diff options
Diffstat (limited to 'newlib/libc/sys/linux/net/getXXbyYY_r.c')
| -rw-r--r-- | newlib/libc/sys/linux/net/getXXbyYY_r.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/newlib/libc/sys/linux/net/getXXbyYY_r.c b/newlib/libc/sys/linux/net/getXXbyYY_r.c deleted file mode 100644 index 326df94b7..000000000 --- a/newlib/libc/sys/linux/net/getXXbyYY_r.c +++ /dev/null @@ -1,292 +0,0 @@ -/* Copyright (C) 1996-2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <assert.h> -#include <errno.h> -#include <stdbool.h> -#include "nsswitch.h" -#ifdef USE_NSCD -# include <nscd/nscd_proto.h> -#endif -#ifdef NEED__RES_HCONF -# include "res_hconf.h" -#endif -#ifdef NEED__RES -# include <resolv.h> -#endif -/*******************************************************************\ -|* 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 *| -|* *| -|* Optionally the following vars can be defined: *| -|* *| -|* NEED_H_ERRNO - an extra parameter will be passed to point to *| -|* the global `h_errno' variable. *| -|* *| -|* NEED__RES - the global _res variable might be used so we *| -|* will have to initialize it if necessary *| -|* *| -|* PREPROCESS - code run before anything else *| -|* *| -|* POSTPROCESS - code run after the lookup *| -|* *| -\*******************************************************************/ - -/* 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 -#define NEW(name) NEW1 (name) -#define NEW1(name) __new_##name - -#ifdef USE_NSCD -# define NSCD_NAME ADD_NSCD (REENTRANT_NAME) -# define ADD_NSCD(name) ADD_NSCD1 (name) -# define ADD_NSCD1(name) __nscd_##name -# define NOT_USENSCD_NAME ADD_NOT_NSCDUSE (DATABASE_NAME) -# define ADD_NOT_NSCDUSE(name) ADD_NOT_NSCDUSE1 (name) -# define ADD_NOT_NSCDUSE1(name) __nss_not_use_nscd_##name -#endif - -#define FUNCTION_NAME_STRING STRINGIZE (FUNCTION_NAME) -#define REENTRANT_NAME_STRING STRINGIZE (REENTRANT_NAME) -#define DATABASE_NAME_STRING STRINGIZE (DATABASE_NAME) -#define STRINGIZE(name) STRINGIZE1 (name) -#define STRINGIZE1(name) #name - -#ifndef DB_LOOKUP_FCT -# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup) -# define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post) -# define CONCAT3_2(Pre, Name, Post) Pre##Name##Post -#endif - -/* 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_errnop -# define H_ERRNO_VAR_P h_errnop -#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 - -/* Type of the lookup function we need here. */ -typedef enum nss_status (*lookup_function) (ADD_PARAMS, LOOKUP_TYPE *, char *, - size_t, int * H_ERRNO_PARM); - -/* The lookup function for the first entry of this service. */ -extern int DB_LOOKUP_FCT (service_user **nip, const char *name, void **fctp) - internal_function; -libc_hidden_proto (DB_LOOKUP_FCT) - - -int -INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, - size_t buflen, LOOKUP_TYPE **result H_ERRNO_PARM) -{ - static service_user *startp; - static lookup_function start_fct; - service_user *nip; - union - { - lookup_function l; - void *ptr; - } fct; - - int no_more; - enum nss_status status = NSS_STATUS_UNAVAIL; -#ifdef USE_NSCD - int nscd_status; -#endif -#ifdef NEED_H_ERRNO - bool any_service = false; -#endif - -#ifdef PREPROCESS - PREPROCESS; -#endif - -#ifdef HANDLE_DIGITS_DOTS - switch (__nss_hostname_digits_dots (name, resbuf, &buffer, NULL, - buflen, result, &status, AF_VAL, - H_ERRNO_VAR_P)) - { - case -1: - return errno; - case 1: - goto done; - } -#endif - -#ifdef USE_NSCD - if (NOT_USENSCD_NAME > 0 && ++NOT_USENSCD_NAME > NSS_NSCD_RETRY) - NOT_USENSCD_NAME = 0; - - if (!NOT_USENSCD_NAME) - { - nscd_status = NSCD_NAME (ADD_VARIABLES, resbuf, buffer, buflen, result - H_ERRNO_VAR); - if (nscd_status >= 0) - return nscd_status; - } -#endif - - if (startp == NULL) - { - no_more = DB_LOOKUP_FCT (&nip, REENTRANT_NAME_STRING, &fct.ptr); - if (no_more) - startp = (service_user *) -1l; - else - { - startp = nip; - start_fct = fct.l; - -#ifdef NEED__RES - /* The resolver code will really be used so we have to - initialize it. */ - if (__res_maybe_init (&_res, 0) == -1) - { - *h_errnop = NETDB_INTERNAL; - *result = NULL; - return errno; - } -#endif /* need _res */ -#ifdef NEED__RES_HCONF - if (!_res_hconf.initialized) - _res_hconf_init (); -#endif /* need _res_hconf */ - } - } - else - { - fct.l = start_fct; - no_more = (nip = startp) == (service_user *) -1l; - } - - while (no_more == 0) - { -#ifdef NEED_H_ERRNO - any_service = true; -#endif - - status = DL_CALL_FCT (fct.l, (ADD_VARIABLES, resbuf, buffer, buflen, - &errno H_ERRNO_VAR)); - - /* The status is NSS_STATUS_TRYAGAIN and errno is ERANGE the - provided buffer is too small. In this case we should give - the user the possibility to enlarge the buffer and we should - not simply go on with the next service (even if the TRYAGAIN - action tells us so). */ - if (status == NSS_STATUS_TRYAGAIN -#ifdef NEED_H_ERRNO - && *h_errnop == NETDB_INTERNAL -#endif - && errno == ERANGE) - break; - - no_more = __nss_next (&nip, REENTRANT_NAME_STRING, - &fct.ptr, status, 0); - } - -#ifdef HANDLE_DIGITS_DOTS -done: -#endif - *result = status == NSS_STATUS_SUCCESS ? resbuf : NULL; -#ifdef NEED_H_ERRNO - if (status != NSS_STATUS_SUCCESS && ! any_service) - /* We were not able to use any service. */ - *h_errnop = NO_RECOVERY; -#endif -#ifdef POSTPROCESS - POSTPROCESS; -#endif - - int res; - if (status == NSS_STATUS_SUCCESS || status == NSS_STATUS_NOTFOUND) - res = 0; - /* Don't pass back ERANGE if this is not for a too-small buffer. */ - else if (errno == ERANGE && status != NSS_STATUS_TRYAGAIN) - res = EINVAL; -#ifdef NEED_H_ERRNO - /* These functions only set errno if h_errno is NETDB_INTERNAL. */ - else if (status == NSS_STATUS_TRYAGAIN && *h_errnop != NETDB_INTERNAL) - res = EAGAIN; -#endif - else - return errno; - - __set_errno (res); - return res; -} - - -#include <shlib-compat.h> -#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1_2) -#define OLD(name) OLD1 (name) -#define OLD1(name) __old_##name - -int -attribute_compat_text_section -OLD (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer, - size_t buflen, LOOKUP_TYPE **result H_ERRNO_PARM) -{ - int ret = INTERNAL (REENTRANT_NAME) (ADD_VARIABLES, resbuf, buffer, - buflen, result H_ERRNO_VAR); - - if (ret != 0 || result == NULL) - ret = -1; - - return ret; -} - -#define do_symbol_version(real, name, version) \ - compat_symbol (libc, real, name, version) -do_symbol_version (OLD (REENTRANT_NAME), REENTRANT_NAME, GLIBC_2_0); -#endif - -/* As INTERNAL (REENTRANT_NAME) may be hidden, we need an alias - in between so that the REENTRANT_NAME@@GLIBC_2.1.2 is not - hidden too. */ -strong_alias (INTERNAL (REENTRANT_NAME), NEW (REENTRANT_NAME)); - -#define do_default_symbol_version(real, name, version) \ - versioned_symbol (libc, real, name, version) -do_default_symbol_version (NEW (REENTRANT_NAME), - REENTRANT_NAME, GLIBC_2_1_2); - -static_link_warning (REENTRANT_NAME) |