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glibc/nis/nss_nisplus/nisplus-parser.c
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/* Copyright (C) 1997, 1999, 2004 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, write to the Free | |
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
02111-1307 USA. */ | |
#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) \ | |
((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) | |
#define NISENTRYLEN(idx,col,res) \ | |
((res)->objects.objects_val[(idx)].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) | |
{ | |
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) | |
|| result->objects.objects_len != 1 | |
|| __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ | |
|| strcmp (result->objects.objects_val->EN_data.en_type, | |
"passwd_tbl") != 0 | |
|| result->objects.objects_val->EN_data.en_cols.en_cols_len < 7) | |
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) /* No name ? Should never happen, database is corrupt */ | |
return 0; | |
pw->pw_name = 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'; | |
pw->pw_passwd = first_unused; | |
len = strlen (first_unused); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
if (NISENTRYLEN(0, 2, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (0, 2, result), | |
NISENTRYLEN (0, 2, result)); | |
first_unused[NISENTRYLEN (0, 2, result)] = '\0'; | |
len = strlen (first_unused); | |
if (len == 0) /* If we don't have a uid, it's an invalid shadow entry */ | |
return 0; | |
pw->pw_uid = strtoul (first_unused, NULL, 10); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
if (NISENTRYLEN (0, 3, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (0, 3, result), | |
NISENTRYLEN (0, 3, result)); | |
first_unused[NISENTRYLEN (0, 3, result)] = '\0'; | |
len = strlen (first_unused); | |
if (len == 0) /* If we don't have a gid, it's an invalid shadow entry */ | |
return 0; | |
pw->pw_gid = strtoul (first_unused, NULL, 10); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
if (NISENTRYLEN(0, 4, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (0, 4, result), | |
NISENTRYLEN (0, 4, result)); | |
first_unused[NISENTRYLEN (0, 4, result)] = '\0'; | |
pw->pw_gecos = first_unused; | |
len = strlen (first_unused); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
if (NISENTRYLEN (0, 5, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (0, 5, result), | |
NISENTRYLEN (0, 5, result)); | |
first_unused[NISENTRYLEN (0, 5, result)] = '\0'; | |
pw->pw_dir = first_unused; | |
len = strlen (first_unused); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
if (NISENTRYLEN (0, 6, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (0, 6, result), | |
NISENTRYLEN (0, 6, result)); | |
first_unused[NISENTRYLEN (0, 6, result)] = '\0'; | |
pw->pw_shell = first_unused; | |
len = strlen (first_unused); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
return 1; | |
} | |
libnss_nisplus_hidden_def (_nss_nisplus_parse_pwent) | |
int | |
_nss_nisplus_parse_grent (nis_result *result, u_long entry, struct group *gr, | |
char *buffer, size_t buflen, int *errnop) | |
{ | |
char *first_unused = buffer; | |
size_t room_left = buflen; | |
char *line; | |
int count; | |
size_t len; | |
if (result == NULL) | |
return 0; | |
if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) | |
|| __type_of(result->objects.objects_val) != NIS_ENTRY_OBJ | |
|| strcmp (result->objects.objects_val[entry].EN_data.en_type, | |
"group_tbl") != 0 | |
|| result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 4) | |
return 0; | |
if (NISENTRYLEN (entry, 0, result) >= room_left) | |
{ | |
/* The line is too long for our buffer. */ | |
no_more_room: | |
*errnop = ERANGE; | |
return -1; | |
} | |
strncpy (first_unused, NISENTRYVAL (entry, 0, result), | |
NISENTRYLEN (entry, 0, result)); | |
first_unused[NISENTRYLEN (entry, 0, result)] = '\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 (NISENTRYLEN (entry, 1, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (entry, 1, result), | |
NISENTRYLEN (entry, 1, result)); | |
first_unused[NISENTRYLEN (entry, 1, result)] = '\0'; | |
gr->gr_passwd = first_unused; | |
len = strlen (first_unused); | |
room_left -= (len + 1); | |
first_unused += (len + 1); | |
if (NISENTRYLEN (entry, 2, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (entry, 2, result), | |
NISENTRYLEN (entry, 2, result)); | |
first_unused[NISENTRYLEN (entry, 2, result)] = '\0'; | |
len = strlen (first_unused); | |
if (len == 0) /* We should always have an gid */ | |
return 0; | |
gr->gr_gid = strtoul (first_unused, NULL, 10); | |
room_left -= (strlen (first_unused) + 1); | |
first_unused += strlen (first_unused) + 1; | |
if (NISENTRYLEN (entry, 3, result) >= room_left) | |
goto no_more_room; | |
strncpy (first_unused, NISENTRYVAL (entry, 3, result), | |
NISENTRYLEN (entry, 3, result)); | |
first_unused[NISENTRYLEN (entry, 3, result)] = '\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. */ | |
first_unused += __alignof__ (char *) - 1; | |
first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); | |
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; | |
else | |
++line; | |
} | |
} | |
if (room_left < sizeof (char *)) | |
goto no_more_room; | |
room_left -= sizeof (char *); | |
gr->gr_mem[count] = NULL; | |
return 1; | |
} | |
libnss_nisplus_hidden_def (_nss_nisplus_parse_grent) | |
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) | |
|| result->objects.objects_len != 1 | |
|| __type_of(result->objects.objects_val) != NIS_ENTRY_OBJ | |
|| strcmp (result->objects.objects_val->EN_data.en_type, | |
"passwd_tbl") != 0 | |
|| result->objects.objects_val[0].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, *cp; | |
line = NISENTRYVAL (0, 7, result); | |
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; | |
} | |
libnss_nisplus_hidden_def (_nss_nisplus_parse_spent) |