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With the following httpd.conf:

Hostname = 192.168.9.1
WebsiteRoot = /var/www-docroot

Binding {
	Port = 80
}

FastCGIserver {
	FastCGIid = Test
}

there is a segfault when I start hiawatha:

 ./hiawatha -k -c etc/hiawatha/
Using etc/hiawatha/
Reading httpd.conf
do_page_fault() #2: sending SIGSEGV to hiawatha for invalid read access from
00000000 (epc == 00413178, ra == 004130ac)

any idea?

I've spotted the problem after recompiling with -g and having a look at objdump -S

The problem occurs in serverconfig.c around line 1584:

case fcgi_server:
	if ((config->fcgi_server->fcgi_id != NULL) && (config->fcgi_server->connect_to->port != 0)) {
		current_fcgi_server = NULL;
	} else {
		fprintf(stderr, "A FastCGIid and/or ConnectTo is missing in a FastCGIserver section in %s.\n", configfile);
		retval = -1;
	}
	break;

it crashes at the line which says:

if ((config->fcgi_server->fcgi_id != NULL) && (config->fcgi_server->connect_to->port != 0)) {

config->fcgi_server->connect_to

is a NULL pointer

Thanks for your feedback. It is indeed a bug in Hiawatha, although you also have an error in your configurationfile.

To fix the problem, change the lines

if ((config->fcgi_server->fcgi_id != NULL) && (config->fcgi_server->connect_to->port != 0)) {
  current_fcgi_server = NULL;
} else {
  fprintf(stderr, "A FastCGIid and/or ConnectTo is missing in a FastCGIserver section in %s.\n", configfile);
  retval = -1;
}

in serverconfig.c into

if ((config->fcgi_server->fcgi_id != NULL) && (config->fcgi_server->connect_to != NULL) && (config->fcgi_server->extension.size > 0)) {
  current_fcgi_server = NULL;
} else {
  fprintf(stderr, "A FastCGIid, Extension or ConnectTo is missing in a FastCGIserver section in %s.\n", configfile);
  retval = -1;
}

About your configurationfile: the FastCGIserver section is incomplete. You are missing the Extension and ConnectTo options.

Hostname = 192.168.9.1
WebsiteRoot = /var/www-docroot

Binding {
	Port = 80
}

FastCGIserver {
	FastCGIid = Test
        Extension = <file extension>
        ConnectTo = <ip-address>:<port>
}

Thanks for you quick reply!

Now the problem is that I have a single FastCGI daemon, which has no extension. I'd like to forward all the request matching a specific URI to this daemon.

Is there a way to do this with hiawatha? I'm able to do this with lighttpd and cherokee, but I'd like to use hiawatha as it is more lightweight.

I have spotted the problem. In libip.c line 181,

s_ip = remove_spaces(s_ip);

should be replaced by:

s_ip = remove_spaces(line);

otherwise s_ip is undefined in case HAVE_IPV6 is set to false.

Thanks for your bugreport. Keep up the good work with your audit