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add freeifaddrs(), which reclaims region allocated by getifaddrs().

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in sync with kame and bsdi.
This commit is contained in:
itojun 2000-02-23 15:29:18 +00:00
parent e1c9f9e96d
commit 4b9363d8e4
3 changed files with 16 additions and 8 deletions
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5
include/ifaddrs.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: ifaddrs.h,v 1.1 2000/02/23 06:57:47 itojun Exp $ */
/* $NetBSD: ifaddrs.h,v 1.2 2000/02/23 15:29:19 itojun Exp $ */
/*
* Copyright (c) 1995, 1999
@ -22,7 +22,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* BSDI ifaddrs.h,v 2.4 1999/03/15 20:59:28 jch Exp
* BSDI ifaddrs.h,v 2.5 2000/02/23 14:51:59 dab Exp
*/
#ifndef _IFADDRS_H_
@ -50,6 +50,7 @@ struct ifaddrs {
__BEGIN_DECLS
extern int getifaddrs __P((struct ifaddrs **));
extern void freeifaddrs __P((struct ifaddrs *));
__END_DECLS
#endif

9
lib/libc/net/getifaddrs.3
View File

@ -1,5 +1,5 @@
.\" $NetBSD: getifaddrs.3,v 1.1 2000/02/23 06:57:46 itojun Exp $
.\" BSDI getifaddrs.3,v 2.4 1999/03/15 20:57:20 jch Exp
.\" $NetBSD: getifaddrs.3,v 1.2 2000/02/23 15:29:18 itojun Exp $
.\" BSDI getifaddrs.3,v 2.5 2000/02/23 14:51:59 dab Exp
.\"
.\" Copyright (c) 1995, 1999
.\" Berkeley Software Design, Inc. All rights reserved.
@ -32,6 +32,8 @@
.Fd #include <ifaddrs.h>
.Ft int
.Fn getifaddrs "struct ifaddrs **ifap"
.Ft void
.Fn freeifaddrs "struct ifaddrs *ifp"
.Sh DESCRIPTION
The
.Fn getifaddrs
@ -120,8 +122,7 @@ which contains per-address interface statistics.
The data returned by
.Fn getifaddrs
is dynamically allocated and should be freed using
.Fn free
.Pq see Xr free 3
.Fn freeifaddrs
when no longer needed.
.Sh RETURN VALUES
Upon successful completion, a value of 0 is returned.

10
lib/libc/net/getifaddrs.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: getifaddrs.c,v 1.1 2000/02/23 06:57:46 itojun Exp $ */
/* $NetBSD: getifaddrs.c,v 1.2 2000/02/23 15:29:18 itojun Exp $ */
/*
* Copyright (c) 1995, 1999
@ -22,7 +22,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* BSDI getifaddrs.c,v 2.11 1999/03/15 20:57:20 jch Exp
* BSDI getifaddrs.c,v 2.12 2000/02/23 14:51:59 dab Exp
*/
#include <sys/types.h>
#include <sys/ioctl.h>
@ -367,3 +367,9 @@ getifaddrs(struct ifaddrs **pif)
}
return (0);
}
void
freeifaddrs(struct ifaddrs *ifp)
{
free(ifp);
}