88eb38f4ab
It is required by POSIX.1-2001. Cc: Christian Göttsche <cgzones@googlemail.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2007 - 2009, Nicolas François
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/*
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* According to the Linux-PAM documentation:
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*
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* 4.1. Care about standard library calls
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*
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* In general, writers of authorization-granting applications should
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* assume that each module is likely to call any or all 'libc' functions.
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* For 'libc' functions that return pointers to static/dynamically
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* allocated structures (ie. the library allocates the memory and the
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* user is not expected to 'free()' it) any module call to this function
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* is likely to corrupt a pointer previously obtained by the application.
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* The application programmer should either re-call such a 'libc'
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* function after a call to the Linux-PAM library, or copy the structure
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* contents to some safe area of memory before passing control to the
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* Linux-PAM library.
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*
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* Two important function classes that fall into this category are
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* getpwnam(3) and syslog(3).
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*
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* This file provide wrapper to the getpwnam or getpwnam_r functions.
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*/
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#include <config.h>
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#include "groupio.h"
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#define LOOKUP_TYPE struct group
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#define FUNCTION_NAME getgrnam
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#define ARG_TYPE const char *
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#define ARG_NAME name
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#define DUP_FUNCTION __gr_dup
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#define HAVE_FUNCTION_R 1
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#include "xgetXXbyYY.c"
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