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Kernel+Userland: Add "settime" pledge promise for setting system time

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We now require the "settime" promise from pledged processes who want to
change the system time.
This commit is contained in:
Andreas Kling 2020-05-08 22:54:17 +02:00
parent 1cddb1055f
commit 5bfd893292
4 changed files with 29 additions and 22 deletions
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11
Userland/date.cpp
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@ -26,13 +26,14 @@
#include <AK/String.h>
#include <LibCore/DateTime.h>
#include <LibCore/DateTime.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
int main(int argc, char** argv)
{
if (pledge("stdio", nullptr) < 0) {
if (pledge("stdio settime", nullptr) < 0) {
perror("pledge");
return 1;
}
@ -47,10 +48,14 @@ int main(int argc, char** argv)
bool ok;
timespec ts = { String(argv[2]).to_uint(ok), 0 };
if (!ok) {
printf("date: Invalid timestamp value\n");
fprintf(stderr, "date: Invalid timestamp value");
return 1;
}
return clock_settime(CLOCK_REALTIME, &ts);
if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
perror("clock_settime");
return 1;
}
return 0;
}
printf("%s\n", Core::DateTime::from_timestamp(now).to_string().characters());