[libc] Add hexdump display routine to C library #2568
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Adds slightly modified
hexdumpkernel routine to be available in ELKS C library. This allows for easy display of buffer contents for debugging purposes, and adds a prefix argument to prefix displayed output.Tested with telnet.c to quickly show binary dump of received data (this was used to verify DM reception in #2567).
Removes local hexdump from ktcp in favor of C library routine.
Screenshot shows use of
hexdumpto display hex byte stream of received telnet data on macOS login (commented out in PR):