Staging: wlan-ng: Move wlan_mkprintstr() and wlan_hexchar() macros into prism2sta.c

Signed-off-by: Moritz Muehlenhoff <jmm@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 22 insertions, 5 deletions

diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index b1e4a99..eb29a0a 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -91,13 +91,30 @@
 #include "prism2mgmt.h"
 
 /*================================================================*/
-/* Local Constants */
-
-/*================================================================*/
 /* Local Macros */
 
-/*================================================================*/
-/* Local Types */
+#define wlan_hexchar(x) (((x) < 0x0a) ? ('0' + (x)) : ('a' + ((x) - 0x0a)))
+
+/* Create a string of printable chars from something that might not be */
+/* It's recommended that the str be 4*len + 1 bytes long */
+#define wlan_mkprintstr(buf, buflen, str, strlen) \
+{ \
+	int i = 0; \
+	int j = 0; \
+	memset(str, 0, (strlen)); \
+	for (i = 0; i < (buflen); i++) { \
+		if ( isprint((buf)[i]) ) { \
+			(str)[j] = (buf)[i]; \
+			j++; \
+		} else { \
+			(str)[j] = '\\'; \
+			(str)[j+1] = 'x'; \
+			(str)[j+2] = wlan_hexchar(((buf)[i] & 0xf0) >> 4); \
+			(str)[j+3] = wlan_hexchar(((buf)[i] & 0x0f)); \
+			j += 4; \
+		} \
+	} \
+}
 
 /*================================================================*/
 /* Local Static Definitions */