* core: 'wow' command was replaced with 'wb'
* io: on_map_skyline returns false when nothing was done
Before this patch on_map_skyline returned true even when the callback
was not called on any part of the skyline. In other words,
reading/writing to an unmapped memory returned true.
This commit changes the behaviour to return false in those cases.
* analysis/esil: mem_read/mem_write were alway returning true
* use o malloc instead of oC
* librz: deal with seek errors
This allows tracing an io map back to the RzCoreFile and thus also its
bin file and other info. This is used in rz-ghidra to determine which
memory ranges can be considered readonly to enable constant propagation.
