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cksum: Port to Core::Stream

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Sam Atkins 2022-09-20 11:58:46 +01:00 committed by Linus Groh
parent d071a93047
commit 83366e2b2e
Notes: sideshowbarker 2024-07-17 04:17:40 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/83366e2b2e
Pull-request: https://github.com/SerenityOS/serenity/pull/15244
Reviewed-by: https://github.com/davidot ✅
Reviewed-by: https://github.com/demostanis
1 changed files with 30 additions and 19 deletions
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49
Userland/Utilities/cksum.cpp
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@ -5,7 +5,8 @@
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibCore/Stream.h>
#include <LibCore/System.h>
#include <LibCrypto/Checksum/Adler32.h>
#include <LibCrypto/Checksum/CRC32.h>
#include <LibMain/Main.h>
@ -42,38 +43,48 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
paths.append("-");
bool fail = false;
Array<u8, PAGE_SIZE> buffer;
for (auto& path : paths) {
auto file_or_error = Core::Stream::File::open_file_or_standard_stream(path, Core::Stream::OpenMode::Read);
auto filepath = (path == "-") ? "/dev/stdin" : path;
auto file = Core::File::construct(filepath);
if (!file->open(Core::OpenMode::ReadOnly)) {
warnln("{}: {}: {}", arguments.strings[0], path, file->error_string());
if (file_or_error.is_error()) {
warnln("{}: {}: {}", arguments.strings[0], filepath, file_or_error.error());
fail = true;
continue;
}
struct stat st;
if (fstat(file->fd(), &st) < 0) {
warnln("{}: Failed to fstat {}: {}", arguments.strings[0], filepath, strerror(errno));
auto file = file_or_error.release_value();
auto stat_or_error = Core::System::stat(filepath);
if (stat_or_error.is_error()) {
warnln("{}: Failed to fstat {}: {}", arguments.strings[0], filepath, stat_or_error.error());
fail = true;
continue;
}
auto st = stat_or_error.release_value();
if (algorithm == "crc32") {
Crypto::Checksum::CRC32 crc32;
while (!file->eof() && !file->has_error())
crc32.update(file->read(PAGE_SIZE));
if (file->has_error()) {
warnln("{}: Failed to read {}: {}", arguments.strings[0], filepath, file->error_string());
fail = true;
continue;
while (!file->is_eof()) {
auto data_or_error = file->read(buffer);
if (data_or_error.is_error()) {
warnln("{}: Failed to read {}: {}", arguments.strings[0], filepath, data_or_error.error());
fail = true;
continue;
}
crc32.update(data_or_error.value());
}
outln("{:08x} {} {}", crc32.digest(), st.st_size, path);
} else if (algorithm == "adler32") {
Crypto::Checksum::Adler32 adler32;
while (!file->eof() && !file->has_error())
adler32.update(file->read(PAGE_SIZE));
if (file->has_error()) {
warnln("{}: Failed to read {}: {}", arguments.strings[0], filepath, file->error_string());
fail = true;
continue;
while (!file->is_eof()) {
auto data_or_error = file->read(buffer);
if (data_or_error.is_error()) {
warnln("{}: Failed to read {}: {}", arguments.strings[0], filepath, data_or_error.error());
fail = true;
continue;
}
adler32.update(data_or_error.value());
}
outln("{:08x} {} {}", adler32.digest(), st.st_size, path);
} else {