/* See LICENSE file for copyright and license details. */
#include "common.h"
#if defined(__GNUC__)
__attribute__((__pure__))
#endif
static int
equiv(const char *a, const char *b)
{
while (*a && *b && *b != '[') {
if (tolower(*a) == tolower(*b) || (*b == '/' && (*a == '-' || *a == '_'))) {
a++;
b++;
} else if (*b == '-' && !isdigit(b[-1])) {
b++;
} else {
return 0;
}
}
if (!strncasecmp(a, "sum", 3))
a = &a[3];
return !*a && (!*b || *b == '[');
}
int
libhashsum_get_algorithm_string(enum libhashsum_algorithm *algorithm_out, const char *algorithm)
{
if (equiv(algorithm, "MD2"))
*algorithm_out = LIBHASHSUM_MD2;
else if (equiv(algorithm, "MD4"))
*algorithm_out = LIBHASHSUM_MD4;
else if (equiv(algorithm, "MD5"))
*algorithm_out = LIBHASHSUM_MD5;
else if (equiv(algorithm, "RIPEMD-128") || equiv(algorithm, "RMD-128"))
*algorithm_out = LIBHASHSUM_RIPEMD_128;
else if (equiv(algorithm, "RIPEMD-160") || equiv(algorithm, "RMD-160"))
*algorithm_out = LIBHASHSUM_RIPEMD_160;
else if (equiv(algorithm, "RIPEMD-256") || equiv(algorithm, "RMD-256"))
*algorithm_out = LIBHASHSUM_RIPEMD_256;
else if (equiv(algorithm, "RIPEMD-320") || equiv(algorithm, "RMD-320"))
*algorithm_out = LIBHASHSUM_RIPEMD_320;
else if (equiv(algorithm, "SHA-0"))
*algorithm_out = LIBHASHSUM_SHA0;
else if (equiv(algorithm, "SHA-1"))
*algorithm_out = LIBHASHSUM_SHA1;
else if (equiv(algorithm, "SHA-224") || equiv(algorithm, "SHA-2-224"))
*algorithm_out = LIBHASHSUM_SHA_224;
else if (equiv(algorithm, "SHA-256") || equiv(algorithm, "SHA-2-256"))
*algorithm_out = LIBHASHSUM_SHA_256;
else if (equiv(algorithm, "SHA-384") || equiv(algorithm, "SHA-2-384"))
*algorithm_out = LIBHASHSUM_SHA_384;
else if (equiv(algorithm, "SHA-512") || equiv(algorithm, "SHA-2-512"))
*algorithm_out = LIBHASHSUM_SHA_512;
else if (equiv(algorithm, "SHA-512/224") || equiv(algorithm, "SHA-2-512/224"))
*algorithm_out = LIBHASHSUM_SHA_512_224;
else if (equiv(algorithm, "SHA-512/256") || equiv(algorithm, "SHA-2-512/256"))
*algorithm_out = LIBHASHSUM_SHA_512_256;
else if (equiv(algorithm, "Keccak-224"))
*algorithm_out = LIBHASHSUM_KECCAK_224;
else if (equiv(algorithm, "Keccak-256"))
*algorithm_out = LIBHASHSUM_KECCAK_256;
else if (equiv(algorithm, "Keccak-384"))
*algorithm_out = LIBHASHSUM_KECCAK_384;
else if (equiv(algorithm, "Keccak-512"))
*algorithm_out = LIBHASHSUM_KECCAK_512;
else if (equiv(algorithm, "SHA-3-224"))
*algorithm_out = LIBHASHSUM_SHA3_224;
else if (equiv(algorithm, "SHA-3-256"))
*algorithm_out = LIBHASHSUM_SHA3_256;
else if (equiv(algorithm, "SHA-3-384"))
*algorithm_out = LIBHASHSUM_SHA3_384;
else if (equiv(algorithm, "SHA-3-512"))
*algorithm_out = LIBHASHSUM_SHA3_512;
else if (equiv(algorithm, "SHAKE-128[]"))
*algorithm_out = LIBHASHSUM_SHAKE128;
else if (equiv(algorithm, "SHAKE-256[]"))
*algorithm_out = LIBHASHSUM_SHAKE256;
else if (equiv(algorithm, "SHAKE-512[]"))
*algorithm_out = LIBHASHSUM_SHAKE512;
else if (equiv(algorithm, "RawSHAKE-128[]"))
*algorithm_out = LIBHASHSUM_RAWSHAKE128;
else if (equiv(algorithm, "RawSHAKE-256[]"))
*algorithm_out = LIBHASHSUM_RAWSHAKE256;
else if (equiv(algorithm, "RawSHAKE-512[]"))
*algorithm_out = LIBHASHSUM_RAWSHAKE512;
else if (equiv(algorithm, "Keccak[]"))
*algorithm_out = LIBHASHSUM_KECCAK;
else if (equiv(algorithm, "BLAKE-224[]") || equiv(algorithm, "B224[]"))
*algorithm_out = LIBHASHSUM_BLAKE224;
else if (equiv(algorithm, "BLAKE-256[]") || equiv(algorithm, "B256[]"))
*algorithm_out = LIBHASHSUM_BLAKE256;
else if (equiv(algorithm, "BLAKE-384[]") || equiv(algorithm, "B384[]"))
*algorithm_out = LIBHASHSUM_BLAKE384;
else if (equiv(algorithm, "BLAKE-512[]") || equiv(algorithm, "B512[]"))
*algorithm_out = LIBHASHSUM_BLAKE512;
else
return 0;
return 1;
}
