Manual Pages  — P_CANDEBUG

p_candebug – determine debuggability of a process

SYNOPSIS DESCRIPTION SYSCTL VARIABLES RETURN VALUES ERRORS SEE ALSO

#include <sys/param.h>

#include <sys/proc.h>

int
p_candebug(struct thread *td, struct proc *p);

This function can be used to determine if a given process p is debuggable by the thread td.

The p_candebug() function returns 0 if the process denoted by p is debuggable by thread td, or a non-zero error return value otherwise.

[EACCESS]
	The MAC subsystem denied debuggability.
[EAGAIN]
	Process p is in the process of being exec()'ed.
[EPERM]
	Thread td lacks super-user credentials and process p is executing a set-user-ID or set-group-ID executable.
[EPERM]
	Thread td lacks super-user credentials and process p, Ns, 's group set is not a subset of td, Ns, 's effective group set.
[EPERM]
	Thread td lacks super-user credentials and process p, Ns, 's user IDs do not match thread td, Ns, 's effective user ID.
[EPERM]
	Process p denotes the initial process initproc() and the sysctl(8) variable kern.securelevel is greater than zero.
[ESRCH]
	Process p is not visible to thread td as determined by cr_seeotheruids(9) or cr_seeothergids(9).
[ESRCH]
	Thread td has been jailed and process p does not belong to the same jail as td.
[ESRCH]
	The MAC subsystem denied debuggability.