1#define _GNU_SOURCE
 2#include <sys/resource.h>
 3#include "syscall.h"
 4
 5#define FIX(x) do{ if ((x)>=SYSCALL_RLIM_INFINITY) (x)=RLIM_INFINITY; }while(0)
 6
 7int prlimit(pid_t pid, int resource, const struct rlimit *new_limit, struct rlimit *old_limit)
 8{
 9	struct rlimit tmp;
10	int r;
11	if (new_limit && SYSCALL_RLIM_INFINITY != RLIM_INFINITY) {
12		tmp = *new_limit;
13		FIX(tmp.rlim_cur);
14		FIX(tmp.rlim_max);
15		new_limit = &tmp;
16	}
17	r = syscall(SYS_prlimit64, pid, resource, new_limit, old_limit);
18	if (!r && old_limit && SYSCALL_RLIM_INFINITY != RLIM_INFINITY) {
19		FIX(old_limit->rlim_cur);
20		FIX(old_limit->rlim_max);
21	}
22	return r;
23}