diff options
Diffstat (limited to 'glibc-compat/nss_files/files-netgrp.c')
| -rw-r--r-- | glibc-compat/nss_files/files-netgrp.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/glibc-compat/nss_files/files-netgrp.c b/glibc-compat/nss_files/files-netgrp.c deleted file mode 100644 index 8820e6a02c..0000000000 --- a/glibc-compat/nss_files/files-netgrp.c +++ /dev/null @@ -1,268 +0,0 @@ -/* Netgroup file parser in nss_files modules. - Copyright (C) 1996, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 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 <ctype.h> -#include <errno.h> -#include <glibc-compat/include/netdb.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "nsswitch.h" -#include "netgroup.h" - -#define DATAFILE "/etc/netgroup" - - -#define EXPAND(needed) \ - do \ - { \ - size_t old_cursor = result->cursor - result->data; \ - \ - result->data_size += 512 > 2 * needed ? 512 : 2 * needed; \ - result->data = realloc (result->data, result->data_size); \ - \ - if (result->data == NULL) \ - { \ - status = NSS_STATUS_UNAVAIL; \ - goto the_end; \ - } \ - \ - result->cursor = result->data + old_cursor; \ - } \ - while (0) - - -enum nss_status -_nss_files_setnetgrent (const char *group, struct __netgrent *result) -{ - FILE *fp; - enum nss_status status; - - if (group[0] == '\0') - return NSS_STATUS_UNAVAIL; - - /* Find the netgroups file and open it. */ - fp = fopen (DATAFILE, "r"); - if (fp == NULL) - status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL; - else - { - /* Read the file line by line and try to find the description - GROUP. We must take care for long lines. */ - char *line = NULL; - size_t line_len = 0; - const ssize_t group_len = strlen (group); - - status = NSS_STATUS_NOTFOUND; - result->cursor = result->data; - - while (!feof (fp)) - { - ssize_t curlen = getline (&line, &line_len, fp); - int found; - - if (curlen < 0) - { - status = NSS_STATUS_NOTFOUND; - break; - } - - found = (curlen > group_len && strncmp (line, group, group_len) == 0 - && isspace (line[group_len])); - - /* Read the whole line (including continuation) and store it - if FOUND in nonzero. Otherwise we don't need it. */ - if (found) - { - /* Store the data from the first line. */ - EXPAND (curlen - group_len); - memcpy (result->cursor, &line[group_len + 1], - curlen - group_len); - result->cursor += (curlen - group_len) - 1; - } - - while (line[curlen - 1] == '\n' && line[curlen - 2] == '\\') - { - /* Yes, we have a continuation line. */ - if (found) - /* Remove these characters from the stored line. */ - result->cursor -= 2; - - /* Get next line. */ - curlen = getline (&line, &line_len, fp); - if (curlen <= 0) - break; - - if (found) - { - /* Make sure we have enough room. */ - EXPAND (1 + curlen + 1); - - /* Add separator in case next line starts immediately. */ - *result->cursor++ = ' '; - - /* Copy new line. */ - memcpy (result->cursor, line, curlen + 1); - result->cursor += curlen; - } - } - - if (found) - { - /* Now we have read the line. */ - status = NSS_STATUS_SUCCESS; - result->cursor = result->data; - result->first = 1; - break; - } - } - - the_end: - /* We don't need the file and the line buffer anymore. */ - free (line); - fclose (fp); - } - - return status; -} - - -int -_nss_files_endnetgrent (struct __netgrent *result) -{ - /* Free allocated memory for data if some is present. */ - if (result->data != NULL) - { - free (result->data); - result->data = NULL; - result->data_size = 0; - result->cursor = NULL; - } - - return NSS_STATUS_SUCCESS; -} - - -enum nss_status -_nss_netgroup_parseline (char **cursor, struct __netgrent *result, - char *buffer, int buflen) -{ - enum nss_status status; - const char *host, *user, *domain; - char *cp = *cursor; - - /* Some sanity checks. */ - if (cp == NULL) - return NSS_STATUS_NOTFOUND; - - /* First skip leading spaces. */ - while (isspace (*cp)) - ++cp; - - if (*cp != '(') - { - /* We have a list of other netgroups. */ - char *name = cp; - - while (*cp != '\0' && ! isspace (*cp)) - ++cp; - - if (name != cp) - { - /* It is another netgroup name. */ - int last = *cp == '\0'; - - result->type = group_val; - result->val.group = name; - *cp = '\0'; - if (! last) - ++cp; - *cursor = cp; - result->first = 0; - - return NSS_STATUS_SUCCESS; - } - - return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; - } - - /* Match host name. */ - host = ++cp; - while (*cp != ',') - if (*cp++ == '\0') - return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; - - /* Match user name. */ - user = ++cp; - while (*cp != ',') - if (*cp++ == '\0') - return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; - - /* Match domain name. */ - domain = ++cp; - while (*cp != ')') - if (*cp++ == '\0') - return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; - ++cp; - - - /* When we got here we have found an entry. Before we can copy it - to the private buffer we have to make sure it is big enough. */ - if (cp - host > buflen) - { - __set_errno (ERANGE); - status = NSS_STATUS_UNAVAIL; - } - else - { - memcpy (buffer, host, cp - host); - result->type = triple_val; - - buffer[(user - host) - 1] = '\0'; - result->val.triple.host = *host == ',' ? NULL : buffer; - - buffer[(domain - host) - 1] = '\0'; - result->val.triple.user = *user == ',' ? NULL : buffer + (user - host); - - buffer[(cp - host) - 1] = '\0'; - result->val.triple.domain = - *domain == ')' ? NULL : buffer + (domain - host); - - status = NSS_STATUS_SUCCESS; - - /* Remember where we stopped reading. */ - *cursor = cp; - - result->first = 0; - } - - return status; -} - - -enum nss_status -_nss_files_getnetgrent_r (struct __netgrent *result, char *buffer, int buflen) -{ - enum nss_status status; - - status = _nss_netgroup_parseline (&result->cursor, result, buffer, buflen); - - return status; -} |