mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
72d6b1bf1b
Patch by Tom Harper <d.thomas.harper <at> gmail.com> Originally committed as revision 11200 to svn://svn.ffmpeg.org/ffmpeg/trunk
156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/*
|
|
* Various utilities for ffmpeg system
|
|
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
|
|
* copyright (c) 2002 Francois Revol
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#include "config.h"
|
|
#include "avformat.h"
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include "os_support.h"
|
|
|
|
#ifdef CONFIG_NETWORK
|
|
#ifndef HAVE_SYS_POLL_H
|
|
#ifdef HAVE_WINSOCK2_H
|
|
#include <winsock2.h>
|
|
#else
|
|
#include <sys/select.h>
|
|
#endif
|
|
#endif
|
|
|
|
#include "network.h"
|
|
|
|
#if !defined(HAVE_INET_ATON)
|
|
#include <stdlib.h>
|
|
#include <strings.h>
|
|
|
|
int inet_aton (const char * str, struct in_addr * add)
|
|
{
|
|
unsigned int add1 = 0, add2 = 0, add3 = 0, add4 = 0;
|
|
|
|
if (sscanf(str, "%d.%d.%d.%d", &add1, &add2, &add3, &add4) != 4)
|
|
return 0;
|
|
|
|
if (!add1 || (add1|add2|add3|add4) > 255) return 0;
|
|
|
|
add->s_addr=(add4<<24)+(add3<<16)+(add2<<8)+add1;
|
|
|
|
return 1;
|
|
}
|
|
#endif /* !defined(HAVE_INET_ATON) */
|
|
|
|
/* resolve host with also IP address parsing */
|
|
int resolve_host(struct in_addr *sin_addr, const char *hostname)
|
|
{
|
|
struct hostent *hp;
|
|
|
|
if (!inet_aton(hostname, sin_addr)) {
|
|
hp = gethostbyname(hostname);
|
|
if (!hp)
|
|
return -1;
|
|
memcpy(sin_addr, hp->h_addr, sizeof(struct in_addr));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ff_socket_nonblock(int socket, int enable)
|
|
{
|
|
#ifdef HAVE_WINSOCK2_H
|
|
return ioctlsocket(socket, FIONBIO, &enable);
|
|
#else
|
|
if (enable)
|
|
return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK);
|
|
else
|
|
return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK);
|
|
#endif
|
|
}
|
|
#endif /* CONFIG_NETWORK */
|
|
|
|
#ifdef CONFIG_FFSERVER
|
|
#ifndef HAVE_SYS_POLL_H
|
|
int poll(struct pollfd *fds, nfds_t numfds, int timeout)
|
|
{
|
|
fd_set read_set;
|
|
fd_set write_set;
|
|
fd_set exception_set;
|
|
nfds_t i;
|
|
int n;
|
|
int rc;
|
|
|
|
#ifdef HAVE_WINSOCK2_H
|
|
if (numfds >= FD_SETSIZE) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
FD_ZERO(&read_set);
|
|
FD_ZERO(&write_set);
|
|
FD_ZERO(&exception_set);
|
|
|
|
n = -1;
|
|
for(i = 0; i < numfds; i++) {
|
|
if (fds[i].fd < 0)
|
|
continue;
|
|
#ifndef HAVE_WINSOCK2_H
|
|
if (fds[i].fd >= FD_SETSIZE) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
if (fds[i].events & POLLIN) FD_SET(fds[i].fd, &read_set);
|
|
if (fds[i].events & POLLOUT) FD_SET(fds[i].fd, &write_set);
|
|
if (fds[i].events & POLLERR) FD_SET(fds[i].fd, &exception_set);
|
|
|
|
if (fds[i].fd > n)
|
|
n = fds[i].fd;
|
|
};
|
|
|
|
if (n == -1)
|
|
/* Hey!? Nothing to poll, in fact!!! */
|
|
return 0;
|
|
|
|
if (timeout < 0)
|
|
rc = select(n+1, &read_set, &write_set, &exception_set, NULL);
|
|
else {
|
|
struct timeval tv;
|
|
|
|
tv.tv_sec = timeout / 1000;
|
|
tv.tv_usec = 1000 * (timeout % 1000);
|
|
rc = select(n+1, &read_set, &write_set, &exception_set, &tv);
|
|
};
|
|
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
for(i = 0; i < (nfds_t) n; i++) {
|
|
fds[i].revents = 0;
|
|
|
|
if (FD_ISSET(fds[i].fd, &read_set)) fds[i].revents |= POLLIN;
|
|
if (FD_ISSET(fds[i].fd, &write_set)) fds[i].revents |= POLLOUT;
|
|
if (FD_ISSET(fds[i].fd, &exception_set)) fds[i].revents |= POLLERR;
|
|
};
|
|
|
|
return rc;
|
|
}
|
|
#endif /* HAVE_SYS_POLL_H */
|
|
#endif /* CONFIG_FFSERVER */
|
|
|