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Annotation of src/usr.bin/skeyinfo/skeyinfo.c, Revision 1.10

1.10    ! millert     1: /*     $OpenBSD: skeyinfo.c,v 1.9 2001/06/19 01:49:45 millert Exp $    */
1.1       millert     2:
                      3: /*
1.10    ! millert     4:  * Copyright (c) 1997, 2001, 2002 Todd C. Miller <Todd.Miller@courtesan.com>
1.1       millert     5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
1.5       millert    15:  * 3. The name of the author may not be used to endorse or promote products
1.1       millert    16:  *    derived from this software without specific prior written permission.
                     17:  *
                     18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
                     19:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
                     20:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
                     21:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
                     22:  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
                     23:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
                     24:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
                     25:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
                     26:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
                     27:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     28:  */
                     29:
                     30: #include <err.h>
1.10    ! millert    31: #include <limits.h>
        !            32: #include <paths.h>
1.1       millert    33: #include <pwd.h>
                     34: #include <stdio.h>
1.10    ! millert    35: #include <stdlib.h>
1.1       millert    36: #include <string.h>
                     37: #include <unistd.h>
                     38: #include <skey.h>
                     39:
                     40: extern char *__progname;
                     41:
1.9       millert    42: void usage(void);
1.1       millert    43:
                     44: int
1.9       millert    45: main(int argc, char **argv)
1.1       millert    46: {
                     47:        struct passwd *pw;
1.10    ! millert    48:        struct skey key;
        !            49:        char *name = NULL;
        !            50:        int error, ch, verbose = 0;
        !            51:
        !            52:        while ((ch = getopt(argc, argv, "v")) != -1)
1.1       millert    53:                switch(ch) {
                     54:                case 'v':
                     55:                        verbose = 1;
                     56:                        break;
                     57:                default:
                     58:                        usage();
                     59:        }
                     60:        argc -= optind;
                     61:        argv += optind;
                     62:
                     63:        if (argc == 1)
                     64:                name = argv[0];
                     65:        else if (argc > 1)
                     66:                usage();
                     67:
                     68:        if (name && getuid() != 0)
                     69:                errx(1, "only root may specify an alternate user");
                     70:
                     71:        if (name) {
                     72:                if ((pw = getpwnam(name)) == NULL)
                     73:                        errx(1, "no passwd entry for %s", name);
                     74:        } else {
                     75:                if ((pw = getpwuid(getuid())) == NULL)
                     76:                        errx(1, "no passwd entry for uid %u", getuid());
                     77:        }
                     78:
                     79:        if ((name = strdup(pw->pw_name)) == NULL)
                     80:                err(1, "cannot allocate memory");
                     81:
1.10    ! millert    82:        error = skeylookup(&key, name);
        !            83:        switch (error) {
        !            84:                case 0:         /* Success! */
        !            85:                        if (verbose)
        !            86:                                (void)printf("otp-%s ", skey_get_algorithm());
        !            87:                        (void)printf("%d %s\n", key.n - 1, key.seed);
        !            88:                        break;
        !            89:                case -1:        /* File error */
        !            90:                        err(1, "cannot open %s/%s", _PATH_SKEYDIR, name);
        !            91:                        break;
        !            92:                case 1:         /* Unknown user */
        !            93:                        errx(1, "%s is not listed in %s", name, _PATH_SKEYDIR);
        !            94:                        break;
1.1       millert    95:        }
1.10    ! millert    96:        (void)fclose(key.keyfile);
1.1       millert    97:
1.10    ! millert    98:        exit(error ? 1 : 0);
1.1       millert    99: }
                    100:
                    101: void
1.10    ! millert   102: usage()
1.1       millert   103: {
1.10    ! millert   104:        (void)fprintf(stderr, "usage: %s [-v] [user]\n", __progname);
1.1       millert   105:        exit(1);
                    106: }