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authorJohn Denker <jsd@av8n.com>2012-06-02 01:58:45 (GMT)
committerJohn Denker <jsd@av8n.com>2012-06-02 01:58:45 (GMT)
commitb732a73bc773789894466b0e5320b2f1fe42c7e9 (patch)
tree385358983f064a1f10a5080b33a3ba13010886db /fd_move.3
parent634d365a03cb0581a062cd3cf4db9ae69f1cde26 (diff)
original, as downloaded from http://www.qmail.org/netqmail-1.06.tar.gz
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+.TH fd_move 3
+.SH NAME
+fd_move \- renumber a descriptor
+.SH SYNTAX
+.B #include <fd.h>
+
+int \fBfd_move\fP(\fIto\fR,\fIfrom\fR);
+
+int \fIto\fR;
+.br
+int \fIfrom\fR;
+.SH DESCRIPTION
+.B fd_move
+moves
+descriptor
+.I from
+to descriptor
+.IR to .
+If
+.I to
+was already open,
+.B fd_move
+closes it.
+If the move is successful,
+.B fd_move
+closes
+.IR from .
+Exception:
+if
+.I to
+and
+.I from
+are the same number,
+.B fd_move
+does nothing.
+
+.B fd_move
+returns 0 on success, -1 on error.
+.SH "SEE ALSO"
+dup(2),
+fd_copy(3)