diff options
Diffstat (limited to 'lib/libc/uuid/uuid_to_string.c')
-rw-r--r-- | lib/libc/uuid/uuid_to_string.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/libc/uuid/uuid_to_string.c b/lib/libc/uuid/uuid_to_string.c new file mode 100644 index 0000000..f816391 --- /dev/null +++ b/lib/libc/uuid/uuid_to_string.c @@ -0,0 +1,67 @@ +/*- + * Copyright (c) 2002,2005 Marcel Moolenaar + * Copyright (c) 2002 Hiten Mahesh Pandya + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <stdio.h> +#include <string.h> +#include <uuid.h> + +/* + * uuid_to_string() - Convert a binary UUID into a string representation. + * See also: + * http://www.opengroup.org/onlinepubs/009629399/uuid_to_string.htm + * + * NOTE: The references given above do not have a status code for when + * the string could not be allocated. The status code has been + * taken from the Hewlett-Packard implementation. + */ +void +uuid_to_string(const uuid_t *u, char **s, uint32_t *status) +{ + uuid_t nil; + + if (status != NULL) + *status = uuid_s_ok; + + /* Why allow a NULL-pointer here? */ + if (s == 0) + return; + + if (u == NULL) { + u = &nil; + uuid_create_nil(&nil, NULL); + } + + asprintf(s, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x", + u->time_low, u->time_mid, u->time_hi_and_version, + u->clock_seq_hi_and_reserved, u->clock_seq_low, u->node[0], + u->node[1], u->node[2], u->node[3], u->node[4], u->node[5]); + + if (*s == NULL && status != NULL) + *status = uuid_s_no_memory; +} |