Fix klange#241

liyansong2018 · Jun 7, 2022 · 744799c · 744799c
1 parent 27adbe8
commit 744799c
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/apps/weather-configurator.c b/apps/weather-configurator.c
@@ -49,6 +49,12 @@ int main(int argc, char * argv[]) {
  }
 
  FILE * f = fopen("/etc/weather.json", "w");
+ if (f == NULL) {
+ fprintf(stderr, "Configuration is not set. Please check /etc/weather.json or your permissions.\n");
+ fprintf(stderr, "(Press ENTER to exit.)\n");
+ getchar();
+ return 0;
+ }
  fprintf(f, "{\n");
  fprintf(f, " \"city\": \"%s\",\n", city);
  fprintf(f, " \"units\": \"%s\",\n", units);