From: Jason Thomas <jason@topic.com.au>
Subject: Add support for returning random usernames
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=115204
--- nullidentd-1.0.orig/nullidentd.c
+++ nullidentd-1.0/nullidentd.c
@@ -7,9 +7,11 @@
 */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <signal.h>
+#include <time.h>
 
 #include "version.h"
 
@@ -18,6 +20,7 @@
 #define MAX_RESPONSE 200
 #define MAX_REQUEST 100
 #define MAX_USERID 50
+#define MAX_RANDOMID 8
 
 void usage()
 {
@@ -46,7 +49,6 @@ int write_response( int fd, char *respon
 
 int read_request( int fd, char *request, int maxlen )
 {
-    int		retval;
     char	c;
     int		bytesread = 0;
 
@@ -76,6 +78,22 @@ int read_request( int fd, char *request,
     return 1;
 }
 
+char *random_userid( void )
+{
+    static char buf[MAX_RANDOMID+1];
+    size_t i;
+    static const char valid[] =
+        "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+    for (i = 0 ; i < MAX_RANDOMID ; i++)
+        buf[i] = valid[rand() % (sizeof(valid) - 1)];
+
+    buf[i] = '\0';
+
+    return buf;
+}
+
+
 void session_timeout( int foo )
 {
     exit( 0 );
@@ -84,12 +102,12 @@ void session_timeout( int foo )
 int main( int argc, const char *argv[] )
 {
     const char *	userid = "foobar";
-    char		c;
     int			infd;
     int			outfd;
     int			response_len;
     char		response[MAX_RESPONSE];
     char		request[MAX_REQUEST];
+    int			gen_random = 0;
 
     if( getgid() == 0 ) {
 	fprintf( stderr, "Group id is root, exitting.\n" );
@@ -114,6 +132,10 @@ int main( int argc, const char *argv[] )
 	}
     }
 
+    if (strcmp(userid, "RANDOM") == 0) {
+	    gen_random = 1;
+    }
+
     infd = fileno( stdin );
     outfd = fileno( stdout );
 
@@ -121,6 +143,8 @@ int main( int argc, const char *argv[] )
     signal( SIGALRM, session_timeout );
     alarm( SESSION_TIMEOUT );
 
+    srand(getpid() ^ time(NULL));
+
     for( ;; ) {
 	/* read the request */
 	if( !read_request( infd, request, MAX_REQUEST ) ) {
@@ -128,6 +152,10 @@ int main( int argc, const char *argv[] )
 	    goto done;
 	}
 
+	if (gen_random) {
+		userid = random_userid();
+	}
+
 	/* format the response */
 	response_len = snprintf( response, sizeof( response ), "%.20s : USERID : UNIX : %.20s\r\n", request, userid );
 
@@ -140,4 +168,3 @@ int main( int argc, const char *argv[] )
 done:
     return 0;
 }
-