diff -r 000000000000 -r 068428edee47 fd_copy.3 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/fd_copy.3 Fri Oct 19 14:06:22 2007 +0200 @@ -0,0 +1,44 @@ +.TH fd_copy 3 +.SH NAME +fd_copy \- duplicate a descriptor +.SH SYNTAX +.B #include + +int \fBfd_copy\fP(\fIto\fR,\fIfrom\fR); + +int \fIto\fR; +.br +int \fIfrom\fR; +.SH DESCRIPTION +.B fd_copy +copies +descriptor +.I from +to descriptor +.IR to . +If +.I to +was already open, +.B fd_copy +closes it. +.B fd_copy +always leaves +.I from +intact; +if +.I to +and +.I from +are the same number, +.B fd_copy +does nothing. + +.B fd_copy +returns 0 on success, -1 on error. +.B fd_copy +does not guarantee that +.I to +will remain open, if it was open, in case of error. +.SH "SEE ALSO" +dup(2), +fd_move(3)