libvirt/tools/nss/libvirt_nss.h
Michal Privoznik fd21db659d nss: Include stdio.h and define NULLSTR when debugging is enabled
The NSS module has a compile time option which when enabled makes
ERROR() and DEBUG() print messages onto stderr. But now that the
module no longer links with libvirt, we need to include stdio.h
and define NULLSTR().

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-08-09 12:17:19 +02:00

90 lines
2.9 KiB
C

/*
* libvirt_nss: Name Service Switch plugin
*
* The aim is to enable users and applications to translate
* domain names into IP addresses. However, this is currently
* available only for those domains which gets their IP addresses
* from a libvirt managed network.
*
* Copyright (C) 2016 Red Hat, Inc.
*
* This 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.
*
* This 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 this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <nss.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#if 0
# include <errno.h>
# include <stdio.h>
# define NULLSTR(s) ((s) ? (s) : "<null>")
# define ERROR(...) \
do { \
char ebuf[1024]; \
strerror_r(errno, ebuf, sizeof(ebuf)); \
fprintf(stderr, "ERROR %s:%d : ", __FUNCTION__, __LINE__); \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, " : %s\n", ebuf); \
fprintf(stderr, "\n"); \
} while (0)
# define DEBUG(...) \
do { \
fprintf(stderr, "DEBUG %s:%d : ", __FUNCTION__, __LINE__); \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, "\n"); \
} while (0)
#else
# define ERROR(...) do { } while (0)
# define DEBUG(...) do { } while (0)
#endif
#if !defined(LIBVIRT_NSS_GUEST)
# define NSS_NAME(s) _nss_libvirt_##s##_r
#else
# define NSS_NAME(s) _nss_libvirt_guest_##s##_r
#endif
enum nss_status
NSS_NAME(gethostbyname)(const char *name, struct hostent *result,
char *buffer, size_t buflen, int *errnop,
int *herrnop);
enum nss_status
NSS_NAME(gethostbyname2)(const char *name, int af, struct hostent *result,
char *buffer, size_t buflen, int *errnop,
int *herrnop);
enum nss_status
NSS_NAME(gethostbyname3)(const char *name, int af, struct hostent *result,
char *buffer, size_t buflen, int *errnop,
int *herrnop, int32_t *ttlp, char **canonp);
#ifdef HAVE_STRUCT_GAIH_ADDRTUPLE
enum nss_status
NSS_NAME(gethostbyname4)(const char *name, struct gaih_addrtuple **pat,
char *buffer, size_t buflen, int *errnop,
int *herrnop, int32_t *ttlp);
#endif /* HAVE_STRUCT_GAIH_ADDRTUPLE */
#if defined(HAVE_BSD_NSS)
ns_mtab*
nss_module_register(const char *name, unsigned int *size,
nss_module_unregister_fn *unregister);
#endif /* HAVE_BSD_NSS */