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tail: Use File::seek() to determine seekability

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Some change in the past made `File::tell()` not return an error if
a file is not seekable. So instead do a real seek to check.
This commit is contained in:
Fabian Dellwing 2024-02-13 19:57:28 +01:00 • committed by Jelle Raaijmakers
parent d375b5c2a5
commit 7beabc8e91
1 changed files with 1 additions and 1 deletions
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2
Userland/Utilities/tail.cpp
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@ -62,7 +62,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
if (!follow)
TRY(Core::System::pledge("stdio"));
auto file_is_seekable = !f->tell().is_error();
auto file_is_seekable = !f->seek(0, SeekMode::SetPosition).is_error();
if (!file_is_seekable) {
do {
// FIXME: If f is the standard input, f->read_all() does not block