nostrdb

commit 261a210b36263008d2959e6e561cc92c5cf4a41c
parent 923a9b5a7aede64a76e399d9880368f0a1e7e9bf
Author: geeknik <466878+geeknik@users.noreply.github.com>
Date:   Sun, 13 Aug 2023 14:35:14 +0000

Fix potential crashes in char_to_hex

Co-authored-by: William Casarin <jb55@jb55.com>
Fixes: https://github.com/damus-io/nostrdb/issues/10

Diffstat:
M
hex.h
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hex.h b/hex.h
@@ -13,9 +13,9 @@ static const char hex_table[256] = {
     ['E'] = 14, ['F'] = 15
 };
 
-static inline int char_to_hex(unsigned char *val, int c)
+static inline int char_to_hex(unsigned char *val, unsigned char c)
 {
-	if (hex_table[(int)c] || c == '0') {
+	if (hex_table[c] || c == '0') {
 		*val = hex_table[c];
 		return 1;
 	}