prog.c

UNIX下的FTP源代码

        if (ftp_rmdir ( &ftpinfo, "prem" ) < 0) {                               
                printf("error: ftp_rmdir failed.\n");                           
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * quit the FTP session decently.                                       
         */                                                                     
        if (ftp_bye( &ftpinfo ) < 0) {                                          
                printf("error: ftp_bye failed.\n");                             
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * use ftp_login to login into the remote ftp server and quit.          
         */                                                                     
        if (ftp_login ( &ftpinfo, host, "bank", "", NULL ) < 0) {               
                printf("error: ftp_login failed.\n");                           
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * do a 'put' to the remote host.                                       
         */                                                                     
        if (ftp_putfile ( &ftpinfo, "/tmp/passwd", "c:/passwd" ) < 0) {         
                printf("error: ftp_putfile failed.\n");                         
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
        else {                                                                  
                printf("transfer speed: \n");                                   
                printf("\t\tbytes transferred = %ld\n",                         
                                ftpinfo.speed.size_bytes);                      
                printf("\t\ttime taken        = %.2g seconds\n",                
                                ftpinfo.speed.seconds);                         
                printf("\t\trate              = %.2g Kbytes/s\n",               
                                ftpinfo.speed.kbs);                             
        }                                                                       
                                                                                
        /*                                                                      
         * set transfer mode back to ascii - using ftp_settype.                 
         */                                                                     
        if (ftp_settype ( &ftpinfo, ASCII ) < 0) {                              
                printf("error: ftp_settype failed in ascii mode.\n");           
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * do a 'get' from the remote host.                                     
         */                                                                     
        if (ftp_getfile ( &ftpinfo, "/tmp/passwd","c:/passwd" )< 0){            
                printf("error: ftp_getfile failed.\n");                         
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
        else {                                                                  
                printf("transfer speed: \n");                                   
                printf("\t\tbytes transferred = %ld\n",                         
                                ftpinfo.speed.size_bytes);                      
                printf("\t\ttime taken       = %.2g seconds\n",                 
                                ftpinfo.speed.seconds);                         
                printf("\t\trate             = %.2g Kbytes/s\n",                
                                ftpinfo.speed.kbs);                             
        }                                                                       
                                                                                
        /*                                                                      
         * list /tmp on remote host to file /tmp/test.                          
         */                                                                     
        if (ftp_dir ( &ftpinfo, "/tmp", "/tmp/test" ) < 0) {                    
                printf("error: ftp_dir failed.\n");                             
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * list /tmp on remote host to stdout.                                  
         */                                                                     
        if (ftp_dir ( &ftpinfo, "/tmp", NULL ) < 0) {                           
                printf("error: ftp_dir failed to write to stdout.\n");          
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * delete the file on the remote host.                                  
         */                                                                     
        if (ftp_del ( &ftpinfo, "/tmp/asciifile" ) < 0) {                       
                printf("error: ftp_del failed.\n");                             
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * quit the FTP sessions decently.                                      
         */                                                                     
        if (ftp_bye( &ftpinfo ) < 0) {                                          
                printf("error: ftp_bye failed.\n");                             
                (void) check_n_close ( &ftpinfo, ABNORMAL );                    
        }                                                                       
                                                                                
        /*                                                                      
         * we're done with our job...so exit the program gracefully.            
         */                                                                     
        (void) check_n_close ( &ftpinfo, NORMAL );                              
                                                                                
}                                                                               
                                                                                
                                                                                
void                                                                            
usage(progname)                                                                 
        char *progname;                                                         
{                                                                               
        printf("usage: %s <remhost>;\n", progname);                              
        exit (1);                                                               
}                                                                               
                                                                                
void                                                                            
check_n_close ( ftpinfo, status )                                               
        FTPINFO *ftpinfo;                                                       
        int     status;                                                         
{                                                                               
        if (ftpinfo ->; sockfd >;= 0)                                             
                close (ftpinfo ->; sockfd);                                      
        if (status == ABNORMAL)                                                 
                printf("error: %s\n", ftpinfo ->; ftp_msg);                      
        else                                                                    
                printf("success: %s\n", ftpinfo ->; ftp_msg);                    
                                                                                
        printf("final reply from server: %d\n", ftpinfo ->; reply);              
        fflush ( stdout );                                                      
        exit (status);                                                          
}