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Make libcap optional.

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This commit is contained in:
Scott Anderson 2017-07-04 00:29:03 +12:00
parent 5c211e6195
commit dd40a42a99
4 changed files with 30 additions and 5 deletions
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22
session/direct.c
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@ -321,17 +321,35 @@ static void communicate(int sock) {
}
static struct wlr_session *direct_session_start(struct wl_display *disp) {
#ifdef HAS_LIBCAP
static bool have_permissions(void) {
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);
return NULL;
return false;
}
cap_free(cap);
return true;
}
#else
static bool have_permissions(void) {
if (geteuid() != 0) {
wlr_log(L_ERROR, "Do not have root privileges; cannot become DRM master");
return false;
}
return true;
}
#endif
static struct wlr_session *direct_session_start(struct wl_display *disp) {
if (!have_permissions()) {
return NULL;
}
int sock[2];
if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sock) < 0) {