Commit 7e30942b authored by Juliusz Chroboczek's avatar Juliusz Chroboczek

Errno handling in kernel.

parent 1c152a25
...@@ -575,12 +575,14 @@ kernel_route(int operation, const unsigned char *dest, unsigned short plen, ...@@ -575,12 +575,14 @@ kernel_route(int operation, const unsigned char *dest, unsigned short plen,
if(nl_command.sock < 0) { if(nl_command.sock < 0) {
rc = netlink_socket(&nl_command, 0); rc = netlink_socket(&nl_command, 0);
if(rc < 0) { if(rc < 0) {
int olderrno = errno;
perror("kernel_route: netlink_socket()"); perror("kernel_route: netlink_socket()");
errno = olderrno;
return -1; return -1;
} }
} }
if(operation == ROUTE_MODIFY) { if(operation == ROUTE_MODIFY) {
if(newmetric == metric && memcmp(newgate, gate, 16) == 0 && if(newmetric == metric && memcmp(newgate, gate, 16) == 0 &&
newifindex == ifindex) newifindex == ifindex)
return 0; return 0;
......
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