X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=libbb%2Fpw_encrypt_des.c;h=19a9ab15b19305c7aaf0560cde9eab1676df7575;hb=16bcd504a32e6a7bf2015ffb241133f9ead6100b;hp=4e506f4986cd2c39536f0dc4a7cb3a09e68093f2;hpb=d324e1b808daca7eec5b8700824a886a21508714;p=oweals%2Fbusybox.git

diff --git a/libbb/pw_encrypt_des.c b/libbb/pw_encrypt_des.c
index 4e506f498..19a9ab15b 100644
--- a/libbb/pw_encrypt_des.c
+++ b/libbb/pw_encrypt_des.c
@@ -24,7 +24,7 @@
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ''AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
@@ -699,10 +699,16 @@ do_des(struct des_ctx *ctx, /*uint32_t l_in, uint32_t r_in,*/ uint32_t *l_out, u
 static void
 to64_msb_first(char *s, unsigned v)
 {
+#if 0
 	*s++ = ascii64[(v >> 18) & 0x3f]; /* bits 23..18 */
 	*s++ = ascii64[(v >> 12) & 0x3f]; /* bits 17..12 */
 	*s++ = ascii64[(v >> 6) & 0x3f]; /* bits 11..6 */
-	*s = ascii64[v & 0x3f]; /* bits 5..0 */
+	*s   = ascii64[v & 0x3f]; /* bits 5..0 */
+#endif
+	*s++ = i64c(v >> 18); /* bits 23..18 */
+	*s++ = i64c(v >> 12); /* bits 17..12 */
+	*s++ = i64c(v >> 6); /* bits 11..6 */
+	*s   = i64c(v); /* bits 5..0 */
 }
 
 static char *
@@ -772,8 +778,10 @@ des_crypt(struct des_ctx *ctx, char output[DES_OUT_BUFSIZE],
 	to64_msb_first(output + 2, (r0 >> 8));
 	/* bits 7..0 of r0 and 31..16 of r1 */
 	to64_msb_first(output + 6, (r0 << 16) | (r1 >> 16));
-	/* (bits 15..0 of r1 + 00) and NUL byte */
+	/* bits 15..0 of r1 and two zero bits (plus extra zero byte) */
 	to64_msb_first(output + 10, (r1 << 8));
+	/* extra zero byte is encoded as '.', fixing it */
+	output[13] = '\0';
 #endif
 
 	return output;