1 files changed, 96 insertions, 0 deletions
diff --git a/crypto/heimdal/appl/kauth/encdata.c b/crypto/heimdal/appl/kauth/encdata.c
new file mode 100644
index 0000000..886f549
--- /dev/null
+++ b/crypto/heimdal/appl/kauth/encdata.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 "kauth.h"
+
+RCSID("$Id: encdata.c,v 1.10 1999/12/02 16:58:31 joda Exp $");
+
+int
+write_encrypted (int fd, void *buf, size_t len, des_key_schedule schedule,
+		 des_cblock *session, struct sockaddr_in *me,
+		 struct sockaddr_in *him)
+{
+     void *outbuf;
+     int32_t outlen, l;
+     int i;
+     unsigned char tmp[4];
+
+     outbuf = malloc(len + 30);
+     if (outbuf == NULL)
+	  return -1;
+     outlen = krb_mk_priv (buf, outbuf, len, schedule, session, me, him);
+     if (outlen < 0) {
+	  free(outbuf);
+	  return -1;
+     }
+     l = outlen;
+     for(i = 3; i >= 0; i--, l = l >> 8)
+	 tmp[i] = l & 0xff;
+     if (krb_net_write (fd, tmp, 4) != 4 ||
+	 krb_net_write (fd, outbuf, outlen) != outlen) {
+	  free(outbuf);
+	  return -1;
+     }
+     
+     free(outbuf);
+     return 0;
+}
+
+
+int
+read_encrypted (int fd, void *buf, size_t len, void **ret,
+		des_key_schedule schedule, des_cblock *session,
+		struct sockaddr_in *him, struct sockaddr_in *me)
+{
+     int status;
+     int32_t l;
+     MSG_DAT msg;
+     unsigned char tmp[4];
+
+     l = krb_net_read (fd, tmp, 4);
+     if (l != 4)
+	 return l;
+     l = (tmp[0] << 24) | (tmp[1] << 16) | (tmp[2] << 8) | tmp[3];
+     if (l > len)
+	  return -1;
+     if (krb_net_read (fd, buf, l) != l)
+	  return -1;
+     status = krb_rd_priv (buf, l, schedule, session, him, me, &msg);
+     if (status != RD_AP_OK) {
+	  fprintf (stderr, "read_encrypted: %s\n",
+		   krb_get_err_text(status));
+	  return -1;
+     }
+     *ret  = msg.app_data;
+     return  msg.app_length;
+}