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Merge pull request #664 from stoeckmann/string

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Limit strings at INT_MAX length
This commit is contained in:
Eric Hawicz
2020-08-23 16:43:31 -04:00
committed by GitHub
parent f941931804 e50154f615
commit b4e72c2655
1 changed files with 9 additions and 8 deletions
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7
json_object.c
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@@ -214,7 +214,7 @@ static inline const char *get_string_component(const struct json_object *jso)
static int json_escape_str(struct printbuf *pb, const char *str, size_t len, int flags) static int json_escape_str(struct printbuf *pb, const char *str, size_t len, int flags)
{ {
int pos = 0, start_offset = 0; size_t pos = 0, start_offset = 0;
unsigned char c; unsigned char c;
while (len--) while (len--)
{ {
@@ -1329,9 +1329,10 @@ static int _json_object_set_string_len(json_object *jso, const char *s, size_t l
if (jso == NULL || jso->o_type != json_type_string) if (jso == NULL || jso->o_type != json_type_string)
return 0; return 0;
if (len >= SSIZE_T_MAX - 1) if (len >= INT_MAX - 1)
// jso->len is a signed ssize_t, so it can't hold the // jso->len is a signed ssize_t, so it can't hold the
// full size_t range. // full size_t range. json_object_get_string_len returns
// length as int, cap length at INT_MAX.
return 0; return 0;
dstbuf = get_string_component_mutable(jso); dstbuf = get_string_component_mutable(jso);