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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (C) 2015 STRATO AG.
*/
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libzfs.h>
#include <sys/resource.h>
#include <errno.h>
/*
* Check if libzfs works with more than 255 held file handles.
*/
/* ARGSUSED */
int
main(int argc, char **argv)
{
int i;
struct rlimit limit;
libzfs_handle_t *h;
limit.rlim_cur = 65535;
limit.rlim_max = 65535;
if (setrlimit(RLIMIT_NOFILE, &limit) != 0) {
(void) printf("many_fds: setrlimit() failed with errno=%d\n",
errno);
exit(1);
}
for (i = 0; i < 255; ++i) {
int fd = open("/dev/null", O_RDONLY);
if (fd == -1) {
(void) printf("open failed with errno=%d\n", errno);
return (1);
}
}
h = libzfs_init();
if (h != NULL) {
libzfs_fini(h);
return (0);
} else {
(void) printf("many_fds: libzfs_init() failed with errno=%d\n",
errno);
return (1);
}
}
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