$NetBSD: patch-src_sox__ng.c,v 1.1 2025/07/03 15:46:59 wiz Exp $

PR pkg/56800 hitting v or V during sox's play command causes a
segfault

https://sourceforge.net/p/sox/code/ci/4b17639fb7591153dbd3e234eea21b1a2a29fcfa/
from more than 10 years ago changed the sun audio driver for the 14.4 release
to not use stdio (among others) while adjust_volume() in sox.c still used
fileno under the assumption that stdio was being used in the audio driver.

output_muted is not defined on NetBSD.

--- src/sox_ng.c.orig	2025-06-10 06:22:30.000000000 +0000
+++ src/sox_ng.c
@@ -1325,7 +1325,8 @@ static void adjust_volume(int delta)
 #elif defined(HAVE_AUDIOIO_H)
 static void adjust_volume(int delta)
 {
-  int vol1 = 0, vol2 = 0, fd = fileno((FILE*)ofile->ft->fp);
+  int vol1 = 0, vol2 = 0, fd;
+  fd = ofile->ft->fp != NULL ? *((int *)ofile->ft->fp) : -1;
   fprintf(stderr, "Audioio volume\n");
   if (lsx_adjust_softvol(delta) == SOX_SUCCESS) return;
   if (fd >= 0) {
@@ -1335,7 +1336,9 @@ static void adjust_volume(int delta)
       vol2 = range_limit(vol1 + delta, 0, 100);
       AUDIO_INITINFO(&audio_info);
       audio_info.play.gain = (vol2 * AUDIO_MAX_GAIN + 50) / 100;
+#if defined(__sun)
       audio_info.output_muted = 0;
+#endif
       lsx_debug("%04x %04x", vol1, vol2);
       if (vol1 != vol2 && ioctl(fd, AUDIO_SETINFO, &audio_info) < 0)
         vol2 = vol1;