How do I lock a file in Unix(SunOs5.6)so other sessions
of a program cant manipulate with the locked file?
I have tried lockf,flock but doesn't get it to work.
Im using C on Win95 and I have no manual for Unix.
(except "man" on Telnet)
I open my file with fopen.
I have tried this
f = fopen("lock","r");
When I run it I got segmentation fault