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Diff for /src/lib/libc/stdio/fopen.3 between versions 1.2 and 1.3

version 1.2, 2003/06/17 04:26:45 version 1.3, 2004/06/08 00:45:00
Line 35 Line 35
 .\"  .\"
 .\"     @(#)fopen.3     8.1 (Berkeley) 6/4/93  .\"     @(#)fopen.3     8.1 (Berkeley) 6/4/93
 .\" $FreeBSD: src/lib/libc/stdio/fopen.3,v 1.7.2.6 2001/12/14 18:33:57 ru Exp $  .\" $FreeBSD: src/lib/libc/stdio/fopen.3,v 1.7.2.6 2001/12/14 18:33:57 ru Exp $
 .\" $DragonFly: src/lib/libc/stdio/fopen.3,v 1.1 2003/06/16 04:33:23 dillon Exp $  .\" $DragonFly$
 .\"  .\"
 .Dd June 4, 1993  .Dd June 08, 2004
 .Dt FOPEN 3  .Dt FOPEN 3
 .Os  .Os
 .Sh NAME  .Sh NAME
Line 138  The Line 138  The
 .Fn fdopen  .Fn fdopen
 function associates a stream with the existing file descriptor,  function associates a stream with the existing file descriptor,
 .Fa fildes .  .Fa fildes .
 The  The mode
 .Fa mode  
 of the stream must be compatible with the mode of the file descriptor.  of the stream must be compatible with the mode of the file descriptor.
 When the stream is closed via  When the stream is closed via
 .Xr fclose 3 ,  .Xr fclose 3 ,
Line 160  The Line 159  The
 argument is used just as in the  argument is used just as in the
 .Fn fopen  .Fn fopen
 function.  function.
   .Pp
   If the
   .Fa path
   argument is
   .Dv NULL ,
   .Fn freopen
   attempts to re-open the file associated with
   .Fa stream
   with a new mode.
   The new mode must be compatible with the mode that the stream was originally
   opened with:
   .Bl -bullet -offset indent
   .It
   Streams originally opened with mode
   .Dq Li r
   can only be reopened with that same mode.
   .It
   Streams originally opened with mode
   .Dq Li a
   can be reopened with the same mode, or mode
   .Dq Li w .
   .It
   Streams originally opened with mode
   .Dq Li w
   can be reopened with the same mode, or mode
   .Dq Li a .
   .It
   Streams originally opened with mode
   .Dq Li r+ ,
   .Dq Li w+ ,
   or
   .Dq Li a+
   can be reopened with any mode.
   .El
   .Pp
 The primary use of the  The primary use of the
 .Fn freopen  .Fn freopen
 function  function
 is to change the file associated with a  is to change the file associated with a
 standard text stream  standard text stream
 .Pf ( Em stderr ,  .Dv ( stderr , stdin ,
 .Em stdin ,  
 or  or
 .Em stdout ) .  .Dv stdout ) .
 .Sh RETURN VALUES  .Sh RETURN VALUES
 Upon successful completion  Upon successful completion
 .Fn fopen ,  .Fn fopen ,
Line 188  is set to indicate the error. Line 221  is set to indicate the error.
 .It Bq Er EINVAL  .It Bq Er EINVAL
 The  The
 .Fa mode  .Fa mode
 provided to  argument
   to
 .Fn fopen ,  .Fn fopen ,
 .Fn fdopen ,  .Fn fdopen ,
 or  or
Removed from v.1.2  
changed lines
  Added in v.1.3