fixed compiler warnings issued by:

gcc 4.3
	curl.h gcc type-checking
	glibc with enabled FORTIFY_SOURCE checking

src/charon/daemon.c

@@ -719,7 +719,7 @@ int main(int argc, char *argv[])
 	if (pid_file)
 	{
 		fprintf(pid_file, "%d\n", getpid());
-		fchown(fileno(pid_file), charon->uid, charon->gid);
+		ignore_result(fchown(fileno(pid_file), charon->uid, charon->gid));
 		fclose(pid_file);
 	}
 	

src/charon/plugins/sql/sql_attribute.c

@@ -17,6 +17,8 @@
 
 #include "sql_attribute.h"
 
+#include <time.h>
+
 #include <daemon.h>
 
 typedef struct private_sql_attribute_t private_sql_attribute_t;

src/charon/plugins/updown/updown_plugin.c

@@ -72,7 +72,10 @@ static void updown(ike_sa_t *ike_sa, child_sa_t *child_sa, bool up)
 		FILE *shell;
 
 		/* get subnet/bits from string */
-		asprintf(&my_client, "%R", my_ts);
+		if (asprintf(&my_client, "%R", my_ts) < 0)
+		{
+			my_client = NULL;
+		}
 		pos = strchr(my_client, '/');
 		*pos = '\0';
 		my_client_mask = pos + 1;
@@ -81,7 +84,10 @@ static void updown(ike_sa_t *ike_sa, child_sa_t *child_sa, bool up)
 		{
 			*pos = '\0';
 		}
-		asprintf(&other_client, "%R", other_ts);
+		if (asprintf(&other_client, "%R", other_ts) < 0)
+		{
+			other_client = NULL;
+		}
 		pos = strchr(other_client, '/');
 		*pos = '\0';
 		other_client_mask = pos + 1;
@@ -93,11 +99,17 @@ static void updown(ike_sa_t *ike_sa, child_sa_t *child_sa, bool up)
 
 		if (vip)
 		{
-			asprintf(&virtual_ip, "PLUTO_MY_SOURCEIP='%H' ", vip);
+			if (asprintf(&virtual_ip, "PLUTO_MY_SOURCEIP='%H' ", vip) < 0)
+			{
+				virtual_ip = NULL;
+			}
 		}
 		else
 		{
-			asprintf(&virtual_ip, "");
+			if (asprintf(&virtual_ip, "") < 0)
+			{
+				virtual_ip = NULL;
+			}
 		}
 		
 		iface = charon->kernel_interface->get_interface(

src/charon/sa/ike_sa.c

@@ -2176,7 +2176,7 @@ static void remove_dns_servers(private_ike_sa_t *this)
 		if (!found)
 		{	
 			/* write line untouched back to file */
-			fwrite(orig_line.ptr, orig_line.len, 1, file);
+			ignore_result(fwrite(orig_line.ptr, orig_line.len, 1, file));
 			fprintf(file, "\n");
 		}
 	}
@@ -2230,7 +2230,7 @@ static void add_dns_server(private_ike_sa_t *this, host_t *dns)
 	{
 		this->dns_servers->insert_last(this->dns_servers, dns->clone(dns));
 	}
-	fwrite(contents.ptr, contents.len, 1, file);
+	ignore_result(fwrite(contents.ptr, contents.len, 1, file));
 	
 	fclose(file);	
 }