examine the result of write() ops, avoid warnings

1 files changed, 7 insertions, 5 deletions

diff --git a/sbc/sbcdec.c b/sbc/sbcdec.c
index 0617fe04..3435e8f8 100644
--- a/sbc/sbcdec.c
+++ b/sbc/sbcdec.c
@@ -46,7 +46,7 @@ static void decode(char *filename, char *audiodevice, int tofile)
 	struct stat st;
 	off_t filesize;
 	sbc_t sbc;
-	int fd, ad, pos, streamlen, framelen, count, format = AFMT_S16_BE;
+	int fd, ad, pos, streamlen, framelen, count, format = AFMT_S16_BE, written;
 
 	if (stat(filename, &st) < 0) {
 		fprintf(stderr, "Can't get size of file %s: %s\n",
@@ -121,8 +121,8 @@ static void decode(char *filename, char *audiodevice, int tofile)
 		if (count + sbc.len > BUF_SIZE) {
 			// buffer is too full to stuff decoded audio in
 			// so it must be written to the device
-			write(ad, buf, count);
-			count = 0;
+			written = write(ad, buf, count);
+			if(written > 0) count -= written;
 		}
 
 		// sanity check
@@ -141,8 +141,10 @@ static void decode(char *filename, char *audiodevice, int tofile)
 		framelen = sbc_decode(&sbc, stream + pos, streamlen - pos);
 	}
 
-	if (count > 0)
-		write(ad, buf, count);
+	if (count > 0) {
+		written = write(ad, buf, count);
+		if(written > 0) count -= written;
+	}
 
 close:
 	sbc_finish(&sbc);