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00024 #define _SVID_SOURCE
00025
00026 #include "config.h"
00027 #include "avformat.h"
00028 #include <unistd.h>
00029 #include <fcntl.h>
00030 #include <sys/time.h>
00031 #include "os_support.h"
00032
00033 #if CONFIG_NETWORK
00034 #if !HAVE_POLL_H
00035 #if HAVE_WINSOCK2_H
00036 #include <winsock2.h>
00037 #elif HAVE_SYS_SELECT_H
00038 #include <sys/select.h>
00039 #endif
00040 #endif
00041
00042 #include "network.h"
00043
00044 #if !HAVE_INET_ATON
00045 #include <stdlib.h>
00046 #include <strings.h>
00047
00048 int inet_aton (const char * str, struct in_addr * add)
00049 {
00050 unsigned int add1 = 0, add2 = 0, add3 = 0, add4 = 0;
00051
00052 if (sscanf(str, "%d.%d.%d.%d", &add1, &add2, &add3, &add4) != 4)
00053 return 0;
00054
00055 if (!add1 || (add1|add2|add3|add4) > 255) return 0;
00056
00057 add->s_addr=(add4<<24)+(add3<<16)+(add2<<8)+add1;
00058
00059 return 1;
00060 }
00061 #endif
00062
00063
00064 int resolve_host(struct in_addr *sin_addr, const char *hostname)
00065 {
00066 struct hostent *hp;
00067
00068 if (!inet_aton(hostname, sin_addr)) {
00069 hp = gethostbyname(hostname);
00070 if (!hp)
00071 return -1;
00072 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
00073 }
00074 return 0;
00075 }
00076
00077 int ff_socket_nonblock(int socket, int enable)
00078 {
00079 #if HAVE_WINSOCK2_H
00080 return ioctlsocket(socket, FIONBIO, &enable);
00081 #else
00082 if (enable)
00083 return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK);
00084 else
00085 return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK);
00086 #endif
00087 }
00088 #endif
00089
00090 #if CONFIG_FFSERVER
00091 #if !HAVE_POLL_H
00092 int poll(struct pollfd *fds, nfds_t numfds, int timeout)
00093 {
00094 fd_set read_set;
00095 fd_set write_set;
00096 fd_set exception_set;
00097 nfds_t i;
00098 int n;
00099 int rc;
00100
00101 #if HAVE_WINSOCK2_H
00102 if (numfds >= FD_SETSIZE) {
00103 errno = EINVAL;
00104 return -1;
00105 }
00106 #endif
00107
00108 FD_ZERO(&read_set);
00109 FD_ZERO(&write_set);
00110 FD_ZERO(&exception_set);
00111
00112 n = -1;
00113 for(i = 0; i < numfds; i++) {
00114 if (fds[i].fd < 0)
00115 continue;
00116 #if !HAVE_WINSOCK2_H
00117 if (fds[i].fd >= FD_SETSIZE) {
00118 errno = EINVAL;
00119 return -1;
00120 }
00121 #endif
00122
00123 if (fds[i].events & POLLIN) FD_SET(fds[i].fd, &read_set);
00124 if (fds[i].events & POLLOUT) FD_SET(fds[i].fd, &write_set);
00125 if (fds[i].events & POLLERR) FD_SET(fds[i].fd, &exception_set);
00126
00127 if (fds[i].fd > n)
00128 n = fds[i].fd;
00129 };
00130
00131 if (n == -1)
00132
00133 return 0;
00134
00135 if (timeout < 0)
00136 rc = select(n+1, &read_set, &write_set, &exception_set, NULL);
00137 else {
00138 struct timeval tv;
00139
00140 tv.tv_sec = timeout / 1000;
00141 tv.tv_usec = 1000 * (timeout % 1000);
00142 rc = select(n+1, &read_set, &write_set, &exception_set, &tv);
00143 };
00144
00145 if (rc < 0)
00146 return rc;
00147
00148 for(i = 0; i < (nfds_t) n; i++) {
00149 fds[i].revents = 0;
00150
00151 if (FD_ISSET(fds[i].fd, &read_set)) fds[i].revents |= POLLIN;
00152 if (FD_ISSET(fds[i].fd, &write_set)) fds[i].revents |= POLLOUT;
00153 if (FD_ISSET(fds[i].fd, &exception_set)) fds[i].revents |= POLLERR;
00154 };
00155
00156 return rc;
00157 }
00158 #endif
00159 #endif
00160