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

NAME

pr_statvfs - inject statvfs system call into victim process

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

int
pr_statvfs(struct ps_prochandle *P, const char *path, statvfs_t *buf);

DESCRIPTION

The pr_statvfs() function injects the statvfs(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 statvfs(2) on
the currently running process.

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

The pr_statvfs() 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_statvfs() function's return value is
that described in statvfs(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 statvfs(2).

The pr_statvfs() 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

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

illumos November 27, 2023 illumos