aboutsummaryrefslogtreecommitdiff
path: root/nis/nss_nis
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1998-06-19 13:01:35 +0000
committerUlrich Drepper <drepper@redhat.com>1998-06-19 13:01:35 +0000
commit899d423eaf3f66e59ffffefe40b2ba2137bd0050 (patch)
tree47028b40d388f051f651e752877c8b73cf826929 /nis/nss_nis
parent977bfd77e6cd739c82491fa9fe4b54b269ea349d (diff)
downloadglibc-899d423eaf3f66e59ffffefe40b2ba2137bd0050.tar
glibc-899d423eaf3f66e59ffffefe40b2ba2137bd0050.tar.gz
glibc-899d423eaf3f66e59ffffefe40b2ba2137bd0050.tar.bz2
glibc-899d423eaf3f66e59ffffefe40b2ba2137bd0050.zip
Update.
1998-06-10 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/Makefile: Add nis-initgroups and compat-initgroups. * nis/libnss_compat.map: Add _nss_compat_initgroups. * nis/libnss_nis.map: Add _nss_nis_initgroups. * nis/nss_compat/compat-initgroups.c: New, faster then getgrent(). * nis/nss_nis/nis-initgroups.c: Likewise. * libc-work/nss/nsswitch.c: Rename nss_lookup_function to __nss_lookup_function and make it public. * grp/initgroups.c: Rewrite, to use initgroups function from NSS module if exists, else use old method. 1998-06-19 Ulrich Drepper <drepper@cygnus.com> * nss/getXXbyYY_r.c (lookup_function): Correct return in type definition. * nss/getXXent_r.c (set_function, end_function, get_function): Likewise. Reported by Thorsten Kukuk. * sysdeps/unix/sysv/linux/sigstack.c: Mark sigstack as dangerous. 1998-06-19 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/sparc/Dist: Follow change from 1998-06-16 and distribute kernel_termios.h. * nis/Makefile (distribute): Add nis_xdr.h. 1998-06-19 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/sigstack.c (sigstack): Disable for kernels that don't have sigaltstack.
Diffstat (limited to 'nis/nss_nis')
-rw-r--r--nis/nss_nis/nis-initgroups.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/nis/nss_nis/nis-initgroups.c b/nis/nss_nis/nis-initgroups.c
new file mode 100644
index 0000000000..5960c80502
--- /dev/null
+++ b/nis/nss_nis/nis-initgroups.c
@@ -0,0 +1,204 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <nss.h>
+#include <grp.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function. */
+#define ENTNAME grent
+#define STRUCTURE group
+#define EXTERN_PARSER
+#include <nss/nss_files/files-parse.c>
+
+struct response_t
+{
+ char *val;
+ struct response_t *next;
+};
+
+struct intern_t
+{
+ struct response_t *start;
+ struct response_t *next;
+};
+typedef struct intern_t intern_t;
+
+static int
+saveit (int instatus, char *inkey, int inkeylen, char *inval,
+ int invallen, char *indata)
+{
+ intern_t *intern = (intern_t *) indata;
+
+ if (instatus != YP_TRUE)
+ return instatus;
+
+ if (inkey && inkeylen > 0 && inval && invallen > 0)
+ {
+ if (intern->start == NULL)
+ {
+ intern->start = malloc (sizeof (struct response_t));
+ intern->next = intern->start;
+ }
+ else
+ {
+ intern->next->next = malloc (sizeof (struct response_t));
+ intern->next = intern->next->next;
+ }
+ intern->next->next = NULL;
+ intern->next->val = malloc (invallen + 1);
+ strncpy (intern->next->val, inval, invallen);
+ intern->next->val[invallen] = '\0';
+ }
+
+ return 0;
+}
+
+static enum nss_status
+internal_setgrent (intern_t *intern)
+{
+ char *domainname;
+ struct ypall_callback ypcb;
+ enum nss_status status;
+
+ if (yp_get_default_domain (&domainname))
+ return NSS_STATUS_UNAVAIL;
+
+ intern->start = NULL;
+
+ ypcb.foreach = saveit;
+ ypcb.data = (char *) intern;
+ status = yperr2nss (yp_all (domainname, "group.byname", &ypcb));
+ intern->next = intern->start;
+
+ return status;
+}
+
+static enum nss_status
+internal_getgrent_r (struct group *grp, char *buffer, size_t buflen,
+ int *errnop, intern_t *intern)
+{
+ struct parser_data *data = (void *) buffer;
+ int parse_res;
+ char *p;
+
+ if (intern->start == NULL)
+ internal_setgrent (intern);
+
+ /* Get the next entry until we found a correct one. */
+ do
+ {
+ if (intern->next == NULL)
+ return NSS_STATUS_NOTFOUND;
+ p = strncpy (buffer, intern->next->val, buflen);
+ while (isspace (*p))
+ ++p;
+
+ parse_res = _nss_files_parse_grent (p, grp, data, buflen, errnop);
+ if (parse_res == -1)
+ return NSS_STATUS_TRYAGAIN;
+ intern->next = intern->next->next;
+ }
+ while (!parse_res);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_initgroups (const char *user, gid_t group, long int *start,
+ long int *size, gid_t *groups, long int limit,
+ int *errnop)
+{
+ struct group grpbuf, *g;
+ size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX);
+ char *tmpbuf;
+ enum nss_status status;
+ intern_t intern = { NULL, NULL };
+
+ status = internal_setgrent (&intern);
+ if (status != NSS_STATUS_SUCCESS)
+ return status;
+
+ tmpbuf = __alloca (buflen);
+
+ do
+ {
+ while ((status =
+ internal_getgrent_r (&grpbuf, tmpbuf, buflen, errnop,
+ &intern)) == NSS_STATUS_TRYAGAIN
+ && *errnop == ERANGE)
+ {
+ buflen *= 2;
+ tmpbuf = __alloca (buflen);
+ }
+
+ if (status != NSS_STATUS_SUCCESS)
+ goto done;
+
+
+ g = &grpbuf;
+ if (g->gr_gid != group)
+ {
+ char **m;
+
+ for (m = g->gr_mem; *m != NULL; ++m)
+ if (strcmp (*m, user) == 0)
+ {
+ /* Matches user. Insert this group. */
+ if (*start == *size && limit <= 0)
+ {
+ /* Need a bigger buffer. */
+ groups = realloc (groups, *size * sizeof (*groups));
+ if (groups == NULL)
+ goto done;
+ *size *= 2;
+ }
+
+ groups[*start] = g->gr_gid;
+ *start += 1;
+
+ if (*start == limit)
+ /* Can't take any more groups; stop searching. */
+ goto done;
+
+ break;
+ }
+ }
+ }
+ while (status == NSS_STATUS_SUCCESS);
+
+done:
+ while (intern.start != NULL)
+ {
+ if (intern.start->val != NULL)
+ free (intern.start->val);
+ intern.next = intern.start;
+ intern.start = intern.start->next;
+ free (intern.next);
+ }
+
+ return NSS_STATUS_SUCCESS;
+}