#include 
     
       #include 
      
        #include 
       
         #include 
        
          int main(void) {
    int fd; char filename[] = "/root/wenhao";      /* file is not exist */ if ((fd = open(filename, O_RDONLY)) == -1)     {
            syslog(LOG_ERR | LOG_LOCAL0, "open %s: %m\n", filename);         exit(1);     } return 0; }
        
       
      
     

[root@localhost ex15_syslog]# tail -n 1 /var/log/messages

Sep  6 14:17:46 localhost syslog: open /root/wenhao: No such file or directory 

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