diff options
Diffstat (limited to 'libraries/classparser/src/classparser.cpp')
| -rw-r--r-- | libraries/classparser/src/classparser.cpp | 127 |
1 files changed, 63 insertions, 64 deletions
diff --git a/libraries/classparser/src/classparser.cpp b/libraries/classparser/src/classparser.cpp index 4c7f0fe482..2dd4bdfba2 100644 --- a/libraries/classparser/src/classparser.cpp +++ b/libraries/classparser/src/classparser.cpp @@ -17,7 +17,7 @@ * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. - * + * * This file incorporates work covered by the following copyright and * permission notice: * @@ -46,72 +46,71 @@ namespace classparser { -QString GetMinecraftJarVersion(QString jarName) -{ - QString version; + QString GetMinecraftJarVersion(QString jarName) + { + QString version; - // check if minecraft.jar exists - QFile jar(jarName); - if (!jar.exists()) - return version; + // check if minecraft.jar exists + QFile jar(jarName); + if (!jar.exists()) + return version; - // open jar with libarchive - struct archive *a = archive_read_new(); - archive_read_support_format_zip(a); - if (archive_read_open_filename(a, jarName.toUtf8().constData(), 10240) != ARCHIVE_OK) { - archive_read_free(a); - return version; - } + // open jar with libarchive + struct archive* a = archive_read_new(); + archive_read_support_format_zip(a); + if (archive_read_open_filename(a, jarName.toUtf8().constData(), + 10240) != ARCHIVE_OK) { + archive_read_free(a); + return version; + } - // find and read Minecraft.class - QByteArray classData; - struct archive_entry *entry; - while (archive_read_next_header(a, &entry) == ARCHIVE_OK) { - QString name = QString::fromUtf8(archive_entry_pathname(entry)); - if (name == "net/minecraft/client/Minecraft.class") { - la_int64_t sz = archive_entry_size(entry); - if (sz > 0) { - classData.resize(sz); - archive_read_data(a, classData.data(), sz); - } else { - char buf[8192]; - la_ssize_t r; - while ((r = archive_read_data(a, buf, sizeof(buf))) > 0) - classData.append(buf, r); - } - break; - } - archive_read_data_skip(a); - } - archive_read_free(a); + // find and read Minecraft.class + QByteArray classData; + struct archive_entry* entry; + while (archive_read_next_header(a, &entry) == ARCHIVE_OK) { + QString name = QString::fromUtf8(archive_entry_pathname(entry)); + if (name == "net/minecraft/client/Minecraft.class") { + la_int64_t sz = archive_entry_size(entry); + if (sz > 0) { + classData.resize(sz); + archive_read_data(a, classData.data(), sz); + } else { + char buf[8192]; + la_ssize_t r; + while ((r = archive_read_data(a, buf, sizeof(buf))) > 0) + classData.append(buf, r); + } + break; + } + archive_read_data_skip(a); + } + archive_read_free(a); - if (classData.isEmpty()) - return version; + if (classData.isEmpty()) + return version; - // parse Minecraft.class - try - { - char *temp = classData.data(); - qint64 size = classData.size(); - java::classfile MinecraftClass(temp, size); - java::constant_pool constants = MinecraftClass.constants; - for (java::constant_pool::container_type::const_iterator iter = constants.begin(); - iter != constants.end(); iter++) - { - const java::constant &constant = *iter; - if (constant.type != java::constant_type_t::j_string_data) - continue; - const std::string &str = constant.str_data; - qDebug() << QString::fromStdString(str); - if (str.compare(0, 20, "Minecraft Minecraft ") == 0) - { - version = str.substr(20).data(); - break; - } - } - } - catch (const java::classfile_exception &) { } + // parse Minecraft.class + try { + char* temp = classData.data(); + qint64 size = classData.size(); + java::classfile MinecraftClass(temp, size); + java::constant_pool constants = MinecraftClass.constants; + for (java::constant_pool::container_type::const_iterator iter = + constants.begin(); + iter != constants.end(); iter++) { + const java::constant& constant = *iter; + if (constant.type != java::constant_type_t::j_string_data) + continue; + const std::string& str = constant.str_data; + qDebug() << QString::fromStdString(str); + if (str.compare(0, 20, "Minecraft Minecraft ") == 0) { + version = str.substr(20).data(); + break; + } + } + } catch (const java::classfile_exception&) { + } - return version; -} -} + return version; + } +} // namespace classparser |