338 lines
9.4 KiB
C
338 lines
9.4 KiB
C
/* Copyright (C) 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>, 1997.
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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 <pwd.h>
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#include <ctype.h>
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#include <errno.h>
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#include <string.h>
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#include <rpcsvc/nis.h>
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#include "nisplus-parser.h"
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#define NISENTRYVAL(idx,col,res) \
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((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
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#define NISENTRYLEN(idx,col,res) \
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((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
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int
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_nss_nisplus_parse_pwent (nis_result *result, struct passwd *pw,
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char *buffer, size_t buflen)
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{
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char *first_unused = buffer;
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size_t room_left = buflen;
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if (result == NULL)
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return 0;
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if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
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result->objects.objects_len != 1 ||
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__type_of (result->objects.objects_val) != ENTRY_OBJ ||
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strcmp(result->objects.objects_val->EN_data.en_type,
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"passwd_tbl") != 0 ||
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result->objects.objects_val->EN_data.en_cols.en_cols_len < 7)
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return 0;
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if (NISENTRYLEN (0, 0, result) >= room_left)
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{
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/* The line is too long for our buffer. */
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no_more_room:
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__set_errno (ERANGE);
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return -1;
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}
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strncpy (first_unused, NISENTRYVAL(0, 0, result),
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NISENTRYLEN (0, 0, result));
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first_unused[NISENTRYLEN(0, 0, result)] = '\0';
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pw->pw_name = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 1, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL(0, 1, result),
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NISENTRYLEN (0, 1, result));
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first_unused[NISENTRYLEN(0, 1, result)] = '\0';
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pw->pw_passwd = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 2, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (0, 2, result),
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NISENTRYLEN (0, 2, result));
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first_unused[NISENTRYLEN(0, 2, result)] = '\0';
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pw->pw_uid = atoi (first_unused);
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 3, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL(0, 3, result),
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NISENTRYLEN (0, 3, result));
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first_unused[NISENTRYLEN(0, 3, result)] = '\0';
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pw->pw_gid = atoi (first_unused);
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 4, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL(0, 4, result),
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NISENTRYLEN (0, 4, result));
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first_unused[NISENTRYLEN(0, 4, result)] = '\0';
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pw->pw_gecos = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 5, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (0, 5, result),
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NISENTRYLEN (0, 5, result));
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first_unused[NISENTRYLEN(0, 5, result)] = '\0';
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pw->pw_dir = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 6, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (0, 6, result),
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NISENTRYLEN (0, 6, result));
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first_unused[NISENTRYLEN (0, 6, result)] = '\0';
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pw->pw_shell = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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return 1;
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}
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int
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_nss_nisplus_parse_grent (nis_result *result, u_long entry,
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struct group *gr, char *buffer, size_t buflen)
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{
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char *first_unused = buffer;
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size_t room_left = buflen;
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char *line;
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int count;
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if (result == NULL)
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return 0;
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if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
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__type_of(result->objects.objects_val) != ENTRY_OBJ ||
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strcmp (result->objects.objects_val[entry].EN_data.en_type,
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"group_tbl") != 0 ||
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result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 4)
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return 0;
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if (NISENTRYLEN (entry, 0, result) >= room_left)
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{
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/* The line is too long for our buffer. */
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no_more_room:
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__set_errno (ERANGE);
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return -1;
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}
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strncpy (first_unused, NISENTRYVAL (entry, 0, result),
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NISENTRYLEN (entry, 0, result));
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first_unused[NISENTRYLEN (entry, 0, result)] = '\0';
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gr->gr_name = first_unused;
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room_left -= (strlen (first_unused) + 1);
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first_unused += strlen (first_unused) + 1;
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if (NISENTRYLEN (entry, 1, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (entry, 1, result),
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NISENTRYLEN (entry, 1, result));
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first_unused[NISENTRYLEN (entry, 1, result)] = '\0';
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gr->gr_passwd = first_unused;
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room_left -= (strlen (first_unused) + 1);
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first_unused += strlen (first_unused) + 1;
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if (NISENTRYLEN (entry, 2, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (entry, 2, result),
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NISENTRYLEN (entry, 2, result));
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first_unused[NISENTRYLEN (entry, 2, result)] = '\0';
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gr->gr_gid = atoi (first_unused);
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room_left -= (strlen (first_unused) + 1);
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first_unused += strlen (first_unused) + 1;
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if (NISENTRYLEN (entry, 3, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (entry, 3, result),
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NISENTRYLEN (entry, 3, result));
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first_unused[NISENTRYLEN (entry, 3, result)] = '\0';
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line = first_unused;
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room_left -= (strlen (line) + 1);
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first_unused += strlen (line) + 1;
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/* Adjust the pointer so it is aligned for
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storing pointers. */
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first_unused += __alignof__ (char *) - 1;
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first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
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gr->gr_mem = (char **) first_unused;
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count = 0;
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while (*line != '\0')
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{
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/* Skip leading blanks. */
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while (isspace (*line))
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++line;
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if (*line == '\0')
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break;
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if (room_left < sizeof (char *))
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goto no_more_room;
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room_left -= sizeof (char *);
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gr->gr_mem[count] = line;
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while (*line != '\0' && *line != ',' && !isspace(*line))
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++line;
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if (line != gr->gr_mem[count])
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{
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if (*line != '\0')
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{
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*line = '\0';
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++line;
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}
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++count;
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}
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else
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gr->gr_mem[count] = NULL;
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}
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if (room_left < sizeof (char *))
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goto no_more_room;
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room_left -= sizeof (char *);
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gr->gr_mem[count] = NULL;
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return 1;
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}
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int
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_nss_nisplus_parse_spent (nis_result *result, struct spwd *sp,
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char *buffer, size_t buflen)
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{
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char *first_unused = buffer;
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size_t room_left = buflen;
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if (result == NULL)
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return 0;
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if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
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result->objects.objects_len != 1 ||
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__type_of(result->objects.objects_val) != ENTRY_OBJ ||
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strcmp (result->objects.objects_val->EN_data.en_type,
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"passwd_tbl") != 0 ||
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result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 8)
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return 0;
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if (NISENTRYLEN(0, 0, result) >= room_left)
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{
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/* The line is too long for our buffer. */
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no_more_room:
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__set_errno (ERANGE);
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return -1;
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}
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strncpy (first_unused, NISENTRYVAL (0, 0, result),
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NISENTRYLEN (0, 0, result));
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first_unused[NISENTRYLEN(0, 0, result)] = '\0';
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sp->sp_namp = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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if (NISENTRYLEN(0, 1, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (0, 1, result),
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NISENTRYLEN (0, 1, result));
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first_unused[NISENTRYLEN(0, 1, result)] = '\0';
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sp->sp_pwdp = first_unused;
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room_left -= (strlen (first_unused) +1);
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first_unused += strlen (first_unused) +1;
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sp->sp_lstchg = sp->sp_min = sp->sp_max = sp->sp_warn = sp->sp_inact =
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sp->sp_expire = sp->sp_flag = -1;
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if (NISENTRYLEN (0, 7, result) > 0)
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{
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char *line, *cp;
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line = NISENTRYVAL (0, 7, result);
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cp = strchr (line, ':');
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if (cp == NULL)
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return 0;
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*cp++ = '\0';
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sp->sp_lstchg = atol (line);
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line = cp;
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cp = strchr (line, ':');
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if (cp == NULL)
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return 0;
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*cp++ = '\0';
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sp->sp_min = atol(line);
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line = cp;
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cp = strchr (line, ':');
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if (cp == NULL)
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return 0;
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*cp++ = '\0';
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sp->sp_max = atol(line);
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line = cp;
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cp = strchr (line, ':');
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if (cp == NULL)
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return 0;
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*cp++ = '\0';
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sp->sp_warn = atol(line);
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line = cp;
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cp = strchr (line, ':');
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if (cp == NULL)
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return 0;
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*cp++ = '\0';
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sp->sp_inact = atol(line);
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line = cp;
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cp = strchr (line, ':');
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if (cp == NULL)
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return 0;
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*cp++ = '\0';
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sp->sp_expire = atol(line);
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line = cp;
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if (line == NULL)
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return 0;
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sp->sp_flag = atol(line);
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}
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return 1;
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}
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