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| author | Ulrich Drepper <drepper@redhat.com> | 2010-11-22 11:11:24 -0500 |
|---|---|---|
| committer | Andreas Schwab <schwab@redhat.com> | 2010-12-01 15:35:20 +0100 |
| commit | d1d5508011bfbd594f4d1c61d20b0ab9fb1bdc1d (patch) | |
| tree | f324d85726dfccbeb68070839ac9791fc8260235 | |
| parent | 24990266ba20fcff9fe4f08646350fdece96f27a (diff) | |
| download | glibc-d1d5508011bfbd594f4d1c61d20b0ab9fb1bdc1d.zip glibc-d1d5508011bfbd594f4d1c61d20b0ab9fb1bdc1d.tar.gz glibc-d1d5508011bfbd594f4d1c61d20b0ab9fb1bdc1d.tar.bz2 | |
Fix multiple nss_compat initgroups() bugs
Compat initgroups() is completely broken; the code will always set
skip_initgroups_dyn to true, so initgroups() will never be actually
called, but due to the nature of the code, setgrent() won't be called
either - thus, subsequent invocations of initgroups() will not return
the NIS group list anymore.
This is a simple patch that makes sure skip_initgroups_dyn is set only
in case initgroups is not available; it also attempts to handle the
unavailability of other NSS interfaces better.
Conflicts:
ChangeLog
(cherry picked from commit 3056dcdb783a177158a5617657d1a33f872358d6)
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | nis/nss_compat/compat-initgroups.c | 19 |
2 files changed, 17 insertions, 8 deletions
@@ -1,3 +1,9 @@ +2010-05-31 Petr Baudis <pasky@suse.cz> + + [BZ #10085] + * nis/nss_compat/compat-initgroups.c (internal_getgrent_r): Fix + initialization of skip_initgroups_dyn. + 2010-09-27 Andreas Schwab <schwab@redhat.com> [BZ #11611] diff --git a/nis/nss_compat/compat-initgroups.c b/nis/nss_compat/compat-initgroups.c index 07a3b92..de8d95c 100644 --- a/nis/nss_compat/compat-initgroups.c +++ b/nis/nss_compat/compat-initgroups.c @@ -474,18 +474,21 @@ internal_getgrent_r (ent_t *ent, char *buffer, size_t buflen, const char *user, /* If the selected module does not support getgrent_r or initgroups_dyn, abort. We cannot find the needed group entries. */ - if (nss_getgrent_r == NULL && nss_initgroups_dyn == NULL) + if (nss_initgroups_dyn == NULL || nss_getgrgid_r == NULL) + { + if (nss_setgrent != NULL) + { + nss_setgrent (1); + ent->need_endgrent = true; + } + ent->skip_initgroups_dyn = true; + } + + if (ent->skip_initgroups_dyn && nss_getgrent_r == NULL) return NSS_STATUS_UNAVAIL; ent->files = false; - if (nss_initgroups_dyn == NULL && nss_setgrent != NULL) - { - nss_setgrent (1); - ent->need_endgrent = true; - } - ent->skip_initgroups_dyn = true; - return getgrent_next_nss (ent, buffer, buflen, user, group, start, size, groupsp, limit, errnop); } |