#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include "lookup.h"
#include "stdio_impl.h"

int __lookup_serv(struct service buf[static MAXSERVS], const char *name, int proto, int socktype, int flags)
{
	char line[128];
	int cnt = 0;
	char *p, *z = "";
	unsigned long port = 0;

	switch (socktype) {
	case SOCK_STREAM:
		switch (proto) {
		case 0:
			proto = IPPROTO_TCP;
		case IPPROTO_TCP:
			break;
		default:
			return EAI_SERVICE;
		}
		break;
	case SOCK_DGRAM:
		switch (proto) {
		case 0:
			proto = IPPROTO_UDP;
		case IPPROTO_UDP:
			break;
		default:
			return EAI_SERVICE;
		}
	case 0:
		break;
	default:
		if (name) return EAI_SERVICE;
		buf[0].port = 0;
		buf[0].proto = proto;
		buf[0].socktype = socktype;
		return 1;
	}

	if (name) {
		if (!*name) return EAI_SERVICE;
		port = strtoul(name, &z, 10);
	}
	if (!*z) {
		if (port > 65535) return EAI_SERVICE;
		if (proto != IPPROTO_UDP) {
			buf[cnt].port = port;
			buf[cnt].socktype = SOCK_STREAM;
			buf[cnt++].proto = IPPROTO_TCP;
		}
		if (proto != IPPROTO_TCP) {
			buf[cnt].port = port;
			buf[cnt].socktype = SOCK_DGRAM;
			buf[cnt++].proto = IPPROTO_UDP;
		}
		return cnt;
	}

	if (flags & AI_NUMERICSERV) return EAI_NONAME;

	size_t l = strlen(name);

	abort(); //TODO-
	// unsigned char _buf[1032];
	// FILE _f, *f = __fopen_rb_ca("/etc/services", &_f, _buf, sizeof _buf);
	// if (!f) switch (errno) {
	// case ENOENT:
	// case ENOTDIR:
	// case EACCES:
	// 	return EAI_SERVICE;
	// default:
	// 	return EAI_SYSTEM;
	// }

	abort(); //TODO-
	// while (fgets(line, sizeof line, f) && cnt < MAXSERVS) {
	// 	if ((p=strchr(line, '#'))) *p++='\n', *p=0;

	// 	/* Find service name */
	// 	for(p=line; (p=strstr(p, name)); p++) {
	// 		if (p>line && !isspace(p[-1])) continue;
	// 		if (p[l] && !isspace(p[l])) continue;
	// 		break;
	// 	}
	// 	if (!p) continue;

	// 	/* Skip past canonical name at beginning of line */
	// 	for (p=line; *p && !isspace(*p); p++);

	// 	port = strtoul(p, &z, 10);
	// 	if (port > 65535 || z==p) continue;
	// 	if (!strncmp(z, "/udp", 4)) {
	// 		if (proto == IPPROTO_TCP) continue;
	// 		buf[cnt].port = port;
	// 		buf[cnt].socktype = SOCK_DGRAM;
	// 		buf[cnt++].proto = IPPROTO_UDP;
	// 	}
	// 	if (!strncmp(z, "/tcp", 4)) {
	// 		if (proto == IPPROTO_UDP) continue;
	// 		buf[cnt].port = port;
	// 		buf[cnt].socktype = SOCK_STREAM;
	// 		buf[cnt++].proto = IPPROTO_TCP;
	// 	}
	// }
	// __fclose_ca(f);
	// return cnt > 0 ? cnt : EAI_SERVICE;
	abort(); //TODO-
}