quick fixes

Author: neigebaie

emojicrypt.c

@@ -510,12 +510,16 @@ supported by Windows' cmd.\n\n");
       case 'h': /* help */
         helpme(argv[0]);
         return EXIT_SUCCESS;
-        break;
       default:
         fprintf(stderr, "Usage: %s [-e] [-d] -i input -o output -k key\n", argv[0]);
         return 1;
     }
   }
+  
+  if (argc == 1) {
+    helpme(argv[0]);
+    return EXIT_SUCCESS;
+  }
 
   if (o_enc && o_dec) {
     fprintf(stderr, "🚧 Encryption (-e) and decryption (-d) flags are incompatible.\n");
@@ -527,6 +531,11 @@ supported by Windows' cmd.\n\n");
     return EXIT_FAILURE;
   }
 
+  if (!o_out) {
+    fprintf(stderr, "🚧 An output file (-o) is required.\n");
+    return EXIT_FAILURE;
+  }
+
   if (!o_enc && !o_dec) {
     fprintf(stderr, "🚧 Encryption (-e) or decryption (-d) flag is required.\n");
     return EXIT_FAILURE;