Adding upstream version 1:4.8.1.upstream/1%4.8.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 98 insertions, 0 deletions

diff --git a/lib/encrypt.c b/lib/encrypt.c
new file mode 100644
index 0000000..4247f24
--- /dev/null
+++ b/lib/encrypt.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 1990 - 1993, Julianne Frances Haugh
+ * Copyright (c) 1996 - 2000, Marek Michałkiewicz
+ * Copyright (c) 2005       , Tomasz Kłoczko
+ * Copyright (c) 2007 - 2010, Nicolas François
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the copyright holders or contributors may not be used to
+ *    endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#ident "$Id$"
+
+#include <unistd.h>
+#include <stdio.h>
+
+#include "prototypes.h"
+#include "defines.h"
+
+/*@exposed@*//*@null@*/char *pw_encrypt (const char *clear, const char *salt)
+{
+	static char cipher[128];
+	char *cp;
+
+	cp = crypt (clear, salt);
+	if (NULL == cp) {
+		/*
+		 * Single Unix Spec: crypt() may return a null pointer,
+		 * and set errno to indicate an error. In this case return
+		 * the NULL so the caller can handle appropriately.
+		 */
+		return NULL;
+	}
+
+	/* Some crypt() do not return NULL if the algorithm is not
+	 * supported, and return a DES encrypted password. */
+	if ((NULL != salt) && (salt[0] == '$') && (strlen (cp) <= 13))
+	{
+		/*@observer@*/const char *method;
+		switch (salt[1])
+		{
+			case '1':
+				method = "MD5";
+				break;
+			case '2':
+				method = "BCRYPT";
+				break;
+			case '5':
+				method = "SHA256";
+				break;
+			case '6':
+				method = "SHA512";
+				break;
+			default:
+			{
+				static char nummethod[4] = "$x$";
+				nummethod[1] = salt[1];
+				method = &nummethod[0];
+			}
+		}
+		(void) fprintf (stderr,
+		                _("crypt method not supported by libcrypt? (%s)\n"),
+		                method);
+		exit (EXIT_FAILURE);
+	}
+
+	if (strlen (cp) != 13) {
+		return cp;	/* nonstandard crypt() in libc, better bail out */
+	}
+
+	strcpy (cipher, cp);
+
+	return cipher;
+}
+