--- a/progs/read2.c	Tue Dec 30 21:59:47 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,47 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-
-FILE *f; //file pointer
-
-//tests return errno = 13 for permission denied
-void read_test(char *name) 
-{
-    if ((f = fopen(name, "r")) == NULL) {
-      printf("%s is not readable, errno = %d\n", name, errno);
-    } else {
-      printf("%s is readable\n", name); fclose(f);
-    }
-}
-
-void write_test(char *name) 
-{
-    if ((f = fopen(name, "r+")) == NULL) {
-      printf("%s is not writable, errno = %d\n", name, errno);
-    } else {
-      printf("%s is writable\n", name); fclose(f);
-    }
-}
-
-int main(int argc, char *argv[])
-{   
-    printf("Real UID = %d\n", getuid());
-    printf("Effective UID = %d\n", geteuid());
-    
-    read_test(argv[1]);
-    write_test(argv[1]);
-
-    //lowering the access rights to the caller
-    if (setuid(getuid())) {  
-      printf("could not reset setuid, errno = %d\n", errno); 
-      return 1;
-    }
-        
-    printf("Real UID = %d\n", getuid());
-    printf("Effective UID = %d\n", geteuid());      
-
-    read_test(argv[1]);
-    write_test(argv[1]);
-
-    return 0;
-}