#include "cache.h"
const signed char hexval_table[256] = {
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
0, 1, 2, 3, 4, 5, 6, 7,
8, 9, -1, -1, -1, -1, -1, -1,
-1, 10, 11, 12, 13, 14, 15, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, 10, 11, 12, 13, 14, 15, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
};
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;
for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
int val = hex2chr(hex);
if (val < 0)
return -1;
*sha1++ = val;
hex += 2;
}
return 0;
}
int get_oid_hex(const char *hex, struct object_id *oid)
{
return get_sha1_hex(hex, oid->hash);
}
int parse_oid_hex(const char *hex, struct object_id *oid, const char **end)
{
int ret = get_oid_hex(hex, oid);
if (!ret)
*end = hex + GIT_SHA1_HEXSZ;
return ret;
}
char *sha1_to_hex_r(char *buffer, const unsigned char *sha1)
{
static const char hex[] = "0123456789abcdef";
char *buf = buffer;
int i;
for (i = 0; i < GIT_SHA1_RAWSZ; i++) {
unsigned int val = *sha1++;
*buf++ = hex[val >> 4];
*buf++ = hex[val & 0xf];
}
*buf = '\0';
return buffer;
}
char *oid_to_hex_r(char *buffer, const struct object_id *oid)
{
return sha1_to_hex_r(buffer, oid->hash);
}
char *sha1_to_hex(const unsigned char *sha1)
{
static int bufno;
static char hexbuffer[4][GIT_MAX_HEXSZ + 1];
bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer);
return sha1_to_hex_r(hexbuffer[bufno], sha1);
}
char *oid_to_hex(const struct object_id *oid)
{
return sha1_to_hex(oid->hash);
}