libbb: add optionl support for SHA256/512 encrypted passwords
function old new delta
sha_crypt - 2423 +2423
cryptpw_main 128 183 +55
to64 - 29 +29
pw_encrypt 974 1000 +26
str_rounds - 11 +11
login_main 1532 1541 +9
packed_usage 25215 25200 -15
__md5_to64 29 - -29
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 3/1 up/down: 2553/-44) Total: 2509 bytes
diff --git a/libbb/pw_encrypt_md5.c b/libbb/pw_encrypt_md5.c
index 8d0a516..b7478aa 100644
--- a/libbb/pw_encrypt_md5.c
+++ b/libbb/pw_encrypt_md5.c
@@ -494,16 +494,6 @@
}
-static char*
-__md5_to64(char *s, unsigned v, int n)
-{
- while (--n >= 0) {
- *s++ = ascii64[v & 0x3f];
- v >>= 6;
- }
- return s;
-}
-
/*
* UNIX password
*
@@ -605,9 +595,9 @@
final[16] = final[5];
for (i = 0; i < 5; i++) {
unsigned l = (final[i] << 16) | (final[i+6] << 8) | final[i+12];
- p = __md5_to64(p, l, 4);
+ p = to64(p, l, 4);
}
- p = __md5_to64(p, final[11], 2);
+ p = to64(p, final[11], 2);
*p = '\0';
/* Don't leave anything around in vm they could use. */