It seems that pipe2() is not implemented as part of the Linux Binary Compatibility module. Unless you have access to the source code of the Citrix ICA client, which I really doubt it, there isn't much you can do about it.
One option is the way the Security Event Auditing system is implemented. The kernel sends data to the audit daemon (auditd) via the special device /dev/audit. Any user space program can send audit-related data to the kernel via the audit system calls. Even if user space programs need to send...
Actually, it's the carry bit that decides whether errno is needed or not.
cpu_set_syscall_retval(struct thread *td, int error)
{
switch (error) {
case 0:
td->td_frame->tf_eax = td->td_retval[0];
td->td_frame->tf_edx = td->td_retval[1]...
Right after /sbin/init starts until the user gets prompted and authenticated to log in to the system, all this work is handled by user-level processes using the system call interface. So, there's not much you can do kernel-wise. Plus, it is not recommended to place code arbitrarily into the...
The process owns the page.
However, if you look at /usr/include/sys/proc.h there is a member in struct proc
struct proc {
...
struct ucred *p_ucred; /* (c) Process owner's identity. */
...
}
which you can use to extract the data you need.
Yes! You're right! It should be documented though.
int
setpgid(struct thread *td, register struct setpgid_args *uap)
{
...
if (uap->pgid == 0)
uap->pgid = targp->p_pid;
...
I will raise the question to a mailing list.
int setpgid(pid_t pid, pid_t pgid);
Setting 0 as pgid is absolutely valid. It means that the process ID of the calling process should be used as the process group ID. If pid is 0 then the PID of the caller is used. If pid and pgid are equal, then the calling process becomes a process group...
I assume you mean C code, so, have a look at utmp.
As you may find out from the links provided by SirDice, w and who, as well as users use /var/run/utmp file to extract this info from the system.
Why? What do you mean beautiful?
From a quick "scan" I did in src/sys/kern/syscalls.master I concluded that there is not such a system call in FreeBSD.
coredump() is the kernel routine which dumps a process but there is not a system call so you can reach this function.
So, as far as I can...
Not exactly. The while loop evaluates the condition true; sleep 1.25; as one statement which is always true. This means that sleep 1.25; is executed as long as the loop runs i.e. /home/tiko/a.out returns.
It seems a little bit odd to me. If your process is run infinitely then the shell blocks itself which means that the loop is run once and it blocks until you break from it (aka SIGINT). If the process is run for some specific amount of time then I will be interested to know how you control the...
getopts is pretty much the standard way to do this.
Example:
#!/bin/sh
while getopts e:S:c opt
do
case "$opt" in
e) e_arg=$OPTARG;;
S) S_arg=$OPTARG;;
c) c_arg=$OPTARG;;
\?) echo "Usage [blah blah]"; exit 1;; #Invalid argument
esac
done
The way it...
Very nice of them indeed to share with public their Achilles' Heel as well as the things that helped them recover. Unfortunately, though I happened on the site at that time, I didn't grab a screenshot. �e
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