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a9368c34d7
The function uses the internal service_user type, so it is not really usable from the outside of glibc. Rename the function to __nss_database_lookup2 for internal use, and change __nss_database_lookup to always indicate failure to the caller. __nss_next already was a compatibility symbol. The new implementation always fails and no longer calls __nss_next2. unscd, the alternative nscd implementation, does not use __nss_database_lookup, so it is not affected by this change.
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/* Compatibility stubs of accidentally exported __nss_*_lookup functions.
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Copyright (C) 2017-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <nsswitch.h>
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#include <shlib-compat.h>
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_27)
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# include <errno.h>
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/* On i386, the function calling convention changed from the standard
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ABI calling convention to three register parameters in glibc 2.8.
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The following error-returning stub happens to be compatible with
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glibc 2.7 and earlier and glibc 2.8 and later, even on i386. */
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int
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attribute_compat_text_section
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__nss_passwd_lookup (service_user **ni, const char *fct_name, void **fctp)
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{
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__set_errno (ENOSYS);
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return -1;
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}
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compat_symbol (libc, __nss_passwd_lookup, __nss_passwd_lookup, GLIBC_2_0);
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strong_alias (__nss_passwd_lookup, __nss_group_lookup)
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compat_symbol (libc, __nss_group_lookup, __nss_group_lookup, GLIBC_2_0);
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strong_alias (__nss_passwd_lookup, __nss_hosts_lookup)
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compat_symbol (libc, __nss_hosts_lookup, __nss_hosts_lookup, GLIBC_2_0);
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#endif /* SHLIB_COMPAT */
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_30)
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/* These functions were exported under a non-GLIBC_PRIVATE version,
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even though it is not usable externally due to the service_user
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type dependency. */
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int
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attribute_compat_text_section
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__nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
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int all_values)
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{
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return -1;
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}
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compat_symbol (libc, __nss_next, __nss_next, GLIBC_2_0);
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int
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attribute_compat_text_section
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__nss_database_lookup (const char *database, const char *alternate_name,
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const char *defconfig, service_user **ni)
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{
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*ni = NULL;
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return -1;
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}
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compat_symbol (libc, __nss_database_lookup, __nss_database_lookup, GLIBC_2_0);
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#endif /* SHLIB_COMPAT */
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