ossp-pkg/xds/setbuffer.c 1.2 -> 1.3
--- setbuffer.c 2001/07/09 17:20:56 1.2
+++ setbuffer.c 2001/07/09 19:19:37 1.3
@@ -25,9 +25,41 @@
SUCH DAMAGE.
*/
+#include "assert.h"
#include "internal.h"
-int xds_setbuffer(xds_t* xds, xds_scope_t flag, void* buffer, size_t buffer_len)
+int xds_setbuffer(xds_t* xds, xds_scope_t flag, void* buffer, size_t buffer_len)
{
- return XDS_ERR_INVALID_ARG;
+ /* Sanity checks. */
+
+ assert(xds != NULL);
+ assert(flag == XDS_GIFT || flag == XDS_LOAN);
+ assert((buffer != NULL && buffer_len != 0) || flag == XDS_GIFT);
+ if (xds == NULL || (flag != XDS_GIFT && flag != XDS_LOAN) ||
+ ((buffer == NULL || buffer_len == 0) && flag == XDS_LOAN))
+ return XDS_ERR_INVALID_ARG;
+
+ /* Free the old buffer if there is one. */
+
+ if (xds->buffer != NULL)
+ free(xds->buffer);
+ xds->buffer_len = 0;
+
+ if (flag == XDS_GIFT)
+ {
+ xds->buffer = buffer;
+ if (buffer == NULL)
+ xds->buffer_capacity = 0;
+ else
+ xds->buffer_capacity = buffer_len;
+ xds->we_own_buffer = (1==1);
+ }
+ else
+ {
+ xds->buffer = buffer;
+ xds->buffer_capacity = buffer_len;
+ xds->we_own_buffer = (1!=1);
+ }
+
+ return XDS_OK;
}
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