1 files changed, 124 insertions, 0 deletions
diff --git a/lib/gssapi/mech/gss_buffer_set.c b/lib/gssapi/mech/gss_buffer_set.c
new file mode 100644
index 000000000000..48fb720ad09b
--- /dev/null
+++ b/lib/gssapi/mech/gss_buffer_set.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2004, PADL Software Pty Ltd.
+ * 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 PADL Software 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 PADL SOFTWARE 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 PADL SOFTWARE 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 "mech_locl.h"
+
+GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
+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;
+}
+
+GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
+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 = gss_create_empty_buffer_set(minor_status,
+					  buffer_set);
+	if (ret) {
+	    return ret;
+	}
+    }
+
+    set = *buffer_set;
+    set->elements = realloc(set->elements,
+			    (set->count + 1) * sizeof(set->elements[0]));
+    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;
+}
+
+GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
+gss_release_buffer_set(OM_uint32 * minor_status,
+		       gss_buffer_set_t *buffer_set)
+{
+    size_t 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++)
+	gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
+
+    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;
+}
+