From 7df54d316e70e2d6ae080ef98aa9d2388bbb8af9 Mon Sep 17 00:00:00 2001
From: Piotr Wilczek
Date: Sun, 27 Jan 2013 22:59:24 +0000
Subject: vsprintf: add ustrtoll function
Add 'ustrtoull' function to convert size from string (ex: 1GiB)
to unsigned long long type
Signed-off-by: Piotr Wilczek
Signed-off-by: Kyungmin Park
---
lib/vsprintf.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
(limited to 'lib')
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 3c432f8764..533a96b85e 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -126,6 +126,29 @@ unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
return result;
}
+unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
+{
+ unsigned long long result = simple_strtoull(cp, endp, base);
+ switch (**endp) {
+ case 'G':
+ result *= 1024;
+ /* fall through */
+ case 'M':
+ result *= 1024;
+ /* fall through */
+ case 'K':
+ case 'k':
+ result *= 1024;
+ if ((*endp)[1] == 'i') {
+ if ((*endp)[2] == 'B')
+ (*endp) += 3;
+ else
+ (*endp) += 2;
+ }
+ }
+ return result;
+}
+
unsigned long long simple_strtoull(const char *cp, char **endp,
unsigned int base)
{
--
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