Merge pull request #706 from dequis/parse-uint

Add parse_uint function to improve integer overflow handling
(cherry picked from commit 31b9d115b0)

src/core/misc.h

@@ -71,6 +71,7 @@ int expand_escape(const char **data);
 int nearest_power(int num);
 
 /* Returns TRUE / FALSE */
+int parse_uint(const char *nptr, char **endptr, int base, guint *number);
 int parse_time_interval(const char *time, int *msecs);
 int parse_size(const char *size, int *bytes);