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/*
* common.c
* Misc functions used in idevicerestore
*
* Copyright (c) 2010 Joshua Hill. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <libgen.h>
#include "common.h"
int idevicerestore_debug = 0;
static FILE* info_stream = NULL;
static FILE* error_stream = NULL;
static FILE* debug_stream = NULL;
static int info_disabled = 0;
static int error_disabled = 0;
static int debug_disabled = 0;
void info(const char* format, ...)
{
if (info_disabled) return;
va_list vargs;
va_start(vargs, format);
vfprintf((info_stream) ? info_stream : stdout, format, vargs);
va_end(vargs);
}
void error(const char* format, ...)
{
if (error_disabled) return;
va_list vargs;
va_start(vargs, format);
vfprintf((error_stream) ? error_stream : stderr, format, vargs);
va_end(vargs);
}
void debug(const char* format, ...)
{
if (debug_disabled) return;
if (!idevicerestore_debug) {
return;
}
va_list vargs;
va_start(vargs, format);
vfprintf((debug_stream) ? debug_stream : stderr, format, vargs);
va_end(vargs);
}
void idevicerestore_set_info_stream(FILE* strm)
{
if (strm) {
info_disabled = 0;
info_stream = strm;
} else {
info_disabled = 1;
}
}
void idevicerestore_set_error_stream(FILE* strm)
{
if (strm) {
error_disabled = 0;
error_stream = strm;
} else {
error_disabled = 1;
}
}
void idevicerestore_set_debug_stream(FILE* strm)
{
if (strm) {
debug_disabled = 0;
debug_stream = strm;
} else {
debug_disabled = 1;
}
}
int write_file(const char* filename, const void* data, size_t size) {
size_t bytes = 0;
FILE* file = NULL;
debug("Writing data to %s\n", filename);
file = fopen(filename, "wb");
if (file == NULL) {
error("read_file: Unable to open file %s\n", filename);
return -1;
}
bytes = fwrite(data, 1, size, file);
fclose(file);
if (bytes != size) {
error("ERROR: Unable to write entire file: %s: %d of %d\n", filename, (int)bytes, (int)size);
return -1;
}
return size;
}
int read_file(const char* filename, void** data, size_t* size) {
size_t bytes = 0;
size_t length = 0;
FILE* file = NULL;
char* buffer = NULL;
debug("Reading data from %s\n", filename);
*size = 0;
*data = NULL;
file = fopen(filename, "rb");
if (file == NULL) {
error("read_file: File %s not found\n", filename);
return -1;
}
fseek(file, 0, SEEK_END);
length = ftell(file);
rewind(file);
buffer = (char*) malloc(length);
if (buffer == NULL) {
error("ERROR: Out of memory\n");
fclose(file);
return -1;
}
bytes = fread(buffer, 1, length, file);
fclose(file);
if (bytes != length) {
error("ERROR: Unable to read entire file\n");
free(buffer);
return -1;
}
*size = length;
*data = buffer;
return 0;
}
void debug_plist(plist_t plist) {
int size = 0;
char* data = NULL;
plist_to_xml(plist, &data, &size);
info("%s", data);
free(data);
}
void print_progress_bar(double progress) {
#ifndef WIN32
if (info_disabled) return;
int i = 0;
if(progress < 0) return;
if(progress > 100) progress = 100;
info("\r[");
for(i = 0; i < 50; i++) {
if(i < progress / 2) info("=");
else info(" ");
}
info("] %5.1f%%", progress);
if(progress == 100) info("\n");
fflush((info_stream) ? info_stream : stdout);
#endif
}
#define GET_RAND(min, max) ((rand() % (max - min)) + min)
char *generate_guid()
{
char *guid = (char *) malloc(sizeof(char) * 37);
const char *chars = "ABCDEF0123456789";
srand(time(NULL));
int i = 0;
for (i = 0; i < 36; i++) {
if (i == 8 || i == 13 || i == 18 || i == 23) {
guid[i] = '-';
continue;
} else {
guid[i] = chars[GET_RAND(0, 16)];
}
}
guid[36] = '\0';
return guid;
}
int mkdir_with_parents(const char *dir, int mode)
{
if (!dir) return -1;
if (__mkdir(dir, mode) == 0) {
return 0;
} else {
if (errno == EEXIST) return 0;
}
int res;
char *parent = strdup(dir);
parent = dirname(parent);
if (parent && (strcmp(parent, ".") != 0)) {
res = mkdir_with_parents(parent, mode);
} else {
res = -1;
}
free(parent);
if (res == 0) {
mkdir_with_parents(dir, mode);
}
return res;
}
void idevicerestore_progress(struct idevicerestore_client_t* client, int step, double progress)
{
if(client && client->progress_cb) {
client->progress_cb(step, progress, client->progress_cb_data);
} else {
// we don't want to be too verbose in regular idevicerestore.
if ((step == RESTORE_STEP_UPLOAD_FS) || (step == RESTORE_STEP_FLASH_FS) || (step == RESTORE_STEP_FLASH_NOR)) {
print_progress_bar(100.0f * progress);
}
}
}
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