1 /* $OpenBSD: config.c,v 1.17 2015/11/05 09:48:21 nicm Exp $ */
2 /*
3 * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/types.h>
19 #include <sys/dirent.h>
20 #include <sys/resource.h>
21
22 #include <errno.h>
23 #include <limits.h>
24 #include <stdlib.h>
25 #include <string.h>
26
27 #include "cvs.h"
28 #include "config.h"
29
30 void
cvs_parse_configfile(void)31 cvs_parse_configfile(void)
32 {
33 cvs_log(LP_TRACE, "cvs_parse_configfile()");
34 cvs_read_config(CVS_PATH_CONFIG, config_parse_line);
35 }
36
37 int
config_parse_line(char * line,int lineno)38 config_parse_line(char *line, int lineno)
39 {
40 struct rlimit rl;
41 const char *errstr;
42 char *val, *opt, *ep;
43
44 opt = line;
45 if ((val = strrchr(opt, '=')) == NULL)
46 fatal("cvs_parse_configfile: bad option '%s'", opt);
47
48 *(val++) = '\0';
49
50 if (!strcmp(opt, "tag")) {
51 free(cvs_tagname);
52 cvs_tagname = xstrdup(val);
53 } else if (!strcmp(opt, "umask")) {
54 cvs_umask = strtol(val, &ep, 8);
55
56 if (val == ep || *ep != '\0')
57 fatal("cvs_parse_configfile: umask %s is "
58 "invalid", val);
59 if (cvs_umask < 0 || cvs_umask > 07777)
60 fatal("cvs_parse_configfile: umask %s is "
61 "invalid", val);
62 } else if (!strcmp(opt, "dlimit")) {
63 if (getrlimit(RLIMIT_DATA, &rl) != -1) {
64 rl.rlim_cur = (int)strtonum(val, 0, INT_MAX,
65 &errstr);
66 if (errstr != NULL)
67 fatal("cvs_parse_configfile: %s: %s",
68 val, errstr);
69 rl.rlim_cur = rl.rlim_cur * 1024;
70 (void)setrlimit(RLIMIT_DATA, &rl);
71 }
72 } else {
73 cvs_log(LP_ERR, "ignoring unknown option '%s'", opt);
74 }
75
76 return (0);
77 }
78
79 void
cvs_read_config(char * name,int (* cb)(char *,int))80 cvs_read_config(char *name, int (*cb)(char *, int))
81 {
82 FILE *fp;
83 size_t len;
84 int lineno;
85 char *p, *buf, *lbuf, fpath[PATH_MAX];
86
87 (void)xsnprintf(fpath, sizeof(fpath), "%s/%s",
88 current_cvsroot->cr_dir, name);
89
90 if ((fp = fopen(fpath, "r")) == NULL)
91 return;
92
93 lbuf = NULL;
94 lineno = 0;
95 while ((buf = fgetln(fp, &len)) != NULL) {
96 lineno++;
97 if (buf[len - 1] == '\n') {
98 buf[len - 1] = '\0';
99 } else {
100 lbuf = xmalloc(len + 1);
101 memcpy(lbuf, buf, len);
102 lbuf[len] = '\0';
103 buf = lbuf;
104 }
105
106 p = buf;
107 while (*p == ' ' || *p == '\t')
108 p++;
109
110 if (p[0] == '#' || p[0] == '\0')
111 continue;
112
113 if (cb(p, lineno) < 0)
114 break;
115 }
116
117 free(lbuf);
118 (void)fclose(fp);
119 }
120