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29 * $FreeBSD: head/usr.bin/getconf/getconf.c 164945 2006-12-06 12:00:26Z maxim $
32 #include <sys/types.h>
43 static void do_confstr(const char *name, int key);
44 static void do_sysconf(const char *name, int key);
45 static void do_pathconf(const char *name, int key, const char *path);
51 "usage: getconf [-v prog_env] system_var\n"
52 " getconf [-v prog_env] path_var pathname\n");
57 main(int argc, char **argv)
60 const char *name, *vflag, *alt_path;
64 while ((c = getopt(argc, argv, "v:")) != -1) {
75 if ((name = argv[optind]) == NULL)
79 if ((valid = find_progenv(vflag, &alt_path)) == 0)
80 errx(EX_USAGE, "invalid programming environment %s",
82 if (valid > 0 && alt_path != NULL) {
83 if (argv[optind + 1] == NULL)
84 execl(alt_path, "getconf", argv[optind],
87 execl(alt_path, "getconf", argv[optind],
88 argv[optind + 1], NULL);
90 err(EX_OSERR, "execl: %s", alt_path);
93 errx(EX_UNAVAILABLE, "environment %s is not available",
97 if (argv[optind + 1] == NULL) { /* confstr or sysconf */
98 if ((valid = find_limit(name, &limitval)) != 0) {
100 printf("%" PRIdMAX "\n", limitval);
102 printf("undefined\n");
106 if ((valid = find_confstr(name, &key)) != 0) {
108 do_confstr(name, key);
110 printf("undefined\n");
112 valid = find_sysconf(name, &key);
114 do_sysconf(name, key);
115 } else if (valid < 0) {
116 printf("undefined\n");
119 "no such configuration parameter `%s'",
123 valid = find_pathconf(name, &key);
126 do_pathconf(name, key, argv[optind + 1]);
128 printf("undefined\n");
131 "no such path configuration parameter `%s'",
138 do_confstr(const char *name, int key)
145 len = confstr(key, 0, 0);
148 err(EX_OSERR, "confstr: %s", name);
150 printf("undefined\n");
154 confstr(key, buf, len);
161 do_sysconf(const char *name, int key)
166 value = sysconf(key);
167 if (value == -1 && errno != 0)
168 err(EX_OSERR, "sysconf: %s", name);
169 else if (value == -1)
170 printf("undefined\n");
172 printf("%ld\n", value);
176 do_pathconf(const char *name, int key, const char *path)
181 value = pathconf(path, key);
182 if (value == -1 && errno != 0)
183 err(EX_OSERR, "pathconf: %s", name);
184 else if (value == -1)
185 printf("undefined\n");
187 printf("%ld\n", value);