On Wed, 2014-08-20 at 12:42 +0300, Andy Shevchenko wrote:
> This allows user to print a given buffer as an escaped string. The rules are
> applied according to an optional mix of flags provided by additional format
> letters.
Thanks Andy. Looks good to me.
Very trivial note:
> diff --git a/lib/vsprintf.c b/lib/vsprintf.c
[]
> @@ -1101,6 +1102,63 @@ char *ip4_addr_string_sa(char *buf, char *end, const
> struct sockaddr_in *sa,
> }
>
> static noinline_for_stack
> +char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
> + const char *fmt)
> +{
> + bool found = true;
> + int count = 1;
> + unsigned int flags = 0;
> + int len;
> +
> + if (spec.field_width == 0)
> + /* nothing to print */
> + return buf;
> +
> + if (ZERO_OR_NULL_PTR(addr))
> + /* NULL pointer */
> + return string(buf, end, NULL, spec);
As the code seems more readable than the comments,
it might be better to remove these comments or
maybe move the comment above the test.
if (spec.field_width == 0)
return buf;
if (ZERO_OR_NULL_PTR(addr))
return string(buf, end, NULL, spec);
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