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 #ifdef HAVE_SYS_PARAM_H
  39 #include <sys/param.h> /* for MIN/MAX macros */
  40 #endif
  41
  42 /* MIN,MAX macros */
  43 #ifndef MIN
  44 #define MIN(a,b) (((a)<(b))?(a):(b))
  45 #endif
  46 #ifndef MAX
  47 #define MAX(a,b) (((a)>(b))?(a):(b))
  48 #endif
  49
  50 /* gettimeofday() */
  51 #ifndef HAVE_GETTIMEOFDAY
  52
  53 #ifndef _TIMEVAL_DEFINED
  54 #define _TIMEVAL_DEFINED
  55
  56 struct timeval {
  57         long tv_sec;
  58         long tv_usec;
  59 };
  60 #endif /* _TIMEVAL_DEFINED */
  61
  62 struct timezone {
  63     int tz_minuteswest;
  64         int tz_dsttime;
  65 };
  66
  67 extern int gettimeofday(struct timeval *tv, struct timezone *tz);
  68 #endif
  69
  70 /* GNU extensions to the C library that may be missing on some systems */
  71 #ifndef HAVE_STRNDUP
  72 extern char* strndup(const char *s, size_t n);
  73 #endif /* HAVE_STRNDUP */
  74
  75 #ifndef HAVE_STRNLEN
  76 extern size_t strnlen(const char *s, size_t maxlen);
  77 #endif /* HAVE_STRNLEN */
  78
  79 #ifndef HAVE_USLEEP
  80 static __inline unsigned usleep(unsigned int usecs)
  81 {
  82 #ifdef _WIN32
  83         Sleep((usecs/1000));
  84         return 0;
  85 #else
  86 #error no usleep defined for your platform
  87 #endif
  88 }
  89 #endif /* HAVE_USLEEP */
  90
  91 /* Windows specific */
  92 #ifdef _WIN32
  93
  94 #define WIN32_LEAN_AND_MEAN
  95 #include <windows.h>
  96 #include <time.h>
  97
  98 #undef ERROR
  99
 100 #if IS_MINGW == 1
 101 static __inline unsigned char inb(unsigned short int port)
 102 {
 103         unsigned char _v;
 104         __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
 105         return _v;
 106 }
 107
 108 static __inline void outb(unsigned char value, unsigned short int port)
 109 {
 110         __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
 111 }
 112
 113 #endif /* IS_MINGW */
 114 #endif  /* _WIN32 */
 115
 116 /* generic socket functions for Windows and Posix */
 117 static __inline int write_socket( int handle, const void *buffer, unsigned int count )
 118 {
 119 #ifdef _WIN32
 120     return send(handle, buffer, count, 0);
 121 #else
 122     return write(handle, buffer, count);
 123 #endif
 124 }
 125
 126 static __inline int read_socket( int handle, void *buffer, unsigned int count )
 127 {
 128 #ifdef _WIN32
 129     return recv(handle, buffer, count, 0);
 130 #else
 131     return read(handle, buffer, count);
 132 #endif
 133 }
 134
 135 static __inline int close_socket(int sock)
 136 {
 137 #ifdef _WIN32
 138     return closesocket(sock);
 139 #else
 140     return close(sock);
 141 #endif
 142 }
 143
 144 static __inline void socket_nonblock(int fd)
 145 {
 146 #ifdef _WIN32
 147         long nonblock = 1;
 148         ioctlsocket(fd, FIONBIO, &nonblock );
 149 #else
 150         int oldopts = fcntl(fd, F_GETFL, 0);
 151         fcntl(fd, F_SETFL, oldopts | O_NONBLOCK);
 152 #endif
 153 }
 154
 155 #endif /* REPLACEMENTS_H */