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- /* RE_SID: @(%)/tmp_mnt/vol/dosnfs/shades_SCCS/unix/pcnfsd/v2/src/SCCS/s.pcnfsd_cache.c 1.3 93/02/08 10:18:12 SMI */
- /*
- **=====================================================================
- ** Copyright (c) 1986-1993 by Sun Microsystems, Inc.
- ** @(#)pcnfsd_cache.c 1.3 2/8/93
- **=====================================================================
- */
- #include "common.h"
- /*
- **=====================================================================
- ** I N C L U D E F I L E S E C T I O N *
- ** *
- ** If your port requires different include files, add a suitable *
- ** #define in the customization section, and make the inclusion or *
- ** exclusion of the files conditional on this. *
- **=====================================================================
- */
- #include "pcnfsd.h"
-
- #include <stdio.h>
- #include <pwd.h>
- #include <errno.h>
- #include <string.h>
-
- extern char *crypt();
-
-
- /*
- **---------------------------------------------------------------------
- ** Misc. variable definitions
- **---------------------------------------------------------------------
- */
-
- extern int errno;
-
- #ifdef USER_CACHE
- #define CACHE_SIZE 16 /* keep it small, as linear searches are
- * done */
- struct cache
- {
- int cuid;
- int cgid;
- char cpw[32];
- char cuname[10]; /* keep this even for machines
- * with alignment problems */
- }User_cache[CACHE_SIZE];
-
-
-
- /*
- **---------------------------------------------------------------------
- ** User cache support procedures
- **---------------------------------------------------------------------
- */
-
-
- int
- check_cache(name, pw, p_uid, p_gid)
- char *name;
- char *pw;
- int *p_uid;
- int *p_gid;
- {
- int i;
- int c1, c2;
-
- for (i = 0; i < CACHE_SIZE; i++) {
- if (!strcmp(User_cache[i].cuname, name)) {
- c1 = strlen(pw);
- c2 = strlen(User_cache[i].cpw);
- if ((!c1 && !c2) ||
- !(strcmp(User_cache[i].cpw,
- crypt(pw, User_cache[i].cpw)))) {
- *p_uid = User_cache[i].cuid;
- *p_gid = User_cache[i].cgid;
- return (1);
- }
- User_cache[i].cuname[0] = '\0'; /* nuke entry */
- return (0);
- }
- }
- return (0);
- }
-
- void
- add_cache_entry(p)
- struct passwd *p;
- {
- int i;
-
- for (i = CACHE_SIZE - 1; i > 0; i--)
- User_cache[i] = User_cache[i - 1];
- User_cache[0].cuid = p->pw_uid;
- User_cache[0].cgid = p->pw_gid;
- (void)strcpy(User_cache[0].cpw, p->pw_passwd);
- (void)strcpy(User_cache[0].cuname, p->pw_name);
- }
-
-
- #endif /* USER_CACHE */
-
-
-