winsock.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:9k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * winsock.c: POSIX replacements for Winsock
- *****************************************************************************
- * Copyright © 2006-2008 Rémi Denis-Courmont
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <errno.h>
- #include <vlc_network.h>
- #ifndef WSA_QOS_EUNKNOWNPSOBJ
- # define WSA_QOS_EUNKNOWNPSOBJ 11024L
- #endif
- typedef struct
- {
- int code;
- const char *msg;
- } wsaerrmsg_t;
- static const wsaerrmsg_t wsaerrmsg[] =
- {
- { WSA_INVALID_HANDLE, "Specified event object handle is invalid" },
- { WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available" },
- { WSA_INVALID_PARAMETER, "One or more parameters are invalid" },
- { WSA_OPERATION_ABORTED, "Overlapped operation aborted" },
- { WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state" },
- { WSA_IO_PENDING, "Overlapped operations will complete later" },
- { WSAEINTR, "Interrupted function call" },
- { WSAEBADF, "File handle is not valid" },
- { WSAEACCES, "Access denied" },
- { WSAEFAULT, "Invalid memory address" },
- { WSAEINVAL, "Invalid argument" },
- { WSAEMFILE, "Too many open sockets" },
- { WSAEWOULDBLOCK, "Resource temporarily unavailable" },
- { WSAEINPROGRESS, "Operation now in progress" },
- { WSAEALREADY, "Operation already in progress" },
- { WSAENOTSOCK, "Non-socket handle specified" },
- { WSAEDESTADDRREQ, "Missing destination address" },
- { WSAEMSGSIZE, "Message too long" },
- { WSAEPROTOTYPE, "Protocol wrong type for socket", },
- { WSAENOPROTOOPT, "Option not supported by protocol" },
- { WSAEPROTONOSUPPORT, "Protocol not supported" },
- { WSAESOCKTNOSUPPORT, "Socket type not supported" },
- { WSAEOPNOTSUPP, "Operation not supported" },
- { WSAEPFNOSUPPORT, "Protocol family not supported" },
- { WSAEAFNOSUPPORT, "Address family not supported by protocol family" },
- { WSAEADDRINUSE, "Address already in use" },
- { WSAEADDRNOTAVAIL, "Cannot assign requested address" },
- { WSAENETDOWN, "Network is down" },
- { WSAENETUNREACH, "Network unreachable" },
- { WSAENETRESET, "Network dropped connection on reset" },
- { WSAECONNABORTED, "Software caused connection abort" },
- { WSAECONNRESET, "Connection reset by peer" },
- { WSAENOBUFS, "No buffer space available (not enough memory)" },
- { WSAEISCONN, "Socket is already connected" },
- { WSAENOTCONN, "Socket is not connected" },
- { WSAESHUTDOWN, "Cannot send after socket shutdown" },
- { WSAETOOMANYREFS, "Too many references" },
- { WSAETIMEDOUT, "Connection timed out" },
- { WSAECONNREFUSED, "Connection refused by peer" },
- { WSAELOOP, "Cannot translate name" },
- { WSAENAMETOOLONG, "Name too long" },
- { WSAEHOSTDOWN, "Remote host is down" },
- { WSAEHOSTUNREACH, "No route to host (unreachable)" },
- { WSAENOTEMPTY, "Directory not empty" },
- { WSAEPROCLIM, "Too many processes" },
- { WSAEUSERS, "User quota exceeded" },
- { WSAEDQUOT, "Disk quota exceeded" },
- { WSAESTALE, "Stale file handle reference" },
- { WSAEREMOTE, "Item is remote", },
- { WSASYSNOTREADY, "Network subsystem is unavailable (network stack not ready)" },
- { WSAVERNOTSUPPORTED, "Winsock.dll version out of range (network stack version not supported" },
- { WSANOTINITIALISED, "Network not initialized" },
- { WSAEDISCON, "Graceful shutdown in progress" },
- { WSAENOMORE, "No more results" },
- { WSAECANCELLED, "Call has been cancelled" },
- { WSAEINVALIDPROCTABLE, "Procedure call table is invalid" },
- { WSAEINVALIDPROVIDER, "Service provider is invalid" },
- { WSAEPROVIDERFAILEDINIT, "Service provider failed to initialize" },
- { WSASYSCALLFAILURE, "System call failure" },
- { WSASERVICE_NOT_FOUND, "Service not found" },
- { WSATYPE_NOT_FOUND, "Class type not found" },
- { WSA_E_NO_MORE, "No more results" },
- { WSA_E_CANCELLED, "Call was cancelled" },
- { WSAEREFUSED, "Database query was refused" },
- { WSAHOST_NOT_FOUND, "Host not found" },
- { WSATRY_AGAIN, "Nonauthoritative host not found (temporary hostname error)" },
- { WSANO_RECOVERY, "Non-recoverable hostname error" },
- { WSANO_DATA, "Valid name, no data record of requested type" },
- { WSA_QOS_RECEIVERS, "QOS receivers" },
- { WSA_QOS_SENDERS, "QOS senders" },
- { WSA_QOS_NO_SENDERS, "No QOS senders" },
- { WSA_QOS_NO_RECEIVERS, "QOS no receivers" },
- { WSA_QOS_REQUEST_CONFIRMED, "QOS request confirmed" },
- { WSA_QOS_ADMISSION_FAILURE, "QOS admission error" },
- { WSA_QOS_POLICY_FAILURE, "QOS policy failure" },
- { WSA_QOS_BAD_STYLE, "QOS bad style" },
- { WSA_QOS_BAD_OBJECT, "QOS bad object" },
- { WSA_QOS_TRAFFIC_CTRL_ERROR, "QOS traffic control error" },
- { WSA_QOS_GENERIC_ERROR, "QOS generic error" },
- { WSA_QOS_ESERVICETYPE, "QOS service type error" },
- { WSA_QOS_EFLOWSPEC, "QOS flowspec error" },
- { WSA_QOS_EPROVSPECBUF, "Invalid QOS provider buffer" },
- { WSA_QOS_EFILTERSTYLE, "Invalid QOS filter style" },
- { WSA_QOS_EFILTERTYPE, "Invalid QOS filter type" },
- { WSA_QOS_EFILTERCOUNT, "Incorrect QOS filter count" },
- { WSA_QOS_EOBJLENGTH, "Invalid QOS object length" },
- { WSA_QOS_EFLOWCOUNT, "Incorrect QOS flow count" },
- { WSA_QOS_EUNKNOWNPSOBJ, "Unrecognized QOS object" },
- { WSA_QOS_EPOLICYOBJ, "Invalid QOS policy object" },
- { WSA_QOS_EFLOWDESC, "Invalid QOS flow descriptor" },
- { WSA_QOS_EPSFLOWSPEC, "Invalid QOS provider-specific flowspec" },
- { WSA_QOS_EPSFILTERSPEC, "Invalid QOS provider-specific filterspec" },
- { WSA_QOS_ESDMODEOBJ, "Invalid QOS shape discard mode object" },
- { WSA_QOS_ESHAPERATEOBJ, "Invalid QOS shaping rate object" },
- { WSA_QOS_RESERVED_PETYPE, "Reserved policy QOS element type" },
- { 0, NULL }
- /* Winsock2 error codes are missing, they "never" occur */
- };
- const char *net_strerror( int value )
- {
- /* There doesn't seem to be any portable error message generation for
- * Winsock errors. Some old versions had s_error, but it appears to be
- * gone, and is not documented.
- */
- for( const wsaerrmsg_t *e = wsaerrmsg; e->msg != NULL; e++ )
- if( e->code == value )
- return e->msg;
- /* Remember to update src/misc/messages.c if you change this one */
- return "Unknown network stack error";
- }
- #if 0
- ssize_t vlc_sendmsg (int s, struct msghdr *hdr, int flags)
- {
- /* WSASendMsg would be more straightforward, and would support ancilliary
- * data, but it's not yet in mingw32. */
- if ((hdr->msg_iovlen > 100) || (hdr->msg_controllen > 0))
- {
- errno = EINVAL;
- return -1;
- }
- WSABUF buf[hdr->msg_iovlen];
- for (size_t i = 0; i < sizeof (buf) / sizeof (buf[0]); i++)
- buf[i].buf = hdr->msg_iov[i].iov_base,
- buf[i].len = hdr->msg_iov[i].iov_len;
- DWORD sent;
- if (WSASendTo (s, buf, sizeof (buf) / sizeof (buf[0]), &sent, flags,
- hdr->msg_name, hdr->msg_namelen, NULL, NULL) == 0)
- return sent;
- return -1;
- }
- ssize_t vlc_recvmsg (int s, struct msghdr *hdr, int flags)
- {
- /* WSARecvMsg would be more straightforward, and would support ancilliary
- * data, but it's not yet in mingw32. */
- if (hdr->msg_iovlen > 100)
- {
- errno = EINVAL;
- return -1;
- }
- WSABUF buf[hdr->msg_iovlen];
- for (size_t i = 0; i < sizeof (buf) / sizeof (buf[0]); i++)
- buf[i].buf = hdr->msg_iov[i].iov_base,
- buf[i].len = hdr->msg_iov[i].iov_len;
- DWORD recvd, dwFlags = flags;
- INT fromlen = hdr->msg_namelen;
- hdr->msg_controllen = 0;
- hdr->msg_flags = 0;
- int ret = WSARecvFrom (s, buf, sizeof (buf) / sizeof (buf[0]), &recvd,
- &dwFlags, hdr->msg_name, &fromlen, NULL, NULL);
- hdr->msg_namelen = fromlen;
- hdr->msg_flags = dwFlags;
- if (ret == 0)
- return recvd;
- #ifdef MSG_TRUNC
- if (WSAGetLastError() == WSAEMSGSIZE)
- {
- hdr->msg_flags |= MSG_TRUNC;
- return recvd;
- }
- #else
- # warning Out-of-date Winsock header files!
- #endif
- return -1;
- }
- #endif