* Improved false-positive detection in str_search
This commit adds the following features:
- Extend the false-positive check on ASCII frequencies to all UTF strings
- Add a global option to activate/deactivate di check
- Improve the false-positive heuristic by adding a special case for extended-ASCII strings
* Cleanup RzAnalysisRzil when freeing RzAnalysis
* Fix str leaking in rz_core_write_string_at
* Fix buf leaking in rz_core_yank_paste
* Fix memleak in json unit tests
* Fix features leaking in RzBinInfo
* Fix features leaking in RzAsm
* Fix memleaks in RzTable
* Fix test_str_search memleaks
* Fix memleak in test_io.c
* Fix memleaks in RzBuf and test_buf.c
* Fix memleaks in test_cmd.c
* Fix memleaks in test_config.c
* Fix memleaks in RzCons
* Fix hashes leaking in test_bin.c
* Fix memleaks in test_id_storage.c
* Fix memleaks in test_il*.c and adjust APIs
* Do not escape strings during the search
* Port `C` (metainformation) commands to the rzshell
* Improve string autodetection
* Remove `Cr` and RZ_META_TYPE_RUN
* Escape `\x1b` as `\e` character in strings
* Move string encoding options to `RzStrEncOptions` struct
* Add `esc_double_quotes` option to `RzStrEncOptions`
* Do not filter out unprintable characters for uppercase check
* Use `esc_double_quotes` when printing the string between '"' in disasm
* Use signed chars on all platforms/architectures
Co-authored-by: Riccardo Schirone <sirmy15@gmail.com>
* Refactored string search
string search logic moved from librz/bin/bfile.c to
librz/util/str_search.c
* UTF-16BE and UTF-32BE support
* Decoupled rz_str_search with rz_bin
* Changed parameter order in rz_scan_strings
* Fixed needle reset in rz_string_search
Now when the string search fails, needle is restored to original_needle+1,
i.e., we continue the searching process starting from the next byte.
* Changed heuristic for UTF BE detection
one more byte in for the detection (6 instead of 5)
* Fixed unit test in str_search
* Refactored rz_scan_strings and better UTF16-LE and UTF16-BE detection
Now if there is an ambiguity between UTF16-LE and UTF16-BE, we take the
longest one.
* Changed UTF BE heuristic
If there is any ambiguity about big-endian or little-endian, always
choose little endian
* Small format fixes in str_search
* Added preferred endianess switch in RzUtilStrScanOptions
* Fixed str_search regression tests
