1 /* Command line parsing.
2 Copyright (C) 2003 Free Software Foundation, Inc.
4 This file is part of GNU Wget.
6 GNU Wget is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 GNU Wget is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Wget; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 In addition, as a special exception, the Free Software Foundation
21 gives permission to link the code of its release of Wget with the
22 OpenSSL project's "OpenSSL" library (or with modified versions of it
23 that use the same license as the "OpenSSL" library), and distribute
24 the linked executables. You must obey the GNU General Public License
25 in all respects for all of the code used other than "OpenSSL". If you
26 modify this file, you may extend this exception to your version of the
27 file, but you are not obligated to do so. If you do not wish to do
28 so, delete this exception statement from your version. */
36 #endif /* HAVE_UNISTD_H */
37 #include <sys/types.h>
42 #endif /* HAVE_STRING_H */
49 #endif /* HAVE_LOCALE_H */
66 #include "progress.h" /* for progress_handle_sigwinch */
69 /* On GNU system this will include system-wide getopt.h. */
72 #ifndef PATH_SEPARATOR
73 # define PATH_SEPARATOR '/'
78 extern LARGE_INT total_downloaded_bytes;
79 extern char *version_string;
81 extern struct cookie_jar *wget_cookie_jar;
83 static RETSIGTYPE redirect_output_signal PARAMS ((int));
85 const char *exec_name;
87 /* Initialize I18N. The initialization amounts to invoking
88 setlocale(), bindtextdomain() and textdomain().
89 Does nothing if NLS is disabled or missing. */
91 i18n_initialize (void)
93 /* If HAVE_NLS is defined, assume the existence of the three
94 functions invoked here. */
96 /* Set the current locale. */
97 /* Here we use LC_MESSAGES instead of LC_ALL, for two reasons.
98 First, message catalogs are all of I18N Wget uses anyway.
99 Second, setting LC_ALL has a dangerous potential of messing
100 things up. For example, when in a foreign locale, Solaris
101 strptime() fails to handle international dates correctly, which
102 makes http_atotm() malfunction. */
104 setlocale (LC_MESSAGES, "");
105 setlocale (LC_CTYPE, "");
107 setlocale (LC_ALL, "");
109 /* Set the text message domain. */
110 bindtextdomain ("wget", LOCALEDIR);
112 #endif /* HAVE_NLS */
115 /* Definition of command-line options. */
117 static void print_help PARAMS ((void));
118 static void print_version PARAMS ((void));
123 # define IF_SSL(x) NULL
127 # define IF_DEBUG(x) x
129 # define IF_DEBUG(x) NULL
132 struct cmdline_option {
133 const char *long_name;
139 /* Non-standard options that have to be handled specially in
147 void *data; /* for standard options */
148 int argtype; /* for non-standard options */
151 struct cmdline_option option_data[] =
153 { "accept", 'A', OPT_VALUE, "accept", -1 },
154 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
155 { "background", 'b', OPT_BOOLEAN, "background", -1 },
156 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
157 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
158 { "base", 'B', OPT_VALUE, "base", -1 },
159 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
160 { "cache", 'C', OPT_BOOLEAN, "cache", -1 },
161 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
162 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
163 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
164 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
165 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
166 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
167 { IF_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
168 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
169 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
170 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
171 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
172 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
173 { "domains", 'D', OPT_VALUE, "domains", -1 },
174 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
175 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
176 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
177 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
178 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
179 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
180 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
181 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
182 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
183 { "glob", 'g', OPT_BOOLEAN, "glob", -1 },
184 { "header", 0, OPT_VALUE, "header", -1 },
185 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
186 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
187 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
188 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
189 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
190 { "http-passwd", 0, OPT_VALUE, "httppasswd", -1 },
191 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
192 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
193 { "ignore-tags", 'G', OPT_VALUE, "ignoretags", -1 },
194 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
195 { "input-file", 'i', OPT_VALUE, "input", -1 },
196 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
197 { "level", 'l', OPT_VALUE, "reclevel", -1 },
198 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
199 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
200 { "mirror", 'm', OPT_BOOLEAN, NULL, -1 },
201 { "no", 'n', OPT__NO, NULL, required_argument },
202 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
203 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
204 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
205 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
206 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
207 { "parent", 0, OPT__PARENT, NULL, optional_argument },
208 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
209 { "post-data", 0, OPT_VALUE, "postdata", -1 },
210 { "post-file", 0, OPT_VALUE, "postfile", -1 },
211 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
212 { "progress", 0, OPT_VALUE, "progress", -1 },
213 { "proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
214 { "proxy-passwd", 0, OPT_VALUE, "proxypasswd", -1 },
215 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
216 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
217 { "quota", 'Q', OPT_VALUE, "quota", -1 },
218 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
219 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
220 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
221 { "referer", 0, OPT_VALUE, "referer", -1 },
222 { "reject", 'R', OPT_VALUE, "reject", -1 },
223 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
224 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
225 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
226 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
227 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
228 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
229 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
230 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
231 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
232 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
233 { IF_SSL ("sslcadir"), 0, OPT_VALUE, "sslcadir", -1 },
234 { IF_SSL ("sslcafile"), 0, OPT_VALUE, "sslcafile", -1 },
235 { IF_SSL ("sslcertfile"), 0, OPT_VALUE, "sslcertfile", -1 },
236 { IF_SSL ("sslcertkey"), 0, OPT_VALUE, "sslcertkey", -1 },
237 { IF_SSL ("sslcerttype"), 0, OPT_VALUE, "sslcerttype", -1 },
238 { IF_SSL ("sslcheckcert"), 0, OPT_VALUE, "sslcheckcert", -1 },
239 { IF_SSL ("sslprotocol"), 0, OPT_VALUE, "sslprotocol", -1 },
240 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
241 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
242 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
243 { "tries", 't', OPT_VALUE, "tries", -1 },
244 { "use-proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
245 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
246 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
247 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
248 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
249 { "wait", 'w', OPT_VALUE, "wait", -1 },
250 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
256 /* Return a string that contains S with "no-" prepended. The string
257 is NUL-terminated and allocated off static storage at Wget
261 no_prefix (const char *s)
263 static char buffer[1024];
264 static char *p = buffer;
267 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
268 if (p + size >= buffer + sizeof (buffer))
271 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
277 /* The arguments that that main passes to getopt_long. */
278 static struct option long_options[2 * countof (option_data) + 1];
279 static char short_options[128];
281 /* Mapping between short option chars and option_data indices. */
282 static unsigned char optmap[96];
284 /* Marker for `--no-FOO' values in long_options. */
285 #define BOOLEAN_NEG_MARKER 1024
287 /* Initialize the long_options array used by getopt_long from the data
293 char *p = short_options;
295 for (i = 0; i < countof (option_data); i++)
297 struct cmdline_option *opt = &option_data[i];
298 struct option *longopt;
301 /* The option is disabled. */
304 longopt = &long_options[o++];
305 longopt->name = opt->long_name;
309 *p++ = opt->short_name;
310 optmap[opt->short_name - 32] = longopt - long_options;
315 longopt->has_arg = required_argument;
320 /* Don't specify optional arguments for boolean short
321 options. They are evil because they prevent combining of
323 longopt->has_arg = optional_argument;
324 /* For Boolean options, add the "--no-FOO" variant, which is
325 identical to "--foo", except it has opposite meaning and
326 it doesn't allow an argument. */
327 longopt = &long_options[o++];
328 longopt->name = no_prefix (opt->long_name);
329 longopt->has_arg = no_argument;
330 /* Mask the value so we'll be able to recognize that we're
331 dealing with the false value. */
332 longopt->val = i | BOOLEAN_NEG_MARKER;
335 assert (opt->argtype != -1);
336 longopt->has_arg = opt->argtype;
339 if (longopt->has_arg == required_argument)
341 /* Don't handle optional_argument */
345 /* Terminate short_options. */
347 /* No need for xzero(long_options[o]) because its storage is static
348 and it will be zeroed by default. */
349 assert (o <= countof (long_options));
352 /* Print the usage message. */
356 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
359 /* Print the help message, describing all the available options. If
360 you add an option, be sure to update this list. */
364 /* We split the help text this way to ease translation of individual
366 static const char *help[] = {
369 Mandatory arguments to long options are mandatory for short options too.\n\n"),
373 -V, --version display the version of Wget and exit.\n"),
375 -h, --help print this help.\n"),
377 -b, --background go to background after startup.\n"),
379 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
383 Logging and input file:\n"),
385 -o, --output-file=FILE log messages to FILE.\n"),
387 -a, --append-output=FILE append messages to FILE.\n"),
390 -d, --debug print lots of debugging information.\n"),
393 -q, --quiet quiet (no output).\n"),
395 -v, --verbose be verbose (this is the default).\n"),
397 -nv, --non-verbose turn off verboseness, without being quiet.\n"),
399 -i, --input-file=FILE download URLs found in FILE.\n"),
401 -F, --force-html treat input file as HTML.\n"),
403 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
409 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
411 --retry-connrefused retry even if connection is refused.\n"),
413 -O --output-document=FILE write documents to FILE.\n"),
415 -nc, --no-clobber skip downloads that would download to\n\
418 -c, --continue resume getting a partially-downloaded file.\n"),
420 --progress=TYPE select progress gauge type.\n"),
422 -N, --timestamping don't re-retrieve files unless newer than\n\
425 -S, --server-response print server response.\n"),
427 --spider don't download anything.\n"),
429 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
431 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
433 --connect-timeout=SECS set the connect timeout to SECS.\n"),
435 --read-timeout=SECS set the read timeout to SECS.\n"),
437 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
439 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
441 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
443 -Y, --proxy=on/off turn proxy on or off.\n"),
445 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
447 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
449 --limit-rate=RATE limit download rate to RATE.\n"),
451 --dns-cache=off disable caching DNS lookups.\n"),
453 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
459 -nd, --no-directories don't create directories.\n"),
461 -x, --force-directories force creation of directories.\n"),
463 -nH, --no-host-directories don't create host directories.\n"),
465 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
467 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
473 --http-user=USER set http user to USER.\n"),
475 --http-passwd=PASS set http password to PASS.\n"),
477 -C, --no-cache disallow server-cached data.\n"),
479 -E, --html-extension save HTML documents with `.html' extension.\n"),
481 --ignore-length ignore `Content-Length' header field.\n"),
483 --header=STRING insert STRING among the headers.\n"),
485 --proxy-user=USER set USER as proxy username.\n"),
487 --proxy-passwd=PASS set PASS as proxy password.\n"),
489 --referer=URL include `Referer: URL' header in HTTP request.\n"),
491 -s, --save-headers save the HTTP headers to file.\n"),
493 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
495 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
497 --cookies=off don't use cookies.\n"),
499 --load-cookies=FILE load cookies from FILE before session.\n"),
501 --save-cookies=FILE save cookies to FILE after session.\n"),
503 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
505 --post-data=STRING use the POST method; send STRING as the data.\n"),
507 --post-file=FILE use the POST method; send contents of FILE.\n"),
512 HTTPS (SSL) options:\n"),
514 --sslcertfile=FILE optional client certificate.\n"),
516 --sslcertkey=KEYFILE optional keyfile for this certificate.\n"),
518 --egd-file=FILE file name of the EGD socket.\n"),
520 --sslcadir=DIR dir where hash list of CA's are stored.\n"),
522 --sslcafile=FILE file with bundle of CA's\n"),
524 --sslcerttype=0/1 Client-Cert type 0=PEM (default) / 1=ASN1 (DER)\n"),
526 --sslcheckcert=0/1 Check the server cert agenst given CA\n"),
528 --sslprotocol=0-3 choose SSL protocol; 0=automatic,\n"),
530 1=SSLv2 2=SSLv3 3=TLSv1\n"),
532 #endif /* HAVE_SSL */
537 -nr, --no-remove-listing don't remove `.listing' files.\n"),
539 -g, --glob=on/off turn file name globbing on or off.\n"),
541 --passive-ftp use the \"passive\" transfer mode.\n"),
543 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
545 --preserve-permissions preserve remote file permissions.\n"),
549 Recursive retrieval:\n"),
551 -r, --recursive recursive download.\n"),
553 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
555 --delete-after delete files locally after downloading them.\n"),
557 -k, --convert-links convert non-relative links to relative.\n"),
559 -K, --backup-converted before converting file X, back up as X.orig.\n"),
561 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n"),
563 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
565 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
569 Recursive accept/reject:\n"),
571 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
573 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
575 -D, --domains=LIST comma-separated list of accepted domains.\n"),
577 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
579 --follow-ftp follow FTP links from HTML documents.\n"),
581 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
583 -G, --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
585 -H, --span-hosts go to foreign hosts when recursive.\n"),
587 -L, --relative follow relative links only.\n"),
589 -I, --include-directories=LIST list of allowed directories.\n"),
591 -X, --exclude-directories=LIST list of excluded directories.\n"),
593 -np, --no-parent don't ascend to the parent directory.\n"),
596 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
601 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
605 for (i = 0; i < countof (help); i++)
606 fputs (_(help[i]), stdout);
617 printf ("GNU Wget %s\n\n", version_string);
619 Copyright (C) 2003 Free Software Foundation, Inc.\n"), stdout);
621 This program is distributed in the hope that it will be useful,\n\
622 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
623 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
624 GNU General Public License for more details.\n"), stdout);
625 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
631 main (int argc, char *const *argv)
634 int i, ret, longindex;
636 int append_to_log = 0;
640 /* Construct the name of the executable, without the directory part. */
641 exec_name = strrchr (argv[0], PATH_SEPARATOR);
648 windows_main_junk (&argc, (char **) argv, (char **) &exec_name);
651 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
656 while ((ret = getopt_long (argc, argv,
657 short_options, long_options, &longindex)) != -1)
660 struct cmdline_option *opt;
665 printf (_("Try `%s --help' for more options.\n"), exec_name);
669 /* If LONGINDEX is unchanged, it means RET is referring a short
670 option. Look it up in the mapping table. */
672 longindex = optmap[ret - 32];
673 val = long_options[longindex].val;
675 /* Use the retrieved value to locate the option in the
676 option_data array, and to see if we're dealing with the
677 negated "--no-FOO" variant of the boolean option "--foo". */
678 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
682 setoptval (opt->data, optarg);
686 /* The user has specified a value -- use it. */
687 setoptval (opt->data, optarg);
690 /* NEG is true for `--no-FOO' style boolean options. */
691 int neg = val & BOOLEAN_NEG_MARKER;
692 setoptval (opt->data, neg ? "0" : "1");
697 void (*func) PARAMS ((void)) = opt->data;
701 case OPT__APPEND_OUTPUT:
702 setoptval ("logfile", optarg);
706 run_command (optarg);
710 /* We support real --no-FOO flags now, but keep these
711 short options for convenience and backward
714 for (p = optarg; *p; p++)
718 setoptval ("verbose", "0");
721 setoptval ("addhostdir", "0");
724 setoptval ("dirstruct", "0");
727 setoptval ("noclobber", "1");
730 setoptval ("noparent", "1");
733 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
736 printf (_("Try `%s --help' for more options.\n"), exec_name);
744 /* The wgetrc commands are named noparent and noclobber,
745 so we must revert the meaning of the cmdline options
746 before passing the value to setoptval. */
749 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
750 || (TOLOWER (optarg[0]) == 'o'
751 && TOLOWER (optarg[1]) == 'n'));
752 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
761 /* All user options have now been processed, so it's now safe to do
762 interoption dependency checks. */
764 if (opt.reclevel == 0)
765 opt.reclevel = INFINITE_RECURSION; /* see wget.h for commentary on this */
767 if (opt.page_requisites && !opt.recursive)
769 /* Don't set opt.recursive here because it would confuse the FTP
770 code. Instead, call retrieve_tree below when either
771 page_requisites or recursive is requested. */
773 if (!opt.no_dirstruct)
774 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
777 if (opt.verbose == -1)
778 opt.verbose = !opt.quiet;
781 if (opt.verbose && opt.quiet)
783 printf (_("Can't be verbose and quiet at the same time.\n"));
787 if (opt.timestamping && opt.noclobber)
790 Can't timestamp and not clobber old files at the same time.\n"));
794 nurl = argc - optind;
795 if (!nurl && !opt.input_filename)
797 /* No URL specified. */
798 printf (_("%s: missing URL\n"), exec_name);
801 /* #### Something nicer should be printed here -- similar to the
802 pre-1.5 `--help' page. */
803 printf (_("Try `%s --help' for more options.\n"), exec_name);
808 fork_to_background ();
810 /* Initialize progress. Have to do this after the options are
811 processed so we know where the log file is. */
813 set_progress_implementation (opt.progress_type);
815 /* Fill in the arguments. */
816 url = alloca_array (char *, nurl + 1);
817 for (i = 0; i < nurl; i++, optind++)
819 char *rewritten = rewrite_shorthand_url (argv[optind]);
823 url[i] = xstrdup (argv[optind]);
827 /* Change the title of console window on Windows. #### I think this
828 statement should belong to retrieve_url(). --hniksic. */
830 ws_changetitle (*url, nurl);
833 /* Initialize logging. */
834 log_init (opt.lfilename, append_to_log);
836 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
839 /* Open the output filename if necessary. */
840 if (opt.output_document)
842 if (HYPHENP (opt.output_document))
847 opt.dfp = fopen (opt.output_document, opt.always_rest ? "ab" : "wb");
850 perror (opt.output_document);
853 if (fstat (fileno (opt.dfp), &st) == 0 && S_ISREG (st.st_mode))
854 opt.od_known_regular = 1;
862 /* Setup the signal handler to redirect output when hangup is
865 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
866 signal(SIGHUP, redirect_output_signal);
867 /* ...and do the same for SIGUSR1. */
868 signal (SIGUSR1, redirect_output_signal);
869 /* Writing to a closed socket normally signals SIGPIPE, and the
870 process exits. What we want is to ignore SIGPIPE and just check
871 for the return value of write(). */
872 signal (SIGPIPE, SIG_IGN);
874 signal (SIGWINCH, progress_handle_sigwinch);
876 #endif /* HAVE_SIGNAL */
878 status = RETROK; /* initialize it, just-in-case */
879 /* Retrieve the URLs from argument list. */
880 for (t = url; *t; t++)
882 char *filename = NULL, *redirected_URL = NULL;
885 if ((opt.recursive || opt.page_requisites)
886 && url_scheme (*t) != SCHEME_FTP)
887 status = retrieve_tree (*t);
889 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
891 if (opt.delete_after && file_exists_p(filename))
893 DEBUGP (("Removing file due to --delete-after in main():\n"));
894 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
895 if (unlink (filename))
896 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
899 xfree_null (redirected_URL);
900 xfree_null (filename);
903 /* And then from the input file, if any. */
904 if (opt.input_filename)
907 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
909 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
912 /* Print the downloaded sum. */
913 if (opt.recursive || opt.page_requisites
915 || (opt.input_filename && total_downloaded_bytes != 0))
917 logprintf (LOG_NOTQUIET,
918 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
919 time_str (NULL), legible_large_int (total_downloaded_bytes),
921 /* Print quota warning, if exceeded. */
922 if (opt.quota && total_downloaded_bytes > opt.quota)
923 logprintf (LOG_NOTQUIET,
924 _("Download quota (%s bytes) EXCEEDED!\n"),
925 legible (opt.quota));
928 if (opt.cookies_output && wget_cookie_jar)
929 cookie_jar_save (wget_cookie_jar, opt.cookies_output);
931 if (opt.convert_links && !opt.delete_after)
932 convert_all_links ();
935 for (i = 0; i < nurl; i++)
940 print_malloc_debug_stats ();
942 if (status == RETROK)
949 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
950 will proceed operation as usual, trying to write into a log file.
951 If that is impossible, the output will be turned off.
953 #### It is unsafe to do call libc functions from a signal handler.
954 What we should do is, set a global variable, and have the code in
958 redirect_output_signal (int sig)
960 char *signal_name = (sig == SIGHUP ? "SIGHUP" :
961 (sig == SIGUSR1 ? "SIGUSR1" :
963 log_request_redirect_output (signal_name);
964 progress_schedule_redirect ();
965 signal (sig, redirect_output_signal);
967 #endif /* HAVE_SIGNAL */