d71b808a96
1997-12-08 03:24 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define $(rt) to rt if linuxthreads is available. * Makefile (subdirs): Replace rt by $(rt). * shlib-versions: Use version .2 for NSS modules. * grp/fgetgrent_r.c (LINE_PARSER): Call parse_line with extra argument. * pwd/fgetpwent_r.c: Likewise. * spwd/fgetspent_r.c: Likewise. * spwd/sgetspent_r.c: Likewise. * hesiod/nss_hesiod/hesiod-grp.c (lookup): Add new argument. Store error number in *ERRNOP. Little optimization. * hesiod/nss_hesiod/hesiod-pwd.c: Likewise. * hesiod/nss_hesiod/hesiod-service.c: Likewise. * inet/getnetgrent_r.c (__internal_setnetgrent_reuse): Likewise. (__internal_getnetgrent_r): New argument. Call __internal_setnetgrent_reuse with new argument. (__getnetgrent_r): Call __internal_getnetgrent_r with new argument. * inet/netgroup.h: Add argument to prototypes. * nis/nisplus-parser.h: Likewise. * nis/nss_compat/compat-grp.c: Change everything to store error code through provided pointer and not use errno. * nis/nss_compat/compat-pwd.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise. * nis/nss_nis/nis-alias.c: Likewise. * nis/nss_nis/nis-ethers.c: Likewise. * nis/nss_nis/nis-grp.c: Likewise. * nis/nss_nis/nis-hosts.c: Likewise. * nis/nss_nis/nis-netgrp.c: Likewise. * nis/nss_nis/nis-network.c: Likewise. * nis/nss_nis/nis-proto.c: Likewise. * nis/nss_nis/nis-publickey.c: Likewise. * nis/nss_nis/nis-pwd.c: Likewise. * nis/nss_nis/nis-rpc.c: Likewise. * nis/nss_nis/nis-service.c: Likewise. * nis/nss_nis/nis-spwd.c: Likewise. * nis/nss_nisplus/nisplus-alias.c: Likewise. * nis/nss_nisplus/nisplus-ethers.c: Likewise. * nis/nss_nisplus/nisplus-grp.c: Likewise. * nis/nss_nisplus/nisplus-hosts.c: Likewise. * nis/nss_nisplus/nisplus-netgrp.c: Likewise. * nis/nss_nisplus/nisplus-network.c: Likewise. * nis/nss_nisplus/nisplus-parser.c: Likewise. * nis/nss_nisplus/nisplus-proto.c: Likewise. * nis/nss_nisplus/nisplus-publickey.c: Likewise. * nis/nss_nisplus/nisplus-pwd.c: Likewise. * nis/nss_nisplus/nisplus-rpc.c: Likewise. * nis/nss_nisplus/nisplus-service.c: Likewise. * nis/nss_nisplus/nisplus-spwd.c: Likewise. * nss/nss_db/db-XXX.c: Likewise. * nss/nss_db/db-alias.c: Likewise. * nss/nss_db/db-netgrp.c: Likewise. * nss/nss_files/files-XXX.c: Likewise * nss/nss_files/files-alias.c: Likewise * nss/nss_files/files-netgrp.c: Likewise * nss/nss_files/files-parse.c: Likewise * nss/getXXbyYY_r.c: Call with __errno_location() as value for new parameter of get functions. * nss/getXXent_r.c: Likewise. * localedata/tst-fmon.c: Print debug info if test fails. * rt/Makefile (routines): Add aio_notify. * rt/aio.h: Remove non-public definitions. Add aioinit stuff. * rt/aio_cancel.c: Rewrite to support lio_listio and aio_suspend. * rt/aio_fsync.c: Likewise. * rt/aio_misc.c: Likewise. * rt/aio_misc.h: Likewise. * rt/aio_read.c: Likewise. * rt/aio_read64.c: Likewise. * rt/aio_suspend.c: Likewise. * rt/aio_write.c: Likewise. * rt/aio_write64.c: Likewise. * rt/lio_listio.c: Likewise. * rt/lio_listio64.c: Likewise. * rt/aio_notify.c: New file. * sysdeps/generic/bits/sigset.h: Pretty print. * sysdeps/posix/pwrite.c: Define weak alias only if function is really defined as __pwrite. * sysdeps/unix/sysv/linux/pread.c: Rewrite to use syscall directly instead of pread64. * sysdeps/unix/sysv/linux/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=signal] (sysdep_routines): Add rt_sigpending and rt_sigreturn. * sysdeps/unix/sysv/linux/sigaction.c: Use correct value for sigset_t size in syscall. * sysdeps/unix/sysv/linux/sigpending.c: Likewise. * sysdeps/unix/sysv/linux/sigprocmask.c: Likewise. * sysdeps/unix/sysv/linux/sigreturn.c: Likewise. * sysdeps/unix/sysv/linux/sigsuspend.c: Likewise. * sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise. * sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise. * sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise. Take care for ACT being NULL. * sysdeps/unix/sysv/linux/syscalls.list: Don't mention user for RT signals. * sysdeps/unix/sysv/linux/i386/s_pread64.s: Return ENOSYS if __NR_pread is not defined. * sysdeps/unix/sysv/linux/i386/s_pwrite64.s: Return ENOSYS if __NR_pwrite is not defined. 1997-12-07 11:15 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nss_compat/compat-grp.c: If buffer is to small, set the file handle for /etc/group back in some more cases. * nis/nss_compat/compat-pwd.c: If buffer is to small, set the file handle for /etc/passwd back in some more cases. * nis/nss_compat/compat-spwd.c: If buffer is to small, set the file handle for /etc/shadow back in some more cases. 1997-12-06 17:00 H.J. Lu <hjl@gnu.org> * sysdeps/posix/sigblock.c (__sigblock): Don't check int mask beyound its size. * sysdeps/posix/sigsetmask.c (__sigsetmask): Ditto. * sysdeps/posix/sigvec.c (convert_mask, __sigvec): Ditto. 1997-12-06 04:38 Ulrich Drepper <drepper@cygnus.com> * sysdeps/wordsize-32/inttypes.h: Rewrite {str,wcs}to{i,u}max handling. Don't use macros, we need functions. Use inline functions for optimization. * sysdeps/wordsize-64/inttypes.h: Likewise. * sysdeps/wordsize-32/Makefile: Add strtoimax, stroumax, wcstoimax, and wcstoumax. * sysdeps/wordsize-64/Makefile: Likewise. * sysdeps/wordsize-32/Dist: Likewise. * sysdeps/wordsize-64/Dist: Likewise. * sysdeps/wordsize-32/strtoimax.c: New file. * sysdeps/wordsize-32/strtoumax.c: New file. * sysdeps/wordsize-32/wcstoimax.c: New file. * sysdeps/wordsize-32/wcstoumax.c: New file. * sysdeps/wordsize-64/strtoimax.c: New file. * sysdeps/wordsize-64/strtoumax.c: New file. * sysdeps/wordsize-64/wcstoimax.c: New file. * sysdeps/wordsize-64/wcstoumax.c: New file. 1997-12-04 10:40 Philip Blundell <pb@nexus.co.uk> * sysdeps/generic/wait3.c (__wait3): Use ANSI-style definition so that transparent union works. * sysdeps/generic/wait4.c (__wait4): Likewise. * sysdeps/generic/wait.c (__wait): Likewise. * sysdeps/generic/getpeername.c (getpeername): Use socklen_t not size_t. * sysdeps/generic/syscall.c (syscall): Return value and arg are long, to match prototype. * malloc/malloc.c (HAVE_MREMAP): Set to 0 for ARM, as we don't have mremap() yet. * sysdeps/generic/usleep.c (usleep): Returns void, to match prototype. * sysdeps/unix/sysv/linux/arm/syscalls.list: New file. * sysdeps/generic/bits/time.h: Use __time_t not time_t. * sysdeps/generic/bits/resource.h: Include <bits/types.h> for __rlim_t. * sysdeps/standalone/arm/bits/errno.h (ENOTTY): Added. * sysdeps/generic/bits/dirent.h (struct dirent64): Added. * io/sys/stat.h (S_ISLNK): Always false if we don't have __S_IFLNK. * sysdeps/standalone/close.c (_STDIO_H): Define before including <bits/stdio_lim.h>. * sysdeps/standalone/filedesc.h (_STDIO_H): Likewise. 1997-12-06 01:09 Ulrich Drepper <drepper@cygnus.com> * posix/sys/wait.h: Don't use transparent unions in C++. 1997-12-05 Andreas Jaeger <aj@arthur.rhein-neckar.de> * time/time.h: Add strfxtime. * libc.map: Add tcgetsid, strcasestr, wmemrtombs, wmemrtowcs, sysv_signal, strfxtime, pread64, pwrite64. 1997-11-30 21:57 Richard Henderson <rth@cygnus.com> Alpha changes for EGCS: * config.h.in (ASM_ALPHA_NG_SYMBOL_PREFIX): New entry. * configure.in (libc_cv_gcc_alpha_ng_prefix): New check. * sysdeps/alpha/dl-machine.h (_dl_runtime_resolve): Care for prefix. (_start): Likewise. * sysdeps/unix/sysv/linux/alpha/init-first.h: Likewise.
958 lines
22 KiB
C
958 lines
22 KiB
C
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <fcntl.h>
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#include <nss.h>
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#include <grp.h>
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#include <ctype.h>
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#include <bits/libc-lock.h>
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#include <string.h>
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#include <rpcsvc/yp.h>
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#include <rpcsvc/ypclnt.h>
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#include <rpcsvc/nis.h>
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#include <nsswitch.h>
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#include "nss-nisplus.h"
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#include "nisplus-parser.h"
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static service_user *ni = NULL;
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static bool_t use_nisplus = FALSE; /* default: group_compat: nis */
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static nis_name grptable = NULL; /* Name of the group table */
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static size_t grptablelen = 0;
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/* Get the declaration of the parser function. */
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#define ENTNAME grent
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#define STRUCTURE group
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#define EXTERN_PARSER
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#include <nss/nss_files/files-parse.c>
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/* Structure for remembering -group members ... */
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#define BLACKLIST_INITIAL_SIZE 512
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#define BLACKLIST_INCREMENT 256
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struct blacklist_t
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{
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char *data;
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int current;
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int size;
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};
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struct ent_t
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{
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bool_t nis;
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bool_t nis_first;
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char *oldkey;
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int oldkeylen;
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nis_result *result;
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FILE *stream;
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struct blacklist_t blacklist;
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};
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typedef struct ent_t ent_t;
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static ent_t ext_ent = {0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}};
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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/* Prototypes for local functions. */
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static void blacklist_store_name (const char *, ent_t *);
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static int in_blacklist (const char *, int, ent_t *);
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static enum nss_status
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_nss_first_init (void)
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{
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if (ni == NULL)
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{
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__nss_database_lookup ("group_compat", NULL, "nis", &ni);
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use_nisplus = (strcmp (ni->name, "nisplus") == 0);
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}
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if (grptable == NULL)
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{
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static const char key[] = "group.org_dir.";
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const char *local_dir = nis_local_directory ();
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size_t len_local_dir = strlen (local_dir);
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grptable = malloc (sizeof (key) + len_local_dir);
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if (grptable == NULL)
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return NSS_STATUS_TRYAGAIN;
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grptablelen = ((char *) mempcpy (mempcpy (grptable,
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key, sizeof (key) - 1),
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local_dir, len_local_dir + 1)
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- grptable) - 1;
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}
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return NSS_STATUS_SUCCESS;
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}
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static enum nss_status
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internal_setgrent (ent_t *ent)
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{
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enum nss_status status = NSS_STATUS_SUCCESS;
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ent->nis = ent->nis_first = 0;
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if (_nss_first_init () != NSS_STATUS_SUCCESS)
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return NSS_STATUS_UNAVAIL;
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if (ent->oldkey != NULL)
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{
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free (ent->oldkey);
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ent->oldkey = NULL;
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ent->oldkeylen = 0;
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}
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if (ent->result != NULL)
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{
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nis_freeresult (ent->result);
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ent->result = NULL;
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}
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ent->blacklist.current = 0;
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if (ent->blacklist.data != NULL)
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ent->blacklist.data[0] = '\0';
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if (ent->stream == NULL)
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{
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ent->stream = fopen ("/etc/group", "r");
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if (ent->stream == NULL)
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status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
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else
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{
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/* We have to make sure the file is `closed on exec'. */
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int result, flags;
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result = flags = fcntl (fileno (ent->stream), F_GETFD, 0);
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if (result >= 0)
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno (ent->stream), F_SETFD, flags);
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}
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if (result < 0)
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{
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/* Something went wrong. Close the stream and return a
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failure. */
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fclose (ent->stream);
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ent->stream = NULL;
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status = NSS_STATUS_UNAVAIL;
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}
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}
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}
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else
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rewind (ent->stream);
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return status;
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}
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enum nss_status
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_nss_compat_setgrent (void)
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{
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enum nss_status result;
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__libc_lock_lock (lock);
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result = internal_setgrent (&ext_ent);
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__libc_lock_unlock (lock);
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return result;
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}
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static enum nss_status
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internal_endgrent (ent_t *ent)
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{
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if (ent->stream != NULL)
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{
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fclose (ent->stream);
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ent->stream = NULL;
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}
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ent->nis = ent->nis_first = 0;
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if (ent->oldkey != NULL)
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{
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free (ent->oldkey);
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ent->oldkey = NULL;
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ent->oldkeylen = 0;
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}
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if (ent->result != NULL)
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{
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nis_freeresult (ent->result);
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ent->result = NULL;
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}
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ent->blacklist.current = 0;
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if (ent->blacklist.data != NULL)
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ent->blacklist.data[0] = '\0';
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_compat_endgrent (void)
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{
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enum nss_status result;
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__libc_lock_lock (lock);
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result = internal_endgrent (&ext_ent);
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__libc_lock_unlock (lock);
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return result;
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}
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static enum nss_status
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getgrent_next_nis (struct group *result, ent_t *ent, char *buffer,
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size_t buflen, int *errnop)
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{
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struct parser_data *data = (void *) buffer;
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char *domain;
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char *outkey, *outval;
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int outkeylen, outvallen, parse_res;
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char *p;
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if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
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{
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ent->nis = 0;
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return NSS_STATUS_NOTFOUND;
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}
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do
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{
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char *save_oldkey;
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int save_oldlen;
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bool_t save_nis_first;
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if (ent->nis_first)
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{
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if (yp_first (domain, "group.byname", &outkey, &outkeylen,
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&outval, &outvallen) != YPERR_SUCCESS)
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{
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ent->nis = 0;
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return NSS_STATUS_UNAVAIL;
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}
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save_oldkey = ent->oldkey;
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save_oldlen = ent->oldkeylen;
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save_nis_first = TRUE;
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ent->oldkey = outkey;
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ent->oldkeylen = outkeylen;
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ent->nis_first = FALSE;
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}
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else
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{
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if (yp_next (domain, "group.byname", ent->oldkey, ent->oldkeylen,
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&outkey, &outkeylen, &outval, &outvallen)
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!= YPERR_SUCCESS)
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{
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ent->nis = 0;
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return NSS_STATUS_NOTFOUND;
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}
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save_oldkey = ent->oldkey;
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save_oldlen = ent->oldkeylen;
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save_nis_first = FALSE;
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ent->oldkey = outkey;
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ent->oldkeylen = outkeylen;
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}
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/* Copy the found data to our buffer */
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p = strncpy (buffer, outval, buflen);
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/* ...and free the data. */
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free (outval);
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while (isspace (*p))
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++p;
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parse_res = _nss_files_parse_grent (p, result, data, buflen, errnop);
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if (parse_res == -1)
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{
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free (ent->oldkey);
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ent->oldkey = save_oldkey;
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ent->oldkeylen = save_oldlen;
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ent->nis_first = save_nis_first;
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*errnop = ERANGE;
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return NSS_STATUS_TRYAGAIN;
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}
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else
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{
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if (!save_nis_first)
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free (save_oldkey);
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}
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if (parse_res &&
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in_blacklist (result->gr_name, strlen (result->gr_name), ent))
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parse_res = 0; /* if result->gr_name in blacklist,search next entry */
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}
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while (!parse_res);
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return NSS_STATUS_SUCCESS;
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}
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static enum nss_status
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getgrent_next_nisplus (struct group *result, ent_t *ent, char *buffer,
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size_t buflen, int *errnop)
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{
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int parse_res;
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do
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{
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nis_result *save_oldres;
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bool_t save_nis_first;
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if (ent->nis_first)
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{
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save_oldres = ent->result;
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save_nis_first = TRUE;
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ent->result = nis_first_entry(grptable);
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if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
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{
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ent->nis = 0;
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return niserr2nss (ent->result->status);
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}
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ent->nis_first = FALSE;
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}
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else
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{
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nis_result *res;
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save_oldres = ent->result;
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save_nis_first = FALSE;
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res = nis_next_entry(grptable, &ent->result->cookie);
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ent->result = res;
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if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
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{
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ent->nis = 0;
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return niserr2nss (ent->result->status);
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}
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}
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parse_res = _nss_nisplus_parse_grent (ent->result, 0, result,
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buffer, buflen, errnop);
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if (parse_res == -1)
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{
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nis_freeresult (ent->result);
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ent->result = save_oldres;
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ent->nis_first = save_nis_first;
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*errnop = ERANGE;
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return NSS_STATUS_TRYAGAIN;
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}
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else
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{
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if (!save_nis_first)
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nis_freeresult (save_oldres);
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}
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if (parse_res &&
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in_blacklist (result->gr_name, strlen (result->gr_name), ent))
|
|
parse_res = 0; /* if result->gr_name in blacklist,search next entry */
|
|
}
|
|
while (!parse_res);
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|
|
|
|
/* This function handle the +group entrys in /etc/group */
|
|
static enum nss_status
|
|
getgrnam_plusgroup (const char *name, struct group *result, char *buffer,
|
|
size_t buflen, int *errnop)
|
|
{
|
|
struct parser_data *data = (void *) buffer;
|
|
int parse_res;
|
|
|
|
if (use_nisplus) /* Do the NIS+ query here */
|
|
{
|
|
nis_result *res;
|
|
char buf[strlen (name) + 24 + grptablelen];
|
|
|
|
sprintf(buf, "[name=%s],%s", name, grptable);
|
|
res = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
|
|
if (niserr2nss (res->status) != NSS_STATUS_SUCCESS)
|
|
{
|
|
enum nss_status status = niserr2nss (res->status);
|
|
|
|
nis_freeresult (res);
|
|
return status;
|
|
}
|
|
parse_res = _nss_nisplus_parse_grent (res, 0, result, buffer, buflen,
|
|
errnop);
|
|
if (parse_res == -1)
|
|
{
|
|
nis_freeresult (res);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
nis_freeresult (res);
|
|
}
|
|
else /* Use NIS */
|
|
{
|
|
char *domain, *outval, *p;
|
|
int outvallen;
|
|
|
|
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
|
|
{
|
|
*errnop = errno;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
if (yp_match (domain, "group.byname", name, strlen (name),
|
|
&outval, &outvallen) != YPERR_SUCCESS)
|
|
{
|
|
*errnop = errno;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
p = strncpy (buffer, outval,
|
|
buflen < (size_t) outvallen ? buflen : (size_t) outvallen);
|
|
free (outval);
|
|
while (isspace (*p))
|
|
p++;
|
|
parse_res = _nss_files_parse_grent (p, result, data, buflen, errnop);
|
|
if (parse_res == -1)
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
if (parse_res)
|
|
/* We found the entry. */
|
|
return NSS_STATUS_SUCCESS;
|
|
else
|
|
return NSS_STATUS_RETURN;
|
|
}
|
|
|
|
static enum nss_status
|
|
getgrent_next_file (struct group *result, ent_t *ent,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
struct parser_data *data = (void *) buffer;
|
|
while (1)
|
|
{
|
|
fpos_t pos;
|
|
int parse_res = 0;
|
|
char *p;
|
|
|
|
do
|
|
{
|
|
fgetpos (ent->stream, &pos);
|
|
p = fgets (buffer, buflen, ent->stream);
|
|
if (p == NULL)
|
|
{
|
|
if (feof (ent->stream))
|
|
return NSS_STATUS_NOTFOUND;
|
|
else
|
|
{
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
}
|
|
|
|
/* Terminate the line for any case. */
|
|
buffer[buflen - 1] = '\0';
|
|
|
|
/* Skip leading blanks. */
|
|
while (isspace (*p))
|
|
++p;
|
|
}
|
|
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
|
|
/* Parse the line. If it is invalid, loop to
|
|
get the next line of the file to parse. */
|
|
!(parse_res = _nss_files_parse_grent (p, result, data, buflen,
|
|
errnop)));
|
|
|
|
if (parse_res == -1)
|
|
{
|
|
/* The parser ran out of space. */
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
|
|
/* This is a real entry. */
|
|
break;
|
|
|
|
/* -group */
|
|
if (result->gr_name[0] == '-' && result->gr_name[1] != '\0'
|
|
&& result->gr_name[1] != '@')
|
|
{
|
|
blacklist_store_name (&result->gr_name[1], ent);
|
|
continue;
|
|
}
|
|
|
|
/* +group */
|
|
if (result->gr_name[0] == '+' && result->gr_name[1] != '\0'
|
|
&& result->gr_name[1] != '@')
|
|
{
|
|
enum nss_status status;
|
|
|
|
/* Store the group in the blacklist for the "+" at the end of
|
|
/etc/group */
|
|
blacklist_store_name (&result->gr_name[1], ent);
|
|
status = getgrnam_plusgroup (&result->gr_name[1], result, buffer,
|
|
buflen, errnop);
|
|
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
|
|
break;
|
|
else
|
|
if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
|
|
continue;
|
|
else
|
|
{
|
|
if (status == NSS_STATUS_TRYAGAIN)
|
|
{
|
|
/* The parser ran out of space. */
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
}
|
|
return status;
|
|
}
|
|
}
|
|
|
|
/* +:... */
|
|
if (result->gr_name[0] == '+' && result->gr_name[1] == '\0')
|
|
{
|
|
ent->nis = TRUE;
|
|
ent->nis_first = TRUE;
|
|
|
|
if (use_nisplus)
|
|
return getgrent_next_nisplus (result, ent, buffer, buflen, errnop);
|
|
else
|
|
return getgrent_next_nis (result, ent, buffer, buflen, errnop);
|
|
}
|
|
}
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
static enum nss_status
|
|
internal_getgrent_r (struct group *gr, ent_t *ent, char *buffer,
|
|
size_t buflen, int *errnop)
|
|
{
|
|
if (ent->nis)
|
|
{
|
|
if (use_nisplus)
|
|
return getgrent_next_nisplus (gr, ent, buffer, buflen, errnop);
|
|
else
|
|
return getgrent_next_nis (gr, ent, buffer, buflen, errnop);
|
|
}
|
|
else
|
|
return getgrent_next_file (gr, ent, buffer, buflen, errnop);
|
|
}
|
|
|
|
enum nss_status
|
|
_nss_compat_getgrent_r (struct group *grp, char *buffer, size_t buflen,
|
|
int *errnop)
|
|
{
|
|
enum nss_status status = NSS_STATUS_SUCCESS;
|
|
|
|
__libc_lock_lock (lock);
|
|
|
|
/* Be prepared that the setgrent function was not called before. */
|
|
if (ext_ent.stream == NULL)
|
|
status = internal_setgrent (&ext_ent);
|
|
|
|
if (status == NSS_STATUS_SUCCESS)
|
|
status = internal_getgrent_r (grp, &ext_ent, buffer, buflen, errnop);
|
|
|
|
__libc_lock_unlock (lock);
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Searches in /etc/group and the NIS/NIS+ map for a special group */
|
|
static enum nss_status
|
|
internal_getgrnam_r (const char *name, struct group *result, ent_t *ent,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
struct parser_data *data = (void *) buffer;
|
|
while (1)
|
|
{
|
|
fpos_t pos;
|
|
int parse_res = 0;
|
|
char *p;
|
|
|
|
do
|
|
{
|
|
fgetpos (ent->stream, &pos);
|
|
p = fgets (buffer, buflen, ent->stream);
|
|
if (p == NULL)
|
|
{
|
|
if (feof (ent->stream))
|
|
return NSS_STATUS_NOTFOUND;
|
|
else
|
|
{
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
}
|
|
|
|
/* Terminate the line for any case. */
|
|
buffer[buflen - 1] = '\0';
|
|
|
|
/* Skip leading blanks. */
|
|
while (isspace (*p))
|
|
++p;
|
|
}
|
|
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
|
|
/* Parse the line. If it is invalid, loop to
|
|
get the next line of the file to parse. */
|
|
!(parse_res = _nss_files_parse_grent (p, result, data, buflen,
|
|
errnop)));
|
|
|
|
if (parse_res == -1)
|
|
{
|
|
/* The parser ran out of space. */
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
/* This is a real entry. */
|
|
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
|
|
{
|
|
if (strcmp (result->gr_name, name) == 0)
|
|
return NSS_STATUS_SUCCESS;
|
|
else
|
|
continue;
|
|
}
|
|
|
|
/* -group */
|
|
if (result->gr_name[0] == '-' && result->gr_name[1] != '\0')
|
|
{
|
|
if (strcmp (&result->gr_name[1], name) == 0)
|
|
return NSS_STATUS_NOTFOUND;
|
|
else
|
|
continue;
|
|
}
|
|
|
|
/* +group */
|
|
if (result->gr_name[0] == '+' && result->gr_name[1] != '\0')
|
|
{
|
|
if (strcmp (name, &result->gr_name[1]) == 0)
|
|
{
|
|
enum nss_status status;
|
|
|
|
status = getgrnam_plusgroup (name, result, buffer, buflen,
|
|
errnop);
|
|
if (status == NSS_STATUS_RETURN)
|
|
/* We couldn't parse the entry */
|
|
continue;
|
|
else
|
|
return status;
|
|
}
|
|
}
|
|
/* +:... */
|
|
if (result->gr_name[0] == '+' && result->gr_name[1] == '\0')
|
|
{
|
|
enum nss_status status;
|
|
|
|
status = getgrnam_plusgroup (name, result, buffer, buflen, errnop);
|
|
if (status == NSS_STATUS_RETURN)
|
|
/* We couldn't parse the entry */
|
|
continue;
|
|
else
|
|
return status;
|
|
}
|
|
}
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|
|
|
|
enum nss_status
|
|
_nss_compat_getgrnam_r (const char *name, struct group *grp,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
ent_t ent = {0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}};
|
|
enum nss_status status;
|
|
|
|
if (name[0] == '-' || name[0] == '+')
|
|
return NSS_STATUS_NOTFOUND;
|
|
|
|
__libc_lock_lock (lock);
|
|
|
|
status = internal_setgrent (&ent);
|
|
|
|
__libc_lock_unlock (lock);
|
|
|
|
if (status != NSS_STATUS_SUCCESS)
|
|
return status;
|
|
|
|
status = internal_getgrnam_r (name, grp, &ent, buffer, buflen, errnop);
|
|
|
|
internal_endgrent (&ent);
|
|
|
|
return status;
|
|
}
|
|
|
|
/* This function handle the + entry in /etc/group */
|
|
static enum nss_status
|
|
getgrgid_plusgroup (gid_t gid, struct group *result, char *buffer,
|
|
size_t buflen, int *errnop)
|
|
{
|
|
struct parser_data *data = (void *) buffer;
|
|
int parse_res;
|
|
|
|
if (use_nisplus) /* Do the NIS+ query here */
|
|
{
|
|
nis_result *res;
|
|
char buf[24 + grptablelen];
|
|
|
|
sprintf(buf, "[gid=%d],%s", gid, grptable);
|
|
res = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
|
|
if (niserr2nss (res->status) != NSS_STATUS_SUCCESS)
|
|
{
|
|
enum nss_status status = niserr2nss (res->status);
|
|
|
|
nis_freeresult (res);
|
|
return status;
|
|
}
|
|
if ((parse_res = _nss_nisplus_parse_grent (res, 0, result, buffer,
|
|
buflen, errnop)) == -1)
|
|
{
|
|
nis_freeresult (res);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
nis_freeresult (res);
|
|
}
|
|
else /* Use NIS */
|
|
{
|
|
char buf[24];
|
|
char *domain, *outval, *p;
|
|
int outvallen;
|
|
|
|
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
|
|
{
|
|
*errnop = errno;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
snprintf (buf, sizeof (buf), "%d", gid);
|
|
|
|
if (yp_match (domain, "group.bygid", buf, strlen (buf),
|
|
&outval, &outvallen) != YPERR_SUCCESS)
|
|
{
|
|
*errnop = errno;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
p = strncpy (buffer, outval,
|
|
buflen < (size_t) outvallen ? buflen : (size_t) outvallen);
|
|
free (outval);
|
|
while (isspace (*p))
|
|
p++;
|
|
parse_res = _nss_files_parse_grent (p, result, data, buflen, errnop);
|
|
if (parse_res == -1)
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
if (parse_res)
|
|
/* We found the entry. */
|
|
return NSS_STATUS_SUCCESS;
|
|
else
|
|
return NSS_STATUS_RETURN;
|
|
}
|
|
|
|
/* Searches in /etc/group and the NIS/NIS+ map for a special group id */
|
|
static enum nss_status
|
|
internal_getgrgid_r (gid_t gid, struct group *result, ent_t *ent,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
struct parser_data *data = (void *) buffer;
|
|
while (1)
|
|
{
|
|
fpos_t pos;
|
|
int parse_res = 0;
|
|
char *p;
|
|
|
|
do
|
|
{
|
|
fgetpos (ent->stream, &pos);
|
|
p = fgets (buffer, buflen, ent->stream);
|
|
if (p == NULL)
|
|
{
|
|
if (feof (ent->stream))
|
|
return NSS_STATUS_NOTFOUND;
|
|
else
|
|
{
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
}
|
|
|
|
/* Terminate the line for any case. */
|
|
buffer[buflen - 1] = '\0';
|
|
|
|
/* Skip leading blanks. */
|
|
while (isspace (*p))
|
|
++p;
|
|
}
|
|
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
|
|
/* Parse the line. If it is invalid, loop to
|
|
get the next line of the file to parse. */
|
|
!(parse_res = _nss_files_parse_grent (p, result, data, buflen,
|
|
errnop)));
|
|
|
|
if (parse_res == -1)
|
|
{
|
|
/* The parser ran out of space. */
|
|
fsetpos (ent->stream, &pos);
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
/* This is a real entry. */
|
|
if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
|
|
{
|
|
if (result->gr_gid == gid)
|
|
return NSS_STATUS_SUCCESS;
|
|
else
|
|
continue;
|
|
}
|
|
|
|
/* -group */
|
|
if (result->gr_name[0] == '-' && result->gr_name[1] != '\0')
|
|
{
|
|
blacklist_store_name (&result->gr_name[1], ent);
|
|
continue;
|
|
}
|
|
|
|
/* +group */
|
|
if (result->gr_name[0] == '+' && result->gr_name[1] != '\0')
|
|
{
|
|
enum nss_status status;
|
|
|
|
/* Store the group in the blacklist for the "+" at the end of
|
|
/etc/group */
|
|
blacklist_store_name (&result->gr_name[1], ent);
|
|
status = getgrnam_plusgroup (&result->gr_name[1], result, buffer,
|
|
buflen, errnop);
|
|
if (status == NSS_STATUS_SUCCESS && result->gr_gid == gid)
|
|
break;
|
|
else
|
|
continue;
|
|
}
|
|
/* +:... */
|
|
if (result->gr_name[0] == '+' && result->gr_name[1] == '\0')
|
|
{
|
|
enum nss_status status;
|
|
|
|
status = getgrgid_plusgroup (gid, result, buffer, buflen, errnop);
|
|
if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
|
|
return NSS_STATUS_NOTFOUND;
|
|
else
|
|
return status;
|
|
}
|
|
}
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|
|
|
|
enum nss_status
|
|
_nss_compat_getgrgid_r (gid_t gid, struct group *grp,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
ent_t ent = {0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0}};
|
|
enum nss_status status;
|
|
|
|
__libc_lock_lock (lock);
|
|
|
|
status = internal_setgrent (&ent);
|
|
|
|
__libc_lock_unlock (lock);
|
|
|
|
if (status != NSS_STATUS_SUCCESS)
|
|
return status;
|
|
|
|
status = internal_getgrgid_r (gid, grp, &ent, buffer, buflen, errnop);
|
|
|
|
internal_endgrent (&ent);
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
/* Support routines for remembering -@netgroup and -user entries.
|
|
The names are stored in a single string with `|' as separator. */
|
|
static void
|
|
blacklist_store_name (const char *name, ent_t *ent)
|
|
{
|
|
int namelen = strlen (name);
|
|
char *tmp;
|
|
|
|
/* first call, setup cache */
|
|
if (ent->blacklist.size == 0)
|
|
{
|
|
ent->blacklist.size = MAX (BLACKLIST_INITIAL_SIZE, 2 * namelen);
|
|
ent->blacklist.data = malloc (ent->blacklist.size);
|
|
if (ent->blacklist.data == NULL)
|
|
return;
|
|
ent->blacklist.data[0] = '|';
|
|
ent->blacklist.data[1] = '\0';
|
|
ent->blacklist.current = 1;
|
|
}
|
|
else
|
|
{
|
|
if (in_blacklist (name, namelen, ent))
|
|
return; /* no duplicates */
|
|
|
|
if (ent->blacklist.current + namelen + 1 >= ent->blacklist.size)
|
|
{
|
|
ent->blacklist.size += MAX (BLACKLIST_INCREMENT, 2 * namelen);
|
|
tmp = realloc (ent->blacklist.data, ent->blacklist.size);
|
|
if (tmp == NULL)
|
|
{
|
|
free (ent->blacklist.data);
|
|
ent->blacklist.size = 0;
|
|
return;
|
|
}
|
|
ent->blacklist.data = tmp;
|
|
}
|
|
}
|
|
|
|
tmp = stpcpy (ent->blacklist.data + ent->blacklist.current, name);
|
|
*tmp++ = '|';
|
|
*tmp = '\0';
|
|
ent->blacklist.current += namelen + 1;
|
|
|
|
return;
|
|
}
|
|
|
|
/* returns TRUE if ent->blacklist contains name, else FALSE */
|
|
static bool_t
|
|
in_blacklist (const char *name, int namelen, ent_t *ent)
|
|
{
|
|
char buf[namelen + 3];
|
|
char *cp;
|
|
|
|
if (ent->blacklist.data == NULL)
|
|
return FALSE;
|
|
|
|
buf[0] = '|';
|
|
cp = stpcpy (&buf[1], name);
|
|
*cp++= '|';
|
|
*cp = '\0';
|
|
return strstr (ent->blacklist.data, buf) != NULL;
|
|
}
|