projects
/
project
/
odhcpd.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
odhcpd: fix strncpy bounds
[project/odhcpd.git]
/
src
/
dhcpv4.c
diff --git
a/src/dhcpv4.c
b/src/dhcpv4.c
index
db5f138
..
35a3ad0
100644
(file)
--- a/
src/dhcpv4.c
+++ b/
src/dhcpv4.c
@@
-779,8
+779,10
@@
static void handle_dhcpv4(void *addr, void *data, size_t len,
}
}
}
}
- struct ifreq ifr = {.ifr_name = ""};
- strncpy(ifr.ifr_name, iface->ifname, sizeof(ifr.ifr_name));
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, iface->ifname, sizeof(ifr.ifr_name) - 1);
if (!ioctl(sock, SIOCGIFMTU, &ifr)) {
uint16_t mtu = htons(ifr.ifr_mtu);
if (!ioctl(sock, SIOCGIFMTU, &ifr)) {
uint16_t mtu = htons(ifr.ifr_mtu);