Leo Baltus:
> However, I did notice that postfix exec()'s new processes using the
> path to the binaries it got from
> 'PATH=symlink_to_postfix/sbin postfix start'
> instead of compile-time arguments DEF_COMMAND_DIR DEF_DAEMON_DIR etc.
The Postfix master(8) daemon executes programs with pathnames
that are derived from the $daemon_directory value.
master_ent.c: serv->path = concatenate(var_daemon_dir, "/", command, (char
*) 0);
master_spawn.c: execvp(serv->path, serv->args->argv);
The kernel resolves the pathname each time Postfix invokes execvp().
> I may have been playing with symlink_to_postfix while hunting this down.
If you swap symlinks, then the result of execvp() will change.
Wietse
