musl: re-enable des crypto support, fixes pppd MPPE issues

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

SVN-Revision: 47078

toolchain/musl/patches/901-crypt_size_hack.patch

@@ -1,24 +1,18 @@
 --- 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);
+@@ -19,12 +19,6 @@ char *__crypt_r(const char *key, const c
+ 	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);
+ 	return __crypt_des(key, salt, output);
+ }
 --- a/src/crypt/crypt_sha512.c
 +++ b/src/crypt/crypt_sha512.c
 @@ -12,6 +12,7 @@
@@ -49,50 +43,6 @@
  	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 @@