From a08c4a9a836b2ddc65cbe0653dd53b779ae48f47 Mon Sep 17 00:00:00 2001
From: Daniel Tartavel <contact@librepc.com>
Date: Wed, 6 May 2020 18:50:57 +0200
Subject: [PATCH] debug

---
 main.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/main.c b/main.c
index 83cdbfc..040dc54 100644
--- a/main.c
+++ b/main.c
@@ -96,7 +96,7 @@ int getprocinfo( int ppid, char cmdline[], char cmd[], char user[] )
 		if( level == 0 && r == 2 )
 		{
 			flag = 1;
-			retval = 2;
+			retval = -1;
 		}else if ( r != -1 )
 		{
 			level++;
@@ -132,10 +132,12 @@ int getprocinfo( int ppid, char cmdline[], char cmd[], char user[] )
 		return 5;
 	}
 	fgets( str, 1024, fh1);
-	null2space( str );
-	pos = strstr( str, "USER=") +5;
-	sscanf( pos, "%s", user);
 	fclose(fh1);
+	null2space( str );
+	if ( (pos = strstr( str, "USER=")) != NULL)
+	{
+		sscanf( pos, "%s", user);
+	}
 	return retval;
 }
 
@@ -162,7 +164,7 @@ int main()
 	char logfile[] = "/var/log/sshdetect.log";
 	char cmd[24];
 	char cmdline[1000];
-	char user[24];
+	char user[24]="";
 	char str[1024];
 	char date[60];
 	time_t now ;
@@ -213,6 +215,7 @@ int main()
 				r = isinarray(pid, childrens, x);
 				if( r == 0 )
 				{
+					user[0]='\0';
 					rinfo = getprocinfo( pid, cmdline, cmd, user );
 					if( rinfo == 0 )
 					{
@@ -223,7 +226,13 @@ int main()
 						time( &now );
 						sprintf( date, "%s", ctime(&now));
 						date[strlen(date)-1] = 0;
-						sprintf( str, "%s \"%s: %s s'est connecté le %s avec la commande: %s %s\"", commande, HOSTNAME, user, date, cmd, cmdline );
+						if (user[0] == '\0')
+						{
+							sprintf( str, "%s \"%s: tunnel ouvert le %s avec la commande: %s %s\"", commande, HOSTNAME, date, cmd, cmdline );
+						}else
+						{
+							sprintf( str, "%s \"%s: %s s'est connecté le %s avec la commande: %s %s\"", commande, HOSTNAME, user, date, cmd, cmdline );
+						}
 						if ( start != 1 )
 						{
 							id=fork();