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

NAME

pr_fstatvfs - inject fstatvfs system call into victim process

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

int
pr_fstatvfs(struct ps_prochandle *P, int fd, statvfs_t *buf);

DESCRIPTION

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

The arguments fd and buf have the same meaning as in fstatvfs(2). See
fstatvfs(2) for the full description and purpose of the fstatvfs system
call and its arguments.

The pr_fstatvfs() 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_fstatvfs() function's return value
is that described in fstatvfs(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 fstatvfs(2).

The pr_fstatvfs() 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

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

illumos November 27, 2023 illumos