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-rw-r--r--sysdeps/generic/ifreq.c10
-rw-r--r--sysdeps/unix/sysv/linux/ifreq.c10
2 files changed, 10 insertions, 10 deletions
diff --git a/sysdeps/generic/ifreq.c b/sysdeps/generic/ifreq.c
index da4db19e6f..55e833bdb3 100644
--- a/sysdeps/generic/ifreq.c
+++ b/sysdeps/generic/ifreq.c
@@ -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>.
@@ -43,11 +43,10 @@ __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
do
{
ifc.ifc_len = rq_len *= 2;
- 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);
@@ -55,6 +54,7 @@ __ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
*ifreqs = NULL;
return;
}
+ ifc.ifc_buf = newp;
}
while (rq_len < sizeof (struct ifreq) + ifc.ifc_len);
diff --git a/sysdeps/unix/sysv/linux/ifreq.c b/sysdeps/unix/sysv/linux/ifreq.c
index 5ab5b06397..b93cd56eab 100644
--- a/sysdeps/unix/sysv/linux/ifreq.c
+++ b/sysdeps/unix/sysv/linux/ifreq.c
@@ -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;