From 69a69ade1f952bf5e66ced0de362faa128c0f5a4 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Sat, 25 Nov 2000 16:38:04 +0000
Subject: [PATCH] Added the error handler ignoring misleading warnings...

---
 seq/aconnect/aconnect.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/seq/aconnect/aconnect.c b/seq/aconnect/aconnect.c
index 0d3e328..a02f43f 100644
--- a/seq/aconnect/aconnect.c
+++ b/seq/aconnect/aconnect.c
@@ -22,9 +22,25 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
+#include <stdarg.h>
 #include <sys/ioctl.h>
 #include <sys/asoundlib.h>
 
+static void error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...)
+{
+	va_list arg;
+
+	if (err == ENOENT)	/* Ignore those misleading "warnings" */
+		return;
+	va_start(arg, fmt);
+	fprintf(stderr, "ALSA lib %s:%i:(%s) ", file, line, function);
+	vfprintf(stderr, fmt, arg);
+	if (err)
+		fprintf(stderr, ": %s", snd_strerror(err));
+	putc('\n', stderr);
+	va_end(arg);
+}
+
 static void usage(void)
 {
 	fprintf(stderr, "aconnect - ALSA sequencer connection manager\n");
@@ -335,6 +351,8 @@ int main(int argc, char **argv)
 		return 1;
 	}
 	
+	snd_lib_error_set_handler(error_handler);
+
 	switch (command) {
 	case LIST_INPUT:
 		list_ports(seq, group, SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ, list_subs);