MOUNT: when processing the mount response, check status before dereferencing data...
[deb_libnfs.git] / win32 / win32_compat.c
... / ...
CommitLineData
1/*
2Copyright (c) 2006 by Dan Kennedy.
3Copyright (c) 2006 by Juliusz Chroboczek.
4
5Permission is hereby granted, free of charge, to any person obtaining a copy
6of this software and associated documentation files (the "Software"), to deal
7in the Software without restriction, including without limitation the rights
8to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9copies of the Software, and to permit persons to whom the Software is
10furnished to do so, subject to the following conditions:
11
12The above copyright notice and this permission notice shall be included in
13all copies or substantial portions of the Software.
14
15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21THE SOFTWARE.
22*/
23
24#ifndef WIN32
25
26static int dummy ATTRIBUTE((unused));
27
28#else
29#include "win32_compat.h"
30#include <errno.h>
31#include <stdio.h>
32#include < time.h >
33
34#undef poll
35#undef socket
36#undef connect
37#undef accept
38#undef shutdown
39#undef getpeername
40#undef sleep
41#undef inet_aton
42#undef gettimeofday
43#undef stat
44#define assert(a)
45
46/* Windows needs this header file for the implementation of inet_aton() */
47#include <ctype.h>
48
49int win32_inet_pton(int af, const char * src, void * dst)
50{
51 struct sockaddr_in sa;
52 int len = sizeof(SOCKADDR);
53 int ret = -1;
54 int strLen = strlen(src) + 1;
55#ifdef UNICODE
56 wchar_t *srcNonConst = (wchar_t *)malloc(strLen*sizeof(wchar_t));
57 memset(srcNonConst, 0, strLen);
58 MultiByteToWideChar(CP_ACP, 0, src, -1, srcNonConst, strLen);
59#else
60 char *srcNonConst = (char *)malloc(strLen);
61 memset(srcNonConst, 0, strLen);
62 strncpy(srcNonConst, src, strLen);
63#endif
64
65 if( WSAStringToAddress(srcNonConst,af,NULL,(LPSOCKADDR)&sa,&len) == 0 )
66 {
67 ret = 1;
68 }
69 else
70 {
71 if( WSAGetLastError() == WSAEINVAL )
72 {
73 ret = -1;
74 }
75 }
76 free(srcNonConst);
77 memcpy(dst, &sa.sin_addr, sizeof(struct in_addr));
78 return ret;
79}
80
81int win32_poll(struct pollfd *fds, unsigned int nfds, int timo)
82{
83 struct timeval timeout, *toptr;
84 fd_set ifds, ofds, efds, *ip, *op;
85 unsigned int i;
86 int rc;
87
88 // Set up the file-descriptor sets in ifds, ofds and efds.
89 FD_ZERO(&ifds);
90 FD_ZERO(&ofds);
91 FD_ZERO(&efds);
92 for (i = 0, op = ip = 0; i < nfds; ++i)
93 {
94 fds[i].revents = 0;
95 if(fds[i].events & (POLLIN|POLLPRI))
96 {
97 ip = &ifds;
98 FD_SET(fds[i].fd, ip);
99 }
100 if(fds[i].events & POLLOUT)
101 {
102 op = &ofds;
103 FD_SET(fds[i].fd, op);
104 }
105 FD_SET(fds[i].fd, &efds);
106 }
107
108 // Set up the timeval structure for the timeout parameter
109 if(timo < 0)
110 {
111 toptr = 0;
112 }
113 else
114 {
115 toptr = &timeout;
116 timeout.tv_sec = timo / 1000;
117 timeout.tv_usec = (timo - timeout.tv_sec * 1000) * 1000;
118 }
119
120#ifdef DEBUG_POLL
121 printf("Entering select() sec=%ld usec=%ld ip=%lx op=%lx\n",
122 (long)timeout.tv_sec, (long)timeout.tv_usec, (long)ip, (long)op);
123#endif
124 rc = select(0, ip, op, &efds, toptr);
125#ifdef DEBUG_POLL
126 printf("Exiting select rc=%d\n", rc);
127#endif
128
129 if(rc <= 0)
130 return rc;
131
132 if(rc > 0)
133 {
134 for (i = 0; i < nfds; ++i)
135 {
136 int fd = fds[i].fd;
137 if(fds[i].events & (POLLIN|POLLPRI) && FD_ISSET(fd, &ifds))
138 fds[i].revents |= POLLIN;
139 if(fds[i].events & POLLOUT && FD_ISSET(fd, &ofds))
140 fds[i].revents |= POLLOUT;
141 if(FD_ISSET(fd, &efds)) // Some error was detected ... should be some way to know.
142 fds[i].revents |= POLLHUP;
143#ifdef DEBUG_POLL
144 printf("%d %d %d revent = %x\n",
145 FD_ISSET(fd, &ifds), FD_ISSET(fd, &ofds), FD_ISSET(fd, &efds),
146 fds[i].revents
147 );
148#endif
149 }
150 }
151 return rc;
152}
153
154#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
155 #define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
156#else
157 #define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
158#endif
159
160struct timezone
161{
162 int tz_minuteswest; /* minutes W of Greenwich */
163 int tz_dsttime; /* type of dst correction */
164};
165
166int win32_gettimeofday(struct timeval *tv, struct timezone *tz)
167{
168 FILETIME ft;
169 unsigned __int64 tmpres = 0;
170 static int tzflag;
171
172 if (NULL != tv)
173 {
174 GetSystemTimeAsFileTime(&ft);
175
176 tmpres |= ft.dwHighDateTime;
177 tmpres <<= 32;
178 tmpres |= ft.dwLowDateTime;
179
180 /*converting file time to unix epoch*/
181 tmpres -= DELTA_EPOCH_IN_MICROSECS;
182 tmpres /= 10; /*convert into microseconds*/
183 tv->tv_sec = (long)(tmpres / 1000000UL);
184 tv->tv_usec = (long)(tmpres % 1000000UL);
185 }
186
187 if (NULL != tz)
188 {
189 if (!tzflag)
190 {
191 _tzset();
192 tzflag++;
193 }
194 tz->tz_minuteswest = _timezone / 60;
195 tz->tz_dsttime = _daylight;
196 }
197
198 return 0;
199}
200
201#endif