src/helper/replacements.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifndef REPLACEMENTS_H
  21 #define REPLACEMENTS_H
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 /* include necessary headers for socket functionality */
  28 #ifdef _WIN32
  29 #include <winsock2.h>
  30 #else
  31 #include <sys/socket.h>
  32 #include <sys/poll.h>
  33 #include <netinet/in.h>
  34 #include <unistd.h>
  35 #include <fcntl.h>
  36 #endif
  37
  38 /* gettimeofday() */
  39 #ifndef HAVE_GETTIMEOFDAY
  40
  41 #ifndef _TIMEVAL_DEFINED
  42 #define _TIMEVAL_DEFINED
  43
  44 struct timeval {
  45         long tv_sec;
  46         long tv_usec;
  47 };
  48 #endif /* _TIMEVAL_DEFINED */
  49
  50 struct timezone {
  51     int tz_minuteswest;
  52         int tz_dsttime;
  53 };
  54
  55 extern int gettimeofday(struct timeval *tv, struct timezone *tz);
  56 #endif
  57
  58 /* GNU extensions to the C library that may be missing on some systems */
  59 #ifndef HAVE_STRNDUP
  60 extern char* strndup(const char *s, size_t n);
  61 #endif /* HAVE_STRNDUP */
  62
  63 #ifndef HAVE_STRNLEN
  64 extern size_t strnlen(const char *s, size_t maxlen);
  65 #endif /* HAVE_STRNLEN */
  66
  67 #ifndef HAVE_USLEEP
  68 static __inline unsigned usleep(unsigned int usecs)
  69 {
  70 #ifdef _WIN32
  71         Sleep((usecs/1000));
  72         return 0;
  73 #else
  74 #error no usleep defined for your platform
  75 #endif
  76 }
  77 #endif /* HAVE_USLEEP */
  78
  79 /* Windows specific */
  80 #ifdef _WIN32
  81
  82 #define WIN32_LEAN_AND_MEAN
  83 #include <windows.h>
  84 #include <time.h>
  85
  86 #undef ERROR
  87
  88 #if IS_MINGW == 1
  89 static __inline unsigned char inb(unsigned short int port)
  90 {
  91         unsigned char _v;
  92         __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
  93         return _v;
  94 }
  95
  96 static __inline void outb(unsigned char value, unsigned short int port)
  97 {
  98         __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
  99 }
 100
 101 #endif /* IS_MINGW */
 102 #endif  /* _WIN32 */
 103
 104 /* generic socket functions for Windows and Posix */
 105 static __inline int write_socket( int handle, const void *buffer, unsigned int count )
 106 {
 107 #ifdef _WIN32
 108     return send(handle, buffer, count, 0);
 109 #else
 110     return write(handle, buffer, count);
 111 #endif
 112 }
 113
 114 static __inline int read_socket( int handle, void *buffer, unsigned int count )
 115 {
 116 #ifdef _WIN32
 117     return recv(handle, buffer, count, 0);
 118 #else
 119     return read(handle, buffer, count);
 120 #endif
 121 }
 122
 123 static __inline int close_socket(int sock)
 124 {
 125 #ifdef _WIN32
 126     return closesocket(sock);
 127 #else
 128     return close(sock);
 129 #endif
 130 }
 131
 132 static __inline void socket_nonblock(int fd)
 133 {
 134 #ifdef _WIN32
 135         long nonblock = 1;
 136         ioctlsocket(fd, FIONBIO, &nonblock );
 137 #else
 138         int oldopts = fcntl(fd, F_GETFL, 0);
 139         fcntl(fd, F_SETFL, oldopts | O_NONBLOCK);
 140 #endif
 141 }
 142
 143 #endif /* REPLACEMENTS_H */