Fix wav append mode (bug #3498)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4958 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/file.c b/file.c
index 4213f5e..f0761b1 100755 (executable)
--- a/file.c
+++ b/file.c
@@ -855,8 +855,12 @@ struct ast_filestream *ast_writefile(const char *filename, const char *type, con
                return NULL;
        }
        /* set the O_TRUNC flag if and only if there is no O_APPEND specified */
-       if (!(flags & O_APPEND)) 
+       if (flags & O_APPEND) { 
+               /* We really can't use O_APPEND as it will break WAV header updates */
+               flags &= ~O_APPEND;
+       } else {
                myflags = O_TRUNC;
+       }
        
        myflags |= O_WRONLY | O_CREAT;