QEMU wraps the socket functions in os-win32.h, but in commita9d8b3ec43
, the header inclusion was dropped, breaking libslirp on Windows. Wrap the missing functions. Rename the wrapped function with "slirp_" prefix and "_wrap" suffix, for consistency and to avoid a clash with existing function (such as "slirp_socket"). Fixes:a9d8b3ec
("slirp: replace remaining qemu headers dependency") Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20190212160953.29051-3-marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Tested-by: Howard Spoelstra
368 lines
8.2 KiB
C
368 lines
8.2 KiB
C
/*
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* util.c (mostly based on QEMU os-win32.c)
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2010-2016 Red Hat, Inc.
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*
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* QEMU library functions for win32 which are shared between QEMU and
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* the QEMU tools.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "util.h"
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#include <glib.h>
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#include <fcntl.h>
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#include <stdint.h>
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#if defined(_WIN32) && !defined(WITH_QEMU)
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int inet_aton(const char *cp, struct in_addr *ia)
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{
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uint32_t addr = inet_addr(cp);
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if (addr == 0xffffffff) {
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return 0;
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}
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ia->s_addr = addr;
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return 1;
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}
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#endif
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void slirp_set_nonblock(int fd)
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{
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#ifndef _WIN32
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int f;
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f = fcntl(fd, F_GETFL);
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assert(f != -1);
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f = fcntl(fd, F_SETFL, f | O_NONBLOCK);
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assert(f != -1);
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#else
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unsigned long opt = 1;
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ioctlsocket(fd, FIONBIO, &opt);
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#endif
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}
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static void slirp_set_cloexec(int fd)
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{
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#ifndef _WIN32
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int f;
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f = fcntl(fd, F_GETFD);
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assert(f != -1);
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f = fcntl(fd, F_SETFD, f | FD_CLOEXEC);
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assert(f != -1);
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#endif
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}
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/*
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* Opens a socket with FD_CLOEXEC set
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*/
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int slirp_socket(int domain, int type, int protocol)
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{
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int ret;
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#ifdef SOCK_CLOEXEC
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ret = socket(domain, type | SOCK_CLOEXEC, protocol);
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if (ret != -1 || errno != EINVAL) {
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return ret;
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}
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#endif
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ret = socket(domain, type, protocol);
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if (ret >= 0) {
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slirp_set_cloexec(ret);
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}
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return ret;
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}
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#ifdef _WIN32
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static int socket_error(void)
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{
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switch (WSAGetLastError()) {
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case 0:
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return 0;
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case WSAEINTR:
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return EINTR;
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case WSAEINVAL:
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return EINVAL;
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case WSA_INVALID_HANDLE:
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return EBADF;
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case WSA_NOT_ENOUGH_MEMORY:
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return ENOMEM;
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case WSA_INVALID_PARAMETER:
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return EINVAL;
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case WSAENAMETOOLONG:
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return ENAMETOOLONG;
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case WSAENOTEMPTY:
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return ENOTEMPTY;
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case WSAEWOULDBLOCK:
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/* not using EWOULDBLOCK as we don't want code to have
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* to check both EWOULDBLOCK and EAGAIN */
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return EAGAIN;
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case WSAEINPROGRESS:
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return EINPROGRESS;
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case WSAEALREADY:
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return EALREADY;
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case WSAENOTSOCK:
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return ENOTSOCK;
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case WSAEDESTADDRREQ:
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return EDESTADDRREQ;
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case WSAEMSGSIZE:
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return EMSGSIZE;
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case WSAEPROTOTYPE:
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return EPROTOTYPE;
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case WSAENOPROTOOPT:
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return ENOPROTOOPT;
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case WSAEPROTONOSUPPORT:
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return EPROTONOSUPPORT;
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case WSAEOPNOTSUPP:
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return EOPNOTSUPP;
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case WSAEAFNOSUPPORT:
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return EAFNOSUPPORT;
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case WSAEADDRINUSE:
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return EADDRINUSE;
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case WSAEADDRNOTAVAIL:
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return EADDRNOTAVAIL;
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case WSAENETDOWN:
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return ENETDOWN;
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case WSAENETUNREACH:
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return ENETUNREACH;
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case WSAENETRESET:
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return ENETRESET;
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case WSAECONNABORTED:
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return ECONNABORTED;
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case WSAECONNRESET:
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return ECONNRESET;
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case WSAENOBUFS:
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return ENOBUFS;
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case WSAEISCONN:
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return EISCONN;
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case WSAENOTCONN:
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return ENOTCONN;
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case WSAETIMEDOUT:
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return ETIMEDOUT;
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case WSAECONNREFUSED:
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return ECONNREFUSED;
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case WSAELOOP:
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return ELOOP;
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case WSAEHOSTUNREACH:
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return EHOSTUNREACH;
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default:
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return EIO;
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}
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}
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#undef ioctlsocket
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int slirp_ioctlsocket_wrap(int fd, int req, void *val)
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{
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int ret;
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ret = ioctlsocket(fd, req, val);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef closesocket
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int slirp_closesocket_wrap(int fd)
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{
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int ret;
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ret = closesocket(fd);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef connect
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int slirp_connect_wrap(int sockfd, const struct sockaddr *addr, int addrlen)
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{
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int ret;
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ret = connect(sockfd, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef listen
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int slirp_listen_wrap(int sockfd, int backlog)
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{
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int ret;
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ret = listen(sockfd, backlog);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef bind
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int slirp_bind_wrap(int sockfd, const struct sockaddr *addr, int addrlen)
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{
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int ret;
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ret = bind(sockfd, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef socket
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int slirp_socket_wrap(int domain, int type, int protocol)
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{
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int ret;
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ret = socket(domain, type, protocol);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef accept
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int slirp_accept_wrap(int sockfd, struct sockaddr *addr, int *addrlen)
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{
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int ret;
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ret = accept(sockfd, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef shutdown
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int slirp_shutdown_wrap(int sockfd, int how)
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{
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int ret;
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ret = shutdown(sockfd, how);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef getsockopt
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int slirp_getsockopt_wrap(int sockfd, int level, int optname,
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void *optval, int *optlen)
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{
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int ret;
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ret = getsockopt(sockfd, level, optname, optval, optlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef setsockopt
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int slirp_setsockopt_wrap(int sockfd, int level, int optname,
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const void *optval, int optlen)
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{
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int ret;
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ret = setsockopt(sockfd, level, optname, optval, optlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef getpeername
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int slirp_getpeername_wrap(int sockfd, struct sockaddr *addr,
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int *addrlen)
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{
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int ret;
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ret = getpeername(sockfd, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef getsockname
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int slirp_getsockname_wrap(int sockfd, struct sockaddr *addr,
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int *addrlen)
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{
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int ret;
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ret = getsockname(sockfd, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef send
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ssize_t slirp_send_wrap(int sockfd, const void *buf, size_t len, int flags)
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{
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int ret;
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ret = send(sockfd, buf, len, flags);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef sendto
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ssize_t slirp_sendto_wrap(int sockfd, const void *buf, size_t len, int flags,
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const struct sockaddr *addr, int addrlen)
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{
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int ret;
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ret = sendto(sockfd, buf, len, flags, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef recv
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ssize_t slirp_recv_wrap(int sockfd, void *buf, size_t len, int flags)
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{
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int ret;
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ret = recv(sockfd, buf, len, flags);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#undef recvfrom
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ssize_t slirp_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags,
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struct sockaddr *addr, int *addrlen)
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{
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int ret;
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ret = recvfrom(sockfd, buf, len, flags, addr, addrlen);
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if (ret < 0) {
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errno = socket_error();
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}
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return ret;
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}
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#endif /* WIN32 */
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void slirp_pstrcpy(char *buf, int buf_size, const char *str)
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{
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int c;
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char *q = buf;
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if (buf_size <= 0)
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return;
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for(;;) {
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c = *str++;
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if (c == 0 || q >= buf + buf_size - 1)
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break;
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*q++ = c;
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}
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*q = '\0';
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}
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