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Annotation of ansh/src/proc.c, revision 1.2

1.1       misho       1: /*************************************************************************
                      2:  * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitnet.org>
                      3:  *  by Michael Pounov <misho@elwix.org>
                      4:  *
                      5:  * $Author: misho $
1.2     ! misho       6:  * $Id: proc.c,v 1.1.1.1.2.1 2011/10/13 16:08:52 misho Exp $
1.1       misho       7:  *
1.2     ! misho       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
        !            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: */
1.1       misho      46: #include "global.h"
                     47: #include "anshd.h"
                     48: #include "proc.h"
                     49: 
                     50: 
                     51: struct tagProc *
                     52: InitProc(int h, struct sockaddr *sa, u_short id, int len)
                     53: {
                     54:        struct tagProc *proc;
                     55: 
                     56:        FTRACE(5);
                     57: 
                     58:        proc = malloc(sizeof(struct tagProc));
                     59:        if (!proc) {
                     60:                ERR("Not enough memory #%d - %s", errno, strerror(errno));
                     61:                return NULL;
                     62:        } else
                     63:                memset(proc, 0, sizeof(struct tagProc));
                     64:        proc->proc_sock = h;
                     65:        proc->proc_id = id;
                     66:        if (sa)
                     67:                memcpy(&proc->proc_cli, sa, sizeof(struct sockaddr));
                     68: 
                     69:        proc->proc_blen = len;
                     70:        proc->proc_buf_[0] = malloc(proc->proc_blen);
                     71:        if (!proc->proc_buf_[0]) {
                     72:                free(proc);
                     73:                proc = NULL;
                     74:        }
                     75:        proc->proc_buf_[1] = malloc(proc->proc_blen);
                     76:        if (!proc->proc_buf_[1]) {
                     77:                free(proc->proc_buf_[0]);
                     78:                free(proc);
                     79:                proc = NULL;
                     80:        }
                     81: 
                     82:        SLIST_INSERT_HEAD(&pH, proc, proc_next);
                     83:        return proc;
                     84: }
                     85: 
                     86: void
                     87: FiniProcByID(u_short id)
                     88: {
                     89:        struct tagProc *proc;
                     90: 
                     91:        SLIST_FOREACH(proc, &pH, proc_next)
                     92:                if (proc->proc_id == id) {
                     93:                        SLIST_REMOVE(&pH, proc, tagProc, proc_next);
                     94:                        FreeProc(&proc);
                     95:                }
                     96: }
                     97: 
                     98: void
                     99: FreeProc(struct tagProc ** __restrict proc)
                    100: {
                    101:        FTRACE(5);
                    102: 
                    103:        assert(proc && *proc);
                    104:        if (!*proc)
                    105:                return;
                    106: 
                    107:        if ((*proc)->proc_buf_[1])
                    108:                free((*proc)->proc_buf_[1]);
                    109:        if ((*proc)->proc_buf_[0])
                    110:                free((*proc)->proc_buf_[0]);
                    111:        free(*proc);
                    112:        *proc = NULL;
                    113: }
                    114: 
                    115: void
                    116: DestroyProc()
                    117: {
                    118:        struct tagProc *proc;
                    119: 
                    120:        while ((proc = SLIST_FIRST(&pH))) {
                    121:                SLIST_REMOVE_HEAD(&pH, proc_next);
                    122:                FreeProc(&proc);
                    123:        }
                    124: }