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-rw-r--r--c/src/librpc/src/rpc/des_crypt.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/c/src/librpc/src/rpc/des_crypt.c b/c/src/librpc/src/rpc/des_crypt.c
index e69de29bb2..d74ce9403a 100644
--- a/c/src/librpc/src/rpc/des_crypt.c
+++ b/c/src/librpc/src/rpc/des_crypt.c
@@ -0,0 +1,153 @@
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part. Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+/*
+ * des_crypt.c, DES encryption library routines
+ * Copyright (C) 1986, Sun Microsystems, Inc.
+ */
+
+#include <sys/types.h>
+#include <rpc/des_crypt.h>
+#include <rpc/des.h>
+
+#ifndef lint
+/* from: static char sccsid[] = "@(#)des_crypt.c 2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI"; */
+static const char rcsid[] = "$FreeBSD: src/lib/libc/rpc/des_crypt.c,v 1.3 1999/08/28 00:00:38 peter Exp $";
+#endif
+
+static int common_crypt __P(( char *, char *, register unsigned, unsigned, struct desparams * ));
+int (*__des_crypt_LOCAL)() = 0;
+extern _des_crypt_call __P(( char *, int, struct desparams * ));
+/*
+ * Copy 8 bytes
+ */
+#define COPY8(src, dst) { \
+ register char *a = (char *) dst; \
+ register 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) { \
+ register char *a = (char *) dst; \
+ register char *b = (char *) src; \
+ register 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;
+ register unsigned len;
+ unsigned mode;
+ register struct desparams *desp;
+{
+ register 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);
+}