reactos/apps/utils/net/ftp/ftp.c

   1 #define L_SET SEEK_SET
   2 #define L_INCR SEEK_CUR
   3 #define caddr_t void *
   4 /*
   5  * Copyright (c) 1985, 1989 Regents of the University of California.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms are permitted
   9  * provided that the above copyright notice and this paragraph are
  10  * duplicated in all such forms and that any documentation,
  11  * advertising materials, and other materials related to such
  12  * distribution and use acknowledge that the software was developed
  13  * by the University of California, Berkeley.  The name of the
  14  * University may not be used to endorse or promote products derived
  15  * from this software without specific prior written permission.
  16  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  19  */
  20
  21 #ifndef lint
  22 static char sccsid[] = "@(#)ftp.c       5.28 (Berkeley) 4/20/89";
  23 #endif /* not lint */
  24 #include <io.h>
  25
  26 #include <sys/stat.h>
  27
  28 #if !defined(WIN32)
  29 #include <sys/param.h>
  30 #include <sys/socket.h>
  31 #include <sys/time.h>
  32 #include <sys/file.h>
  33 #include <sys/ioctl.h>
  34 #include <netinet/in.h>
  35 #include <arpa/ftp.h>
  36 #include <arpa/telnet.h>
  37 #include <pwd.h>
  38 #include <varargs.h>
  39 #include <netdb.h>
  40 #else
  41 #include <winsock.h>
  42 #endif
  43
  44 #include <stdio.h>
  45 #include <signal.h>
  46 #include <errno.h>
  47 #include <fcntl.h>
  48
  49 #include "ftp_var.h"
  50 #include "prototypes.h"
  51 #ifndef MAXHOSTNAMELEN
  52 #define MAXHOSTNAMELEN 64
  53 #endif
  54
  55 #ifdef NOVFPRINTF
  56 #define vfprintf(a,b,c) _doprnt(b,c,a)
  57 #endif
  58
  59 #ifdef sun
  60 /* FD_SET wasn't defined until 4.0. its a cheap test for uid_t  presence */
  61 #ifndef FD_SET
  62 #define NBBY    8               /* number of bits in a byte */
  63 /*
  64  * Select uses bit masks of file descriptors in longs.
  65  * These macros manipulate such bit fields (the filesystem macros use chars).
  66  * FD_SETSIZE may be defined by the user, but the default here
  67  * should be >= NOFILE (param.h).
  68  */
  69 #ifndef FD_SETSIZE
  70 #define FD_SETSIZE      256
  71 #endif
  72
  73 typedef long    fd_mask;
  74 #define NFDBITS (sizeof(fd_mask) * NBBY)        /* bits per mask */
  75 #ifndef howmany
  76 #define howmany(x, y)   (((x)+((y)-1))/(y))
  77 #endif
  78
  79 #define FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
  80 #define FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
  81 #define FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
  82 #define FD_ZERO(p)      bzero((char *)(p), sizeof(*(p)))
  83
  84 typedef int uid_t;
  85 typedef int gid_t;
  86 #endif
  87 #endif
  88
  89 struct  sockaddr_in hisctladdr;
  90 struct  sockaddr_in data_addr;
  91 int     data = -1;
  92 int     abrtflag = 0;
  93 int     ptflag = 0;
  94 int     allbinary;
  95 struct  sockaddr_in myctladdr;
  96 uid_t   getuid();
  97 sig_t   lostpeer();
  98 off_t   restart_point = 0;
  99
 100 SOCKET cin, cout;
 101 int     dataconn(char *mode);
 102
 103 int command(char *fmt, ...);
 104
 105 char *hostname;
 106
 107 typedef void (*Sig_t)(int);
 108
 109 // Signal Handlers
 110
 111 void psabort(int sig);
 112
 113 char *hookup(char *host, int port)
 114 {
 115         register struct hostent *hp = 0;
 116         int len;
 117         SOCKET s;
 118         static char hostnamebuf[80];
 119
 120         bzero((char *)&hisctladdr, sizeof (hisctladdr));
 121         hisctladdr.sin_addr.s_addr = inet_addr(host);
 122         if (hisctladdr.sin_addr.s_addr != -1) {
 123                 hisctladdr.sin_family = AF_INET;
 124                 (void) strncpy(hostnamebuf, host, sizeof(hostnamebuf));
 125         } else {
 126                 hp = gethostbyname(host);
 127                 if (hp == NULL) {
 128                         fprintf(stderr, "ftp: %s: ", host);
 129                         herror((char *)NULL);
 130                         code = -1;
 131                         return((char *) 0);
 132                 }
 133                 hisctladdr.sin_family = hp->h_addrtype;
 134                 bcopy(hp->h_addr_list[0],
 135                          (caddr_t)&hisctladdr.sin_addr, hp->h_length);
 136                 (void) strncpy(hostnamebuf, hp->h_name, sizeof(hostnamebuf));
 137         }
 138         hostname = hostnamebuf;
 139         s = socket(hisctladdr.sin_family, SOCK_STREAM, 0);
 140         if (s == INVALID_SOCKET) {
 141                 perror("ftp: socket");
 142                 code = -1;
 143                 return (0);
 144         }
 145         hisctladdr.sin_port = port;
 146         while (connect(s, (struct sockaddr *)&hisctladdr, sizeof (hisctladdr)) < 0) {
 147                 if (hp && hp->h_addr_list[1]) {
 148                         int oerrno = errno;
 149
 150                         fprintf(stderr, "ftp: connect to address %s: ",
 151                                 inet_ntoa(hisctladdr.sin_addr));
 152                         errno = oerrno;
 153                         perror((char *) 0);
 154                         hp->h_addr_list++;
 155                         bcopy(hp->h_addr_list[0],
 156                              (caddr_t)&hisctladdr.sin_addr, hp->h_length);
 157                         fprintf(stdout, "Trying %s...\n",
 158                                 inet_ntoa(hisctladdr.sin_addr));
 159                         (void) fflush(stdout);
 160                         (void) close(s);
 161                         s = socket(hisctladdr.sin_family, SOCK_STREAM, 0);
 162                         if (s < 0) {
 163                                 perror("ftp: socket");
 164                                 code = -1;
 165                                 return (0);
 166                         }
 167                         continue;
 168                 }
 169                 perror("ftp: connect");
 170                 code = -1;
 171                 goto bad;
 172         }
 173         len = sizeof (myctladdr);
 174         if (getsockname(s, (struct sockaddr *)&myctladdr, &len) < 0) {
 175                 perror("ftp: getsockname");
 176                 code = -1;
 177                 goto bad;
 178         }
 179         cin = cout = s;
 180         if (verbose) {
 181                 printf("Connected to %s.\n", hostname);
 182                 (void) fflush(stdout);
 183         }
 184         if (getreply(0) > 2) {  /* read startup message from server */
 185            closesocket(cin);
 186            code = -1;
 187            goto bad;
 188         }
 189 #ifdef SO_OOBINLINE
 190         {
 191         int on = 1;
 192
 193         if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (const char *) &on, sizeof(on))
 194                 < 0 && debug) {
 195                         perror("ftp: setsockopt");
 196                 }
 197         }
 198 #endif //SO_OOBINLINE
 199
 200         return (hostname);
 201 bad:
 202         (void) close(s);
 203         return ((char *)0);
 204 }
 205
 206 int login(char *host)
 207 {
 208         char tmp[80];
 209         char *user, *pass, *acct;
 210         int n, aflag = 0;
 211
 212         user = pass = acct = 0;
 213         if (ruserpass(host, &user, &pass, &acct) < 0) {
 214                 code = -1;
 215                 return(0);
 216         }
 217         while (user == NULL) {
 218            char *myname = "none"; // This needs to become the usename env
 219
 220            if (myname)
 221               printf("Name (%s:%s): ", host, myname);
 222            else
 223               printf("Name (%s): ", host);
 224            (void) fflush(stdout);
 225            (void) fgets(tmp, sizeof(tmp) - 1, stdin);
 226            tmp[strlen(tmp) - 1] = '\0';
 227            if (*tmp == '\0')
 228               user = myname;
 229            else
 230               user = tmp;
 231         }
 232         n = command("USER %s", user);
 233         if (n == CONTINUE) {
 234                 if (pass == NULL)
 235                         pass = getpass("Password:");
 236                 n = command("PASS %s", pass);
 237                 fflush(stdin);
 238         }
 239         if (n == CONTINUE) {
 240                 aflag++;
 241                 acct = getpass("Account:");
 242                 n = command("ACCT %s", acct);
 243         }
 244         if (n != COMPLETE) {
 245                 fprintf(stderr, "Login failed.\n");
 246                 return (0);
 247         }
 248         if (!aflag && acct != NULL)
 249                 (void) command("ACCT %s", acct);
 250         if (proxy)
 251                 return(1);
 252         for (n = 0; n < macnum; ++n) {
 253                 if (!strcmp("init", macros[n].mac_name)) {
 254                         (void) strcpy(line, "$init");
 255                         makeargv();
 256                         domacro(margc, margv);
 257                         break;
 258                 }
 259         }
 260         return (1);
 261 }
 262
 263 void
 264 cmdabort(int sig)
 265 {
 266         extern jmp_buf ptabort;
 267
 268         printf("\n");
 269         (void) fflush(stdout);
 270         abrtflag++;
 271         if (ptflag)
 272                 longjmp(ptabort,1);
 273 }
 274
 275 /*VARARGS1*/
 276 int command(char *fmt, ...)
 277 {
 278         va_list ap;
 279         int r;
 280         void (*oldintr)(int), cmdabort(int);
 281
 282         abrtflag = 0;
 283         if (debug) {
 284                 printf("---> ");
 285                 va_start(ap, fmt);
 286                 vfprintf(stdout, fmt, ap);
 287                 va_end(ap);
 288                 printf("\n");
 289                 (void) fflush(stdout);
 290         }
 291         if (cout == (int) NULL) {
 292                 perror ("No control connection for command");
 293                 code = -1;
 294                 return (0);
 295         }
 296         oldintr = signal(SIGINT,cmdabort);
 297         {
 298            char buffer[1024];
 299
 300            va_start(ap, fmt);
 301            vsprintf(buffer, fmt, ap);
 302            va_end(ap);
 303 //DLJ: to work through  firewalls - send the command as a single message
 304                    strcat(buffer,"\r\n");
 305            fprintfSocket(cout, buffer);
 306         }
 307 //DLJ: the following two lines are replaced by the strcat above - seems to
 308 // make it work through firewalls.
 309 //      fprintfSocket(cout, "\r\n");
 310 //      (void) fflush(cout);
 311         cpend = 1;
 312         r = getreply(!strcmp(fmt, "QUIT"));
 313         if (abrtflag && oldintr != SIG_IGN)
 314                 (*oldintr)(SIGINT);
 315 //      (void) signal(SIGINT, oldintr);
 316         return(r);
 317 }
 318
 319 char reply_string[BUFSIZ];              /* last line of previous reply */
 320
 321 #include <ctype.h>
 322
 323 getreply(expecteof)
 324         int expecteof;
 325 {
 326         register int c, n;
 327         register int dig;
 328         register char *cp;
 329         int originalcode = 0, continuation = 0;
 330         void (*oldintr)(int), cmdabort(int);
 331         int pflag = 0;
 332         char *pt = pasv;
 333
 334         oldintr = signal(SIGINT,cmdabort);
 335         for (;;) {
 336                 dig = n = code = 0;
 337                 cp = reply_string;
 338                 while ((c = fgetcSocket(cin)) != '\n') {
 339                         if (c == IAC) {     /* handle telnet commands */
 340                                 switch (c = fgetcSocket(cin)) {
 341                                 case WILL:
 342                                 case WONT:
 343                                         c = fgetcSocket(cin);
 344                                         fprintfSocket(cout, "%c%c%c",IAC,DONT,c);
 345                                         break;
 346                                 case DO:
 347                                 case DONT:
 348                                         c = fgetcSocket(cin);
 349                                         fprintfSocket(cout, "%c%c%c",IAC,WONT,c);
 350                                         break;
 351                                 default:
 352                                         break;
 353                                 }
 354                                 continue;
 355                         }
 356                         dig++;
 357                         if (c == EOF) {
 358                                 if (expecteof) {
 359 //                                      (void) signal(SIGINT,oldintr);
 360                                         code = 221;
 361                                         return (0);
 362                                 }
 363                                 lostpeer();
 364                                 if (verbose) {
 365                                         printf("421 Service not available, remote server has closed connection\n");
 366                                         (void) fflush(stdout);
 367                                 }
 368                                 code = 421;
 369                                 return(4);
 370                         }
 371                         if (c != '\r' && (verbose > 0 ||
 372                             (verbose > -1 && n == '5' && dig > 4))) {
 373                                 if (proxflag &&
 374                                    (dig == 1 || dig == 5 && verbose == 0))
 375                                         printf("%s:",hostname);
 376                                 (void) putchar(c);
 377                                 (void) fflush(stdout);
 378                         }
 379                         if (dig < 4 && isdigit(c))
 380                                 code = code * 10 + (c - '0');
 381                         if (!pflag && code == 227)
 382                                 pflag = 1;
 383                         if (dig > 4 && pflag == 1 && isdigit(c))
 384                                 pflag = 2;
 385                         if (pflag == 2) {
 386                                 if (c != '\r' && c != ')')
 387                                         *pt++ = c;
 388                                 else {
 389                                         *pt = '\0';
 390                                         pflag = 3;
 391                                 }
 392                         }
 393                         if (dig == 4 && c == '-') {
 394                                 if (continuation)
 395                                         code = 0;
 396                                 continuation++;
 397                         }
 398                         if (n == 0)
 399                                 n = c;
 400                         if (cp < &reply_string[sizeof(reply_string) - 1])
 401                                 *cp++ = c;
 402                 }
 403                 if (verbose > 0 || verbose > -1 && n == '5') {
 404                         (void) putchar(c);
 405                         (void) fflush (stdout);
 406                 }
 407                 if (continuation && code != originalcode) {
 408                         if (originalcode == 0)
 409                                 originalcode = code;
 410                         continue;
 411                 }
 412                 *cp = '\0';
 413                 if (n != '1')
 414                         cpend = 0;
 415                 (void) signal(SIGINT,oldintr);
 416                 if (code == 421 || originalcode == 421)
 417                         lostpeer();
 418                 if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN)
 419                         (*oldintr)(SIGINT);
 420                 return (n - '0');
 421         }
 422 }
 423
 424 empty(mask, sec)
 425         struct fd_set *mask;
 426         int sec;
 427 {
 428         struct timeval t;
 429
 430         t.tv_sec = (long) sec;
 431         t.tv_usec = 0;
 432         return(select(32, mask, (struct fd_set *) 0, (struct fd_set *) 0, &t));
 433 }
 434
 435 jmp_buf sendabort;
 436
 437 void abortsend()
 438 {
 439
 440         mflag = 0;
 441         abrtflag = 0;
 442         printf("\nsend aborted\n");
 443         (void) fflush(stdout);
 444         longjmp(sendabort, 1);
 445 }
 446
 447 #define HASHBYTES 1024
 448
 449 void sendrequest(char *cmd, char *local, char *remote, int printnames)
 450 {
 451         FILE *fin;
 452         int dout = 0;
 453         int (*closefunc)(), _pclose(), fclose();
 454         sig_t (*oldintr)(), (*oldintp)();
 455         void abortsend();
 456         char buf[BUFSIZ], *bufp;
 457         long bytes = 0, hashbytes = HASHBYTES;
 458         register int c, d;
 459         struct stat st;
 460         struct timeval start, stop;
 461         char *mode;
 462
 463         if (verbose && printnames) {
 464                 if (local && *local != '-')
 465                         printf("local: %s ", local);
 466                 if (remote)
 467                         printf("remote: %s\n", remote);
 468                 (void) fflush(stdout);
 469         }
 470         if (proxy) {
 471                 proxtrans(cmd, local, remote);
 472                 return;
 473         }
 474         closefunc = NULL;
 475         oldintr = NULL;
 476         oldintp = NULL;
 477         mode = "w";
 478         if (setjmp(sendabort)) {
 479                 while (cpend) {
 480                         (void) getreply(0);
 481                 }
 482                 if (data >= 0) {
 483                         (void) close(data);
 484                         data = -1;
 485                 }
 486                 if (oldintr)
 487 null();//                       (void) signal(SIGINT,oldintr);
 488                 if (oldintp)
 489 null();//                       (void) signal(SIGPIPE,oldintp);
 490                 code = -1;
 491                 return;
 492         }
 493 null();//       oldintr = signal(SIGINT, abortsend);
 494         if (strcmp(local, "-") == 0)
 495                 fin = stdin;
 496         else if (*local == '|') {
 497 null();//               oldintp = signal(SIGPIPE,SIG_IGN);
 498                 fin = _popen(local + 1, "r");
 499                 if (fin == NULL) {
 500                         perror(local + 1);
 501 null();//                       (void) signal(SIGINT, oldintr);
 502 null();//                       (void) signal(SIGPIPE, oldintp);
 503                         code = -1;
 504                         return;
 505                 }
 506                 closefunc = _pclose;
 507         } else {
 508                 fin = fopen(local, "r");
 509                 if (fin == NULL) {
 510                         perror(local);
 511 null();//                       (void) signal(SIGINT, oldintr);
 512                         code = -1;
 513                         return;
 514                 }
 515                 closefunc = fclose;
 516                 if (fstat(fileno(fin), &st) < 0 ||
 517                     (st.st_mode&S_IFMT) != S_IFREG) {
 518                         fprintf(stdout, "%s: not a plain file.\n", local);
 519                         (void) fflush(stdout);
 520 null();//                       (void) signal(SIGINT, oldintr);
 521                         fclose(fin);
 522                         code = -1;
 523                         return;
 524                 }
 525         }
 526         if (initconn()) {
 527 null();//               (void) signal(SIGINT, oldintr);
 528                 if (oldintp)
 529 null();//                       (void) signal(SIGPIPE, oldintp);
 530                 code = -1;
 531                 if (closefunc != NULL)
 532                         (*closefunc)(fin);
 533                 return;
 534         }
 535         if (setjmp(sendabort))
 536                 goto abort;
 537
 538         if (restart_point &&
 539             (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
 540                 if (fseek(fin, (long) restart_point, 0) < 0) {
 541                         perror(local);
 542                         restart_point = 0;
 543                         if (closefunc != NULL)
 544                                 (*closefunc)(fin);
 545                         return;
 546                 }
 547                 if (command("REST %ld", (long) restart_point)
 548                         != CONTINUE) {
 549                         restart_point = 0;
 550                         if (closefunc != NULL)
 551                                 (*closefunc)(fin);
 552                         return;
 553                 }
 554                 restart_point = 0;
 555                 mode = "r+w";
 556         }
 557         if (remote) {
 558                 if (command("%s %s", cmd, remote) != PRELIM) {
 559 null();//                       (void) signal(SIGINT, oldintr);
 560                         if (oldintp)
 561 null();//                               (void) signal(SIGPIPE, oldintp);
 562                         if (closefunc != NULL)
 563                                 (*closefunc)(fin);
 564                         return;
 565                 }
 566         } else
 567                 if (command("%s", cmd) != PRELIM) {
 568 null();//                       (void) signal(SIGINT, oldintr);
 569                         if (oldintp)
 570 null();//                               (void) signal(SIGPIPE, oldintp);
 571                         if (closefunc != NULL)
 572                                 (*closefunc)(fin);
 573                         return;
 574                 }
 575         dout = dataconn(mode);
 576         if (dout == (int)NULL)
 577                 goto abort;
 578         (void) gettimeofday(&start, (struct timezone *)0);
 579 null();//       oldintp = signal(SIGPIPE, SIG_IGN);
 580         switch (type) {
 581
 582         case TYPE_I:
 583         case TYPE_L:
 584                 errno = d = 0;
 585                 while ((c = read(fileno(fin), buf, sizeof (buf))) > 0) {
 586                         bytes += c;
 587                         for (bufp = buf; c > 0; c -= d, bufp += d)
 588                                 if ((d = send(dout, bufp, c, 0)) <= 0)
 589                                         break;
 590                         if (hash) {
 591                                 while (bytes >= hashbytes) {
 592                                         (void) putchar('#');
 593                                         hashbytes += HASHBYTES;
 594                                 }
 595                                 (void) fflush(stdout);
 596                         }
 597                 }
 598                 if (hash && bytes > 0) {
 599                         if (bytes < HASHBYTES)
 600                                 (void) putchar('#');
 601                         (void) putchar('\n');
 602                         (void) fflush(stdout);
 603                 }
 604                 if (c < 0)
 605                         perror(local);
 606                 if (d <= 0) {
 607                         if (d == 0)
 608                                 fprintf(stderr, "netout: write returned 0?\n");
 609                         else if (errno != EPIPE)
 610                                 perror("netout");
 611                         bytes = -1;
 612                 }
 613                 break;
 614
 615         case TYPE_A:
 616                 {
 617         char buf[1024];
 618                 static int bufsize = 1024;
 619                 int ipos=0;
 620
 621                 while ((c = getc(fin)) != EOF) {
 622                    if (c == '\n') {
 623                       while (hash && (bytes >= hashbytes)) {
 624                          (void) putchar('#');
 625                          (void) fflush(stdout);
 626                          hashbytes += HASHBYTES;
 627                       }
 628 // Szurgot: The following code is unncessary on Win32.
 629 //                      (void) fputcSocket(dout, '\r');
 630 //                         bytes++;
 631                    }
 632
 633                                    if (ipos >= bufsize) {
 634                                                 fputSocket(dout,buf,ipos);
 635                                                 if(!hash) (void) putchar('.');
 636                                                 ipos=0;
 637                                    }
 638                                    buf[ipos]=c; ++ipos;
 639                                    bytes++;
 640                 }
 641                 if (ipos) {
 642                         fputSocket(dout,buf,ipos);
 643                         ipos=0;
 644                 }
 645                 if (hash) {
 646                    if (bytes < hashbytes)
 647                       (void) putchar('#');
 648                    (void) putchar('\n');
 649                    (void) fflush(stdout);
 650                 }
 651                 else {
 652                         (void) putchar('.');
 653                         (void) putchar('\n');
 654                         (void) fflush(stdout);
 655                 }
 656                 if (ferror(fin))
 657                    perror(local);
 658 //              if (ferror(dout)) {
 659 //                      if (errno != EPIPE)
 660 //                              perror("netout");
 661 //                      bytes = -1;
 662 //              }
 663                 break;
 664                 }
 665         }
 666         (void) gettimeofday(&stop, (struct timezone *)0);
 667         if (closefunc != NULL)
 668                 (*closefunc)(fin);
 669         if(closesocket(dout)) {
 670                 int iret=WSAGetLastError ();
 671                 fprintf(stdout,"Error closing socket(%d)\n",iret);
 672                 (void) fflush(stdout);
 673         }
 674         (void) getreply(0);
 675 null();//       (void) signal(SIGINT, oldintr);
 676         if (oldintp)
 677 null();//               (void) signal(SIGPIPE, oldintp);
 678         if (bytes > 0)
 679                 ptransfer("sent", bytes, &start, &stop);
 680         return;
 681 abort:
 682         (void) gettimeofday(&stop, (struct timezone *)0);
 683 null();//       (void) signal(SIGINT, oldintr);
 684         if (oldintp)
 685 null();//               (void) signal(SIGPIPE, oldintp);
 686         if (!cpend) {
 687                 code = -1;
 688                 return;
 689         }
 690         if (data >= 0) {
 691                 (void) close(data);
 692                 data = -1;
 693         }
 694         if (dout)
 695                 if(closesocket(dout)) {
 696                         int iret=WSAGetLastError ();
 697                         fprintf(stdout,"Error closing socket(%d)\n",iret);
 698                         (void) fflush(stdout);
 699                 }
 700
 701         (void) getreply(0);
 702         code = -1;
 703         if (closefunc != NULL && fin != NULL)
 704                 (*closefunc)(fin);
 705         if (bytes > 0)
 706                 ptransfer("sent", bytes, &start, &stop);
 707 }
 708
 709 jmp_buf recvabort;
 710
 711
 712 void abortrecv()
 713 {
 714
 715         mflag = 0;
 716         abrtflag = 0;
 717         printf("\n");
 718         (void) fflush(stdout);
 719         longjmp(recvabort, 1);
 720 }
 721
 722 void recvrequest(char *cmd, char *local, char *remote, char *mode,
 723                 int printnames)
 724 {
 725         FILE *fout;
 726         int din = 0;
 727         int (*closefunc)(), _pclose(), fclose();
 728         void (*oldintr)(int), (*oldintp)(int);
 729         void abortrecv();
 730         int oldverbose, oldtype = 0, is_retr, tcrflag, nfnd, bare_lfs = 0;
 731         char *gunique(), msg;
 732 //      static char *buf; // Szurgot: Shouldn't this go SOMEWHERE?
 733         char buf[1024];
 734         static int bufsize = 1024;
 735         long bytes = 0, hashbytes = HASHBYTES;
 736 //      struct
 737                 fd_set mask;
 738         register int c, d;
 739         struct timeval start, stop;
 740 //      struct stat st;
 741         extern void *malloc();
 742
 743         is_retr = strcmp(cmd, "RETR") == 0;
 744         if (is_retr && verbose && printnames) {
 745                 if (local && *local != '-')
 746                         printf("local: %s ", local);
 747                 if (remote)
 748                         printf("remote: %s\n", remote);
 749                 (void) fflush(stdout);
 750         }
 751         if (proxy && is_retr) {
 752                 proxtrans(cmd, local, remote);
 753                 return;
 754         }
 755         closefunc = NULL;
 756         oldintr = NULL;
 757         oldintp = NULL;
 758         tcrflag = !crflag && is_retr;
 759         if (setjmp(recvabort)) {
 760                 while (cpend) {
 761                         (void) getreply(0);
 762                 }
 763                 if (data >= 0) {
 764                         (void) close(data);
 765                         data = -1;
 766                 }
 767                 if (oldintr)
 768 null();//                       (void) signal(SIGINT, oldintr);
 769                 code = -1;
 770                 return;
 771         }
 772 null();//       oldintr = signal(SIGINT, abortrecv);
 773         if (strcmp(local, "-") && *local != '|') {
 774 #ifndef __WIN32__
 775 // This whole thing is a problem... access Won't work on non-existent files
 776            if (access(local, 2) < 0) {
 777               char *dir = rindex(local, '/');
 778
 779               if (errno != ENOENT && errno != EACCES) {
 780                  perror(local);
 781                  (void) signal(SIGINT, oldintr);
 782                  code = -1;
 783                  return;
 784               }
 785               if (dir != NULL)
 786                  *dir = 0;
 787               d = access(dir ? local : ".", 2);
 788               if (dir != NULL)
 789                  *dir = '/';
 790               if (d < 0) {
 791                  perror(local);
 792                  (void) signal(SIGINT, oldintr);
 793                  code = -1;
 794                  return;
 795               }
 796               if (!runique && errno == EACCES &&
 797                   chmod(local, 0600) < 0) {
 798                  perror(local);
 799                  (void) signal(SIGINT, oldintr);
 800                  code = -1;
 801                  return;
 802               }
 803               if (runique && errno == EACCES &&
 804                   (local = gunique(local)) == NULL) {
 805                  (void) signal(SIGINT, oldintr);
 806                  code = -1;
 807                  return;
 808               }
 809            }
 810            else if (runique && (local = gunique(local)) == NULL) {
 811               (void) signal(SIGINT, oldintr);
 812               code = -1;
 813               return;
 814            }
 815 #endif
 816         }
 817         if (initconn()) {
 818 null();//               (void) signal(SIGINT, oldintr);
 819                 code = -1;
 820                 return;
 821         }
 822         if (setjmp(recvabort))
 823                 goto abort;
 824         if (!is_retr) {
 825                 if (type != TYPE_A && (allbinary == 0 || type != TYPE_I)) {
 826                         oldtype = type;
 827                         oldverbose = verbose;
 828                         if (!debug)
 829                                 verbose = 0;
 830                         setascii();
 831                         verbose = oldverbose;
 832                 }
 833         } else if (restart_point) {
 834                 if (command("REST %ld", (long) restart_point) != CONTINUE)
 835                         return;
 836         }
 837         if (remote) {
 838                 if (command("%s %s", cmd, remote) != PRELIM) {
 839 null();//                       (void) signal(SIGINT, oldintr);
 840                         if (oldtype) {
 841                                 if (!debug)
 842                                         verbose = 0;
 843                                 switch (oldtype) {
 844                                         case TYPE_I:
 845                                                 setbinary();
 846                                                 break;
 847                                         case TYPE_E:
 848                                                 setebcdic();
 849                                                 break;
 850                                         case TYPE_L:
 851                                                 settenex();
 852                                                 break;
 853                                 }
 854                                 verbose = oldverbose;
 855                         }
 856                         return;
 857                 }
 858         } else {
 859                 if (command("%s", cmd) != PRELIM) {
 860 null();//                       (void) signal(SIGINT, oldintr);
 861                         if (oldtype) {
 862                                 if (!debug)
 863                                         verbose = 0;
 864                                 switch (oldtype) {
 865                                         case TYPE_I:
 866                                                 setbinary();
 867                                                 break;
 868                                         case TYPE_E:
 869                                                 setebcdic();
 870                                                 break;
 871                                         case TYPE_L:
 872                                                 settenex();
 873                                                 break;
 874                                 }
 875                                 verbose = oldverbose;
 876                         }
 877                         return;
 878                 }
 879         }
 880         din = dataconn("r");
 881         if (din == (int)NULL)
 882                 goto abort;
 883         if (strcmp(local, "-") == 0)
 884                 fout = stdout;
 885         else if (*local == '|') {
 886 null();//               oldintp = signal(SIGPIPE, SIG_IGN);
 887                 fout = _popen(local + 1, "w");
 888                 if (fout == NULL) {
 889                         perror(local+1);
 890                         goto abort;
 891                 }
 892                 closefunc = _pclose;
 893         } else {
 894                 fout = fopen(local, mode);
 895                 if (fout == NULL) {
 896                         perror(local);
 897                         goto abort;
 898                 }
 899                 closefunc = fclose;
 900         }
 901         (void) gettimeofday(&start, (struct timezone *)0);
 902         switch (type) {
 903
 904         case TYPE_I:
 905         case TYPE_L:
 906                 if (restart_point &&
 907                     lseek(fileno(fout), (long) restart_point, L_SET) < 0) {
 908                         perror(local);
 909                         if (closefunc != NULL)
 910                                 (*closefunc)(fout);
 911                         return;
 912                 }
 913                 errno = d = 0;
 914 //              while ((c = recv(din, buf, bufsize, 1)) > 0) {
 915 //                      if ((d = write(fileno(fout), buf, c)) != c)
 916 //                      if ((d = write(fileno(fout), buf, c)) != c)
 917 //                              break;
 918                 while ((c = recv(din, buf, bufsize, 0)) > 0) {
 919                    write(fileno(fout), buf, c);
 920                    bytes += c;
 921                    if (hash) {
 922                       while (bytes >= hashbytes) {
 923                          (void) putchar('#');
 924                          hashbytes += HASHBYTES;
 925                       }
 926                       (void) fflush(stdout);
 927                    }
 928                 }
 929                 if (hash && bytes > 0) {
 930                         if (bytes < HASHBYTES)
 931                                 (void) putchar('#');
 932                         (void) putchar('\n');
 933                         (void) fflush(stdout);
 934                 }
 935 //              if (c < 0) {
 936 //                      if (errno != EPIPE)
 937 //                              perror("netin");
 938 //                      bytes = -1;
 939 //              }
 940 //              if (d < c) {
 941 //                      if (d < 0)
 942 //                              perror(local);
 943 //                      else
 944 //                              fprintf(stderr, "%s: short write\n", local);
 945 //              }
 946                 break;
 947
 948         case TYPE_A:
 949                 if (restart_point) {
 950                         register int i, n, c;
 951
 952                         if (fseek(fout, 0L, L_SET) < 0)
 953                                 goto done;
 954                         n = restart_point;
 955                         i = 0;
 956                         while (i++ < n) {
 957                                 if ((c=getc(fout)) == EOF)
 958                                         goto done;
 959                                 if (c == '\n')
 960                                         i++;
 961                         }
 962                         if (fseek(fout, 0L, L_INCR) < 0) {
 963 done:
 964                                 perror(local);
 965                                 if (closefunc != NULL)
 966                                         (*closefunc)(fout);
 967                                 return;
 968                         }
 969                 }
 970                 while ((c = fgetcSocket(din)) != EOF) {
 971                         if (c == '\n')
 972                                 bare_lfs++;
 973                         while (c == '\r') {
 974                            while (hash && (bytes >= hashbytes)) {
 975                               (void) putchar('#');
 976                               (void) fflush(stdout);
 977                               hashbytes += HASHBYTES;
 978                            }
 979                            bytes++;
 980                            if ((c = fgetcSocket(din)) != '\n' || tcrflag) {
 981                               if (ferror(fout))
 982                                  goto break2;
 983                               (void) putc('\r', fout);
 984                               if (c == '\0') {
 985                                  bytes++;
 986                                  goto contin2;
 987                               }
 988                               if (c == EOF)
 989                                  goto contin2;
 990                            }
 991                         }
 992                         (void) putc(c, fout);
 993                         bytes++;
 994         contin2:        ;
 995                 }
 996 break2:
 997                 if (bare_lfs) {
 998                         printf("WARNING! %d bare linefeeds received in ASCII mode\n");
 999                         printf("File may not have transferred correctly.\n");
1000                         (void) fflush(stdout);
1001                 }
1002                 if (hash) {
1003                         if (bytes < hashbytes)
1004                                 (void) putchar('#');
1005                         (void) putchar('\n');
1006                         (void) fflush(stdout);
1007                 }
1008 //              if (ferror(din)) {
1009 //                      if (errno != EPIPE)
1010 //                              perror("netin");
1011 //                      bytes = -1;
1012 //              }
1013                 if (ferror(fout))
1014                         perror(local);
1015                 break;
1016         }
1017         if (closefunc != NULL)
1018                 (*closefunc)(fout);
1019 null();//       (void) signal(SIGINT, oldintr);
1020         if (oldintp)
1021 null();//               (void) signal(SIGPIPE, oldintp);
1022         (void) gettimeofday(&stop, (struct timezone *)0);
1023         if(closesocket(din)) {
1024                 int iret=WSAGetLastError ();
1025                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1026                 (void) fflush(stdout);
1027         }
1028
1029         (void) getreply(0);
1030         if (bytes > 0 && is_retr)
1031                 ptransfer("received", bytes, &start, &stop);
1032         if (oldtype) {
1033                 if (!debug)
1034                         verbose = 0;
1035                 switch (oldtype) {
1036                         case TYPE_I:
1037                                 setbinary();
1038                                 break;
1039                         case TYPE_E:
1040                                 setebcdic();
1041                                 break;
1042                         case TYPE_L:
1043                                 settenex();
1044                                 break;
1045                 }
1046                 verbose = oldverbose;
1047         }
1048         return;
1049 abort:
1050
1051 /* abort using RFC959 recommended IP,SYNC sequence  */
1052
1053         (void) gettimeofday(&stop, (struct timezone *)0);
1054         if (oldintp)
1055 null();//               (void) signal(SIGPIPE, oldintr);
1056 null();//       (void) signal(SIGINT,SIG_IGN);
1057         if (oldtype) {
1058                 if (!debug)
1059                         verbose = 0;
1060                 switch (oldtype) {
1061                         case TYPE_I:
1062                                 setbinary();
1063                                 break;
1064                         case TYPE_E:
1065                                 setebcdic();
1066                                 break;
1067                         case TYPE_L:
1068                                 settenex();
1069                                 break;
1070                 }
1071                 verbose = oldverbose;
1072         }
1073         if (!cpend) {
1074                 code = -1;
1075 null();//               (void) signal(SIGINT,oldintr);
1076                 return;
1077         }
1078
1079         fprintfSocket(cout,"%c%c",IAC,IP);
1080         msg = (char)IAC;
1081 /* send IAC in urgent mode instead of DM because UNIX places oob mark */
1082 /* after urgent byte rather than before as now is protocol            */
1083         if (send(cout,&msg,1,MSG_OOB) != 1) {
1084                 perror("abort");
1085         }
1086         fprintfSocket(cout,"%cABOR\r\n",DM);
1087         FD_ZERO(&mask);
1088         FD_SET(cin, &mask); // Need to correct this
1089         if (din) {
1090                 FD_SET(din, &mask); // Need to correct this
1091         }
1092         if ((nfnd = empty(&mask,10)) <= 0) {
1093                 if (nfnd < 0) {
1094                         perror("abort");
1095                 }
1096                 code = -1;
1097                 lostpeer();
1098         }
1099         if (din && FD_ISSET(din, &mask)) {
1100                 while ((c = recv(din, buf, bufsize, 0)) > 0)
1101                         ;
1102         }
1103         if ((c = getreply(0)) == ERROR && code == 552) { /* needed for nic style abort */
1104                 if (data >= 0) {
1105                         (void) close(data);
1106                         data = -1;
1107                 }
1108                 (void) getreply(0);
1109         }
1110         (void) getreply(0);
1111         code = -1;
1112         if (data >= 0) {
1113                 (void) close(data);
1114                 data = -1;
1115         }
1116         if (closefunc != NULL && fout != NULL)
1117                 (*closefunc)(fout);
1118         if (din)
1119                 if(closesocket(din)) {
1120                         int iret=WSAGetLastError ();
1121                         fprintf(stdout,"Error closing socket(%d)\n",iret);
1122                         (void) fflush(stdout);
1123                 }
1124
1125         if (bytes > 0)
1126                 ptransfer("received", bytes, &start, &stop);
1127 null();//       (void) signal(SIGINT,oldintr);
1128 }
1129
1130 /*
1131  * Need to start a listen on the data channel
1132  * before we send the command, otherwise the
1133  * server's connect may fail.
1134  */
1135 int sendport = -1;
1136
1137 initconn()
1138 {
1139         register char *p, *a;
1140         int result, len, tmpno = 0;
1141         int on = 1;
1142         int a0, a1, a2, a3, p0, p1;
1143
1144
1145         if (passivemode) {
1146       data = socket(AF_INET, SOCK_STREAM, 0);
1147       if (data < 0) {
1148         perror("ftp: socket");
1149         return(1);
1150       }
1151       if ((options & SO_DEBUG) &&
1152           setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1153                      sizeof (on)) < 0)
1154         perror("ftp: setsockopt (ignored)");
1155       if (command("PASV") != COMPLETE) {
1156         printf("Passive mode refused.\n");
1157         goto bad;
1158       }
1159
1160       /*
1161        * What we've got at this point is a string of comma
1162        * separated one-byte unsigned integer values.
1163        * The first four are the an IP address. The fifth is
1164        * the MSB of the port number, the sixth is the LSB.
1165        * From that we'll prepare a sockaddr_in.
1166        */
1167
1168       if (sscanf(pasv,"%d,%d,%d,%d,%d,%d",
1169                  &a0, &a1, &a2, &a3, &p0, &p1) != 6) {
1170         printf("Passive mode address scan failure. Shouldn't happen!\n");
1171         goto bad;
1172       }
1173
1174       bzero(&data_addr, sizeof(data_addr));
1175       data_addr.sin_family = AF_INET;
1176       a = (char *)&data_addr.sin_addr.s_addr;
1177       a[0] = a0 & 0xff;
1178       a[1] = a1 & 0xff;
1179       a[2] = a2 & 0xff;
1180       a[3] = a3 & 0xff;
1181       p = (char *)&data_addr.sin_port;
1182       p[0] = p0 & 0xff;
1183       p[1] = p1 & 0xff;
1184
1185       if (connect(data, (struct sockaddr *)&data_addr,
1186                   sizeof(data_addr)) < 0) {
1187         perror("ftp: connect");
1188         goto bad;
1189       }
1190       return(0);
1191         }
1192
1193
1194 noport:
1195         data_addr = myctladdr;
1196         if (sendport)
1197                 data_addr.sin_port = 0; /* let system pick one */
1198         if (data != -1)
1199                 (void) close (data);
1200         data = socket(AF_INET, SOCK_STREAM, 0);
1201         if (data < 0) {
1202                 perror("ftp: socket");
1203                 if (tmpno)
1204                         sendport = 1;
1205                 return (1);
1206         }
1207         if (!sendport)
1208                 if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) {
1209                         perror("ftp: setsockopt (reuse address)");
1210                         goto bad;
1211                 }
1212         if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) {
1213                 perror("ftp: bind");
1214                 goto bad;
1215         }
1216         if (options & SO_DEBUG &&
1217             setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0)
1218                 perror("ftp: setsockopt (ignored)");
1219         len = sizeof (data_addr);
1220         if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
1221                 perror("ftp: getsockname");
1222                 goto bad;
1223         }
1224         if (listen(data, 1) < 0)
1225                 perror("ftp: listen");
1226         if (sendport) {
1227                 a = (char *)&data_addr.sin_addr;
1228                 p = (char *)&data_addr.sin_port;
1229 #define UC(b)   (((int)b)&0xff)
1230                 result =
1231                     command("PORT %d,%d,%d,%d,%d,%d",
1232                       UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1233                       UC(p[0]), UC(p[1]));
1234                 if (result == ERROR && sendport == -1) {
1235                         sendport = 0;
1236                         tmpno = 1;
1237                         goto noport;
1238                 }
1239                 return (result != COMPLETE);
1240         }
1241         if (tmpno)
1242                 sendport = 1;
1243         return (0);
1244 bad:
1245         (void) fflush(stdout);
1246         (void) close(data), data = -1;
1247         if (tmpno)
1248                 sendport = 1;
1249         return (1);
1250 }
1251
1252 int dataconn(char *mode)
1253 {
1254    struct sockaddr_in from;
1255    int s, fromlen = sizeof (from);
1256
1257    if (passivemode)
1258      return (data);
1259
1260    s = accept(data, (struct sockaddr *) &from, &fromlen);
1261    if (s < 0) {
1262       perror("ftp: accept");
1263       (void) closesocket(data), data = -1;
1264       return (int) (NULL);
1265    }
1266         if(closesocket(data)) {
1267                 int iret=WSAGetLastError ();
1268                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1269                 (void) fflush(stdout);
1270         }
1271
1272    data = s;
1273    return (data);
1274 }
1275
1276 void ptransfer(direction, bytes, t0, t1)
1277         char *direction;
1278         long bytes;
1279         struct timeval *t0, *t1;
1280 {
1281         struct timeval td;
1282         double s, bs;
1283
1284         if (verbose) {
1285                 tvsub(&td, t1, t0);
1286                 s = td.tv_sec + (td.tv_usec / 1000000.);
1287 #define nz(x)   ((x) == 0 ? 1 : (x))
1288                 bs = bytes / nz(s);
1289                 printf("%ld bytes %s in %.2g seconds (%.2g Kbytes/s)\n",
1290                     bytes, direction, s, bs / 1024.);
1291                 (void) fflush(stdout);
1292         }
1293 }
1294
1295 /*tvadd(tsum, t0)
1296         struct timeval *tsum, *t0;
1297 {
1298
1299         tsum->tv_sec += t0->tv_sec;
1300         tsum->tv_usec += t0->tv_usec;
1301         if (tsum->tv_usec > 1000000)
1302                 tsum->tv_sec++, tsum->tv_usec -= 1000000;
1303 } */
1304
1305 void tvsub(tdiff, t1, t0)
1306         struct timeval *tdiff, *t1, *t0;
1307 {
1308
1309         tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
1310         tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
1311         if (tdiff->tv_usec < 0)
1312                 tdiff->tv_sec--, tdiff->tv_usec += 1000000;
1313 }
1314
1315 void psabort(int flag)
1316 {
1317         extern int abrtflag;
1318
1319         abrtflag++;
1320 }
1321
1322 void pswitch(int flag)
1323 {
1324         extern int proxy, abrtflag;
1325         Sig_t oldintr;
1326         static struct comvars {
1327                 int connect;
1328                 char name[MAXHOSTNAMELEN];
1329                 struct sockaddr_in mctl;
1330                 struct sockaddr_in hctl;
1331                 SOCKET in;
1332                 SOCKET out;
1333                 int tpe;
1334                 int cpnd;
1335                 int sunqe;
1336                 int runqe;
1337                 int mcse;
1338                 int ntflg;
1339                 char nti[17];
1340                 char nto[17];
1341                 int mapflg;
1342                 char mi[MAXPATHLEN];
1343                 char mo[MAXPATHLEN];
1344                 } proxstruct, tmpstruct;
1345         struct comvars *ip, *op;
1346
1347         abrtflag = 0;
1348     oldintr = signal(SIGINT, psabort);
1349         if (flag) {
1350                 if (proxy)
1351                         return;
1352                 ip = &tmpstruct;
1353                 op = &proxstruct;
1354                 proxy++;
1355         }
1356         else {
1357                 if (!proxy)
1358                         return;
1359                 ip = &proxstruct;
1360                 op = &tmpstruct;
1361                 proxy = 0;
1362         }
1363         ip->connect = connected;
1364         connected = op->connect;
1365         if (hostname) {
1366                 (void) strncpy(ip->name, hostname, sizeof(ip->name) - 1);
1367                 ip->name[strlen(ip->name)] = '\0';
1368         } else
1369                 ip->name[0] = 0;
1370         hostname = op->name;
1371         ip->hctl = hisctladdr;
1372         hisctladdr = op->hctl;
1373         ip->mctl = myctladdr;
1374         myctladdr = op->mctl;
1375         ip->in = cin;
1376         cin = op->in;
1377         ip->out = cout;
1378         cout = op->out;
1379         ip->tpe = type;
1380         type = op->tpe;
1381         if (!type)
1382                 type = 1;
1383         ip->cpnd = cpend;
1384         cpend = op->cpnd;
1385         ip->sunqe = sunique;
1386         sunique = op->sunqe;
1387         ip->runqe = runique;
1388         runique = op->runqe;
1389         ip->mcse = mcase;
1390         mcase = op->mcse;
1391         ip->ntflg = ntflag;
1392         ntflag = op->ntflg;
1393         (void) strncpy(ip->nti, ntin, 16);
1394         (ip->nti)[strlen(ip->nti)] = '\0';
1395         (void) strcpy(ntin, op->nti);
1396         (void) strncpy(ip->nto, ntout, 16);
1397         (ip->nto)[strlen(ip->nto)] = '\0';
1398         (void) strcpy(ntout, op->nto);
1399         ip->mapflg = mapflag;
1400         mapflag = op->mapflg;
1401         (void) strncpy(ip->mi, mapin, MAXPATHLEN - 1);
1402         (ip->mi)[strlen(ip->mi)] = '\0';
1403         (void) strcpy(mapin, op->mi);
1404         (void) strncpy(ip->mo, mapout, MAXPATHLEN - 1);
1405         (ip->mo)[strlen(ip->mo)] = '\0';
1406         (void) strcpy(mapout, op->mo);
1407 //        (void) signal(SIGINT, oldintr);
1408         if (abrtflag) {
1409                 abrtflag = 0;
1410                 (*oldintr)(1);
1411         }
1412 }
1413
1414 jmp_buf ptabort;
1415 int ptabflg;
1416
1417 void
1418 abortpt()
1419 {
1420         printf("\n");
1421         (void) fflush(stdout);
1422         ptabflg++;
1423         mflag = 0;
1424         abrtflag = 0;
1425         longjmp(ptabort, 1);
1426 }
1427
1428 void proxtrans(cmd, local, remote)
1429         char *cmd, *local, *remote;
1430 {
1431 //      void (*oldintr)(int);
1432         //void abortpt(int);
1433         int tmptype, oldtype = 0, secndflag = 0, nfnd;
1434         extern jmp_buf ptabort;
1435         char *cmd2;
1436 //      struct
1437         fd_set mask;
1438
1439         if (strcmp(cmd, "RETR"))
1440                 cmd2 = "RETR";
1441         else
1442                 cmd2 = runique ? "STOU" : "STOR";
1443         if (command("PASV") != COMPLETE) {
1444                 printf("proxy server does not support third part transfers.\n");
1445                 (void) fflush(stdout);
1446                 return;
1447         }
1448         tmptype = type;
1449         pswitch(0);
1450         if (!connected) {
1451                 printf("No primary connection\n");
1452                 (void) fflush(stdout);
1453                 pswitch(1);
1454                 code = -1;
1455                 return;
1456         }
1457         if (type != tmptype) {
1458                 oldtype = type;
1459                 switch (tmptype) {
1460                         case TYPE_A:
1461                                 setascii();
1462                                 break;
1463                         case TYPE_I:
1464                                 setbinary();
1465                                 break;
1466                         case TYPE_E:
1467                                 setebcdic();
1468                                 break;
1469                         case TYPE_L:
1470                                 settenex();
1471                                 break;
1472                 }
1473         }
1474         if (command("PORT %s", pasv) != COMPLETE) {
1475                 switch (oldtype) {
1476                         case 0:
1477                                 break;
1478                         case TYPE_A:
1479                                 setascii();
1480                                 break;
1481                         case TYPE_I:
1482                                 setbinary();
1483                                 break;
1484                         case TYPE_E:
1485                                 setebcdic();
1486                                 break;
1487                         case TYPE_L:
1488                                 settenex();
1489                                 break;
1490                 }
1491                 pswitch(1);
1492                 return;
1493         }
1494         if (setjmp(ptabort))
1495                 goto abort;
1496 null();//       oldintr = signal(SIGINT, abortpt);
1497         if (command("%s %s", cmd, remote) != PRELIM) {
1498 null();//               (void) signal(SIGINT, oldintr);
1499                 switch (oldtype) {
1500                         case 0:
1501                                 break;
1502                         case TYPE_A:
1503                                 setascii();
1504                                 break;
1505                         case TYPE_I:
1506                                 setbinary();
1507                                 break;
1508                         case TYPE_E:
1509                                 setebcdic();
1510                                 break;
1511                         case TYPE_L:
1512                                 settenex();
1513                                 break;
1514                 }
1515                 pswitch(1);
1516                 return;
1517         }
1518         sleep(2);
1519         pswitch(1);
1520         secndflag++;
1521         if (command("%s %s", cmd2, local) != PRELIM)
1522                 goto abort;
1523         ptflag++;
1524         (void) getreply(0);
1525         pswitch(0);
1526         (void) getreply(0);
1527 null();//       (void) signal(SIGINT, oldintr);
1528         switch (oldtype) {
1529                 case 0:
1530                         break;
1531                 case TYPE_A:
1532                         setascii();
1533                         break;
1534                 case TYPE_I:
1535                         setbinary();
1536                         break;
1537                 case TYPE_E:
1538                         setebcdic();
1539                         break;
1540                 case TYPE_L:
1541                         settenex();
1542                         break;
1543         }
1544         pswitch(1);
1545         ptflag = 0;
1546         printf("local: %s remote: %s\n", local, remote);
1547         (void) fflush(stdout);
1548         return;
1549 abort:
1550 null();//       (void) signal(SIGINT, SIG_IGN);
1551         ptflag = 0;
1552         if (strcmp(cmd, "RETR") && !proxy)
1553                 pswitch(1);
1554         else if (!strcmp(cmd, "RETR") && proxy)
1555                 pswitch(0);
1556         if (!cpend && !secndflag) {  /* only here if cmd = "STOR" (proxy=1) */
1557                 if (command("%s %s", cmd2, local) != PRELIM) {
1558                         pswitch(0);
1559                         switch (oldtype) {
1560                                 case 0:
1561                                         break;
1562                                 case TYPE_A:
1563                                         setascii();
1564                                         break;
1565                                 case TYPE_I:
1566                                         setbinary();
1567                                         break;
1568                                 case TYPE_E:
1569                                         setebcdic();
1570                                         break;
1571                                 case TYPE_L:
1572                                         settenex();
1573                                         break;
1574                         }
1575                         if (cpend) {
1576                                 char msg[2];
1577
1578                                 fprintfSocket(cout,"%c%c",IAC,IP);
1579                                 *msg = (char) IAC;
1580                                 *(msg+1) = (char) DM;
1581                                 if (send(cout,msg,2,MSG_OOB) != 2)
1582                                         perror("abort");
1583                                 fprintfSocket(cout,"ABOR\r\n");
1584                                 FD_ZERO(&mask);
1585 //                              FD_SET(fileno(cin), &mask); // Chris: Need to correct this
1586                                 if ((nfnd = empty(&mask,10)) <= 0) {
1587                                         if (nfnd < 0) {
1588                                                 perror("abort");
1589                                         }
1590                                         if (ptabflg)
1591                                                 code = -1;
1592                                         lostpeer();
1593                                 }
1594                                 (void) getreply(0);
1595                                 (void) getreply(0);
1596                         }
1597                 }
1598                 pswitch(1);
1599                 if (ptabflg)
1600                         code = -1;
1601 null();//               (void) signal(SIGINT, oldintr);
1602                 return;
1603         }
1604         if (cpend) {
1605                 char msg[2];
1606
1607                 fprintfSocket(cout,"%c%c",IAC,IP);
1608                 *msg = (char)IAC;
1609                 *(msg+1) = (char)DM;
1610                 if (send(cout,msg,2,MSG_OOB) != 2)
1611                         perror("abort");
1612                 fprintfSocket(cout,"ABOR\r\n");
1613                 FD_ZERO(&mask);
1614 //              FD_SET(fileno(cin), &mask); // Chris: Need to correct this...
1615                 if ((nfnd = empty(&mask,10)) <= 0) {
1616                         if (nfnd < 0) {
1617                                 perror("abort");
1618                         }
1619                         if (ptabflg)
1620                                 code = -1;
1621                         lostpeer();
1622                 }
1623                 (void) getreply(0);
1624                 (void) getreply(0);
1625         }
1626         pswitch(!proxy);
1627         if (!cpend && !secndflag) {  /* only if cmd = "RETR" (proxy=1) */
1628                 if (command("%s %s", cmd2, local) != PRELIM) {
1629                         pswitch(0);
1630                         switch (oldtype) {
1631                                 case 0:
1632                                         break;
1633                                 case TYPE_A:
1634                                         setascii();
1635                                         break;
1636                                 case TYPE_I:
1637                                         setbinary();
1638                                         break;
1639                                 case TYPE_E:
1640                                         setebcdic();
1641                                         break;
1642                                 case TYPE_L:
1643                                         settenex();
1644                                         break;
1645                         }
1646                         if (cpend) {
1647                                 char msg[2];
1648
1649                                 fprintfSocket(cout,"%c%c",IAC,IP);
1650                                 *msg = (char)IAC;
1651                                 *(msg+1) = (char)DM;
1652                                 if (send(cout,msg,2,MSG_OOB) != 2)
1653                                         perror("abort");
1654                                 fprintfSocket(cout,"ABOR\r\n");
1655                                 FD_ZERO(&mask);
1656 //                              FD_SET(fileno(cin), &mask); // Chris:
1657                                 if ((nfnd = empty(&mask,10)) <= 0) {
1658                                         if (nfnd < 0) {
1659                                                 perror("abort");
1660                                         }
1661                                         if (ptabflg)
1662                                                 code = -1;
1663                                         lostpeer();
1664                                 }
1665                                 (void) getreply(0);
1666                                 (void) getreply(0);
1667                         }
1668                         pswitch(1);
1669                         if (ptabflg)
1670                                 code = -1;
1671 null();//                       (void) signal(SIGINT, oldintr);
1672                         return;
1673                 }
1674         }
1675         if (cpend) {
1676                 char msg[2];
1677
1678                 fprintfSocket(cout,"%c%c",IAC,IP);
1679                 *msg = (char)IAC;
1680                 *(msg+1) = (char)DM;
1681                 if (send(cout,msg,2,MSG_OOB) != 2)
1682                         perror("abort");
1683                 fprintfSocket(cout,"ABOR\r\n");
1684                 FD_ZERO(&mask);
1685 //              FD_SET(fileno(cin), &mask); // Chris:
1686                 if ((nfnd = empty(&mask,10)) <= 0) {
1687                         if (nfnd < 0) {
1688                                 perror("abort");
1689                         }
1690                         if (ptabflg)
1691                                 code = -1;
1692                         lostpeer();
1693                 }
1694                 (void) getreply(0);
1695                 (void) getreply(0);
1696         }
1697         pswitch(!proxy);
1698         if (cpend) {
1699                 FD_ZERO(&mask);
1700 //              FD_SET(fileno(cin), &mask); // Chris:
1701                 if ((nfnd = empty(&mask,10)) <= 0) {
1702                         if (nfnd < 0) {
1703                                 perror("abort");
1704                         }
1705                         if (ptabflg)
1706                                 code = -1;
1707                         lostpeer();
1708                 }
1709                 (void) getreply(0);
1710                 (void) getreply(0);
1711         }
1712         if (proxy)
1713                 pswitch(0);
1714         switch (oldtype) {
1715                 case 0:
1716                         break;
1717                 case TYPE_A:
1718                         setascii();
1719                         break;
1720                 case TYPE_I:
1721                         setbinary();
1722                         break;
1723                 case TYPE_E:
1724                         setebcdic();
1725                         break;
1726                 case TYPE_L:
1727                         settenex();
1728                         break;
1729         }
1730         pswitch(1);
1731         if (ptabflg)
1732                 code = -1;
1733 null();//       (void) signal(SIGINT, oldintr);
1734 }
1735
1736 void reset()
1737 {
1738 //      struct
1739         fd_set mask;
1740         int nfnd = 1;
1741
1742         FD_ZERO(&mask);
1743         while (nfnd > 0) {
1744 //              FD_SET(fileno(cin), &mask); // Chris
1745                 if ((nfnd = empty(&mask,0)) < 0) {
1746                         perror("reset");
1747                         code = -1;
1748                         lostpeer();
1749                 }
1750                 else if (nfnd) {
1751                         (void) getreply(0);
1752                 }
1753         }
1754 }
1755
1756 char *
1757 gunique(local)
1758         char *local;
1759 {
1760         static char new[MAXPATHLEN];
1761         char *cp = rindex(local, '/');
1762         int d, count=0;
1763         char ext = '1';
1764
1765         if (cp)
1766                 *cp = '\0';
1767         d = access(cp ? local : ".", 2);
1768         if (cp)
1769                 *cp = '/';
1770         if (d < 0) {
1771                 perror(local);
1772                 return((char *) 0);
1773         }
1774         (void) strcpy(new, local);
1775         cp = new + strlen(new);
1776         *cp++ = '.';
1777         while (!d) {
1778                 if (++count == 100) {
1779                         printf("runique: can't find unique file name.\n");
1780                         (void) fflush(stdout);
1781                         return((char *) 0);
1782                 }
1783                 *cp++ = ext;
1784                 *cp = '\0';
1785                 if (ext == '9')
1786                         ext = '0';
1787                 else
1788                         ext++;
1789                 if ((d = access(new, 0)) < 0)
1790                         break;
1791                 if (ext != '0')
1792                         cp--;
1793                 else if (*(cp - 2) == '.')
1794                         *(cp - 1) = '1';
1795                 else {
1796                         *(cp - 2) = *(cp - 2) + 1;
1797                         cp--;
1798                 }
1799         }
1800         return(new);
1801 }
1802
1803 int null(void)
1804 {
1805    return 0;
1806 }