[syslinux] Syslinux-5.01 cmd.c32 broken: __com32 undefined
H. Peter Anvin
hpa at zytor.com
Wed Feb 6 09:43:46 PST 2013
On 02/05/2013 08:47 PM, Gene Cumm wrote:
> Rather than acting like a typical C program using argc/argv, cmd.c32
> uses __com32.cs_cmdline to retrieve what's passed to it. meminfo.c32
> uses __intcall() which in the library calls __com32.cs_intcall(). Is
> __com32 only exposed for library functions or is there something else
> missing in here? Should accessing __com32.cs_cmdline be abstracted
> via a function call for protection? Should cmd.c32 use argc/argv
> instead?
Well, __com32 is gone; it was an implementation detail for the older
versions.
> If we were to abstract/protect via a function call, I'd expect the
> call to use strncpy/memcpy and be like:
>
> char *get_cmdline(char *dest, size_t n)
>
> or if only for abstraction
>
> char *get_cmdline(void)
Being able to get the raw command line rather than the parsed
(argc/argv) command line might be a good thing. If so, we probably
would just export it as something like:
const char *cmdline(void);
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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