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-rw-r--r--wget.c834
1 files changed, 0 insertions, 834 deletions
diff --git a/wget.c b/wget.c
deleted file mode 100644
index 59373d1d9..000000000
--- a/wget.c
+++ /dev/null
@@ -1,834 +0,0 @@
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#ifndef _GNU_SOURCE
28#define _GNU_SOURCE
29#endif
30#include <getopt.h>
31
32#include "busybox.h"
33
34/* Stupid libc5 doesn't define this... */
35#ifndef timersub
36#define timersub(a, b, result) \
37 do { \
38 (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
39 (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
40 if ((result)->tv_usec < 0) { \
41 --(result)->tv_sec; \
42 (result)->tv_usec += 1000000; \
43 } \
44 } while (0)
45#endif
46
47struct host_info {
48 char *host;
49 int port;
50 char *path;
51 int is_ftp;
52 char *user;
53};
54
55static void parse_url(char *url, struct host_info *h);
56static FILE *open_socket(char *host, int port);
57static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
58static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
59
60/* Globals (can be accessed from signal handlers */
61static off_t filesize = 0; /* content-length of the file */
62static int chunked = 0; /* chunked transfer encoding */
63#ifdef BB_FEATURE_WGET_STATUSBAR
64static void progressmeter(int flag);
65static char *curfile; /* Name of current file being transferred. */
66static struct timeval start; /* Time a transfer started. */
67static volatile unsigned long statbytes = 0; /* Number of bytes transferred so far. */
68/* For progressmeter() -- number of seconds before xfer considered "stalled" */
69static const int STALLTIME = 5;
70#endif
71
72static void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
73{
74 if (output != stdout && do_continue==0) {
75 fclose(output);
76 unlink(fname_out);
77 }
78}
79
80/* Read NMEMB elements of SIZE bytes into PTR from STREAM. Returns the
81 * number of elements read, and a short count if an eof or non-interrupt
82 * error is encountered. */
83static size_t safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
84{
85 size_t ret = 0;
86
87 do {
88 clearerr(stream);
89 ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream);
90 } while (ret < nmemb && ferror(stream) && errno == EINTR);
91
92 return ret;
93}
94
95/* Write NMEMB elements of SIZE bytes from PTR to STREAM. Returns the
96 * number of elements written, and a short count if an eof or non-interrupt
97 * error is encountered. */
98static size_t safe_fwrite(void *ptr, size_t size, size_t nmemb, FILE *stream)
99{
100 size_t ret = 0;
101
102 do {
103 clearerr(stream);
104 ret += fwrite((char *)ptr + (ret * size), size, nmemb - ret, stream);
105 } while (ret < nmemb && ferror(stream) && errno == EINTR);
106
107 return ret;
108}
109
110/* Read a line or SIZE - 1 bytes into S, whichever is less, from STREAM.
111 * Returns S, or NULL if an eof or non-interrupt error is encountered. */
112static char *safe_fgets(char *s, int size, FILE *stream)
113{
114 char *ret;
115
116 do {
117 clearerr(stream);
118 ret = fgets(s, size, stream);
119 } while (ret == NULL && ferror(stream) && errno == EINTR);
120
121 return ret;
122}
123
124#define close_delete_and_die(s...) { \
125 close_and_delete_outfile(output, fname_out, do_continue); \
126 error_msg_and_die(s); }
127
128
129#ifdef BB_FEATURE_WGET_AUTHENTICATION
130/*
131 * Base64-encode character string
132 * oops... isn't something similar in uuencode.c?
133 * It would be better to use already existing code
134 */
135char *base64enc(char *p, char *buf, int len) {
136
137 char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
138 "0123456789+/";
139 char *s = buf;
140
141 while(*p) {
142 if (s >= buf+len-4)
143 error_msg_and_die("buffer overflow");
144 *(s++) = al[(*p >> 2) & 0x3F];
145 *(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
146 *s = *(s+1) = '=';
147 *(s+2) = 0;
148 if (! *(++p)) break;
149 *(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
150 if (! *(++p)) break;
151 *(s++) = al[*(p++) & 0x3F];
152 }
153
154 return buf;
155}
156#endif
157
158int wget_main(int argc, char **argv)
159{
160 int n, try=5, status;
161 int port;
162 char *proxy;
163 char *dir_prefix=NULL;
164 char *s, buf[512];
165 struct stat sbuf;
166 char extra_headers[1024];
167 char *extra_headers_ptr = extra_headers;
168 int extra_headers_left = sizeof(extra_headers);
169 int which_long_opt = 0, option_index = -1;
170 struct host_info server, target;
171
172 FILE *sfp = NULL; /* socket to web/ftp server */
173 FILE *dfp = NULL; /* socket to ftp server (data) */
174 char *fname_out = NULL; /* where to direct output (-O) */
175 int do_continue = 0; /* continue a prev transfer (-c) */
176 long beg_range = 0L; /* range at which continue begins */
177 int got_clen = 0; /* got content-length: from server */
178 FILE *output; /* socket to web server */
179 int quiet_flag = FALSE; /* Be verry, verry quiet... */
180
181#define LONG_HEADER 1
182 struct option long_options[] = {
183 { "continue", 0, NULL, 'c' },
184 { "quiet", 0, NULL, 'q' },
185 { "output-document", 1, NULL, 'O' },
186 { "header", 1, &which_long_opt, LONG_HEADER },
187 { 0, 0, 0, 0 }
188 };
189 /*
190 * Crack command line.
191 */
192 while ((n = getopt_long(argc, argv, "cqO:P:", long_options, &option_index)) != EOF) {
193 switch (n) {
194 case 'c':
195 ++do_continue;
196 break;
197 case 'P':
198 dir_prefix = optarg;
199 break;
200 case 'q':
201 quiet_flag = TRUE;
202 break;
203 case 'O':
204 /* can't set fname_out to NULL if outputting to stdout, because
205 * this gets interpreted as the auto-gen output filename
206 * case below - tausq@debian.org
207 */
208 fname_out = optarg;
209 break;
210 case 0:
211 switch (which_long_opt) {
212 case LONG_HEADER: {
213 int arglen = strlen(optarg);
214 if(extra_headers_left - arglen - 2 <= 0)
215 error_msg_and_die("extra_headers buffer too small(need %i)", extra_headers_left - arglen);
216 strcpy(extra_headers_ptr, optarg);
217 extra_headers_ptr += arglen;
218 extra_headers_left -= ( arglen + 2 );
219 *extra_headers_ptr++ = '\r';
220 *extra_headers_ptr++ = '\n';
221 *(extra_headers_ptr + 1) = 0;
222 break;
223 }
224 }
225 break;
226 default:
227 show_usage();
228 }
229 }
230
231 if (argc - optind != 1)
232 show_usage();
233
234 parse_url(argv[optind], &target);
235 server.host = target.host;
236 server.port = target.port;
237
238 /*
239 * Use the proxy if necessary.
240 */
241 proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
242 if (proxy)
243 parse_url(xstrdup(proxy), &server);
244
245 /* Guess an output filename */
246 if (!fname_out) {
247 fname_out =
248#ifdef BB_FEATURE_WGET_STATUSBAR
249 curfile =
250#endif
251 get_last_path_component(target.path);
252 if (fname_out==NULL || strlen(fname_out)<1) {
253 fname_out =
254#ifdef BB_FEATURE_WGET_STATUSBAR
255 curfile =
256#endif
257 "index.html";
258 }
259 if (dir_prefix != NULL)
260 fname_out = concat_path_file(dir_prefix, fname_out);
261#ifdef BB_FEATURE_WGET_STATUSBAR
262 } else {
263 curfile = get_last_path_component(fname_out);
264#endif
265 }
266 if (do_continue && !fname_out)
267 error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
268
269
270 /*
271 * Open the output file stream.
272 */
273 if (strcmp(fname_out, "-") == 0) {
274 output = stdout;
275 quiet_flag = TRUE;
276 } else {
277 output = xfopen(fname_out, (do_continue ? "a" : "w"));
278 }
279
280 /*
281 * Determine where to start transfer.
282 */
283 if (do_continue) {
284 if (fstat(fileno(output), &sbuf) < 0)
285 perror_msg_and_die("fstat()");
286 if (sbuf.st_size > 0)
287 beg_range = sbuf.st_size;
288 else
289 do_continue = 0;
290 }
291
292 if (proxy || !target.is_ftp) {
293 /*
294 * HTTP session
295 */
296 do {
297 if (! --try)
298 close_delete_and_die("too many redirections");
299
300 /*
301 * Open socket to http server
302 */
303 if (sfp) fclose(sfp);
304 sfp = open_socket(server.host, server.port);
305
306 /*
307 * Send HTTP request.
308 */
309 if (proxy) {
310 fprintf(sfp, "GET %stp://%s:%d/%s HTTP/1.1\r\n",
311 target.is_ftp ? "f" : "ht", target.host,
312 target.port, target.path);
313 } else {
314 fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
315 }
316
317 fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
318
319#ifdef BB_FEATURE_WGET_AUTHENTICATION
320 if (target.user) {
321 fprintf(sfp, "Authorization: Basic %s\r\n",
322 base64enc(target.user, buf, sizeof(buf)));
323 }
324 if (proxy && server.user) {
325 fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
326 base64enc(server.user, buf, sizeof(buf)));
327 }
328#endif
329
330 if (do_continue)
331 fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
332 if(extra_headers_left < sizeof(extra_headers))
333 fputs(extra_headers,sfp);
334 fprintf(sfp,"Connection: close\r\n\r\n");
335
336 /*
337 * Retrieve HTTP response line and check for "200" status code.
338 */
339read_response: if (fgets(buf, sizeof(buf), sfp) == NULL)
340 close_delete_and_die("no response from server");
341
342 for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
343 ;
344 for ( ; isspace(*s) ; ++s)
345 ;
346 switch (status = atoi(s)) {
347 case 0:
348 case 100:
349 while (gethdr(buf, sizeof(buf), sfp, &n) != NULL);
350 goto read_response;
351 case 200:
352 if (do_continue && output != stdout)
353 output = freopen(fname_out, "w", output);
354 do_continue = 0;
355 break;
356 case 300: /* redirection */
357 case 301:
358 case 302:
359 case 303:
360 break;
361 case 206:
362 if (do_continue)
363 break;
364 /*FALLTHRU*/
365 default:
366 chomp(buf);
367 close_delete_and_die("server returned error %d: %s", atoi(s), buf);
368 }
369
370 /*
371 * Retrieve HTTP headers.
372 */
373 while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
374 if (strcasecmp(buf, "content-length") == 0) {
375 filesize = atol(s);
376 got_clen = 1;
377 continue;
378 }
379 if (strcasecmp(buf, "transfer-encoding") == 0) {
380 if (strcasecmp(s, "chunked") == 0) {
381 chunked = got_clen = 1;
382 } else {
383 close_delete_and_die("server wants to do %s transfer encoding", s);
384 }
385 }
386 if (strcasecmp(buf, "location") == 0) {
387 if (s[0] == '/')
388 target.path = xstrdup(s+1);
389 else {
390 parse_url(xstrdup(s), &target);
391 if (!proxy) {
392 server.host = target.host;
393 server.port = target.port;
394 }
395 }
396 }
397 }
398 } while(status >= 300);
399
400 dfp = sfp;
401 }
402 else
403 {
404 /*
405 * FTP session
406 */
407 if (! target.user)
408 target.user = xstrdup("anonymous:busybox@");
409
410 sfp = open_socket(server.host, server.port);
411 if (ftpcmd(NULL, NULL, sfp, buf) != 220)
412 close_delete_and_die("%s", buf+4);
413
414 /*
415 * Splitting username:password pair,
416 * trying to log in
417 */
418 s = strchr(target.user, ':');
419 if (s)
420 *(s++) = '\0';
421 switch(ftpcmd("USER ", target.user, sfp, buf)) {
422 case 230:
423 break;
424 case 331:
425 if (ftpcmd("PASS ", s, sfp, buf) == 230)
426 break;
427 /* FALLTHRU (failed login) */
428 default:
429 close_delete_and_die("ftp login: %s", buf+4);
430 }
431
432 ftpcmd("CDUP", NULL, sfp, buf);
433 ftpcmd("TYPE I", NULL, sfp, buf);
434
435 /*
436 * Querying file size
437 */
438 if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
439 filesize = atol(buf+4);
440 got_clen = 1;
441 }
442
443 /*
444 * Entering passive mode
445 */
446 if (ftpcmd("PASV", NULL, sfp, buf) != 227)
447 close_delete_and_die("PASV: %s", buf+4);
448 s = strrchr(buf, ',');
449 *s = 0;
450 port = atoi(s+1);
451 s = strrchr(buf, ',');
452 port += atoi(s+1) * 256;
453 dfp = open_socket(server.host, port);
454
455 if (do_continue) {
456 sprintf(buf, "REST %ld", beg_range);
457 if (ftpcmd(buf, NULL, sfp, buf) != 350) {
458 if (output != stdout)
459 output = freopen(fname_out, "w", output);
460 do_continue = 0;
461 } else
462 filesize -= beg_range;
463 }
464
465 if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
466 close_delete_and_die("RETR: %s", buf+4);
467
468 }
469
470
471 /*
472 * Retrieve file
473 */
474 if (chunked) {
475 fgets(buf, sizeof(buf), dfp);
476 filesize = strtol(buf, (char **) NULL, 16);
477 }
478#ifdef BB_FEATURE_WGET_STATUSBAR
479 if (quiet_flag==FALSE)
480 progressmeter(-1);
481#endif
482 do {
483 while ((filesize > 0 || !got_clen) && (n = safe_fread(buf, 1, chunked ? (filesize > sizeof(buf) ? sizeof(buf) : filesize) : sizeof(buf), dfp)) > 0) {
484 safe_fwrite(buf, 1, n, output);
485#ifdef BB_FEATURE_WGET_STATUSBAR
486 statbytes+=n;
487#endif
488 if (got_clen)
489 filesize -= n;
490 }
491
492 if (chunked) {
493 safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
494 safe_fgets(buf, sizeof(buf), dfp);
495 filesize = strtol(buf, (char **) NULL, 16);
496 if (filesize==0) chunked = 0; /* all done! */
497 }
498
499 if (n == 0 && ferror(dfp))
500 perror_msg_and_die("network read error");
501 } while (chunked);
502#ifdef BB_FEATURE_WGET_STATUSBAR
503 if (quiet_flag==FALSE)
504 progressmeter(1);
505#endif
506 if (!proxy && target.is_ftp) {
507 fclose(dfp);
508 if (ftpcmd(NULL, NULL, sfp, buf) != 226)
509 error_msg_and_die("ftp error: %s", buf+4);
510 ftpcmd("QUIT", NULL, sfp, buf);
511 }
512 exit(EXIT_SUCCESS);
513}
514
515
516void parse_url(char *url, struct host_info *h)
517{
518 char *cp, *sp, *up;
519
520 if (strncmp(url, "http://", 7) == 0) {
521 h->port = 80;
522 h->host = url + 7;
523 h->is_ftp = 0;
524 } else if (strncmp(url, "ftp://", 6) == 0) {
525 h->port = 21;
526 h->host = url + 6;
527 h->is_ftp = 1;
528 } else
529 error_msg_and_die("not an http or ftp url: %s", url);
530
531 sp = strchr(h->host, '/');
532 if (sp != NULL) {
533 *sp++ = '\0';
534 h->path = sp;
535 } else
536 h->path = "";
537
538 up = strrchr(h->host, '@');
539 if (up != NULL) {
540 h->user = h->host;
541 *up++ = '\0';
542 h->host = up;
543 } else
544 h->user = NULL;
545
546 cp = strchr(h->host, ':');
547 if (cp != NULL) {
548 *cp++ = '\0';
549 h->port = atoi(cp);
550 }
551
552}
553
554
555FILE *open_socket(char *host, int port)
556{
557 struct sockaddr_in s_in;
558 struct hostent *hp;
559 int fd;
560 FILE *fp;
561
562 memset(&s_in, 0, sizeof(s_in));
563 s_in.sin_family = AF_INET;
564 hp = xgethostbyname(host);
565 memcpy(&s_in.sin_addr, hp->h_addr_list[0], hp->h_length);
566 s_in.sin_port = htons(port);
567
568 /*
569 * Get the server onto a stdio stream.
570 */
571 if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
572 perror_msg_and_die("socket()");
573 if (connect(fd, (struct sockaddr *) &s_in, sizeof(s_in)) < 0)
574 perror_msg_and_die("connect(%s)", host);
575 if ((fp = fdopen(fd, "r+")) == NULL)
576 perror_msg_and_die("fdopen()");
577
578 return fp;
579}
580
581
582char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
583{
584 char *s, *hdrval;
585 int c;
586
587 *istrunc = 0;
588
589 /* retrieve header line */
590 if (fgets(buf, bufsiz, fp) == NULL)
591 return NULL;
592
593 /* see if we are at the end of the headers */
594 for (s = buf ; *s == '\r' ; ++s)
595 ;
596 if (s[0] == '\n')
597 return NULL;
598
599 /* convert the header name to lower case */
600 for (s = buf ; isalnum(*s) || *s == '-' ; ++s)
601 *s = tolower(*s);
602
603 /* verify we are at the end of the header name */
604 if (*s != ':')
605 error_msg_and_die("bad header line: %s", buf);
606
607 /* locate the start of the header value */
608 for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s)
609 ;
610 hdrval = s;
611
612 /* locate the end of header */
613 while (*s != '\0' && *s != '\r' && *s != '\n')
614 ++s;
615
616 /* end of header found */
617 if (*s != '\0') {
618 *s = '\0';
619 return hdrval;
620 }
621
622 /* Rats! The buffer isn't big enough to hold the entire header value. */
623 while (c = getc(fp), c != EOF && c != '\n')
624 ;
625 *istrunc = 1;
626 return hdrval;
627}
628
629static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
630{
631 char *p;
632
633 if (s1) {
634 if (!s2) s2="";
635 fprintf(fp, "%s%s\n", s1, s2);
636 fflush(fp);
637 }
638
639 do {
640 p = fgets(buf, 510, fp);
641 if (!p)
642 perror_msg_and_die("fgets()");
643 } while (! isdigit(buf[0]) || buf[3] != ' ');
644
645 return atoi(buf);
646}
647
648#ifdef BB_FEATURE_WGET_STATUSBAR
649/* Stuff below is from BSD rcp util.c, as added to openshh.
650 * Original copyright notice is retained at the end of this file.
651 *
652 */
653
654
655static int
656getttywidth(void)
657{
658 struct winsize winsize;
659
660 if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
661 return (winsize.ws_col ? winsize.ws_col : 80);
662 else
663 return (80);
664}
665
666static void
667updateprogressmeter(int ignore)
668{
669 int save_errno = errno;
670
671 progressmeter(0);
672 errno = save_errno;
673}
674
675static void
676alarmtimer(int wait)
677{
678 struct itimerval itv;
679
680 itv.it_value.tv_sec = wait;
681 itv.it_value.tv_usec = 0;
682 itv.it_interval = itv.it_value;
683 setitimer(ITIMER_REAL, &itv, NULL);
684}
685
686
687static void
688progressmeter(int flag)
689{
690 static const char prefixes[] = " KMGTP";
691 static struct timeval lastupdate;
692 static off_t lastsize, totalsize;
693 struct timeval now, td, wait;
694 off_t cursize, abbrevsize;
695 double elapsed;
696 int ratio, barlength, i, remaining;
697 char buf[256];
698
699 if (flag == -1) {
700 (void) gettimeofday(&start, (struct timezone *) 0);
701 lastupdate = start;
702 lastsize = 0;
703 totalsize = filesize; /* as filesize changes.. */
704 }
705
706 (void) gettimeofday(&now, (struct timezone *) 0);
707 cursize = statbytes;
708 if (totalsize != 0 && !chunked) {
709 ratio = 100.0 * cursize / totalsize;
710 ratio = MAX(ratio, 0);
711 ratio = MIN(ratio, 100);
712 } else
713 ratio = 100;
714
715 snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
716
717 barlength = getttywidth() - 51;
718 if (barlength > 0) {
719 i = barlength * ratio / 100;
720 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
721 "|%.*s%*s|", i,
722 "*****************************************************************************"
723 "*****************************************************************************",
724 barlength - i, "");
725 }
726 i = 0;
727 abbrevsize = cursize;
728 while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
729 i++;
730 abbrevsize >>= 10;
731 }
732 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
733 (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
734 'B');
735
736 timersub(&now, &lastupdate, &wait);
737 if (cursize > lastsize) {
738 lastupdate = now;
739 lastsize = cursize;
740 if (wait.tv_sec >= STALLTIME) {
741 start.tv_sec += wait.tv_sec;
742 start.tv_usec += wait.tv_usec;
743 }
744 wait.tv_sec = 0;
745 }
746 timersub(&now, &start, &td);
747 elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
748
749 if (wait.tv_sec >= STALLTIME) {
750 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
751 " - stalled -");
752 } else if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalsize || chunked) {
753 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
754 " --:-- ETA");
755 } else {
756 remaining = (int) (totalsize / (statbytes / elapsed) - elapsed);
757 i = remaining / 3600;
758 if (i)
759 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
760 "%2d:", i);
761 else
762 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
763 " ");
764 i = remaining % 3600;
765 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
766 "%02d:%02d ETA", i / 60, i % 60);
767 }
768 write(fileno(stderr), buf, strlen(buf));
769
770 if (flag == -1) {
771 struct sigaction sa;
772 sa.sa_handler = updateprogressmeter;
773 sigemptyset(&sa.sa_mask);
774 sa.sa_flags = SA_RESTART;
775 sigaction(SIGALRM, &sa, NULL);
776 alarmtimer(1);
777 } else if (flag == 1) {
778 alarmtimer(0);
779 statbytes = 0;
780 putc('\n', stderr);
781 }
782}
783#endif
784
785/* Original copyright notice which applies to the BB_FEATURE_WGET_STATUSBAR stuff,
786 * much of which was blatently stolen from openssh. */
787
788/*-
789 * Copyright (c) 1992, 1993
790 * The Regents of the University of California. All rights reserved.
791 *
792 * Redistribution and use in source and binary forms, with or without
793 * modification, are permitted provided that the following conditions
794 * are met:
795 * 1. Redistributions of source code must retain the above copyright
796 * notice, this list of conditions and the following disclaimer.
797 * 2. Redistributions in binary form must reproduce the above copyright
798 * notice, this list of conditions and the following disclaimer in the
799 * documentation and/or other materials provided with the distribution.
800 *
801 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
802 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
803 *
804 * 4. Neither the name of the University nor the names of its contributors
805 * may be used to endorse or promote products derived from this software
806 * without specific prior written permission.
807 *
808 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
809 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
810 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
811 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
812 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
813 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
814 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
815 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
816 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
817 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
818 * SUCH DAMAGE.
819 *
820 * $Id: wget.c,v 1.45 2001/07/19 22:28:01 andersen Exp $
821 */
822
823
824
825/*
826Local Variables:
827c-file-style: "linux"
828c-basic-offset: 4
829tab-width: 4
830End:
831*/
832
833
834
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