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 != (unsigned long)-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 int
 324 getreply(expecteof)
 325         int expecteof;
 326 {
 327         register int c, n;
 328         register int dig;
 329         register char *cp;
 330         int originalcode = 0, continuation = 0;
 331         void (*oldintr)(int), cmdabort(int);
 332         int pflag = 0;
 333         char *pt = pasv;
 334
 335         oldintr = signal(SIGINT,cmdabort);
 336         for (;;) {
 337                 dig = n = code = 0;
 338                 cp = reply_string;
 339                 while ((c = fgetcSocket(cin)) != '\n') {
 340                         if (c == IAC) {     /* handle telnet commands */
 341                                 switch (c = fgetcSocket(cin)) {
 342                                 case WILL:
 343                                 case WONT:
 344                                         c = fgetcSocket(cin);
 345                                         fprintfSocket(cout, "%c%c%c",IAC,DONT,c);
 346                                         break;
 347                                 case DO:
 348                                 case DONT:
 349                                         c = fgetcSocket(cin);
 350                                         fprintfSocket(cout, "%c%c%c",IAC,WONT,c);
 351                                         break;
 352                                 default:
 353                                         break;
 354                                 }
 355                                 continue;
 356                         }
 357                         dig++;
 358                         if (c == EOF) {
 359                                 if (expecteof) {
 360 //                                      (void) signal(SIGINT,oldintr);
 361                                         code = 221;
 362                                         return (0);
 363                                 }
 364                                 lostpeer();
 365                                 if (verbose) {
 366                                         printf("421 Service not available, remote server has closed connection\n");
 367                                         (void) fflush(stdout);
 368                                 }
 369                                 code = 421;
 370                                 return(4);
 371                         }
 372                         if (c != '\r' && (verbose > 0 ||
 373                             (verbose > -1 && n == '5' && dig > 4))) {
 374                                 if (proxflag &&
 375                                    ((dig == 1 || dig == 5) && verbose == 0))
 376                                         printf("%s:",hostname);
 377                                 (void) putchar(c);
 378                                 (void) fflush(stdout);
 379                         }
 380                         if (dig < 4 && isdigit(c))
 381                                 code = code * 10 + (c - '0');
 382                         if (!pflag && code == 227)
 383                                 pflag = 1;
 384                         if (dig > 4 && pflag == 1 && isdigit(c))
 385                                 pflag = 2;
 386                         if (pflag == 2) {
 387                                 if (c != '\r' && c != ')')
 388                                         *pt++ = c;
 389                                 else {
 390                                         *pt = '\0';
 391                                         pflag = 3;
 392                                 }
 393                         }
 394                         if (dig == 4 && c == '-') {
 395                                 if (continuation)
 396                                         code = 0;
 397                                 continuation++;
 398                         }
 399                         if (n == 0)
 400                                 n = c;
 401                         if (cp < &reply_string[sizeof(reply_string) - 1])
 402                                 *cp++ = c;
 403                 }
 404                 if (verbose > 0 || (verbose > -1 && n == '5')) {
 405                         (void) putchar(c);
 406                         (void) fflush (stdout);
 407                 }
 408                 if (continuation && code != originalcode) {
 409                         if (originalcode == 0)
 410                                 originalcode = code;
 411                         continue;
 412                 }
 413                 *cp = '\0';
 414                 if (n != '1')
 415                         cpend = 0;
 416                 (void) signal(SIGINT,oldintr);
 417                 if (code == 421 || originalcode == 421)
 418                         lostpeer();
 419                 if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN)
 420                         (*oldintr)(SIGINT);
 421                 return (n - '0');
 422         }
 423 }
 424
 425 int
 426 empty(mask, sec)
 427         struct fd_set *mask;
 428         int sec;
 429 {
 430         struct timeval t;
 431
 432         t.tv_sec = (long) sec;
 433         t.tv_usec = 0;
 434         return(select(32, mask, (struct fd_set *) 0, (struct fd_set *) 0, &t));
 435 }
 436
 437 jmp_buf sendabort;
 438
 439 void abortsend()
 440 {
 441
 442         mflag = 0;
 443         abrtflag = 0;
 444         printf("\nsend aborted\n");
 445         (void) fflush(stdout);
 446         longjmp(sendabort, 1);
 447 }
 448
 449 #define HASHBYTES 1024
 450
 451 void sendrequest(char *cmd, char *local, char *remote, int printnames)
 452 {
 453         FILE *fin;
 454         int dout = 0;
 455         int (*closefunc)(), _pclose(), fclose();
 456         sig_t (*oldintr)(), (*oldintp)();
 457         void abortsend();
 458         char buf[BUFSIZ], *bufp;
 459         long bytes = 0, hashbytes = HASHBYTES;
 460         register int c, d;
 461         struct stat st;
 462         struct timeval start, stop;
 463         char *mode;
 464
 465         if (verbose && printnames) {
 466                 if (local && *local != '-')
 467                         printf("local: %s ", local);
 468                 if (remote)
 469                         printf("remote: %s\n", remote);
 470                 (void) fflush(stdout);
 471         }
 472         if (proxy) {
 473                 proxtrans(cmd, local, remote);
 474                 return;
 475         }
 476         closefunc = NULL;
 477         oldintr = NULL;
 478         oldintp = NULL;
 479         mode = "w";
 480         if (setjmp(sendabort)) {
 481                 while (cpend) {
 482                         (void) getreply(0);
 483                 }
 484                 if (data >= 0) {
 485                         (void) close(data);
 486                         data = -1;
 487                 }
 488                 if (oldintr)
 489 null();//                       (void) signal(SIGINT,oldintr);
 490                 if (oldintp)
 491 null();//                       (void) signal(SIGPIPE,oldintp);
 492                 code = -1;
 493                 return;
 494         }
 495 null();//       oldintr = signal(SIGINT, abortsend);
 496         if (strcmp(local, "-") == 0)
 497                 fin = stdin;
 498         else if (*local == '|') {
 499 null();//               oldintp = signal(SIGPIPE,SIG_IGN);
 500                 fin = _popen(local + 1, "r");
 501                 if (fin == NULL) {
 502                         perror(local + 1);
 503 null();//                       (void) signal(SIGINT, oldintr);
 504 null();//                       (void) signal(SIGPIPE, oldintp);
 505                         code = -1;
 506                         return;
 507                 }
 508                 closefunc = _pclose;
 509         } else {
 510                 fin = fopen(local, "r");
 511                 if (fin == NULL) {
 512                         perror(local);
 513 null();//                       (void) signal(SIGINT, oldintr);
 514                         code = -1;
 515                         return;
 516                 }
 517                 closefunc = fclose;
 518                 if (fstat(fileno(fin), &st) < 0 ||
 519                     (st.st_mode&S_IFMT) != S_IFREG) {
 520                         fprintf(stdout, "%s: not a plain file.\n", local);
 521                         (void) fflush(stdout);
 522 null();//                       (void) signal(SIGINT, oldintr);
 523                         fclose(fin);
 524                         code = -1;
 525                         return;
 526                 }
 527         }
 528         if (initconn()) {
 529 null();//               (void) signal(SIGINT, oldintr);
 530                 if (oldintp)
 531 null();//                       (void) signal(SIGPIPE, oldintp);
 532                 code = -1;
 533                 if (closefunc != NULL)
 534                         (*closefunc)(fin);
 535                 return;
 536         }
 537         if (setjmp(sendabort))
 538                 goto abort;
 539
 540         if (restart_point &&
 541             (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
 542                 if (fseek(fin, (long) restart_point, 0) < 0) {
 543                         perror(local);
 544                         restart_point = 0;
 545                         if (closefunc != NULL)
 546                                 (*closefunc)(fin);
 547                         return;
 548                 }
 549                 if (command("REST %ld", (long) restart_point)
 550                         != CONTINUE) {
 551                         restart_point = 0;
 552                         if (closefunc != NULL)
 553                                 (*closefunc)(fin);
 554                         return;
 555                 }
 556                 restart_point = 0;
 557                 mode = "r+w";
 558         }
 559         if (remote) {
 560                 if (command("%s %s", cmd, remote) != PRELIM) {
 561 null();//                       (void) signal(SIGINT, oldintr);
 562                         if (oldintp)
 563 null();//                               (void) signal(SIGPIPE, oldintp);
 564                         if (closefunc != NULL)
 565                                 (*closefunc)(fin);
 566                         return;
 567                 }
 568         } else
 569                 if (command("%s", cmd) != PRELIM) {
 570 null();//                       (void) signal(SIGINT, oldintr);
 571                         if (oldintp)
 572 null();//                               (void) signal(SIGPIPE, oldintp);
 573                         if (closefunc != NULL)
 574                                 (*closefunc)(fin);
 575                         return;
 576                 }
 577         dout = dataconn(mode);
 578         if (dout == (int)NULL)
 579                 goto abort;
 580         (void) gettimeofday(&start, (struct timezone *)0);
 581 null();//       oldintp = signal(SIGPIPE, SIG_IGN);
 582         switch (type) {
 583
 584         case TYPE_I:
 585         case TYPE_L:
 586                 errno = d = 0;
 587                 while ((c = read(fileno(fin), buf, sizeof (buf))) > 0) {
 588                         bytes += c;
 589                         for (bufp = buf; c > 0; c -= d, bufp += d)
 590                                 if ((d = send(dout, bufp, c, 0)) <= 0)
 591                                         break;
 592                         if (hash) {
 593                                 while (bytes >= hashbytes) {
 594                                         (void) putchar('#');
 595                                         hashbytes += HASHBYTES;
 596                                 }
 597                                 (void) fflush(stdout);
 598                         }
 599                 }
 600                 if (hash && bytes > 0) {
 601                         if (bytes < HASHBYTES)
 602                                 (void) putchar('#');
 603                         (void) putchar('\n');
 604                         (void) fflush(stdout);
 605                 }
 606                 if (c < 0)
 607                         perror(local);
 608                 if (d <= 0) {
 609                         if (d == 0)
 610                                 fprintf(stderr, "netout: write returned 0?\n");
 611                         else if (errno != EPIPE)
 612                                 perror("netout");
 613                         bytes = -1;
 614                 }
 615                 break;
 616
 617         case TYPE_A:
 618                 {
 619         char buf[1024];
 620                 static int bufsize = 1024;
 621                 int ipos=0;
 622
 623                 while ((c = getc(fin)) != EOF) {
 624                    if (c == '\n') {
 625                       while (hash && (bytes >= hashbytes)) {
 626                          (void) putchar('#');
 627                          (void) fflush(stdout);
 628                          hashbytes += HASHBYTES;
 629                       }
 630 // Szurgot: The following code is unncessary on Win32.
 631 //                      (void) fputcSocket(dout, '\r');
 632 //                         bytes++;
 633                    }
 634
 635                                    if (ipos >= bufsize) {
 636                                                 fputSocket(dout,buf,ipos);
 637                                                 if(!hash) (void) putchar('.');
 638                                                 ipos=0;
 639                                    }
 640                                    buf[ipos]=c; ++ipos;
 641                                    bytes++;
 642                 }
 643                 if (ipos) {
 644                         fputSocket(dout,buf,ipos);
 645                         ipos=0;
 646                 }
 647                 if (hash) {
 648                    if (bytes < hashbytes)
 649                       (void) putchar('#');
 650                    (void) putchar('\n');
 651                    (void) fflush(stdout);
 652                 }
 653                 else {
 654                         (void) putchar('.');
 655                         (void) putchar('\n');
 656                         (void) fflush(stdout);
 657                 }
 658                 if (ferror(fin))
 659                    perror(local);
 660 //              if (ferror(dout)) {
 661 //                      if (errno != EPIPE)
 662 //                              perror("netout");
 663 //                      bytes = -1;
 664 //              }
 665                 break;
 666                 }
 667         }
 668         (void) gettimeofday(&stop, (struct timezone *)0);
 669         if (closefunc != NULL)
 670                 (*closefunc)(fin);
 671         if(closesocket(dout)) {
 672                 int iret=WSAGetLastError ();
 673                 fprintf(stdout,"Error closing socket(%d)\n",iret);
 674                 (void) fflush(stdout);
 675         }
 676         (void) getreply(0);
 677 null();//       (void) signal(SIGINT, oldintr);
 678         if (oldintp)
 679 null();//               (void) signal(SIGPIPE, oldintp);
 680         if (bytes > 0)
 681                 ptransfer("sent", bytes, &start, &stop);
 682         return;
 683 abort:
 684         (void) gettimeofday(&stop, (struct timezone *)0);
 685 null();//       (void) signal(SIGINT, oldintr);
 686         if (oldintp)
 687 null();//               (void) signal(SIGPIPE, oldintp);
 688         if (!cpend) {
 689                 code = -1;
 690                 return;
 691         }
 692         if (data >= 0) {
 693                 (void) close(data);
 694                 data = -1;
 695         }
 696         if (dout)
 697                 if(closesocket(dout)) {
 698                         int iret=WSAGetLastError ();
 699                         fprintf(stdout,"Error closing socket(%d)\n",iret);
 700                         (void) fflush(stdout);
 701                 }
 702
 703         (void) getreply(0);
 704         code = -1;
 705         if (closefunc != NULL && fin != NULL)
 706                 (*closefunc)(fin);
 707         if (bytes > 0)
 708                 ptransfer("sent", bytes, &start, &stop);
 709 }
 710
 711 jmp_buf recvabort;
 712
 713
 714 void abortrecv()
 715 {
 716
 717         mflag = 0;
 718         abrtflag = 0;
 719         printf("\n");
 720         (void) fflush(stdout);
 721         longjmp(recvabort, 1);
 722 }
 723
 724 void recvrequest(char *cmd, char *local, char *remote, char *mode,
 725                 int printnames)
 726 {
 727         FILE *fout;
 728         int din = 0;
 729         int (*closefunc)(), _pclose(), fclose();
 730         void (*oldintr)(int), (*oldintp)(int);
 731         void abortrecv();
 732         int oldverbose, oldtype = 0, is_retr, tcrflag, nfnd, bare_lfs = 0;
 733         char *gunique(), msg;
 734 //      static char *buf; // Szurgot: Shouldn't this go SOMEWHERE?
 735         char buf[1024];
 736         static int bufsize = 1024;
 737         long bytes = 0, hashbytes = HASHBYTES;
 738 //      struct
 739                 fd_set mask;
 740         register int c, d;
 741         struct timeval start, stop;
 742 //      struct stat st;
 743         extern void *malloc();
 744
 745         is_retr = strcmp(cmd, "RETR") == 0;
 746         if (is_retr && verbose && printnames) {
 747                 if (local && *local != '-')
 748                         printf("local: %s ", local);
 749                 if (remote)
 750                         printf("remote: %s\n", remote);
 751                 (void) fflush(stdout);
 752         }
 753         if (proxy && is_retr) {
 754                 proxtrans(cmd, local, remote);
 755                 return;
 756         }
 757         closefunc = NULL;
 758         oldintr = NULL;
 759         oldintp = NULL;
 760         tcrflag = !crflag && is_retr;
 761         if (setjmp(recvabort)) {
 762                 while (cpend) {
 763                         (void) getreply(0);
 764                 }
 765                 if (data >= 0) {
 766                         (void) close(data);
 767                         data = -1;
 768                 }
 769                 if (oldintr)
 770 null();//                       (void) signal(SIGINT, oldintr);
 771                 code = -1;
 772                 return;
 773         }
 774 null();//       oldintr = signal(SIGINT, abortrecv);
 775         if (strcmp(local, "-") && *local != '|') {
 776 #ifndef __WIN32__
 777 // This whole thing is a problem... access Won't work on non-existent files
 778            if (access(local, 2) < 0) {
 779               char *dir = rindex(local, '/');
 780
 781               if (errno != ENOENT && errno != EACCES) {
 782                  perror(local);
 783                  (void) signal(SIGINT, oldintr);
 784                  code = -1;
 785                  return;
 786               }
 787               if (dir != NULL)
 788                  *dir = 0;
 789               d = access(dir ? local : ".", 2);
 790               if (dir != NULL)
 791                  *dir = '/';
 792               if (d < 0) {
 793                  perror(local);
 794                  (void) signal(SIGINT, oldintr);
 795                  code = -1;
 796                  return;
 797               }
 798               if (!runique && errno == EACCES &&
 799                   chmod(local, 0600) < 0) {
 800                  perror(local);
 801                  (void) signal(SIGINT, oldintr);
 802                  code = -1;
 803                  return;
 804               }
 805               if (runique && errno == EACCES &&
 806                   (local = gunique(local)) == NULL) {
 807                  (void) signal(SIGINT, oldintr);
 808                  code = -1;
 809                  return;
 810               }
 811            }
 812            else if (runique && (local = gunique(local)) == NULL) {
 813               (void) signal(SIGINT, oldintr);
 814               code = -1;
 815               return;
 816            }
 817 #endif
 818         }
 819         if (initconn()) {
 820 null();//               (void) signal(SIGINT, oldintr);
 821                 code = -1;
 822                 return;
 823         }
 824         if (setjmp(recvabort))
 825                 goto abort;
 826         if (!is_retr) {
 827                 if (type != TYPE_A && (allbinary == 0 || type != TYPE_I)) {
 828                         oldtype = type;
 829                         oldverbose = verbose;
 830                         if (!debug)
 831                                 verbose = 0;
 832                         setascii();
 833                         verbose = oldverbose;
 834                 }
 835         } else if (restart_point) {
 836                 if (command("REST %ld", (long) restart_point) != CONTINUE)
 837                         return;
 838         }
 839         if (remote) {
 840                 if (command("%s %s", cmd, remote) != PRELIM) {
 841 null();//                       (void) signal(SIGINT, oldintr);
 842                         if (oldtype) {
 843                                 if (!debug)
 844                                         verbose = 0;
 845                                 switch (oldtype) {
 846                                         case TYPE_I:
 847                                                 setbinary();
 848                                                 break;
 849                                         case TYPE_E:
 850                                                 setebcdic();
 851                                                 break;
 852                                         case TYPE_L:
 853                                                 settenex();
 854                                                 break;
 855                                 }
 856                                 verbose = oldverbose;
 857                         }
 858                         return;
 859                 }
 860         } else {
 861                 if (command("%s", cmd) != PRELIM) {
 862 null();//                       (void) signal(SIGINT, oldintr);
 863                         if (oldtype) {
 864                                 if (!debug)
 865                                         verbose = 0;
 866                                 switch (oldtype) {
 867                                         case TYPE_I:
 868                                                 setbinary();
 869                                                 break;
 870                                         case TYPE_E:
 871                                                 setebcdic();
 872                                                 break;
 873                                         case TYPE_L:
 874                                                 settenex();
 875                                                 break;
 876                                 }
 877                                 verbose = oldverbose;
 878                         }
 879                         return;
 880                 }
 881         }
 882         din = dataconn("r");
 883         if (din == (int)NULL)
 884                 goto abort;
 885         if (strcmp(local, "-") == 0)
 886                 fout = stdout;
 887         else if (*local == '|') {
 888 null();//               oldintp = signal(SIGPIPE, SIG_IGN);
 889                 fout = _popen(local + 1, "w");
 890                 if (fout == NULL) {
 891                         perror(local+1);
 892                         goto abort;
 893                 }
 894                 closefunc = _pclose;
 895         } else {
 896                 fout = fopen(local, mode);
 897                 if (fout == NULL) {
 898                         perror(local);
 899                         goto abort;
 900                 }
 901                 closefunc = fclose;
 902         }
 903         (void) gettimeofday(&start, (struct timezone *)0);
 904         switch (type) {
 905
 906         case TYPE_I:
 907         case TYPE_L:
 908                 if (restart_point &&
 909                     lseek(fileno(fout), (long) restart_point, L_SET) < 0) {
 910                         perror(local);
 911                         if (closefunc != NULL)
 912                                 (*closefunc)(fout);
 913                         return;
 914                 }
 915                 errno = d = 0;
 916 //              while ((c = recv(din, buf, bufsize, 1)) > 0) {
 917 //                      if ((d = write(fileno(fout), buf, c)) != c)
 918 //                      if ((d = write(fileno(fout), buf, c)) != c)
 919 //                              break;
 920                 while ((c = recv(din, buf, bufsize, 0)) > 0) {
 921                    write(fileno(fout), buf, c);
 922                    bytes += c;
 923                    if (hash) {
 924                       while (bytes >= hashbytes) {
 925                          (void) putchar('#');
 926                          hashbytes += HASHBYTES;
 927                       }
 928                       (void) fflush(stdout);
 929                    }
 930                 }
 931                 if (hash && bytes > 0) {
 932                         if (bytes < HASHBYTES)
 933                                 (void) putchar('#');
 934                         (void) putchar('\n');
 935                         (void) fflush(stdout);
 936                 }
 937 //              if (c < 0) {
 938 //                      if (errno != EPIPE)
 939 //                              perror("netin");
 940 //                      bytes = -1;
 941 //              }
 942 //              if (d < c) {
 943 //                      if (d < 0)
 944 //                              perror(local);
 945 //                      else
 946 //                              fprintf(stderr, "%s: short write\n", local);
 947 //              }
 948                 break;
 949
 950         case TYPE_A:
 951                 if (restart_point) {
 952                         register int i, n, c;
 953
 954                         if (fseek(fout, 0L, L_SET) < 0)
 955                                 goto done;
 956                         n = restart_point;
 957                         i = 0;
 958                         while (i++ < n) {
 959                                 if ((c=getc(fout)) == EOF)
 960                                         goto done;
 961                                 if (c == '\n')
 962                                         i++;
 963                         }
 964                         if (fseek(fout, 0L, L_INCR) < 0) {
 965 done:
 966                                 perror(local);
 967                                 if (closefunc != NULL)
 968                                         (*closefunc)(fout);
 969                                 return;
 970                         }
 971                 }
 972                 while ((c = fgetcSocket(din)) != EOF) {
 973                         if (c == '\n')
 974                                 bare_lfs++;
 975                         while (c == '\r') {
 976                            while (hash && (bytes >= hashbytes)) {
 977                               (void) putchar('#');
 978                               (void) fflush(stdout);
 979                               hashbytes += HASHBYTES;
 980                            }
 981                            bytes++;
 982                            if ((c = fgetcSocket(din)) != '\n' || tcrflag) {
 983                               if (ferror(fout))
 984                                  goto break2;
 985                               (void) putc('\r', fout);
 986                               if (c == '\0') {
 987                                  bytes++;
 988                                  goto contin2;
 989                               }
 990                               if (c == EOF)
 991                                  goto contin2;
 992                            }
 993                         }
 994                         (void) putc(c, fout);
 995                         bytes++;
 996         contin2:        ;
 997                 }
 998 break2:
 999                 if (bare_lfs) {
1000                         printf("WARNING! %d bare linefeeds received in ASCII mode\n", bare_lfs);
1001                         printf("File may not have transferred correctly.\n");
1002                         (void) fflush(stdout);
1003                 }
1004                 if (hash) {
1005                         if (bytes < hashbytes)
1006                                 (void) putchar('#');
1007                         (void) putchar('\n');
1008                         (void) fflush(stdout);
1009                 }
1010 //              if (ferror(din)) {
1011 //                      if (errno != EPIPE)
1012 //                              perror("netin");
1013 //                      bytes = -1;
1014 //              }
1015                 if (ferror(fout))
1016                         perror(local);
1017                 break;
1018         }
1019         if (closefunc != NULL)
1020                 (*closefunc)(fout);
1021 null();//       (void) signal(SIGINT, oldintr);
1022         if (oldintp)
1023 null();//               (void) signal(SIGPIPE, oldintp);
1024         (void) gettimeofday(&stop, (struct timezone *)0);
1025         if(closesocket(din)) {
1026                 int iret=WSAGetLastError ();
1027                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1028                 (void) fflush(stdout);
1029         }
1030
1031         (void) getreply(0);
1032         if (bytes > 0 && is_retr)
1033                 ptransfer("received", bytes, &start, &stop);
1034         if (oldtype) {
1035                 if (!debug)
1036                         verbose = 0;
1037                 switch (oldtype) {
1038                         case TYPE_I:
1039                                 setbinary();
1040                                 break;
1041                         case TYPE_E:
1042                                 setebcdic();
1043                                 break;
1044                         case TYPE_L:
1045                                 settenex();
1046                                 break;
1047                 }
1048                 verbose = oldverbose;
1049         }
1050         return;
1051 abort:
1052
1053 /* abort using RFC959 recommended IP,SYNC sequence  */
1054
1055         (void) gettimeofday(&stop, (struct timezone *)0);
1056         if (oldintp)
1057 null();//               (void) signal(SIGPIPE, oldintr);
1058 null();//       (void) signal(SIGINT,SIG_IGN);
1059         if (oldtype) {
1060                 if (!debug)
1061                         verbose = 0;
1062                 switch (oldtype) {
1063                         case TYPE_I:
1064                                 setbinary();
1065                                 break;
1066                         case TYPE_E:
1067                                 setebcdic();
1068                                 break;
1069                         case TYPE_L:
1070                                 settenex();
1071                                 break;
1072                 }
1073                 verbose = oldverbose;
1074         }
1075         if (!cpend) {
1076                 code = -1;
1077 null();//               (void) signal(SIGINT,oldintr);
1078                 return;
1079         }
1080
1081         fprintfSocket(cout,"%c%c",IAC,IP);
1082         msg = (char)IAC;
1083 /* send IAC in urgent mode instead of DM because UNIX places oob mark */
1084 /* after urgent byte rather than before as now is protocol            */
1085         if (send(cout,&msg,1,MSG_OOB) != 1) {
1086                 perror("abort");
1087         }
1088         fprintfSocket(cout,"%cABOR\r\n",DM);
1089         FD_ZERO(&mask);
1090         FD_SET(cin, &mask); // Need to correct this
1091         if (din) {
1092                 FD_SET(din, &mask); // Need to correct this
1093         }
1094         if ((nfnd = empty(&mask,10)) <= 0) {
1095                 if (nfnd < 0) {
1096                         perror("abort");
1097                 }
1098                 code = -1;
1099                 lostpeer();
1100         }
1101         if (din && FD_ISSET(din, &mask)) {
1102                 while ((c = recv(din, buf, bufsize, 0)) > 0)
1103                         ;
1104         }
1105         if ((c = getreply(0)) == ERROR && code == 552) { /* needed for nic style abort */
1106                 if (data >= 0) {
1107                         (void) close(data);
1108                         data = -1;
1109                 }
1110                 (void) getreply(0);
1111         }
1112         (void) getreply(0);
1113         code = -1;
1114         if (data >= 0) {
1115                 (void) close(data);
1116                 data = -1;
1117         }
1118         if (closefunc != NULL && fout != NULL)
1119                 (*closefunc)(fout);
1120         if (din)
1121                 if(closesocket(din)) {
1122                         int iret=WSAGetLastError ();
1123                         fprintf(stdout,"Error closing socket(%d)\n",iret);
1124                         (void) fflush(stdout);
1125                 }
1126
1127         if (bytes > 0)
1128                 ptransfer("received", bytes, &start, &stop);
1129 null();//       (void) signal(SIGINT,oldintr);
1130 }
1131
1132 /*
1133  * Need to start a listen on the data channel
1134  * before we send the command, otherwise the
1135  * server's connect may fail.
1136  */
1137 int sendport = -1;
1138
1139 int
1140 initconn()
1141 {
1142         register char *p, *a;
1143         int result, len, tmpno = 0;
1144         int on = 1;
1145         int a0, a1, a2, a3, p0, p1;
1146
1147
1148         if (passivemode) {
1149       data = socket(AF_INET, SOCK_STREAM, 0);
1150       if (data < 0) {
1151         perror("ftp: socket");
1152         return(1);
1153       }
1154       if ((options & SO_DEBUG) &&
1155           setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1156                      sizeof (on)) < 0)
1157         perror("ftp: setsockopt (ignored)");
1158       if (command("PASV") != COMPLETE) {
1159         printf("Passive mode refused.\n");
1160         goto bad;
1161       }
1162
1163       /*
1164        * What we've got at this point is a string of comma
1165        * separated one-byte unsigned integer values.
1166        * The first four are the an IP address. The fifth is
1167        * the MSB of the port number, the sixth is the LSB.
1168        * From that we'll prepare a sockaddr_in.
1169        */
1170
1171       if (sscanf(pasv,"%d,%d,%d,%d,%d,%d",
1172                  &a0, &a1, &a2, &a3, &p0, &p1) != 6) {
1173         printf("Passive mode address scan failure. Shouldn't happen!\n");
1174         goto bad;
1175       }
1176
1177       bzero(&data_addr, sizeof(data_addr));
1178       data_addr.sin_family = AF_INET;
1179       a = (char *)&data_addr.sin_addr.s_addr;
1180       a[0] = a0 & 0xff;
1181       a[1] = a1 & 0xff;
1182       a[2] = a2 & 0xff;
1183       a[3] = a3 & 0xff;
1184       p = (char *)&data_addr.sin_port;
1185       p[0] = p0 & 0xff;
1186       p[1] = p1 & 0xff;
1187
1188       if (connect(data, (struct sockaddr *)&data_addr,
1189                   sizeof(data_addr)) < 0) {
1190         perror("ftp: connect");
1191         goto bad;
1192       }
1193       return(0);
1194         }
1195
1196
1197 noport:
1198         data_addr = myctladdr;
1199         if (sendport)
1200                 data_addr.sin_port = 0; /* let system pick one */
1201         if (data != -1)
1202                 (void) close (data);
1203         data = socket(AF_INET, SOCK_STREAM, 0);
1204         if (data < 0) {
1205                 perror("ftp: socket");
1206                 if (tmpno)
1207                         sendport = 1;
1208                 return (1);
1209         }
1210         if (!sendport)
1211                 if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) {
1212                         perror("ftp: setsockopt (reuse address)");
1213                         goto bad;
1214                 }
1215         if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) {
1216                 perror("ftp: bind");
1217                 goto bad;
1218         }
1219         if (options & SO_DEBUG &&
1220             setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0)
1221                 perror("ftp: setsockopt (ignored)");
1222         len = sizeof (data_addr);
1223         if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
1224                 perror("ftp: getsockname");
1225                 goto bad;
1226         }
1227         if (listen(data, 1) < 0)
1228                 perror("ftp: listen");
1229         if (sendport) {
1230                 a = (char *)&data_addr.sin_addr;
1231                 p = (char *)&data_addr.sin_port;
1232 #define UC(b)   (((int)b)&0xff)
1233                 result =
1234                     command("PORT %d,%d,%d,%d,%d,%d",
1235                       UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1236                       UC(p[0]), UC(p[1]));
1237                 if (result == ERROR && sendport == -1) {
1238                         sendport = 0;
1239                         tmpno = 1;
1240                         goto noport;
1241                 }
1242                 return (result != COMPLETE);
1243         }
1244         if (tmpno)
1245                 sendport = 1;
1246         return (0);
1247 bad:
1248         (void) fflush(stdout);
1249         (void) close(data), data = -1;
1250         if (tmpno)
1251                 sendport = 1;
1252         return (1);
1253 }
1254
1255 int dataconn(char *mode)
1256 {
1257    struct sockaddr_in from;
1258    int s, fromlen = sizeof (from);
1259
1260    if (passivemode)
1261      return (data);
1262
1263    s = accept(data, (struct sockaddr *) &from, &fromlen);
1264    if (s < 0) {
1265       perror("ftp: accept");
1266       (void) closesocket(data), data = -1;
1267       return (int) (NULL);
1268    }
1269         if(closesocket(data)) {
1270                 int iret=WSAGetLastError ();
1271                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1272                 (void) fflush(stdout);
1273         }
1274
1275    data = s;
1276    return (data);
1277 }
1278
1279 void ptransfer(direction, bytes, t0, t1)
1280         char *direction;
1281         long bytes;
1282         struct timeval *t0, *t1;
1283 {
1284         struct timeval td;
1285         double s, bs;
1286
1287         if (verbose) {
1288                 tvsub(&td, t1, t0);
1289                 s = td.tv_sec + (td.tv_usec / 1000000.);
1290 #define nz(x)   ((x) == 0 ? 1 : (x))
1291                 bs = bytes / nz(s);
1292                 printf("%ld bytes %s in %.2g seconds (%.2g Kbytes/s)\n",
1293                     bytes, direction, s, bs / 1024.);
1294                 (void) fflush(stdout);
1295         }
1296 }
1297
1298 /*tvadd(tsum, t0)
1299         struct timeval *tsum, *t0;
1300 {
1301
1302         tsum->tv_sec += t0->tv_sec;
1303         tsum->tv_usec += t0->tv_usec;
1304         if (tsum->tv_usec > 1000000)
1305                 tsum->tv_sec++, tsum->tv_usec -= 1000000;
1306 } */
1307
1308 void tvsub(tdiff, t1, t0)
1309         struct timeval *tdiff, *t1, *t0;
1310 {
1311
1312         tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
1313         tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
1314         if (tdiff->tv_usec < 0)
1315                 tdiff->tv_sec--, tdiff->tv_usec += 1000000;
1316 }
1317
1318 void psabort(int flag)
1319 {
1320         extern int abrtflag;
1321
1322         abrtflag++;
1323 }
1324
1325 void pswitch(int flag)
1326 {
1327         extern int proxy, abrtflag;
1328         Sig_t oldintr;
1329         static struct comvars {
1330                 int connect;
1331                 char name[MAXHOSTNAMELEN];
1332                 struct sockaddr_in mctl;
1333                 struct sockaddr_in hctl;
1334                 SOCKET in;
1335                 SOCKET out;
1336                 int tpe;
1337                 int cpnd;
1338                 int sunqe;
1339                 int runqe;
1340                 int mcse;
1341                 int ntflg;
1342                 char nti[17];
1343                 char nto[17];
1344                 int mapflg;
1345                 char mi[MAXPATHLEN];
1346                 char mo[MAXPATHLEN];
1347                 } proxstruct, tmpstruct;
1348         struct comvars *ip, *op;
1349
1350         abrtflag = 0;
1351     oldintr = signal(SIGINT, psabort);
1352         if (flag) {
1353                 if (proxy)
1354                         return;
1355                 ip = &tmpstruct;
1356                 op = &proxstruct;
1357                 proxy++;
1358         }
1359         else {
1360                 if (!proxy)
1361                         return;
1362                 ip = &proxstruct;
1363                 op = &tmpstruct;
1364                 proxy = 0;
1365         }
1366         ip->connect = connected;
1367         connected = op->connect;
1368         if (hostname) {
1369                 (void) strncpy(ip->name, hostname, sizeof(ip->name) - 1);
1370                 ip->name[strlen(ip->name)] = '\0';
1371         } else
1372                 ip->name[0] = 0;
1373         hostname = op->name;
1374         ip->hctl = hisctladdr;
1375         hisctladdr = op->hctl;
1376         ip->mctl = myctladdr;
1377         myctladdr = op->mctl;
1378         ip->in = cin;
1379         cin = op->in;
1380         ip->out = cout;
1381         cout = op->out;
1382         ip->tpe = type;
1383         type = op->tpe;
1384         if (!type)
1385                 type = 1;
1386         ip->cpnd = cpend;
1387         cpend = op->cpnd;
1388         ip->sunqe = sunique;
1389         sunique = op->sunqe;
1390         ip->runqe = runique;
1391         runique = op->runqe;
1392         ip->mcse = mcase;
1393         mcase = op->mcse;
1394         ip->ntflg = ntflag;
1395         ntflag = op->ntflg;
1396         (void) strncpy(ip->nti, ntin, 16);
1397         (ip->nti)[strlen(ip->nti)] = '\0';
1398         (void) strcpy(ntin, op->nti);
1399         (void) strncpy(ip->nto, ntout, 16);
1400         (ip->nto)[strlen(ip->nto)] = '\0';
1401         (void) strcpy(ntout, op->nto);
1402         ip->mapflg = mapflag;
1403         mapflag = op->mapflg;
1404         (void) strncpy(ip->mi, mapin, MAXPATHLEN - 1);
1405         (ip->mi)[strlen(ip->mi)] = '\0';
1406         (void) strcpy(mapin, op->mi);
1407         (void) strncpy(ip->mo, mapout, MAXPATHLEN - 1);
1408         (ip->mo)[strlen(ip->mo)] = '\0';
1409         (void) strcpy(mapout, op->mo);
1410 //        (void) signal(SIGINT, oldintr);
1411         if (abrtflag) {
1412                 abrtflag = 0;
1413                 (*oldintr)(1);
1414         }
1415 }
1416
1417 jmp_buf ptabort;
1418 int ptabflg;
1419
1420 void
1421 abortpt()
1422 {
1423         printf("\n");
1424         (void) fflush(stdout);
1425         ptabflg++;
1426         mflag = 0;
1427         abrtflag = 0;
1428         longjmp(ptabort, 1);
1429 }
1430
1431 void proxtrans(cmd, local, remote)
1432         char *cmd, *local, *remote;
1433 {
1434 //      void (*oldintr)(int);
1435         //void abortpt(int);
1436         int tmptype, oldtype = 0, secndflag = 0, nfnd;
1437         extern jmp_buf ptabort;
1438         char *cmd2;
1439 //      struct
1440         fd_set mask;
1441
1442         if (strcmp(cmd, "RETR"))
1443                 cmd2 = "RETR";
1444         else
1445                 cmd2 = runique ? "STOU" : "STOR";
1446         if (command("PASV") != COMPLETE) {
1447                 printf("proxy server does not support third part transfers.\n");
1448                 (void) fflush(stdout);
1449                 return;
1450         }
1451         tmptype = type;
1452         pswitch(0);
1453         if (!connected) {
1454                 printf("No primary connection\n");
1455                 (void) fflush(stdout);
1456                 pswitch(1);
1457                 code = -1;
1458                 return;
1459         }
1460         if (type != tmptype) {
1461                 oldtype = type;
1462                 switch (tmptype) {
1463                         case TYPE_A:
1464                                 setascii();
1465                                 break;
1466                         case TYPE_I:
1467                                 setbinary();
1468                                 break;
1469                         case TYPE_E:
1470                                 setebcdic();
1471                                 break;
1472                         case TYPE_L:
1473                                 settenex();
1474                                 break;
1475                 }
1476         }
1477         if (command("PORT %s", pasv) != COMPLETE) {
1478                 switch (oldtype) {
1479                         case 0:
1480                                 break;
1481                         case TYPE_A:
1482                                 setascii();
1483                                 break;
1484                         case TYPE_I:
1485                                 setbinary();
1486                                 break;
1487                         case TYPE_E:
1488                                 setebcdic();
1489                                 break;
1490                         case TYPE_L:
1491                                 settenex();
1492                                 break;
1493                 }
1494                 pswitch(1);
1495                 return;
1496         }
1497         if (setjmp(ptabort))
1498                 goto abort;
1499 null();//       oldintr = signal(SIGINT, abortpt);
1500         if (command("%s %s", cmd, remote) != PRELIM) {
1501 null();//               (void) signal(SIGINT, oldintr);
1502                 switch (oldtype) {
1503                         case 0:
1504                                 break;
1505                         case TYPE_A:
1506                                 setascii();
1507                                 break;
1508                         case TYPE_I:
1509                                 setbinary();
1510                                 break;
1511                         case TYPE_E:
1512                                 setebcdic();
1513                                 break;
1514                         case TYPE_L:
1515                                 settenex();
1516                                 break;
1517                 }
1518                 pswitch(1);
1519                 return;
1520         }
1521         sleep(2);
1522         pswitch(1);
1523         secndflag++;
1524         if (command("%s %s", cmd2, local) != PRELIM)
1525                 goto abort;
1526         ptflag++;
1527         (void) getreply(0);
1528         pswitch(0);
1529         (void) getreply(0);
1530 null();//       (void) signal(SIGINT, oldintr);
1531         switch (oldtype) {
1532                 case 0:
1533                         break;
1534                 case TYPE_A:
1535                         setascii();
1536                         break;
1537                 case TYPE_I:
1538                         setbinary();
1539                         break;
1540                 case TYPE_E:
1541                         setebcdic();
1542                         break;
1543                 case TYPE_L:
1544                         settenex();
1545                         break;
1546         }
1547         pswitch(1);
1548         ptflag = 0;
1549         printf("local: %s remote: %s\n", local, remote);
1550         (void) fflush(stdout);
1551         return;
1552 abort:
1553 null();//       (void) signal(SIGINT, SIG_IGN);
1554         ptflag = 0;
1555         if (strcmp(cmd, "RETR") && !proxy)
1556                 pswitch(1);
1557         else if (!strcmp(cmd, "RETR") && proxy)
1558                 pswitch(0);
1559         if (!cpend && !secndflag) {  /* only here if cmd = "STOR" (proxy=1) */
1560                 if (command("%s %s", cmd2, local) != PRELIM) {
1561                         pswitch(0);
1562                         switch (oldtype) {
1563                                 case 0:
1564                                         break;
1565                                 case TYPE_A:
1566                                         setascii();
1567                                         break;
1568                                 case TYPE_I:
1569                                         setbinary();
1570                                         break;
1571                                 case TYPE_E:
1572                                         setebcdic();
1573                                         break;
1574                                 case TYPE_L:
1575                                         settenex();
1576                                         break;
1577                         }
1578                         if (cpend) {
1579                                 char msg[2];
1580
1581                                 fprintfSocket(cout,"%c%c",IAC,IP);
1582                                 *msg = (char) IAC;
1583                                 *(msg+1) = (char) DM;
1584                                 if (send(cout,msg,2,MSG_OOB) != 2)
1585                                         perror("abort");
1586                                 fprintfSocket(cout,"ABOR\r\n");
1587                                 FD_ZERO(&mask);
1588 //                              FD_SET(fileno(cin), &mask); // Chris: Need to correct this
1589                                 if ((nfnd = empty(&mask,10)) <= 0) {
1590                                         if (nfnd < 0) {
1591                                                 perror("abort");
1592                                         }
1593                                         if (ptabflg)
1594                                                 code = -1;
1595                                         lostpeer();
1596                                 }
1597                                 (void) getreply(0);
1598                                 (void) getreply(0);
1599                         }
1600                 }
1601                 pswitch(1);
1602                 if (ptabflg)
1603                         code = -1;
1604 null();//               (void) signal(SIGINT, oldintr);
1605                 return;
1606         }
1607         if (cpend) {
1608                 char msg[2];
1609
1610                 fprintfSocket(cout,"%c%c",IAC,IP);
1611                 *msg = (char)IAC;
1612                 *(msg+1) = (char)DM;
1613                 if (send(cout,msg,2,MSG_OOB) != 2)
1614                         perror("abort");
1615                 fprintfSocket(cout,"ABOR\r\n");
1616                 FD_ZERO(&mask);
1617 //              FD_SET(fileno(cin), &mask); // Chris: Need to correct this...
1618                 if ((nfnd = empty(&mask,10)) <= 0) {
1619                         if (nfnd < 0) {
1620                                 perror("abort");
1621                         }
1622                         if (ptabflg)
1623                                 code = -1;
1624                         lostpeer();
1625                 }
1626                 (void) getreply(0);
1627                 (void) getreply(0);
1628         }
1629         pswitch(!proxy);
1630         if (!cpend && !secndflag) {  /* only if cmd = "RETR" (proxy=1) */
1631                 if (command("%s %s", cmd2, local) != PRELIM) {
1632                         pswitch(0);
1633                         switch (oldtype) {
1634                                 case 0:
1635                                         break;
1636                                 case TYPE_A:
1637                                         setascii();
1638                                         break;
1639                                 case TYPE_I:
1640                                         setbinary();
1641                                         break;
1642                                 case TYPE_E:
1643                                         setebcdic();
1644                                         break;
1645                                 case TYPE_L:
1646                                         settenex();
1647                                         break;
1648                         }
1649                         if (cpend) {
1650                                 char msg[2];
1651
1652                                 fprintfSocket(cout,"%c%c",IAC,IP);
1653                                 *msg = (char)IAC;
1654                                 *(msg+1) = (char)DM;
1655                                 if (send(cout,msg,2,MSG_OOB) != 2)
1656                                         perror("abort");
1657                                 fprintfSocket(cout,"ABOR\r\n");
1658                                 FD_ZERO(&mask);
1659 //                              FD_SET(fileno(cin), &mask); // Chris:
1660                                 if ((nfnd = empty(&mask,10)) <= 0) {
1661                                         if (nfnd < 0) {
1662                                                 perror("abort");
1663                                         }
1664                                         if (ptabflg)
1665                                                 code = -1;
1666                                         lostpeer();
1667                                 }
1668                                 (void) getreply(0);
1669                                 (void) getreply(0);
1670                         }
1671                         pswitch(1);
1672                         if (ptabflg)
1673                                 code = -1;
1674 null();//                       (void) signal(SIGINT, oldintr);
1675                         return;
1676                 }
1677         }
1678         if (cpend) {
1679                 char msg[2];
1680
1681                 fprintfSocket(cout,"%c%c",IAC,IP);
1682                 *msg = (char)IAC;
1683                 *(msg+1) = (char)DM;
1684                 if (send(cout,msg,2,MSG_OOB) != 2)
1685                         perror("abort");
1686                 fprintfSocket(cout,"ABOR\r\n");
1687                 FD_ZERO(&mask);
1688 //              FD_SET(fileno(cin), &mask); // Chris:
1689                 if ((nfnd = empty(&mask,10)) <= 0) {
1690                         if (nfnd < 0) {
1691                                 perror("abort");
1692                         }
1693                         if (ptabflg)
1694                                 code = -1;
1695                         lostpeer();
1696                 }
1697                 (void) getreply(0);
1698                 (void) getreply(0);
1699         }
1700         pswitch(!proxy);
1701         if (cpend) {
1702                 FD_ZERO(&mask);
1703 //              FD_SET(fileno(cin), &mask); // Chris:
1704                 if ((nfnd = empty(&mask,10)) <= 0) {
1705                         if (nfnd < 0) {
1706                                 perror("abort");
1707                         }
1708                         if (ptabflg)
1709                                 code = -1;
1710                         lostpeer();
1711                 }
1712                 (void) getreply(0);
1713                 (void) getreply(0);
1714         }
1715         if (proxy)
1716                 pswitch(0);
1717         switch (oldtype) {
1718                 case 0:
1719                         break;
1720                 case TYPE_A:
1721                         setascii();
1722                         break;
1723                 case TYPE_I:
1724                         setbinary();
1725                         break;
1726                 case TYPE_E:
1727                         setebcdic();
1728                         break;
1729                 case TYPE_L:
1730                         settenex();
1731                         break;
1732         }
1733         pswitch(1);
1734         if (ptabflg)
1735                 code = -1;
1736 null();//       (void) signal(SIGINT, oldintr);
1737 }
1738
1739 void reset()
1740 {
1741 //      struct
1742         fd_set mask;
1743         int nfnd = 1;
1744
1745         FD_ZERO(&mask);
1746         while (nfnd > 0) {
1747 //              FD_SET(fileno(cin), &mask); // Chris
1748                 if ((nfnd = empty(&mask,0)) < 0) {
1749                         perror("reset");
1750                         code = -1;
1751                         lostpeer();
1752                 }
1753                 else if (nfnd) {
1754                         (void) getreply(0);
1755                 }
1756         }
1757 }
1758
1759 char *
1760 gunique(local)
1761         char *local;
1762 {
1763         static char new[MAXPATHLEN];
1764         char *cp = rindex(local, '/');
1765         int d, count=0;
1766         char ext = '1';
1767
1768         if (cp)
1769                 *cp = '\0';
1770         d = access(cp ? local : ".", 2);
1771         if (cp)
1772                 *cp = '/';
1773         if (d < 0) {
1774                 perror(local);
1775                 return((char *) 0);
1776         }
1777         (void) strcpy(new, local);
1778         cp = new + strlen(new);
1779         *cp++ = '.';
1780         while (!d) {
1781                 if (++count == 100) {
1782                         printf("runique: can't find unique file name.\n");
1783                         (void) fflush(stdout);
1784                         return((char *) 0);
1785                 }
1786                 *cp++ = ext;
1787                 *cp = '\0';
1788                 if (ext == '9')
1789                         ext = '0';
1790                 else
1791                         ext++;
1792                 if ((d = access(new, 0)) < 0)
1793                         break;
1794                 if (ext != '0')
1795                         cp--;
1796                 else if (*(cp - 2) == '.')
1797                         *(cp - 1) = '1';
1798                 else {
1799                         *(cp - 2) = *(cp - 2) + 1;
1800                         cp--;
1801                 }
1802         }
1803         return(new);
1804 }
1805
1806 int null(void)
1807 {
1808    return 0;
1809 }