summaryrefslogtreecommitdiff
path: root/networking/libiproute/iplink.c
diff options
context:
space:
mode:
authorDenis Vlasenko2006-11-27 23:44:57 +0000
committerDenis Vlasenko2006-11-27 23:44:57 +0000
commit229b3d207216b23a107e4e1ee5584412f6b9318d (patch)
treed21a19b020f0ff35f7d0fa24f9812d68057ff06a /networking/libiproute/iplink.c
parente2d3ded3549edd58fe3b39f2254c65f0808bcac2 (diff)
downloadbusybox-229b3d207216b23a107e4e1ee5584412f6b9318d.zip
busybox-229b3d207216b23a107e4e1ee5584412f6b9318d.tar.gz
do not overflow ifr_name. maybe it was safe in some places,
but not everywhere. err to the safe side.
Diffstat (limited to 'networking/libiproute/iplink.c')
-rw-r--r--networking/libiproute/iplink.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/networking/libiproute/iplink.c b/networking/libiproute/iplink.c
index f79dab4..1ea11f6 100644
--- a/networking/libiproute/iplink.c
+++ b/networking/libiproute/iplink.c
@@ -61,7 +61,7 @@ static int do_chflags(char *dev, __u32 flags, __u32 mask)
int fd;
int err;
- strcpy(ifr.ifr_name, dev);
+ strncpy(ifr.ifr_name, dev, sizeof(ifr.ifr_name));
fd = get_ctl_fd();
if (fd < 0)
return -1;
@@ -88,8 +88,8 @@ static int do_changename(char *dev, char *newdev)
int fd;
int err;
- strcpy(ifr.ifr_name, dev);
- strcpy(ifr.ifr_newname, newdev);
+ strncpy(ifr.ifr_name, dev, sizeof(ifr.ifr_name));
+ strncpy(ifr.ifr_newname, newdev, sizeof(ifr.ifr_newname));
fd = get_ctl_fd();
if (fd < 0)
return -1;
@@ -113,7 +113,7 @@ static int set_qlen(char *dev, int qlen)
return -1;
memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, dev);
+ strncpy(ifr.ifr_name, dev, sizeof(ifr.ifr_name));
ifr.ifr_qlen = qlen;
if (ioctl(s, SIOCSIFTXQLEN, &ifr) < 0) {
perror("SIOCSIFXQLEN");
@@ -135,7 +135,7 @@ static int set_mtu(char *dev, int mtu)
return -1;
memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, dev);
+ strncpy(ifr.ifr_name, dev, sizeof(ifr.ifr_name));
ifr.ifr_mtu = mtu;
if (ioctl(s, SIOCSIFMTU, &ifr) < 0) {
perror("SIOCSIFMTU");
@@ -161,7 +161,7 @@ static int get_address(char *dev, int *htype)
}
memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, dev);
+ strncpy(ifr.ifr_name, dev, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
perror("SIOCGIFINDEX");
close(s);
@@ -194,7 +194,7 @@ static int parse_address(char *dev, int hatype, int halen, char *lla, struct ifr
int alen;
memset(ifr, 0, sizeof(*ifr));
- strcpy(ifr->ifr_name, dev);
+ strncpy(ifr->ifr_name, dev, sizeof(ifr->ifr_name));
ifr->ifr_hwaddr.sa_family = hatype;
alen = ll_addr_a2n((unsigned char *)(ifr->ifr_hwaddr.sa_data), 14, lla);
if (alen < 0)