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