程序4-3 umask函数实例

 //http://blog.chinaunix.net/uid-24549279-id-71355.html
 /*
  ============================================================================
  Name        : test.c
  Author      : blank
  Version     :
  Copyright   : Your copyright notice
  Description : 程序4-3 umask函数实例
  ============================================================================
 */

 #include <fcntl.h>
 #include "ourhdr.h"

 #define RWRWRW (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)

 int main(int argc, char *argv[])
 {
     umask();

     if (creat("foo", RWRWRW) < ){
         err_sys("create error for foo");
     }

     umask(S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
     if (creat("bar", RWRWRW) < ){
         err_sys("creat error for bar");
     }
     exit();
 }