ladybird/Userland/Utilities/fgrep.cpp
sin-ack c70f45ff44 Everywhere: Explicitly specify the size in StringView constructors
This commit moves the length calculations out to be directly on the
StringView users. This is an important step towards the goal of removing
StringView(char const*), as it moves the responsibility of calculating
the size of the string to the user of the StringView (which will prevent
naive uses causing OOB access).
2022-07-12 23:11:35 +02:00

30 lines
771 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "AK/String.h"
#include <AK/Assertions.h>
#include <AK/Format.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <stdio.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (arguments.strings.size() < 2) {
warnln("usage: fgrep <str>");
return 1;
}
for (;;) {
char buffer[4096];
fgets(buffer, sizeof(buffer), stdin);
auto str = StringView { buffer, strlen(buffer) };
if (str.contains(arguments.strings[1]))
TRY(Core::System::write(1, str.bytes()));
if (feof(stdin))
return 0;
VERIFY(str.to_string().characters());
}
}