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Diffstat (limited to '')
| -rw-r--r-- | src/basic/nss-util.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/basic/nss-util.h b/src/basic/nss-util.h new file mode 100644 index 0000000..2045175 --- /dev/null +++ b/src/basic/nss-util.h @@ -0,0 +1,183 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#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_ + +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); |