consider no XDG_DATA_HOME env

1 files changed, 8 insertions, 2 deletions

diff --git a/mycan.c b/mycan.c
index 8c6910b..cad7a37 100644
--- a/mycan.c
+++ b/mycan.c
@@ -49,9 +49,15 @@ int main(int argc, char **argv)
 	struct can_frame frame;
 	// usually ~/.local/share
 	const char *dir=getenv("XDG_DATA_HOME");
+	const char *home;
+	if(dir == NULL)
+		home=getenv("HOME");
 	// /mycan.csv 10 + \0 1 = 11
-	char filename[strlen(dir)+11];
-	sprintf(filename,"%s/mycan.csv",dir);
+	char filename[((dir == NULL)?strlen(home):strlen(dir))+11];
+	if(dir == NULL)
+		sprintf(filename,"%s/.local/share/mycan.csv",home);
+	else
+		sprintf(filename,"%s/mycan.csv",dir);
 
 	can_obj_all_sre_edited_h_t obj;
 	dbcc_time_stamp_t t, t_before;