Who can find the hidden error of this bad applet?

Who can find the hidden error of this bad applet-Linux general technology-Linux programming and kernel information. The following is a detailed description. # Include
# Include

# Include
# Inlcude
# Include


Main (int argc, char * argv [])

{

Int val, m;

Char buf [18] = "hellow my world ";

Char auf [18];

If (argc! = 2) {printf ("please put one file name"); exit (1 );}

If (val = open (argv [1], O_RDWR | O_EXCL | O_CREAT, S_IRWXU) <0) {printf ("open error"); perror ("dd ");}
If (m = write (val, buf, 14 )! = 14) exit (1); printf ("% d", m );

If (lseek (val, 0, SEEK_SET) =-1) {printf ("lseek erron"); perror ("dd ");}

M = read (val, auf, 14 );

Auf [m] = \ 0;
Printf ("zzzzzzz % szzx \ n: s", auf );

If (lseek (val, 2L, SEEK_SET) =-1) {printf ("lseek erron"); exit (-1 );}

If (read (val, auf, 18) <0) {printf ("read error"); exit (-1 );}

Printf ("% s", auf );
Close (val );
Unlink ("./argv [1]");

}