uclibc insists on having 70k static buffer for crypt.

For bbox it's not acceptable. Roll our own des and md5 crypt
implementation. Against older uclibc:

   text    data     bss     dec     hex filename
 759945     604    6684  767233   bb501 busybox_old
 759766     604    6684  767054   bb44e busybox_unstripped

so, we still save on code size.

1 files changed, 31 insertions, 1 deletions

diff --git a/loginutils/cryptpw.c b/loginutils/cryptpw.c
index 68f5e8074..1acbc6db0 100644
--- a/loginutils/cryptpw.c
+++ b/loginutils/cryptpw.c
@@ -7,6 +7,30 @@
 
 #include "libbb.h"
 
+#define TESTING 0
+
+/*
+set TESTING to 1 and pipe some file through this script
+if you played with bbox's crypt implementation.
+
+while read line; do
+	n=`./busybox cryptpw -a des -- "$line"`
+	o=`./busybox_old cryptpw -a des -- "$line"`
+	test "$n" != "$o" && {
+		echo n="$n"
+		echo o="$o"
+		exit
+	}
+	n=`./busybox cryptpw -- "$line"`
+	o=`./busybox_old cryptpw -- "$line"`
+	test "$n" != "$o" && {
+		echo n="$n"
+		echo o="$o"
+		exit
+	}
+done
+ */
+
 int cryptpw_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int cryptpw_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
@@ -18,11 +42,17 @@ int cryptpw_main(int argc ATTRIBUTE_UNUSED, char **argv)
 		//((uint32_t*)&salt)[0] = '$' + '1'*0x100 + '$'*0x10000;
 		/* Hope one day gcc will do it itself (inlining strcpy) */
 		crypt_make_salt(salt + 3, 4, 0); /* md5 */
+#if TESTING
+		strcpy(salt + 3, "ajg./bcf");
+#endif
 	} else {
 		crypt_make_salt(salt, 1, 0);     /* des */
+#if TESTING
+		strcpy(salt, "a.");
+#endif
 	}
 
-	puts(pw_encrypt(argv[optind] ? argv[optind] : xmalloc_fgetline(stdin), salt));
+	puts(pw_encrypt(argv[optind] ? argv[optind] : xmalloc_fgetline(stdin), salt, 1));
 
 	return 0;
 }