Annotation of src/usr.bin/cvs/cvs.c, Revision 1.112
1.112 ! xsa 1: /* $OpenBSD: cvs.c,v 1.111 2006/12/11 07:59:18 xsa Exp $ */
1.1 jfb 2: /*
1.98 joris 3: * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
1.1 jfb 4: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.18 tedu 5: * All rights reserved.
1.1 jfb 6: *
1.18 tedu 7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
1.1 jfb 10: *
1.18 tedu 11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
1.1 jfb 13: * 2. The name of the author may not be used to endorse or promote products
1.18 tedu 14: * derived from this software without specific prior written permission.
1.1 jfb 15: *
16: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
17: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
18: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
19: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
1.18 tedu 25: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 26: */
27:
1.90 xsa 28: #include "includes.h"
1.1 jfb 29:
30: #include "cvs.h"
1.99 joris 31: #include "config.h"
1.1 jfb 32: #include "log.h"
1.8 jfb 33: #include "file.h"
1.106 joris 34: #include "remote.h"
1.1 jfb 35:
36: extern char *__progname;
37:
38: /* verbosity level: 0 = really quiet, 1 = quiet, 2 = verbose */
1.105 reyk 39: int verbosity = 1;
1.1 jfb 40:
41: /* compression level used with zlib, 0 meaning no compression taking place */
1.98 joris 42: int cvs_compress = 0;
43: int cvs_readrc = 1; /* read .cvsrc on startup */
44: int cvs_trace = 0;
45: int cvs_nolog = 0;
46: int cvs_readonly = 0;
1.111 xsa 47: int cvs_readonlyfs = 0;
1.98 joris 48: int cvs_nocase = 0; /* set to 1 to disable filename case sensitivity */
49: int cvs_noexec = 0; /* set to 1 to disable disk operations (-n option) */
50: int cvs_error = -1; /* set to the correct error code on failure */
51: int cvs_cmdop;
1.99 joris 52: int cvs_umask = CVS_UMASK_DEFAULT;
1.106 joris 53: int cvs_server_active = 0;
1.98 joris 54:
1.99 joris 55: char *cvs_tagname = NULL;
1.98 joris 56: char *cvs_defargs; /* default global arguments from .cvsrc */
57: char *cvs_command; /* name of the command we are running */
58: char *cvs_rootstr;
59: char *cvs_rsh = CVS_RSH_DEFAULT;
60: char *cvs_editor = CVS_EDITOR_DEFAULT;
61: char *cvs_homedir = NULL;
62: char *cvs_msg = NULL;
63: char *cvs_tmpdir = CVS_TMPDIR_DEFAULT;
1.13 krapht 64:
1.98 joris 65: struct cvsroot *current_cvsroot = NULL;
1.27 jfb 66:
1.98 joris 67: int cvs_getopt(int, char **);
1.75 xsa 68: void usage(void);
69: static void cvs_read_rcfile(void);
1.1 jfb 70:
1.98 joris 71: struct cvs_wklhead temp_files;
72:
73: void sighandler(int);
74: volatile sig_atomic_t cvs_quit = 0;
75: volatile sig_atomic_t sig_received = 0;
76:
77: void
78: sighandler(int sig)
79: {
80: sig_received = sig;
81:
82: switch (sig) {
83: case SIGINT:
84: case SIGTERM:
1.107 joris 85: case SIGPIPE:
1.98 joris 86: cvs_quit = 1;
87: break;
88: default:
89: break;
90: }
91: }
92:
93: void
94: cvs_cleanup(void)
95: {
96: cvs_log(LP_TRACE, "cvs_cleanup: removing locks");
97: cvs_worklist_run(&repo_locks, cvs_worklist_unlink);
98:
99: cvs_log(LP_TRACE, "cvs_cleanup: removing temp files");
100: cvs_worklist_run(&temp_files, cvs_worklist_unlink);
1.106 joris 101:
102: if (cvs_server_active) {
103: if (cvs_rmdir(cvs_server_path) == -1)
104: cvs_log(LP_ERR,
105: "warning: failed to remove server directory: %s",
106: cvs_server_path);
107: xfree(cvs_server_path);
108: }
1.98 joris 109: }
110:
1.1 jfb 111: void
112: usage(void)
113: {
114: fprintf(stderr,
1.111 xsa 115: "Usage: %s [-flnQqRrtvVw] [-d root] [-e editor] [-s var=val] "
1.81 xsa 116: "[-T tmpdir] [-z level] command [...]\n", __progname);
1.1 jfb 117: }
118:
119: int
120: main(int argc, char **argv)
121: {
1.17 jfb 122: char *envstr, *cmd_argv[CVS_CMD_MAXARG], **targv;
123: int i, ret, cmd_argc;
1.1 jfb 124: struct cvs_cmd *cmdp;
1.79 xsa 125: struct passwd *pw;
1.80 xsa 126: struct stat st;
1.100 joris 127: char fpath[MAXPATHLEN];
1.106 joris 128: char *root, *rootp;
1.87 joris 129:
130: tzset();
1.1 jfb 131:
1.27 jfb 132: TAILQ_INIT(&cvs_variables);
1.98 joris 133: SLIST_INIT(&repo_locks);
134: SLIST_INIT(&temp_files);
1.1 jfb 135:
136: /* check environment so command-line options override it */
137: if ((envstr = getenv("CVS_RSH")) != NULL)
138: cvs_rsh = envstr;
139:
140: if (((envstr = getenv("CVSEDITOR")) != NULL) ||
141: ((envstr = getenv("VISUAL")) != NULL) ||
142: ((envstr = getenv("EDITOR")) != NULL))
143: cvs_editor = envstr;
1.76 xsa 144:
145: if ((envstr = getenv("CVSREAD")) != NULL)
146: cvs_readonly = 1;
1.1 jfb 147:
1.111 xsa 148: if ((envstr = getenv("CVSREADONLYFS")) != NULL) {
149: cvs_readonlyfs = 1;
150: cvs_nolog = 1;
151: }
152:
1.79 xsa 153: if ((cvs_homedir = getenv("HOME")) == NULL) {
1.89 xsa 154: if ((pw = getpwuid(getuid())) == NULL)
155: fatal("getpwuid failed");
1.79 xsa 156: cvs_homedir = pw->pw_dir;
1.85 reyk 157: }
1.79 xsa 158:
1.80 xsa 159: if ((envstr = getenv("TMPDIR")) != NULL)
160: cvs_tmpdir = envstr;
161:
1.17 jfb 162: ret = cvs_getopt(argc, argv);
163:
164: argc -= ret;
165: argv += ret;
166: if (argc == 0) {
167: usage();
1.98 joris 168: exit(1);
1.17 jfb 169: }
1.80 xsa 170:
1.17 jfb 171: cvs_command = argv[0];
172:
1.80 xsa 173: /*
174: * check the tmp dir, either specified through
175: * the environment variable TMPDIR, or via
176: * the global option -T <dir>
177: */
1.94 xsa 178: if (stat(cvs_tmpdir, &st) == -1)
179: fatal("stat failed on `%s': %s", cvs_tmpdir, strerror(errno));
180: else if (!S_ISDIR(st.st_mode))
181: fatal("`%s' is not valid temporary directory", cvs_tmpdir);
1.80 xsa 182:
1.74 xsa 183: if (cvs_readrc == 1) {
1.17 jfb 184: cvs_read_rcfile();
185:
186: if (cvs_defargs != NULL) {
1.94 xsa 187: if ((targv = cvs_makeargv(cvs_defargs, &i)) == NULL)
188: fatal("failed to load default arguments to %s",
1.17 jfb 189: __progname);
190:
191: cvs_getopt(i, targv);
192: cvs_freeargv(targv, i);
1.88 joris 193: xfree(targv);
1.17 jfb 194: }
195: }
196:
197: /* setup signal handlers */
1.98 joris 198: signal(SIGTERM, sighandler);
199: signal(SIGINT, sighandler);
200: signal(SIGHUP, sighandler);
201: signal(SIGABRT, sighandler);
202: signal(SIGALRM, sighandler);
203: signal(SIGPIPE, sighandler);
1.17 jfb 204:
205: cmdp = cvs_findcmd(cvs_command);
206: if (cmdp == NULL) {
207: fprintf(stderr, "Unknown command: `%s'\n\n", cvs_command);
208: fprintf(stderr, "CVS commands are:\n");
1.67 jfb 209: for (i = 0; cvs_cdt[i] != NULL; i++)
1.17 jfb 210: fprintf(stderr, "\t%-16s%s\n",
1.67 jfb 211: cvs_cdt[i]->cmd_name, cvs_cdt[i]->cmd_descr);
1.98 joris 212: exit(1);
1.17 jfb 213: }
214:
215: cvs_cmdop = cmdp->cmd_op;
216:
217: cmd_argc = 0;
218: memset(cmd_argv, 0, sizeof(cmd_argv));
219:
220: cmd_argv[cmd_argc++] = argv[0];
221: if (cmdp->cmd_defargs != NULL) {
222: /* transform into a new argument vector */
223: ret = cvs_getargv(cmdp->cmd_defargs, cmd_argv + 1,
224: CVS_CMD_MAXARG - 1);
1.94 xsa 225: if (ret < 0)
226: fatal("main: cvs_getargv failed");
227:
1.17 jfb 228: cmd_argc += ret;
229: }
1.98 joris 230:
1.17 jfb 231: for (ret = 1; ret < argc; ret++)
232: cmd_argv[cmd_argc++] = argv[ret];
233:
1.98 joris 234: cvs_file_init();
235:
1.106 joris 236: if (cvs_cmdop == CVS_OP_SERVER) {
237: setvbuf(stdin, NULL, _IOLBF, 0);
238: setvbuf(stdout, NULL, _IOLBF, 0);
239:
240: cvs_server_active = 1;
241: root = cvs_remote_input();
242: if ((rootp = strchr(root, ' ')) == NULL)
243: fatal("bad Root request");
244: cvs_rootstr = xstrdup(rootp + 1);
245: xfree(root);
246: }
247:
1.98 joris 248: if ((current_cvsroot = cvsroot_get(".")) == NULL) {
1.71 xsa 249: cvs_log(LP_ERR,
1.98 joris 250: "No CVSROOT specified! Please use the '-d' option");
1.102 david 251: fatal("or set the CVSROOT environment variable.");
1.17 jfb 252: }
253:
1.106 joris 254: if (current_cvsroot->cr_method != CVS_METHOD_LOCAL) {
255: if (cvs_server_active == 1)
256: fatal("remote Root while already running as server?");
257:
258: cvs_client_connect_to_server();
259: cmdp->cmd(cmd_argc, cmd_argv);
260: cvs_cleanup();
261: return (0);
262: }
1.100 joris 263:
1.110 xsa 264: if (cvs_path_cat(current_cvsroot->cr_dir, CVS_PATH_ROOT,
265: fpath, sizeof(fpath)) >= sizeof(fpath))
266: fatal("main: truncation");
267:
1.103 xsa 268: if (stat(fpath, &st) == -1 && cvs_cmdop != CVS_OP_INIT) {
1.100 joris 269: if (errno == ENOENT)
1.104 joris 270: fatal("repository '%s' does not exist",
1.100 joris 271: current_cvsroot->cr_dir);
272: else
273: fatal("%s: %s", current_cvsroot->cr_dir,
274: strerror(errno));
275: } else {
276: if (!S_ISDIR(st.st_mode))
277: fatal("'%s' is not a directory",
278: current_cvsroot->cr_dir);
279: }
1.99 joris 280:
1.103 xsa 281: if (cvs_cmdop != CVS_OP_INIT)
282: cvs_parse_configfile();
1.99 joris 283:
284: umask(cvs_umask);
1.98 joris 285:
286: cmdp->cmd(cmd_argc, cmd_argv);
287: cvs_cleanup();
1.17 jfb 288:
1.98 joris 289: return (0);
1.17 jfb 290: }
291:
292: int
293: cvs_getopt(int argc, char **argv)
294: {
295: int ret;
296: char *ep;
297:
1.111 xsa 298: while ((ret = getopt(argc, argv, "b:d:e:fHlnQqRrs:T:tvVwz:")) != -1) {
1.1 jfb 299: switch (ret) {
1.11 jfb 300: case 'b':
301: /*
302: * We do not care about the bin directory for RCS files
303: * as this program has no dependencies on RCS programs,
304: * so it is only here for backwards compatibility.
305: */
306: cvs_log(LP_NOTICE, "the -b argument is obsolete");
307: break;
1.1 jfb 308: case 'd':
309: cvs_rootstr = optarg;
310: break;
311: case 'e':
312: cvs_editor = optarg;
313: break;
314: case 'f':
1.17 jfb 315: cvs_readrc = 0;
1.1 jfb 316: break;
317: case 'l':
318: cvs_nolog = 1;
319: break;
320: case 'n':
1.65 xsa 321: cvs_noexec = 1;
1.112 ! xsa 322: cvs_nolog = 1;
1.1 jfb 323: break;
324: case 'Q':
325: verbosity = 0;
326: break;
327: case 'q':
1.105 reyk 328: /*
329: * Be quiet. This is the default in OpenCVS.
330: */
1.111 xsa 331: break;
332: case 'R':
333: cvs_readonlyfs = 1;
334: cvs_nolog = 1;
1.1 jfb 335: break;
336: case 'r':
337: cvs_readonly = 1;
338: break;
1.27 jfb 339: case 's':
340: ep = strchr(optarg, '=');
341: if (ep == NULL) {
342: cvs_log(LP_ERR, "no = in variable assignment");
1.98 joris 343: exit(1);
1.27 jfb 344: }
345: *(ep++) = '\0';
346: if (cvs_var_set(optarg, ep) < 0)
1.98 joris 347: exit(1);
1.80 xsa 348: break;
349: case 'T':
350: cvs_tmpdir = optarg;
1.27 jfb 351: break;
1.1 jfb 352: case 't':
353: cvs_trace = 1;
1.105 reyk 354: break;
355: case 'V':
356: /* don't override -Q */
357: if (verbosity)
358: verbosity = 2;
1.1 jfb 359: break;
360: case 'v':
361: printf("%s\n", CVS_VERSION);
362: exit(0);
363: /* NOTREACHED */
1.83 xsa 364: break;
365: case 'w':
366: cvs_readonly = 0;
1.11 jfb 367: break;
368: case 'x':
369: /*
370: * Kerberos encryption support, kept for compatibility
371: */
1.1 jfb 372: break;
373: case 'z':
1.18 tedu 374: cvs_compress = (int)strtol(optarg, &ep, 10);
1.1 jfb 375: if (*ep != '\0')
1.91 xsa 376: fatal("error parsing compression level");
1.1 jfb 377: if (cvs_compress < 0 || cvs_compress > 9)
1.91 xsa 378: fatal("gzip compression level must be "
1.1 jfb 379: "between 0 and 9");
380: break;
381: default:
382: usage();
1.98 joris 383: exit(1);
1.1 jfb 384: }
385: }
386:
1.17 jfb 387: ret = optind;
1.1 jfb 388: optind = 1;
1.17 jfb 389: optreset = 1; /* for next call */
1.12 jfb 390:
1.1 jfb 391: return (ret);
392: }
393:
394: /*
1.17 jfb 395: * cvs_read_rcfile()
1.1 jfb 396: *
397: * Read the CVS `.cvsrc' file in the user's home directory. If the file
398: * exists, it should contain a list of arguments that should always be given
399: * implicitly to the specified commands.
400: */
1.42 joris 401: static void
1.17 jfb 402: cvs_read_rcfile(void)
1.1 jfb 403: {
1.79 xsa 404: char rcpath[MAXPATHLEN], linebuf[128], *lp, *p;
1.93 xsa 405: int linenum = 0;
1.17 jfb 406: size_t len;
1.1 jfb 407: struct cvs_cmd *cmdp;
408: FILE *fp;
409:
1.108 xsa 410: if (cvs_path_cat(cvs_homedir, CVS_PATH_RC, rcpath, sizeof(rcpath))
411: >= sizeof(rcpath)) {
412: cvs_log(LP_ERRNO, "%s", rcpath);
1.54 xsa 413: return;
414: }
1.1 jfb 415:
416: fp = fopen(rcpath, "r");
417: if (fp == NULL) {
418: if (errno != ENOENT)
419: cvs_log(LP_NOTICE, "failed to open `%s': %s", rcpath,
420: strerror(errno));
421: return;
422: }
423:
1.84 xsa 424: while (fgets(linebuf, (int)sizeof(linebuf), fp) != NULL) {
1.23 xsa 425: linenum++;
1.17 jfb 426: if ((len = strlen(linebuf)) == 0)
427: continue;
428: if (linebuf[len - 1] != '\n') {
1.98 joris 429: cvs_log(LP_ERR, "line too long in `%s:%d'", rcpath,
1.23 xsa 430: linenum);
1.17 jfb 431: break;
432: }
433: linebuf[--len] = '\0';
434:
1.70 joris 435: /* skip any whitespaces */
436: p = linebuf;
437: while (*p == ' ')
1.95 deraadt 438: p++;
1.70 joris 439:
440: /* allow comments */
441: if (*p == '#')
442: continue;
443:
444: lp = strchr(p, ' ');
1.1 jfb 445: if (lp == NULL)
1.17 jfb 446: continue; /* ignore lines with no arguments */
447: *lp = '\0';
1.70 joris 448: if (strcmp(p, "cvs") == 0) {
1.17 jfb 449: /*
450: * Global default options. In the case of cvs only,
451: * we keep the 'cvs' string as first argument because
452: * getopt() does not like starting at index 0 for
453: * argument processing.
454: */
455: *lp = ' ';
1.88 joris 456: cvs_defargs = xstrdup(p);
1.15 deraadt 457: } else {
1.17 jfb 458: lp++;
1.70 joris 459: cmdp = cvs_findcmd(p);
1.1 jfb 460: if (cmdp == NULL) {
461: cvs_log(LP_NOTICE,
1.25 xsa 462: "unknown command `%s' in `%s:%d'",
1.70 joris 463: p, rcpath, linenum);
1.1 jfb 464: continue;
465: }
1.17 jfb 466:
1.88 joris 467: cmdp->cmd_defargs = xstrdup(lp);
1.1 jfb 468: }
469: }
1.98 joris 470:
1.1 jfb 471: if (ferror(fp)) {
1.23 xsa 472: cvs_log(LP_NOTICE, "failed to read line from `%s'", rcpath);
1.1 jfb 473: }
474:
475: (void)fclose(fp);
1.27 jfb 476: }
477:
478: /*
479: * cvs_var_set()
480: *
481: * Set the value of the variable <var> to <val>. If there is no such variable,
482: * a new entry is created, otherwise the old value is overwritten.
483: * Returns 0 on success, or -1 on failure.
484: */
485: int
486: cvs_var_set(const char *var, const char *val)
487: {
488: char *valcp;
489: const char *cp;
490: struct cvs_var *vp;
491:
1.97 deraadt 492: if (var == NULL || *var == '\0') {
1.27 jfb 493: cvs_log(LP_ERR, "no variable name");
494: return (-1);
495: }
496:
497: /* sanity check on the name */
498: for (cp = var; *cp != '\0'; cp++)
499: if (!isalnum(*cp) && (*cp != '_')) {
500: cvs_log(LP_ERR,
501: "variable name `%s' contains invalid characters",
502: var);
503: return (-1);
504: }
505:
506: TAILQ_FOREACH(vp, &cvs_variables, cv_link)
507: if (strcmp(vp->cv_name, var) == 0)
508: break;
509:
1.88 joris 510: valcp = xstrdup(val);
1.27 jfb 511: if (vp == NULL) {
1.96 ray 512: vp = xcalloc(1, sizeof(*vp));
1.27 jfb 513:
1.88 joris 514: vp->cv_name = xstrdup(var);
1.27 jfb 515: TAILQ_INSERT_TAIL(&cvs_variables, vp, cv_link);
516:
517: } else /* free the previous value */
1.88 joris 518: xfree(vp->cv_val);
1.27 jfb 519:
520: vp->cv_val = valcp;
521:
522: return (0);
523: }
524:
525: /*
526: * cvs_var_set()
527: *
528: * Remove any entry for the variable <var>.
529: * Returns 0 on success, or -1 on failure.
530: */
531: int
532: cvs_var_unset(const char *var)
533: {
534: struct cvs_var *vp;
535:
536: TAILQ_FOREACH(vp, &cvs_variables, cv_link)
537: if (strcmp(vp->cv_name, var) == 0) {
538: TAILQ_REMOVE(&cvs_variables, vp, cv_link);
1.88 joris 539: xfree(vp->cv_name);
540: xfree(vp->cv_val);
541: xfree(vp);
1.27 jfb 542: return (0);
543: }
544:
545: return (-1);
546: }
547:
548: /*
549: * cvs_var_get()
550: *
551: * Get the value associated with the variable <var>. Returns a pointer to the
552: * value string on success, or NULL if the variable does not exist.
553: */
554:
1.75 xsa 555: const char *
1.27 jfb 556: cvs_var_get(const char *var)
557: {
558: struct cvs_var *vp;
559:
560: TAILQ_FOREACH(vp, &cvs_variables, cv_link)
561: if (strcmp(vp->cv_name, var) == 0)
562: return (vp->cv_val);
563:
564: return (NULL);
1.1 jfb 565: }
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