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authorRussell Bryant <russell@russellbryant.com>2013-01-28 01:58:41 +0000
committerRussell Bryant <russell@russellbryant.com>2013-01-28 01:58:41 +0000
commit5d41d316213486d8f62d998e249b96c3f2645d91 (patch)
tree41baf81d0f25fc2b295ae19059c87e7f10febd3e /main/file.c
parentdfdf3d9909f89989bf332ed4156e2034a6246a5c (diff)
Change cleanup ordering in filestream destructor.
This patch came about due to a problem observed where wav files had an empty header. The header is supposed to be updated in wav_close(). It turns out that this was broken when the cache_record_files option from asterisk.conf was enabled. The cleanup code was moving the file to its final destination *before* running the close() method of the file destructor, so the header didn't get updated. Another problem here is that the move was being done before actually closing the FILE *. Finally, the last bug fixed here is that I noticed that wav_close() checks for stream->filename to be non-NULL. In the previous cleanup order, it's checking a pointer to freed memory. This doesn't actually cause anything to break, but it's treading on dangerous waters. Now the free() of stream->filename is happening after the format module's close() method gets called, so it's safer. Review: https://reviewboard.asterisk.org/r/2286/ ........ Merged revisions 380210 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 380211 from http://svn.asterisk.org/svn/asterisk/branches/11 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@380212 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'main/file.c')
-rw-r--r--main/file.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/main/file.c b/main/file.c
index 79b4e8486..30780b63c 100644
--- a/main/file.c
+++ b/main/file.c
@@ -329,6 +329,15 @@ static void filestream_destructor(void *arg)
if (f->trans)
ast_translator_free_path(f->trans);
+ if (f->fmt->close) {
+ void (*closefn)(struct ast_filestream *) = f->fmt->close;
+ closefn(f);
+ }
+
+ if (f->f) {
+ fclose(f->f);
+ }
+
if (f->realfilename && f->filename) {
pid = ast_safe_fork(0);
if (!pid) {
@@ -345,12 +354,6 @@ static void filestream_destructor(void *arg)
free(f->filename);
if (f->realfilename)
free(f->realfilename);
- if (f->fmt->close) {
- void (*closefn)(struct ast_filestream *) = f->fmt->close;
- closefn(f);
- }
- if (f->f)
- fclose(f->f);
if (f->vfs)
ast_closestream(f->vfs);
if (f->write_buffer) {