There is a standard C approach to files, but there is also a POSIX standard that is implemented in Linux/Unix and in many ways this is more general than the C file functions. The reason is that once ...

Last week's article on syslets briefly mentioned a problem with using file descriptors for low-level communications with the kernel. There is a single namespace for file descriptors, combined with a ...

Developers learning the Unix (or POSIX in general) system-call set will quickly encounter file descriptors, which are used to represent open files and more. Developers also tend to learn early on that ...

As I'm spending some time back in the land of low-level C, I'm trying to fully get my head around best-practices for header files and code organization, so I thought I'd toss out some questions. (NOTE ...

The actual permissions that result are complicated by the fact that the process has a default permissions mask - umask. The effective permissions are given by mode & ~umask which means that the bits ...