1 files changed, 67 insertions, 0 deletions
diff --git a/common/passwd.c b/common/passwd.c
new file mode 100644
index 0000000..c77fccb
--- /dev/null
+++ b/common/passwd.c
@@ -0,0 +1,67 @@
+/* passwd.c  --  Generates a SHA512 hash of a clear-text password
+ *
+ *  GPLv2 - Copyright (C) 2008  David Sommerseth <dazo@users.sourceforge.net>
+ *
+ *  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; version 2
+ *  of the License.
+ *
+ *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "eurephia_nullsafe.h"
+#include "sha512.h"
+
+char *_passwdhash(const char *pwd, const char *file, const int line) {
+        SHA512Context sha;
+        uint8_t sha_res[SHA512_HASH_SIZE];
+        char *ret = NULL, *ptr = NULL;
+        unsigned len = 0, i;
+
+        len = strlen_nullsafe(pwd);
+        if( (pwd == NULL) && (len == 0) ) {
+                return NULL;
+        }
+
+        // Generate SHA512 hash of password
+        memset(&sha, 0, sizeof(SHA512Context));
+        memset(&sha_res, 0, sizeof(sha_res));
+        SHA512Init(&sha);
+        SHA512Update(&sha, pwd, len);
+        SHA512Final(&sha, sha_res);
+
+        // Allocate memory for the return buffer
+#ifdef MEMWATCH
+        ret = (char *) mwMalloc((SHA512_HASH_SIZE*2)+3, file, line);
+#else
+        ret = (char *) malloc((SHA512_HASH_SIZE*2)+3);
+#endif
+        memset(ret, 0,(SHA512_HASH_SIZE*2)+3);
+        ptr = ret;
+
+        // Generate a readable string of the hash
+        for( i = 0; i < SHA512_HASH_SIZE; i++ ) {
+                sprintf(ptr, "%02x", sha_res[i]);
+                ptr += 2;
+        }
+
+        // Cleanup - remove hash data from memory
+        memset(&sha, 0, sizeof(SHA512Context));
+        memset(&sha_res, 0, sizeof(sha_res));
+
+        return ret;
+}