tree 9072d96478518ce0e5e16be537a746ab9b429620
parent fcf81b5deb8d02ba45907e90bb6668c67986a028
author Philipp Maier <pmaier@sysmocom.de> 1507647201 +0200
committer Neels Hofmeyr <nhofmeyr@sysmocom.de> 1508702966 +0000

add function msgb_printf() to print formatted text into msg buf

In ASCII string based protocols it a printf() version that prints
directly to the message buffer may be useful.

Add function msgb_printf(), make sure that msg buffer bounderies
are not exceeded. If the end of the tail buffer is hit, return
with an error code.

Change-Id: I15e1af68616309555d0ed9ac5da027c9833d42e3