diff options
Diffstat (limited to 'libbb/bind_interface.c')
-rw-r--r-- | libbb/bind_interface.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/libbb/bind_interface.c b/libbb/bind_interface.c new file mode 100644 index 0000000..1eb4414 --- /dev/null +++ b/libbb/bind_interface.c @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2014 RIPE NCC <atlas@ripe.net> + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ + +#include "libbb.h" + +int bind_interface(int socket, int af, char *name) +{ + struct sockaddr_storage sa; + + memset(&sa, '\0', sizeof(sa)); + + if (af == AF_INET) + { + sa.ss_family= AF_INET; + if (inet_pton(af, name, + &((struct sockaddr_in *)&sa)->sin_addr) == 1) + { + return bind(socket, (struct sockaddr *)&sa, + sizeof(sa)); + } + } + else + { + sa.ss_family= AF_INET6; + if (inet_pton(af, name, + &((struct sockaddr_in6 *)&sa)->sin6_addr) == 1) + { + return bind(socket, (struct sockaddr *)&sa, + sizeof(sa)); + } + } + if (setsockopt(socket, SOL_SOCKET, SO_BINDTODEVICE, name, + strlen(name)+1) == -1) + { + return -1; + } + + return 0; +} + |