diff options
Diffstat (limited to 'ext/socket')
| -rw-r--r-- | ext/socket/ancdata.c | 8 | ||||
| -rw-r--r-- | ext/socket/init.c | 13 |
2 files changed, 18 insertions, 3 deletions
diff --git a/ext/socket/ancdata.c b/ext/socket/ancdata.c index fa794eb182..34a6185b9c 100644 --- a/ext/socket/ancdata.c +++ b/ext/socket/ancdata.c @@ -1362,11 +1362,17 @@ struct recvmsg_args_struct { ssize_t rsock_recvmsg(int socket, struct msghdr *message, int flags) { + ssize_t ret; + socklen_t len0; #ifdef MSG_CMSG_CLOEXEC /* MSG_CMSG_CLOEXEC is available since Linux 2.6.23. Linux 2.6.18 silently ignore it. */ flags |= MSG_CMSG_CLOEXEC; #endif - return recvmsg(socket, message, flags); + len0 = message->msg_namelen; + ret = recvmsg(socket, message, flags); + if (ret != -1 && len0 < message->msg_namelen) + message->msg_namelen = len0; + return ret; } static void * diff --git a/ext/socket/init.c b/ext/socket/init.c index ab3fcf2b89..fc3ab49307 100644 --- a/ext/socket/init.c +++ b/ext/socket/init.c @@ -98,8 +98,13 @@ static VALUE recvfrom_blocking(void *data) { struct recvfrom_arg *arg = data; - return (VALUE)recvfrom(arg->fd, RSTRING_PTR(arg->str), RSTRING_LEN(arg->str), - arg->flags, (struct sockaddr*)&arg->buf, &arg->alen); + socklen_t len0 = arg->alen; + ssize_t ret; + ret = recvfrom(arg->fd, RSTRING_PTR(arg->str), RSTRING_LEN(arg->str), + arg->flags, (struct sockaddr*)&arg->buf, &arg->alen); + if (ret != -1 && len0 < arg->alen) + arg->alen = len0; + return (VALUE)ret; } VALUE @@ -182,6 +187,7 @@ rsock_s_recvfrom_nonblock(VALUE sock, int argc, VALUE *argv, enum sock_recv_type long slen; int fd, flags; VALUE addr = Qnil; + socklen_t len0; rb_scan_args(argc, argv, "11", &len, &flg); @@ -205,7 +211,10 @@ rsock_s_recvfrom_nonblock(VALUE sock, int argc, VALUE *argv, enum sock_recv_type rb_io_check_closed(fptr); rb_io_set_nonblock(fptr); + len0 = alen; slen = recvfrom(fd, RSTRING_PTR(str), buflen, flags, (struct sockaddr*)&buf, &alen); + if (slen != -1 && len0 < alen) + alen = len0; if (slen < 0) { switch (errno) { |