/* 
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */

#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>

/* Unlike the glibc version, this ensures that name is null-terminated.*/
int __gethostname(char *name, size_t namelen)
{
	int n, fd;
	char buf[128];

	fd = open("/dev/sysname", O_RDONLY);
	if (fd < 0)
		return -1;
	n = read(fd, buf, sizeof(buf) - 1);
	close(fd);
	if (n <= 0)
		return -1;
	buf[n] = 0;
	strncpy(name, buf, namelen);
	name[namelen - 1] = 0;
	return 0;
}
weak_alias(__gethostname, gethostname)