RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 03:57:44 +00:00
Code Issues Activity Actions

Everywhere: Replace a bundle of dbg with dbgln.

Browse source 
These changes are arbitrarily divided into multiple commits to make it
easier to find potentially introduced bugs with git bisect.
This commit is contained in:
asynts 2021-01-09 15:09:40 +01:00 • committed by Andreas Kling
parent 4e8fd0216b
commit 40b8e21115
11 changed files with 54 additions and 54 deletions
Download patch file Download diff file Expand all files Collapse all files

74
Userland/Tests/Kernel/setpgid-across-sessions-without-leader.cpp
View file

@ -79,14 +79,14 @@ static void fork_into(void (*fn)(void*), void* arg)
const int disown_rc = disown(rc);
if (disown_rc < 0) {
perror("disown");
dbg() << "This might cause PA1 to remain in the Zombie state, "
"and thus in the process list, meaning the leader is "
"still 'alive' for the purpose of lookup.";
dbgln("This might cause PA1 to remain in the Zombie state, "
"and thus in the process list, meaning the leader is "
"still 'alive' for the purpose of lookup.");
}
return;
}
fn(arg);
dbg() << "child finished (?)";
dbgln("child finished (?)");
exit(1);
}
@ -116,19 +116,19 @@ int main(int, char**)
perror("pipe");
exit(1);
}
dbg() << "PX starts with SID=" << getsid(0) << ", PGID=" << getpgid(0) << ", PID=" << getpid() << ".";
dbg() << "PX forks into PA1";
dbgln("PX starts with SID={}, PGID={}, PID={}.", getsid(0), getpgid(0), getpid());
dbgln("PX forks into PA1");
fork_into(run_pa1, nullptr);
sleep_steps(4);
// Time 4: PX forks into PB1
dbg() << "PX forks into PB1";
dbgln("PX forks into PB1");
fork_into(run_pb1, &(fds[1]));
sleep_steps(5);
// Time 9: If PX hasn't received any message yet through the pipe, it declares
// the test as failed (for lack of knowledge). Otherwise, it outputs accordingly.
dbg() << "PX reads from pipe";
dbgln("PX reads from pipe");
unsigned char buf = 42;
ssize_t rc = read(fds[0], &buf, 1);
if (rc == 0) {
@ -166,36 +166,36 @@ static void run_pa1(void*)
sleep_steps(1);
// Time 1: PA1 creates a new session (SA) and pgrp (PGA)
dbg() << "PA1 starts with SID=" << getsid(0) << ", PGID=" << getpgid(0) << ", PID=" << getpid() << ".";
dbg() << "PA1 calls setsid()";
dbgln("PA1 starts with SID={}, PGID={}, PID={}.", getsid(0), getpgid(0), getpid());
dbgln("PA1 calls setsid()");
int rc = setsid();
if (rc < 0) {
perror("setsid (PA)");
ASSERT_NOT_REACHED();
}
dbg() << "PA1 did setsid() -> PGA=" << rc << ", SA=" << getsid(0) << ", yay!";
dbgln("PA1 did setsid() -> PGA={}, SA={}, yay!", rc, getsid(0));
sleep_steps(1);
// Time 2: PA1 forks into PA2
dbg() << "PA1 forks into PA2";
dbgln("PA1 forks into PA2");
fork_into(run_pa2, nullptr);
sleep_steps(1);
// Time 3: PA1 dies (PGA now has no leader)
dbg() << "PA1 dies. You should see a 'Reaped unparented process' "
"message with my ID next, OR THIS TEST IS MEANINGLESS "
"(see fork_into()).";
dbgln("PA1 dies. You should see a 'Reaped unparented process' "
"message with my ID next, OR THIS TEST IS MEANINGLESS "
"(see fork_into()).");
exit(0);
}
static void run_pa2(void*)
{
// Time 2: PA1 forks into PA2
dbg() << "PA2 starts with SID=" << getsid(0) << ", PGID=" << getpgid(0) << ", PID=" << getpid() << ".";
dbgln("PA2 starts with SID={}, PGID={}, PID={}.", getsid(0), getpgid(0), getpid());
sleep_steps(18);
// pa_2 never *does* anything.
dbg() << "PA2 dies from boredom.";
dbgln("PA2 dies from boredom.");
exit(1);
}
@ -205,25 +205,25 @@ static void run_pb1(void* pipe_fd_ptr)
sleep_steps(1);
// Time 5: PB1 creates a new session (SB) and pgrp (PGB)
dbg() << "PB1 starts with SID=" << getsid(0) << ", PGID=" << getpgid(0) << ", PID=" << getpid() << ".";
dbg() << "PB1 calls setsid()";
dbgln("PB1 starts with SID={}, PGID={}, PID={}.", getsid(0), getpgid(0), getpid());
dbgln("PB1 calls setsid()");
int rc = setsid();
if (rc < 0) {
perror("setsid (PB)");
ASSERT_NOT_REACHED();
}
dbg() << "PB1 did setsid() -> PGB=" << rc << ", SB=" << getsid(0) << ", yay!";
dbgln("PB1 did setsid() -> PGB={}, SB={}, yay!", rc, getsid(0));
sleep_steps(1);
// Time 6: PB1 forks into PB2
dbg() << "PB1 forks into PB2";
dbgln("PB1 forks into PB2");
fork_into(run_pb2, pipe_fd_ptr);
sleep_steps(1);
// Time 7: PB1 dies (PGB now has no leader)
dbg() << "PB1 dies. You should see a 'Reaped unparented process' "
"message with my ID next, OR THIS TEST IS MEANINGLESS "
"(see fork_into()).";
dbgln("PB1 dies. You should see a 'Reaped unparented process' "
"message with my ID next, OR THIS TEST IS MEANINGLESS "
"(see fork_into()).");
exit(0);
}
@ -232,9 +232,9 @@ static void simulate_sid_from_pgid(pid_t pgid)
pid_t rc = getpgid(pgid); // Same confusion as in the Kernel
int saved_errno = errno;
if (rc < 0 && saved_errno == ESRCH) {
dbg() << "The old get_sid_from_pgid(" << pgid << ") would return -1";
dbgln("The old get_sid_from_pgid({}) would return -1", pgid);
} else if (rc >= 0) {
dbg() << "FAIL: Process " << pgid << " still exists?! PGID is " << rc << ".";
dbgln("FAIL: Process {} still exists?! PGID is {}.", pgid, rc);
} else {
perror("pgid (probably fail)");
}
@ -247,49 +247,49 @@ static void run_pb2(void* pipe_fd_ptr)
// Time 8: PB2 calls pgrp(0, PGA)
// Note: PB2 writes "1" (exploit successful) or "0" (bug is fixed) to a pipe
dbg() << "PB2 starts with SID=" << getsid(0) << ", PGID=" << getpgid(0) << ", PID=" << getpid() << ".";
dbg() << "PB2 calls pgrp(0, PGA)";
dbgln("PB2 starts with SID={}, PGID={}, PID={}.", getsid(0), getpgid(0), getpid());
dbgln("PB2 calls pgrp(0, PGA)");
int pga = getpid() - 3;
dbg() << "PB2: Actually, what is PGA? I guess it's " << pga << "?";
dbgln("PB2: Actually, what is PGA? I guess it's {}?", pga);
simulate_sid_from_pgid(pga);
int rc = setpgid(0, pga);
unsigned char to_write = 123;
if (rc == 0) {
dbg() << "PB2: setgpid SUCCESSFUL! CHANGED PGROUP!";
dbgln("PB2: setgpid SUCCESSFUL! CHANGED PGROUP!");
to_write = 1;
} else {
ASSERT(rc == -1);
switch (errno) {
case EACCES:
dbg() << "PB2: Failed with EACCES. Huh?!";
dbgln("PB2: Failed with EACCES. Huh?!");
to_write = 101;
break;
case EINVAL:
dbg() << "PB2: Failed with EINVAL. Huh?!";
dbgln("PB2: Failed with EINVAL. Huh?!");
to_write = 102;
break;
case ESRCH:
dbg() << "PB2: Failed with ESRCH. Huh?!";
dbgln("PB2: Failed with ESRCH. Huh?!");
to_write = 103;
break;
case EPERM:
dbg() << "PB2: Failed with EPERM. Aww, no exploit today :^)";
dbgln("PB2: Failed with EPERM. Aww, no exploit today :^)");
to_write = 0;
break;
default:
dbg() << "PB2: Failed with errno=" << errno << "?!";
dbgln("PB2: Failed with errno={}?!", errno);
perror("setpgid");
to_write = 104;
break;
}
}
dbg() << "PB2 ends with SID=" << getsid(0) << ", PGID=" << getpgid(0) << ", PID=" << getpid() << ".";
dbgln("PB2 ends with SID={}, PGID={}, PID={}.", getsid(0), getpgid(0), getpid());
int* pipe_fd = static_cast<int*>(pipe_fd_ptr);
ASSERT(*pipe_fd);
rc = write(*pipe_fd, &to_write, 1);
if (rc != 1) {
dbg() << "Wrote only " << rc << " bytes instead of 1?!";
dbgln("Wrote only {} bytes instead of 1?!", rc);
exit(1);
}
exit(0);