diff options
Diffstat (limited to 'usr/src/cmd/rpcsvc/nis/bin/nisshowcache.c')
| -rw-r--r-- | usr/src/cmd/rpcsvc/nis/bin/nisshowcache.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/usr/src/cmd/rpcsvc/nis/bin/nisshowcache.c b/usr/src/cmd/rpcsvc/nis/bin/nisshowcache.c new file mode 100644 index 0000000000..f73c65ef9e --- /dev/null +++ b/usr/src/cmd/rpcsvc/nis/bin/nisshowcache.c @@ -0,0 +1,176 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * nisshowcache.c + * + * Copyright (c) 1988-1995 Sun Microsystems, Inc. + * All Rights Reserved. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * Ported from + * "@(#)dump_cache.c 1.5 90/11/13 Copyr 1988 Sun Micro"; + * + * This program dumps the contents of the NIS+ location cache + * to the standard output. + */ + +#include <stdio.h> +#include <sys/types.h> +#include <rpcsvc/nis.h> +#include <sys/ipc.h> +#include <sys/sem.h> + +#ifndef _sys_sem_h +/* + * This guard is defined only in 4.1 systems and is to + * be included only in 5.0 as it is not defined there. + */ +union semun { + int val; + struct semid_ds *buf; + ushort *array; +}; +#endif /* _sys_sem_h */ + +static void print_semaphores(); +static void __nis_print_sems(int, int); + + +void +usage(char *name) +{ + fprintf(stderr, "usage: %s [-v]\n", name); + exit(1); +} + + +/* dump the context cache on the system */ +void +main(int argc, char *argv[]) +{ + extern int __nis_debuglevel; + int c; + nis_error status; + int new__nis_debug_level = 0; + char *cptr; /* passed to __nis_CacheInit(); we don't use it */ + + __nis_debuglevel = 0; + + /* get command line options */ + while ((c = getopt(argc, argv, "vsd")) != EOF) { + switch (c) { + case 'v': /* verbose mode */ + new__nis_debug_level = 3; + break; + + case 's': + /* + * special format - prints information on one line. + * undocumented feature. see cache_entry.cc + */ + new__nis_debug_level = 6; + break; + + case 'd': + /* + * another undocumented feature. + * prints the semaphores + */ + print_semaphores(); + break; + + case '?': /* error */ + usage(argv[0]); + break; + } + } + if ((status = __nis_CacheInit(&cptr)) != NIS_SUCCESS) { + fprintf(stderr, "NIS+ initialization error: %s\n", + nis_sperrno(status)); + exit((int)status); + } + if (new__nis_debug_level) + __nis_debuglevel = new__nis_debug_level; + else + __nis_debuglevel = 1; + + __nis_CachePrint(); + + exit(0); +} + + +#define NIS_SEM_R_KEY 100302 +#define NIS_SEM_W_KEY 100303 +#define NIS_W_NSEMS 2 +#define NIS_R_NSEMS 1 + +static void +print_semaphores() +{ + int sem_writer, sem_reader; + int semflg = 0; + + sem_reader = semget(NIS_SEM_R_KEY, NIS_R_NSEMS, semflg); + sem_writer = semget(NIS_SEM_W_KEY, NIS_W_NSEMS, semflg); + + if (sem_reader == -1 || sem_writer == -1) { + printf("Could not open semaphores!\n"); + return; + } + __nis_print_sems(sem_writer, sem_reader); +} + + +static void +__nis_print_sems(int sem_writer, int sem_reader) +{ + int i; + ushort w_array[NIS_W_NSEMS]; + ushort r_array[NIS_R_NSEMS]; + union semun semarg; + + + /* cache_manager (writer) semaphores */ + if (sem_writer != -1) { + semarg.array = w_array; + if (semctl(sem_writer, 0, GETALL, semarg) == -1) { + printf("nis_print_sems: semctl GETALL failed"); + return; + } + for (i = 0; i < NIS_W_NSEMS; i++) + printf("sem_writer[%d] = %d\n", i, w_array[i]); + } + /* reader */ + if (sem_reader != -1) { + semarg.array = r_array; + if (semctl(sem_reader, 0, GETALL, semarg) == -1) { + printf("nis_print_sems: semctl GETALL failed"); + return; + } + for (i = 0; i < NIS_R_NSEMS; i++) + printf("sem_reader[%d] = %d\n", i, r_array[i]); + } +} |