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version 5.1

    1: /*************************************************************************
    2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
    3: *  by Michael Pounov <misho@openbsd-bg.org>
    4: *
    5: * $Author: misho $
    6: * $Id: aitrpc.c,v 1.9 2013/04/02 15:50:14 misho Exp $
    7: *
    8: **************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #include "global.h"
   47: 
   48: 
   49: #pragma GCC visibility push(hidden)
   50: 
   51: int rpc_Errno;
   52: char rpc_Error[STRSIZ];
   53: 
   54: inline int
   55: rpc_funcs_cmp(struct tagRPCFunc *a, struct tagRPCFunc *b)
   56: {
   57: 	int ret;
   58: 
   59: 	assert(a && b);
   60: 
   61: 	ret = AIT_KEY(&a->func_name) - AIT_KEY(&b->func_name);
   62: 
   63: 	if (ret < 0)
   64: 		return -1;
   65: 	else if (ret > 0)
   66: 		return 1;
   67: 
   68: 	return ret;
   69: }
   70: 
   71: AVL_GENERATE(tagRPCFuncs, tagRPCFunc, func_node, rpc_funcs_cmp);
   72: 
   73: #pragma GCC visibility pop
   74: 
   75: // rpc_GetErrno() Get error code of last operation
   76: inline int
   77: rpc_GetErrno()
   78: {
   79: 	return rpc_Errno;
   80: }
   81: 
   82: // rpc_GetError() Get error text of last operation
   83: inline const char *
   84: rpc_GetError()
   85: {
   86: 	return rpc_Error;
   87: }
   88: 
   89: // rpc_SetErr() Set error to variables for internal use!!!
   90: inline void
   91: rpc_SetErr(int eno, char *estr, ...)
   92: {
   93: 	va_list lst;
   94: 
   95: 	rpc_Errno = eno;
   96: 	memset(rpc_Error, 0, sizeof rpc_Error);
   97: 	va_start(lst, estr);
   98: 	vsnprintf(rpc_Error, sizeof rpc_Error, estr, lst);
   99: 	va_end(lst);
  100: }
  101: 
  102: 
  103: /*
  104:  * rpc_chkPktSession() - Check RPC session
  105:  *
  106:  * @p = packet session
  107:  * @s = active session
  108:  * return: -1, 1, 2, 3 are errors or 0 ok
  109:  */
  110: inline int
  111: rpc_chkPktSession(rpc_sess_t *p, rpc_sess_t *s)
  112: {
  113: 	if (!p || !s)
  114: 		return -1;
  115: 
  116: 	if (p->sess_version != s->sess_version)
  117: 		return 1;
  118: 	if (p->sess_instance != s->sess_instance)
  119: 		return 2;
  120: 
  121: 	return 0;
  122: }
  123: 
  124: /*
  125:  * rpc_addPktSession() - Prepare session into network format
  126:  *
  127:  * @p = packet session
  128:  * @s = host session
  129:  * return: -1 error or 0 ok
  130:  */
  131: inline int
  132: rpc_addPktSession(rpc_sess_t *p, rpc_sess_t *s)
  133: {
  134: 	if (!p || !s)
  135: 		return -1;
  136: 
  137: 	p->sess_version = s->sess_version;
  138: 	p->sess_instance = s->sess_instance;
  139: 
  140: 	return 0;
  141: }