Commit | Line | Data |
---|---|---|
20188a90 | 1 | char rcsid[] = "$Header: perly.c,v 3.0.1.8 90/10/16 10:14:20 lwall Locked $\nPatch level: ###\n"; |
8d063cd8 | 2 | /* |
a687059c LW |
3 | * Copyright (c) 1989, Larry Wall |
4 | * | |
5 | * You may distribute under the terms of the GNU General Public License | |
6 | * as specified in the README file that comes with the perl 3.0 kit. | |
7 | * | |
8d063cd8 | 8 | * $Log: perly.c,v $ |
20188a90 LW |
9 | * Revision 3.0.1.8 90/10/16 10:14:20 lwall |
10 | * patch29: *foo now prints as *package'foo | |
11 | * patch29: added waitpid | |
12 | * patch29: the debugger now understands packages and evals | |
13 | * patch29: added -M, -A and -C | |
14 | * patch29: -w sometimes printed spurious warnings about ARGV and ENV | |
15 | * patch29: require "./foo" didn't work right | |
16 | * patch29: require error messages referred to wrong file | |
17 | * | |
6eb13c3b LW |
18 | * Revision 3.0.1.7 90/08/13 22:22:22 lwall |
19 | * patch28: defined(@array) and defined(%array) didn't work right | |
20 | * | |
33b78306 LW |
21 | * Revision 3.0.1.6 90/08/09 04:55:50 lwall |
22 | * patch19: added -x switch to extract script from input trash | |
23 | * patch19: Added -c switch to do compilation only | |
24 | * patch19: added numeric interpretation of $] | |
25 | * patch19: added require operator | |
26 | * patch19: $0, %ENV, @ARGV were wrong in dumped script | |
27 | * patch19: . is now explicitly in @INC (and last) | |
28 | * | |
0f85fab0 LW |
29 | * Revision 3.0.1.5 90/03/27 16:20:57 lwall |
30 | * patch16: MSDOS support | |
31 | * patch16: do FILE inside eval blows up | |
32 | * | |
ac58e20f LW |
33 | * Revision 3.0.1.4 90/02/28 18:06:41 lwall |
34 | * patch9: perl can now start up other interpreters scripts | |
35 | * patch9: nested evals clobbered their longjmp environment | |
36 | * patch9: eval could mistakenly return undef in array context | |
37 | * | |
663a0e37 LW |
38 | * Revision 3.0.1.3 89/12/21 20:15:41 lwall |
39 | * patch7: ANSI strerror() is now supported | |
40 | * patch7: errno may now be a macro with an lvalue | |
41 | * patch7: allowed setuid scripts to have a space after #! | |
42 | * | |
ffed7fef LW |
43 | * Revision 3.0.1.2 89/11/17 15:34:42 lwall |
44 | * patch5: fixed possible confusion about current effective gid | |
45 | * | |
ae986130 LW |
46 | * Revision 3.0.1.1 89/11/11 04:50:04 lwall |
47 | * patch2: moved yydebug to where its type didn't matter | |
48 | * | |
a687059c LW |
49 | * Revision 3.0 89/10/18 15:22:21 lwall |
50 | * 3.0 baseline | |
8d063cd8 LW |
51 | * |
52 | */ | |
53 | ||
378cc40b LW |
54 | #include "EXTERN.h" |
55 | #include "perl.h" | |
56 | #include "perly.h" | |
20188a90 LW |
57 | #ifdef MSDOS |
58 | #include "patchlev.h" | |
59 | #else | |
a687059c | 60 | #include "patchlevel.h" |
20188a90 | 61 | #endif |
378cc40b | 62 | |
a687059c LW |
63 | #ifdef IAMSUID |
64 | #ifndef DOSUID | |
65 | #define DOSUID | |
66 | #endif | |
67 | #endif | |
378cc40b | 68 | |
a687059c LW |
69 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
70 | #ifdef DOSUID | |
71 | #undef DOSUID | |
72 | #endif | |
73 | #endif | |
8d063cd8 | 74 | |
33b78306 LW |
75 | static char* moreswitches(); |
76 | static char* cddir; | |
77 | extern char **environ; | |
78 | static bool minus_c; | |
79 | ||
8d063cd8 LW |
80 | main(argc,argv,env) |
81 | register int argc; | |
82 | register char **argv; | |
83 | register char **env; | |
84 | { | |
85 | register STR *str; | |
86 | register char *s; | |
378cc40b LW |
87 | char *index(), *strcpy(), *getenv(); |
88 | bool dosearch = FALSE; | |
a687059c | 89 | #ifdef DOSUID |
13281fa4 LW |
90 | char *validarg = ""; |
91 | #endif | |
8d063cd8 | 92 | |
a687059c LW |
93 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
94 | #ifdef IAMSUID | |
95 | #undef IAMSUID | |
96 | fatal("suidperl is no longer needed since the kernel can now execute\n\ | |
97 | setuid perl scripts securely.\n"); | |
98 | #endif | |
99 | #endif | |
100 | ||
ac58e20f LW |
101 | origargv = argv; |
102 | origargc = argc; | |
378cc40b LW |
103 | uid = (int)getuid(); |
104 | euid = (int)geteuid(); | |
a687059c LW |
105 | gid = (int)getgid(); |
106 | egid = (int)getegid(); | |
0f85fab0 LW |
107 | #ifdef MSDOS |
108 | /* | |
109 | * There is no way we can refer to them from Perl so close them to save | |
110 | * space. The other alternative would be to provide STDAUX and STDPRN | |
111 | * filehandles. | |
112 | */ | |
113 | (void)fclose(stdaux); | |
114 | (void)fclose(stdprn); | |
115 | #endif | |
a687059c | 116 | if (do_undump) { |
33b78306 | 117 | origfilename = savestr(argv[0]); |
a687059c | 118 | do_undump = 0; |
ac58e20f | 119 | loop_ptr = -1; /* start label stack again */ |
a687059c LW |
120 | goto just_doit; |
121 | } | |
122 | (void)sprintf(index(rcsid,'#'), "%d\n", PATCHLEVEL); | |
123 | linestr = Str_new(65,80); | |
378cc40b | 124 | str_nset(linestr,"",0); |
a687059c LW |
125 | str = str_make("",0); /* first used for -I flags */ |
126 | curstash = defstash = hnew(0); | |
127 | curstname = str_make("main",4); | |
128 | stab_xhash(stabent("_main",TRUE)) = defstash; | |
20188a90 | 129 | defstash->tbl_name = "main"; |
33b78306 | 130 | incstab = hadd(aadd(stabent("INC",TRUE))); |
a687059c | 131 | incstab->str_pok |= SP_MULTI; |
33b78306 | 132 | for (argc--,argv++; argc > 0; argc--,argv++) { |
8d063cd8 LW |
133 | if (argv[0][0] != '-' || !argv[0][1]) |
134 | break; | |
13281fa4 LW |
135 | #ifdef DOSUID |
136 | if (*validarg) | |
137 | validarg = " PHOOEY "; | |
138 | else | |
139 | validarg = argv[0]; | |
140 | #endif | |
141 | s = argv[0]+1; | |
8d063cd8 | 142 | reswitch: |
13281fa4 | 143 | switch (*s) { |
378cc40b | 144 | case 'a': |
33b78306 | 145 | case 'c': |
a687059c | 146 | case 'd': |
8d063cd8 | 147 | case 'D': |
33b78306 LW |
148 | case 'i': |
149 | case 'n': | |
150 | case 'p': | |
151 | case 'u': | |
152 | case 'U': | |
153 | case 'v': | |
154 | case 'w': | |
155 | if (s = moreswitches(s)) | |
156 | goto reswitch; | |
8d063cd8 | 157 | break; |
33b78306 | 158 | |
8d063cd8 | 159 | case 'e': |
a687059c LW |
160 | #ifdef TAINT |
161 | if (euid != uid || egid != gid) | |
162 | fatal("No -e allowed in setuid scripts"); | |
163 | #endif | |
8d063cd8 | 164 | if (!e_fp) { |
a687059c LW |
165 | e_tmpname = savestr(TMPPATH); |
166 | (void)mktemp(e_tmpname); | |
8d063cd8 | 167 | e_fp = fopen(e_tmpname,"w"); |
33b78306 LW |
168 | if (!e_fp) |
169 | fatal("Cannot open temporary file"); | |
8d063cd8 | 170 | } |
33b78306 | 171 | if (argv[1]) { |
8d063cd8 | 172 | fputs(argv[1],e_fp); |
33b78306 LW |
173 | argc--,argv++; |
174 | } | |
a687059c | 175 | (void)putc('\n', e_fp); |
8d063cd8 LW |
176 | break; |
177 | case 'I': | |
a687059c LW |
178 | #ifdef TAINT |
179 | if (euid != uid || egid != gid) | |
180 | fatal("No -I allowed in setuid scripts"); | |
181 | #endif | |
13281fa4 LW |
182 | str_cat(str,"-"); |
183 | str_cat(str,s); | |
8d063cd8 | 184 | str_cat(str," "); |
a687059c LW |
185 | if (*++s) { |
186 | (void)apush(stab_array(incstab),str_make(s,0)); | |
378cc40b | 187 | } |
33b78306 | 188 | else if (argv[1]) { |
a687059c | 189 | (void)apush(stab_array(incstab),str_make(argv[1],0)); |
8d063cd8 LW |
190 | str_cat(str,argv[1]); |
191 | argc--,argv++; | |
192 | str_cat(str," "); | |
193 | } | |
194 | break; | |
8d063cd8 | 195 | case 'P': |
a687059c LW |
196 | #ifdef TAINT |
197 | if (euid != uid || egid != gid) | |
198 | fatal("No -P allowed in setuid scripts"); | |
199 | #endif | |
8d063cd8 | 200 | preprocess = TRUE; |
13281fa4 | 201 | s++; |
8d063cd8 LW |
202 | goto reswitch; |
203 | case 's': | |
a687059c LW |
204 | #ifdef TAINT |
205 | if (euid != uid || egid != gid) | |
206 | fatal("No -s allowed in setuid scripts"); | |
207 | #endif | |
8d063cd8 | 208 | doswitches = TRUE; |
13281fa4 | 209 | s++; |
8d063cd8 | 210 | goto reswitch; |
378cc40b LW |
211 | case 'S': |
212 | dosearch = TRUE; | |
13281fa4 | 213 | s++; |
378cc40b | 214 | goto reswitch; |
33b78306 LW |
215 | case 'x': |
216 | doextract = TRUE; | |
13281fa4 | 217 | s++; |
33b78306 LW |
218 | if (*s) |
219 | cddir = savestr(s); | |
220 | break; | |
8d063cd8 LW |
221 | case '-': |
222 | argc--,argv++; | |
223 | goto switch_end; | |
224 | case 0: | |
225 | break; | |
226 | default: | |
13281fa4 | 227 | fatal("Unrecognized switch: -%s",s); |
8d063cd8 LW |
228 | } |
229 | } | |
230 | switch_end: | |
231 | if (e_fp) { | |
a687059c | 232 | (void)fclose(e_fp); |
8d063cd8 LW |
233 | argc++,argv--; |
234 | argv[0] = e_tmpname; | |
235 | } | |
378cc40b LW |
236 | #ifndef PRIVLIB |
237 | #define PRIVLIB "/usr/local/lib/perl" | |
238 | #endif | |
a687059c | 239 | (void)apush(stab_array(incstab),str_make(PRIVLIB,0)); |
33b78306 | 240 | (void)apush(stab_array(incstab),str_make(".",1)); |
8d063cd8 LW |
241 | |
242 | str_set(&str_no,No); | |
243 | str_set(&str_yes,Yes); | |
8d063cd8 LW |
244 | |
245 | /* open script */ | |
246 | ||
247 | if (argv[0] == Nullch) | |
248 | argv[0] = "-"; | |
a687059c | 249 | if (dosearch && !index(argv[0], '/') && (s = getenv("PATH"))) { |
378cc40b | 250 | char *xfound = Nullch, *xfailed = Nullch; |
a687059c | 251 | int len; |
378cc40b | 252 | |
a687059c | 253 | bufend = s + strlen(s); |
378cc40b | 254 | while (*s) { |
33b78306 | 255 | #ifndef MSDOS |
a687059c | 256 | s = cpytill(tokenbuf,s,bufend,':',&len); |
33b78306 LW |
257 | #else |
258 | for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++); | |
259 | tokenbuf[len] = '\0'; | |
260 | #endif | |
378cc40b LW |
261 | if (*s) |
262 | s++; | |
33b78306 LW |
263 | #ifndef MSDOS |
264 | if (len && tokenbuf[len-1] != '/') | |
265 | #else | |
266 | if (len && tokenbuf[len-1] != '\\') | |
267 | #endif | |
a687059c LW |
268 | (void)strcat(tokenbuf+len,"/"); |
269 | (void)strcat(tokenbuf+len,argv[0]); | |
378cc40b LW |
270 | #ifdef DEBUGGING |
271 | if (debug & 1) | |
272 | fprintf(stderr,"Looking for %s\n",tokenbuf); | |
273 | #endif | |
274 | if (stat(tokenbuf,&statbuf) < 0) /* not there? */ | |
275 | continue; | |
276 | if ((statbuf.st_mode & S_IFMT) == S_IFREG | |
a687059c | 277 | && cando(S_IREAD,TRUE,&statbuf) && cando(S_IEXEC,TRUE,&statbuf)) { |
378cc40b LW |
278 | xfound = tokenbuf; /* bingo! */ |
279 | break; | |
280 | } | |
281 | if (!xfailed) | |
282 | xfailed = savestr(tokenbuf); | |
283 | } | |
284 | if (!xfound) | |
a687059c | 285 | fatal("Can't execute %s", xfailed ? xfailed : argv[0] ); |
378cc40b | 286 | if (xfailed) |
a687059c | 287 | Safefree(xfailed); |
378cc40b LW |
288 | argv[0] = savestr(xfound); |
289 | } | |
a687059c | 290 | |
20188a90 LW |
291 | fdpid = anew(Nullstab); /* for remembering popen pids by fd */ |
292 | pidstatus = hnew(Nullstab); /* for remembering status of dead pids */ | |
a687059c | 293 | |
33b78306 | 294 | origfilename = savestr(argv[0]); |
20188a90 LW |
295 | curcmd->c_filestab = fstab(origfilename); |
296 | if (strEQ(origfilename,"-")) | |
8d063cd8 LW |
297 | argv[0] = ""; |
298 | if (preprocess) { | |
378cc40b LW |
299 | str_cat(str,"-I"); |
300 | str_cat(str,PRIVLIB); | |
a687059c | 301 | (void)sprintf(buf, "\ |
20188a90 | 302 | %ssed %s -e '/^[^#]/b' \ |
8d063cd8 LW |
303 | -e '/^#[ ]*include[ ]/b' \ |
304 | -e '/^#[ ]*define[ ]/b' \ | |
305 | -e '/^#[ ]*if[ ]/b' \ | |
306 | -e '/^#[ ]*ifdef[ ]/b' \ | |
378cc40b | 307 | -e '/^#[ ]*ifndef[ ]/b' \ |
8d063cd8 LW |
308 | -e '/^#[ ]*else/b' \ |
309 | -e '/^#[ ]*endif/b' \ | |
310 | -e 's/^#.*//' \ | |
378cc40b | 311 | %s | %s -C %s %s", |
20188a90 LW |
312 | #ifdef MSDOS |
313 | "", | |
314 | #else | |
315 | "/bin/", | |
316 | #endif | |
33b78306 | 317 | (doextract ? "-e '1,/^#/d\n'" : ""), |
378cc40b | 318 | argv[0], CPPSTDIN, str_get(str), CPPMINUS); |
33b78306 | 319 | doextract = FALSE; |
a687059c | 320 | #ifdef IAMSUID /* actually, this is caught earlier */ |
13281fa4 | 321 | if (euid != uid && !euid) /* if running suidperl */ |
a687059c LW |
322 | #ifdef SETEUID |
323 | (void)seteuid(uid); /* musn't stay setuid root */ | |
324 | #else | |
325 | #ifdef SETREUID | |
326 | (void)setreuid(-1, uid); | |
327 | #else | |
328 | setuid(uid); | |
329 | #endif | |
13281fa4 | 330 | #endif |
a687059c LW |
331 | #endif /* IAMSUID */ |
332 | rsfp = mypopen(buf,"r"); | |
8d063cd8 LW |
333 | } |
334 | else if (!*argv[0]) | |
335 | rsfp = stdin; | |
336 | else | |
337 | rsfp = fopen(argv[0],"r"); | |
13281fa4 LW |
338 | if (rsfp == Nullfp) { |
339 | #ifdef DOSUID | |
a687059c | 340 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
20188a90 | 341 | if (euid && stat(stab_val(curcmd->c_filestab)->str_ptr,&statbuf) >= 0 && |
13281fa4 | 342 | statbuf.st_mode & (S_ISUID|S_ISGID)) { |
a687059c LW |
343 | (void)sprintf(buf, "%s/%s", BIN, "suidperl"); |
344 | execv(buf, origargv); /* try again */ | |
13281fa4 LW |
345 | fatal("Can't do setuid\n"); |
346 | } | |
347 | #endif | |
348 | #endif | |
a687059c | 349 | fatal("Can't open perl script \"%s\": %s\n", |
20188a90 | 350 | stab_val(curcmd->c_filestab)->str_ptr, strerror(errno)); |
13281fa4 | 351 | } |
8d063cd8 LW |
352 | str_free(str); /* free -I directories */ |
353 | ||
13281fa4 LW |
354 | /* do we need to emulate setuid on scripts? */ |
355 | ||
356 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
357 | * in the kernel because of a security problem. Merely defining DOSUID | |
358 | * in perl will not fix that problem, but if you have disabled setuid | |
359 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
360 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
361 | * root version must be called suidperl. If regular perl discovers that | |
362 | * it has opened a setuid script, it calls suidperl with the same argv | |
363 | * that it had. If suidperl finds that the script it has just opened | |
364 | * is NOT setuid root, it sets the effective uid back to the uid. We | |
365 | * don't just make perl setuid root because that loses the effective | |
366 | * uid we had before invoking perl, if it was different from the uid. | |
367 | * | |
368 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
369 | * be defined in suidperl only. suidperl must be setuid root. The | |
370 | * Configure script will set this up for you if you want it. | |
a687059c LW |
371 | * |
372 | * There is also the possibility of have a script which is running | |
373 | * set-id due to a C wrapper. We want to do the TAINT checks | |
374 | * on these set-id scripts, but don't want to have the overhead of | |
375 | * them in normal perl, and can't use suidperl because it will lose | |
376 | * the effective uid info, so we have an additional non-setuid root | |
377 | * version called taintperl that just does the TAINT checks. | |
13281fa4 | 378 | */ |
a687059c | 379 | |
13281fa4 LW |
380 | #ifdef DOSUID |
381 | if (fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */ | |
20188a90 | 382 | fatal("Can't stat script \"%s\"",origfilename); |
13281fa4 LW |
383 | if (statbuf.st_mode & (S_ISUID|S_ISGID)) { |
384 | int len; | |
385 | ||
a687059c LW |
386 | #ifdef IAMSUID |
387 | #ifndef SETREUID | |
388 | /* On this access check to make sure the directories are readable, | |
389 | * there is actually a small window that the user could use to make | |
390 | * filename point to an accessible directory. So there is a faint | |
391 | * chance that someone could execute a setuid script down in a | |
392 | * non-accessible directory. I don't know what to do about that. | |
393 | * But I don't think it's too important. The manual lies when | |
394 | * it says access() is useful in setuid programs. | |
395 | */ | |
20188a90 | 396 | if (access(stab_val(curcmd->c_filestab)->str_ptr,1)) /*double check*/ |
13281fa4 | 397 | fatal("Permission denied"); |
a687059c LW |
398 | #else |
399 | /* If we can swap euid and uid, then we can determine access rights | |
400 | * with a simple stat of the file, and then compare device and | |
401 | * inode to make sure we did stat() on the same file we opened. | |
402 | * Then we just have to make sure he or she can execute it. | |
403 | */ | |
404 | { | |
405 | struct stat tmpstatbuf; | |
406 | ||
407 | if (setreuid(euid,uid) < 0 || getuid() != euid || geteuid() != uid) | |
408 | fatal("Can't swap uid and euid"); /* really paranoid */ | |
20188a90 LW |
409 | if (stat(stab_val(curcmd->c_filestab)->str_ptr,&tmpstatbuf) < 0) |
410 | fatal("Permission denied"); /* testing full pathname here */ | |
a687059c LW |
411 | if (tmpstatbuf.st_dev != statbuf.st_dev || |
412 | tmpstatbuf.st_ino != statbuf.st_ino) { | |
413 | (void)fclose(rsfp); | |
414 | if (rsfp = mypopen("/bin/mail root","w")) { /* heh, heh */ | |
415 | fprintf(rsfp, | |
416 | "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\ | |
417 | (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n", | |
418 | uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino, | |
419 | statbuf.st_dev, statbuf.st_ino, | |
20188a90 LW |
420 | stab_val(curcmd->c_filestab)->str_ptr, |
421 | statbuf.st_uid, statbuf.st_gid); | |
a687059c LW |
422 | (void)mypclose(rsfp); |
423 | } | |
424 | fatal("Permission denied\n"); | |
425 | } | |
426 | if (setreuid(uid,euid) < 0 || getuid() != uid || geteuid() != euid) | |
427 | fatal("Can't reswap uid and euid"); | |
428 | if (!cando(S_IEXEC,FALSE,&statbuf)) /* can real uid exec? */ | |
429 | fatal("Permission denied\n"); | |
430 | } | |
431 | #endif /* SETREUID */ | |
432 | #endif /* IAMSUID */ | |
433 | ||
13281fa4 LW |
434 | if ((statbuf.st_mode & S_IFMT) != S_IFREG) |
435 | fatal("Permission denied"); | |
a687059c LW |
436 | if ((statbuf.st_mode >> 6) & S_IWRITE) |
437 | fatal("Setuid/gid script is writable by world"); | |
13281fa4 | 438 | doswitches = FALSE; /* -s is insecure in suid */ |
33b78306 | 439 | curcmd->c_line++; |
13281fa4 LW |
440 | if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch || |
441 | strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */ | |
442 | fatal("No #! line"); | |
663a0e37 LW |
443 | s = tokenbuf+2; |
444 | if (*s == ' ') s++; | |
445 | while (!isspace(*s)) s++; | |
13281fa4 LW |
446 | if (strnNE(s-4,"perl",4)) /* sanity check */ |
447 | fatal("Not a perl script"); | |
a687059c | 448 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
449 | /* |
450 | * #! arg must be what we saw above. They can invoke it by | |
451 | * mentioning suidperl explicitly, but they may not add any strange | |
452 | * arguments beyond what #! says if they do invoke suidperl that way. | |
453 | */ | |
454 | len = strlen(validarg); | |
455 | if (strEQ(validarg," PHOOEY ") || | |
456 | strnNE(s,validarg,len) || !isspace(s[len])) | |
a687059c LW |
457 | fatal("Args must match #! line"); |
458 | ||
459 | #ifndef IAMSUID | |
460 | if (euid != uid && (statbuf.st_mode & S_ISUID) && | |
461 | euid == statbuf.st_uid) | |
462 | if (!do_undump) | |
463 | fatal("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ | |
464 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); | |
465 | #endif /* IAMSUID */ | |
13281fa4 LW |
466 | |
467 | if (euid) { /* oops, we're not the setuid root perl */ | |
a687059c | 468 | (void)fclose(rsfp); |
13281fa4 | 469 | #ifndef IAMSUID |
a687059c LW |
470 | (void)sprintf(buf, "%s/%s", BIN, "suidperl"); |
471 | execv(buf, origargv); /* try again */ | |
13281fa4 LW |
472 | #endif |
473 | fatal("Can't do setuid\n"); | |
474 | } | |
475 | ||
ffed7fef | 476 | if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) |
a687059c LW |
477 | #ifdef SETEGID |
478 | (void)setegid(statbuf.st_gid); | |
479 | #else | |
480 | #ifdef SETREGID | |
481 | (void)setregid((GIDTYPE)-1,statbuf.st_gid); | |
482 | #else | |
483 | setgid(statbuf.st_gid); | |
484 | #endif | |
485 | #endif | |
486 | if (statbuf.st_mode & S_ISUID) { | |
487 | if (statbuf.st_uid != euid) | |
488 | #ifdef SETEUID | |
489 | (void)seteuid(statbuf.st_uid); /* all that for this */ | |
490 | #else | |
491 | #ifdef SETREUID | |
492 | (void)setreuid((UIDTYPE)-1,statbuf.st_uid); | |
493 | #else | |
494 | setuid(statbuf.st_uid); | |
495 | #endif | |
496 | #endif | |
497 | } | |
498 | else if (uid) /* oops, mustn't run as root */ | |
499 | #ifdef SETEUID | |
500 | (void)seteuid((UIDTYPE)uid); | |
501 | #else | |
502 | #ifdef SETREUID | |
503 | (void)setreuid((UIDTYPE)-1,(UIDTYPE)uid); | |
504 | #else | |
505 | setuid((UIDTYPE)uid); | |
506 | #endif | |
507 | #endif | |
ffed7fef | 508 | uid = (int)getuid(); |
13281fa4 | 509 | euid = (int)geteuid(); |
ffed7fef LW |
510 | gid = (int)getgid(); |
511 | egid = (int)getegid(); | |
a687059c | 512 | if (!cando(S_IEXEC,TRUE,&statbuf)) |
13281fa4 LW |
513 | fatal("Permission denied\n"); /* they can't do this */ |
514 | } | |
515 | #ifdef IAMSUID | |
516 | else if (preprocess) | |
517 | fatal("-P not allowed for setuid/setgid script\n"); | |
518 | else | |
519 | fatal("Script is not setuid/setgid in suidperl\n"); | |
a687059c LW |
520 | #else |
521 | #ifndef TAINT /* we aren't taintperl or suidperl */ | |
522 | /* script has a wrapper--can't run suidperl or we lose euid */ | |
523 | else if (euid != uid || egid != gid) { | |
524 | (void)fclose(rsfp); | |
525 | (void)sprintf(buf, "%s/%s", BIN, "taintperl"); | |
526 | execv(buf, origargv); /* try again */ | |
527 | fatal("Can't run setuid script with taint checks"); | |
528 | } | |
529 | #endif /* TAINT */ | |
13281fa4 | 530 | #endif /* IAMSUID */ |
a687059c LW |
531 | #else /* !DOSUID */ |
532 | #ifndef TAINT /* we aren't taintperl or suidperl */ | |
533 | if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */ | |
534 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW | |
535 | fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */ | |
536 | if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID) | |
537 | || | |
538 | (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID) | |
539 | ) | |
540 | if (!do_undump) | |
541 | fatal("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ | |
542 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); | |
543 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
544 | /* not set-id, must be wrapped */ | |
545 | (void)fclose(rsfp); | |
546 | (void)sprintf(buf, "%s/%s", BIN, "taintperl"); | |
547 | execv(buf, origargv); /* try again */ | |
548 | fatal("Can't run setuid script with taint checks"); | |
549 | } | |
550 | #endif /* TAINT */ | |
13281fa4 LW |
551 | #endif /* DOSUID */ |
552 | ||
33b78306 LW |
553 | #if !defined(IAMSUID) && !defined(TAINT) |
554 | ||
555 | /* skip forward in input to the real script? */ | |
556 | ||
557 | while (doextract) { | |
558 | if ((s = str_gets(linestr, rsfp, 0)) == Nullch) | |
559 | fatal("No Perl script found in input\n"); | |
560 | if (*s == '#' && s[1] == '!' && instr(s,"perl")) { | |
561 | ungetc('\n',rsfp); /* to keep line count right */ | |
562 | doextract = FALSE; | |
563 | if (s = instr(s,"perl -")) { | |
564 | s += 6; | |
565 | while (s = moreswitches(s)) ; | |
566 | } | |
567 | if (cddir && chdir(cddir) < 0) | |
568 | fatal("Can't chdir to %s",cddir); | |
569 | } | |
570 | } | |
571 | #endif /* !defined(IAMSUID) && !defined(TAINT) */ | |
572 | ||
8d063cd8 LW |
573 | defstab = stabent("_",TRUE); |
574 | ||
a687059c LW |
575 | if (perldb) { |
576 | debstash = hnew(0); | |
577 | stab_xhash(stabent("_DB",TRUE)) = debstash; | |
578 | curstash = debstash; | |
20188a90 | 579 | dbargs = stab_xarray(aadd((tmpstab = stabent("args",TRUE)))); |
a687059c | 580 | tmpstab->str_pok |= SP_MULTI; |
20188a90 | 581 | dbargs->ary_flags = 0; |
a687059c LW |
582 | subname = str_make("main",4); |
583 | DBstab = stabent("DB",TRUE); | |
584 | DBstab->str_pok |= SP_MULTI; | |
20188a90 LW |
585 | DBline = stabent("dbline",TRUE); |
586 | DBline->str_pok |= SP_MULTI; | |
a687059c LW |
587 | DBsub = hadd(tmpstab = stabent("sub",TRUE)); |
588 | tmpstab->str_pok |= SP_MULTI; | |
589 | DBsingle = stab_val((tmpstab = stabent("single",TRUE))); | |
590 | tmpstab->str_pok |= SP_MULTI; | |
20188a90 LW |
591 | DBtrace = stab_val((tmpstab = stabent("trace",TRUE))); |
592 | tmpstab->str_pok |= SP_MULTI; | |
593 | DBsignal = stab_val((tmpstab = stabent("signal",TRUE))); | |
594 | tmpstab->str_pok |= SP_MULTI; | |
a687059c LW |
595 | curstash = defstash; |
596 | } | |
597 | ||
8d063cd8 LW |
598 | /* init tokener */ |
599 | ||
a687059c LW |
600 | bufend = bufptr = str_get(linestr); |
601 | ||
602 | savestack = anew(Nullstab); /* for saving non-local values */ | |
603 | stack = anew(Nullstab); /* for saving non-local values */ | |
604 | stack->ary_flags = 0; /* not a real array */ | |
6eb13c3b LW |
605 | afill(stack,63); afill(stack,-1); /* preextend stack */ |
606 | afill(savestack,63); afill(savestack,-1); | |
8d063cd8 | 607 | |
a687059c | 608 | /* now parse the script */ |
8d063cd8 | 609 | |
a687059c | 610 | error_count = 0; |
33b78306 LW |
611 | if (yyparse() || error_count) { |
612 | if (minus_c) | |
613 | fatal("%s had compilation errors.\n", origfilename); | |
614 | else { | |
615 | fatal("Execution of %s aborted due to compilation errors.\n", | |
616 | origfilename); | |
617 | } | |
618 | } | |
8d063cd8 | 619 | |
a687059c | 620 | New(50,loop_stack,128,struct loop); |
ae986130 LW |
621 | #ifdef DEBUGGING |
622 | if (debug) { | |
623 | New(51,debname,128,char); | |
624 | New(52,debdelim,128,char); | |
625 | } | |
626 | #endif | |
a687059c | 627 | curstash = defstash; |
378cc40b LW |
628 | |
629 | preprocess = FALSE; | |
8d063cd8 LW |
630 | if (e_fp) { |
631 | e_fp = Nullfp; | |
a687059c LW |
632 | (void)UNLINK(e_tmpname); |
633 | } | |
634 | ||
635 | /* initialize everything that won't change if we undump */ | |
636 | ||
637 | if (sigstab = stabent("SIG",allstabs)) { | |
638 | sigstab->str_pok |= SP_MULTI; | |
639 | (void)hadd(sigstab); | |
640 | } | |
641 | ||
20188a90 | 642 | magicalize("!#?^~=-%0123456789.+&*()<>,\\/[|`':\024"); |
33b78306 | 643 | userinit(); /* in case linked C routines want magical variables */ |
a687059c LW |
644 | |
645 | amperstab = stabent("&",allstabs); | |
646 | leftstab = stabent("`",allstabs); | |
647 | rightstab = stabent("'",allstabs); | |
648 | sawampersand = (amperstab || leftstab || rightstab); | |
649 | if (tmpstab = stabent(":",allstabs)) | |
650 | str_set(STAB_STR(tmpstab),chopset); | |
20188a90 LW |
651 | if (tmpstab = stabent("\024",allstabs)) |
652 | time(&basetime); | |
a687059c LW |
653 | |
654 | /* these aren't necessarily magical */ | |
655 | if (tmpstab = stabent(";",allstabs)) | |
656 | str_set(STAB_STR(tmpstab),"\034"); | |
33b78306 LW |
657 | if (tmpstab = stabent("]",allstabs)) { |
658 | str = STAB_STR(tmpstab); | |
659 | str_set(str,rcsid); | |
660 | strncpy(tokenbuf,rcsid+19,3); | |
661 | sprintf(tokenbuf+3,"%2.2d",PATCHLEVEL); | |
662 | str->str_u.str_nval = atof(tokenbuf); | |
663 | str->str_nok = 1; | |
664 | } | |
a687059c LW |
665 | str_nset(stab_val(stabent("\"", TRUE)), " ", 1); |
666 | ||
667 | stdinstab = stabent("STDIN",TRUE); | |
668 | stdinstab->str_pok |= SP_MULTI; | |
669 | stab_io(stdinstab) = stio_new(); | |
670 | stab_io(stdinstab)->ifp = stdin; | |
671 | tmpstab = stabent("stdin",TRUE); | |
672 | stab_io(tmpstab) = stab_io(stdinstab); | |
673 | tmpstab->str_pok |= SP_MULTI; | |
674 | ||
675 | tmpstab = stabent("STDOUT",TRUE); | |
676 | tmpstab->str_pok |= SP_MULTI; | |
677 | stab_io(tmpstab) = stio_new(); | |
678 | stab_io(tmpstab)->ofp = stab_io(tmpstab)->ifp = stdout; | |
679 | defoutstab = tmpstab; | |
680 | tmpstab = stabent("stdout",TRUE); | |
681 | stab_io(tmpstab) = stab_io(defoutstab); | |
682 | tmpstab->str_pok |= SP_MULTI; | |
683 | ||
684 | curoutstab = stabent("STDERR",TRUE); | |
685 | curoutstab->str_pok |= SP_MULTI; | |
686 | stab_io(curoutstab) = stio_new(); | |
687 | stab_io(curoutstab)->ofp = stab_io(curoutstab)->ifp = stderr; | |
688 | tmpstab = stabent("stderr",TRUE); | |
689 | stab_io(tmpstab) = stab_io(curoutstab); | |
690 | tmpstab->str_pok |= SP_MULTI; | |
691 | curoutstab = defoutstab; /* switch back to STDOUT */ | |
692 | ||
693 | statname = Str_new(66,0); /* last filename we did stat on */ | |
694 | ||
a687059c LW |
695 | if (do_undump) |
696 | abort(); | |
697 | ||
698 | just_doit: /* come here if running an undumped a.out */ | |
8d063cd8 LW |
699 | argc--,argv++; /* skip name of script */ |
700 | if (doswitches) { | |
701 | for (; argc > 0 && **argv == '-'; argc--,argv++) { | |
702 | if (argv[0][1] == '-') { | |
703 | argc--,argv++; | |
704 | break; | |
705 | } | |
a687059c | 706 | str_numset(stab_val(stabent(argv[0]+1,TRUE)),(double)1.0); |
8d063cd8 LW |
707 | } |
708 | } | |
a687059c LW |
709 | #ifdef TAINT |
710 | tainted = 1; | |
711 | #endif | |
33b78306 LW |
712 | if (tmpstab = stabent("0",allstabs)) |
713 | str_set(STAB_STR(tmpstab),origfilename); | |
a559c259 | 714 | if (argvstab = stabent("ARGV",allstabs)) { |
a687059c LW |
715 | argvstab->str_pok |= SP_MULTI; |
716 | (void)aadd(argvstab); | |
33b78306 | 717 | aclear(stab_array(argvstab)); |
8d063cd8 | 718 | for (; argc > 0; argc--,argv++) { |
a687059c | 719 | (void)apush(stab_array(argvstab),str_make(argv[0],0)); |
8d063cd8 LW |
720 | } |
721 | } | |
a687059c LW |
722 | #ifdef TAINT |
723 | (void) stabent("ENV",TRUE); /* must test PATH and IFS */ | |
724 | #endif | |
a559c259 | 725 | if (envstab = stabent("ENV",allstabs)) { |
a687059c LW |
726 | envstab->str_pok |= SP_MULTI; |
727 | (void)hadd(envstab); | |
20188a90 | 728 | hclear(stab_hash(envstab), FALSE); |
33b78306 LW |
729 | if (env != environ) |
730 | environ[0] = Nullch; | |
8d063cd8 LW |
731 | for (; *env; env++) { |
732 | if (!(s = index(*env,'='))) | |
733 | continue; | |
734 | *s++ = '\0'; | |
a687059c LW |
735 | str = str_make(s--,0); |
736 | str_magic(str, envstab, 'E', *env, s - *env); | |
737 | (void)hstore(stab_hash(envstab), *env, s - *env, str, 0); | |
738 | *s = '='; | |
8d063cd8 LW |
739 | } |
740 | } | |
a687059c LW |
741 | #ifdef TAINT |
742 | tainted = 0; | |
743 | #endif | |
378cc40b | 744 | if (tmpstab = stabent("$",allstabs)) |
8d063cd8 LW |
745 | str_numset(STAB_STR(tmpstab),(double)getpid()); |
746 | ||
20188a90 LW |
747 | if (dowarn) { |
748 | stab_check('A','Z'); | |
749 | stab_check('a','z'); | |
750 | } | |
751 | ||
a687059c | 752 | if (setjmp(top_env)) /* sets goto_targ on longjump */ |
ac58e20f | 753 | loop_ptr = -1; /* start label stack again */ |
8d063cd8 LW |
754 | |
755 | #ifdef DEBUGGING | |
756 | if (debug & 1024) | |
a687059c | 757 | dump_all(); |
8d063cd8 LW |
758 | if (debug) |
759 | fprintf(stderr,"\nEXECUTING...\n\n"); | |
760 | #endif | |
761 | ||
33b78306 LW |
762 | if (minus_c) { |
763 | fprintf(stderr,"%s syntax OK\n", origfilename); | |
764 | exit(0); | |
765 | } | |
766 | ||
8d063cd8 LW |
767 | /* do it */ |
768 | ||
a687059c | 769 | (void) cmd_exec(main_root,G_SCALAR,-1); |
8d063cd8 LW |
770 | |
771 | if (goto_targ) | |
378cc40b | 772 | fatal("Can't find label \"%s\"--aborting",goto_targ); |
8d063cd8 | 773 | exit(0); |
378cc40b | 774 | /* NOTREACHED */ |
8d063cd8 LW |
775 | } |
776 | ||
777 | magicalize(list) | |
778 | register char *list; | |
779 | { | |
8d063cd8 LW |
780 | char sym[2]; |
781 | ||
782 | sym[1] = '\0'; | |
33b78306 LW |
783 | while (*sym = *list++) |
784 | magicname(sym, Nullch, 0); | |
785 | } | |
786 | ||
787 | int | |
788 | magicname(sym,name,namlen) | |
789 | char *sym; | |
790 | char *name; | |
791 | int namlen; | |
792 | { | |
793 | register STAB *stab; | |
794 | ||
795 | if (stab = stabent(sym,allstabs)) { | |
796 | stab_flags(stab) = SF_VMAGIC; | |
797 | str_magic(stab_val(stab), stab, 0, name, namlen); | |
378cc40b | 798 | } |
8d063cd8 LW |
799 | } |
800 | ||
a687059c | 801 | /* this routine is in perly.c by virtue of being sort of an alternate main() */ |
8d063cd8 | 802 | |
a687059c LW |
803 | int |
804 | do_eval(str,optype,stash,gimme,arglast) | |
805 | STR *str; | |
806 | int optype; | |
807 | HASH *stash; | |
808 | int gimme; | |
809 | int *arglast; | |
8d063cd8 | 810 | { |
a687059c LW |
811 | STR **st = stack->ary_array; |
812 | int retval; | |
813 | CMD *myroot; | |
814 | ARRAY *ar; | |
815 | int i; | |
33b78306 | 816 | CMD * VOLATILE oldcurcmd = curcmd; |
ac58e20f LW |
817 | VOLATILE int oldtmps_base = tmps_base; |
818 | VOLATILE int oldsave = savestack->ary_fill; | |
20188a90 | 819 | VOLATILE int oldperldb = perldb; |
ac58e20f | 820 | SPAT * VOLATILE oldspat = curspat; |
a687059c LW |
821 | static char *last_eval = Nullch; |
822 | static CMD *last_root = Nullcmd; | |
663a0e37 | 823 | VOLATILE int sp = arglast[0]; |
33b78306 | 824 | char *specfilename; |
20188a90 | 825 | char *tmpfilename; |
8d063cd8 | 826 | |
a687059c LW |
827 | tmps_base = tmps_max; |
828 | if (curstash != stash) { | |
829 | (void)savehptr(&curstash); | |
830 | curstash = stash; | |
8d063cd8 | 831 | } |
a687059c | 832 | str_set(stab_val(stabent("@",TRUE)),""); |
20188a90 LW |
833 | if (curcmd->c_line == 0) /* don't debug debugger... */ |
834 | perldb = FALSE; | |
33b78306 LW |
835 | curcmd = &compiling; |
836 | if (optype == O_EVAL) { /* normal eval */ | |
20188a90 | 837 | curcmd->c_filestab = fstab("(eval)"); |
33b78306 | 838 | curcmd->c_line = 1; |
a687059c LW |
839 | str_sset(linestr,str); |
840 | str_cat(linestr,";"); /* be kind to them */ | |
8d063cd8 | 841 | } |
a687059c | 842 | else { |
0f85fab0 | 843 | if (last_root && !in_eval) { |
a687059c LW |
844 | Safefree(last_eval); |
845 | cmd_free(last_root); | |
846 | last_root = Nullcmd; | |
8d063cd8 | 847 | } |
33b78306 | 848 | specfilename = str_get(str); |
a687059c | 849 | str_set(linestr,""); |
20188a90 | 850 | if (optype == O_REQUIRE && &str_undef != |
33b78306 | 851 | hfetch(stab_hash(incstab), specfilename, strlen(specfilename), 0)) { |
20188a90 | 852 | curcmd = oldcurcmd; |
33b78306 LW |
853 | tmps_base = oldtmps_base; |
854 | st[++sp] = &str_yes; | |
20188a90 | 855 | perldb = oldperldb; |
33b78306 LW |
856 | return sp; |
857 | } | |
20188a90 LW |
858 | tmpfilename = savestr(specfilename); |
859 | if (index("/.", *tmpfilename)) | |
860 | rsfp = fopen(tmpfilename,"r"); | |
33b78306 LW |
861 | else { |
862 | ar = stab_array(incstab); | |
a687059c | 863 | for (i = 0; i <= ar->ary_fill; i++) { |
20188a90 LW |
864 | (void)sprintf(buf, "%s/%s", |
865 | str_get(afetch(ar,i,TRUE)), specfilename); | |
a687059c LW |
866 | rsfp = fopen(buf,"r"); |
867 | if (rsfp) { | |
33b78306 LW |
868 | char *s = buf; |
869 | ||
870 | if (*s == '.' && s[1] == '/') | |
871 | s += 2; | |
20188a90 LW |
872 | Safefree(tmpfilename); |
873 | tmpfilename = savestr(s); | |
8d063cd8 LW |
874 | break; |
875 | } | |
378cc40b LW |
876 | } |
877 | } | |
20188a90 LW |
878 | curcmd->c_filestab = fstab(tmpfilename); |
879 | Safefree(tmpfilename); | |
a687059c | 880 | if (!rsfp) { |
20188a90 | 881 | curcmd = oldcurcmd; |
a687059c | 882 | tmps_base = oldtmps_base; |
33b78306 LW |
883 | if (optype == O_REQUIRE) { |
884 | sprintf(tokenbuf,"Can't locate %s in @INC", specfilename); | |
885 | if (instr(tokenbuf,".h ")) | |
886 | strcat(tokenbuf," (change .h to .ph maybe?)"); | |
887 | if (instr(tokenbuf,".ph ")) | |
6eb13c3b | 888 | strcat(tokenbuf," (did you run h2ph?)"); |
33b78306 LW |
889 | fatal("%s",tokenbuf); |
890 | } | |
a687059c LW |
891 | if (gimme != G_ARRAY) |
892 | st[++sp] = &str_undef; | |
20188a90 | 893 | perldb = oldperldb; |
a687059c | 894 | return sp; |
8d063cd8 | 895 | } |
33b78306 | 896 | curcmd->c_line = 0; |
8d063cd8 | 897 | } |
a687059c LW |
898 | in_eval++; |
899 | oldoldbufptr = oldbufptr = bufptr = str_get(linestr); | |
900 | bufend = bufptr + linestr->str_cur; | |
ac58e20f LW |
901 | if (++loop_ptr >= loop_max) { |
902 | loop_max += 128; | |
903 | Renew(loop_stack, loop_max, struct loop); | |
904 | } | |
905 | loop_stack[loop_ptr].loop_label = "_EVAL_"; | |
906 | loop_stack[loop_ptr].loop_sp = sp; | |
907 | #ifdef DEBUGGING | |
908 | if (debug & 4) { | |
909 | deb("(Pushing label #%d _EVAL_)\n", loop_ptr); | |
910 | } | |
911 | #endif | |
912 | if (setjmp(loop_stack[loop_ptr].loop_env)) { | |
a687059c LW |
913 | retval = 1; |
914 | last_root = Nullcmd; | |
8d063cd8 | 915 | } |
a687059c LW |
916 | else { |
917 | error_count = 0; | |
20188a90 | 918 | if (rsfp) { |
a687059c | 919 | retval = yyparse(); |
20188a90 LW |
920 | retval |= error_count; |
921 | } | |
a687059c LW |
922 | else if (last_root && *bufptr == *last_eval && strEQ(bufptr,last_eval)){ |
923 | retval = 0; | |
924 | eval_root = last_root; /* no point in reparsing */ | |
925 | } | |
926 | else if (in_eval == 1) { | |
927 | if (last_root) { | |
928 | Safefree(last_eval); | |
929 | cmd_free(last_root); | |
8d063cd8 | 930 | } |
a687059c LW |
931 | last_eval = savestr(bufptr); |
932 | last_root = Nullcmd; | |
933 | retval = yyparse(); | |
20188a90 | 934 | retval |= error_count; |
a687059c LW |
935 | if (!retval) |
936 | last_root = eval_root; | |
8d063cd8 | 937 | } |
a687059c LW |
938 | else |
939 | retval = yyparse(); | |
8d063cd8 | 940 | } |
a687059c | 941 | myroot = eval_root; /* in case cmd_exec does another eval! */ |
20188a90 LW |
942 | |
943 | if (retval) { | |
ac58e20f LW |
944 | st = stack->ary_array; |
945 | sp = arglast[0]; | |
946 | if (gimme != G_ARRAY) | |
947 | st[++sp] = &str_undef; | |
a687059c LW |
948 | last_root = Nullcmd; /* can't free on error, for some reason */ |
949 | if (rsfp) { | |
950 | fclose(rsfp); | |
951 | rsfp = 0; | |
952 | } | |
8d063cd8 | 953 | } |
8d063cd8 | 954 | else { |
a687059c LW |
955 | sp = cmd_exec(eval_root,gimme,sp); |
956 | st = stack->ary_array; | |
957 | for (i = arglast[0] + 1; i <= sp; i++) | |
958 | st[i] = str_static(st[i]); | |
959 | /* if we don't save result, free zaps it */ | |
960 | if (in_eval != 1 && myroot != last_root) | |
961 | cmd_free(myroot); | |
a559c259 | 962 | } |
20188a90 LW |
963 | |
964 | perldb = oldperldb; | |
a559c259 | 965 | in_eval--; |
ac58e20f | 966 | #ifdef DEBUGGING |
20188a90 LW |
967 | if (debug & 4) { |
968 | char *tmps = loop_stack[loop_ptr].loop_label; | |
969 | deb("(Popping label #%d %s)\n",loop_ptr, | |
970 | tmps ? tmps : "" ); | |
971 | } | |
ac58e20f LW |
972 | #endif |
973 | loop_ptr--; | |
378cc40b | 974 | tmps_base = oldtmps_base; |
a687059c | 975 | curspat = oldspat; |
378cc40b LW |
976 | if (savestack->ary_fill > oldsave) /* let them use local() */ |
977 | restorelist(oldsave); | |
20188a90 LW |
978 | |
979 | if (optype != O_EVAL) { | |
980 | if (retval) { | |
981 | if (optype == O_REQUIRE) | |
982 | fatal("%s", str_get(stab_val(stabent("@",TRUE)))); | |
983 | } | |
984 | else { | |
985 | curcmd = oldcurcmd; | |
986 | if (gimme == G_SCALAR ? str_true(st[sp]) : sp > arglast[0]) { | |
987 | (void)hstore(stab_hash(incstab), specfilename, | |
988 | strlen(specfilename), str_smake(stab_val(curcmd->c_filestab)), | |
989 | 0 ); | |
990 | } | |
991 | else if (optype == O_REQUIRE) | |
992 | fatal("%s did not return a true value", specfilename); | |
993 | } | |
994 | } | |
995 | curcmd = oldcurcmd; | |
a687059c | 996 | return sp; |
378cc40b | 997 | } |
33b78306 LW |
998 | |
999 | /* This routine handles any switches that can be given during run */ | |
1000 | ||
1001 | static char * | |
1002 | moreswitches(s) | |
1003 | char *s; | |
1004 | { | |
1005 | reswitch: | |
1006 | switch (*s) { | |
1007 | case 'a': | |
1008 | minus_a = TRUE; | |
1009 | s++; | |
1010 | return s; | |
1011 | case 'c': | |
1012 | minus_c = TRUE; | |
1013 | s++; | |
1014 | return s; | |
1015 | case 'd': | |
1016 | #ifdef TAINT | |
1017 | if (euid != uid || egid != gid) | |
1018 | fatal("No -d allowed in setuid scripts"); | |
1019 | #endif | |
1020 | perldb = TRUE; | |
1021 | s++; | |
1022 | return s; | |
1023 | case 'D': | |
1024 | #ifdef DEBUGGING | |
1025 | #ifdef TAINT | |
1026 | if (euid != uid || egid != gid) | |
1027 | fatal("No -D allowed in setuid scripts"); | |
1028 | #endif | |
1029 | debug = atoi(s+1); | |
1030 | #else | |
1031 | warn("Recompile perl with -DDEBUGGING to use -D switch\n"); | |
1032 | #endif | |
1033 | break; | |
1034 | case 'i': | |
1035 | inplace = savestr(s+1); | |
1036 | for (s = inplace; *s && !isspace(*s); s++) ; | |
1037 | *s = '\0'; | |
1038 | argvoutstab = stabent("ARGVOUT",TRUE); | |
1039 | break; | |
1040 | case 'I': | |
1041 | #ifdef TAINT | |
1042 | if (euid != uid || egid != gid) | |
1043 | fatal("No -I allowed in setuid scripts"); | |
1044 | #endif | |
1045 | if (*++s) { | |
1046 | (void)apush(stab_array(incstab),str_make(s,0)); | |
1047 | } | |
1048 | else | |
1049 | fatal("No space allowed after -I"); | |
1050 | break; | |
1051 | case 'n': | |
1052 | minus_n = TRUE; | |
1053 | s++; | |
1054 | return s; | |
1055 | case 'p': | |
1056 | minus_p = TRUE; | |
1057 | s++; | |
1058 | return s; | |
1059 | case 'u': | |
1060 | do_undump = TRUE; | |
1061 | s++; | |
1062 | return s; | |
1063 | case 'U': | |
1064 | unsafe = TRUE; | |
1065 | s++; | |
1066 | return s; | |
1067 | case 'v': | |
20188a90 | 1068 | fputs("\nThis is perl, version 3.0\n\n",stdout); |
33b78306 LW |
1069 | fputs(rcsid,stdout); |
1070 | fputs("\nCopyright (c) 1989, 1990, Larry Wall\n",stdout); | |
1071 | #ifdef MSDOS | |
1072 | fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n", | |
1073 | stdout); | |
20188a90 LW |
1074 | #ifdef OS2 |
1075 | fputs("OS/2 port Copyright (c) 1990, Raymond Chen, Kai Uwe Rommel\n", | |
1076 | stdout); | |
1077 | #endif | |
33b78306 LW |
1078 | #endif |
1079 | fputs("\n\ | |
1080 | Perl may be copied only under the terms of the GNU General Public License,\n\ | |
1081 | a copy of which can be found with the Perl 3.0 distribution kit.\n",stdout); | |
20188a90 LW |
1082 | #ifdef MSDOS |
1083 | usage(origargv[0]); | |
1084 | #endif | |
33b78306 LW |
1085 | exit(0); |
1086 | case 'w': | |
1087 | dowarn = TRUE; | |
1088 | s++; | |
1089 | return s; | |
1090 | case ' ': | |
1091 | case '\n': | |
1092 | case '\t': | |
1093 | break; | |
1094 | default: | |
1095 | fatal("Switch meaningless after -x: -%s",s); | |
1096 | } | |
1097 | return Nullch; | |
1098 | } |