On Mon, Oct 20, 2014 at 8:28 PM, Jiri Olsa <jo...@redhat.com> wrote:
>> +int vasprintf(char **str, const char *fmt, va_list ap)
>> +{
>> + char buf[1024];
>
> could you please make it work for generic buf len?
The actual size above doesn't matter, except for stack usage.
It could be 1 (are there any bugs triggered when using zero? ;-).
The real buffer is allocated by malloc() below.
>> + int len = vsnprintf(buf, sizeof buf, fmt, ap);
>
> WARNING: sizeof buf should be sizeof(buf)
>
>> +
>> + *str = malloc(len + 1);
>> + if (!*str)
>> + return -1;
>> + strcpy(*str, buf);
>> + return len;
>> +}
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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