+++ /dev/null
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
-
- 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, see
- <https://www.gnu.org/licenses/>. */
-
-#include <nss.h>
-#include <netdb.h>
-#include <ctype.h>
-#include <errno.h>
-#include <string.h>
-#include <libc-lock.h>
-#include <rpcsvc/yp.h>
-#include <rpcsvc/ypclnt.h>
-
-#include "nss-nis.h"
-
-/* Get the declaration of the parser function. */
-#define ENTNAME protoent
-#define EXTERN_PARSER
-#include <nss/nss_files/files-parse.c>
-
-__libc_lock_define_initialized (static, lock)
-
-struct response
-{
- struct response *next;
- char val[0];
-};
-
-static struct response *start;
-static struct response *next;
-
-static int
-saveit (int instatus, char *inkey, int inkeylen, char *inval,
- int invallen, char *indata)
-{
- if (instatus != YP_TRUE)
- return 1;
-
- if (inkey && inkeylen > 0 && inval && invallen > 0)
- {
- struct response *newp = malloc (sizeof (struct response) + invallen + 1);
- if (newp == NULL)
- return 1; /* We have no error code for out of memory */
-
- if (start == NULL)
- start = newp;
- else
- next->next = newp;
- next = newp;
-
- newp->next = NULL;
- *((char *) mempcpy (newp->val, inval, invallen)) = '\0';
- }
-
- return 0;
-}
-
-static void
-internal_nis_endprotoent (void)
-{
- while (start != NULL)
- {
- next = start;
- start = start->next;
- free (next);
- }
-}
-
-static enum nss_status
-internal_nis_setprotoent (void)
-{
- char *domainname;
- struct ypall_callback ypcb;
- enum nss_status status;
-
- yp_get_default_domain (&domainname);
-
- internal_nis_endprotoent ();
-
- ypcb.foreach = saveit;
- ypcb.data = NULL;
- status = yperr2nss (yp_all (domainname, "protocols.bynumber", &ypcb));
- next = start;
-
- return status;
-}
-
-enum nss_status
-_nss_nis_setprotoent (int stayopen)
-{
- enum nss_status status;
-
- __libc_lock_lock (lock);
-
- status = internal_nis_setprotoent ();
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-enum nss_status
-_nss_nis_endprotoent (void)
-{
- __libc_lock_lock (lock);
-
- internal_nis_endprotoent ();
- next = NULL;
-
- __libc_lock_unlock (lock);
-
- return NSS_STATUS_SUCCESS;
-}
-
-static enum nss_status
-internal_nis_getprotoent_r (struct protoent *proto,
- char *buffer, size_t buflen, int *errnop)
-{
- struct parser_data *data = (void *) buffer;
- int parse_res;
-
- if (start == NULL)
- internal_nis_setprotoent ();
-
- /* Get the next entry until we found a correct one. */
- do
- {
- char *p;
-
- if (next == NULL)
- return NSS_STATUS_NOTFOUND;
-
- p = strncpy (buffer, next->val, buflen);
-
- while (isspace (*p))
- ++p;
-
- parse_res = _nss_files_parse_protoent (p, proto, data, buflen, errnop);
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
- next = next->next;
- }
- while (!parse_res);
-
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen,
- int *errnop)
-{
- enum nss_status status;
-
- __libc_lock_lock (lock);
-
- status = internal_nis_getprotoent_r (proto, buffer, buflen, errnop);
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-enum nss_status
-_nss_nis_getprotobyname_r (const char *name, struct protoent *proto,
- char *buffer, size_t buflen, int *errnop)
-{
- if (name == NULL)
- {
- *errnop = EINVAL;
- return NSS_STATUS_UNAVAIL;
- }
-
- char *domain;
- if (__glibc_unlikely (yp_get_default_domain (&domain)))
- return NSS_STATUS_UNAVAIL;
-
- char *result;
- int len;
- int yperr = yp_match (domain, "protocols.byname", name, strlen (name),
- &result, &len);
-
- if (__glibc_unlikely (yperr != YPERR_SUCCESS))
- {
- enum nss_status retval = yperr2nss (yperr);
-
- if (retval == NSS_STATUS_TRYAGAIN)
- *errnop = errno;
- return retval;
- }
-
- if (__glibc_unlikely ((size_t) (len + 1) > buflen))
- {
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
-
- char *p = strncpy (buffer, result, len);
- buffer[len] = '\0';
- while (isspace (*p))
- ++p;
- free (result);
-
- int parse_res = _nss_files_parse_protoent (p, proto, (void *) buffer, buflen,
- errnop);
- if (__glibc_unlikely (parse_res < 1))
- {
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
- else
- return NSS_STATUS_NOTFOUND;
- }
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_nis_getprotobynumber_r (int number, struct protoent *proto,
- char *buffer, size_t buflen, int *errnop)
-{
- char *domain;
- if (__glibc_unlikely (yp_get_default_domain (&domain)))
- return NSS_STATUS_UNAVAIL;
-
- char buf[32];
- int nlen = snprintf (buf, sizeof (buf), "%d", number);
-
- char *result;
- int len;
- int yperr = yp_match (domain, "protocols.bynumber", buf, nlen, &result,
- &len);
-
- if (__glibc_unlikely (yperr != YPERR_SUCCESS))
- {
- enum nss_status retval = yperr2nss (yperr);
-
- if (retval == NSS_STATUS_TRYAGAIN)
- *errnop = errno;
- return retval;
- }
-
- if (__glibc_unlikely ((size_t) (len + 1) > buflen))
- {
- free (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
-
- char *p = strncpy (buffer, result, len);
- buffer[len] = '\0';
- while (isspace (*p))
- ++p;
- free (result);
-
- int parse_res = _nss_files_parse_protoent (p, proto, (void *) buffer, buflen,
- errnop);
- if (__glibc_unlikely (parse_res < 1))
- {
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
- else
- return NSS_STATUS_NOTFOUND;
- }
- return NSS_STATUS_SUCCESS;
-}
projects / thirdparty / glibc.git / blobdiff