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-rw-r--r--libmisc/valid.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/libmisc/valid.c b/libmisc/valid.c
deleted file mode 100644
index 326635f..0000000
--- a/libmisc/valid.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 1989 - 1993, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2007 - 2008, Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <config.h>
-
-#ident "$Id$"
-
-#include <sys/types.h>
-#include <stdio.h>
-#include "prototypes.h"
-#include "defines.h"
-#include <pwd.h>
-/*
- * valid - compare encrypted passwords
- *
- * Valid() compares the DES encrypted password from the password file
- * against the password which the user has entered after it has been
- * encrypted using the same salt as the original. Entries which do
- * not have a password file entry have a NULL pw_name field and this
- * is used to indicate that a dummy salt must be used to encrypt the
- * password anyway.
- */
-bool valid (const char *password, const struct passwd *ent)
-{
- const char *encrypted;
- /*@observer@*/const char *salt;
-
- /*
- * Start with blank or empty password entries. Always encrypt
- * a password if no such user exists. Only if the ID exists and
- * the password is really empty do you return quickly. This
- * routine is meant to waste CPU time.
- */
-
- if ((NULL != ent->pw_name) && ('\0' == ent->pw_passwd[0])) {
- if ('\0' == password[0]) {
- return true; /* user entered nothing */
- } else {
- return false; /* user entered something! */
- }
- }
-
- /*
- * If there is no entry then we need a salt to use.
- */
-
- if ((NULL == ent->pw_name) || ('\0' == ent->pw_passwd[0])) {
- salt = "xx";
- } else {
- salt = ent->pw_passwd;
- }
-
- /*
- * Now, perform the encryption using the salt from before on
- * the users input. Since we always encrypt the string, it
- * should be very difficult to determine if the user exists by
- * looking at execution time.
- */
-
- encrypted = pw_encrypt (password, salt);
-
- /*
- * One last time we must deal with there being no password file
- * entry for the user. We use the pw_name == NULL idiom to
- * cause non-existent users to not be validated.
- */
-
- if ( (NULL != ent->pw_name)
- && (NULL != encrypted)
- && (strcmp (encrypted, ent->pw_passwd) == 0)) {
- return true;
- } else {
- return false;
- }
-}
-