irpmarshall.h revision 9525b14bcdeb5b5f6f95ab27c2f48f18bd2ec829
/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* $Id: irpmarshall.h,v 1.4 2005/04/27 04:56:17 sra Exp $
*/
#ifndef _IRPMARSHALL_H_INCLUDED
#define _IRPMARSHALL_H_INCLUDED
/* Hide function names */
#define irp_marshall_gr __irp_marshall_gr
#define irp_marshall_ho __irp_marshall_ho
#define irp_marshall_ne __irp_marshall_ne
#define irp_marshall_ng __irp_marshall_ng
#define irp_marshall_nw __irp_marshall_nw
#define irp_marshall_pr __irp_marshall_pr
#define irp_marshall_pw __irp_marshall_pw
#define irp_marshall_sv __irp_marshall_sv
#define irp_unmarshall_gr __irp_unmarshall_gr
#define irp_unmarshall_ho __irp_unmarshall_ho
#define irp_unmarshall_ne __irp_unmarshall_ne
#define irp_unmarshall_ng __irp_unmarshall_ng
#define irp_unmarshall_nw __irp_unmarshall_nw
#define irp_unmarshall_pr __irp_unmarshall_pr
#define irp_unmarshall_pw __irp_unmarshall_pw
#define irp_unmarshall_sv __irp_unmarshall_sv
/* See comment below on usage */
int irp_unmarshall_pw(struct passwd *, char *);
int irp_unmarshall_gr(struct group *, char *);
int irp_unmarshall_sv(struct servent *, char *);
int irp_unmarshall_pr(struct protoent *, char *);
int irp_unmarshall_ho(struct hostent *, char *);
int irp_marshall_ng(const char *, const char *, const char *,
char **, size_t *);
int irp_unmarshall_ng(const char **, const char **, const char **, char *);
int irp_unmarshall_nw(struct nwent *, char *);
int irp_unmarshall_ne(struct netent *, char *);
/*! \file
* \brief
* Functions to marshall and unmarshall various system data structures. We
* use a printable ascii format that is as close to various system config
*
* We are not forgiving with unmarhsalling misformatted buffers. In
* particular whitespace in fields is not ignored. So a formatted password
* entry "brister :1364:100:...." will yield a username of "brister "
*
* We potentially do a lot of mallocs to fill fields that are of type
* (char **) like a hostent h_addr field. Building (for example) the
* h_addr field and its associated addresses all in one buffer is
* certainly possible, but not done here.
*
* The following description is true for all the marshalling functions:
*
* int irp_marshall_XX(struct yyyy *XX, char **buffer, size_t *len);
*
* The argument XX (of type struct passwd for example) is marshalled in the
* buffer pointed at by *BUFFER, which is of length *LEN. Returns 0
* on success and -1 on failure. Failure will occur if *LEN is
* smaller than needed.
*
* If BUFFER is NULL, then *LEN is set to the size of the buffer
* needed to marshall the data and no marshalling is actually done.
*
* If *BUFFER is NULL, then a buffer large enough will be allocated
* with memget() and the size allocated will be stored in *LEN. An extra 2
* bytes will be allocated for the client to append CRLF if wanted. The
* value of *LEN will include these two bytes.
*
* All the marshalling functions produce a buffer with the fields
* separated by colons (except for the hostent marshalling, which uses '@'
* to separate fields). Fields that have multiple subfields (like the
* gr_mem field in struct group) have their subparts separated by
* commas.
*
* int irp_unmarshall_XX(struct YYYYY *XX, char *buffer);
*
* The unmashalling functions break apart the buffer and store the
* values in the struct pointed to by XX. All pointer values inside
* XX are allocated with malloc. All arrays of pointers have a NULL
* as the last element.
*/
#endif