PR_SETRLIMIT(3PROC) Process Control Library Functions PR_SETRLIMIT(3PROC)
NAME
pr_setrlimit,
pr_setrlimit64 - inject setrlimit system call into victim
process
LIBRARY
Process Control Library (libproc, -lproc)
SYNOPSIS
#include <libproc.h> int pr_setrlimit(
struct ps_prochandle *P,
int resource,
const struct rlimit *rlp);
int pr_setrlimit64(
struct ps_prochandle *P,
int resource,
struct rlimit64 *rlp);
DESCRIPTION
The
pr_setrlimit() function injects the
setrlimit(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
setrlimit(2) on the currently running process.
The arguments
resource and
rlp have the same meaning as in
setrlimit(2). See
setrlimit(2) for the full description and purpose of
the
setrlimit system call and its arguments.
The
pr_setrlimit() 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_setrlimit64() function is equivalent to
pr_setrlimit(); 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(7) for more information.
RETURN VALUES
Upon successful completion, the
pr_setrlimit() function's return value
is that described in
setrlimit(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
setrlimit(2).
The
pr_setrlimit() 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
UncommittedMT-LEVEL See
LOCKING in
libproc(3LIB).
SEE ALSO
setrlimit(2),
libproc(3LIB),
proc(5),
lf64(7)illumos November 27, 2023 illumos
