Re: [Lynx-dev] SOCK5 crash+fix

[Gisle Vanem]

> > HTSprintf0 expects to have the address of a pointer in which it
> > can return a pointer to newly-allocated memory.
>
> 'HTSprintf0(NULL,..)' looks okay to me, but crashes
> on some condition anyway. Some Runtime-Checks that gets
> confused (?).

I think I found the cause of it:

--- orig/WWW/Library/Implementation/HTString.c 2021-06-09 22:16:06
+++ WWW/Library/Implementation/HTString.c      2022-03-11 13:48:17
    char *dst_ptr = *pstr;
    const char *format = fmt;
-   char *dst_ptr = *pstr;      // line 680
+   char *dst_ptr = pstr ? *pstr : NULL;