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

NAME

pr_mmap - inject mmap system call into victim process

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

int
pr_mmap(struct ps_prochandle *P, void *addr, size_t len, int prot,
int flags, int fd, off_t off);

DESCRIPTION

The pr_mmap() function injects the mmap(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 mmap(2) on the currently
running process.

The arguments addr, len, prot, flags, fd, and off have the same meaning as
in mmap(2). See mmap(2) for the full description and purpose of the mmap
system call and its arguments.

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

RETURN VALUES

Upon successful completion, the pr_mmap() function's return value is that
described in mmap(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 mmap(2).

The pr_mmap() 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

mmap(2), libproc(3LIB), proc(5)

illumos November 27, 2023 illumos