Files
oceanbase/deps/ussl-hook/ussl-deps.c
2023-07-12 05:12:18 +00:00

51 lines
1.5 KiB
C

/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#include "ussl-deps.h"
#include <dlfcn.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/stat.h>
static __attribute__((constructor(101))) void init_libc_func_ptr()
{
#define INIT_LIBC_FUNC_PTR(fname) libc_##fname = (typeof(libc_##fname))dlsym(RTLD_NEXT, #fname)
INIT_LIBC_FUNC_PTR(setsockopt);
INIT_LIBC_FUNC_PTR(listen);
INIT_LIBC_FUNC_PTR(connect);
INIT_LIBC_FUNC_PTR(accept);
INIT_LIBC_FUNC_PTR(accept4);
INIT_LIBC_FUNC_PTR(epoll_ctl);
INIT_LIBC_FUNC_PTR(read);
INIT_LIBC_FUNC_PTR(write);
INIT_LIBC_FUNC_PTR(close);
INIT_LIBC_FUNC_PTR(writev);
}
int make_socket_non_blocking(int fd)
{
int ret = 0, flags = 0;
flags = fcntl(fd, F_GETFL, 0);
if (-1 == flags) {
ussl_log_error("call fcntl with F_GETFL failed, errno:%d", errno);
ret = -1;
} else {
flags |= O_NONBLOCK;
if (-1 == fcntl(fd, F_SETFL, flags)) {
ussl_log_error("call fcntl with F_SETFL failed, errno:%d", errno);
ret = -1;
}
}
return ret;
}