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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /nss/getXXbyYY.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.bz2 glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'nss/getXXbyYY.c')
-rw-r--r-- | nss/getXXbyYY.c | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/nss/getXXbyYY.c b/nss/getXXbyYY.c deleted file mode 100644 index d027b14250..0000000000 --- a/nss/getXXbyYY.c +++ /dev/null @@ -1,154 +0,0 @@ -/* 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 <assert.h> -#include <errno.h> -#include <libc-lock.h> -#include <stdlib.h> -#include <resolv.h> - -#include "nsswitch.h" - -/*******************************************************************\ -|* Here we assume several symbols to be defined: *| -|* *| -|* LOOKUP_TYPE - the return type of the function *| -|* *| -|* FUNCTION_NAME - name of the non-reentrant function *| -|* *| -|* DATABASE_NAME - name of the database the function accesses *| -|* (e.g., host, services, ...) *| -|* *| -|* ADD_PARAMS - additional parameter, can vary in number *| -|* *| -|* ADD_VARIABLES - names of additional parameter *| -|* *| -|* BUFLEN - length of buffer allocated for the non *| -|* reentrant version *| -|* *| -|* 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_NAME APPEND_R (FUNCTION_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_tmp -# define H_ERRNO_VAR_P &h_errno_tmp -#else -# define H_ERRNO_PARM -# define H_ERRNO_VAR -# define H_ERRNO_VAR_P NULL -#endif - -#ifdef HAVE_AF -# define AF_VAL af -#else -# define AF_VAL AF_INET -#endif - -/* Prototype for reentrant version we use here. */ -extern int INTERNAL (REENTRANT_NAME) (ADD_PARAMS, 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 * -FUNCTION_NAME (ADD_PARAMS) -{ - static size_t buffer_size; - static LOOKUP_TYPE resbuf; - LOOKUP_TYPE *result; -#ifdef NEED_H_ERRNO - int h_errno_tmp = 0; -#endif - - /* Get lock. */ - __libc_lock_lock (lock); - - if (buffer == NULL) - { - buffer_size = BUFLEN; - buffer = (char *) malloc (buffer_size); - } - -#ifdef HANDLE_DIGITS_DOTS - if (buffer != NULL) - { - if (__nss_hostname_digits_dots (name, &resbuf, &buffer, - &buffer_size, 0, &result, NULL, AF_VAL, - H_ERRNO_VAR_P)) - goto done; - } -#endif - - while (buffer != NULL - && (INTERNAL (REENTRANT_NAME) (ADD_VARIABLES, &resbuf, buffer, - buffer_size, &result H_ERRNO_VAR) - == ERANGE) -#ifdef NEED_H_ERRNO - && h_errno_tmp == NETDB_INTERNAL -#endif - ) - { - char *new_buf; - buffer_size *= 2; - new_buf = (char *) realloc (buffer, buffer_size); - if (new_buf == NULL) - { - /* We are out of memory. Free the current buffer so that the - process gets a chance for a normal termination. */ - free (buffer); - __set_errno (ENOMEM); - } - buffer = new_buf; - } - - if (buffer == NULL) - result = NULL; - -#ifdef HANDLE_DIGITS_DOTS -done: -#endif - /* Release lock. */ - __libc_lock_unlock (lock); - -#ifdef NEED_H_ERRNO - if (h_errno_tmp != 0) - __set_h_errno (h_errno_tmp); -#endif - - return result; -} - -nss_interface_function (FUNCTION_NAME) |