--- a/decoders/au.c	Sun Jan 13 19:51:14 2002 +0000
+++ b/decoders/au.c	Sun Jan 13 21:34:46 2002 +0000
@@ -75,12 +75,12 @@
 static int AU_init(void)
 {
     return(1);
-}
+} /* AU_init */
 
 static void AU_quit(void)
 {
     /* no-op. */
-}
+} /* AU_quit */
 
 struct au_file_hdr
 {
@@ -138,8 +138,8 @@
     {
         Sound_SetError("No .au file (bad header)");
         free(dec);
-        return 0;
-    }
+        return(0);
+    } /* if */
 
     if (SDL_SwapLE32(hdr.magic) == AU_MAGIC)
     {
@@ -166,7 +166,7 @@
                 Sound_SetError("Unsupported .au encoding");
                 free(dec);
                 return 0;
-        }
+        } /* switch */
 
         sample->actual.rate = SDL_SwapBE32(hdr.sample_rate);
         sample->actual.channels = SDL_SwapBE32(hdr.channels);
@@ -176,7 +176,7 @@
         /* skip remaining part of header (input may be unseekable) */
         for (i = HDR_SIZE; i < hsize; i++)
             SDL_RWread(rw, &c, 1, 1);
-    }
+    } /* if */
 
     else if (__Sound_strcasecmp(ext, "au") == 0)
     {
@@ -194,20 +194,28 @@
         sample->actual.format = AUDIO_S16SYS;
         sample->actual.rate = 8000;
         sample->actual.channels = 1;
-    }
+    } /* else if */
+
+    else
+    {
+        SNDDBG(("AU: Not an .AU stream.\n"));
+        free(dec);
+        return(0);
+    } /* else */
 
     sample->flags = SOUND_SAMPLEFLAG_NONE;
 
     SNDDBG(("AU: Accepting data stream.\n"));
-    return 1;
-}
+    return(1);
+} /* AU_open */
 
 
 static void AU_close(Sound_Sample *sample)
 {
     Sound_SampleInternal *internal = sample->opaque;
     free(internal->decoder_private);
-}
+} /* AU_close */
+
 
 /* table to convert from µ-law encoding to signed 16-bit samples,
    generated by a throwaway perl script */
@@ -246,6 +254,7 @@
         56,    48,    40,    32,    24,    16,     8,     0
 };
 
+
 static Uint32 AU_read(Sound_Sample *sample)
 {
     int ret;
@@ -262,7 +271,7 @@
            we can expand them to 16-bit samples afterwards */
         maxlen >>= 1;
         buf += maxlen;
-    }
+    } /* if */
 
     if(maxlen > dec->remaining)
         maxlen = dec->remaining;
@@ -284,11 +293,11 @@
             for (i = 0; i < ret; i++)
                 dst[i] = ulaw_to_linear[buf[i]];
             ret <<= 1;                  /* return twice as much as read */
-        }
-    }
+        } /* if */
+    } /* else */
 
-    return ret;
-}
+    return(ret);
+} /* AU_read */
 
 #endif /* SOUND_SUPPORTS_AU */