1 files changed, 45 insertions, 0 deletions

diff --git a/busybox/libbb/pw_encrypt.c b/busybox/libbb/pw_encrypt.c
new file mode 100644
index 000000000..727149d0c
--- /dev/null
+++ b/busybox/libbb/pw_encrypt.c
@@ -0,0 +1,45 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routine.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <string.h>
+#include <crypt.h>
+#include "libbb.h"
+
+
+extern char *pw_encrypt(const char *clear, const char *salt)
+{
+        static char cipher[128];
+        char *cp;
+
+#ifdef CONFIG_FEATURE_SHA1_PASSWORDS
+        if (strncmp(salt, "$2$", 3) == 0) {
+                return sha1_crypt(clear);
+        }
+#endif
+        cp = (char *) crypt(clear, salt);
+        /* if crypt (a nonstandard crypt) returns a string too large,
+           truncate it so we don't overrun buffers and hope there is
+           enough security in what's left */
+        safe_strncpy(cipher, cp, sizeof(cipher));
+        return cipher;
+}
+