvPVX(sv), Strerror(errno) ); |
79072805 | 409 | do_close(gv,FALSE); |
fe14fcc3 LW |
410 | continue; |
411 | } | |
ff8e2863 | 412 | #else |
463ee0b2 | 413 | croak("Can't do inplace edit without backup"); |
ff8e2863 | 414 | #endif |
a687059c LW |
415 | } |
416 | ||
79072805 LW |
417 | sv_setpvn(sv,">",1); |
418 | sv_catpv(sv,oldname); | |
748a9306 | 419 | SETERRNO(0,0); /* in case sprintf set errno */ |
a0d0e21e | 420 | if (!do_open(argvoutgv,SvPVX(sv),SvCUR(sv),Nullfp)) { |
c623bd54 | 421 | warn("Can't do inplace edit on %s: %s", |
2304df62 | 422 | oldname, Strerror(errno) ); |
79072805 | 423 | do_close(gv,FALSE); |
fe14fcc3 LW |
424 | continue; |
425 | } | |
4633a7c4 | 426 | setdefout(argvoutgv); |
a0d0e21e LW |
427 | lastfd = fileno(IoIFP(GvIOp(argvoutgv))); |
428 | (void)Fstat(lastfd,&statbuf); | |
fe14fcc3 LW |
429 | #ifdef HAS_FCHMOD |
430 | (void)fchmod(lastfd,filemode); | |
a687059c LW |
431 | #else |
432 | (void)chmod(oldname,filemode); | |
433 | #endif | |
fe14fcc3 LW |
434 | if (fileuid != statbuf.st_uid || filegid != statbuf.st_gid) { |
435 | #ifdef HAS_FCHOWN | |
436 | (void)fchown(lastfd,fileuid,filegid); | |
a687059c | 437 | #else |
fe14fcc3 LW |
438 | #ifdef HAS_CHOWN |
439 | (void)chown(oldname,fileuid,filegid); | |
a687059c | 440 | #endif |
b1248f16 | 441 | #endif |
fe14fcc3 | 442 | } |
a687059c | 443 | } |
a0d0e21e | 444 | return IoIFP(GvIOp(gv)); |
a687059c LW |
445 | } |
446 | else | |
2304df62 | 447 | fprintf(stderr,"Can't open %s: %s\n",SvPV(sv, na), Strerror(errno)); |
a687059c LW |
448 | } |
449 | if (inplace) { | |
79072805 | 450 | (void)do_close(argvoutgv,FALSE); |
4633a7c4 | 451 | setdefout(gv_fetchpv("STDOUT",TRUE,SVt_PVIO)); |
a687059c LW |
452 | } |
453 | return Nullfp; | |
454 | } | |
455 | ||
fe14fcc3 | 456 | #ifdef HAS_PIPE |
afd9f252 | 457 | void |
79072805 LW |
458 | do_pipe(sv, rgv, wgv) |
459 | SV *sv; | |
460 | GV *rgv; | |
461 | GV *wgv; | |
afd9f252 | 462 | { |
79072805 LW |
463 | register IO *rstio; |
464 | register IO *wstio; | |
afd9f252 LW |
465 | int fd[2]; |
466 | ||
79072805 | 467 | if (!rgv) |
afd9f252 | 468 | goto badexit; |
79072805 | 469 | if (!wgv) |
afd9f252 LW |
470 | goto badexit; |
471 | ||
a0d0e21e LW |
472 | rstio = GvIOn(rgv); |
473 | wstio = GvIOn(wgv); | |
afd9f252 | 474 | |
a0d0e21e | 475 | if (IoIFP(rstio)) |
79072805 | 476 | do_close(rgv,FALSE); |
a0d0e21e | 477 | if (IoIFP(wstio)) |
79072805 | 478 | do_close(wgv,FALSE); |
afd9f252 LW |
479 | |
480 | if (pipe(fd) < 0) | |
481 | goto badexit; | |
8990e307 LW |
482 | IoIFP(rstio) = fdopen(fd[0], "r"); |
483 | IoOFP(wstio) = fdopen(fd[1], "w"); | |
484 | IoIFP(wstio) = IoOFP(wstio); | |
485 | IoTYPE(rstio) = '<'; | |
486 | IoTYPE(wstio) = '>'; | |
487 | if (!IoIFP(rstio) || !IoOFP(wstio)) { | |
488 | if (IoIFP(rstio)) fclose(IoIFP(rstio)); | |
fe14fcc3 | 489 | else close(fd[0]); |
8990e307 | 490 | if (IoOFP(wstio)) fclose(IoOFP(wstio)); |
fe14fcc3 LW |
491 | else close(fd[1]); |
492 | goto badexit; | |
493 | } | |
afd9f252 | 494 | |
79072805 | 495 | sv_setsv(sv,&sv_yes); |
afd9f252 LW |
496 | return; |
497 | ||
498 | badexit: | |
79072805 | 499 | sv_setsv(sv,&sv_undef); |
afd9f252 LW |
500 | return; |
501 | } | |
b1248f16 | 502 | #endif |
afd9f252 | 503 | |
a687059c | 504 | bool |
a0d0e21e | 505 | #ifndef CAN_PROTOTYPE |
79072805 LW |
506 | do_close(gv,explicit) |
507 | GV *gv; | |
a687059c | 508 | bool explicit; |
8990e307 LW |
509 | #else |
510 | do_close(GV *gv, bool explicit) | |
a0d0e21e | 511 | #endif /* CAN_PROTOTYPE */ |
a687059c LW |
512 | { |
513 | bool retval = FALSE; | |
79072805 | 514 | register IO *io; |
a687059c LW |
515 | int status; |
516 | ||
79072805 LW |
517 | if (!gv) |
518 | gv = argvgv; | |
a0d0e21e | 519 | if (!gv || SvTYPE(gv) != SVt_PVGV) { |
748a9306 | 520 | SETERRNO(EBADF,SS$_IVCHAN); |
c2ab57d4 | 521 | return FALSE; |
99b89507 | 522 | } |
79072805 LW |
523 | io = GvIO(gv); |
524 | if (!io) { /* never opened */ | |
a687059c | 525 | if (dowarn && explicit) |
79072805 | 526 | warn("Close on unopened file <%s>",GvENAME(gv)); |
a687059c LW |
527 | return FALSE; |
528 | } | |
8990e307 LW |
529 | if (IoIFP(io)) { |
530 | if (IoTYPE(io) == '|') { | |
531 | status = my_pclose(IoIFP(io)); | |
c623bd54 | 532 | retval = (status == 0); |
748a9306 | 533 | statusvalue = FIXSTATUS(status); |
a687059c | 534 | } |
8990e307 | 535 | else if (IoTYPE(io) == '-') |
a687059c LW |
536 | retval = TRUE; |
537 | else { | |
8990e307 LW |
538 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { /* a socket */ |
539 | retval = (fclose(IoOFP(io)) != EOF); | |
540 | fclose(IoIFP(io)); /* clear stdio, fd already closed */ | |
c2ab57d4 LW |
541 | } |
542 | else | |
8990e307 | 543 | retval = (fclose(IoIFP(io)) != EOF); |
a687059c | 544 | } |
8990e307 | 545 | IoOFP(io) = IoIFP(io) = Nullfp; |
79072805 LW |
546 | } |
547 | if (explicit) { | |
8990e307 LW |
548 | IoLINES(io) = 0; |
549 | IoPAGE(io) = 0; | |
550 | IoLINES_LEFT(io) = IoPAGE_LEN(io); | |
a687059c | 551 | } |
8990e307 | 552 | IoTYPE(io) = ' '; |
a687059c LW |
553 | return retval; |
554 | } | |
555 | ||
556 | bool | |
79072805 LW |
557 | do_eof(gv) |
558 | GV *gv; | |
a687059c | 559 | { |
79072805 | 560 | register IO *io; |
a687059c LW |
561 | int ch; |
562 | ||
79072805 | 563 | io = GvIO(gv); |
a687059c | 564 | |
79072805 | 565 | if (!io) |
a687059c LW |
566 | return TRUE; |
567 | ||
8990e307 | 568 | while (IoIFP(io)) { |
a687059c | 569 | |
16d20bd9 AD |
570 | #ifdef USE_STDIO_PTR /* (the code works without this) */ |
571 | if (FILE_cnt(IoIFP(io)) > 0) /* cheat a little, since */ | |
a687059c LW |
572 | return FALSE; /* this is the most usual case */ |
573 | #endif | |
574 | ||
8990e307 | 575 | ch = getc(IoIFP(io)); |
a687059c | 576 | if (ch != EOF) { |
8990e307 | 577 | (void)ungetc(ch, IoIFP(io)); |
a687059c LW |
578 | return FALSE; |
579 | } | |
c2960299 | 580 | #if defined(USE_STDIO_PTR) && defined(STDIO_CNT_LVALUE) |
16d20bd9 AD |
581 | if (FILE_cnt(IoIFP(io)) < -1) |
582 | FILE_cnt(IoIFP(io)) = -1; | |
fe14fcc3 | 583 | #endif |
8990e307 | 584 | if (op->op_flags & OPf_SPECIAL) { /* not necessarily a real EOF yet? */ |
79072805 | 585 | if (!nextargv(argvgv)) /* get another fp handy */ |
a687059c LW |
586 | return TRUE; |
587 | } | |
588 | else | |
589 | return TRUE; /* normal fp, definitely end of file */ | |
590 | } | |
591 | return TRUE; | |
592 | } | |
593 | ||
594 | long | |
79072805 LW |
595 | do_tell(gv) |
596 | GV *gv; | |
a687059c | 597 | { |
79072805 | 598 | register IO *io; |
a687059c | 599 | |
79072805 | 600 | if (!gv) |
a687059c LW |
601 | goto phooey; |
602 | ||
79072805 | 603 | io = GvIO(gv); |
8990e307 | 604 | if (!io || !IoIFP(io)) |
a687059c LW |
605 | goto phooey; |
606 | ||
bee1dbe2 | 607 | #ifdef ULTRIX_STDIO_BOTCH |
8990e307 LW |
608 | if (feof(IoIFP(io))) |
609 | (void)fseek (IoIFP(io), 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 610 | #endif |
a687059c | 611 | |
8990e307 | 612 | return ftell(IoIFP(io)); |
a687059c LW |
613 | |
614 | phooey: | |
615 | if (dowarn) | |
616 | warn("tell() on unopened file"); | |
748a9306 | 617 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
618 | return -1L; |
619 | } | |
620 | ||
621 | bool | |
79072805 LW |
622 | do_seek(gv, pos, whence) |
623 | GV *gv; | |
a687059c LW |
624 | long pos; |
625 | int whence; | |
626 | { | |
79072805 | 627 | register IO *io; |
a687059c | 628 | |
79072805 | 629 | if (!gv) |
a687059c LW |
630 | goto nuts; |
631 | ||
79072805 | 632 | io = GvIO(gv); |
8990e307 | 633 | if (!io || !IoIFP(io)) |
a687059c LW |
634 | goto nuts; |
635 | ||
bee1dbe2 | 636 | #ifdef ULTRIX_STDIO_BOTCH |
8990e307 LW |
637 | if (feof(IoIFP(io))) |
638 | (void)fseek (IoIFP(io), 0L, 2); /* ultrix 1.2 workaround */ | |
bee1dbe2 | 639 | #endif |
a687059c | 640 | |
8990e307 | 641 | return fseek(IoIFP(io), pos, whence) >= 0; |
a687059c LW |
642 | |
643 | nuts: | |
644 | if (dowarn) | |
645 | warn("seek() on unopened file"); | |
748a9306 | 646 | SETERRNO(EBADF,RMS$_IFI); |
a687059c LW |
647 | return FALSE; |
648 | } | |
649 | ||
a0d0e21e | 650 | #if !defined(HAS_TRUNCATE) && !defined(HAS_CHSIZE) && defined(F_FREESP) |
c2ab57d4 | 651 | /* code courtesy of William Kucharski */ |
fe14fcc3 | 652 | #define HAS_CHSIZE |
6eb13c3b | 653 | |
79072805 LW |
654 | I32 chsize(fd, length) |
655 | I32 fd; /* file descriptor */ | |
85e6fe83 | 656 | Off_t length; /* length to set file to */ |
6eb13c3b LW |
657 | { |
658 | extern long lseek(); | |
659 | struct flock fl; | |
660 | struct stat filebuf; | |
661 | ||
a0d0e21e | 662 | if (Fstat(fd, &filebuf) < 0) |
6eb13c3b LW |
663 | return -1; |
664 | ||
665 | if (filebuf.st_size < length) { | |
666 | ||
667 | /* extend file length */ | |
668 | ||
669 | if ((lseek(fd, (length - 1), 0)) < 0) | |
670 | return -1; | |
671 | ||
672 | /* write a "0" byte */ | |
673 | ||
674 | if ((write(fd, "", 1)) != 1) | |
675 | return -1; | |
676 | } | |
677 | else { | |
678 | /* truncate length */ | |
679 | ||
680 | fl.l_whence = 0; | |
681 | fl.l_len = 0; | |
682 | fl.l_start = length; | |
a0d0e21e | 683 | fl.l_type = F_WRLCK; /* write lock on file space */ |
6eb13c3b LW |
684 | |
685 | /* | |
a0d0e21e | 686 | * This relies on the UNDOCUMENTED F_FREESP argument to |
6eb13c3b LW |
687 | * fcntl(2), which truncates the file so that it ends at the |
688 | * position indicated by fl.l_start. | |
689 | * | |
690 | * Will minor miracles never cease? | |
691 | */ | |
692 | ||
a0d0e21e | 693 | if (fcntl(fd, F_FREESP, &fl) < 0) |
6eb13c3b LW |
694 | return -1; |
695 | ||
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
a0d0e21e | 700 | #endif /* F_FREESP */ |
ff8e2863 | 701 | |
79072805 LW |
702 | I32 |
703 | looks_like_number(sv) | |
704 | SV *sv; | |
a687059c LW |
705 | { |
706 | register char *s; | |
707 | register char *send; | |
708 | ||
463ee0b2 LW |
709 | if (!SvPOK(sv)) { |
710 | STRLEN len; | |
711 | if (!SvPOKp(sv)) | |
712 | return TRUE; | |
713 | s = SvPV(sv, len); | |
714 | send = s + len; | |
715 | } | |
716 | else { | |
717 | s = SvPVX(sv); | |
718 | send = s + SvCUR(sv); | |
719 | } | |
99b89507 | 720 | while (isSPACE(*s)) |
a687059c LW |
721 | s++; |
722 | if (s >= send) | |
723 | return FALSE; | |
724 | if (*s == '+' || *s == '-') | |
725 | s++; | |
99b89507 | 726 | while (isDIGIT(*s)) |
a687059c LW |
727 | s++; |
728 | if (s == send) | |
729 | return TRUE; | |
730 | if (*s == '.') | |
731 | s++; | |
463ee0b2 | 732 | else if (s == SvPVX(sv)) |
a687059c | 733 | return FALSE; |
99b89507 | 734 | while (isDIGIT(*s)) |
a687059c LW |
735 | s++; |
736 | if (s == send) | |
737 | return TRUE; | |
738 | if (*s == 'e' || *s == 'E') { | |
739 | s++; | |
740 | if (*s == '+' || *s == '-') | |
741 | s++; | |
99b89507 | 742 | while (isDIGIT(*s)) |
a687059c LW |
743 | s++; |
744 | } | |
99b89507 | 745 | while (isSPACE(*s)) |
a687059c LW |
746 | s++; |
747 | if (s >= send) | |
748 | return TRUE; | |
749 | return FALSE; | |
750 | } | |
751 | ||
752 | bool | |
79072805 LW |
753 | do_print(sv,fp) |
754 | register SV *sv; | |
a687059c LW |
755 | FILE *fp; |
756 | { | |
757 | register char *tmps; | |
463ee0b2 | 758 | STRLEN len; |
a687059c | 759 | |
79072805 LW |
760 | /* assuming fp is checked earlier */ |
761 | if (!sv) | |
762 | return TRUE; | |
763 | if (ofmt) { | |
8990e307 | 764 | if (SvGMAGICAL(sv)) |
79072805 | 765 | mg_get(sv); |
463ee0b2 LW |
766 | if (SvIOK(sv) && SvIVX(sv) != 0) { |
767 | fprintf(fp, ofmt, (double)SvIVX(sv)); | |
79072805 LW |
768 | return !ferror(fp); |
769 | } | |
463ee0b2 | 770 | if ( (SvNOK(sv) && SvNVX(sv) != 0.0) |
79072805 | 771 | || (looks_like_number(sv) && sv_2nv(sv) != 0.0) ) { |
463ee0b2 | 772 | fprintf(fp, ofmt, SvNVX(sv)); |
79072805 LW |
773 | return !ferror(fp); |
774 | } | |
a687059c | 775 | } |
79072805 LW |
776 | switch (SvTYPE(sv)) { |
777 | case SVt_NULL: | |
8990e307 LW |
778 | if (dowarn) |
779 | warn(warn_uninit); | |
ff8e2863 | 780 | return TRUE; |
79072805 | 781 | case SVt_IV: |
a0d0e21e LW |
782 | if (SvIOK(sv)) { |
783 | if (SvGMAGICAL(sv)) | |
784 | mg_get(sv); | |
785 | fprintf(fp, "%ld", (long)SvIVX(sv)); | |
786 | return !ferror(fp); | |
787 | } | |
788 | /* FALL THROUGH */ | |
79072805 | 789 | default: |
463ee0b2 | 790 | tmps = SvPV(sv, len); |
79072805 | 791 | break; |
ff8e2863 | 792 | } |
a0d0e21e | 793 | if (len && (fwrite1(tmps,1,len,fp) == 0 || ferror(fp))) |
a687059c | 794 | return FALSE; |
79072805 | 795 | return TRUE; |
a687059c LW |
796 | } |
797 | ||
79072805 LW |
798 | I32 |
799 | my_stat(ARGS) | |
800 | dARGS | |
a687059c | 801 | { |
79072805 LW |
802 | dSP; |
803 | IO *io; | |
748a9306 | 804 | GV* tmpgv; |
79072805 | 805 | |
a0d0e21e | 806 | if (op->op_flags & OPf_REF) { |
79072805 | 807 | EXTEND(sp,1); |
748a9306 LW |
808 | tmpgv = cGVOP->op_gv; |
809 | do_fstat: | |
810 | io = GvIO(tmpgv); | |
8990e307 | 811 | if (io && IoIFP(io)) { |
748a9306 | 812 | statgv = tmpgv; |
79072805 LW |
813 | sv_setpv(statname,""); |
814 | laststype = OP_STAT; | |
a0d0e21e | 815 | return (laststatval = Fstat(fileno(IoIFP(io)), &statcache)); |
a687059c LW |
816 | } |
817 | else { | |
748a9306 | 818 | if (tmpgv == defgv) |
57ebbfd0 | 819 | return laststatval; |
a687059c LW |
820 | if (dowarn) |
821 | warn("Stat on unopened file <%s>", | |
748a9306 | 822 | GvENAME(tmpgv)); |
79072805 LW |
823 | statgv = Nullgv; |
824 | sv_setpv(statname,""); | |
57ebbfd0 | 825 | return (laststatval = -1); |
a687059c LW |
826 | } |
827 | } | |
828 | else { | |
748a9306 | 829 | SV* sv = POPs; |
79072805 | 830 | PUTBACK; |
748a9306 LW |
831 | if (SvTYPE(sv) == SVt_PVGV) { |
832 | tmpgv = (GV*)sv; | |
833 | goto do_fstat; | |
834 | } | |
835 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) { | |
836 | tmpgv = (GV*)SvRV(sv); | |
837 | goto do_fstat; | |
838 | } | |
839 | ||
79072805 | 840 | statgv = Nullgv; |
463ee0b2 | 841 | sv_setpv(statname,SvPV(sv, na)); |
79072805 | 842 | laststype = OP_STAT; |
a0d0e21e | 843 | laststatval = Stat(SvPV(sv, na),&statcache); |
463ee0b2 | 844 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
845 | warn(warn_nl, "stat"); |
846 | return laststatval; | |
a687059c LW |
847 | } |
848 | } | |
849 | ||
79072805 LW |
850 | I32 |
851 | my_lstat(ARGS) | |
852 | dARGS | |
c623bd54 | 853 | { |
79072805 LW |
854 | dSP; |
855 | SV *sv; | |
a0d0e21e | 856 | if (op->op_flags & OPf_REF) { |
79072805 LW |
857 | EXTEND(sp,1); |
858 | if (cGVOP->op_gv == defgv) { | |
859 | if (laststype != OP_LSTAT) | |
463ee0b2 | 860 | croak("The stat preceding -l _ wasn't an lstat"); |
fe14fcc3 LW |
861 | return laststatval; |
862 | } | |
463ee0b2 | 863 | croak("You can't use -l on a filehandle"); |
fe14fcc3 | 864 | } |
c623bd54 | 865 | |
79072805 LW |
866 | laststype = OP_LSTAT; |
867 | statgv = Nullgv; | |
868 | sv = POPs; | |
869 | PUTBACK; | |
463ee0b2 | 870 | sv_setpv(statname,SvPV(sv, na)); |
fe14fcc3 | 871 | #ifdef HAS_LSTAT |
463ee0b2 | 872 | laststatval = lstat(SvPV(sv, na),&statcache); |
c623bd54 | 873 | #else |
a0d0e21e | 874 | laststatval = Stat(SvPV(sv, na),&statcache); |
c623bd54 | 875 | #endif |
463ee0b2 | 876 | if (laststatval < 0 && dowarn && strchr(SvPV(sv, na), '\n')) |
bee1dbe2 LW |
877 | warn(warn_nl, "lstat"); |
878 | return laststatval; | |
c623bd54 LW |
879 | } |
880 | ||
a687059c | 881 | bool |
79072805 LW |
882 | do_aexec(really,mark,sp) |
883 | SV *really; | |
884 | register SV **mark; | |
885 | register SV **sp; | |
a687059c | 886 | { |
a687059c | 887 | register char **a; |
a687059c LW |
888 | char *tmps; |
889 | ||
79072805 LW |
890 | if (sp > mark) { |
891 | New(401,Argv, sp - mark + 1, char*); | |
bee1dbe2 | 892 | a = Argv; |
79072805 LW |
893 | while (++mark <= sp) { |
894 | if (*mark) | |
463ee0b2 | 895 | *a++ = SvPVx(*mark, na); |
a687059c LW |
896 | else |
897 | *a++ = ""; | |
898 | } | |
899 | *a = Nullch; | |
bee1dbe2 | 900 | if (*Argv[0] != '/') /* will execvp use PATH? */ |
79072805 | 901 | TAINT_ENV(); /* testing IFS here is overkill, probably */ |
463ee0b2 | 902 | if (really && *(tmps = SvPV(really, na))) |
bee1dbe2 | 903 | execvp(tmps,Argv); |
a687059c | 904 | else |
bee1dbe2 | 905 | execvp(Argv[0],Argv); |
a0d0e21e LW |
906 | if (dowarn) |
907 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 908 | } |
bee1dbe2 | 909 | do_execfree(); |
a687059c LW |
910 | return FALSE; |
911 | } | |
912 | ||
fe14fcc3 | 913 | void |
ff8e2863 LW |
914 | do_execfree() |
915 | { | |
916 | if (Argv) { | |
917 | Safefree(Argv); | |
918 | Argv = Null(char **); | |
919 | } | |
920 | if (Cmd) { | |
921 | Safefree(Cmd); | |
922 | Cmd = Nullch; | |
923 | } | |
924 | } | |
925 | ||
a687059c LW |
926 | bool |
927 | do_exec(cmd) | |
928 | char *cmd; | |
929 | { | |
930 | register char **a; | |
931 | register char *s; | |
a687059c LW |
932 | char flags[10]; |
933 | ||
748a9306 LW |
934 | while (*cmd && isSPACE(*cmd)) |
935 | cmd++; | |
936 | ||
a687059c LW |
937 | /* save an extra exec if possible */ |
938 | ||
bf38876a LW |
939 | #ifdef CSH |
940 | if (strnEQ(cmd,cshname,cshlen) && strnEQ(cmd+cshlen," -c",3)) { | |
a687059c | 941 | strcpy(flags,"-c"); |
bf38876a | 942 | s = cmd+cshlen+3; |
a687059c LW |
943 | if (*s == 'f') { |
944 | s++; | |
945 | strcat(flags,"f"); | |
946 | } | |
947 | if (*s == ' ') | |
948 | s++; | |
949 | if (*s++ == '\'') { | |
950 | char *ncmd = s; | |
951 | ||
952 | while (*s) | |
953 | s++; | |
954 | if (s[-1] == '\n') | |
955 | *--s = '\0'; | |
956 | if (s[-1] == '\'') { | |
957 | *--s = '\0'; | |
bf38876a | 958 | execl(cshname,"csh", flags,ncmd,(char*)0); |
a687059c LW |
959 | *s = '\''; |
960 | return FALSE; | |
961 | } | |
962 | } | |
963 | } | |
bf38876a | 964 | #endif /* CSH */ |
a687059c LW |
965 | |
966 | /* see if there are shell metacharacters in it */ | |
967 | ||
748a9306 LW |
968 | if (*cmd == '.' && isSPACE(cmd[1])) |
969 | goto doshell; | |
970 | ||
971 | if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4])) | |
972 | goto doshell; | |
973 | ||
99b89507 | 974 | for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */ |
63f2c1e1 LW |
975 | if (*s == '=') |
976 | goto doshell; | |
748a9306 | 977 | |
a687059c | 978 | for (s = cmd; *s; s++) { |
93a17b20 | 979 | if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) { |
a687059c LW |
980 | if (*s == '\n' && !s[1]) { |
981 | *s = '\0'; | |
982 | break; | |
983 | } | |
984 | doshell: | |
985 | execl("/bin/sh","sh","-c",cmd,(char*)0); | |
986 | return FALSE; | |
987 | } | |
988 | } | |
748a9306 | 989 | |
ff8e2863 | 990 | New(402,Argv, (s - cmd) / 2 + 2, char*); |
a0d0e21e | 991 | Cmd = savepvn(cmd, s-cmd); |
ff8e2863 LW |
992 | a = Argv; |
993 | for (s = Cmd; *s;) { | |
99b89507 | 994 | while (*s && isSPACE(*s)) s++; |
a687059c LW |
995 | if (*s) |
996 | *(a++) = s; | |
99b89507 | 997 | while (*s && !isSPACE(*s)) s++; |
a687059c LW |
998 | if (*s) |
999 | *s++ = '\0'; | |
1000 | } | |
1001 | *a = Nullch; | |
ff8e2863 LW |
1002 | if (Argv[0]) { |
1003 | execvp(Argv[0],Argv); | |
b1248f16 | 1004 | if (errno == ENOEXEC) { /* for system V NIH syndrome */ |
ff8e2863 | 1005 | do_execfree(); |
a687059c | 1006 | goto doshell; |
b1248f16 | 1007 | } |
a0d0e21e LW |
1008 | if (dowarn) |
1009 | warn("Can't exec \"%s\": %s", Argv[0], Strerror(errno)); | |
a687059c | 1010 | } |
ff8e2863 | 1011 | do_execfree(); |
a687059c LW |
1012 | return FALSE; |
1013 | } | |
1014 | ||
79072805 LW |
1015 | I32 |
1016 | apply(type,mark,sp) | |
1017 | I32 type; | |
1018 | register SV **mark; | |
1019 | register SV **sp; | |
a687059c | 1020 | { |
79072805 LW |
1021 | register I32 val; |
1022 | register I32 val2; | |
1023 | register I32 tot = 0; | |
a687059c | 1024 | char *s; |
79072805 | 1025 | SV **oldmark = mark; |
a687059c | 1026 | |
463ee0b2 LW |
1027 | if (tainting) { |
1028 | while (++mark <= sp) { | |
748a9306 LW |
1029 | MAGIC *mg; |
1030 | if (SvMAGICAL(*mark) && (mg = mg_find(*mark, 't')) && mg->mg_len & 1) | |
463ee0b2 LW |
1031 | tainted = TRUE; |
1032 | } | |
1033 | mark = oldmark; | |
1034 | } | |
a687059c | 1035 | switch (type) { |
79072805 LW |
1036 | case OP_CHMOD: |
1037 | TAINT_PROPER("chmod"); | |
1038 | if (++mark <= sp) { | |
1039 | tot = sp - mark; | |
463ee0b2 | 1040 | val = SvIVx(*mark); |
79072805 | 1041 | while (++mark <= sp) { |
463ee0b2 | 1042 | if (chmod(SvPVx(*mark, na),val)) |
a687059c LW |
1043 | tot--; |
1044 | } | |
1045 | } | |
1046 | break; | |
fe14fcc3 | 1047 | #ifdef HAS_CHOWN |
79072805 LW |
1048 | case OP_CHOWN: |
1049 | TAINT_PROPER("chown"); | |
1050 | if (sp - mark > 2) { | |
463ee0b2 LW |
1051 | val = SvIVx(*++mark); |
1052 | val2 = SvIVx(*++mark); | |
a0d0e21e | 1053 | tot = sp - mark; |
79072805 | 1054 | while (++mark <= sp) { |
463ee0b2 | 1055 | if (chown(SvPVx(*mark, na),val,val2)) |
a687059c LW |
1056 | tot--; |
1057 | } | |
1058 | } | |
1059 | break; | |
b1248f16 | 1060 | #endif |
fe14fcc3 | 1061 | #ifdef HAS_KILL |
79072805 LW |
1062 | case OP_KILL: |
1063 | TAINT_PROPER("kill"); | |
463ee0b2 | 1064 | s = SvPVx(*++mark, na); |
79072805 LW |
1065 | tot = sp - mark; |
1066 | if (isUPPER(*s)) { | |
1067 | if (*s == 'S' && s[1] == 'I' && s[2] == 'G') | |
1068 | s += 3; | |
1069 | if (!(val = whichsig(s))) | |
463ee0b2 | 1070 | croak("Unrecognized signal name \"%s\"",s); |
79072805 LW |
1071 | } |
1072 | else | |
463ee0b2 | 1073 | val = SvIVx(*mark); |
79072805 LW |
1074 | if (val < 0) { |
1075 | val = -val; | |
1076 | while (++mark <= sp) { | |
463ee0b2 | 1077 | I32 proc = SvIVx(*mark); |
fe14fcc3 | 1078 | #ifdef HAS_KILLPG |
79072805 | 1079 | if (killpg(proc,val)) /* BSD */ |
a687059c | 1080 | #else |
79072805 | 1081 | if (kill(-proc,val)) /* SYSV */ |
a687059c | 1082 | #endif |
79072805 | 1083 | tot--; |
a687059c | 1084 | } |
79072805 LW |
1085 | } |
1086 | else { | |
1087 | while (++mark <= sp) { | |
463ee0b2 | 1088 | if (kill(SvIVx(*mark),val)) |
79072805 | 1089 | tot--; |
a687059c LW |
1090 | } |
1091 | } | |
1092 | break; | |
b1248f16 | 1093 | #endif |
79072805 LW |
1094 | case OP_UNLINK: |
1095 | TAINT_PROPER("unlink"); | |
1096 | tot = sp - mark; | |
1097 | while (++mark <= sp) { | |
463ee0b2 | 1098 | s = SvPVx(*mark, na); |
a687059c LW |
1099 | if (euid || unsafe) { |
1100 | if (UNLINK(s)) | |
1101 | tot--; | |
1102 | } | |
1103 | else { /* don't let root wipe out directories without -U */ | |
fe14fcc3 | 1104 | #ifdef HAS_LSTAT |
c623bd54 | 1105 | if (lstat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1106 | #else |
a0d0e21e | 1107 | if (Stat(s,&statbuf) < 0 || S_ISDIR(statbuf.st_mode)) |
a687059c | 1108 | #endif |
a687059c LW |
1109 | tot--; |
1110 | else { | |
1111 | if (UNLINK(s)) | |
1112 | tot--; | |
1113 | } | |
1114 | } | |
1115 | } | |
1116 | break; | |
a0d0e21e | 1117 | #ifdef HAS_UTIME |
79072805 LW |
1118 | case OP_UTIME: |
1119 | TAINT_PROPER("utime"); | |
1120 | if (sp - mark > 2) { | |
748a9306 | 1121 | #if defined(I_UTIME) || defined(VMS) |
663a0e37 LW |
1122 | struct utimbuf utbuf; |
1123 | #else | |
a687059c | 1124 | struct { |
663a0e37 LW |
1125 | long actime; |
1126 | long modtime; | |
a687059c | 1127 | } utbuf; |
663a0e37 | 1128 | #endif |
a687059c | 1129 | |
afd9f252 | 1130 | Zero(&utbuf, sizeof utbuf, char); |
463ee0b2 LW |
1131 | utbuf.actime = SvIVx(*++mark); /* time accessed */ |
1132 | utbuf.modtime = SvIVx(*++mark); /* time modified */ | |
79072805 LW |
1133 | tot = sp - mark; |
1134 | while (++mark <= sp) { | |
463ee0b2 | 1135 | if (utime(SvPVx(*mark, na),&utbuf)) |
a687059c LW |
1136 | tot--; |
1137 | } | |
a687059c LW |
1138 | } |
1139 | else | |
79072805 | 1140 | tot = 0; |
a687059c | 1141 | break; |
a0d0e21e | 1142 | #endif |
a687059c LW |
1143 | } |
1144 | return tot; | |
1145 | } | |
1146 | ||
1147 | /* Do the permissions allow some operation? Assumes statcache already set. */ | |
a0d0e21e | 1148 | #ifndef VMS /* VMS' cando is in vms.c */ |
79072805 | 1149 | I32 |
a687059c | 1150 | cando(bit, effective, statbufp) |
79072805 LW |
1151 | I32 bit; |
1152 | I32 effective; | |
a687059c LW |
1153 | register struct stat *statbufp; |
1154 | { | |
bee1dbe2 | 1155 | #ifdef DOSISH |
fe14fcc3 LW |
1156 | /* [Comments and code from Len Reed] |
1157 | * MS-DOS "user" is similar to UNIX's "superuser," but can't write | |
1158 | * to write-protected files. The execute permission bit is set | |
1159 | * by the Miscrosoft C library stat() function for the following: | |
1160 | * .exe files | |
1161 | * .com files | |
1162 | * .bat files | |
1163 | * directories | |
1164 | * All files and directories are readable. | |
1165 | * Directories and special files, e.g. "CON", cannot be | |
1166 | * write-protected. | |
1167 | * [Comment by Tom Dinger -- a directory can have the write-protect | |
1168 | * bit set in the file system, but DOS permits changes to | |
1169 | * the directory anyway. In addition, all bets are off | |
1170 | * here for networked software, such as Novell and | |
1171 | * Sun's PC-NFS.] | |
1172 | */ | |
1173 | ||
bee1dbe2 LW |
1174 | /* Atari stat() does pretty much the same thing. we set x_bit_set_in_stat |
1175 | * too so it will actually look into the files for magic numbers | |
1176 | */ | |
fe14fcc3 LW |
1177 | return (bit & statbufp->st_mode) ? TRUE : FALSE; |
1178 | ||
1179 | #else /* ! MSDOS */ | |
a687059c | 1180 | if ((effective ? euid : uid) == 0) { /* root is special */ |
c623bd54 LW |
1181 | if (bit == S_IXUSR) { |
1182 | if (statbufp->st_mode & 0111 || S_ISDIR(statbufp->st_mode)) | |
a687059c LW |
1183 | return TRUE; |
1184 | } | |
1185 | else | |
1186 | return TRUE; /* root reads and writes anything */ | |
1187 | return FALSE; | |
1188 | } | |
1189 | if (statbufp->st_uid == (effective ? euid : uid) ) { | |
1190 | if (statbufp->st_mode & bit) | |
1191 | return TRUE; /* ok as "user" */ | |
1192 | } | |
79072805 | 1193 | else if (ingroup((I32)statbufp->st_gid,effective)) { |
a687059c LW |
1194 | if (statbufp->st_mode & bit >> 3) |
1195 | return TRUE; /* ok as "group" */ | |
1196 | } | |
1197 | else if (statbufp->st_mode & bit >> 6) | |
1198 | return TRUE; /* ok as "other" */ | |
1199 | return FALSE; | |
fe14fcc3 | 1200 | #endif /* ! MSDOS */ |
a687059c | 1201 | } |
a0d0e21e | 1202 | #endif /* ! VMS */ |
a687059c | 1203 | |
79072805 | 1204 | I32 |
a687059c | 1205 | ingroup(testgid,effective) |
79072805 LW |
1206 | I32 testgid; |
1207 | I32 effective; | |
a687059c LW |
1208 | { |
1209 | if (testgid == (effective ? egid : gid)) | |
1210 | return TRUE; | |
fe14fcc3 | 1211 | #ifdef HAS_GETGROUPS |
a687059c LW |
1212 | #ifndef NGROUPS |
1213 | #define NGROUPS 32 | |
1214 | #endif | |
1215 | { | |
a0d0e21e | 1216 | Groups_t gary[NGROUPS]; |
79072805 | 1217 | I32 anum; |
a687059c LW |
1218 | |
1219 | anum = getgroups(NGROUPS,gary); | |
1220 | while (--anum >= 0) | |
1221 | if (gary[anum] == testgid) | |
1222 | return TRUE; | |
1223 | } | |
1224 | #endif | |
1225 | return FALSE; | |
1226 | } | |
c2ab57d4 | 1227 | |
fe14fcc3 | 1228 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
c2ab57d4 | 1229 | |
79072805 LW |
1230 | I32 |
1231 | do_ipcget(optype, mark, sp) | |
1232 | I32 optype; | |
1233 | SV **mark; | |
1234 | SV **sp; | |
c2ab57d4 | 1235 | { |
c2ab57d4 | 1236 | key_t key; |
79072805 | 1237 | I32 n, flags; |
c2ab57d4 | 1238 | |
463ee0b2 LW |
1239 | key = (key_t)SvNVx(*++mark); |
1240 | n = (optype == OP_MSGGET) ? 0 : SvIVx(*++mark); | |
1241 | flags = SvIVx(*++mark); | |
748a9306 | 1242 | SETERRNO(0,0); |
c2ab57d4 LW |
1243 | switch (optype) |
1244 | { | |
fe14fcc3 | 1245 | #ifdef HAS_MSG |
79072805 | 1246 | case OP_MSGGET: |
c2ab57d4 | 1247 | return msgget(key, flags); |
e5d73d77 | 1248 | #endif |
fe14fcc3 | 1249 | #ifdef HAS_SEM |
79072805 | 1250 | case OP_SEMGET: |
c2ab57d4 | 1251 | return semget(key, n, flags); |
e5d73d77 | 1252 | #endif |
fe14fcc3 | 1253 | #ifdef HAS_SHM |
79072805 | 1254 | case OP_SHMGET: |
c2ab57d4 | 1255 | return shmget(key, n, flags); |
e5d73d77 | 1256 | #endif |
fe14fcc3 | 1257 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1258 | default: |
463ee0b2 | 1259 | croak("%s not implemented", op_name[optype]); |
e5d73d77 | 1260 | #endif |
c2ab57d4 LW |
1261 | } |
1262 | return -1; /* should never happen */ | |
1263 | } | |
1264 | ||
79072805 LW |
1265 | I32 |
1266 | do_ipcctl(optype, mark, sp) | |
1267 | I32 optype; | |
1268 | SV **mark; | |
1269 | SV **sp; | |
c2ab57d4 | 1270 | { |
79072805 | 1271 | SV *astr; |
c2ab57d4 | 1272 | char *a; |
a0d0e21e LW |
1273 | I32 id, n, cmd, infosize, getinfo; |
1274 | I32 ret = -1; | |
c2ab57d4 | 1275 | |
463ee0b2 LW |
1276 | id = SvIVx(*++mark); |
1277 | n = (optype == OP_SEMCTL) ? SvIVx(*++mark) : 0; | |
1278 | cmd = SvIVx(*++mark); | |
79072805 | 1279 | astr = *++mark; |
c2ab57d4 LW |
1280 | infosize = 0; |
1281 | getinfo = (cmd == IPC_STAT); | |
1282 | ||
1283 | switch (optype) | |
1284 | { | |
fe14fcc3 | 1285 | #ifdef HAS_MSG |
79072805 | 1286 | case OP_MSGCTL: |
c2ab57d4 LW |
1287 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1288 | infosize = sizeof(struct msqid_ds); | |
1289 | break; | |
e5d73d77 | 1290 | #endif |
fe14fcc3 | 1291 | #ifdef HAS_SHM |
79072805 | 1292 | case OP_SHMCTL: |
c2ab57d4 LW |
1293 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1294 | infosize = sizeof(struct shmid_ds); | |
1295 | break; | |
e5d73d77 | 1296 | #endif |
fe14fcc3 | 1297 | #ifdef HAS_SEM |
79072805 | 1298 | case OP_SEMCTL: |
c2ab57d4 LW |
1299 | if (cmd == IPC_STAT || cmd == IPC_SET) |
1300 | infosize = sizeof(struct semid_ds); | |
1301 | else if (cmd == GETALL || cmd == SETALL) | |
1302 | { | |
1303 | struct semid_ds semds; | |
1304 | if (semctl(id, 0, IPC_STAT, &semds) == -1) | |
1305 | return -1; | |
1306 | getinfo = (cmd == GETALL); | |
6e21c824 LW |
1307 | infosize = semds.sem_nsems * sizeof(short); |
1308 | /* "short" is technically wrong but much more portable | |
1309 | than guessing about u_?short(_t)? */ | |
c2ab57d4 LW |
1310 | } |
1311 | break; | |
e5d73d77 | 1312 | #endif |
fe14fcc3 | 1313 | #if !defined(HAS_MSG) || !defined(HAS_SEM) || !defined(HAS_SHM) |
e5d73d77 | 1314 | default: |
463ee0b2 | 1315 | croak("%s not implemented", op_name[optype]); |
e5d73d77 | 1316 | #endif |
c2ab57d4 LW |
1317 | } |
1318 | ||
1319 | if (infosize) | |
1320 | { | |
a0d0e21e | 1321 | STRLEN len; |
c2ab57d4 LW |
1322 | if (getinfo) |
1323 | { | |
a0d0e21e LW |
1324 | SvPV_force(astr, len); |
1325 | a = SvGROW(astr, infosize+1); | |
c2ab57d4 LW |
1326 | } |
1327 | else | |
1328 | { | |
463ee0b2 LW |
1329 | a = SvPV(astr, len); |
1330 | if (len != infosize) | |
1331 | croak("Bad arg length for %s, is %d, should be %d", | |
1332 | op_name[optype], len, infosize); | |
c2ab57d4 LW |
1333 | } |
1334 | } | |
1335 | else | |
1336 | { | |
463ee0b2 | 1337 | I32 i = SvIV(astr); |
c2ab57d4 LW |
1338 | a = (char *)i; /* ouch */ |
1339 | } | |
748a9306 | 1340 | SETERRNO(0,0); |
c2ab57d4 LW |
1341 | switch (optype) |
1342 | { | |
fe14fcc3 | 1343 | #ifdef HAS_MSG |
79072805 | 1344 | case OP_MSGCTL: |
bee1dbe2 | 1345 | ret = msgctl(id, cmd, (struct msqid_ds *)a); |
c2ab57d4 | 1346 | break; |
e5d73d77 | 1347 | #endif |
fe14fcc3 | 1348 | #ifdef HAS_SEM |
79072805 LW |
1349 | case OP_SEMCTL: |
1350 | ret = semctl(id, n, cmd, (struct semid_ds *)a); | |
c2ab57d4 | 1351 | break; |
e5d73d77 | 1352 | #endif |
fe14fcc3 | 1353 | #ifdef HAS_SHM |
79072805 | 1354 | case OP_SHMCTL: |
bee1dbe2 | 1355 | ret = shmctl(id, cmd, (struct shmid_ds *)a); |
c2ab57d4 | 1356 | break; |
e5d73d77 | 1357 | #endif |
c2ab57d4 LW |
1358 | } |
1359 | if (getinfo && ret >= 0) { | |
79072805 LW |
1360 | SvCUR_set(astr, infosize); |
1361 | *SvEND(astr) = '\0'; | |
a0d0e21e | 1362 | SvSETMAGIC(astr); |
c2ab57d4 LW |
1363 | } |
1364 | return ret; | |
1365 | } | |
1366 | ||
79072805 LW |
1367 | I32 |
1368 | do_msgsnd(mark, sp) | |
1369 | SV **mark; | |
1370 | SV **sp; | |
c2ab57d4 | 1371 | { |
fe14fcc3 | 1372 | #ifdef HAS_MSG |
79072805 | 1373 | SV *mstr; |
c2ab57d4 | 1374 | char *mbuf; |
79072805 | 1375 | I32 id, msize, flags; |
463ee0b2 | 1376 | STRLEN len; |
c2ab57d4 | 1377 | |
463ee0b2 | 1378 | id = SvIVx(*++mark); |
79072805 | 1379 | mstr = *++mark; |
463ee0b2 LW |
1380 | flags = SvIVx(*++mark); |
1381 | mbuf = SvPV(mstr, len); | |
1382 | if ((msize = len - sizeof(long)) < 0) | |
1383 | croak("Arg too short for msgsnd"); | |
748a9306 | 1384 | SETERRNO(0,0); |
bee1dbe2 | 1385 | return msgsnd(id, (struct msgbuf *)mbuf, msize, flags); |
e5d73d77 | 1386 | #else |
463ee0b2 | 1387 | croak("msgsnd not implemented"); |
e5d73d77 | 1388 | #endif |
c2ab57d4 LW |
1389 | } |
1390 | ||
79072805 LW |
1391 | I32 |
1392 | do_msgrcv(mark, sp) | |
1393 | SV **mark; | |
1394 | SV **sp; | |
c2ab57d4 | 1395 | { |
fe14fcc3 | 1396 | #ifdef HAS_MSG |
79072805 | 1397 | SV *mstr; |
c2ab57d4 LW |
1398 | char *mbuf; |
1399 | long mtype; | |
79072805 | 1400 | I32 id, msize, flags, ret; |
463ee0b2 | 1401 | STRLEN len; |
79072805 | 1402 | |
463ee0b2 | 1403 | id = SvIVx(*++mark); |
79072805 | 1404 | mstr = *++mark; |
463ee0b2 LW |
1405 | msize = SvIVx(*++mark); |
1406 | mtype = (long)SvIVx(*++mark); | |
1407 | flags = SvIVx(*++mark); | |
ed6116ce LW |
1408 | if (SvTHINKFIRST(mstr)) { |
1409 | if (SvREADONLY(mstr)) | |
1410 | croak("Can't msgrcv to readonly var"); | |
1411 | if (SvROK(mstr)) | |
1412 | sv_unref(mstr); | |
1413 | } | |
a0d0e21e LW |
1414 | SvPV_force(mstr, len); |
1415 | mbuf = SvGROW(mstr, sizeof(long)+msize+1); | |
1416 | ||
748a9306 | 1417 | SETERRNO(0,0); |
bee1dbe2 | 1418 | ret = msgrcv(id, (struct msgbuf *)mbuf, msize, mtype, flags); |
c2ab57d4 | 1419 | if (ret >= 0) { |
79072805 LW |
1420 | SvCUR_set(mstr, sizeof(long)+ret); |
1421 | *SvEND(mstr) = '\0'; | |
c2ab57d4 LW |
1422 | } |
1423 | return ret; | |
e5d73d77 | 1424 | #else |
463ee0b2 | 1425 | croak("msgrcv not implemented"); |
e5d73d77 | 1426 | #endif |
c2ab57d4 LW |
1427 | } |
1428 | ||
79072805 LW |
1429 | I32 |
1430 | do_semop(mark, sp) | |
1431 | SV **mark; | |
1432 | SV **sp; | |
c2ab57d4 | 1433 | { |
fe14fcc3 | 1434 | #ifdef HAS_SEM |
79072805 | 1435 | SV *opstr; |
c2ab57d4 | 1436 | char *opbuf; |
463ee0b2 LW |
1437 | I32 id; |
1438 | STRLEN opsize; | |
c2ab57d4 | 1439 | |
463ee0b2 | 1440 | id = SvIVx(*++mark); |
79072805 | 1441 | opstr = *++mark; |
463ee0b2 | 1442 | opbuf = SvPV(opstr, opsize); |
c2ab57d4 LW |
1443 | if (opsize < sizeof(struct sembuf) |
1444 | || (opsize % sizeof(struct sembuf)) != 0) { | |
748a9306 | 1445 | SETERRNO(EINVAL,LIB$_INVARG); |
c2ab57d4 LW |
1446 | return -1; |
1447 | } | |
748a9306 | 1448 | SETERRNO(0,0); |
6e21c824 | 1449 | return semop(id, (struct sembuf *)opbuf, opsize/sizeof(struct sembuf)); |
e5d73d77 | 1450 | #else |
463ee0b2 | 1451 | croak("semop not implemented"); |
e5d73d77 | 1452 | #endif |
c2ab57d4 LW |
1453 | } |
1454 | ||
79072805 LW |
1455 | I32 |
1456 | do_shmio(optype, mark, sp) | |
1457 | I32 optype; | |
1458 | SV **mark; | |
1459 | SV **sp; | |
c2ab57d4 | 1460 | { |
fe14fcc3 | 1461 | #ifdef HAS_SHM |
79072805 | 1462 | SV *mstr; |
c2ab57d4 | 1463 | char *mbuf, *shm; |
79072805 | 1464 | I32 id, mpos, msize; |
463ee0b2 | 1465 | STRLEN len; |
c2ab57d4 | 1466 | struct shmid_ds shmds; |
c2ab57d4 | 1467 | |
463ee0b2 | 1468 | id = SvIVx(*++mark); |
79072805 | 1469 | mstr = *++mark; |
463ee0b2 LW |
1470 | mpos = SvIVx(*++mark); |
1471 | msize = SvIVx(*++mark); | |
748a9306 | 1472 | SETERRNO(0,0); |
c2ab57d4 LW |
1473 | if (shmctl(id, IPC_STAT, &shmds) == -1) |
1474 | return -1; | |
1475 | if (mpos < 0 || msize < 0 || mpos + msize > shmds.shm_segsz) { | |
748a9306 | 1476 | SETERRNO(EFAULT,SS$_ACCVIO); /* can't do as caller requested */ |
c2ab57d4 LW |
1477 | return -1; |
1478 | } | |
a0d0e21e | 1479 | shm = (Shmat_t)shmat(id, (char*)NULL, (optype == OP_SHMREAD) ? SHM_RDONLY : 0); |
c2ab57d4 LW |
1480 | if (shm == (char *)-1) /* I hate System V IPC, I really do */ |
1481 | return -1; | |
79072805 | 1482 | if (optype == OP_SHMREAD) { |
a0d0e21e LW |
1483 | SvPV_force(mstr, len); |
1484 | mbuf = SvGROW(mstr, msize+1); | |
1485 | ||
bee1dbe2 | 1486 | Copy(shm + mpos, mbuf, msize, char); |
79072805 LW |
1487 | SvCUR_set(mstr, msize); |
1488 | *SvEND(mstr) = '\0'; | |
a0d0e21e | 1489 | SvSETMAGIC(mstr); |
c2ab57d4 LW |
1490 | } |
1491 | else { | |
79072805 | 1492 | I32 n; |
c2ab57d4 | 1493 | |
a0d0e21e | 1494 | mbuf = SvPV(mstr, len); |
463ee0b2 | 1495 | if ((n = len) > msize) |
c2ab57d4 | 1496 | n = msize; |
bee1dbe2 | 1497 | Copy(mbuf, shm + mpos, n, char); |
c2ab57d4 | 1498 | if (n < msize) |
bee1dbe2 | 1499 | memzero(shm + mpos + n, msize - n); |
c2ab57d4 LW |
1500 | } |
1501 | return shmdt(shm); | |
e5d73d77 | 1502 | #else |
463ee0b2 | 1503 | croak("shm I/O not implemented"); |
e5d73d77 | 1504 | #endif |
c2ab57d4 LW |
1505 | } |
1506 | ||
fe14fcc3 | 1507 | #endif /* SYSV IPC */ |