prexit.c

APUE(第二版)的随书源代码,与第一版的代码相比增加了一些章节的代码(详见第二版的说明)

#include	<sys/types.h>
#include	<sys/wait.h>
#include	"ourhdr.h"

void
pr_exit(int status)
{
	if (WIFEXITED(status))
		printf("normal termination, exit status = %d\n",
				WEXITSTATUS(status));
	else if (WIFSIGNALED(status))
		printf("abnormal termination, signal number = %d%s\n",
				WTERMSIG(status),
#ifdef	WCOREDUMP
				WCOREDUMP(status) ? " (core file generated)" : "");
#else
				"");
#endif
	else if (WIFSTOPPED(status))
		printf("child stopped, signal number = %d\n",
				WSTOPSIG(status));
}