Support \u0000 - add size_t string lengths to API, load and dump \u000, etc.

Also:
  Steal strings during parsing for half the mallocs!
  Change all input-caused assertions to errors.  No crashes please, we're programmers.

1 files changed, 11 insertions, 6 deletions

diff --git a/src/memory.c b/src/memory.c
index eb6cec5..e6da96e 100644
--- a/src/memory.c
+++ b/src/memory.c
@@ -12,6 +12,10 @@
 #include "jansson.h"
 #include "jansson_private.h"
 
+/* C89 allows these to be macros */
+#undef malloc
+#undef free
+
 /* memory function pointers */
 static json_malloc_t do_malloc = malloc;
 static json_free_t do_free = free;
@@ -34,18 +38,19 @@ void jsonp_free(void *ptr)
 
 char *jsonp_strdup(const char *str)
 {
-    char *new_str;
-    size_t len;
+    return jsonp_strndup(str, strlen(str));
+}
 
-    len = strlen(str);
-    if(len == (size_t)-1)
-        return NULL;
+char *jsonp_strndup(const char *str, size_t len)
+{
+    char *new_str;
 
     new_str = jsonp_malloc(len + 1);
     if(!new_str)
         return NULL;
 
-    memcpy(new_str, str, len + 1);
+    memcpy(new_str, str, len);
+    new_str[len] = '\0';
     return new_str;
 }