selinuxfs: remove custom hex_to_bin()
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Eric Paris <eparis@parisplace.org>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index f466587..48a7d00 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -749,14 +749,6 @@
return length;
}
-static inline int hexcode_to_int(int code) {
- if (code == '\0' || !isxdigit(code))
- return -1;
- if (isdigit(code))
- return code - '0';
- return tolower(code) - 'a' + 10;
-}
-
static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
{
char *scon = NULL, *tcon = NULL;
@@ -808,9 +800,11 @@
if (c1 == '+')
c1 = ' ';
else if (c1 == '%') {
- if ((c1 = hexcode_to_int(*r++)) < 0)
+ c1 = hex_to_bin(*r++);
+ if (c1 < 0)
goto out;
- if ((c2 = hexcode_to_int(*r++)) < 0)
+ c2 = hex_to_bin(*r++);
+ if (c2 < 0)
goto out;
c1 = (c1 << 4) | c2;
}