1 files changed, 94 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/get_default_principal.c b/crypto/kerberosIV/lib/krb/get_default_principal.c
new file mode 100644
index 000000000000..3a111ea52e38
--- /dev/null
+++ b/crypto/kerberosIV/lib/krb/get_default_principal.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H�gskolan
+ * (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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the Kungliga Tekniska
+ *      H�gskolan and its contributors.
+ * 
+ * 4. 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 "krb_locl.h"
+
+RCSID("$Id: get_default_principal.c,v 1.10 1997/04/01 08:18:28 joda Exp $");
+
+int
+krb_get_default_principal(char *name, char *instance, char *realm)
+{
+  char *file;
+  int ret;
+
+  char *p;
+
+  if ((file = getenv("KRBTKFILE")) == NULL)
+      file = TKT_FILE;  
+  
+  ret = krb_get_tf_fullname(file, name, instance, realm);
+  if(ret == KSUCCESS)
+      return 0;
+
+  p = getenv("KRB4PRINCIPAL");
+  if(p && kname_parse(name, instance, realm, p) == KSUCCESS)
+      return 1;
+      
+
+#ifdef HAVE_PWD_H
+  {
+    struct passwd *pw;
+    pw = getpwuid(getuid());
+    if(pw == NULL){
+      return -1;
+    }
+
+    strcpy(name, pw->pw_name);
+    strcpy(instance, "");
+    krb_get_lrealm(realm, 1);
+
+    if(strcmp(name, "root") == 0){
+      p = NULL;
+#if defined(HAVE_GETLOGIN) && !defined(POSIX_GETLOGIN)
+      p = getlogin();
+#endif
+      if(p == NULL)
+	p = getenv("USER");
+      if(p == NULL)
+	p = getenv("LOGNAME");
+      if(p){
+	strncpy (name, p, ANAME_SZ);
+	name[ANAME_SZ - 1] = '\0';
+	strcpy(instance, "root");
+      }
+    }
+    return 1;
+  }
+#endif
+  return -1;
+}