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Annotation of embedaddon/arping/src/windows.c, revision 1.1

1.1     ! misho       1: /* arping/src/windows.c
        !             2:  *
        !             3:  *  Copyright (C) 2000-2011 Thomas Habets <thomas@habets.se>
        !             4:  *
        !             5:  *  This library is free software; you can redistribute it and/or
        !             6:  *  modify it under the terms of the GNU General Public
        !             7:  *  License as published by the Free Software Foundation; either
        !             8:  *  version 2 of the License, or (at your option) any later version.
        !             9:  *
        !            10:  *  This library is distributed in the hope that it will be useful,
        !            11:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            13:  *  General Public License for more details.
        !            14:  *
        !            15:  *  You should have received a copy of the GNU General Public License along
        !            16:  *  with this program; if not, write to the Free Software Foundation, Inc.,
        !            17:  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
        !            18:  */
        !            19: 
        !            20: /***************
        !            21:  * This code has worked at one point, but I'm not a Windows programmer
        !            22:  * so it's not being maintained. Should not be hard to get working
        !            23:  * again though for someone who is.
        !            24:  ***************/
        !            25: #if HAVE_CONFIG_H
        !            26: #include "config.h"
        !            27: #endif
        !            28: 
        !            29: #include <pcap.h>
        !            30: 
        !            31: #include "arping.h"
        !            32: 
        !            33: /**
        !            34:  *
        !            35:  */
        !            36: void
        !            37: do_signal_init()
        !            38: {
        !            39:        SetConsoleCtrlHandler(arping_console_ctrl_handler, TRUE);
        !            40:        /* SetConsoleCtrlHandler(NULL, TRUE); */
        !            41: }
        !            42: 
        !            43: /**
        !            44:  * untested for a long time. Maybe since arping 2.05 or so.
        !            45:  */
        !            46: static void
        !            47: ping_recv_win32(pcap_t *pcap, uint32_t packetwait, pcap_handler func)
        !            48: {
        !            49:         struct timespec tv,tv2;
        !            50:        char done = 0;
        !            51:        /* windows won't let us do select() */
        !            52:        getclock(&tv2);
        !            53: 
        !            54:        while (!done && !time_to_die) {
        !            55:               struct pcap_pkthdr *pkt_header;
        !            56:               u_char *pkt_data;
        !            57:               if (pcap_next_ex(pcap, &pkt_header, &pkt_data) == 1) {
        !            58:                       func(pcap, pkt_header, pkt_data);
        !            59:               }
        !            60:                getclock(&tv);
        !            61: 
        !            62:                /*
        !            63:                 * setup next timespec, not very exact
        !            64:                 */
        !            65:                tv.tv_sec  = (packetwait / 1000000)
        !            66:                       - (tv.tv_sec - tv2.tv_sec);
        !            67:               tv.tv_nsec = (packetwait % 1000000)
        !            68:                        - (tv.tv_nsec - tv2.tv_nsec);
        !            69:                fixup_timespec(&tv);
        !            70: 
        !            71:               usleep(10);
        !            72:               if (tv.tv_sec < 0) {
        !            73:                       done=1;
        !            74:               }
        !            75:        }
        !            76: }
        !            77: 
        !            78: /**
        !            79:  * Fall back on getting device name from pcap.
        !            80:  */
        !            81: const char *
        !            82: arping_lookupdev_default(int32_t srcip, uint32_t dstip,
        !            83:                         char *ebuf)
        !            84: {
        !            85:        WCHAR buf[LIBNET_ERRBUF_SIZE + PCAP_ERRBUF_SIZE];
        !            86:        WCHAR* ret = (WCHAR*)pcap_lookupdev((char*)buf);
        !            87:        if (ret != NULL) {
        !            88:                wcstombs(ebuf, ret, LIBNET_ERRBUF_SIZE + PCAP_ERRBUF_SIZE);
        !            89:                return ebuf;
        !            90:        }
        !            91:        return NULL;
        !            92: }
        !            93: 
        !            94: static BOOL WINAPI arping_console_ctrl_handler(DWORD dwCtrlType)
        !            95: {
        !            96:         if (verbose) {
        !            97:                 printf("arping_console_ctrl_handler(%d)\n", (int)dwCtrlType);
        !            98:        }
        !            99:        time_to_die = 1;
        !           100: 
        !           101:         if (0) {
        !           102:                 /* if SetConsoleCtrlHandler() does what I think, this
        !           103:                    isn't needed */
        !           104:                 if (display == NORMAL) {
        !           105:                         printf("\n--- %s statistics ---\n"
        !           106:                                "%d packets transmitted, %d packets received, "
        !           107:                                "%3.0f%% "
        !           108:                                "unanswered\n", target, numsent, numrecvd,
        !           109:                                100.0
        !           110:                                - 100.0 * (float)(numrecvd)/(float)numsent);
        !           111:                 }
        !           112:         }
        !           113:        return TRUE;
        !           114: }
        !           115: /* ---- Emacs Variables ----
        !           116:  * Local Variables:
        !           117:  * c-basic-offset: 8
        !           118:  * indent-tabs-mode: nil
        !           119:  * End:
        !           120:  */