reactos/base/applications/network/ftp/main.c

   1 /*
   2  * Copyright (c) 1985, 1989 Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms are permitted
   6  * provided that the above copyright notice and this paragraph are
   7  * duplicated in all such forms and that any documentation,
   8  * advertising materials, and other materials related to such
   9  * distribution and use acknowledge that the software was developed
  10  * by the University of California, Berkeley.  The name of the
  11  * University may not be used to endorse or promote products derived
  12  * from this software without specific prior written permission.
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16  */
  17
  18 #ifndef lint
  19 char copyright[] =
  20 "@(#) Copyright (c) 1985, 1989 Regents of the University of California.\n\
  21  All rights reserved.\n";
  22 #endif /* not lint */
  23
  24 #ifndef lint
  25 static char sccsid[] = "@(#)main.c      based on 5.13 (Berkeley) 3/14/89";
  26 #endif /* not lint */
  27
  28 /*
  29  * FTP User Program -- Command Interface.
  30  */
  31 #include "precomp.h"
  32
  33 #if defined(sun) && !defined(FD_SET)
  34 typedef int uid_t;
  35 #endif
  36
  37 uid_t   getuid(void);
  38 void    intr(void);
  39 void    lostpeer(void);
  40 char    *getlogin(void);
  41
  42 short   portnum;
  43
  44 char    home[128];
  45 char    *globerr;
  46 int     autologin;
  47
  48
  49
  50 /* Lot's of options... */
  51 /*
  52  * Options and other state info.
  53  */
  54 int     trace;                  /* trace packets exchanged */
  55 int     hash;                   /* print # for each buffer transferred */
  56 //int   sendport;               /* use PORT cmd for each data connection */
  57 int     verbose;                /* print messages coming back from server */
  58 int     connected;              /* connected to server */
  59 int     fromatty;               /* input is from a terminal */
  60 int     interactive;            /* interactively prompt on m* cmds */
  61 int     debug;                  /* debugging level */
  62 int     bell;                   /* ring bell on cmd completion */
  63 int     doglob;                 /* glob local file names */
  64 int     proxy;                  /* proxy server connection active */
  65 int     passivemode;
  66 int     proxflag;               /* proxy connection exists */
  67 int     sunique;                /* store files on server with unique name */
  68 int     runique;                /* store local files with unique name */
  69 int     mcase;                  /* map upper to lower case for mget names */
  70 int     ntflag;                 /* use ntin ntout tables for name translation */
  71 int     mapflag;                /* use mapin mapout templates on file names */
  72 int     code;                   /* return/reply code for ftp command */
  73 int     crflag;                 /* if 1, strip car. rets. on ascii gets */
  74 char    pasv[64];               /* passive port for proxy data connection */
  75 char    *altarg;                /* argv[1] with no shell-like preprocessing  */
  76 char    ntin[17];               /* input translation table */
  77 char    ntout[17];              /* output translation table */
  78 // #include <sys/param.h>
  79 char    mapin[MAXPATHLEN];      /* input map template */
  80 char    mapout[MAXPATHLEN];     /* output map template */
  81 char    typename[32];           /* name of file transfer type */
  82 int     type;                   /* file transfer type */
  83 char    structname[32];         /* name of file transfer structure */
  84 int     stru;                   /* file transfer structure */
  85 char    formname[32];           /* name of file transfer format */
  86 int     form;                   /* file transfer format */
  87 char    modename[32];           /* name of file transfer mode */
  88 int     mode;                   /* file transfer mode */
  89 char    bytename[32];           /* local byte size in ascii */
  90 int     bytesize;               /* local byte size in binary */
  91
  92 jmp_buf toplevel;               /* non-local goto stuff for cmd scanner */
  93
  94 char    line[200];              /* input line buffer */
  95 char    *stringbase;            /* current scan point in line buffer */
  96 char    argbuf[200];            /* argument storage buffer */
  97 char    *argbase;               /* current storage point in arg buffer */
  98 int     margc;                  /* count of arguments on input line */
  99 const char      *margv[20];     /* args parsed from input line */
 100 int     cpend;                  /* flag: if != 0, then pending server reply */
 101 int     mflag;                  /* flag: if != 0, then active multi command */
 102
 103 int     options;                /* used during socket creation */
 104
 105 int     macnum;                 /* number of defined macros */
 106 struct  macel macros[16];
 107 char    macbuf[4096];
 108
 109 /*
 110  * Need to start a listen on the data channel
 111  * before we send the command, otherwise the
 112  * server's connect may fail.
 113  */
 114 int sendport = -1;
 115
 116 static const char *slurpstring();
 117
 118
 119 int main(int argc, const char *argv[])
 120 {
 121         const char *cp;
 122         int top;
 123 #if 0
 124         char homedir[MAXPATHLEN];
 125 #endif
 126
 127         int err;
 128         WORD wVerReq;
 129
 130         WSADATA WSAData;
 131         struct  servent *sp;            /* service spec for tcp/ftp */
 132
 133         /* Disable output buffering, for the benefit of Emacs.  */
 134         //setbuf(stdout, NULL);
 135
 136         _fmode = O_BINARY; // This causes an error somewhere.
 137
 138         wVerReq = MAKEWORD(1,1);
 139
 140         err = WSAStartup(wVerReq, &WSAData);
 141         if (err != 0)
 142         {
 143            fprintf(stderr, "Could not initialize Windows socket interface.");
 144            exit(1);
 145         }
 146
 147         sp = getservbyname("ftp", "tcp");
 148         if (sp == 0) {
 149                 fprintf(stderr, "ftp: ftp/tcp: unknown service\n");
 150                 exit(1);
 151         }
 152
 153         portnum = sp->s_port;
 154
 155
 156         doglob = 1;
 157         interactive = 1;
 158         autologin = 1;
 159         argc--, argv++;
 160         while (argc > 0 && **argv == '-') {
 161                 for (cp = *argv + 1; *cp; cp++)
 162                         switch (*cp) {
 163
 164                         case 'd':
 165                                 options |= SO_DEBUG;
 166                                 debug++;
 167                                 break;
 168
 169                         case 'v':
 170                                 verbose++;
 171                                 break;
 172
 173                         case 't':
 174                                 trace++;
 175                                 break;
 176
 177                         case 'i':
 178                                 interactive = 0;
 179                                 break;
 180
 181                         case 'n':
 182                                 autologin = 0;
 183                                 break;
 184
 185                         case 'g':
 186                                 doglob = 0;
 187                                 break;
 188
 189                         default:
 190                                 fprintf(stdout,
 191                                   "ftp: %c: unknown option\n", *cp);
 192                                 exit(1);
 193                         }
 194                 argc--, argv++;
 195         }
 196 //      fromatty = isatty(fileno(stdin));
 197         fromatty = 1; // Strengthen this test
 198         /*
 199          * Set up defaults for FTP.
 200          */
 201         (void) strcpy(typename, "ascii"), type = TYPE_A;
 202         (void) strcpy(formname, "non-print"), form = FORM_N;
 203         (void) strcpy(modename, "stream"), mode = MODE_S;
 204         (void) strcpy(structname, "file"), stru = STRU_F;
 205         (void) strcpy(bytename, "8"), bytesize = 8;
 206         if (fromatty)
 207                 verbose++;
 208         cpend = 0;           /* no pending replies */
 209         proxy = 0;      /* proxy not active */
 210     passivemode = 1; /* passive mode *is* active */
 211         crflag = 1;    /* strip c.r. on ascii gets */
 212         /*
 213          * Set up the home directory in case we're globbing.
 214          */
 215 #if 0
 216         cp = getlogin();
 217         if (cp != NULL) {
 218                 pw = getpwnam(cp);
 219         }
 220         if (pw == NULL)
 221                 pw = getpwuid(getuid());
 222         if (pw != NULL) {
 223                 home = homedir;
 224                 (void) strcpy(home, pw->pw_dir);
 225         }
 226 #endif
 227         strcpy(home, "C:/");
 228         if (argc > 0) {
 229                 if (setjmp(toplevel))
 230                         exit(0);
 231 //              (void) signal(SIGINT, intr);
 232 //              (void) signal(SIGPIPE, lostpeer);
 233                 setpeer(argc + 1, argv - 1);
 234         }
 235         top = setjmp(toplevel) == 0;
 236         if (top) {
 237 //              (void) signal(SIGINT, intr);
 238 //              (void) signal(SIGPIPE, lostpeer);
 239         }
 240         for (;;) {
 241                 cmdscanner(top);
 242                 top = 1;
 243         }
 244 }
 245
 246 void intr(void)
 247 {
 248         longjmp(toplevel, 1);
 249 }
 250
 251 void lostpeer(void)
 252 {
 253    extern SOCKET cout;
 254    extern int data;
 255
 256    if (connected) {
 257       if (cout) {
 258          closesocket(cout);
 259          cout = 0;
 260       }
 261       if (data >= 0) {
 262          (void) shutdown(data, 1+1);
 263          (void) close(data);
 264          data = -1;
 265       }
 266       connected = 0;
 267    }
 268    pswitch(1);
 269    if (connected) {
 270       if (cout) {
 271                                                 closesocket(cout);
 272          cout = 0;
 273       }
 274       connected = 0;
 275    }
 276    proxflag = 0;
 277    pswitch(0);
 278 }
 279
 280 /*char *
 281 tail(char *filename)
 282 {
 283         register char *s;
 284
 285         while (*filename) {
 286                 s = rindex(filename, '/');
 287                 if (s == NULL)
 288                         break;
 289                 if (s[1])
 290                         return (s + 1);
 291                 *s = '\0';
 292         }
 293         return (filename);
 294 }
 295 */
 296 /*
 297  * Command parser.
 298  */
 299 void cmdscanner(int top)
 300 {
 301         register struct cmd *c;
 302
 303         if (!top)
 304                 (void) putchar('\n');
 305         for (;;) {
 306                 (void) fflush(stdout);
 307                 if (fromatty) {
 308                         printf("ftp> ");
 309                         (void) fflush(stdout);
 310                 }
 311                 if (gets(line) == 0) {
 312                         if (feof(stdin) || ferror(stdin))
 313                                 quit(0, NULL);
 314                         break;
 315                 }
 316                 if (line[0] == 0)
 317                         break;
 318                 makeargv();
 319                 if (margc == 0) {
 320                         continue;
 321                 }
 322                 c = getcmd(margv[0]);
 323                 if (c == (struct cmd *)-1) {
 324                         printf("?Ambiguous command\n");
 325                         continue;
 326                 }
 327                 if (c == 0) {
 328                         printf("?Invalid command\n");
 329                         continue;
 330                 }
 331                 if (c->c_conn && !connected) {
 332                         printf ("Not connected.\n");
 333                         continue;
 334                 }
 335                 (*c->c_handler)(margc, margv);
 336                 if (bell && c->c_bell)
 337                         (void) putchar('\007');
 338                 if (c->c_handler != help)
 339                         break;
 340         }
 341         (void) fflush(stdout);
 342 //      (void) signal(SIGINT, intr);
 343 //      (void) signal(SIGPIPE, lostpeer);
 344 }
 345
 346 struct cmd *
 347 getcmd(const char *name)
 348 {
 349         extern struct cmd cmdtab[];
 350         const char *p, *q;
 351         struct cmd *c, *found;
 352         int nmatches, longest;
 353
 354         longest = 0;
 355         nmatches = 0;
 356         found = 0;
 357         for (c = cmdtab; (p = c->c_name); c++) {
 358                 for (q = name; *q == *p++; q++)
 359                         if (*q == 0)            /* exact match? */
 360                                 return (c);
 361                 if (!*q) {                      /* the name was a prefix */
 362                         if (q - name > longest) {
 363                                 longest = q - name;
 364                                 nmatches = 1;
 365                                 found = c;
 366                         } else if (q - name == longest)
 367                                 nmatches++;
 368                 }
 369         }
 370         if (nmatches > 1)
 371                 return ((struct cmd *)-1);
 372         return (found);
 373 }
 374
 375 /*
 376  * Slice a string up into argc/argv.
 377  */
 378
 379 int slrflag;
 380
 381 void makeargv(void)
 382 {
 383         const char **argp;
 384
 385         margc = 0;
 386         argp = margv;
 387         stringbase = line;              /* scan from first of buffer */
 388         argbase = argbuf;               /* store from first of buffer */
 389         slrflag = 0;
 390         while ((*argp++ = slurpstring()))
 391                 margc++;
 392 }
 393
 394 /*
 395  * Parse string into argbuf;
 396  * implemented with FSM to
 397  * handle quoting and strings
 398  */
 399 static const char *
 400 slurpstring(void)
 401 {
 402         int got_one = 0;
 403         register char *sb = stringbase;
 404         register char *ap = argbase;
 405         char *tmp = argbase;            /* will return this if token found */
 406
 407         if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
 408                 switch (slrflag) {      /* and $ as token for macro invoke */
 409                         case 0:
 410                                 slrflag++;
 411                                 stringbase++;
 412                                 return ((*sb == '!') ? "!" : "$");
 413                                 /* NOTREACHED */
 414                         case 1:
 415                                 slrflag++;
 416                                 altarg = stringbase;
 417                                 break;
 418                         default:
 419                                 break;
 420                 }
 421         }
 422
 423 S0:
 424         switch (*sb) {
 425
 426         case '\0':
 427                 goto OUT1;
 428
 429         case ' ':
 430         case '\t':
 431                 sb++; goto S0;
 432
 433         default:
 434                 switch (slrflag) {
 435                         case 0:
 436                                 slrflag++;
 437                                 break;
 438                         case 1:
 439                                 slrflag++;
 440                                 altarg = sb;
 441                                 break;
 442                         default:
 443                                 break;
 444                 }
 445                 goto S1;
 446         }
 447
 448 S1:
 449         switch (*sb) {
 450
 451         case ' ':
 452         case '\t':
 453         case '\0':
 454                 goto OUT1;      /* end of token */
 455
 456         case '\\':
 457                 sb++; goto S2;  /* slurp next character */
 458
 459         case '"':
 460                 sb++; goto S3;  /* slurp quoted string */
 461
 462         default:
 463                 *ap++ = *sb++;  /* add character to token */
 464                 got_one = 1;
 465                 goto S1;
 466         }
 467
 468 S2:
 469         switch (*sb) {
 470
 471         case '\0':
 472                 goto OUT1;
 473
 474         default:
 475                 *ap++ = *sb++;
 476                 got_one = 1;
 477                 goto S1;
 478         }
 479
 480 S3:
 481         switch (*sb) {
 482
 483         case '\0':
 484                 goto OUT1;
 485
 486         case '"':
 487                 sb++; goto S1;
 488
 489         default:
 490                 *ap++ = *sb++;
 491                 got_one = 1;
 492                 goto S3;
 493         }
 494
 495 OUT1:
 496         if (got_one)
 497                 *ap++ = '\0';
 498         argbase = ap;                   /* update storage pointer */
 499         stringbase = sb;                /* update scan pointer */
 500         if (got_one) {
 501                 return(tmp);
 502         }
 503         switch (slrflag) {
 504                 case 0:
 505                         slrflag++;
 506                         break;
 507                 case 1:
 508                         slrflag++;
 509                         altarg = (char *) 0;
 510                         break;
 511                 default:
 512                         break;
 513         }
 514         return((char *)0);
 515 }
 516
 517 #define HELPINDENT (sizeof ("directory"))
 518
 519 /*
 520  * Help command.
 521  * Call each command handler with argc == 0 and argv[0] == name.
 522  */
 523 void help(int argc, const char *argv[])
 524 {
 525         extern struct cmd cmdtab[];
 526         struct cmd *c;
 527
 528         if (argc == 1) {
 529                 register int i, j, w, k;
 530                 int columns, width = 0, lines;
 531                 extern int NCMDS;
 532
 533                 printf("Commands may be abbreviated.  Commands are:\n\n");
 534                 for (c = cmdtab; c < &cmdtab[NCMDS]; c++) {
 535                         int len = strlen(c->c_name);
 536
 537                         if (len > width)
 538                                 width = len;
 539                 }
 540                 width = (width + 8) &~ 7;
 541                 columns = 80 / width;
 542                 if (columns == 0)
 543                         columns = 1;
 544                 lines = (NCMDS + columns - 1) / columns;
 545                 for (i = 0; i < lines; i++) {
 546                         for (j = 0; j < columns; j++) {
 547                                 c = cmdtab + j * lines + i;
 548                                 if (c->c_name && (!proxy || c->c_proxy)) {
 549                                         printf("%s", c->c_name);
 550                                 }
 551                                 else if (c->c_name) {
 552                                         for (k=0; k < (int) strlen(c->c_name); k++) {
 553                                                 (void) putchar(' ');
 554                                         }
 555                                 }
 556                                 if (c + lines >= &cmdtab[NCMDS]) {
 557                                         printf("\n");
 558                                         break;
 559                                 }
 560                                 w = strlen(c->c_name);
 561                                 while (w < width) {
 562                                         w = (w + 8) &~ 7;
 563                                         (void) putchar('\t');
 564                                 }
 565                         }
 566                 }
 567                 (void) fflush(stdout);
 568                 return;
 569         }
 570         while (--argc > 0) {
 571                 const char *arg;
 572                 arg = *++argv;
 573                 c = getcmd(arg);
 574                 if (c == (struct cmd *)-1)
 575                         printf("?Ambiguous help command %s\n", arg);
 576                 else if (c == (struct cmd *)0)
 577                         printf("?Invalid help command %s\n", arg);
 578                 else
 579                         printf("%-*s\t%s\n", (int)HELPINDENT,
 580                                 c->c_name, c->c_help);
 581         }
 582         (void) fflush(stdout);
 583 }