Annotation of src/usr.bin/cvs/cvs.c, Revision 1.120
1.120 ! xsa 1: /* $OpenBSD: cvs.c,v 1.119 2007/04/24 13:36:30 sobrado Exp $ */
1.1 jfb 2: /*
1.113 joris 3: * Copyright (c) 2006, 2007 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:
1.117 otto 28: #include <sys/stat.h>
29:
30: #include <ctype.h>
31: #include <errno.h>
32: #include <pwd.h>
33: #include <stdlib.h>
34: #include <string.h>
1.120 ! xsa 35: #include <time.h>
1.117 otto 36: #include <unistd.h>
1.1 jfb 37:
38: #include "cvs.h"
1.106 joris 39: #include "remote.h"
1.1 jfb 40:
41: extern char *__progname;
42:
43: /* verbosity level: 0 = really quiet, 1 = quiet, 2 = verbose */
1.105 reyk 44: int verbosity = 1;
1.1 jfb 45:
46: /* compression level used with zlib, 0 meaning no compression taking place */
1.98 joris 47: int cvs_compress = 0;
48: int cvs_readrc = 1; /* read .cvsrc on startup */
49: int cvs_trace = 0;
50: int cvs_nolog = 0;
51: int cvs_readonly = 0;
1.111 xsa 52: int cvs_readonlyfs = 0;
1.98 joris 53: int cvs_nocase = 0; /* set to 1 to disable filename case sensitivity */
54: int cvs_noexec = 0; /* set to 1 to disable disk operations (-n option) */
55: int cvs_error = -1; /* set to the correct error code on failure */
56: int cvs_cmdop;
1.99 joris 57: int cvs_umask = CVS_UMASK_DEFAULT;
1.106 joris 58: int cvs_server_active = 0;
1.98 joris 59:
1.99 joris 60: char *cvs_tagname = NULL;
1.98 joris 61: char *cvs_defargs; /* default global arguments from .cvsrc */
62: char *cvs_command; /* name of the command we are running */
63: char *cvs_rootstr;
64: char *cvs_rsh = CVS_RSH_DEFAULT;
65: char *cvs_editor = CVS_EDITOR_DEFAULT;
66: char *cvs_homedir = NULL;
67: char *cvs_msg = NULL;
68: char *cvs_tmpdir = CVS_TMPDIR_DEFAULT;
1.13 krapht 69:
1.98 joris 70: struct cvsroot *current_cvsroot = NULL;
1.27 jfb 71:
1.98 joris 72: int cvs_getopt(int, char **);
1.75 xsa 73: void usage(void);
74: static void cvs_read_rcfile(void);
1.1 jfb 75:
1.98 joris 76: struct cvs_wklhead temp_files;
77:
78: void sighandler(int);
79: volatile sig_atomic_t cvs_quit = 0;
80: volatile sig_atomic_t sig_received = 0;
81:
82: void
83: sighandler(int sig)
84: {
85: sig_received = sig;
86:
87: switch (sig) {
88: case SIGINT:
89: case SIGTERM:
1.107 joris 90: case SIGPIPE:
1.98 joris 91: cvs_quit = 1;
92: break;
93: default:
94: break;
95: }
96: }
97:
98: void
99: cvs_cleanup(void)
100: {
101: cvs_log(LP_TRACE, "cvs_cleanup: removing locks");
102: cvs_worklist_run(&repo_locks, cvs_worklist_unlink);
103:
104: cvs_log(LP_TRACE, "cvs_cleanup: removing temp files");
105: cvs_worklist_run(&temp_files, cvs_worklist_unlink);
1.106 joris 106:
107: if (cvs_server_active) {
108: if (cvs_rmdir(cvs_server_path) == -1)
109: cvs_log(LP_ERR,
110: "warning: failed to remove server directory: %s",
111: cvs_server_path);
112: xfree(cvs_server_path);
113: }
1.98 joris 114: }
115:
1.1 jfb 116: void
117: usage(void)
118: {
119: fprintf(stderr,
1.119 sobrado 120: "usage: %s [-flnQqRrtVvw] [-d root] [-e editor] [-s var=val]\n"
121: " [-T tmpdir] [-z level] command [...]\n", __progname);
1.1 jfb 122: }
123:
124: int
125: main(int argc, char **argv)
126: {
1.17 jfb 127: char *envstr, *cmd_argv[CVS_CMD_MAXARG], **targv;
128: int i, ret, cmd_argc;
1.1 jfb 129: struct cvs_cmd *cmdp;
1.79 xsa 130: struct passwd *pw;
1.80 xsa 131: struct stat st;
1.100 joris 132: char fpath[MAXPATHLEN];
1.106 joris 133: char *root, *rootp;
1.87 joris 134:
135: tzset();
1.1 jfb 136:
1.27 jfb 137: TAILQ_INIT(&cvs_variables);
1.98 joris 138: SLIST_INIT(&repo_locks);
139: SLIST_INIT(&temp_files);
1.1 jfb 140:
141: /* check environment so command-line options override it */
142: if ((envstr = getenv("CVS_RSH")) != NULL)
143: cvs_rsh = envstr;
144:
145: if (((envstr = getenv("CVSEDITOR")) != NULL) ||
146: ((envstr = getenv("VISUAL")) != NULL) ||
147: ((envstr = getenv("EDITOR")) != NULL))
148: cvs_editor = envstr;
1.76 xsa 149:
150: if ((envstr = getenv("CVSREAD")) != NULL)
151: cvs_readonly = 1;
1.1 jfb 152:
1.111 xsa 153: if ((envstr = getenv("CVSREADONLYFS")) != NULL) {
154: cvs_readonlyfs = 1;
155: cvs_nolog = 1;
156: }
157:
1.79 xsa 158: if ((cvs_homedir = getenv("HOME")) == NULL) {
1.89 xsa 159: if ((pw = getpwuid(getuid())) == NULL)
160: fatal("getpwuid failed");
1.79 xsa 161: cvs_homedir = pw->pw_dir;
1.85 reyk 162: }
1.79 xsa 163:
1.80 xsa 164: if ((envstr = getenv("TMPDIR")) != NULL)
165: cvs_tmpdir = envstr;
166:
1.17 jfb 167: ret = cvs_getopt(argc, argv);
168:
169: argc -= ret;
170: argv += ret;
171: if (argc == 0) {
172: usage();
1.98 joris 173: exit(1);
1.17 jfb 174: }
1.80 xsa 175:
1.17 jfb 176: cvs_command = argv[0];
177:
1.80 xsa 178: /*
179: * check the tmp dir, either specified through
180: * the environment variable TMPDIR, or via
181: * the global option -T <dir>
182: */
1.94 xsa 183: if (stat(cvs_tmpdir, &st) == -1)
184: fatal("stat failed on `%s': %s", cvs_tmpdir, strerror(errno));
185: else if (!S_ISDIR(st.st_mode))
186: fatal("`%s' is not valid temporary directory", cvs_tmpdir);
1.80 xsa 187:
1.74 xsa 188: if (cvs_readrc == 1) {
1.17 jfb 189: cvs_read_rcfile();
190:
191: if (cvs_defargs != NULL) {
1.94 xsa 192: if ((targv = cvs_makeargv(cvs_defargs, &i)) == NULL)
193: fatal("failed to load default arguments to %s",
1.17 jfb 194: __progname);
195:
196: cvs_getopt(i, targv);
197: cvs_freeargv(targv, i);
1.88 joris 198: xfree(targv);
1.17 jfb 199: }
200: }
201:
202: /* setup signal handlers */
1.98 joris 203: signal(SIGTERM, sighandler);
204: signal(SIGINT, sighandler);
205: signal(SIGHUP, sighandler);
206: signal(SIGABRT, sighandler);
207: signal(SIGALRM, sighandler);
208: signal(SIGPIPE, sighandler);
1.17 jfb 209:
210: cmdp = cvs_findcmd(cvs_command);
211: if (cmdp == NULL) {
212: fprintf(stderr, "Unknown command: `%s'\n\n", cvs_command);
213: fprintf(stderr, "CVS commands are:\n");
1.67 jfb 214: for (i = 0; cvs_cdt[i] != NULL; i++)
1.17 jfb 215: fprintf(stderr, "\t%-16s%s\n",
1.67 jfb 216: cvs_cdt[i]->cmd_name, cvs_cdt[i]->cmd_descr);
1.98 joris 217: exit(1);
1.17 jfb 218: }
219:
220: cvs_cmdop = cmdp->cmd_op;
221:
222: cmd_argc = 0;
223: memset(cmd_argv, 0, sizeof(cmd_argv));
224:
225: cmd_argv[cmd_argc++] = argv[0];
226: if (cmdp->cmd_defargs != NULL) {
227: /* transform into a new argument vector */
228: ret = cvs_getargv(cmdp->cmd_defargs, cmd_argv + 1,
229: CVS_CMD_MAXARG - 1);
1.94 xsa 230: if (ret < 0)
231: fatal("main: cvs_getargv failed");
232:
1.17 jfb 233: cmd_argc += ret;
234: }
1.98 joris 235:
1.17 jfb 236: for (ret = 1; ret < argc; ret++)
237: cmd_argv[cmd_argc++] = argv[ret];
238:
1.98 joris 239: cvs_file_init();
240:
1.106 joris 241: if (cvs_cmdop == CVS_OP_SERVER) {
242: setvbuf(stdin, NULL, _IOLBF, 0);
243: setvbuf(stdout, NULL, _IOLBF, 0);
244:
245: cvs_server_active = 1;
246: root = cvs_remote_input();
247: if ((rootp = strchr(root, ' ')) == NULL)
248: fatal("bad Root request");
249: cvs_rootstr = xstrdup(rootp + 1);
250: xfree(root);
251: }
252:
1.98 joris 253: if ((current_cvsroot = cvsroot_get(".")) == NULL) {
1.71 xsa 254: cvs_log(LP_ERR,
1.98 joris 255: "No CVSROOT specified! Please use the '-d' option");
1.102 david 256: fatal("or set the CVSROOT environment variable.");
1.17 jfb 257: }
258:
1.106 joris 259: if (current_cvsroot->cr_method != CVS_METHOD_LOCAL) {
260: cmdp->cmd(cmd_argc, cmd_argv);
261: cvs_cleanup();
262: return (0);
263: }
1.100 joris 264:
1.116 xsa 265: (void)xsnprintf(fpath, sizeof(fpath), "%s/%s",
266: current_cvsroot->cr_dir, CVS_PATH_ROOT);
1.110 xsa 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;
1.115 joris 297: const char *errstr;
1.17 jfb 298:
1.111 xsa 299: while ((ret = getopt(argc, argv, "b:d:e:fHlnQqRrs:T:tvVwz:")) != -1) {
1.1 jfb 300: switch (ret) {
1.11 jfb 301: case 'b':
302: /*
303: * We do not care about the bin directory for RCS files
304: * as this program has no dependencies on RCS programs,
305: * so it is only here for backwards compatibility.
306: */
307: cvs_log(LP_NOTICE, "the -b argument is obsolete");
308: break;
1.1 jfb 309: case 'd':
310: cvs_rootstr = optarg;
311: break;
312: case 'e':
313: cvs_editor = optarg;
314: break;
315: case 'f':
1.17 jfb 316: cvs_readrc = 0;
1.1 jfb 317: break;
318: case 'l':
319: cvs_nolog = 1;
320: break;
321: case 'n':
1.65 xsa 322: cvs_noexec = 1;
1.112 xsa 323: cvs_nolog = 1;
1.1 jfb 324: break;
325: case 'Q':
326: verbosity = 0;
327: break;
328: case 'q':
1.105 reyk 329: /*
330: * Be quiet. This is the default in OpenCVS.
331: */
1.111 xsa 332: break;
333: case 'R':
334: cvs_readonlyfs = 1;
335: cvs_nolog = 1;
1.1 jfb 336: break;
337: case 'r':
338: cvs_readonly = 1;
339: break;
1.27 jfb 340: case 's':
341: ep = strchr(optarg, '=');
342: if (ep == NULL) {
343: cvs_log(LP_ERR, "no = in variable assignment");
1.98 joris 344: exit(1);
1.27 jfb 345: }
346: *(ep++) = '\0';
347: if (cvs_var_set(optarg, ep) < 0)
1.98 joris 348: exit(1);
1.80 xsa 349: break;
350: case 'T':
351: cvs_tmpdir = optarg;
1.27 jfb 352: break;
1.1 jfb 353: case 't':
354: cvs_trace = 1;
1.105 reyk 355: break;
356: case 'V':
357: /* don't override -Q */
358: if (verbosity)
359: verbosity = 2;
1.1 jfb 360: break;
361: case 'v':
362: printf("%s\n", CVS_VERSION);
363: exit(0);
364: /* NOTREACHED */
1.83 xsa 365: break;
366: case 'w':
367: cvs_readonly = 0;
1.11 jfb 368: break;
369: case 'x':
370: /*
371: * Kerberos encryption support, kept for compatibility
372: */
1.1 jfb 373: break;
374: case 'z':
1.115 joris 375: cvs_compress = strtonum(optarg, 0, 9, &errstr);
376: if (errstr != NULL)
377: fatal("cvs_compress: %s", errstr);
1.1 jfb 378: break;
379: default:
380: usage();
1.98 joris 381: exit(1);
1.1 jfb 382: }
383: }
384:
1.17 jfb 385: ret = optind;
1.1 jfb 386: optind = 1;
1.17 jfb 387: optreset = 1; /* for next call */
1.12 jfb 388:
1.1 jfb 389: return (ret);
390: }
391:
392: /*
1.17 jfb 393: * cvs_read_rcfile()
1.1 jfb 394: *
395: * Read the CVS `.cvsrc' file in the user's home directory. If the file
396: * exists, it should contain a list of arguments that should always be given
397: * implicitly to the specified commands.
398: */
1.42 joris 399: static void
1.17 jfb 400: cvs_read_rcfile(void)
1.1 jfb 401: {
1.79 xsa 402: char rcpath[MAXPATHLEN], linebuf[128], *lp, *p;
1.116 xsa 403: int i, linenum;
1.17 jfb 404: size_t len;
1.1 jfb 405: struct cvs_cmd *cmdp;
406: FILE *fp;
407:
1.116 xsa 408: linenum = 0;
409:
410: i = snprintf(rcpath, MAXPATHLEN, "%s/%s", cvs_homedir, CVS_PATH_RC);
411: if (i < 0 || i >= MAXPATHLEN) {
1.108 xsa 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: /*
1.118 otto 526: * cvs_var_unset()
1.27 jfb 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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