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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [net/] [tcpip/] [v2_0/] [doc/] [getproto.html] - Rev 592
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<html> <body> <pre> NAME getprotobyname, getprotobynumber - get protocol entry SYNOPSIS #include <network.h> struct protoent *getprotobyname(const char *name); struct protoent *getprotobynumber(int proto); DESCRIPTION The getprotobyname() function returns a protoent structure for the line from /etc/protocols that matches the protocol name name. The getprotobynumber() function returns a protoent struc ture for the line that matches the protocol number number. The protoent structure is defined in <netdb.h> as follows: struct protoent { char *p_name; /* official protocol name */ char **p_aliases; /* alias list */ int p_proto; /* protocol number */ } The members of the protoent structure are: p_name The official name of the protocol. p_aliases A zero terminated list of alternative names for the protocol. p_proto The protocol number. RETURN VALUE The getprotobyname() and getprotobynumber() functions return the protoent structure, or a NULL pointer if an error occurs. </pre> </body> </html>
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