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* sysdeps/unix/sysv/linux/ifreq.c (__ifreq): Fix memory handling.
	* sysdeps/generic/ifreq.c (__ifreq): Fix memory handling.

	* resolv/res_hconf.c (_res_hconf_reorder_addrs): Make clear that
	realloc cannot fail.

	* nss/nss_files/files-netgrp.c (EXPAND): Free buffer which cannot
	be expanded.

	* nis/nis_table.c: Clean up memory handling.
	* nis/nis_subr.c (nis_getnames): Clean up memory handling.
	* nis/nis_removemember.c (nis_removemember): Add comment
	explaining use of realloc.
This commit is contained in:
Ulrich Drepper
2004-05-07 03:57:57 +00:00
parent f1debaf682
commit 9be31a5149
11 changed files with 145 additions and 54 deletions
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10
sysdeps/unix/sysv/linux/ifreq.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1999, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>.
@ -70,11 +70,10 @@ __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
while (1)
{
ifc.ifc_len = rq_len;
ifc.ifc_buf = realloc (ifc.ifc_buf, ifc.ifc_len);
if (ifc.ifc_buf == NULL || __ioctl (fd, SIOCGIFCONF, &ifc) < 0)
void *newp = realloc (ifc.ifc_buf, ifc.ifc_len);
if (newp == NULL || __ioctl (fd, SIOCGIFCONF, &ifc) < 0)
{
if (ifc.ifc_buf)
free (ifc.ifc_buf);
free (ifc.ifc_buf);
if (fd != sockfd)
__close (fd);
@ -83,6 +82,7 @@ __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
*ifreqs = NULL;
return;
}
ifc.ifc_buf = newp;
if (!old_siocgifconf || ifc.ifc_len < rq_len)
break;