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  12 >Input and Output [POSIX Section 6]</TITLE
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  65 >Chapter 31. POSIX Standard Support</TD
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  84 ><A
  85 NAME="POSIX-INPUT-AND-OUTPUT">Input and Output &#0091;POSIX Section 6&#0093;</H1
  86 ><DIV
  87 CLASS="SECT2"
  88 ><H2
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  90 ><A
  91 NAME="AEN13062">Functions Implemented</H2
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 100 >int dup( int fd );
 101 int dup2( int fd, int fd2 );
 102 int close(int fd);
 103 ssize&#0095;t   read(int fd, void &#0042;buf, size&#0095;t nbyte);
 104 ssize&#0095;t   write(int fd, const void &#0042;buf, size&#0095;t nbyte);
 105 int fcntl( int fd, int cmd, ... );
 106 off&#0095;t lseek(int fd, off&#0095;t offset, int whence);
 107 int fsync( int fd );
 108 int fdatasync( int fd );</PRE
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 113 ><DIV
 114 CLASS="SECT2"
 115 ><H2
 116 CLASS="SECT2"
 117 ><A
 118 NAME="AEN13065">Functions Omitted</H2
 119 ><TABLE
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 126 CLASS="SCREEN"
 127 >int pipe( int fildes&#0091;2&#0093; );
 128 int aio&#0095;read( struct aiocb &#0042;aiocbp );                               &#0047;&#0047; TBA
 129 int aio&#0095;write( struct aiocb &#0042;aiocbp );                              &#0047;&#0047; TBA
 130 int lio&#0095;listio( int mode, struct aiocb &#0042;const list&#0091;&#0093;,
 131                 int nent, struct sigevent &#0042;sig);          &#0047;&#0047; TBA
 132 int aio&#0095;error( struct aiocb &#0042;aiocbp );                              &#0047;&#0047; TBA
 133 int aio&#0095;return( struct aiocb &#0042;aiocbp );                             &#0047;&#0047; TBA
 134 int aio&#0095;cancel( int fd, struct aiocb &#0042;aiocbp );                     &#0047;&#0047; TBA
 135 int aio&#0095;suspend( const struct aiocb &#0042;const list&#0091;&#0093;,
 136                  int nent, const struct timespec &#0042;timeout );      &#0047;&#0047; TBA
 137 int aio&#0095;fsync( int op, struct aiocb &#0042;aiocbp );
 138 &#0047;&#0047; TBA</PRE
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 143 ><DIV
 144 CLASS="SECT2"
 145 ><H2
 146 CLASS="SECT2"
 147 ><A
 148 NAME="AEN13068">Notes</H2
 149 ><P
 150 ></P
 151 ><UL
 152 ><LI
 153 ><P
 154 >           Only the <SPAN
 155 CLASS="emphasis"
 156 ><I
 157 CLASS="EMPHASIS"
 158 >F&#0095;DUPFD</I
 159 ></SPAN
 160 > command
 161             of <SPAN
 162 CLASS="emphasis"
 163 ><I
 164 CLASS="EMPHASIS"
 165 >fcntl()</I
 166 ></SPAN
 167 > is currently implemented.
 168             </P
 169 ></LI
 170 ><LI
 171 ><P
 172 >           Most of the functionality of these functions depends on
 173             the underlying filesystem.
 174             </P
 175 ></LI
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