Add uuid wrapper API call ast_uuid_generate_str().

* Updated test_uuid.c to test the new API call.

* Made system use the new API call to eliminate "10's of lines" where
used.

* Fixed untested ast_strdup() return in stasis_subscribe() by eliminating
the need for it.  struct stasis_subscription now contains the uniqueid[]
string.

* Fixed some issues in exchangecal_write_event():
  Create uid with enough space for a UUID string to avoid a realloc.
  Fix off by one error if the calendar event provided a UUID string.
  There is no need to check for NULL before calling ast_free().


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@384302 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 13 insertions, 2 deletions

diff --git a/include/asterisk/uuid.h b/include/asterisk/uuid.h
index c10268d8c..223ad18c9 100644
--- a/include/asterisk/uuid.h
+++ b/include/asterisk/uuid.h
@@ -24,7 +24,7 @@
 #define _ASTERISK_UUID_H
 
 /* Size of an RFC 4122 UUID string plus terminating null byte */
-#define AST_UUID_STR_LEN 37
+#define AST_UUID_STR_LEN (36 + 1)
 
 struct ast_uuid;
 
@@ -50,11 +50,22 @@ struct ast_uuid *ast_uuid_generate(void);
  * \param uuid The UUID to convert to a string
  * \param[out] buf The buffer where the UUID string will be stored
  * \param size The size of the buffer. Must be at least AST_UUID_STR_LEN.
- * \returns The UUID string (a pointer to buf)
+ * \return The UUID string (a pointer to buf)
  */
 char *ast_uuid_to_str(const struct ast_uuid *uuid, char *buf, size_t size);
 
 /*!
+ * \brief Generate a UUID string.
+ * \since 12.0.0
+ *
+ * \param buf The buffer where the UUID string will be stored
+ * \param size The size of the buffer. Must be at least AST_UUID_STR_LEN.
+ *
+ * \return The UUID string (a pointer to buf)
+ */
+char *ast_uuid_generate_str(char *buf, size_t size);
+
+/*!
  * \brief Convert a string to a UUID
  *
  * This function allocates memory on the heap. The returned