prevent CNAME/PTR parsing from reading data past the response end

[musl] / src / crypt / crypt_des.c

diff --git a/src/crypt/crypt_des.c b/src/crypt/crypt_des.c
index dc95dca..338a8f3 100644 (file)
--- 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;
@@ -894,7 +892,7 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
                if (*key)
                        key++;
        }
-       des_setkey(keybuf, &ekey);
+       __des_setkey(keybuf, &ekey);
 
        if (*setting == _PASSWORD_EFMT1) {
                /*
@@ -929,7 +927,7 @@ static char *_crypt_extended_r_uut(const char *_key, const char *_setting, char
                        q = keybuf;
                        while (q <= &keybuf[sizeof(keybuf) - 1] && *key)
                                *q++ ^= *key++ << 1;
-                       des_setkey(keybuf, &ekey);
+                       __des_setkey(keybuf, &ekey);
                }
 
                memcpy(output, setting, 9);
@@ -957,7 +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...