Moved out from wtpinfo_print.c

FossilOrigin-Name: 89518449f297661ca5de8b485154ad1c1dcda0cf343b1338466441791370a149

src/capwap/cw_format_version.c

@@ -0,0 +1,84 @@
+/*
+    This file is part of libcapwap.
+
+    libcapwap is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    libcapwap is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include <stdio.h>
+
+#include "cw_util.h"
+
+/**
+ *@file
+ *@brief Implementation of cw_sprintf_version 
+ */
+
+
+/**
+ * Converts a CAPWAP version string to readable format.
+ * @param s target where the formated string will be stored
+ * @param ver the CAPWAP version data
+ * @param vendor vendor id 
+ * @param def default string will be printed if version is NULL
+ * @return the number bytes added to the output *s
+ *
+ * This function tries to determine if the bstr_t string version 
+ * is human readable, and if not, it will put out a hexadecimal value
+ * or a dot-seaprated list of number for version elements used
+ * by Cisco.
+ */
+int cw_format_version(char *s, bstr_t ver, uint32_t vendor, char * def)
+{
+	uint8_t * version = bstr_data(ver);
+	int len = bstr_len(ver);
+
+	
+	if (!version)
+		return sprintf(s,"%s",def);
+
+
+	int rs=0;	
+	int i;
+
+
+	if ( cw_is_printable(version,len)  ){
+		if (len != 0 )
+			rs+=sprintf(s+rs,"%s",version);
+		else
+			rs+=sprintf(s+rs,"''");
+	}
+	else{
+		for (i=0; i<len && i<20; i++){
+			rs+=sprintf(s+rs,"%02X",version[i]);
+		}
+
+		int dot=0;
+
+		rs+=sprintf(s+rs," (");
+		for (i=0; i<len && i<20; i++){
+			if (dot) 
+				rs+=sprintf(s+rs,".");
+			dot=1;
+			rs+=sprintf(s+rs,"%d",version[i]);
+		}
+		rs+=sprintf(s+rs,")");
+	}
+
+
+	rs+=sprintf(s+rs,", Vendor Id: %d, %s",vendor, cw_ianavendoridtostr(vendor));
+	rs+=sprintf(s+rs,"\n");
+	return rs;	
+}
+