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-rw-r--r--REORG.TODO/nss/getXXent.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/REORG.TODO/nss/getXXent.c b/REORG.TODO/nss/getXXent.c
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+++ b/REORG.TODO/nss/getXXent.c
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+/* Copyright (C) 1996-2017 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <libc-lock.h>
+#include <stdlib.h>
+
+#include "nsswitch.h"
+
+/*******************************************************************\
+|* Here we assume several symbols to be defined: *|
+|* *|
+|* LOOKUP_TYPE - the return type of the function *|
+|* *|
+|* GETFUNC_NAME - name of the non-reentrant getXXXent function *|
+|* *|
+|* BUFLEN - size of static buffer *|
+|* *|
+|* Optionally the following vars can be defined: *|
+|* *|
+|* NEED_H_ERRNO - an extra parameter will be passed to point to *|
+|* the global `h_errno' variable. *|
+|* *|
+\*******************************************************************/
+
+/* To make the real sources a bit prettier. */
+#define REENTRANT_GETNAME APPEND_R (GETFUNC_NAME)
+#define APPEND_R(name) APPEND_R1 (name)
+#define APPEND_R1(name) name##_r
+#define INTERNAL(name) INTERNAL1 (name)
+#define INTERNAL1(name) __##name
+
+/* Sometimes we need to store error codes in the `h_errno' variable. */
+#ifdef NEED_H_ERRNO
+# define H_ERRNO_PARM , int *h_errnop
+# define H_ERRNO_VAR &h_errno
+#else
+# define H_ERRNO_PARM
+# define H_ERRNO_VAR NULL
+#endif
+
+/* Prototype of the reentrant version. */
+extern int INTERNAL (REENTRANT_GETNAME) (LOOKUP_TYPE *resbuf, char *buffer,
+ size_t buflen, LOOKUP_TYPE **result
+ H_ERRNO_PARM);
+
+/* We need to protect the dynamic buffer handling. */
+__libc_lock_define_initialized (static, lock);
+
+/* This points to the static buffer used. */
+libc_freeres_ptr (static char *buffer);
+
+
+LOOKUP_TYPE *
+GETFUNC_NAME (void)
+{
+ static size_t buffer_size;
+ static union
+ {
+ LOOKUP_TYPE l;
+ void *ptr;
+ } resbuf;
+ LOOKUP_TYPE *result;
+ int save;
+
+ /* Get lock. */
+ __libc_lock_lock (lock);
+
+ result = (LOOKUP_TYPE *)
+ __nss_getent ((getent_r_function) INTERNAL (REENTRANT_GETNAME),
+ &resbuf.ptr, &buffer, BUFLEN, &buffer_size,
+ H_ERRNO_VAR);
+
+ save = errno;
+ __libc_lock_unlock (lock);
+ __set_errno (save);
+ return result;
+}
+
+nss_interface_function (GETFUNC_NAME)