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 (c = 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, d;
 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 // This whole thing is a problem... access Won't work on non-existent files
 785                 if (access(local, 2) < 0) {
 786                         char *dir = rindex(local, '/');
 787
 788                         if (errno != ENOENT && errno != EACCES) {
 789                                 perror(local);
 790                                 (void) signal(SIGINT, oldintr);
 791                                 code = -1;
 792                                 return;
 793                         }
 794                         if (dir != NULL)
 795                                 *dir = 0;
 796                         d = access(dir ? local : ".", 2);
 797                         if (dir != NULL)
 798                                 *dir = '/';
 799                         if (d < 0) {
 800                                 perror(local);
 801                                 (void) signal(SIGINT, oldintr);
 802                                 code = -1;
 803                                 return;
 804                         }
 805                         if (!runique && errno == EACCES &&
 806                             chmod(local, 0600) < 0) {
 807                                 perror(local);
 808                                 (void) signal(SIGINT, oldintr);
 809                                 code = -1;
 810                                 return;
 811                         }
 812                         if (runique && errno == EACCES &&
 813                             (local = gunique(local)) == NULL) {
 814                                 (void) signal(SIGINT, oldintr);
 815                                 code = -1;
 816                                 return;
 817                         }
 818                 }
 819                 else if (runique && (local = gunique(local)) == NULL) {
 820                         (void) signal(SIGINT, oldintr);
 821                         code = -1;
 822                         return;
 823                 }
 824 #endif
 825         }
 826         if (initconn()) {
 827 null();//               (void) signal(SIGINT, oldintr);
 828                 code = -1;
 829                 return;
 830         }
 831         if (setjmp(recvabort))
 832                 goto abort;
 833         if (!is_retr) {
 834                 if (type != TYPE_A && (allbinary == 0 || type != TYPE_I)) {
 835                         oldtype = type;
 836                         oldverbose = verbose;
 837                         if (!debug)
 838                                 verbose = 0;
 839                         setascii();
 840                         verbose = oldverbose;
 841                 }
 842         } else if (restart_point) {
 843                 if (command("REST %ld", (long) restart_point) != CONTINUE)
 844                         return;
 845         }
 846         if (remote) {
 847                 if (command("%s %s", cmd, remote) != PRELIM) {
 848 null();//                       (void) signal(SIGINT, oldintr);
 849                         if (oldtype) {
 850                                 if (!debug)
 851                                         verbose = 0;
 852                                 switch (oldtype) {
 853                                         case TYPE_I:
 854                                                 setbinary();
 855                                                 break;
 856                                         case TYPE_E:
 857                                                 setebcdic();
 858                                                 break;
 859                                         case TYPE_L:
 860                                                 settenex();
 861                                                 break;
 862                                 }
 863                                 verbose = oldverbose;
 864                         }
 865                         return;
 866                 }
 867         } else {
 868                 if (command("%s", cmd) != PRELIM) {
 869 null();//                       (void) signal(SIGINT, oldintr);
 870                         if (oldtype) {
 871                                 if (!debug)
 872                                         verbose = 0;
 873                                 switch (oldtype) {
 874                                         case TYPE_I:
 875                                                 setbinary();
 876                                                 break;
 877                                         case TYPE_E:
 878                                                 setebcdic();
 879                                                 break;
 880                                         case TYPE_L:
 881                                                 settenex();
 882                                                 break;
 883                                 }
 884                                 verbose = oldverbose;
 885                         }
 886                         return;
 887                 }
 888         }
 889         din = dataconn("r");
 890         if (!din)
 891                 goto abort;
 892         if (strcmp(local, "-") == 0)
 893                 fout = stdout;
 894         else if (*local == '|') {
 895 null();//               oldintp = signal(SIGPIPE, SIG_IGN);
 896                 fout = _popen(local + 1, "w");
 897                 if (fout == NULL) {
 898                         perror(local+1);
 899                         goto abort;
 900                 }
 901                 closefunc = _pclose;
 902         } else {
 903                 fout = fopen(local, mode);
 904                 if (fout == NULL) {
 905                         perror(local);
 906                         goto abort;
 907                 }
 908                 closefunc = fclose;
 909         }
 910         (void) gettimeofday(&start, (struct timezone *)0);
 911         switch (type) {
 912
 913         case TYPE_I:
 914         case TYPE_L:
 915                 if (restart_point &&
 916                     lseek(fileno(fout), (long) restart_point, L_SET) < 0) {
 917                         perror(local);
 918                         if (closefunc != NULL)
 919                                 (*closefunc)(fout);
 920                         return;
 921                 }
 922                 errno = d = 0;
 923 //              while ((c = recv(din, buf, bufsize, 1)) > 0) {
 924 //                      if ((d = write(fileno(fout), buf, c)) != c)
 925 //                      if ((d = write(fileno(fout), buf, c)) != c)
 926 //                              break;
 927                 while ((c = recv(din, buf, bufsize, 0)) > 0) {
 928                         write(fileno(fout), buf, c);
 929                         bytes += c;
 930                         if (hash) {
 931                                 while (bytes >= hashbytes) {
 932                                         (void) putchar('#');
 933                                         hashbytes += HASHBYTES;
 934                                 }
 935                                 (void) fflush(stdout);
 936                         }
 937                 }
 938                 if (hash && bytes > 0) {
 939                         if (bytes < HASHBYTES)
 940                                 (void) putchar('#');
 941                         (void) putchar('\n');
 942                         (void) fflush(stdout);
 943                 }
 944 //              if (c < 0) {
 945 //                      if (errno != EPIPE)
 946 //                              perror("netin");
 947 //                      bytes = -1;
 948 //              }
 949 //              if (d < c) {
 950 //                      if (d < 0)
 951 //                              perror(local);
 952 //                      else
 953 //                              fprintf(stderr, "%s: short write\n", local);
 954 //              }
 955                 break;
 956
 957         case TYPE_A:
 958                 if (restart_point) {
 959                         register int i, n, c;
 960
 961                         if (fseek(fout, 0L, L_SET) < 0)
 962                                 goto done;
 963                         n = restart_point;
 964                         i = 0;
 965                         while (i++ < n) {
 966                                 if ((c=getc(fout)) == EOF)
 967                                         goto done;
 968                                 if (c == '\n')
 969                                         i++;
 970                         }
 971                         if (fseek(fout, 0L, L_INCR) < 0) {
 972 done:
 973                                 perror(local);
 974                                 if (closefunc != NULL)
 975                                         (*closefunc)(fout);
 976                                 return;
 977                         }
 978                 }
 979                 while ((c = fgetcSocket(din)) != EOF) {
 980                         if (c == '\n')
 981                                 bare_lfs++;
 982                         while (c == '\r') {
 983                                 while (hash && (bytes >= hashbytes)) {
 984                                         (void) putchar('#');
 985                                         (void) fflush(stdout);
 986                                         hashbytes += HASHBYTES;
 987                                 }
 988                                 bytes++;
 989                                 if ((c = fgetcSocket(din)) != '\n' || tcrflag) {
 990                                         if (ferror(fout))
 991                                         goto break2;
 992                                         (void) putc('\r', fout);
 993                                         if (c == '\0') {
 994                                                 bytes++;
 995                                                 goto contin2;
 996                                         }
 997                                         if (c == EOF)
 998                                                 goto contin2;
 999                                 }
1000                         }
1001                         (void) putc(c, fout);
1002                         bytes++;
1003         contin2:        ;
1004                 }
1005 break2:
1006                 if (bare_lfs) {
1007                         printf("WARNING! %d bare linefeeds received in ASCII mode\n", bare_lfs);
1008                         printf("File may not have transferred correctly.\n");
1009                         (void) fflush(stdout);
1010                 }
1011                 if (hash) {
1012                         if (bytes < hashbytes)
1013                                 (void) putchar('#');
1014                         (void) putchar('\n');
1015                         (void) fflush(stdout);
1016                 }
1017 //              if (ferror(din)) {
1018 //                      if (errno != EPIPE)
1019 //                              perror("netin");
1020 //                      bytes = -1;
1021 //              }
1022                 if (ferror(fout))
1023                         perror(local);
1024                 break;
1025         }
1026         if (closefunc != NULL)
1027                 (*closefunc)(fout);
1028 null();//       (void) signal(SIGINT, oldintr);
1029         if (oldintp)
1030 null();//               (void) signal(SIGPIPE, oldintp);
1031         (void) gettimeofday(&stop, (struct timezone *)0);
1032         if(closesocket(din)) {
1033                 int iret=WSAGetLastError ();
1034                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1035                 (void) fflush(stdout);
1036         }
1037
1038         (void) getreply(0);
1039         if (bytes > 0 && is_retr)
1040                 ptransfer("received", bytes, &start, &stop);
1041         if (oldtype) {
1042                 if (!debug)
1043                         verbose = 0;
1044                 switch (oldtype) {
1045                         case TYPE_I:
1046                                 setbinary();
1047                                 break;
1048                         case TYPE_E:
1049                                 setebcdic();
1050                                 break;
1051                         case TYPE_L:
1052                                 settenex();
1053                                 break;
1054                 }
1055                 verbose = oldverbose;
1056         }
1057         return;
1058 abort:
1059
1060 /* abort using RFC959 recommended IP,SYNC sequence  */
1061
1062         (void) gettimeofday(&stop, (struct timezone *)0);
1063         if (oldintp)
1064 null();//               (void) signal(SIGPIPE, oldintr);
1065 null();//       (void) signal(SIGINT,SIG_IGN);
1066         if (oldtype) {
1067                 if (!debug)
1068                         verbose = 0;
1069                 switch (oldtype) {
1070                         case TYPE_I:
1071                                 setbinary();
1072                                 break;
1073                         case TYPE_E:
1074                                 setebcdic();
1075                                 break;
1076                         case TYPE_L:
1077                                 settenex();
1078                                 break;
1079                 }
1080                 verbose = oldverbose;
1081         }
1082         if (!cpend) {
1083                 code = -1;
1084 null();//               (void) signal(SIGINT,oldintr);
1085                 return;
1086         }
1087
1088         fprintfSocket(cout,"%c%c",IAC,IP);
1089         msg = (char)IAC;
1090 /* send IAC in urgent mode instead of DM because UNIX places oob mark */
1091 /* after urgent byte rather than before as now is protocol */
1092         if (send(cout,&msg,1,MSG_OOB) != 1) {
1093                 perror("abort");
1094         }
1095         fprintfSocket(cout,"%cABOR\r\n",DM);
1096         FD_ZERO(&mask);
1097         FD_SET(cin, &mask); // Need to correct this
1098         if (din) {
1099                 FD_SET(din, &mask); // Need to correct this
1100         }
1101         if ((nfnd = empty(&mask,10)) <= 0) {
1102                 if (nfnd < 0) {
1103                         perror("abort");
1104                 }
1105                 code = -1;
1106                 lostpeer();
1107         }
1108         if (din && FD_ISSET(din, &mask)) {
1109                 while ((c = recv(din, buf, bufsize, 0)) > 0)
1110                         ;
1111         }
1112         if ((c = getreply(0)) == ERROR && code == 552) { /* needed for nic style abort */
1113                 if (data >= 0) {
1114                         (void) close(data);
1115                         data = -1;
1116                 }
1117                 (void) getreply(0);
1118         }
1119         (void) getreply(0);
1120         code = -1;
1121         if (data >= 0) {
1122                 (void) close(data);
1123                 data = -1;
1124         }
1125         if (closefunc != NULL && fout != NULL)
1126                 (*closefunc)(fout);
1127         if (din)
1128                 if(closesocket(din)) {
1129                         int iret=WSAGetLastError ();
1130                         fprintf(stdout,"Error closing socket(%d)\n",iret);
1131                         (void) fflush(stdout);
1132                 }
1133
1134         if (bytes > 0)
1135                 ptransfer("received", bytes, &start, &stop);
1136 null();//       (void) signal(SIGINT,oldintr);
1137 }
1138
1139 int
1140 initconn()
1141 {
1142         register char *p, *a;
1143         int result, len, tmpno = 0;
1144         int on = 1;
1145         int a0, a1, a2, a3, p0, p1;
1146
1147
1148         if (passivemode) {
1149                 data = socket(AF_INET, SOCK_STREAM, 0);
1150                 if (data < 0) {
1151                         perror("ftp: socket");
1152                         return(1);
1153                 }
1154                 if ((options & SO_DEBUG) &&
1155                     setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on,
1156                     sizeof (on)) < 0)
1157                         perror("ftp: setsockopt (ignored)");
1158                 if (command("PASV") != COMPLETE) {
1159                         printf("Passive mode refused.\n");
1160                         goto bad;
1161                 }
1162
1163                 /*
1164                  * What we've got at this point is a string of comma
1165                  * separated one-byte unsigned integer values.
1166                  * The first four are the an IP address. The fifth is
1167                  * the MSB of the port number, the sixth is the LSB.
1168                  * From that we'll prepare a sockaddr_in.
1169                  */
1170
1171                 if (sscanf(pasv,"%d,%d,%d,%d,%d,%d",
1172                     &a0, &a1, &a2, &a3, &p0, &p1) != 6) {
1173                         printf("Passive mode address scan failure. Shouldn't happen!\n");
1174                         goto bad;
1175                 }
1176
1177                 bzero(&data_addr, sizeof(data_addr));
1178                 data_addr.sin_family = AF_INET;
1179                 a = (char *)&data_addr.sin_addr.s_addr;
1180                 a[0] = a0 & 0xff;
1181                 a[1] = a1 & 0xff;
1182                 a[2] = a2 & 0xff;
1183                 a[3] = a3 & 0xff;
1184                 p = (char *)&data_addr.sin_port;
1185                 p[0] = p0 & 0xff;
1186                 p[1] = p1 & 0xff;
1187
1188                 if (connect(data, (struct sockaddr *)&data_addr,
1189                     sizeof(data_addr)) < 0) {
1190                         perror("ftp: connect");
1191                         goto bad;
1192                 }
1193                 return(0);
1194         }
1195
1196
1197 noport:
1198         data_addr = myctladdr;
1199         if (sendport)
1200                 data_addr.sin_port = 0; /* let system pick one */
1201         if (data != -1)
1202                 (void) close (data);
1203         data = socket(AF_INET, SOCK_STREAM, 0);
1204         if (data < 0) {
1205                 perror("ftp: socket");
1206                 if (tmpno)
1207                         sendport = 1;
1208                 return (1);
1209         }
1210         if (!sendport)
1211                 if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)) < 0) {
1212                         perror("ftp: setsockopt (reuse address)");
1213                         goto bad;
1214                 }
1215         if (bind(data, (struct sockaddr *)&data_addr, sizeof (data_addr)) < 0) {
1216                 perror("ftp: bind");
1217                 goto bad;
1218         }
1219         if (options & SO_DEBUG &&
1220             setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, sizeof (on)) < 0)
1221                 perror("ftp: setsockopt (ignored)");
1222         len = sizeof (data_addr);
1223         if (getsockname(data, (struct sockaddr *)&data_addr, &len) < 0) {
1224                 perror("ftp: getsockname");
1225                 goto bad;
1226         }
1227         if (listen(data, 1) < 0)
1228                 perror("ftp: listen");
1229         if (sendport) {
1230                 a = (char *)&data_addr.sin_addr;
1231                 p = (char *)&data_addr.sin_port;
1232 #define UC(b)   (((int)b)&0xff)
1233                 result =
1234                     command("PORT %d,%d,%d,%d,%d,%d",
1235                       UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]),
1236                       UC(p[0]), UC(p[1]));
1237                 if (result == ERROR && sendport == -1) {
1238                         sendport = 0;
1239                         tmpno = 1;
1240                         goto noport;
1241                 }
1242                 return (result != COMPLETE);
1243         }
1244         if (tmpno)
1245                 sendport = 1;
1246         return (0);
1247 bad:
1248         (void) fflush(stdout);
1249         (void) close(data), data = -1;
1250         if (tmpno)
1251                 sendport = 1;
1252         return (1);
1253 }
1254
1255 int dataconn(const char *mode)
1256 {
1257         struct sockaddr_in from;
1258         int s, fromlen = sizeof (from);
1259
1260         if (passivemode)
1261                 return (data);
1262
1263         s = accept(data, (struct sockaddr *) &from, &fromlen);
1264         if (s < 0) {
1265                 perror("ftp: accept");
1266                 (void) closesocket(data), data = -1;
1267                 return 0;
1268         }
1269         if(closesocket(data)) {
1270                 int iret=WSAGetLastError ();
1271                 fprintf(stdout,"Error closing socket(%d)\n",iret);
1272                 (void) fflush(stdout);
1273         }
1274
1275         data = s;
1276         return (data);
1277 }
1278
1279 void ptransfer(direction, bytes, t0, t1)
1280         const char *direction;
1281         long bytes;
1282         struct timeval *t0, *t1;
1283 {
1284         struct timeval td;
1285         double s, bs;
1286
1287         if (verbose) {
1288                 tvsub(&td, t1, t0);
1289                 s = td.tv_sec + (td.tv_usec / 1000000.);
1290 #define nz(x)   ((x) == 0 ? 1 : (x))
1291                 bs = bytes / nz(s);
1292                 printf("%ld bytes %s in %.1f seconds (%.0f Kbytes/s)\n",
1293                     bytes, direction, s, bs / 1024.);
1294                 (void) fflush(stdout);
1295         }
1296 }
1297
1298 /*tvadd(tsum, t0)
1299         struct timeval *tsum, *t0;
1300 {
1301
1302         tsum->tv_sec += t0->tv_sec;
1303         tsum->tv_usec += t0->tv_usec;
1304         if (tsum->tv_usec > 1000000)
1305                 tsum->tv_sec++, tsum->tv_usec -= 1000000;
1306 } */
1307
1308 void tvsub(tdiff, t1, t0)
1309         struct timeval *tdiff, *t1, *t0;
1310 {
1311
1312         tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
1313         tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
1314         if (tdiff->tv_usec < 0)
1315                 tdiff->tv_sec--, tdiff->tv_usec += 1000000;
1316 }
1317
1318 void psabort(int flag)
1319 {
1320         extern int abrtflag;
1321
1322         abrtflag++;
1323 }
1324
1325 void pswitch(int flag)
1326 {
1327         extern int proxy, abrtflag;
1328         Sig_t oldintr;
1329         static struct comvars {
1330                 int connect;
1331                 char name[MAXHOSTNAMELEN];
1332                 struct sockaddr_in mctl;
1333                 struct sockaddr_in hctl;
1334                 SOCKET in;
1335                 SOCKET out;
1336                 int tpe;
1337                 int cpnd;
1338                 int sunqe;
1339                 int runqe;
1340                 int mcse;
1341                 int ntflg;
1342                 char nti[17];
1343                 char nto[17];
1344                 int mapflg;
1345                 char mi[MAXPATHLEN];
1346                 char mo[MAXPATHLEN];
1347                 } proxstruct, tmpstruct;
1348         struct comvars *ip, *op;
1349
1350         abrtflag = 0;
1351         oldintr = signal(SIGINT, psabort);
1352         if (flag) {
1353                 if (proxy)
1354                         return;
1355                 ip = &tmpstruct;
1356                 op = &proxstruct;
1357                 proxy++;
1358         }
1359         else {
1360                 if (!proxy)
1361                         return;
1362                 ip = &proxstruct;
1363                 op = &tmpstruct;
1364                 proxy = 0;
1365         }
1366         ip->connect = connected;
1367         connected = op->connect;
1368         if (hostname) {
1369                 (void) strncpy(ip->name, hostname, sizeof(ip->name) - 1);
1370                 ip->name[strlen(ip->name)] = '\0';
1371         } else
1372                 ip->name[0] = 0;
1373         hostname = op->name;
1374         ip->hctl = hisctladdr;
1375         hisctladdr = op->hctl;
1376         ip->mctl = myctladdr;
1377         myctladdr = op->mctl;
1378         ip->in = cin;
1379         cin = op->in;
1380         ip->out = cout;
1381         cout = op->out;
1382         ip->tpe = type;
1383         type = op->tpe;
1384         if (!type)
1385                 type = 1;
1386         ip->cpnd = cpend;
1387         cpend = op->cpnd;
1388         ip->sunqe = sunique;
1389         sunique = op->sunqe;
1390         ip->runqe = runique;
1391         runique = op->runqe;
1392         ip->mcse = mcase;
1393         mcase = op->mcse;
1394         ip->ntflg = ntflag;
1395         ntflag = op->ntflg;
1396         (void) strncpy(ip->nti, ntin, 16);
1397         (ip->nti)[strlen(ip->nti)] = '\0';
1398         (void) strcpy(ntin, op->nti);
1399         (void) strncpy(ip->nto, ntout, 16);
1400         (ip->nto)[strlen(ip->nto)] = '\0';
1401         (void) strcpy(ntout, op->nto);
1402         ip->mapflg = mapflag;
1403         mapflag = op->mapflg;
1404         (void) strncpy(ip->mi, mapin, MAXPATHLEN - 1);
1405         (ip->mi)[strlen(ip->mi)] = '\0';
1406         (void) strcpy(mapin, op->mi);
1407         (void) strncpy(ip->mo, mapout, MAXPATHLEN - 1);
1408         (ip->mo)[strlen(ip->mo)] = '\0';
1409         (void) strcpy(mapout, op->mo);
1410 //      (void) signal(SIGINT, oldintr);
1411         if (abrtflag) {
1412                 abrtflag = 0;
1413                 (*oldintr)(1);
1414         }
1415 }
1416
1417 jmp_buf ptabort;
1418 int ptabflg;
1419
1420 #if 0
1421 void
1422 abortpt()
1423 {
1424         printf("\n");
1425         (void) fflush(stdout);
1426         ptabflg++;
1427         mflag = 0;
1428         abrtflag = 0;
1429         longjmp(ptabort, 1);
1430 }
1431 #endif
1432
1433 void proxtrans(cmd, local, remote)
1434         const char *cmd, *local, *remote;
1435 {
1436 //      void (*oldintr)(int);
1437         int tmptype, oldtype = 0, secndflag = 0, nfnd;
1438         extern jmp_buf ptabort;
1439         const char *cmd2;
1440 //      struct
1441         fd_set mask;
1442
1443         if (strcmp(cmd, "RETR"))
1444                 cmd2 = "RETR";
1445         else
1446                 cmd2 = runique ? "STOU" : "STOR";
1447         if (command("PASV") != COMPLETE) {
1448                 printf("proxy server does not support third part transfers.\n");
1449                 (void) fflush(stdout);
1450                 return;
1451         }
1452         tmptype = type;
1453         pswitch(0);
1454         if (!connected) {
1455                 printf("No primary connection\n");
1456                 (void) fflush(stdout);
1457                 pswitch(1);
1458                 code = -1;
1459                 return;
1460         }
1461         if (type != tmptype) {
1462                 oldtype = type;
1463                 switch (tmptype) {
1464                         case TYPE_A:
1465                                 setascii();
1466                                 break;
1467                         case TYPE_I:
1468                                 setbinary();
1469                                 break;
1470                         case TYPE_E:
1471                                 setebcdic();
1472                                 break;
1473                         case TYPE_L:
1474                                 settenex();
1475                                 break;
1476                 }
1477         }
1478         if (command("PORT %s", pasv) != COMPLETE) {
1479                 switch (oldtype) {
1480                         case 0:
1481                                 break;
1482                         case TYPE_A:
1483                                 setascii();
1484                                 break;
1485                         case TYPE_I:
1486                                 setbinary();
1487                                 break;
1488                         case TYPE_E:
1489                                 setebcdic();
1490                                 break;
1491                         case TYPE_L:
1492                                 settenex();
1493                                 break;
1494                 }
1495                 pswitch(1);
1496                 return;
1497         }
1498         if (setjmp(ptabort))
1499                 goto abort;
1500 null();//       oldintr = signal(SIGINT, abortpt);
1501         if (command("%s %s", cmd, remote) != PRELIM) {
1502 null();//               (void) signal(SIGINT, oldintr);
1503                 switch (oldtype) {
1504                         case 0:
1505                                 break;
1506                         case TYPE_A:
1507                                 setascii();
1508                                 break;
1509                         case TYPE_I:
1510                                 setbinary();
1511                                 break;
1512                         case TYPE_E:
1513                                 setebcdic();
1514                                 break;
1515                         case TYPE_L:
1516                                 settenex();
1517                                 break;
1518                 }
1519                 pswitch(1);
1520                 return;
1521         }
1522         sleep(2);
1523         pswitch(1);
1524         secndflag++;
1525         if (command("%s %s", cmd2, local) != PRELIM)
1526                 goto abort;
1527         ptflag++;
1528         (void) getreply(0);
1529         pswitch(0);
1530         (void) getreply(0);
1531 null();//       (void) signal(SIGINT, oldintr);
1532         switch (oldtype) {
1533                 case 0:
1534                         break;
1535                 case TYPE_A:
1536                         setascii();
1537                         break;
1538                 case TYPE_I:
1539                         setbinary();
1540                         break;
1541                 case TYPE_E:
1542                         setebcdic();
1543                         break;
1544                 case TYPE_L:
1545                         settenex();
1546                         break;
1547         }
1548         pswitch(1);
1549         ptflag = 0;
1550         printf("local: %s remote: %s\n", local, remote);
1551         (void) fflush(stdout);
1552         return;
1553 abort:
1554 null();//       (void) signal(SIGINT, SIG_IGN);
1555         ptflag = 0;
1556         if (strcmp(cmd, "RETR") && !proxy)
1557                 pswitch(1);
1558         else if (!strcmp(cmd, "RETR") && proxy)
1559                 pswitch(0);
1560         if (!cpend && !secndflag) {  /* only here if cmd = "STOR" (proxy=1) */
1561                 if (command("%s %s", cmd2, local) != PRELIM) {
1562                         pswitch(0);
1563                         switch (oldtype) {
1564                                 case 0:
1565                                         break;
1566                                 case TYPE_A:
1567                                         setascii();
1568                                         break;
1569                                 case TYPE_I:
1570                                         setbinary();
1571                                         break;
1572                                 case TYPE_E:
1573                                         setebcdic();
1574                                         break;
1575                                 case TYPE_L:
1576                                         settenex();
1577                                         break;
1578                         }
1579                         if (cpend) {
1580                                 char msg[2];
1581
1582                                 fprintfSocket(cout,"%c%c",IAC,IP);
1583                                 *msg = (char) IAC;
1584                                 *(msg+1) = (char) DM;
1585                                 if (send(cout,msg,2,MSG_OOB) != 2)
1586                                         perror("abort");
1587                                 fprintfSocket(cout,"ABOR\r\n");
1588                                 FD_ZERO(&mask);
1589 //                              FD_SET(fileno(cin), &mask); // Chris: Need to correct this
1590                                 if ((nfnd = empty(&mask,10)) <= 0) {
1591                                         if (nfnd < 0) {
1592                                                 perror("abort");
1593                                         }
1594                                         if (ptabflg)
1595                                                 code = -1;
1596                                         lostpeer();
1597                                 }
1598                                 (void) getreply(0);
1599                                 (void) getreply(0);
1600                         }
1601                 }
1602                 pswitch(1);
1603                 if (ptabflg)
1604                         code = -1;
1605 null();//               (void) signal(SIGINT, oldintr);
1606                 return;
1607         }
1608         if (cpend) {
1609                 char msg[2];
1610
1611                 fprintfSocket(cout,"%c%c",IAC,IP);
1612                 *msg = (char)IAC;
1613                 *(msg+1) = (char)DM;
1614                 if (send(cout,msg,2,MSG_OOB) != 2)
1615                         perror("abort");
1616                 fprintfSocket(cout,"ABOR\r\n");
1617                 FD_ZERO(&mask);
1618 //              FD_SET(fileno(cin), &mask); // Chris: Need to correct this...
1619                 if ((nfnd = empty(&mask,10)) <= 0) {
1620                         if (nfnd < 0) {
1621                                 perror("abort");
1622                         }
1623                         if (ptabflg)
1624                                 code = -1;
1625                         lostpeer();
1626                 }
1627                 (void) getreply(0);
1628                 (void) getreply(0);
1629         }
1630         pswitch(!proxy);
1631         if (!cpend && !secndflag) {  /* only if cmd = "RETR" (proxy=1) */
1632                 if (command("%s %s", cmd2, local) != PRELIM) {
1633                         pswitch(0);
1634                         switch (oldtype) {
1635                                 case 0:
1636                                         break;
1637                                 case TYPE_A:
1638                                         setascii();
1639                                         break;
1640                                 case TYPE_I:
1641                                         setbinary();
1642                                         break;
1643                                 case TYPE_E:
1644                                         setebcdic();
1645                                         break;
1646                                 case TYPE_L:
1647                                         settenex();
1648                                         break;
1649                         }
1650                         if (cpend) {
1651                                 char msg[2];
1652
1653                                 fprintfSocket(cout,"%c%c",IAC,IP);
1654                                 *msg = (char)IAC;
1655                                 *(msg+1) = (char)DM;
1656                                 if (send(cout,msg,2,MSG_OOB) != 2)
1657                                         perror("abort");
1658                                 fprintfSocket(cout,"ABOR\r\n");
1659                                 FD_ZERO(&mask);
1660 //                              FD_SET(fileno(cin), &mask); // Chris:
1661                                 if ((nfnd = empty(&mask,10)) <= 0) {
1662                                         if (nfnd < 0) {
1663                                                 perror("abort");
1664                                         }
1665                                         if (ptabflg)
1666                                                 code = -1;
1667                                         lostpeer();
1668                                 }
1669                                 (void) getreply(0);
1670                                 (void) getreply(0);
1671                         }
1672                         pswitch(1);
1673                         if (ptabflg)
1674                                 code = -1;
1675 null();//                       (void) signal(SIGINT, oldintr);
1676                         return;
1677                 }
1678         }
1679         if (cpend) {
1680                 char msg[2];
1681
1682                 fprintfSocket(cout,"%c%c",IAC,IP);
1683                 *msg = (char)IAC;
1684                 *(msg+1) = (char)DM;
1685                 if (send(cout,msg,2,MSG_OOB) != 2)
1686                         perror("abort");
1687                 fprintfSocket(cout,"ABOR\r\n");
1688                 FD_ZERO(&mask);
1689 //              FD_SET(fileno(cin), &mask); // Chris:
1690                 if ((nfnd = empty(&mask,10)) <= 0) {
1691                         if (nfnd < 0) {
1692                                 perror("abort");
1693                         }
1694                         if (ptabflg)
1695                                 code = -1;
1696                         lostpeer();
1697                 }
1698                 (void) getreply(0);
1699                 (void) getreply(0);
1700         }
1701         pswitch(!proxy);
1702         if (cpend) {
1703                 FD_ZERO(&mask);
1704 //              FD_SET(fileno(cin), &mask); // Chris:
1705                 if ((nfnd = empty(&mask,10)) <= 0) {
1706                         if (nfnd < 0) {
1707                                 perror("abort");
1708                         }
1709                         if (ptabflg)
1710                                 code = -1;
1711                         lostpeer();
1712                 }
1713                 (void) getreply(0);
1714                 (void) getreply(0);
1715         }
1716         if (proxy)
1717                 pswitch(0);
1718         switch (oldtype) {
1719                 case 0:
1720                         break;
1721                 case TYPE_A:
1722                         setascii();
1723                         break;
1724                 case TYPE_I:
1725                         setbinary();
1726                         break;
1727                 case TYPE_E:
1728                         setebcdic();
1729                         break;
1730                 case TYPE_L:
1731                         settenex();
1732                         break;
1733         }
1734         pswitch(1);
1735         if (ptabflg)
1736                 code = -1;
1737 null();//       (void) signal(SIGINT, oldintr);
1738 }
1739
1740 void reset()
1741 {
1742 //      struct
1743         fd_set mask;
1744         int nfnd = 1;
1745
1746         FD_ZERO(&mask);
1747         while (nfnd > 0) {
1748 //              FD_SET(fileno(cin), &mask); // Chris
1749                 if ((nfnd = empty(&mask,0)) < 0) {
1750                         perror("reset");
1751                         code = -1;
1752                         lostpeer();
1753                 }
1754                 else if (nfnd) {
1755                         (void) getreply(0);
1756                 }
1757         }
1758 }
1759
1760 #if 0
1761 char *
1762 gunique(local)
1763         char *local;
1764 {
1765         static char new[MAXPATHLEN];
1766         char *cp = rindex(local, '/');
1767         int d, count=0;
1768         char ext = '1';
1769
1770         if (cp)
1771                 *cp = '\0';
1772         d = access(cp ? local : ".", 2);
1773         if (cp)
1774                 *cp = '/';
1775         if (d < 0) {
1776                 perror(local);
1777                 return((char *) 0);
1778         }
1779         (void) strcpy(new, local);
1780         cp = new + strlen(new);
1781         *cp++ = '.';
1782         while (!d) {
1783                 if (++count == 100) {
1784                         printf("runique: can't find unique file name.\n");
1785                         (void) fflush(stdout);
1786                         return((char *) 0);
1787                 }
1788                 *cp++ = ext;
1789                 *cp = '\0';
1790                 if (ext == '9')
1791                         ext = '0';
1792                 else
1793                         ext++;
1794                 if ((d = access(new, 0)) < 0)
1795                         break;
1796                 if (ext != '0')
1797                         cp--;
1798                 else if (*(cp - 2) == '.')
1799                         *(cp - 1) = '1';
1800                 else {
1801                         *(cp - 2) = *(cp - 2) + 1;
1802                         cp--;
1803                 }
1804         }
1805         return(new);
1806 }
1807 #endif
1808
1809 int null(void)
1810 {
1811         return 0;
1812 }