d88e8106e8
In order to further reduce all-in-one headers, separate out functions in hex.h that do not operate on object hashes into its own file, hex-ll.h, and update the include directives in the .c files that need only such functions accordingly. Signed-off-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
#include "git-compat-util.h"
|
|
#include "hash.h"
|
|
#include "hex.h"
|
|
|
|
static int get_hash_hex_algop(const char *hex, unsigned char *hash,
|
|
const struct git_hash_algo *algop)
|
|
{
|
|
int i;
|
|
for (i = 0; i < algop->rawsz; i++) {
|
|
int val = hex2chr(hex);
|
|
if (val < 0)
|
|
return -1;
|
|
*hash++ = val;
|
|
hex += 2;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int get_hash_hex(const char *hex, unsigned char *sha1)
|
|
{
|
|
return get_hash_hex_algop(hex, sha1, the_hash_algo);
|
|
}
|
|
|
|
int get_oid_hex_algop(const char *hex, struct object_id *oid,
|
|
const struct git_hash_algo *algop)
|
|
{
|
|
int ret = get_hash_hex_algop(hex, oid->hash, algop);
|
|
if (!ret)
|
|
oid_set_algo(oid, algop);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* NOTE: This function relies on hash algorithms being in order from shortest
|
|
* length to longest length.
|
|
*/
|
|
int get_oid_hex_any(const char *hex, struct object_id *oid)
|
|
{
|
|
int i;
|
|
for (i = GIT_HASH_NALGOS - 1; i > 0; i--) {
|
|
if (!get_oid_hex_algop(hex, oid, &hash_algos[i]))
|
|
return i;
|
|
}
|
|
return GIT_HASH_UNKNOWN;
|
|
}
|
|
|
|
int get_oid_hex(const char *hex, struct object_id *oid)
|
|
{
|
|
return get_oid_hex_algop(hex, oid, the_hash_algo);
|
|
}
|
|
|
|
int parse_oid_hex_algop(const char *hex, struct object_id *oid,
|
|
const char **end,
|
|
const struct git_hash_algo *algop)
|
|
{
|
|
int ret = get_oid_hex_algop(hex, oid, algop);
|
|
if (!ret)
|
|
*end = hex + algop->hexsz;
|
|
return ret;
|
|
}
|
|
|
|
int parse_oid_hex_any(const char *hex, struct object_id *oid, const char **end)
|
|
{
|
|
int ret = get_oid_hex_any(hex, oid);
|
|
if (ret)
|
|
*end = hex + hash_algos[ret].hexsz;
|
|
return ret;
|
|
}
|
|
|
|
int parse_oid_hex(const char *hex, struct object_id *oid, const char **end)
|
|
{
|
|
return parse_oid_hex_algop(hex, oid, end, the_hash_algo);
|
|
}
|
|
|
|
char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash,
|
|
const struct git_hash_algo *algop)
|
|
{
|
|
static const char hex[] = "0123456789abcdef";
|
|
char *buf = buffer;
|
|
int i;
|
|
|
|
/*
|
|
* Our struct object_id has been memset to 0, so default to printing
|
|
* using the default hash.
|
|
*/
|
|
if (algop == &hash_algos[0])
|
|
algop = the_hash_algo;
|
|
|
|
for (i = 0; i < algop->rawsz; i++) {
|
|
unsigned int val = *hash++;
|
|
*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 hash_to_hex_algop_r(buffer, oid->hash, &hash_algos[oid->algo]);
|
|
}
|
|
|
|
char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *algop)
|
|
{
|
|
static int bufno;
|
|
static char hexbuffer[4][GIT_MAX_HEXSZ + 1];
|
|
bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer);
|
|
return hash_to_hex_algop_r(hexbuffer[bufno], hash, algop);
|
|
}
|
|
|
|
char *hash_to_hex(const unsigned char *hash)
|
|
{
|
|
return hash_to_hex_algop(hash, the_hash_algo);
|
|
}
|
|
|
|
char *oid_to_hex(const struct object_id *oid)
|
|
{
|
|
return hash_to_hex_algop(oid->hash, &hash_algos[oid->algo]);
|
|
}
|