int *setting_value_row;
	int *setting_value;
	char *field_name;
	char *tmp_setting_name;
	int nFields;
	int i;
	int j;
	int compare;
	
	nFields = PQnfields(res);
	
	
	//find the setting name and the row associated to it
	for (i = 0; i < nFields; i++)
	{
		field_name = PQfname(res, i);
		compare = strcmp(field_name, "setting_name");
		if(compare == 0)
		{
			printf("\n\nFound Setting name: %s\n\n", field_name);
			compare = 1;
			for (j = 0; j < nFields; j++)
			{
				tmp_setting_name = PQgetvalue(res, j, i);
				printf("\ntmp_setting_name is: %s", tmp_setting_name);
				compare = strcmp(tmp_setting_name, settingname);
				printf("\n looking for next setting, current is: %s , looking for: %s, compare is: %i", tmp_setting_name, settingname, compare);
				if(compare == 0)
				{
					printf("Found setting: %s", settingname);
					compare = 0;
					// We found which row our setting value is, end the loop.
					fprintf("Setting name found: '%s'\n", tmp_setting_name);
					setting_value_row = j;
					j=nFields;
					i=nFields;
				}
			}
		}
	}



the output in gdb is:

Found Setting name: setting_name


tmp_setting_name is: monitor_desktop
 looking for next setting, current is: monitor_desktop , looking for: screenshot_interval, compare is: 1
tmp_setting_name is: storage_path
 looking for next setting, current is: storage_path , looking for: screenshot_interval, compare is: 1
tmp_setting_name is: screenshot_interval

Program received signal SIGSEGV, Segmentation fault.
0xb7dfed8e in cuserid () from /lib/libc.so.6