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

NAME


pr_statvfs - inject statvfs system call into victim process

SYNOPSIS


Process Control Library (libproc, -lproc)
#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(4)

illumos May 11, 2016 illumos