1 files changed, 130 insertions, 0 deletions
diff --git a/crypto/uuid.c b/crypto/uuid.c
new file mode 100644
index 0000000..6e45d71
--- /dev/null
+++ b/crypto/uuid.c
@@ -0,0 +1,130 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>      /* for sprintf */
+
+#include "apr.h"
+#include "apr_uuid.h"
+#include "apr_errno.h"
+#include "apr_lib.h"
+
+
+APU_DECLARE(void) apr_uuid_format(char *buffer, const apr_uuid_t *uuid)
+{
+    const unsigned char *d = uuid->data;
+
+    sprintf(buffer,
+            "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+            d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
+            d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]);
+}
+
+/* convert a pair of hex digits to an integer value [0,255] */
+#if 'A' == 65
+static unsigned char parse_hexpair(const char *s)
+{
+    int result;
+    int temp;
+
+    result = s[0] - '0';
+    if (result > 48)
+	result = (result - 39) << 4;
+    else if (result > 16)
+	result = (result - 7) << 4;
+    else
+	result = result << 4;
+
+    temp = s[1] - '0';
+    if (temp > 48)
+	result |= temp - 39;
+    else if (temp > 16)
+	result |= temp - 7;
+    else
+	result |= temp;
+
+    return (unsigned char)result;
+}
+#else
+static unsigned char parse_hexpair(const char *s)
+{
+    int result;
+
+    if (isdigit(*s)) {
+        result = (*s - '0') << 4;
+    }
+    else {
+        if (isupper(*s)) {
+            result = (*s - 'A' + 10) << 4;
+        }
+        else {
+            result = (*s - 'a' + 10) << 4;
+        }
+    }
+
+    ++s;
+    if (isdigit(*s)) {
+        result |= (*s - '0');
+    }
+    else {
+        if (isupper(*s)) {
+            result |= (*s - 'A' + 10);
+        }
+        else {
+            result |= (*s - 'a' + 10);
+        }
+    }
+
+    return (unsigned char)result;
+}
+#endif
+
+APU_DECLARE(apr_status_t) apr_uuid_parse(apr_uuid_t *uuid,
+                                         const char *uuid_str)
+{
+    int i;
+    unsigned char *d = uuid->data;
+
+    for (i = 0; i < 36; ++i) {
+	char c = uuid_str[i];
+	if (!apr_isxdigit(c) &&
+	    !(c == '-' && (i == 8 || i == 13 || i == 18 || i == 23)))
+            /* ### need a better value */
+	    return APR_BADARG;
+    }
+    if (uuid_str[36] != '\0') {
+        /* ### need a better value */
+	return APR_BADARG;
+    }
+
+    d[0] = parse_hexpair(&uuid_str[0]);
+    d[1] = parse_hexpair(&uuid_str[2]);
+    d[2] = parse_hexpair(&uuid_str[4]);
+    d[3] = parse_hexpair(&uuid_str[6]);
+
+    d[4] = parse_hexpair(&uuid_str[9]);
+    d[5] = parse_hexpair(&uuid_str[11]);
+
+    d[6] = parse_hexpair(&uuid_str[14]);
+    d[7] = parse_hexpair(&uuid_str[16]);
+
+    d[8] = parse_hexpair(&uuid_str[19]);
+    d[9] = parse_hexpair(&uuid_str[21]);
+
+    for (i = 6; i--;)
+	d[10 + i] = parse_hexpair(&uuid_str[i*2+24]);
+
+    return APR_SUCCESS;
+}