diff options
Diffstat (limited to 'usr.sbin/amd/amd/info_ndbm.c')
| -rw-r--r-- | usr.sbin/amd/amd/info_ndbm.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/usr.sbin/amd/amd/info_ndbm.c b/usr.sbin/amd/amd/info_ndbm.c new file mode 100644 index 0000000..d3deaa1 --- /dev/null +++ b/usr.sbin/amd/amd/info_ndbm.c @@ -0,0 +1,123 @@ +/* + * Copyright (c) 1989 Jan-Simon Pendry + * Copyright (c) 1989 Imperial College of Science, Technology & Medicine + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Jan-Simon Pendry at Imperial College, London. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)info_ndbm.c 8.1 (Berkeley) 6/6/93 + * + * $Id: info_ndbm.c,v 5.2.2.1 1992/02/09 15:08:31 jsp beta $ + * + */ + +/* + * Get info from NDBM map + */ + +#include "am.h" + +#ifdef HAS_NDBM_MAPS + +#include <ndbm.h> +#include <fcntl.h> +#include <sys/stat.h> + +static int search_ndbm P((DBM *db, char *key, char **val)); +static int search_ndbm(db, key, val) +DBM *db; +char *key; +char **val; +{ + datum k, v; + k.dptr = key; + k.dsize = strlen(key) + 1; + v = dbm_fetch(db, k); + if (v.dptr) { + *val = strdup(v.dptr); + return 0; + } + return ENOENT; +} + +int ndbm_search P((mnt_map *m, char *map, char *key, char **pval, time_t *tp)); +int ndbm_search(m, map, key, pval, tp) +mnt_map *m; +char *map; +char *key; +char **pval; +time_t *tp; +{ + DBM *db; + + db = dbm_open(map, O_RDONLY, 0); + if (db) { + struct stat stb; + int error; + error = fstat(dbm_pagfno(db), &stb); + if (!error && *tp < stb.st_mtime) { + *tp = stb.st_mtime; + error = -1; + } else { + error = search_ndbm(db, key, pval); + } + (void) dbm_close(db); + return error; + } + + return errno; +} + +int ndbm_init P((char *map, time_t *tp)); +int ndbm_init(map, tp) +char *map; +time_t *tp; +{ + DBM *db; + + db = dbm_open(map, O_RDONLY, 0); + if (db) { + struct stat stb; + + if (fstat(dbm_pagfno(db), &stb) < 0) + *tp = clocktime(); + else + *tp = stb.st_mtime; + dbm_close(db); + return 0; + } + + return errno; +} + +#endif /* HAS_NDBM_MAPS */ |
