mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 06:20:06 +00:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
376 lines
9.8 KiB
C
376 lines
9.8 KiB
C
/* Copyright (C) 1997-2019 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <pwd.h>
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <rpcsvc/nis.h>
|
|
|
|
#include "nisplus-parser.h"
|
|
|
|
#define NISENTRYVAL(idx, col, res) \
|
|
(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val)
|
|
|
|
#define NISENTRYLEN(idx, col, res) \
|
|
(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
|
|
|
|
#define NISOBJVAL(col, obj) \
|
|
((obj)->EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val)
|
|
|
|
#define NISOBJLEN(col, obj) \
|
|
((obj)->EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
|
|
|
|
|
|
int
|
|
_nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
|
|
|| NIS_RES_NUMOBJ (result) != 1
|
|
|| __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ
|
|
|| strcmp (NIS_RES_OBJECT (result)->EN_data.en_type, "passwd_tbl") != 0
|
|
|| NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 7)
|
|
return 0;
|
|
|
|
nis_object *obj = NIS_RES_OBJECT (result);
|
|
char *first_unused = buffer;
|
|
size_t room_left = buflen;
|
|
size_t len;
|
|
|
|
if (NISOBJLEN (0, obj) >= room_left)
|
|
{
|
|
/* The line is too long for our buffer. */
|
|
no_more_room:
|
|
*errnop = ERANGE;
|
|
return -1;
|
|
}
|
|
|
|
strncpy (first_unused, NISOBJVAL (0, obj), NISOBJLEN (0, obj));
|
|
first_unused[NISOBJLEN (0, obj)] = '\0';
|
|
len = strlen (first_unused);
|
|
if (len == 0) /* No name ? Should never happen, database is corrupt */
|
|
return 0;
|
|
pw->pw_name = first_unused;
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
if (NISOBJLEN (1, obj) >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, NISOBJVAL (1, obj), NISOBJLEN (1, obj));
|
|
first_unused[NISOBJLEN (1, obj)] = '\0';
|
|
pw->pw_passwd = first_unused;
|
|
len = strlen (first_unused);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
char *numstr = NISOBJVAL (2, obj);
|
|
len = NISOBJLEN (2, obj);
|
|
if (len == 0 || numstr[len - 1] != '\0')
|
|
{
|
|
if (len >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, numstr, len);
|
|
first_unused[len] = '\0';
|
|
numstr = first_unused;
|
|
}
|
|
if (numstr[0] == '\0')
|
|
/* If we don't have a uid, it's an invalid shadow entry. */
|
|
return 0;
|
|
pw->pw_uid = strtoul (numstr, NULL, 10);
|
|
|
|
numstr = NISOBJVAL (3, obj);
|
|
len = NISOBJLEN (3, obj);
|
|
if (len == 0 || numstr[len - 1] != '\0')
|
|
{
|
|
if (len >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, numstr, len);
|
|
first_unused[len] = '\0';
|
|
numstr = first_unused;
|
|
}
|
|
if (numstr[0] == '\0')
|
|
/* If we don't have a gid, it's an invalid shadow entry. */
|
|
return 0;
|
|
pw->pw_gid = strtoul (numstr, NULL, 10);
|
|
|
|
if (NISOBJLEN(4, obj) >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, NISOBJVAL (4, obj), NISOBJLEN (4, obj));
|
|
first_unused[NISOBJLEN (4, obj)] = '\0';
|
|
pw->pw_gecos = first_unused;
|
|
len = strlen (first_unused);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
if (NISOBJLEN (5, obj) >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, NISOBJVAL (5, obj), NISOBJLEN (5, obj));
|
|
first_unused[NISOBJLEN (5, obj)] = '\0';
|
|
pw->pw_dir = first_unused;
|
|
len = strlen (first_unused);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
if (NISOBJLEN (6, obj) >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, NISOBJVAL (6, obj), NISOBJLEN (6, obj));
|
|
first_unused[NISOBJLEN (6, obj)] = '\0';
|
|
pw->pw_shell = first_unused;
|
|
len = strlen (first_unused);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int
|
|
_nss_nisplus_parse_grent (nis_result *result, struct group *gr,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
|
|
|| __type_of(NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ
|
|
|| strcmp (NIS_RES_OBJECT (result)[0].EN_data.en_type, "group_tbl") != 0
|
|
|| NIS_RES_OBJECT (result)[0].EN_data.en_cols.en_cols_len < 4)
|
|
return 0;
|
|
|
|
nis_object *obj = NIS_RES_OBJECT (result);
|
|
char *first_unused = buffer;
|
|
size_t room_left = buflen;
|
|
char *line;
|
|
int count;
|
|
size_t len;
|
|
|
|
if (NISOBJLEN (0, obj) >= room_left)
|
|
{
|
|
/* The line is too long for our buffer. */
|
|
no_more_room:
|
|
*errnop = ERANGE;
|
|
return -1;
|
|
}
|
|
|
|
strncpy (first_unused, NISOBJVAL (0, obj), NISOBJLEN (0, obj));
|
|
first_unused[NISOBJLEN (0, obj)] = '\0';
|
|
len = strlen (first_unused);
|
|
if (len == 0) /* group table is corrupt */
|
|
return 0;
|
|
gr->gr_name = first_unused;
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
if (NISOBJLEN (1, obj) >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, NISOBJVAL (1, obj), NISOBJLEN (1, obj));
|
|
first_unused[NISOBJLEN (1, obj)] = '\0';
|
|
gr->gr_passwd = first_unused;
|
|
len = strlen (first_unused);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
char *numstr = NISOBJVAL (2, obj);
|
|
len = NISOBJLEN (2, obj);
|
|
if (len == 0 || numstr[len - 1] != '\0')
|
|
{
|
|
if (len >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, numstr, len);
|
|
first_unused[len] = '\0';
|
|
numstr = first_unused;
|
|
}
|
|
if (numstr[0] == '\0')
|
|
/* We should always have a gid. */
|
|
return 0;
|
|
gr->gr_gid = strtoul (numstr, NULL, 10);
|
|
|
|
if (NISOBJLEN (3, obj) >= room_left)
|
|
goto no_more_room;
|
|
|
|
strncpy (first_unused, NISOBJVAL (3, obj), NISOBJLEN (3, obj));
|
|
first_unused[NISOBJLEN (3, obj)] = '\0';
|
|
line = first_unused;
|
|
len = strlen (line);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
/* Adjust the pointer so it is aligned for
|
|
storing pointers. */
|
|
size_t adjust = ((__alignof__ (char *)
|
|
- (first_unused - (char *) 0) % __alignof__ (char *))
|
|
% __alignof__ (char *));
|
|
if (room_left < adjust)
|
|
goto no_more_room;
|
|
first_unused += adjust;
|
|
room_left -= adjust;
|
|
gr->gr_mem = (char **) first_unused;
|
|
|
|
count = 0;
|
|
while (*line != '\0')
|
|
{
|
|
/* Skip leading blanks. */
|
|
while (isspace (*line))
|
|
++line;
|
|
|
|
if (*line == '\0')
|
|
break;
|
|
|
|
if (room_left < sizeof (char *))
|
|
goto no_more_room;
|
|
room_left -= sizeof (char *);
|
|
gr->gr_mem[count++] = line;
|
|
|
|
while (*line != '\0' && *line != ',' && !isspace (*line))
|
|
++line;
|
|
|
|
if (*line == ',' || isspace (*line))
|
|
{
|
|
int is = isspace (*line);
|
|
|
|
*line++ = '\0';
|
|
if (is)
|
|
while (*line != '\0' && (*line == ',' || isspace (*line)))
|
|
++line;
|
|
}
|
|
}
|
|
if (room_left < sizeof (char *))
|
|
goto no_more_room;
|
|
room_left -= sizeof (char *);
|
|
gr->gr_mem[count] = NULL;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int
|
|
_nss_nisplus_parse_spent (nis_result *result, struct spwd *sp,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
char *first_unused = buffer;
|
|
size_t room_left = buflen;
|
|
size_t len;
|
|
|
|
if (result == NULL)
|
|
return 0;
|
|
|
|
if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
|
|
|| NIS_RES_NUMOBJ (result) != 1
|
|
|| __type_of(NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ
|
|
|| strcmp (NIS_RES_OBJECT (result)->EN_data.en_type, "passwd_tbl") != 0
|
|
|| NIS_RES_OBJECT (result)->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:
|
|
*errnop = ERANGE;
|
|
return -1;
|
|
}
|
|
|
|
strncpy (first_unused, NISENTRYVAL (0, 0, result),
|
|
NISENTRYLEN (0, 0, result));
|
|
first_unused[NISENTRYLEN (0, 0, result)] = '\0';
|
|
len = strlen (first_unused);
|
|
if (len == 0)
|
|
return 0;
|
|
sp->sp_namp = first_unused;
|
|
room_left -= len + 1;
|
|
first_unused += len + 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;
|
|
len = strlen (first_unused);
|
|
room_left -= len + 1;
|
|
first_unused += len + 1;
|
|
|
|
sp->sp_lstchg = sp->sp_min = sp->sp_max = sp->sp_warn = sp->sp_inact =
|
|
sp->sp_expire = -1;
|
|
sp->sp_flag = ~0ul;
|
|
|
|
if (NISENTRYLEN (0, 7, result) > 0)
|
|
{
|
|
char *line = NISENTRYVAL (0, 7, result);
|
|
char *cp = strchr (line, ':');
|
|
if (cp == NULL)
|
|
return 1;
|
|
*cp++ = '\0';
|
|
if (*line)
|
|
sp->sp_lstchg = atol (line);
|
|
|
|
line = cp;
|
|
cp = strchr (line, ':');
|
|
if (cp == NULL)
|
|
return 1;
|
|
*cp++ = '\0';
|
|
if (*line)
|
|
sp->sp_min = atol (line);
|
|
|
|
line = cp;
|
|
cp = strchr (line, ':');
|
|
if (cp == NULL)
|
|
return 1;
|
|
*cp++ = '\0';
|
|
if (*line)
|
|
sp->sp_max = atol (line);
|
|
|
|
line = cp;
|
|
cp = strchr (line, ':');
|
|
if (cp == NULL)
|
|
return 1;
|
|
*cp++ = '\0';
|
|
if (*line)
|
|
sp->sp_warn = atol (line);
|
|
|
|
line = cp;
|
|
cp = strchr (line, ':');
|
|
if (cp == NULL)
|
|
return 1;
|
|
*cp++ = '\0';
|
|
if (*line)
|
|
sp->sp_inact = atol (line);
|
|
|
|
line = cp;
|
|
cp = strchr (line, ':');
|
|
if (cp == NULL)
|
|
return 1;
|
|
*cp++ = '\0';
|
|
if (*line)
|
|
sp->sp_expire = atol (line);
|
|
|
|
line = cp;
|
|
if (line == NULL)
|
|
return 1;
|
|
if (*line)
|
|
sp->sp_flag = atol (line);
|
|
}
|
|
|
|
return 1;
|
|
}
|