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mount: Report error instead of crashing on failure
Being unable to `open` on the source caused mount to crash. The error is now properly reported to the user.
This commit is contained in:
parent
6c86b40724
commit
b8c42365f0
Notes:
sideshowbarker
2024-07-17 06:25:28 +09:00
Author: https://github.com/LucasChollet Commit: https://github.com/SerenityOS/serenity/commit/b8c42365f0 Pull-request: https://github.com/SerenityOS/serenity/pull/15417 Issue: https://github.com/SerenityOS/serenity/issues/15048
@ -51,20 +51,14 @@ static bool is_source_none(StringView source)
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return source == "none"sv;
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}
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static int get_source_fd(StringView source)
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static ErrorOr<int> get_source_fd(StringView source)
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{
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if (is_source_none(source))
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return -1;
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auto fd_or_error = Core::System::open(source, O_RDWR);
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if (fd_or_error.is_error())
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fd_or_error = Core::System::open(source, O_RDONLY);
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if (fd_or_error.is_error()) {
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int saved_errno = errno;
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auto message = String::formatted("Failed to open: {}\n", source);
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errno = saved_errno;
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perror(message.characters());
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}
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return fd_or_error.release_value();
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return fd_or_error;
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}
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static bool mount_by_line(String const& line)
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@ -90,7 +84,12 @@ static bool mount_by_line(String const& line)
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auto filename = parts[0];
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int fd = get_source_fd(filename);
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auto fd_or_error = get_source_fd(filename);
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if (fd_or_error.is_error()) {
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outln("{}", fd_or_error.release_error());
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return false;
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}
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auto const fd = fd_or_error.release_value();
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dbgln("Mounting {} ({}) on {}", filename, fstype, mountpoint);
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@ -222,7 +221,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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fs_type = "ext2"sv;
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int flags = !options.is_empty() ? parse_options(options) : 0;
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int fd = get_source_fd(source);
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int const fd = TRY(get_source_fd(source));
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TRY(Core::System::mount(fd, mountpoint, fs_type, flags));
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