Pali Rohár a339d6c464 tools: kwboot: Replace fstat()+st_size by lseek()+SEEK_END ...

fstat()'s st_size works only for regular files. lseek() with SEEK_END works
also for block or MTD devices. This replacement allows kwboot to load
kwbimage from /dev/mtd0 for booting another device over /dev/ttyS0.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

2022-04-21 12:31:36 +02:00

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