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();
}
void *
cnvlist_take_binary(nvlist_t *nvl, void *cookiep, size_t *sizep)
{
void *value;
if (nvpair_type(cookiep) != NV_TYPE_BINARY)
nvlist_report_missing(NV_TYPE_BINARY, nvpair_name(cookiep));
value = (void *)(intptr_t)nvpair_get_binary(cookiep, sizep);
nvlist_remove_nvpair(nvl, cookiep);
nvpair_free_structure(cookiep);
return (value);
}
void *
nvlist_take_binary(nvlist_t *nvl, const char *name, size_t *sizep)
{
nvpair_t *nvp;
void *value;
nvp = nvlist_find(nvl, NV_TYPE_BINARY, name);
if (nvp == NULL)
nvlist_report_missing(NV_TYPE_BINARY, name);
value = (void *)(intptr_t)nvpair_get_binary(nvp, sizep);
nvlist_remove_nvpair(nvl, nvp);
nvpair_free_structure(nvp);
return (value);
}
void *
nvlist_takev_binary(nvlist_t *nvl, size_t *sizep, const char *namefmt,
va_list nameap)
{
va_list cnameap;
nvpair_t *nvp;
void *value;
va_copy(cnameap, nameap);
nvp = nvlist_findv(nvl, NV_TYPE_BINARY, namefmt, cnameap);
va_end(cnameap);
if (nvp == NULL)
nvlist_report_missing(NV_TYPE_BINARY, namefmt, nameap);
value = (void *)(intptr_t)nvpair_get_binary(nvp, sizep);
nvlist_remove_nvpair(nvl, nvp);
nvpair_free_structure(nvp);
return (value);
}
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);
}
