nvlist_t *
nvlist_recv(int sock, int flags)
{
struct nvlist_header nvlhdr;
nvlist_t *nvl, *ret;
unsigned char *buf;
size_t nfds, size, i;
int *fds;
if (buf_recv(sock, &nvlhdr, sizeof(nvlhdr)) == -1)
return (NULL);
if (!nvlist_check_header(&nvlhdr))
return (NULL);
nfds = (size_t)nvlhdr.nvlh_descriptors;
size = sizeof(nvlhdr) + (size_t)nvlhdr.nvlh_size;
buf = nv_malloc(size);
if (buf == NULL)
return (NULL);
memcpy(buf, &nvlhdr, sizeof(nvlhdr));
ret = NULL;
fds = NULL;
if (buf_recv(sock, buf + sizeof(nvlhdr), size - sizeof(nvlhdr)) == -1)
goto out;
if (nfds > 0) {
fds = nv_malloc(nfds * sizeof(fds[0]));
if (fds == NULL)
goto out;
if (fd_recv(sock, fds, nfds) == -1)
goto out;
}
nvl = nvlist_xunpack(buf, size, fds, nfds, flags);
if (nvl == NULL) {
ERRNO_SAVE();
for (i = 0; i < nfds; i++)
close(fds[i]);
ERRNO_RESTORE();
goto out;
}
ret = nvl;
out:
ERRNO_SAVE();
nv_free(buf);
nv_free(fds);
ERRNO_RESTORE();
return (ret);
}
void
nvlist_destroy(nvlist_t *nvl)
{
nvpair_t *nvp;
if (nvl == NULL)
return;
ERRNO_SAVE();
NVLIST_ASSERT(nvl);
while ((nvp = nvlist_first_nvpair(nvl)) != NULL) {
nvlist_remove_nvpair(nvl, nvp);
nvpair_free(nvp);
}
if (nvl->nvl_array_next != NULL)
nvpair_free_structure(nvl->nvl_array_next);
nvl->nvl_array_next = NULL;
nvl->nvl_parent = NULL;
nvl->nvl_magic = 0;
nv_free(nvl);
ERRNO_RESTORE();
}
int
nvlist_send(int sock, const nvlist_t *nvl)
{
size_t datasize, nfds;
int *fds;
void *data;
int64_t fdidx;
int ret;
if (nvlist_error(nvl) != 0) {
ERRNO_SET(nvlist_error(nvl));
return (-1);
}
fds = nvlist_descriptors(nvl, &nfds);
if (fds == NULL)
return (-1);
ret = -1;
data = NULL;
fdidx = 0;
data = nvlist_xpack(nvl, &fdidx, &datasize);
if (data == NULL)
goto out;
if (buf_send(sock, data, datasize) == -1)
goto out;
if (nfds > 0) {
if (fd_send(sock, fds, nfds) == -1)
goto out;
}
ret = 0;
out:
ERRNO_SAVE();
nv_free(fds);
nv_free(data);
ERRNO_RESTORE();
return (ret);
}
void
nvlist_destroy(nvlist_t *nvl)
{
nvpair_t *nvp;
if (nvl == NULL)
return;
ERRNO_SAVE();
NVLIST_ASSERT(nvl);
while ((nvp = nvlist_first_nvpair(nvl)) != NULL) {
nvlist_remove_nvpair(nvl, nvp);
nvpair_free(nvp);
}
nvl->nvl_magic = 0;
nv_free(nvl);
ERRNO_RESTORE();
}
