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/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <unistd.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
struct var {
const char *k;
long v;
};
#include "getconf.h"
void
usage(void)
{
eprintf("usage: %s [-v spec] var [path]\n", argv0);
}
int
main(int argc, char *argv[])
{
size_t len;
long res;
int i;
char *str;
ARGBEGIN {
case 'v':
/* ignore */
EARGF(usage());
break;
default:
usage();
break;
} ARGEND
if (argc == 1) {
/* sysconf */
for (i = 0; i < LEN(sysconf_l); i++) {
if (strcmp(argv[0], sysconf_l[i].k))
continue;
errno = 0;
if ((res = sysconf(sysconf_l[i].v)) < 0) {
if (errno)
eprintf("sysconf %ld:", sysconf_l[i].v);
puts("undefined");
} else {
printf("%ld\n", res);
}
return fshut(stdout, "<stdout>");
}
/* confstr */
for (i = 0; i < LEN(confstr_l); i++) {
if (strcmp(argv[0], confstr_l[i].k))
continue;
errno = 0;
if (!(len = confstr(confstr_l[i].v, NULL, 0))) {
if (errno)
eprintf("confstr %ld:", confstr_l[i].v);
puts("undefined");
} else {
str = emalloc(len);
errno = 0;
if (!confstr(confstr_l[i].v, str, len)) {
if (errno)
eprintf("confstr %ld:", confstr_l[i].v);
puts("undefined");
} else {
puts(str);
}
free(str);
}
return fshut(stdout, "<stdout>");
}
/* limits */
for (i = 0; i < LEN(limits_l); i++) {
if (strcmp(argv[0], limits_l[i].k))
continue;
printf("%ld\n", limits_l[i].v);
return fshut(stdout, "<stdout>");
}
} else if (argc == 2) {
/* pathconf */
for (i = 0; i < LEN(pathconf_l); i++) {
if (strcmp(argv[0], pathconf_l[i].k))
continue;
errno = 0;
if ((res = pathconf(argv[1], pathconf_l[i].v)) < 0) {
if (errno)
eprintf("pathconf %ld:", pathconf_l[i].v);
puts("undefined");
} else {
printf("%ld\n", res);
}
return fshut(stdout, "<stdout>");
}
} else {
usage();
}
eprintf("invalid variable: %s\n", argv[0]);
return 0;
}