X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fcrypt%2Fcrypt_des.c;h=338a8f3715f2da6d925ce2fb6fd741fcf49e9656;hb=ea3b40a321e751e016948087ef23ae7b9e8e0150;hp=d7b2b15af40be3bdc71b5554f154e11615b35758;hpb=b9bb8f67bbac9bab5314fb00974ad469476e936e;p=musl

diff --git a/src/crypt/crypt_des.c b/src/crypt/crypt_des.c
index d7b2b15a..338a8f37 100644
--- a/src/crypt/crypt_des.c
+++ b/src/crypt/crypt_des.c
@@ -56,9 +56,7 @@
 #include <stdint.h>
 #include <string.h>
 
-struct expanded_key {
-	uint32_t l[16], r[16];
-};
+#include "crypt_des.h"
 
 #define _PASSWORD_EFMT1 '_'
 
@@ -692,7 +690,7 @@ static uint32_t setup_salt(uint32_t salt)
 	return saltbits;
 }
 
-static void des_setkey(const unsigned char *key, struct expanded_key *ekey)
+void __des_setkey(const unsigned char *key, struct expanded_key *ekey)
 {
 	uint32_t k0, k1, rawkey0, rawkey1;
 	unsigned int shifts, round, i, ibit;
@@ -753,7 +751,7 @@ static void des_setkey(const unsigned char *key, struct expanded_key *ekey)
 /*
  * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format.
  */
-static void do_des(uint32_t l_in, uint32_t r_in,
+void __do_des(uint32_t l_in, uint32_t r_in,
     uint32_t *l_out, uint32_t *r_out,
     uint32_t count, uint32_t saltbits, const struct expanded_key *ekey)
 {
@@ -862,7 +860,7 @@ static void des_cipher(const unsigned char *in, unsigned char *out,
 	    ((uint32_t)in[5] << 16) |
 	    ((uint32_t)in[4] << 24);
 
-	do_des(rawl, rawr, &l_out, &r_out, count, saltbits, ekey);
+	__do_des(rawl, rawr, &l_out, &r_out, count, saltbits, ekey);
 
 	out[0] = l_out >> 24;
 	out[1] = l_out >> 16;
@@ -879,10 +877,7 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
 	const unsigned char *key = (const unsigned char *)_key;
 	const unsigned char *setting = (const unsigned char *)_setting;
 	struct expanded_key ekey;
-	union {
-		unsigned char c[8];
-		uint32_t i[2];
-	} keybuf;
+	unsigned char keybuf[8];
 	unsigned char *p, *q;
 	uint32_t count, salt, l, r0, r1;
 	unsigned int i;
@@ -891,13 +886,13 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
 	 * Copy the key, shifting each character left by one bit and padding
 	 * with zeroes.
 	 */
-	q = keybuf.c;
-	while (q <= &keybuf.c[sizeof(keybuf.c) - 1]) {
+	q = keybuf;
+	while (q <= &keybuf[sizeof(keybuf) - 1]) {
 		*q++ = *key << 1;
 		if (*key)
 			key++;
 	}
-	des_setkey(keybuf.c, &ekey);
+	__des_setkey(keybuf, &ekey);
 
 	if (*setting == _PASSWORD_EFMT1) {
 		/*
@@ -911,7 +906,7 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
 				return NULL;
 			count |= value << (i - 1) * 6;
 		}
-		if (!count || count > 262143)
+		if (!count)
 			return NULL;
 
 		for (i = 5, salt = 0; i < 9; i++) {
@@ -925,14 +920,14 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
 			/*
 			 * Encrypt the key with itself.
 			 */
-			des_cipher(keybuf.c, keybuf.c, 1, 0, &ekey);
+			des_cipher(keybuf, keybuf, 1, 0, &ekey);
 			/*
 			 * And XOR with the next 8 characters of the key.
 			 */
-			q = keybuf.c;
-			while (q <= &keybuf.c[sizeof(keybuf.c) - 1] && *key)
+			q = keybuf;
+			while (q <= &keybuf[sizeof(keybuf) - 1] && *key)
 				*q++ ^= *key++ << 1;
-			des_setkey(keybuf.c, &ekey);
+			__des_setkey(keybuf, &ekey);
 		}
 
 		memcpy(output, setting, 9);
@@ -960,7 +955,7 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
 	/*
 	 * Do it.
 	 */
-	do_des(0, 0, &r0, &r1, count, setup_salt(salt), &ekey);
+	__do_des(0, 0, &r0, &r1, count, setup_salt(salt), &ekey);
 
 	/*
 	 * Now encode the result...