1 files changed, 153 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/rw.c b/crypto/kerberosIV/lib/krb/rw.c
new file mode 100644
index 0000000..88589c3
--- /dev/null
+++ b/crypto/kerberosIV/lib/krb/rw.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 1995, 1996, 1997, 1998 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.
+ */
+
+/* Almost all programs use these routines (implicitly) so it's a good
+ * place to put the version string. */
+
+#include "version.h"
+
+#include "krb_locl.h"
+
+RCSID("$Id: rw.c,v 1.12 1999/12/02 16:58:44 joda Exp $");
+
+int
+krb_get_int(void *f, u_int32_t *to, int size, int lsb)
+{
+    int i;
+    unsigned char *from = (unsigned char *)f;
+
+    *to = 0;
+    if(lsb){
+	for(i = size-1; i >= 0; i--)
+	    *to = (*to << 8) | from[i];
+    }else{
+	for(i = 0; i < size; i++)
+	    *to = (*to << 8) | from[i];
+    }
+    return size;
+}
+
+int
+krb_put_int(u_int32_t from, void *to, size_t rem, int size)
+{
+    int i;
+    unsigned char *p = (unsigned char *)to;
+
+    if (rem < size)
+	return -1;
+
+    for(i = size - 1; i >= 0; i--){
+	p[i] = from & 0xff;
+	from >>= 8;
+    }
+    return size;
+}
+
+
+/* addresses are always sent in network byte order */
+
+int
+krb_get_address(void *from, u_int32_t *to)
+{
+    unsigned char *p = (unsigned char*)from;
+    *to = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
+    return 4;
+}
+
+int
+krb_put_address(u_int32_t addr, void *to, size_t rem)
+{
+    return krb_put_int(ntohl(addr), to, rem, 4);
+}
+
+int
+krb_put_string(const char *from, void *to, size_t rem)
+{
+    size_t len = strlen(from) + 1;
+
+    if (rem < len)
+	return -1;
+    memcpy(to, from, len);
+    return len;
+}
+
+int
+krb_get_string(void *from, char *to, size_t to_size)
+{
+    strlcpy (to, (char *)from, to_size);
+    return strlen((char *)from) + 1;
+}
+
+int
+krb_get_nir(void *from, char *name, char *instance, char *realm)
+{
+    char *p = (char *)from;
+
+    p += krb_get_string(p, name, ANAME_SZ);
+    p += krb_get_string(p, instance, INST_SZ);
+    if(realm)
+	p += krb_get_string(p, realm, REALM_SZ);
+    return p - (char *)from;
+}
+
+int
+krb_put_nir(const char *name,
+	    const char *instance,
+	    const char *realm,
+	    void *to,
+	    size_t rem)
+{
+    char *p = (char *)to;
+    int tmp;
+    
+    tmp = krb_put_string(name, p, rem);
+    if (tmp < 0)
+	return tmp;
+    p += tmp;
+    rem -= tmp;
+
+    tmp = krb_put_string(instance, p, rem);
+    if (tmp < 0)
+	return tmp;
+    p += tmp;
+    rem -= tmp;
+    
+    if (realm) {
+	tmp = krb_put_string(realm, p, rem);
+	if (tmp < 0)
+	    return tmp;
+	p += tmp;
+	rem -= tmp;
+    }
+    return p - (char *)to;
+}