This fixes all the calls to die so they pass a proper string and not
NULL. die blindly pass its arguments to log_fatal, which in turns
relays on vprintf or such. At least on OpenBSD, giving NULL instead
of a string for %s yields a log entry in syslog:
Jan 21 09:35:22 venera gophernicus: vfprintf %s NULL in "Error: %s %s\^M "
As a side effect, now some errors from pledge and unveil are slightly
more clear.
`getcwd(3)' returns a NULL pointer when it fails, and a pointer to the buffer
when it succeeds. The array of characters (allocated on the stack) is not NULL,
so it cannot be used to check if `getcwd(3)' succeeded. Use the pointer
returned by `getcwd(3)' to check success.
This make it easier to manage separate compilation units (static functions and
global variables, local type definitions, etc.)
The generated header file `functions.h' caused a circular dependency problem;
it wasn't updated automatically when changes were made to the sources (e.g.
new function definition). The sources can't be in the dependency list of
`functions.h' in the Makefile, because `functions.h' is in the dependency list
of each source file. GNU make is able to ignore the circular dependency but not
BSD make.
At any rate, keeping the prototype list up-to-date is easy, because the
compiler will complain if a function is used in a compilation unit but defined
in an other one.
It also makes static analysis easier out of the box.
Before it only appeared in syslog. Make the error more obvious to
the admin, so that it appears on the page as well, and helps with
debugging.
Closes#32.
Yes, I am still alive, have just been busy.
