日志

#include<stdio.h>#include<stdlib.h>#include<syslog.h>int main(){        FILE *f;        f = fopen("something","r");        openlog("logmask",LOG_PID,LOG_USER); //可选的 在接下的所有log中 加入pid logmaks[6650]        if(!f){                syslog(LOG_ERR|LOG_USER,"oops - %m\n");                syslog(LOG_ERR|LOG_USER,"pid = %d\n",getpid());        }        exit(0);}