diff options
Diffstat (limited to 'nss/getXXbyYY.c')
-rw-r--r-- | nss/getXXbyYY.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/nss/getXXbyYY.c b/nss/getXXbyYY.c new file mode 100644 index 0000000000..5eb9ee9c87 --- /dev/null +++ b/nss/getXXbyYY.c @@ -0,0 +1,71 @@ +/* Copyright (C) 1996 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include "../nss/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 + +/* 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 +#endif + + +/* Prototype for reentrant version we use here. */ +extern LOOKUP_TYPE *REENTRANT_NAME (ADD_PARAMS, LOOKUP_TYPE *result, + char *buffer, int buflen H_ERRNO_PARM); + +LOOKUP_TYPE * +FUNCTION_NAME (ADD_PARAMS) +{ + static LOOKUP_TYPE result; + static char buffer[BUFLEN]; + + return REENTRANT_NAME (ADD_VARIABLES, &result, buffer, BUFLEN H_ERRNO_VAR); +} |