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+ /*
+ ** OSSP uuid - Universally Unique Identifier
+ ** Copyright (c) 2004 Ralf S. Engelschall <rse@engelschall.com>
+ ** Copyright (c) 2004 The OSSP Project <http://www.ossp.org/>
+ **
+ ** This file is part of OSSP uuid, a library for the generation
+ ** of UUIDs which can found at http://www.ossp.org/pkg/lib/uuid/
+ **
+ ** Permission to use, copy, modify, and distribute this software for
+ ** any purpose with or without fee is hereby granted, provided that
+ ** the above copyright notice and this permission notice appear in all
+ ** copies.
+ **
+ ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+ ** 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.
+ **
+ ** uuid_cli.c: command line tool
+ */
+
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <stdarg.h>
+ #include <unistd.h>
+ #include <string.h>
+ #include <errno.h>
+
+ #include "uuid.h"
+
+ /* error handler */
+ static void
+ error(int ec, const char *str, ...)
+ {
+ va_list ap;
+
+ va_start(ap, str);
+ fprintf(stderr, "uuid:ERROR: ");
+ vfprintf(stderr, str, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(ec);
+ }
+
+ /* usage handler */
+ static void
+ usage(void)
+ {
+ fprintf(stderr, "usage: uuid [-1] [-n count] [-a] [-d] [-o filename] [UUID]\n");
+ exit(1);
+ }
+
+ /* main procedure */
+ int main(int argc, char *argv[])
+ {
+ uuid_t *uuid;
+ uuid_rc_t rc;
+ FILE *fp;
+ char *p;
+ int ch;
+ int count;
+ int i;
+ int iterate;
+ int ascii;
+ int decode;
+ char *cp;
+ void *vp;
+
+ /* command line parsing */
+ count = -1; /* no count yet */
+ fp = stdout; /* default output file */
+ iterate = 0; /* not one at a time */
+ ascii = 0; /* default is binary output */
+ decode = 0; /* default is to encode */
+ while ((ch = getopt(argc, argv, "1n:ado:")) != -1) {
+ switch (ch) {
+ case '1':
+ iterate = 1;
+ break;
+ case 'n':
+ if (count > 0)
+ usage();
+ count = strtol(optarg, &p, 10);
+ if (*p != 0 || count < 1)
+ usage();
+ break;
+ case 'a':
+ ascii = 1;
+ break;
+ case 'd':
+ decode = 1;
+ break;
+ case 'o':
+ if (fp != stdout)
+ error(1, "multiple output files are not allowed");
+ if ((fp = fopen(optarg, "w")) == NULL)
+ error(1, "fopen: %s", strerror(errno));
+ break;
+ default:
+ usage();
+ }
+ }
+ argv += optind;
+ argc -= optind;
+ if (count == -1)
+ count = 1;
+
+ if (decode) {
+ /* decoding */
+ if (argc != 1)
+ usage();
+ /* FIXME */
+ }
+ else {
+ /* encoding */
+ if (argc < 0 || argc > 1)
+ usage();
+ if ((rc = uuid_create(&uuid)) != UUID_RC_OK)
+ error(1, "uuid_create: %s", uuid_error(rc));
+ if (argc == 1) {
+ /* load initial UUID for setting old generator state */
+ if ((rc = uuid_parse(uuid, argv[0])) != UUID_RC_OK)
+ error(1, "uuid_parse: %s", uuid_error(rc));
+ }
+ for (i = 0; i < count; i++) {
+ if (iterate) {
+ if ((rc = uuid_null(uuid)) != UUID_RC_OK)
+ error(1, "uuid_null: %s", uuid_error(rc));
+ }
+ if ((rc = uuid_generate(uuid)) != UUID_RC_OK)
+ error(1, "uuid_generate: %s", uuid_error(rc));
+ if (ascii) {
+ cp = NULL;
+ if ((rc = uuid_format(uuid, &cp)) != UUID_RC_OK)
+ error(1, "uuid_format: %s", uuid_error(rc));
+ fprintf(fp, "%s\n", cp);
+ free(cp);
+ }
+ else {
+ vp = NULL;
+ if ((rc = uuid_write(uuid, &vp)) != UUID_RC_OK)
+ error(1, "uuid_format: %s", uuid_error(rc));
+ fwrite(vp, UUID_LEN_BIN_CHR, 1, fp);
+ free(vp);
+ }
+ }
+ if ((rc = uuid_destroy(uuid)) != UUID_RC_OK)
+ error(1, "uuid_destroy: %s", uuid_error(rc));
+ }
+
+ /* close output channel */
+ if (fp != stdout)
+ fclose(fp);
+
+ return 0;
+ }
+
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