#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
#include <curl/curl.h>
#include <time.h>
#include <string.h>
#define SOCK_TIMEOUT 5
#define OTA_STATE_NOTREADY 0
#define OTA_STATE_READY 1
#define OTA_STATE_CONNECTING 2
#define OTA_STATE_GETHEAD 3
#define OTA_STATE_DOWNLOADING 4
#define OTA_STATE_DOWNLOADFINISH 5
#define OTA_STATE_ERROR 6
#define MAIN_LOG(format, ...) printf("[%u][%s:%d]:"format"\r\n",(unsigned int)time(NULL),__FILE__,__LINE__, ##__VA_ARGS__)
static int ota_state = OTA_STATE_NOTREADY;
static float download_ratio = 0.0;
static int force_stop_ota = 0;
static CURLcode last_code = CURLE_OK;
static char *target_url = NULL;
static void (*get_event_cb)(int, void*) = NULL;
void set_event_cb(void(*func)(int, void*))
{
get_event_cb = func;
}
void set_target_url(char *target)
{
if(target_url){
free(target_url);
}
target_url = strdup(target);
}
int ota_get_last_error()
{
return last_code;
}
void stop_ota()
{
force_stop_ota = 1;
}
static void ota_set_state(int state)
{
ota_state = state;
MAIN_LOG("%d", state);
if(get_event_cb){
if(state != OTA_STATE_DOWNLOADING){
get_event_cb(state, NULL);
}else{
get_event_cb(state, &download_ratio);
}
}
}
int ota_get_state()
{
return ota_state;
}
float ota_get_download_ratio()
{
return download_ratio;
}
size_t header_cb(void *ptr, size_t size, size_t nmemb, void *stream)
{
if(OTA_STATE_ERROR != ota_get_state() && OTA_STATE_GETHEAD != ota_get_state()){
ota_set_state(OTA_STATE_GETHEAD);
}
//printf("%s",ptr);
return force_stop_ota ? (size * nmemb + 1) : (size * nmemb);
}
size_t wirte_cb(void *ptr, size_t size, size_t nmemb, void *stream)
{
if(OTA_STATE_ERROR != ota_get_state() && OTA_STATE_DOWNLOADING != ota_get_state()){
ota_set_state(OTA_STATE_DOWNLOADING);
}
//printf("%s",ptr);
return force_stop_ota ? (size * nmemb + 1) : (size * nmemb);
}
int progress_cb(void *ptr, double t, double d, double ultotal, double ulnow)
{
printf("%d / %d (%f %%)\n", (int)d, (int)t, d*100.0/t);
float tmp = d*100.0/t;
if(ota_state == OTA_STATE_DOWNLOADING && get_event_cb && download_ratio < tmp){
download_ratio = tmp;
get_event_cb(ota_state, &download_ratio);
}
return 0;
}
void print_event(int event, void *args)
{
MAIN_LOG("event is %d", event);
if(args)MAIN_LOG("ratio is %f",*(float*)args);
}
int main(int argc, char **argv)
{
CURL *curl_handle = NULL;
CURLcode r = CURLE_GOT_NOTHING;
struct curl_slist* headers = NULL;
curl_global_init(CURL_GLOBAL_ALL);
curl_handle = curl_easy_init();
set_event_cb(print_event);
headers = curl_slist_append(headers, "Content-Type:application/json;charset=UTF-8");
headers = curl_slist_append(headers, "username:jun");
headers = curl_slist_append(headers, "password:123456");
curl_easy_setopt(curl_handle, CURLOPT_HTTPHEADER, headers);
set_target_url("http://192.168.233.1/ota.bin");
if(!target_url){
goto exit;
}
curl_easy_setopt(curl_handle, CURLOPT_URL, target_url);
curl_easy_setopt(curl_handle, CURLOPT_TIMEOUT, SOCK_TIMEOUT);
curl_easy_setopt(curl_handle, CURLOPT_CONNECTTIMEOUT, SOCK_TIMEOUT);
curl_easy_setopt(curl_handle, CURLOPT_HEADERFUNCTION, header_cb);
curl_easy_setopt(curl_handle, CURLOPT_HEADERDATA, NULL);
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, wirte_cb);
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, NULL);
curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(curl_handle, CURLOPT_PROGRESSFUNCTION, progress_cb);
curl_easy_setopt(curl_handle, CURLOPT_PROGRESSDATA, NULL);
curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
ota_set_state(OTA_STATE_CONNECTING);
r = curl_easy_perform(curl_handle);
last_code = r;
if (r == CURLE_OK){
ota_set_state(OTA_STATE_DOWNLOADFINISH);
} else {
ota_set_state(OTA_STATE_ERROR);
fprintf(stderr, "%s\n", curl_easy_strerror(r));
}
exit:
if(!target_url){
free(target_url);
target_url = NULL;
}
force_stop_ota = 0;
curl_slist_free_all(headers);
curl_easy_cleanup(curl_handle);
curl_global_cleanup();
}