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fixed the update false alarm bug with garbage data (linux)

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Isaac0-dev 2025-06-09 21:07:09 +10:00
parent 235533b1a5
commit 01eb5c34c0
1 changed files with 15 additions and 11 deletions
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26
src/pc/update_checker.c
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@ -25,15 +25,19 @@ void show_update_popup(void) {
}
#if !(defined(_WIN32) || defined(_WIN64))
size_t write_callback(char *ptr, size_t size, size_t nmemb, char **data) {
typedef struct { char *str; size_t size; } Buffer;
size_t write_callback(char *ptr, size_t size, size_t nmemb, void *userdata) {
size_t realsize = size * nmemb;
Buffer *buf = (Buffer *) userdata;
// allocate memory for the received data and copy it into the buffer
*data = realloc(*data, realsize + 1);
if (*data == NULL) { return 0; }
char *data = realloc(buf->str, buf->size + realsize + 1);
if (data == NULL) { return 0; }
memcpy(*data, ptr, realsize);
(*data)[realsize] = '\0'; // null-terminate the string
memcpy(&data[buf->size], ptr, realsize);
buf->size += realsize;
buf->str = data;
buf->str[buf->size] = '\0'; // null-terminate the string
return realsize;
}
@ -92,7 +96,7 @@ void get_version_remote(void) {
InternetCloseHandle(hUrl);
InternetCloseHandle(hInternet);
#else
char* buffer = NULL;
Buffer data = { .str = NULL, .size = 0 };
// initialize libcurl
CURL *curl = curl_easy_init();
@ -103,7 +107,7 @@ void get_version_remote(void) {
// set properties
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &data);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 3); // only allow 3 seconds
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 3);
curl_easy_setopt(curl, CURLOPT_URL, URL);
@ -115,15 +119,15 @@ void get_version_remote(void) {
curl_easy_cleanup(curl);
return;
}
if (!buffer) { return; }
snprintf(sRemoteVersion, 8, "%s", buffer);
char* buffer = data.str;
// Clean up
curl_easy_cleanup(curl);
#endif
parse_version(buffer);
#if !(defined(_WIN32) || defined(_WIN64))
free(buffer);
#endif
}
void check_for_updates(void) {