Adding a UUID generator for SOAP message IDs, and indirectly Onvif su…

…pport

src/hal/tools.c

@@ -158,4 +158,18 @@ void unescape_uri(char *uri) {
         src++;
     }
     *dst = '\0';
+}
+
+void uuid_generate(char *uuid) {
+    const char *chars = "0123456789abcdef";
+
+    int i, j = 0;
+    for (i = 0; i < 36; i++) {
+        if (i == 8 || i == 13 || i == 18 || i == 23) {
+            uuid[i] = '-';
+        } else {
+            uuid[i] = chars[rand() % 16];
+        }
+    }
+    uuid[36] = '\0';
 }

src/hal/tools.h

@@ -33,4 +33,6 @@ void reverse(void *arr, size_t width);
 
 char *split(char **input, char *sep);
 
-void unescape_uri(char *uri);
+void unescape_uri(char *uri);
+
+void uuid_generate(char *uuid);