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screenlock: blank screen using /dev/mousectl (thanks sl)

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This commit is contained in:
cinap_lenrek 2017-12-01 23:13:01 +01:00
parent f03260bf25
commit 2bf642de9d
1 changed files with 5 additions and 19 deletions
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24
sys/src/cmd/screenlock.c
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@ -8,23 +8,12 @@
char pic[] = "/lib/bunny.bit";
int vgactl;
int debug;
int doblank;
int chatty = 0;
char user[256];
void
blankscreen(int blank)
{
if(vgactl < 0)
return;
seek(vgactl, 0, 0);
if(fprint(vgactl, blank? "blank": "unblank") < 0)
fprint(2, "blankscreen: can't blank: %r\n");
}
void
error(char *fmt, ...)
{
@ -122,7 +111,6 @@ checkpassword(void)
fprint(2, "%s's screenlock password: ", user);
memset(buf, 0, sizeof buf);
readline(buf, sizeof buf);
blankscreen(0);
if(chatty || !must)
fprint(2, "\n");
if(buf[0] == '\0' || buf[0] == '\04'){
@ -142,14 +130,16 @@ checkpassword(void)
doblank = 1;
}
memset(buf, 0, sizeof buf);
blankscreen(0);
}
void
blanker(void *)
{
int tics;
int fd, tics;
fd = open("/dev/mousectl", OWRITE);
if(fd < 0)
return;
tics = 0;
for(;;){
if(doblank > 0){
@ -157,7 +147,7 @@ blanker(void *)
tics = 10;
}
if(tics > 0 && --tics == 0)
blankscreen(1);
write(fd, "blank", 5);
sleep(1000);
}
}
@ -268,10 +258,6 @@ void
threadmain(int argc, char *argv[])
{
readfile("#c/user", user, sizeof user, 1);
if((vgactl = open("/dev/vgactl", OWRITE)) < 0)
vgactl = open("#v/vgactl", OWRITE);
ARGBEGIN{
case 'd':
debug++;