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Handle empty nvlists correctly.

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Submitted by:	Mariusz Zaborski <oshogbo@FreeBSD.org>
This commit is contained in:
Pawel Jakub Dawidek 2015-01-30 12:31:29 +00:00
parent 1c9b585695
commit c06165279d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=277925
1 changed files with 35 additions and 16 deletions
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51
lib/libnv/nvlist.c
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@ -356,7 +356,8 @@ nvlist_dump_error_check(const nvlist_t *nvl, int fd, int level)
void
nvlist_dump(const nvlist_t *nvl, int fd)
{
nvpair_t *nvp;
const nvlist_t *tmpnvl;
nvpair_t *nvp, *tmpnvp;
int level;
level = 0;
@ -386,13 +387,17 @@ nvlist_dump(const nvlist_t *nvl, int fd)
break;
case NV_TYPE_NVLIST:
dprintf(fd, "\n");
nvl = nvpair_get_nvlist(nvp);
if (nvlist_dump_error_check(nvl, fd, level + 1)) {
nvl = nvlist_get_parent(nvl, (void **)&nvp);
tmpnvl = nvpair_get_nvlist(nvp);
if (nvlist_dump_error_check(tmpnvl, fd, level + 1))
break;
tmpnvp = nvlist_first_nvpair(tmpnvl);
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
level++;
continue;
}
level++;
continue;
break;
case NV_TYPE_DESCRIPTOR:
dprintf(fd, " %d\n", nvpair_get_descriptor(nvp));
break;
@ -436,7 +441,8 @@ nvlist_fdump(const nvlist_t *nvl, FILE *fp)
size_t
nvlist_size(const nvlist_t *nvl)
{
const nvpair_t *nvp;
const nvlist_t *tmpnvl;
const nvpair_t *nvp, *tmpnvp;
size_t size;
NVLIST_ASSERT(nvl);
@ -450,10 +456,14 @@ nvlist_size(const nvlist_t *nvl)
if (nvpair_type(nvp) == NV_TYPE_NVLIST) {
size += sizeof(struct nvlist_header);
size += nvpair_header_size() + 1;
nvl = nvpair_get_nvlist(nvp);
PJDLOG_ASSERT(nvl->nvl_error == 0);
nvp = nvlist_first_nvpair(nvl);
continue;
tmpnvl = nvpair_get_nvlist(nvp);
PJDLOG_ASSERT(tmpnvl->nvl_error == 0);
tmpnvp = nvlist_first_nvpair(tmpnvl);
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
continue;
}
} else {
size += nvpair_size(nvp);
}
@ -575,7 +585,8 @@ nvlist_xpack(const nvlist_t *nvl, int64_t *fdidxp, size_t *sizep)
{
unsigned char *buf, *ptr;
size_t left, size;
nvpair_t *nvp;
const nvlist_t *tmpnvl;
nvpair_t *nvp, *tmpnvp;
NVLIST_ASSERT(nvl);
@ -618,10 +629,18 @@ nvlist_xpack(const nvlist_t *nvl, int64_t *fdidxp, size_t *sizep)
ptr = nvpair_pack_string(nvp, ptr, &left);
break;
case NV_TYPE_NVLIST:
nvl = nvpair_get_nvlist(nvp);
nvp = nvlist_first_nvpair(nvl);
ptr = nvlist_pack_header(nvl, ptr, &left);
continue;
tmpnvl = nvpair_get_nvlist(nvp);
ptr = nvlist_pack_header(tmpnvl, ptr, &left);
if (ptr == NULL)
goto out;
tmpnvp = nvlist_first_nvpair(tmpnvl);
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
continue;
}
ptr = nvpair_pack_nvlist_up(ptr, &left);
break;
case NV_TYPE_DESCRIPTOR:
ptr = nvpair_pack_descriptor(nvp, ptr, fdidxp, &left);
break;