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edigaryev / awesome-system-calls

A categorized list of system calls used by popular Unix-like operating systems
MIT License
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Support `fcntl(2)`/`ioctl(2)` values #4

Open edigaryev opened 2 months ago

edigaryev commented 2 months ago

It seems that a big chunk of "what is possible or not on a given operating system" is hidden inside of super-syscalls like fcntl(2) and ioctl(2).

A good example for this use-case are sparse files and hole punching: one might think that macOS can't punch a hole in a file because it has no fallocate(2) system call, whereas in reality this can be accomplished using the F_PUNCHHOLE argument to fcntl(2).

It would be nice to support these values too.

edigaryev commented 1 month ago

FreeBSD example: