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Remove spagetti

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This commit is contained in:
jvoisin 2013-10-26 16:17:16 +01:00
parent 64b6750ee3
commit c99497170b
1 changed files with 33 additions and 46 deletions
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79
libr/hash/hash.c
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@ -4,6 +4,27 @@
R_LIB_VERSION(r_hash);
struct { const char *name; ut64 bit; } static const hash_name_bytes[] = {
{"all", UT64_MAX},
{"xor", R_HASH_XOR},
{"xorpair", R_HASH_XORPAIR},
{"md4", R_HASH_MD4},
{"md5", R_HASH_MD5},
{"sha1", R_HASH_SHA1},
{"sha256", R_HASH_SHA256},
{"sha384", R_HASH_SHA384},
{"sha512", R_HASH_SHA512},
{"crc16", R_HASH_CRC16},
{"crc32", R_HASH_CRC32},
{"adler32", R_HASH_ADLER32},
{"xxhash", R_HASH_XXHASH},
{"parity", R_HASH_PARITY},
{"entropy", R_HASH_ENTROPY},
{"hamdist", R_HASH_HAMDIST},
{"pcprint", R_HASH_PCPRINT},
{"mod255", R_HASH_MOD255},
{NULL, 0}};
/* returns 0-100 */
R_API int r_hash_pcprint(const ut8 *buffer, ut64 len) {
const ut8 *end = buffer + len;
@ -56,26 +77,12 @@ R_API ut8 r_hash_deviation(const ut8 *b, ut64 len) {
return c;
}
/* TODO: rewrite in a non-spaguetty way */
R_API const char *r_hash_name(ut64 bit) {
if (bit & R_HASH_MD4) return "md4";
if (bit & R_HASH_MD5) return "md5";
if (bit & R_HASH_SHA1) return "sha1";
if (bit & R_HASH_SHA256) return "sha256";
if (bit & R_HASH_SHA384) return "sha384";
if (bit & R_HASH_SHA512) return "sha512";
if (bit & R_HASH_CRC16) return "crc16";
if (bit & R_HASH_CRC32) return "crc32";
if (bit & R_HASH_PARITY) return "parity";
if (bit & R_HASH_ENTROPY) return "entropy";
if (bit & R_HASH_HAMDIST) return "hamdist";
if (bit & R_HASH_XOR) return "xor";
if (bit & R_HASH_XORPAIR) return "xorpair";
if (bit & R_HASH_MOD255) return "mod255";
if (bit & R_HASH_PCPRINT) return "pcprint";
if (bit & R_HASH_XXHASH) return "xxhash";
if (bit & R_HASH_ADLER32) return "adler32";
return "";
int i;
for (i=1; hash_name_bytes[i].bit; i++)
if (bit & hash_name_bytes[i].bit)
return hash_name_bytes[i].name;
return "";
}
R_API int r_hash_size(int bit) {
@ -100,30 +107,10 @@ R_API int r_hash_size(int bit) {
}
R_API ut64 r_hash_name_to_bits(const char *name) {
struct { const char *name; ut64 bit; } static const array[] = {
{"all", UT64_MAX},
{"xor", R_HASH_XOR},
{"xorpair", R_HASH_XORPAIR},
{"md4", R_HASH_MD4},
{"md5", R_HASH_MD5},
{"sha1", R_HASH_SHA1},
{"sha256", R_HASH_SHA256},
{"sha384", R_HASH_SHA384},
{"sha512", R_HASH_SHA512},
{"crc16", R_HASH_CRC16},
{"crc32", R_HASH_CRC32},
{"adler32", R_HASH_ADLER32},
{"xxhash", R_HASH_XXHASH},
{"parity", R_HASH_PARITY},
{"entropy", R_HASH_ENTROPY},
{"hamdist", R_HASH_HAMDIST},
{"pcprint", R_HASH_PCPRINT},
{"mod255", R_HASH_MOD255},
{NULL, 0}};
int i = 0, j, len = 0;
char name_lowercase[128];
const char* ptr = name_lowercase;
ut64 bits = 0; //R_HASH_NONE;
ut64 bits = R_HASH_NONE;
for (j=0;name[j] && j<sizeof (name_lowercase); j++)
name_lowercase[j] = tolower (name[j]);
@ -132,9 +119,9 @@ R_API ut64 r_hash_name_to_bits(const char *name) {
while (name_lowercase[i++]) {
len++;
if (name_lowercase[i] == ',') {
for (j=0; array[j].name; j++) {
if (!strncmp (ptr, array[j].name, len)) {
bits |= array[j].bit;
for (j=0; hash_name_bytes[j].name; j++) {
if (!strncmp (ptr, hash_name_bytes[j].name, len)) {
bits |= hash_name_bytes[j].bit;
break;
}
}
@ -146,9 +133,9 @@ R_API ut64 r_hash_name_to_bits(const char *name) {
ptr++;
}
}
for (i=0; array[i].name; i++) { //last word of the list
if (!strcmp (ptr, array[i].name))
bits |= array[i].bit;
for (i=0; hash_name_bytes[i].name; i++) { //last word of the list
if (!strcmp (ptr, hash_name_bytes[i].name))
bits |= hash_name_bytes[i].bit;
}
return bits;
}