Help with chmod or mode_t..

[arieltal]

Hello, i have an assignment to where i need to change
files and directory permissions.

the problem is that when i use chmod(filename,mode)
on files it works fine.
but when i use that on directories, it does not.
i have no idea as to why.. tried several approaches and
still got stuck.

please can anyone point me to solving this?

[Krendoshazin]

Please show us the exact commands that you were using for files and directories, and then we might be able to point you in the right direction.

[arieltal]

first i defined an int with the permission required, say i = 775
i have a char *name which is the name of the file/directory.
then i use the line
chmod(name,i);

[Krendoshazin]

It doesn't look like you're using enough digits for the mode. Try using 5 digits instead of 3. I'll leave you to figure out what to prefix it with, but I'll give you a clue that it's what you use if you don't want any permissions at all.