diff options
Diffstat (limited to 'ext')
-rw-r--r-- | ext/socket/init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ext/socket/init.c b/ext/socket/init.c index ed85e0b503..85cc3de4f9 100644 --- a/ext/socket/init.c +++ b/ext/socket/init.c @@ -43,6 +43,12 @@ VALUE rsock_init_sock(VALUE sock, int fd) { rb_io_t *fp; + struct stat sbuf; + + if (fstat(fd, &sbuf) < 0) + rb_sys_fail(0); + if (!S_ISSOCK(sbuf.st_mode)) + rb_raise(rb_eArgError, "not a socket file descriptor"); MakeOpenFile(sock, fp); fp->fd = fd; |