syslog()的基本用法

参考自《Linux程序设计》第二版 P137

#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <syslog.h>

int main(void){

    FILE *pfile;
    pfile = fopen("/home/kkk", "r");
  
    if(!pfile){
        syslog(LOG_ERR, "Error: %m");
    }
    
    exit(0);
}

$tail -1 /var/log/messages

Feb 18 23:01:38 lujinhong a.out: Error: No such file or directory