usr.sbin/sendmail/praliases/praliases.c

/*
 * Copyright (c) 1983 Eric P. Allman
 * Copyright (c) 1988, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * 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.
 */

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1988, 1993\n\
        The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)praliases.c 8.2 (Berkeley) 9/22/93";
#endif /* not lint */

#include <ndbm.h>
#include <sendmail.h>
#ifdef NEWDB
#include <db.h>
#endif

int
main(argc, argv)
        int argc;
        char **argv;
{
        extern char *optarg;
        extern int optind;
        DBM *dbp;
        datum content, key;
        char *filename;
        int ch;
#ifdef NEWDB
        const DB *db;
        DBT newdbkey, newdbcontent;
        char buf[MAXNAME];
#endif

        filename = "/etc/aliases";
        while ((ch = getopt(argc, argv, "f:")) != EOF)
                switch((char)ch) {
                case 'f':
                        filename = optarg;
                        break;
                case '?':
                default:
                        (void)fprintf(stderr, "usage: praliases [-f file]\n");
                        exit(EX_USAGE);
                }
        argc -= optind;
        argv += optind;

#ifdef NEWDB
        (void) strcpy(buf, filename);
        (void) strcat(buf, ".db");
        if (db = dbopen(buf, O_RDONLY, 0444 , DB_HASH, NULL)) {
                if (!argc) {
                        while(!db->seq(db, &newdbkey, &newdbcontent, R_NEXT))
                                printf("%s:%s\n", newdbkey.data,
                                                newdbcontent.data);
                }
                else for (; *argv; ++argv) {
                        newdbkey.data = *argv;
                        newdbkey.size = strlen(*argv) + 1;
                        if ( !db->get(db, &newdbkey, &newdbcontent, 0) )
                                printf("%s:%s\n", newdbkey.data,
                                        newdbcontent.data);
                        else
                                printf("%s: No such key\n",
                                        newdbkey.data);
                }
        }
        else {
#endif
                if ((dbp = dbm_open(filename, O_RDONLY, 0)) == NULL) {
                        (void)fprintf(stderr,
                            "praliases: %s: %s\n", filename, strerror(errno));
                        exit(EX_OSFILE);
                }
                if (!argc)
                        for (key = dbm_firstkey(dbp);
                            key.dptr != NULL; key = dbm_nextkey(dbp)) {
                                content = dbm_fetch(dbp, key);
                                (void)printf("%s:%s\n", key.dptr, content.dptr);
                        }
                else for (; *argv; ++argv) {
                        key.dptr = *argv;
                        key.dsize = strlen(*argv) + 1;
                        content = dbm_fetch(dbp, key);
                        if (!content.dptr)
                                (void)printf("%s: No such key\n", key.dptr);
                        else
                                (void)printf("%s:%s\n", key.dptr, content.dptr);
                }
#ifdef NEWDB
        }
#endif
        exit(EX_OK);
}