path: root/cpukit/libnetworking/lib/getprotoby.c

#include <netdb.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

static const struct protoent prototab[] = {
					{ "ip",    NULL, IPPROTO_IP },
					{ "icmp",  NULL, IPPROTO_ICMP },
					{ "tcp",   NULL, IPPROTO_TCP },
					{ "udp",   NULL, IPPROTO_UDP },
					};

/*
 * Dummy version of BSD getprotobyname()
 */
struct protoent *
getprotobyname (const char *name)
{
	int i;

	for (i = 0 ; i < (sizeof prototab / sizeof prototab[0]) ; i++) {
		if (strcmp (name, prototab[i].p_name) == 0)
			return &prototab[i];
	}
	return NULL;
}

/*
 * Dummy version of BSD getprotobynumber()
 */
struct protoent *
getprotobynumber (int proto)
{
	int i;

	for (i = 0 ; i < (sizeof prototab / sizeof prototab[0]) ; i++) {
		if (proto == prototab[i].p_proto)
			return &prototab[i];
	}
	return NULL;
}