1 /* Command line parsing.
2 Copyright (C) 1995, 1996, 1997, 1998, 2000, 2001, 2002
3 Free Software Foundation, Inc.
5 This file is part of GNU Wget.
7 GNU Wget is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GNU Wget is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Wget; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 In addition, as a special exception, the Free Software Foundation
22 gives permission to link the code of its release of Wget with the
23 OpenSSL project's "OpenSSL" library (or with modified versions of it
24 that use the same license as the "OpenSSL" library), and distribute
25 the linked executables. You must obey the GNU General Public License
26 in all respects for all of the code used other than "OpenSSL". If you
27 modify this file, you may extend this exception to your version of the
28 file, but you are not obligated to do so. If you do not wish to do
29 so, delete this exception statement from your version. */
37 #endif /* HAVE_UNISTD_H */
38 #include <sys/types.h>
43 #endif /* HAVE_STRING_H */
50 #endif /* HAVE_LOCALE_H */
67 #include "progress.h" /* for progress_handle_sigwinch */
70 /* On GNU system this will include system-wide getopt.h. */
73 #ifndef PATH_SEPARATOR
74 # define PATH_SEPARATOR '/'
79 extern LARGE_INT total_downloaded_bytes;
80 extern char *version_string;
82 extern struct cookie_jar *wget_cookie_jar;
85 void log_init PARAMS ((const char *, int));
86 void log_close PARAMS ((void));
87 void log_request_redirect_output PARAMS ((const char *));
89 static RETSIGTYPE redirect_output_signal PARAMS ((int));
91 const char *exec_name;
93 /* Initialize I18N. The initialization amounts to invoking
94 setlocale(), bindtextdomain() and textdomain().
95 Does nothing if NLS is disabled or missing. */
97 i18n_initialize (void)
99 /* If HAVE_NLS is defined, assume the existence of the three
100 functions invoked here. */
102 /* Set the current locale. */
103 /* Here we use LC_MESSAGES instead of LC_ALL, for two reasons.
104 First, message catalogs are all of I18N Wget uses anyway.
105 Second, setting LC_ALL has a dangerous potential of messing
106 things up. For example, when in a foreign locale, Solaris
107 strptime() fails to handle international dates correctly, which
108 makes http_atotm() malfunction. */
110 setlocale (LC_MESSAGES, "");
111 setlocale (LC_CTYPE, "");
113 setlocale (LC_ALL, "");
115 /* Set the text message domain. */
116 bindtextdomain ("wget", LOCALEDIR);
118 #endif /* HAVE_NLS */
121 /* Definition of command-line options. */
126 # define IF_SSL(x) NULL
130 # define IF_DEBUG(x) x
132 # define IF_DEBUG(x) NULL
135 struct cmdline_option {
136 const char *long_name;
141 /* Non-standard options that have to be handled specially in
151 const char *handle_cmd; /* for standard options */
152 int argtype; /* for non-standard options */
155 struct cmdline_option option_data[] =
157 { "accept", 'A', OPT_VALUE, "accept", -1 },
158 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
159 { "background", 'b', OPT_BOOLEAN, "background", -1 },
160 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
161 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
162 { "base", 'B', OPT_VALUE, "base", -1 },
163 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
164 { "cache", 'C', OPT_BOOLEAN, "cache", -1 },
165 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
166 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
167 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
168 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
169 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
170 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
171 { IF_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
172 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
173 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
174 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
175 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
176 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
177 { "domains", 'D', OPT_VALUE, "domains", -1 },
178 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
179 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
180 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
181 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
182 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
183 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
184 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
185 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
186 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
187 { "glob", 'g', OPT_BOOLEAN, "glob", -1 },
188 { "header", 0, OPT_VALUE, "header", -1 },
189 { "help", 'h', OPT__HELP, NULL, no_argument },
190 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
191 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
192 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
193 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
194 { "http-passwd", 0, OPT_VALUE, "httppasswd", -1 },
195 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
196 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
197 { "ignore-tags", 'G', OPT_VALUE, "ignoretags", -1 },
198 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
199 { "input-file", 'i', OPT_VALUE, "input", -1 },
200 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
201 { "level", 'l', OPT_VALUE, "reclevel", -1 },
202 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
203 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
204 { "mirror", 'm', OPT_BOOLEAN, NULL, -1 },
205 { "no", 'n', OPT__NO, NULL, required_argument },
206 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
207 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
208 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
209 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
210 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
211 { "parent", 0, OPT__PARENT, NULL, optional_argument },
212 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
213 { "post-data", 0, OPT_VALUE, "postdata", -1 },
214 { "post-file", 0, OPT_VALUE, "postfile", -1 },
215 { "progress", 0, OPT_VALUE, "progress", -1 },
216 { "proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
217 { "proxy-passwd", 0, OPT_VALUE, "proxypasswd", -1 },
218 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
219 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
220 { "quota", 'Q', OPT_VALUE, "quota", -1 },
221 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
222 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
223 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
224 { "referer", 0, OPT_VALUE, "referer", -1 },
225 { "reject", 'R', OPT_VALUE, "reject", -1 },
226 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
227 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
228 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
229 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
230 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
231 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
232 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
233 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
234 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
235 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
236 { IF_SSL ("sslcadir"), 0, OPT_VALUE, "sslcadir", -1 },
237 { IF_SSL ("sslcafile"), 0, OPT_VALUE, "sslcafile", -1 },
238 { IF_SSL ("sslcertfile"), 0, OPT_VALUE, "sslcertfile", -1 },
239 { IF_SSL ("sslcertkey"), 0, OPT_VALUE, "sslcertkey", -1 },
240 { IF_SSL ("sslcerttype"), 0, OPT_VALUE, "sslcerttype", -1 },
241 { IF_SSL ("sslcheckcert"), 0, OPT_VALUE, "sslcheckcert", -1 },
242 { IF_SSL ("sslprotocol"), 0, OPT_VALUE, "sslprotocol", -1 },
243 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
244 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
245 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
246 { "tries", 't', OPT_VALUE, "tries", -1 },
247 { "use-proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
248 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
249 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
250 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
251 { "version", 'V', OPT__VERSION, "version", no_argument },
252 { "wait", 'w', OPT_VALUE, "wait", -1 },
253 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
260 no_prefix (const char *s)
262 static char buffer[1024];
263 static char *p = buffer;
266 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
268 if (p + size >= buffer + sizeof (buffer))
279 /* The arguments that that main passes to getopt_long. */
280 static struct option long_options[2 * countof (option_data) + 1];
281 static char short_options[128];
283 /* Mapping between short option chars and option_data indices. */
284 static unsigned char optmap[96];
286 /* Marker for `--no-FOO' values in long_options. */
287 #define BOOLEAN_NEG_MARKER 1024
292 char *p = short_options;
294 for (i = 0; i < countof (option_data); i++)
296 struct cmdline_option *opt = &option_data[i];
297 struct option *longopt;
300 /* The option is disabled. */
303 longopt = &long_options[o++];
304 longopt->name = opt->long_name;
308 *p++ = opt->short_name;
309 optmap[opt->short_name - 32] = longopt - long_options;
314 longopt->has_arg = required_argument;
319 /* Don't specify optional arguments for boolean short
320 options. They are evil because they prevent combining of
322 longopt->has_arg = optional_argument;
323 /* For Boolean options, add the "--no-FOO" variant, which is
324 identical to "--foo", except it has opposite meaning and
325 it doesn't allow an argument. */
326 longopt = &long_options[o++];
327 longopt->name = no_prefix (opt->long_name);
328 longopt->has_arg = no_argument;
329 /* Mask the value so we'll be able to recognize that we're
330 dealing with the false value. */
331 longopt->val = i | BOOLEAN_NEG_MARKER;
334 assert (opt->argtype != -1);
335 longopt->has_arg = opt->argtype;
338 if (longopt->has_arg == required_argument)
340 /* Don't handle optional_argument */
344 xzero (long_options[o]);
348 /* Print the usage message. */
352 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
355 /* Print the help message, describing all the available options. If
356 you add an option, be sure to update this list. */
360 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
363 /* Had to split this in parts, so the #@@#%# Ultrix compiler and cpp
364 don't bitch. Also, it makes translation much easier. */
367 Mandatory arguments to long options are mandatory for short options too.\n\
371 -V, --version display the version of Wget and exit.\n\
372 -h, --help print this help.\n\
373 -b, --background go to background after startup.\n\
374 -e, --execute=COMMAND execute a `.wgetrc\'-style command.\n\
377 Logging and input file:\n\
378 -o, --output-file=FILE log messages to FILE.\n\
379 -a, --append-output=FILE append messages to FILE.\n\
380 -d, --debug print debug output.\n\
381 -q, --quiet quiet (no output).\n\
382 -v, --verbose be verbose (this is the default).\n\
383 -nv, --non-verbose turn off verboseness, without being quiet.\n\
384 -i, --input-file=FILE download URLs found in FILE.\n\
385 -F, --force-html treat input file as HTML.\n\
386 -B, --base=URL prepends URL to relative links in -F -i file.\n\
390 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n\
391 --retry-connrefused retry even if connection is refused.\n\
392 -O --output-document=FILE write documents to FILE.\n\
393 -nc, --no-clobber don\'t clobber existing files or use .# suffixes.\n\
394 -c, --continue resume getting a partially-downloaded file.\n\
395 --progress=TYPE select progress gauge type.\n\
396 -N, --timestamping don\'t re-retrieve files unless newer than local.\n\
397 -S, --server-response print server response.\n\
398 --spider don\'t download anything.\n\
399 -T, --timeout=SECONDS set all timeout values to SECONDS.\n\
400 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n\
401 --connect-timeout=SECS set the connect timeout to SECS.\n\
402 --read-timeout=SECS set the read timeout to SECS.\n\
403 -w, --wait=SECONDS wait SECONDS between retrievals.\n\
404 --waitretry=SECONDS wait 1...SECONDS between retries of a retrieval.\n\
405 --random-wait wait from 0...2*WAIT secs between retrievals.\n\
406 -Y, --proxy=on/off turn proxy on or off.\n\
407 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n\
408 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n\
409 --limit-rate=RATE limit download rate to RATE.\n\
410 --dns-cache=off disable caching DNS lookups.\n\
411 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n\
415 -nd, --no-directories don\'t create directories.\n\
416 -x, --force-directories force creation of directories.\n\
417 -nH, --no-host-directories don\'t create host directories.\n\
418 -P, --directory-prefix=PREFIX save files to PREFIX/...\n\
419 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n\
423 --http-user=USER set http user to USER.\n\
424 --http-passwd=PASS set http password to PASS.\n\
425 -C, --cache=on/off (dis)allow server-cached data (normally allowed).\n\
426 -E, --html-extension save all text/html documents with .html extension.\n\
427 --ignore-length ignore `Content-Length\' header field.\n\
428 --header=STRING insert STRING among the headers.\n\
429 --proxy-user=USER set USER as proxy username.\n\
430 --proxy-passwd=PASS set PASS as proxy password.\n\
431 --referer=URL include `Referer: URL\' header in HTTP request.\n\
432 -s, --save-headers save the HTTP headers to file.\n\
433 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n\
434 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n\
435 --cookies=off don't use cookies.\n\
436 --load-cookies=FILE load cookies from FILE before session.\n\
437 --save-cookies=FILE save cookies to FILE after session.\n\
438 --keep-session-cookies load and save session (non-permanent) cookies.\n\
439 --post-data=STRING use the POST method; send STRING as the data.\n\
440 --post-file=FILE use the POST method; send contents of FILE.\n\
444 HTTPS (SSL) options:\n\
445 --sslcertfile=FILE optional client certificate.\n\
446 --sslcertkey=KEYFILE optional keyfile for this certificate.\n\
447 --egd-file=FILE file name of the EGD socket.\n\
448 --sslcadir=DIR dir where hash list of CA's are stored.\n\
449 --sslcafile=FILE file with bundle of CA's\n\
450 --sslcerttype=0/1 Client-Cert type 0=PEM (default) / 1=ASN1 (DER)\n\
451 --sslcheckcert=0/1 Check the server cert agenst given CA\n\
452 --sslprotocol=0-3 choose SSL protocol; 0=automatic,\n\
453 1=SSLv2 2=SSLv3 3=TLSv1\n\
458 -nr, --dont-remove-listing don\'t remove `.listing\' files.\n\
459 -g, --glob=on/off turn file name globbing on or off.\n\
460 --passive-ftp use the \"passive\" transfer mode.\n\
461 --retr-symlinks when recursing, get linked-to files (not dirs).\n\
464 Recursive retrieval:\n\
465 -r, --recursive recursive download.\n\
466 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n\
467 --delete-after delete files locally after downloading them.\n\
468 -k, --convert-links convert non-relative links to relative.\n\
469 -K, --backup-converted before converting file X, back up as X.orig.\n\
470 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n\
471 -p, --page-requisites get all images, etc. needed to display HTML page.\n\
472 --strict-comments turn on strict (SGML) handling of HTML comments.\n\
475 Recursive accept/reject:\n\
476 -A, --accept=LIST comma-separated list of accepted extensions.\n\
477 -R, --reject=LIST comma-separated list of rejected extensions.\n\
478 -D, --domains=LIST comma-separated list of accepted domains.\n\
479 --exclude-domains=LIST comma-separated list of rejected domains.\n\
480 --follow-ftp follow FTP links from HTML documents.\n\
481 --follow-tags=LIST comma-separated list of followed HTML tags.\n\
482 -G, --ignore-tags=LIST comma-separated list of ignored HTML tags.\n\
483 -H, --span-hosts go to foreign hosts when recursive.\n\
484 -L, --relative follow relative links only.\n\
485 -I, --include-directories=LIST list of allowed directories.\n\
486 -X, --exclude-directories=LIST list of excluded directories.\n\
487 -np, --no-parent don\'t ascend to the parent directory.\n\
489 fputs (_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n"),
494 main (int argc, char *const *argv)
497 int i, ret, longindex;
499 int append_to_log = 0;
503 /* Construct the name of the executable, without the directory part. */
504 exec_name = strrchr (argv[0], PATH_SEPARATOR);
511 windows_main_junk (&argc, (char **) argv, (char **) &exec_name);
514 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
519 while ((ret = getopt_long (argc, argv,
520 short_options, long_options, &longindex)) != -1)
523 struct cmdline_option *opt;
528 printf (_("Try `%s --help' for more options.\n"), exec_name);
532 /* If LONGINDEX is unchanged, it means RET is referring a short
533 option. Look it up in the mapping table. */
535 longindex = optmap[ret - 32];
536 val = long_options[longindex].val;
538 /* Use the retrieved value to locate the option in the
539 option_data array, and to see if we're dealing with the
540 negated "--no-FOO" variant of the boolean option "--foo". */
541 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
545 setoptval (opt->handle_cmd, optarg);
549 /* The user has specified a value -- use it. */
550 setoptval (opt->handle_cmd, optarg);
553 /* NEG is true for `--no-FOO' style boolean options. */
554 int neg = val & BOOLEAN_NEG_MARKER;
555 setoptval (opt->handle_cmd, neg ? "0" : "1");
558 case OPT__APPEND_OUTPUT:
559 setoptval ("logfile", optarg);
570 run_command (optarg);
574 /* We support real --no-FOO flags now, but keep these
575 short options for convenience and backward
578 for (p = optarg; *p; p++)
582 setoptval ("verbose", "0");
585 setoptval ("addhostdir", "0");
588 setoptval ("dirstruct", "0");
591 setoptval ("noclobber", "1");
594 setoptval ("noparent", "1");
597 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
600 printf (_("Try `%s --help\' for more options.\n"), exec_name);
608 /* The wgetrc commands are named noparent and noclobber,
609 so we must revert the meaning of the cmdline options
610 before passing the value to setoptval. */
613 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
614 || (TOLOWER (optarg[0]) == 'o'
615 && TOLOWER (optarg[1]) == 'n'));
616 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
621 printf ("GNU Wget %s\n\n", version_string);
623 Copyright (C) 2003 Free Software Foundation, Inc.\n"));
625 This program is distributed in the hope that it will be useful,\n\
626 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
627 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
628 GNU General Public License for more details.\n"));
629 printf (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"));
637 /* All user options have now been processed, so it's now safe to do
638 interoption dependency checks. */
640 if (opt.reclevel == 0)
641 opt.reclevel = INFINITE_RECURSION; /* see wget.h for commentary on this */
643 if (opt.page_requisites && !opt.recursive)
645 /* Don't set opt.recursive here because it would confuse the FTP
646 code. Instead, call retrieve_tree below when either
647 page_requisites or recursive is requested. */
649 if (!opt.no_dirstruct)
650 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
653 if (opt.verbose == -1)
654 opt.verbose = !opt.quiet;
657 if (opt.verbose && opt.quiet)
659 printf (_("Can't be verbose and quiet at the same time.\n"));
663 if (opt.timestamping && opt.noclobber)
666 Can't timestamp and not clobber old files at the same time.\n"));
670 nurl = argc - optind;
671 if (!nurl && !opt.input_filename)
673 /* No URL specified. */
674 printf (_("%s: missing URL\n"), exec_name);
677 /* #### Something nicer should be printed here -- similar to the
678 pre-1.5 `--help' page. */
679 printf (_("Try `%s --help' for more options.\n"), exec_name);
684 fork_to_background ();
686 /* Initialize progress. Have to do this after the options are
687 processed so we know where the log file is. */
689 set_progress_implementation (opt.progress_type);
691 /* Fill in the arguments. */
692 url = alloca_array (char *, nurl + 1);
693 for (i = 0; i < nurl; i++, optind++)
695 char *rewritten = rewrite_shorthand_url (argv[optind]);
699 url[i] = xstrdup (argv[optind]);
703 /* Change the title of console window on Windows. #### I think this
704 statement should belong to retrieve_url(). --hniksic. */
706 ws_changetitle (*url, nurl);
709 /* Initialize logging. */
710 log_init (opt.lfilename, append_to_log);
712 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
715 /* Open the output filename if necessary. */
716 if (opt.output_document)
718 if (HYPHENP (opt.output_document))
723 opt.dfp = fopen (opt.output_document, opt.always_rest ? "ab" : "wb");
726 perror (opt.output_document);
729 if (fstat (fileno (opt.dfp), &st) == 0 && S_ISREG (st.st_mode))
730 opt.od_known_regular = 1;
738 /* Setup the signal handler to redirect output when hangup is
741 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
742 signal(SIGHUP, redirect_output_signal);
743 /* ...and do the same for SIGUSR1. */
744 signal (SIGUSR1, redirect_output_signal);
745 /* Writing to a closed socket normally signals SIGPIPE, and the
746 process exits. What we want is to ignore SIGPIPE and just check
747 for the return value of write(). */
748 signal (SIGPIPE, SIG_IGN);
750 signal (SIGWINCH, progress_handle_sigwinch);
752 #endif /* HAVE_SIGNAL */
754 status = RETROK; /* initialize it, just-in-case */
755 /* Retrieve the URLs from argument list. */
756 for (t = url; *t; t++)
758 char *filename = NULL, *redirected_URL = NULL;
761 if ((opt.recursive || opt.page_requisites)
762 && url_scheme (*t) != SCHEME_FTP)
763 status = retrieve_tree (*t);
765 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
767 if (opt.delete_after && file_exists_p(filename))
769 DEBUGP (("Removing file due to --delete-after in main():\n"));
770 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
771 if (unlink (filename))
772 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
775 xfree_null (redirected_URL);
776 xfree_null (filename);
779 /* And then from the input file, if any. */
780 if (opt.input_filename)
783 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
785 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
788 /* Print the downloaded sum. */
789 if (opt.recursive || opt.page_requisites
791 || (opt.input_filename && total_downloaded_bytes != 0))
793 logprintf (LOG_NOTQUIET,
794 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
795 time_str (NULL), legible_large_int (total_downloaded_bytes),
797 /* Print quota warning, if exceeded. */
798 if (opt.quota && total_downloaded_bytes > opt.quota)
799 logprintf (LOG_NOTQUIET,
800 _("Download quota (%s bytes) EXCEEDED!\n"),
801 legible (opt.quota));
804 if (opt.cookies_output && wget_cookie_jar)
805 cookie_jar_save (wget_cookie_jar, opt.cookies_output);
807 if (opt.convert_links && !opt.delete_after)
808 convert_all_links ();
811 for (i = 0; i < nurl; i++)
816 print_malloc_debug_stats ();
818 if (status == RETROK)
825 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
826 will proceed operation as usual, trying to write into a log file.
827 If that is impossible, the output will be turned off.
829 #### It is unsafe to do call libc functions from a signal handler.
830 What we should do is, set a global variable, and have the code in
834 redirect_output_signal (int sig)
836 char *signal_name = (sig == SIGHUP ? "SIGHUP" :
837 (sig == SIGUSR1 ? "SIGUSR1" :
839 log_request_redirect_output (signal_name);
840 progress_schedule_redirect ();
841 signal (sig, redirect_output_signal);
843 #endif /* HAVE_SIGNAL */