自动ftp的C源代码 [转]

/*
description: auto execute ftp
the usage of popen()
在SCO5.0.6下编译通过
*/

#include<stdio.h> 
#include<unistd.h> 
main() 
{ 
FILE *fp; 
fp=popen("ftp -inv 127.0.0.1","w"); 

if(fp==NULL) 
{ 
perror("popen"); 
exit(1); 
} 
fprintf(fp,"user USERNAME PASSWD\n"); 
fprintf(fp,"ls\n"); 
pclose(fp); 
printf("ok\n"); 
}                       

/*
  A typical call may be（一个典型的应用）:                     
                                             
     char *cmd = "ls *.c";                   
                                             
     FILE *ptr;                              
                                             
     if ((ptr = popen(cmd, "r")) != NULL)    
                                             
           while (fgets(buf, n, ptr) != NULL)
                                             
                   (void) printf("%s ",buf); 
*/