umask文件屏蔽字的使用【学习笔记】

 1 #include "apue.h"
 2 #include <fcntl.h>
 3 
 4 #define RWRWRW    (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
 5 
 6 int main(int argc,char *argv[])
 7 {
 8     umask(0);
 9     if(creat("zbzhuang",RWRWRW) < 0)
10         err_sys("create error for zbzhuang
");
11 
12     umask(S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
13     if(creat("caylin",RWRWRW) < 0)
14         err_sys("create error for caylin
");
15 
16     return 0;
17 }
18 ~

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原文地址：https://www.cnblogs.com/zzb-Dream-90Time/p/6963522.html