1 /* Command line parsing.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 2009, 2010 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 3 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, see <http://www.gnu.org/licenses/>.
20 Additional permission under GNU GPL version 3 section 7
22 If you modify this program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a
24 modified version of that library), containing parts covered by the
25 terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
26 grants you additional permission to convey the resulting work.
27 Corresponding Source for a non-source form of such a combination
28 shall include the source code for the parts of OpenSSL used as well
29 as that of the covered work. */
37 #endif /* HAVE_UNISTD_H */
54 #include "progress.h" /* for progress_handle_sigwinch */
57 #include "http.h" /* for save_cookies */
68 #ifndef PATH_SEPARATOR
69 # define PATH_SEPARATOR '/'
74 /* defined in version.c */
75 extern char *version_string;
76 extern char *compilation_string;
77 extern char *system_getrc;
78 extern char *link_string;
79 /* defined in build_info.c */
80 extern const char *compiled_features[];
81 /* Used for --version output in print_version */
82 #define MAX_CHARS_PER_LINE 72
85 #if defined(SIGHUP) || defined(SIGUSR1)
86 static void redirect_output_signal (int);
89 const char *exec_name;
91 /* Number of successfully downloaded URLs */
95 /* Initialize I18N/L10N. That amounts to invoking setlocale, and
96 setting up gettext's message catalog using bindtextdomain and
97 textdomain. Does nothing if NLS is disabled or missing. */
100 i18n_initialize (void)
102 /* ENABLE_NLS implies existence of functions invoked here. */
104 /* Set the current locale. */
105 setlocale (LC_ALL, "");
106 /* Set the text message domain. */
107 bindtextdomain ("wget", LOCALEDIR);
109 #endif /* ENABLE_NLS */
112 /* Definition of command-line options. */
114 static void print_help (void);
115 static void print_version (void);
120 # define IF_SSL(x) NULL
124 # define WHEN_DEBUG(x) x
126 # define WHEN_DEBUG(x) NULL
129 struct cmdline_option {
130 const char *long_name;
136 /* Non-standard options that have to be handled specially in
140 OPT__DONT_REMOVE_LISTING,
145 const void *data; /* for standard options */
146 int argtype; /* for non-standard options */
149 static struct cmdline_option option_data[] =
151 { "accept", 'A', OPT_VALUE, "accept", -1 },
152 { "adjust-extension", 'E', OPT_BOOLEAN, "adjustextension", -1 },
153 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
154 { "ask-password", 0, OPT_BOOLEAN, "askpassword", -1 },
155 { "auth-no-challenge", 0, OPT_BOOLEAN, "authnochallenge", -1 },
156 { "background", 'b', OPT_BOOLEAN, "background", -1 },
157 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
158 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
159 { "base", 'B', OPT_VALUE, "base", -1 },
160 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
161 { IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
162 { IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
163 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
164 { IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
165 { IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
166 { IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
167 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
168 { "config", 0, OPT_VALUE, "chooseconfig", -1 },
169 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
170 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
171 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
172 { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
173 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
174 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
175 { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
176 { "default-page", 0, OPT_VALUE, "defaultpage", -1 },
177 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
178 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
179 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
180 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
181 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
182 { "domains", 'D', OPT_VALUE, "domains", -1 },
183 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
184 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 }, /* deprecated */
185 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
186 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
187 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
188 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
189 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
190 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
191 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
192 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
193 { "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
195 { "ftp-stmlf", 0, OPT_BOOLEAN, "ftpstmlf", -1 },
196 #endif /* def __VMS */
197 { "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
198 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
199 { "header", 0, OPT_VALUE, "header", -1 },
200 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
201 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
202 { "html-extension", 'E', OPT_BOOLEAN, "adjustextension", -1 }, /* deprecated */
203 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
204 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
205 { "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
206 { "http-password", 0, OPT_VALUE, "httppassword", -1 },
207 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
208 { "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
209 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
210 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
211 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
213 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
214 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
216 { "input-file", 'i', OPT_VALUE, "input", -1 },
217 { "iri", 0, OPT_BOOLEAN, "iri", -1 },
218 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
219 { "level", 'l', OPT_VALUE, "reclevel", -1 },
220 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
221 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
222 { "local-encoding", 0, OPT_VALUE, "localencoding", -1 },
223 { "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
224 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
225 { "no", 'n', OPT__NO, NULL, required_argument },
226 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
227 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
228 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
229 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
230 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
231 { "parent", 0, OPT__PARENT, NULL, optional_argument },
232 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
233 { "password", 0, OPT_VALUE, "password", -1 },
234 { "post-data", 0, OPT_VALUE, "postdata", -1 },
235 { "post-file", 0, OPT_VALUE, "postfile", -1 },
236 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
237 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 }, /* deprecated */
238 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
239 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
240 { "progress", 0, OPT_VALUE, "progress", -1 },
241 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
242 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
243 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
244 { "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
245 { "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
246 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
247 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
248 { "quota", 'Q', OPT_VALUE, "quota", -1 },
249 { "random-file", 0, OPT_VALUE, "randomfile", -1 },
250 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
251 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
252 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
253 { "referer", 0, OPT_VALUE, "referer", -1 },
254 { "reject", 'R', OPT_VALUE, "reject", -1 },
255 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
256 { "remote-encoding", 0, OPT_VALUE, "remoteencoding", -1 },
257 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
258 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
259 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
260 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
261 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
262 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
263 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
264 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
265 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
266 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
267 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
268 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
269 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
270 { "tries", 't', OPT_VALUE, "tries", -1 },
271 { "unlink", 0, OPT_BOOLEAN, "unlink", -1 },
272 { "trust-server-names", 0, OPT_BOOLEAN, "trustservernames", -1 },
273 { "use-server-timestamps", 0, OPT_BOOLEAN, "useservertimestamps", -1 },
274 { "user", 0, OPT_VALUE, "user", -1 },
275 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
276 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
277 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
278 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
279 { "wait", 'w', OPT_VALUE, "wait", -1 },
280 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
282 { "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
289 /* Return a string that contains S with "no-" prepended. The string
290 is NUL-terminated and allocated off static storage at Wget
294 no_prefix (const char *s)
296 static char buffer[1024];
297 static char *p = buffer;
300 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
301 if (p + size >= buffer + sizeof (buffer))
304 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
310 /* The arguments that that main passes to getopt_long. */
311 static struct option long_options[2 * countof (option_data) + 1];
312 static char short_options[128];
314 /* Mapping between short option chars and option_data indices. */
315 static unsigned char optmap[96];
317 /* Marker for `--no-FOO' values in long_options. */
318 #define BOOLEAN_NEG_MARKER 1024
320 /* Initialize the long_options array used by getopt_long from the data
326 char *p = short_options;
328 for (i = 0; i < countof (option_data); i++)
330 struct cmdline_option *opt = &option_data[i];
331 struct option *longopt;
334 /* The option is disabled. */
337 longopt = &long_options[o++];
338 longopt->name = opt->long_name;
342 *p++ = opt->short_name;
343 optmap[opt->short_name - 32] = longopt - long_options;
348 longopt->has_arg = required_argument;
353 /* Specify an optional argument for long options, so that
354 --option=off works the same as --no-option, for
355 compatibility with pre-1.10 Wget. However, don't specify
356 optional arguments short-option booleans because they
357 prevent combining of short options. */
358 longopt->has_arg = optional_argument;
359 /* For Boolean options, add the "--no-FOO" variant, which is
360 identical to "--foo", except it has opposite meaning and
361 it doesn't allow an argument. */
362 longopt = &long_options[o++];
363 longopt->name = no_prefix (opt->long_name);
364 longopt->has_arg = no_argument;
365 /* Mask the value so we'll be able to recognize that we're
366 dealing with the false value. */
367 longopt->val = i | BOOLEAN_NEG_MARKER;
370 assert (opt->argtype != -1);
371 longopt->has_arg = opt->argtype;
374 if (longopt->has_arg == required_argument)
376 /* Don't handle optional_argument */
380 /* Terminate short_options. */
382 /* No need for xzero(long_options[o]) because its storage is static
383 and it will be zeroed by default. */
384 assert (o <= countof (long_options));
387 /* Print the usage message. */
389 print_usage (int error)
391 fprintf (error ? stderr : stdout, _("Usage: %s [OPTION]... [URL]...\n"),
395 /* Print the help message, describing all the available options. If
396 you add an option, be sure to update this list. */
400 /* We split the help text this way to ease translation of individual
402 static const char *help[] = {
405 Mandatory arguments to long options are mandatory for short options too.\n\n"),
409 -V, --version display the version of Wget and exit.\n"),
411 -h, --help print this help.\n"),
413 -b, --background go to background after startup.\n"),
415 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
419 Logging and input file:\n"),
421 -o, --output-file=FILE log messages to FILE.\n"),
423 -a, --append-output=FILE append messages to FILE.\n"),
426 -d, --debug print lots of debugging information.\n"),
430 --wdebug print Watt-32 debug output.\n"),
433 -q, --quiet quiet (no output).\n"),
435 -v, --verbose be verbose (this is the default).\n"),
437 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
439 -i, --input-file=FILE download URLs found in local or external FILE.\n"),
441 -F, --force-html treat input file as HTML.\n"),
443 -B, --base=URL resolves HTML input-file links (-i -F)\n\
444 relative to URL.\n"),
446 --config=FILE Specify config file to use.\n"),
452 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
454 --retry-connrefused retry even if connection is refused.\n"),
456 -O, --output-document=FILE write documents to FILE.\n"),
458 -nc, --no-clobber skip downloads that would download to\n\
461 -c, --continue resume getting a partially-downloaded file.\n"),
463 --progress=TYPE select progress gauge type.\n"),
465 -N, --timestamping don't re-retrieve files unless newer than\n\
468 --no-use-server-timestamps don't set the local file's timestamp by\n\
469 the one on the server.\n"),
471 -S, --server-response print server response.\n"),
473 --spider don't download anything.\n"),
475 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
477 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
479 --connect-timeout=SECS set the connect timeout to SECS.\n"),
481 --read-timeout=SECS set the read timeout to SECS.\n"),
483 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
485 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
487 --random-wait wait from 0.5*WAIT...1.5*WAIT secs between retrievals.\n"),
489 --no-proxy explicitly turn off proxy.\n"),
491 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
493 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
495 --limit-rate=RATE limit download rate to RATE.\n"),
497 --no-dns-cache disable caching DNS lookups.\n"),
499 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
501 --ignore-case ignore case when matching files/directories.\n"),
504 -4, --inet4-only connect only to IPv4 addresses.\n"),
506 -6, --inet6-only connect only to IPv6 addresses.\n"),
508 --prefer-family=FAMILY connect first to addresses of specified family,\n\
509 one of IPv6, IPv4, or none.\n"),
512 --user=USER set both ftp and http user to USER.\n"),
514 --password=PASS set both ftp and http password to PASS.\n"),
516 --ask-password prompt for passwords.\n"),
518 --no-iri turn off IRI support.\n"),
520 --local-encoding=ENC use ENC as the local encoding for IRIs.\n"),
522 --remote-encoding=ENC use ENC as the default remote encoding.\n"),
524 --unlink remove file before clobber.\n"),
530 -nd, --no-directories don't create directories.\n"),
532 -x, --force-directories force creation of directories.\n"),
534 -nH, --no-host-directories don't create host directories.\n"),
536 --protocol-directories use protocol name in directories.\n"),
538 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
540 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
546 --http-user=USER set http user to USER.\n"),
548 --http-password=PASS set http password to PASS.\n"),
550 --no-cache disallow server-cached data.\n"),
552 --default-page=NAME Change the default page name (normally\n\
553 this is `index.html'.).\n"),
555 -E, --adjust-extension save HTML/CSS documents with proper extensions.\n"),
557 --ignore-length ignore `Content-Length' header field.\n"),
559 --header=STRING insert STRING among the headers.\n"),
561 --max-redirect maximum redirections allowed per page.\n"),
563 --proxy-user=USER set USER as proxy username.\n"),
565 --proxy-password=PASS set PASS as proxy password.\n"),
567 --referer=URL include `Referer: URL' header in HTTP request.\n"),
569 --save-headers save the HTTP headers to file.\n"),
571 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
573 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
575 --no-cookies don't use cookies.\n"),
577 --load-cookies=FILE load cookies from FILE before session.\n"),
579 --save-cookies=FILE save cookies to FILE after session.\n"),
581 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
583 --post-data=STRING use the POST method; send STRING as the data.\n"),
585 --post-file=FILE use the POST method; send contents of FILE.\n"),
587 --content-disposition honor the Content-Disposition header when\n\
588 choosing local file names (EXPERIMENTAL).\n"),
590 --auth-no-challenge send Basic HTTP authentication information\n\
591 without first waiting for the server's\n\
597 HTTPS (SSL/TLS) options:\n"),
599 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
600 SSLv3, and TLSv1.\n"),
602 --no-check-certificate don't validate the server's certificate.\n"),
604 --certificate=FILE client certificate file.\n"),
606 --certificate-type=TYPE client certificate type, PEM or DER.\n"),
608 --private-key=FILE private key file.\n"),
610 --private-key-type=TYPE private key type, PEM or DER.\n"),
612 --ca-certificate=FILE file with the bundle of CA's.\n"),
614 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
616 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
618 --egd-file=FILE file naming the EGD socket with random data.\n"),
620 #endif /* HAVE_SSL */
626 --ftp-stmlf Use Stream_LF format for all binary FTP files.\n"),
627 #endif /* def __VMS */
629 --ftp-user=USER set ftp user to USER.\n"),
631 --ftp-password=PASS set ftp password to PASS.\n"),
633 --no-remove-listing don't remove `.listing' files.\n"),
635 --no-glob turn off FTP file name globbing.\n"),
637 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
639 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
643 Recursive download:\n"),
645 -r, --recursive specify recursive download.\n"),
647 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
649 --delete-after delete files locally after downloading them.\n"),
651 -k, --convert-links make links in downloaded HTML or CSS point to\n\
655 -K, --backup-converted before converting file X, back up as X_orig.\n"),
656 #else /* def __VMS */
658 -K, --backup-converted before converting file X, back up as X.orig.\n"),
659 #endif /* def __VMS [else] */
661 -m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
663 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
665 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
669 Recursive accept/reject:\n"),
671 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
673 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
675 -D, --domains=LIST comma-separated list of accepted domains.\n"),
677 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
679 --follow-ftp follow FTP links from HTML documents.\n"),
681 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
683 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
685 -H, --span-hosts go to foreign hosts when recursive.\n"),
687 -L, --relative follow relative links only.\n"),
689 -I, --include-directories=LIST list of allowed directories.\n"),
691 --trust-server-names use the name specified by the redirection\n\
692 url last component.\n"),
694 -X, --exclude-directories=LIST list of excluded directories.\n"),
696 -np, --no-parent don't ascend to the parent directory.\n"),
699 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
704 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
708 for (i = 0; i < countof (help); i++)
709 fputs (_(help[i]), stdout);
714 /* Return a human-readable printed representation of INTERVAL,
715 measured in seconds. */
718 secs_to_human_time (double interval)
721 int secs = (int) (interval + 0.5);
722 int hours, mins, days;
724 days = secs / 86400, secs %= 86400;
725 hours = secs / 3600, secs %= 3600;
726 mins = secs / 60, secs %= 60;
729 sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
731 sprintf (buf, "%dh %dm %ds", hours, mins, secs);
733 sprintf (buf, "%dm %ds", mins, secs);
735 sprintf (buf, "%ss", print_decimal (interval));
741 prompt_for_password (void)
744 printf (_("Password for user %s: "), quote (opt.user));
746 printf (_("Password: "));
750 /* Function that prints the line argument while limiting it
751 to at most line_length. prefix is printed on the first line
752 and an appropriate number of spaces are added on subsequent
755 format_and_print_line (const char *prefix, const char *line,
759 char *line_dup, *token;
761 assert (prefix != NULL);
762 assert (line != NULL);
764 line_dup = xstrdup (line);
766 if (line_length <= 0)
767 line_length = MAX_CHARS_PER_LINE - TABULATION;
769 printf ("%s", prefix);
770 remaining_chars = line_length;
771 /* We break on spaces. */
772 token = strtok (line_dup, " ");
773 while (token != NULL)
775 /* If however a token is much larger than the maximum
776 line length, all bets are off and we simply print the
777 token on the next line. */
778 if (remaining_chars <= strlen (token))
780 printf ("\n%*c", TABULATION, ' ');
781 remaining_chars = line_length - TABULATION;
783 printf ("%s ", token);
784 remaining_chars -= strlen (token) + 1; /* account for " " */
785 token = strtok (NULL, " ");
796 const char *wgetrc_title = _("Wgetrc: ");
797 const char *locale_title = _("Locale: ");
798 const char *compile_title = _("Compile: ");
799 const char *link_title = _("Link: ");
800 char *env_wgetrc, *user_wgetrc;
803 printf (_("GNU Wget %s built on %s.\n\n"), version_string, OS_TYPE);
805 for (i = 0; compiled_features[i] != NULL; )
807 int line_length = MAX_CHARS_PER_LINE;
808 while ((line_length > 0) && (compiled_features[i] != NULL))
810 printf ("%s ", compiled_features[i]);
811 line_length -= strlen (compiled_features[i]) + 2;
818 /* Handle the case when $WGETRC is unset and $HOME/.wgetrc is
820 printf ("%s\n", wgetrc_title);
821 env_wgetrc = wgetrc_env_file_name ();
822 if (env_wgetrc && *env_wgetrc)
824 printf (_(" %s (env)\n"), env_wgetrc);
827 user_wgetrc = wgetrc_user_file_name ();
830 printf (_(" %s (user)\n"), user_wgetrc);
834 printf (_(" %s (system)\n"), SYSTEM_WGETRC);
838 format_and_print_line (locale_title,
841 #endif /* def ENABLE_NLS */
843 if (compilation_string != NULL)
844 format_and_print_line (compile_title,
848 if (link_string != NULL)
849 format_and_print_line (link_title,
854 /* TRANSLATORS: When available, an actual copyright character
855 (cirle-c) should be used in preference to "(C)". */
857 Copyright (C) 2009 Free Software Foundation, Inc.\n"), stdout);
859 License GPLv3+: GNU GPL version 3 or later\n\
860 <http://www.gnu.org/licenses/gpl.html>.\n\
861 This is free software: you are free to change and redistribute it.\n\
862 There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
863 /* TRANSLATORS: When available, please use the proper diacritics for
864 names such as this one. See en_US.po for reference. */
865 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
867 fputs (_("Please send bug reports and questions to <bug-wget@gnu.org>.\n"),
872 char *program_name; /* Needed by lib/error.c. */
875 main (int argc, char **argv)
878 int i, ret, longindex;
880 bool append_to_log = false;
882 program_name = argv[0];
884 struct ptimer *timer = ptimer_new ();
885 double start_time = ptimer_measure (timer);
889 /* Construct the name of the executable, without the directory part. */
891 /* On VMS, lose the "dev:[dir]" prefix and the ".EXE;nnn" suffix. */
892 exec_name = vms_basename (argv[0]);
893 #else /* def __VMS */
894 exec_name = strrchr (argv[0], PATH_SEPARATOR);
899 #endif /* def __VMS [else] */
902 /* Drop extension (typically .EXE) from executable filename. */
903 windows_main ((char **) &exec_name);
906 /* Load the hard-coded defaults. */
911 /* This seperate getopt_long is needed to find the user config
912 and parse it before the other user options. */
915 bool use_userconfig = false;
917 while ((retconf = getopt_long (argc, argv,
918 short_options, long_options, &longindex)) != -1)
921 bool userrc_ret = true;
922 struct cmdline_option *config_opt;
923 confval = long_options[longindex].val;
924 config_opt = &option_data[confval & ~BOOLEAN_NEG_MARKER];
925 if (strcmp (config_opt->long_name, "config") == 0)
927 userrc_ret &= run_wgetrc (optarg);
928 use_userconfig = true;
932 printf ("Exiting due to error in %s\n", optarg);
939 /* If the user did not specify a config, read the system wgetrc and ~/.wgetrc. */
940 if (use_userconfig == false)
947 while ((ret = getopt_long (argc, argv,
948 short_options, long_options, &longindex)) != -1)
951 struct cmdline_option *opt;
953 /* If LONGINDEX is unchanged, it means RET is referring a short
961 printf (_("Try `%s --help' for more options.\n"), exec_name);
964 /* Find the short option character in the mapping. */
965 longindex = optmap[ret - 32];
967 val = long_options[longindex].val;
969 /* Use the retrieved value to locate the option in the
970 option_data array, and to see if we're dealing with the
971 negated "--no-FOO" variant of the boolean option "--foo". */
972 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
976 setoptval (opt->data, optarg, opt->long_name);
980 /* The user has specified a value -- use it. */
981 setoptval (opt->data, optarg, opt->long_name);
984 /* NEG is true for `--no-FOO' style boolean options. */
985 bool neg = !!(val & BOOLEAN_NEG_MARKER);
986 setoptval (opt->data, neg ? "0" : "1", opt->long_name);
991 void (*func) (void) = (void (*) (void)) opt->data;
995 case OPT__APPEND_OUTPUT:
996 setoptval ("logfile", optarg, opt->long_name);
997 append_to_log = true;
1000 run_command (optarg);
1004 /* We support real --no-FOO flags now, but keep these
1005 short options for convenience and backward
1008 for (p = optarg; p && *p; p++)
1012 setoptval ("verbose", "0", opt->long_name);
1015 setoptval ("addhostdir", "0", opt->long_name);
1018 setoptval ("dirstruct", "0", opt->long_name);
1021 setoptval ("noclobber", "1", opt->long_name);
1024 setoptval ("noparent", "1", opt->long_name);
1027 fprintf (stderr, _("%s: illegal option -- `-n%c'\n"),
1030 fprintf (stderr, "\n");
1031 fprintf (stderr, _("Try `%s --help' for more options.\n"),
1040 /* The wgetrc commands are named noparent and noclobber,
1041 so we must revert the meaning of the cmdline options
1042 before passing the value to setoptval. */
1045 flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
1046 || (c_tolower (optarg[0]) == 'o'
1047 && c_tolower (optarg[1]) == 'n'));
1048 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
1049 flag ? "0" : "1", opt->long_name);
1052 case OPT__DONT_REMOVE_LISTING:
1053 setoptval ("removelisting", "0", opt->long_name);
1060 nurl = argc - optind;
1062 /* All user options have now been processed, so it's now safe to do
1063 interoption dependency checks. */
1065 if (opt.reclevel == 0)
1066 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
1068 if (opt.spider || opt.delete_after)
1069 opt.no_dirstruct = true;
1071 if (opt.page_requisites && !opt.recursive)
1073 /* Don't set opt.recursive here because it would confuse the FTP
1074 code. Instead, call retrieve_tree below when either
1075 page_requisites or recursive is requested. */
1077 if (!opt.no_dirstruct)
1078 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
1081 if (opt.verbose == -1)
1082 opt.verbose = !opt.quiet;
1084 /* Sanity checks. */
1085 if (opt.verbose && opt.quiet)
1087 fprintf (stderr, _("Can't be verbose and quiet at the same time.\n"));
1091 if (opt.timestamping && opt.noclobber)
1093 fprintf (stderr, _("\
1094 Can't timestamp and not clobber old files at the same time.\n"));
1099 if (opt.ipv4_only && opt.ipv6_only)
1102 _("Cannot specify both --inet4-only and --inet6-only.\n"));
1107 if (opt.output_document)
1109 if (opt.convert_links
1110 && (nurl > 1 || opt.page_requisites || opt.recursive))
1113 Cannot specify both -k and -O if multiple URLs are given, or in combination\n\
1114 with -p or -r. See the manual for details.\n\n"), stderr);
1118 if (opt.page_requisites
1121 logprintf (LOG_NOTQUIET, "%s", _("\
1122 WARNING: combining -O with -r or -p will mean that all downloaded content\n\
1123 will be placed in the single file you specified.\n\n"));
1125 if (opt.timestamping)
1127 logprintf (LOG_NOTQUIET, "%s", _("\
1128 WARNING: timestamping does nothing in combination with -O. See the manual\n\
1129 for details.\n\n"));
1130 opt.timestamping = false;
1132 if (opt.noclobber && file_exists_p(opt.output_document))
1134 /* Check if output file exists; if it does, exit. */
1135 logprintf (LOG_VERBOSE,
1136 _("File `%s' already there; not retrieving.\n"),
1137 opt.output_document);
1142 if (opt.ask_passwd && opt.passwd)
1145 _("Cannot specify both --ask-password and --password.\n"));
1150 if (!nurl && !opt.input_filename)
1152 /* No URL specified. */
1153 fprintf (stderr, _("%s: missing URL\n"), exec_name);
1156 /* #### Something nicer should be printed here -- similar to the
1157 pre-1.5 `--help' page. */
1158 fprintf (stderr, _("Try `%s --help' for more options.\n"), exec_name);
1165 if (opt.locale && !check_encoding_name (opt.locale))
1169 opt.locale = find_locale ();
1171 if (opt.encoding_remote && !check_encoding_name (opt.encoding_remote))
1172 opt.encoding_remote = NULL;
1175 if (opt.enable_iri || opt.locale || opt.encoding_remote)
1177 /* sXXXav : be more specific... */
1178 fprintf (stderr, _("This version does not have support for IRIs\n"));
1185 opt.passwd = prompt_for_password ();
1187 if (opt.passwd == NULL || opt.passwd[0] == '\0')
1197 fork_to_background ();
1200 /* Initialize progress. Have to do this after the options are
1201 processed so we know where the log file is. */
1203 set_progress_implementation (opt.progress_type);
1205 /* Fill in the arguments. */
1206 url = alloca_array (char *, nurl + 1);
1207 for (i = 0; i < nurl; i++, optind++)
1209 char *rewritten = rewrite_shorthand_url (argv[optind]);
1213 url[i] = xstrdup (argv[optind]);
1217 /* Initialize logging. */
1218 log_init (opt.lfilename, append_to_log);
1220 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n",
1221 version_string, OS_TYPE));
1223 /* Open the output filename if necessary. */
1226 Note that having the output_stream ("-O") file opened here for an FTP
1227 URL rather than in getftp() (ftp.c) (and the http equivalent) rather
1228 limits the ability in VMS to open the file differently for ASCII
1229 versus binary FTP there. (Of course, doing it here allows a open
1230 failure to be detected immediately, without first connecting to the
1233 if (opt.output_document)
1235 if (HYPHENP (opt.output_document))
1239 result = freopen ("CONOUT$", "wb", stdout);
1242 logputs (LOG_NOTQUIET, _("\
1243 WARNING: Can't reopen standard output in binary mode;\n\
1244 downloaded file may contain inappropriate line endings.\n"));
1247 output_stream = stdout;
1254 /* Common fopen() optional arguments:
1255 sequential access only, access callback function.
1257 # define FOPEN_OPT_ARGS , "fop=sqo", "acc", acc_cb, &open_id
1259 #else /* def __VMS */
1260 # define FOPEN_OPT_ARGS
1261 #endif /* def __VMS [else] */
1263 output_stream = fopen (opt.output_document,
1264 opt.always_rest ? "ab" : "wb"
1266 if (output_stream == NULL)
1268 perror (opt.output_document);
1271 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
1272 output_stream_regular = true;
1274 if (!output_stream_regular && opt.convert_links)
1276 fprintf (stderr, _("-k can be used together with -O only if \
1277 outputting to a regular file.\n"));
1284 /* Set global ODS5 flag according to the specified destination (if
1285 any), otherwise according to the current default device.
1287 if (output_stream == NULL)
1288 set_ods5_dest( "SYS$DISK");
1289 else if (output_stream != stdout)
1290 set_ods5_dest( opt.output_document);
1291 #endif /* def __VMS */
1298 /* Setup the signal handler to redirect output when hangup is
1300 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1301 signal(SIGHUP, redirect_output_signal);
1303 /* ...and do the same for SIGUSR1. */
1305 signal (SIGUSR1, redirect_output_signal);
1308 /* Writing to a closed socket normally signals SIGPIPE, and the
1309 process exits. What we want is to ignore SIGPIPE and just check
1310 for the return value of write(). */
1311 signal (SIGPIPE, SIG_IGN);
1314 signal (SIGWINCH, progress_handle_sigwinch);
1317 /* Retrieve the URLs from argument list. */
1318 for (t = url; *t; t++)
1320 char *filename = NULL, *redirected_URL = NULL;
1322 /* Need to do a new struct iri every time, because
1323 * retrieve_url may modify it in some circumstances,
1325 struct iri *iri = iri_new ();
1326 struct url *url_parsed;
1328 set_uri_encoding (iri, opt.locale, true);
1329 url_parsed = url_parse (*t, &url_err, iri, true);
1333 char *error = url_error (*t, url_err);
1334 logprintf (LOG_NOTQUIET, "%s: %s.\n",*t, error);
1339 if ((opt.recursive || opt.page_requisites)
1340 && (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (url_parsed)))
1342 int old_follow_ftp = opt.follow_ftp;
1344 /* Turn opt.follow_ftp on in case of recursive FTP retrieval */
1345 if (url_scheme (*t) == SCHEME_FTP)
1348 retrieve_tree (url_parsed, NULL);
1350 opt.follow_ftp = old_follow_ftp;
1354 retrieve_url (url_parsed, *t, &filename, &redirected_URL, NULL,
1355 &dt, opt.recursive, iri, true);
1358 if (opt.delete_after && file_exists_p(filename))
1360 DEBUGP (("Removing file due to --delete-after in main():\n"));
1361 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
1362 if (unlink (filename))
1363 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1365 xfree_null (redirected_URL);
1366 xfree_null (filename);
1367 url_free (url_parsed);
1372 /* And then from the input file, if any. */
1373 if (opt.input_filename)
1376 retrieve_from_file (opt.input_filename, opt.force_html, &count);
1378 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
1379 opt.input_filename);
1382 /* Print broken links. */
1383 if (opt.recursive && opt.spider)
1384 print_broken_links ();
1386 /* Print the downloaded sum. */
1387 if ((opt.recursive || opt.page_requisites
1389 || (opt.input_filename && total_downloaded_bytes != 0))
1391 total_downloaded_bytes != 0)
1393 double end_time = ptimer_measure (timer);
1394 ptimer_destroy (timer);
1396 char *wall_time = xstrdup (secs_to_human_time (end_time - start_time));
1397 char *download_time = xstrdup (secs_to_human_time (total_download_time));
1398 logprintf (LOG_NOTQUIET,
1399 _("FINISHED --%s--\nTotal wall clock time: %s\n"
1400 "Downloaded: %d files, %s in %s (%s)\n"),
1401 datetime_str (time (NULL)),
1404 human_readable (total_downloaded_bytes),
1406 retr_rate (total_downloaded_bytes, total_download_time));
1408 xfree (download_time);
1410 /* Print quota warning, if exceeded. */
1411 if (opt.quota && total_downloaded_bytes > opt.quota)
1412 logprintf (LOG_NOTQUIET,
1413 _("Download quota of %s EXCEEDED!\n"),
1414 human_readable (opt.quota));
1417 if (opt.cookies_output)
1420 if (opt.convert_links && !opt.delete_after)
1421 convert_all_links ();
1424 for (i = 0; i < nurl; i++)
1428 return get_exit_status ();
1430 #endif /* TESTING */
1432 #if defined(SIGHUP) || defined(SIGUSR1)
1434 /* So the signal_name check doesn't blow when only one is available. */
1442 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
1443 will proceed operation as usual, trying to write into a log file.
1444 If that is impossible, the output will be turned off. */
1447 redirect_output_signal (int sig)
1449 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1450 (sig == SIGUSR1 ? "SIGUSR1" :
1452 log_request_redirect_output (signal_name);
1453 progress_schedule_redirect ();
1454 signal (sig, redirect_output_signal);