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author | Ulrich Drepper <drepper@redhat.com> | 2010-11-22 11:11:24 -0500 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2010-11-22 11:11:24 -0500 |
commit | 3056dcdb783a177158a5617657d1a33f872358d6 (patch) | |
tree | 5ecaf81b3305f617e74d6241b2c86a5b87cf96b5 /nis/nss_compat/compat-initgroups.c | |
parent | cf7c9078a5acdbb435498ace92cd81009637a971 (diff) | |
download | glibc-3056dcdb783a177158a5617657d1a33f872358d6.tar.gz glibc-3056dcdb783a177158a5617657d1a33f872358d6.tar.xz glibc-3056dcdb783a177158a5617657d1a33f872358d6.zip |
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
Diffstat (limited to 'nis/nss_compat/compat-initgroups.c')
-rw-r--r-- | nis/nss_compat/compat-initgroups.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/nis/nss_compat/compat-initgroups.c b/nis/nss_compat/compat-initgroups.c index 07a3b9282c..de8d95c7d1 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); } |