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Fix definion of udphdr and use it.

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svn path=/trunk/; revision=12997
This commit is contained in:
Filip Navara 2005-01-12 21:02:21 +00:00
parent 85cffe692b
commit e8d6b09951
1 changed files with 26 additions and 26 deletions
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52
reactos/apps/utils/net/tracert/tracert.c
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@ -231,10 +231,10 @@ static char sccsid[] = "@(#)traceroute.c 8.1 (Berkeley) 6/6/93";
#include <winsock.h>
//void print(buf, cc, from);
char * inetname(in);
double deltaT(t1p, t2p);
char * inetname(struct in_addr);
double deltaT(struct timeval *, struct timeval *);
void usage();
void send_probe(seq, ttl);
void send_probe(int, int);
#define bzero( ptr, count ) memset( ptr, 0, count )
#define bcopy(src,dest,len) memcpy(dest,src,len)
@ -336,22 +336,22 @@ int gettimeofday(struct timeval *tv, struct timezone *tz)
#define Sprintf (void)sprintf
#define Printf (void)printf
// Define the UDP header
//
typedef struct udp_hdr
{
unsigned short src_portno; // Source port number
unsigned short dst_portno; // Destination port number
unsigned short udp_length; // UDP packet length
unsigned short udp_checksum; // UDP checksum (optional)
} UDP_HDR, *PUDP_HDR;
/*
* Define the UDP header
*/
typedef struct udphdr {
u_short uh_dport;
u_short uh_sport;
u_short uh_sum;
u_short uh_ulen;
} udphdr;
/*
* format of a (udp) probe packet.
*/
struct opacket {
struct ip ip;
UDP_HDR udp;
udphdr udp;
u_char seq; /* sequence number of this packet */
u_char ttl; /* ttl packet left with */
struct timeval tv; /* time packet left */
@ -428,12 +428,6 @@ main(argc, argv)
WSADATA wsadata;
INT status;
status = WSAStartup(MAKEWORD(2, 2), &wsadata);
if (status != 0) {
printf("Could not initialize winsock dll.\n");
return FALSE;
}
on = 1;
seq = tos = 0;
to = (struct sockaddr_in *)&whereto;
@ -512,6 +506,12 @@ main(argc, argv)
if (argc < 1)
usage();
status = WSAStartup(MAKEWORD(2, 2), &wsadata);
if (status != 0) {
printf("Could not initialize winsock dll.\n");
return FALSE;
}
setlinebuf (stdout);
(void) bzero((char *)&whereto, sizeof(struct sockaddr));
@ -736,10 +736,10 @@ send_probe(seq, ttl)
ip->ip_v = IPVERSION;
ip->ip_id = htons(ident+seq);
// up->uh_sport = htons(ident);
// up->uh_dport = htons(port+seq);
// up->uh_ulen = htons((u_short)(datalen - sizeof(struct ip)));
// up->uh_sum = 0;
up->uh_sport = htons(ident);
up->uh_dport = htons(port+seq);
up->uh_ulen = htons((u_short)(datalen - sizeof(struct ip)));
up->uh_sum = 0;
op->seq = seq;
op->ttl = ttl;
@ -826,9 +826,9 @@ packet_ok(buf, cc, from, seq)
hip = &icp->icmp_ip;
hlen = hip->ip_hl << 2;
up = (struct udphdr *)((u_char *)hip + hlen);
// if (hlen + 12 <= cc && hip->ip_p == IPPROTO_UDP &&
// up->uh_sport == htons(ident) &&
// up->uh_dport == htons(port+seq))
if (hlen + 12 <= cc && hip->ip_p == IPPROTO_UDP &&
up->uh_sport == htons(ident) &&
up->uh_dport == htons(port+seq))
if (hlen + 12 <= cc && hip->ip_p == IPPROTO_UDP)
return (type == ICMP_TIMXCEED? -1 : code+1);
}