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22e155fc DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
8 | char copyright[] = | |
9 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
10 | All rights reserved.\n"; | |
11 | #endif not lint | |
12 | ||
840fc587 | 13 | #ifndef lint |
22e155fc DF |
14 | static char sccsid[] = "@(#)sccs.c 5.1 (Berkeley) %G%"; |
15 | #endif not lint | |
840fc587 | 16 | |
1cc2dcec | 17 | # include <stdio.h> |
440d5d81 | 18 | # include <sys/param.h> |
1cc2dcec | 19 | # include <sys/stat.h> |
840fc587 | 20 | # include <sys/dir.h> |
629c0863 EA |
21 | # include <errno.h> |
22 | # include <signal.h> | |
1cc2dcec | 23 | # include <sysexits.h> |
705c2473 | 24 | # include <pwd.h> |
1cc2dcec | 25 | |
27e713f7 EA |
26 | /* |
27 | ** SCCS.C -- human-oriented front end to the SCCS system. | |
28 | ** | |
29 | ** Without trying to add any functionality to speak of, this | |
30 | ** program tries to make SCCS a little more accessible to human | |
31 | ** types. The main thing it does is automatically put the | |
32 | ** string "SCCS/s." on the front of names. Also, it has a | |
33 | ** couple of things that are designed to shorten frequent | |
34 | ** combinations, e.g., "delget" which expands to a "delta" | |
35 | ** and a "get". | |
36 | ** | |
37 | ** This program can also function as a setuid front end. | |
38 | ** To do this, you should copy the source, renaming it to | |
39 | ** whatever you want, e.g., "syssccs". Change any defaults | |
40 | ** in the program (e.g., syssccs might default -d to | |
41 | ** "/usr/src/sys"). Then recompile and put the result | |
42 | ** as setuid to whomever you want. In this mode, sccs | |
43 | ** knows to not run setuid for certain programs in order | |
44 | ** to preserve security, and so forth. | |
45 | ** | |
46 | ** Usage: | |
47 | ** sccs [flags] command [args] | |
48 | ** | |
49 | ** Flags: | |
50 | ** -d<dir> <dir> represents a directory to search | |
51 | ** out of. It should be a full pathname | |
52 | ** for general usage. E.g., if <dir> is | |
53 | ** "/usr/src/sys", then a reference to the | |
54 | ** file "dev/bio.c" becomes a reference to | |
55 | ** "/usr/src/sys/dev/bio.c". | |
56 | ** -p<path> prepends <path> to the final component | |
57 | ** of the pathname. By default, this is | |
58 | ** "SCCS". For example, in the -d example | |
59 | ** above, the path then gets modified to | |
60 | ** "/usr/src/sys/dev/SCCS/s.bio.c". In | |
61 | ** more common usage (without the -d flag), | |
62 | ** "prog.c" would get modified to | |
63 | ** "SCCS/s.prog.c". In both cases, the | |
64 | ** "s." gets automatically prepended. | |
65 | ** -r run as the real user. | |
66 | ** | |
67 | ** Commands: | |
68 | ** admin, | |
69 | ** get, | |
70 | ** delta, | |
71 | ** rmdel, | |
72 | ** chghist, | |
73 | ** etc. Straight out of SCCS; only difference | |
74 | ** is that pathnames get modified as | |
75 | ** described above. | |
76 | ** edit Macro for "get -e". | |
77 | ** unedit Removes a file being edited, knowing | |
78 | ** about p-files, etc. | |
79 | ** delget Macro for "delta" followed by "get". | |
80 | ** deledit Macro for "delta" followed by "get -e". | |
81 | ** info Tell what files being edited. | |
82 | ** clean Remove all files that can be | |
83 | ** regenerated from SCCS files. | |
d266e8cb | 84 | ** check Like info, but return exit status, for |
27e713f7 EA |
85 | ** use in makefiles. |
86 | ** fix Remove a top delta & reedit, but save | |
87 | ** the previous changes in that delta. | |
88 | ** | |
89 | ** Compilation Flags: | |
90 | ** UIDUSER -- determine who the user is by looking at the | |
91 | ** uid rather than the login name -- for machines | |
92 | ** where SCCS gets the user in this way. | |
56151b9e | 93 | ** SCCSDIR -- if defined, forces the -d flag to take on |
d266e8cb EA |
94 | ** this value. This is so that the setuid |
95 | ** aspects of this program cannot be abused. | |
56151b9e EA |
96 | ** This flag also disables the -p flag. |
97 | ** SCCSPATH -- the default for the -p flag. | |
27082f2b EA |
98 | ** MYNAME -- the title this program should print when it |
99 | ** gives error messages. | |
27e713f7 EA |
100 | ** |
101 | ** Compilation Instructions: | |
102 | ** cc -O -n -s sccs.c | |
27082f2b EA |
103 | ** The flags listed above can be -D defined to simplify |
104 | ** recompilation for variant versions. | |
27e713f7 EA |
105 | ** |
106 | ** Author: | |
107 | ** Eric Allman, UCB/INGRES | |
56151b9e | 108 | ** Copyright 1980 Regents of the University of California |
27e713f7 EA |
109 | */ |
110 | ||
2d351698 | 111 | \f |
56151b9e EA |
112 | /******************* Configuration Information ********************/ |
113 | ||
27082f2b | 114 | # ifndef SCCSPATH |
2d351698 | 115 | # define SCCSPATH "SCCS" /* pathname in which to find s-files */ |
27082f2b | 116 | # endif NOT SCCSPATH |
56151b9e | 117 | |
27082f2b EA |
118 | # ifndef MYNAME |
119 | # define MYNAME "sccs" /* name used for printing errors */ | |
120 | # endif NOT MYNAME | |
27e713f7 | 121 | |
2d351698 | 122 | # ifndef PROGPATH |
440d5d81 | 123 | # define PROGPATH(name) "/usr/local/name" /* place to find binaries */ |
2d351698 | 124 | # endif PROGPATH |
2a0234bf | 125 | |
2d351698 EA |
126 | /**************** End of Configuration Information ****************/ |
127 | \f | |
2a0234bf | 128 | typedef char bool; |
a97ecd0d EA |
129 | # define TRUE 1 |
130 | # define FALSE 0 | |
81dc6403 | 131 | |
e1e64d36 EA |
132 | # define bitset(bit, word) ((bool) ((bit) & (word))) |
133 | ||
1cc2dcec EA |
134 | struct sccsprog |
135 | { | |
136 | char *sccsname; /* name of SCCS routine */ | |
a97ecd0d EA |
137 | short sccsoper; /* opcode, see below */ |
138 | short sccsflags; /* flags, see below */ | |
1cc2dcec EA |
139 | char *sccspath; /* pathname of binary implementing */ |
140 | }; | |
141 | ||
a97ecd0d EA |
142 | /* values for sccsoper */ |
143 | # define PROG 0 /* call a program */ | |
e672376b | 144 | # define CMACRO 1 /* command substitution macro */ |
4535945e | 145 | # define FIX 2 /* fix a delta */ |
399058e3 | 146 | # define CLEAN 3 /* clean out recreatable files */ |
61886f2a | 147 | # define UNEDIT 4 /* unedit a file */ |
c9ac6819 | 148 | # define SHELL 5 /* call a shell file (like PROG) */ |
629c0863 | 149 | # define DIFFS 6 /* diff between sccs & file out */ |
73b61bcf | 150 | # define DODIFF 7 /* internal call to diff program */ |
ad6f33f2 | 151 | # define ENTER 8 /* enter new files */ |
a97ecd0d | 152 | |
2a0234bf | 153 | /* bits for sccsflags */ |
a97ecd0d EA |
154 | # define NO_SDOT 0001 /* no s. on front of args */ |
155 | # define REALUSER 0002 /* protected (e.g., admin) */ | |
1cc2dcec | 156 | |
89819fbe EA |
157 | /* modes for the "clean", "info", "check" ops */ |
158 | # define CLEANC 0 /* clean command */ | |
159 | # define INFOC 1 /* info command */ | |
160 | # define CHECKC 2 /* check command */ | |
bdd50a56 | 161 | # define TELLC 3 /* give list of files being edited */ |
89819fbe | 162 | |
2d351698 EA |
163 | /* |
164 | ** Description of commands known to this program. | |
165 | ** First argument puts the command into a class. Second arg is | |
166 | ** info regarding treatment of this command. Third arg is a | |
167 | ** list of flags this command accepts from macros, etc. Fourth | |
168 | ** arg is the pathname of the implementing program, or the | |
169 | ** macro definition, or the arg to a sub-algorithm. | |
170 | */ | |
7a8ba074 | 171 | |
1cc2dcec EA |
172 | struct sccsprog SccsProg[] = |
173 | { | |
6aac25be EA |
174 | "admin", PROG, REALUSER, PROGPATH(admin), |
175 | "chghist", PROG, 0, PROGPATH(rmdel), | |
176 | "comb", PROG, 0, PROGPATH(comb), | |
177 | "delta", PROG, 0, PROGPATH(delta), | |
178 | "get", PROG, 0, PROGPATH(get), | |
179 | "help", PROG, NO_SDOT, PROGPATH(help), | |
56b5d646 | 180 | "prs", PROG, 0, PROGPATH(prs), |
6aac25be EA |
181 | "prt", PROG, 0, PROGPATH(prt), |
182 | "rmdel", PROG, REALUSER, PROGPATH(rmdel), | |
56b5d646 | 183 | "val", PROG, 0, PROGPATH(val), |
6aac25be EA |
184 | "what", PROG, NO_SDOT, PROGPATH(what), |
185 | "sccsdiff", SHELL, REALUSER, PROGPATH(sccsdiff), | |
186 | "edit", CMACRO, NO_SDOT, "get -e", | |
187 | "delget", CMACRO, NO_SDOT, "delta:mysrp/get:ixbeskcl -t", | |
a479627e | 188 | "deledit", CMACRO, NO_SDOT, "delta:mysrp -n/get:ixbskcl -e -t -g", |
6aac25be EA |
189 | "fix", FIX, NO_SDOT, NULL, |
190 | "clean", CLEAN, REALUSER|NO_SDOT, (char *) CLEANC, | |
191 | "info", CLEAN, REALUSER|NO_SDOT, (char *) INFOC, | |
192 | "check", CLEAN, REALUSER|NO_SDOT, (char *) CHECKC, | |
193 | "tell", CLEAN, REALUSER|NO_SDOT, (char *) TELLC, | |
194 | "unedit", UNEDIT, NO_SDOT, NULL, | |
195 | "diffs", DIFFS, NO_SDOT|REALUSER, NULL, | |
73b61bcf | 196 | "-diff", DODIFF, NO_SDOT|REALUSER, PROGPATH(bdiff), |
5c7d3059 | 197 | "print", CMACRO, 0, "prt -e/get -p -m -s", |
d8d51f68 EA |
198 | "branch", CMACRO, NO_SDOT, |
199 | "get:ixrc -e -b/delta: -s -n -ybranch-place-holder/get:pl -e -t -g", | |
ad6f33f2 RH |
200 | "enter", ENTER, NO_SDOT, NULL, |
201 | "create", CMACRO, NO_SDOT, "enter/get:ixbeskcl -t", | |
6aac25be | 202 | NULL, -1, 0, NULL |
1cc2dcec EA |
203 | }; |
204 | ||
2d351698 | 205 | /* one line from a p-file */ |
61886f2a EA |
206 | struct pfile |
207 | { | |
208 | char *p_osid; /* old SID */ | |
209 | char *p_nsid; /* new SID */ | |
210 | char *p_user; /* user who did edit */ | |
211 | char *p_date; /* date of get */ | |
212 | char *p_time; /* time of get */ | |
daa96559 | 213 | char *p_aux; /* extra info at end */ |
61886f2a EA |
214 | }; |
215 | ||
56151b9e EA |
216 | char *SccsPath = SCCSPATH; /* pathname of SCCS files */ |
217 | # ifdef SCCSDIR | |
218 | char *SccsDir = SCCSDIR; /* directory to begin search from */ | |
d266e8cb | 219 | # else |
56151b9e | 220 | char *SccsDir = ""; |
d266e8cb | 221 | # endif |
27082f2b | 222 | char MyName[] = MYNAME; /* name used in messages */ |
629c0863 | 223 | int OutFile = -1; /* override output file for commands */ |
2a0234bf | 224 | bool RealUser; /* if set, running as real user */ |
27e36d02 EA |
225 | # ifdef DEBUG |
226 | bool Debug; /* turn on tracing */ | |
227 | # endif | |
41b548c8 EA |
228 | # ifndef V6 |
229 | extern char *getenv(); | |
230 | # endif V6 | |
017698aa RH |
231 | |
232 | char *gstrcat(), *strcat(); | |
233 | char *gstrncat(), *strncat(); | |
234 | char *gstrcpy(), *strcpy(); | |
235 | #define FBUFSIZ BUFSIZ | |
236 | #define PFILELG 120 | |
2d351698 | 237 | \f |
1cc2dcec EA |
238 | main(argc, argv) |
239 | int argc; | |
240 | char **argv; | |
241 | { | |
242 | register char *p; | |
1045e3ba | 243 | extern struct sccsprog *lookup(); |
e8a6a730 | 244 | register int i; |
41b548c8 EA |
245 | # ifndef V6 |
246 | # ifndef SCCSDIR | |
705c2473 EA |
247 | register struct passwd *pw; |
248 | extern struct passwd *getpwnam(); | |
017698aa | 249 | char buf[FBUFSIZ]; |
705c2473 | 250 | |
41b548c8 | 251 | /* pull "SccsDir" out of the environment (possibly) */ |
fd41f541 | 252 | p = getenv("PROJECTDIR"); |
705c2473 EA |
253 | if (p != NULL && p[0] != '\0') |
254 | { | |
255 | if (p[0] == '/') | |
256 | SccsDir = p; | |
257 | else | |
258 | { | |
259 | pw = getpwnam(p); | |
260 | if (pw == NULL) | |
261 | { | |
262 | usrerr("user %s does not exist", p); | |
263 | exit(EX_USAGE); | |
264 | } | |
017698aa RH |
265 | gstrcpy(buf, pw->pw_dir, sizeof(buf)); |
266 | gstrcat(buf, "/src", sizeof(buf)); | |
705c2473 EA |
267 | if (access(buf, 0) < 0) |
268 | { | |
017698aa RH |
269 | gstrcpy(buf, pw->pw_dir, sizeof(buf)); |
270 | gstrcat(buf, "/source", sizeof(buf)); | |
705c2473 EA |
271 | if (access(buf, 0) < 0) |
272 | { | |
273 | usrerr("project %s has no source!", p); | |
274 | exit(EX_USAGE); | |
275 | } | |
276 | } | |
277 | SccsDir = buf; | |
278 | } | |
279 | } | |
41b548c8 EA |
280 | # endif SCCSDIR |
281 | # endif V6 | |
282 | ||
1cc2dcec EA |
283 | /* |
284 | ** Detect and decode flags intended for this program. | |
285 | */ | |
286 | ||
a97ecd0d EA |
287 | if (argc < 2) |
288 | { | |
d266e8cb | 289 | fprintf(stderr, "Usage: %s [flags] command [flags]\n", MyName); |
a97ecd0d EA |
290 | exit(EX_USAGE); |
291 | } | |
292 | argv[argc] = NULL; | |
293 | ||
1045e3ba | 294 | if (lookup(argv[0]) == NULL) |
1cc2dcec | 295 | { |
1045e3ba | 296 | while ((p = *++argv) != NULL) |
1cc2dcec | 297 | { |
1045e3ba EA |
298 | if (*p != '-') |
299 | break; | |
300 | switch (*++p) | |
301 | { | |
302 | case 'r': /* run as real user */ | |
303 | setuid(getuid()); | |
304 | RealUser++; | |
305 | break; | |
306 | ||
56151b9e | 307 | # ifndef SCCSDIR |
1045e3ba EA |
308 | case 'p': /* path of sccs files */ |
309 | SccsPath = ++p; | |
e23f1541 EA |
310 | if (SccsPath[0] == '\0' && argv[1] != NULL) |
311 | SccsPath = *++argv; | |
1045e3ba EA |
312 | break; |
313 | ||
02ec3e87 EA |
314 | case 'd': /* directory to search from */ |
315 | SccsDir = ++p; | |
e23f1541 EA |
316 | if (SccsDir[0] == '\0' && argv[1] != NULL) |
317 | SccsDir = *++argv; | |
02ec3e87 | 318 | break; |
d266e8cb | 319 | # endif |
02ec3e87 | 320 | |
27e36d02 EA |
321 | # ifdef DEBUG |
322 | case 'T': /* trace */ | |
323 | Debug++; | |
324 | break; | |
325 | # endif | |
326 | ||
1045e3ba | 327 | default: |
d266e8cb | 328 | usrerr("unknown option -%s", p); |
1045e3ba EA |
329 | break; |
330 | } | |
1cc2dcec | 331 | } |
1045e3ba EA |
332 | if (SccsPath[0] == '\0') |
333 | SccsPath = "."; | |
1cc2dcec EA |
334 | } |
335 | ||
5e6a7fa9 | 336 | i = command(argv, FALSE, ""); |
e8a6a730 | 337 | exit(i); |
a97ecd0d | 338 | } |
2d351698 EA |
339 | \f |
340 | /* | |
e8a6a730 EA |
341 | ** COMMAND -- look up and perform a command |
342 | ** | |
343 | ** This routine is the guts of this program. Given an | |
344 | ** argument vector, it looks up the "command" (argv[0]) | |
345 | ** in the configuration table and does the necessary stuff. | |
346 | ** | |
347 | ** Parameters: | |
348 | ** argv -- an argument vector to process. | |
349 | ** forkflag -- if set, fork before executing the command. | |
1dbb3fe7 EA |
350 | ** editflag -- if set, only include flags listed in the |
351 | ** sccsklets field of the command descriptor. | |
352 | ** arg0 -- a space-seperated list of arguments to insert | |
353 | ** before argv. | |
e8a6a730 EA |
354 | ** |
355 | ** Returns: | |
356 | ** zero -- command executed ok. | |
357 | ** else -- error status. | |
358 | ** | |
359 | ** Side Effects: | |
360 | ** none. | |
361 | */ | |
a97ecd0d | 362 | |
5e6a7fa9 | 363 | command(argv, forkflag, arg0) |
a97ecd0d | 364 | char **argv; |
e672376b | 365 | bool forkflag; |
1dbb3fe7 | 366 | char *arg0; |
a97ecd0d EA |
367 | { |
368 | register struct sccsprog *cmd; | |
369 | register char *p; | |
017698aa | 370 | char buf[FBUFSIZ]; |
1045e3ba | 371 | extern struct sccsprog *lookup(); |
1dbb3fe7 EA |
372 | char *nav[1000]; |
373 | char **np; | |
c9ac6819 | 374 | register char **ap; |
9c3bf134 | 375 | register int i; |
c9ac6819 | 376 | register char *q; |
9c3bf134 | 377 | extern bool unedit(); |
e8a6a730 | 378 | int rval = 0; |
1dbb3fe7 EA |
379 | extern char *index(); |
380 | extern char *makefile(); | |
5e6a7fa9 | 381 | char *editchs; |
4cd62a3c | 382 | extern char *tail(); |
27e36d02 EA |
383 | |
384 | # ifdef DEBUG | |
385 | if (Debug) | |
386 | { | |
1dbb3fe7 EA |
387 | printf("command:\n\t\"%s\"\n", arg0); |
388 | for (np = argv; *np != NULL; np++) | |
389 | printf("\t\"%s\"\n", *np); | |
27e36d02 EA |
390 | } |
391 | # endif | |
2a0234bf | 392 | |
1dbb3fe7 EA |
393 | /* |
394 | ** Copy arguments. | |
e1e64d36 EA |
395 | ** Copy from arg0 & if necessary at most one arg |
396 | ** from argv[0]. | |
1dbb3fe7 EA |
397 | */ |
398 | ||
c9ac6819 | 399 | np = ap = &nav[1]; |
5e6a7fa9 | 400 | editchs = NULL; |
ccd9c6ea | 401 | for (p = arg0, q = buf; *p != '\0' && *p != '/'; ) |
1dbb3fe7 EA |
402 | { |
403 | *np++ = q; | |
404 | while (*p == ' ') | |
405 | p++; | |
5e6a7fa9 | 406 | while (*p != ' ' && *p != '\0' && *p != '/' && *p != ':') |
1dbb3fe7 EA |
407 | *q++ = *p++; |
408 | *q++ = '\0'; | |
5e6a7fa9 EA |
409 | if (*p == ':') |
410 | { | |
411 | editchs = q; | |
ccd9c6ea | 412 | while (*++p != '\0' && *p != '/' && *p != ' ') |
5e6a7fa9 EA |
413 | *q++ = *p; |
414 | *q++ = '\0'; | |
415 | } | |
1dbb3fe7 EA |
416 | } |
417 | *np = NULL; | |
c9ac6819 | 418 | if (*ap == NULL) |
1dbb3fe7 EA |
419 | *np++ = *argv++; |
420 | ||
1cc2dcec EA |
421 | /* |
422 | ** Look up command. | |
c9ac6819 | 423 | ** At this point, *ap is the command name. |
1cc2dcec EA |
424 | */ |
425 | ||
c9ac6819 | 426 | cmd = lookup(*ap); |
1045e3ba | 427 | if (cmd == NULL) |
1cc2dcec | 428 | { |
c9ac6819 | 429 | usrerr("Unknown command \"%s\"", *ap); |
e8a6a730 | 430 | return (EX_USAGE); |
1cc2dcec EA |
431 | } |
432 | ||
1dbb3fe7 EA |
433 | /* |
434 | ** Copy remaining arguments doing editing as appropriate. | |
435 | */ | |
436 | ||
437 | for (; *argv != NULL; argv++) | |
438 | { | |
439 | p = *argv; | |
440 | if (*p == '-') | |
441 | { | |
5e6a7fa9 | 442 | if (p[1] == '\0' || editchs == NULL || index(editchs, p[1]) != NULL) |
1dbb3fe7 EA |
443 | *np++ = p; |
444 | } | |
445 | else | |
446 | { | |
447 | if (!bitset(NO_SDOT, cmd->sccsflags)) | |
448 | p = makefile(p); | |
449 | if (p != NULL) | |
450 | *np++ = p; | |
451 | } | |
452 | } | |
453 | *np = NULL; | |
454 | ||
2a0234bf | 455 | /* |
a97ecd0d | 456 | ** Interpret operation associated with this command. |
2a0234bf EA |
457 | */ |
458 | ||
a97ecd0d EA |
459 | switch (cmd->sccsoper) |
460 | { | |
c9ac6819 EA |
461 | case SHELL: /* call a shell file */ |
462 | *ap = cmd->sccspath; | |
463 | *--ap = "sh"; | |
464 | rval = callprog("/bin/sh", cmd->sccsflags, ap, forkflag); | |
465 | break; | |
466 | ||
a97ecd0d | 467 | case PROG: /* call an sccs prog */ |
c9ac6819 | 468 | rval = callprog(cmd->sccspath, cmd->sccsflags, ap, forkflag); |
e672376b EA |
469 | break; |
470 | ||
471 | case CMACRO: /* command macro */ | |
e1e64d36 | 472 | /* step through & execute each part of the macro */ |
e672376b EA |
473 | for (p = cmd->sccspath; *p != '\0'; p++) |
474 | { | |
1dbb3fe7 EA |
475 | q = p; |
476 | while (*p != '\0' && *p != '/') | |
477 | p++; | |
5e6a7fa9 | 478 | rval = command(&ap[1], *p != '\0', q); |
e8a6a730 EA |
479 | if (rval != 0) |
480 | break; | |
e672376b | 481 | } |
e8a6a730 | 482 | break; |
a97ecd0d | 483 | |
4535945e | 484 | case FIX: /* fix a delta */ |
c9ac6819 | 485 | if (strncmp(ap[1], "-r", 2) != 0) |
4535945e | 486 | { |
d266e8cb | 487 | usrerr("-r flag needed for fix command"); |
e8a6a730 | 488 | rval = EX_USAGE; |
4535945e EA |
489 | break; |
490 | } | |
e1e64d36 EA |
491 | |
492 | /* get the version with all changes */ | |
5e6a7fa9 | 493 | rval = command(&ap[1], TRUE, "get -k"); |
e1e64d36 EA |
494 | |
495 | /* now remove that version from the s-file */ | |
e8a6a730 | 496 | if (rval == 0) |
5e6a7fa9 | 497 | rval = command(&ap[1], TRUE, "rmdel:r"); |
e1e64d36 EA |
498 | |
499 | /* and edit the old version (but don't clobber new vers) */ | |
e8a6a730 | 500 | if (rval == 0) |
5e6a7fa9 | 501 | rval = command(&ap[2], FALSE, "get -e -g"); |
e8a6a730 | 502 | break; |
4535945e | 503 | |
399058e3 | 504 | case CLEAN: |
c03d198b | 505 | rval = clean((int) cmd->sccspath, ap); |
399058e3 EA |
506 | break; |
507 | ||
61886f2a | 508 | case UNEDIT: |
c9ac6819 | 509 | for (argv = np = &ap[1]; *argv != NULL; argv++) |
9c3bf134 | 510 | { |
1dbb3fe7 EA |
511 | if (unedit(*argv)) |
512 | *np++ = *argv; | |
9c3bf134 | 513 | } |
1dbb3fe7 | 514 | *np = NULL; |
e1e64d36 EA |
515 | |
516 | /* get all the files that we unedited successfully */ | |
64dc8483 | 517 | if (np > &ap[1]) |
5e6a7fa9 | 518 | rval = command(&ap[1], FALSE, "get"); |
61886f2a EA |
519 | break; |
520 | ||
629c0863 EA |
521 | case DIFFS: /* diff between s-file & edit file */ |
522 | /* find the end of the flag arguments */ | |
523 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
524 | continue; | |
525 | argv = np; | |
526 | ||
527 | /* for each file, do the diff */ | |
98501620 | 528 | p = argv[1]; |
629c0863 EA |
529 | while (*np != NULL) |
530 | { | |
e1e64d36 | 531 | /* messy, but we need a null terminated argv */ |
629c0863 | 532 | *argv = *np++; |
98501620 | 533 | argv[1] = NULL; |
4cd62a3c | 534 | i = dodiff(ap, tail(*argv)); |
629c0863 EA |
535 | if (rval == 0) |
536 | rval = i; | |
98501620 | 537 | argv[1] = p; |
629c0863 EA |
538 | } |
539 | break; | |
540 | ||
73b61bcf EA |
541 | case DODIFF: /* internal diff call */ |
542 | setuid(getuid()); | |
543 | for (np = ap; *np != NULL; np++) | |
544 | { | |
545 | if ((*np)[0] == '-' && (*np)[1] == 'C') | |
546 | (*np)[1] = 'c'; | |
547 | } | |
548 | ||
549 | /* insert "-" argument */ | |
550 | np[1] = NULL; | |
551 | np[0] = np[-1]; | |
552 | np[-1] = "-"; | |
553 | ||
554 | /* execute the diff program of choice */ | |
555 | # ifndef V6 | |
556 | execvp("diff", ap); | |
557 | # endif | |
558 | execv(cmd->sccspath, argv); | |
559 | syserr("cannot exec %s", cmd->sccspath); | |
560 | exit(EX_OSERR); | |
561 | ||
ad6f33f2 | 562 | case ENTER: /* enter new sccs files */ |
9be60522 EA |
563 | /* skip over flag arguments */ |
564 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
565 | continue; | |
566 | argv = np; | |
567 | ||
568 | /* do an admin for each file */ | |
569 | p = argv[1]; | |
570 | while (*np != NULL) | |
571 | { | |
a40962f8 | 572 | printf("\n%s:\n", *np); |
017698aa RH |
573 | strcpy(buf, "-i"); |
574 | gstrcat(buf, *np, sizeof(buf)); | |
9be60522 EA |
575 | ap[0] = buf; |
576 | argv[0] = tail(*np); | |
577 | argv[1] = NULL; | |
578 | rval = command(ap, TRUE, "admin"); | |
579 | argv[1] = p; | |
580 | if (rval == 0) | |
581 | { | |
017698aa RH |
582 | strcpy(buf, ","); |
583 | gstrcat(buf, tail(*np), sizeof(buf)); | |
9be60522 EA |
584 | if (link(*np, buf) >= 0) |
585 | unlink(*np); | |
586 | } | |
587 | np++; | |
588 | } | |
589 | break; | |
590 | ||
a97ecd0d | 591 | default: |
d266e8cb | 592 | syserr("oper %d", cmd->sccsoper); |
a97ecd0d EA |
593 | exit(EX_SOFTWARE); |
594 | } | |
e8a6a730 EA |
595 | # ifdef DEBUG |
596 | if (Debug) | |
597 | printf("command: rval=%d\n", rval); | |
598 | # endif | |
599 | return (rval); | |
a97ecd0d | 600 | } |
2d351698 EA |
601 | \f |
602 | /* | |
1045e3ba EA |
603 | ** LOOKUP -- look up an SCCS command name. |
604 | ** | |
605 | ** Parameters: | |
606 | ** name -- the name of the command to look up. | |
607 | ** | |
608 | ** Returns: | |
609 | ** ptr to command descriptor for this command. | |
610 | ** NULL if no such entry. | |
611 | ** | |
612 | ** Side Effects: | |
613 | ** none. | |
614 | */ | |
615 | ||
616 | struct sccsprog * | |
617 | lookup(name) | |
618 | char *name; | |
619 | { | |
620 | register struct sccsprog *cmd; | |
621 | ||
622 | for (cmd = SccsProg; cmd->sccsname != NULL; cmd++) | |
623 | { | |
624 | if (strcmp(cmd->sccsname, name) == 0) | |
625 | return (cmd); | |
626 | } | |
627 | return (NULL); | |
628 | } | |
2d351698 EA |
629 | \f |
630 | /* | |
e8a6a730 EA |
631 | ** CALLPROG -- call a program |
632 | ** | |
1dbb3fe7 | 633 | ** Used to call the SCCS programs. |
e8a6a730 EA |
634 | ** |
635 | ** Parameters: | |
636 | ** progpath -- pathname of the program to call. | |
637 | ** flags -- status flags from the command descriptors. | |
638 | ** argv -- an argument vector to pass to the program. | |
639 | ** forkflag -- if true, fork before calling, else just | |
640 | ** exec. | |
641 | ** | |
642 | ** Returns: | |
643 | ** The exit status of the program. | |
644 | ** Nothing if forkflag == FALSE. | |
645 | ** | |
646 | ** Side Effects: | |
647 | ** Can exit if forkflag == FALSE. | |
648 | */ | |
4535945e | 649 | |
a97ecd0d EA |
650 | callprog(progpath, flags, argv, forkflag) |
651 | char *progpath; | |
652 | short flags; | |
653 | char **argv; | |
654 | bool forkflag; | |
655 | { | |
a97ecd0d | 656 | register int i; |
e672376b | 657 | auto int st; |
1dbb3fe7 EA |
658 | |
659 | # ifdef DEBUG | |
660 | if (Debug) | |
661 | { | |
662 | printf("callprog:\n"); | |
663 | for (i = 0; argv[i] != NULL; i++) | |
664 | printf("\t\"%s\"\n", argv[i]); | |
665 | } | |
666 | # endif | |
a97ecd0d EA |
667 | |
668 | if (*argv == NULL) | |
669 | return (-1); | |
2a0234bf | 670 | |
1cc2dcec | 671 | /* |
4535945e | 672 | ** Fork if appropriate. |
1cc2dcec EA |
673 | */ |
674 | ||
a97ecd0d EA |
675 | if (forkflag) |
676 | { | |
27e36d02 EA |
677 | # ifdef DEBUG |
678 | if (Debug) | |
679 | printf("Forking\n"); | |
680 | # endif | |
a97ecd0d EA |
681 | i = fork(); |
682 | if (i < 0) | |
683 | { | |
d266e8cb | 684 | syserr("cannot fork"); |
a97ecd0d EA |
685 | exit(EX_OSERR); |
686 | } | |
687 | else if (i > 0) | |
e672376b EA |
688 | { |
689 | wait(&st); | |
e8a6a730 EA |
690 | if ((st & 0377) == 0) |
691 | st = (st >> 8) & 0377; | |
629c0863 EA |
692 | if (OutFile >= 0) |
693 | { | |
694 | close(OutFile); | |
695 | OutFile = -1; | |
696 | } | |
e672376b EA |
697 | return (st); |
698 | } | |
a97ecd0d | 699 | } |
629c0863 EA |
700 | else if (OutFile >= 0) |
701 | { | |
702 | syserr("callprog: setting stdout w/o forking"); | |
703 | exit(EX_SOFTWARE); | |
704 | } | |
a97ecd0d | 705 | |
629c0863 | 706 | /* set protection as appropriate */ |
a97ecd0d EA |
707 | if (bitset(REALUSER, flags)) |
708 | setuid(getuid()); | |
a97ecd0d | 709 | |
629c0863 EA |
710 | /* change standard input & output if needed */ |
711 | if (OutFile >= 0) | |
712 | { | |
713 | close(1); | |
714 | dup(OutFile); | |
715 | close(OutFile); | |
716 | } | |
717 | ||
718 | /* call real SCCS program */ | |
4535945e | 719 | execv(progpath, argv); |
d266e8cb | 720 | syserr("cannot execute %s", progpath); |
1cc2dcec | 721 | exit(EX_UNAVAILABLE); |
64dc8483 | 722 | /*NOTREACHED*/ |
1cc2dcec | 723 | } |
2d351698 EA |
724 | \f |
725 | /* | |
e2758dc3 EA |
726 | ** MAKEFILE -- make filename of SCCS file |
727 | ** | |
728 | ** If the name passed is already the name of an SCCS file, | |
729 | ** just return it. Otherwise, munge the name into the name | |
730 | ** of the actual SCCS file. | |
731 | ** | |
732 | ** There are cases when it is not clear what you want to | |
733 | ** do. For example, if SccsPath is an absolute pathname | |
734 | ** and the name given is also an absolute pathname, we go | |
735 | ** for SccsPath (& only use the last component of the name | |
736 | ** passed) -- this is important for security reasons (if | |
737 | ** sccs is being used as a setuid front end), but not | |
738 | ** particularly intuitive. | |
739 | ** | |
740 | ** Parameters: | |
741 | ** name -- the file name to be munged. | |
742 | ** | |
743 | ** Returns: | |
744 | ** The pathname of the sccs file. | |
745 | ** NULL on error. | |
746 | ** | |
747 | ** Side Effects: | |
748 | ** none. | |
749 | */ | |
1cc2dcec EA |
750 | |
751 | char * | |
752 | makefile(name) | |
753 | char *name; | |
754 | { | |
755 | register char *p; | |
017698aa | 756 | char buf[3*FBUFSIZ]; |
1cc2dcec | 757 | extern char *malloc(); |
e2758dc3 | 758 | extern char *rindex(); |
8e7b9e7e EA |
759 | extern bool isdir(); |
760 | register char *q; | |
e2758dc3 EA |
761 | |
762 | p = rindex(name, '/'); | |
763 | if (p == NULL) | |
764 | p = name; | |
765 | else | |
766 | p++; | |
1cc2dcec EA |
767 | |
768 | /* | |
8e7b9e7e | 769 | ** See if the name can be used as-is. |
1cc2dcec EA |
770 | */ |
771 | ||
8e7b9e7e EA |
772 | if (SccsPath[0] != '/' || name[0] == '/' || strncmp(name, "./", 2) == 0) |
773 | { | |
774 | if (strncmp(p, "s.", 2) == 0) | |
775 | return (name); | |
776 | if (isdir(name)) | |
777 | return (name); | |
778 | } | |
e2758dc3 EA |
779 | |
780 | /* | |
8e7b9e7e | 781 | ** Create the actual pathname. |
e2758dc3 EA |
782 | */ |
783 | ||
e1e64d36 | 784 | /* first the directory part */ |
8e7b9e7e | 785 | if (name[0] != '/') |
1cc2dcec | 786 | { |
017698aa RH |
787 | gstrcpy(buf, SccsDir, sizeof(buf)); |
788 | gstrcat(buf, "/", sizeof(buf)); | |
e2758dc3 EA |
789 | } |
790 | else | |
017698aa | 791 | gstrcpy(buf, "", sizeof(buf)); |
e1e64d36 EA |
792 | |
793 | /* then the head of the pathname */ | |
8e7b9e7e EA |
794 | strncat(buf, name, p - name); |
795 | q = &buf[strlen(buf)]; | |
796 | strcpy(q, p); | |
797 | if (strncmp(p, "s.", 2) != 0 && !isdir(buf)) | |
e2758dc3 | 798 | { |
e1e64d36 | 799 | /* sorry, no; copy the SCCS pathname & the "s." */ |
017698aa RH |
800 | gstrcpy(q, SccsPath, sizeof(buf)); |
801 | gstrcat(buf, "/s.", sizeof(buf)); | |
e1e64d36 EA |
802 | |
803 | /* and now the end of the name */ | |
017698aa | 804 | gstrcat(buf, p, sizeof(buf)); |
e2758dc3 | 805 | } |
1cc2dcec | 806 | |
e1e64d36 | 807 | /* if i haven't changed it, why did I do all this? */ |
02ec3e87 EA |
808 | if (strcmp(buf, name) == 0) |
809 | p = name; | |
810 | ||
811 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
1cc2dcec | 812 | } |
399058e3 | 813 | \f/* |
8e7b9e7e EA |
814 | ** ISDIR -- return true if the argument is a directory. |
815 | ** | |
816 | ** Parameters: | |
817 | ** name -- the pathname of the file to check. | |
818 | ** | |
819 | ** Returns: | |
820 | ** TRUE if 'name' is a directory, FALSE otherwise. | |
821 | ** | |
822 | ** Side Effects: | |
823 | ** none. | |
824 | */ | |
825 | ||
826 | bool | |
827 | isdir(name) | |
828 | char *name; | |
829 | { | |
830 | struct stat stbuf; | |
831 | ||
832 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
833 | } | |
2d351698 EA |
834 | \f |
835 | /* | |
e2758dc3 EA |
836 | ** SAFEPATH -- determine whether a pathname is "safe" |
837 | ** | |
838 | ** "Safe" pathnames only allow you to get deeper into the | |
839 | ** directory structure, i.e., full pathnames and ".." are | |
840 | ** not allowed. | |
841 | ** | |
842 | ** Parameters: | |
843 | ** p -- the name to check. | |
844 | ** | |
845 | ** Returns: | |
846 | ** TRUE -- if the path is safe. | |
847 | ** FALSE -- if the path is not safe. | |
848 | ** | |
849 | ** Side Effects: | |
850 | ** Prints a message if the path is not safe. | |
851 | */ | |
852 | ||
853 | bool | |
854 | safepath(p) | |
855 | register char *p; | |
856 | { | |
857 | extern char *index(); | |
858 | ||
859 | if (*p != '/') | |
860 | { | |
861 | while (strncmp(p, "../", 3) != 0 && strcmp(p, "..") != 0) | |
862 | { | |
863 | p = index(p, '/'); | |
864 | if (p == NULL) | |
865 | return (TRUE); | |
866 | p++; | |
867 | } | |
868 | } | |
869 | ||
870 | printf("You may not use full pathnames or \"..\"\n"); | |
871 | return (FALSE); | |
872 | } | |
2d351698 EA |
873 | \f |
874 | /* | |
399058e3 EA |
875 | ** CLEAN -- clean out recreatable files |
876 | ** | |
877 | ** Any file for which an "s." file exists but no "p." file | |
878 | ** exists in the current directory is purged. | |
879 | ** | |
880 | ** Parameters: | |
c03d198b EA |
881 | ** mode -- tells whether this came from a "clean", "info", or |
882 | ** "check" command. | |
883 | ** argv -- the rest of the argument vector. | |
399058e3 EA |
884 | ** |
885 | ** Returns: | |
886 | ** none. | |
887 | ** | |
888 | ** Side Effects: | |
89819fbe EA |
889 | ** Removes files in the current directory. |
890 | ** Prints information regarding files being edited. | |
891 | ** Exits if a "check" command. | |
399058e3 EA |
892 | */ |
893 | ||
c03d198b | 894 | clean(mode, argv) |
89819fbe | 895 | int mode; |
c03d198b | 896 | char **argv; |
399058e3 | 897 | { |
440d5d81 | 898 | struct direct *dir; |
017698aa | 899 | char buf[FBUFSIZ]; |
705c2473 | 900 | char *bufend; |
440d5d81 | 901 | register DIR *dirfd; |
db4904e0 | 902 | register char *basefile; |
d7f27f60 | 903 | bool gotedit; |
c03d198b | 904 | bool gotpfent; |
bb9b2f29 | 905 | FILE *pfp; |
c03d198b EA |
906 | bool nobranch = FALSE; |
907 | extern struct pfile *getpfent(); | |
908 | register struct pfile *pf; | |
909 | register char **ap; | |
6aac25be EA |
910 | extern char *username(); |
911 | char *usernm = NULL; | |
705c2473 EA |
912 | char *subdir = NULL; |
913 | char *cmdname; | |
c03d198b EA |
914 | |
915 | /* | |
916 | ** Process the argv | |
917 | */ | |
918 | ||
705c2473 EA |
919 | cmdname = *argv; |
920 | for (ap = argv; *++ap != NULL; ) | |
c03d198b | 921 | { |
6aac25be EA |
922 | if (**ap == '-') |
923 | { | |
924 | /* we have a flag */ | |
925 | switch ((*ap)[1]) | |
926 | { | |
927 | case 'b': | |
928 | nobranch = TRUE; | |
929 | break; | |
930 | ||
931 | case 'u': | |
932 | if ((*ap)[2] != '\0') | |
933 | usernm = &(*ap)[2]; | |
934 | else if (ap[1] != NULL && ap[1][0] != '-') | |
935 | usernm = *++ap; | |
936 | else | |
937 | usernm = username(); | |
938 | break; | |
939 | } | |
940 | } | |
705c2473 EA |
941 | else |
942 | { | |
943 | if (subdir != NULL) | |
944 | usrerr("too many args"); | |
945 | else | |
946 | subdir = *ap; | |
947 | } | |
c03d198b | 948 | } |
399058e3 | 949 | |
e1e64d36 EA |
950 | /* |
951 | ** Find and open the SCCS directory. | |
952 | */ | |
953 | ||
017698aa | 954 | gstrcpy(buf, SccsDir, sizeof(buf)); |
0c925940 | 955 | if (buf[0] != '\0') |
017698aa | 956 | gstrcat(buf, "/", sizeof(buf)); |
705c2473 EA |
957 | if (subdir != NULL) |
958 | { | |
017698aa RH |
959 | gstrcat(buf, subdir, sizeof(buf)); |
960 | gstrcat(buf, "/", sizeof(buf)); | |
705c2473 | 961 | } |
017698aa | 962 | gstrcat(buf, SccsPath, sizeof(buf)); |
705c2473 | 963 | bufend = &buf[strlen(buf)]; |
e1e64d36 | 964 | |
440d5d81 | 965 | dirfd = opendir(buf); |
399058e3 EA |
966 | if (dirfd == NULL) |
967 | { | |
0c925940 | 968 | usrerr("cannot open %s", buf); |
e8a6a730 | 969 | return (EX_NOINPUT); |
399058e3 EA |
970 | } |
971 | ||
972 | /* | |
973 | ** Scan the SCCS directory looking for s. files. | |
e1e64d36 EA |
974 | ** gotedit tells whether we have tried to clean any |
975 | ** files that are being edited. | |
399058e3 EA |
976 | */ |
977 | ||
d7f27f60 | 978 | gotedit = FALSE; |
440d5d81 KM |
979 | while (dir = readdir(dirfd)) { |
980 | if (strncmp(dir->d_name, "s.", 2) != 0) | |
399058e3 EA |
981 | continue; |
982 | ||
983 | /* got an s. file -- see if the p. file exists */ | |
017698aa | 984 | gstrcpy(bufend, "/p.", sizeof(buf)); |
705c2473 | 985 | basefile = bufend + 3; |
017698aa | 986 | gstrcpy(basefile, &dir->d_name[2], sizeof(buf)); |
c03d198b EA |
987 | |
988 | /* | |
989 | ** open and scan the p-file. | |
990 | ** 'gotpfent' tells if we have found a valid p-file | |
991 | ** entry. | |
992 | */ | |
993 | ||
bb9b2f29 | 994 | pfp = fopen(buf, "r"); |
c03d198b | 995 | gotpfent = FALSE; |
bb9b2f29 | 996 | if (pfp != NULL) |
db4904e0 | 997 | { |
e1e64d36 | 998 | /* the file exists -- report it's contents */ |
c03d198b | 999 | while ((pf = getpfent(pfp)) != NULL) |
bdd50a56 | 1000 | { |
c03d198b EA |
1001 | if (nobranch && isbranch(pf->p_nsid)) |
1002 | continue; | |
6aac25be EA |
1003 | if (usernm != NULL && strcmp(usernm, pf->p_user) != 0 && mode != CLEANC) |
1004 | continue; | |
c03d198b EA |
1005 | gotedit = TRUE; |
1006 | gotpfent = TRUE; | |
1007 | if (mode == TELLC) | |
1008 | { | |
1009 | printf("%s\n", basefile); | |
1010 | break; | |
1011 | } | |
daa96559 EA |
1012 | printf("%12s: being edited: ", basefile); |
1013 | putpfent(pf, stdout); | |
bdd50a56 | 1014 | } |
bb9b2f29 | 1015 | fclose(pfp); |
db4904e0 | 1016 | } |
399058e3 EA |
1017 | |
1018 | /* the s. file exists and no p. file exists -- unlink the g-file */ | |
9e46d67d | 1019 | if (mode == CLEANC && !gotpfent) |
db4904e0 | 1020 | { |
017698aa RH |
1021 | char unlinkbuf[FBUFSIZ]; |
1022 | gstrcpy(unlinkbuf, &dir->d_name[2], sizeof(unlinkbuf)); | |
5fc21e10 | 1023 | unlink(unlinkbuf); |
db4904e0 | 1024 | } |
399058e3 EA |
1025 | } |
1026 | ||
e1e64d36 | 1027 | /* cleanup & report results */ |
440d5d81 | 1028 | closedir(dirfd); |
89819fbe | 1029 | if (!gotedit && mode == INFOC) |
6aac25be EA |
1030 | { |
1031 | printf("Nothing being edited"); | |
1032 | if (nobranch) | |
1033 | printf(" (on trunk)"); | |
1034 | if (usernm == NULL) | |
1035 | printf("\n"); | |
1036 | else | |
1037 | printf(" by %s\n", usernm); | |
1038 | } | |
89819fbe EA |
1039 | if (mode == CHECKC) |
1040 | exit(gotedit); | |
e8a6a730 | 1041 | return (EX_OK); |
399058e3 | 1042 | } |
2d351698 | 1043 | \f |
c03d198b EA |
1044 | /* |
1045 | ** ISBRANCH -- is the SID a branch? | |
1046 | ** | |
1047 | ** Parameters: | |
1048 | ** sid -- the sid to check. | |
1049 | ** | |
1050 | ** Returns: | |
1051 | ** TRUE if the sid represents a branch. | |
1052 | ** FALSE otherwise. | |
1053 | ** | |
1054 | ** Side Effects: | |
1055 | ** none. | |
1056 | */ | |
1057 | ||
1058 | isbranch(sid) | |
1059 | char *sid; | |
1060 | { | |
1061 | register char *p; | |
1062 | int dots; | |
1063 | ||
1064 | dots = 0; | |
1065 | for (p = sid; *p != '\0'; p++) | |
1066 | { | |
1067 | if (*p == '.') | |
1068 | dots++; | |
1069 | if (dots > 1) | |
1070 | return (TRUE); | |
1071 | } | |
1072 | return (FALSE); | |
1073 | } | |
1074 | \f | |
2d351698 | 1075 | /* |
61886f2a EA |
1076 | ** UNEDIT -- unedit a file |
1077 | ** | |
1078 | ** Checks to see that the current user is actually editting | |
1079 | ** the file and arranges that s/he is not editting it. | |
1080 | ** | |
1081 | ** Parameters: | |
fdca7108 | 1082 | ** fn -- the name of the file to be unedited. |
61886f2a EA |
1083 | ** |
1084 | ** Returns: | |
9c3bf134 EA |
1085 | ** TRUE -- if the file was successfully unedited. |
1086 | ** FALSE -- if the file was not unedited for some | |
1087 | ** reason. | |
61886f2a EA |
1088 | ** |
1089 | ** Side Effects: | |
1090 | ** fn is removed | |
1091 | ** entries are removed from pfile. | |
1092 | */ | |
1093 | ||
9c3bf134 | 1094 | bool |
61886f2a EA |
1095 | unedit(fn) |
1096 | char *fn; | |
1097 | { | |
1098 | register FILE *pfp; | |
299937a3 | 1099 | char *cp, *pfn; |
61886f2a EA |
1100 | static char tfn[] = "/tmp/sccsXXXXX"; |
1101 | FILE *tfp; | |
61886f2a EA |
1102 | register char *q; |
1103 | bool delete = FALSE; | |
1104 | bool others = FALSE; | |
1105 | char *myname; | |
6aac25be | 1106 | extern char *username(); |
61886f2a | 1107 | struct pfile *pent; |
c03d198b | 1108 | extern struct pfile *getpfent(); |
017698aa | 1109 | char buf[PFILELG]; |
1dbb3fe7 | 1110 | extern char *makefile(); |
61886f2a EA |
1111 | |
1112 | /* make "s." filename & find the trailing component */ | |
1113 | pfn = makefile(fn); | |
e2758dc3 EA |
1114 | if (pfn == NULL) |
1115 | return (FALSE); | |
1116 | q = rindex(pfn, '/'); | |
1117 | if (q == NULL) | |
1118 | q = &pfn[-1]; | |
1119 | if (q[1] != 's' || q[2] != '.') | |
61886f2a | 1120 | { |
d266e8cb | 1121 | usrerr("bad file name \"%s\"", fn); |
9c3bf134 | 1122 | return (FALSE); |
61886f2a EA |
1123 | } |
1124 | ||
e1e64d36 | 1125 | /* turn "s." into "p." & try to open it */ |
61886f2a EA |
1126 | *++q = 'p'; |
1127 | ||
1128 | pfp = fopen(pfn, "r"); | |
1129 | if (pfp == NULL) | |
1130 | { | |
fdca7108 | 1131 | printf("%12s: not being edited\n", fn); |
9c3bf134 | 1132 | return (FALSE); |
61886f2a EA |
1133 | } |
1134 | ||
e1e64d36 | 1135 | /* create temp file for editing p-file */ |
61886f2a EA |
1136 | mktemp(tfn); |
1137 | tfp = fopen(tfn, "w"); | |
1138 | if (tfp == NULL) | |
1139 | { | |
d266e8cb | 1140 | usrerr("cannot create \"%s\"", tfn); |
61886f2a EA |
1141 | exit(EX_OSERR); |
1142 | } | |
1143 | ||
e1e64d36 | 1144 | /* figure out who I am */ |
6aac25be | 1145 | myname = username(); |
e1e64d36 EA |
1146 | |
1147 | /* | |
1148 | ** Copy p-file to temp file, doing deletions as needed. | |
1149 | */ | |
1150 | ||
c03d198b | 1151 | while ((pent = getpfent(pfp)) != NULL) |
61886f2a EA |
1152 | { |
1153 | if (strcmp(pent->p_user, myname) == 0) | |
1154 | { | |
1155 | /* a match */ | |
1156 | delete++; | |
1157 | } | |
1158 | else | |
1159 | { | |
e1e64d36 | 1160 | /* output it again */ |
daa96559 | 1161 | putpfent(pent, tfp); |
61886f2a EA |
1162 | others++; |
1163 | } | |
1164 | } | |
1165 | ||
299937a3 SL |
1166 | /* |
1167 | * Before changing anything, make sure we can remove | |
1168 | * the file in question (assuming it exists). | |
1169 | */ | |
1170 | if (delete) { | |
1171 | extern int errno; | |
1172 | ||
1173 | cp = tail(fn); | |
1174 | errno = 0; | |
1175 | if (access(cp, 0) < 0 && errno != ENOENT) | |
1176 | goto bad; | |
1177 | if (errno == 0) | |
1178 | /* | |
1179 | * This is wrong, but the rest of the program | |
1180 | * has built in assumptions about "." as well, | |
1181 | * so why make unedit a special case? | |
1182 | */ | |
1183 | if (access(".", 2) < 0) { | |
1184 | bad: | |
1185 | printf("%12s: can't remove\n", cp); | |
1186 | fclose(tfp); | |
1187 | fclose(pfp); | |
1188 | unlink(tfn); | |
1189 | return (FALSE); | |
1190 | } | |
1191 | } | |
61886f2a EA |
1192 | /* do final cleanup */ |
1193 | if (others) | |
1194 | { | |
e1e64d36 | 1195 | /* copy it back (perhaps it should be linked?) */ |
61886f2a EA |
1196 | if (freopen(tfn, "r", tfp) == NULL) |
1197 | { | |
d266e8cb | 1198 | syserr("cannot reopen \"%s\"", tfn); |
61886f2a EA |
1199 | exit(EX_OSERR); |
1200 | } | |
1201 | if (freopen(pfn, "w", pfp) == NULL) | |
1202 | { | |
d266e8cb | 1203 | usrerr("cannot create \"%s\"", pfn); |
9c3bf134 | 1204 | return (FALSE); |
61886f2a EA |
1205 | } |
1206 | while (fgets(buf, sizeof buf, tfp) != NULL) | |
1207 | fputs(buf, pfp); | |
1208 | } | |
1209 | else | |
1210 | { | |
e1e64d36 | 1211 | /* it's empty -- remove it */ |
61886f2a EA |
1212 | unlink(pfn); |
1213 | } | |
1214 | fclose(tfp); | |
1215 | fclose(pfp); | |
1216 | unlink(tfn); | |
1217 | ||
e1e64d36 | 1218 | /* actually remove the g-file */ |
61886f2a EA |
1219 | if (delete) |
1220 | { | |
299937a3 SL |
1221 | /* |
1222 | * Since we've checked above, we can | |
1223 | * use the return from unlink to | |
1224 | * determine if the file existed or not. | |
1225 | */ | |
1226 | if (unlink(cp) >= 0) | |
1227 | printf("%12s: removed\n", cp); | |
9c3bf134 | 1228 | return (TRUE); |
61886f2a EA |
1229 | } |
1230 | else | |
1231 | { | |
fdca7108 | 1232 | printf("%12s: not being edited by you\n", fn); |
9c3bf134 | 1233 | return (FALSE); |
61886f2a EA |
1234 | } |
1235 | } | |
2d351698 | 1236 | \f |
629c0863 EA |
1237 | /* |
1238 | ** DODIFF -- diff an s-file against a g-file | |
1239 | ** | |
1240 | ** Parameters: | |
1241 | ** getv -- argv for the 'get' command. | |
1242 | ** gfile -- name of the g-file to diff against. | |
1243 | ** | |
1244 | ** Returns: | |
1245 | ** Result of get. | |
1246 | ** | |
1247 | ** Side Effects: | |
1248 | ** none. | |
1249 | */ | |
1250 | ||
1251 | dodiff(getv, gfile) | |
1252 | char **getv; | |
1253 | char *gfile; | |
1254 | { | |
1255 | int pipev[2]; | |
1256 | int rval; | |
1257 | register int i; | |
1258 | register int pid; | |
1259 | auto int st; | |
1260 | extern int errno; | |
1261 | int (*osig)(); | |
8dace933 EA |
1262 | register char *p; |
1263 | register char **ap; | |
1264 | bool makescript = FALSE; | |
629c0863 | 1265 | |
8dace933 EA |
1266 | for (ap = getv; *ap != NULL; ap++) |
1267 | { | |
1268 | p = *ap; | |
1269 | if (p[0] == '-') | |
1270 | { | |
1271 | switch (p[1]) | |
1272 | { | |
1273 | case 'E': | |
1274 | p[1] = 'e'; | |
1275 | makescript = TRUE; | |
1276 | break; | |
1277 | } | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | if (makescript) | |
1282 | { | |
1283 | printf("sccs edit %s\n", gfile); | |
1284 | printf("ed - %s << 'xxEOFxx'\n", gfile); | |
1285 | } | |
1286 | else | |
1287 | printf("\n------- %s -------\n", gfile); | |
73b61bcf | 1288 | fflush(stdout); |
d597ad9e | 1289 | |
e1e64d36 | 1290 | /* create context for diff to run in */ |
629c0863 EA |
1291 | if (pipe(pipev) < 0) |
1292 | { | |
1293 | syserr("dodiff: pipe failed"); | |
1294 | exit(EX_OSERR); | |
1295 | } | |
1296 | if ((pid = fork()) < 0) | |
1297 | { | |
1298 | syserr("dodiff: fork failed"); | |
1299 | exit(EX_OSERR); | |
1300 | } | |
1301 | else if (pid > 0) | |
1302 | { | |
1303 | /* in parent; run get */ | |
1304 | OutFile = pipev[1]; | |
1305 | close(pipev[0]); | |
73b61bcf | 1306 | rval = command(&getv[1], TRUE, "get:rcixt -s -k -p"); |
629c0863 EA |
1307 | osig = signal(SIGINT, SIG_IGN); |
1308 | while (((i = wait(&st)) >= 0 && i != pid) || errno == EINTR) | |
1309 | errno = 0; | |
1310 | signal(SIGINT, osig); | |
1311 | /* ignore result of diff */ | |
1312 | } | |
1313 | else | |
1314 | { | |
1315 | /* in child, run diff */ | |
1316 | if (close(pipev[1]) < 0 || close(0) < 0 || | |
1317 | dup(pipev[0]) != 0 || close(pipev[0]) < 0) | |
1318 | { | |
1319 | syserr("dodiff: magic failed"); | |
1320 | exit(EX_OSERR); | |
1321 | } | |
73b61bcf | 1322 | command(&getv[1], FALSE, "-diff:elsfhbC"); |
629c0863 | 1323 | } |
8dace933 EA |
1324 | |
1325 | if (makescript) | |
1326 | { | |
1327 | printf("w\n"); | |
1328 | printf("q\n"); | |
1329 | printf("'xxEOFxx'\n"); | |
1330 | printf("sccs delta %s\n", gfile); | |
1331 | } | |
1332 | ||
629c0863 EA |
1333 | return (rval); |
1334 | } | |
1335 | \f | |
4cd62a3c EA |
1336 | /* |
1337 | ** TAIL -- return tail of filename. | |
1338 | ** | |
1339 | ** Parameters: | |
1340 | ** fn -- the filename. | |
1341 | ** | |
1342 | ** Returns: | |
1343 | ** a pointer to the tail of the filename; e.g., given | |
1344 | ** "cmd/ls.c", "ls.c" is returned. | |
1345 | ** | |
1346 | ** Side Effects: | |
1347 | ** none. | |
1348 | */ | |
1349 | ||
1350 | char * | |
1351 | tail(fn) | |
1352 | register char *fn; | |
1353 | { | |
1354 | register char *p; | |
1355 | ||
1356 | for (p = fn; *p != 0; p++) | |
1357 | if (*p == '/' && p[1] != '\0' && p[1] != '/') | |
1358 | fn = &p[1]; | |
1359 | return (fn); | |
1360 | } | |
1361 | \f | |
2d351698 | 1362 | /* |
c03d198b | 1363 | ** GETPFENT -- get an entry from the p-file |
61886f2a EA |
1364 | ** |
1365 | ** Parameters: | |
1366 | ** pfp -- p-file file pointer | |
1367 | ** | |
1368 | ** Returns: | |
1369 | ** pointer to p-file struct for next entry | |
1370 | ** NULL on EOF or error | |
1371 | ** | |
1372 | ** Side Effects: | |
1373 | ** Each call wipes out results of previous call. | |
1374 | */ | |
1375 | ||
1376 | struct pfile * | |
c03d198b | 1377 | getpfent(pfp) |
61886f2a EA |
1378 | FILE *pfp; |
1379 | { | |
1380 | static struct pfile ent; | |
017698aa | 1381 | static char buf[PFILELG]; |
61886f2a EA |
1382 | register char *p; |
1383 | extern char *nextfield(); | |
1384 | ||
1385 | if (fgets(buf, sizeof buf, pfp) == NULL) | |
1386 | return (NULL); | |
1387 | ||
1388 | ent.p_osid = p = buf; | |
1389 | ent.p_nsid = p = nextfield(p); | |
1390 | ent.p_user = p = nextfield(p); | |
1391 | ent.p_date = p = nextfield(p); | |
1392 | ent.p_time = p = nextfield(p); | |
daa96559 | 1393 | ent.p_aux = p = nextfield(p); |
61886f2a EA |
1394 | |
1395 | return (&ent); | |
1396 | } | |
1397 | ||
1398 | ||
1399 | char * | |
1400 | nextfield(p) | |
1401 | register char *p; | |
1402 | { | |
1403 | if (p == NULL || *p == '\0') | |
1404 | return (NULL); | |
1405 | while (*p != ' ' && *p != '\n' && *p != '\0') | |
1406 | p++; | |
1407 | if (*p == '\n' || *p == '\0') | |
1408 | { | |
1409 | *p = '\0'; | |
1410 | return (NULL); | |
1411 | } | |
1412 | *p++ = '\0'; | |
1413 | return (p); | |
1414 | } | |
daa96559 EA |
1415 | \f/* |
1416 | ** PUTPFENT -- output a p-file entry to a file | |
1417 | ** | |
1418 | ** Parameters: | |
1419 | ** pf -- the p-file entry | |
1420 | ** f -- the file to put it on. | |
1421 | ** | |
1422 | ** Returns: | |
1423 | ** none. | |
1424 | ** | |
1425 | ** Side Effects: | |
1426 | ** pf is written onto file f. | |
1427 | */ | |
1428 | ||
1429 | putpfent(pf, f) | |
1430 | register struct pfile *pf; | |
1431 | register FILE *f; | |
1432 | { | |
1433 | fprintf(f, "%s %s %s %s %s", pf->p_osid, pf->p_nsid, | |
1434 | pf->p_user, pf->p_date, pf->p_time); | |
1435 | if (pf->p_aux != NULL) | |
1436 | fprintf(f, " %s", pf->p_aux); | |
1437 | else | |
1438 | fprintf(f, "\n"); | |
1439 | } | |
2d351698 EA |
1440 | \f |
1441 | /* | |
d266e8cb EA |
1442 | ** USRERR -- issue user-level error |
1443 | ** | |
1444 | ** Parameters: | |
1445 | ** f -- format string. | |
1446 | ** p1-p3 -- parameters to a printf. | |
1447 | ** | |
1448 | ** Returns: | |
1449 | ** -1 | |
1450 | ** | |
1451 | ** Side Effects: | |
1452 | ** none. | |
1453 | */ | |
1454 | ||
64dc8483 | 1455 | /*VARARGS1*/ |
d266e8cb EA |
1456 | usrerr(f, p1, p2, p3) |
1457 | char *f; | |
1458 | { | |
1459 | fprintf(stderr, "\n%s: ", MyName); | |
1460 | fprintf(stderr, f, p1, p2, p3); | |
1461 | fprintf(stderr, "\n"); | |
1462 | ||
1463 | return (-1); | |
1464 | } | |
2d351698 EA |
1465 | \f |
1466 | /* | |
d266e8cb EA |
1467 | ** SYSERR -- print system-generated error. |
1468 | ** | |
1469 | ** Parameters: | |
1470 | ** f -- format string to a printf. | |
1471 | ** p1, p2, p3 -- parameters to f. | |
1472 | ** | |
1473 | ** Returns: | |
1474 | ** never. | |
1475 | ** | |
1476 | ** Side Effects: | |
1477 | ** none. | |
1478 | */ | |
1479 | ||
64dc8483 | 1480 | /*VARARGS1*/ |
d266e8cb EA |
1481 | syserr(f, p1, p2, p3) |
1482 | char *f; | |
1483 | { | |
1484 | extern int errno; | |
1485 | ||
1486 | fprintf(stderr, "\n%s SYSERR: ", MyName); | |
1487 | fprintf(stderr, f, p1, p2, p3); | |
1488 | fprintf(stderr, "\n"); | |
1489 | if (errno == 0) | |
1490 | exit(EX_SOFTWARE); | |
1491 | else | |
1492 | { | |
64dc8483 | 1493 | perror(NULL); |
d266e8cb EA |
1494 | exit(EX_OSERR); |
1495 | } | |
1496 | } | |
6aac25be EA |
1497 | \f/* |
1498 | ** USERNAME -- return name of the current user | |
1499 | ** | |
1500 | ** Parameters: | |
1501 | ** none | |
1502 | ** | |
1503 | ** Returns: | |
1504 | ** name of current user | |
1505 | ** | |
1506 | ** Side Effects: | |
1507 | ** none | |
1508 | */ | |
1509 | ||
1510 | char * | |
1511 | username() | |
1512 | { | |
1513 | # ifdef UIDUSER | |
1514 | extern struct passwd *getpwuid(); | |
1515 | register struct passwd *pw; | |
1516 | ||
1517 | pw = getpwuid(getuid()); | |
1518 | if (pw == NULL) | |
1519 | { | |
1520 | syserr("who are you? (uid=%d)", getuid()); | |
1521 | exit(EX_OSERR); | |
1522 | } | |
1523 | return (pw->pw_name); | |
1524 | # else | |
86b78a2b | 1525 | extern char *getlogin(); |
d8a47f3b EA |
1526 | extern char *getenv(); |
1527 | register char *p; | |
86b78a2b | 1528 | |
d8a47f3b EA |
1529 | p = getenv("USER"); |
1530 | if (p == NULL || p[0] == '\0') | |
1531 | p = getlogin(); | |
1532 | return (p); | |
6aac25be EA |
1533 | # endif UIDUSER |
1534 | } | |
017698aa RH |
1535 | \f |
1536 | /* | |
1537 | ** Guarded string manipulation routines; the last argument | |
1538 | ** is the length of the buffer into which the strcpy or strcat | |
1539 | ** is to be done. | |
1540 | */ | |
1541 | char *gstrcat(to, from, length) | |
1542 | char *to, *from; | |
1543 | int length; | |
1544 | { | |
1545 | if (strlen(from) + strlen(to) >= length) { | |
1546 | gstrbotch(to, from); | |
1547 | } | |
1548 | return(strcat(to, from)); | |
1549 | } | |
1550 | ||
1551 | char *gstrncat(to, from, n, length) | |
1552 | char *to, *from; | |
1553 | int n; | |
1554 | int length; | |
1555 | { | |
1556 | if (n + strlen(to) >= length) { | |
1557 | gstrbotch(to, from); | |
1558 | } | |
1559 | return(strncat(to, from, n)); | |
1560 | } | |
1561 | ||
1562 | char *gstrcpy(to, from, length) | |
1563 | char *to, *from; | |
1564 | int length; | |
1565 | { | |
1566 | if (strlen(from) >= length) { | |
1567 | gstrbotch(from, (char *)0); | |
1568 | } | |
1569 | return(strcpy(to, from)); | |
1570 | } | |
1571 | gstrbotch(str1, str2) | |
1572 | char *str1, *str2; | |
1573 | { | |
1574 | usrerr("Filename(s) too long: %s %s", str1, str2); | |
1575 | } |