Annotation of src/usr.bin/cvs/cvs.c, Revision 1.46
1.46 ! joris 1: /* $OpenBSD: cvs.c,v 1.45 2005/03/30 17:43:04 joris Exp $ */
1.1 jfb 2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.18 tedu 4: * All rights reserved.
1.1 jfb 5: *
1.18 tedu 6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
1.1 jfb 9: *
1.18 tedu 10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
1.1 jfb 12: * 2. The name of the author may not be used to endorse or promote products
1.18 tedu 13: * derived from this software without specific prior written permission.
1.1 jfb 14: *
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
18: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
1.18 tedu 24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 25: */
26:
27: #include <sys/types.h>
28: #include <sys/wait.h>
29:
30: #include <err.h>
31: #include <pwd.h>
32: #include <errno.h>
33: #include <stdio.h>
1.27 jfb 34: #include <ctype.h>
1.1 jfb 35: #include <stdlib.h>
36: #include <unistd.h>
37: #include <signal.h>
38: #include <string.h>
39: #include <sysexits.h>
40:
41: #include "cvs.h"
42: #include "log.h"
1.8 jfb 43: #include "file.h"
1.44 jfb 44: #include "strtab.h"
1.1 jfb 45:
46:
47: extern char *__progname;
48:
49:
50: /* verbosity level: 0 = really quiet, 1 = quiet, 2 = verbose */
51: int verbosity = 2;
52:
53: /* compression level used with zlib, 0 meaning no compression taking place */
54: int cvs_compress = 0;
1.17 jfb 55: int cvs_readrc = 1; /* read .cvsrc on startup */
1.1 jfb 56: int cvs_trace = 0;
57: int cvs_nolog = 0;
58: int cvs_readonly = 0;
1.17 jfb 59: int cvs_nocase = 0; /* set to 1 to disable filename case sensitivity */
1.1 jfb 60:
1.17 jfb 61: char *cvs_defargs; /* default global arguments from .cvsrc */
62: char *cvs_command; /* name of the command we are running */
1.6 jfb 63: int cvs_cmdop;
1.1 jfb 64: char *cvs_rootstr;
65: char *cvs_rsh = CVS_RSH_DEFAULT;
66: char *cvs_editor = CVS_EDITOR_DEFAULT;
67:
1.13 krapht 68: char *cvs_msg = NULL;
69:
1.10 jfb 70: /* hierarchy of all the files affected by the command */
71: CVSFILE *cvs_files;
72:
73:
1.27 jfb 74: static TAILQ_HEAD(, cvs_var) cvs_variables;
75:
1.1 jfb 76: /*
77: * Command dispatch table
78: * ----------------------
79: *
80: * The synopsis field should only contain the list of arguments that the
81: * command supports, without the actual command's name.
82: *
1.29 david 83: * Command handlers are expected to return 0 if no error occurred, or one of
1.1 jfb 84: * the values known in sysexits.h in case of an error. In case the error
85: * returned is EX_USAGE, the command's usage string is printed to standard
86: * error before returning.
87: */
1.43 joris 88: struct cvs_cmd cvs_cdt[] = {
1.1 jfb 89: {
1.45 joris 90: CVS_OP_ADD, "add", { "ad", "new" }, &cvs_add,
1.37 jfb 91: "[-k opt] [-m msg] file ...",
92: "k:m:",
1.1 jfb 93: "Add a new file/directory to the repository",
1.45 joris 94: NULL
1.1 jfb 95: },
96: {
1.45 joris 97: CVS_OP_ADMIN, "admin", { "adm", "rcs" }, &cvs_admin,
1.13 krapht 98: "",
1.45 joris 99: "a:A:b::c:e::Ik:l::Lm:n:N:o:qs:t:u::U",
1.1 jfb 100: "Administration front end for rcs",
1.45 joris 101: NULL
1.1 jfb 102: },
103: {
1.45 joris 104: CVS_OP_ANNOTATE, "annotate", { "ann" }, &cvs_annotate,
1.38 jfb 105: "[-flR] [-D date | -r rev] ...",
106: "D:flRr:",
1.1 jfb 107: "Show last revision where each line was modified",
1.45 joris 108: NULL
1.1 jfb 109: },
110: {
1.45 joris 111: CVS_OP_CHECKOUT, "checkout", { "co", "get" }, &cvs_checkout,
1.39 xsa 112: "[-AcflNnPpRs] [-D date | -r rev] [-d dir] [-j rev] [-k mode] "
1.38 jfb 113: "[-t id] module ...",
114: "AcD:d:fj:k:lNnPRr:st:",
1.1 jfb 115: "Checkout sources for editing",
1.45 joris 116: NULL
1.1 jfb 117: },
118: {
1.45 joris 119: CVS_OP_COMMIT, "commit", { "ci", "com" }, &cvs_commit,
1.4 jfb 120: "[-flR] [-F logfile | -m msg] [-r rev] ...",
1.13 krapht 121: "F:flm:Rr:",
1.1 jfb 122: "Check files into the repository",
1.45 joris 123: NULL
1.1 jfb 124: },
125: {
1.45 joris 126: CVS_OP_DIFF, "diff", { "di", "dif" }, &cvs_diff,
1.34 jfb 127: "[-cilNpu] [-D date] [-r rev] ...",
128: "cD:ilNpr:u",
1.1 jfb 129: "Show differences between revisions",
1.45 joris 130: NULL
1.1 jfb 131: },
132: {
1.36 jfb 133: CVS_OP_EDIT, "edit", { }, NULL,
1.1 jfb 134: "",
1.13 krapht 135: "",
1.1 jfb 136: "Get ready to edit a watched file",
1.45 joris 137: NULL
1.1 jfb 138: },
139: {
1.36 jfb 140: CVS_OP_EDITORS, "editors", { }, NULL,
1.1 jfb 141: "",
1.13 krapht 142: "",
1.1 jfb 143: "See who is editing a watched file",
1.45 joris 144: NULL
1.1 jfb 145: },
146: {
1.36 jfb 147: CVS_OP_EXPORT, "export", { "ex", "exp" }, NULL,
1.1 jfb 148: "",
1.13 krapht 149: "",
1.1 jfb 150: "Export sources from CVS, similar to checkout",
1.45 joris 151: NULL
1.1 jfb 152: },
153: {
1.45 joris 154: CVS_OP_HISTORY, "history", { "hi", "his" }, &cvs_history,
1.13 krapht 155: "",
1.45 joris 156: "acelm:oTt:u:wx:z:",
1.1 jfb 157: "Show repository access history",
1.45 joris 158: NULL
1.1 jfb 159: },
160: {
1.45 joris 161: CVS_OP_IMPORT, "import", { "im", "imp" }, &cvs_import,
1.13 krapht 162: "[-d] [-b branch] [-I ign] [-k subst] [-m msg] "
163: "repository vendor-tag release-tags ...",
164: "b:dI:k:m:",
1.1 jfb 165: "Import sources into CVS, using vendor branches",
1.45 joris 166: NULL
1.1 jfb 167: },
168: {
1.45 joris 169: CVS_OP_INIT, "init", { }, &cvs_init,
1.1 jfb 170: "",
1.13 krapht 171: "",
1.1 jfb 172: "Create a CVS repository if it doesn't exist",
1.45 joris 173: NULL
1.1 jfb 174: },
175: #if defined(HAVE_KERBEROS)
176: {
177: "kserver", {}, NULL
178: "",
1.13 krapht 179: "",
1.1 jfb 180: "Start a Kerberos authentication CVS server",
1.45 joris 181: NULL
1.1 jfb 182: },
183: #endif
184: {
1.45 joris 185: CVS_OP_LOG, "log", { "lo" }, &cvs_getlog,
1.38 jfb 186: "[-bhlNRt] [-d dates] [-r revisions] [-s states] [-w logins]",
1.45 joris 187: "d:hlRr:",
1.1 jfb 188: "Print out history information for files",
1.45 joris 189: NULL
1.1 jfb 190: },
191: {
1.6 jfb 192: -1, "login", {}, NULL,
1.1 jfb 193: "",
1.13 krapht 194: "",
1.1 jfb 195: "Prompt for password for authenticating server",
1.45 joris 196: NULL
1.1 jfb 197: },
198: {
1.6 jfb 199: -1, "logout", {}, NULL,
1.1 jfb 200: "",
1.13 krapht 201: "",
1.1 jfb 202: "Removes entry in .cvspass for remote repository",
1.45 joris 203: NULL
1.1 jfb 204: },
205: {
1.36 jfb 206: CVS_OP_RDIFF, "rdiff", {}, NULL,
1.1 jfb 207: "",
1.13 krapht 208: "",
1.1 jfb 209: "Create 'patch' format diffs between releases",
1.45 joris 210: NULL
1.1 jfb 211: },
212: {
1.36 jfb 213: CVS_OP_RELEASE, "release", {}, NULL,
1.38 jfb 214: "[-d]",
215: "d",
1.1 jfb 216: "Indicate that a Module is no longer in use",
1.45 joris 217: NULL
1.1 jfb 218: },
219: {
1.45 joris 220: CVS_OP_REMOVE, "remove", { "rm", "delete" }, &cvs_remove,
1.28 xsa 221: "[-flR] file ...",
1.38 jfb 222: "flR",
1.1 jfb 223: "Remove an entry from the repository",
1.45 joris 224: NULL
1.1 jfb 225: },
226: {
1.36 jfb 227: CVS_OP_RLOG, "rlog", {}, NULL,
1.1 jfb 228: "",
1.13 krapht 229: "",
1.1 jfb 230: "Print out history information for a module",
1.45 joris 231: NULL
1.1 jfb 232: },
233: {
1.36 jfb 234: CVS_OP_RTAG, "rtag", {}, NULL,
1.1 jfb 235: "",
1.13 krapht 236: "",
1.1 jfb 237: "Add a symbolic tag to a module",
1.45 joris 238: NULL
1.1 jfb 239: },
240: {
1.46 ! joris 241: CVS_OP_SERVER, "server", {}, &cmd_server,
1.1 jfb 242: "",
1.13 krapht 243: "",
1.1 jfb 244: "Server mode",
1.45 joris 245: NULL
1.1 jfb 246: },
247: {
1.45 joris 248: CVS_OP_STATUS, "status", { "st", "stat" }, &cvs_status,
1.31 jfb 249: "[-lRv]",
1.38 jfb 250: "lRv",
1.1 jfb 251: "Display status information on checked out files",
1.45 joris 252: NULL
1.1 jfb 253: },
254: {
1.45 joris 255: CVS_OP_TAG, "tag", { "ta", "freeze" }, &cvs_tag,
1.38 jfb 256: "[-bcdFflR] [-D date | -r rev] tagname",
257: "bcD:dFflRr:",
1.1 jfb 258: "Add a symbolic tag to checked out version of files",
1.45 joris 259: NULL
1.1 jfb 260: },
261: {
1.36 jfb 262: CVS_OP_UNEDIT, "unedit", {}, NULL,
1.1 jfb 263: "",
1.13 krapht 264: "",
1.1 jfb 265: "Undo an edit command",
1.45 joris 266: NULL
1.1 jfb 267: },
268: {
1.45 joris 269: CVS_OP_UPDATE, "update", { "up", "upd" }, &cvs_update,
1.39 xsa 270: "[-ACdflPpR] [-D date | -r rev] [-I ign] [-j rev] [-k mode] "
1.38 jfb 271: "[-t id] ...",
1.45 joris 272: "ACD:dflPpQqRr:",
1.1 jfb 273: "Bring work tree in sync with repository",
1.45 joris 274: NULL
1.1 jfb 275: },
276: {
1.45 joris 277: CVS_OP_VERSION, "version", { "ve", "ver" }, &cvs_version,
1.13 krapht 278: "", "",
1.1 jfb 279: "Show current CVS version(s)",
1.45 joris 280: NULL
1.1 jfb 281: },
282: {
1.36 jfb 283: CVS_OP_WATCH, "watch", {}, NULL,
1.1 jfb 284: "",
1.13 krapht 285: "",
1.1 jfb 286: "Set watches",
1.45 joris 287: NULL
1.1 jfb 288: },
289: {
1.36 jfb 290: CVS_OP_WATCHERS, "watchers", {}, NULL,
1.1 jfb 291: "",
1.13 krapht 292: "",
1.1 jfb 293: "See who is watching a file",
1.45 joris 294: NULL
1.1 jfb 295: },
296: };
297:
298: #define CVS_NBCMD (sizeof(cvs_cdt)/sizeof(cvs_cdt[0]))
299:
300:
301:
302: void usage (void);
303: void sigchld_hdlr (int);
1.42 joris 304: static void cvs_read_rcfile (void);
305: static struct cvs_cmd* cvs_findcmd (const char *);
1.17 jfb 306: int cvs_getopt (int, char **);
1.1 jfb 307:
308:
309: /*
310: * usage()
311: *
312: * Display usage information.
313: */
314: void
315: usage(void)
316: {
317: fprintf(stderr,
1.27 jfb 318: "Usage: %s [-flQqtv] [-d root] [-e editor] [-s var=val] [-z level] "
319: "command [...]\n", __progname);
1.1 jfb 320: }
321:
322:
323: int
324: main(int argc, char **argv)
325: {
1.17 jfb 326: char *envstr, *cmd_argv[CVS_CMD_MAXARG], **targv;
327: int i, ret, cmd_argc;
1.1 jfb 328: struct cvs_cmd *cmdp;
329:
1.27 jfb 330: TAILQ_INIT(&cvs_variables);
331:
1.1 jfb 332: if (cvs_log_init(LD_STD, 0) < 0)
333: err(1, "failed to initialize logging");
334:
335: /* by default, be very verbose */
336: (void)cvs_log_filter(LP_FILTER_UNSET, LP_INFO);
337:
338: #ifdef DEBUG
339: (void)cvs_log_filter(LP_FILTER_UNSET, LP_DEBUG);
340: #endif
341:
1.44 jfb 342: cvs_strtab_init();
343:
1.1 jfb 344: /* check environment so command-line options override it */
345: if ((envstr = getenv("CVS_RSH")) != NULL)
346: cvs_rsh = envstr;
347:
348: if (((envstr = getenv("CVSEDITOR")) != NULL) ||
349: ((envstr = getenv("VISUAL")) != NULL) ||
350: ((envstr = getenv("EDITOR")) != NULL))
351: cvs_editor = envstr;
352:
1.17 jfb 353: ret = cvs_getopt(argc, argv);
354:
355: argc -= ret;
356: argv += ret;
357: if (argc == 0) {
358: usage();
359: exit(EX_USAGE);
360: }
361: cvs_command = argv[0];
362:
363: if (cvs_readrc) {
364: cvs_read_rcfile();
365:
366: if (cvs_defargs != NULL) {
367: targv = cvs_makeargv(cvs_defargs, &i);
368: if (targv == NULL) {
369: cvs_log(LP_ERR,
370: "failed to load default arguments to %s",
371: __progname);
372: exit(EX_OSERR);
373: }
374:
375: cvs_getopt(i, targv);
376: cvs_freeargv(targv, i);
377: free(targv);
378: }
379: }
380:
381: /* setup signal handlers */
382: signal(SIGPIPE, SIG_IGN);
383:
1.40 jfb 384: if (cvs_file_init() < 0) {
385: cvs_log(LP_ERR, "failed to initialize file support");
386: exit(1);
387: }
1.17 jfb 388:
389: ret = -1;
390:
391: cmdp = cvs_findcmd(cvs_command);
392: if (cmdp == NULL) {
393: fprintf(stderr, "Unknown command: `%s'\n\n", cvs_command);
394: fprintf(stderr, "CVS commands are:\n");
395: for (i = 0; i < (int)CVS_NBCMD; i++)
396: fprintf(stderr, "\t%-16s%s\n",
397: cvs_cdt[i].cmd_name, cvs_cdt[i].cmd_descr);
398: exit(EX_USAGE);
399: }
400:
1.45 joris 401: if (cmdp->cmd_info == NULL) {
1.17 jfb 402: cvs_log(LP_ERR, "command `%s' not implemented", cvs_command);
403: exit(1);
404: }
405:
406: cvs_cmdop = cmdp->cmd_op;
407:
408: cmd_argc = 0;
409: memset(cmd_argv, 0, sizeof(cmd_argv));
410:
411: cmd_argv[cmd_argc++] = argv[0];
412: if (cmdp->cmd_defargs != NULL) {
413: /* transform into a new argument vector */
414: ret = cvs_getargv(cmdp->cmd_defargs, cmd_argv + 1,
415: CVS_CMD_MAXARG - 1);
416: if (ret < 0) {
417: cvs_log(LP_ERRNO, "failed to generate argument vector "
418: "from default arguments");
419: exit(EX_DATAERR);
420: }
421: cmd_argc += ret;
422: }
423: for (ret = 1; ret < argc; ret++)
424: cmd_argv[cmd_argc++] = argv[ret];
425:
1.45 joris 426: ret = cvs_startcmd(cmdp, cmd_argc, cmd_argv);
1.17 jfb 427: if (ret == EX_USAGE) {
428: fprintf(stderr, "Usage: %s %s %s\n", __progname, cvs_command,
429: cmdp->cmd_synopsis);
430: }
431:
1.45 joris 432: if (cmdp->cmd_info->cmd_cleanup != NULL)
433: cmdp->cmd_info->cmd_cleanup();
1.17 jfb 434: if (cvs_files != NULL)
435: cvs_file_free(cvs_files);
1.33 jfb 436: if (cvs_msg != NULL)
437: free(cvs_msg);
1.44 jfb 438:
439: cvs_strtab_cleanup();
1.17 jfb 440:
441: return (ret);
442: }
443:
444:
445: int
446: cvs_getopt(int argc, char **argv)
447: {
448: int ret;
449: char *ep;
450:
1.27 jfb 451: while ((ret = getopt(argc, argv, "b:d:e:fHlnQqrs:tvz:")) != -1) {
1.1 jfb 452: switch (ret) {
1.11 jfb 453: case 'b':
454: /*
455: * We do not care about the bin directory for RCS files
456: * as this program has no dependencies on RCS programs,
457: * so it is only here for backwards compatibility.
458: */
459: cvs_log(LP_NOTICE, "the -b argument is obsolete");
460: break;
1.1 jfb 461: case 'd':
462: cvs_rootstr = optarg;
463: break;
464: case 'e':
465: cvs_editor = optarg;
466: break;
467: case 'f':
1.17 jfb 468: cvs_readrc = 0;
1.1 jfb 469: break;
470: case 'l':
471: cvs_nolog = 1;
472: break;
473: case 'n':
474: break;
475: case 'Q':
476: verbosity = 0;
477: break;
478: case 'q':
479: /* don't override -Q */
480: if (verbosity > 1)
481: verbosity = 1;
482: break;
483: case 'r':
484: cvs_readonly = 1;
485: break;
1.27 jfb 486: case 's':
487: ep = strchr(optarg, '=');
488: if (ep == NULL) {
489: cvs_log(LP_ERR, "no = in variable assignment");
490: exit(EX_USAGE);
491: }
492: *(ep++) = '\0';
493: if (cvs_var_set(optarg, ep) < 0)
494: exit(EX_USAGE);
495: break;
1.1 jfb 496: case 't':
1.24 jfb 497: (void)cvs_log_filter(LP_FILTER_UNSET, LP_TRACE);
1.1 jfb 498: cvs_trace = 1;
499: break;
500: case 'v':
501: printf("%s\n", CVS_VERSION);
502: exit(0);
503: /* NOTREACHED */
1.11 jfb 504: break;
505: case 'x':
506: /*
507: * Kerberos encryption support, kept for compatibility
508: */
1.1 jfb 509: break;
510: case 'z':
1.18 tedu 511: cvs_compress = (int)strtol(optarg, &ep, 10);
1.1 jfb 512: if (*ep != '\0')
513: errx(1, "error parsing compression level");
514: if (cvs_compress < 0 || cvs_compress > 9)
515: errx(1, "gzip compression level must be "
516: "between 0 and 9");
517: break;
518: default:
519: usage();
520: exit(EX_USAGE);
521: }
522: }
523:
1.17 jfb 524: ret = optind;
1.1 jfb 525: optind = 1;
1.17 jfb 526: optreset = 1; /* for next call */
1.12 jfb 527:
1.1 jfb 528: return (ret);
529: }
530:
531:
532: /*
533: * cvs_findcmd()
534: *
535: * Find the entry in the command dispatch table whose name or one of its
536: * aliases matches <cmd>.
537: * Returns a pointer to the command entry on success, NULL on failure.
538: */
1.42 joris 539: static struct cvs_cmd*
1.1 jfb 540: cvs_findcmd(const char *cmd)
541: {
542: u_int i, j;
543: struct cvs_cmd *cmdp;
544:
545: cmdp = NULL;
546:
547: for (i = 0; (i < CVS_NBCMD) && (cmdp == NULL); i++) {
548: if (strcmp(cmd, cvs_cdt[i].cmd_name) == 0)
549: cmdp = &cvs_cdt[i];
550: else {
551: for (j = 0; j < CVS_CMD_MAXALIAS; j++) {
552: if (strcmp(cmd, cvs_cdt[i].cmd_alias[j]) == 0) {
553: cmdp = &cvs_cdt[i];
554: break;
555: }
556: }
557: }
558: }
559:
560: return (cmdp);
561: }
562:
563:
564: /*
1.17 jfb 565: * cvs_read_rcfile()
1.1 jfb 566: *
567: * Read the CVS `.cvsrc' file in the user's home directory. If the file
568: * exists, it should contain a list of arguments that should always be given
569: * implicitly to the specified commands.
570: */
1.42 joris 571: static void
1.17 jfb 572: cvs_read_rcfile(void)
1.1 jfb 573: {
574: char rcpath[MAXPATHLEN], linebuf[128], *lp;
1.23 xsa 575: int linenum = 0;
1.17 jfb 576: size_t len;
1.1 jfb 577: struct cvs_cmd *cmdp;
578: struct passwd *pw;
579: FILE *fp;
580:
581: pw = getpwuid(getuid());
582: if (pw == NULL) {
583: cvs_log(LP_NOTICE, "failed to get user's password entry");
584: return;
585: }
586:
587: snprintf(rcpath, sizeof(rcpath), "%s/%s", pw->pw_dir, CVS_PATH_RC);
588:
589: fp = fopen(rcpath, "r");
590: if (fp == NULL) {
591: if (errno != ENOENT)
592: cvs_log(LP_NOTICE, "failed to open `%s': %s", rcpath,
593: strerror(errno));
594: return;
595: }
596:
597: while (fgets(linebuf, sizeof(linebuf), fp) != NULL) {
1.23 xsa 598: linenum++;
1.17 jfb 599: if ((len = strlen(linebuf)) == 0)
600: continue;
601: if (linebuf[len - 1] != '\n') {
1.23 xsa 602: cvs_log(LP_WARN, "line too long in `%s:%d'", rcpath,
603: linenum);
1.17 jfb 604: break;
605: }
606: linebuf[--len] = '\0';
607:
1.1 jfb 608: lp = strchr(linebuf, ' ');
609: if (lp == NULL)
1.17 jfb 610: continue; /* ignore lines with no arguments */
611: *lp = '\0';
1.1 jfb 612: if (strcmp(linebuf, "cvs") == 0) {
1.17 jfb 613: /*
614: * Global default options. In the case of cvs only,
615: * we keep the 'cvs' string as first argument because
616: * getopt() does not like starting at index 0 for
617: * argument processing.
618: */
619: *lp = ' ';
620: cvs_defargs = strdup(linebuf);
621: if (cvs_defargs == NULL)
622: cvs_log(LP_ERRNO,
623: "failed to copy global arguments");
1.15 deraadt 624: } else {
1.17 jfb 625: lp++;
1.1 jfb 626: cmdp = cvs_findcmd(linebuf);
627: if (cmdp == NULL) {
628: cvs_log(LP_NOTICE,
1.25 xsa 629: "unknown command `%s' in `%s:%d'",
630: linebuf, rcpath, linenum);
1.1 jfb 631: continue;
632: }
1.17 jfb 633:
634: cmdp->cmd_defargs = strdup(lp);
635: if (cmdp->cmd_defargs == NULL)
636: cvs_log(LP_ERRNO,
637: "failed to copy default arguments for %s",
638: cmdp->cmd_name);
1.1 jfb 639: }
640: }
641: if (ferror(fp)) {
1.23 xsa 642: cvs_log(LP_NOTICE, "failed to read line from `%s'", rcpath);
1.1 jfb 643: }
644:
645: (void)fclose(fp);
1.27 jfb 646: }
647:
648:
649: /*
650: * cvs_var_set()
651: *
652: * Set the value of the variable <var> to <val>. If there is no such variable,
653: * a new entry is created, otherwise the old value is overwritten.
654: * Returns 0 on success, or -1 on failure.
655: */
656: int
657: cvs_var_set(const char *var, const char *val)
658: {
659: char *valcp;
660: const char *cp;
661: struct cvs_var *vp;
662:
663: if ((var == NULL) || (*var == '\0')) {
664: cvs_log(LP_ERR, "no variable name");
665: return (-1);
666: }
667:
668: /* sanity check on the name */
669: for (cp = var; *cp != '\0'; cp++)
670: if (!isalnum(*cp) && (*cp != '_')) {
671: cvs_log(LP_ERR,
672: "variable name `%s' contains invalid characters",
673: var);
674: return (-1);
675: }
676:
677: TAILQ_FOREACH(vp, &cvs_variables, cv_link)
678: if (strcmp(vp->cv_name, var) == 0)
679: break;
680:
681: valcp = strdup(val);
682: if (valcp == NULL) {
683: cvs_log(LP_ERRNO, "failed to allocate variable");
684: return (-1);
685: }
686:
687: if (vp == NULL) {
688: vp = (struct cvs_var *)malloc(sizeof(*vp));
689: if (vp == NULL) {
690: cvs_log(LP_ERRNO, "failed to allocate variable");
691: free(valcp);
692: return (-1);
693: }
694: memset(vp, 0, sizeof(*vp));
695:
696: vp->cv_name = strdup(var);
697: if (vp->cv_name == NULL) {
698: cvs_log(LP_ERRNO, "failed to allocate variable");
699: free(valcp);
700: free(vp);
701: return (-1);
702: }
703:
704: TAILQ_INSERT_TAIL(&cvs_variables, vp, cv_link);
705:
706: } else /* free the previous value */
707: free(vp->cv_val);
708:
709: vp->cv_val = valcp;
710:
711: return (0);
712: }
713:
714:
715: /*
716: * cvs_var_set()
717: *
718: * Remove any entry for the variable <var>.
719: * Returns 0 on success, or -1 on failure.
720: */
721: int
722: cvs_var_unset(const char *var)
723: {
724: struct cvs_var *vp;
725:
726: TAILQ_FOREACH(vp, &cvs_variables, cv_link)
727: if (strcmp(vp->cv_name, var) == 0) {
728: TAILQ_REMOVE(&cvs_variables, vp, cv_link);
729: free(vp->cv_name);
730: free(vp->cv_val);
731: free(vp);
732: return (0);
733: }
734:
735: return (-1);
736:
737: }
738:
739:
740: /*
741: * cvs_var_get()
742: *
743: * Get the value associated with the variable <var>. Returns a pointer to the
744: * value string on success, or NULL if the variable does not exist.
745: */
746:
747: const char*
748: cvs_var_get(const char *var)
749: {
750: struct cvs_var *vp;
751:
752: TAILQ_FOREACH(vp, &cvs_variables, cv_link)
753: if (strcmp(vp->cv_name, var) == 0)
754: return (vp->cv_val);
755:
756: return (NULL);
1.1 jfb 757: }
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