apr_psprintf() strange

[Kuroishi Mitsuo / 黒石 光雄]

# Sorry, I don't subscribe this ML & my poor english.

I used apr_psprintf() in self developed handler,  like this.

    1439            char *hintfile = (char *) apr_psprintf(r->pool,
"%s/%s/%s.hint",
    1440                                                   ntv_hint_file_dir,
    1441                                                   fileid,
    1442                                                   filename);

Each input strings are

    (gdb) display ntv_hint_file_dir
    1: ntv_hint_file_dir = 0x820a4d0 "/var/service/tvps/hint"
    (gdb) display fileid
    2: fileid = 0x827dd58 "h264-fune"
    (gdb) display filename
    3: filename = 0x827ff9f "h264-fune+0020.tts"

step execute apr_psprintf(), then each input strings are

    (gdb) n
    3: filename = 0x827ff9f
"rvice/tvps/hint/h264-fune/rvice/tvps/hint/h264-fune/rvic.hint"
    2: fileid = 0x827dd58 "h264-fune"
    1: ntv_hint_file_dir = 0x820a4d0 "/var/service/tvps/hint"

Why does "filename" is changed?

Any hints or advises, I will be happy.

I use rpm packages as below.
  - httpd-devel-2.2.3-11.el5_1.centos.3
  - apr-1.2.7-11

-- 
Kuroishi Mitsuo