On 2009-12-17, Denis Doroshenko <denis.doroshe...@gmail.com> wrote: > RFC2865 WRT Class field content says the following: > > The String field is one or more octets.
So the RD_STRING is correct, > string 1-253 octets containing binary data (values 0 through > 255 decimal, inclusive). Strings of length zero (0) > MUST NOT be sent; omit the entire attribute instead. and the same problem could occur with other strings. How about running them through strvisx() instead? Index: print-radius.c =================================================================== RCS file: /cvs/src/usr.sbin/tcpdump/print-radius.c,v retrieving revision 1.8 diff -u -p -r1.8 print-radius.c --- print-radius.c 23 May 2006 21:57:15 -0000 1.8 +++ print-radius.c 19 Dec 2009 13:04:46 -0000 @@ -32,7 +32,9 @@ #include <arpa/inet.h> #include <stdio.h> +#include <stdlib.h> #include <string.h> +#include <vis.h> /* RADIUS support for tcpdump, Thomas Ptacek <t...@enteract.com> */ @@ -206,6 +208,7 @@ static void r_print_address(int code, in static void r_print_string(int code, int len, const u_char *data) { char string[128]; + char vis[128*4]; if(!len) { fputs(" ?", stdout); @@ -218,7 +221,8 @@ static void r_print_string(int code, int memset(string, 0, 128); memcpy(string, data, len); - fprintf(stdout, " %s", string); + strvisx(vis, string, len, 0); + fprintf(stdout, " %s", vis); } static void r_print_hex(int code, int len, const u_char *data) {