1 files changed, 126 insertions, 0 deletions
diff --git a/src/lib/gssapi/generic/util_buffer_set.c b/src/lib/gssapi/generic/util_buffer_set.c
new file mode 100644
index 0000000..edb61b8
--- /dev/null
+++ b/src/lib/gssapi/generic/util_buffer_set.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2008 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.
+ *
+ */
+
+#include "gssapiP_generic.h"
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <string.h>
+#include <errno.h>
+
+OM_uint32 generic_gss_create_empty_buffer_set
+	   (OM_uint32 * minor_status,
+	    gss_buffer_set_t *buffer_set)
+{
+    gss_buffer_set_t set;
+
+    set = (gss_buffer_set_desc *) malloc(sizeof(*set));
+    if (set == GSS_C_NO_BUFFER_SET) {
+	*minor_status = ENOMEM;
+	return GSS_S_FAILURE;
+    }
+
+    set->count = 0;
+    set->elements = NULL;
+
+    *buffer_set = set;
+
+    *minor_status = 0;
+    return GSS_S_COMPLETE;
+}
+
+OM_uint32 generic_gss_add_buffer_set_member
+	   (OM_uint32 * minor_status,
+	    const gss_buffer_t member_buffer,
+	    gss_buffer_set_t *buffer_set)
+{
+    gss_buffer_set_t set;
+    gss_buffer_t p;
+    OM_uint32 ret;
+
+    if (*buffer_set == GSS_C_NO_BUFFER_SET) {
+	ret = generic_gss_create_empty_buffer_set(minor_status,
+						  buffer_set);
+	if (ret) {
+	    return ret;
+	}
+    }
+
+    set = *buffer_set;
+    set->elements = (gss_buffer_desc *)realloc(set->elements,
+					       (set->count + 1) *
+						sizeof(gss_buffer_desc));
+    if (set->elements == NULL) {
+	*minor_status = ENOMEM;
+	return GSS_S_FAILURE;
+    }
+
+    p = &set->elements[set->count];
+
+    p->value = malloc(member_buffer->length);
+    if (p->value == NULL) {
+	*minor_status = ENOMEM;
+	return GSS_S_FAILURE;
+    }
+    memcpy(p->value, member_buffer->value, member_buffer->length);
+    p->length = member_buffer->length;
+
+    set->count++;
+
+    *minor_status = 0;
+    return GSS_S_COMPLETE;
+}
+
+OM_uint32 generic_gss_release_buffer_set
+	   (OM_uint32 * minor_status,
+	    gss_buffer_set_t *buffer_set)
+{
+    int i;
+    OM_uint32 minor;
+
+    *minor_status = 0;
+
+    if (*buffer_set == GSS_C_NO_BUFFER_SET) {
+	return GSS_S_COMPLETE;
+    }
+
+    for (i = 0; i < (*buffer_set)->count; i++) {
+	generic_gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
+    }
+
+    if ((*buffer_set)->elements != NULL) {
+	free((*buffer_set)->elements);
+	(*buffer_set)->elements = NULL;
+    }
+
+    (*buffer_set)->count = 0;
+
+    free(*buffer_set);
+    *buffer_set = GSS_C_NO_BUFFER_SET;
+
+    return GSS_S_COMPLETE;
+}
+