C++ (Cpp) nvlist_unpack_header Exemples

Exemple #1

Fichier : nvlist.c Projet : BillTheBest/libuinet

nvlist_t *
nvlist_xunpack(const void *buf, size_t size, const int *fds, size_t nfds)
{
	const unsigned char *ptr;
	nvlist_t *nvl;
	nvpair_t *nvp;
	size_t left;
	int flags;

	left = size;
	ptr = buf;

	nvl = nvlist_create(0);
	if (nvl == NULL)
		goto failed;

	ptr = nvlist_unpack_header(nvl, ptr, nfds, &flags, &left);
	if (ptr == NULL)
		goto failed;

	while (left > 0) {
		ptr = nvpair_unpack(flags, ptr, &left, fds, nfds, &nvp);
		if (ptr == NULL)
			goto failed;
		nvlist_move_nvpair(nvl, nvp);
	}

	return (nvl);
failed:
	nvlist_destroy(nvl);
	return (NULL);
}

Exemple #2

Fichier : subr_nvlist.c Projet : fengsi/freebsd

static nvlist_t *
nvlist_xunpack(const void *buf, size_t size, const int *fds, size_t nfds,
    int flags)
{
	const unsigned char *ptr;
	nvlist_t *nvl, *retnvl, *tmpnvl;
	nvpair_t *nvp;
	size_t left;
	bool isbe;

	PJDLOG_ASSERT((flags & ~(NV_FLAG_PUBLIC_MASK)) == 0);

	left = size;
	ptr = buf;

	tmpnvl = NULL;
	nvl = retnvl = nvlist_create(0);
	if (nvl == NULL)
		goto failed;

	ptr = nvlist_unpack_header(nvl, ptr, nfds, &isbe, &left);
	if (ptr == NULL)
		goto failed;
	if (nvl->nvl_flags != flags) {
		ERRNO_SET(EILSEQ);
		goto failed;
	}

	while (left > 0) {
		ptr = nvpair_unpack(isbe, ptr, &left, &nvp);
		if (ptr == NULL)
			goto failed;
		switch (nvpair_type(nvp)) {
		case NV_TYPE_NULL:
			ptr = nvpair_unpack_null(isbe, nvp, ptr, &left);
			break;
		case NV_TYPE_BOOL:
			ptr = nvpair_unpack_bool(isbe, nvp, ptr, &left);
			break;
		case NV_TYPE_NUMBER:
			ptr = nvpair_unpack_number(isbe, nvp, ptr, &left);
			break;
		case NV_TYPE_STRING:
			ptr = nvpair_unpack_string(isbe, nvp, ptr, &left);
			break;
		case NV_TYPE_NVLIST:
			ptr = nvpair_unpack_nvlist(isbe, nvp, ptr, &left, nfds,
			    &tmpnvl);
			nvlist_set_parent(tmpnvl, nvp);
			break;
#ifndef _KERNEL
		case NV_TYPE_DESCRIPTOR:
			ptr = nvpair_unpack_descriptor(isbe, nvp, ptr, &left,
			    fds, nfds);
			break;
#endif
		case NV_TYPE_BINARY:
			ptr = nvpair_unpack_binary(isbe, nvp, ptr, &left);
			break;
		case NV_TYPE_NVLIST_UP:
			if (nvl->nvl_parent == NULL)
				goto failed;
			nvl = nvpair_nvlist(nvl->nvl_parent);
			nvpair_free_structure(nvp);
			continue;
		default:
			PJDLOG_ABORT("Invalid type (%d).", nvpair_type(nvp));
		}
		if (ptr == NULL)
			goto failed;
		nvlist_move_nvpair(nvl, nvp);
		if (tmpnvl != NULL) {
			nvl = tmpnvl;
			tmpnvl = NULL;
		}
	}

	return (retnvl);
failed:
	nvlist_destroy(retnvl);
	return (NULL);
}