35 lines
482 B
C
35 lines
482 B
C
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <assert.h>
|
|
|
|
#define BLOCK_SIZE 1
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int fin, fout;
|
|
char buf[BLOCK_SIZE];
|
|
|
|
assert( argc == 3 );
|
|
|
|
fin = open(argv[1],O_RDONLY);
|
|
assert( fin >= 0 );
|
|
|
|
fout = open(argv[2],O_CREAT|O_WRONLY|O_TRUNC,0600);
|
|
assert( fout >= 0 );
|
|
|
|
while(1){
|
|
ssize_t nb_read;
|
|
nb_read = read(fin,buf,BLOCK_SIZE);
|
|
if (nb_read <= 0)
|
|
break;
|
|
write(fout,buf,nb_read);
|
|
}
|
|
|
|
close(fin);
|
|
close(fout);
|
|
|
|
return 0;
|
|
}
|
|
|