Sparsediff
A simple application to diff two sparse files.
Instead of reading the entire file with read system calls, we skip holes and look for data using lseek,
SEEK_DATA and SEEK_HOLE.
Usage
./sparsediff <file 1> <file 1> [-c|--color-diffs] [-m|--data-marker] [-l|--context-lines <n. lines>]
- -c or --color-diffs colors differences in red
- -m or --data-marker prints a header for each "page" of data found
- -l or --context-lines sets how many lines of context before and after a difference are printed