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#include <fcntl.h> // open
#include <unistd.h> // close
#include <stdio.h> // perror
#include <sys/stat.h> // mode_t
int main(int argc, char* argv[]) {
int f1 = open(argv[1], O_CREAT, 0777);
if (f1 < 0) {
perror("open");
return 1;
}
mode_t oldmask = umask(0);
int f2 = open(argv[2], O_CREAT, 0777);
if (f2 < 0) {
perror("open");
return 2;
}
umask(oldmask);
close(f1);
close(f2);
}
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