tcp-ip-sockets-in-c/common/Practical.c

#include <netdb.h>
#include <stddef.h>

#include "Practical.h"

int proto_get_num(const char *name) {
    struct protoent *protoent = getprotobyname(name);
    if (protoent == NULL) {
        DieWithSystemMessage("getprotobyname");
    }
    return protoent->p_proto;
}