fixed segfault with -l only

tihmstar · Mar 20, 2017 · 7d26769 · 7d26769
1 parent bad1135
commit 7d26769
Showing 1 changed file with 9 additions and 8 deletions.
diff --git a/tsschecker/main.c b/tsschecker/main.c
@@ -259,14 +259,15 @@ int main(int argc, const char * argv[]) {
         }
     }
 
-    for (char *c = devVals.deviceModel; *c; c++)
-        *c = tolower(*c); //make devicemodel lowercase
-    //make devicemodel look nice. This is completely optional
-    if (*devVals.deviceModel == 'i')
-        devVals.deviceModel[1] = toupper(devVals.deviceModel[1]);
-    else
-        devVals.deviceModel[0] = toupper(devVals.deviceModel[0]);
-
+    if (devVals.deviceModel){
+        for (char *c = devVals.deviceModel; *c; c++)
+            *c = tolower(*c); //make devicemodel lowercase
+        //make devicemodel look nice. This is completely optional
+        if (*devVals.deviceModel == 'i')
+            devVals.deviceModel[1] = toupper(devVals.deviceModel[1]);
+        else
+            devVals.deviceModel[0] = toupper(devVals.deviceModel[0]);
+    }
 
     if (ecid) {
         if ((devVals.ecid = parseECID(ecid)) == 0){