[thirdparty/glibc.git] / nis / nss_nisplus / nisplus-spwd.c

/* Copyright (C) 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.

   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 <errno.h>
#include <shadow.h>
#include <string.h>
#include <libc-lock.h>
#include <rpcsvc/nis.h>
#include <rpcsvc/nislib.h>

#include "nss-nisplus.h"

__libc_lock_define_initialized (static, lock)

static nis_result *result = NULL;
static nis_name *names = NULL;

#define NISENTRYVAL(idx,col,res) \
        ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)

#define NISENTRYLEN(idx,col,res) \
        ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)

int
_nss_nisplus_parse_spent (nis_result *result, struct spwd *sp,
			  char *buffer, size_t buflen)
{
  char *first_unused = buffer;
  size_t room_left = buflen;
  char *line, *cp;

  if (result == NULL)
    return 0;

  if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
      result->objects.objects_len != 1 ||
      result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
      strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
	      "passwd_tbl") != 0 ||
      result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 8)
    return 0;

  if (NISENTRYLEN(0, 0, result) >= room_left)
    {
      /* The line is too long for our buffer.  */
    no_more_room:
      __set_errno (ERANGE);
      return 0;
    }

  strncpy (first_unused, NISENTRYVAL (0, 0, result),
	   NISENTRYLEN (0, 0, result));
  first_unused[NISENTRYLEN(0, 0, result)] = '\0';
  sp->sp_namp = first_unused;
  room_left -= (strlen (first_unused) +1);
  first_unused += strlen (first_unused) +1;

  if (NISENTRYLEN(0, 1, result) >= room_left)
    goto no_more_room;

  strncpy (first_unused, NISENTRYVAL (0, 1, result),
	   NISENTRYLEN (0, 1, result));
  first_unused[NISENTRYLEN(0, 1, result)] = '\0';
  sp->sp_pwdp = first_unused;
  room_left -= (strlen (first_unused) +1);
  first_unused += strlen (first_unused) +1;

  sp->sp_lstchg = sp->sp_min = sp->sp_max = sp->sp_warn = sp->sp_inact =
    sp->sp_expire = sp->sp_flag = -1;

  line = NISENTRYVAL (0, 7, result);
  cp = strchr (line, ':');
  if (cp == NULL)
    return 0;
  *cp++ = '\0';
  sp->sp_lstchg = atol (line);

  line = cp;
  cp = strchr (line, ':');
  if (cp == NULL)
    return 0;
  *cp++ = '\0';
  sp->sp_min = atol(line);

  line = cp;
  cp = strchr (line, ':');
  if (cp == NULL)
    return 0;
  *cp++ = '\0';
  sp->sp_max = atol(line);

  line = cp;
  cp = strchr (line, ':');
  if (cp == NULL)
    return 0;
  *cp++ = '\0';
  sp->sp_warn = atol(line);

  line = cp;
  cp = strchr (line, ':');
  if (cp == NULL)
    return 0;
  *cp++ = '\0';
  sp->sp_inact = atol(line);

  line = cp;
  cp = strchr (line, ':');
  if (cp == NULL)
    return 0;
  *cp++ = '\0';
  sp->sp_expire = atol(line);

  line = cp;
  if (line == NULL)
    return 0;
  sp->sp_flag = atol(line);

  return 1;
}

enum nss_status
_nss_nisplus_setspent (void)
{
  __libc_lock_lock (lock);

  if (result)
    nis_freeresult (result);
  result = NULL;
  if (names)
    {
      nis_freenames (names);
      names = NULL;
    }

  __libc_lock_unlock (lock);

  return NSS_STATUS_SUCCESS;
}

enum nss_status
_nss_nisplus_endspent (void)
{
  __libc_lock_lock (lock);

  if (result)
    nis_freeresult (result);
  result = NULL;
  if (names)
    {
      nis_freenames (names);
      names = NULL;
    }

  __libc_lock_unlock (lock);

  return NSS_STATUS_SUCCESS;
}

static enum nss_status
internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen)
{
  int parse_res;

  /* Get the next entry until we found a correct one. */
  do
    {
      if (result == NULL)
	{
	  names = nis_getnames ("passwd.org_dir");
	  if (names == NULL || names[0] == NULL)
	    return NSS_STATUS_UNAVAIL;

	  result = nis_first_entry (names[0]);
	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	    return niserr2nss (result->status);
	}
      else
	{
	  nis_result *res;

	  res = nis_next_entry (names[0], &result->cookie);
	  nis_freeresult (result);
	  result = res;
	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	    return niserr2nss (result->status);
	}

      parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen);
    } while (!parse_res);

  return NSS_STATUS_SUCCESS;
}

enum nss_status
_nss_nisplus_getspent_r (struct spwd *result, char *buffer, size_t buflen)
{
  int status;

  __libc_lock_lock (lock);

  status = internal_nisplus_getspent_r (result, buffer, buflen);

  __libc_lock_unlock (lock);

  return status;
}

enum nss_status
_nss_nisplus_getspnam_r (const char *name, struct spwd *sp,
		     char *buffer, size_t buflen)
{
  int parse_res;

  if (name == NULL || strlen (name) > 8)
    return NSS_STATUS_NOTFOUND;
  else
    {
      nis_result *result;
      char buf[strlen (name) + 24];

      sprintf (buf, "[name=%s],passwd.org_dir", name);

      result = nis_list (buf, EXPAND_NAME, NULL, NULL);

      if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	{
	  enum nss_status status = niserr2nss (result->status);

	  nis_freeresult (result);
	  return status;
	}

      parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen);

      nis_freeresult (result);

      if (parse_res)
	return NSS_STATUS_SUCCESS;

      if (!parse_res && errno == ERANGE)
	return NSS_STATUS_TRYAGAIN;
      else
	return NSS_STATUS_NOTFOUND;
    }
}
Commit	Line	Data
e61abf83 UD	1	/* Copyright (C) 1997 Free Software Foundation, Inc.
	2	This file is part of the GNU C Library.
	3	Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Library General Public License as
	7	published by the Free Software Foundation; either version 2 of the
	8	License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Library General Public License for more details.
	14
	15	You should have received a copy of the GNU Library General Public
	16	License along with the GNU C Library; see the file COPYING.LIB. If not,
	17	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	18	Boston, MA 02111-1307, USA. */
	19
	20	#include <nss.h>
	21	#include <errno.h>
	22	#include <shadow.h>
	23	#include <string.h>
	24	#include <libc-lock.h>
	25	#include <rpcsvc/nis.h>
	26	#include <rpcsvc/nislib.h>
	27
	28	#include "nss-nisplus.h"
	29
	30	__libc_lock_define_initialized (static, lock)
	31
	32	static nis_result *result = NULL;
	33	static nis_name *names = NULL;
	34
	35	#define NISENTRYVAL(idx,col,res) \
	36	((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
	37
	38	#define NISENTRYLEN(idx,col,res) \
	39	((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
	40
26dee9c4	41	int
e61abf83 UD	42	_nss_nisplus_parse_spent (nis_result result, struct spwd sp,
	43	char *buffer, size_t buflen)
	44	{
	45	char *first_unused = buffer;
	46	size_t room_left = buflen;
	47	char line, cp;
	48
	49	if (result == NULL)
26dee9c4	50	return 0;
e61abf83 UD	51
	52	if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) \|\|
	53	result->objects.objects_len != 1 \|\|
	54	result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ \|\|
	55	strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
	56	"passwd_tbl") != 0 \|\|
	57	result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 8)
26dee9c4	58	return 0;
e61abf83 UD	59
	60	if (NISENTRYLEN(0, 0, result) >= room_left)
	61	{
	62	/* The line is too long for our buffer. */
	63	no_more_room:
	64	__set_errno (ERANGE);
26dee9c4	65	return 0;
e61abf83 UD	66	}
	67
	68	strncpy (first_unused, NISENTRYVAL (0, 0, result),
	69	NISENTRYLEN (0, 0, result));
	70	first_unused[NISENTRYLEN(0, 0, result)] = '\0';
	71	sp->sp_namp = first_unused;
	72	room_left -= (strlen (first_unused) +1);
	73	first_unused += strlen (first_unused) +1;
	74
	75	if (NISENTRYLEN(0, 1, result) >= room_left)
	76	goto no_more_room;
	77
	78	strncpy (first_unused, NISENTRYVAL (0, 1, result),
	79	NISENTRYLEN (0, 1, result));
	80	first_unused[NISENTRYLEN(0, 1, result)] = '\0';
	81	sp->sp_pwdp = first_unused;
	82	room_left -= (strlen (first_unused) +1);
	83	first_unused += strlen (first_unused) +1;
	84
	85	sp->sp_lstchg = sp->sp_min = sp->sp_max = sp->sp_warn = sp->sp_inact =
	86	sp->sp_expire = sp->sp_flag = -1;
	87
	88	line = NISENTRYVAL (0, 7, result);
	89	cp = strchr (line, ':');
	90	if (cp == NULL)
	91	return 0;
	92	*cp++ = '\0';
1f205a47	93	sp->sp_lstchg = atol (line);
e61abf83 UD	94
	95	line = cp;
	96	cp = strchr (line, ':');
	97	if (cp == NULL)
	98	return 0;
	99	*cp++ = '\0';
1f205a47	100	sp->sp_min = atol(line);
e61abf83 UD	101
	102	line = cp;
	103	cp = strchr (line, ':');
	104	if (cp == NULL)
	105	return 0;
	106	*cp++ = '\0';
1f205a47	107	sp->sp_max = atol(line);
e61abf83 UD	108
	109	line = cp;
	110	cp = strchr (line, ':');
	111	if (cp == NULL)
	112	return 0;
	113	*cp++ = '\0';
1f205a47	114	sp->sp_warn = atol(line);
e61abf83 UD	115
	116	line = cp;
	117	cp = strchr (line, ':');
	118	if (cp == NULL)
	119	return 0;
	120	*cp++ = '\0';
1f205a47	121	sp->sp_inact = atol(line);
e61abf83 UD	122
	123	line = cp;
	124	cp = strchr (line, ':');
	125	if (cp == NULL)
	126	return 0;
	127	*cp++ = '\0';
1f205a47	128	sp->sp_expire = atol(line);
e61abf83 UD	129
	130	line = cp;
	131	if (line == NULL)
	132	return 0;
1f205a47	133	sp->sp_flag = atol(line);
e61abf83 UD	134
	135	return 1;
	136	}
	137
	138	enum nss_status
	139	_nss_nisplus_setspent (void)
	140	{
	141	__libc_lock_lock (lock);
	142
	143	if (result)
	144	nis_freeresult (result);
	145	result = NULL;
	146	if (names)
	147	{
	148	nis_freenames (names);
	149	names = NULL;
	150	}
	151
	152	__libc_lock_unlock (lock);
	153
	154	return NSS_STATUS_SUCCESS;
	155	}
	156
	157	enum nss_status
	158	_nss_nisplus_endspent (void)
	159	{
	160	__libc_lock_lock (lock);
	161
	162	if (result)
	163	nis_freeresult (result);
	164	result = NULL;
	165	if (names)
	166	{
	167	nis_freenames (names);
	168	names = NULL;
	169	}
	170
	171	__libc_lock_unlock (lock);
	172
	173	return NSS_STATUS_SUCCESS;
	174	}
	175
	176	static enum nss_status
	177	internal_nisplus_getspent_r (struct spwd sp, char buffer, size_t buflen)
	178	{
	179	int parse_res;
	180
	181	/* Get the next entry until we found a correct one. */
	182	do
	183	{
	184	if (result == NULL)
	185	{
	186	names = nis_getnames ("passwd.org_dir");
	187	if (names == NULL \|\| names[0] == NULL)
	188	return NSS_STATUS_UNAVAIL;
	189
	190	result = nis_first_entry (names[0]);
	191	if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	192	return niserr2nss (result->status);
	193	}
	194	else
	195	{
	196	nis_result *res;
	197
198	res = nis_next_entry (names[0], &result->cookie);
199	nis_freeresult (result);
200	result = res;
201	if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
202	return niserr2nss (result->status);
203	}
204
205	parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen);
206	} while (!parse_res);
207
208	return NSS_STATUS_SUCCESS;
209	}
210
211	enum nss_status
212	_nss_nisplus_getspent_r (struct spwd result, char buffer, size_t buflen)
213	{
214	int status;
215
216	__libc_lock_lock (lock);
217
218	status = internal_nisplus_getspent_r (result, buffer, buflen);
219
220	__libc_lock_unlock (lock);
221
222	return status;
223	}
224
225	enum nss_status
226	_nss_nisplus_getspnam_r (const char name, struct spwd sp,
227	char *buffer, size_t buflen)
228	{
229	int parse_res;
230
231	if (name == NULL \|\| strlen (name) > 8)
232	return NSS_STATUS_NOTFOUND;
233	else
234	{
235	nis_result *result;
236	char buf[strlen (name) + 24];
237
238	sprintf (buf, "[name=%s],passwd.org_dir", name);
239
240	result = nis_list (buf, EXPAND_NAME, NULL, NULL);
241
242	if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
243	{
244	enum nss_status status = niserr2nss (result->status);
245
246	nis_freeresult (result);
247	return status;
248	}
249
250	parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen);
251
252	nis_freeresult (result);
253
254	if (parse_res)
255	return NSS_STATUS_SUCCESS;
256
257	if (!parse_res && errno == ERANGE)
258	return NSS_STATUS_TRYAGAIN;
259	else
260	return NSS_STATUS_NOTFOUND;
261	}
262	}