musl: add a hack to remove unused crypt() algorithms, saves ~14k after lzma

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 46816
lede-17.01
Felix Fietkau 2015-09-08 10:57:11 +00:00
parent 8a7a939470
commit 9365745f8e
1 changed files with 110 additions and 0 deletions

View File

@ -0,0 +1,110 @@
--- a/src/crypt/crypt_r.c
+++ b/src/crypt/crypt_r.c
@@ -16,17 +16,7 @@ char *__crypt_r(const char *key, const c
* use the structure to store any internal state, and treats
* it purely as a char buffer for storing the result. */
char *output = (char *)data;
- if (salt[0] == '$' && salt[1] && salt[2]) {
- if (salt[1] == '1' && salt[2] == '$')
- return __crypt_md5(key, salt, output);
- if (salt[1] == '2' && salt[3] == '$')
- return __crypt_blowfish(key, salt, output);
- if (salt[1] == '5' && salt[2] == '$')
- return __crypt_sha256(key, salt, output);
- if (salt[1] == '6' && salt[2] == '$')
- return __crypt_sha512(key, salt, output);
- }
- return __crypt_des(key, salt, output);
+ return __crypt_md5(key, salt, output);
}
weak_alias(__crypt_r, crypt_r);
--- a/src/crypt/crypt_sha512.c
+++ b/src/crypt/crypt_sha512.c
@@ -12,6 +12,7 @@
#include <stdio.h>
#include <string.h>
#include <stdint.h>
+#if 0
/* public domain sha512 implementation based on fips180-3 */
/* >=2^64 bits messages are not supported (about 2000 peta bytes) */
@@ -369,3 +370,4 @@ char *__crypt_sha512(const char *key, co
return "*";
return p;
}
+#endif
--- a/src/crypt/crypt_blowfish.c
+++ b/src/crypt/crypt_blowfish.c
@@ -50,6 +50,7 @@
#include <string.h>
#include <stdint.h>
+#if 0
typedef uint32_t BF_word;
typedef int32_t BF_word_signed;
@@ -796,3 +797,4 @@ char *__crypt_blowfish(const char *key,
return "*";
}
+#endif
--- a/src/crypt/crypt_des.c
+++ b/src/crypt/crypt_des.c
@@ -56,6 +56,7 @@
#include <stdint.h>
#include <string.h>
+#if 0
struct expanded_key {
uint32_t l[16], r[16];
};
@@ -1016,3 +1017,4 @@ char *__crypt_des(const char *key, const
return (setting[0]=='*') ? "x" : "*";
}
+#endif
--- a/src/crypt/encrypt.c
+++ b/src/crypt/encrypt.c
@@ -16,6 +16,7 @@ static struct expanded_key __encrypt_key
void setkey(const char *key)
{
+#if 0
unsigned char bkey[8];
int i, j;
@@ -26,10 +27,12 @@ void setkey(const char *key)
}
__des_setkey(bkey, &__encrypt_key);
+#endif
}
void encrypt(char *block, int edflag)
{
+#if 0
struct expanded_key decrypt_key, *key;
uint32_t b[2];
int i, j;
@@ -57,4 +60,5 @@ void encrypt(char *block, int edflag)
for (i = 0; i < 2; i++)
for (j = 31; j >= 0; j--)
*p++ = b[i]>>j & 1;
+#endif
}
--- a/src/crypt/crypt_sha256.c
+++ b/src/crypt/crypt_sha256.c
@@ -13,6 +13,7 @@
#include <string.h>
#include <stdint.h>
+#if 0
/* public domain sha256 implementation based on fips180-3 */
struct sha256 {
@@ -320,3 +321,4 @@ char *__crypt_sha256(const char *key, co
return "*";
return p;
}
+#endif