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author | Florian Weimer <fweimer@redhat.com> | 2021-07-07 18:33:52 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2021-07-07 18:33:52 +0200 |
commit | f9c8b11ed7726b858cd7b7cea0d3d7c5233d78cf (patch) | |
tree | 7a7ebab1e97c4fb74bd7bdf2cee773557d83bdd8 /nss/nss_files_functions.c | |
parent | 6212bb67f4695962748a5981e1b9fea105af74f6 (diff) | |
download | glibc-f9c8b11ed7726b858cd7b7cea0d3d7c5233d78cf.tar.gz glibc-f9c8b11ed7726b858cd7b7cea0d3d7c5233d78cf.tar.xz glibc-f9c8b11ed7726b858cd7b7cea0d3d7c5233d78cf.zip |
nss: Access nss_files through direct references
This partially fixes static-only NSS support (bug 27959): The files module no longer needs dlopen. Support for the dns module remains to be added, and also support for disabling dlopen altogether. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'nss/nss_files_functions.c')
-rw-r--r-- | nss/nss_files_functions.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/nss/nss_files_functions.c b/nss/nss_files_functions.c new file mode 100644 index 0000000000..85720b4311 --- /dev/null +++ b/nss/nss_files_functions.c @@ -0,0 +1,43 @@ +/* Direct access for nss_files functions for NSS module loading. + Copyright (C) 2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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_module.h> +#include <nss_files.h> + +void +__nss_files_functions (nss_module_functions_untyped pointers) +{ + void **fptr = pointers; + + /* Functions which are not implemented. */ +#define _nss_files_getcanonname_r NULL +#define _nss_files_gethostbyaddr2_r NULL +#define _nss_files_getpublickey NULL +#define _nss_files_getsecretkey NULL +#define _nss_files_netname2user NULL + +#undef DEFINE_NSS_FUNCTION +#define DEFINE_NSS_FUNCTION(x) *fptr++ = _nss_files_##x; +#include "function.def" + +#ifdef PTR_MANGLE + void **end = fptr; + for (fptr = pointers; fptr != end; ++fptr) + PTR_MANGLE (*fptr); +#endif +} |