X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fpackets.c;h=5c51feb1f3d289490de750063c8e9d79214df822;hb=67b30fcde789088b2e43407167f9ad656c2cc1e5;hp=0547791ab653d86a8812306a8c27ab948f521dc8;hpb=576e26d7b47f4e53116ef0b5f035d260f426d37b;p=openvswitch

diff --git a/lib/packets.c b/lib/packets.c
index 0547791a..5c51feb1 100644
--- a/lib/packets.c
+++ b/lib/packets.c
@@ -17,8 +17,30 @@
 #include <config.h>
 #include "packets.h"
 #include <netinet/in.h>
+#include <stdlib.h>
 #include "ofpbuf.h"
 
+bool
+dpid_from_string(const char *s, uint64_t *dpidp)
+{
+    *dpidp = (strlen(s) == 16 && strspn(s, "0123456789abcdefABCDEF") == 16
+              ? strtoll(s, NULL, 16)
+              : 0);
+    return *dpidp != 0;
+}
+
+bool
+eth_addr_from_string(const char *s, uint8_t ea[ETH_ADDR_LEN])
+{
+    if (sscanf(s, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(ea))
+        == ETH_ADDR_SCAN_COUNT) {
+        return true;
+    } else {
+        memset(ea, 0, ETH_ADDR_LEN);
+        return false;
+    }
+}
+
 /* Fills 'b' with an 802.2 SNAP packet with Ethernet source address 'eth_src',
  * the Nicira OUI as SNAP organization and 'snap_type' as SNAP type.  The text
  * string in 'tag' is enclosed as the packet payload.