Signed-off-by: Richard Cochran <[email protected]>
---
util.c | 13 +++++++++++++
util.h | 10 ++++++++++
2 files changed, 23 insertions(+)
diff --git a/util.c b/util.c
index 06c3296..1fa8336 100644
--- a/util.c
+++ b/util.c
@@ -88,6 +88,19 @@ char *pid2str(struct PortIdentity *id)
return buf;
}
+int str2mac(const char *s, unsigned char mac[MAC_LEN])
+{
+ unsigned char buf[MAC_LEN];
+ int c;
+ c = sscanf(s, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
+ &buf[0], &buf[1], &buf[2], &buf[3], &buf[4], &buf[5]);
+ if (c != MAC_LEN) {
+ return -1;
+ }
+ memcpy(mac, buf, MAC_LEN);
+ return 0;
+}
+
int str2pid(const char *s, struct PortIdentity *result)
{
struct PortIdentity pid;
diff --git a/util.h b/util.h
index 98b395b..734ea05 100644
--- a/util.h
+++ b/util.h
@@ -21,6 +21,7 @@
#define HAVE_UTIL_H
#include "ddt.h"
+#include "ether.h"
/**
* Table of human readable strings, one for each port state.
@@ -55,6 +56,15 @@ char *cid2str(struct ClockIdentity *id);
char *pid2str(struct PortIdentity *id);
/**
+ * Scan a string containing a MAC address and convert it into binary form.
+ *
+ * @param s String in human readable form.
+ * @param mac Pointer to a buffer to hold the result.
+ * @return Zero on success, or -1 if the string is incorrectly formatted.
+ */
+int str2mac(const char *s, unsigned char mac[MAC_LEN]);
+
+/**
* Scan a string containing a port identity and convert it into binary form.
*
* @param s String in human readable form.
--
2.1.4
------------------------------------------------------------------------------
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