64 lines
995 B
C
64 lines
995 B
C
#include <sys/types.h>
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#include <pwd.h>
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#include <grp.h>
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#include "uidgid.h"
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static unsigned str_chr(const char *s, int c)
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{
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const char *t = s;
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while (t[0] && t[0] != (char)c)
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t++;
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return t - s;
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}
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unsigned uidgid_get(struct uidgid *u, char *ug, unsigned dogrp) {
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char *g = 0;
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struct passwd *pwd = 0;
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struct group *gr = 0;
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int i, d = 0;
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if (dogrp)
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d = str_chr(ug, ':');
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if (ug[d] == ':') {
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ug[d] = 0;
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g = ug + d + 1;
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}
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pwd = getpwnam(ug);
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if (!pwd) {
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if (g) ug[d] = ':';
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return 0;
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}
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if (g) {
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ug[d] = ':';
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for (i = 0; i < 60; ++i) {
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d = str_chr(g, ':');
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if (g[d] == ':') {
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g[d] = 0;
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gr = getgrnam(g);
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if (!gr) {
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g[d] = ':';
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return 0;
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}
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g[d] = ':';
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u->gid[i] = gr->gr_gid;
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g += d+1;
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}
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else {
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gr = getgrnam(g);
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if (!gr) return 0;
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u->gid[i++] = gr->gr_gid;
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break;
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}
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}
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u->gid[i] = 0;
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u->gids = i;
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}
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if (!g) {
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u->gid[0] = pwd->pw_gid;
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u->gids = 1;
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}
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u->uid = pwd->pw_uid;
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return 1;
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}
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