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 heinrich.schuchardt@canonical.com --- include/vsprintf.h | 13 +++++++++++++ lib/strto.c | 5 +++++ 2 files changed, 18 insertions(+)
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 * diff --git a/lib/strto.c b/lib/strto.c index f83ac67c666..206d1e91847 100644 --- a/lib/strto.c +++ b/lib/strto.c @@ -78,6 +78,11 @@ ulong hextoul(const char *cp, char **endp) return simple_strtoul(cp, endp, 16); }
+unsigned long long hextoull(const char *cp, char **endp) +{ + return simple_strtoull(cp, endp, 16); +} + ulong dectoul(const char *cp, char **endp) { return simple_strtoul(cp, endp, 10);