C++ (Cpp) __netent_data_init示例

示例#1

文件： getnetbyht.c 项目： MattDooner/freebsd-west

int
_ht_getnetbyname(void *rval, void *cb_data, va_list ap)
{
	const char *name;
	char *buffer;
	size_t buflen;
	int *errnop, *h_errnop;
	struct netent *nptr, ne;
	struct netent_data *ned;
	char **cp;
	res_state statp;
	int error;

	name = va_arg(ap, const char *);
	nptr = va_arg(ap, struct netent *);
	buffer = va_arg(ap, char *);
	buflen = va_arg(ap, size_t);
	errnop = va_arg(ap, int *);
	h_errnop = va_arg(ap, int *);

	statp = __res_state();
	if ((ned = __netent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_UNAVAIL);
	}

	_setnethtent(ned->stayopen, ned);
	while ((error = getnetent_p(&ne, ned)) == 0) {
		if (strcasecmp(ne.n_name, name) == 0)
			break;
		for (cp = ne.n_aliases; *cp != 0; cp++)
			if (strcasecmp(*cp, name) == 0)
				goto found;
	}
found:
	if (!ned->stayopen)
		_endnethtent(ned);
	if (error != 0) {
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}
	if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
		*errnop = errno;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_RETURN);
	}
	*((struct netent **)rval) = nptr;
	return (NS_SUCCESS);
}

示例#2

文件： getnetbyht.c 项目： MattDooner/freebsd-west

int
_ht_getnetbyaddr(void *rval, void *cb_data, va_list ap)
{
	uint32_t net;
	int type;
	char *buffer;
	size_t buflen;
	int *errnop, *h_errnop;
	struct netent *nptr, ne;
	struct netent_data *ned;
	res_state statp;
	int error;

	net = va_arg(ap, uint32_t);
	type = va_arg(ap, int);
	nptr = va_arg(ap, struct netent *);
	buffer = va_arg(ap, char *);
	buflen = va_arg(ap, size_t);
	errnop = va_arg(ap, int *);
	h_errnop = va_arg(ap, int *);

	statp = __res_state();
	if ((ned = __netent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_UNAVAIL);
	}

	_setnethtent(ned->stayopen, ned);
	while ((error = getnetent_p(&ne, ned)) == 0)
		if (ne.n_addrtype == type && ne.n_net == net)
			break;
	if (!ned->stayopen)
		_endnethtent(ned);
	if (error != 0) {
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}
	if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
		*errnop = errno;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_RETURN);
	}
	*((struct netent **)rval) = nptr;
	return (NS_SUCCESS);
}

示例#3

文件： getnetbynis.c 项目： edgar-pek/PerspicuOS

int
_nis_getnetbyname(void *rval, void *cb_data, va_list ap)
{
#ifdef YP
	const char *name;
	char *buffer;
	size_t buflen;
	int *errnop, *h_errnop;
	struct netent *nptr, ne;
	struct netent_data *ned;
	res_state statp;

	name = va_arg(ap, const char *);
	nptr = va_arg(ap, struct netent *);
	buffer = va_arg(ap, char *);
	buflen = va_arg(ap, size_t);
	errnop = va_arg(ap, int *);
	h_errnop = va_arg(ap, int *);

	statp = __res_state();
	if ((ned = __netent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_UNAVAIL);
	}

	if (_getnetbynis(name, "networks.byname", AF_INET, &ne, ned) != 0) {
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}
	if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
		*errnop = errno;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_RETURN);
	}
	*((struct netent **)rval) = nptr;
	return (NS_SUCCESS);
#else
	return (NS_UNAVAIL);
#endif

}

示例#4

文件： getnetbyht.c 项目： alexandermerritt/dragonfly

int
getnetent_r(struct netent *nptr, char *buffer, size_t buflen,
	    struct netent **result, int *h_errnop)
{
	struct netent_data *ned;
	struct netent ne;
	res_state statp;

	statp = __res_state();
	if ((ned = __netent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (-1);
	}
	if (getnetent_p(&ne, ned) != 0)
		return (-1);
	if (__copy_netent(&ne, nptr, buffer, buflen) != 0)
		return (-1);
	*result = nptr;
	return (0);
}

示例#5

文件： getnetbynis.c 项目： edgar-pek/PerspicuOS

int
_nis_getnetbyaddr(void *rval, void *cb_data, va_list ap)
{
#ifdef YP
	uint32_t addr;
	int af;
	char *buffer;
	size_t buflen;
	int *errnop, *h_errnop;
	struct netent *nptr, ne;
	struct netent_data *ned;
	char *str, *cp;
	uint32_t net2;
	int nn;
	unsigned int netbr[4];
	char buf[MAXDNAME];
	res_state statp;

	addr = va_arg(ap, uint32_t);
	af = va_arg(ap, int);
	nptr = va_arg(ap, struct netent *);
	buffer = va_arg(ap, char *);
	buflen = va_arg(ap, size_t);
	errnop = va_arg(ap, int *);
	h_errnop = va_arg(ap, int *);

	statp = __res_state();
	if ((ned = __netent_data_init()) == NULL) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_UNAVAIL);
	}

	if (af != AF_INET) {
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		errno = EAFNOSUPPORT;
		return (NS_UNAVAIL);
	}

        for (nn = 4, net2 = addr; net2; net2 >>= 8) {
                netbr[--nn] = net2 & 0xff;
	}

	switch (nn) {
	case 3:		/* Class A */
		sprintf(buf, "%u", netbr[3]);
		break;
        case 2:		/* Class B */
		sprintf(buf, "%u.%u", netbr[2], netbr[3]);
		break;
        case 1:		/* Class C */
		sprintf(buf, "%u.%u.%u", netbr[1], netbr[2], netbr[3]);
                break;
        case 0:		/* Class D - E */
		sprintf(buf, "%u.%u.%u.%u", netbr[0], netbr[1],
			netbr[2], netbr[3]);
		break;
	}

	str = (char *)&buf;
	cp = str + (strlen(str) - 2);

	while(!strcmp(cp, ".0")) {
		*cp = '\0';
		cp = str + (strlen(str) - 2);
	}

	if (_getnetbynis(str, "networks.byaddr", af, &ne, ned) != 0) {
		*h_errnop = statp->res_h_errno;
		return (NS_NOTFOUND);
	}
	if (__copy_netent(&ne, nptr, buffer, buflen) != 0) {
		*errnop = errno;
		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
		*h_errnop = statp->res_h_errno;
		return (NS_RETURN);
	}
	*((struct netent **)rval) = nptr;
	return (NS_SUCCESS);
#else
	return (NS_UNAVAIL);
#endif /* YP */
}