diff options
Diffstat (limited to 'src/socket_wrapper.c')
| -rw-r--r-- | src/socket_wrapper.c | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c index 621a3e7..0303b21 100644 --- a/src/socket_wrapper.c +++ b/src/socket_wrapper.c @@ -2725,13 +2725,59 @@ static int swrap_bind(int s, const struct sockaddr *myaddr, socklen_t addrlen) int ret; struct sockaddr_un un_addr; struct socket_info *si = find_socket_info(s); + int bind_error = 0; if (!si) { return libc_bind(s, myaddr, addrlen); } - if (si->family != myaddr->sa_family) { - errno = EAFNOSUPPORT; + switch (si->family) { + case AF_INET: { + const struct sockaddr_in *sin; + if (addrlen < sizeof(struct sockaddr_in)) { + bind_error = EINVAL; + break; + } + + sin = (struct sockaddr_in *)myaddr; + + if (sin->sin_family != AF_INET) { + bind_error = EAFNOSUPPORT; + } + + /* special case for AF_UNSPEC */ + if (sin->sin_family == AF_UNSPEC && + (sin->sin_addr.s_addr == htonl(INADDR_ANY))) + { + bind_error = 0; + } + + break; + } +#ifdef HAVE_IPV6 + case AF_INET6: { + const struct sockaddr_in6 *sin6; + if (addrlen < sizeof(struct sockaddr_in6)) { + bind_error = EINVAL; + break; + } + + sin6 = (struct sockaddr_in6 *)myaddr; + + if (sin6->sin6_family != AF_INET6) { + bind_error = EAFNOSUPPORT; + } + + break; + } +#endif + default: + bind_error = EINVAL; + break; + } + + if (bind_error != 0) { + errno = bind_error; return -1; } |