/* ftp.c by Michael Temari 06/21/92 * * ftp          An ftp client program for use with TNET. * * Usage:       ftp [[host] [port]] * * Version:     0.10    06/21/92 (pre-release not yet completed) *              0.20    07/01/92 *              0.30    01/15/96 (Minix 1.7.1 initial release) *              0.40    08/27/96 * * Author:      Michael Temari, <temari@ix.netcom.com> */#include <stdio.h>#include <stdlib.h>#include <ctype.h>#include <string.h>#include "ftp.h"#include "local.h"#include "file.h"#include "other.h"#include "net.h"FILE *fpcommin;FILE *fpcommout;int linkopen;int loggedin;int type;int format;int mode;int structure;int passive;int atty;int cmdargc;char *cmdargv[NUMARGS];char reply[1024];_PROTOTYPE(static int makeargs, (char *buff));_PROTOTYPE(int DOhelp, (void));_PROTOTYPE(int main, (int argc, char *argv[]));static int makeargs(buff)char *buff;{char *p;int i;   for(i = 0; i < NUMARGS; i++)	cmdargv[i] = (char *)0;   p = buff + strlen(buff) - 1;   while(p != buff)	if(*p == '\r' || *p == '\n' || isspace(*p))		*p-- = '\0';	else		break;   p = buff;   cmdargc = 0;   while(cmdargc < NUMARGS) {	while(*p && isspace(*p))		p++;	if(*p == '\0')		break;	cmdargv[cmdargc++] = p;	while(*p && !isspace(*p)) {		if(cmdargc == 1)			*p = tolower(*p);		p++;	}	if(*p == '\0')		break;	*p = '\0';	p++;   }}int readline(prompt, buff, len)char *prompt;char *buff;int len;{   printf(prompt); fflush(stdout);   if(fgets(buff, len, stdin) == (char *)NULL) {	printf("\nEnd of file on input!\n");	exit(1);   }   *strchr(buff, '\n') = 0;   if(!atty) {	printf("%s\n", buff);	fflush(stdout);   }   return(0);}int DOgetreply(){char *p;char buff[6];int s;int firsttime;   do {	firsttime = 1;	do {		if(fgets(reply, sizeof(reply), fpcommin) == (char *)0)			return(-1);		p = reply + strlen(reply) - 1;		while(p != reply)			if(*p == '\r' || *p == '\n' || isspace(*p))				*p-- = '\0';			else				break;		printf("%s\n", reply); fflush(stdout);		if(firsttime) {			firsttime = 0;			strncpy(buff, reply, 4);			buff[3] = ' ';		}	   } while(strncmp(reply, buff, 3) || reply[3] == '-');	   s = atoi(buff);   } while(s < 200 && s != 125 & s != 150);   return(s);}int DOcmdcheck(){   if(!linkopen) {	printf("You must \"OPEN\" a connection first.\n");	return(1);   }   if(!loggedin) {	printf("You must login first.\n");	return(1);   }   return(0);}int DOcommand(ftpcommand, ftparg)char *ftpcommand;char *ftparg;{   if(*ftparg)	fprintf(fpcommout, "%s %s\r\n", ftpcommand, ftparg);   else   	fprintf(fpcommout, "%s\r\n", ftpcommand);   fflush(fpcommout);   return(DOgetreply());}int DOhelp(){char junk[10];   printf("Command:      Description\n");   printf("!             Escape to a shell\n");   printf("append        Append a file to remote host\n");   printf("ascii         Set file transfer mode to ascii\n");   printf("binary        Set file transfer mode to binary\n");   printf("bye           Close connection and exit\n");   printf("cd            Change directory on remote host\n");   printf("close         Close connection\n");   printf("del           Remove file on remote host\n");   printf("dir           Display long form remote host directory listing\n");   printf("exit          Close connection and exit\n");   printf("get           Retrieve a file from remote host\n");   printf("help          Display this text\n");   printf("lcd           Change directory on local host\n");   printf("ldir          Display long form local host directory listing\n");   printf("lls           Display local host directory listing\n");   printf("lmkdir        Create directory on local host\n");   printf("lpwd          Display current directory on local host\n");   printf("lrmdir        Remove directory on local host\n");   printf("ls            Display remote host directory listing\n");   printf("mget          Retrieve multiple files from remote host\n");   printf("mkdir         Create directory on remote host\n");   printf("mod           Get file modification time\n");   readline("Press ENTER to continue... ", junk, sizeof(junk));   printf("mput          Send multiple files to remote host\n");   printf("noop          Send the ftp NOOP command\n");   printf("open          Open connection to remote host\n");   printf("pass          Enter remote user password\n");   printf("passive       Toggle passive mode\n");   printf("put           Send a file to remote host\n");   printf("putu          Send a file to remote host(unique)\n");   printf("pwd           Display current directory on remote host\n");   printf("quit          Close connection and exit\n");   printf("quote         Send raw ftp command to remote host\n");   printf("reget         Restart a partial file retrieve from remote host\n");   printf("remotehelp    Display ftp commands implemented on remote host\n");   printf("reput         Restart a partial file send to remote host\n");   printf("rm            Remove file on remote host\n");   printf("rmdir         Remove directory on remote host\n");   printf("site          Send a site specific command\n");   printf("size          Get file size information\n");   printf("status        Get connection/file status information\n");   printf("system        Get remote system type information\n");   printf("user          Enter remote user information\n");   return(0);}struct commands {	char *name;	_PROTOTYPE(int (*func), (void));};static struct commands commands[] = {        "!",            DOlshell,	"append",	DOappe,	"ascii",        DOascii,	"binary",       DObinary,	"bye",          DOquit,	"cd",           DOcd,	"close",        DOclose,	"del",          DOdelete,	"dir",          DOlist,	"exit",         DOquit,	"get",          DOretr,	"help",         DOhelp,	"lcd",          DOlcd,        "ldir",         DOllist,        "lls",          DOlnlst,	"lmkdir",       DOlmkdir,	"lpwd",         DOlpwd,	"lrmdir",       DOlrmdir,	"ls",           DOnlst,	"mget",         DOMretr,	"mkdir",        DOmkdir,	"mod",		DOmdtm,	"mput",         DOMstor,	"noop",         DOnoop,	"open",         DOopen,	"pass",		DOpass,	"passive",      DOpassive,	"put",          DOstor,	"putu",		DOstou,	"pwd",          DOpwd,	"quit",         DOquit,	"quote",        DOquote,	"reget",	DOrretr,	"remotehelp",   DOremotehelp,	"reput",	DOrstor,	"rm",           DOdelete,	"rmdir",        DOrmdir,	"site",		DOsite,	"size",		DOsize,	"status",	DOstat,	"system",	DOsyst,	"user",         DOuser,	"",     (int (*)())0};int main(argc, argv)int argc;char *argv[];{int s;struct commands *cmd;static char buffer[128];   NETinit();   FTPinit();   s = 0;   if(argc > 1) {	sprintf(buffer, "open %s ", argv[1]);	makeargs(buffer);	s = DOopen();	if(atty && s > 0) {		sprintf(buffer, "user");		makeargs(buffer);		s = DOuser();	}   }   while(s >= 0) {	readline("ftp>", buffer, sizeof(buffer));	makeargs(buffer);	if(cmdargc == 0) continue;	for(cmd = commands; *cmd->name != '\0'; cmd++)		if(!strcmp(cmdargv[0], cmd->name))			break;	if(*cmd->name != '\0')		s = (*cmd->func)();	else {		s = 0;		printf("Command \"%s\" not recognized.\n", cmdargv[0]);	}   }   return(0);}