Merged revisions 304097 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

................
  r304097 | seanbright | 2011-01-25 20:26:26 -0500 (Tue, 25 Jan 2011) | 19 lines

  Merged revisions 304096 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2

  ........
    r304096 | seanbright | 2011-01-25 20:24:58 -0500 (Tue, 25 Jan 2011) | 12 lines

    Per the man page, setvbuf() must be called before any other operation on an open file.

    We use setvbuf() to associate a buffer with a stream, but we have already written
    to the open file.  This works (by chance) on Linux, but fails on other platforms,
    such as OpenSolaris.

    (closes issue #16610)
    Reported by: bklang
    Patches:
          setvbuf.patch uploaded by crjw (license 963)
    Tested by: bklang, asgaroth, efutch
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@304098 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/file.c b/main/file.c
index d29dc2e..c2ab096 100644 (file)
--- a/main/file.c
+++ b/main/file.c
@@ -1113,6 +1113,11 @@ struct ast_filestream *ast_writefile(const char *filename, const char *type, con
                if (fd > -1) {
                        errno = 0;
                        fs = get_filestream(f, bfile);
+                       if (fs) {
+                               if ((fs->write_buffer = ast_malloc(32768))) {
+                                       setvbuf(fs->f, fs->write_buffer, _IOFBF, 32768);
+                               }
+                       }
                        if (!fs || rewrite_wrapper(fs, comment)) {
                                ast_log(LOG_WARNING, "Unable to rewrite %s\n", fn);
                                close(fd);
@@ -1139,11 +1144,6 @@ struct ast_filestream *ast_writefile(const char *filename, const char *type, con
                        }
                        fs->vfs = NULL;
                        /* If truncated, we'll be at the beginning; if not truncated, then append */
-
-                       if ((fs->write_buffer = ast_malloc(32768))){
-                               setvbuf(fs->f, fs->write_buffer, _IOFBF, 32768);
-                       }
-
                        f->seek(fs, 0, SEEK_END);
                } else if (errno != EEXIST) {
                        ast_log(LOG_WARNING, "Unable to open file %s: %s\n", fn, strerror(errno));