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840fc587 SL |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)sccs.c 1.71 (Berkeley) %G%"; | |
3 | #endif | |
4 | ||
1cc2dcec | 5 | # include <stdio.h> |
440d5d81 | 6 | # include <sys/param.h> |
1cc2dcec | 7 | # include <sys/stat.h> |
840fc587 | 8 | # include <sys/dir.h> |
629c0863 EA |
9 | # include <errno.h> |
10 | # include <signal.h> | |
1cc2dcec | 11 | # include <sysexits.h> |
705c2473 | 12 | # include <pwd.h> |
1cc2dcec | 13 | |
27e713f7 EA |
14 | /* |
15 | ** SCCS.C -- human-oriented front end to the SCCS system. | |
16 | ** | |
17 | ** Without trying to add any functionality to speak of, this | |
18 | ** program tries to make SCCS a little more accessible to human | |
19 | ** types. The main thing it does is automatically put the | |
20 | ** string "SCCS/s." on the front of names. Also, it has a | |
21 | ** couple of things that are designed to shorten frequent | |
22 | ** combinations, e.g., "delget" which expands to a "delta" | |
23 | ** and a "get". | |
24 | ** | |
25 | ** This program can also function as a setuid front end. | |
26 | ** To do this, you should copy the source, renaming it to | |
27 | ** whatever you want, e.g., "syssccs". Change any defaults | |
28 | ** in the program (e.g., syssccs might default -d to | |
29 | ** "/usr/src/sys"). Then recompile and put the result | |
30 | ** as setuid to whomever you want. In this mode, sccs | |
31 | ** knows to not run setuid for certain programs in order | |
32 | ** to preserve security, and so forth. | |
33 | ** | |
34 | ** Usage: | |
35 | ** sccs [flags] command [args] | |
36 | ** | |
37 | ** Flags: | |
38 | ** -d<dir> <dir> represents a directory to search | |
39 | ** out of. It should be a full pathname | |
40 | ** for general usage. E.g., if <dir> is | |
41 | ** "/usr/src/sys", then a reference to the | |
42 | ** file "dev/bio.c" becomes a reference to | |
43 | ** "/usr/src/sys/dev/bio.c". | |
44 | ** -p<path> prepends <path> to the final component | |
45 | ** of the pathname. By default, this is | |
46 | ** "SCCS". For example, in the -d example | |
47 | ** above, the path then gets modified to | |
48 | ** "/usr/src/sys/dev/SCCS/s.bio.c". In | |
49 | ** more common usage (without the -d flag), | |
50 | ** "prog.c" would get modified to | |
51 | ** "SCCS/s.prog.c". In both cases, the | |
52 | ** "s." gets automatically prepended. | |
53 | ** -r run as the real user. | |
54 | ** | |
55 | ** Commands: | |
56 | ** admin, | |
57 | ** get, | |
58 | ** delta, | |
59 | ** rmdel, | |
60 | ** chghist, | |
61 | ** etc. Straight out of SCCS; only difference | |
62 | ** is that pathnames get modified as | |
63 | ** described above. | |
64 | ** edit Macro for "get -e". | |
65 | ** unedit Removes a file being edited, knowing | |
66 | ** about p-files, etc. | |
67 | ** delget Macro for "delta" followed by "get". | |
68 | ** deledit Macro for "delta" followed by "get -e". | |
69 | ** info Tell what files being edited. | |
70 | ** clean Remove all files that can be | |
71 | ** regenerated from SCCS files. | |
d266e8cb | 72 | ** check Like info, but return exit status, for |
27e713f7 EA |
73 | ** use in makefiles. |
74 | ** fix Remove a top delta & reedit, but save | |
75 | ** the previous changes in that delta. | |
76 | ** | |
77 | ** Compilation Flags: | |
78 | ** UIDUSER -- determine who the user is by looking at the | |
79 | ** uid rather than the login name -- for machines | |
80 | ** where SCCS gets the user in this way. | |
56151b9e | 81 | ** SCCSDIR -- if defined, forces the -d flag to take on |
d266e8cb EA |
82 | ** this value. This is so that the setuid |
83 | ** aspects of this program cannot be abused. | |
56151b9e EA |
84 | ** This flag also disables the -p flag. |
85 | ** SCCSPATH -- the default for the -p flag. | |
27082f2b EA |
86 | ** MYNAME -- the title this program should print when it |
87 | ** gives error messages. | |
27e713f7 EA |
88 | ** |
89 | ** Compilation Instructions: | |
90 | ** cc -O -n -s sccs.c | |
27082f2b EA |
91 | ** The flags listed above can be -D defined to simplify |
92 | ** recompilation for variant versions. | |
27e713f7 EA |
93 | ** |
94 | ** Author: | |
95 | ** Eric Allman, UCB/INGRES | |
56151b9e | 96 | ** Copyright 1980 Regents of the University of California |
27e713f7 EA |
97 | */ |
98 | ||
2d351698 | 99 | \f |
56151b9e EA |
100 | /******************* Configuration Information ********************/ |
101 | ||
27082f2b | 102 | # ifndef SCCSPATH |
2d351698 | 103 | # define SCCSPATH "SCCS" /* pathname in which to find s-files */ |
27082f2b | 104 | # endif NOT SCCSPATH |
56151b9e | 105 | |
27082f2b EA |
106 | # ifndef MYNAME |
107 | # define MYNAME "sccs" /* name used for printing errors */ | |
108 | # endif NOT MYNAME | |
27e713f7 | 109 | |
2d351698 | 110 | # ifndef PROGPATH |
440d5d81 | 111 | # define PROGPATH(name) "/usr/local/name" /* place to find binaries */ |
2d351698 | 112 | # endif PROGPATH |
2a0234bf | 113 | |
2d351698 EA |
114 | /**************** End of Configuration Information ****************/ |
115 | \f | |
2a0234bf | 116 | typedef char bool; |
a97ecd0d EA |
117 | # define TRUE 1 |
118 | # define FALSE 0 | |
81dc6403 | 119 | |
e1e64d36 EA |
120 | # define bitset(bit, word) ((bool) ((bit) & (word))) |
121 | ||
1cc2dcec EA |
122 | struct sccsprog |
123 | { | |
124 | char *sccsname; /* name of SCCS routine */ | |
a97ecd0d EA |
125 | short sccsoper; /* opcode, see below */ |
126 | short sccsflags; /* flags, see below */ | |
1cc2dcec EA |
127 | char *sccspath; /* pathname of binary implementing */ |
128 | }; | |
129 | ||
a97ecd0d EA |
130 | /* values for sccsoper */ |
131 | # define PROG 0 /* call a program */ | |
e672376b | 132 | # define CMACRO 1 /* command substitution macro */ |
4535945e | 133 | # define FIX 2 /* fix a delta */ |
399058e3 | 134 | # define CLEAN 3 /* clean out recreatable files */ |
61886f2a | 135 | # define UNEDIT 4 /* unedit a file */ |
c9ac6819 | 136 | # define SHELL 5 /* call a shell file (like PROG) */ |
629c0863 | 137 | # define DIFFS 6 /* diff between sccs & file out */ |
73b61bcf | 138 | # define DODIFF 7 /* internal call to diff program */ |
ad6f33f2 | 139 | # define ENTER 8 /* enter new files */ |
a97ecd0d | 140 | |
2a0234bf | 141 | /* bits for sccsflags */ |
a97ecd0d EA |
142 | # define NO_SDOT 0001 /* no s. on front of args */ |
143 | # define REALUSER 0002 /* protected (e.g., admin) */ | |
1cc2dcec | 144 | |
89819fbe EA |
145 | /* modes for the "clean", "info", "check" ops */ |
146 | # define CLEANC 0 /* clean command */ | |
147 | # define INFOC 1 /* info command */ | |
148 | # define CHECKC 2 /* check command */ | |
bdd50a56 | 149 | # define TELLC 3 /* give list of files being edited */ |
89819fbe | 150 | |
2d351698 EA |
151 | /* |
152 | ** Description of commands known to this program. | |
153 | ** First argument puts the command into a class. Second arg is | |
154 | ** info regarding treatment of this command. Third arg is a | |
155 | ** list of flags this command accepts from macros, etc. Fourth | |
156 | ** arg is the pathname of the implementing program, or the | |
157 | ** macro definition, or the arg to a sub-algorithm. | |
158 | */ | |
7a8ba074 | 159 | |
1cc2dcec EA |
160 | struct sccsprog SccsProg[] = |
161 | { | |
6aac25be EA |
162 | "admin", PROG, REALUSER, PROGPATH(admin), |
163 | "chghist", PROG, 0, PROGPATH(rmdel), | |
164 | "comb", PROG, 0, PROGPATH(comb), | |
165 | "delta", PROG, 0, PROGPATH(delta), | |
166 | "get", PROG, 0, PROGPATH(get), | |
167 | "help", PROG, NO_SDOT, PROGPATH(help), | |
56b5d646 | 168 | "prs", PROG, 0, PROGPATH(prs), |
6aac25be EA |
169 | "prt", PROG, 0, PROGPATH(prt), |
170 | "rmdel", PROG, REALUSER, PROGPATH(rmdel), | |
56b5d646 | 171 | "val", PROG, 0, PROGPATH(val), |
6aac25be EA |
172 | "what", PROG, NO_SDOT, PROGPATH(what), |
173 | "sccsdiff", SHELL, REALUSER, PROGPATH(sccsdiff), | |
174 | "edit", CMACRO, NO_SDOT, "get -e", | |
175 | "delget", CMACRO, NO_SDOT, "delta:mysrp/get:ixbeskcl -t", | |
a479627e | 176 | "deledit", CMACRO, NO_SDOT, "delta:mysrp -n/get:ixbskcl -e -t -g", |
6aac25be EA |
177 | "fix", FIX, NO_SDOT, NULL, |
178 | "clean", CLEAN, REALUSER|NO_SDOT, (char *) CLEANC, | |
179 | "info", CLEAN, REALUSER|NO_SDOT, (char *) INFOC, | |
180 | "check", CLEAN, REALUSER|NO_SDOT, (char *) CHECKC, | |
181 | "tell", CLEAN, REALUSER|NO_SDOT, (char *) TELLC, | |
182 | "unedit", UNEDIT, NO_SDOT, NULL, | |
183 | "diffs", DIFFS, NO_SDOT|REALUSER, NULL, | |
73b61bcf | 184 | "-diff", DODIFF, NO_SDOT|REALUSER, PROGPATH(bdiff), |
5c7d3059 | 185 | "print", CMACRO, 0, "prt -e/get -p -m -s", |
d8d51f68 EA |
186 | "branch", CMACRO, NO_SDOT, |
187 | "get:ixrc -e -b/delta: -s -n -ybranch-place-holder/get:pl -e -t -g", | |
ad6f33f2 RH |
188 | "enter", ENTER, NO_SDOT, NULL, |
189 | "create", CMACRO, NO_SDOT, "enter/get:ixbeskcl -t", | |
6aac25be | 190 | NULL, -1, 0, NULL |
1cc2dcec EA |
191 | }; |
192 | ||
2d351698 | 193 | /* one line from a p-file */ |
61886f2a EA |
194 | struct pfile |
195 | { | |
196 | char *p_osid; /* old SID */ | |
197 | char *p_nsid; /* new SID */ | |
198 | char *p_user; /* user who did edit */ | |
199 | char *p_date; /* date of get */ | |
200 | char *p_time; /* time of get */ | |
daa96559 | 201 | char *p_aux; /* extra info at end */ |
61886f2a EA |
202 | }; |
203 | ||
56151b9e EA |
204 | char *SccsPath = SCCSPATH; /* pathname of SCCS files */ |
205 | # ifdef SCCSDIR | |
206 | char *SccsDir = SCCSDIR; /* directory to begin search from */ | |
d266e8cb | 207 | # else |
56151b9e | 208 | char *SccsDir = ""; |
d266e8cb | 209 | # endif |
27082f2b | 210 | char MyName[] = MYNAME; /* name used in messages */ |
629c0863 | 211 | int OutFile = -1; /* override output file for commands */ |
2a0234bf | 212 | bool RealUser; /* if set, running as real user */ |
27e36d02 EA |
213 | # ifdef DEBUG |
214 | bool Debug; /* turn on tracing */ | |
215 | # endif | |
41b548c8 EA |
216 | # ifndef V6 |
217 | extern char *getenv(); | |
218 | # endif V6 | |
017698aa RH |
219 | |
220 | char *gstrcat(), *strcat(); | |
221 | char *gstrncat(), *strncat(); | |
222 | char *gstrcpy(), *strcpy(); | |
223 | #define FBUFSIZ BUFSIZ | |
224 | #define PFILELG 120 | |
2d351698 | 225 | \f |
1cc2dcec EA |
226 | main(argc, argv) |
227 | int argc; | |
228 | char **argv; | |
229 | { | |
230 | register char *p; | |
1045e3ba | 231 | extern struct sccsprog *lookup(); |
e8a6a730 | 232 | register int i; |
41b548c8 EA |
233 | # ifndef V6 |
234 | # ifndef SCCSDIR | |
705c2473 EA |
235 | register struct passwd *pw; |
236 | extern struct passwd *getpwnam(); | |
017698aa | 237 | char buf[FBUFSIZ]; |
705c2473 | 238 | |
41b548c8 | 239 | /* pull "SccsDir" out of the environment (possibly) */ |
fd41f541 | 240 | p = getenv("PROJECTDIR"); |
705c2473 EA |
241 | if (p != NULL && p[0] != '\0') |
242 | { | |
243 | if (p[0] == '/') | |
244 | SccsDir = p; | |
245 | else | |
246 | { | |
247 | pw = getpwnam(p); | |
248 | if (pw == NULL) | |
249 | { | |
250 | usrerr("user %s does not exist", p); | |
251 | exit(EX_USAGE); | |
252 | } | |
017698aa RH |
253 | gstrcpy(buf, pw->pw_dir, sizeof(buf)); |
254 | gstrcat(buf, "/src", sizeof(buf)); | |
705c2473 EA |
255 | if (access(buf, 0) < 0) |
256 | { | |
017698aa RH |
257 | gstrcpy(buf, pw->pw_dir, sizeof(buf)); |
258 | gstrcat(buf, "/source", sizeof(buf)); | |
705c2473 EA |
259 | if (access(buf, 0) < 0) |
260 | { | |
261 | usrerr("project %s has no source!", p); | |
262 | exit(EX_USAGE); | |
263 | } | |
264 | } | |
265 | SccsDir = buf; | |
266 | } | |
267 | } | |
41b548c8 EA |
268 | # endif SCCSDIR |
269 | # endif V6 | |
270 | ||
1cc2dcec EA |
271 | /* |
272 | ** Detect and decode flags intended for this program. | |
273 | */ | |
274 | ||
a97ecd0d EA |
275 | if (argc < 2) |
276 | { | |
d266e8cb | 277 | fprintf(stderr, "Usage: %s [flags] command [flags]\n", MyName); |
a97ecd0d EA |
278 | exit(EX_USAGE); |
279 | } | |
280 | argv[argc] = NULL; | |
281 | ||
1045e3ba | 282 | if (lookup(argv[0]) == NULL) |
1cc2dcec | 283 | { |
1045e3ba | 284 | while ((p = *++argv) != NULL) |
1cc2dcec | 285 | { |
1045e3ba EA |
286 | if (*p != '-') |
287 | break; | |
288 | switch (*++p) | |
289 | { | |
290 | case 'r': /* run as real user */ | |
291 | setuid(getuid()); | |
292 | RealUser++; | |
293 | break; | |
294 | ||
56151b9e | 295 | # ifndef SCCSDIR |
1045e3ba EA |
296 | case 'p': /* path of sccs files */ |
297 | SccsPath = ++p; | |
e23f1541 EA |
298 | if (SccsPath[0] == '\0' && argv[1] != NULL) |
299 | SccsPath = *++argv; | |
1045e3ba EA |
300 | break; |
301 | ||
02ec3e87 EA |
302 | case 'd': /* directory to search from */ |
303 | SccsDir = ++p; | |
e23f1541 EA |
304 | if (SccsDir[0] == '\0' && argv[1] != NULL) |
305 | SccsDir = *++argv; | |
02ec3e87 | 306 | break; |
d266e8cb | 307 | # endif |
02ec3e87 | 308 | |
27e36d02 EA |
309 | # ifdef DEBUG |
310 | case 'T': /* trace */ | |
311 | Debug++; | |
312 | break; | |
313 | # endif | |
314 | ||
1045e3ba | 315 | default: |
d266e8cb | 316 | usrerr("unknown option -%s", p); |
1045e3ba EA |
317 | break; |
318 | } | |
1cc2dcec | 319 | } |
1045e3ba EA |
320 | if (SccsPath[0] == '\0') |
321 | SccsPath = "."; | |
1cc2dcec EA |
322 | } |
323 | ||
5e6a7fa9 | 324 | i = command(argv, FALSE, ""); |
e8a6a730 | 325 | exit(i); |
a97ecd0d | 326 | } |
2d351698 EA |
327 | \f |
328 | /* | |
e8a6a730 EA |
329 | ** COMMAND -- look up and perform a command |
330 | ** | |
331 | ** This routine is the guts of this program. Given an | |
332 | ** argument vector, it looks up the "command" (argv[0]) | |
333 | ** in the configuration table and does the necessary stuff. | |
334 | ** | |
335 | ** Parameters: | |
336 | ** argv -- an argument vector to process. | |
337 | ** forkflag -- if set, fork before executing the command. | |
1dbb3fe7 EA |
338 | ** editflag -- if set, only include flags listed in the |
339 | ** sccsklets field of the command descriptor. | |
340 | ** arg0 -- a space-seperated list of arguments to insert | |
341 | ** before argv. | |
e8a6a730 EA |
342 | ** |
343 | ** Returns: | |
344 | ** zero -- command executed ok. | |
345 | ** else -- error status. | |
346 | ** | |
347 | ** Side Effects: | |
348 | ** none. | |
349 | */ | |
a97ecd0d | 350 | |
5e6a7fa9 | 351 | command(argv, forkflag, arg0) |
a97ecd0d | 352 | char **argv; |
e672376b | 353 | bool forkflag; |
1dbb3fe7 | 354 | char *arg0; |
a97ecd0d EA |
355 | { |
356 | register struct sccsprog *cmd; | |
357 | register char *p; | |
017698aa | 358 | char buf[FBUFSIZ]; |
1045e3ba | 359 | extern struct sccsprog *lookup(); |
1dbb3fe7 EA |
360 | char *nav[1000]; |
361 | char **np; | |
c9ac6819 | 362 | register char **ap; |
9c3bf134 | 363 | register int i; |
c9ac6819 | 364 | register char *q; |
9c3bf134 | 365 | extern bool unedit(); |
e8a6a730 | 366 | int rval = 0; |
1dbb3fe7 EA |
367 | extern char *index(); |
368 | extern char *makefile(); | |
5e6a7fa9 | 369 | char *editchs; |
4cd62a3c | 370 | extern char *tail(); |
27e36d02 EA |
371 | |
372 | # ifdef DEBUG | |
373 | if (Debug) | |
374 | { | |
1dbb3fe7 EA |
375 | printf("command:\n\t\"%s\"\n", arg0); |
376 | for (np = argv; *np != NULL; np++) | |
377 | printf("\t\"%s\"\n", *np); | |
27e36d02 EA |
378 | } |
379 | # endif | |
2a0234bf | 380 | |
1dbb3fe7 EA |
381 | /* |
382 | ** Copy arguments. | |
e1e64d36 EA |
383 | ** Copy from arg0 & if necessary at most one arg |
384 | ** from argv[0]. | |
1dbb3fe7 EA |
385 | */ |
386 | ||
c9ac6819 | 387 | np = ap = &nav[1]; |
5e6a7fa9 | 388 | editchs = NULL; |
ccd9c6ea | 389 | for (p = arg0, q = buf; *p != '\0' && *p != '/'; ) |
1dbb3fe7 EA |
390 | { |
391 | *np++ = q; | |
392 | while (*p == ' ') | |
393 | p++; | |
5e6a7fa9 | 394 | while (*p != ' ' && *p != '\0' && *p != '/' && *p != ':') |
1dbb3fe7 EA |
395 | *q++ = *p++; |
396 | *q++ = '\0'; | |
5e6a7fa9 EA |
397 | if (*p == ':') |
398 | { | |
399 | editchs = q; | |
ccd9c6ea | 400 | while (*++p != '\0' && *p != '/' && *p != ' ') |
5e6a7fa9 EA |
401 | *q++ = *p; |
402 | *q++ = '\0'; | |
403 | } | |
1dbb3fe7 EA |
404 | } |
405 | *np = NULL; | |
c9ac6819 | 406 | if (*ap == NULL) |
1dbb3fe7 EA |
407 | *np++ = *argv++; |
408 | ||
1cc2dcec EA |
409 | /* |
410 | ** Look up command. | |
c9ac6819 | 411 | ** At this point, *ap is the command name. |
1cc2dcec EA |
412 | */ |
413 | ||
c9ac6819 | 414 | cmd = lookup(*ap); |
1045e3ba | 415 | if (cmd == NULL) |
1cc2dcec | 416 | { |
c9ac6819 | 417 | usrerr("Unknown command \"%s\"", *ap); |
e8a6a730 | 418 | return (EX_USAGE); |
1cc2dcec EA |
419 | } |
420 | ||
1dbb3fe7 EA |
421 | /* |
422 | ** Copy remaining arguments doing editing as appropriate. | |
423 | */ | |
424 | ||
425 | for (; *argv != NULL; argv++) | |
426 | { | |
427 | p = *argv; | |
428 | if (*p == '-') | |
429 | { | |
5e6a7fa9 | 430 | if (p[1] == '\0' || editchs == NULL || index(editchs, p[1]) != NULL) |
1dbb3fe7 EA |
431 | *np++ = p; |
432 | } | |
433 | else | |
434 | { | |
435 | if (!bitset(NO_SDOT, cmd->sccsflags)) | |
436 | p = makefile(p); | |
437 | if (p != NULL) | |
438 | *np++ = p; | |
439 | } | |
440 | } | |
441 | *np = NULL; | |
442 | ||
2a0234bf | 443 | /* |
a97ecd0d | 444 | ** Interpret operation associated with this command. |
2a0234bf EA |
445 | */ |
446 | ||
a97ecd0d EA |
447 | switch (cmd->sccsoper) |
448 | { | |
c9ac6819 EA |
449 | case SHELL: /* call a shell file */ |
450 | *ap = cmd->sccspath; | |
451 | *--ap = "sh"; | |
452 | rval = callprog("/bin/sh", cmd->sccsflags, ap, forkflag); | |
453 | break; | |
454 | ||
a97ecd0d | 455 | case PROG: /* call an sccs prog */ |
c9ac6819 | 456 | rval = callprog(cmd->sccspath, cmd->sccsflags, ap, forkflag); |
e672376b EA |
457 | break; |
458 | ||
459 | case CMACRO: /* command macro */ | |
e1e64d36 | 460 | /* step through & execute each part of the macro */ |
e672376b EA |
461 | for (p = cmd->sccspath; *p != '\0'; p++) |
462 | { | |
1dbb3fe7 EA |
463 | q = p; |
464 | while (*p != '\0' && *p != '/') | |
465 | p++; | |
5e6a7fa9 | 466 | rval = command(&ap[1], *p != '\0', q); |
e8a6a730 EA |
467 | if (rval != 0) |
468 | break; | |
e672376b | 469 | } |
e8a6a730 | 470 | break; |
a97ecd0d | 471 | |
4535945e | 472 | case FIX: /* fix a delta */ |
c9ac6819 | 473 | if (strncmp(ap[1], "-r", 2) != 0) |
4535945e | 474 | { |
d266e8cb | 475 | usrerr("-r flag needed for fix command"); |
e8a6a730 | 476 | rval = EX_USAGE; |
4535945e EA |
477 | break; |
478 | } | |
e1e64d36 EA |
479 | |
480 | /* get the version with all changes */ | |
5e6a7fa9 | 481 | rval = command(&ap[1], TRUE, "get -k"); |
e1e64d36 EA |
482 | |
483 | /* now remove that version from the s-file */ | |
e8a6a730 | 484 | if (rval == 0) |
5e6a7fa9 | 485 | rval = command(&ap[1], TRUE, "rmdel:r"); |
e1e64d36 EA |
486 | |
487 | /* and edit the old version (but don't clobber new vers) */ | |
e8a6a730 | 488 | if (rval == 0) |
5e6a7fa9 | 489 | rval = command(&ap[2], FALSE, "get -e -g"); |
e8a6a730 | 490 | break; |
4535945e | 491 | |
399058e3 | 492 | case CLEAN: |
c03d198b | 493 | rval = clean((int) cmd->sccspath, ap); |
399058e3 EA |
494 | break; |
495 | ||
61886f2a | 496 | case UNEDIT: |
c9ac6819 | 497 | for (argv = np = &ap[1]; *argv != NULL; argv++) |
9c3bf134 | 498 | { |
1dbb3fe7 EA |
499 | if (unedit(*argv)) |
500 | *np++ = *argv; | |
9c3bf134 | 501 | } |
1dbb3fe7 | 502 | *np = NULL; |
e1e64d36 EA |
503 | |
504 | /* get all the files that we unedited successfully */ | |
64dc8483 | 505 | if (np > &ap[1]) |
5e6a7fa9 | 506 | rval = command(&ap[1], FALSE, "get"); |
61886f2a EA |
507 | break; |
508 | ||
629c0863 EA |
509 | case DIFFS: /* diff between s-file & edit file */ |
510 | /* find the end of the flag arguments */ | |
511 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
512 | continue; | |
513 | argv = np; | |
514 | ||
515 | /* for each file, do the diff */ | |
98501620 | 516 | p = argv[1]; |
629c0863 EA |
517 | while (*np != NULL) |
518 | { | |
e1e64d36 | 519 | /* messy, but we need a null terminated argv */ |
629c0863 | 520 | *argv = *np++; |
98501620 | 521 | argv[1] = NULL; |
4cd62a3c | 522 | i = dodiff(ap, tail(*argv)); |
629c0863 EA |
523 | if (rval == 0) |
524 | rval = i; | |
98501620 | 525 | argv[1] = p; |
629c0863 EA |
526 | } |
527 | break; | |
528 | ||
73b61bcf EA |
529 | case DODIFF: /* internal diff call */ |
530 | setuid(getuid()); | |
531 | for (np = ap; *np != NULL; np++) | |
532 | { | |
533 | if ((*np)[0] == '-' && (*np)[1] == 'C') | |
534 | (*np)[1] = 'c'; | |
535 | } | |
536 | ||
537 | /* insert "-" argument */ | |
538 | np[1] = NULL; | |
539 | np[0] = np[-1]; | |
540 | np[-1] = "-"; | |
541 | ||
542 | /* execute the diff program of choice */ | |
543 | # ifndef V6 | |
544 | execvp("diff", ap); | |
545 | # endif | |
546 | execv(cmd->sccspath, argv); | |
547 | syserr("cannot exec %s", cmd->sccspath); | |
548 | exit(EX_OSERR); | |
549 | ||
ad6f33f2 | 550 | case ENTER: /* enter new sccs files */ |
9be60522 EA |
551 | /* skip over flag arguments */ |
552 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
553 | continue; | |
554 | argv = np; | |
555 | ||
556 | /* do an admin for each file */ | |
557 | p = argv[1]; | |
558 | while (*np != NULL) | |
559 | { | |
a40962f8 | 560 | printf("\n%s:\n", *np); |
017698aa RH |
561 | strcpy(buf, "-i"); |
562 | gstrcat(buf, *np, sizeof(buf)); | |
9be60522 EA |
563 | ap[0] = buf; |
564 | argv[0] = tail(*np); | |
565 | argv[1] = NULL; | |
566 | rval = command(ap, TRUE, "admin"); | |
567 | argv[1] = p; | |
568 | if (rval == 0) | |
569 | { | |
017698aa RH |
570 | strcpy(buf, ","); |
571 | gstrcat(buf, tail(*np), sizeof(buf)); | |
9be60522 EA |
572 | if (link(*np, buf) >= 0) |
573 | unlink(*np); | |
574 | } | |
575 | np++; | |
576 | } | |
577 | break; | |
578 | ||
a97ecd0d | 579 | default: |
d266e8cb | 580 | syserr("oper %d", cmd->sccsoper); |
a97ecd0d EA |
581 | exit(EX_SOFTWARE); |
582 | } | |
e8a6a730 EA |
583 | # ifdef DEBUG |
584 | if (Debug) | |
585 | printf("command: rval=%d\n", rval); | |
586 | # endif | |
587 | return (rval); | |
a97ecd0d | 588 | } |
2d351698 EA |
589 | \f |
590 | /* | |
1045e3ba EA |
591 | ** LOOKUP -- look up an SCCS command name. |
592 | ** | |
593 | ** Parameters: | |
594 | ** name -- the name of the command to look up. | |
595 | ** | |
596 | ** Returns: | |
597 | ** ptr to command descriptor for this command. | |
598 | ** NULL if no such entry. | |
599 | ** | |
600 | ** Side Effects: | |
601 | ** none. | |
602 | */ | |
603 | ||
604 | struct sccsprog * | |
605 | lookup(name) | |
606 | char *name; | |
607 | { | |
608 | register struct sccsprog *cmd; | |
609 | ||
610 | for (cmd = SccsProg; cmd->sccsname != NULL; cmd++) | |
611 | { | |
612 | if (strcmp(cmd->sccsname, name) == 0) | |
613 | return (cmd); | |
614 | } | |
615 | return (NULL); | |
616 | } | |
2d351698 EA |
617 | \f |
618 | /* | |
e8a6a730 EA |
619 | ** CALLPROG -- call a program |
620 | ** | |
1dbb3fe7 | 621 | ** Used to call the SCCS programs. |
e8a6a730 EA |
622 | ** |
623 | ** Parameters: | |
624 | ** progpath -- pathname of the program to call. | |
625 | ** flags -- status flags from the command descriptors. | |
626 | ** argv -- an argument vector to pass to the program. | |
627 | ** forkflag -- if true, fork before calling, else just | |
628 | ** exec. | |
629 | ** | |
630 | ** Returns: | |
631 | ** The exit status of the program. | |
632 | ** Nothing if forkflag == FALSE. | |
633 | ** | |
634 | ** Side Effects: | |
635 | ** Can exit if forkflag == FALSE. | |
636 | */ | |
4535945e | 637 | |
a97ecd0d EA |
638 | callprog(progpath, flags, argv, forkflag) |
639 | char *progpath; | |
640 | short flags; | |
641 | char **argv; | |
642 | bool forkflag; | |
643 | { | |
a97ecd0d | 644 | register int i; |
e672376b | 645 | auto int st; |
1dbb3fe7 EA |
646 | |
647 | # ifdef DEBUG | |
648 | if (Debug) | |
649 | { | |
650 | printf("callprog:\n"); | |
651 | for (i = 0; argv[i] != NULL; i++) | |
652 | printf("\t\"%s\"\n", argv[i]); | |
653 | } | |
654 | # endif | |
a97ecd0d EA |
655 | |
656 | if (*argv == NULL) | |
657 | return (-1); | |
2a0234bf | 658 | |
1cc2dcec | 659 | /* |
4535945e | 660 | ** Fork if appropriate. |
1cc2dcec EA |
661 | */ |
662 | ||
a97ecd0d EA |
663 | if (forkflag) |
664 | { | |
27e36d02 EA |
665 | # ifdef DEBUG |
666 | if (Debug) | |
667 | printf("Forking\n"); | |
668 | # endif | |
a97ecd0d EA |
669 | i = fork(); |
670 | if (i < 0) | |
671 | { | |
d266e8cb | 672 | syserr("cannot fork"); |
a97ecd0d EA |
673 | exit(EX_OSERR); |
674 | } | |
675 | else if (i > 0) | |
e672376b EA |
676 | { |
677 | wait(&st); | |
e8a6a730 EA |
678 | if ((st & 0377) == 0) |
679 | st = (st >> 8) & 0377; | |
629c0863 EA |
680 | if (OutFile >= 0) |
681 | { | |
682 | close(OutFile); | |
683 | OutFile = -1; | |
684 | } | |
e672376b EA |
685 | return (st); |
686 | } | |
a97ecd0d | 687 | } |
629c0863 EA |
688 | else if (OutFile >= 0) |
689 | { | |
690 | syserr("callprog: setting stdout w/o forking"); | |
691 | exit(EX_SOFTWARE); | |
692 | } | |
a97ecd0d | 693 | |
629c0863 | 694 | /* set protection as appropriate */ |
a97ecd0d EA |
695 | if (bitset(REALUSER, flags)) |
696 | setuid(getuid()); | |
a97ecd0d | 697 | |
629c0863 EA |
698 | /* change standard input & output if needed */ |
699 | if (OutFile >= 0) | |
700 | { | |
701 | close(1); | |
702 | dup(OutFile); | |
703 | close(OutFile); | |
704 | } | |
705 | ||
706 | /* call real SCCS program */ | |
4535945e | 707 | execv(progpath, argv); |
d266e8cb | 708 | syserr("cannot execute %s", progpath); |
1cc2dcec | 709 | exit(EX_UNAVAILABLE); |
64dc8483 | 710 | /*NOTREACHED*/ |
1cc2dcec | 711 | } |
2d351698 EA |
712 | \f |
713 | /* | |
e2758dc3 EA |
714 | ** MAKEFILE -- make filename of SCCS file |
715 | ** | |
716 | ** If the name passed is already the name of an SCCS file, | |
717 | ** just return it. Otherwise, munge the name into the name | |
718 | ** of the actual SCCS file. | |
719 | ** | |
720 | ** There are cases when it is not clear what you want to | |
721 | ** do. For example, if SccsPath is an absolute pathname | |
722 | ** and the name given is also an absolute pathname, we go | |
723 | ** for SccsPath (& only use the last component of the name | |
724 | ** passed) -- this is important for security reasons (if | |
725 | ** sccs is being used as a setuid front end), but not | |
726 | ** particularly intuitive. | |
727 | ** | |
728 | ** Parameters: | |
729 | ** name -- the file name to be munged. | |
730 | ** | |
731 | ** Returns: | |
732 | ** The pathname of the sccs file. | |
733 | ** NULL on error. | |
734 | ** | |
735 | ** Side Effects: | |
736 | ** none. | |
737 | */ | |
1cc2dcec EA |
738 | |
739 | char * | |
740 | makefile(name) | |
741 | char *name; | |
742 | { | |
743 | register char *p; | |
017698aa | 744 | char buf[3*FBUFSIZ]; |
1cc2dcec | 745 | extern char *malloc(); |
e2758dc3 | 746 | extern char *rindex(); |
8e7b9e7e EA |
747 | extern bool isdir(); |
748 | register char *q; | |
e2758dc3 EA |
749 | |
750 | p = rindex(name, '/'); | |
751 | if (p == NULL) | |
752 | p = name; | |
753 | else | |
754 | p++; | |
1cc2dcec EA |
755 | |
756 | /* | |
8e7b9e7e | 757 | ** See if the name can be used as-is. |
1cc2dcec EA |
758 | */ |
759 | ||
8e7b9e7e EA |
760 | if (SccsPath[0] != '/' || name[0] == '/' || strncmp(name, "./", 2) == 0) |
761 | { | |
762 | if (strncmp(p, "s.", 2) == 0) | |
763 | return (name); | |
764 | if (isdir(name)) | |
765 | return (name); | |
766 | } | |
e2758dc3 EA |
767 | |
768 | /* | |
8e7b9e7e | 769 | ** Create the actual pathname. |
e2758dc3 EA |
770 | */ |
771 | ||
e1e64d36 | 772 | /* first the directory part */ |
8e7b9e7e | 773 | if (name[0] != '/') |
1cc2dcec | 774 | { |
017698aa RH |
775 | gstrcpy(buf, SccsDir, sizeof(buf)); |
776 | gstrcat(buf, "/", sizeof(buf)); | |
e2758dc3 EA |
777 | } |
778 | else | |
017698aa | 779 | gstrcpy(buf, "", sizeof(buf)); |
e1e64d36 EA |
780 | |
781 | /* then the head of the pathname */ | |
8e7b9e7e EA |
782 | strncat(buf, name, p - name); |
783 | q = &buf[strlen(buf)]; | |
784 | strcpy(q, p); | |
785 | if (strncmp(p, "s.", 2) != 0 && !isdir(buf)) | |
e2758dc3 | 786 | { |
e1e64d36 | 787 | /* sorry, no; copy the SCCS pathname & the "s." */ |
017698aa RH |
788 | gstrcpy(q, SccsPath, sizeof(buf)); |
789 | gstrcat(buf, "/s.", sizeof(buf)); | |
e1e64d36 EA |
790 | |
791 | /* and now the end of the name */ | |
017698aa | 792 | gstrcat(buf, p, sizeof(buf)); |
e2758dc3 | 793 | } |
1cc2dcec | 794 | |
e1e64d36 | 795 | /* if i haven't changed it, why did I do all this? */ |
02ec3e87 EA |
796 | if (strcmp(buf, name) == 0) |
797 | p = name; | |
798 | ||
799 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
1cc2dcec | 800 | } |
399058e3 | 801 | \f/* |
8e7b9e7e EA |
802 | ** ISDIR -- return true if the argument is a directory. |
803 | ** | |
804 | ** Parameters: | |
805 | ** name -- the pathname of the file to check. | |
806 | ** | |
807 | ** Returns: | |
808 | ** TRUE if 'name' is a directory, FALSE otherwise. | |
809 | ** | |
810 | ** Side Effects: | |
811 | ** none. | |
812 | */ | |
813 | ||
814 | bool | |
815 | isdir(name) | |
816 | char *name; | |
817 | { | |
818 | struct stat stbuf; | |
819 | ||
820 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
821 | } | |
2d351698 EA |
822 | \f |
823 | /* | |
e2758dc3 EA |
824 | ** SAFEPATH -- determine whether a pathname is "safe" |
825 | ** | |
826 | ** "Safe" pathnames only allow you to get deeper into the | |
827 | ** directory structure, i.e., full pathnames and ".." are | |
828 | ** not allowed. | |
829 | ** | |
830 | ** Parameters: | |
831 | ** p -- the name to check. | |
832 | ** | |
833 | ** Returns: | |
834 | ** TRUE -- if the path is safe. | |
835 | ** FALSE -- if the path is not safe. | |
836 | ** | |
837 | ** Side Effects: | |
838 | ** Prints a message if the path is not safe. | |
839 | */ | |
840 | ||
841 | bool | |
842 | safepath(p) | |
843 | register char *p; | |
844 | { | |
845 | extern char *index(); | |
846 | ||
847 | if (*p != '/') | |
848 | { | |
849 | while (strncmp(p, "../", 3) != 0 && strcmp(p, "..") != 0) | |
850 | { | |
851 | p = index(p, '/'); | |
852 | if (p == NULL) | |
853 | return (TRUE); | |
854 | p++; | |
855 | } | |
856 | } | |
857 | ||
858 | printf("You may not use full pathnames or \"..\"\n"); | |
859 | return (FALSE); | |
860 | } | |
2d351698 EA |
861 | \f |
862 | /* | |
399058e3 EA |
863 | ** CLEAN -- clean out recreatable files |
864 | ** | |
865 | ** Any file for which an "s." file exists but no "p." file | |
866 | ** exists in the current directory is purged. | |
867 | ** | |
868 | ** Parameters: | |
c03d198b EA |
869 | ** mode -- tells whether this came from a "clean", "info", or |
870 | ** "check" command. | |
871 | ** argv -- the rest of the argument vector. | |
399058e3 EA |
872 | ** |
873 | ** Returns: | |
874 | ** none. | |
875 | ** | |
876 | ** Side Effects: | |
89819fbe EA |
877 | ** Removes files in the current directory. |
878 | ** Prints information regarding files being edited. | |
879 | ** Exits if a "check" command. | |
399058e3 EA |
880 | */ |
881 | ||
c03d198b | 882 | clean(mode, argv) |
89819fbe | 883 | int mode; |
c03d198b | 884 | char **argv; |
399058e3 | 885 | { |
440d5d81 | 886 | struct direct *dir; |
017698aa | 887 | char buf[FBUFSIZ]; |
705c2473 | 888 | char *bufend; |
440d5d81 | 889 | register DIR *dirfd; |
db4904e0 | 890 | register char *basefile; |
d7f27f60 | 891 | bool gotedit; |
c03d198b | 892 | bool gotpfent; |
bb9b2f29 | 893 | FILE *pfp; |
c03d198b EA |
894 | bool nobranch = FALSE; |
895 | extern struct pfile *getpfent(); | |
896 | register struct pfile *pf; | |
897 | register char **ap; | |
6aac25be EA |
898 | extern char *username(); |
899 | char *usernm = NULL; | |
705c2473 EA |
900 | char *subdir = NULL; |
901 | char *cmdname; | |
c03d198b EA |
902 | |
903 | /* | |
904 | ** Process the argv | |
905 | */ | |
906 | ||
705c2473 EA |
907 | cmdname = *argv; |
908 | for (ap = argv; *++ap != NULL; ) | |
c03d198b | 909 | { |
6aac25be EA |
910 | if (**ap == '-') |
911 | { | |
912 | /* we have a flag */ | |
913 | switch ((*ap)[1]) | |
914 | { | |
915 | case 'b': | |
916 | nobranch = TRUE; | |
917 | break; | |
918 | ||
919 | case 'u': | |
920 | if ((*ap)[2] != '\0') | |
921 | usernm = &(*ap)[2]; | |
922 | else if (ap[1] != NULL && ap[1][0] != '-') | |
923 | usernm = *++ap; | |
924 | else | |
925 | usernm = username(); | |
926 | break; | |
927 | } | |
928 | } | |
705c2473 EA |
929 | else |
930 | { | |
931 | if (subdir != NULL) | |
932 | usrerr("too many args"); | |
933 | else | |
934 | subdir = *ap; | |
935 | } | |
c03d198b | 936 | } |
399058e3 | 937 | |
e1e64d36 EA |
938 | /* |
939 | ** Find and open the SCCS directory. | |
940 | */ | |
941 | ||
017698aa | 942 | gstrcpy(buf, SccsDir, sizeof(buf)); |
0c925940 | 943 | if (buf[0] != '\0') |
017698aa | 944 | gstrcat(buf, "/", sizeof(buf)); |
705c2473 EA |
945 | if (subdir != NULL) |
946 | { | |
017698aa RH |
947 | gstrcat(buf, subdir, sizeof(buf)); |
948 | gstrcat(buf, "/", sizeof(buf)); | |
705c2473 | 949 | } |
017698aa | 950 | gstrcat(buf, SccsPath, sizeof(buf)); |
705c2473 | 951 | bufend = &buf[strlen(buf)]; |
e1e64d36 | 952 | |
440d5d81 | 953 | dirfd = opendir(buf); |
399058e3 EA |
954 | if (dirfd == NULL) |
955 | { | |
0c925940 | 956 | usrerr("cannot open %s", buf); |
e8a6a730 | 957 | return (EX_NOINPUT); |
399058e3 EA |
958 | } |
959 | ||
960 | /* | |
961 | ** Scan the SCCS directory looking for s. files. | |
e1e64d36 EA |
962 | ** gotedit tells whether we have tried to clean any |
963 | ** files that are being edited. | |
399058e3 EA |
964 | */ |
965 | ||
d7f27f60 | 966 | gotedit = FALSE; |
440d5d81 KM |
967 | while (dir = readdir(dirfd)) { |
968 | if (strncmp(dir->d_name, "s.", 2) != 0) | |
399058e3 EA |
969 | continue; |
970 | ||
971 | /* got an s. file -- see if the p. file exists */ | |
017698aa | 972 | gstrcpy(bufend, "/p.", sizeof(buf)); |
705c2473 | 973 | basefile = bufend + 3; |
017698aa | 974 | gstrcpy(basefile, &dir->d_name[2], sizeof(buf)); |
c03d198b EA |
975 | |
976 | /* | |
977 | ** open and scan the p-file. | |
978 | ** 'gotpfent' tells if we have found a valid p-file | |
979 | ** entry. | |
980 | */ | |
981 | ||
bb9b2f29 | 982 | pfp = fopen(buf, "r"); |
c03d198b | 983 | gotpfent = FALSE; |
bb9b2f29 | 984 | if (pfp != NULL) |
db4904e0 | 985 | { |
e1e64d36 | 986 | /* the file exists -- report it's contents */ |
c03d198b | 987 | while ((pf = getpfent(pfp)) != NULL) |
bdd50a56 | 988 | { |
c03d198b EA |
989 | if (nobranch && isbranch(pf->p_nsid)) |
990 | continue; | |
6aac25be EA |
991 | if (usernm != NULL && strcmp(usernm, pf->p_user) != 0 && mode != CLEANC) |
992 | continue; | |
c03d198b EA |
993 | gotedit = TRUE; |
994 | gotpfent = TRUE; | |
995 | if (mode == TELLC) | |
996 | { | |
997 | printf("%s\n", basefile); | |
998 | break; | |
999 | } | |
daa96559 EA |
1000 | printf("%12s: being edited: ", basefile); |
1001 | putpfent(pf, stdout); | |
bdd50a56 | 1002 | } |
bb9b2f29 | 1003 | fclose(pfp); |
db4904e0 | 1004 | } |
399058e3 EA |
1005 | |
1006 | /* the s. file exists and no p. file exists -- unlink the g-file */ | |
9e46d67d | 1007 | if (mode == CLEANC && !gotpfent) |
db4904e0 | 1008 | { |
017698aa RH |
1009 | char unlinkbuf[FBUFSIZ]; |
1010 | gstrcpy(unlinkbuf, &dir->d_name[2], sizeof(unlinkbuf)); | |
5fc21e10 | 1011 | unlink(unlinkbuf); |
db4904e0 | 1012 | } |
399058e3 EA |
1013 | } |
1014 | ||
e1e64d36 | 1015 | /* cleanup & report results */ |
440d5d81 | 1016 | closedir(dirfd); |
89819fbe | 1017 | if (!gotedit && mode == INFOC) |
6aac25be EA |
1018 | { |
1019 | printf("Nothing being edited"); | |
1020 | if (nobranch) | |
1021 | printf(" (on trunk)"); | |
1022 | if (usernm == NULL) | |
1023 | printf("\n"); | |
1024 | else | |
1025 | printf(" by %s\n", usernm); | |
1026 | } | |
89819fbe EA |
1027 | if (mode == CHECKC) |
1028 | exit(gotedit); | |
e8a6a730 | 1029 | return (EX_OK); |
399058e3 | 1030 | } |
2d351698 | 1031 | \f |
c03d198b EA |
1032 | /* |
1033 | ** ISBRANCH -- is the SID a branch? | |
1034 | ** | |
1035 | ** Parameters: | |
1036 | ** sid -- the sid to check. | |
1037 | ** | |
1038 | ** Returns: | |
1039 | ** TRUE if the sid represents a branch. | |
1040 | ** FALSE otherwise. | |
1041 | ** | |
1042 | ** Side Effects: | |
1043 | ** none. | |
1044 | */ | |
1045 | ||
1046 | isbranch(sid) | |
1047 | char *sid; | |
1048 | { | |
1049 | register char *p; | |
1050 | int dots; | |
1051 | ||
1052 | dots = 0; | |
1053 | for (p = sid; *p != '\0'; p++) | |
1054 | { | |
1055 | if (*p == '.') | |
1056 | dots++; | |
1057 | if (dots > 1) | |
1058 | return (TRUE); | |
1059 | } | |
1060 | return (FALSE); | |
1061 | } | |
1062 | \f | |
2d351698 | 1063 | /* |
61886f2a EA |
1064 | ** UNEDIT -- unedit a file |
1065 | ** | |
1066 | ** Checks to see that the current user is actually editting | |
1067 | ** the file and arranges that s/he is not editting it. | |
1068 | ** | |
1069 | ** Parameters: | |
fdca7108 | 1070 | ** fn -- the name of the file to be unedited. |
61886f2a EA |
1071 | ** |
1072 | ** Returns: | |
9c3bf134 EA |
1073 | ** TRUE -- if the file was successfully unedited. |
1074 | ** FALSE -- if the file was not unedited for some | |
1075 | ** reason. | |
61886f2a EA |
1076 | ** |
1077 | ** Side Effects: | |
1078 | ** fn is removed | |
1079 | ** entries are removed from pfile. | |
1080 | */ | |
1081 | ||
9c3bf134 | 1082 | bool |
61886f2a EA |
1083 | unedit(fn) |
1084 | char *fn; | |
1085 | { | |
1086 | register FILE *pfp; | |
299937a3 | 1087 | char *cp, *pfn; |
61886f2a EA |
1088 | static char tfn[] = "/tmp/sccsXXXXX"; |
1089 | FILE *tfp; | |
61886f2a EA |
1090 | register char *q; |
1091 | bool delete = FALSE; | |
1092 | bool others = FALSE; | |
1093 | char *myname; | |
6aac25be | 1094 | extern char *username(); |
61886f2a | 1095 | struct pfile *pent; |
c03d198b | 1096 | extern struct pfile *getpfent(); |
017698aa | 1097 | char buf[PFILELG]; |
1dbb3fe7 | 1098 | extern char *makefile(); |
61886f2a EA |
1099 | |
1100 | /* make "s." filename & find the trailing component */ | |
1101 | pfn = makefile(fn); | |
e2758dc3 EA |
1102 | if (pfn == NULL) |
1103 | return (FALSE); | |
1104 | q = rindex(pfn, '/'); | |
1105 | if (q == NULL) | |
1106 | q = &pfn[-1]; | |
1107 | if (q[1] != 's' || q[2] != '.') | |
61886f2a | 1108 | { |
d266e8cb | 1109 | usrerr("bad file name \"%s\"", fn); |
9c3bf134 | 1110 | return (FALSE); |
61886f2a EA |
1111 | } |
1112 | ||
e1e64d36 | 1113 | /* turn "s." into "p." & try to open it */ |
61886f2a EA |
1114 | *++q = 'p'; |
1115 | ||
1116 | pfp = fopen(pfn, "r"); | |
1117 | if (pfp == NULL) | |
1118 | { | |
fdca7108 | 1119 | printf("%12s: not being edited\n", fn); |
9c3bf134 | 1120 | return (FALSE); |
61886f2a EA |
1121 | } |
1122 | ||
e1e64d36 | 1123 | /* create temp file for editing p-file */ |
61886f2a EA |
1124 | mktemp(tfn); |
1125 | tfp = fopen(tfn, "w"); | |
1126 | if (tfp == NULL) | |
1127 | { | |
d266e8cb | 1128 | usrerr("cannot create \"%s\"", tfn); |
61886f2a EA |
1129 | exit(EX_OSERR); |
1130 | } | |
1131 | ||
e1e64d36 | 1132 | /* figure out who I am */ |
6aac25be | 1133 | myname = username(); |
e1e64d36 EA |
1134 | |
1135 | /* | |
1136 | ** Copy p-file to temp file, doing deletions as needed. | |
1137 | */ | |
1138 | ||
c03d198b | 1139 | while ((pent = getpfent(pfp)) != NULL) |
61886f2a EA |
1140 | { |
1141 | if (strcmp(pent->p_user, myname) == 0) | |
1142 | { | |
1143 | /* a match */ | |
1144 | delete++; | |
1145 | } | |
1146 | else | |
1147 | { | |
e1e64d36 | 1148 | /* output it again */ |
daa96559 | 1149 | putpfent(pent, tfp); |
61886f2a EA |
1150 | others++; |
1151 | } | |
1152 | } | |
1153 | ||
299937a3 SL |
1154 | /* |
1155 | * Before changing anything, make sure we can remove | |
1156 | * the file in question (assuming it exists). | |
1157 | */ | |
1158 | if (delete) { | |
1159 | extern int errno; | |
1160 | ||
1161 | cp = tail(fn); | |
1162 | errno = 0; | |
1163 | if (access(cp, 0) < 0 && errno != ENOENT) | |
1164 | goto bad; | |
1165 | if (errno == 0) | |
1166 | /* | |
1167 | * This is wrong, but the rest of the program | |
1168 | * has built in assumptions about "." as well, | |
1169 | * so why make unedit a special case? | |
1170 | */ | |
1171 | if (access(".", 2) < 0) { | |
1172 | bad: | |
1173 | printf("%12s: can't remove\n", cp); | |
1174 | fclose(tfp); | |
1175 | fclose(pfp); | |
1176 | unlink(tfn); | |
1177 | return (FALSE); | |
1178 | } | |
1179 | } | |
61886f2a EA |
1180 | /* do final cleanup */ |
1181 | if (others) | |
1182 | { | |
e1e64d36 | 1183 | /* copy it back (perhaps it should be linked?) */ |
61886f2a EA |
1184 | if (freopen(tfn, "r", tfp) == NULL) |
1185 | { | |
d266e8cb | 1186 | syserr("cannot reopen \"%s\"", tfn); |
61886f2a EA |
1187 | exit(EX_OSERR); |
1188 | } | |
1189 | if (freopen(pfn, "w", pfp) == NULL) | |
1190 | { | |
d266e8cb | 1191 | usrerr("cannot create \"%s\"", pfn); |
9c3bf134 | 1192 | return (FALSE); |
61886f2a EA |
1193 | } |
1194 | while (fgets(buf, sizeof buf, tfp) != NULL) | |
1195 | fputs(buf, pfp); | |
1196 | } | |
1197 | else | |
1198 | { | |
e1e64d36 | 1199 | /* it's empty -- remove it */ |
61886f2a EA |
1200 | unlink(pfn); |
1201 | } | |
1202 | fclose(tfp); | |
1203 | fclose(pfp); | |
1204 | unlink(tfn); | |
1205 | ||
e1e64d36 | 1206 | /* actually remove the g-file */ |
61886f2a EA |
1207 | if (delete) |
1208 | { | |
299937a3 SL |
1209 | /* |
1210 | * Since we've checked above, we can | |
1211 | * use the return from unlink to | |
1212 | * determine if the file existed or not. | |
1213 | */ | |
1214 | if (unlink(cp) >= 0) | |
1215 | printf("%12s: removed\n", cp); | |
9c3bf134 | 1216 | return (TRUE); |
61886f2a EA |
1217 | } |
1218 | else | |
1219 | { | |
fdca7108 | 1220 | printf("%12s: not being edited by you\n", fn); |
9c3bf134 | 1221 | return (FALSE); |
61886f2a EA |
1222 | } |
1223 | } | |
2d351698 | 1224 | \f |
629c0863 EA |
1225 | /* |
1226 | ** DODIFF -- diff an s-file against a g-file | |
1227 | ** | |
1228 | ** Parameters: | |
1229 | ** getv -- argv for the 'get' command. | |
1230 | ** gfile -- name of the g-file to diff against. | |
1231 | ** | |
1232 | ** Returns: | |
1233 | ** Result of get. | |
1234 | ** | |
1235 | ** Side Effects: | |
1236 | ** none. | |
1237 | */ | |
1238 | ||
1239 | dodiff(getv, gfile) | |
1240 | char **getv; | |
1241 | char *gfile; | |
1242 | { | |
1243 | int pipev[2]; | |
1244 | int rval; | |
1245 | register int i; | |
1246 | register int pid; | |
1247 | auto int st; | |
1248 | extern int errno; | |
1249 | int (*osig)(); | |
8dace933 EA |
1250 | register char *p; |
1251 | register char **ap; | |
1252 | bool makescript = FALSE; | |
629c0863 | 1253 | |
8dace933 EA |
1254 | for (ap = getv; *ap != NULL; ap++) |
1255 | { | |
1256 | p = *ap; | |
1257 | if (p[0] == '-') | |
1258 | { | |
1259 | switch (p[1]) | |
1260 | { | |
1261 | case 'E': | |
1262 | p[1] = 'e'; | |
1263 | makescript = TRUE; | |
1264 | break; | |
1265 | } | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | if (makescript) | |
1270 | { | |
1271 | printf("sccs edit %s\n", gfile); | |
1272 | printf("ed - %s << 'xxEOFxx'\n", gfile); | |
1273 | } | |
1274 | else | |
1275 | printf("\n------- %s -------\n", gfile); | |
73b61bcf | 1276 | fflush(stdout); |
d597ad9e | 1277 | |
e1e64d36 | 1278 | /* create context for diff to run in */ |
629c0863 EA |
1279 | if (pipe(pipev) < 0) |
1280 | { | |
1281 | syserr("dodiff: pipe failed"); | |
1282 | exit(EX_OSERR); | |
1283 | } | |
1284 | if ((pid = fork()) < 0) | |
1285 | { | |
1286 | syserr("dodiff: fork failed"); | |
1287 | exit(EX_OSERR); | |
1288 | } | |
1289 | else if (pid > 0) | |
1290 | { | |
1291 | /* in parent; run get */ | |
1292 | OutFile = pipev[1]; | |
1293 | close(pipev[0]); | |
73b61bcf | 1294 | rval = command(&getv[1], TRUE, "get:rcixt -s -k -p"); |
629c0863 EA |
1295 | osig = signal(SIGINT, SIG_IGN); |
1296 | while (((i = wait(&st)) >= 0 && i != pid) || errno == EINTR) | |
1297 | errno = 0; | |
1298 | signal(SIGINT, osig); | |
1299 | /* ignore result of diff */ | |
1300 | } | |
1301 | else | |
1302 | { | |
1303 | /* in child, run diff */ | |
1304 | if (close(pipev[1]) < 0 || close(0) < 0 || | |
1305 | dup(pipev[0]) != 0 || close(pipev[0]) < 0) | |
1306 | { | |
1307 | syserr("dodiff: magic failed"); | |
1308 | exit(EX_OSERR); | |
1309 | } | |
73b61bcf | 1310 | command(&getv[1], FALSE, "-diff:elsfhbC"); |
629c0863 | 1311 | } |
8dace933 EA |
1312 | |
1313 | if (makescript) | |
1314 | { | |
1315 | printf("w\n"); | |
1316 | printf("q\n"); | |
1317 | printf("'xxEOFxx'\n"); | |
1318 | printf("sccs delta %s\n", gfile); | |
1319 | } | |
1320 | ||
629c0863 EA |
1321 | return (rval); |
1322 | } | |
1323 | \f | |
4cd62a3c EA |
1324 | /* |
1325 | ** TAIL -- return tail of filename. | |
1326 | ** | |
1327 | ** Parameters: | |
1328 | ** fn -- the filename. | |
1329 | ** | |
1330 | ** Returns: | |
1331 | ** a pointer to the tail of the filename; e.g., given | |
1332 | ** "cmd/ls.c", "ls.c" is returned. | |
1333 | ** | |
1334 | ** Side Effects: | |
1335 | ** none. | |
1336 | */ | |
1337 | ||
1338 | char * | |
1339 | tail(fn) | |
1340 | register char *fn; | |
1341 | { | |
1342 | register char *p; | |
1343 | ||
1344 | for (p = fn; *p != 0; p++) | |
1345 | if (*p == '/' && p[1] != '\0' && p[1] != '/') | |
1346 | fn = &p[1]; | |
1347 | return (fn); | |
1348 | } | |
1349 | \f | |
2d351698 | 1350 | /* |
c03d198b | 1351 | ** GETPFENT -- get an entry from the p-file |
61886f2a EA |
1352 | ** |
1353 | ** Parameters: | |
1354 | ** pfp -- p-file file pointer | |
1355 | ** | |
1356 | ** Returns: | |
1357 | ** pointer to p-file struct for next entry | |
1358 | ** NULL on EOF or error | |
1359 | ** | |
1360 | ** Side Effects: | |
1361 | ** Each call wipes out results of previous call. | |
1362 | */ | |
1363 | ||
1364 | struct pfile * | |
c03d198b | 1365 | getpfent(pfp) |
61886f2a EA |
1366 | FILE *pfp; |
1367 | { | |
1368 | static struct pfile ent; | |
017698aa | 1369 | static char buf[PFILELG]; |
61886f2a EA |
1370 | register char *p; |
1371 | extern char *nextfield(); | |
1372 | ||
1373 | if (fgets(buf, sizeof buf, pfp) == NULL) | |
1374 | return (NULL); | |
1375 | ||
1376 | ent.p_osid = p = buf; | |
1377 | ent.p_nsid = p = nextfield(p); | |
1378 | ent.p_user = p = nextfield(p); | |
1379 | ent.p_date = p = nextfield(p); | |
1380 | ent.p_time = p = nextfield(p); | |
daa96559 | 1381 | ent.p_aux = p = nextfield(p); |
61886f2a EA |
1382 | |
1383 | return (&ent); | |
1384 | } | |
1385 | ||
1386 | ||
1387 | char * | |
1388 | nextfield(p) | |
1389 | register char *p; | |
1390 | { | |
1391 | if (p == NULL || *p == '\0') | |
1392 | return (NULL); | |
1393 | while (*p != ' ' && *p != '\n' && *p != '\0') | |
1394 | p++; | |
1395 | if (*p == '\n' || *p == '\0') | |
1396 | { | |
1397 | *p = '\0'; | |
1398 | return (NULL); | |
1399 | } | |
1400 | *p++ = '\0'; | |
1401 | return (p); | |
1402 | } | |
daa96559 EA |
1403 | \f/* |
1404 | ** PUTPFENT -- output a p-file entry to a file | |
1405 | ** | |
1406 | ** Parameters: | |
1407 | ** pf -- the p-file entry | |
1408 | ** f -- the file to put it on. | |
1409 | ** | |
1410 | ** Returns: | |
1411 | ** none. | |
1412 | ** | |
1413 | ** Side Effects: | |
1414 | ** pf is written onto file f. | |
1415 | */ | |
1416 | ||
1417 | putpfent(pf, f) | |
1418 | register struct pfile *pf; | |
1419 | register FILE *f; | |
1420 | { | |
1421 | fprintf(f, "%s %s %s %s %s", pf->p_osid, pf->p_nsid, | |
1422 | pf->p_user, pf->p_date, pf->p_time); | |
1423 | if (pf->p_aux != NULL) | |
1424 | fprintf(f, " %s", pf->p_aux); | |
1425 | else | |
1426 | fprintf(f, "\n"); | |
1427 | } | |
2d351698 EA |
1428 | \f |
1429 | /* | |
d266e8cb EA |
1430 | ** USRERR -- issue user-level error |
1431 | ** | |
1432 | ** Parameters: | |
1433 | ** f -- format string. | |
1434 | ** p1-p3 -- parameters to a printf. | |
1435 | ** | |
1436 | ** Returns: | |
1437 | ** -1 | |
1438 | ** | |
1439 | ** Side Effects: | |
1440 | ** none. | |
1441 | */ | |
1442 | ||
64dc8483 | 1443 | /*VARARGS1*/ |
d266e8cb EA |
1444 | usrerr(f, p1, p2, p3) |
1445 | char *f; | |
1446 | { | |
1447 | fprintf(stderr, "\n%s: ", MyName); | |
1448 | fprintf(stderr, f, p1, p2, p3); | |
1449 | fprintf(stderr, "\n"); | |
1450 | ||
1451 | return (-1); | |
1452 | } | |
2d351698 EA |
1453 | \f |
1454 | /* | |
d266e8cb EA |
1455 | ** SYSERR -- print system-generated error. |
1456 | ** | |
1457 | ** Parameters: | |
1458 | ** f -- format string to a printf. | |
1459 | ** p1, p2, p3 -- parameters to f. | |
1460 | ** | |
1461 | ** Returns: | |
1462 | ** never. | |
1463 | ** | |
1464 | ** Side Effects: | |
1465 | ** none. | |
1466 | */ | |
1467 | ||
64dc8483 | 1468 | /*VARARGS1*/ |
d266e8cb EA |
1469 | syserr(f, p1, p2, p3) |
1470 | char *f; | |
1471 | { | |
1472 | extern int errno; | |
1473 | ||
1474 | fprintf(stderr, "\n%s SYSERR: ", MyName); | |
1475 | fprintf(stderr, f, p1, p2, p3); | |
1476 | fprintf(stderr, "\n"); | |
1477 | if (errno == 0) | |
1478 | exit(EX_SOFTWARE); | |
1479 | else | |
1480 | { | |
64dc8483 | 1481 | perror(NULL); |
d266e8cb EA |
1482 | exit(EX_OSERR); |
1483 | } | |
1484 | } | |
6aac25be EA |
1485 | \f/* |
1486 | ** USERNAME -- return name of the current user | |
1487 | ** | |
1488 | ** Parameters: | |
1489 | ** none | |
1490 | ** | |
1491 | ** Returns: | |
1492 | ** name of current user | |
1493 | ** | |
1494 | ** Side Effects: | |
1495 | ** none | |
1496 | */ | |
1497 | ||
1498 | char * | |
1499 | username() | |
1500 | { | |
1501 | # ifdef UIDUSER | |
1502 | extern struct passwd *getpwuid(); | |
1503 | register struct passwd *pw; | |
1504 | ||
1505 | pw = getpwuid(getuid()); | |
1506 | if (pw == NULL) | |
1507 | { | |
1508 | syserr("who are you? (uid=%d)", getuid()); | |
1509 | exit(EX_OSERR); | |
1510 | } | |
1511 | return (pw->pw_name); | |
1512 | # else | |
86b78a2b | 1513 | extern char *getlogin(); |
d8a47f3b EA |
1514 | extern char *getenv(); |
1515 | register char *p; | |
86b78a2b | 1516 | |
d8a47f3b EA |
1517 | p = getenv("USER"); |
1518 | if (p == NULL || p[0] == '\0') | |
1519 | p = getlogin(); | |
1520 | return (p); | |
6aac25be EA |
1521 | # endif UIDUSER |
1522 | } | |
017698aa RH |
1523 | \f |
1524 | /* | |
1525 | ** Guarded string manipulation routines; the last argument | |
1526 | ** is the length of the buffer into which the strcpy or strcat | |
1527 | ** is to be done. | |
1528 | */ | |
1529 | char *gstrcat(to, from, length) | |
1530 | char *to, *from; | |
1531 | int length; | |
1532 | { | |
1533 | if (strlen(from) + strlen(to) >= length) { | |
1534 | gstrbotch(to, from); | |
1535 | } | |
1536 | return(strcat(to, from)); | |
1537 | } | |
1538 | ||
1539 | char *gstrncat(to, from, n, length) | |
1540 | char *to, *from; | |
1541 | int n; | |
1542 | int length; | |
1543 | { | |
1544 | if (n + strlen(to) >= length) { | |
1545 | gstrbotch(to, from); | |
1546 | } | |
1547 | return(strncat(to, from, n)); | |
1548 | } | |
1549 | ||
1550 | char *gstrcpy(to, from, length) | |
1551 | char *to, *from; | |
1552 | int length; | |
1553 | { | |
1554 | if (strlen(from) >= length) { | |
1555 | gstrbotch(from, (char *)0); | |
1556 | } | |
1557 | return(strcpy(to, from)); | |
1558 | } | |
1559 | gstrbotch(str1, str2) | |
1560 | char *str1, *str2; | |
1561 | { | |
1562 | usrerr("Filename(s) too long: %s %s", str1, str2); | |
1563 | } |