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Annotation of embedaddon/arping/src/windows.c, revision 1.1.1.1

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:  */