PR_GETRLIMIT(3PROC) Process Control Library Functions PR_GETRLIMIT(3PROC)

NAME


pr_getrlimit, pr_getrlimit64 - inject getrlimit system call into victim
process

SYNOPSIS


Process Control Library (libproc, -lproc)
#include <libproc.h>

int
pr_getrlimit(struct ps_prochandle *P, int resource, struct rlimit *rlp);

int
pr_getrlimit64(struct ps_prochandle *P, int resource,
struct rlimit64 *rlp);

DESCRIPTION


The pr_getrlimit() function injects the getrlimit(2) system call into the
target process P by means of the agent LWP. If the process handle P is the
value NULL then this will be equivalent to calling getrlimit(2) on the
currently running process.

The arguments resource and rlp have the same meaning as in getrlimit(2).
See getrlimit(2) for the full description and purpose of the getrlimit
system call and its arguments.

The pr_getrlimit() function only works on active processes. Process
handles that correspond to core files, zombie processes, or ELF objects do
not support system call injection.

The pr_getrlimit64() function is equivalent to pr_getrlimit(); however,
rather than having the rlimit information be subject to the data model of
the target process, they always provide 64-bit rlimit information. See
lf64(5) for more information.

RETURN VALUES


Upon successful completion, the pr_getrlimit() function's return value is
that described in getrlimit(2). Otherwise, -1 is returned and errno is set
to ENOSYS to indicate that the system call could not be injected.

ERRORS


For the full list of errors see the ERRORS section in getrlimit(2).

The pr_getrlimit() function will fail if:

ENOSYS An error occurred while trying to invoke the agent LWP
and inject a system call in the process handle P or the
process handle P does not support system call injection.

INTERFACE STABILITY


Uncommitted

MT-LEVEL
See LOCKING in libproc(3LIB).

SEE ALSO


getrlimit(2), libproc(3LIB), proc(4), lf64(5)

illumos May 11, 2016 illumos