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-rw-r--r--hex.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/hex.c b/hex.c
index 28b44118cb..8df2d63728 100644
--- a/hex.c
+++ b/hex.c
@@ -35,6 +35,18 @@ const signed char hexval_table[256] = {
-1, -1, -1, -1, -1, -1, -1, -1, /* f8-ff */
};
+int hex_to_bytes(unsigned char *binary, const char *hex, size_t len)
+{
+ for (; len; len--, hex += 2) {
+ unsigned int val = (hexval(hex[0]) << 4) | hexval(hex[1]);
+
+ if (val & ~0xff)
+ return -1;
+ *binary++ = val;
+ }
+ return 0;
+}
+
int get_sha1_hex(const char *hex, unsigned char *sha1)
{
int i;