You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
446 B
24 lines
446 B
#include "user_lib.h"
|
|
#include "util/string.h"
|
|
#include "util/types.h"
|
|
|
|
int main(int argc, char *argv[]) {
|
|
int fd;
|
|
int MAXBUF = 512;
|
|
char buf[MAXBUF];
|
|
char *filename = argv[0];
|
|
|
|
printu("\n======== cat command ========\n");
|
|
printu("cat: %s\n", filename);
|
|
|
|
fd = open(filename, O_RDWR);
|
|
printu("file descriptor fd: %d\n", fd);
|
|
|
|
read_u(fd, buf, MAXBUF);
|
|
printu("read content: \n%s\n", buf);
|
|
close(fd);
|
|
|
|
exit(0);
|
|
return 0;
|
|
}
|