Fix parsing JSON numbers. Should not accept '1.', '-.1' as a number.

Barenboim · Oct 20, 2023 · e9430b1 · e9430b1
1 parent 3f45098
commit e9430b1
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/json_parser.c b/json_parser.c
@@ -260,9 +260,18 @@ static int __parse_json_number(const char *cursor, const char **end,
 	if (*p == '-')
 		p++;
 
+	if (!isdigit(*p))
+		return -2;
+
 	if (*p == '0' && (isdigit(p[1]) || p[1] == 'X' || p[1] == 'x'))
 		return -2;
 
+	while (isdigit(*++p))
+		;
+
+	if (*p == '.' && !isdigit(*(p + 1)))
+		return -2;
+
 	*num = strtod(cursor, (char **)end);
 	if (*end == cursor)
 		return -2;