diff options
Diffstat (limited to 'nis')
| -rw-r--r-- | nis/nss_nis/nis-netgrp.c | 86 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-netgrp.c | 140 |
2 files changed, 95 insertions, 131 deletions
diff --git a/nis/nss_nis/nis-netgrp.c b/nis/nss_nis/nis-netgrp.c index e9318d6..d339dd5 100644 --- a/nis/nss_nis/nis-netgrp.c +++ b/nis/nss_nis/nis-netgrp.c @@ -1,4 +1,5 @@ -/* Copyright (C) 1996,1997,1999,2000,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1996,1997,1999,2000,2002,2003,2004 + Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996. @@ -17,11 +18,12 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> +#include <assert.h> #include <ctype.h> #include <errno.h> -#include <bits/libc-lock.h> +#include <malloc.h> #include <netdb.h> +#include <nss.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -31,36 +33,28 @@ #include "nss-nis.h" -/* Locks the static variables in this file. */ -__libc_lock_define_initialized (static, lock) - -static char *data; -static size_t data_size; -static char *cursor; - extern enum nss_status -_nss_netgroup_parseline (char **cursor, struct __netgrent *result, +_nss_netgroup_parseline (char **cursor, struct __netgrent *netgrp, char *buffer, size_t buflen, int *errnop); static void -internal_nis_endnetgrent (void) +internal_nis_endnetgrent (struct __netgrent *netgrp) { - if (data != NULL) + if (netgrp->data != NULL) { - free (data); - data = NULL; - data_size = 0; - cursor = NULL; + free (netgrp->data); + netgrp->data = NULL; + netgrp->data_size = 0; + netgrp->cursor = NULL; } } enum nss_status -_nss_nis_setnetgrent (const char *group, struct __netgrent *dummy) +_nss_nis_setnetgrent (const char *group, struct __netgrent *netgrp) { char *domain; - char *result; - int len, group_len; + int len; enum nss_status status; status = NSS_STATUS_SUCCESS; @@ -71,41 +65,32 @@ _nss_nis_setnetgrent (const char *group, struct __netgrent *dummy) if (yp_get_default_domain (&domain)) return NSS_STATUS_UNAVAIL; - __libc_lock_lock (lock); + internal_nis_endnetgrent (netgrp); - internal_nis_endnetgrent (); - - group_len = strlen (group); - - status = yperr2nss (yp_match (domain, "netgroup", group, group_len, - &result, &len)); + status = yperr2nss (yp_match (domain, "netgroup", group, strlen (group), + &netgrp->data, &len)); if (status == NSS_STATUS_SUCCESS) { - if (len > 0 && (data = malloc (len + 1)) != NULL) - { - data_size = len; - cursor = strncpy (data, result, len + 1); - data[len] = '\0'; - free (result); - } - else - status = NSS_STATUS_NOTFOUND; + /* Our implementation of yp_match already allocates a buffer + which is one byte larger than the value in LEN specifies + and the last byte is filled with NUL. So we can simply + use that buffer. */ + assert (len > 0); + assert (malloc_usable_size (netgrp->data) >= len + 1); + assert (netgrp->data[len] == '\0'); + + netgrp->data_size = len; + netgrp->cursor = netgrp->data; } - __libc_lock_unlock (lock); - return status; } enum nss_status -_nss_nis_endnetgrent (struct __netgrent *dummy) +_nss_nis_endnetgrent (struct __netgrent *netgrp) { - __libc_lock_lock (lock); - - internal_nis_endnetgrent (); - - __libc_lock_unlock (lock); + internal_nis_endnetgrent (netgrp); return NSS_STATUS_SUCCESS; } @@ -114,16 +99,9 @@ enum nss_status _nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen, int *errnop) { - enum nss_status status; - - if (cursor == NULL) + if (result->cursor == NULL) return NSS_STATUS_NOTFOUND; - __libc_lock_lock (lock); - - status = _nss_netgroup_parseline (&cursor, result, buffer, buflen, errnop); - - __libc_lock_unlock (lock); - - return status; + return _nss_netgroup_parseline (&result->cursor, result, buffer, buflen, + errnop); } diff --git a/nis/nss_nisplus/nisplus-netgrp.c b/nis/nss_nisplus/nisplus-netgrp.c index 2d5ddf0..c56a685 100644 --- a/nis/nss_nisplus/nisplus-netgrp.c +++ b/nis/nss_nisplus/nisplus-netgrp.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -23,51 +23,47 @@ #include <netdb.h> #include <string.h> #include <netgroup.h> -#include <bits/libc-lock.h> #include <rpcsvc/nis.h> #include "nss-nisplus.h" -__libc_lock_define_initialized (static, lock) - -static nis_result *data = NULL; -static unsigned long data_size = 0; -static unsigned long position = 0; - #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) -static enum nss_status -_nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, - size_t buflen, int *errnop) +enum nss_status +_nss_nisplus_getnetgrent_r (struct __netgrent *result, char *buffer, + size_t buflen, int *errnop) { enum nss_status status; /* Some sanity checks. */ - if (data == NULL || data_size == 0) + if (result->data == NULL || result->data_size == 0) return NSS_STATUS_NOTFOUND; - if (position == data_size) + if (result->position == result->data_size) return result->first ? NSS_STATUS_NOTFOUND : NSS_STATUS_RETURN; - if (NISENTRYLEN (position, 1, data) > 0) + unsigned int entrylen + = NISENTRYLEN (result->position, 1, (nis_result *) result->data); + if (entrylen > 0) { /* We have a list of other netgroups. */ result->type = group_val; - if (NISENTRYLEN (position, 1, data) >= buflen) + if (entrylen >= buflen) { *errnop = ERANGE; return NSS_STATUS_TRYAGAIN; } - strncpy (buffer, NISENTRYVAL (position, 1, data), - NISENTRYLEN (position, 1, data)); - buffer[NISENTRYLEN (position, 1, data)] = '\0'; + strncpy (buffer, NISENTRYVAL (result->position, 1, + (nis_result *) result->data), + entrylen); + buffer[entrylen] = '\0'; result->val.group = buffer; - ++position; + ++result->position; result->first = 0; return NSS_STATUS_SUCCESS; @@ -75,8 +71,13 @@ _nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, /* Before we can copy the entry to the private buffer we have to make sure it is big enough. */ - if (NISENTRYLEN (position, 2, data) + NISENTRYLEN (position, 3, data) + - NISENTRYLEN (position, 4, data) + 6 > buflen) + unsigned int hostlen + = NISENTRYLEN (result->position, 2, (nis_result *) result->data); + unsigned int userlen + = NISENTRYLEN (result->position, 3, (nis_result *) result->data); + unsigned int domainlen + = NISENTRYLEN (result->position, 4, (nis_result *) result->data); + if (hostlen + userlen + domainlen + 6 > buflen) { *errnop = ERANGE; status = NSS_STATUS_TRYAGAIN; @@ -87,40 +88,43 @@ _nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, result->type = triple_val; - if (NISENTRYLEN (position, 2, data) == 0) + if (hostlen == 0) result->val.triple.host = NULL; else { result->val.triple.host = cp; - cp = __stpncpy (cp, NISENTRYVAL (position, 2, data), - NISENTRYLEN (position, 2, data)); + cp = __stpncpy (cp, NISENTRYVAL (result->position, 2, + (nis_result *) result->data), + hostlen); *cp++ = '\0'; } - if (NISENTRYLEN (position, 3, data) == 0) + if (userlen == 0) result->val.triple.user = NULL; else { result->val.triple.user = cp; - cp = __stpncpy (cp, NISENTRYVAL (position, 3, data), - NISENTRYLEN (position, 3, data)); + cp = __stpncpy (cp, NISENTRYVAL (result->position, 3, + (nis_result *) result->data), + userlen); *cp++ = '\0'; } - if (NISENTRYLEN (position, 4, data) == 0) + if (domainlen == 0) result->val.triple.domain = NULL; else { result->val.triple.domain = cp; - cp = __stpncpy (cp, NISENTRYVAL (position, 4, data), - NISENTRYLEN (position, 4, data)); + cp = __stpncpy (cp, NISENTRYVAL (result->position, 4, + (nis_result *) result->data), + domainlen); *cp = '\0'; } status = NSS_STATUS_SUCCESS; /* Remember where we stopped reading. */ - ++position; + ++result->position; result->first = 0; } @@ -128,8 +132,20 @@ _nss_nisplus_parse_netgroup (struct __netgrent *result, char *buffer, return status; } +static void +internal_endnetgrent (struct __netgrent *netgrp) +{ + if (netgrp->data != NULL) + { + nis_freeresult ((nis_result *) netgrp->data); + netgrp->data = NULL; + netgrp->data_size = 0; + netgrp->position = 0; + } +} + enum nss_status -_nss_nisplus_setnetgrent (const char *group, struct __netgrent *dummy) +_nss_nisplus_setnetgrent (const char *group, struct __netgrent *netgrp) { enum nss_status status; char buf[strlen (group) + 30]; @@ -139,68 +155,38 @@ _nss_nisplus_setnetgrent (const char *group, struct __netgrent *dummy) status = NSS_STATUS_SUCCESS; - __libc_lock_lock (lock); - - if (data != NULL) - { - nis_freeresult (data); - data = NULL; - data_size = 0; - position = 0; - } + internal_endnetgrent (netgrp); sprintf (buf, "[name=%s],netgroup.org_dir", group); - data = nis_list (buf, EXPAND_NAME, NULL, NULL); + netgrp->data = (char *) nis_list (buf, EXPAND_NAME, NULL, NULL); - if (data == NULL) + if (netgrp->data == NULL) { __set_errno (ENOMEM); status = NSS_STATUS_TRYAGAIN; } - else if (niserr2nss (data->status) != NSS_STATUS_SUCCESS) + else if (niserr2nss (((nis_result *) netgrp->data)->status) + != NSS_STATUS_SUCCESS) { - status = niserr2nss (data->status); - nis_freeresult (data); - data = NULL; + status = niserr2nss (((nis_result *) netgrp->data)->status); + + internal_endnetgrent (netgrp); } else - data_size = data->objects.objects_len; - - __libc_lock_unlock (lock); - - return status; -} - -enum nss_status -_nss_nisplus_endnetgrent (struct __netgrent *dummy) -{ - __libc_lock_lock (lock); - - if (data != NULL) { - nis_freeresult (data); - data = NULL; - data_size = 0; - position = 0; + netgrp->data_size = ((nis_result *) netgrp->data)->objects.objects_len; + netgrp->position = 0; + netgrp->first = 1; } - __libc_lock_unlock (lock); - - return NSS_STATUS_SUCCESS; + return status; } enum nss_status -_nss_nisplus_getnetgrent_r (struct __netgrent *result, - char *buffer, size_t buflen, int *errnop) +_nss_nisplus_endnetgrent (struct __netgrent *netgrp) { - enum nss_status status; - - __libc_lock_lock (lock); - - status = _nss_nisplus_parse_netgroup (result, buffer, buflen, errnop); + internal_endnetgrent (netgrp); - __libc_lock_unlock (lock); - - return status; + return NSS_STATUS_SUCCESS; } |