system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-07-23 19:28:36 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Use strlcpy() instead of strncpy() when copying ifname to ensure

Browse source 
that it is NUL terminated.  Additional NUL padding is not required
for short names.

Reported by:	Coverity
CID:		99186, 991864, 991865
MFC after:	1 week
This commit is contained in:
Don Lewis 2016-05-15 22:17:41 +00:00
parent 8afa1c3d7a
commit dc47112fa5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=299868
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
usr.sbin/rtsold/if.c
View file

@ -82,7 +82,7 @@ interface_up(char *name)
int s;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
memset(&nd, 0, sizeof(nd));
strlcpy(nd.ifname, name, sizeof(nd.ifname));
@ -180,7 +180,7 @@ interface_status(struct ifinfo *ifinfo)
/* get interface flags */
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
if (ioctl(ifsock, SIOCGIFFLAGS, &ifr) < 0) {
warnmsg(LOG_ERR, __func__, "ioctl(SIOCGIFFLAGS) on %s: %s",
ifname, strerror(errno));
@ -196,7 +196,7 @@ interface_status(struct ifinfo *ifinfo)
if (!ifinfo->mediareqok)
goto active;
memset(&ifmr, 0, sizeof(ifmr));
strncpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name));
strlcpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name));
if (ioctl(ifsock, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
if (errno != EINVAL) {
@ -396,7 +396,7 @@ get_llflag(const char *name)
continue;
memset(&ifr6, 0, sizeof(ifr6));
strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name));
strlcpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name));
memcpy(&ifr6.ifr_ifru.ifru_addr, sin6, sin6->sin6_len);
if (ioctl(s, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
warnmsg(LOG_ERR, __func__,