strdup.3

wu-ftpd类unix下的ftp服务器,可用于嵌入式系统

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.\" P. Allman.  Portions Copyright (c) 1989 Massachusetts Institute of 
.\" Technology.  Portions Copyright (c) 1997 Stan Barber.  Portions 
.\" Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997 Free Software 
.\" Foundation, Inc.  Portions Copyright (c) 1997 Kent Landfield. 
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.\"     $Id: strdup.3,v 1.4 2000/07/01 18:40:49 wuftpd Exp $
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.Dd April 19, 1991
.Dt STRDUP 3
.Os
.Sh NAME
.Nm strdup
.Nd save a copy of a string
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft char *
.Fn strdup "const char *str"
.Sh DESCRIPTION
The
.Fn strdup
function
allocates sufficient memory for a copy
of the string
.Fa str ,
does the copy, and returns a pointer to it.
The pointer may subsequently be used as an
argument to the function
.Xr free 3 .
.Sh SEE ALSO
.Xr calloc 3
.Xr malloc 3
.Xr realloc 3
.Xr free 3
.Sh HISTORY
The
.Fn strdup
function
.Ud .