1 .TH fd_move 3

     2 .SH NAME

     3 fd_move \- renumber a descriptor

     4 .SH SYNTAX

     5 .B #include <fd.h>

     6 

     7 int \fBfd_move\fP(\fIto\fR,\fIfrom\fR);

     8 

     9 int \fIto\fR;

    10 .br

    11 int \fIfrom\fR;

    12 .SH DESCRIPTION

    13 .B fd_move

    14 moves

    15 descriptor

    16 .I from

    17 to descriptor

    18 .IR to .

    19 If

    20 .I to

    21 was already open,

    22 .B fd_move

    23 closes it.

    24 If the move is successful,

    25 .B fd_move

    26 closes

    27 .IR from .

    28 Exception:

    29 if

    30 .I to

    31 and

    32 .I from

    33 are the same number,

    34 .B fd_move

    35 does nothing.

    36 

    37 .B fd_move

    38 returns 0 on success, -1 on error.

    39 .SH "SEE ALSO"

    40 dup(2),

    41 fd_copy(3)