networking/wget.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * wget - retrieve a file using HTTP or FTP
   4  *
   5  * Chip Rosenthal Covad Communications <chip@laserlink.net>
   6  *
   7  */
   8
   9 #include <stdio.h>
  10 #include <errno.h>
  11 #include <stdlib.h>
  12 #include <unistd.h>
  13 #include <ctype.h>
  14 #include <string.h>
  15 #include <unistd.h>
  16 #include <signal.h>
  17 #include <sys/ioctl.h>
  18
  19 #include <sys/time.h>
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <sys/socket.h>
  23 #include <netinet/in.h>
  24 #include <arpa/inet.h>
  25 #include <netdb.h>
  26
  27 #include "busybox.h"
  28
  29 /* Stupid libc5 doesn't define this... */
  30 #ifndef timersub
  31 #define timersub(a, b, result)                                                \
  32   do {                                                                        \
  33     (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;                             \
  34     (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;                          \
  35     if ((result)->tv_usec < 0) {                                              \
  36       --(result)->tv_sec;                                                     \
  37       (result)->tv_usec += 1000000;                                           \
  38     }                                                                         \
  39   } while (0)
  40 #endif
  41
  42 struct host_info {
  43         char *host;
  44         int port;
  45         char *path;
  46         int is_ftp;
  47         char *user;
  48 };
  49
  50 static void parse_url(char *url, struct host_info *h);
  51 static FILE *open_socket(char *host, int port);
  52 static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
  53 static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
  54 static void progressmeter(int flag);
  55
  56 /* Globals (can be accessed from signal handlers */
  57 static off_t filesize = 0;              /* content-length of the file */
  58 static int chunked = 0;                 /* chunked transfer encoding */
  59 #ifdef BB_FEATURE_WGET_STATUSBAR
  60 static char *curfile;                   /* Name of current file being transferred. */
  61 static struct timeval start;    /* Time a transfer started. */
  62 static volatile unsigned long statbytes; /* Number of bytes transferred so far. */
  63 /* For progressmeter() -- number of seconds before xfer considered "stalled" */
  64 static const int STALLTIME = 5;
  65 #endif
  66
  67 static void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
  68 {
  69         if (output != stdout && do_continue==0) {
  70                 fclose(output);
  71                 unlink(fname_out);
  72         }
  73 }
  74
  75 #define close_delete_and_die(s...) { \
  76         close_and_delete_outfile(output, fname_out, do_continue); \
  77         error_msg_and_die(s); }
  78
  79
  80 #ifdef BB_FEATURE_WGET_AUTHENTICATION
  81 /*
  82  *  Base64-encode character string
  83  *  oops... isn't something similar in uuencode.c?
  84  *  It would be better to use already existing code
  85  */
  86 char *base64enc(char *p, char *buf, int len) {
  87
  88         char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
  89                     "0123456789+/";
  90                 char *s = buf;
  91
  92         while(*p) {
  93                                 if (s >= buf+len-4)
  94                                         error_msg_and_die("buffer overflow");
  95                 *(s++) = al[(*p >> 2) & 0x3F];
  96                 *(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
  97                 *s = *(s+1) = '=';
  98                 *(s+2) = 0;
  99                 if (! *(++p)) break;
 100                 *(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
 101                 if (! *(++p)) break;
 102                 *(s++) = al[*(p++) & 0x3F];
 103         }
 104
 105                 return buf;
 106 }
 107 #endif
 108
 109 int wget_main(int argc, char **argv)
 110 {
 111         int n, try=5, status;
 112         int port;
 113         char *proxy;
 114         char *s, buf[512];
 115         struct stat sbuf;
 116
 117         struct host_info server, target;
 118
 119         FILE *sfp = NULL;                       /* socket to web/ftp server                     */
 120         FILE *dfp = NULL;                       /* socket to ftp server (data)          */
 121         char *fname_out = NULL;         /* where to direct output (-O)          */
 122         int do_continue = 0;            /* continue a prev transfer (-c)        */
 123         long beg_range = 0L;            /*   range at which continue begins     */
 124         int got_clen = 0;                       /* got content-length: from server      */
 125         FILE *output;                           /* socket to web server                         */
 126         int quiet_flag = FALSE;         /* Be verry, verry quiet...                     */
 127
 128         /*
 129          * Crack command line.
 130          */
 131         while ((n = getopt(argc, argv, "cqO:")) != EOF) {
 132                 switch (n) {
 133                 case 'c':
 134                         ++do_continue;
 135                         break;
 136                 case 'q':
 137                         quiet_flag = TRUE;
 138                         break;
 139                 case 'O':
 140                         /* can't set fname_out to NULL if outputting to stdout, because
 141                          * this gets interpreted as the auto-gen output filename
 142                          * case below  - tausq@debian.org
 143                          */
 144                         fname_out = optarg;
 145                         break;
 146                 default:
 147                         show_usage();
 148                 }
 149         }
 150
 151         if (argc - optind != 1)
 152                         show_usage();
 153
 154         parse_url(argv[optind], &target);
 155         server.host = target.host;
 156         server.port = target.port;
 157
 158         /*
 159          * Use the proxy if necessary.
 160          */
 161         proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
 162         if (proxy)
 163                 parse_url(xstrdup(proxy), &server);
 164
 165         /* Guess an output filename */
 166         if (!fname_out) {
 167                 fname_out =
 168 #ifdef BB_FEATURE_WGET_STATUSBAR
 169                         curfile =
 170 #endif
 171                         get_last_path_component(target.path);
 172                 if (fname_out==NULL || strlen(fname_out)<1) {
 173                         fname_out =
 174 #ifdef BB_FEATURE_WGET_STATUSBAR
 175                                 curfile =
 176 #endif
 177                                 "index.html";
 178                 }
 179 #ifdef BB_FEATURE_WGET_STATUSBAR
 180         } else {
 181                 curfile = get_last_path_component(fname_out);
 182 #endif
 183         }
 184         if (do_continue && !fname_out)
 185                 error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
 186
 187
 188         /*
 189          * Open the output file stream.
 190          */
 191         if (strcmp(fname_out, "-") == 0) {
 192                 output = stdout;
 193         } else {
 194                 output = xfopen(fname_out, (do_continue ? "a" : "w"));
 195         }
 196
 197         /*
 198          * Determine where to start transfer.
 199          */
 200         if (do_continue) {
 201                 if (fstat(fileno(output), &sbuf) < 0)
 202                         perror_msg_and_die("fstat()");
 203                 if (sbuf.st_size > 0)
 204                         beg_range = sbuf.st_size;
 205                 else
 206                         do_continue = 0;
 207         }
 208
 209         if (proxy || !target.is_ftp) {
 210                 /*
 211                  *  HTTP session
 212                  */
 213                 do {
 214                         if (! --try)
 215                                 close_delete_and_die("too many redirections");
 216
 217                         /*
 218                          * Open socket to http server
 219                          */
 220                         if (sfp) fclose(sfp);
 221                         sfp = open_socket(server.host, server.port);
 222
 223                         /*
 224                          * Send HTTP request.
 225                          */
 226                         if (proxy) {
 227                                 fprintf(sfp, "GET %stp://%s:%d/%s HTTP/1.1\r\n",
 228                                         target.is_ftp ? "f" : "ht", target.host,
 229                                         target.port, target.path);
 230                         } else {
 231                                 fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
 232                         }
 233
 234                         fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
 235
 236 #ifdef BB_FEATURE_WGET_AUTHENTICATION
 237                         if (target.user) {
 238                                 fprintf(sfp, "Authorization: Basic %s\r\n",
 239                                         base64enc(target.user, buf, sizeof(buf)));
 240                         }
 241                         if (proxy && server.user) {
 242                                 fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
 243                                         base64enc(server.user, buf, sizeof(buf)));
 244                         }
 245 #endif
 246
 247                         if (do_continue)
 248                                 fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
 249                         fprintf(sfp,"Connection: close\r\n\r\n");
 250
 251                         /*
 252                         * Retrieve HTTP response line and check for "200" status code.
 253                         */
 254 read_response:          if (fgets(buf, sizeof(buf), sfp) == NULL)
 255                                 close_delete_and_die("no response from server");
 256
 257                         for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
 258                         ;
 259                         for ( ; isspace(*s) ; ++s)
 260                         ;
 261                         switch (status = atoi(s)) {
 262                                 case 0:
 263                                 case 100:
 264                                         while (gethdr(buf, sizeof(buf), sfp, &n) != NULL);
 265                                         goto read_response;
 266                                 case 200:
 267                                         if (do_continue && output != stdout)
 268                                                 output = freopen(fname_out, "w", output);
 269                                         do_continue = 0;
 270                                         break;
 271                                 case 300:       /* redirection */
 272                                 case 301:
 273                                 case 302:
 274                                 case 303:
 275                                         break;
 276                                 case 206:
 277                                         if (do_continue)
 278                                                 break;
 279                                         /*FALLTHRU*/
 280                                 default:
 281                                         chomp(buf);
 282                                         close_delete_and_die("server returned error %d: %s", atoi(s), buf);
 283                         }
 284
 285                         /*
 286                          * Retrieve HTTP headers.
 287                          */
 288                         while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
 289                                 if (strcasecmp(buf, "content-length") == 0) {
 290                                         filesize = atol(s);
 291                                         got_clen = 1;
 292                                         continue;
 293                                 }
 294                                 if (strcasecmp(buf, "transfer-encoding") == 0) {
 295                                         if (strcasecmp(s, "chunked") == 0) {
 296                                                 chunked = got_clen = 1;
 297                                         } else {
 298                                         close_delete_and_die("server wants to do %s transfer encoding", s);
 299                                         }
 300                                 }
 301                                 if (strcasecmp(buf, "location") == 0) {
 302                                         if (s[0] == '/')
 303                                                 target.path = xstrdup(s+1);
 304                                         else {
 305                                                 parse_url(xstrdup(s), &target);
 306                                                 if (!proxy) {
 307                                                         server.host = target.host;
 308                                                         server.port = target.port;
 309                                                 }
 310                                         }
 311                                 }
 312                         }
 313                 } while(status >= 300);
 314
 315                 dfp = sfp;
 316         }
 317         else
 318         {
 319                 /*
 320                  *  FTP session
 321                  */
 322                 if (! target.user)
 323                         target.user = xstrdup("anonymous:busybox@");
 324
 325                 sfp = open_socket(server.host, server.port);
 326                 if (ftpcmd(NULL, NULL, sfp, buf) != 220)
 327                         close_delete_and_die("%s", buf+4);
 328
 329                 /*
 330                  * Splitting username:password pair,
 331                  * trying to log in
 332                  */
 333                 s = strchr(target.user, ':');
 334                 if (s)
 335                         *(s++) = '\0';
 336                 switch(ftpcmd("USER ", target.user, sfp, buf)) {
 337                         case 230:
 338                                 break;
 339                         case 331:
 340                                 if (ftpcmd("PASS ", s, sfp, buf) == 230)
 341                                         break;
 342                                 /* FALLTHRU (failed login) */
 343                         default:
 344                                 close_delete_and_die("ftp login: %s", buf+4);
 345                 }
 346
 347                 ftpcmd("CDUP", NULL, sfp, buf);
 348                 ftpcmd("TYPE I", NULL, sfp, buf);
 349
 350                 /*
 351                  * Querying file size
 352                  */
 353                 if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
 354                         filesize = atol(buf+4);
 355                         got_clen = 1;
 356                 }
 357
 358                 /*
 359                  * Entering passive mode
 360                  */
 361                 if (ftpcmd("PASV", NULL, sfp, buf) !=  227)
 362                         close_delete_and_die("PASV: %s", buf+4);
 363                 s = strrchr(buf, ',');
 364                 *s = 0;
 365                 port = atoi(s+1);
 366                 s = strrchr(buf, ',');
 367                 port += atoi(s+1) * 256;
 368                 dfp = open_socket(server.host, port);
 369
 370                 if (do_continue) {
 371                         sprintf(buf, "REST %ld", beg_range);
 372                         if (ftpcmd(buf, NULL, sfp, buf) != 350) {
 373                                 if (output != stdout)
 374                                         output = freopen(fname_out, "w", output);
 375                                 do_continue = 0;
 376                         } else
 377                                 filesize -= beg_range;
 378                 }
 379
 380                 if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
 381                         close_delete_and_die("RETR: %s", buf+4);
 382
 383         }
 384
 385
 386         /*
 387          * Retrieve file
 388          */
 389         if (chunked) {
 390                 fgets(buf, sizeof(buf), dfp);
 391                 filesize = strtol(buf, (char **) NULL, 16);
 392         }
 393         do {
 394 #ifdef BB_FEATURE_WGET_STATUSBAR
 395         statbytes=0;
 396         if (quiet_flag==FALSE)
 397                 progressmeter(-1);
 398 #endif
 399                 while ((filesize > 0 || !got_clen) && (n = fread(buf, 1, chunked ? (filesize > sizeof(buf) ? sizeof(buf) : filesize) : sizeof(buf), dfp)) > 0) {
 400                 fwrite(buf, 1, n, output);
 401 #ifdef BB_FEATURE_WGET_STATUSBAR
 402                 statbytes+=n;
 403                 if (quiet_flag==FALSE)
 404                         progressmeter(1);
 405 #endif
 406                 if (got_clen)
 407                         filesize -= n;
 408         }
 409
 410                 if (chunked) {
 411                         fgets(buf, sizeof(buf), dfp); /* This is a newline */
 412                         fgets(buf, sizeof(buf), dfp);
 413                         filesize = strtol(buf, (char **) NULL, 16);
 414                         if (filesize==0) chunked = 0; /* all done! */
 415                 }
 416
 417         if (n == 0 && ferror(dfp))
 418                 perror_msg_and_die("network read error");
 419         } while (chunked);
 420
 421         if (!proxy && target.is_ftp) {
 422                 fclose(dfp);
 423                 if (ftpcmd(NULL, NULL, sfp, buf) != 226)
 424                         error_msg_and_die("ftp error: %s", buf+4);
 425                 ftpcmd("QUIT", NULL, sfp, buf);
 426         }
 427 #ifdef BB_FEATURE_WGET_STATUSBAR
 428         if (quiet_flag==FALSE)
 429                 putc('\n', stderr);
 430 #endif
 431         exit(EXIT_SUCCESS);
 432 }
 433
 434
 435 void parse_url(char *url, struct host_info *h)
 436 {
 437         char *cp, *sp, *up;
 438
 439         if (strncmp(url, "http://", 7) == 0) {
 440                 h->port = 80;
 441                 h->host = url + 7;
 442                 h->is_ftp = 0;
 443         } else if (strncmp(url, "ftp://", 6) == 0) {
 444                 h->port = 21;
 445                 h->host = url + 6;
 446                 h->is_ftp = 1;
 447         } else
 448                 error_msg_and_die("not an http or ftp url: %s", url);
 449
 450         sp = strchr(h->host, '/');
 451         if (sp != NULL) {
 452                 *sp++ = '\0';
 453                 h->path = sp;
 454         } else
 455                 h->path = "";
 456
 457         up = strrchr(h->host, '@');
 458         if (up != NULL) {
 459                 h->user = h->host;
 460                 *up++ = '\0';
 461                 h->host = up;
 462         } else
 463                 h->user = NULL;
 464
 465         cp = strchr(h->host, ':');
 466         if (cp != NULL) {
 467                 *cp++ = '\0';
 468                 h->port = atoi(cp);
 469         }
 470
 471 }
 472
 473
 474 FILE *open_socket(char *host, int port)
 475 {
 476         struct sockaddr_in s_in;
 477         struct hostent *hp;
 478         int fd;
 479         FILE *fp;
 480
 481         memset(&s_in, 0, sizeof(s_in));
 482         s_in.sin_family = AF_INET;
 483         if ((hp = (struct hostent *) gethostbyname(host)) == NULL)
 484                 error_msg_and_die("cannot resolve %s", host);
 485         memcpy(&s_in.sin_addr, hp->h_addr_list[0], hp->h_length);
 486         s_in.sin_port = htons(port);
 487
 488         /*
 489          * Get the server onto a stdio stream.
 490          */
 491         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
 492                 perror_msg_and_die("socket()");
 493         if (connect(fd, (struct sockaddr *) &s_in, sizeof(s_in)) < 0)
 494                 perror_msg_and_die("connect(%s)", host);
 495         if ((fp = fdopen(fd, "r+")) == NULL)
 496                 perror_msg_and_die("fdopen()");
 497
 498         return fp;
 499 }
 500
 501
 502 char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
 503 {
 504         char *s, *hdrval;
 505         int c;
 506
 507         *istrunc = 0;
 508
 509         /* retrieve header line */
 510         if (fgets(buf, bufsiz, fp) == NULL)
 511                 return NULL;
 512
 513         /* see if we are at the end of the headers */
 514         for (s = buf ; *s == '\r' ; ++s)
 515                 ;
 516         if (s[0] == '\n')
 517                 return NULL;
 518
 519         /* convert the header name to lower case */
 520         for (s = buf ; isalnum(*s) || *s == '-' ; ++s)
 521                 *s = tolower(*s);
 522
 523         /* verify we are at the end of the header name */
 524         if (*s != ':')
 525                 error_msg_and_die("bad header line: %s", buf);
 526
 527         /* locate the start of the header value */
 528         for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s)
 529                 ;
 530         hdrval = s;
 531
 532         /* locate the end of header */
 533         while (*s != '\0' && *s != '\r' && *s != '\n')
 534                 ++s;
 535
 536         /* end of header found */
 537         if (*s != '\0') {
 538                 *s = '\0';
 539                 return hdrval;
 540         }
 541
 542         /* Rats!  The buffer isn't big enough to hold the entire header value. */
 543         while (c = getc(fp), c != EOF && c != '\n')
 544                 ;
 545         *istrunc = 1;
 546         return hdrval;
 547 }
 548
 549 static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
 550 {
 551         char *p;
 552
 553         if (s1) {
 554                 if (!s2) s2="";
 555                 fprintf(fp, "%s%s\n", s1, s2);
 556                 fflush(fp);
 557         }
 558
 559         do {
 560                 p = fgets(buf, 510, fp);
 561                 if (!p)
 562                         perror_msg_and_die("fgets()");
 563         } while (! isdigit(buf[0]) || buf[3] != ' ');
 564
 565         return atoi(buf);
 566 }
 567
 568 #ifdef BB_FEATURE_WGET_STATUSBAR
 569 /* Stuff below is from BSD rcp util.c, as added to openshh.
 570  * Original copyright notice is retained at the end of this file.
 571  *
 572  */
 573
 574
 575 static int
 576 getttywidth(void)
 577 {
 578         struct winsize winsize;
 579
 580         if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
 581                 return (winsize.ws_col ? winsize.ws_col : 80);
 582         else
 583                 return (80);
 584 }
 585
 586 static void
 587 updateprogressmeter(int ignore)
 588 {
 589         int save_errno = errno;
 590
 591         progressmeter(0);
 592         errno = save_errno;
 593 }
 594
 595 static void
 596 alarmtimer(int wait)
 597 {
 598         struct itimerval itv;
 599
 600         itv.it_value.tv_sec = wait;
 601         itv.it_value.tv_usec = 0;
 602         itv.it_interval = itv.it_value;
 603         setitimer(ITIMER_REAL, &itv, NULL);
 604 }
 605
 606
 607 static void
 608 progressmeter(int flag)
 609 {
 610         static const char prefixes[] = " KMGTP";
 611         static struct timeval lastupdate;
 612         static off_t lastsize;
 613         struct timeval now, td, wait;
 614         off_t cursize, abbrevsize;
 615         double elapsed;
 616         int ratio, barlength, i, remaining;
 617         char buf[256];
 618
 619         if (flag == -1) {
 620                 (void) gettimeofday(&start, (struct timezone *) 0);
 621                 lastupdate = start;
 622                 lastsize = 0;
 623         }
 624
 625         (void) gettimeofday(&now, (struct timezone *) 0);
 626         cursize = statbytes;
 627         if (filesize != 0 && !chunked) {
 628                 ratio = 100.0 * cursize / filesize;
 629                 ratio = MAX(ratio, 0);
 630                 ratio = MIN(ratio, 100);
 631         } else
 632                 ratio = 100;
 633
 634         snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
 635
 636         barlength = getttywidth() - 51;
 637         if (barlength > 0) {
 638                 i = barlength * ratio / 100;
 639                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 640                          "|%.*s%*s|", i,
 641                          "*****************************************************************************"
 642                          "*****************************************************************************",
 643                          barlength - i, "");
 644         }
 645         i = 0;
 646         abbrevsize = cursize;
 647         while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
 648                 i++;
 649                 abbrevsize >>= 10;
 650         }
 651         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
 652              (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
 653                  'B');
 654
 655         timersub(&now, &lastupdate, &wait);
 656         if (cursize > lastsize) {
 657                 lastupdate = now;
 658                 lastsize = cursize;
 659                 if (wait.tv_sec >= STALLTIME) {
 660                         start.tv_sec += wait.tv_sec;
 661                         start.tv_usec += wait.tv_usec;
 662                 }
 663                 wait.tv_sec = 0;
 664         }
 665         timersub(&now, &start, &td);
 666         elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
 667
 668         if (statbytes <= 0 || elapsed <= 0.0 || cursize > filesize) {
 669                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 670                          "   --:-- ETA");
 671         } else if (wait.tv_sec >= STALLTIME) {
 672                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 673                          " - stalled -");
 674         } else {
 675                 remaining = (int) (filesize / (statbytes / elapsed) - elapsed);
 676                 i = remaining / 3600;
 677                 if (i)
 678                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 679                                  "%2d:", i);
 680                 else
 681                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 682                                  "   ");
 683                 i = remaining % 3600;
 684                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
 685                          "%02d:%02d ETA", i / 60, i % 60);
 686         }
 687         write(fileno(stderr), buf, strlen(buf));
 688
 689         if (flag == -1) {
 690                 struct sigaction sa;
 691                 sa.sa_handler = updateprogressmeter;
 692                 sigemptyset(&sa.sa_mask);
 693                 sa.sa_flags = SA_RESTART;
 694                 sigaction(SIGALRM, &sa, NULL);
 695                 alarmtimer(1);
 696         } else if (flag == 1) {
 697                 alarmtimer(0);
 698                 statbytes = 0;
 699         }
 700 }
 701 #endif
 702
 703 /* Original copyright notice which applies to the BB_FEATURE_WGET_STATUSBAR stuff,
 704  * much of which was blatently stolen from openssh.  */
 705
 706 /*-
 707  * Copyright (c) 1992, 1993
 708  *      The Regents of the University of California.  All rights reserved.
 709  *
 710  * Redistribution and use in source and binary forms, with or without
 711  * modification, are permitted provided that the following conditions
 712  * are met:
 713  * 1. Redistributions of source code must retain the above copyright
 714  *    notice, this list of conditions and the following disclaimer.
 715  * 2. Redistributions in binary form must reproduce the above copyright
 716  *    notice, this list of conditions and the following disclaimer in the
 717  *    documentation and/or other materials provided with the distribution.
 718  *
 719  * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
 720  *              ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
 721  *
 722  * 4. Neither the name of the University nor the names of its contributors
 723  *    may be used to endorse or promote products derived from this software
 724  *    without specific prior written permission.
 725  *
 726  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 727  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 728  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 729  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 730  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 731  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 732  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 733  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 734  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 735  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 736  * SUCH DAMAGE.
 737  *
 738  *      $Id: wget.c,v 1.35 2001/04/11 20:11:51 kraai Exp $
 739  */
 740
 741
 742
 743 /*
 744 Local Variables:
 745 c-file-style: "linux"
 746 c-basic-offset: 4
 747 tab-width: 4
 748 End:
 749 */
 750
 751
 752