Commit | Line | Data |
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1cc2dcec EA |
1 | # include <stdio.h> |
2 | # include <sys/types.h> | |
3 | # include <sys/stat.h> | |
399058e3 | 4 | # include <sys/dir.h> |
629c0863 EA |
5 | # include <errno.h> |
6 | # include <signal.h> | |
1cc2dcec | 7 | # include <sysexits.h> |
7a8ba074 | 8 | # include <whoami.h> |
705c2473 | 9 | # include <pwd.h> |
1cc2dcec | 10 | |
27e713f7 EA |
11 | /* |
12 | ** SCCS.C -- human-oriented front end to the SCCS system. | |
13 | ** | |
14 | ** Without trying to add any functionality to speak of, this | |
15 | ** program tries to make SCCS a little more accessible to human | |
16 | ** types. The main thing it does is automatically put the | |
17 | ** string "SCCS/s." on the front of names. Also, it has a | |
18 | ** couple of things that are designed to shorten frequent | |
19 | ** combinations, e.g., "delget" which expands to a "delta" | |
20 | ** and a "get". | |
21 | ** | |
22 | ** This program can also function as a setuid front end. | |
23 | ** To do this, you should copy the source, renaming it to | |
24 | ** whatever you want, e.g., "syssccs". Change any defaults | |
25 | ** in the program (e.g., syssccs might default -d to | |
26 | ** "/usr/src/sys"). Then recompile and put the result | |
27 | ** as setuid to whomever you want. In this mode, sccs | |
28 | ** knows to not run setuid for certain programs in order | |
29 | ** to preserve security, and so forth. | |
30 | ** | |
31 | ** Usage: | |
32 | ** sccs [flags] command [args] | |
33 | ** | |
34 | ** Flags: | |
35 | ** -d<dir> <dir> represents a directory to search | |
36 | ** out of. It should be a full pathname | |
37 | ** for general usage. E.g., if <dir> is | |
38 | ** "/usr/src/sys", then a reference to the | |
39 | ** file "dev/bio.c" becomes a reference to | |
40 | ** "/usr/src/sys/dev/bio.c". | |
41 | ** -p<path> prepends <path> to the final component | |
42 | ** of the pathname. By default, this is | |
43 | ** "SCCS". For example, in the -d example | |
44 | ** above, the path then gets modified to | |
45 | ** "/usr/src/sys/dev/SCCS/s.bio.c". In | |
46 | ** more common usage (without the -d flag), | |
47 | ** "prog.c" would get modified to | |
48 | ** "SCCS/s.prog.c". In both cases, the | |
49 | ** "s." gets automatically prepended. | |
50 | ** -r run as the real user. | |
51 | ** | |
52 | ** Commands: | |
53 | ** admin, | |
54 | ** get, | |
55 | ** delta, | |
56 | ** rmdel, | |
57 | ** chghist, | |
58 | ** etc. Straight out of SCCS; only difference | |
59 | ** is that pathnames get modified as | |
60 | ** described above. | |
61 | ** edit Macro for "get -e". | |
62 | ** unedit Removes a file being edited, knowing | |
63 | ** about p-files, etc. | |
64 | ** delget Macro for "delta" followed by "get". | |
65 | ** deledit Macro for "delta" followed by "get -e". | |
66 | ** info Tell what files being edited. | |
67 | ** clean Remove all files that can be | |
68 | ** regenerated from SCCS files. | |
d266e8cb | 69 | ** check Like info, but return exit status, for |
27e713f7 EA |
70 | ** use in makefiles. |
71 | ** fix Remove a top delta & reedit, but save | |
72 | ** the previous changes in that delta. | |
73 | ** | |
74 | ** Compilation Flags: | |
75 | ** UIDUSER -- determine who the user is by looking at the | |
76 | ** uid rather than the login name -- for machines | |
77 | ** where SCCS gets the user in this way. | |
56151b9e | 78 | ** SCCSDIR -- if defined, forces the -d flag to take on |
d266e8cb EA |
79 | ** this value. This is so that the setuid |
80 | ** aspects of this program cannot be abused. | |
56151b9e EA |
81 | ** This flag also disables the -p flag. |
82 | ** SCCSPATH -- the default for the -p flag. | |
27082f2b EA |
83 | ** MYNAME -- the title this program should print when it |
84 | ** gives error messages. | |
27e713f7 EA |
85 | ** |
86 | ** Compilation Instructions: | |
87 | ** cc -O -n -s sccs.c | |
27082f2b EA |
88 | ** The flags listed above can be -D defined to simplify |
89 | ** recompilation for variant versions. | |
27e713f7 EA |
90 | ** |
91 | ** Author: | |
92 | ** Eric Allman, UCB/INGRES | |
56151b9e | 93 | ** Copyright 1980 Regents of the University of California |
27e713f7 EA |
94 | */ |
95 | ||
daa96559 | 96 | static char SccsId[] = "@(#)sccs.c 1.59 %G%"; |
2d351698 | 97 | \f |
56151b9e EA |
98 | /******************* Configuration Information ********************/ |
99 | ||
27082f2b EA |
100 | /* special defines for local berkeley systems */ |
101 | # include <whoami.h> | |
102 | ||
27e713f7 EA |
103 | # ifdef CSVAX |
104 | # define UIDUSER | |
56151b9e EA |
105 | # define PROGPATH(name) "/usr/local/name" |
106 | # endif CSVAX | |
107 | ||
f0b9a52d EA |
108 | # ifdef INGVAX |
109 | # define PROGPATH(name) "/usr/local/name" | |
110 | # endif INGVAX | |
111 | ||
0bc81196 EA |
112 | # ifdef CORY |
113 | # define PROGPATH(name) "/usr/eecs/bin/name" | |
114 | # endif CORY | |
115 | ||
27082f2b EA |
116 | /* end of berkeley systems defines */ |
117 | ||
118 | # ifndef SCCSPATH | |
2d351698 | 119 | # define SCCSPATH "SCCS" /* pathname in which to find s-files */ |
27082f2b | 120 | # endif NOT SCCSPATH |
56151b9e | 121 | |
27082f2b EA |
122 | # ifndef MYNAME |
123 | # define MYNAME "sccs" /* name used for printing errors */ | |
124 | # endif NOT MYNAME | |
27e713f7 | 125 | |
2d351698 EA |
126 | # ifndef PROGPATH |
127 | # define PROGPATH(name) "/usr/sccs/name" /* place to find binaries */ | |
128 | # endif PROGPATH | |
2a0234bf | 129 | |
2d351698 EA |
130 | /**************** End of Configuration Information ****************/ |
131 | \f | |
2a0234bf | 132 | typedef char bool; |
a97ecd0d EA |
133 | # define TRUE 1 |
134 | # define FALSE 0 | |
81dc6403 | 135 | |
e1e64d36 EA |
136 | # define bitset(bit, word) ((bool) ((bit) & (word))) |
137 | ||
1cc2dcec EA |
138 | struct sccsprog |
139 | { | |
140 | char *sccsname; /* name of SCCS routine */ | |
a97ecd0d EA |
141 | short sccsoper; /* opcode, see below */ |
142 | short sccsflags; /* flags, see below */ | |
1cc2dcec EA |
143 | char *sccspath; /* pathname of binary implementing */ |
144 | }; | |
145 | ||
a97ecd0d EA |
146 | /* values for sccsoper */ |
147 | # define PROG 0 /* call a program */ | |
e672376b | 148 | # define CMACRO 1 /* command substitution macro */ |
4535945e | 149 | # define FIX 2 /* fix a delta */ |
399058e3 | 150 | # define CLEAN 3 /* clean out recreatable files */ |
61886f2a | 151 | # define UNEDIT 4 /* unedit a file */ |
c9ac6819 | 152 | # define SHELL 5 /* call a shell file (like PROG) */ |
629c0863 | 153 | # define DIFFS 6 /* diff between sccs & file out */ |
73b61bcf | 154 | # define DODIFF 7 /* internal call to diff program */ |
a97ecd0d | 155 | |
2a0234bf | 156 | /* bits for sccsflags */ |
a97ecd0d EA |
157 | # define NO_SDOT 0001 /* no s. on front of args */ |
158 | # define REALUSER 0002 /* protected (e.g., admin) */ | |
1cc2dcec | 159 | |
89819fbe EA |
160 | /* modes for the "clean", "info", "check" ops */ |
161 | # define CLEANC 0 /* clean command */ | |
162 | # define INFOC 1 /* info command */ | |
163 | # define CHECKC 2 /* check command */ | |
bdd50a56 | 164 | # define TELLC 3 /* give list of files being edited */ |
89819fbe | 165 | |
2d351698 EA |
166 | /* |
167 | ** Description of commands known to this program. | |
168 | ** First argument puts the command into a class. Second arg is | |
169 | ** info regarding treatment of this command. Third arg is a | |
170 | ** list of flags this command accepts from macros, etc. Fourth | |
171 | ** arg is the pathname of the implementing program, or the | |
172 | ** macro definition, or the arg to a sub-algorithm. | |
173 | */ | |
7a8ba074 | 174 | |
1cc2dcec EA |
175 | struct sccsprog SccsProg[] = |
176 | { | |
6aac25be EA |
177 | "admin", PROG, REALUSER, PROGPATH(admin), |
178 | "chghist", PROG, 0, PROGPATH(rmdel), | |
179 | "comb", PROG, 0, PROGPATH(comb), | |
180 | "delta", PROG, 0, PROGPATH(delta), | |
181 | "get", PROG, 0, PROGPATH(get), | |
182 | "help", PROG, NO_SDOT, PROGPATH(help), | |
56b5d646 | 183 | "prs", PROG, 0, PROGPATH(prs), |
6aac25be EA |
184 | "prt", PROG, 0, PROGPATH(prt), |
185 | "rmdel", PROG, REALUSER, PROGPATH(rmdel), | |
56b5d646 | 186 | "val", PROG, 0, PROGPATH(val), |
6aac25be EA |
187 | "what", PROG, NO_SDOT, PROGPATH(what), |
188 | "sccsdiff", SHELL, REALUSER, PROGPATH(sccsdiff), | |
189 | "edit", CMACRO, NO_SDOT, "get -e", | |
190 | "delget", CMACRO, NO_SDOT, "delta:mysrp/get:ixbeskcl -t", | |
a479627e | 191 | "deledit", CMACRO, NO_SDOT, "delta:mysrp -n/get:ixbskcl -e -t -g", |
6aac25be EA |
192 | "fix", FIX, NO_SDOT, NULL, |
193 | "clean", CLEAN, REALUSER|NO_SDOT, (char *) CLEANC, | |
194 | "info", CLEAN, REALUSER|NO_SDOT, (char *) INFOC, | |
195 | "check", CLEAN, REALUSER|NO_SDOT, (char *) CHECKC, | |
196 | "tell", CLEAN, REALUSER|NO_SDOT, (char *) TELLC, | |
197 | "unedit", UNEDIT, NO_SDOT, NULL, | |
198 | "diffs", DIFFS, NO_SDOT|REALUSER, NULL, | |
73b61bcf | 199 | "-diff", DODIFF, NO_SDOT|REALUSER, PROGPATH(bdiff), |
5c7d3059 | 200 | "print", CMACRO, 0, "prt -e/get -p -m -s", |
6aac25be | 201 | NULL, -1, 0, NULL |
1cc2dcec EA |
202 | }; |
203 | ||
2d351698 | 204 | /* one line from a p-file */ |
61886f2a EA |
205 | struct pfile |
206 | { | |
207 | char *p_osid; /* old SID */ | |
208 | char *p_nsid; /* new SID */ | |
209 | char *p_user; /* user who did edit */ | |
210 | char *p_date; /* date of get */ | |
211 | char *p_time; /* time of get */ | |
daa96559 | 212 | char *p_aux; /* extra info at end */ |
61886f2a EA |
213 | }; |
214 | ||
56151b9e EA |
215 | char *SccsPath = SCCSPATH; /* pathname of SCCS files */ |
216 | # ifdef SCCSDIR | |
217 | char *SccsDir = SCCSDIR; /* directory to begin search from */ | |
d266e8cb | 218 | # else |
56151b9e | 219 | char *SccsDir = ""; |
d266e8cb | 220 | # endif |
27082f2b | 221 | char MyName[] = MYNAME; /* name used in messages */ |
629c0863 | 222 | int OutFile = -1; /* override output file for commands */ |
2a0234bf | 223 | bool RealUser; /* if set, running as real user */ |
27e36d02 EA |
224 | # ifdef DEBUG |
225 | bool Debug; /* turn on tracing */ | |
226 | # endif | |
41b548c8 EA |
227 | # ifndef V6 |
228 | extern char *getenv(); | |
229 | # endif V6 | |
2d351698 | 230 | \f |
1cc2dcec EA |
231 | main(argc, argv) |
232 | int argc; | |
233 | char **argv; | |
234 | { | |
235 | register char *p; | |
1045e3ba | 236 | extern struct sccsprog *lookup(); |
e8a6a730 | 237 | register int i; |
41b548c8 EA |
238 | # ifndef V6 |
239 | # ifndef SCCSDIR | |
705c2473 EA |
240 | register struct passwd *pw; |
241 | extern struct passwd *getpwnam(); | |
242 | char buf[100]; | |
243 | ||
41b548c8 EA |
244 | /* pull "SccsDir" out of the environment (possibly) */ |
245 | p = getenv("PROJECT"); | |
705c2473 EA |
246 | if (p != NULL && p[0] != '\0') |
247 | { | |
248 | if (p[0] == '/') | |
249 | SccsDir = p; | |
250 | else | |
251 | { | |
252 | pw = getpwnam(p); | |
253 | if (pw == NULL) | |
254 | { | |
255 | usrerr("user %s does not exist", p); | |
256 | exit(EX_USAGE); | |
257 | } | |
258 | strcpy(buf, pw->pw_dir); | |
259 | strcat(buf, "/src"); | |
260 | if (access(buf, 0) < 0) | |
261 | { | |
262 | strcpy(buf, pw->pw_dir); | |
263 | strcat(buf, "/source"); | |
264 | if (access(buf, 0) < 0) | |
265 | { | |
266 | usrerr("project %s has no source!", p); | |
267 | exit(EX_USAGE); | |
268 | } | |
269 | } | |
270 | SccsDir = buf; | |
271 | } | |
272 | } | |
41b548c8 EA |
273 | # endif SCCSDIR |
274 | # endif V6 | |
275 | ||
1cc2dcec EA |
276 | /* |
277 | ** Detect and decode flags intended for this program. | |
278 | */ | |
279 | ||
a97ecd0d EA |
280 | if (argc < 2) |
281 | { | |
d266e8cb | 282 | fprintf(stderr, "Usage: %s [flags] command [flags]\n", MyName); |
a97ecd0d EA |
283 | exit(EX_USAGE); |
284 | } | |
285 | argv[argc] = NULL; | |
286 | ||
1045e3ba | 287 | if (lookup(argv[0]) == NULL) |
1cc2dcec | 288 | { |
1045e3ba | 289 | while ((p = *++argv) != NULL) |
1cc2dcec | 290 | { |
1045e3ba EA |
291 | if (*p != '-') |
292 | break; | |
293 | switch (*++p) | |
294 | { | |
295 | case 'r': /* run as real user */ | |
296 | setuid(getuid()); | |
297 | RealUser++; | |
298 | break; | |
299 | ||
56151b9e | 300 | # ifndef SCCSDIR |
1045e3ba EA |
301 | case 'p': /* path of sccs files */ |
302 | SccsPath = ++p; | |
303 | break; | |
304 | ||
02ec3e87 EA |
305 | case 'd': /* directory to search from */ |
306 | SccsDir = ++p; | |
307 | break; | |
d266e8cb | 308 | # endif |
02ec3e87 | 309 | |
27e36d02 EA |
310 | # ifdef DEBUG |
311 | case 'T': /* trace */ | |
312 | Debug++; | |
313 | break; | |
314 | # endif | |
315 | ||
1045e3ba | 316 | default: |
d266e8cb | 317 | usrerr("unknown option -%s", p); |
1045e3ba EA |
318 | break; |
319 | } | |
1cc2dcec | 320 | } |
1045e3ba EA |
321 | if (SccsPath[0] == '\0') |
322 | SccsPath = "."; | |
1cc2dcec EA |
323 | } |
324 | ||
5e6a7fa9 | 325 | i = command(argv, FALSE, ""); |
e8a6a730 | 326 | exit(i); |
a97ecd0d | 327 | } |
2d351698 EA |
328 | \f |
329 | /* | |
e8a6a730 EA |
330 | ** COMMAND -- look up and perform a command |
331 | ** | |
332 | ** This routine is the guts of this program. Given an | |
333 | ** argument vector, it looks up the "command" (argv[0]) | |
334 | ** in the configuration table and does the necessary stuff. | |
335 | ** | |
336 | ** Parameters: | |
337 | ** argv -- an argument vector to process. | |
338 | ** forkflag -- if set, fork before executing the command. | |
1dbb3fe7 EA |
339 | ** editflag -- if set, only include flags listed in the |
340 | ** sccsklets field of the command descriptor. | |
341 | ** arg0 -- a space-seperated list of arguments to insert | |
342 | ** before argv. | |
e8a6a730 EA |
343 | ** |
344 | ** Returns: | |
345 | ** zero -- command executed ok. | |
346 | ** else -- error status. | |
347 | ** | |
348 | ** Side Effects: | |
349 | ** none. | |
350 | */ | |
a97ecd0d | 351 | |
5e6a7fa9 | 352 | command(argv, forkflag, arg0) |
a97ecd0d | 353 | char **argv; |
e672376b | 354 | bool forkflag; |
1dbb3fe7 | 355 | char *arg0; |
a97ecd0d EA |
356 | { |
357 | register struct sccsprog *cmd; | |
358 | register char *p; | |
e672376b | 359 | char buf[40]; |
1045e3ba | 360 | extern struct sccsprog *lookup(); |
1dbb3fe7 EA |
361 | char *nav[1000]; |
362 | char **np; | |
c9ac6819 | 363 | register char **ap; |
9c3bf134 | 364 | register int i; |
c9ac6819 | 365 | register char *q; |
9c3bf134 | 366 | extern bool unedit(); |
e8a6a730 | 367 | int rval = 0; |
1dbb3fe7 EA |
368 | extern char *index(); |
369 | extern char *makefile(); | |
5e6a7fa9 | 370 | char *editchs; |
4cd62a3c | 371 | extern char *tail(); |
27e36d02 EA |
372 | |
373 | # ifdef DEBUG | |
374 | if (Debug) | |
375 | { | |
1dbb3fe7 EA |
376 | printf("command:\n\t\"%s\"\n", arg0); |
377 | for (np = argv; *np != NULL; np++) | |
378 | printf("\t\"%s\"\n", *np); | |
27e36d02 EA |
379 | } |
380 | # endif | |
2a0234bf | 381 | |
1dbb3fe7 EA |
382 | /* |
383 | ** Copy arguments. | |
e1e64d36 EA |
384 | ** Copy from arg0 & if necessary at most one arg |
385 | ** from argv[0]. | |
1dbb3fe7 EA |
386 | */ |
387 | ||
c9ac6819 | 388 | np = ap = &nav[1]; |
5e6a7fa9 | 389 | editchs = NULL; |
ccd9c6ea | 390 | for (p = arg0, q = buf; *p != '\0' && *p != '/'; ) |
1dbb3fe7 EA |
391 | { |
392 | *np++ = q; | |
393 | while (*p == ' ') | |
394 | p++; | |
5e6a7fa9 | 395 | while (*p != ' ' && *p != '\0' && *p != '/' && *p != ':') |
1dbb3fe7 EA |
396 | *q++ = *p++; |
397 | *q++ = '\0'; | |
5e6a7fa9 EA |
398 | if (*p == ':') |
399 | { | |
400 | editchs = q; | |
ccd9c6ea | 401 | while (*++p != '\0' && *p != '/' && *p != ' ') |
5e6a7fa9 EA |
402 | *q++ = *p; |
403 | *q++ = '\0'; | |
404 | } | |
1dbb3fe7 EA |
405 | } |
406 | *np = NULL; | |
c9ac6819 | 407 | if (*ap == NULL) |
1dbb3fe7 EA |
408 | *np++ = *argv++; |
409 | ||
1cc2dcec EA |
410 | /* |
411 | ** Look up command. | |
c9ac6819 | 412 | ** At this point, *ap is the command name. |
1cc2dcec EA |
413 | */ |
414 | ||
c9ac6819 | 415 | cmd = lookup(*ap); |
1045e3ba | 416 | if (cmd == NULL) |
1cc2dcec | 417 | { |
c9ac6819 | 418 | usrerr("Unknown command \"%s\"", *ap); |
e8a6a730 | 419 | return (EX_USAGE); |
1cc2dcec EA |
420 | } |
421 | ||
1dbb3fe7 EA |
422 | /* |
423 | ** Copy remaining arguments doing editing as appropriate. | |
424 | */ | |
425 | ||
426 | for (; *argv != NULL; argv++) | |
427 | { | |
428 | p = *argv; | |
429 | if (*p == '-') | |
430 | { | |
5e6a7fa9 | 431 | if (p[1] == '\0' || editchs == NULL || index(editchs, p[1]) != NULL) |
1dbb3fe7 EA |
432 | *np++ = p; |
433 | } | |
434 | else | |
435 | { | |
436 | if (!bitset(NO_SDOT, cmd->sccsflags)) | |
437 | p = makefile(p); | |
438 | if (p != NULL) | |
439 | *np++ = p; | |
440 | } | |
441 | } | |
442 | *np = NULL; | |
443 | ||
2a0234bf | 444 | /* |
a97ecd0d | 445 | ** Interpret operation associated with this command. |
2a0234bf EA |
446 | */ |
447 | ||
a97ecd0d EA |
448 | switch (cmd->sccsoper) |
449 | { | |
c9ac6819 EA |
450 | case SHELL: /* call a shell file */ |
451 | *ap = cmd->sccspath; | |
452 | *--ap = "sh"; | |
453 | rval = callprog("/bin/sh", cmd->sccsflags, ap, forkflag); | |
454 | break; | |
455 | ||
a97ecd0d | 456 | case PROG: /* call an sccs prog */ |
c9ac6819 | 457 | rval = callprog(cmd->sccspath, cmd->sccsflags, ap, forkflag); |
e672376b EA |
458 | break; |
459 | ||
460 | case CMACRO: /* command macro */ | |
e1e64d36 | 461 | /* step through & execute each part of the macro */ |
e672376b EA |
462 | for (p = cmd->sccspath; *p != '\0'; p++) |
463 | { | |
1dbb3fe7 EA |
464 | q = p; |
465 | while (*p != '\0' && *p != '/') | |
466 | p++; | |
5e6a7fa9 | 467 | rval = command(&ap[1], *p != '\0', q); |
e8a6a730 EA |
468 | if (rval != 0) |
469 | break; | |
e672376b | 470 | } |
e8a6a730 | 471 | break; |
a97ecd0d | 472 | |
4535945e | 473 | case FIX: /* fix a delta */ |
c9ac6819 | 474 | if (strncmp(ap[1], "-r", 2) != 0) |
4535945e | 475 | { |
d266e8cb | 476 | usrerr("-r flag needed for fix command"); |
e8a6a730 | 477 | rval = EX_USAGE; |
4535945e EA |
478 | break; |
479 | } | |
e1e64d36 EA |
480 | |
481 | /* get the version with all changes */ | |
5e6a7fa9 | 482 | rval = command(&ap[1], TRUE, "get -k"); |
e1e64d36 EA |
483 | |
484 | /* now remove that version from the s-file */ | |
e8a6a730 | 485 | if (rval == 0) |
5e6a7fa9 | 486 | rval = command(&ap[1], TRUE, "rmdel:r"); |
e1e64d36 EA |
487 | |
488 | /* and edit the old version (but don't clobber new vers) */ | |
e8a6a730 | 489 | if (rval == 0) |
5e6a7fa9 | 490 | rval = command(&ap[2], FALSE, "get -e -g"); |
e8a6a730 | 491 | break; |
4535945e | 492 | |
399058e3 | 493 | case CLEAN: |
c03d198b | 494 | rval = clean((int) cmd->sccspath, ap); |
399058e3 EA |
495 | break; |
496 | ||
61886f2a | 497 | case UNEDIT: |
c9ac6819 | 498 | for (argv = np = &ap[1]; *argv != NULL; argv++) |
9c3bf134 | 499 | { |
1dbb3fe7 EA |
500 | if (unedit(*argv)) |
501 | *np++ = *argv; | |
9c3bf134 | 502 | } |
1dbb3fe7 | 503 | *np = NULL; |
e1e64d36 EA |
504 | |
505 | /* get all the files that we unedited successfully */ | |
64dc8483 | 506 | if (np > &ap[1]) |
5e6a7fa9 | 507 | rval = command(&ap[1], FALSE, "get"); |
61886f2a EA |
508 | break; |
509 | ||
629c0863 EA |
510 | case DIFFS: /* diff between s-file & edit file */ |
511 | /* find the end of the flag arguments */ | |
512 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
513 | continue; | |
514 | argv = np; | |
515 | ||
516 | /* for each file, do the diff */ | |
98501620 | 517 | p = argv[1]; |
629c0863 EA |
518 | while (*np != NULL) |
519 | { | |
e1e64d36 | 520 | /* messy, but we need a null terminated argv */ |
629c0863 | 521 | *argv = *np++; |
98501620 | 522 | argv[1] = NULL; |
4cd62a3c | 523 | i = dodiff(ap, tail(*argv)); |
629c0863 EA |
524 | if (rval == 0) |
525 | rval = i; | |
98501620 | 526 | argv[1] = p; |
629c0863 EA |
527 | } |
528 | break; | |
529 | ||
73b61bcf EA |
530 | case DODIFF: /* internal diff call */ |
531 | setuid(getuid()); | |
532 | for (np = ap; *np != NULL; np++) | |
533 | { | |
534 | if ((*np)[0] == '-' && (*np)[1] == 'C') | |
535 | (*np)[1] = 'c'; | |
536 | } | |
537 | ||
538 | /* insert "-" argument */ | |
539 | np[1] = NULL; | |
540 | np[0] = np[-1]; | |
541 | np[-1] = "-"; | |
542 | ||
543 | /* execute the diff program of choice */ | |
544 | # ifndef V6 | |
545 | execvp("diff", ap); | |
546 | # endif | |
547 | execv(cmd->sccspath, argv); | |
548 | syserr("cannot exec %s", cmd->sccspath); | |
549 | exit(EX_OSERR); | |
550 | ||
a97ecd0d | 551 | default: |
d266e8cb | 552 | syserr("oper %d", cmd->sccsoper); |
a97ecd0d EA |
553 | exit(EX_SOFTWARE); |
554 | } | |
e8a6a730 EA |
555 | # ifdef DEBUG |
556 | if (Debug) | |
557 | printf("command: rval=%d\n", rval); | |
558 | # endif | |
559 | return (rval); | |
a97ecd0d | 560 | } |
2d351698 EA |
561 | \f |
562 | /* | |
1045e3ba EA |
563 | ** LOOKUP -- look up an SCCS command name. |
564 | ** | |
565 | ** Parameters: | |
566 | ** name -- the name of the command to look up. | |
567 | ** | |
568 | ** Returns: | |
569 | ** ptr to command descriptor for this command. | |
570 | ** NULL if no such entry. | |
571 | ** | |
572 | ** Side Effects: | |
573 | ** none. | |
574 | */ | |
575 | ||
576 | struct sccsprog * | |
577 | lookup(name) | |
578 | char *name; | |
579 | { | |
580 | register struct sccsprog *cmd; | |
581 | ||
582 | for (cmd = SccsProg; cmd->sccsname != NULL; cmd++) | |
583 | { | |
584 | if (strcmp(cmd->sccsname, name) == 0) | |
585 | return (cmd); | |
586 | } | |
587 | return (NULL); | |
588 | } | |
2d351698 EA |
589 | \f |
590 | /* | |
e8a6a730 EA |
591 | ** CALLPROG -- call a program |
592 | ** | |
1dbb3fe7 | 593 | ** Used to call the SCCS programs. |
e8a6a730 EA |
594 | ** |
595 | ** Parameters: | |
596 | ** progpath -- pathname of the program to call. | |
597 | ** flags -- status flags from the command descriptors. | |
598 | ** argv -- an argument vector to pass to the program. | |
599 | ** forkflag -- if true, fork before calling, else just | |
600 | ** exec. | |
601 | ** | |
602 | ** Returns: | |
603 | ** The exit status of the program. | |
604 | ** Nothing if forkflag == FALSE. | |
605 | ** | |
606 | ** Side Effects: | |
607 | ** Can exit if forkflag == FALSE. | |
608 | */ | |
4535945e | 609 | |
a97ecd0d EA |
610 | callprog(progpath, flags, argv, forkflag) |
611 | char *progpath; | |
612 | short flags; | |
613 | char **argv; | |
614 | bool forkflag; | |
615 | { | |
a97ecd0d | 616 | register int i; |
e672376b | 617 | auto int st; |
1dbb3fe7 EA |
618 | |
619 | # ifdef DEBUG | |
620 | if (Debug) | |
621 | { | |
622 | printf("callprog:\n"); | |
623 | for (i = 0; argv[i] != NULL; i++) | |
624 | printf("\t\"%s\"\n", argv[i]); | |
625 | } | |
626 | # endif | |
a97ecd0d EA |
627 | |
628 | if (*argv == NULL) | |
629 | return (-1); | |
2a0234bf | 630 | |
1cc2dcec | 631 | /* |
4535945e | 632 | ** Fork if appropriate. |
1cc2dcec EA |
633 | */ |
634 | ||
a97ecd0d EA |
635 | if (forkflag) |
636 | { | |
27e36d02 EA |
637 | # ifdef DEBUG |
638 | if (Debug) | |
639 | printf("Forking\n"); | |
640 | # endif | |
a97ecd0d EA |
641 | i = fork(); |
642 | if (i < 0) | |
643 | { | |
d266e8cb | 644 | syserr("cannot fork"); |
a97ecd0d EA |
645 | exit(EX_OSERR); |
646 | } | |
647 | else if (i > 0) | |
e672376b EA |
648 | { |
649 | wait(&st); | |
e8a6a730 EA |
650 | if ((st & 0377) == 0) |
651 | st = (st >> 8) & 0377; | |
629c0863 EA |
652 | if (OutFile >= 0) |
653 | { | |
654 | close(OutFile); | |
655 | OutFile = -1; | |
656 | } | |
e672376b EA |
657 | return (st); |
658 | } | |
a97ecd0d | 659 | } |
629c0863 EA |
660 | else if (OutFile >= 0) |
661 | { | |
662 | syserr("callprog: setting stdout w/o forking"); | |
663 | exit(EX_SOFTWARE); | |
664 | } | |
a97ecd0d | 665 | |
629c0863 | 666 | /* set protection as appropriate */ |
a97ecd0d EA |
667 | if (bitset(REALUSER, flags)) |
668 | setuid(getuid()); | |
a97ecd0d | 669 | |
629c0863 EA |
670 | /* change standard input & output if needed */ |
671 | if (OutFile >= 0) | |
672 | { | |
673 | close(1); | |
674 | dup(OutFile); | |
675 | close(OutFile); | |
676 | } | |
677 | ||
678 | /* call real SCCS program */ | |
4535945e | 679 | execv(progpath, argv); |
d266e8cb | 680 | syserr("cannot execute %s", progpath); |
1cc2dcec | 681 | exit(EX_UNAVAILABLE); |
64dc8483 | 682 | /*NOTREACHED*/ |
1cc2dcec | 683 | } |
2d351698 EA |
684 | \f |
685 | /* | |
e2758dc3 EA |
686 | ** MAKEFILE -- make filename of SCCS file |
687 | ** | |
688 | ** If the name passed is already the name of an SCCS file, | |
689 | ** just return it. Otherwise, munge the name into the name | |
690 | ** of the actual SCCS file. | |
691 | ** | |
692 | ** There are cases when it is not clear what you want to | |
693 | ** do. For example, if SccsPath is an absolute pathname | |
694 | ** and the name given is also an absolute pathname, we go | |
695 | ** for SccsPath (& only use the last component of the name | |
696 | ** passed) -- this is important for security reasons (if | |
697 | ** sccs is being used as a setuid front end), but not | |
698 | ** particularly intuitive. | |
699 | ** | |
700 | ** Parameters: | |
701 | ** name -- the file name to be munged. | |
702 | ** | |
703 | ** Returns: | |
704 | ** The pathname of the sccs file. | |
705 | ** NULL on error. | |
706 | ** | |
707 | ** Side Effects: | |
708 | ** none. | |
709 | */ | |
1cc2dcec EA |
710 | |
711 | char * | |
712 | makefile(name) | |
713 | char *name; | |
714 | { | |
715 | register char *p; | |
1cc2dcec | 716 | char buf[512]; |
1cc2dcec | 717 | extern char *malloc(); |
e2758dc3 | 718 | extern char *rindex(); |
8e7b9e7e EA |
719 | extern bool isdir(); |
720 | register char *q; | |
e2758dc3 EA |
721 | |
722 | p = rindex(name, '/'); | |
723 | if (p == NULL) | |
724 | p = name; | |
725 | else | |
726 | p++; | |
1cc2dcec EA |
727 | |
728 | /* | |
8e7b9e7e | 729 | ** See if the name can be used as-is. |
1cc2dcec EA |
730 | */ |
731 | ||
8e7b9e7e EA |
732 | if (SccsPath[0] != '/' || name[0] == '/' || strncmp(name, "./", 2) == 0) |
733 | { | |
734 | if (strncmp(p, "s.", 2) == 0) | |
735 | return (name); | |
736 | if (isdir(name)) | |
737 | return (name); | |
738 | } | |
e2758dc3 EA |
739 | |
740 | /* | |
8e7b9e7e | 741 | ** Create the actual pathname. |
e2758dc3 EA |
742 | */ |
743 | ||
e1e64d36 | 744 | /* first the directory part */ |
8e7b9e7e | 745 | if (name[0] != '/') |
1cc2dcec | 746 | { |
02ec3e87 | 747 | strcpy(buf, SccsDir); |
e2758dc3 EA |
748 | strcat(buf, "/"); |
749 | } | |
750 | else | |
751 | strcpy(buf, ""); | |
e1e64d36 EA |
752 | |
753 | /* then the head of the pathname */ | |
8e7b9e7e EA |
754 | strncat(buf, name, p - name); |
755 | q = &buf[strlen(buf)]; | |
756 | strcpy(q, p); | |
757 | if (strncmp(p, "s.", 2) != 0 && !isdir(buf)) | |
e2758dc3 | 758 | { |
e1e64d36 | 759 | /* sorry, no; copy the SCCS pathname & the "s." */ |
02ec3e87 EA |
760 | strcpy(q, SccsPath); |
761 | strcat(buf, "/s."); | |
e1e64d36 EA |
762 | |
763 | /* and now the end of the name */ | |
e2758dc3 EA |
764 | strcat(buf, p); |
765 | } | |
1cc2dcec | 766 | |
e1e64d36 | 767 | /* if i haven't changed it, why did I do all this? */ |
02ec3e87 EA |
768 | if (strcmp(buf, name) == 0) |
769 | p = name; | |
770 | ||
771 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
1cc2dcec | 772 | } |
399058e3 | 773 | \f/* |
8e7b9e7e EA |
774 | ** ISDIR -- return true if the argument is a directory. |
775 | ** | |
776 | ** Parameters: | |
777 | ** name -- the pathname of the file to check. | |
778 | ** | |
779 | ** Returns: | |
780 | ** TRUE if 'name' is a directory, FALSE otherwise. | |
781 | ** | |
782 | ** Side Effects: | |
783 | ** none. | |
784 | */ | |
785 | ||
786 | bool | |
787 | isdir(name) | |
788 | char *name; | |
789 | { | |
790 | struct stat stbuf; | |
791 | ||
792 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
793 | } | |
2d351698 EA |
794 | \f |
795 | /* | |
e2758dc3 EA |
796 | ** SAFEPATH -- determine whether a pathname is "safe" |
797 | ** | |
798 | ** "Safe" pathnames only allow you to get deeper into the | |
799 | ** directory structure, i.e., full pathnames and ".." are | |
800 | ** not allowed. | |
801 | ** | |
802 | ** Parameters: | |
803 | ** p -- the name to check. | |
804 | ** | |
805 | ** Returns: | |
806 | ** TRUE -- if the path is safe. | |
807 | ** FALSE -- if the path is not safe. | |
808 | ** | |
809 | ** Side Effects: | |
810 | ** Prints a message if the path is not safe. | |
811 | */ | |
812 | ||
813 | bool | |
814 | safepath(p) | |
815 | register char *p; | |
816 | { | |
817 | extern char *index(); | |
818 | ||
819 | if (*p != '/') | |
820 | { | |
821 | while (strncmp(p, "../", 3) != 0 && strcmp(p, "..") != 0) | |
822 | { | |
823 | p = index(p, '/'); | |
824 | if (p == NULL) | |
825 | return (TRUE); | |
826 | p++; | |
827 | } | |
828 | } | |
829 | ||
830 | printf("You may not use full pathnames or \"..\"\n"); | |
831 | return (FALSE); | |
832 | } | |
2d351698 EA |
833 | \f |
834 | /* | |
399058e3 EA |
835 | ** CLEAN -- clean out recreatable files |
836 | ** | |
837 | ** Any file for which an "s." file exists but no "p." file | |
838 | ** exists in the current directory is purged. | |
839 | ** | |
840 | ** Parameters: | |
c03d198b EA |
841 | ** mode -- tells whether this came from a "clean", "info", or |
842 | ** "check" command. | |
843 | ** argv -- the rest of the argument vector. | |
399058e3 EA |
844 | ** |
845 | ** Returns: | |
846 | ** none. | |
847 | ** | |
848 | ** Side Effects: | |
89819fbe EA |
849 | ** Removes files in the current directory. |
850 | ** Prints information regarding files being edited. | |
851 | ** Exits if a "check" command. | |
399058e3 EA |
852 | */ |
853 | ||
c03d198b | 854 | clean(mode, argv) |
89819fbe | 855 | int mode; |
c03d198b | 856 | char **argv; |
399058e3 EA |
857 | { |
858 | struct direct dir; | |
399058e3 | 859 | char buf[100]; |
705c2473 | 860 | char *bufend; |
db4904e0 EA |
861 | register FILE *dirfd; |
862 | register char *basefile; | |
d7f27f60 | 863 | bool gotedit; |
c03d198b | 864 | bool gotpfent; |
bb9b2f29 | 865 | FILE *pfp; |
c03d198b EA |
866 | bool nobranch = FALSE; |
867 | extern struct pfile *getpfent(); | |
868 | register struct pfile *pf; | |
869 | register char **ap; | |
6aac25be EA |
870 | extern char *username(); |
871 | char *usernm = NULL; | |
705c2473 EA |
872 | char *subdir = NULL; |
873 | char *cmdname; | |
c03d198b EA |
874 | |
875 | /* | |
876 | ** Process the argv | |
877 | */ | |
878 | ||
705c2473 EA |
879 | cmdname = *argv; |
880 | for (ap = argv; *++ap != NULL; ) | |
c03d198b | 881 | { |
6aac25be EA |
882 | if (**ap == '-') |
883 | { | |
884 | /* we have a flag */ | |
885 | switch ((*ap)[1]) | |
886 | { | |
887 | case 'b': | |
888 | nobranch = TRUE; | |
889 | break; | |
890 | ||
891 | case 'u': | |
892 | if ((*ap)[2] != '\0') | |
893 | usernm = &(*ap)[2]; | |
894 | else if (ap[1] != NULL && ap[1][0] != '-') | |
895 | usernm = *++ap; | |
896 | else | |
897 | usernm = username(); | |
898 | break; | |
899 | } | |
900 | } | |
705c2473 EA |
901 | else |
902 | { | |
903 | if (subdir != NULL) | |
904 | usrerr("too many args"); | |
905 | else | |
906 | subdir = *ap; | |
907 | } | |
c03d198b | 908 | } |
399058e3 | 909 | |
e1e64d36 EA |
910 | /* |
911 | ** Find and open the SCCS directory. | |
912 | */ | |
913 | ||
0c925940 EA |
914 | strcpy(buf, SccsDir); |
915 | if (buf[0] != '\0') | |
916 | strcat(buf, "/"); | |
705c2473 EA |
917 | if (subdir != NULL) |
918 | { | |
919 | strcat(buf, subdir); | |
920 | strcat(buf, "/"); | |
921 | } | |
0c925940 | 922 | strcat(buf, SccsPath); |
705c2473 | 923 | bufend = &buf[strlen(buf)]; |
e1e64d36 | 924 | |
0c925940 | 925 | dirfd = fopen(buf, "r"); |
399058e3 EA |
926 | if (dirfd == NULL) |
927 | { | |
0c925940 | 928 | usrerr("cannot open %s", buf); |
e8a6a730 | 929 | return (EX_NOINPUT); |
399058e3 EA |
930 | } |
931 | ||
932 | /* | |
933 | ** Scan the SCCS directory looking for s. files. | |
e1e64d36 EA |
934 | ** gotedit tells whether we have tried to clean any |
935 | ** files that are being edited. | |
399058e3 EA |
936 | */ |
937 | ||
d7f27f60 | 938 | gotedit = FALSE; |
64dc8483 | 939 | while (fread((char *)&dir, sizeof dir, 1, dirfd) != NULL) |
399058e3 | 940 | { |
b8d1a34d | 941 | if (dir.d_ino == 0 || strncmp(dir.d_name, "s.", 2) != 0) |
399058e3 EA |
942 | continue; |
943 | ||
944 | /* got an s. file -- see if the p. file exists */ | |
705c2473 EA |
945 | strcpy(bufend, "/p."); |
946 | basefile = bufend + 3; | |
b8d1a34d | 947 | strncpy(basefile, &dir.d_name[2], sizeof dir.d_name - 2); |
bb9b2f29 | 948 | basefile[sizeof dir.d_name - 2] = '\0'; |
c03d198b EA |
949 | |
950 | /* | |
951 | ** open and scan the p-file. | |
952 | ** 'gotpfent' tells if we have found a valid p-file | |
953 | ** entry. | |
954 | */ | |
955 | ||
bb9b2f29 | 956 | pfp = fopen(buf, "r"); |
c03d198b | 957 | gotpfent = FALSE; |
bb9b2f29 | 958 | if (pfp != NULL) |
db4904e0 | 959 | { |
e1e64d36 | 960 | /* the file exists -- report it's contents */ |
c03d198b | 961 | while ((pf = getpfent(pfp)) != NULL) |
bdd50a56 | 962 | { |
c03d198b EA |
963 | if (nobranch && isbranch(pf->p_nsid)) |
964 | continue; | |
6aac25be EA |
965 | if (usernm != NULL && strcmp(usernm, pf->p_user) != 0 && mode != CLEANC) |
966 | continue; | |
c03d198b EA |
967 | gotedit = TRUE; |
968 | gotpfent = TRUE; | |
969 | if (mode == TELLC) | |
970 | { | |
971 | printf("%s\n", basefile); | |
972 | break; | |
973 | } | |
daa96559 EA |
974 | printf("%12s: being edited: ", basefile); |
975 | putpfent(pf, stdout); | |
bdd50a56 | 976 | } |
bb9b2f29 | 977 | fclose(pfp); |
db4904e0 | 978 | } |
399058e3 EA |
979 | |
980 | /* the s. file exists and no p. file exists -- unlink the g-file */ | |
9e46d67d | 981 | if (mode == CLEANC && !gotpfent) |
db4904e0 | 982 | { |
b8d1a34d | 983 | strncpy(buf, &dir.d_name[2], sizeof dir.d_name - 2); |
db4904e0 EA |
984 | buf[sizeof dir.d_name - 2] = '\0'; |
985 | unlink(buf); | |
986 | } | |
399058e3 EA |
987 | } |
988 | ||
e1e64d36 | 989 | /* cleanup & report results */ |
399058e3 | 990 | fclose(dirfd); |
89819fbe | 991 | if (!gotedit && mode == INFOC) |
6aac25be EA |
992 | { |
993 | printf("Nothing being edited"); | |
994 | if (nobranch) | |
995 | printf(" (on trunk)"); | |
996 | if (usernm == NULL) | |
997 | printf("\n"); | |
998 | else | |
999 | printf(" by %s\n", usernm); | |
1000 | } | |
89819fbe EA |
1001 | if (mode == CHECKC) |
1002 | exit(gotedit); | |
e8a6a730 | 1003 | return (EX_OK); |
399058e3 | 1004 | } |
2d351698 | 1005 | \f |
c03d198b EA |
1006 | /* |
1007 | ** ISBRANCH -- is the SID a branch? | |
1008 | ** | |
1009 | ** Parameters: | |
1010 | ** sid -- the sid to check. | |
1011 | ** | |
1012 | ** Returns: | |
1013 | ** TRUE if the sid represents a branch. | |
1014 | ** FALSE otherwise. | |
1015 | ** | |
1016 | ** Side Effects: | |
1017 | ** none. | |
1018 | */ | |
1019 | ||
1020 | isbranch(sid) | |
1021 | char *sid; | |
1022 | { | |
1023 | register char *p; | |
1024 | int dots; | |
1025 | ||
1026 | dots = 0; | |
1027 | for (p = sid; *p != '\0'; p++) | |
1028 | { | |
1029 | if (*p == '.') | |
1030 | dots++; | |
1031 | if (dots > 1) | |
1032 | return (TRUE); | |
1033 | } | |
1034 | return (FALSE); | |
1035 | } | |
1036 | \f | |
2d351698 | 1037 | /* |
61886f2a EA |
1038 | ** UNEDIT -- unedit a file |
1039 | ** | |
1040 | ** Checks to see that the current user is actually editting | |
1041 | ** the file and arranges that s/he is not editting it. | |
1042 | ** | |
1043 | ** Parameters: | |
fdca7108 | 1044 | ** fn -- the name of the file to be unedited. |
61886f2a EA |
1045 | ** |
1046 | ** Returns: | |
9c3bf134 EA |
1047 | ** TRUE -- if the file was successfully unedited. |
1048 | ** FALSE -- if the file was not unedited for some | |
1049 | ** reason. | |
61886f2a EA |
1050 | ** |
1051 | ** Side Effects: | |
1052 | ** fn is removed | |
1053 | ** entries are removed from pfile. | |
1054 | */ | |
1055 | ||
9c3bf134 | 1056 | bool |
61886f2a EA |
1057 | unedit(fn) |
1058 | char *fn; | |
1059 | { | |
1060 | register FILE *pfp; | |
1061 | char *pfn; | |
1062 | static char tfn[] = "/tmp/sccsXXXXX"; | |
1063 | FILE *tfp; | |
61886f2a EA |
1064 | register char *q; |
1065 | bool delete = FALSE; | |
1066 | bool others = FALSE; | |
1067 | char *myname; | |
6aac25be | 1068 | extern char *username(); |
61886f2a | 1069 | struct pfile *pent; |
c03d198b | 1070 | extern struct pfile *getpfent(); |
61886f2a | 1071 | char buf[120]; |
1dbb3fe7 | 1072 | extern char *makefile(); |
61886f2a EA |
1073 | |
1074 | /* make "s." filename & find the trailing component */ | |
1075 | pfn = makefile(fn); | |
e2758dc3 EA |
1076 | if (pfn == NULL) |
1077 | return (FALSE); | |
1078 | q = rindex(pfn, '/'); | |
1079 | if (q == NULL) | |
1080 | q = &pfn[-1]; | |
1081 | if (q[1] != 's' || q[2] != '.') | |
61886f2a | 1082 | { |
d266e8cb | 1083 | usrerr("bad file name \"%s\"", fn); |
9c3bf134 | 1084 | return (FALSE); |
61886f2a EA |
1085 | } |
1086 | ||
e1e64d36 | 1087 | /* turn "s." into "p." & try to open it */ |
61886f2a EA |
1088 | *++q = 'p'; |
1089 | ||
1090 | pfp = fopen(pfn, "r"); | |
1091 | if (pfp == NULL) | |
1092 | { | |
fdca7108 | 1093 | printf("%12s: not being edited\n", fn); |
9c3bf134 | 1094 | return (FALSE); |
61886f2a EA |
1095 | } |
1096 | ||
e1e64d36 | 1097 | /* create temp file for editing p-file */ |
61886f2a EA |
1098 | mktemp(tfn); |
1099 | tfp = fopen(tfn, "w"); | |
1100 | if (tfp == NULL) | |
1101 | { | |
d266e8cb | 1102 | usrerr("cannot create \"%s\"", tfn); |
61886f2a EA |
1103 | exit(EX_OSERR); |
1104 | } | |
1105 | ||
e1e64d36 | 1106 | /* figure out who I am */ |
6aac25be | 1107 | myname = username(); |
e1e64d36 EA |
1108 | |
1109 | /* | |
1110 | ** Copy p-file to temp file, doing deletions as needed. | |
1111 | */ | |
1112 | ||
c03d198b | 1113 | while ((pent = getpfent(pfp)) != NULL) |
61886f2a EA |
1114 | { |
1115 | if (strcmp(pent->p_user, myname) == 0) | |
1116 | { | |
1117 | /* a match */ | |
1118 | delete++; | |
1119 | } | |
1120 | else | |
1121 | { | |
e1e64d36 | 1122 | /* output it again */ |
daa96559 | 1123 | putpfent(pent, tfp); |
61886f2a EA |
1124 | others++; |
1125 | } | |
1126 | } | |
1127 | ||
1128 | /* do final cleanup */ | |
1129 | if (others) | |
1130 | { | |
e1e64d36 | 1131 | /* copy it back (perhaps it should be linked?) */ |
61886f2a EA |
1132 | if (freopen(tfn, "r", tfp) == NULL) |
1133 | { | |
d266e8cb | 1134 | syserr("cannot reopen \"%s\"", tfn); |
61886f2a EA |
1135 | exit(EX_OSERR); |
1136 | } | |
1137 | if (freopen(pfn, "w", pfp) == NULL) | |
1138 | { | |
d266e8cb | 1139 | usrerr("cannot create \"%s\"", pfn); |
9c3bf134 | 1140 | return (FALSE); |
61886f2a EA |
1141 | } |
1142 | while (fgets(buf, sizeof buf, tfp) != NULL) | |
1143 | fputs(buf, pfp); | |
1144 | } | |
1145 | else | |
1146 | { | |
e1e64d36 | 1147 | /* it's empty -- remove it */ |
61886f2a EA |
1148 | unlink(pfn); |
1149 | } | |
1150 | fclose(tfp); | |
1151 | fclose(pfp); | |
1152 | unlink(tfn); | |
1153 | ||
e1e64d36 | 1154 | /* actually remove the g-file */ |
61886f2a EA |
1155 | if (delete) |
1156 | { | |
4cd62a3c EA |
1157 | unlink(tail(fn)); |
1158 | printf("%12s: removed\n", tail(fn)); | |
9c3bf134 | 1159 | return (TRUE); |
61886f2a EA |
1160 | } |
1161 | else | |
1162 | { | |
fdca7108 | 1163 | printf("%12s: not being edited by you\n", fn); |
9c3bf134 | 1164 | return (FALSE); |
61886f2a EA |
1165 | } |
1166 | } | |
2d351698 | 1167 | \f |
629c0863 EA |
1168 | /* |
1169 | ** DODIFF -- diff an s-file against a g-file | |
1170 | ** | |
1171 | ** Parameters: | |
1172 | ** getv -- argv for the 'get' command. | |
1173 | ** gfile -- name of the g-file to diff against. | |
1174 | ** | |
1175 | ** Returns: | |
1176 | ** Result of get. | |
1177 | ** | |
1178 | ** Side Effects: | |
1179 | ** none. | |
1180 | */ | |
1181 | ||
1182 | dodiff(getv, gfile) | |
1183 | char **getv; | |
1184 | char *gfile; | |
1185 | { | |
1186 | int pipev[2]; | |
1187 | int rval; | |
1188 | register int i; | |
1189 | register int pid; | |
1190 | auto int st; | |
1191 | extern int errno; | |
1192 | int (*osig)(); | |
8dace933 EA |
1193 | register char *p; |
1194 | register char **ap; | |
1195 | bool makescript = FALSE; | |
629c0863 | 1196 | |
8dace933 EA |
1197 | for (ap = getv; *ap != NULL; ap++) |
1198 | { | |
1199 | p = *ap; | |
1200 | if (p[0] == '-') | |
1201 | { | |
1202 | switch (p[1]) | |
1203 | { | |
1204 | case 'E': | |
1205 | p[1] = 'e'; | |
1206 | makescript = TRUE; | |
1207 | break; | |
1208 | } | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | if (makescript) | |
1213 | { | |
1214 | printf("sccs edit %s\n", gfile); | |
1215 | printf("ed - %s << 'xxEOFxx'\n", gfile); | |
1216 | } | |
1217 | else | |
1218 | printf("\n------- %s -------\n", gfile); | |
73b61bcf | 1219 | fflush(stdout); |
d597ad9e | 1220 | |
e1e64d36 | 1221 | /* create context for diff to run in */ |
629c0863 EA |
1222 | if (pipe(pipev) < 0) |
1223 | { | |
1224 | syserr("dodiff: pipe failed"); | |
1225 | exit(EX_OSERR); | |
1226 | } | |
1227 | if ((pid = fork()) < 0) | |
1228 | { | |
1229 | syserr("dodiff: fork failed"); | |
1230 | exit(EX_OSERR); | |
1231 | } | |
1232 | else if (pid > 0) | |
1233 | { | |
1234 | /* in parent; run get */ | |
1235 | OutFile = pipev[1]; | |
1236 | close(pipev[0]); | |
73b61bcf | 1237 | rval = command(&getv[1], TRUE, "get:rcixt -s -k -p"); |
629c0863 EA |
1238 | osig = signal(SIGINT, SIG_IGN); |
1239 | while (((i = wait(&st)) >= 0 && i != pid) || errno == EINTR) | |
1240 | errno = 0; | |
1241 | signal(SIGINT, osig); | |
1242 | /* ignore result of diff */ | |
1243 | } | |
1244 | else | |
1245 | { | |
1246 | /* in child, run diff */ | |
1247 | if (close(pipev[1]) < 0 || close(0) < 0 || | |
1248 | dup(pipev[0]) != 0 || close(pipev[0]) < 0) | |
1249 | { | |
1250 | syserr("dodiff: magic failed"); | |
1251 | exit(EX_OSERR); | |
1252 | } | |
73b61bcf | 1253 | command(&getv[1], FALSE, "-diff:elsfhbC"); |
629c0863 | 1254 | } |
8dace933 EA |
1255 | |
1256 | if (makescript) | |
1257 | { | |
1258 | printf("w\n"); | |
1259 | printf("q\n"); | |
1260 | printf("'xxEOFxx'\n"); | |
1261 | printf("sccs delta %s\n", gfile); | |
1262 | } | |
1263 | ||
629c0863 EA |
1264 | return (rval); |
1265 | } | |
1266 | \f | |
4cd62a3c EA |
1267 | /* |
1268 | ** TAIL -- return tail of filename. | |
1269 | ** | |
1270 | ** Parameters: | |
1271 | ** fn -- the filename. | |
1272 | ** | |
1273 | ** Returns: | |
1274 | ** a pointer to the tail of the filename; e.g., given | |
1275 | ** "cmd/ls.c", "ls.c" is returned. | |
1276 | ** | |
1277 | ** Side Effects: | |
1278 | ** none. | |
1279 | */ | |
1280 | ||
1281 | char * | |
1282 | tail(fn) | |
1283 | register char *fn; | |
1284 | { | |
1285 | register char *p; | |
1286 | ||
1287 | for (p = fn; *p != 0; p++) | |
1288 | if (*p == '/' && p[1] != '\0' && p[1] != '/') | |
1289 | fn = &p[1]; | |
1290 | return (fn); | |
1291 | } | |
1292 | \f | |
2d351698 | 1293 | /* |
c03d198b | 1294 | ** GETPFENT -- get an entry from the p-file |
61886f2a EA |
1295 | ** |
1296 | ** Parameters: | |
1297 | ** pfp -- p-file file pointer | |
1298 | ** | |
1299 | ** Returns: | |
1300 | ** pointer to p-file struct for next entry | |
1301 | ** NULL on EOF or error | |
1302 | ** | |
1303 | ** Side Effects: | |
1304 | ** Each call wipes out results of previous call. | |
1305 | */ | |
1306 | ||
1307 | struct pfile * | |
c03d198b | 1308 | getpfent(pfp) |
61886f2a EA |
1309 | FILE *pfp; |
1310 | { | |
1311 | static struct pfile ent; | |
1312 | static char buf[120]; | |
1313 | register char *p; | |
1314 | extern char *nextfield(); | |
1315 | ||
1316 | if (fgets(buf, sizeof buf, pfp) == NULL) | |
1317 | return (NULL); | |
1318 | ||
1319 | ent.p_osid = p = buf; | |
1320 | ent.p_nsid = p = nextfield(p); | |
1321 | ent.p_user = p = nextfield(p); | |
1322 | ent.p_date = p = nextfield(p); | |
1323 | ent.p_time = p = nextfield(p); | |
daa96559 | 1324 | ent.p_aux = p = nextfield(p); |
61886f2a EA |
1325 | |
1326 | return (&ent); | |
1327 | } | |
1328 | ||
1329 | ||
1330 | char * | |
1331 | nextfield(p) | |
1332 | register char *p; | |
1333 | { | |
1334 | if (p == NULL || *p == '\0') | |
1335 | return (NULL); | |
1336 | while (*p != ' ' && *p != '\n' && *p != '\0') | |
1337 | p++; | |
1338 | if (*p == '\n' || *p == '\0') | |
1339 | { | |
1340 | *p = '\0'; | |
1341 | return (NULL); | |
1342 | } | |
1343 | *p++ = '\0'; | |
1344 | return (p); | |
1345 | } | |
daa96559 EA |
1346 | \f/* |
1347 | ** PUTPFENT -- output a p-file entry to a file | |
1348 | ** | |
1349 | ** Parameters: | |
1350 | ** pf -- the p-file entry | |
1351 | ** f -- the file to put it on. | |
1352 | ** | |
1353 | ** Returns: | |
1354 | ** none. | |
1355 | ** | |
1356 | ** Side Effects: | |
1357 | ** pf is written onto file f. | |
1358 | */ | |
1359 | ||
1360 | putpfent(pf, f) | |
1361 | register struct pfile *pf; | |
1362 | register FILE *f; | |
1363 | { | |
1364 | fprintf(f, "%s %s %s %s %s", pf->p_osid, pf->p_nsid, | |
1365 | pf->p_user, pf->p_date, pf->p_time); | |
1366 | if (pf->p_aux != NULL) | |
1367 | fprintf(f, " %s", pf->p_aux); | |
1368 | else | |
1369 | fprintf(f, "\n"); | |
1370 | } | |
2d351698 EA |
1371 | \f |
1372 | /* | |
d266e8cb EA |
1373 | ** USRERR -- issue user-level error |
1374 | ** | |
1375 | ** Parameters: | |
1376 | ** f -- format string. | |
1377 | ** p1-p3 -- parameters to a printf. | |
1378 | ** | |
1379 | ** Returns: | |
1380 | ** -1 | |
1381 | ** | |
1382 | ** Side Effects: | |
1383 | ** none. | |
1384 | */ | |
1385 | ||
64dc8483 | 1386 | /*VARARGS1*/ |
d266e8cb EA |
1387 | usrerr(f, p1, p2, p3) |
1388 | char *f; | |
1389 | { | |
1390 | fprintf(stderr, "\n%s: ", MyName); | |
1391 | fprintf(stderr, f, p1, p2, p3); | |
1392 | fprintf(stderr, "\n"); | |
1393 | ||
1394 | return (-1); | |
1395 | } | |
2d351698 EA |
1396 | \f |
1397 | /* | |
d266e8cb EA |
1398 | ** SYSERR -- print system-generated error. |
1399 | ** | |
1400 | ** Parameters: | |
1401 | ** f -- format string to a printf. | |
1402 | ** p1, p2, p3 -- parameters to f. | |
1403 | ** | |
1404 | ** Returns: | |
1405 | ** never. | |
1406 | ** | |
1407 | ** Side Effects: | |
1408 | ** none. | |
1409 | */ | |
1410 | ||
64dc8483 | 1411 | /*VARARGS1*/ |
d266e8cb EA |
1412 | syserr(f, p1, p2, p3) |
1413 | char *f; | |
1414 | { | |
1415 | extern int errno; | |
1416 | ||
1417 | fprintf(stderr, "\n%s SYSERR: ", MyName); | |
1418 | fprintf(stderr, f, p1, p2, p3); | |
1419 | fprintf(stderr, "\n"); | |
1420 | if (errno == 0) | |
1421 | exit(EX_SOFTWARE); | |
1422 | else | |
1423 | { | |
64dc8483 | 1424 | perror(NULL); |
d266e8cb EA |
1425 | exit(EX_OSERR); |
1426 | } | |
1427 | } | |
6aac25be EA |
1428 | \f/* |
1429 | ** USERNAME -- return name of the current user | |
1430 | ** | |
1431 | ** Parameters: | |
1432 | ** none | |
1433 | ** | |
1434 | ** Returns: | |
1435 | ** name of current user | |
1436 | ** | |
1437 | ** Side Effects: | |
1438 | ** none | |
1439 | */ | |
1440 | ||
1441 | char * | |
1442 | username() | |
1443 | { | |
1444 | # ifdef UIDUSER | |
1445 | extern struct passwd *getpwuid(); | |
1446 | register struct passwd *pw; | |
1447 | ||
1448 | pw = getpwuid(getuid()); | |
1449 | if (pw == NULL) | |
1450 | { | |
1451 | syserr("who are you? (uid=%d)", getuid()); | |
1452 | exit(EX_OSERR); | |
1453 | } | |
1454 | return (pw->pw_name); | |
1455 | # else | |
86b78a2b EA |
1456 | extern char *getlogin(); |
1457 | ||
6aac25be EA |
1458 | return (getlogin()); |
1459 | # endif UIDUSER | |
1460 | } |