2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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15 * This product includes software developed by the University of
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33 * @(#)pwcache.c 8.1 (Berkeley) 6/4/93
34 * $DragonFly: src/lib/libc/gen/pwcache.c,v 1.3 2004/06/06 15:05:55 hmp Exp $
37 #include <sys/types.h>
45 #define NCACHE 64 /* power of 2 */
46 #define MASK (NCACHE - 1) /* bits to store with */
49 user_from_uid(uid, nouser)
53 static struct ncache {
56 char name[UT_NAMESIZE + 1];
62 cp = c_uid + (uid & MASK);
63 if (cp->uid != uid || !*cp->name) {
72 (void)strncpy(cp->name, pw->pw_name, UT_NAMESIZE);
73 cp->name[UT_NAMESIZE] = '\0';
76 (void)snprintf(cp->name, UT_NAMESIZE, "%u", uid);
81 return ((nouser && !cp->found) ? NULL : cp->name);
85 group_from_gid(gid, nogroup)
89 static struct ncache {
92 char name[UT_NAMESIZE + 1];
98 cp = c_gid + (gid & MASK);
99 if (cp->gid != gid || !*cp->name) {
108 (void)strncpy(cp->name, gr->gr_name, UT_NAMESIZE);
109 cp->name[UT_NAMESIZE] = '\0';
112 (void)snprintf(cp->name, UT_NAMESIZE, "%u", gid);
117 return ((nogroup && !cp->found) ? NULL : cp->name);