glibc/nis/nss_compat/compat-pwd.c
Ulrich Drepper 7799b7b335 Update.
1997-04-15 03:14  Ulrich Drepper  <drepper@cygnus.com>

	* wcsmbs/wcsstr.c: Add weak alias wcswcs for Unix98 compliance.

	* math/Makefile (libm-calls): Add s_sincos and s_cproj.
	* math/mathcalls.h: Add prototype for sincos.
	* sysdeps/i386/fpu/__math.h: Warn about restriction on arguments to
	inlined sin and cos function.
	Define functions new in ISO C 9X when __USE_ISOC9X is defined.
	Add optimized version of finite.
	Rewrite sincos function to handle too large arguments.
	* sysdeps/libm-i387/s_cos.S: Better code alignment.
	* sysdeps/libm-i387/s_cosl.S: Likewise.
	* sysdeps/libm-i387/s_sin.S: Likewise.
	* sysdeps/libm-i387/s_sinl.S: Likewise.
	* sysdeps/libm-i387/s_finite.S: Yet better code.
	* sysdeps/libm-i387/s_finitef.S: Likewise.
	* sysdeps/libm-i387/s_sincos.S: New file.
	* sysdeps/libm-i387/s_sincosf.S: New file.
	* sysdeps/libm-i387/s_sincosl.S: New file.
	* sysdeps/libm-ieee754/s_sincos.c: New file.
	* sysdeps/libm-ieee754/s_sincosf.c: New file.
	* sysdeps/libm-ieee754/s_sincosl.c: New file.

	* sysdeps/libm-ieee754/s_ccosh.c: Change to use sincos function.
	* sysdeps/libm-ieee754/s_ccoshf.c: Likewise.
	* sysdeps/libm-ieee754/s_ccoshl.c: Likewise.
	* sysdeps/libm-ieee754/s_cexp.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpf.c: Likewise.
	* sysdeps/libm-ieee754/s_cexpl.c: Likewise.
	* sysdeps/libm-ieee754/s_csinh.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhf.c: Likewise.
	* sysdeps/libm-ieee754/s_csinhl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctan.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanl.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanh.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhf.c: Likewise.
	* sysdeps/libm-ieee754/s_ctanhl.c: Likewise.

	* sysdeps/libm-ieee754/s_cosl.c: Correct check for range.
	* sysdeps/libm-ieee754/s_sinl.c: Likewise.

	* sysdeps/libm-ieee754/s_roundtol.c: Fix typos.
	* sysdeps/libm-ieee754/s_roundtoll.c: Likewise.

	* nis/Makefile (services): Mention nisplus before compat.
	* nis/nis_call.c (__do_niscall): Change type of variable server_len
	to prevent warning.
	* nis/nss_compat/compat-grp.c (getgrent_next_file_plusgroup): Add
	cast to prevent warning.
	* nis/nss_compat/compat-pwd.c (getpwent_next_file_plususer): Likewise.
	* nis/nss_compat/compat-spwd.c (getspent_next_file_plususer): Likewise.
	* nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_parse_hostent): Change
	type of variable `i' to prevent warning.
	* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent):
	Likewise.
	* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent):
	Likewise.
	* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise.
	* nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent):
	Likewise.

	* sysdeps/generic/Dist: Remove old math implementation files.
	* sysdeps/generic/mathimpl.h: Removed.
	* sysdeps/generic/trig.h: Removed.
	* sysdeps/generic/sincos.c: Removed.
	* sysdeps/generic/asincos.c: Removed.
	* sysdeps/generic/exp__E.c: Removed.
	* sysdeps/generic/log__L.c: Removed.

1997-04-13 17:18  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (fREe): Small optimization.  Before returning,
	add fast check whether the heap containing top can go away.

1997-04-11 16:46  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (mALLOc, rEALLOc, cALLOc, mEMALIGn): When
	failing to allocate a new chunk, also try the main_arena.  It may
	be that we are only running out of mmapped regions, and other
	arenas cannot be enlarged sufficiently.
	(new_heap, malloc_extend_top): Handle top_pad more consistently,
	i.e. only in new_heap().

1997-04-13 21:10  Philip Blundell  <pjb27@cl.cam.ac.uk>

	* sysdeps/posix/Makefile: Don't try to build and run mk-stdiolim
	if cross-compiling.

	* configure.in: Recognise "...linuxaout" OS names and turn off ELF.

	* configure.in: Add ARM support.
	* sysdeps/arm/Implies: New file.
	* sysdeps/arm/__longjmp.S: New file.
	* sysdeps/arm/bsd-_setjmp: New file.
	* sysdeps/arm/bsd-setjmp: New file.
	* sysdeps/arm/bytesex.h: New file.
	* sysdeps/arm/fpu_control.h: New file.
	* sysdeps/arm/jmp_buf.h: New file.
	* sysdeps/arm/setjmp.h: New file.
	* sysdeps/arm/sysdep.h: New file.
	* sysdeps/unix/arm/config.h: New file.

1997-04-14 04:03  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/s_cproj.c: New file.
	* sysdeps/libm-ieee754/s_cprojf.c: New file.
	* sysdeps/libm-ieee754/s_cprojl.c: New file.
1997-04-15 01:38:39 +00:00

997 lines
23 KiB
C

/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
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 <pwd.h>
#include <errno.h>
#include <ctype.h>
#include <netdb.h>
#include <string.h>
#include <libc-lock.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include <rpcsvc/nis.h>
#include <rpcsvc/nislib.h>
#include <nsswitch.h>
#include "netgroup.h"
#include "nss-nisplus.h"
static service_user *ni = NULL;
static bool_t use_nisplus = FALSE; /* default: passwd_compat: nis */
/* Get the declaration of the parser function. */
#define ENTNAME pwent
#define STRUCTURE passwd
#define EXTERN_PARSER
#include "../../nss/nss_files/files-parse.c"
/* Structure for remembering -@netgroup and -user members ... */
#define BLACKLIST_INITIAL_SIZE 512
#define BLACKLIST_INCREMENT 256
struct blacklist_t
{
char *data;
int current;
int size;
};
struct ent_t
{
bool_t netgroup;
bool_t nis;
bool_t first;
char *oldkey;
int oldkeylen;
nis_result *result;
nis_name *names;
u_long names_nr;
FILE *stream;
struct blacklist_t blacklist;
struct passwd pwd;
struct __netgrent netgrdata;
};
typedef struct ent_t ent_t;
static ent_t ext_ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0},
{NULL, NULL, 0, 0, NULL, NULL, NULL}};
/* Protect global state against multiple changers. */
__libc_lock_define_initialized (static, lock)
/* Prototypes for local functions. */
static void blacklist_store_name (const char *, ent_t *);
static int in_blacklist (const char *, int, ent_t *);
extern int _nss_nisplus_parse_pwent (nis_result *, struct passwd *,
char *, size_t);
static void
give_pwd_free (struct passwd *pwd)
{
if (pwd->pw_name != NULL)
free (pwd->pw_name);
if (pwd->pw_passwd != NULL)
free (pwd->pw_passwd);
if (pwd->pw_gecos != NULL)
free (pwd->pw_gecos);
if (pwd->pw_dir != NULL)
free (pwd->pw_dir);
if (pwd->pw_shell != NULL)
free (pwd->pw_shell);
memset (pwd, '\0', sizeof (struct passwd));
}
static size_t
pwd_need_buflen (struct passwd *pwd)
{
size_t len = 0;
if (pwd->pw_passwd != NULL)
len += strlen (pwd->pw_passwd) + 1;
if (pwd->pw_gecos != NULL)
len += strlen (pwd->pw_gecos) + 1;
if (pwd->pw_dir != NULL)
len += strlen (pwd->pw_dir) + 1;
if (pwd->pw_shell != NULL)
len += strlen (pwd->pw_shell) + 1;
return len;
}
static void
copy_pwd_changes (struct passwd *dest, struct passwd *src,
char *buffer, size_t buflen)
{
if (src->pw_passwd != NULL && strlen (src->pw_passwd))
{
if (buffer == NULL)
dest->pw_passwd = strdup (src->pw_passwd);
else if (dest->pw_passwd &&
strlen (dest->pw_passwd) >= strlen (src->pw_passwd))
strcpy (dest->pw_passwd, src->pw_passwd);
else
{
dest->pw_passwd = buffer;
strcpy (dest->pw_passwd, src->pw_passwd);
buffer += strlen (dest->pw_passwd) + 1;
buflen = buflen - (strlen (dest->pw_passwd) + 1);
}
}
if (src->pw_gecos != NULL && strlen (src->pw_gecos))
{
if (buffer == NULL)
dest->pw_gecos = strdup (src->pw_gecos);
else if (dest->pw_gecos &&
strlen (dest->pw_gecos) >= strlen (src->pw_gecos))
strcpy (dest->pw_gecos, src->pw_gecos);
else
{
dest->pw_gecos = buffer;
strcpy (dest->pw_gecos, src->pw_gecos);
buffer += strlen (dest->pw_gecos) + 1;
buflen = buflen - (strlen (dest->pw_gecos) + 1);
}
}
if (src->pw_dir != NULL && strlen (src->pw_dir))
{
if (buffer == NULL)
dest->pw_dir = strdup (src->pw_dir);
else if (dest->pw_dir &&
strlen (dest->pw_dir) >= strlen (src->pw_dir))
strcpy (dest->pw_dir, src->pw_dir);
else
{
dest->pw_dir = buffer;
strcpy (dest->pw_dir, src->pw_dir);
buffer += strlen (dest->pw_dir) + 1;
buflen = buflen - (strlen (dest->pw_dir) + 1);
}
}
if (src->pw_shell != NULL && strlen (src->pw_shell))
{
if (buffer == NULL)
dest->pw_shell = strdup (src->pw_shell);
else if (dest->pw_shell &&
strlen (dest->pw_shell) >= strlen (src->pw_shell))
strcpy (dest->pw_shell, src->pw_shell);
else
{
dest->pw_shell = buffer;
strcpy (dest->pw_shell, src->pw_shell);
buffer += strlen (dest->pw_shell) + 1;
buflen = buflen - (strlen (dest->pw_shell) + 1);
}
}
}
static enum nss_status
internal_setpwent (ent_t *ent)
{
enum nss_status status = NSS_STATUS_SUCCESS;
ent->nis = ent->first = ent->netgroup = 0;
/* If something was left over free it. */
if (ent->netgroup)
__internal_endnetgrent (&ent->netgrdata);
if (ent->oldkey != NULL)
{
free (ent->oldkey);
ent->oldkey = NULL;
ent->oldkeylen = 0;
}
if (ent->result != NULL)
{
nis_freeresult (ent->result);
ent->result = NULL;
}
if (ent->names != NULL)
{
nis_freenames (ent->names);
ent->names = NULL;
}
ent->names_nr = 0;
ent->blacklist.current = 0;
if (ent->blacklist.data != NULL)
ent->blacklist.data[0] = '\0';
if (ent->stream == NULL)
{
ent->stream = fopen ("/etc/passwd", "r");
if (ent->stream == NULL)
status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
}
else
rewind (ent->stream);
give_pwd_free (&ent->pwd);
return status;
}
enum nss_status
_nss_compat_setpwent (void)
{
enum nss_status result;
__libc_lock_lock (lock);
if (ni == NULL)
{
__nss_database_lookup ("passwd_compat", NULL, "nis", &ni);
use_nisplus = (strcmp (ni->name, "nisplus") == 0);
}
result = internal_setpwent (&ext_ent);
__libc_lock_unlock (lock);
return result;
}
static enum nss_status
internal_endpwent (ent_t *ent)
{
if (ent->stream != NULL)
{
fclose (ent->stream);
ent->stream = NULL;
}
ent->nis = ent->first = ent->netgroup = 0;
if (ent->oldkey != NULL)
{
free (ent->oldkey);
ent->oldkey = NULL;
ent->oldkeylen = 0;
}
if (ent->result != NULL)
{
nis_freeresult (ent->result);
ent->result = NULL;
}
if (ent->names != NULL)
{
nis_freenames (ent->names);
ent->names = NULL;
}
ent->names_nr = 0;
ent->blacklist.current = 0;
if (ent->blacklist.data != NULL)
ent->blacklist.data[0] = '\0';
give_pwd_free (&ent->pwd);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_compat_endpwent (void)
{
enum nss_status result;
__libc_lock_lock (lock);
if (ext_ent.netgroup)
__internal_endnetgrent (&ext_ent.netgrdata);
result = internal_endpwent (&ext_ent);
__libc_lock_unlock (lock);
return result;
}
static enum nss_status
getpwent_next_nis_netgr (struct passwd *result, ent_t *ent, char *group,
char *buffer, size_t buflen)
{
struct parser_data *data = (void *) buffer;
char *ypdomain, *host, *user, *domain, *outval, *p, *p2;
int status, outvallen;
size_t p2len;
if (yp_get_default_domain (&ypdomain) != YPERR_SUCCESS)
{
ent->netgroup = 0;
ent->first = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_UNAVAIL;
}
if (ent->first == TRUE)
{
memset (&ent->netgrdata, 0, sizeof (struct __netgrent));
__internal_setnetgrent (group, &ent->netgrdata);
ent->first = FALSE;
}
while (1)
{
status = __internal_getnetgrent_r (&host, &user, &domain,
&ent->netgrdata, buffer, buflen);
if (status != 1)
{
__internal_endnetgrent (&ent->netgrdata);
ent->netgroup = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_RETURN;
}
if (user == NULL || user[0] == '-')
continue;
if (domain != NULL && strcmp (ypdomain, domain) != 0)
continue;
if (yp_match (ypdomain, "passwd.byname", user,
strlen (user), &outval, &outvallen)
!= YPERR_SUCCESS)
continue;
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
__set_errno (ERANGE);
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
buflen -= p2len;
p = strncpy (buffer, outval, buflen);
while (isspace (*p))
p++;
free (outval);
if (_nss_files_parse_pwent (p, result, data, buflen))
{
copy_pwd_changes (result, &ent->pwd, p2, p2len);
break;
}
}
return NSS_STATUS_SUCCESS;
}
static enum nss_status
getpwent_next_nisplus_netgr (struct passwd *result, ent_t *ent, char *group,
char *buffer, size_t buflen)
{
char *ypdomain, *host, *user, *domain, *p2;
int status, parse_res;
size_t p2len;
nis_result *nisres;
/* Maybe we should use domainname here ? We need the current
domainname for the domain field in netgroups */
if (yp_get_default_domain (&ypdomain) != YPERR_SUCCESS)
{
ent->netgroup = 0;
ent->first = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_UNAVAIL;
}
if (ent->first == TRUE)
{
bzero (&ent->netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (group, &ent->netgrdata);
ent->first = FALSE;
}
while (1)
{
status = __internal_getnetgrent_r (&host, &user, &domain,
&ent->netgrdata, buffer, buflen);
if (status != 1)
{
__internal_endnetgrent (&ent->netgrdata);
ent->netgroup = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_RETURN;
}
if (user == NULL || user[0] == '-')
continue;
if (domain != NULL && strcmp (ypdomain, domain) != 0)
continue;
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
__set_errno (ERANGE);
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
buflen -= p2len;
{
char buf[strlen (user) + 30];
sprintf(buf, "[name=%s],passwd.org_dir", user);
nisres = nis_list(buf, EXPAND_NAME, NULL, NULL);
}
if (niserr2nss (nisres->status) != NSS_STATUS_SUCCESS)
{
nis_freeresult (nisres);
continue;
}
parse_res = _nss_nisplus_parse_pwent (nisres, result, buffer, buflen);
nis_freeresult (nisres);
if (parse_res)
{
copy_pwd_changes (result, &ent->pwd, p2, p2len);
break;
}
}
return NSS_STATUS_SUCCESS;
}
static enum nss_status
getpwent_next_netgr (struct passwd *result, ent_t *ent, char *group,
char *buffer, size_t buflen)
{
if (use_nisplus)
return getpwent_next_nisplus_netgr (result, ent, group, buffer, buflen);
else
return getpwent_next_nis_netgr (result, ent, group, buffer, buflen);
}
static enum nss_status
getpwent_next_nisplus (struct passwd *result, ent_t *ent, char *buffer,
size_t buflen)
{
int parse_res;
size_t p2len;
char *p2;
if (ent->names == NULL)
{
ent->names = nis_getnames ("passwd.org_dir");
if (ent->names == NULL || ent->names[0] == NULL)
{
ent->nis = 0;
return NSS_STATUS_UNAVAIL;
}
}
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
__set_errno (ERANGE);
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
buflen -= p2len;
do
{
if (ent->first)
{
next_name:
ent->result = nis_first_entry(ent->names[ent->names_nr]);
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
ent->nis = 0;
give_pwd_free (&ent->pwd);
return niserr2nss (ent->result->status);
}
ent->first = FALSE;
}
else
{
nis_result *res;
res = nis_next_entry(ent->names[ent->names_nr],
&ent->result->cookie);
nis_freeresult (ent->result);
ent->result = res;
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
if ((ent->result->status == NIS_NOTFOUND) &&
ent->names[ent->names_nr + 1] != NULL)
{
nis_freeresult (ent->result);
ent->names_nr += 1;
goto next_name;
}
else
{
ent->nis = 0;
give_pwd_free (&ent->pwd);
return niserr2nss (ent->result->status);
}
}
}
parse_res = _nss_nisplus_parse_pwent (ent->result, result, buffer,
buflen);
if (parse_res &&
in_blacklist (result->pw_name, strlen (result->pw_name), ent))
parse_res = 0; /* if result->pw_name in blacklist,search next entry */
}
while (!parse_res);
copy_pwd_changes (result, &ent->pwd, p2, p2len);
return NSS_STATUS_SUCCESS;
}
static enum nss_status
getpwent_next_nis (struct passwd *result, ent_t *ent, char *buffer,
size_t buflen)
{
struct parser_data *data = (void *) buffer;
char *domain, *outkey, *outval, *p, *p2;
int outkeylen, outvallen, parse_res;
size_t p2len;
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
{
ent->nis = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_UNAVAIL;
}
p2len = pwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
__set_errno (ERANGE);
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
buflen -= p2len;
do
{
if (ent->first)
{
if (yp_first (domain, "passwd.byname", &outkey, &outkeylen,
&outval, &outvallen) != YPERR_SUCCESS)
{
ent->nis = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_UNAVAIL;
}
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
ent->first = FALSE;
}
else
{
if (yp_next (domain, "passwd.byname", ent->oldkey, ent->oldkeylen,
&outkey, &outkeylen, &outval, &outvallen)
!= YPERR_SUCCESS)
{
ent->nis = 0;
give_pwd_free (&ent->pwd);
return NSS_STATUS_NOTFOUND;
}
free (ent->oldkey);
ent->oldkey = outkey;
ent->oldkeylen = outkeylen;
}
/* Copy the found data to our buffer */
p = strncpy (buffer, outval, buflen);
/* ...and free the data. */
free (outval);
while (isspace (*p))
++p;
parse_res = _nss_files_parse_pwent (p, result, data, buflen);
if (parse_res &&
in_blacklist (result->pw_name, strlen (result->pw_name), ent))
parse_res = 0;
}
while (!parse_res);
copy_pwd_changes (result, &ent->pwd, p2, p2len);
return NSS_STATUS_SUCCESS;
}
/* This function handle the +user entrys in /etc/passwd */
static enum nss_status
getpwent_next_file_plususer (struct passwd *result, char *buffer,
size_t buflen)
{
struct parser_data *data = (void *) buffer;
struct passwd pwd;
int parse_res;
char *p;
size_t plen;
memset (&pwd, '\0', sizeof (struct passwd));
copy_pwd_changes (&pwd, result, NULL, 0);
plen = pwd_need_buflen (&pwd);
if (plen > buflen)
{
__set_errno (ERANGE);
return NSS_STATUS_TRYAGAIN;
}
p = buffer + (buflen - plen);
buflen -= plen;
if (use_nisplus) /* Do the NIS+ query here */
{
nis_result *res;
char buf[strlen (result->pw_name) + 24];
sprintf(buf, "[name=%s],passwd.org_dir",
&result->pw_name[1]);
res = nis_list(buf, EXPAND_NAME, 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_pwent (res, result, buffer, buflen);
nis_freeresult (res);
}
else /* Use NIS */
{
char *domain;
char *outval;
int outvallen;
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
return NSS_STATUS_TRYAGAIN;
if (yp_match (domain, "passwd.byname", &result->pw_name[1],
strlen (result->pw_name) - 1, &outval, &outvallen)
!= YPERR_SUCCESS)
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_pwent (p, result, data, buflen);
}
if (parse_res)
{
copy_pwd_changes (result, &pwd, p, plen);
give_pwd_free (&pwd);
/* We found the entry. */
return NSS_STATUS_SUCCESS;
}
else
{
/* Give buffer the old len back */
buflen += plen;
give_pwd_free (&pwd);
}
return NSS_STATUS_RETURN;
}
static enum nss_status
getpwent_next_file (struct passwd *result, ent_t *ent,
char *buffer, size_t buflen)
{
struct parser_data *data = (void *) buffer;
while (1)
{
char *p;
do
{
p = fgets (buffer, buflen, ent->stream);
if (p == NULL)
return NSS_STATUS_NOTFOUND;
/* 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. */
!_nss_files_parse_pwent (p, result, data, buflen));
if (result->pw_name[0] != '+' && result->pw_name[0] != '-')
/* This is a real entry. */
break;
/* -@netgroup */
if (result->pw_name[0] == '-' && result->pw_name[1] == '@'
&& result->pw_name[2] != '\0')
{
char buf2[1024];
char *user, *host, *domain;
struct __netgrent netgrdata;
bzero (&netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (&result->pw_name[2], &netgrdata);
while (__internal_getnetgrent_r (&host, &user, &domain,
&netgrdata, buf2, sizeof (buf2)))
{
if (user != NULL && user[0] != '-')
blacklist_store_name (user, ent);
}
__internal_endnetgrent (&netgrdata);
continue;
}
/* +@netgroup */
if (result->pw_name[0] == '+' && result->pw_name[1] == '@'
&& result->pw_name[2] != '\0')
{
int status;
ent->netgroup = TRUE;
ent->first = TRUE;
copy_pwd_changes (&ent->pwd, result, NULL, 0);
status = getpwent_next_netgr (result, ent, &result->pw_name[2],
buffer, buflen);
if (status == NSS_STATUS_RETURN)
continue;
else
return status;
}
/* -user */
if (result->pw_name[0] == '-' && result->pw_name[1] != '\0'
&& result->pw_name[1] != '@')
{
blacklist_store_name (&result->pw_name[1], ent);
continue;
}
/* +user */
if (result->pw_name[0] == '+' && result->pw_name[1] != '\0'
&& result->pw_name[1] != '@')
{
enum nss_status status;
status = getpwent_next_file_plususer (result, buffer, buflen);
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
break;
else
if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
continue;
else
return status;
}
/* +:... */
if (result->pw_name[0] == '+' && result->pw_name[1] == '\0')
{
ent->nis = TRUE;
ent->first = TRUE;
copy_pwd_changes (&ent->pwd, result, NULL, 0);
if (use_nisplus)
return getpwent_next_nisplus (result, ent, buffer, buflen);
else
return getpwent_next_nis (result, ent, buffer, buflen);
}
}
return NSS_STATUS_SUCCESS;
}
static enum nss_status
internal_getpwent_r (struct passwd *pw, ent_t *ent, char *buffer,
size_t buflen)
{
if (ent->netgroup)
{
int status;
/* We are searching members in a netgroup */
/* Since this is not the first call, we don't need the group name */
status = getpwent_next_netgr (pw, ent, NULL, buffer, buflen);
if (status == NSS_STATUS_RETURN)
return getpwent_next_file (pw, ent, buffer, buflen);
else
return status;
}
else if (ent->nis)
{
if (use_nisplus)
return getpwent_next_nisplus (pw, ent, buffer, buflen);
else
return getpwent_next_nis (pw, ent, buffer, buflen);
}
else
return getpwent_next_file (pw, ent, buffer, buflen);
}
enum nss_status
_nss_compat_getpwent_r (struct passwd *pwd, char *buffer,
size_t buflen)
{
enum nss_status status = NSS_STATUS_SUCCESS;
__libc_lock_lock (lock);
if (ni == NULL)
{
__nss_database_lookup ("passwd_compat", NULL, "nis", &ni);
use_nisplus = (strcmp (ni->name, "nisplus") == 0);
}
/* Be prepared that the setpwent function was not called before. */
if (ext_ent.stream == NULL)
status = internal_setpwent (&ext_ent);
if (status == NSS_STATUS_SUCCESS)
status = internal_getpwent_r (pwd, &ext_ent, buffer, buflen);
__libc_lock_unlock (lock);
return status;
}
enum nss_status
_nss_compat_getpwnam_r (const char *name, struct passwd *pwd,
char *buffer, size_t buflen)
{
ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0},
{NULL, NULL, 0, 0, NULL, NULL, NULL}};
enum nss_status status;
if (name[0] == '-' || name[0] == '+')
return NSS_STATUS_NOTFOUND;
__libc_lock_lock (lock);
if (ni == NULL)
{
__nss_database_lookup ("passwd_compat", NULL, "nis", &ni);
use_nisplus = (strcmp (ni->name, "nisplus") == 0);
}
__libc_lock_unlock (lock);
status = internal_setpwent (&ent);
if (status != NSS_STATUS_SUCCESS)
return status;
while ((status = internal_getpwent_r (pwd, &ent, buffer, buflen))
== NSS_STATUS_SUCCESS)
if (strcmp (pwd->pw_name, name) == 0)
break;
internal_endpwent (&ent);
return status;
}
enum nss_status
_nss_compat_getpwuid_r (uid_t uid, struct passwd *pwd,
char *buffer, size_t buflen)
{
ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, 0, NULL, {NULL, 0, 0},
{NULL, NULL, 0, 0, NULL, NULL, NULL}};
enum nss_status status;
__libc_lock_lock (lock);
if (ni == NULL)
{
__nss_database_lookup ("passwd_compat", NULL, "nis", &ni);
use_nisplus = (strcmp (ni->name, "nisplus") == 0);
}
__libc_lock_unlock (lock);
status = internal_setpwent (&ent);
if (status != NSS_STATUS_SUCCESS)
return status;
while ((status = internal_getpwent_r (pwd, &ent, buffer, buflen))
== NSS_STATUS_SUCCESS)
if (pwd->pw_uid == uid && pwd->pw_name[0] != '+' && pwd->pw_name[0] != '-')
break;
internal_endpwent (&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;
}