diff options
| -rw-r--r-- | default_device.cpp | 2 | ||||
| -rw-r--r-- | device.h | 2 | ||||
| -rw-r--r-- | recovery.cpp | 77 |
3 files changed, 76 insertions, 5 deletions
diff --git a/default_device.cpp b/default_device.cpp index a25f05f8e..97806ac58 100644 --- a/default_device.cpp +++ b/default_device.cpp @@ -31,6 +31,7 @@ static const char* ITEMS[] = {"reboot system now", "wipe cache partition", "reboot to bootloader", "power down", + "view recovery logs", NULL }; class DefaultDevice : public Device { @@ -69,6 +70,7 @@ class DefaultDevice : public Device { case 3: return WIPE_CACHE; case 4: return REBOOT_BOOTLOADER; case 5: return SHUTDOWN; + case 6: return READ_RECOVERY_LASTLOG; default: return NO_ACTION; } } @@ -68,7 +68,7 @@ class Device { enum BuiltinAction { NO_ACTION, REBOOT, APPLY_EXT, APPLY_CACHE, // APPLY_CACHE is deprecated; has no effect APPLY_ADB_SIDELOAD, WIPE_DATA, WIPE_CACHE, - REBOOT_BOOTLOADER, SHUTDOWN }; + REBOOT_BOOTLOADER, SHUTDOWN, READ_RECOVERY_LASTLOG }; // Perform a recovery action selected from the menu. // 'menu_position' will be the item number of the selected menu diff --git a/recovery.cpp b/recovery.cpp index 7f17b16ef..e1a2a9678 100644 --- a/recovery.cpp +++ b/recovery.cpp @@ -77,6 +77,8 @@ static const char *SDCARD_ROOT = "/sdcard"; static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log"; static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install"; +#define KEEP_LOG_COUNT 10 + RecoveryUI* ui = NULL; char* locale = NULL; char recovery_version[PROPERTY_VALUE_MAX+1]; @@ -161,6 +163,12 @@ fopen_path(const char *path, const char *mode) { return fp; } +static void redirect_stdio(const char* filename) { + // If these fail, there's not really anywhere to complain... + freopen(filename, "a", stdout); setbuf(stdout, NULL); + freopen(filename, "a", stderr); setbuf(stderr, NULL); +} + // close a file, log an error if the error indicator is set static void check_and_fclose(FILE *fp, const char *name) { @@ -665,6 +673,65 @@ wipe_data(int confirm, Device* device) { ui->Print("Data wipe complete.\n"); } +static void file_to_ui(const char* fn) { + FILE *fp = fopen_path(fn, "re"); + if (fp == NULL) { + ui->Print(" Unable to open %s: %s\n", fn, strerror(errno)); + return; + } + char line[1024]; + int ct = 0; + redirect_stdio("/dev/null"); + while(fgets(line, sizeof(line), fp) != NULL) { + ui->Print("%s", line); + ct++; + if (ct % 30 == 0) { + // give the user time to glance at the entries + ui->WaitKey(); + } + } + redirect_stdio(TEMPORARY_LOG_FILE); + fclose(fp); +} + +static void choose_recovery_file(Device* device) { + int i; + static const char** title_headers = NULL; + char *filename; + const char* headers[] = { "Select file to view", + "", + NULL }; + char* entries[KEEP_LOG_COUNT + 2]; + memset(entries, 0, sizeof(entries)); + + for (i = 0; i < KEEP_LOG_COUNT; i++) { + char *filename; + if (asprintf(&filename, (i==0) ? LAST_LOG_FILE : (LAST_LOG_FILE ".%d"), i) == -1) { + // memory allocation failure - return early. Should never happen. + return; + } + if ((ensure_path_mounted(filename) != 0) || (access(filename, R_OK) == -1)) { + free(filename); + entries[i+1] = NULL; + break; + } + entries[i+1] = filename; + } + + entries[0] = strdup("Go back"); + title_headers = prepend_title((const char**)headers); + + while(1) { + int chosen_item = get_menu_selection(title_headers, entries, 1, 0, device); + if (chosen_item == 0) break; + file_to_ui(entries[chosen_item]); + } + + for (i = 0; i < KEEP_LOG_COUNT + 1; i++) { + free(entries[i]); + } +} + // Return REBOOT, SHUTDOWN, or REBOOT_BOOTLOADER. Returning NO_ACTION // means to take the default, which is to reboot or shutdown depending // on if the --shutdown_after flag was passed to recovery. @@ -760,6 +827,10 @@ prompt_and_wait(Device* device, int status) { ui->Print("\nAPPLY_CACHE is deprecated.\n"); break; + case Device::READ_RECOVERY_LASTLOG: + choose_recovery_file(device); + break; + case Device::APPLY_ADB_SIDELOAD: status = apply_from_adb(ui, &wipe_cache, TEMPORARY_INSTALL_FILE); if (status >= 0) { @@ -824,9 +895,7 @@ int main(int argc, char **argv) { time_t start = time(NULL); - // If these fail, there's not really anywhere to complain... - freopen(TEMPORARY_LOG_FILE, "a", stdout); setbuf(stdout, NULL); - freopen(TEMPORARY_LOG_FILE, "a", stderr); setbuf(stderr, NULL); + redirect_stdio(TEMPORARY_LOG_FILE); // If this binary is started with the single argument "--adbd", // instead of being the normal recovery binary, it turns into kind @@ -844,7 +913,7 @@ main(int argc, char **argv) { load_volume_table(); ensure_path_mounted(LAST_LOG_FILE); - rotate_last_logs(10); + rotate_last_logs(KEEP_LOG_COUNT); get_args(&argc, &argv); const char *send_intent = NULL; |