convert from dbm to ndbm

[unix-history] / usr / src / usr.sbin / sendmail / praliases / praliases.c

/*
* Copyright (c) 1983 Eric P. Allman
* Copyright (c) 1988 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

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

#ifndef lint
static char sccsid[] = "@(#)praliases.c 6.2 (Berkeley) %G%";
#endif /* not lint */

#include <ndbm.h>
#include <sendmail.h>

int
main(argc, argv)
       int argc;
       char **argv;
{
       extern char *optarg;
       extern int optind;
       DBM *dbp;
       datum content, key;
       char *filename;
       int ch;

       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;

       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_nextkey(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);
       }
       exit(EX_OK);
}