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-rw-r--r--src/basic/nss-util.h215
1 files changed, 215 insertions, 0 deletions
diff --git a/src/basic/nss-util.h b/src/basic/nss-util.h
new file mode 100644
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+++ b/src/basic/nss-util.h
@@ -0,0 +1,215 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <grp.h>
+#include <netdb.h>
+#include <nss.h>
+#include <pwd.h>
+#include <resolv.h>
+
+#define NSS_SIGNALS_BLOCK SIGALRM,SIGVTALRM,SIGPIPE,SIGCHLD,SIGTSTP,SIGIO,SIGHUP,SIGUSR1,SIGUSR2,SIGPROF,SIGURG,SIGWINCH
+
+#ifndef DEPRECATED_RES_USE_INET6
+# define DEPRECATED_RES_USE_INET6 0x00002000
+#endif
+
+#define NSS_GETHOSTBYNAME_PROTOTYPES(module) \
+enum nss_status _nss_##module##_gethostbyname4_r( \
+ const char *name, \
+ struct gaih_addrtuple **pat, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop, \
+ int32_t *ttlp) _public_; \
+enum nss_status _nss_##module##_gethostbyname3_r( \
+ const char *name, \
+ int af, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop, \
+ int32_t *ttlp, \
+ char **canonp) _public_; \
+enum nss_status _nss_##module##_gethostbyname2_r( \
+ const char *name, \
+ int af, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop) _public_; \
+enum nss_status _nss_##module##_gethostbyname_r( \
+ const char *name, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop) _public_
+
+#define NSS_GETHOSTBYADDR_PROTOTYPES(module) \
+enum nss_status _nss_##module##_gethostbyaddr2_r( \
+ const void* addr, socklen_t len, \
+ int af, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop, \
+ int32_t *ttlp) _public_; \
+enum nss_status _nss_##module##_gethostbyaddr_r( \
+ const void* addr, socklen_t len, \
+ int af, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop) _public_
+
+#define NSS_GETHOSTBYNAME_FALLBACKS(module) \
+enum nss_status _nss_##module##_gethostbyname2_r( \
+ const char *name, \
+ int af, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop) { \
+ return _nss_##module##_gethostbyname3_r( \
+ name, \
+ af, \
+ host, \
+ buffer, buflen, \
+ errnop, h_errnop, \
+ NULL, \
+ NULL); \
+} \
+enum nss_status _nss_##module##_gethostbyname_r( \
+ const char *name, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop) { \
+ enum nss_status ret = NSS_STATUS_NOTFOUND; \
+ \
+ if (_res.options & DEPRECATED_RES_USE_INET6) \
+ ret = _nss_##module##_gethostbyname3_r( \
+ name, \
+ AF_INET6, \
+ host, \
+ buffer, buflen, \
+ errnop, h_errnop, \
+ NULL, \
+ NULL); \
+ if (ret == NSS_STATUS_NOTFOUND) \
+ ret = _nss_##module##_gethostbyname3_r( \
+ name, \
+ AF_INET, \
+ host, \
+ buffer, buflen, \
+ errnop, h_errnop, \
+ NULL, \
+ NULL); \
+ return ret; \
+}
+
+#define NSS_GETHOSTBYADDR_FALLBACKS(module) \
+enum nss_status _nss_##module##_gethostbyaddr_r( \
+ const void* addr, socklen_t len, \
+ int af, \
+ struct hostent *host, \
+ char *buffer, size_t buflen, \
+ int *errnop, int *h_errnop) { \
+ return _nss_##module##_gethostbyaddr2_r( \
+ addr, len, \
+ af, \
+ host, \
+ buffer, buflen, \
+ errnop, h_errnop, \
+ NULL); \
+}
+
+#define NSS_GETPW_PROTOTYPES(module) \
+enum nss_status _nss_##module##_getpwnam_r( \
+ const char *name, \
+ struct passwd *pwd, \
+ char *buffer, size_t buflen, \
+ int *errnop) _public_; \
+enum nss_status _nss_##module##_getpwuid_r( \
+ uid_t uid, \
+ struct passwd *pwd, \
+ char *buffer, size_t buflen, \
+ int *errnop) _public_
+
+#define NSS_GETGR_PROTOTYPES(module) \
+enum nss_status _nss_##module##_getgrnam_r( \
+ const char *name, \
+ struct group *gr, \
+ char *buffer, size_t buflen, \
+ int *errnop) _public_; \
+enum nss_status _nss_##module##_getgrgid_r( \
+ gid_t gid, \
+ struct group *gr, \
+ char *buffer, size_t buflen, \
+ int *errnop) _public_
+
+#define NSS_PWENT_PROTOTYPES(module) \
+enum nss_status _nss_##module##_endpwent( \
+ void) _public_; \
+enum nss_status _nss_##module##_setpwent( \
+ int stayopen) _public_; \
+enum nss_status _nss_##module##_getpwent_r( \
+ struct passwd *result, \
+ char *buffer, \
+ size_t buflen, \
+ int *errnop) _public_;
+
+#define NSS_GRENT_PROTOTYPES(module) \
+enum nss_status _nss_##module##_endgrent( \
+ void) _public_; \
+enum nss_status _nss_##module##_setgrent( \
+ int stayopen) _public_; \
+enum nss_status _nss_##module##_getgrent_r( \
+ struct group *result, \
+ char *buffer, \
+ size_t buflen, \
+ int *errnop) _public_;
+
+#define NSS_INITGROUPS_PROTOTYPE(module) \
+enum nss_status _nss_##module##_initgroups_dyn( \
+ const char *user, \
+ gid_t group, \
+ long int *start, \
+ long int *size, \
+ gid_t **groupsp, \
+ long int limit, \
+ int *errnop) _public_;
+
+typedef enum nss_status (*_nss_gethostbyname4_r_t)(
+ const char *name,
+ struct gaih_addrtuple **pat,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop,
+ int32_t *ttlp);
+
+typedef enum nss_status (*_nss_gethostbyname3_r_t)(
+ const char *name,
+ int af,
+ struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop,
+ int32_t *ttlp,
+ char **canonp);
+
+typedef enum nss_status (*_nss_gethostbyname2_r_t)(
+ const char *name,
+ int af,
+ struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop);
+
+typedef enum nss_status (*_nss_gethostbyname_r_t)(
+ const char *name,
+ struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop);
+
+typedef enum nss_status (*_nss_gethostbyaddr2_r_t)(
+ const void* addr, socklen_t len,
+ int af,
+ struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop,
+ int32_t *ttlp);
+typedef enum nss_status (*_nss_gethostbyaddr_r_t)(
+ const void* addr, socklen_t len,
+ int af,
+ struct hostent *host,
+ char *buffer, size_t buflen,
+ int *errnop, int *h_errnop);