FreeSWITCH Version 1.4.20+git~20150703T164215Z~b95362f965~32bit (git b95362f
2015-07-03 16:42:15Z 32bit)
I think I found bug in spandsp.
`t4_image_put_handler_t` defined as (__cdecl)
typedef int (*t4_image_put_handler_t)(void *user_data, const uint8_t buf[],
size_t len);
But `tXX_decode_put` functions defined as `__stdcall`.
So when I do
s->image_put_handler = (t4_image_put_handler_t) t4_t6_decode_put;
...
s->image_put_handler(...)
I got AV.
After I declare t4_image_put_handler_t as __stdcall problem solved.
(Alse need update declaretion to `pre_encoded_put` function)
But I start getting heap corruption on
`span_free((char *) s->tiff.file);`
Problem is that it uses `strdup` function with different allocator.
So I just copy function to `alloc.c`
SPAN_DECLARE(char *) span_strdup(const char *str)
{
char *sdup;
size_t len = strlen(str) + 1;
sdup = (char *) span_alloc(len);
memcpy(sdup, str, len);
return sdup;
}
And use it as
ds->tiff.file = span_strdup(file);
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