[LIBTIRPC]

[reactos.git] / reactos / dll / 3rdparty / libtirpc / src / des_crypt.c

diff --git a/reactos/dll/3rdparty/libtirpc/src/des_crypt.c b/reactos/dll/3rdparty/libtirpc/src/des_crypt.c
new file mode 100644 (file)
index 0000000..89f7266
--- /dev/null
+++ b/reactos/dll/3rdparty/libtirpc/src/des_crypt.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - 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.
+ * - Neither the name of Sun Microsystems, Inc. nor the names of its
+ *   contributors may 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 HOLDER 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.
+ */
+/*
+ * des_crypt.c, DES encryption library routines
+ * Copyright (C) 1986, Sun Microsystems, Inc.
+ */
+
+#include <wintirpc.h>
+#include <sys/types.h>
+#include <rpc/types.h>
+#include <rpc/des_crypt.h>
+#include <rpc/des.h>
+#if 0
+#ifndef lint
+static char sccsid[] = "@(#)des_crypt.c        2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI";
+#endif
+#endif
+//#include <sys/cdefs.h>
+
+static int common_crypt( char *, char *, unsigned, unsigned, struct desparams * );
+int (*__des_crypt_LOCAL)() = 0;
+extern int _des_crypt_call(char *, int, struct desparams *);
+/*
+ * Copy 8 bytes
+ */
+#define COPY8(src, dst) { \
+       char *a = (char *) dst; \
+       char *b = (char *) src; \
+       *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
+       *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
+}
+ 
+/*
+ * Copy multiple of 8 bytes
+ */
+#define DESCOPY(src, dst, len) { \
+       char *a = (char *) dst; \
+       char *b = (char *) src; \
+       int i; \
+       for (i = (int) len; i > 0; i -= 8) { \
+               *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
+               *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
+       } \
+}
+
+/*
+ * CBC mode encryption
+ */
+int
+cbc_crypt(key, buf, len, mode, ivec)
+       char *key;
+       char *buf;
+       unsigned len;
+       unsigned mode;
+       char *ivec;     
+{
+       int err;
+       struct desparams dp;
+
+#ifdef BROKEN_DES
+       dp.UDES.UDES_buf = buf;
+       dp.des_mode = ECB;
+#else
+       dp.des_mode = CBC;
+#endif
+       COPY8(ivec, dp.des_ivec);
+       err = common_crypt(key, buf, len, mode, &dp);
+       COPY8(dp.des_ivec, ivec);
+       return(err);
+}
+
+
+/*
+ * ECB mode encryption
+ */
+int
+ecb_crypt(key, buf, len, mode)
+       char *key;
+       char *buf;
+       unsigned len;
+       unsigned mode;
+{
+       struct desparams dp;
+
+#ifdef BROKEN_DES
+       dp.UDES.UDES_buf = buf;
+       dp.des_mode = CBC;
+#else
+       dp.des_mode = ECB;
+#endif
+       return(common_crypt(key, buf, len, mode, &dp));
+}
+
+
+
+/*
+ * Common code to cbc_crypt() & ecb_crypt()
+ */
+static int
+common_crypt(key, buf, len, mode, desp)        
+       char *key;      
+       char *buf;
+       unsigned len;
+       unsigned mode;
+       struct desparams *desp;
+{
+       int desdev;
+
+       if ((len % 8) != 0 || len > DES_MAXDATA) {
+               return(DESERR_BADPARAM);
+       }
+       desp->des_dir =
+               ((mode & DES_DIRMASK) == DES_ENCRYPT) ? ENCRYPT : DECRYPT;
+
+       desdev = mode & DES_DEVMASK;
+       COPY8(key, desp->des_key);
+       /* 
+        * software
+        */
+       if (__des_crypt_LOCAL != NULL) {
+               if (!__des_crypt_LOCAL(buf, len, desp)) {
+                       return (DESERR_HWERROR);
+               }
+       } else {
+               if (!_des_crypt_call(buf, len, desp)) {
+                       return (DESERR_HWERROR);
+               }
+       }
+       return(desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE);
+}