MFC HAMMER 2.0:02 - rmdir, stability
[dragonfly.git] / usr.bin / uuidgen / uuidgen.c
blobec5af24770cab7e015d59b19ce12b3282fe075f7
1 /*
2 * Copyright (c) 2002 Marcel Moolenaar
3 * All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * $FreeBSD: src/usr.bin/uuidgen/uuidgen.c,v 1.3 2003/03/15 02:27:10 marcel Exp $
27 * $DragonFly: src/usr.bin/uuidgen/uuidgen.c,v 1.1 2007/06/17 05:03:23 dillon Exp $
30 #include <err.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <unistd.h>
34 #include <uuid.h>
36 static void
37 usage(void)
39 (void)fprintf(stderr, "usage: uuidgen [-1] [-n count] [-o filename]\n");
40 exit(1);
43 int
44 main(int argc, char *argv[])
46 FILE *fp;
47 uuid_t *store, *uuid;
48 char *p;
49 int ch, count, i, iterate;
51 count = -1; /* no count yet */
52 fp = stdout; /* default output file */
53 iterate = 0; /* not one at a time */
54 while ((ch = getopt(argc, argv, "1n:o:")) != -1)
55 switch (ch) {
56 case '1':
57 iterate = 1;
58 break;
59 case 'n':
60 if (count > 0)
61 usage();
62 count = strtol(optarg, &p, 10);
63 if (*p != 0 || count < 1)
64 usage();
65 break;
66 case 'o':
67 if (fp != stdout)
68 errx(1, "multiple output files not allowed");
69 fp = fopen(optarg, "w");
70 if (fp == NULL)
71 err(1, "fopen");
72 break;
73 default:
74 usage();
76 argv += optind;
77 argc -= optind;
79 if (argc)
80 usage();
82 if (count == -1)
83 count = 1;
85 store = (uuid_t*)malloc(sizeof(uuid_t) * count);
86 if (store == NULL)
87 err(1, "malloc()");
89 if (!iterate) {
90 /* Get them all in a single batch */
91 if (uuidgen(store, count) != 0)
92 err(1, "uuidgen()");
93 } else {
94 uuid = store;
95 for (i = 0; i < count; i++) {
96 if (uuidgen(uuid++, 1) != 0)
97 err(1, "uuidgen()");
101 uuid = store;
102 while (count--) {
103 uuid_to_string(uuid++, &p, NULL);
104 fprintf(fp, "%s\n", p);
105 free(p);
108 free(store);
109 if (fp != stdout)
110 fclose(fp);
111 return (0);