- remove duplicate arp entries (#185604)

This commit is contained in:
Radek Vokál 2006-03-16 21:22:44 +00:00
parent 1fbcbe544c
commit 02ab27fccd
2 changed files with 47 additions and 1 deletions

View File

@ -0,0 +1,41 @@
Fix for when arp_disp_2() is called without opt_n set. If there is a DNS lookup, an
entry is added to /proc/net/arp after fopen(), resulting in a duplicate entry.
--- net-tools-1.60/arp.c.fgets 2005-12-10 14:52:04.000000000 -0500
+++ net-tools-1.60/arp.c 2005-12-11 00:15:59.000000000 -0500
@@ -528,7 +528,7 @@ static int arp_show(char *name)
int type, flags;
FILE *fp;
char *hostname;
- int num, entries = 0, showed = 0;
+ int num, entries, showed = 0;
host[0] = '\0';
@@ -546,18 +546,21 @@ static int arp_show(char *name)
perror(_PATH_PROCNET_ARP);
return (-1);
}
+ /* Count number of entries, in case file changes */
+ for (entries = 0; fgets(line, sizeof(line), fp); entries++);
+ entries--;
+ fseek (fp, 0L, SEEK_SET);
/* Bypass header -- read until newline */
if (fgets(line, sizeof(line), fp) != (char *) NULL) {
strcpy(mask, "-");
strcpy(dev, "-");
/* Read the ARP cache entries. */
- for (; fgets(line, sizeof(line), fp);) {
- num = sscanf(line, "%s 0x%x 0x%x %100s %100s %100s\n",
- ip, &type, &flags, hwa, mask, dev);
- if (num < 4)
+ for (num = 0; num < entries; num++) {
+ fgets(line, sizeof(line), fp);
+ if (sscanf(line, "%s 0x%x 0x%x %100s %100s %100s\n",
+ ip, &type, &flags, hwa, mask, dev) < 4)
break;
- entries++;
/* if the user specified hw-type differs, skip it */
if (hw_set && (type != hw->type))
continue;

View File

@ -3,7 +3,7 @@
Summary: Basic networking tools.
Name: net-tools
Version: 1.60
Release: 63
Release: 64
License: GPL
Group: System Environment/Base
Source0: http://www.tazenda.demon.co.uk/phil/net-tools/net-tools-%{version}.tar.bz2
@ -60,6 +60,7 @@ Patch45: net-tools-1.60-interface_stack.patch
Patch46: net-tools-1.60-selinux.patch
Patch47: net-tools-1.60-netstat_stop_trim.patch
Patch48: net-tools-1.60-netstat_inode.patch
Patch49: net-tools-1.60-fgets.patch
BuildRoot: %{_tmppath}/%{name}-root
Requires(post,preun): chkconfig
@ -116,6 +117,7 @@ ifconfig, netstat, route, and others.
%patch46 -p1 -b .selinux
%patch47 -p1 -b .trim
%patch48 -p1 -b .inode
%patch49 -p1 -b .fgets
cp %SOURCE2 ./config.h
cp %SOURCE3 ./config.make
@ -227,6 +229,9 @@ exit 0
%{_sysconfdir}/rc.d/init.d/netplugd
%changelog
* Thu Mar 16 2006 Radek Vokál <rvokal@redhat.com> - 1.60-54
- remove duplicate arp entries (#185604)
* Thu Feb 23 2006 Radek Vokál <rvokal@redhat.com> - 1.60-63
- show inodes in netstat (#180974)