mirror of
https://codeberg.org/libreboot/lbmk.git
synced 2026-03-25 13:29:03 +02:00
e9a910b33c
i currently use the output of sha512sum in several places of xbmk, which is a bit unreliable in case output changes. other cases where i use util outputs in variables are probably reliable, because i'm using mostly posix utilities in those. to mitigate this, i now import suckless sbase, which has a reasonable sha512sum implementation. *every* binary it builds is being placed in build.list, because i'll probably start using more of them. for example, i may start modifying the "date" implementation, adding the GNU-specific options that i need as mentioned on init.sh i'm importing it in util/ because the sha512sum util is needed for verifying project sources, so if sbase itself is a "project source", that means we can into a chicken and egg bootstrapping problem. this is sbase at revision: 055cc1ae1b3a13c3d8f25af0a4a3316590efcd48 Signed-off-by: Leah Rowe <leah@libreboot.org>
109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <unistd.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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#include "util.h"
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struct var {
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const char *k;
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long v;
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};
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#include "getconf.h"
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void
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usage(void)
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{
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eprintf("usage: %s [-v spec] var [path]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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size_t len;
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long res;
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int i;
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char *str;
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ARGBEGIN {
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case 'v':
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/* ignore */
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EARGF(usage());
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break;
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default:
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usage();
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break;
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} ARGEND
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if (argc == 1) {
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/* sysconf */
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for (i = 0; i < LEN(sysconf_l); i++) {
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if (strcmp(argv[0], sysconf_l[i].k))
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continue;
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errno = 0;
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if ((res = sysconf(sysconf_l[i].v)) < 0) {
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if (errno)
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eprintf("sysconf %ld:", sysconf_l[i].v);
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puts("undefined");
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} else {
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printf("%ld\n", res);
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}
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return fshut(stdout, "<stdout>");
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}
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/* confstr */
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for (i = 0; i < LEN(confstr_l); i++) {
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if (strcmp(argv[0], confstr_l[i].k))
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continue;
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errno = 0;
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if (!(len = confstr(confstr_l[i].v, NULL, 0))) {
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if (errno)
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eprintf("confstr %ld:", confstr_l[i].v);
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puts("undefined");
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} else {
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str = emalloc(len);
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errno = 0;
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if (!confstr(confstr_l[i].v, str, len)) {
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if (errno)
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eprintf("confstr %ld:", confstr_l[i].v);
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puts("undefined");
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} else {
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puts(str);
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}
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free(str);
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}
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return fshut(stdout, "<stdout>");
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}
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/* limits */
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for (i = 0; i < LEN(limits_l); i++) {
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if (strcmp(argv[0], limits_l[i].k))
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continue;
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printf("%ld\n", limits_l[i].v);
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return fshut(stdout, "<stdout>");
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}
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} else if (argc == 2) {
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/* pathconf */
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for (i = 0; i < LEN(pathconf_l); i++) {
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if (strcmp(argv[0], pathconf_l[i].k))
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continue;
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errno = 0;
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if ((res = pathconf(argv[1], pathconf_l[i].v)) < 0) {
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if (errno)
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eprintf("pathconf %ld:", pathconf_l[i].v);
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puts("undefined");
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} else {
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printf("%ld\n", res);
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}
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return fshut(stdout, "<stdout>");
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}
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} else {
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usage();
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}
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eprintf("invalid variable: %s\n", argv[0]);
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return 0;
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}
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