[readline] Extend maximum read line length to 1024 characters

Realistic Linux kernel command lines may exceed our current 256
character limit for interactively edited commands or settings.

Switch from stack allocation to heap allocation, and increase the
limit to 1024 characters.

Requested-by: Matteo Guglielmi <Matteo.Guglielmi@dalco.ch>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
1 file changed
tree: 2f58659887657854975a751e4cf31dd7b0af064a
  1. .github/
  2. contrib/
  3. src/
  4. COPYING
  5. COPYING.GPLv2
  6. COPYING.UBDL
  7. README