-/* Copyright (C) 1996-1998,2001,2002,2003,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1996-1998, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
#include <nss.h>
+/* The following is an ugly trick to avoid a prototype declaration for
+ _nss_nis_endpwent. */
+#define _nss_nis_endpwent _nss_nis_endpwent_XXX
#include <pwd.h>
+#undef _nss_nis_endpwent
+#include <ctype.h>
+#include <errno.h>
#include <string.h>
#include <bits/libc-lock.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
#include "nss-nis.h"
-#include <libnsl.h>
/* Get the declaration of the parser function. */
#define ENTNAME pwent
static bool_t new_start = 1;
static char *oldkey;
static int oldkeylen;
-static intern_t intern;
-
-int
-_nis_saveit (int instatus, char *inkey, int inkeylen, char *inval,
- int invallen, char *indata)
+enum nss_status
+_nss_nis_setpwent (int stayopen)
{
- intern_t *intern = (intern_t *) indata;
-
- if (instatus != YP_TRUE)
- return 1;
-
- if (inkey && inkeylen > 0 && inval && invallen > 0)
- {
- struct response_t *bucket = intern->next;
-
- if (__builtin_expect (bucket == NULL, 0))
- {
-#define MINSIZE 4096 - 4 * sizeof (void *)
- const size_t minsize = MAX (MINSIZE, 2 * (invallen + 1));
- bucket = malloc (sizeof (struct response_t) + minsize);
- if (bucket == NULL)
- /* We have no error code for out of memory. */
- return 1;
-
- bucket->next = NULL;
- bucket->size = minsize;
- intern->start = intern->next = bucket;
- intern->offset = 0;
- }
- else if (__builtin_expect (invallen + 1 > bucket->size - intern->offset,
- 0))
- {
- /* We need a new (larger) buffer. */
- const size_t newsize = 2 * MAX (bucket->size, invallen + 1);
- struct response_t *newp = malloc (sizeof (struct response_t)
- + newsize);
- if (newp == NULL)
- /* We have no error code for out of memory. */
- return 1;
-
- /* Mark the old bucket as full. */
- bucket->size = intern->offset;
-
- newp->next = NULL;
- newp->size = newsize;
- bucket = intern->next = bucket->next = newp;
- intern->offset = 0;
- }
-
- char *p = mempcpy (&bucket->mem[intern->offset], inval, invallen);
- if (__builtin_expect (p[-1] != '\0', 0))
- {
- *p = '\0';
- ++invallen;
- }
- intern->offset += invallen;
- }
-
- return 0;
-}
-
+ __libc_lock_lock (lock);
-static void
-internal_nis_endpwent (void)
-{
new_start = 1;
if (oldkey != NULL)
{
oldkeylen = 0;
}
- struct response_t *curr = intern.next;
-
- while (curr != NULL)
- {
- struct response_t *last = curr;
- curr = curr->next;
- free (last);
- }
-
- intern.next = intern.start = NULL;
-}
-
-
-enum nss_status
-_nss_nis_endpwent (void)
-{
- __libc_lock_lock (lock);
-
- internal_nis_endpwent ();
-
__libc_lock_unlock (lock);
return NSS_STATUS_SUCCESS;
}
-
-
-enum nss_status
-internal_nis_setpwent (void)
-{
- /* We have to read all the data now. */
- char *domain;
- if (__builtin_expect (yp_get_default_domain (&domain), 0))
- return NSS_STATUS_UNAVAIL;
-
- struct ypall_callback ypcb;
-
- ypcb.foreach = _nis_saveit;
- ypcb.data = (char *) &intern;
- enum nss_status status = yperr2nss (yp_all (domain, "passwd.byname", &ypcb));
-
-
- /* Mark the last buffer as full. */
- if (intern.next != NULL)
- intern.next->size = intern.offset;
-
- intern.next = intern.start;
- intern.offset = 0;
-
- return status;
-}
-
-
-enum nss_status
-_nss_nis_setpwent (int stayopen)
-{
- enum nss_status result = NSS_STATUS_SUCCESS;
-
- __libc_lock_lock (lock);
-
- internal_nis_endpwent ();
-
- if (_nsl_default_nss () & NSS_FLAG_SETENT_BATCH_READ)
- result = internal_nis_setpwent ();
-
- __libc_lock_unlock (lock);
-
- return result;
-}
-
+/* Make _nss_nis_endpwent an alias of _nss_nis_setpwent. We do this
+ even though the prototypes don't match. The argument of setpwent
+ is not used so this makes no difference. */
+strong_alias (_nss_nis_setpwent, _nss_nis_endpwent)
static enum nss_status
internal_nis_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen,
int *errnop)
{
- /* If we read the entire database at setpwent time we just iterate
- over the data we have in memory. */
- bool batch_read = intern.start != NULL;
+ struct parser_data *data = (void *) buffer;
+ char *domain;
+ int parse_res;
- char *domain = NULL;
- if (!batch_read && __builtin_expect (yp_get_default_domain (&domain), 0))
+ if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
/* Get the next entry until we found a correct one. */
- int parse_res;
do
{
- char *result;
- char *outkey;
- int len;
- int keylen;
-
- if (batch_read)
- {
- struct response_t *bucket;
-
- handle_batch_read:
- bucket = intern.next;
-
- if (__builtin_expect (intern.offset >= bucket->size, 0))
- {
- if (bucket->next == NULL)
- return NSS_STATUS_NOTFOUND;
-
- /* We look at all the content in the current bucket. Go on
- to the next. */
- bucket = intern.next = bucket->next;
- intern.offset = 0;
- }
-
- for (result = &bucket->mem[intern.offset]; isspace (*result);
- ++result)
- ++intern.offset;
+ enum nss_status retval;
+ char *result, *outkey, *result2, *p;
+ int len, keylen, len2;
+ size_t namelen;
- len = strlen (result);
- }
+ if (new_start)
+ retval = yperr2nss (yp_first (domain, "passwd.byname",
+ &outkey, &keylen, &result, &len));
else
- {
- int yperr;
+ retval = yperr2nss ( yp_next (domain, "passwd.byname",
+ oldkey, oldkeylen,
+ &outkey, &keylen, &result, &len));
- if (new_start)
- {
- /* Maybe we should read the database in one piece. */
- if ((_nsl_default_nss () & NSS_FLAG_SETENT_BATCH_READ)
- && internal_nis_setpwent () == NSS_STATUS_SUCCESS
- && intern.start != NULL)
- {
- batch_read = true;
- goto handle_batch_read;
- }
-
- yperr = yp_first (domain, "passwd.byname", &outkey, &keylen,
- &result, &len);
- }
- else
- yperr = yp_next (domain, "passwd.byname", oldkey, oldkeylen,
- &outkey, &keylen, &result, &len);
-
- if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
- {
- enum nss_status retval = yperr2nss (yperr);
-
- if (retval == NSS_STATUS_TRYAGAIN)
- *errnop = errno;
- return retval;
- }
- }
+ if (retval != NSS_STATUS_SUCCESS)
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
+ *errnop = errno;
+ return retval;
+ }
/* Check for adjunct style secret passwords. They can be
recognized by a password starting with "##". */
- char *p = strchr (result, ':');
- size_t namelen;
- char *result2;
- int len2;
+ p = strchr (result, ':');
if (p != NULL /* This better should be true in all cases. */
&& p[1] == '#' && p[2] == '#'
&& (namelen = p - result,
}
restlen = len - (p - result);
- if (__builtin_expect ((size_t) (namelen + (endp - encrypted)
- + restlen + 2) > buflen, 0))
+ if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
{
free (result2);
free (result);
return NSS_STATUS_TRYAGAIN;
}
- mempcpy (mempcpy (mempcpy (mempcpy (buffer, result, namelen),
- ":", 1),
- encrypted, endp - encrypted),
- p, restlen + 1);
+ __mempcpy (__mempcpy (__mempcpy (__mempcpy (buffer, result, namelen),
+ ":", 1),
+ encrypted, endp - encrypted),
+ p, restlen + 1);
p = buffer;
free (result2);
else
{
non_adjunct:
- if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
+ if ((size_t) (len + 1) > buflen)
{
free (result);
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
- p = buffer;
- *((char *) mempcpy (buffer, result, len)) = '\0';
+ p = strncpy (buffer, result, len);
+ buffer[len] = '\0';
}
while (isspace (*p))
++p;
- if (!batch_read)
- free (result);
+ free (result);
- parse_res = _nss_files_parse_pwent (p, pwd, (void *) buffer, buflen,
- errnop);
- if (__builtin_expect (parse_res == -1, 0))
+ parse_res = _nss_files_parse_pwent (p, pwd, data, buflen, errnop);
+ if (parse_res == -1)
{
- if (!batch_read)
- free (outkey);
+ free (outkey);
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
- if (batch_read)
- intern.offset += len + 1;
- else
- {
- free (oldkey);
- oldkey = outkey;
- oldkeylen = keylen;
- new_start = 0;
- }
+ free (oldkey);
+ oldkey = outkey;
+ oldkeylen = keylen;
+ new_start = 0;
}
while (parse_res < 1);
_nss_nis_getpwnam_r (const char *name, struct passwd *pwd,
char *buffer, size_t buflen, int *errnop)
{
+ struct parser_data *data = (void *) buffer;
+ enum nss_status retval;
+ char *domain, *result, *result2, *p;
+ int len, len2, parse_res;
+ size_t namelen;
+
if (name == NULL)
{
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
- char *domain;
- if (__builtin_expect (yp_get_default_domain (&domain), 0))
+ if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
- size_t namelen = strlen (name);
+ namelen = strlen (name);
- char *result;
- int len;
- int yperr = yp_match (domain, "passwd.byname", name, namelen, &result, &len);
+ retval = yperr2nss (yp_match (domain, "passwd.byname", name,
+ namelen, &result, &len));
- if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
+ if (retval != NSS_STATUS_SUCCESS)
{
- enum nss_status retval = yperr2nss (yperr);
-
if (retval == NSS_STATUS_TRYAGAIN)
*errnop = errno;
return retval;
/* Check for adjunct style secret passwords. They can be recognized
by a password starting with "##". */
- char *result2;
- int len2;
- char *p = strchr (result, ':');
+ p = strchr (result, ':');
if (p != NULL /* This better should be true in all cases. */
&& p[1] == '#' && p[2] == '#'
&& yp_match (domain, "passwd.adjunct.byname", name, namelen,
therein into original result. */
char *encrypted = strchr (result2, ':');
char *endp;
+ size_t restlen;
if (encrypted == NULL
|| (endp = strchr (++encrypted, ':')) == NULL
goto non_adjunct;
}
- size_t restlen = len - (p - result);
- if (__builtin_expect ((size_t) (namelen + (endp - encrypted)
- + restlen + 2) > buflen, 0))
+ restlen = len - (p - result);
+ if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
{
free (result2);
free (result);
else
{
non_adjunct:
- if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
+ if ((size_t) (len + 1) > buflen)
{
free (result);
*errnop = ERANGE;
++p;
free (result);
- int parse_res = _nss_files_parse_pwent (p, pwd, (void *) buffer, buflen,
- errnop);
- if (__builtin_expect (parse_res < 1, 0))
+ parse_res = _nss_files_parse_pwent (p, pwd, data, buflen, errnop);
+ if (parse_res < 1)
{
if (parse_res == -1)
return NSS_STATUS_TRYAGAIN;
_nss_nis_getpwuid_r (uid_t uid, struct passwd *pwd,
char *buffer, size_t buflen, int *errnop)
{
- char *domain;
- if (__builtin_expect (yp_get_default_domain (&domain), 0))
+ struct parser_data *data = (void *) buffer;
+ enum nss_status retval;
+ char *domain, *result, *p, *result2;
+ int len, nlen, parse_res, len2;
+ char buf[32];
+ size_t namelen;
+
+ if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
- char buf[32];
- int nlen = snprintf (buf, sizeof (buf), "%lu", (unsigned long int) uid);
+ nlen = sprintf (buf, "%lu", (unsigned long int) uid);
- char *result;
- int len;
- int yperr = yp_match (domain, "passwd.byuid", buf, nlen, &result, &len);
+ retval = yperr2nss (yp_match (domain, "passwd.byuid", buf,
+ nlen, &result, &len));
- if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
+ if (retval != NSS_STATUS_SUCCESS)
{
- enum nss_status retval = yperr2nss (yperr);
-
if (retval == NSS_STATUS_TRYAGAIN)
*errnop = errno;
return retval;
/* Check for adjunct style secret passwords. They can be recognized
by a password starting with "##". */
- char *result2;
- int len2;
- size_t namelen;
- char *p = strchr (result, ':');
+ p = strchr (result, ':');
if (p != NULL /* This better should be true in all cases. */
&& p[1] == '#' && p[2] == '#'
&& (namelen = p - result,
}
restlen = len - (p - result);
- if (__builtin_expect ((size_t) (namelen + (endp - encrypted)
- + restlen + 2) > buflen, 0))
+ if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
{
free (result2);
free (result);
else
{
non_adjunct:
- if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
+ if ((size_t) (len + 1) > buflen)
{
free (result);
*errnop = ERANGE;
++p;
free (result);
- int parse_res = _nss_files_parse_pwent (p, pwd, (void *) buffer, buflen,
- errnop);
- if (__builtin_expect (parse_res < 1, 0))
+ parse_res = _nss_files_parse_pwent (p, pwd, data, buflen, errnop);
+ if (parse_res < 1)
{
if (parse_res == -1)
return NSS_STATUS_TRYAGAIN;
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