base/applications/network/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 #ifndef _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(const char *mode);
 102
 103 int command(const 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 == INVALID_SOCKET) {
 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(const char *host)
 207 {
 208         char tmp[80];
 209         char *puser, *ppass, *pacct;
 210         const char *user, *pass, *acct;
 211         int n, aflag = 0;
 212
 213         user = pass = acct = 0;
 214         n = ruserpass(host, &puser, &ppass, &pacct);
 215         if (n < 0) {
 216                 code = -1;
 217                 return(0);
 218         }
 219         if (0 != n) {
 220                 user = puser;
 221                 pass = ppass;
 222                 acct = pacct;
 223         }
 224         while (user == NULL) {
 225                 const char *myname = "none"; // This needs to become the usename env
 226
 227                 if (myname)
 228                         printf("Name (%s:%s): ", host, myname);
 229                 else
 230                         printf("Name (%s): ", host);
 231                 (void) fflush(stdout);
 232                 (void) fgets(tmp, sizeof(tmp) - 1, stdin);
 233                 tmp[strlen(tmp) - 1] = '\0';
 234                 if (*tmp == '\0')
 235                         user = myname;
 236                 else
 237                         user = tmp;
 238         }
 239         n = command("USER %s", user);
 240         if (n == CONTINUE) {
 241                 if (pass == NULL)
 242                         pass = getpass("Password:");
 243                 n = command("PASS %s", pass);
 244                 fflush(stdin);
 245         }
 246         if (n == CONTINUE) {
 247                 aflag++;
 248                 acct = getpass("Account:");
 249                 n = command("ACCT %s", acct);
 250         }
 251         if (n != COMPLETE) {
 252                 fprintf(stderr, "Login failed.\n");
 253                 return (0);
 254         }
 255         if (!aflag && acct != NULL)
 256                 (void) command("ACCT %s", acct);
 257         if (proxy)
 258                 return(1);
 259         for (n = 0; n < macnum; ++n) {
 260                 if (!strcmp("init", macros[n].mac_name)) {
 261                         (void) strcpy(line, "$init");
 262                         makeargv();
 263                         domacro(margc, margv);
 264                         break;
 265                 }
 266         }
 267         return (1);
 268 }
 269
 270 static void
 271 cmdabort(int sig)
 272 {
 273         extern jmp_buf ptabort;
 274
 275         printf("\n");
 276         (void) fflush(stdout);
 277         abrtflag++;
 278         if (ptflag)
 279                 longjmp(ptabort,1);
 280 }
 281
 282 /*VARARGS1*/
 283 int command(const char *fmt, ...)
 284 {
 285         va_list ap;
 286         int r;
 287         void (*oldintr)(int);
 288
 289         abrtflag = 0;
 290         if (debug) {
 291                 printf("---> ");
 292                 va_start(ap, fmt);
 293                 vfprintf(stdout, fmt, ap);
 294                 va_end(ap);
 295                 printf("\n");
 296                 (void) fflush(stdout);
 297         }
 298         if (cout == 0) {
 299                 perror ("No control connection for command");
 300                 code = -1;
 301                 return (0);
 302         }
 303         oldintr = signal(SIGINT,cmdabort);
 304         {
 305                 char buffer[1024];
 306
 307                 va_start(ap, fmt);
 308                 vsprintf(buffer, fmt, ap);
 309                 va_end(ap);
 310 //DLJ: to work through  firewalls - send the command as a single message
 311                 strcat(buffer,"\r\n");
 312                 fprintfSocket(cout, buffer);
 313         }
 314 //DLJ: the following two lines are replaced by the strcat above - seems to
 315 // make it work through firewalls.
 316 //      fprintfSocket(cout, "\r\n");
 317 //      (void) fflush(cout);
 318         cpend = 1;
 319         r = getreply(!strcmp(fmt, "QUIT"));
 320         if (abrtflag && oldintr != SIG_IGN)
 321                 (*oldintr)(SIGINT);
 322 //      (void) signal(SIGINT, oldintr);
 323         return(r);
 324 }
 325
 326 char reply_string[BUFSIZ];              /* last line of previous reply */
 327
 328 #include <ctype.h>
 329
 330 int
 331 getreply(expecteof)
 332         int expecteof;
 333 {
 334         register int c, n;
 335         register int dig;
 336         register char *cp;
 337         int originalcode = 0, continuation = 0;
 338         void (*oldintr)(int);
 339         int pflag = 0;
 340         char *pt = pasv;
 341
 342         oldintr = signal(SIGINT,cmdabort);
 343         for (;;) {
 344                 dig = n = code = 0;
 345                 cp = reply_string;
 346                 while ((c = fgetcSocket(cin)) != '\n') {
 347                         if (c == IAC) {     /* handle telnet commands */
 348                                 switch (fgetcSocket(cin)) {
 349                                 case WILL:
 350                                 case WONT:
 351                                         c = fgetcSocket(cin);
 352                                         fprintfSocket(cout, "%c%c%c",IAC,DONT,c);
 353                                         break;
 354                                 case DO:
 355                                 case DONT:
 356                                         c = fgetcSocket(cin);
 357                                         fprintfSocket(cout, "%c%c%c",IAC,WONT,c);
 358                                         break;
 359                                 default:
 360                                         break;
 361                                 }
 362                                 continue;
 363                         }
 364                         dig++;
 365                         if (c == EOF) {
 366                                 if (expecteof) {
 367 //                                      (void) signal(SIGINT,oldintr);
 368                                         code = 221;
 369                                         return (0);
 370                                 }
 371                                 lostpeer();
 372                                 if (verbose) {
 373                                         printf("421 Service not available, remote server has closed connection\n");
 374                                         (void) fflush(stdout);
 375                                 }
 376                                 code = 421;
 377                                 return(4);
 378                         }
 379                         if (c != '\r' && (verbose > 0 ||
 380                             (verbose > -1 && n == '5' && dig > 4))) {
 381                                 if (proxflag &&
 382                                    ((dig == 1 || dig == 5) && verbose == 0))
 383                                         printf("%s:",hostname);
 384                                 (void) putchar(c);
 385                                 (void) fflush(stdout);
 386                         }
 387                         if (dig < 4 && isdigit(c))
 388                                 code = code * 10 + (c - '0');
 389                         if (!pflag && code == 227)
 390                                 pflag = 1;
 391                         if (dig > 4 && pflag == 1 && isdigit(c))
 392                                 pflag = 2;
 393                         if (pflag == 2) {
 394                                 if (c != '\r' && c != ')')
 395                                         *pt++ = c;
 396                                 else {
 397                                         *pt = '\0';
 398                                         pflag = 3;
 399                                 }
 400                         }
 401                         if (dig == 4 && c == '-') {
 402                                 if (continuation)
 403                                         code = 0;
 404                                 continuation++;
 405                         }
 406                         if (n == 0)
 407                                 n = c;
 408                         if (cp < &reply_string[sizeof(reply_string) - 1])
 409                                 *cp++ = c;
 410                 }
 411                 if (verbose > 0 || (verbose > -1 && n == '5')) {
 412                         (void) putchar(c);
 413                         (void) fflush (stdout);
 414                 }
 415                 if (continuation && code != originalcode) {
 416                         if (originalcode == 0)
 417                                 originalcode = code;
 418                         continue;
 419                 }
 420                 *cp = '\0';
 421                 if (n != '1')
 422                         cpend = 0;
 423                 (void) signal(SIGINT,oldintr);
 424                 if (code == 421 || originalcode == 421)
 425                         lostpeer();
 426                 if (abrtflag && oldintr != cmdabort && oldintr != SIG_IGN)
 427                         (*oldintr)(SIGINT);
 428                 return (n - '0');
 429         }
 430 }
 431
 432 static int
 433 empty(mask, sec)
 434         struct fd_set *mask;
 435         int sec;
 436 {
 437         struct timeval t;
 438
 439         t.tv_sec = (long) sec;
 440         t.tv_usec = 0;
 441         return(select(32, mask, (struct fd_set *) 0, (struct fd_set *) 0, &t));
 442 }
 443
 444 jmp_buf sendabort;
 445
 446 #if 0
 447 void abortsend()
 448 {
 449
 450         mflag = 0;
 451         abrtflag = 0;
 452         printf("\nsend aborted\n");
 453         (void) fflush(stdout);
 454         longjmp(sendabort, 1);
 455 }
 456 #endif
 457
 458 #define HASHBYTES 1024
 459
 460 void sendrequest(const char *cmd, const char *local, const char *remote, int printnames)
 461 {
 462         FILE *fin;
 463         int dout = 0;
 464         int (*closefunc)();
 465         sig_t (*oldintr)(), (*oldintp)();
 466         char buf[BUFSIZ], *bufp;
 467         long bytes = 0, hashbytes = HASHBYTES;
 468         register int c, d;
 469         struct stat st;
 470         struct timeval start, stop;
 471         const char *mode;
 472
 473         if (verbose && printnames) {
 474                 if (local && *local != '-')
 475                         printf("local: %s ", local);
 476                 if (remote)
 477                         printf("remote: %s\n", remote);
 478                 (void) fflush(stdout);
 479         }
 480         if (proxy) {
 481                 proxtrans(cmd, local, remote);
 482                 return;
 483         }
 484         closefunc = NULL;
 485         oldintr = NULL;
 486         oldintp = NULL;
 487         mode = "w";
 488         if (setjmp(sendabort)) {
 489                 while (cpend) {
 490                         (void) getreply(0);
 491                 }
 492                 if (data >= 0) {
 493                         (void) close(data);
 494                         data = -1;
 495                 }
 496                 if (oldintr)
 497 null();//                       (void) signal(SIGINT,oldintr);
 498                 if (oldintp)
 499 null();//                       (void) signal(SIGPIPE,oldintp);
 500                 code = -1;
 501                 return;
 502         }
 503 null();//       oldintr = signal(SIGINT, abortsend);
 504         if (strcmp(local, "-") == 0)
 505                 fin = stdin;
 506         else if (*local == '|') {
 507 null();//               oldintp = signal(SIGPIPE,SIG_IGN);
 508                 fin = _popen(local + 1, "r");
 509                 if (fin == NULL) {
 510                         perror(local + 1);
 511 null();//                       (void) signal(SIGINT, oldintr);
 512 null();//                       (void) signal(SIGPIPE, oldintp);
 513                         code = -1;
 514                         return;
 515                 }
 516                 closefunc = _pclose;
 517         } else {
 518                 fin = fopen(local, "r");
 519                 if (fin == NULL) {
 520                         perror(local);
 521 null();//                       (void) signal(SIGINT, oldintr);
 522                         code = -1;
 523                         return;
 524                 }
 525                 closefunc = fclose;
 526                 if (fstat(fileno(fin), &st) < 0 ||
 527                     (st.st_mode&S_IFMT) != S_IFREG) {
 528                         fprintf(stdout, "%s: not a plain file.\n", local);
 529                         (void) fflush(stdout);
 530 null();//                       (void) signal(SIGINT, oldintr);
 531                         fclose(fin);
 532                         code = -1;
 533                         return;
 534                 }
 535         }
 536         if (initconn()) {
 537 null();//               (void) signal(SIGINT, oldintr);
 538                 if (oldintp)
 539 null();//                       (void) signal(SIGPIPE, oldintp);
 540                 code = -1;
 541                 if (closefunc != NULL)
 542                         (*closefunc)(fin);
 543                 return;
 544         }
 545         if (setjmp(sendabort))
 546                 goto abort;
 547
 548         if (restart_point &&
 549             (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) {
 550                 if (fseek(fin, (long) restart_point, 0) < 0) {
 551                         perror(local);
 552                         restart_point = 0;
 553                         if (closefunc != NULL)
 554                                 (*closefunc)(fin);
 555                         return;
 556                 }
 557                 if (command("REST %ld", (long) restart_point)
 558                         != CONTINUE) {
 559                         restart_point = 0;
 560                         if (closefunc != NULL)
 561                                 (*closefunc)(fin);
 562                         return;
 563                 }
 564                 restart_point = 0;
 565                 mode = "r+w";
 566         }
 567         if (remote) {
 568                 if (command("%s %s", cmd, remote) != PRELIM) {
 569 null();//                       (void) signal(SIGINT, oldintr);
 570                         if (oldintp)
 571 null();//                               (void) signal(SIGPIPE, oldintp);
 572                         if (closefunc != NULL)
 573                                 (*closefunc)(fin);
 574                         return;
 575                 }
 576         } else
 577                 if (command("%s", cmd) != PRELIM) {
 578 null();//                       (void) signal(SIGINT, oldintr);
 579                         if (oldintp)
 580 null();//                               (void) signal(SIGPIPE, oldintp);
 581                         if (closefunc != NULL)
 582                                 (*closefunc)(fin);
 583                         return;
 584                 }
 585         dout = dataconn(mode);
 586         if (!dout)
 587                 goto abort;
 588         (void) gettimeofday(&start, (struct timezone *)0);
 589 null();//       oldintp = signal(SIGPIPE, SIG_IGN);
 590         switch (type) {
 591
 592         case TYPE_I:
 593         case TYPE_L:
 594                 errno = d = 0;
 595                 while ((c = read(fileno(fin), buf, sizeof (buf))) > 0) {
 596                         bytes += c;
 597                         for (bufp = buf; c > 0; c -= d, bufp += d)
 598                                 if ((d = send(dout, bufp, c, 0)) <= 0)
 599                                         break;
 600                         if (hash) {
 601                                 while (bytes >= hashbytes) {
 602                                         (void) putchar('#');
 603                                         hashbytes += HASHBYTES;
 604                                 }
 605                                 (void) fflush(stdout);
 606                         }
 607                 }
 608                 if (hash && bytes > 0) {
 609                         if (bytes < HASHBYTES)
 610                                 (void) putchar('#');
 611                         (void) putchar('\n');
 612                         (void) fflush(stdout);
 613                 }
 614                 if (c < 0)
 615                         perror(local);
 616                 if (d <= 0) {
 617                         if (d == 0)
 618                                 fprintf(stderr, "netout: write returned 0?\n");
 619                         else if (errno != EPIPE)
 620                                 perror("netout");
 621                         bytes = -1;
 622                 }
 623                 break;
 624
 625         case TYPE_A:
 626                 {
 627                 char buf[1024];
 628                 static int bufsize = 1024;
 629                 int ipos=0;
 630
 631                 while ((c = getc(fin)) != EOF) {
 632                         if (c == '\n') {
 633                                 while (hash && (bytes >= hashbytes)) {
 634                                         (void) putchar('#');
 635                                         (void) fflush(stdout);
 636                                         hashbytes += HASHBYTES;
 637                                 }
 638 // Szurgot: The following code is unncessary on Win32.
 639 //                              (void) fputcSocket(dout, '\r');
 640 //                              bytes++;
 641                         }
 642
 643                         if (ipos >= bufsize) {
 644                                 fputSocket(dout,buf,ipos);
 645                                 if(!hash) (void) putchar('.');
 646                                 ipos=0;
 647                         }
 648                         buf[ipos]=c; ++ipos;
 649                         bytes++;
 650                 }
 651                 if (ipos) {
 652                         fputSocket(dout,buf,ipos);
 653                         ipos=0;
 654                 }
 655                 if (hash) {
 656                         if (bytes < hashbytes)
 657                         (void) putchar('#');
 658                         (void) putchar('\n');
 659                         (void) fflush(stdout);
 660                 }
 661                 else {
 662                         (void) putchar('.');
 663                         (void) putchar('\n');
 664                         (void) fflush(stdout);
 665                 }
 666                 if (ferror(fin))
 667                         perror(local);
 668 //              if (ferror(dout)) {
 669 //                      if (errno != EPIPE)
 670 //                              perror("netout");
 671 //                      bytes = -1;
 672 //              }
 673                 break;
 674                 }
 675         }
 676         (void) gettimeofday(&stop, (struct timezone *)0);
 677         if (closefunc != NULL)
 678                 (*closefunc)(fin);
 679         if(closesocket(dout)) {
 680                 int iret=WSAGetLastError ();
 681                 fprintf(stdout,"Error closing socket(%d)\n",iret);
 682                 (void) fflush(stdout);
 683         }
 684         (void) getreply(0);
 685 null();//       (void) signal(SIGINT, oldintr);
 686         if (oldintp)
 687 null();//               (void) signal(SIGPIPE, oldintp);
 688         if (bytes > 0)
 689                 ptransfer("sent", bytes, &start, &stop);
 690         return;
 691 abort:
 692         (void) gettimeofday(&stop, (struct timezone *)0);
 693 null();//       (void) signal(SIGINT, oldintr);
 694         if (oldintp)
 695 null();//               (void) signal(SIGPIPE, oldintp);
 696         if (!cpend) {
 697                 code = -1;
 698                 return;
 699         }
 700         if (data >= 0) {
 701                 (void) close(data);
 702                 data = -1;
 703         }
 704         if (dout)
 705                 if(closesocket(dout)) {
 706                         int iret=WSAGetLastError ();
 707                         fprintf(stdout,"Error closing socket(%d)\n",iret);
 708                         (void) fflush(stdout);
 709                 }
 710
 711         (void) getreply(0);
 712         code = -1;
 713         if (closefunc != NULL && fin != NULL)
 714                 (*closefunc)(fin);
 715         if (bytes > 0)
 716                 ptransfer("sent", bytes, &start, &stop);
 717 }
 718
 719 jmp_buf recvabort;
 720
 721 #if 0
 722 void abortrecv()
 723 {
 724
 725         mflag = 0;
 726         abrtflag = 0;
 727         printf("\n");
 728         (void) fflush(stdout);
 729         longjmp(recvabort, 1);
 730 }
 731 #endif
 732
 733 void recvrequest(const char *cmd, const char *local, const char *remote, const char *mode,
 734                 int printnames)
 735 {
 736         FILE *fout = stdout;
 737         int din = 0;
 738         int (*closefunc)();
 739         void (*oldintr)(int), (*oldintp)(int);
 740         int oldverbose = 0, oldtype = 0, is_retr, tcrflag, nfnd, bare_lfs = 0;
 741         char msg;
 742 //      static char *buf; // Szurgot: Shouldn't this go SOMEWHERE?
 743         char buf[1024];
 744         static int bufsize = 1024;
 745         long bytes = 0, hashbytes = HASHBYTES;
 746 //      struct
 747                 fd_set mask;
 748         register int c;
 749         struct timeval start, stop;
 750 //      struct stat st;
 751
 752         is_retr = strcmp(cmd, "RETR") == 0;
 753         if (is_retr && verbose && printnames) {
 754                 if (local && *local != '-')
 755                         printf("local: %s ", local);
 756                 if (remote)
 757                         printf("remote: %s\n", remote);
 758                 (void) fflush(stdout);
 759         }
 760         if (proxy && is_retr) {
 761                 proxtrans(cmd, local, remote);
 762                 return;
 763         }
 764         closefunc = NULL;
 765         oldintr = NULL;
 766         oldintp = NULL;
 767         tcrflag = !crflag && is_retr;
 768         if (setjmp(recvabort)) {
 769                 while (cpend) {
 770                         (void) getreply(0);
 771                 }
 772                 if (data >= 0) {
 773                         (void) close(data);
 774                         data = -1;
 775                 }
 776                 if (oldintr)
 777 null();//                       (void) signal(SIGINT, oldintr);
 778                 code = -1;
 779                 return;
 780         }
 781 null();//       oldintr = signal(SIGINT, abortrecv);
 782         if (strcmp(local, "-") && *local != '|') {
 783 #ifndef _WIN32
 784         register int d;
 785 // This whole thing is a problem... access Won't work on non-existent files
 786                 if (access(local, 2) < 0) {
 787                         char *dir = rindex(local, '/');
 788
 789                         if (errno != ENOENT && errno != EACCES) {
 790                                 perror(local);
 791                                 (void) signal(SIGINT, oldintr);
 792                                 code = -1;
 793                                 return;
 794                         }
 795                         if (dir != NULL)
 796                                 *dir = 0;
 797                         d = access(dir ? local : ".", 2);
 798                         if (dir != NULL)
 799                                 *dir = '/';
 800                         if (d < 0) {
 801                                 perror(local);
 802                                 (void) signal(SIGINT, oldintr);
 803                                 code = -1;
 804                                 return;
 805                         }
 806                         if (!runique && errno == EACCES &&
 807                             chmod(local, 0600) < 0) {
 808                                 perror(local);
 809                                 (void) signal(SIGINT, oldintr);
 810                                 code = -1;
 811                                 return;
 812                         }
 813                         if (runique && errno == EACCES &&
 814                             (local = gunique(local)) == NULL) {
 815                                 (void) signal(SIGINT, oldintr);
 816                                 code = -1;
 817                                 return;
 818                         }
 819                 }
 820                 else if (runique && (local = gunique(local)) == NULL) {
 821                         (void) signal(SIGINT, oldintr);
 822                         code = -1;
 823                         return;
 824                 }
 825 #endif
 826         }
 827         if (initconn()) {
 828 null();//               (void) signal(SIGINT, oldintr);
 829                 code = -1;
 830                 return;
 831         }
 832         if (setjmp(recvabort))
 833                 goto abort;
 834         if (!is_retr) {
 835                 if (type != TYPE_A && (allbinary == 0 || type != TYPE_I)) {
 836                         oldtype = type;
 837                         oldverbose = verbose;
 838                         if (!debug)
 839                                 verbose = 0;
 840                         setascii();
 841                         verbose = oldverbose;
 842                 }
 843         } else if (restart_point) {
 844                 if (command("REST %ld", (long) restart_point) != CONTINUE)
 845                         return;
 846         }
 847         if (remote) {
 848                 if (command("%s %s", cmd, remote) != PRELIM) {
 849 null();//                       (void) signal(SIGINT, oldintr);
 850                         if (oldtype) {
 851                                 if (!debug)
 852                                         verbose = 0;
 853                                 switch (oldtype) {
 854                                         case TYPE_I:
 855                                                 setbinary();
 856                                                 break;
 857                                         case TYPE_E:
 858                                                 setebcdic();
 859                                                 break;
 860                                         case TYPE_L:
 861                                                 settenex();
 862                                                 break;
 863                                 }
 864                                 verbose = oldverbose;
 865                         }
 866                         return;
 867                 }
 868         } else {
 869                 if (command("%s", cmd) != PRELIM) {
 870 null();//                       (void) signal(SIGINT, oldintr);
 871                         if (oldtype) {
 872                                 if (!debug)
 873                                         verbose = 0;
 874                                 switch (oldtype) {
 875                                         case TYPE_I:
 876                                                 setbinary();
 877                                                 break;
 878                                         case TYPE_E:
 879                                                 setebcdic();
 880                                                 break;
 881                                         case TYPE_L:
 882                                                 settenex();
 883                                                 break;
 884                                 }
 885                                 verbose = oldverbose;
 886                         }
 887                         return;
 888                 }
 889         }
 890         din = dataconn("r");
 891         if (!din)
 892                 goto abort;
 893         if (strcmp(local, "-") == 0)
 894                 fout = stdout;
 895         else if (*local == '|') {
 896 null();//               oldintp = signal(SIGPIPE, SIG_IGN);
 897                 fout = _popen(local + 1, "w");
 898                 if (fout == NULL) {
 899                         perror(local+1);
 900                         goto abort;
 901                 }
 902                 closefunc = _pclose;
 903         } else {
 904                 fout = fopen(local, mode);
 905                 if (fout == NULL) {
 906                         perror(local);
 907                         goto abort;
 908                 }
 909                 closefunc = fclose;
 910         }
 911         (void) gettimeofday(&start, (struct timezone *)0);
 912         switch (type) {
 913
 914         case TYPE_I:
 915         case TYPE_L:
 916                 if (restart_point &&
 917                     lseek(fileno(fout), (long) restart_point, L_SET) < 0) {
 918                         perror(local);
 919                         if (closefunc != NULL)
 920                                 (*closefunc)(fout);
 921                         return;
 922                 }
 923                 errno = 0;
 924 //              while ((c = recv(din, buf, bufsize, 1)) > 0) {
 925 //                      if ((d = write(fileno(fout), buf, c)) != c)
 926 //                      if ((d = write(fileno(fout), buf, c)) != c)
 927 //                              break;
 928                 while ((c = recv(din, buf, bufsize, 0)) > 0) {
 929                         write(fileno(fout), buf, c);
 930                         bytes += c;
 931                         if (hash) {
 932                                 while (bytes >= hashbytes) {
 933                                         (void) putchar('#');
 934                                         hashbytes += HASHBYTES;
 935                                 }
 936                                 (void) fflush(stdout);
 937                         }
 938                 }
 939                 if (hash && bytes > 0) {
 940                         if (bytes < HASHBYTES)
 941                                 (void) putchar('#');
 942                         (void) putchar('\n');
 943                         (void) fflush(stdout);
 944                 }
 945 //              if (c < 0) {
 946 //                      if (errno != EPIPE)
 947 //                              perror("netin");
 948 //                      bytes = -1;
 949 //              }
 950 //              if (d < c) {
 951 //                      if (d < 0)
 952 //                              perror(local);
 953 //                      else
 954 //                              fprintf(stderr, "%s: short write\n", local);
 955 //              }
 956                 break;
 957
 958         case TYPE_A:
 959                 if (restart_point) {
 960                         register int i, n, c;
 961
 962                         if (fseek(fout, 0L, L_SET) < 0)
 963                                 goto done;
 964                         n = restart_point;
 965                         i = 0;
 966                         while (i++ < n) {
 967                                 if ((c=getc(fout)) == EOF)
 968                                         goto done;
 969                                 if (c == '\n')
 970                                         i++;
 971                         }
 972                         if (fseek(fout, 0L, L_INCR) < 0) {
 973 done:
 974                                 perror(local);
 975                                 if (closefunc != NULL)
 976                                         (*closefunc)(fout);
 977                                 return;
 978                         }
 979                 }
 980                 while ((c = fgetcSocket(din)) != EOF) {
 981                         if (c == '\n')
 982                                 bare_lfs++;
 983                         while (c == '\r') {
 984                                 while (hash && (bytes >= hashbytes)) {
 985                                         (void) putchar('#');
 986                                         (void) fflush(stdout);
 987                                         hashbytes += HASHBYTES;
 988                                 }
 989                                 bytes++;
 990                                 if ((c = fgetcSocket(din)) != '\n' || tcrflag) {
 991                                         if (ferror(fout))
 992                                         goto break2;
 993                                         (void) putc('\r', fout);
 994                                         if (c == '\0') {
 995                                                 bytes++;
 996                                                 goto contin2;
 997                                         }
 998                                         if (c == EOF)
 999                                                 goto contin2;
1000                                 }
1001                         }
1002                         (void) putc(c, fout);
1003                         bytes++;
1004         contin2:        ;
1005                 }
1006 break2:
1007                 if (bare_lfs) {
1008                         printf("WARNING! %d bare linefeeds received in ASCII mode\n", bare_lfs);
1009                         printf("File may not have transferred correctly.\n");
1010                         (void) fflush(stdout);
1011                 }
1012                 if (hash) {
1013                         if (bytes < hashbytes)
1014                                 (void) putchar('#');
1015                         (void) putchar('\n');
1016                         (void) fflush(stdout);
1017                 }
1018 //              if (ferror(din)) {
1019 //                      if (errno != EPIPE)
1020 //                              perror("netin");
1021 //                      bytes = -1;
1022 //              }
1023                 if (ferror(fout))
1024                         perror(local);
1025                 break;
1026         }
1027         if (closefunc != NULL)
1028                 (*closefunc)(fout);
1029 null();//       (void) signal(SIGINT, oldintr);
1030         if (oldintp)
1031 null();//               (void) signal(SIGPIPE, oldintp);
1032         (void) gettimeofday(&stop, (struct timezone *)0);
1033         if(closesocket(din)) {
1034                 int iret=WSAGetLastError ();
1035                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1036                 (void) fflush(stdout);
1037         }
1038
1039         (void) getreply(0);
1040         if (bytes > 0 && is_retr)
1041                 ptransfer("received", bytes, &start, &stop);
1042         if (oldtype) {
1043                 if (!debug)
1044                         verbose = 0;
1045                 switch (oldtype) {
1046                         case TYPE_I:
1047                                 setbinary();
1048                                 break;
1049                         case TYPE_E:
1050                                 setebcdic();
1051                                 break;
1052                         case TYPE_L:
1053                                 settenex();
1054                                 break;
1055                 }
1056                 verbose = oldverbose;
1057         }
1058         return;
1059 abort:
1060
1061 /* abort using RFC959 recommended IP,SYNC sequence  */
1062
1063         (void) gettimeofday(&stop, (struct timezone *)0);
1064         if (oldintp)
1065 null();//               (void) signal(SIGPIPE, oldintr);
1066 null();//       (void) signal(SIGINT,SIG_IGN);
1067         if (oldtype) {
1068                 if (!debug)
1069                         verbose = 0;
1070                 switch (oldtype) {
1071                         case TYPE_I:
1072                                 setbinary();
1073                                 break;
1074                         case TYPE_E:
1075                                 setebcdic();
1076                                 break;
1077                         case TYPE_L:
1078                                 settenex();
1079                                 break;
1080                 }
1081                 verbose = oldverbose;
1082         }
1083         if (!cpend) {
1084                 code = -1;
1085 null();//               (void) signal(SIGINT,oldintr);
1086                 return;
1087         }
1088
1089         fprintfSocket(cout,"%c%c",IAC,IP);
1090         msg = (char)IAC;
1091 /* send IAC in urgent mode instead of DM because UNIX places oob mark */
1092 /* after urgent byte rather than before as now is protocol */
1093         if (send(cout,&msg,1,MSG_OOB) != 1) {
1094                 perror("abort");
1095         }
1096         fprintfSocket(cout,"%cABOR\r\n",DM);
1097         FD_ZERO(&mask);
1098         FD_SET(cin, &mask); // Need to correct this
1099         if (din) {
1100                 FD_SET(din, &mask); // Need to correct this
1101         }
1102         if ((nfnd = empty(&mask,10)) <= 0) {
1103                 if (nfnd < 0) {
1104                         perror("abort");
1105                 }
1106                 code = -1;
1107                 lostpeer();
1108         }
1109         if (din && FD_ISSET(din, &mask)) {
1110                 while (recv(din, buf, bufsize, 0) > 0)
1111                         ;
1112         }
1113         if (getreply(0) == ERROR && code == 552) { /* needed for nic style abort */
1114                 if (data >= 0) {
1115                         (void) close(data);
1116                         data = -1;
1117                 }
1118                 (void) getreply(0);
1119         }
1120         (void) getreply(0);
1121         code = -1;
1122         if (data >= 0) {
1123                 (void) close(data);
1124                 data = -1;
1125         }
1126         if (closefunc != NULL && fout != NULL)
1127                 (*closefunc)(fout);
1128         if (din)
1129                 if(closesocket(din)) {
1130                         int iret=WSAGetLastError ();
1131                         fprintf(stdout,"Error closing socket(%d)\n",iret);
1132                         (void) fflush(stdout);
1133                 }
1134
1135         if (bytes > 0)
1136                 ptransfer("received", bytes, &start, &stop);
1137 null();//       (void) signal(SIGINT,oldintr);
1138 }
1139
1140 int
1141 initconn()
1142 {
1143         register char *p, *a;
1144         int result, len, tmpno = 0;
1145         int on = 1;
1146         int a0, a1, a2, a3, p0, p1;
1147
1148
1149         if (passivemode) {
1150                 data = socket(AF_INET, SOCK_STREAM, 0);
1151                 if (data < 0) {
1152                         perror("ftp: socket");
1153                         return(1);
1154                 }
1155                 if ((options & SO_DEBUG) &&
1156                     setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1157                     sizeof (on)) < 0)
1158                         perror("ftp: setsockopt (ignored)");
1159                 if (command("PASV") != COMPLETE) {
1160                         printf("Passive mode refused.\n");
1161                         goto bad;
1162                 }
1163
1164                 /*
1165                  * What we've got at this point is a string of comma
1166                  * separated one-byte unsigned integer values.
1167                  * The first four are the an IP address. The fifth is
1168                  * the MSB of the port number, the sixth is the LSB.
1169                  * From that we'll prepare a sockaddr_in.
1170                  */
1171
1172                 if (sscanf(pasv,"%d,%d,%d,%d,%d,%d",
1173                     &a0, &a1, &a2, &a3, &p0, &p1) != 6) {
1174                         printf("Passive mode address scan failure. Shouldn't happen!\n");
1175                         goto bad;
1176                 }
1177
1178                 bzero(&data_addr, sizeof(data_addr));
1179                 data_addr.sin_family = AF_INET;
1180                 a = (char *)&data_addr.sin_addr.s_addr;
1181                 a[0] = a0 & 0xff;
1182                 a[1] = a1 & 0xff;
1183                 a[2] = a2 & 0xff;
1184                 a[3] = a3 & 0xff;
1185                 p = (char *)&data_addr.sin_port;
1186                 p[0] = p0 & 0xff;
1187                 p[1] = p1 & 0xff;
1188
1189                 if (connect(data, (struct sockaddr *)&data_addr,
1190                     sizeof(data_addr)) < 0) {
1191                         perror("ftp: connect");
1192                         goto bad;
1193                 }
1194                 return(0);
1195         }
1196
1197
1198 noport:
1199         data_addr = myctladdr;
1200         if (sendport)
1201                 data_addr.sin_port = 0; /* let system pick one */
1202         if (data != -1)
1203                 (void) close (data);
1204         data = socket(AF_INET, SOCK_STREAM, 0);
1205         if (data < 0) {
1206                 perror("ftp: socket");
1207                 if (tmpno)
1208                         sendport = 1;
1209                 return (1);
1210         }
1211         if (!sendport)
1212                 if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) {
1213                         perror("ftp: setsockopt (reuse address)");
1214                         goto bad;
1215                 }
1216         if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) {
1217                 perror("ftp: bind");
1218                 goto bad;
1219         }
1220         if (options & SO_DEBUG &&
1221             setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0)
1222                 perror("ftp: setsockopt (ignored)");
1223         len = sizeof (data_addr);
1224         if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
1225                 perror("ftp: getsockname");
1226                 goto bad;
1227         }
1228         if (listen(data, 1) < 0)
1229                 perror("ftp: listen");
1230         if (sendport) {
1231                 a = (char *)&data_addr.sin_addr;
1232                 p = (char *)&data_addr.sin_port;
1233 #define UC(b)   (((int)b)&0xff)
1234                 result =
1235                     command("PORT %d,%d,%d,%d,%d,%d",
1236                       UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1237                       UC(p[0]), UC(p[1]));
1238                 if (result == ERROR && sendport == -1) {
1239                         sendport = 0;
1240                         tmpno = 1;
1241                         goto noport;
1242                 }
1243                 return (result != COMPLETE);
1244         }
1245         if (tmpno)
1246                 sendport = 1;
1247         return (0);
1248 bad:
1249         (void) fflush(stdout);
1250         (void) close(data), data = -1;
1251         if (tmpno)
1252                 sendport = 1;
1253         return (1);
1254 }
1255
1256 int dataconn(const char *mode)
1257 {
1258         struct sockaddr_in from;
1259         int s, fromlen = sizeof (from);
1260
1261         if (passivemode)
1262                 return (data);
1263
1264         s = accept(data, (struct sockaddr *) &from, &fromlen);
1265         if (s < 0) {
1266                 perror("ftp: accept");
1267                 (void) closesocket(data), data = -1;
1268                 return 0;
1269         }
1270         if(closesocket(data)) {
1271                 int iret=WSAGetLastError ();
1272                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1273                 (void) fflush(stdout);
1274         }
1275
1276         data = s;
1277         return (data);
1278 }
1279
1280 void ptransfer(direction, bytes, t0, t1)
1281         const char *direction;
1282         long bytes;
1283         struct timeval *t0, *t1;
1284 {
1285         struct timeval td;
1286         double s, bs;
1287
1288         if (verbose) {
1289                 tvsub(&td, t1, t0);
1290                 s = td.tv_sec + (td.tv_usec / 1000000.);
1291 #define nz(x)   ((x) == 0 ? 1 : (x))
1292                 bs = bytes / nz(s);
1293                 printf("%ld bytes %s in %.1f seconds (%.0f Kbytes/s)\n",
1294                     bytes, direction, s, bs / 1024.);
1295                 (void) fflush(stdout);
1296         }
1297 }
1298
1299 /*tvadd(tsum, t0)
1300         struct timeval *tsum, *t0;
1301 {
1302
1303         tsum->tv_sec += t0->tv_sec;
1304         tsum->tv_usec += t0->tv_usec;
1305         if (tsum->tv_usec > 1000000)
1306                 tsum->tv_sec++, tsum->tv_usec -= 1000000;
1307 } */
1308
1309 void tvsub(tdiff, t1, t0)
1310         struct timeval *tdiff, *t1, *t0;
1311 {
1312
1313         tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
1314         tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
1315         if (tdiff->tv_usec < 0)
1316                 tdiff->tv_sec--, tdiff->tv_usec += 1000000;
1317 }
1318
1319 void psabort(int flag)
1320 {
1321         extern int abrtflag;
1322
1323         abrtflag++;
1324 }
1325
1326 void pswitch(int flag)
1327 {
1328         extern int proxy, abrtflag;
1329         Sig_t oldintr;
1330         static struct comvars {
1331                 int connect;
1332                 char name[MAXHOSTNAMELEN];
1333                 struct sockaddr_in mctl;
1334                 struct sockaddr_in hctl;
1335                 SOCKET in;
1336                 SOCKET out;
1337                 int tpe;
1338                 int cpnd;
1339                 int sunqe;
1340                 int runqe;
1341                 int mcse;
1342                 int ntflg;
1343                 char nti[17];
1344                 char nto[17];
1345                 int mapflg;
1346                 char mi[MAXPATHLEN];
1347                 char mo[MAXPATHLEN];
1348                 } proxstruct, tmpstruct;
1349         struct comvars *ip, *op;
1350
1351         abrtflag = 0;
1352         oldintr = signal(SIGINT, psabort);
1353         if (flag) {
1354                 if (proxy)
1355                         return;
1356                 ip = &tmpstruct;
1357                 op = &proxstruct;
1358                 proxy++;
1359         }
1360         else {
1361                 if (!proxy)
1362                         return;
1363                 ip = &proxstruct;
1364                 op = &tmpstruct;
1365                 proxy = 0;
1366         }
1367         ip->connect = connected;
1368         connected = op->connect;
1369         if (hostname) {
1370                 (void) strncpy(ip->name, hostname, sizeof(ip->name) - 1);
1371                 ip->name[strlen(ip->name)] = '\0';
1372         } else
1373                 ip->name[0] = 0;
1374         hostname = op->name;
1375         ip->hctl = hisctladdr;
1376         hisctladdr = op->hctl;
1377         ip->mctl = myctladdr;
1378         myctladdr = op->mctl;
1379         ip->in = cin;
1380         cin = op->in;
1381         ip->out = cout;
1382         cout = op->out;
1383         ip->tpe = type;
1384         type = op->tpe;
1385         if (!type)
1386                 type = 1;
1387         ip->cpnd = cpend;
1388         cpend = op->cpnd;
1389         ip->sunqe = sunique;
1390         sunique = op->sunqe;
1391         ip->runqe = runique;
1392         runique = op->runqe;
1393         ip->mcse = mcase;
1394         mcase = op->mcse;
1395         ip->ntflg = ntflag;
1396         ntflag = op->ntflg;
1397         (void) strncpy(ip->nti, ntin, 16);
1398         (ip->nti)[strlen(ip->nti)] = '\0';
1399         (void) strcpy(ntin, op->nti);
1400         (void) strncpy(ip->nto, ntout, 16);
1401         (ip->nto)[strlen(ip->nto)] = '\0';
1402         (void) strcpy(ntout, op->nto);
1403         ip->mapflg = mapflag;
1404         mapflag = op->mapflg;
1405         (void) strncpy(ip->mi, mapin, MAXPATHLEN - 1);
1406         (ip->mi)[strlen(ip->mi)] = '\0';
1407         (void) strcpy(mapin, op->mi);
1408         (void) strncpy(ip->mo, mapout, MAXPATHLEN - 1);
1409         (ip->mo)[strlen(ip->mo)] = '\0';
1410         (void) strcpy(mapout, op->mo);
1411 //      (void) signal(SIGINT, oldintr);
1412         if (abrtflag) {
1413                 abrtflag = 0;
1414                 (*oldintr)(1);
1415         }
1416 }
1417
1418 jmp_buf ptabort;
1419 int ptabflg;
1420
1421 #if 0
1422 void
1423 abortpt()
1424 {
1425         printf("\n");
1426         (void) fflush(stdout);
1427         ptabflg++;
1428         mflag = 0;
1429         abrtflag = 0;
1430         longjmp(ptabort, 1);
1431 }
1432 #endif
1433
1434 void proxtrans(cmd, local, remote)
1435         const char *cmd, *local, *remote;
1436 {
1437 //      void (*oldintr)(int);
1438         int tmptype, oldtype = 0, secndflag = 0, nfnd;
1439         extern jmp_buf ptabort;
1440         const char *cmd2;
1441 //      struct
1442         fd_set mask;
1443
1444         if (strcmp(cmd, "RETR"))
1445                 cmd2 = "RETR";
1446         else
1447                 cmd2 = runique ? "STOU" : "STOR";
1448         if (command("PASV") != COMPLETE) {
1449                 printf("proxy server does not support third part transfers.\n");
1450                 (void) fflush(stdout);
1451                 return;
1452         }
1453         tmptype = type;
1454         pswitch(0);
1455         if (!connected) {
1456                 printf("No primary connection\n");
1457                 (void) fflush(stdout);
1458                 pswitch(1);
1459                 code = -1;
1460                 return;
1461         }
1462         if (type != tmptype) {
1463                 oldtype = type;
1464                 switch (tmptype) {
1465                         case TYPE_A:
1466                                 setascii();
1467                                 break;
1468                         case TYPE_I:
1469                                 setbinary();
1470                                 break;
1471                         case TYPE_E:
1472                                 setebcdic();
1473                                 break;
1474                         case TYPE_L:
1475                                 settenex();
1476                                 break;
1477                 }
1478         }
1479         if (command("PORT %s", pasv) != COMPLETE) {
1480                 switch (oldtype) {
1481                         case 0:
1482                                 break;
1483                         case TYPE_A:
1484                                 setascii();
1485                                 break;
1486                         case TYPE_I:
1487                                 setbinary();
1488                                 break;
1489                         case TYPE_E:
1490                                 setebcdic();
1491                                 break;
1492                         case TYPE_L:
1493                                 settenex();
1494                                 break;
1495                 }
1496                 pswitch(1);
1497                 return;
1498         }
1499         if (setjmp(ptabort))
1500                 goto abort;
1501 null();//       oldintr = signal(SIGINT, abortpt);
1502         if (command("%s %s", cmd, remote) != PRELIM) {
1503 null();//               (void) signal(SIGINT, oldintr);
1504                 switch (oldtype) {
1505                         case 0:
1506                                 break;
1507                         case TYPE_A:
1508                                 setascii();
1509                                 break;
1510                         case TYPE_I:
1511                                 setbinary();
1512                                 break;
1513                         case TYPE_E:
1514                                 setebcdic();
1515                                 break;
1516                         case TYPE_L:
1517                                 settenex();
1518                                 break;
1519                 }
1520                 pswitch(1);
1521                 return;
1522         }
1523         sleep(2);
1524         pswitch(1);
1525         secndflag++;
1526         if (command("%s %s", cmd2, local) != PRELIM)
1527                 goto abort;
1528         ptflag++;
1529         (void) getreply(0);
1530         pswitch(0);
1531         (void) getreply(0);
1532 null();//       (void) signal(SIGINT, oldintr);
1533         switch (oldtype) {
1534                 case 0:
1535                         break;
1536                 case TYPE_A:
1537                         setascii();
1538                         break;
1539                 case TYPE_I:
1540                         setbinary();
1541                         break;
1542                 case TYPE_E:
1543                         setebcdic();
1544                         break;
1545                 case TYPE_L:
1546                         settenex();
1547                         break;
1548         }
1549         pswitch(1);
1550         ptflag = 0;
1551         printf("local: %s remote: %s\n", local, remote);
1552         (void) fflush(stdout);
1553         return;
1554 abort:
1555 null();//       (void) signal(SIGINT, SIG_IGN);
1556         ptflag = 0;
1557         if (strcmp(cmd, "RETR") && !proxy)
1558                 pswitch(1);
1559         else if (!strcmp(cmd, "RETR") && proxy)
1560                 pswitch(0);
1561         if (!cpend && !secndflag) {  /* only here if cmd = "STOR" (proxy=1) */
1562                 if (command("%s %s", cmd2, local) != PRELIM) {
1563                         pswitch(0);
1564                         switch (oldtype) {
1565                                 case 0:
1566                                         break;
1567                                 case TYPE_A:
1568                                         setascii();
1569                                         break;
1570                                 case TYPE_I:
1571                                         setbinary();
1572                                         break;
1573                                 case TYPE_E:
1574                                         setebcdic();
1575                                         break;
1576                                 case TYPE_L:
1577                                         settenex();
1578                                         break;
1579                         }
1580                         if (cpend) {
1581                                 char msg[2];
1582
1583                                 fprintfSocket(cout,"%c%c",IAC,IP);
1584                                 *msg = (char) IAC;
1585                                 *(msg+1) = (char) DM;
1586                                 if (send(cout,msg,2,MSG_OOB) != 2)
1587                                         perror("abort");
1588                                 fprintfSocket(cout,"ABOR\r\n");
1589                                 FD_ZERO(&mask);
1590 //                              FD_SET(fileno(cin), &mask); // Chris: Need to correct this
1591                                 if ((nfnd = empty(&mask,10)) <= 0) {
1592                                         if (nfnd < 0) {
1593                                                 perror("abort");
1594                                         }
1595                                         if (ptabflg)
1596                                                 code = -1;
1597                                         lostpeer();
1598                                 }
1599                                 (void) getreply(0);
1600                                 (void) getreply(0);
1601                         }
1602                 }
1603                 pswitch(1);
1604                 if (ptabflg)
1605                         code = -1;
1606 null();//               (void) signal(SIGINT, oldintr);
1607                 return;
1608         }
1609         if (cpend) {
1610                 char msg[2];
1611
1612                 fprintfSocket(cout,"%c%c",IAC,IP);
1613                 *msg = (char)IAC;
1614                 *(msg+1) = (char)DM;
1615                 if (send(cout,msg,2,MSG_OOB) != 2)
1616                         perror("abort");
1617                 fprintfSocket(cout,"ABOR\r\n");
1618                 FD_ZERO(&mask);
1619 //              FD_SET(fileno(cin), &mask); // Chris: Need to correct this...
1620                 if ((nfnd = empty(&mask,10)) <= 0) {
1621                         if (nfnd < 0) {
1622                                 perror("abort");
1623                         }
1624                         if (ptabflg)
1625                                 code = -1;
1626                         lostpeer();
1627                 }
1628                 (void) getreply(0);
1629                 (void) getreply(0);
1630         }
1631         pswitch(!proxy);
1632         if (!cpend && !secndflag) {  /* only if cmd = "RETR" (proxy=1) */
1633                 if (command("%s %s", cmd2, local) != PRELIM) {
1634                         pswitch(0);
1635                         switch (oldtype) {
1636                                 case 0:
1637                                         break;
1638                                 case TYPE_A:
1639                                         setascii();
1640                                         break;
1641                                 case TYPE_I:
1642                                         setbinary();
1643                                         break;
1644                                 case TYPE_E:
1645                                         setebcdic();
1646                                         break;
1647                                 case TYPE_L:
1648                                         settenex();
1649                                         break;
1650                         }
1651                         if (cpend) {
1652                                 char msg[2];
1653
1654                                 fprintfSocket(cout,"%c%c",IAC,IP);
1655                                 *msg = (char)IAC;
1656                                 *(msg+1) = (char)DM;
1657                                 if (send(cout,msg,2,MSG_OOB) != 2)
1658                                         perror("abort");
1659                                 fprintfSocket(cout,"ABOR\r\n");
1660                                 FD_ZERO(&mask);
1661 //                              FD_SET(fileno(cin), &mask); // Chris:
1662                                 if ((nfnd = empty(&mask,10)) <= 0) {
1663                                         if (nfnd < 0) {
1664                                                 perror("abort");
1665                                         }
1666                                         if (ptabflg)
1667                                                 code = -1;
1668                                         lostpeer();
1669                                 }
1670                                 (void) getreply(0);
1671                                 (void) getreply(0);
1672                         }
1673                         pswitch(1);
1674                         if (ptabflg)
1675                                 code = -1;
1676 null();//                       (void) signal(SIGINT, oldintr);
1677                         return;
1678                 }
1679         }
1680         if (cpend) {
1681                 char msg[2];
1682
1683                 fprintfSocket(cout,"%c%c",IAC,IP);
1684                 *msg = (char)IAC;
1685                 *(msg+1) = (char)DM;
1686                 if (send(cout,msg,2,MSG_OOB) != 2)
1687                         perror("abort");
1688                 fprintfSocket(cout,"ABOR\r\n");
1689                 FD_ZERO(&mask);
1690 //              FD_SET(fileno(cin), &mask); // Chris:
1691                 if ((nfnd = empty(&mask,10)) <= 0) {
1692                         if (nfnd < 0) {
1693                                 perror("abort");
1694                         }
1695                         if (ptabflg)
1696                                 code = -1;
1697                         lostpeer();
1698                 }
1699                 (void) getreply(0);
1700                 (void) getreply(0);
1701         }
1702         pswitch(!proxy);
1703         if (cpend) {
1704                 FD_ZERO(&mask);
1705 //              FD_SET(fileno(cin), &mask); // Chris:
1706                 if ((nfnd = empty(&mask,10)) <= 0) {
1707                         if (nfnd < 0) {
1708                                 perror("abort");
1709                         }
1710                         if (ptabflg)
1711                                 code = -1;
1712                         lostpeer();
1713                 }
1714                 (void) getreply(0);
1715                 (void) getreply(0);
1716         }
1717         if (proxy)
1718                 pswitch(0);
1719         switch (oldtype) {
1720                 case 0:
1721                         break;
1722                 case TYPE_A:
1723                         setascii();
1724                         break;
1725                 case TYPE_I:
1726                         setbinary();
1727                         break;
1728                 case TYPE_E:
1729                         setebcdic();
1730                         break;
1731                 case TYPE_L:
1732                         settenex();
1733                         break;
1734         }
1735         pswitch(1);
1736         if (ptabflg)
1737                 code = -1;
1738 null();//       (void) signal(SIGINT, oldintr);
1739 }
1740
1741 void reset()
1742 {
1743 //      struct
1744         fd_set mask;
1745         int nfnd = 1;
1746
1747         FD_ZERO(&mask);
1748         while (nfnd > 0) {
1749 //              FD_SET(fileno(cin), &mask); // Chris
1750                 if ((nfnd = empty(&mask,0)) < 0) {
1751                         perror("reset");
1752                         code = -1;
1753                         lostpeer();
1754                 }
1755                 else if (nfnd) {
1756                         (void) getreply(0);
1757                 }
1758         }
1759 }
1760
1761 #if 0
1762 char *
1763 gunique(local)
1764         char *local;
1765 {
1766         static char new[MAXPATHLEN];
1767         char *cp = rindex(local, '/');
1768         int d, count=0;
1769         char ext = '1';
1770
1771         if (cp)
1772                 *cp = '\0';
1773         d = access(cp ? local : ".", 2);
1774         if (cp)
1775                 *cp = '/';
1776         if (d < 0) {
1777                 perror(local);
1778                 return((char *) 0);
1779         }
1780         (void) strcpy(new, local);
1781         cp = new + strlen(new);
1782         *cp++ = '.';
1783         while (!d) {
1784                 if (++count == 100) {
1785                         printf("runique: can't find unique file name.\n");
1786                         (void) fflush(stdout);
1787                         return((char *) 0);
1788                 }
1789                 *cp++ = ext;
1790                 *cp = '\0';
1791                 if (ext == '9')
1792                         ext = '0';
1793                 else
1794                         ext++;
1795                 if ((d = access(new, 0)) < 0)
1796                         break;
1797                 if (ext != '0')
1798                         cp--;
1799                 else if (*(cp - 2) == '.')
1800                         *(cp - 1) = '1';
1801                 else {
1802                         *(cp - 2) = *(cp - 2) + 1;
1803                         cp--;
1804                 }
1805         }
1806         return(new);
1807 }
1808 #endif
1809
1810 int null(void)
1811 {
1812         return 0;
1813 }