Use curl_off_t and CURL_FORMAT_CURL_OFF_T for file size.

docs/examples/ftpupload.c

@@ -55,6 +55,7 @@ int main(int argc, char **argv)
   CURLcode res;
   FILE *hd_src;
   struct stat file_info;
+  curl_off_t fsize;
 
   struct curl_slist *headerlist=NULL;
   static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
@@ -65,7 +66,9 @@ int main(int argc, char **argv)
     printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
     return 1;
   }
-  printf("Local file size: %ld bytes.\n", (long)file_info.st_size);
+  fsize = (curl_off_t)file_info.st_size;
+
+  printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
 
   /* get a FILE * of the same file */
   hd_src = fopen(LOCAL_FILE, "rb");
@@ -100,7 +103,7 @@ int main(int argc, char **argv)
        curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
        make sure that to pass in a type 'long' argument. */
     curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
-                     (curl_off_t)file_info.st_size);
+                     (curl_off_t)fsize);
 
     /* Now run off and do what you've been told! */
     res = curl_easy_perform(curl);