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Annotation of tftpd/src/exec.c, revision 1.3

1.3     ! misho       1: /*************************************************************************
        !             2: * (C) 2014 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
        !             3: *  by Michael Pounov <misho@elwix.org>
        !             4: *
        !             5: * $Author: misho $
        !             6: * $Id: exec.c,v 1.2.6.1 2014/02/21 09:07:08 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 - 2014
        !            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: */
1.2       misho      46: #include "global.h"
                     47: #include "exec.h"
                     48: 
                     49: 
                     50: void *
                     51: execProg(sched_task_t *task)
                     52: {
                     53:        pid_t pid, res;
                     54:        const char *str, *addr;
                     55:        char port[STRSIZ] = { [0 ... STRSIZ - 1] = 0 }, 
                     56:             opc[STRSIZ] = { [0 ... STRSIZ - 1] = 0 };
                     57:        ait_val_t v = AIT_VAL_INITIALIZER(v);
                     58:        int stat;
                     59: 
                     60:        ETRACE();
                     61: 
                     62:        str = cfg_getAttribute(&cfg, "exec_on", TASK_ARG(task));
                     63:        if (!str)
                     64:                taskExit(task, NULL);
                     65: 
                     66:        switch (pid = vfork()) {
                     67:                case -1:
                     68:                        ESYSERR(0);
                     69:                        break;
                     70:                case 0:
                     71:                        snprintf(opc, STRSIZ, "%hu", (u_short) TASK_DATLEN(task));
                     72:                        snprintf(port, STRSIZ, "%hu", (u_short) e_n2port(&cli.addr));
                     73:                        addr = e_n2addr(&cli.addr, &v);
                     74:                        EVERBOSE(1, "Execute %s %s %s %s %s %s %s", str, TASK_ARG(task), opc, 
                     75:                                        cli.file, cli.mode, addr, port);
                     76:                        execl(_PATH_BSHELL, _PATH_BSHELL, str, TASK_ARG(task), opc, 
                     77:                                        cli.file, cli.mode, addr, port, NULL);
                     78:                        AIT_FREE_VAL(&v);
                     79:                        _exit(127);
                     80:                        break;
                     81:                default:
                     82:                        EVERBOSE(2, "Wait to finish executed program %s", str);
                     83:                        do {
                     84:                                res = waitpid(pid, &stat, 0);
                     85:                        } while (res == -1 && errno == EINTR);
                     86:                        break;
                     87:        }
                     88: 
                     89:        taskExit(task, NULL);
                     90: }