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, 10 insertions, 12 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 97aae0bb4..bd2dbe573 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1032,18 +1032,8 @@ extern int restricted_shell(const char *shell);
 extern void setup_environment(const char *shell, int clear_env, int change_env, const struct passwd *pw);
 extern int correct_password(const struct passwd *pw);
 /* Returns a ptr to static storage */
-extern char *pw_encrypt(const char *clear, const char *salt);
+extern char *pw_encrypt(const char *clear, const char *salt, int cleanup);
 extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
-
-int index_in_str_array(const char *const string_array[], const char *key);
-int index_in_strings(const char *strings, const char *key);
-int index_in_substr_array(const char *const string_array[], const char *key);
-int index_in_substrings(const char *strings, const char *key);
-const char *nth_string(const char *strings, int n);
-
-extern void print_login_issue(const char *issue_file, const char *tty);
-extern void print_login_prompt(void);
-
 /* rnd is additional random input. New one is returned.
  * Useful if you call crypt_make_salt many times in a row:
  * rnd = crypt_make_salt(buf1, 4, 0);
@@ -1052,11 +1042,19 @@ extern void print_login_prompt(void);
  * (otherwise we risk having same salt generated)
  */
 extern int crypt_make_salt(char *p, int cnt, int rnd);
-
 /* Returns number of lines changed, or -1 on error */
 extern int update_passwd(const char *filename, const char *username,
 			const char *new_pw);
 
+int index_in_str_array(const char *const string_array[], const char *key);
+int index_in_strings(const char *strings, const char *key);
+int index_in_substr_array(const char *const string_array[], const char *key);
+int index_in_substrings(const char *strings, const char *key);
+const char *nth_string(const char *strings, int n);
+
+extern void print_login_issue(const char *issue_file, const char *tty);
+extern void print_login_prompt(void);
+
 /* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
 int get_terminal_width_height(int fd, unsigned *width, unsigned *height);