auto import from //depot/cupcake/@135843
diff --git a/tools/Android.mk b/tools/Android.mk
new file mode 100644
index 0000000..6571161
--- /dev/null
+++ b/tools/Android.mk
@@ -0,0 +1 @@
+include $(all-subdir-makefiles)
diff --git a/tools/ota/Android.mk b/tools/ota/Android.mk
new file mode 100644
index 0000000..b7a57d6
--- /dev/null
+++ b/tools/ota/Android.mk
@@ -0,0 +1,42 @@
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := make-update-script
+LOCAL_SRC_FILES := make-update-script.c
+include $(BUILD_HOST_EXECUTABLE)
+
+ifneq ($(TARGET_SIMULATOR),true)
+
+include $(CLEAR_VARS)
+LOCAL_FORCE_STATIC_EXECUTABLE := true
+LOCAL_MODULE := add-property-tag
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+LOCAL_MODULE_TAGS := debug
+LOCAL_SRC_FILES := add-property-tag.c
+LOCAL_STATIC_LIBRARIES := libc
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_FORCE_STATIC_EXECUTABLE := true
+LOCAL_MODULE := check-lost+found
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+LOCAL_MODULE_TAGS := debug
+LOCAL_SRC_FILES := check-lost+found.c
+LOCAL_STATIC_LIBRARIES := libcutils libc
+include $(BUILD_EXECUTABLE)
+
+endif # !TARGET_SIMULATOR
diff --git a/tools/ota/add-property-tag.c b/tools/ota/add-property-tag.c
new file mode 100644
index 0000000..5277edd
--- /dev/null
+++ b/tools/ota/add-property-tag.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * Append a tag to a property value in a .prop file if it isn't already there.
+ * Normally used to modify build properties to record incremental updates.
+ */
+
+// Return nonzero if the tag should be added to this line.
+int should_tag(const char *line, const char *propname) {
+ const char *prop = strstr(line, propname);
+ if (prop == NULL) return 0;
+
+ // Make sure this is actually the property name (not an accidental hit)
+ const char *ptr;
+ for (ptr = line; ptr < prop && isspace(*ptr); ++ptr) ;
+ if (ptr != prop) return 0; // Must be at the beginning of the line
+
+ for (ptr += strlen(propname); *ptr != '\0' && isspace(*ptr); ++ptr) ;
+ return (*ptr == '='); // Must be followed by a '='
+}
+
+// Remove existing tags from the line, return the following number (if any)
+int remove_tag(char *line, const char *tag) {
+ char *pos = strstr(line, tag);
+ if (pos == NULL) return 0;
+
+ char *end;
+ int num = strtoul(pos + strlen(tag), &end, 10);
+ strcpy(pos, end);
+ return num;
+}
+
+// Write line to output with the tag added, adding a number (if >0)
+void write_tagged(FILE *out, const char *line, const char *tag, int number) {
+ const char *end = line + strlen(line);
+ while (end > line && isspace(end[-1])) --end;
+ if (number > 0) {
+ fprintf(out, "%.*s%s%d%s", end - line, line, tag, number, end);
+ } else {
+ fprintf(out, "%.*s%s%s", end - line, line, tag, end);
+ }
+}
+
+int main(int argc, char **argv) {
+ const char *filename = "/system/build.prop";
+ const char *propname = "ro.build.fingerprint";
+ const char *tag = NULL;
+ int do_remove = 0, do_number = 0;
+
+ int opt;
+ while ((opt = getopt(argc, argv, "f:p:rn")) != -1) {
+ switch (opt) {
+ case 'f': filename = optarg; break;
+ case 'p': propname = optarg; break;
+ case 'r': do_remove = 1; break;
+ case 'n': do_number = 1; break;
+ case '?': return 2;
+ }
+ }
+
+ if (argc != optind + 1) {
+ fprintf(stderr,
+ "usage: add-property-tag [flags] tag-to-add\n"
+ "flags: -f /dir/file.prop (default /system/build.prop)\n"
+ " -p prop.name (default ro.build.fingerprint)\n"
+ " -r (if set, remove the tag rather than adding it)\n"
+ " -n (if set, add and increment a number after the tag)\n");
+ return 2;
+ }
+
+ tag = argv[optind];
+ FILE *input = fopen(filename, "r");
+ if (input == NULL) {
+ fprintf(stderr, "can't read %s: %s\n", filename, strerror(errno));
+ return 1;
+ }
+
+ char tmpname[PATH_MAX];
+ snprintf(tmpname, sizeof(tmpname), "%s.tmp", filename);
+ FILE *output = fopen(tmpname, "w");
+ if (output == NULL) {
+ fprintf(stderr, "can't write %s: %s\n", tmpname, strerror(errno));
+ return 1;
+ }
+
+ int found = 0;
+ char line[4096];
+ while (fgets(line, sizeof(line), input)) {
+ if (!should_tag(line, propname)) {
+ fputs(line, output); // Pass through unmodified
+ } else {
+ found = 1;
+ int number = remove_tag(line, tag);
+ if (do_remove) {
+ fputs(line, output); // Remove the tag but don't re-add it
+ } else {
+ write_tagged(output, line, tag, number + do_number);
+ }
+ }
+ }
+
+ fclose(input);
+ fclose(output);
+
+ if (!found) {
+ fprintf(stderr, "property %s not found in %s\n", propname, filename);
+ remove(tmpname);
+ return 1;
+ }
+
+ if (rename(tmpname, filename)) {
+ fprintf(stderr, "can't rename %s to %s: %s\n",
+ tmpname, filename, strerror(errno));
+ remove(tmpname);
+ return 1;
+ }
+
+ return 0;
+}
diff --git a/tools/ota/check-lost+found.c b/tools/ota/check-lost+found.c
new file mode 100644
index 0000000..f856275
--- /dev/null
+++ b/tools/ota/check-lost+found.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/klog.h>
+#include <sys/reboot.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <time.h>
+
+#include "private/android_filesystem_config.h"
+
+// Sentinel file used to track whether we've forced a reboot
+static const char *kMarkerFile = "/data/misc/check-lost+found-rebooted-2";
+
+// Output file in tombstones directory (first 8K will be uploaded)
+static const char *kOutputDir = "/data/tombstones";
+static const char *kOutputFile = "/data/tombstones/check-lost+found-log";
+
+// Partitions to check
+static const char *kPartitions[] = { "/system", "/data", "/cache", NULL };
+
+/*
+ * 1. If /data/misc/forced-reboot is missing, touch it & force "unclean" boot.
+ * 2. Write a log entry with the number of files in lost+found directories.
+ */
+
+int main(int argc, char **argv) {
+ mkdir(kOutputDir, 0755);
+ chown(kOutputDir, AID_SYSTEM, AID_SYSTEM);
+ FILE *out = fopen(kOutputFile, "a");
+ if (out == NULL) {
+ fprintf(stderr, "Can't write %s: %s\n", kOutputFile, strerror(errno));
+ return 1;
+ }
+
+ // Note: only the first 8K of log will be uploaded, so be terse.
+ time_t start = time(NULL);
+ fprintf(out, "*** check-lost+found ***\nStarted: %s", ctime(&start));
+
+ struct stat st;
+ if (stat(kMarkerFile, &st)) {
+ // No reboot marker -- need to force an unclean reboot.
+ // But first, try to create the marker file. If that fails,
+ // skip the reboot, so we don't get caught in an infinite loop.
+
+ int fd = open(kMarkerFile, O_WRONLY|O_CREAT, 0444);
+ if (fd >= 0 && close(fd) == 0) {
+ fprintf(out, "Wrote %s, rebooting\n", kMarkerFile);
+ fflush(out);
+ sync(); // Make sure the marker file is committed to disk
+
+ // If possible, dirty each of these partitions before rebooting,
+ // to make sure the filesystem has to do a scan on mount.
+ int i;
+ for (i = 0; kPartitions[i] != NULL; ++i) {
+ char fn[PATH_MAX];
+ snprintf(fn, sizeof(fn), "%s/%s", kPartitions[i], "dirty");
+ fd = open(fn, O_WRONLY|O_CREAT, 0444);
+ if (fd >= 0) { // Don't sweat it if we can't write the file.
+ write(fd, fn, sizeof(fn)); // write, you know, some data
+ close(fd);
+ unlink(fn);
+ }
+ }
+
+ reboot(RB_AUTOBOOT); // reboot immediately, with dirty filesystems
+ fprintf(out, "Reboot failed?!\n");
+ exit(1);
+ } else {
+ fprintf(out, "Can't write %s: %s\n", kMarkerFile, strerror(errno));
+ }
+ } else {
+ fprintf(out, "Found %s\n", kMarkerFile);
+ }
+
+ int i;
+ for (i = 0; kPartitions[i] != NULL; ++i) {
+ char fn[PATH_MAX];
+ snprintf(fn, sizeof(fn), "%s/%s", kPartitions[i], "lost+found");
+ DIR *dir = opendir(fn);
+ if (dir == NULL) {
+ fprintf(out, "Can't open %s: %s\n", fn, strerror(errno));
+ } else {
+ int count = 0;
+ struct dirent *ent;
+ while ((ent = readdir(dir))) {
+ if (strcmp(ent->d_name, ".") && strcmp(ent->d_name, ".."))
+ ++count;
+ }
+ closedir(dir);
+ if (count > 0) {
+ fprintf(out, "OMGZ FOUND %d FILES IN %s\n", count, fn);
+ } else {
+ fprintf(out, "%s is clean\n", fn);
+ }
+ }
+ }
+
+ char dmesg[131073];
+ int len = klogctl(KLOG_READ_ALL, dmesg, sizeof(dmesg) - 1);
+ if (len < 0) {
+ fprintf(out, "Can't read kernel log: %s\n", strerror(errno));
+ } else { // To conserve space, only write lines with certain keywords
+ fprintf(out, "--- Kernel log ---\n");
+ dmesg[len] = '\0';
+ char *saveptr, *line;
+ int in_yaffs = 0;
+ for (line = strtok_r(dmesg, "\n", &saveptr); line != NULL;
+ line = strtok_r(NULL, "\n", &saveptr)) {
+ if (strstr(line, "yaffs: dev is")) in_yaffs = 1;
+
+ if (in_yaffs ||
+ strstr(line, "yaffs") ||
+ strstr(line, "mtd") ||
+ strstr(line, "msm_nand")) {
+ fprintf(out, "%s\n", line);
+ }
+
+ if (strstr(line, "yaffs_read_super: isCheckpointed")) in_yaffs = 0;
+ }
+ }
+
+ return 0;
+}
diff --git a/tools/ota/convert-to-bmp.py b/tools/ota/convert-to-bmp.py
new file mode 100644
index 0000000..446c09d
--- /dev/null
+++ b/tools/ota/convert-to-bmp.py
@@ -0,0 +1,79 @@
+#!/usr/bin/python2.4
+
+"""A simple script to convert asset images to BMP files, that supports
+RGBA image."""
+
+import struct
+import Image
+import sys
+
+infile = sys.argv[1]
+outfile = sys.argv[2]
+
+if not outfile.endswith(".bmp"):
+ print >> sys.stderr, "Warning: I'm expecting to write BMP files."
+
+im = Image.open(infile)
+if im.mode == 'RGB':
+ im.save(outfile)
+elif im.mode == 'RGBA':
+ # Python Imaging Library doesn't write RGBA BMP files, so we roll
+ # our own.
+
+ BMP_HEADER_FMT = ("<" # little-endian
+ "H" # signature
+ "L" # file size
+ "HH" # reserved (set to 0)
+ "L" # offset to start of bitmap data)
+ )
+
+ BITMAPINFO_HEADER_FMT= ("<" # little-endian
+ "L" # size of this struct
+ "L" # width
+ "L" # height
+ "H" # planes (set to 1)
+ "H" # bit count
+ "L" # compression (set to 0 for minui)
+ "L" # size of image data (0 if uncompressed)
+ "L" # x pixels per meter (1)
+ "L" # y pixels per meter (1)
+ "L" # colors used (0)
+ "L" # important colors (0)
+ )
+
+ fileheadersize = struct.calcsize(BMP_HEADER_FMT)
+ infoheadersize = struct.calcsize(BITMAPINFO_HEADER_FMT)
+
+ header = struct.pack(BMP_HEADER_FMT,
+ 0x4d42, # "BM" in little-endian
+ (fileheadersize + infoheadersize +
+ im.size[0] * im.size[1] * 4),
+ 0, 0,
+ fileheadersize + infoheadersize)
+
+ info = struct.pack(BITMAPINFO_HEADER_FMT,
+ infoheadersize,
+ im.size[0],
+ im.size[1],
+ 1,
+ 32,
+ 0,
+ 0,
+ 1,
+ 1,
+ 0,
+ 0)
+
+ f = open(outfile, "wb")
+ f.write(header)
+ f.write(info)
+ data = im.tostring()
+ for j in range(im.size[1]-1, -1, -1): # rows bottom-to-top
+ for i in range(j*im.size[0]*4, (j+1)*im.size[0]*4, 4):
+ f.write(data[i+2]) # B
+ f.write(data[i+1]) # G
+ f.write(data[i+0]) # R
+ f.write(data[i+3]) # A
+ f.close()
+else:
+ print >> sys.stderr, "Don't know how to handle image mode '%s'." % (im.mode,)
diff --git a/tools/ota/make-update-script.c b/tools/ota/make-update-script.c
new file mode 100644
index 0000000..225dc52
--- /dev/null
+++ b/tools/ota/make-update-script.c
@@ -0,0 +1,228 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "private/android_filesystem_config.h"
+
+#include <dirent.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/*
+ * Recursively walk the directory tree at <sysdir>/<subdir>, writing
+ * script commands to set permissions and create symlinks.
+ * Assume the contents already have the specified default permissions,
+ * so only output commands if they need to be changed from the defaults.
+ *
+ * Note that permissions are set by fs_config(), which uses a lookup table of
+ * Android permissions. They are not drawn from the build host filesystem.
+ */
+static void walk_files(
+ const char *sysdir, const char *subdir,
+ unsigned default_uid, unsigned default_gid,
+ unsigned default_dir_mode, unsigned default_file_mode) {
+ const char *sep = strcmp(subdir, "") ? "/" : "";
+
+ char fn[PATH_MAX];
+ unsigned dir_uid = 0, dir_gid = 0, dir_mode = 0;
+ snprintf(fn, PATH_MAX, "system%s%s", sep, subdir);
+ fs_config(fn, 1, &dir_uid, &dir_gid, &dir_mode);
+
+ snprintf(fn, PATH_MAX, "%s%s%s", sysdir, sep, subdir);
+ DIR *dir = opendir(fn);
+ if (dir == NULL) {
+ perror(fn);
+ exit(1);
+ }
+
+ /*
+ * We can use "set_perm" and "set_perm_recursive" to set file permissions
+ * (owner, group, and file mode) for individual files and entire subtrees.
+ * We want to use set_perm_recursive efficiently to avoid setting the
+ * permissions of every single file in the system image individually.
+ *
+ * What we do is recursively set our entire subtree to the permissions
+ * used by the first file we encounter, and then use "set_perm" to adjust
+ * the permissions of subsequent files which don't match the first one.
+ * This is bad if the first file is an outlier, but it generally works.
+ * Subdirectories can do the same thing recursively if they're different.
+ */
+
+ int is_first = 1;
+ const struct dirent *e;
+ while ((e = readdir(dir))) {
+ // Skip over "." and ".." entries
+ if (!strcmp(e->d_name, ".") || !strcmp(e->d_name, "..")) continue;
+
+ if (e->d_type == DT_LNK) { // Symlink
+
+ // Symlinks don't really have permissions, so this is orthogonal.
+ snprintf(fn, PATH_MAX, "%s/%s%s%s", sysdir, subdir, sep, e->d_name);
+ int len = readlink(fn, fn, PATH_MAX - 1);
+ if (len <= 0) {
+ perror(fn);
+ exit(1);
+ }
+ fn[len] = '\0';
+ printf("symlink %s SYSTEM:%s%s%s\n", fn, subdir, sep, e->d_name);
+
+ } else if (e->d_type == DT_DIR) { // Subdirectory
+
+ // Use the parent directory as the model for default permissions.
+ // We haven't seen a file, so just make up some file defaults.
+ if (is_first && (
+ dir_mode != default_dir_mode ||
+ dir_uid != default_uid || dir_gid != default_gid)) {
+ default_uid = dir_uid;
+ default_gid = dir_gid;
+ default_dir_mode = dir_mode;
+ default_file_mode = dir_mode & default_file_mode & 0666;
+ printf("set_perm_recursive %d %d 0%o 0%o SYSTEM:%s\n",
+ default_uid, default_gid,
+ default_dir_mode, default_file_mode,
+ subdir);
+ }
+
+ is_first = 0;
+
+ // Recursively handle the subdirectory.
+ // Note, the recursive call handles the directory's own permissions.
+ snprintf(fn, PATH_MAX, "%s%s%s", subdir, sep, e->d_name);
+ walk_files(sysdir, fn,
+ default_uid, default_gid,
+ default_dir_mode, default_file_mode);
+
+ } else { // Ordinary file
+
+ // Get the file's desired permissions.
+ unsigned file_uid = 0, file_gid = 0, file_mode = 0;
+ snprintf(fn, PATH_MAX, "system/%s%s%s", subdir, sep, e->d_name);
+ fs_config(fn, 0, &file_uid, &file_gid, &file_mode);
+
+ // If this is the first file, its mode gets to become the default.
+ if (is_first && (
+ dir_mode != default_dir_mode ||
+ file_mode != default_file_mode ||
+ dir_uid != default_uid || file_uid != default_uid ||
+ dir_gid != default_gid || file_gid != default_gid)) {
+ default_uid = dir_uid;
+ default_gid = dir_gid;
+ default_dir_mode = dir_mode;
+ default_file_mode = file_mode;
+ printf("set_perm_recursive %d %d 0%o 0%o SYSTEM:%s\n",
+ default_uid, default_gid,
+ default_dir_mode, default_file_mode,
+ subdir);
+ }
+
+ is_first = 0;
+
+ // Otherwise, override this file if it doesn't match the defaults.
+ if (file_mode != default_file_mode ||
+ file_uid != default_uid || file_gid != default_gid) {
+ printf("set_perm %d %d 0%o SYSTEM:%s%s%s\n",
+ file_uid, file_gid, file_mode,
+ subdir, sep, e->d_name);
+ }
+
+ }
+ }
+
+ // Set the directory's permissions directly, if they never got set.
+ if (dir_mode != default_dir_mode ||
+ dir_uid != default_uid || dir_gid != default_gid) {
+ printf("set_perm %d %d 0%o SYSTEM:%s\n",
+ dir_uid, dir_gid, dir_mode, subdir);
+ }
+
+ closedir(dir);
+}
+
+/*
+ * Generate the update script (in "Amend", see commands/recovery/commands.c)
+ * for the complete-reinstall OTA update packages the build system makes.
+ *
+ * The generated script makes a variety of sanity checks about the device,
+ * erases and reinstalls system files, and sets file permissions appropriately.
+ */
+int main(int argc, char *argv[]) {
+ if (argc != 3) {
+ fprintf(stderr, "usage: %s systemdir android-info.txt >update-script\n",
+ argv[0]);
+ return 2;
+ }
+
+ // ensure basic recovery script language compatibility
+ printf("assert compatible_with(\"0.2\") == \"true\"\n");
+
+ // if known, make sure the device name is correct
+ const char *device = getenv("TARGET_DEVICE");
+ if (device != NULL) {
+ printf("assert getprop(\"ro.product.device\") == \"%s\" || "
+ "getprop(\"ro.build.product\") == \"%s\"\n", device, device);
+ }
+
+ // scan android-info.txt to enforce compatibility with the target system
+ FILE *fp = fopen(argv[2], "r");
+ if (fp == NULL) {
+ perror(argv[2]);
+ return 1;
+ }
+
+ // The lines we're looking for look like:
+ // version-bootloader=x.yy.zzzz
+ // or:
+ // require version-bootloader=x.yy.zzzz
+ char line[256];
+ while (fgets(line, sizeof(line), fp)) {
+ const char *name = strtok(line, "="), *value = strtok(NULL, "\n");
+ if (value != NULL &&
+ (!strcmp(name, "version-bootloader") ||
+ !strcmp(name, "require version-bootloader"))) {
+ printf("assert getprop(\"ro.bootloader\") == \"%s\"\n", value);
+ }
+ // We also used to check version-baseband, but we update radio.img
+ // ourselves, so there's no need.
+ }
+
+ // erase the boot sector first, so if the update gets interrupted,
+ // the system will reboot into the recovery partition and start over.
+ printf("format BOOT:\n");
+
+ // write the radio image (actually just loads it into RAM for now)
+ printf("show_progress 0.1 0\n");
+ printf("write_radio_image PACKAGE:radio.img\n");
+
+ // erase and reinstall the system image
+ printf("show_progress 0.5 0\n");
+ printf("format SYSTEM:\n");
+ printf("copy_dir PACKAGE:system SYSTEM:\n");
+
+ // walk the files in the system image, set their permissions, etc.
+ // use -1 for default values to force permissions to be set explicitly.
+ walk_files(argv[1], "", -1, -1, -1, -1);
+
+ // as the last step, write the boot sector.
+ printf("show_progress 0.2 0\n");
+ printf("write_raw_image PACKAGE:boot.img BOOT:\n");
+
+ // after the end of the script, the radio will be written to cache
+ // leave some space in the progress bar for this operation
+ printf("show_progress 0.2 10\n");
+ return 0;
+}