mirror of
https://github.com/curl/curl.git
synced 2024-12-21 06:50:10 +08:00
a96c7529eb
Coverity found CID 1461718: Integer handling issues (CONSTANT_EXPRESSION_RESULT) "timeout_ms > 9223372036854775807L" is always false regardless of the values of its operands. This occurs as the logical second operand of "||". Closes #5240
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
#ifndef HEADER_CURL_SELECT_H
|
|
#define HEADER_CURL_SELECT_H
|
|
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at https://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#ifdef HAVE_POLL_H
|
|
#include <poll.h>
|
|
#elif defined(HAVE_SYS_POLL_H)
|
|
#include <sys/poll.h>
|
|
#endif
|
|
|
|
/*
|
|
* Definition of pollfd struct and constants for platforms lacking them.
|
|
*/
|
|
|
|
#if !defined(HAVE_STRUCT_POLLFD) && \
|
|
!defined(HAVE_SYS_POLL_H) && \
|
|
!defined(HAVE_POLL_H) && \
|
|
!defined(POLLIN)
|
|
|
|
#define POLLIN 0x01
|
|
#define POLLPRI 0x02
|
|
#define POLLOUT 0x04
|
|
#define POLLERR 0x08
|
|
#define POLLHUP 0x10
|
|
#define POLLNVAL 0x20
|
|
|
|
struct pollfd
|
|
{
|
|
curl_socket_t fd;
|
|
short events;
|
|
short revents;
|
|
};
|
|
|
|
#endif
|
|
|
|
#ifndef POLLRDNORM
|
|
#define POLLRDNORM POLLIN
|
|
#endif
|
|
|
|
#ifndef POLLWRNORM
|
|
#define POLLWRNORM POLLOUT
|
|
#endif
|
|
|
|
#ifndef POLLRDBAND
|
|
#define POLLRDBAND POLLPRI
|
|
#endif
|
|
|
|
/* there are three CSELECT defines that are defined in the public header that
|
|
are exposed to users, but this *IN2 bit is only ever used internally and
|
|
therefore defined here */
|
|
#define CURL_CSELECT_IN2 (CURL_CSELECT_ERR << 1)
|
|
|
|
int Curl_select(curl_socket_t maxfd,
|
|
fd_set *fds_read,
|
|
fd_set *fds_write,
|
|
fd_set *fds_err,
|
|
time_t timeout_ms);
|
|
|
|
int Curl_socket_check(curl_socket_t readfd, curl_socket_t readfd2,
|
|
curl_socket_t writefd,
|
|
timediff_t timeout_ms);
|
|
#define SOCKET_READABLE(x,z) \
|
|
Curl_socket_check(x, CURL_SOCKET_BAD, CURL_SOCKET_BAD, z)
|
|
#define SOCKET_WRITABLE(x,z) \
|
|
Curl_socket_check(CURL_SOCKET_BAD, CURL_SOCKET_BAD, x, z)
|
|
|
|
int Curl_poll(struct pollfd ufds[], unsigned int nfds, int timeout_ms);
|
|
int Curl_wait_ms(int timeout_ms);
|
|
|
|
#ifdef TPF
|
|
int tpf_select_libcurl(int maxfds, fd_set* reads, fd_set* writes,
|
|
fd_set* excepts, struct timeval* tv);
|
|
#endif
|
|
|
|
/* Winsock and TPF sockets are not in range [0..FD_SETSIZE-1], which
|
|
unfortunately makes it impossible for us to easily check if they're valid
|
|
*/
|
|
#if defined(USE_WINSOCK) || defined(TPF)
|
|
#define VALID_SOCK(x) 1
|
|
#define VERIFY_SOCK(x) Curl_nop_stmt
|
|
#else
|
|
#define VALID_SOCK(s) (((s) >= 0) && ((s) < FD_SETSIZE))
|
|
#define VERIFY_SOCK(x) do { \
|
|
if(!VALID_SOCK(x)) { \
|
|
SET_SOCKERRNO(EINVAL); \
|
|
return -1; \
|
|
} \
|
|
} while(0)
|
|
#endif
|
|
|
|
#endif /* HEADER_CURL_SELECT_H */
|