guacamole-spice-protocol/src/common/guac_io.c

72 lines
2.0 KiB
C
Raw Normal View History

2014-01-06 23:53:22 +00:00
/*
* Copyright (C) 2013 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "config.h"
2014-01-07 00:00:07 +00:00
#include "guac_io.h"
2014-01-06 23:53:22 +00:00
#include <unistd.h>
int guac_common_write(int fd, void* buffer, int length) {
unsigned char* bytes = (unsigned char*) buffer;
while (length > 0) {
/* Attempt write */
int bytes_written = write(fd, bytes, length);
if (bytes_written < 0)
return bytes_written;
/* Update buffer */
length -= bytes_written;
bytes += bytes_written;
}
/* Success */
return length;
}
int guac_common_read(int fd, void* buffer, int length) {
unsigned char* bytes = (unsigned char*) buffer;
while (length > 0) {
/* Attempt read */
int bytes_read = read(fd, bytes, length);
if (bytes_read < 0)
return bytes_read;
/* Update buffer */
length -= bytes_read;
bytes += bytes_read;
}
/* Success */
return length;
}