The first big step towards a complete upgrade to kth-krb4-0.9.7

1 files changed, 88 insertions, 0 deletions

diff --git a/kerberosIV/krb/realm_parse.c b/kerberosIV/krb/realm_parse.c
new file mode 100644
index 00000000000..8ce892c1835
--- /dev/null
+++ b/kerberosIV/krb/realm_parse.c
@@ -0,0 +1,88 @@
+/* $KTH: realm_parse.c,v 1.10 1997/06/01 03:14:50 assar Exp $ */
+
+/*
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the Kungliga Tekniska
+ *      Högskolan 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"
+
+static int
+realm_parse(char *realm, int length, const char *file)
+{
+    FILE *F;
+    char tr[128];
+    char *p;
+    
+    if ((F = fopen(file,"r")) == NULL)
+	return -1;
+    
+    while(fgets(tr, sizeof(tr), F)){
+	char *unused = NULL;
+	p = strtok_r(tr, " \t\n\r", &unused);
+	if(p && strcasecmp(p, realm) == 0){
+	    fclose(F);
+	    strncpy(realm, p, length);
+	    return 0;
+	}
+    }
+    fclose(F);
+    return -1;
+}
+
+static const char *const files[] = KRB_CNF_FILES;
+
+int
+krb_realm_parse(char *realm, int length)
+{
+    int i;
+  
+    const char *dir = getenv("KRBCONFDIR");
+
+    /* First try user specified file */
+    if (dir != 0) {
+      char fname[MAXPATHLEN];
+
+      if(k_concat(fname, sizeof(fname), dir, "/krb.conf", NULL) == 0)
+	  if (realm_parse(realm, length, fname) == 0)
+	      return 0;
+    }
+
+    for (i = 0; files[i] != NULL; i++)
+	if (realm_parse(realm, length, files[i]) == 0)
+	    return 0;
+    return -1;
+}