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/*
* util.c (mostly based on QEMU os-win32.c)
*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2010-2016 Red Hat, Inc.
*
* QEMU library functions for win32 which are shared between QEMU and
* the QEMU tools.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "util.h"
#include <glib.h>
#include <fcntl.h>
#include <stdint.h>
#if defined(_WIN32) && !defined(WITH_QEMU)
int inet_aton(const char *cp, struct in_addr *ia)
{
uint32_t addr = inet_addr(cp);
if (addr == 0xffffffff) {
return 0;
}
ia->s_addr = addr;
return 1;
}
#endif
void slirp_set_nonblock(int fd)
{
#ifndef _WIN32
int f;
f = fcntl(fd, F_GETFL);
assert(f != -1);
f = fcntl(fd, F_SETFL, f | O_NONBLOCK);
assert(f != -1);
#else
unsigned long opt = 1;
ioctlsocket(fd, FIONBIO, &opt);
#endif
}
static void slirp_set_cloexec(int fd)
{
#ifndef _WIN32
int f;
f = fcntl(fd, F_GETFD);
assert(f != -1);
f = fcntl(fd, F_SETFD, f | FD_CLOEXEC);
assert(f != -1);
#endif
}
/*
* Opens a socket with FD_CLOEXEC set
*/
int slirp_socket(int domain, int type, int protocol)
{
int ret;
#ifdef SOCK_CLOEXEC
ret = socket(domain, type | SOCK_CLOEXEC, protocol);
if (ret != -1 || errno != EINVAL) {
return ret;
}
#endif
ret = socket(domain, type, protocol);
if (ret >= 0) {
slirp_set_cloexec(ret);
}
return ret;
}
#ifdef _WIN32
static int socket_error(void)
{
switch (WSAGetLastError()) {
case 0:
return 0;
case WSAEINTR:
return EINTR;
case WSAEINVAL:
return EINVAL;
case WSA_INVALID_HANDLE:
return EBADF;
case WSA_NOT_ENOUGH_MEMORY:
return ENOMEM;
case WSA_INVALID_PARAMETER:
return EINVAL;
case WSAENAMETOOLONG:
return ENAMETOOLONG;
case WSAENOTEMPTY:
return ENOTEMPTY;
case WSAEWOULDBLOCK:
/* not using EWOULDBLOCK as we don't want code to have
* to check both EWOULDBLOCK and EAGAIN */
return EAGAIN;
case WSAEINPROGRESS:
return EINPROGRESS;
case WSAEALREADY:
return EALREADY;
case WSAENOTSOCK:
return ENOTSOCK;
case WSAEDESTADDRREQ:
return EDESTADDRREQ;
case WSAEMSGSIZE:
return EMSGSIZE;
case WSAEPROTOTYPE:
return EPROTOTYPE;
case WSAENOPROTOOPT:
return ENOPROTOOPT;
case WSAEPROTONOSUPPORT:
return EPROTONOSUPPORT;
case WSAEOPNOTSUPP:
return EOPNOTSUPP;
case WSAEAFNOSUPPORT:
return EAFNOSUPPORT;
case WSAEADDRINUSE:
return EADDRINUSE;
case WSAEADDRNOTAVAIL:
return EADDRNOTAVAIL;
case WSAENETDOWN:
return ENETDOWN;
case WSAENETUNREACH:
return ENETUNREACH;
case WSAENETRESET:
return ENETRESET;
case WSAECONNABORTED:
return ECONNABORTED;
case WSAECONNRESET:
return ECONNRESET;
case WSAENOBUFS:
return ENOBUFS;
case WSAEISCONN:
return EISCONN;
case WSAENOTCONN:
return ENOTCONN;
case WSAETIMEDOUT:
return ETIMEDOUT;
case WSAECONNREFUSED:
return ECONNREFUSED;
case WSAELOOP:
return ELOOP;
case WSAEHOSTUNREACH:
return EHOSTUNREACH;
default:
return EIO;
}
}
#undef ioctlsocket
int slirp_ioctlsocket(int fd, int req, void *val)
{
int ret;
ret = ioctlsocket(fd, req, val);
if (ret < 0) {
errno = socket_error();
}
return ret;
}
#undef closesocket
int slirp_closesocket(int fd)
{
int ret;
ret = closesocket(fd);
if (ret < 0) {
errno = socket_error();
}
return ret;
}
#endif /* WIN32 */
void slirp_pstrcpy(char *buf, int buf_size, const char *str)
{
int c;
char *q = buf;
if (buf_size <= 0)
return;
for(;;) {
c = *str++;
if (c == 0 || q >= buf + buf_size - 1)
break;
*q++ = c;
}
*q = '\0';
}
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