/usr/lib/klibc/include/sys/wait.h is in libklibc-dev 2.0.4-8ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | /*
* sys/wait.h
*/
#ifndef _SYS_WAIT_H
#define _SYS_WAIT_H
#include <klibc/extern.h>
#include <sys/types.h>
#include <sys/resource.h>
#include <linux/wait.h>
#define WEXITSTATUS(s) (((s) & 0xff00) >> 8)
#define WTERMSIG(s) ((s) & 0x7f)
#define WIFEXITED(s) (WTERMSIG(s) == 0)
#define WIFSTOPPED(s) (WTERMSIG(s) == 0x7f)
/* Ugly hack to avoid multiple evaluation of "s" */
#define WIFSIGNALED(s) (WTERMSIG((s)+1) >= 2)
#define WCOREDUMP(s) ((s) & 0x80)
#define WSTOPSIG(s) WEXITSTATUS(s)
__extern pid_t wait(int *);
__extern pid_t waitpid(pid_t, int *, int);
__extern pid_t wait3(int *, int, struct rusage *);
__extern pid_t wait4(pid_t, int *, int, struct rusage *);
#endif /* _SYS_WAIT_H */
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