android-7.0

22 files changed, 74 insertions, 56 deletions

diff --git a/gui/theme/common/languages/cz.xml b/gui/theme/common/languages/cz.xml
index 9d6ade658..83cd0b2cf 100644
--- a/gui/theme/common/languages/cz.xml
+++ b/gui/theme/common/languages/cz.xml
@@ -542,6 +542,7 @@
 		<string name="unable_resize">Nelze natáhnout {1}.</string>
 		<string name="no_md5_found">Soubor MD5 se nenašel pro \'{1}\'. Prosím zvolte Vypnout kontrolu MD5 během obnovy.</string>
 		<string name="md5_fail_match">MD5 neodpovídá souboru \'{1}\'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Nelze dešifrovat soubor tar \'{1}\'</string>
 		<string name="format_data_msg">Měli by jste restartovat recovery aby jste mohli znova používat /data.</string>
 		<string name="format_data_err">Nelze formátovat pro zrušení šifrování.</string>
diff --git a/gui/theme/common/languages/de.xml b/gui/theme/common/languages/de.xml
index d0946f57b..0fc8fcc38 100644
--- a/gui/theme/common/languages/de.xml
+++ b/gui/theme/common/languages/de.xml
@@ -572,6 +572,7 @@
 		<string name="unable_resize">Größe von {1} kann nicht geändert werden.</string>
 		<string name="no_md5_found">Keine MD5-Datei für '{1}' gefunden. Bitte MD5-Prüfung für Wiederherstellung deaktivieren.</string>
 		<string name="md5_fail_match">MD5-Prüfung für '{1}' fehlgeschlagen.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">TAR-Datei '{1}' konnte nicht entschlüsselt werden.</string>
 		<string name="format_data_msg">Ein Neustart von TWRP kann notwendig sein, damit /data wieder verwendet werden kann.</string>
 		<string name="format_data_err">Formatierung zum Entfernen der Verschlüsselung kann nicht durchgeführt werden.</string>
diff --git a/gui/theme/common/languages/el.xml b/gui/theme/common/languages/el.xml
index 7a939fb61..7ec4d15a7 100644
--- a/gui/theme/common/languages/el.xml
+++ b/gui/theme/common/languages/el.xml
@@ -552,6 +552,7 @@
         <string name="unable_resize">Δεν είναι δυνατή η αλλαγή μεγέθους {1}.</string>
         <string name="no_md5_found">Δεν βρέθηκε MD5 αρχείο για το '{1}'. Παρακαλώ απεπηλέξτε την επαλήθευση MD5 για επαναφορά.</string>
         <string name="md5_fail_match">Το MD5 απέτυχε να ταυτίσει με το '{1}'.</string>
+        <string name="md5_matched">MD5 matched for '{1}'.</string>
         <string name="fail_decrypt_tar">Αποτυχία αποκρυπτογράφησης του αρχείου tar '{1}'</string>
         <string name="format_data_msg">Ίσως χρειαστεί να επανεκκινήσετε στο recovery για να ξαναχρησιμοποιήσετε το /data.</string>
         <string name="format_data_err">Αδύνατη η διαμόρφωση για να καταργήσετε την κρυπτογράφηση.</string>
diff --git a/gui/theme/common/languages/en.xml b/gui/theme/common/languages/en.xml
index 0a89083d1..6b05a8613 100644
--- a/gui/theme/common/languages/en.xml
+++ b/gui/theme/common/languages/en.xml
@@ -572,6 +572,7 @@
 		<string name="unable_resize">Unable to resize {1}.</string>
 		<string name="no_md5_found">No md5 file found for '{1}'. Please unselect Enable MD5 verification to restore.</string>
 		<string name="md5_fail_match">MD5 failed to match on '{1}'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Failed to decrypt tar file '{1}'</string>
 		<string name="format_data_msg">You may need to reboot recovery to be able to use /data again.</string>
 		<string name="format_data_err">Unable to format to remove encryption.</string>
diff --git a/gui/theme/common/languages/es.xml b/gui/theme/common/languages/es.xml
index 0b15108d3..6fd693906 100644
--- a/gui/theme/common/languages/es.xml
+++ b/gui/theme/common/languages/es.xml
@@ -555,6 +555,7 @@
 		<string name="unable_resize">Incapaz de cambiar el tamaño de archivo de {1}.</string>
 		<string name="no_md5_found">No se encuentra archivo md5 para \'{1}\'. Por favor, deselecciona Activar verificación de MD5 para restaurar.</string>
 		<string name="md5_fail_match">MD5 no coincide en \'{1}\'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Fallo al desencriptar el archivo tar '{1}'</string>
 		<string name="format_data_msg">Quizás necesites reiniciar el recovery para ser capaz de usar /data de nuevo.</string>
 		<string name="format_data_err">Incapaz de formatear para remover encriptación.</string>
diff --git a/gui/theme/common/languages/fr.xml b/gui/theme/common/languages/fr.xml
index a1891ad4a..f38446110 100644
--- a/gui/theme/common/languages/fr.xml
+++ b/gui/theme/common/languages/fr.xml
@@ -553,7 +553,8 @@
         <string name="repair_resize">Réparation de {1} avant de redimensionner.</string>
         <string name="unable_resize">Incapable de redimensionner {1}.</string>
         <string name="no_md5_found">Pas de fichier md5 trouvé pour '{1}'. Veuillez désactiver la vérification MD5 pour effectuer la restauration.</string>
-        <string name="md5_fail_match">Le MD5 ne corresponds pas pour '{1}'.</string>
+        <string name="md5_fail_match">Le MD5 ne correspond pas pour '{1}'.</string>
+        <string name="md5_matched">Le MD5 correspond pour '{1}'.</string>
         <string name="restoring">Restauration en cours</string>
         <string name="format_data_msg">Vous aurez peut-être à redémarrer pour pouvoir utiliser /data à nouveau.</string>
         <string name="format_data_err">Incapable de formater pour enlever l'encryption.</string>
diff --git a/gui/theme/common/languages/hu.xml b/gui/theme/common/languages/hu.xml
index a8b525a0a..ce142189b 100644
--- a/gui/theme/common/languages/hu.xml
+++ b/gui/theme/common/languages/hu.xml
@@ -572,6 +572,7 @@
 		<string name="unable_resize">Nem lehet átméretezni: {1}.</string>
 		<string name="no_md5_found">Nem található MD5 fájl ehhez: \'{1}\'. Kérjük, a visszaállításhoz szüntesse meg a kijelölést: \"MD5 ellenőrzés engedélyezése\".</string>
 		<string name="md5_fail_match">MD5 nem egyezik ezzel: \'{1}\'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Nem sikerült visszafejteni a(z) \'{1}\' tar fájlt</string>
 		<string name="format_data_msg">Lehet, hogy a recovery-be kell újraindítania ahhoz, hogy képes legyen használni az /adat partíciót.</string>
 		<string name="format_data_err">Nem sikerült formázni a titkosítás eltávolításához.</string>
diff --git a/gui/theme/common/languages/it.xml b/gui/theme/common/languages/it.xml
index 30ba8bbe0..24c8ba074 100644
--- a/gui/theme/common/languages/it.xml
+++ b/gui/theme/common/languages/it.xml
@@ -572,6 +572,7 @@
 		<string name="unable_resize">Impossibile ridimensionare {1}.</string>
 		<string name="no_md5_found">Nessun MD5 trovato per '{1}'. Deseleziona "Abilita verifica MD5" per procedere con il ripristino.</string>
 		<string name="md5_fail_match">Il valore MD5 non corrisponde per '{1}'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Decriptazione fallita per il file Tar '{1}'</string>
 		<string name="format_data_msg">Potresti dover riavviare la Recovery per accedere nuovamente a Data.</string>
 		<string name="format_data_err">Impossibile formattare al fine di rimuovere la crittografia.</string>
diff --git a/gui/theme/common/languages/nl.xml b/gui/theme/common/languages/nl.xml
index cb03d1096..340ce6d24 100644
--- a/gui/theme/common/languages/nl.xml
+++ b/gui/theme/common/languages/nl.xml
@@ -572,6 +572,7 @@
 		<string name="unable_resize">Kan de grootte van {1} niet wijzigen.</string>
 		<string name="no_md5_found">Geen md5 bestand gevonden voor \'{1}\'. Gelieve MD5 controle inschakelen uitzetten om te herstellen.</string>
 		<string name="md5_fail_match">MD5 vergelijken mislukt op \'{1}\'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Het decoderen van tar bestand \'{1}\' is mislukt</string>
 		<string name="format_data_msg">U zou in recovery moeten herstarten om /data opnieuw te kunnen gebruiken.</string>
 		<string name="format_data_err">Kan niet formatteren om encryptie te verwijderen.</string>
diff --git a/gui/theme/common/languages/pl.xml b/gui/theme/common/languages/pl.xml
index b28a488b2..7721421a4 100644
--- a/gui/theme/common/languages/pl.xml
+++ b/gui/theme/common/languages/pl.xml
@@ -572,6 +572,7 @@
 		<string name="unable_resize">Nie można zmienić rozmiaru {1}.</string>
 		<string name="no_md5_found">Nie znaleziono pliku MD5 '{1}'. Proszę wyłączyć weryfikację MD5, aby przywrócić.</string>
 		<string name="md5_fail_match">MD5 nie pasuje do '{1}'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Nie udało się odszyfrować pliku tar '{1}'</string>
 		<string name="format_data_msg">Może być konieczne ponowne uruchomienie recovery, aby móc ponownie użyć /date.</string>
 		<string name="format_data_err">Nie można sformatować, aby usunąć szyfrowanie.</string>
diff --git a/gui/theme/common/languages/pt_BR.xml b/gui/theme/common/languages/pt_BR.xml
index 23c0f804d..f747631cb 100644
--- a/gui/theme/common/languages/pt_BR.xml
+++ b/gui/theme/common/languages/pt_BR.xml
@@ -542,6 +542,7 @@
 		<string name="unable_resize">Não é possível redimensionar {1}.</string>
 		<string name="no_md5_found">Nenhum arquivo md5 foi encontrado para \'{1}\'. Por favor, cancelar a seleção de verificação MD5 habilitar para restaurar.</string>
 		<string name="md5_fail_match">MD5 não conseguiram corresponder na \'{1}\'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Falha ao descriptografar arquivo tar \'{1}\'</string>
 		<string name="format_data_msg">Você pode precisar reiniciar recuperação para ser capaz de usar /data novamente.</string>
 		<string name="format_data_err">Não é possível formatar para remover a criptografia.</string>
diff --git a/gui/theme/common/languages/ru.xml b/gui/theme/common/languages/ru.xml
index 485d1e85b..8be304541 100644
--- a/gui/theme/common/languages/ru.xml
+++ b/gui/theme/common/languages/ru.xml
@@ -573,6 +573,7 @@
 		<string name="unable_resize">Не удается изменить размер {1}.</string>
 		<string name="no_md5_found">Отсутствует файл md5 для '{1}'. Пожалуйста отмените выбор проверки MD5 при восстановлении.</string>
 		<string name="md5_fail_match">MD5 не соответствует для '{1}'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Не удается расшифровать tar-файл '{1}'</string>
 		<string name="format_data_msg">Вам, возможно, потребуется перезагрузись рекавери, чтобы иметь возможность использовать /data снова.</string>
 		<string name="format_data_err">Невозможно отформатировать и удалить шифрование.</string>
diff --git a/gui/theme/common/languages/sk.xml b/gui/theme/common/languages/sk.xml
index 544a12260..4773579fd 100644
--- a/gui/theme/common/languages/sk.xml
+++ b/gui/theme/common/languages/sk.xml
@@ -542,6 +542,7 @@
 		<string name="unable_resize">Nemožno natiahnuť {1}.</string>
 		<string name="no_md5_found">Súbor MD5 sa nenašiel pre \'{1}\'. Prosím zvoľte Vypnúť kontrolu MD5 počas obnovy.</string>
 		<string name="md5_fail_match">MD5 nezodpovedá súboru \'{1}\'.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Nemožno dešifrovať súbor tar \'{1}\'</string>
 		<string name="format_data_msg">Mali by ste reštartovať recovery aby ste mohli znova používať /data.</string>
 		<string name="format_data_err">Nemožno formátovať pre zrušenie šifrovania.</string>
diff --git a/gui/theme/common/languages/sl.xml b/gui/theme/common/languages/sl.xml
index 8b120156e..2bf2ffe7b 100644
--- a/gui/theme/common/languages/sl.xml
+++ b/gui/theme/common/languages/sl.xml
@@ -542,6 +542,7 @@
 		<string name="unable_resize">Velikosti {1} ni mogoče spremeniti.</string>
 		<string name="no_md5_found">Za \'{1}\' ni bilo najdene datoteke MD5.  Odstranite izbiro \'Omogoči preverjanje razpršila MD5\' za obnovitev.</string>
 		<string name="md5_fail_match">Ujemanje razpršila MD5 na \'{1}\' je spodletelo.</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">Odšifriranje datoteke TAR \'{1}\' je spodletelo</string>
 		<string name="format_data_msg">Za ponovno uporabo /data boste morda morali ponovno zagnati obnovitev.</string>
 		<string name="format_data_err">Formatiranje za odstranitev šifriranja ni mogoče.</string>
diff --git a/gui/theme/extra-languages/languages/ja.xml b/gui/theme/extra-languages/languages/ja.xml
index 8b1973f31..552665e96 100644
--- a/gui/theme/extra-languages/languages/ja.xml
+++ b/gui/theme/extra-languages/languages/ja.xml
@@ -566,6 +566,7 @@
 		<string name="unable_resize">{1} をリサイズできません。</string>
 		<string name="no_md5_found">\'{1}\' の MD5 ファイルが見つかりません。リストアするには MD5 の検証を無効化してください。</string>
 		<string name="md5_fail_match">\'{1}\' で MD5 が一致しません。</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">tar ファイル '{1}' を復号できませんでした</string>
 		<string name="format_data_msg">/data を再度使用するにはリカバリを再起動してください。</string>
 		<string name="format_data_err">暗号化を解除するための初期化ができません。</string>
diff --git a/gui/theme/extra-languages/languages/zh_CN.xml b/gui/theme/extra-languages/languages/zh_CN.xml
index 0d8bfd3a8..ef2042f63 100644
--- a/gui/theme/extra-languages/languages/zh_CN.xml
+++ b/gui/theme/extra-languages/languages/zh_CN.xml
@@ -571,6 +571,7 @@
 		<string name="unable_resize">无法修改 {1} 大小。</string>
 		<string name="no_md5_found">无法为 '{1}' 找到 MD5 校验文件。请取消允许 MD5 校验选项。</string>
 		<string name="md5_fail_match">MD5 校验失败 '{1}'。</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">解密 tar 文件 '{1}' 失败</string>
 		<string name="format_data_msg">你可能需要重启 recovery 才能使用/data。</string>
 		<string name="format_data_err">无法格式化并删除加密。</string>
diff --git a/gui/theme/extra-languages/languages/zh_TW.xml b/gui/theme/extra-languages/languages/zh_TW.xml
index b7d6b1e7a..860b6cc27 100644
--- a/gui/theme/extra-languages/languages/zh_TW.xml
+++ b/gui/theme/extra-languages/languages/zh_TW.xml
@@ -571,6 +571,7 @@
 		<string name="unable_resize">無法調整{1}大小。</string>
 		<string name="no_md5_found">未找到'{1}'MD5校驗檔案，請取消“啟用MD5校驗備份檔案”選項。</string>
 		<string name="md5_fail_match">'{1}' MD5校驗失敗。</string>
+		<string name="md5_matched">MD5 matched for '{1}'.</string>
 		<string name="fail_decrypt_tar">無法解密tar檔案：'{1}'</string>
 		<string name="format_data_msg">您可能需要重啟recovery才能使用/data。</string>
 		<string name="format_data_err">無法格式化並刪除加密。</string>
diff --git a/partition.cpp b/partition.cpp
index f22a283df..d6cadf902 100644
--- a/partition.cpp
+++ b/partition.cpp
@@ -1612,52 +1612,48 @@ bool TWPartition::Backup(PartitionSettings *part_settings, pid_t *tar_fork_pid)
 	return false;
 }
 
+bool TWPartition::Check_Restore_File_MD5(const string& Filename) {
+	twrpDigest md5sum;
+
+	md5sum.setfn(Filename);
+	switch (md5sum.verify_md5digest()) {
+	case MD5_OK:
+		gui_msg(Msg("md5_matched=MD5 matched for '{1}'.")(Filename));
+		return true;
+	case MD5_FILE_UNREADABLE:
+	case MD5_NOT_FOUND:
+		gui_msg(Msg(msg::kError, "no_md5_found=No md5 file found for '{1}'. Please unselect Enable MD5 verification to restore.")(Filename));
+		break;
+	case MD5_MATCH_FAIL:
+		gui_msg(Msg(msg::kError, "md5_fail_match=MD5 failed to match on '{1}'.")(Filename));
+		break;
+	}
+	return false;
+}
+
 bool TWPartition::Check_MD5(PartitionSettings *part_settings) {
-	string Full_Filename, md5file;
+	string Full_Filename;
 	char split_filename[512];
 	int index = 0;
-	twrpDigest md5sum;
 
 	sync();
 
-	memset(split_filename, 0, sizeof(split_filename));
 	Full_Filename = part_settings->Backup_Folder + "/" + Backup_FileName;
 	if (!TWFunc::Path_Exists(Full_Filename)) {
 		// This is a split archive, we presume
-		sprintf(split_filename, "%s%03i", Full_Filename.c_str(), index);
-		LOGINFO("split_filename: %s\n", split_filename);
-		md5file = split_filename;
-		md5file += ".md5";
-		if (!TWFunc::Path_Exists(md5file)) {
-			gui_msg(Msg(msg::kError, "no_md5_found=No md5 file found for '{1}'. Please unselect Enable MD5 verification to restore.")(split_filename));
-			return false;
-		}
-		md5sum.setfn(split_filename);
+		memset(split_filename, 0, sizeof(split_filename));
 		while (index < 1000) {
-			if (TWFunc::Path_Exists(split_filename) && md5sum.verify_md5digest() != 0) {
-				gui_msg(Msg(msg::kError, "md5_fail_match=MD5 failed to match on '{1}'.")(split_filename));
+			sprintf(split_filename, "%s%03i", Full_Filename.c_str(), index);
+			if (!TWFunc::Path_Exists(split_filename))
+				break;
+			LOGINFO("split_filename: %s\n", split_filename);
+			if (!Check_Restore_File_MD5(split_filename))
 				return false;
-			}
 			index++;
-			sprintf(split_filename, "%s%03i", Full_Filename.c_str(), index);
-			md5sum.setfn(split_filename);
 		}
 		return true;
-	} else {
-		// Single file archive
-		md5file = Full_Filename + ".md5";
-		if (!TWFunc::Path_Exists(md5file)) {
-			gui_msg(Msg(msg::kError, "no_md5_found=No md5 file found for '{1}'. Please unselect Enable MD5 verification to restore.")(md5file));
-			return false;
-		}
-		md5sum.setfn(Full_Filename);
-		if (md5sum.verify_md5digest() != 0) {
-			gui_msg(Msg(msg::kError, "md5_fail_match=MD5 failed to match on '{1}'.")(split_filename));
-			return false;
-		} else
-			return true;
 	}
-	return false;
+	return Check_Restore_File_MD5(Full_Filename); // Single file archive
 }
 
 bool TWPartition::Restore(PartitionSettings *part_settings) {
diff --git a/partitions.hpp b/partitions.hpp
index e301d9c70..4b9354fd8 100644
--- a/partitions.hpp
+++ b/partitions.hpp
@@ -156,6 +156,7 @@ private:
 	string Get_Restore_File_System(PartitionSettings *part_settings);         // Returns the file system that was in place at the time of the backup
 	bool Restore_Tar(PartitionSettings *part_settings);                       // Restore using tar for file systems
 	bool Restore_Image(PartitionSettings *part_settings);                     // Restore using dd for images
+	bool Check_Restore_File_MD5(const string& Filename);                      // Verifies MD5 matches for a file before restoration
 	bool Get_Size_Via_statfs(bool Display_Error);                             // Get Partition size, used, and free space using statfs
 	bool Get_Size_Via_df(bool Display_Error);                                 // Get Partition size, used, and free space using df command
 	bool Make_Dir(string Path, bool Display_Error);                           // Creates a directory if it doesn't already exist
diff --git a/twinstall.cpp b/twinstall.cpp
index c2f98febc..50d286c45 100644
--- a/twinstall.cpp
+++ b/twinstall.cpp
@@ -296,9 +296,18 @@ extern "C" int TWinstall_zip(const char* path, int* wipe_cache) {
 		gui_msg("check_for_md5=Checking for MD5 file...");
 		twrpDigest md5sum;
 		md5sum.setfn(path);
-		int md5_return = md5sum.verify_md5digest();
-		if (md5_return == -2) { // md5 did not match
-			LOGERR("Aborting zip install\n");
+		switch (md5sum.verify_md5digest()) {
+		case MD5_OK:
+			gui_msg(Msg("md5_matched=MD5 matched for '{1}'.")(path));
+			break;
+		case MD5_NOT_FOUND:
+			gui_msg("no_md5=Skipping MD5 check: no MD5 file found");
+			break;
+		case MD5_FILE_UNREADABLE:
+			LOGERR("Skipping MD5 check: MD5 file unreadable\n");
+			break;
+		case MD5_MATCH_FAIL: // md5 did not match
+			LOGERR("Aborting zip install: MD5 verification failed\n");
 			return INSTALL_CORRUPT;
 		}
 	}
diff --git a/twrpDigest.cpp b/twrpDigest.cpp
index ab8f456f5..d1217cb6a 100644
--- a/twrpDigest.cpp
+++ b/twrpDigest.cpp
@@ -91,7 +91,7 @@ int twrpDigest::computeMD5(void) {
 	initMD5();
 	file = fopen(md5fn.c_str(), "rb");
 	if (file == NULL)
-		return -1;
+		return MD5_NOT_FOUND;
 	while ((len = fread(buf, 1, sizeof(buf), file)) > 0) {
 		MD5Update(&md5c, buf, len);
 	}
@@ -128,24 +128,14 @@ int twrpDigest::read_md5digest(void) {
 		i++;
 	}
 
-	if (!foundMd5File) {
-		gui_msg("no_md5=Skipping MD5 check: no MD5 file found");
-		return -1;
-	} else if (TWFunc::read_file(md5file, line) != 0) {
-		LOGERR("Skipping MD5 check: MD5 file unreadable %s\n", strerror(errno));
-		return 1;
-	}
+	if (!foundMd5File)
+		return MD5_NOT_FOUND;
+	if (TWFunc::read_file(md5file, line) != 0)
+		return MD5_FILE_UNREADABLE;
 
 	return 0;
 }
 
-/* verify_md5digest return codes:
-	-2: md5 did not match
-	-1: no md5 file found
-	 0: md5 matches
-	 1: md5 file unreadable
-*/
-
 int twrpDigest::verify_md5digest(void) {
 	string buf;
 	char hex[3];
@@ -164,11 +154,8 @@ int twrpDigest::verify_md5digest(void) {
 		snprintf(hex, 3, "%02x", md5sum[i]);
 		md5str += hex;
 	}
-	if (tokens.at(0) != md5str) {
-		gui_err("md5_fail=MD5 does not match");
-		return -2;
-	}
+	if (tokens.at(0) != md5str)
+		return MD5_MATCH_FAIL;
 
-	gui_msg("md5_match=MD5 matched");
-	return 0;
+	return MD5_OK;
 }
diff --git a/twrpDigest.hpp b/twrpDigest.hpp
index 7ec25edad..ec4a65f75 100644
--- a/twrpDigest.hpp
+++ b/twrpDigest.hpp
@@ -20,6 +20,14 @@ extern "C" {
 	#include "digest/md5.h"
 }
 
+/* verify_md5digest return codes */
+enum {
+	MD5_MATCH_FAIL = -2, // -2: md5 did not match
+	MD5_NOT_FOUND,       // -1: no md5 file found
+	MD5_OK,              //  0: md5 matches
+	MD5_FILE_UNREADABLE  //  1: md5 file unreadable
+};
+
 using namespace std;
 
 class twrpDigest