1 files changed, 152 insertions, 0 deletions
diff --git a/src/lib/krb5/krb/libdef_parse.c b/src/lib/krb5/krb/libdef_parse.c
new file mode 100644
index 000000000000..05b912dd0518
--- /dev/null
+++ b/src/lib/krb5/krb/libdef_parse.c
@@ -0,0 +1,152 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* lib/krb5/krb/libdef_parse.c */
+/*
+ * Copyright 2009 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ */
+
+/*
+ * krb5int_libdefault_string()
+ * krb5int_libdefault_boolean()
+ *
+ */
+#include "k5-int.h"
+#include "int-proto.h"
+/* For _krb5_conf_boolean prototype */
+#include "os-proto.h"
+
+static const char *const conf_yes[] = {
+    "y", "yes", "true", "t", "1", "on",
+    0,
+};
+
+static const char *const conf_no[] = {
+    "n", "no", "false", "nil", "0", "off",
+    0,
+};
+
+int
+_krb5_conf_boolean(const char *s)
+{
+    const char *const *p;
+
+    for(p=conf_yes; *p; p++) {
+        if (!strcasecmp(*p,s))
+            return 1;
+    }
+
+    for(p=conf_no; *p; p++) {
+        if (!strcasecmp(*p,s))
+            return 0;
+    }
+
+    /* Default to "no" */
+    return 0;
+}
+
+krb5_error_code
+krb5int_libdefault_string(krb5_context context, const krb5_data *realm,
+                          const char *option, char **ret_value)
+{
+    profile_t profile;
+    const char *names[5];
+    char **nameval = NULL;
+    krb5_error_code retval;
+    char realmstr[1024];
+
+    if (realm->length > sizeof(realmstr)-1)
+        return(EINVAL);
+
+    strncpy(realmstr, realm->data, realm->length);
+    realmstr[realm->length] = '\0';
+
+    if (!context || (context->magic != KV5M_CONTEXT))
+        return KV5M_CONTEXT;
+
+    profile = context->profile;
+
+    names[0] = KRB5_CONF_LIBDEFAULTS;
+
+    /*
+     * Try number one:
+     *
+     * [libdefaults]
+     *          REALM = {
+     *                  option = <boolean>
+     *          }
+     */
+
+    names[1] = realmstr;
+    names[2] = option;
+    names[3] = 0;
+    retval = profile_get_values(profile, names, &nameval);
+    if (retval == 0 && nameval && nameval[0])
+        goto goodbye;
+
+
+    /*
+     * Try number two:
+     *
+     * [libdefaults]
+     *          option = <boolean>
+     */
+
+    names[1] = option;
+    names[2] = 0;
+    retval = profile_get_values(profile, names, &nameval);
+    if (retval == 0 && nameval && nameval[0])
+        goto goodbye;
+
+goodbye:
+    if (!nameval)
+        return(ENOENT);
+
+    if (!nameval[0]) {
+        retval = ENOENT;
+    } else {
+        *ret_value = strdup(nameval[0]);
+        if (!*ret_value)
+            retval = ENOMEM;
+    }
+
+    profile_free_list(nameval);
+
+    return retval;
+}
+
+krb5_error_code
+krb5int_libdefault_boolean(krb5_context context, const krb5_data *realm,
+                           const char *option, int *ret_value)
+{
+    char *string = NULL;
+    krb5_error_code retval;
+
+    retval = krb5int_libdefault_string(context, realm, option, &string);
+
+    if (retval)
+        return(retval);
+
+    *ret_value = _krb5_conf_boolean(string);
+    free(string);
+
+    return(0);
+}