diff options
Diffstat (limited to 'src/udev/udev-ctrl.c')
| -rw-r--r-- | src/udev/udev-ctrl.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/udev/udev-ctrl.c b/src/udev/udev-ctrl.c index a235912ffb..c0c3fe5ae7 100644 --- a/src/udev/udev-ctrl.c +++ b/src/udev/udev-ctrl.c @@ -10,6 +10,7 @@ */ #include <errno.h> +#include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <stddef.h> @@ -188,7 +189,28 @@ struct udev_ctrl_connection *udev_ctrl_get_connection(struct udev_ctrl *uctrl) conn->refcount = 1; conn->uctrl = uctrl; +#if HAVE_DECL_ACCEPT4 conn->sock = accept4(uctrl->sock, NULL, NULL, SOCK_CLOEXEC|SOCK_NONBLOCK); + + /* Fallback path when accept4() is unavailable */ + if ( conn->sock < 0 && (errno == ENOSYS || errno == ENOTSUP) ) + { + conn->sock = accept(uctrl->sock, NULL, NULL); + + if (conn->sock >= 0) { + fcntl(conn->sock, F_SETFL, O_NONBLOCK); + fcntl(conn->sock, F_SETFD, FD_CLOEXEC); + } + } +#else + conn->sock = accept(uctrl->sock, NULL, NULL); + + if (conn->sock >= 0) { + fcntl(conn->sock, F_SETFL, O_NONBLOCK); + fcntl(conn->sock, F_SETFD, FD_CLOEXEC); + } +#endif + if (conn->sock < 0) { if (errno != EINTR) log_error("unable to receive ctrl connection: %m\n"); |