chao
/
linuxptp
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Initialize the socket address structure to zero. 

It is safer and more correct to clear the addresses before use. The IPv6
fields flowinfo and scope_id in particular should not be set to random
values from the stack.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
master
Richard Cochran 2012-11-25 17:45:37 +01:00
parent b8b96dd606
commit 87313fd05d
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
udp.c
View File

@ -87,6 +87,7 @@ static int open_socket(char *name, struct in_addr mc_addr[2], short port)
struct sockaddr_in addr;
int fd, index, on = 1;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(port);
@ -184,6 +185,7 @@ static int udp_send(struct transport *t, struct fdarray *fda, int event, int pee
struct sockaddr_in addr;
unsigned char junk[1600];
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr = peer ? mcast_addr[MC_PDELAY] : mcast_addr[MC_PRIMARY];
addr.sin_port = htons(event ? EVENT_PORT : GENERAL_PORT);

2
udp6.c
View File

@ -86,6 +86,7 @@ static int open_socket_ipv6(char *name, struct in6_addr mc_addr[2], short port)
struct sockaddr_in6 addr;
int fd, index, on = 1;
memset(&addr, 0, sizeof(addr));
addr.sin6_family = AF_INET6;
addr.sin6_addr = in6addr_any;
addr.sin6_port = htons(port);
@ -183,6 +184,7 @@ static int udp6_send(struct transport *t, struct fdarray *fda, int event, int pe
struct sockaddr_in6 addr;
unsigned char junk[1600];
memset(&addr, 0, sizeof(addr));
addr.sin6_family = AF_INET6;
addr.sin6_addr = peer ? mc6_addr[MC_PDELAY] : mc6_addr[MC_PRIMARY];
addr.sin6_port = htons(event ? EVENT_PORT : GENERAL_PORT);