From: Tilghman Lesher <tilghman@meg.abyt.es>
Date: Sun, 19 Feb 2006 17:11:02 +0000 (+0000)
Subject: Bug 6539 - Division by two negates error flag
X-Git-Tag: 1.2.7.1~134
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a0cf51877b80b3f7041df5533efb64a535549af;p=thirdparty%2Fasterisk.git

Bug 6539 - Division by two negates error flag


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@10462 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/formats/format_sln.c b/formats/format_sln.c
index 008a715bc3..c1a16618db 100644
--- a/formats/format_sln.c
+++ b/formats/format_sln.c
@@ -172,6 +172,7 @@ static int slinear_write(struct ast_filestream *fs, struct ast_frame *f)
 static int slinear_seek(struct ast_filestream *fs, long sample_offset, int whence)
 {
 	off_t offset=0,min,cur,max;
+	int res;
 
 	min = 0;
 	sample_offset <<= 1;
@@ -189,7 +190,12 @@ static int slinear_seek(struct ast_filestream *fs, long sample_offset, int whenc
 	}
 	/* always protect against seeking past begining. */
 	offset = (offset < min)?min:offset;
-	return fseek(fs->f, offset, SEEK_SET) / 2;
+	res = fseek(fs->f, offset, SEEK_SET);
+	/* Negative values indicate error */
+	if (res > -1)
+		return res / 2;
+	else
+		return res;
 }
 
 static int slinear_trunc(struct ast_filestream *fs)