From 8ff37ec010ee228c0f7627b43e225103d9f460db Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sun, 3 Nov 2024 23:42:20 +0100 Subject: lib: provide function hextoull() We often convert hexadecimal strings to hextoull(). Provide a wrapper function to simple_strtoull() that does not require specifying the radix. Signed-off-by: Heinrich Schuchardt Reviewed-by: Patrick Delaunay Reviewed-by: Ilias Apalodimas --- include/vsprintf.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include') diff --git a/include/vsprintf.h b/include/vsprintf.h index fe951471426..9da6ce7cc4d 100644 --- a/include/vsprintf.h +++ b/include/vsprintf.h @@ -44,6 +44,19 @@ ulong simple_strtoul(const char *cp, char **endp, unsigned int base); */ unsigned long hextoul(const char *cp, char **endp); +/** + * hex_strtoull - convert a string in hex to an unsigned long long + * + * @cp: The string to be converted + * @endp: Updated to point to the first character not converted + * Return: value decoded from string (0 if invalid) + * + * Converts a hex string to an unsigned long long. If there are invalid + * characters at the end these are ignored. In the worst case, if all characters + * are invalid, 0 is returned + */ +unsigned long long hextoull(const char *cp, char **endp); + /** * dec_strtoul - convert a string in decimal to an unsigned long * -- cgit v1.2.3