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> |
1cc2dcec | 9 | |
27e713f7 EA |
10 | /* |
11 | ** SCCS.C -- human-oriented front end to the SCCS system. | |
12 | ** | |
13 | ** Without trying to add any functionality to speak of, this | |
14 | ** program tries to make SCCS a little more accessible to human | |
15 | ** types. The main thing it does is automatically put the | |
16 | ** string "SCCS/s." on the front of names. Also, it has a | |
17 | ** couple of things that are designed to shorten frequent | |
18 | ** combinations, e.g., "delget" which expands to a "delta" | |
19 | ** and a "get". | |
20 | ** | |
21 | ** This program can also function as a setuid front end. | |
22 | ** To do this, you should copy the source, renaming it to | |
23 | ** whatever you want, e.g., "syssccs". Change any defaults | |
24 | ** in the program (e.g., syssccs might default -d to | |
25 | ** "/usr/src/sys"). Then recompile and put the result | |
26 | ** as setuid to whomever you want. In this mode, sccs | |
27 | ** knows to not run setuid for certain programs in order | |
28 | ** to preserve security, and so forth. | |
29 | ** | |
30 | ** Usage: | |
31 | ** sccs [flags] command [args] | |
32 | ** | |
33 | ** Flags: | |
34 | ** -d<dir> <dir> represents a directory to search | |
35 | ** out of. It should be a full pathname | |
36 | ** for general usage. E.g., if <dir> is | |
37 | ** "/usr/src/sys", then a reference to the | |
38 | ** file "dev/bio.c" becomes a reference to | |
39 | ** "/usr/src/sys/dev/bio.c". | |
40 | ** -p<path> prepends <path> to the final component | |
41 | ** of the pathname. By default, this is | |
42 | ** "SCCS". For example, in the -d example | |
43 | ** above, the path then gets modified to | |
44 | ** "/usr/src/sys/dev/SCCS/s.bio.c". In | |
45 | ** more common usage (without the -d flag), | |
46 | ** "prog.c" would get modified to | |
47 | ** "SCCS/s.prog.c". In both cases, the | |
48 | ** "s." gets automatically prepended. | |
49 | ** -r run as the real user. | |
50 | ** | |
51 | ** Commands: | |
52 | ** admin, | |
53 | ** get, | |
54 | ** delta, | |
55 | ** rmdel, | |
56 | ** chghist, | |
57 | ** etc. Straight out of SCCS; only difference | |
58 | ** is that pathnames get modified as | |
59 | ** described above. | |
60 | ** edit Macro for "get -e". | |
61 | ** unedit Removes a file being edited, knowing | |
62 | ** about p-files, etc. | |
63 | ** delget Macro for "delta" followed by "get". | |
64 | ** deledit Macro for "delta" followed by "get -e". | |
65 | ** info Tell what files being edited. | |
66 | ** clean Remove all files that can be | |
67 | ** regenerated from SCCS files. | |
d266e8cb | 68 | ** check Like info, but return exit status, for |
27e713f7 EA |
69 | ** use in makefiles. |
70 | ** fix Remove a top delta & reedit, but save | |
71 | ** the previous changes in that delta. | |
72 | ** | |
73 | ** Compilation Flags: | |
74 | ** UIDUSER -- determine who the user is by looking at the | |
75 | ** uid rather than the login name -- for machines | |
76 | ** where SCCS gets the user in this way. | |
56151b9e | 77 | ** SCCSDIR -- if defined, forces the -d flag to take on |
d266e8cb EA |
78 | ** this value. This is so that the setuid |
79 | ** aspects of this program cannot be abused. | |
56151b9e EA |
80 | ** This flag also disables the -p flag. |
81 | ** SCCSPATH -- the default for the -p flag. | |
27082f2b EA |
82 | ** MYNAME -- the title this program should print when it |
83 | ** gives error messages. | |
27e713f7 EA |
84 | ** |
85 | ** Compilation Instructions: | |
86 | ** cc -O -n -s sccs.c | |
27082f2b EA |
87 | ** The flags listed above can be -D defined to simplify |
88 | ** recompilation for variant versions. | |
27e713f7 EA |
89 | ** |
90 | ** Author: | |
91 | ** Eric Allman, UCB/INGRES | |
56151b9e | 92 | ** Copyright 1980 Regents of the University of California |
27e713f7 EA |
93 | */ |
94 | ||
73b61bcf | 95 | static char SccsId[] = "@(#)sccs.c 1.52 %G%"; |
2d351698 | 96 | \f |
56151b9e EA |
97 | /******************* Configuration Information ********************/ |
98 | ||
27082f2b EA |
99 | /* special defines for local berkeley systems */ |
100 | # include <whoami.h> | |
101 | ||
27e713f7 EA |
102 | # ifdef CSVAX |
103 | # define UIDUSER | |
56151b9e EA |
104 | # define PROGPATH(name) "/usr/local/name" |
105 | # endif CSVAX | |
106 | ||
f0b9a52d EA |
107 | # ifdef INGVAX |
108 | # define PROGPATH(name) "/usr/local/name" | |
109 | # endif INGVAX | |
110 | ||
0bc81196 EA |
111 | # ifdef CORY |
112 | # define PROGPATH(name) "/usr/eecs/bin/name" | |
113 | # endif CORY | |
114 | ||
27082f2b EA |
115 | /* end of berkeley systems defines */ |
116 | ||
117 | # ifndef SCCSPATH | |
2d351698 | 118 | # define SCCSPATH "SCCS" /* pathname in which to find s-files */ |
27082f2b | 119 | # endif NOT SCCSPATH |
56151b9e | 120 | |
27082f2b EA |
121 | # ifndef MYNAME |
122 | # define MYNAME "sccs" /* name used for printing errors */ | |
123 | # endif NOT MYNAME | |
27e713f7 | 124 | |
2d351698 EA |
125 | # ifndef PROGPATH |
126 | # define PROGPATH(name) "/usr/sccs/name" /* place to find binaries */ | |
127 | # endif PROGPATH | |
2a0234bf | 128 | |
2d351698 EA |
129 | /**************** End of Configuration Information ****************/ |
130 | \f | |
2a0234bf | 131 | typedef char bool; |
a97ecd0d EA |
132 | # define TRUE 1 |
133 | # define FALSE 0 | |
81dc6403 | 134 | |
e1e64d36 EA |
135 | # define bitset(bit, word) ((bool) ((bit) & (word))) |
136 | ||
27e713f7 EA |
137 | # ifdef UIDUSER |
138 | # include <pwd.h> | |
139 | # endif UIDUSER | |
140 | ||
1cc2dcec EA |
141 | struct sccsprog |
142 | { | |
143 | char *sccsname; /* name of SCCS routine */ | |
a97ecd0d EA |
144 | short sccsoper; /* opcode, see below */ |
145 | short sccsflags; /* flags, see below */ | |
1cc2dcec EA |
146 | char *sccspath; /* pathname of binary implementing */ |
147 | }; | |
148 | ||
a97ecd0d EA |
149 | /* values for sccsoper */ |
150 | # define PROG 0 /* call a program */ | |
e672376b | 151 | # define CMACRO 1 /* command substitution macro */ |
4535945e | 152 | # define FIX 2 /* fix a delta */ |
399058e3 | 153 | # define CLEAN 3 /* clean out recreatable files */ |
61886f2a | 154 | # define UNEDIT 4 /* unedit a file */ |
c9ac6819 | 155 | # define SHELL 5 /* call a shell file (like PROG) */ |
629c0863 | 156 | # define DIFFS 6 /* diff between sccs & file out */ |
73b61bcf | 157 | # define DODIFF 7 /* internal call to diff program */ |
a97ecd0d | 158 | |
2a0234bf | 159 | /* bits for sccsflags */ |
a97ecd0d EA |
160 | # define NO_SDOT 0001 /* no s. on front of args */ |
161 | # define REALUSER 0002 /* protected (e.g., admin) */ | |
1cc2dcec | 162 | |
89819fbe EA |
163 | /* modes for the "clean", "info", "check" ops */ |
164 | # define CLEANC 0 /* clean command */ | |
165 | # define INFOC 1 /* info command */ | |
166 | # define CHECKC 2 /* check command */ | |
bdd50a56 | 167 | # define TELLC 3 /* give list of files being edited */ |
89819fbe | 168 | |
2d351698 EA |
169 | /* |
170 | ** Description of commands known to this program. | |
171 | ** First argument puts the command into a class. Second arg is | |
172 | ** info regarding treatment of this command. Third arg is a | |
173 | ** list of flags this command accepts from macros, etc. Fourth | |
174 | ** arg is the pathname of the implementing program, or the | |
175 | ** macro definition, or the arg to a sub-algorithm. | |
176 | */ | |
7a8ba074 | 177 | |
1cc2dcec EA |
178 | struct sccsprog SccsProg[] = |
179 | { | |
6aac25be EA |
180 | "admin", PROG, REALUSER, PROGPATH(admin), |
181 | "chghist", PROG, 0, PROGPATH(rmdel), | |
182 | "comb", PROG, 0, PROGPATH(comb), | |
183 | "delta", PROG, 0, PROGPATH(delta), | |
184 | "get", PROG, 0, PROGPATH(get), | |
185 | "help", PROG, NO_SDOT, PROGPATH(help), | |
186 | "prt", PROG, 0, PROGPATH(prt), | |
187 | "rmdel", PROG, REALUSER, PROGPATH(rmdel), | |
188 | "what", PROG, NO_SDOT, PROGPATH(what), | |
189 | "sccsdiff", SHELL, REALUSER, PROGPATH(sccsdiff), | |
190 | "edit", CMACRO, NO_SDOT, "get -e", | |
191 | "delget", CMACRO, NO_SDOT, "delta:mysrp/get:ixbeskcl -t", | |
192 | "deledit", CMACRO, NO_SDOT, "delta:mysrp/get:ixbskcl -e -t", | |
193 | "fix", FIX, NO_SDOT, NULL, | |
194 | "clean", CLEAN, REALUSER|NO_SDOT, (char *) CLEANC, | |
195 | "info", CLEAN, REALUSER|NO_SDOT, (char *) INFOC, | |
196 | "check", CLEAN, REALUSER|NO_SDOT, (char *) CHECKC, | |
197 | "tell", CLEAN, REALUSER|NO_SDOT, (char *) TELLC, | |
198 | "unedit", UNEDIT, NO_SDOT, NULL, | |
199 | "diffs", DIFFS, NO_SDOT|REALUSER, NULL, | |
73b61bcf | 200 | "-diff", DODIFF, NO_SDOT|REALUSER, PROGPATH(bdiff), |
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 */ | |
212 | }; | |
213 | ||
56151b9e EA |
214 | char *SccsPath = SCCSPATH; /* pathname of SCCS files */ |
215 | # ifdef SCCSDIR | |
216 | char *SccsDir = SCCSDIR; /* directory to begin search from */ | |
d266e8cb | 217 | # else |
56151b9e | 218 | char *SccsDir = ""; |
d266e8cb | 219 | # endif |
27082f2b | 220 | char MyName[] = MYNAME; /* name used in messages */ |
629c0863 | 221 | int OutFile = -1; /* override output file for commands */ |
2a0234bf | 222 | bool RealUser; /* if set, running as real user */ |
27e36d02 EA |
223 | # ifdef DEBUG |
224 | bool Debug; /* turn on tracing */ | |
225 | # endif | |
2d351698 | 226 | \f |
1cc2dcec EA |
227 | main(argc, argv) |
228 | int argc; | |
229 | char **argv; | |
230 | { | |
231 | register char *p; | |
1045e3ba | 232 | extern struct sccsprog *lookup(); |
e8a6a730 | 233 | register int i; |
1cc2dcec EA |
234 | |
235 | /* | |
236 | ** Detect and decode flags intended for this program. | |
237 | */ | |
238 | ||
a97ecd0d EA |
239 | if (argc < 2) |
240 | { | |
d266e8cb | 241 | fprintf(stderr, "Usage: %s [flags] command [flags]\n", MyName); |
a97ecd0d EA |
242 | exit(EX_USAGE); |
243 | } | |
244 | argv[argc] = NULL; | |
245 | ||
1045e3ba | 246 | if (lookup(argv[0]) == NULL) |
1cc2dcec | 247 | { |
1045e3ba | 248 | while ((p = *++argv) != NULL) |
1cc2dcec | 249 | { |
1045e3ba EA |
250 | if (*p != '-') |
251 | break; | |
252 | switch (*++p) | |
253 | { | |
254 | case 'r': /* run as real user */ | |
255 | setuid(getuid()); | |
256 | RealUser++; | |
257 | break; | |
258 | ||
56151b9e | 259 | # ifndef SCCSDIR |
1045e3ba EA |
260 | case 'p': /* path of sccs files */ |
261 | SccsPath = ++p; | |
262 | break; | |
263 | ||
02ec3e87 EA |
264 | case 'd': /* directory to search from */ |
265 | SccsDir = ++p; | |
266 | break; | |
d266e8cb | 267 | # endif |
02ec3e87 | 268 | |
27e36d02 EA |
269 | # ifdef DEBUG |
270 | case 'T': /* trace */ | |
271 | Debug++; | |
272 | break; | |
273 | # endif | |
274 | ||
1045e3ba | 275 | default: |
d266e8cb | 276 | usrerr("unknown option -%s", p); |
1045e3ba EA |
277 | break; |
278 | } | |
1cc2dcec | 279 | } |
1045e3ba EA |
280 | if (SccsPath[0] == '\0') |
281 | SccsPath = "."; | |
1cc2dcec EA |
282 | } |
283 | ||
5e6a7fa9 | 284 | i = command(argv, FALSE, ""); |
e8a6a730 | 285 | exit(i); |
a97ecd0d | 286 | } |
2d351698 EA |
287 | \f |
288 | /* | |
e8a6a730 EA |
289 | ** COMMAND -- look up and perform a command |
290 | ** | |
291 | ** This routine is the guts of this program. Given an | |
292 | ** argument vector, it looks up the "command" (argv[0]) | |
293 | ** in the configuration table and does the necessary stuff. | |
294 | ** | |
295 | ** Parameters: | |
296 | ** argv -- an argument vector to process. | |
297 | ** forkflag -- if set, fork before executing the command. | |
1dbb3fe7 EA |
298 | ** editflag -- if set, only include flags listed in the |
299 | ** sccsklets field of the command descriptor. | |
300 | ** arg0 -- a space-seperated list of arguments to insert | |
301 | ** before argv. | |
e8a6a730 EA |
302 | ** |
303 | ** Returns: | |
304 | ** zero -- command executed ok. | |
305 | ** else -- error status. | |
306 | ** | |
307 | ** Side Effects: | |
308 | ** none. | |
309 | */ | |
a97ecd0d | 310 | |
5e6a7fa9 | 311 | command(argv, forkflag, arg0) |
a97ecd0d | 312 | char **argv; |
e672376b | 313 | bool forkflag; |
1dbb3fe7 | 314 | char *arg0; |
a97ecd0d EA |
315 | { |
316 | register struct sccsprog *cmd; | |
317 | register char *p; | |
e672376b | 318 | char buf[40]; |
1045e3ba | 319 | extern struct sccsprog *lookup(); |
1dbb3fe7 EA |
320 | char *nav[1000]; |
321 | char **np; | |
c9ac6819 | 322 | register char **ap; |
9c3bf134 | 323 | register int i; |
c9ac6819 | 324 | register char *q; |
9c3bf134 | 325 | extern bool unedit(); |
e8a6a730 | 326 | int rval = 0; |
1dbb3fe7 EA |
327 | extern char *index(); |
328 | extern char *makefile(); | |
5e6a7fa9 | 329 | char *editchs; |
4cd62a3c | 330 | extern char *tail(); |
27e36d02 EA |
331 | |
332 | # ifdef DEBUG | |
333 | if (Debug) | |
334 | { | |
1dbb3fe7 EA |
335 | printf("command:\n\t\"%s\"\n", arg0); |
336 | for (np = argv; *np != NULL; np++) | |
337 | printf("\t\"%s\"\n", *np); | |
27e36d02 EA |
338 | } |
339 | # endif | |
2a0234bf | 340 | |
1dbb3fe7 EA |
341 | /* |
342 | ** Copy arguments. | |
e1e64d36 EA |
343 | ** Copy from arg0 & if necessary at most one arg |
344 | ** from argv[0]. | |
1dbb3fe7 EA |
345 | */ |
346 | ||
c9ac6819 | 347 | np = ap = &nav[1]; |
5e6a7fa9 | 348 | editchs = NULL; |
ccd9c6ea | 349 | for (p = arg0, q = buf; *p != '\0' && *p != '/'; ) |
1dbb3fe7 EA |
350 | { |
351 | *np++ = q; | |
352 | while (*p == ' ') | |
353 | p++; | |
5e6a7fa9 | 354 | while (*p != ' ' && *p != '\0' && *p != '/' && *p != ':') |
1dbb3fe7 EA |
355 | *q++ = *p++; |
356 | *q++ = '\0'; | |
5e6a7fa9 EA |
357 | if (*p == ':') |
358 | { | |
359 | editchs = q; | |
ccd9c6ea | 360 | while (*++p != '\0' && *p != '/' && *p != ' ') |
5e6a7fa9 EA |
361 | *q++ = *p; |
362 | *q++ = '\0'; | |
363 | } | |
1dbb3fe7 EA |
364 | } |
365 | *np = NULL; | |
c9ac6819 | 366 | if (*ap == NULL) |
1dbb3fe7 EA |
367 | *np++ = *argv++; |
368 | ||
1cc2dcec EA |
369 | /* |
370 | ** Look up command. | |
c9ac6819 | 371 | ** At this point, *ap is the command name. |
1cc2dcec EA |
372 | */ |
373 | ||
c9ac6819 | 374 | cmd = lookup(*ap); |
1045e3ba | 375 | if (cmd == NULL) |
1cc2dcec | 376 | { |
c9ac6819 | 377 | usrerr("Unknown command \"%s\"", *ap); |
e8a6a730 | 378 | return (EX_USAGE); |
1cc2dcec EA |
379 | } |
380 | ||
1dbb3fe7 EA |
381 | /* |
382 | ** Copy remaining arguments doing editing as appropriate. | |
383 | */ | |
384 | ||
385 | for (; *argv != NULL; argv++) | |
386 | { | |
387 | p = *argv; | |
388 | if (*p == '-') | |
389 | { | |
5e6a7fa9 | 390 | if (p[1] == '\0' || editchs == NULL || index(editchs, p[1]) != NULL) |
1dbb3fe7 EA |
391 | *np++ = p; |
392 | } | |
393 | else | |
394 | { | |
395 | if (!bitset(NO_SDOT, cmd->sccsflags)) | |
396 | p = makefile(p); | |
397 | if (p != NULL) | |
398 | *np++ = p; | |
399 | } | |
400 | } | |
401 | *np = NULL; | |
402 | ||
2a0234bf | 403 | /* |
a97ecd0d | 404 | ** Interpret operation associated with this command. |
2a0234bf EA |
405 | */ |
406 | ||
a97ecd0d EA |
407 | switch (cmd->sccsoper) |
408 | { | |
c9ac6819 EA |
409 | case SHELL: /* call a shell file */ |
410 | *ap = cmd->sccspath; | |
411 | *--ap = "sh"; | |
412 | rval = callprog("/bin/sh", cmd->sccsflags, ap, forkflag); | |
413 | break; | |
414 | ||
a97ecd0d | 415 | case PROG: /* call an sccs prog */ |
c9ac6819 | 416 | rval = callprog(cmd->sccspath, cmd->sccsflags, ap, forkflag); |
e672376b EA |
417 | break; |
418 | ||
419 | case CMACRO: /* command macro */ | |
e1e64d36 | 420 | /* step through & execute each part of the macro */ |
e672376b EA |
421 | for (p = cmd->sccspath; *p != '\0'; p++) |
422 | { | |
1dbb3fe7 EA |
423 | q = p; |
424 | while (*p != '\0' && *p != '/') | |
425 | p++; | |
5e6a7fa9 | 426 | rval = command(&ap[1], *p != '\0', q); |
e8a6a730 EA |
427 | if (rval != 0) |
428 | break; | |
e672376b | 429 | } |
e8a6a730 | 430 | break; |
a97ecd0d | 431 | |
4535945e | 432 | case FIX: /* fix a delta */ |
c9ac6819 | 433 | if (strncmp(ap[1], "-r", 2) != 0) |
4535945e | 434 | { |
d266e8cb | 435 | usrerr("-r flag needed for fix command"); |
e8a6a730 | 436 | rval = EX_USAGE; |
4535945e EA |
437 | break; |
438 | } | |
e1e64d36 EA |
439 | |
440 | /* get the version with all changes */ | |
5e6a7fa9 | 441 | rval = command(&ap[1], TRUE, "get -k"); |
e1e64d36 EA |
442 | |
443 | /* now remove that version from the s-file */ | |
e8a6a730 | 444 | if (rval == 0) |
5e6a7fa9 | 445 | rval = command(&ap[1], TRUE, "rmdel:r"); |
e1e64d36 EA |
446 | |
447 | /* and edit the old version (but don't clobber new vers) */ | |
e8a6a730 | 448 | if (rval == 0) |
5e6a7fa9 | 449 | rval = command(&ap[2], FALSE, "get -e -g"); |
e8a6a730 | 450 | break; |
4535945e | 451 | |
399058e3 | 452 | case CLEAN: |
c03d198b | 453 | rval = clean((int) cmd->sccspath, ap); |
399058e3 EA |
454 | break; |
455 | ||
61886f2a | 456 | case UNEDIT: |
c9ac6819 | 457 | for (argv = np = &ap[1]; *argv != NULL; argv++) |
9c3bf134 | 458 | { |
1dbb3fe7 EA |
459 | if (unedit(*argv)) |
460 | *np++ = *argv; | |
9c3bf134 | 461 | } |
1dbb3fe7 | 462 | *np = NULL; |
e1e64d36 EA |
463 | |
464 | /* get all the files that we unedited successfully */ | |
64dc8483 | 465 | if (np > &ap[1]) |
5e6a7fa9 | 466 | rval = command(&ap[1], FALSE, "get"); |
61886f2a EA |
467 | break; |
468 | ||
629c0863 EA |
469 | case DIFFS: /* diff between s-file & edit file */ |
470 | /* find the end of the flag arguments */ | |
471 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
472 | continue; | |
473 | argv = np; | |
474 | ||
475 | /* for each file, do the diff */ | |
98501620 | 476 | p = argv[1]; |
629c0863 EA |
477 | while (*np != NULL) |
478 | { | |
e1e64d36 | 479 | /* messy, but we need a null terminated argv */ |
629c0863 | 480 | *argv = *np++; |
98501620 | 481 | argv[1] = NULL; |
4cd62a3c | 482 | i = dodiff(ap, tail(*argv)); |
629c0863 EA |
483 | if (rval == 0) |
484 | rval = i; | |
98501620 | 485 | argv[1] = p; |
629c0863 EA |
486 | } |
487 | break; | |
488 | ||
73b61bcf EA |
489 | case DODIFF: /* internal diff call */ |
490 | setuid(getuid()); | |
491 | for (np = ap; *np != NULL; np++) | |
492 | { | |
493 | if ((*np)[0] == '-' && (*np)[1] == 'C') | |
494 | (*np)[1] = 'c'; | |
495 | } | |
496 | ||
497 | /* insert "-" argument */ | |
498 | np[1] = NULL; | |
499 | np[0] = np[-1]; | |
500 | np[-1] = "-"; | |
501 | ||
502 | /* execute the diff program of choice */ | |
503 | # ifndef V6 | |
504 | execvp("diff", ap); | |
505 | # endif | |
506 | execv(cmd->sccspath, argv); | |
507 | syserr("cannot exec %s", cmd->sccspath); | |
508 | exit(EX_OSERR); | |
509 | ||
a97ecd0d | 510 | default: |
d266e8cb | 511 | syserr("oper %d", cmd->sccsoper); |
a97ecd0d EA |
512 | exit(EX_SOFTWARE); |
513 | } | |
e8a6a730 EA |
514 | # ifdef DEBUG |
515 | if (Debug) | |
516 | printf("command: rval=%d\n", rval); | |
517 | # endif | |
518 | return (rval); | |
a97ecd0d | 519 | } |
2d351698 EA |
520 | \f |
521 | /* | |
1045e3ba EA |
522 | ** LOOKUP -- look up an SCCS command name. |
523 | ** | |
524 | ** Parameters: | |
525 | ** name -- the name of the command to look up. | |
526 | ** | |
527 | ** Returns: | |
528 | ** ptr to command descriptor for this command. | |
529 | ** NULL if no such entry. | |
530 | ** | |
531 | ** Side Effects: | |
532 | ** none. | |
533 | */ | |
534 | ||
535 | struct sccsprog * | |
536 | lookup(name) | |
537 | char *name; | |
538 | { | |
539 | register struct sccsprog *cmd; | |
540 | ||
541 | for (cmd = SccsProg; cmd->sccsname != NULL; cmd++) | |
542 | { | |
543 | if (strcmp(cmd->sccsname, name) == 0) | |
544 | return (cmd); | |
545 | } | |
546 | return (NULL); | |
547 | } | |
2d351698 EA |
548 | \f |
549 | /* | |
e8a6a730 EA |
550 | ** CALLPROG -- call a program |
551 | ** | |
1dbb3fe7 | 552 | ** Used to call the SCCS programs. |
e8a6a730 EA |
553 | ** |
554 | ** Parameters: | |
555 | ** progpath -- pathname of the program to call. | |
556 | ** flags -- status flags from the command descriptors. | |
557 | ** argv -- an argument vector to pass to the program. | |
558 | ** forkflag -- if true, fork before calling, else just | |
559 | ** exec. | |
560 | ** | |
561 | ** Returns: | |
562 | ** The exit status of the program. | |
563 | ** Nothing if forkflag == FALSE. | |
564 | ** | |
565 | ** Side Effects: | |
566 | ** Can exit if forkflag == FALSE. | |
567 | */ | |
4535945e | 568 | |
a97ecd0d EA |
569 | callprog(progpath, flags, argv, forkflag) |
570 | char *progpath; | |
571 | short flags; | |
572 | char **argv; | |
573 | bool forkflag; | |
574 | { | |
a97ecd0d | 575 | register int i; |
e672376b | 576 | auto int st; |
1dbb3fe7 EA |
577 | |
578 | # ifdef DEBUG | |
579 | if (Debug) | |
580 | { | |
581 | printf("callprog:\n"); | |
582 | for (i = 0; argv[i] != NULL; i++) | |
583 | printf("\t\"%s\"\n", argv[i]); | |
584 | } | |
585 | # endif | |
a97ecd0d EA |
586 | |
587 | if (*argv == NULL) | |
588 | return (-1); | |
2a0234bf | 589 | |
1cc2dcec | 590 | /* |
4535945e | 591 | ** Fork if appropriate. |
1cc2dcec EA |
592 | */ |
593 | ||
a97ecd0d EA |
594 | if (forkflag) |
595 | { | |
27e36d02 EA |
596 | # ifdef DEBUG |
597 | if (Debug) | |
598 | printf("Forking\n"); | |
599 | # endif | |
a97ecd0d EA |
600 | i = fork(); |
601 | if (i < 0) | |
602 | { | |
d266e8cb | 603 | syserr("cannot fork"); |
a97ecd0d EA |
604 | exit(EX_OSERR); |
605 | } | |
606 | else if (i > 0) | |
e672376b EA |
607 | { |
608 | wait(&st); | |
e8a6a730 EA |
609 | if ((st & 0377) == 0) |
610 | st = (st >> 8) & 0377; | |
629c0863 EA |
611 | if (OutFile >= 0) |
612 | { | |
613 | close(OutFile); | |
614 | OutFile = -1; | |
615 | } | |
e672376b EA |
616 | return (st); |
617 | } | |
a97ecd0d | 618 | } |
629c0863 EA |
619 | else if (OutFile >= 0) |
620 | { | |
621 | syserr("callprog: setting stdout w/o forking"); | |
622 | exit(EX_SOFTWARE); | |
623 | } | |
a97ecd0d | 624 | |
629c0863 | 625 | /* set protection as appropriate */ |
a97ecd0d EA |
626 | if (bitset(REALUSER, flags)) |
627 | setuid(getuid()); | |
a97ecd0d | 628 | |
629c0863 EA |
629 | /* change standard input & output if needed */ |
630 | if (OutFile >= 0) | |
631 | { | |
632 | close(1); | |
633 | dup(OutFile); | |
634 | close(OutFile); | |
635 | } | |
636 | ||
637 | /* call real SCCS program */ | |
4535945e | 638 | execv(progpath, argv); |
d266e8cb | 639 | syserr("cannot execute %s", progpath); |
1cc2dcec | 640 | exit(EX_UNAVAILABLE); |
64dc8483 | 641 | /*NOTREACHED*/ |
1cc2dcec | 642 | } |
2d351698 EA |
643 | \f |
644 | /* | |
e2758dc3 EA |
645 | ** MAKEFILE -- make filename of SCCS file |
646 | ** | |
647 | ** If the name passed is already the name of an SCCS file, | |
648 | ** just return it. Otherwise, munge the name into the name | |
649 | ** of the actual SCCS file. | |
650 | ** | |
651 | ** There are cases when it is not clear what you want to | |
652 | ** do. For example, if SccsPath is an absolute pathname | |
653 | ** and the name given is also an absolute pathname, we go | |
654 | ** for SccsPath (& only use the last component of the name | |
655 | ** passed) -- this is important for security reasons (if | |
656 | ** sccs is being used as a setuid front end), but not | |
657 | ** particularly intuitive. | |
658 | ** | |
659 | ** Parameters: | |
660 | ** name -- the file name to be munged. | |
661 | ** | |
662 | ** Returns: | |
663 | ** The pathname of the sccs file. | |
664 | ** NULL on error. | |
665 | ** | |
666 | ** Side Effects: | |
667 | ** none. | |
668 | */ | |
1cc2dcec EA |
669 | |
670 | char * | |
671 | makefile(name) | |
672 | char *name; | |
673 | { | |
674 | register char *p; | |
1cc2dcec | 675 | char buf[512]; |
1cc2dcec | 676 | extern char *malloc(); |
e2758dc3 | 677 | extern char *rindex(); |
8e7b9e7e EA |
678 | extern bool isdir(); |
679 | register char *q; | |
e2758dc3 EA |
680 | |
681 | p = rindex(name, '/'); | |
682 | if (p == NULL) | |
683 | p = name; | |
684 | else | |
685 | p++; | |
1cc2dcec EA |
686 | |
687 | /* | |
8e7b9e7e | 688 | ** See if the name can be used as-is. |
1cc2dcec EA |
689 | */ |
690 | ||
8e7b9e7e EA |
691 | if (SccsPath[0] != '/' || name[0] == '/' || strncmp(name, "./", 2) == 0) |
692 | { | |
693 | if (strncmp(p, "s.", 2) == 0) | |
694 | return (name); | |
695 | if (isdir(name)) | |
696 | return (name); | |
697 | } | |
e2758dc3 EA |
698 | |
699 | /* | |
8e7b9e7e | 700 | ** Create the actual pathname. |
e2758dc3 EA |
701 | */ |
702 | ||
e1e64d36 | 703 | /* first the directory part */ |
8e7b9e7e | 704 | if (name[0] != '/') |
1cc2dcec | 705 | { |
02ec3e87 | 706 | strcpy(buf, SccsDir); |
e2758dc3 EA |
707 | strcat(buf, "/"); |
708 | } | |
709 | else | |
710 | strcpy(buf, ""); | |
e1e64d36 EA |
711 | |
712 | /* then the head of the pathname */ | |
8e7b9e7e EA |
713 | strncat(buf, name, p - name); |
714 | q = &buf[strlen(buf)]; | |
715 | strcpy(q, p); | |
716 | if (strncmp(p, "s.", 2) != 0 && !isdir(buf)) | |
e2758dc3 | 717 | { |
e1e64d36 | 718 | /* sorry, no; copy the SCCS pathname & the "s." */ |
02ec3e87 EA |
719 | strcpy(q, SccsPath); |
720 | strcat(buf, "/s."); | |
e1e64d36 EA |
721 | |
722 | /* and now the end of the name */ | |
e2758dc3 EA |
723 | strcat(buf, p); |
724 | } | |
1cc2dcec | 725 | |
e1e64d36 | 726 | /* if i haven't changed it, why did I do all this? */ |
02ec3e87 EA |
727 | if (strcmp(buf, name) == 0) |
728 | p = name; | |
729 | ||
730 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
1cc2dcec | 731 | } |
399058e3 | 732 | \f/* |
8e7b9e7e EA |
733 | ** ISDIR -- return true if the argument is a directory. |
734 | ** | |
735 | ** Parameters: | |
736 | ** name -- the pathname of the file to check. | |
737 | ** | |
738 | ** Returns: | |
739 | ** TRUE if 'name' is a directory, FALSE otherwise. | |
740 | ** | |
741 | ** Side Effects: | |
742 | ** none. | |
743 | */ | |
744 | ||
745 | bool | |
746 | isdir(name) | |
747 | char *name; | |
748 | { | |
749 | struct stat stbuf; | |
750 | ||
751 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
752 | } | |
2d351698 EA |
753 | \f |
754 | /* | |
e2758dc3 EA |
755 | ** SAFEPATH -- determine whether a pathname is "safe" |
756 | ** | |
757 | ** "Safe" pathnames only allow you to get deeper into the | |
758 | ** directory structure, i.e., full pathnames and ".." are | |
759 | ** not allowed. | |
760 | ** | |
761 | ** Parameters: | |
762 | ** p -- the name to check. | |
763 | ** | |
764 | ** Returns: | |
765 | ** TRUE -- if the path is safe. | |
766 | ** FALSE -- if the path is not safe. | |
767 | ** | |
768 | ** Side Effects: | |
769 | ** Prints a message if the path is not safe. | |
770 | */ | |
771 | ||
772 | bool | |
773 | safepath(p) | |
774 | register char *p; | |
775 | { | |
776 | extern char *index(); | |
777 | ||
778 | if (*p != '/') | |
779 | { | |
780 | while (strncmp(p, "../", 3) != 0 && strcmp(p, "..") != 0) | |
781 | { | |
782 | p = index(p, '/'); | |
783 | if (p == NULL) | |
784 | return (TRUE); | |
785 | p++; | |
786 | } | |
787 | } | |
788 | ||
789 | printf("You may not use full pathnames or \"..\"\n"); | |
790 | return (FALSE); | |
791 | } | |
2d351698 EA |
792 | \f |
793 | /* | |
399058e3 EA |
794 | ** CLEAN -- clean out recreatable files |
795 | ** | |
796 | ** Any file for which an "s." file exists but no "p." file | |
797 | ** exists in the current directory is purged. | |
798 | ** | |
799 | ** Parameters: | |
c03d198b EA |
800 | ** mode -- tells whether this came from a "clean", "info", or |
801 | ** "check" command. | |
802 | ** argv -- the rest of the argument vector. | |
399058e3 EA |
803 | ** |
804 | ** Returns: | |
805 | ** none. | |
806 | ** | |
807 | ** Side Effects: | |
89819fbe EA |
808 | ** Removes files in the current directory. |
809 | ** Prints information regarding files being edited. | |
810 | ** Exits if a "check" command. | |
399058e3 EA |
811 | */ |
812 | ||
c03d198b | 813 | clean(mode, argv) |
89819fbe | 814 | int mode; |
c03d198b | 815 | char **argv; |
399058e3 EA |
816 | { |
817 | struct direct dir; | |
399058e3 | 818 | char buf[100]; |
db4904e0 EA |
819 | register FILE *dirfd; |
820 | register char *basefile; | |
d7f27f60 | 821 | bool gotedit; |
c03d198b | 822 | bool gotpfent; |
bb9b2f29 | 823 | FILE *pfp; |
c03d198b EA |
824 | bool nobranch = FALSE; |
825 | extern struct pfile *getpfent(); | |
826 | register struct pfile *pf; | |
827 | register char **ap; | |
6aac25be EA |
828 | extern char *username(); |
829 | char *usernm = NULL; | |
c03d198b EA |
830 | |
831 | /* | |
832 | ** Process the argv | |
833 | */ | |
834 | ||
835 | for (ap = argv; *ap != NULL; ap++) | |
836 | { | |
6aac25be EA |
837 | if (**ap == '-') |
838 | { | |
839 | /* we have a flag */ | |
840 | switch ((*ap)[1]) | |
841 | { | |
842 | case 'b': | |
843 | nobranch = TRUE; | |
844 | break; | |
845 | ||
846 | case 'u': | |
847 | if ((*ap)[2] != '\0') | |
848 | usernm = &(*ap)[2]; | |
849 | else if (ap[1] != NULL && ap[1][0] != '-') | |
850 | usernm = *++ap; | |
851 | else | |
852 | usernm = username(); | |
853 | break; | |
854 | } | |
855 | } | |
c03d198b | 856 | } |
399058e3 | 857 | |
e1e64d36 EA |
858 | /* |
859 | ** Find and open the SCCS directory. | |
860 | */ | |
861 | ||
0c925940 EA |
862 | strcpy(buf, SccsDir); |
863 | if (buf[0] != '\0') | |
864 | strcat(buf, "/"); | |
865 | strcat(buf, SccsPath); | |
e1e64d36 | 866 | |
0c925940 | 867 | dirfd = fopen(buf, "r"); |
399058e3 EA |
868 | if (dirfd == NULL) |
869 | { | |
0c925940 | 870 | usrerr("cannot open %s", buf); |
e8a6a730 | 871 | return (EX_NOINPUT); |
399058e3 EA |
872 | } |
873 | ||
874 | /* | |
875 | ** Scan the SCCS directory looking for s. files. | |
e1e64d36 EA |
876 | ** gotedit tells whether we have tried to clean any |
877 | ** files that are being edited. | |
399058e3 EA |
878 | */ |
879 | ||
d7f27f60 | 880 | gotedit = FALSE; |
64dc8483 | 881 | while (fread((char *)&dir, sizeof dir, 1, dirfd) != NULL) |
399058e3 | 882 | { |
b8d1a34d | 883 | if (dir.d_ino == 0 || strncmp(dir.d_name, "s.", 2) != 0) |
399058e3 EA |
884 | continue; |
885 | ||
886 | /* got an s. file -- see if the p. file exists */ | |
0c925940 EA |
887 | strcpy(buf, SccsDir); |
888 | if (buf[0] != '\0') | |
889 | strcat(buf, "/"); | |
890 | strcat(buf, SccsPath); | |
399058e3 | 891 | strcat(buf, "/p."); |
db4904e0 | 892 | basefile = &buf[strlen(buf)]; |
b8d1a34d | 893 | strncpy(basefile, &dir.d_name[2], sizeof dir.d_name - 2); |
bb9b2f29 | 894 | basefile[sizeof dir.d_name - 2] = '\0'; |
c03d198b EA |
895 | |
896 | /* | |
897 | ** open and scan the p-file. | |
898 | ** 'gotpfent' tells if we have found a valid p-file | |
899 | ** entry. | |
900 | */ | |
901 | ||
bb9b2f29 | 902 | pfp = fopen(buf, "r"); |
c03d198b | 903 | gotpfent = FALSE; |
bb9b2f29 | 904 | if (pfp != NULL) |
db4904e0 | 905 | { |
e1e64d36 | 906 | /* the file exists -- report it's contents */ |
c03d198b | 907 | while ((pf = getpfent(pfp)) != NULL) |
bdd50a56 | 908 | { |
c03d198b EA |
909 | if (nobranch && isbranch(pf->p_nsid)) |
910 | continue; | |
6aac25be EA |
911 | if (usernm != NULL && strcmp(usernm, pf->p_user) != 0 && mode != CLEANC) |
912 | continue; | |
c03d198b EA |
913 | gotedit = TRUE; |
914 | gotpfent = TRUE; | |
915 | if (mode == TELLC) | |
916 | { | |
917 | printf("%s\n", basefile); | |
918 | break; | |
919 | } | |
920 | printf("%12s: being edited: %s %s %s %s %s\n", | |
921 | basefile, pf->p_osid, pf->p_nsid, | |
922 | pf->p_user, pf->p_date, pf->p_time); | |
bdd50a56 | 923 | } |
bb9b2f29 | 924 | fclose(pfp); |
db4904e0 | 925 | } |
399058e3 EA |
926 | |
927 | /* the s. file exists and no p. file exists -- unlink the g-file */ | |
9e46d67d | 928 | if (mode == CLEANC && !gotpfent) |
db4904e0 | 929 | { |
b8d1a34d | 930 | strncpy(buf, &dir.d_name[2], sizeof dir.d_name - 2); |
db4904e0 EA |
931 | buf[sizeof dir.d_name - 2] = '\0'; |
932 | unlink(buf); | |
933 | } | |
399058e3 EA |
934 | } |
935 | ||
e1e64d36 | 936 | /* cleanup & report results */ |
399058e3 | 937 | fclose(dirfd); |
89819fbe | 938 | if (!gotedit && mode == INFOC) |
6aac25be EA |
939 | { |
940 | printf("Nothing being edited"); | |
941 | if (nobranch) | |
942 | printf(" (on trunk)"); | |
943 | if (usernm == NULL) | |
944 | printf("\n"); | |
945 | else | |
946 | printf(" by %s\n", usernm); | |
947 | } | |
89819fbe EA |
948 | if (mode == CHECKC) |
949 | exit(gotedit); | |
e8a6a730 | 950 | return (EX_OK); |
399058e3 | 951 | } |
2d351698 | 952 | \f |
c03d198b EA |
953 | /* |
954 | ** ISBRANCH -- is the SID a branch? | |
955 | ** | |
956 | ** Parameters: | |
957 | ** sid -- the sid to check. | |
958 | ** | |
959 | ** Returns: | |
960 | ** TRUE if the sid represents a branch. | |
961 | ** FALSE otherwise. | |
962 | ** | |
963 | ** Side Effects: | |
964 | ** none. | |
965 | */ | |
966 | ||
967 | isbranch(sid) | |
968 | char *sid; | |
969 | { | |
970 | register char *p; | |
971 | int dots; | |
972 | ||
973 | dots = 0; | |
974 | for (p = sid; *p != '\0'; p++) | |
975 | { | |
976 | if (*p == '.') | |
977 | dots++; | |
978 | if (dots > 1) | |
979 | return (TRUE); | |
980 | } | |
981 | return (FALSE); | |
982 | } | |
983 | \f | |
2d351698 | 984 | /* |
61886f2a EA |
985 | ** UNEDIT -- unedit a file |
986 | ** | |
987 | ** Checks to see that the current user is actually editting | |
988 | ** the file and arranges that s/he is not editting it. | |
989 | ** | |
990 | ** Parameters: | |
fdca7108 | 991 | ** fn -- the name of the file to be unedited. |
61886f2a EA |
992 | ** |
993 | ** Returns: | |
9c3bf134 EA |
994 | ** TRUE -- if the file was successfully unedited. |
995 | ** FALSE -- if the file was not unedited for some | |
996 | ** reason. | |
61886f2a EA |
997 | ** |
998 | ** Side Effects: | |
999 | ** fn is removed | |
1000 | ** entries are removed from pfile. | |
1001 | */ | |
1002 | ||
9c3bf134 | 1003 | bool |
61886f2a EA |
1004 | unedit(fn) |
1005 | char *fn; | |
1006 | { | |
1007 | register FILE *pfp; | |
1008 | char *pfn; | |
1009 | static char tfn[] = "/tmp/sccsXXXXX"; | |
1010 | FILE *tfp; | |
61886f2a EA |
1011 | register char *q; |
1012 | bool delete = FALSE; | |
1013 | bool others = FALSE; | |
1014 | char *myname; | |
6aac25be | 1015 | extern char *username(); |
61886f2a | 1016 | struct pfile *pent; |
c03d198b | 1017 | extern struct pfile *getpfent(); |
61886f2a | 1018 | char buf[120]; |
1dbb3fe7 | 1019 | extern char *makefile(); |
61886f2a EA |
1020 | |
1021 | /* make "s." filename & find the trailing component */ | |
1022 | pfn = makefile(fn); | |
e2758dc3 EA |
1023 | if (pfn == NULL) |
1024 | return (FALSE); | |
1025 | q = rindex(pfn, '/'); | |
1026 | if (q == NULL) | |
1027 | q = &pfn[-1]; | |
1028 | if (q[1] != 's' || q[2] != '.') | |
61886f2a | 1029 | { |
d266e8cb | 1030 | usrerr("bad file name \"%s\"", fn); |
9c3bf134 | 1031 | return (FALSE); |
61886f2a EA |
1032 | } |
1033 | ||
e1e64d36 | 1034 | /* turn "s." into "p." & try to open it */ |
61886f2a EA |
1035 | *++q = 'p'; |
1036 | ||
1037 | pfp = fopen(pfn, "r"); | |
1038 | if (pfp == NULL) | |
1039 | { | |
fdca7108 | 1040 | printf("%12s: not being edited\n", fn); |
9c3bf134 | 1041 | return (FALSE); |
61886f2a EA |
1042 | } |
1043 | ||
e1e64d36 | 1044 | /* create temp file for editing p-file */ |
61886f2a EA |
1045 | mktemp(tfn); |
1046 | tfp = fopen(tfn, "w"); | |
1047 | if (tfp == NULL) | |
1048 | { | |
d266e8cb | 1049 | usrerr("cannot create \"%s\"", tfn); |
61886f2a EA |
1050 | exit(EX_OSERR); |
1051 | } | |
1052 | ||
e1e64d36 | 1053 | /* figure out who I am */ |
6aac25be | 1054 | myname = username(); |
e1e64d36 EA |
1055 | |
1056 | /* | |
1057 | ** Copy p-file to temp file, doing deletions as needed. | |
1058 | */ | |
1059 | ||
c03d198b | 1060 | while ((pent = getpfent(pfp)) != NULL) |
61886f2a EA |
1061 | { |
1062 | if (strcmp(pent->p_user, myname) == 0) | |
1063 | { | |
1064 | /* a match */ | |
1065 | delete++; | |
1066 | } | |
1067 | else | |
1068 | { | |
e1e64d36 | 1069 | /* output it again */ |
61886f2a EA |
1070 | fprintf(tfp, "%s %s %s %s %s\n", pent->p_osid, |
1071 | pent->p_nsid, pent->p_user, pent->p_date, | |
1072 | pent->p_time); | |
1073 | others++; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | /* do final cleanup */ | |
1078 | if (others) | |
1079 | { | |
e1e64d36 | 1080 | /* copy it back (perhaps it should be linked?) */ |
61886f2a EA |
1081 | if (freopen(tfn, "r", tfp) == NULL) |
1082 | { | |
d266e8cb | 1083 | syserr("cannot reopen \"%s\"", tfn); |
61886f2a EA |
1084 | exit(EX_OSERR); |
1085 | } | |
1086 | if (freopen(pfn, "w", pfp) == NULL) | |
1087 | { | |
d266e8cb | 1088 | usrerr("cannot create \"%s\"", pfn); |
9c3bf134 | 1089 | return (FALSE); |
61886f2a EA |
1090 | } |
1091 | while (fgets(buf, sizeof buf, tfp) != NULL) | |
1092 | fputs(buf, pfp); | |
1093 | } | |
1094 | else | |
1095 | { | |
e1e64d36 | 1096 | /* it's empty -- remove it */ |
61886f2a EA |
1097 | unlink(pfn); |
1098 | } | |
1099 | fclose(tfp); | |
1100 | fclose(pfp); | |
1101 | unlink(tfn); | |
1102 | ||
e1e64d36 | 1103 | /* actually remove the g-file */ |
61886f2a EA |
1104 | if (delete) |
1105 | { | |
4cd62a3c EA |
1106 | unlink(tail(fn)); |
1107 | printf("%12s: removed\n", tail(fn)); | |
9c3bf134 | 1108 | return (TRUE); |
61886f2a EA |
1109 | } |
1110 | else | |
1111 | { | |
fdca7108 | 1112 | printf("%12s: not being edited by you\n", fn); |
9c3bf134 | 1113 | return (FALSE); |
61886f2a EA |
1114 | } |
1115 | } | |
2d351698 | 1116 | \f |
629c0863 EA |
1117 | /* |
1118 | ** DODIFF -- diff an s-file against a g-file | |
1119 | ** | |
1120 | ** Parameters: | |
1121 | ** getv -- argv for the 'get' command. | |
1122 | ** gfile -- name of the g-file to diff against. | |
1123 | ** | |
1124 | ** Returns: | |
1125 | ** Result of get. | |
1126 | ** | |
1127 | ** Side Effects: | |
1128 | ** none. | |
1129 | */ | |
1130 | ||
1131 | dodiff(getv, gfile) | |
1132 | char **getv; | |
1133 | char *gfile; | |
1134 | { | |
1135 | int pipev[2]; | |
1136 | int rval; | |
1137 | register int i; | |
1138 | register int pid; | |
1139 | auto int st; | |
1140 | extern int errno; | |
1141 | int (*osig)(); | |
1142 | ||
d597ad9e | 1143 | printf("\n------- %s -------\n", gfile); |
73b61bcf | 1144 | fflush(stdout); |
d597ad9e | 1145 | |
e1e64d36 | 1146 | /* create context for diff to run in */ |
629c0863 EA |
1147 | if (pipe(pipev) < 0) |
1148 | { | |
1149 | syserr("dodiff: pipe failed"); | |
1150 | exit(EX_OSERR); | |
1151 | } | |
1152 | if ((pid = fork()) < 0) | |
1153 | { | |
1154 | syserr("dodiff: fork failed"); | |
1155 | exit(EX_OSERR); | |
1156 | } | |
1157 | else if (pid > 0) | |
1158 | { | |
1159 | /* in parent; run get */ | |
1160 | OutFile = pipev[1]; | |
1161 | close(pipev[0]); | |
73b61bcf | 1162 | rval = command(&getv[1], TRUE, "get:rcixt -s -k -p"); |
629c0863 EA |
1163 | osig = signal(SIGINT, SIG_IGN); |
1164 | while (((i = wait(&st)) >= 0 && i != pid) || errno == EINTR) | |
1165 | errno = 0; | |
1166 | signal(SIGINT, osig); | |
1167 | /* ignore result of diff */ | |
1168 | } | |
1169 | else | |
1170 | { | |
1171 | /* in child, run diff */ | |
1172 | if (close(pipev[1]) < 0 || close(0) < 0 || | |
1173 | dup(pipev[0]) != 0 || close(pipev[0]) < 0) | |
1174 | { | |
1175 | syserr("dodiff: magic failed"); | |
1176 | exit(EX_OSERR); | |
1177 | } | |
73b61bcf | 1178 | command(&getv[1], FALSE, "-diff:elsfhbC"); |
629c0863 EA |
1179 | } |
1180 | return (rval); | |
1181 | } | |
1182 | \f | |
4cd62a3c EA |
1183 | /* |
1184 | ** TAIL -- return tail of filename. | |
1185 | ** | |
1186 | ** Parameters: | |
1187 | ** fn -- the filename. | |
1188 | ** | |
1189 | ** Returns: | |
1190 | ** a pointer to the tail of the filename; e.g., given | |
1191 | ** "cmd/ls.c", "ls.c" is returned. | |
1192 | ** | |
1193 | ** Side Effects: | |
1194 | ** none. | |
1195 | */ | |
1196 | ||
1197 | char * | |
1198 | tail(fn) | |
1199 | register char *fn; | |
1200 | { | |
1201 | register char *p; | |
1202 | ||
1203 | for (p = fn; *p != 0; p++) | |
1204 | if (*p == '/' && p[1] != '\0' && p[1] != '/') | |
1205 | fn = &p[1]; | |
1206 | return (fn); | |
1207 | } | |
1208 | \f | |
2d351698 | 1209 | /* |
c03d198b | 1210 | ** GETPFENT -- get an entry from the p-file |
61886f2a EA |
1211 | ** |
1212 | ** Parameters: | |
1213 | ** pfp -- p-file file pointer | |
1214 | ** | |
1215 | ** Returns: | |
1216 | ** pointer to p-file struct for next entry | |
1217 | ** NULL on EOF or error | |
1218 | ** | |
1219 | ** Side Effects: | |
1220 | ** Each call wipes out results of previous call. | |
1221 | */ | |
1222 | ||
1223 | struct pfile * | |
c03d198b | 1224 | getpfent(pfp) |
61886f2a EA |
1225 | FILE *pfp; |
1226 | { | |
1227 | static struct pfile ent; | |
1228 | static char buf[120]; | |
1229 | register char *p; | |
1230 | extern char *nextfield(); | |
1231 | ||
1232 | if (fgets(buf, sizeof buf, pfp) == NULL) | |
1233 | return (NULL); | |
1234 | ||
1235 | ent.p_osid = p = buf; | |
1236 | ent.p_nsid = p = nextfield(p); | |
1237 | ent.p_user = p = nextfield(p); | |
1238 | ent.p_date = p = nextfield(p); | |
1239 | ent.p_time = p = nextfield(p); | |
1240 | if (p == NULL || nextfield(p) != NULL) | |
1241 | return (NULL); | |
1242 | ||
1243 | return (&ent); | |
1244 | } | |
1245 | ||
1246 | ||
1247 | char * | |
1248 | nextfield(p) | |
1249 | register char *p; | |
1250 | { | |
1251 | if (p == NULL || *p == '\0') | |
1252 | return (NULL); | |
1253 | while (*p != ' ' && *p != '\n' && *p != '\0') | |
1254 | p++; | |
1255 | if (*p == '\n' || *p == '\0') | |
1256 | { | |
1257 | *p = '\0'; | |
1258 | return (NULL); | |
1259 | } | |
1260 | *p++ = '\0'; | |
1261 | return (p); | |
1262 | } | |
2d351698 EA |
1263 | \f |
1264 | /* | |
d266e8cb EA |
1265 | ** USRERR -- issue user-level error |
1266 | ** | |
1267 | ** Parameters: | |
1268 | ** f -- format string. | |
1269 | ** p1-p3 -- parameters to a printf. | |
1270 | ** | |
1271 | ** Returns: | |
1272 | ** -1 | |
1273 | ** | |
1274 | ** Side Effects: | |
1275 | ** none. | |
1276 | */ | |
1277 | ||
64dc8483 | 1278 | /*VARARGS1*/ |
d266e8cb EA |
1279 | usrerr(f, p1, p2, p3) |
1280 | char *f; | |
1281 | { | |
1282 | fprintf(stderr, "\n%s: ", MyName); | |
1283 | fprintf(stderr, f, p1, p2, p3); | |
1284 | fprintf(stderr, "\n"); | |
1285 | ||
1286 | return (-1); | |
1287 | } | |
2d351698 EA |
1288 | \f |
1289 | /* | |
d266e8cb EA |
1290 | ** SYSERR -- print system-generated error. |
1291 | ** | |
1292 | ** Parameters: | |
1293 | ** f -- format string to a printf. | |
1294 | ** p1, p2, p3 -- parameters to f. | |
1295 | ** | |
1296 | ** Returns: | |
1297 | ** never. | |
1298 | ** | |
1299 | ** Side Effects: | |
1300 | ** none. | |
1301 | */ | |
1302 | ||
64dc8483 | 1303 | /*VARARGS1*/ |
d266e8cb EA |
1304 | syserr(f, p1, p2, p3) |
1305 | char *f; | |
1306 | { | |
1307 | extern int errno; | |
1308 | ||
1309 | fprintf(stderr, "\n%s SYSERR: ", MyName); | |
1310 | fprintf(stderr, f, p1, p2, p3); | |
1311 | fprintf(stderr, "\n"); | |
1312 | if (errno == 0) | |
1313 | exit(EX_SOFTWARE); | |
1314 | else | |
1315 | { | |
64dc8483 | 1316 | perror(NULL); |
d266e8cb EA |
1317 | exit(EX_OSERR); |
1318 | } | |
1319 | } | |
6aac25be EA |
1320 | \f/* |
1321 | ** USERNAME -- return name of the current user | |
1322 | ** | |
1323 | ** Parameters: | |
1324 | ** none | |
1325 | ** | |
1326 | ** Returns: | |
1327 | ** name of current user | |
1328 | ** | |
1329 | ** Side Effects: | |
1330 | ** none | |
1331 | */ | |
1332 | ||
1333 | char * | |
1334 | username() | |
1335 | { | |
1336 | # ifdef UIDUSER | |
1337 | extern struct passwd *getpwuid(); | |
1338 | register struct passwd *pw; | |
1339 | ||
1340 | pw = getpwuid(getuid()); | |
1341 | if (pw == NULL) | |
1342 | { | |
1343 | syserr("who are you? (uid=%d)", getuid()); | |
1344 | exit(EX_OSERR); | |
1345 | } | |
1346 | return (pw->pw_name); | |
1347 | # else | |
1348 | return (getlogin()); | |
1349 | # endif UIDUSER | |
1350 | } |