p6-6.c

UNIX程序设计教程

#include <sys/types.h>
#include <sys/wait.h>
#include <stdio.h>
#include <signal.h>
void pr_exit(int status)
{
    int sig;
    if (WIFEXITED(status))   /* 正常终止的子进程 */
         printf("normal termination, exit status = %d\n",
                   WEXITSTATUS(status));
    else if (WIFSIGNALED(status)){   /* 由于异常而终止的子进程 */
         sig = WTERMSIG(status);
         printf("abnormal termination, signal number = %d%s: \n", sig,
#ifdef WCOREDUMP
                   WCOREDUMP(status) ? "(core file generated)" : "");
#else
                   "");
#endif
         psignal(sig, "");
    }
    else if (WIFSTOPPED(status)){
         sig = WSTOPSIG(status);
         printf("child stopped, signal number = %d: ", sig);
         psignal(sig, "");
    }
}