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-rw-r--r--libuuid/src/parse.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/libuuid/src/parse.c b/libuuid/src/parse.c
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+/*
+ * parse.c --- UUID parsing
+ *
+ * Copyright (C) 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * 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, and the entire permission notice in its entirety,
+ * including the disclaimer of warranties.
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
+ * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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 NOT ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * %End-Header%
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+
+#include "c.h"
+#include "uuidP.h"
+
+int uuid_parse(const char *in, uuid_t uu)
+{
+ size_t len = strlen(in);
+ if (len != 36)
+ return -1;
+
+ return uuid_parse_range(in, in + len, uu);
+}
+
+int uuid_parse_range(const char *in_start, const char *in_end, uuid_t uu)
+{
+ struct uuid uuid;
+ int i;
+ const char *cp;
+ char buf[3];
+
+ if ((in_end - in_start) != 36)
+ return -1;
+ for (i=0, cp = in_start; i < 36; i++,cp++) {
+ if ((i == 8) || (i == 13) || (i == 18) ||
+ (i == 23)) {
+ if (*cp == '-')
+ continue;
+ return -1;
+ }
+
+ if (!isxdigit(*cp))
+ return -1;
+ }
+ errno = 0;
+ uuid.time_low = strtoul(in_start, NULL, 16);
+
+ if (!errno)
+ uuid.time_mid = strtoul(in_start+9, NULL, 16);
+ if (!errno)
+ uuid.time_hi_and_version = strtoul(in_start+14, NULL, 16);
+ if (!errno)
+ uuid.clock_seq = strtoul(in_start+19, NULL, 16);
+ if (errno)
+ return -1;
+
+ cp = in_start+24;
+ buf[2] = 0;
+ for (i=0; i < 6; i++) {
+ buf[0] = *cp++;
+ buf[1] = *cp++;
+
+ errno = 0;
+ uuid.node[i] = strtoul(buf, NULL, 16);
+ if (errno)
+ return -1;
+ }
+
+ uuid_pack(&uuid, uu);
+ return 0;
+}