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| author | Ulrich Drepper <drepper@redhat.com> | 2007-10-07 05:31:00 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-10-07 05:31:00 +0000 |
| commit | a6fa53288f51eac715cf9899ffe3cfd66e7dc42c (patch) | |
| tree | 5536782944443a3e3e580c9bcbf7c1e7295bb9ca /nscd | |
| parent | 506073094cda49a449c421c5b60f60616a6f898a (diff) | |
| download | glibc-a6fa53288f51eac715cf9899ffe3cfd66e7dc42c.tar.gz glibc-a6fa53288f51eac715cf9899ffe3cfd66e7dc42c.tar.xz glibc-a6fa53288f51eac715cf9899ffe3cfd66e7dc42c.zip | |
[BZ #3924]
* sysdeps/i386/dl-trampoline.S (_dl_runtime_profile): Fix a few more little bugs in creating the stack frame when pltexit has to be called.
Diffstat (limited to 'nscd')
| -rw-r--r-- | nscd/connections.c | 10 | ||||
| -rw-r--r-- | nscd/nscd_helper.c | 21 |
2 files changed, 25 insertions, 6 deletions
diff --git a/nscd/connections.c b/nscd/connections.c index 2572a42ee7..26d75d2978 100644 --- a/nscd/connections.c +++ b/nscd/connections.c @@ -378,8 +378,9 @@ verify_persistent_db (void *mem, struct database_pers_head *readhead, int dbnr) nscd_ssize_t he_cnt = 0; for (nscd_ssize_t cnt = 0; cnt < head->module; ++cnt) { - ref_t first = head->array[cnt]; - ref_t work = first; + ref_t trail = head->array[cnt]; + ref_t work = trail; + int tick = 0; while (work != ENDREF) { @@ -439,9 +440,12 @@ verify_persistent_db (void *mem, struct database_pers_head *readhead, int dbnr) work = here->next; - if (work == first) + if (work == trail) /* A circular list, this must not happen. */ goto fail; + if (tick) + trail = ((struct hashentry *) (data + trail))->next; + tick = 1 - tick; } } diff --git a/nscd/nscd_helper.c b/nscd/nscd_helper.c index 2e6d5f76b8..6718d922f3 100644 --- a/nscd/nscd_helper.c +++ b/nscd/nscd_helper.c @@ -416,8 +416,10 @@ __nscd_cache_search (request_type type, const char *key, size_t keylen, unsigned long int hash = __nis_hash (key, keylen) % mapped->head->module; size_t datasize = mapped->datasize; - ref_t first = mapped->head->array[hash]; - ref_t work = first; + ref_t trail = mapped->head->array[hash]; + ref_t work = trail; + int tick = 0; + while (work != ENDREF && work + sizeof (struct hashentry) <= datasize) { struct hashentry *here = (struct hashentry *) (mapped->data + work); @@ -457,8 +459,21 @@ __nscd_cache_search (request_type type, const char *key, size_t keylen, work = here->next; /* Prevent endless loops. This should never happen but perhaps the database got corrupted, accidentally or deliberately. */ - if (work == first) + if (work == trail) break; + if (tick) + { + struct hashentry *trailelem; + trailelem = (struct hashentry *) (mapped->data + trail); + +#ifndef _STRING_ARCH_unaligned + /* We have to redo the checks. Maybe the data changed. */ + if ((uintptr_t) trailelem & (__alignof__ (*trailelem) - 1)) + return NULL; +#endif + trail = trailelem->next; + } + tick = 1 - tick; } return NULL; |