Extract common code from wbc_util.c

1 files changed, 97 insertions, 0 deletions

diff --git a/nsswitch/libwbclient/wbc_util_common.c b/nsswitch/libwbclient/wbc_util_common.c
new file mode 100644
index 00000000000..ab226aa5b03
--- /dev/null
+++ b/nsswitch/libwbclient/wbc_util_common.c
@@ -0,0 +1,97 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Winbind client asynchronous API, utility functions
+
+   Copyright (C) Gerald (Jerry) Carter 2007-2008
+
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Required Headers */
+
+#include "replace.h"
+#include "libwbclient.h"
+#include "../winbind_client.h"
+
+static void wbcNamedBlobDestructor(void *ptr)
+{
+	struct wbcNamedBlob *b = (struct wbcNamedBlob *)ptr;
+
+	while (b->name != NULL) {
+		free(discard_const_p(char, b->name));
+		free(b->blob.data);
+		b += 1;
+	}
+}
+
+/* Initialize a named blob and add to list of blobs */
+wbcErr wbcAddNamedBlob(size_t *num_blobs,
+		       struct wbcNamedBlob **pblobs,
+		       const char *name,
+		       uint32_t flags,
+		       uint8_t *data,
+		       size_t length)
+{
+	wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
+	struct wbcNamedBlob *blobs, *blob;
+
+	if (name == NULL) {
+		return WBC_ERR_INVALID_PARAM;
+	}
+
+	/*
+	 * Overallocate the b->name==NULL terminator for
+	 * wbcNamedBlobDestructor
+	 */
+	blobs = (struct wbcNamedBlob *)wbcAllocateMemory(
+		*num_blobs + 2, sizeof(struct wbcNamedBlob),
+		wbcNamedBlobDestructor);
+
+	if (blobs == NULL) {
+		return WBC_ERR_NO_MEMORY;
+	}
+
+	if (*pblobs != NULL) {
+		struct wbcNamedBlob *old = *pblobs;
+		memcpy(blobs, old, sizeof(struct wbcNamedBlob) * (*num_blobs));
+		if (*num_blobs != 0) {
+			/* end indicator for wbcNamedBlobDestructor */
+			old[0].name = NULL;
+		}
+		wbcFreeMemory(old);
+	}
+	*pblobs = blobs;
+
+	blob = &blobs[*num_blobs];
+
+	blob->name = strdup(name);
+	BAIL_ON_PTR_ERROR(blob->name, wbc_status);
+	blob->flags = flags;
+
+	blob->blob.length = length;
+	blob->blob.data	= (uint8_t *)malloc(length);
+	BAIL_ON_PTR_ERROR(blob->blob.data, wbc_status);
+	memcpy(blob->blob.data, data, length);
+
+	*num_blobs += 1;
+	*pblobs = blobs;
+	blobs = NULL;
+
+	wbc_status = WBC_ERR_SUCCESS;
+done:
+	wbcFreeMemory(blobs);
+	return wbc_status;
+}