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Annotation of embedaddon/hping2/sendhcmp.c, revision 1.1.1.1

1.1       misho       1: /* 
                      2:  * $smu-mark$ 
                      3:  * $name: sendhcmp.c$ 
                      4:  * $author: Salvatore Sanfilippo <antirez@invece.org>$ 
                      5:  * $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$ 
                      6:  * $license: This software is under GPL version 2 of license$ 
                      7:  * $date: Fri Nov  5 11:55:49 MET 1999$ 
                      8:  * $rev: 4$ 
                      9:  */ 
                     10: 
                     11: #include <string.h>
                     12: #include <assert.h>
                     13: #include <unistd.h>
                     14: #include <signal.h> /* SIGALARM macro */
                     15: 
                     16: #include "hping2.h"
                     17: #include "globals.h"
                     18: 
                     19: #define MUST_BE_UNREACHED 0
                     20: 
                     21: void    send_hcmp(__u8 type, __u32 arg)
                     22: {
                     23:        static struct hcmphdr hcmph; /* static because we export this */
                     24:                                     /* to data_handler() */
                     25: 
                     26:        data_size = signlen + sizeof(struct hcmphdr);
                     27: 
                     28:        /* build hcmp header */
                     29:        memset(&hcmph, 0, sizeof(hcmph));
                     30:        hcmph.type = type;
                     31:        switch (type)
                     32:        {
                     33:        case HCMP_RESTART:
                     34:                hcmph.typedep.seqnum = htons((__u16) arg);
                     35:                break;
                     36:        case HCMP_SOURCE_QUENCH:
                     37:        case HCMP_SOURCE_STIRUP:
                     38:                hcmph.typedep.usec = htonl(arg);
                     39:                break;
                     40:        default:
                     41:                assert(MUST_BE_UNREACHED);
                     42:        }
                     43: 
                     44:        /* use hcmphdr_p to transmit hcmph to data_handler() */
                     45:        hcmphdr_p = &hcmph;
                     46:        kill(getpid(), SIGALRM); /* send hcmp */
                     47: 
                     48:        return;
                     49: }