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Minor fixes

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This commit is contained in:
Scott Anderson 2017-07-03 19:56:14 +12:00
parent 60955addc0
commit c2b54be74a
1 changed files with 21 additions and 10 deletions
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31
session/direct.c
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@ -38,16 +38,26 @@ struct direct_session {
static int direct_session_open(struct wlr_session *restrict base,
const char *restrict path) {
struct direct_session *session = wl_container_of(base, session, base);
// These are the flags logind uses
int fd = open(path, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK);
if (fd == -1) {
wlr_log_errno(L_ERROR, "%s", path);
wlr_log_errno(L_ERROR, "Cannot open %s", path);
return -errno;
}
struct stat st;
if (fstat(fd, &st) == 0 && major(st.st_rdev) == DRM_MAJOR) {
if (drmSetMaster(fd)) {
// Save errno, in case close() clobbers it
int e = errno;
wlr_log(L_ERROR, "Cannot become DRM master: %s%s", strerror(e),
e == EINVAL ? "; is another display server running?" : "");
close(fd);
return -e;
}
session->drm_fd = fd;
drmSetMaster(fd);
}
return fd;
@ -105,6 +115,7 @@ static int vt_handler(int signo, void *data) {
}
static bool setup_tty(struct direct_session *session, struct wl_display *display) {
// TODO: Change this to accept any TTY, instead of just the current one
session->tty_fd = dup(STDIN_FILENO);
struct stat st;
@ -144,7 +155,7 @@ static bool setup_tty(struct direct_session *session, struct wl_display *display
}
if (ioctl(session->tty_fd, KDSETMODE, KD_GRAPHICS)) {
wlr_log_errno(L_ERROR, "Failed to get graphics mode on tty");
wlr_log_errno(L_ERROR, "Failed to set graphics mode on tty");
goto error;
}
@ -174,23 +185,23 @@ error:
}
static struct wlr_session *direct_session_start(struct wl_display *disp) {
struct direct_session *session = calloc(1, sizeof(*session));
if (!session) {
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
return NULL;
}
cap_t cap = cap_get_proc();
cap_flag_value_t val;
if (!cap || cap_get_flag(cap, CAP_SYS_ADMIN, CAP_PERMITTED, &val) || val != CAP_SET) {
wlr_log(L_ERROR, "Do not have CAP_SYS_ADMIN; cannot become DRM master");
cap_free(cap);
goto error_session;
return NULL;
}
cap_free(cap);
struct direct_session *session = calloc(1, sizeof(*session));
if (!session) {
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
return NULL;
}
if (!setup_tty(session, disp)) {
goto error_session;
}