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//==========================================================================
//
// lib/getproto.c
//
// getprotobyname(), getprotobynumber()
//
//==========================================================================
// ####BSDALTCOPYRIGHTBEGIN####
// -------------------------------------------
// Portions of this software may have been derived from FreeBSD, OpenBSD,
// or other sources, and if so are covered by the appropriate copyright
// and license included herein.
// -------------------------------------------
// ####BSDALTCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): gthomas
// Contributors: gthomas, andrew.lunn@ascom.ch
// Date: 2000-01-10
// Purpose:
// Description:
//
//
//####DESCRIPTIONEND####
//
//==========================================================================
#include <sys/param.h>
#include <netdb.h>
#include <errno.h>
static struct protoent protocols[] = {
{ "ip", 0}, // internet protocol, pseudo protocol number
{ "icmp", 1}, // internet control message protocol
{ "igmp", 2}, // Internet Group Management
{ "ggp", 3}, // gateway-gateway protocol
{ "ipencap", 4}, // IP encapsulated in IP (officially ``IP'')
{ "st", 5}, // ST datagram mode
{ "tcp", 6}, // transmission control protocol
{ "egp", 8}, // exterior gateway protocol
{ "pup", 12}, // PARC universal packet protocol
{ "udp", 17}, // user datagram protocol
{ "hmp", 20}, // host monitoring protocol
{ "xns-idp", 22}, // Xerox NS IDP
{ "rdp", 27}, // "reliable datagram" protocol
{ "iso-tp4", 29}, // ISO Transport Protocol class 4
{ "xtp", 36}, // Xpress Tranfer Protocol
{ "ddp", 37}, // Datagram Delivery Protocol
{ "idpr-cmtp", 39}, // IDPR Control Message Transport
{ "ipv6-icmp", 58}, // ICMP for IPv6
{ "rspf", 73}, // Radio Shortest Path First.
{ "vmtp", 81}, // Versatile Message Transport
{ "ospf", 89}, // Open Shortest Path First IGP
{ "ipip", 94}, // Yet Another IP encapsulation
{ "encap", 98}, // Yet Another IP encapsulation
{ 0, 0}
};
struct protoent *
getprotobyname(const char *name)
{
struct protoent *p = protocols;
while (p->p_name) {
if (strcmp(name, p->p_name) == 0) {
return p;
}
p++;
}
errno = ENOENT;
return (struct protoent *)0;
}
struct protoent *
getprotobynumber(const int num)
{
struct protoent *p = protocols;
while (p->p_name) {
if (p->p_proto == num) {
return p;
}
p++;
}
errno = ENOENT;
return (struct protoent *)0;
}
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