diff --git a/source/bforce/bforce.c b/source/bforce/bforce.c
index 0da76e2..33578af 100644
--- a/source/bforce/bforce.c
+++ b/source/bforce/bforce.c
@@ -259,11 +259,15 @@ int main(int argc, char *argv[], char *envp[])
 	
 	mainenv[0] = NULL;
 	i=0;
-	while (envp[i]) {
-		mainenv[i] = malloc(strlen(envp[i])+2);
-		strcpy(mainenv[i], envp[i]);
-		mainenv[++i] = NULL;
-		DEB((D_FREE, "Program ENV: %s\n", mainenv[(i-1)]));
+	if ( envp[0] ) {
+		while (envp[i]) {
+			mainenv[i] = malloc(strlen(envp[i])+2);
+			if ( mainenv[i] ) {
+				strcpy(mainenv[i], envp[i]);
+				mainenv[++i] = NULL;
+				DEB((D_FREE, "Program ENV: %s\n", mainenv[(i-1)]));
+			}
+		}
 	}
 	
 	memset(&opts, '\0', sizeof(s_bforce_opts));
diff --git a/source/bforce/conf_proc.c b/source/bforce/conf_proc.c
index fc85dbf..c9604e4 100644
--- a/source/bforce/conf_proc.c
+++ b/source/bforce/conf_proc.c
@@ -662,7 +662,7 @@ static int proc_domain(s_domain *dest, char *value)
 			if( p_path[strlen(p_path)-1] == DIRSEPCHR )
 				dest->path = xstrcpy(p_path);
 			else
-				dest->path = string_concat(p_path, DIRSEPSTR, NULL);
+				dest->path = string_concat(p_path, DIRSEPSTR, '\0');
 			return(PROC_RC_OK);
 		}
 		else
@@ -751,7 +751,7 @@ static int proc_path(s_string *dest, char *value)
 	if( value[strlen(value)-1] == DIRSEPCHR )
 		dest->str = xstrcpy(value);
 	else
-		dest->str = string_concat(value, DIRSEPSTR, NULL);
+		dest->str = string_concat(value, DIRSEPSTR, '\0');
 
 	return(PROC_RC_OK);
 }
@@ -1004,7 +1004,7 @@ static int proc_filebox(s_filebox *dest, char *value)
 			if( p_path[strlen(p_path)-1] == DIRSEPCHR )
 				dest->path = xstrcpy(p_path);
 			else
-				dest->path = string_concat(p_path, DIRSEPSTR, NULL);
+				dest->path = string_concat(p_path, DIRSEPSTR, '\0');
 			dest->flavor = flavor;
 			return rc;
 		}
diff --git a/source/bforce/daemon.c b/source/bforce/daemon.c
index fc9ff6e..b3b86b1 100644
--- a/source/bforce/daemon.c
+++ b/source/bforce/daemon.c
@@ -1035,7 +1035,7 @@ int daemon_run(const char *confname, const char *incname, bool quit)
 			/*
 			 * Check rescan timer
 			 */
-			if( !timer_running(timer_rescan) || timer_expired(timer_rescan) )
+			if( timer_expired(timer_rescan) )
 			{
 				(void)daemon_rescan_sysqueue(&daemon_sys_queue,
 						daemon_queues);
@@ -1045,7 +1045,7 @@ int daemon_run(const char *confname, const char *incname, bool quit)
 			/*
 			 * Check alive timer
 			 */
-			if( !timer_running(timer_alive) || timer_expired(timer_alive) )
+			if( timer_expired(timer_alive) )
 			{
 				daemon_alive_message(&daemon_sys_queue);
 				timer_set(&timer_alive, DAEMON_ALIVE_TIMER);
diff --git a/source/bforce/expression.tab.c b/source/bforce/expression.tab.c
index 72eb1eb..805928a 100644
--- a/source/bforce/expression.tab.c
+++ b/source/bforce/expression.tab.c
@@ -955,7 +955,7 @@ yydestruct (char *yymsg,
 {
   YY_USE (yyvaluep);
   if (!yymsg)
-    yymsg = "Deleting";
+    yymsg = "Deleting";  // cppcheck_suppress uselessAssignmentPtrArg
   YY_SYMBOL_PRINT (yymsg, yykind, yyvaluep, yylocationp);
 
   YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
@@ -1067,8 +1067,9 @@ yysetstate:
            data in use in that stack, in bytes.  This used to be a
            conditional around just the two extra args, but that might
            be undefined if yyoverflow is a macro.  */
+       
         yyoverflow (YY_("memory exhausted"),
-                    &yyss1, yysize * YYSIZEOF (*yyssp),
+                    &yyss1, yysize * YYSIZEOF (*yyssp),  // cppcheck_suppress syntaxError
                     &yyvs1, yysize * YYSIZEOF (*yyvsp),
                     &yyls1, yysize * YYSIZEOF (*yylsp),
                     &yystacksize);
@@ -1088,7 +1089,7 @@ yysetstate:
         yy_state_t *yyss1 = yyss;
         union yyalloc *yyptr =
           YY_CAST (union yyalloc *,
-                   YYSTACK_ALLOC (YY_CAST (YYSIZE_T, YYSTACK_BYTES (yystacksize))));
+                   YYSTACK_ALLOC (YY_CAST (YYSIZE_T, YYSTACK_BYTES (yystacksize)))); // cppcheck_suppress sizeofwithnumericparameter
         if (! yyptr)
           YYNOMEM;
         YYSTACK_RELOCATE (yyss_alloc, yyss);
diff --git a/source/bforce/freq_proc.c b/source/bforce/freq_proc.c
index 6249dc1..cd6deb2 100644
--- a/source/bforce/freq_proc.c
+++ b/source/bforce/freq_proc.c
@@ -200,9 +200,18 @@ static void req_proc_ext(s_freq *freq, char *reqname)
 	char srfname[L_tmpnam+5];
 	char rspname[L_tmpnam+5];
 	char *comline = NULL;
+	char *chunk;
 	
-	if( tmpnam(srfname) )
+	chunk = xmalloc(L_tmpnam+1);
+	if ( chunk )
 	{
+		getrandname(chunk, L_tmpnam);
+		chunk[L_tmpnam]='\0';
+		strnxcpy(srfname, chunk, L_tmpnam);
+		free(chunk);
+	
+	//if( tmpnam(srfname) )
+	//{
 		strncpy(rspname, srfname, L_tmpnam+4);
 		rspname[L_tmpnam+4] = '\0';
 		strcat(srfname, ".srf");
diff --git a/source/bforce/io_unix_lock.c b/source/bforce/io_unix_lock.c
index 7c2bd92..7009157 100644
--- a/source/bforce/io_unix_lock.c
+++ b/source/bforce/io_unix_lock.c
@@ -116,7 +116,7 @@ static pid_t lock_read_pid(const char *lckname)
 	if( len == sizeof(pid) || sscanf(buf, "%d", &pid) != 1 || pid == 0 )
 	{
 		/* We found binary lock file? */
-		pid = *((int *)buf);
+		pid = *((u_int *)buf);
 #ifndef LOCK_BINARY
 		log("warning: found binary lock file %s", lckname);
 #endif
@@ -197,12 +197,15 @@ static int lock_create(const char *lckname, const char *tmpname)
 	int rc, fd;
 	int tries;
 	
+	
 #ifdef LOCK_BINARY
 	pid_t pid;
 #else
 	char buf[32];
 #endif
 
+
+
 	ASSERT(lckname != NULL && tmpname != NULL);
 
 	if( (fd = open(tmpname, O_CREAT | O_RDWR, 0644)) < 0 )
@@ -299,8 +302,7 @@ int port_checklock(const char *lockdir, const s_modemport *modemport)
 	
 	rc = lock_check(lckname);
 	
-	if( lckname )
-		free(lckname);
+	free(lckname);
 	
 	return rc;
 }
@@ -312,20 +314,24 @@ int port_lock(const char *lockdir, const s_modemport *modemport)
 {
 	int rc;
 	char *lckname;
-	char *tmpname, *p_tmpname;
+	char *tmpname, *p_tmpname, *chunk;
 	
 	if( *lockdir )
 		tmpname = xstrcpy(lockdir);
 	else
 		tmpname = xstrcpy(BFORCE_LOCK_DIR);
 		
-	tmpname = xstrcat(tmpname, "bfXXXXXX");
+	//tmpname = xstrcat(tmpname, "bfXXXXXX");
 	
-	if( (p_tmpname = mktemp(tmpname)) == NULL )
-	{
-		logerr("can't generate unique file name from \"%s\"", tmpname);
-		free(tmpname); return 1;
-	}
+	chunk = xmalloc(7);
+	getrandname(chunk,6);
+	p_tmpname = string_concat(tmpname, "bf", chunk, '\0');
+	
+	//if( (p_tmpname = mktemp(tmpname)) == NULL )
+	//{
+	//	logerr("can't generate unique file name from \"%s\"", tmpname);
+	//	free(tmpname); return 1;
+	//}
 
 	if( (lckname = lock_getname(lockdir, modemport)) == NULL )
 	{
@@ -340,8 +346,7 @@ int port_lock(const char *lockdir, const s_modemport *modemport)
 	
 	if( tmpname )
 		free(tmpname);
-	if( lckname )
-		free(lckname);
+	free(lckname);
 	
 	return rc;
 }
diff --git a/source/bforce/logger.c b/source/bforce/logger.c
index 40783cb..1d0c48f 100644
--- a/source/bforce/logger.c
+++ b/source/bforce/logger.c
@@ -144,7 +144,7 @@ int log_close(void)
 
 	ASSERT(log_fp);
 	
-	if( log_fp )
+	if( log_fp != NULL )
 	{
 		rc = fclose(log_fp); 
 		DEB((D_INFO,"Closing log file."));
@@ -543,7 +543,7 @@ void debug(unsigned long what, const char *str, ...)
 			debug_open();
 		}
 		
-		if( debug_fp )
+		if( debug_fp != NULL )
 		{
 			fprintf(debug_fp, "%s ", time_string_log(buf, sizeof(buf), 0));
 			va_start(args, str);
diff --git a/source/bforce/os_unix.c b/source/bforce/os_unix.c
index 8bb9f38..aaf46b1 100644
--- a/source/bforce/os_unix.c
+++ b/source/bforce/os_unix.c
@@ -155,8 +155,8 @@ int exec_redirect_descriptor(int desc, const char *fname, int flags)
 		close(fd);
 		return -1;
 	}
-//cppcheck-suppress resourceLeak
-	return 0;
+
+	return 0; //cppcheck-suppress resourceLeak
 }
 
 int exec_command(s_exec_options *eopt)
diff --git a/source/bforce/outb_getname.c b/source/bforce/outb_getname.c
index 7259853..0d18ea7 100644
--- a/source/bforce/outb_getname.c
+++ b/source/bforce/outb_getname.c
@@ -46,7 +46,7 @@ char *out_getname_4d(s_faddr addr)
 			else
 				sprintf(buf, "%04x%04x.pnt/%08x", addr.net, addr.node, addr.point);
 			
-			dest = string_concat(p_outbound, buf, NULL);
+			dest = string_concat(p_outbound, buf, '\0');
 		}
 		else
 		{
@@ -55,7 +55,7 @@ char *out_getname_4d(s_faddr addr)
 			else
 				sprintf(buf, ".%03x/%04x%04x.pnt/%08x", addr.zone, addr.net, addr.node, addr.point);
 
-			dest = string_concat(out_root, out_main, buf, NULL);
+			dest = string_concat(out_root, out_main, buf, '\0');
 		}
 	}
 	
@@ -83,7 +83,7 @@ char *out_getname_domain(s_faddr addr)
 			else
 				sprintf(buf, "%04x%04x.pnt/%08x", addr.net, addr.node, addr.point);
 			
-			dest = string_concat(cfptr->d.domain.path, buf, NULL);
+			dest = string_concat(cfptr->d.domain.path, buf, '\0');
 			break;
 		}
 	}
@@ -102,7 +102,7 @@ char *out_getname_amiga(s_faddr addr)
 	if( p_amigaoutbound && *p_amigaoutbound )
 	{
 		sprintf(buf, "%d.%d.%d.%d", addr.zone, addr.net, addr.node, addr.point);
-		dest = string_concat(p_amigaoutbound, buf, NULL);
+		dest = string_concat(p_amigaoutbound, buf, '\0');
 	}
 	
 	return dest;
diff --git a/source/bforce/outb_scan.c b/source/bforce/outb_scan.c
index c620d46..9f3c607 100644
--- a/source/bforce/outb_scan.c
+++ b/source/bforce/outb_scan.c
@@ -155,7 +155,7 @@ static int out_scan_bso_dir(s_outbound_callback_data *callback,
 				
 				if( alst || !fa_list )
 				{
-					p = string_concat(path, dirent->d_name, "/", NULL);
+					p = string_concat(path, dirent->d_name, "/", '\0');
 					out_scan_bso_dir(callback, fa_list, addr, p, 1);
 					if( p ) { free(p); p = NULL; }
 				}
@@ -178,7 +178,7 @@ static int out_scan_bso_dir(s_outbound_callback_data *callback,
 				
 				if( alst || !fa_list )
 				{
-					callback->path = string_concat(path, dirent->d_name, NULL);
+					callback->path = string_concat(path, dirent->d_name, '\0');
 					callback->addr = *addr;
 					callback->type = OUTB_TYPE_BSO;
 					callback->flavor = -1;
@@ -250,7 +250,7 @@ static int out_scan_bso(s_outbound_callback_data *callback,
 		
 			if( alst || mailfor == NULL )
 			{
-				newpath = string_concat(out_root, dirent->d_name, "/", NULL);
+				newpath = string_concat(out_root, dirent->d_name, "/", '\0');
 				out_scan_bso_dir(callback, mailfor, &addr, newpath, 0);
 				free(newpath);
 			}
@@ -296,7 +296,7 @@ static int out_scan_fbox_dir(s_outbound_callback_data *callback,
 	
 	while( (dirent = readdir(dir)) )
 	{
-		callback->path = string_concat(path, dirent->d_name, NULL);
+		callback->path = string_concat(path, dirent->d_name, '\0');
 		if( is_regfile(callback->path) )
 		{
 			callback->addr = addr;
@@ -340,7 +340,7 @@ static int out_scan_lbox(s_outbound_callback_data *callback,
 					alst = alst->next );
 				if( alst )
 				{
-					newpath = string_concat(path, dirent->d_name, "/", NULL);
+					newpath = string_concat(path, dirent->d_name, "/", '\0');
 					(void)out_scan_fbox_dir(callback, newpath, addr, FLAVOR_HOLD);
 					free(newpath);					
 				}
@@ -348,7 +348,7 @@ static int out_scan_lbox(s_outbound_callback_data *callback,
 			else
 			{
 				/* Scan all fileboxes */
-				newpath = string_concat(path, dirent->d_name, "/", NULL);
+				newpath = string_concat(path, dirent->d_name, "/", '\0');
 				(void)out_scan_fbox_dir(callback, newpath, addr, FLAVOR_HOLD);
 				free(newpath);
 			}
@@ -424,7 +424,7 @@ static int out_scan_aso(s_outbound_callback_data *callback,
 			
 			if( alst || !mailfor )
 			{
-				callback->path = string_concat(path, dirent->d_name, NULL);
+				callback->path = string_concat(path, dirent->d_name, '\0');
 				callback->addr = addr;
 				callback->type = OUTB_TYPE_ASO;
 				callback->flavor = -1;
diff --git a/source/bforce/prot_binkp.c b/source/bforce/prot_binkp.c
index 93e5df9..1e7f098 100644
--- a/source/bforce/prot_binkp.c
+++ b/source/bforce/prot_binkp.c
@@ -593,7 +593,7 @@ else if (bstate->mode == bmode_transfer) {
             case 1: //send M_FILE - M_GET forcibly sets this phase. M_GET must open needed file
                 DEB((D_24554, "send M_FILE"));
                 buf[0] = BPMSG_FILE;
-                *block_length = 1+sprintf(buf+1, "%s %ld %ld 0", bstate->pi->send->net_name, 
+                *block_length = 1+sprintf(buf+1, "%s %zu %lu 0", bstate->pi->send->net_name, 
                         bstate->pi->send->bytes_total, bstate->pi->send->mod_time);
                 DEB((D_24554, "M_FILE: %s", buf+1));
                 *block_type = BINKP_BLK_CMD;
@@ -823,7 +823,7 @@ case BPMSG_FILE:             /* File information */
 	        DEB((D_24554, "no, skipping; TODO: accept it"));
 		if( bstate->extracmd[0] != (char)-1 ) return 0;
 		bstate->extracmd[0] = BPMSG_SKIP;
-		sprintf(bstate->extracmd+1, "%s %ld %ld %ld", recvfi.fn, recvfi.sz, recvfi.tm, recvfi.offs);
+		sprintf(bstate->extracmd+1, "%s %zu %lu %zu", recvfi.fn, recvfi.sz, recvfi.tm, recvfi.offs);
 		bstate->extraislast = false;
 		return 1;
 	    }
diff --git a/source/bforce/prot_common.c b/source/bforce/prot_common.c
index afd6e9d..1d9ccae 100644
--- a/source/bforce/prot_common.c
+++ b/source/bforce/prot_common.c
@@ -1053,7 +1053,7 @@ int p_rx_fopen(s_protinfo *pi, char *fn, size_t sz, time_t tm, mode_t mode)
 	/*
 	 *  Check, there is enough space in our inbound
 	 */
-	if (openmode == "a") needed_bytes_total = minfree + pi->recv->bytes_total - pi->recv->bytes_skipped;
+	if ( strcmp(openmode, "a") == 0 ) needed_bytes_total = minfree + pi->recv->bytes_total - pi->recv->bytes_skipped;
 		else 	     needed_bytes_total = minfree + pi->recv->bytes_total;
 
 	if( minfree > 0 && getfreespace(state.inbound) < needed_bytes_total )
diff --git a/source/bforce/prot_emsi.c b/source/bforce/prot_emsi.c
index 028fba3..6798cec 100644
--- a/source/bforce/prot_emsi.c
+++ b/source/bforce/prot_emsi.c
@@ -449,8 +449,8 @@ static int sm_rx_waitseq(s_rx_emsidat *d)
 static int sm_rx_getdat(s_rx_emsidat *d)
 {
 	int rc = 0;
-	int pos = 0;
-	int emsi_len = 0;
+	u_int pos = 0;
+	u_int emsi_len = 0;
 	short unsigned ourcrc;
 	short unsigned remcrc;
 	char *emsi_dat = NULL;
diff --git a/source/bforce/prot_emsi_misc.c b/source/bforce/prot_emsi_misc.c
index 7f91403..b9b68e8 100644
--- a/source/bforce/prot_emsi_misc.c
+++ b/source/bforce/prot_emsi_misc.c
@@ -65,7 +65,7 @@ static char *add_str(char *source, const char *add)
 		{
 			len += 2;
 			dest = (char *)xrealloc(dest, len);
-			sprintf(&dest[pos], "\\%02hd", *(unsigned char*)add);
+			sprintf(&dest[pos], "\\%02hhu", *(unsigned char*)add);
 			add += 1;
 			pos += 3;
 		}
@@ -200,38 +200,12 @@ char *emsi_createdat(s_emsi *emsi)
 			if( emsi->compcodes.NCP ) tmp = add_str(tmp, "NCP,");
 		} else {
 			ord = xmalloc(4);
-			DEB((D_HSHAKE,"Protocol order found: %s", p_order));
-			ord = strncpy(ord, p_order,3);
-			ord[3] = '\0';
-			DEB((D_HSHAKE,"Protocol order chunk: %s", ord));
-			if ( ord == NULL )
-				DEB((D_HSHAKE,"EMSI create order error"));
-			if ( !strcmp(ord,"HYD") )
-				if ( emsi->compcodes.HYD) tmp = add_str(tmp, "HYD,");
-			if ( !strcmp(ord,"JAN") )
-				if ( emsi->compcodes.JAN) tmp = add_str(tmp, "JAN,");
-			if ( !strcmp(ord,"DZA") )
-				if ( emsi->compcodes.DZA) tmp = add_str(tmp, "DZA,");
-			if ( !strcmp(ord,"ZAP") )
-				if ( emsi->compcodes.ZAP) tmp = add_str(tmp, "ZAP,");
-			if ( !strcmp(ord,"ZMO") )
-				if ( emsi->compcodes.ZMO) tmp = add_str(tmp, "ZMO,");
-			if ( !strcmp(ord,"TZA") )
-				if ( emsi->compcodes.TZA) tmp = add_str(tmp, "TZA,");
-			if ( !strcmp(ord,"SLK") )
-				if ( emsi->compcodes.SLK) tmp = add_str(tmp, "SLK,");
-			if ( !strcmp(ord,"KER") )
-				if ( emsi->compcodes.KER) tmp = add_str(tmp, "KER,");
-			if ( !strcmp(ord,"NCP") )
-				if ( emsi->compcodes.NCP) tmp = add_str(tmp, "NCP,");
-			p_order = strchr(p_order, ',');
-			if ( p_order ) p_order = p_order+1; /* skip ',' */
-			while ( p_order ) {
+			if (ord) 
+			{
+				DEB((D_HSHAKE,"Protocol order found: %s", p_order));
 				ord = strncpy(ord, p_order,3);
 				ord[3] = '\0';
 				DEB((D_HSHAKE,"Protocol order chunk: %s", ord));
-				if ( ord == NULL )
-					DEB((D_HSHAKE,"EMSI create order error"));
 				if ( !strcmp(ord,"HYD") )
 					if ( emsi->compcodes.HYD) tmp = add_str(tmp, "HYD,");
 				if ( !strcmp(ord,"JAN") )
@@ -251,9 +225,34 @@ char *emsi_createdat(s_emsi *emsi)
 				if ( !strcmp(ord,"NCP") )
 					if ( emsi->compcodes.NCP) tmp = add_str(tmp, "NCP,");
 				p_order = strchr(p_order, ',');
-				if ( p_order ) p_order = p_order+1; /* skip ',' */	
+				if ( p_order ) p_order = p_order+1; /* skip ',' */
+				while ( p_order ) {
+					ord = strncpy(ord, p_order,3);
+					ord[3] = '\0';
+					DEB((D_HSHAKE,"Protocol order chunk: %s", ord));
+					if ( !strcmp(ord,"HYD") )
+						if ( emsi->compcodes.HYD) tmp = add_str(tmp, "HYD,");
+					if ( !strcmp(ord,"JAN") )
+						if ( emsi->compcodes.JAN) tmp = add_str(tmp, "JAN,");
+					if ( !strcmp(ord,"DZA") )
+						if ( emsi->compcodes.DZA) tmp = add_str(tmp, "DZA,");
+					if ( !strcmp(ord,"ZAP") )
+						if ( emsi->compcodes.ZAP) tmp = add_str(tmp, "ZAP,");
+					if ( !strcmp(ord,"ZMO") )
+						if ( emsi->compcodes.ZMO) tmp = add_str(tmp, "ZMO,");
+					if ( !strcmp(ord,"TZA") )
+						if ( emsi->compcodes.TZA) tmp = add_str(tmp, "TZA,");
+					if ( !strcmp(ord,"SLK") )
+						if ( emsi->compcodes.SLK) tmp = add_str(tmp, "SLK,");
+					if ( !strcmp(ord,"KER") )
+						if ( emsi->compcodes.KER) tmp = add_str(tmp, "KER,");
+					if ( !strcmp(ord,"NCP") )
+						if ( emsi->compcodes.NCP) tmp = add_str(tmp, "NCP,");
+					p_order = strchr(p_order, ',');
+					if ( p_order ) p_order = p_order+1; /* skip ',' */	
+				}
+				free(ord);
 			}
-			free(ord);
 		}
 		
 		if( emsi->compcodes.FRQ ) tmp = add_str(tmp, "FRQ,");
@@ -452,7 +451,7 @@ char *emsi_createdat(s_emsi *emsi)
 static char *get_field(char **str, char from, char to)
 {
 	char *dst, *src, *dest = NULL;
-	int ch;
+	u_int ch;
 	
 	src = *str;
 	
@@ -722,7 +721,7 @@ int emsi_parsedat(char *emsi_dat, s_emsi *emsi)
 			if( (p=get_field(&emsi_dat, '{', '}')) == NULL ) return(1);
 			if( p && *p )
 			{
-				if( sscanf(p, "%08X %08X", &emsi->netmail_size, &emsi->arcmail_size) == 2 )
+				if( sscanf(p, "%08zX %08zX", &emsi->netmail_size, &emsi->arcmail_size) == 2 )
 				{
 					emsi->have_traf = 1;
 				}
@@ -738,7 +737,7 @@ int emsi_parsedat(char *emsi_dat, s_emsi *emsi)
 			if( (p=get_field(&p, '[', ']')) == NULL ) return(1);
 			if( p && *p )
 			{
-				if( sscanf(p, "%08X", &emsi->files_size) == 1 )
+				if( sscanf(p, "%08zX", &emsi->files_size) == 1 )
 				{
 					emsi->have_moh = 1;
 				}
@@ -781,21 +780,24 @@ int emsi_parsedat(char *emsi_dat, s_emsi *emsi)
 			/* Parse EMSI TZUTC in fmt (+|-)HHMM */
 			if( *p ) {
 				tzc = malloc(2);
-				DEB((D_HSHAKE, "Got TZUTC=%s for parsing", p));
-				tzn = sscanf( p, "%1c%02u%02u", tzc, &tzh, &tzm);
-				tzc[1] = '\0';
-				if ( tzn == 3) {
-					DEB((D_HSHAKE, "Got TZC=%s , H=%u, M=%u", tzc, tzh,tzm));
-					emsi->have_tzutc = 1;
-					if ( strcmp(tzc, "-") == 0 ) {
-						emsi->tzutc = -(tzh*60 + tzm);
+				if (tzc) 
+				{
+					DEB((D_HSHAKE, "Got TZUTC=%s for parsing", p));
+					tzn = sscanf( p, "%1c%02u%02u", tzc, &tzh, &tzm);
+					tzc[1] = '\0';
+					if ( tzn == 3) {
+						DEB((D_HSHAKE, "Got TZC=%s , H=%u, M=%u", tzc, tzh,tzm));
+						emsi->have_tzutc = 1;
+						if ( strcmp(tzc, "-") == 0 ) {
+							emsi->tzutc = -(tzh*60 + tzm);
+						} else {
+							emsi->tzutc = tzh*60 + tzm;
+						}
 					} else {
-						emsi->tzutc = tzh*60 + tzm;
+						DEB((D_HSHAKE,"TZUTC value not parsed!"));
 					}
-				} else {
-					DEB((D_HSHAKE,"TZUTC value not parsed!"));
+					free(tzc);
 				}
-				free(tzc);
 			}
 		}
 		else
diff --git a/source/bforce/prot_hydra.c b/source/bforce/prot_hydra.c
index ec7e26c..c2159e9 100644
--- a/source/bforce/prot_hydra.c
+++ b/source/bforce/prot_hydra.c
@@ -100,7 +100,8 @@ char *hydra_pkttype_names[] =
 	"HPKT_EOFACK",
 	"HPKT_END",
 	"HPKT_IDLE",
-	"HPKT_DEVDATA"
+	"HPKT_DEVDATA",
+	"HPKT_DEVDACK"
 };
 
 char *hydra_char_names[] =
@@ -1049,8 +1050,8 @@ static int hydra_parse_init(s_hydrainfo *hi, char *pkt, size_t pktlen)
 		if( appinf && canopt && desopt && window && prefix )
 		{
 			char buf[256];
-			long txwindow = 0L;
-			long rxwindow = 0L;
+			unsigned long txwindow = 0UL;
+			unsigned long rxwindow = 0UL;
 	
 			DEB((D_PROT, "hydra: revtime = \"%s\"", time_string_long(buf, sizeof(buf), revtime)));
 			DEB((D_PROT, "hydra: appinf  = \"%s\"", appinf));
@@ -1637,7 +1638,7 @@ int hydra_batch(s_hydrainfo *hi, s_protinfo *pi)
 					char  *p;
 					
 					/* Get file modification time and size */
-					sscanf(hi->ibuf, "%08lx%08x%*08x%*08x%*08x",
+					sscanf(hi->ibuf, "%08lx%08zx%*08zx%*08zx%*08zx",
 						(unsigned long *)&modtime, &filesize);
 					
 					/* Convert local time -> UTC */
diff --git a/source/bforce/prot_zmmisc.c b/source/bforce/prot_zmmisc.c
index 21b9fd1..1d629b3 100644
--- a/source/bforce/prot_zmmisc.c
+++ b/source/bforce/prot_zmmisc.c
@@ -67,7 +67,7 @@ static const char *FrameTypes[] =
 	"ZCOMMAND",
 	"ZSTDERR",
 	"Unused"
-#define FRTYPES 22		/* Total number of frame types in this array */
+#define FRTYPES 20		/* Total number of frame types in this array */
 				/*  not including psuedo negative entries    */
 };
 #endif
diff --git a/source/bforce/prot_zmrecv.c b/source/bforce/prot_zmrecv.c
index 65dde29..fa26258 100644
--- a/source/bforce/prot_zmrecv.c
+++ b/source/bforce/prot_zmrecv.c
@@ -548,7 +548,7 @@ static int zmodem_proc_ZFILE(s_protinfo *pi, char *blkptr, size_t blklen)
 	fileiptr = blkptr + strlen(blkptr) + 1;
 	
 	if( fileiptr >= (blkptr + blklen) ||
-	    sscanf(fileiptr, "%d%lo", &filesize, (unsigned long *)&filetime) < 1 )
+	    sscanf(fileiptr, "%zu%lo", &filesize, (unsigned long *)&filetime) < 1 )
 	{
 		log("zmodem: got invalid ZFILE packet");
 		return 1;
diff --git a/source/bforce/prot_zmsend.c b/source/bforce/prot_zmsend.c
index 714b896..794b01a 100644
--- a/source/bforce/prot_zmsend.c
+++ b/source/bforce/prot_zmsend.c
@@ -47,14 +47,18 @@ static void zmodem_add_empty_packet(s_protinfo *pi)
 	s_filelist **ptrl;
 	s_packet pkt;
 	char tmpname[] = "/tmp/bfXXXXXX";
+	char *chunk;
 	char *p_tmpname;
-			
-	if( (p_tmpname = mktemp(tmpname)) == NULL )
-	{
-		logerr("cannot generate temp. file name for packet from \"%s\"", tmpname);
+	
+	chunk = xmalloc(7);
+	if (!chunk) {
+		logerr("cannot generate temp. file name for packet");
 		return;
 	}
+	getrandname(chunk, 6);
+	p_tmpname = string_concat("/tmp/bf", chunk, '\0');
 	
+	free(chunk);		
 	memset(&pkt, '\0', sizeof(s_packet));
 	
 	pkt.dest = state.node.addr;
diff --git a/source/bforce/sess_call.c b/source/bforce/sess_call.c
index 161c4f9..b0c04a6 100644
--- a/source/bforce/sess_call.c
+++ b/source/bforce/sess_call.c
@@ -519,7 +519,7 @@ case CALL_TCPIP_TELNET:
 		state.session = SESSION_UNKNOWN;
 		target = xstrcpy("ITN");
 		break;
-defalt:
+default:
 		log("invalid protocol for TCP/IP module");
 		return BFERR_FATALERROR;
 	}
@@ -536,7 +536,7 @@ defalt:
 	if ( ! resflg ) 
 	{
 		
-		char *p = string_casestr(pbuf, target);
+		const char *p = string_casestr(pbuf, target);
 		
 		if ( p ) 
 		{
diff --git a/source/bforce/sess_stat.c b/source/bforce/sess_stat.c
index d2c70ab..79d75d6 100644
--- a/source/bforce/sess_stat.c
+++ b/source/bforce/sess_stat.c
@@ -58,11 +58,11 @@ static char *session_stat_get_stsfile(s_faddr *addr, int linenum)
 					addr->zone, addr->net,
 					addr->node, addr->point);
 		else
-			sprintf(buf, "%u.%u.%u.%u-%u.sts",
+			sprintf(buf, "%u.%u.%u.%u-%d.sts",
 					addr->zone, addr->net,
 					addr->node, addr->point, linenum);
 		
-		yield = string_concat(p_stsdir, buf, NULL);
+		yield = string_concat(p_stsdir, buf, '\0');
 	}
 	
 	return yield;
diff --git a/source/bforce/u_file.c b/source/bforce/u_file.c
index 99ec3ec..c00c65d 100644
--- a/source/bforce/u_file.c
+++ b/source/bforce/u_file.c
@@ -109,6 +109,22 @@ int file_lock_wait(FILE *fp, bool exclusive)
 	return -1;
 }
 
+void getrandname(char * buf, u_int size)
+{
+	srand((unsigned int)time(NULL));
+	char c;
+	int i;
+	for (i = 0; i<size; i++)
+	{
+		c = rand();
+		// Only ASCII 0..9A..Z
+		while ( (c > 90) || (c < 48) || ( ( c > 57) && ( c < 65 ) ) ) 
+			c = rand();
+		buf[i] = c;
+	}
+	buf[size]='\0';
+}
+
 bool file_name_issafe(int ch)
 {
 	if( ch == '!' ) return TRUE;
@@ -151,12 +167,22 @@ char *file_getname(char *filename)
 
 char *file_gettmp(void)
 {
-	char *tmp = xstrcpy("/tmp/bforce-XXXXXX");
-	char *res = mktemp(tmp);
-
-	if( !res )
-		free(tmp);
-
+	char *chunk = xmalloc(7);
+	char *res = NULL;
+	if (chunk)
+	{
+		getrandname(chunk,6);
+		chunk[6] = '\0';
+		
+		char *tmp = xstrcpy("/tmp/bforce-");
+		
+		res = string_concat(tmp, chunk, '\0');
+	    
+	    if( chunk )
+			free(chunk);
+		if( !res )
+			free(tmp);
+	}
 	return res;
 }
 
diff --git a/source/bforce/u_plock.c b/source/bforce/u_plock.c
index bd3b77b..192185e 100644
--- a/source/bforce/u_plock.c
+++ b/source/bforce/u_plock.c
@@ -152,7 +152,13 @@ int plock_link(const char *lockname, const char *tmpname)
 int plock_create(const char *lockname)
 {
 	int rc;
-	char *tmpname, *p;
+	char *tmpname, *p, *chunk;
+	chunk = xmalloc(7);
+	if (!chunk) {
+		logerr("can't generate unique file name from \"%s\"", tmpname);
+		DEB((D_FREE, "plock freed"));
+		return PLOCK_ERROR;
+	}
 	
 	ASSERT(lockname != NULL);
 	
@@ -166,16 +172,10 @@ int plock_create(const char *lockname)
 		DEB((D_FREE, "plock freed"));
 		return PLOCK_ERROR;
 	}
-	tmpname = xstrcat(tmpname, "bforce-XXXXXX");
-
-	if( (p = mktemp(tmpname)) == NULL )
-	{
-		logerr("can't generate unique file name from \"%s\"", tmpname);
-		DEB((D_FREE, "plock free"));
-		free(tmpname);
-		DEB((D_FREE, "plock freed"));
-		return PLOCK_ERROR;
-	}
+	tmpname = xstrcat(tmpname, "bforce-");
+	
+	getrandname(chunk,6);
+	p = string_concat(tmpname,chunk,'\0');
 	
 	if( (rc = plock_write(p)) == PLOCK_OK )
 		rc = plock_link(lockname, p);
diff --git a/source/include/util.h b/source/include/util.h
index 2db486e..cdeefd6 100644
--- a/source/include/util.h
+++ b/source/include/util.h
@@ -46,10 +46,10 @@ enum day
 
 typedef struct faddr {
 	bool inetform;	/* Is address in domain form? */
-	int zone;		/* -1 value means any?! */
-	int net;
-	int node;
-	int point;
+	u_int zone;		/* -1 value means any?! */
+	u_int net;
+	u_int node;
+	u_int point;
 	char domain[BF_MAXDOMAIN+1];
 } s_faddr;
 
@@ -83,7 +83,7 @@ typedef struct message {
 typedef struct packet {
 	s_faddr orig;
 	s_faddr dest;
-	int     baud;
+	u_int     baud;
 	char    password[8+1];
 	s_message *msgs;
 	int     n_msgs;
@@ -161,6 +161,7 @@ bool  is_regfile(const char *filename);
 int   directory_create(const char *dirname, mode_t access_mode);
 FILE *file_open(const char *path, const char *mode);
 int   file_close(FILE *stream);
+void getrandname(char * buf, u_int size);
 
 /* u_ftn.c */
 int   ftn_addrparse(s_faddr *addr, const char *s, bool wildcard);
diff --git a/tests/configs/bforceA.conf b/tests/configs/bforceA.conf
index ae87de2..6d999bf 100644
--- a/tests/configs/bforceA.conf
+++ b/tests/configs/bforceA.conf
@@ -6,7 +6,7 @@ proto_order %PROTO%
 #domain schoolnet /var/spool/ftn/schoolnet/	461
 log_file %TESTZONE%/logsA/bf-log
 debug_file %TESTZONE%/logsA/bf-debug
-debug_level info modem hshake event prot override 
+debug_level info modem hshake event prot outbound override 
 nodial_flag %TESTZONE%/etc/nodial
 inbound_directory (Protected) %TESTZONE%/inboundA
 inbound_directory %TESTZONE%/inbound-unsecureA
diff --git a/tests/configs/bforceB.conf b/tests/configs/bforceB.conf
index 6f6adc0..b5aa643 100644
--- a/tests/configs/bforceB.conf
+++ b/tests/configs/bforceB.conf
@@ -6,7 +6,7 @@ proto_order %PROTO%
 #domain schoolnet /var/spool/ftn/schoolnet/	461
 log_file %TESTZONE%/logsB/bf-log
 debug_file %TESTZONE%/logsB/bf-debug
-debug_level info modem hshake event prot override
+debug_level info modem hshake event prot outbound override
 nodial_flag %TESTZONE%/etc/nodial
 inbound_directory (Protected) %TESTZONE%/inboundB
 inbound_directory %TESTZONE%/inbound-unsecureB