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 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
169 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
170 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
171 { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
172 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
173 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
174 { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
175 { "default-page", 0, OPT_VALUE, "defaultpage", -1 },
176 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
177 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
178 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
179 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
180 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
181 { "domains", 'D', OPT_VALUE, "domains", -1 },
182 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
183 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 }, /* deprecated */
184 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
185 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
186 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
187 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
188 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
189 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
190 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
191 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
192 { "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
194 { "ftp-stmlf", 0, OPT_BOOLEAN, "ftpstmlf", -1 },
195 #endif /* def __VMS */
196 { "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
197 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
198 { "header", 0, OPT_VALUE, "header", -1 },
199 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
200 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
201 { "html-extension", 'E', OPT_BOOLEAN, "adjustextension", -1 }, /* deprecated */
202 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
203 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
204 { "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
205 { "http-password", 0, OPT_VALUE, "httppassword", -1 },
206 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
207 { "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
208 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
209 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
210 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
212 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
213 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
215 { "input-file", 'i', OPT_VALUE, "input", -1 },
216 { "iri", 0, OPT_BOOLEAN, "iri", -1 },
217 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
218 { "level", 'l', OPT_VALUE, "reclevel", -1 },
219 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
220 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
221 { "local-encoding", 0, OPT_VALUE, "localencoding", -1 },
222 { "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
223 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
224 { "no", 'n', OPT__NO, NULL, required_argument },
225 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
226 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
227 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
228 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
229 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
230 { "parent", 0, OPT__PARENT, NULL, optional_argument },
231 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
232 { "password", 0, OPT_VALUE, "password", -1 },
233 { "post-data", 0, OPT_VALUE, "postdata", -1 },
234 { "post-file", 0, OPT_VALUE, "postfile", -1 },
235 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
236 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 }, /* deprecated */
237 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
238 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
239 { "progress", 0, OPT_VALUE, "progress", -1 },
240 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
241 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
242 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
243 { "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
244 { "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
245 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
246 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
247 { "quota", 'Q', OPT_VALUE, "quota", -1 },
248 { "random-file", 0, OPT_VALUE, "randomfile", -1 },
249 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
250 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
251 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
252 { "referer", 0, OPT_VALUE, "referer", -1 },
253 { "reject", 'R', OPT_VALUE, "reject", -1 },
254 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
255 { "remote-encoding", 0, OPT_VALUE, "remoteencoding", -1 },
256 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
257 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
258 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
259 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
260 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
261 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
262 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
263 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
264 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
265 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
266 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
267 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
268 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
269 { "tries", 't', OPT_VALUE, "tries", -1 },
270 { "unlink", 0, OPT_BOOLEAN, "unlink", -1 },
271 { "trust-server-names", 0, OPT_BOOLEAN, "trustservernames", -1 },
272 { "use-server-timestamps", 0, OPT_BOOLEAN, "useservertimestamps", -1 },
273 { "user", 0, OPT_VALUE, "user", -1 },
274 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
275 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
276 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
277 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
278 { "wait", 'w', OPT_VALUE, "wait", -1 },
279 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
281 { "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
288 /* Return a string that contains S with "no-" prepended. The string
289 is NUL-terminated and allocated off static storage at Wget
293 no_prefix (const char *s)
295 static char buffer[1024];
296 static char *p = buffer;
299 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
300 if (p + size >= buffer + sizeof (buffer))
303 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
309 /* The arguments that that main passes to getopt_long. */
310 static struct option long_options[2 * countof (option_data) + 1];
311 static char short_options[128];
313 /* Mapping between short option chars and option_data indices. */
314 static unsigned char optmap[96];
316 /* Marker for `--no-FOO' values in long_options. */
317 #define BOOLEAN_NEG_MARKER 1024
319 /* Initialize the long_options array used by getopt_long from the data
325 char *p = short_options;
327 for (i = 0; i < countof (option_data); i++)
329 struct cmdline_option *opt = &option_data[i];
330 struct option *longopt;
333 /* The option is disabled. */
336 longopt = &long_options[o++];
337 longopt->name = opt->long_name;
341 *p++ = opt->short_name;
342 optmap[opt->short_name - 32] = longopt - long_options;
347 longopt->has_arg = required_argument;
352 /* Specify an optional argument for long options, so that
353 --option=off works the same as --no-option, for
354 compatibility with pre-1.10 Wget. However, don't specify
355 optional arguments short-option booleans because they
356 prevent combining of short options. */
357 longopt->has_arg = optional_argument;
358 /* For Boolean options, add the "--no-FOO" variant, which is
359 identical to "--foo", except it has opposite meaning and
360 it doesn't allow an argument. */
361 longopt = &long_options[o++];
362 longopt->name = no_prefix (opt->long_name);
363 longopt->has_arg = no_argument;
364 /* Mask the value so we'll be able to recognize that we're
365 dealing with the false value. */
366 longopt->val = i | BOOLEAN_NEG_MARKER;
369 assert (opt->argtype != -1);
370 longopt->has_arg = opt->argtype;
373 if (longopt->has_arg == required_argument)
375 /* Don't handle optional_argument */
379 /* Terminate short_options. */
381 /* No need for xzero(long_options[o]) because its storage is static
382 and it will be zeroed by default. */
383 assert (o <= countof (long_options));
386 /* Print the usage message. */
388 print_usage (int error)
390 fprintf (error ? stderr : stdout, _("Usage: %s [OPTION]... [URL]...\n"),
394 /* Print the help message, describing all the available options. If
395 you add an option, be sure to update this list. */
399 /* We split the help text this way to ease translation of individual
401 static const char *help[] = {
404 Mandatory arguments to long options are mandatory for short options too.\n\n"),
408 -V, --version display the version of Wget and exit.\n"),
410 -h, --help print this help.\n"),
412 -b, --background go to background after startup.\n"),
414 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
418 Logging and input file:\n"),
420 -o, --output-file=FILE log messages to FILE.\n"),
422 -a, --append-output=FILE append messages to FILE.\n"),
425 -d, --debug print lots of debugging information.\n"),
429 --wdebug print Watt-32 debug output.\n"),
432 -q, --quiet quiet (no output).\n"),
434 -v, --verbose be verbose (this is the default).\n"),
436 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
438 -i, --input-file=FILE download URLs found in local or external FILE.\n"),
440 -F, --force-html treat input file as HTML.\n"),
442 -B, --base=URL resolves HTML input-file links (-i -F)\n\
443 relative to URL.\n"),
449 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
451 --retry-connrefused retry even if connection is refused.\n"),
453 -O, --output-document=FILE write documents to FILE.\n"),
455 -nc, --no-clobber skip downloads that would download to\n\
458 -c, --continue resume getting a partially-downloaded file.\n"),
460 --progress=TYPE select progress gauge type.\n"),
462 -N, --timestamping don't re-retrieve files unless newer than\n\
465 --no-use-server-timestamps don't set the local file's timestamp by\n\
466 the one on the server.\n"),
468 -S, --server-response print server response.\n"),
470 --spider don't download anything.\n"),
472 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
474 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
476 --connect-timeout=SECS set the connect timeout to SECS.\n"),
478 --read-timeout=SECS set the read timeout to SECS.\n"),
480 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
482 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
484 --random-wait wait from 0.5*WAIT...1.5*WAIT secs between retrievals.\n"),
486 --no-proxy explicitly turn off proxy.\n"),
488 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
490 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
492 --limit-rate=RATE limit download rate to RATE.\n"),
494 --no-dns-cache disable caching DNS lookups.\n"),
496 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
498 --ignore-case ignore case when matching files/directories.\n"),
501 -4, --inet4-only connect only to IPv4 addresses.\n"),
503 -6, --inet6-only connect only to IPv6 addresses.\n"),
505 --prefer-family=FAMILY connect first to addresses of specified family,\n\
506 one of IPv6, IPv4, or none.\n"),
509 --user=USER set both ftp and http user to USER.\n"),
511 --password=PASS set both ftp and http password to PASS.\n"),
513 --ask-password prompt for passwords.\n"),
515 --no-iri turn off IRI support.\n"),
517 --local-encoding=ENC use ENC as the local encoding for IRIs.\n"),
519 --remote-encoding=ENC use ENC as the default remote encoding.\n"),
521 --unlink remove file before clobber.\n"),
527 -nd, --no-directories don't create directories.\n"),
529 -x, --force-directories force creation of directories.\n"),
531 -nH, --no-host-directories don't create host directories.\n"),
533 --protocol-directories use protocol name in directories.\n"),
535 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
537 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
543 --http-user=USER set http user to USER.\n"),
545 --http-password=PASS set http password to PASS.\n"),
547 --no-cache disallow server-cached data.\n"),
549 --default-page=NAME Change the default page name (normally\n\
550 this is `index.html'.).\n"),
552 -E, --adjust-extension save HTML/CSS documents with proper extensions.\n"),
554 --ignore-length ignore `Content-Length' header field.\n"),
556 --header=STRING insert STRING among the headers.\n"),
558 --max-redirect maximum redirections allowed per page.\n"),
560 --proxy-user=USER set USER as proxy username.\n"),
562 --proxy-password=PASS set PASS as proxy password.\n"),
564 --referer=URL include `Referer: URL' header in HTTP request.\n"),
566 --save-headers save the HTTP headers to file.\n"),
568 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
570 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
572 --no-cookies don't use cookies.\n"),
574 --load-cookies=FILE load cookies from FILE before session.\n"),
576 --save-cookies=FILE save cookies to FILE after session.\n"),
578 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
580 --post-data=STRING use the POST method; send STRING as the data.\n"),
582 --post-file=FILE use the POST method; send contents of FILE.\n"),
584 --content-disposition honor the Content-Disposition header when\n\
585 choosing local file names (EXPERIMENTAL).\n"),
587 --auth-no-challenge send Basic HTTP authentication information\n\
588 without first waiting for the server's\n\
594 HTTPS (SSL/TLS) options:\n"),
596 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
597 SSLv3, and TLSv1.\n"),
599 --no-check-certificate don't validate the server's certificate.\n"),
601 --certificate=FILE client certificate file.\n"),
603 --certificate-type=TYPE client certificate type, PEM or DER.\n"),
605 --private-key=FILE private key file.\n"),
607 --private-key-type=TYPE private key type, PEM or DER.\n"),
609 --ca-certificate=FILE file with the bundle of CA's.\n"),
611 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
613 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
615 --egd-file=FILE file naming the EGD socket with random data.\n"),
617 #endif /* HAVE_SSL */
623 --ftp-stmlf Use Stream_LF format for all binary FTP files.\n"),
624 #endif /* def __VMS */
626 --ftp-user=USER set ftp user to USER.\n"),
628 --ftp-password=PASS set ftp password to PASS.\n"),
630 --no-remove-listing don't remove `.listing' files.\n"),
632 --no-glob turn off FTP file name globbing.\n"),
634 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
636 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
640 Recursive download:\n"),
642 -r, --recursive specify recursive download.\n"),
644 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
646 --delete-after delete files locally after downloading them.\n"),
648 -k, --convert-links make links in downloaded HTML or CSS point to\n\
652 -K, --backup-converted before converting file X, back up as X_orig.\n"),
653 #else /* def __VMS */
655 -K, --backup-converted before converting file X, back up as X.orig.\n"),
656 #endif /* def __VMS [else] */
658 -m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
660 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
662 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
666 Recursive accept/reject:\n"),
668 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
670 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
672 -D, --domains=LIST comma-separated list of accepted domains.\n"),
674 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
676 --follow-ftp follow FTP links from HTML documents.\n"),
678 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
680 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
682 -H, --span-hosts go to foreign hosts when recursive.\n"),
684 -L, --relative follow relative links only.\n"),
686 -I, --include-directories=LIST list of allowed directories.\n"),
688 --trust-server-names use the name specified by the redirection\n\
689 url last component.\n"),
691 -X, --exclude-directories=LIST list of excluded directories.\n"),
693 -np, --no-parent don't ascend to the parent directory.\n"),
696 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
701 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
705 for (i = 0; i < countof (help); i++)
706 fputs (_(help[i]), stdout);
711 /* Return a human-readable printed representation of INTERVAL,
712 measured in seconds. */
715 secs_to_human_time (double interval)
718 int secs = (int) (interval + 0.5);
719 int hours, mins, days;
721 days = secs / 86400, secs %= 86400;
722 hours = secs / 3600, secs %= 3600;
723 mins = secs / 60, secs %= 60;
726 sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
728 sprintf (buf, "%dh %dm %ds", hours, mins, secs);
730 sprintf (buf, "%dm %ds", mins, secs);
732 sprintf (buf, "%ss", print_decimal (interval));
738 prompt_for_password (void)
741 printf (_("Password for user %s: "), quote (opt.user));
743 printf (_("Password: "));
747 /* Function that prints the line argument while limiting it
748 to at most line_length. prefix is printed on the first line
749 and an appropriate number of spaces are added on subsequent
752 format_and_print_line (const char *prefix, const char *line,
756 char *line_dup, *token;
758 assert (prefix != NULL);
759 assert (line != NULL);
761 line_dup = xstrdup (line);
763 if (line_length <= 0)
764 line_length = MAX_CHARS_PER_LINE - TABULATION;
766 printf ("%s", prefix);
767 remaining_chars = line_length;
768 /* We break on spaces. */
769 token = strtok (line_dup, " ");
770 while (token != NULL)
772 /* If however a token is much larger than the maximum
773 line length, all bets are off and we simply print the
774 token on the next line. */
775 if (remaining_chars <= strlen (token))
777 printf ("\n%*c", TABULATION, ' ');
778 remaining_chars = line_length - TABULATION;
780 printf ("%s ", token);
781 remaining_chars -= strlen (token) + 1; /* account for " " */
782 token = strtok (NULL, " ");
793 const char *wgetrc_title = _("Wgetrc: ");
794 const char *locale_title = _("Locale: ");
795 const char *compile_title = _("Compile: ");
796 const char *link_title = _("Link: ");
797 char *env_wgetrc, *user_wgetrc;
800 printf (_("GNU Wget %s built on %s.\n\n"), version_string, OS_TYPE);
802 for (i = 0; compiled_features[i] != NULL; )
804 int line_length = MAX_CHARS_PER_LINE;
805 while ((line_length > 0) && (compiled_features[i] != NULL))
807 printf ("%s ", compiled_features[i]);
808 line_length -= strlen (compiled_features[i]) + 2;
815 /* Handle the case when $WGETRC is unset and $HOME/.wgetrc is
817 printf ("%s\n", wgetrc_title);
818 env_wgetrc = wgetrc_env_file_name ();
819 if (env_wgetrc && *env_wgetrc)
821 printf (_(" %s (env)\n"), env_wgetrc);
824 user_wgetrc = wgetrc_user_file_name ();
827 printf (_(" %s (user)\n"), user_wgetrc);
831 printf (_(" %s (system)\n"), SYSTEM_WGETRC);
835 format_and_print_line (locale_title,
838 #endif /* def ENABLE_NLS */
840 if (compilation_string != NULL)
841 format_and_print_line (compile_title,
845 if (link_string != NULL)
846 format_and_print_line (link_title,
851 /* TRANSLATORS: When available, an actual copyright character
852 (cirle-c) should be used in preference to "(C)". */
854 Copyright (C) 2009 Free Software Foundation, Inc.\n"), stdout);
856 License GPLv3+: GNU GPL version 3 or later\n\
857 <http://www.gnu.org/licenses/gpl.html>.\n\
858 This is free software: you are free to change and redistribute it.\n\
859 There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
860 /* TRANSLATORS: When available, please use the proper diacritics for
861 names such as this one. See en_US.po for reference. */
862 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
864 fputs (_("Please send bug reports and questions to <bug-wget@gnu.org>.\n"),
869 char *program_name; /* Needed by lib/error.c. */
872 main (int argc, char **argv)
875 int i, ret, longindex;
877 bool append_to_log = false;
879 program_name = argv[0];
881 struct ptimer *timer = ptimer_new ();
882 double start_time = ptimer_measure (timer);
886 /* Construct the name of the executable, without the directory part. */
888 /* On VMS, lose the "dev:[dir]" prefix and the ".EXE;nnn" suffix. */
889 exec_name = vms_basename (argv[0]);
890 #else /* def __VMS */
891 exec_name = strrchr (argv[0], PATH_SEPARATOR);
896 #endif /* def __VMS [else] */
899 /* Drop extension (typically .EXE) from executable filename. */
900 windows_main ((char **) &exec_name);
903 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
908 while ((ret = getopt_long (argc, argv,
909 short_options, long_options, &longindex)) != -1)
912 struct cmdline_option *opt;
914 /* If LONGINDEX is unchanged, it means RET is referring a short
922 printf (_("Try `%s --help' for more options.\n"), exec_name);
925 /* Find the short option character in the mapping. */
926 longindex = optmap[ret - 32];
928 val = long_options[longindex].val;
930 /* Use the retrieved value to locate the option in the
931 option_data array, and to see if we're dealing with the
932 negated "--no-FOO" variant of the boolean option "--foo". */
933 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
937 setoptval (opt->data, optarg, opt->long_name);
941 /* The user has specified a value -- use it. */
942 setoptval (opt->data, optarg, opt->long_name);
945 /* NEG is true for `--no-FOO' style boolean options. */
946 bool neg = !!(val & BOOLEAN_NEG_MARKER);
947 setoptval (opt->data, neg ? "0" : "1", opt->long_name);
952 void (*func) (void) = (void (*) (void)) opt->data;
956 case OPT__APPEND_OUTPUT:
957 setoptval ("logfile", optarg, opt->long_name);
958 append_to_log = true;
961 run_command (optarg);
965 /* We support real --no-FOO flags now, but keep these
966 short options for convenience and backward
969 for (p = optarg; p && *p; p++)
973 setoptval ("verbose", "0", opt->long_name);
976 setoptval ("addhostdir", "0", opt->long_name);
979 setoptval ("dirstruct", "0", opt->long_name);
982 setoptval ("noclobber", "1", opt->long_name);
985 setoptval ("noparent", "1", opt->long_name);
988 fprintf (stderr, _("%s: illegal option -- `-n%c'\n"),
991 fprintf (stderr, "\n");
992 fprintf (stderr, _("Try `%s --help' for more options.\n"),
1001 /* The wgetrc commands are named noparent and noclobber,
1002 so we must revert the meaning of the cmdline options
1003 before passing the value to setoptval. */
1006 flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
1007 || (c_tolower (optarg[0]) == 'o'
1008 && c_tolower (optarg[1]) == 'n'));
1009 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
1010 flag ? "0" : "1", opt->long_name);
1013 case OPT__DONT_REMOVE_LISTING:
1014 setoptval ("removelisting", "0", opt->long_name);
1021 nurl = argc - optind;
1023 /* All user options have now been processed, so it's now safe to do
1024 interoption dependency checks. */
1026 if (opt.reclevel == 0)
1027 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
1029 if (opt.spider || opt.delete_after)
1030 opt.no_dirstruct = true;
1032 if (opt.page_requisites && !opt.recursive)
1034 /* Don't set opt.recursive here because it would confuse the FTP
1035 code. Instead, call retrieve_tree below when either
1036 page_requisites or recursive is requested. */
1038 if (!opt.no_dirstruct)
1039 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
1042 if (opt.verbose == -1)
1043 opt.verbose = !opt.quiet;
1045 /* Sanity checks. */
1046 if (opt.verbose && opt.quiet)
1048 fprintf (stderr, _("Can't be verbose and quiet at the same time.\n"));
1052 if (opt.timestamping && opt.noclobber)
1054 fprintf (stderr, _("\
1055 Can't timestamp and not clobber old files at the same time.\n"));
1060 if (opt.ipv4_only && opt.ipv6_only)
1063 _("Cannot specify both --inet4-only and --inet6-only.\n"));
1068 if (opt.output_document)
1070 if (opt.convert_links
1071 && (nurl > 1 || opt.page_requisites || opt.recursive))
1074 Cannot specify both -k and -O if multiple URLs are given, or in combination\n\
1075 with -p or -r. See the manual for details.\n\n"), stderr);
1079 if (opt.page_requisites
1082 logprintf (LOG_NOTQUIET, "%s", _("\
1083 WARNING: combining -O with -r or -p will mean that all downloaded content\n\
1084 will be placed in the single file you specified.\n\n"));
1086 if (opt.timestamping)
1088 logprintf (LOG_NOTQUIET, "%s", _("\
1089 WARNING: timestamping does nothing in combination with -O. See the manual\n\
1090 for details.\n\n"));
1091 opt.timestamping = false;
1093 if (opt.noclobber && file_exists_p(opt.output_document))
1095 /* Check if output file exists; if it does, exit. */
1096 logprintf (LOG_VERBOSE,
1097 _("File `%s' already there; not retrieving.\n"),
1098 opt.output_document);
1103 if (opt.ask_passwd && opt.passwd)
1106 _("Cannot specify both --ask-password and --password.\n"));
1111 if (!nurl && !opt.input_filename)
1113 /* No URL specified. */
1114 fprintf (stderr, _("%s: missing URL\n"), exec_name);
1117 /* #### Something nicer should be printed here -- similar to the
1118 pre-1.5 `--help' page. */
1119 fprintf (stderr, _("Try `%s --help' for more options.\n"), exec_name);
1126 if (opt.locale && !check_encoding_name (opt.locale))
1130 opt.locale = find_locale ();
1132 if (opt.encoding_remote && !check_encoding_name (opt.encoding_remote))
1133 opt.encoding_remote = NULL;
1136 if (opt.enable_iri || opt.locale || opt.encoding_remote)
1138 /* sXXXav : be more specific... */
1139 fprintf (stderr, _("This version does not have support for IRIs\n"));
1146 opt.passwd = prompt_for_password ();
1148 if (opt.passwd == NULL || opt.passwd[0] == '\0')
1158 fork_to_background ();
1161 /* Initialize progress. Have to do this after the options are
1162 processed so we know where the log file is. */
1164 set_progress_implementation (opt.progress_type);
1166 /* Fill in the arguments. */
1167 url = alloca_array (char *, nurl + 1);
1168 for (i = 0; i < nurl; i++, optind++)
1170 char *rewritten = rewrite_shorthand_url (argv[optind]);
1174 url[i] = xstrdup (argv[optind]);
1178 /* Initialize logging. */
1179 log_init (opt.lfilename, append_to_log);
1181 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n",
1182 version_string, OS_TYPE));
1184 /* Open the output filename if necessary. */
1187 Note that having the output_stream ("-O") file opened here for an FTP
1188 URL rather than in getftp() (ftp.c) (and the http equivalent) rather
1189 limits the ability in VMS to open the file differently for ASCII
1190 versus binary FTP there. (Of course, doing it here allows a open
1191 failure to be detected immediately, without first connecting to the
1194 if (opt.output_document)
1196 if (HYPHENP (opt.output_document))
1200 result = freopen ("CONOUT$", "wb", stdout);
1203 logputs (LOG_NOTQUIET, _("\
1204 WARNING: Can't reopen standard output in binary mode;\n\
1205 downloaded file may contain inappropriate line endings.\n"));
1208 output_stream = stdout;
1215 /* Common fopen() optional arguments:
1216 sequential access only, access callback function.
1218 # define FOPEN_OPT_ARGS , "fop=sqo", "acc", acc_cb, &open_id
1220 #else /* def __VMS */
1221 # define FOPEN_OPT_ARGS
1222 #endif /* def __VMS [else] */
1224 output_stream = fopen (opt.output_document,
1225 opt.always_rest ? "ab" : "wb"
1227 if (output_stream == NULL)
1229 perror (opt.output_document);
1232 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
1233 output_stream_regular = true;
1235 if (!output_stream_regular && opt.convert_links)
1237 fprintf (stderr, _("-k can be used together with -O only if \
1238 outputting to a regular file.\n"));
1245 /* Set global ODS5 flag according to the specified destination (if
1246 any), otherwise according to the current default device.
1248 if (output_stream == NULL)
1249 set_ods5_dest( "SYS$DISK");
1250 else if (output_stream != stdout)
1251 set_ods5_dest( opt.output_document);
1252 #endif /* def __VMS */
1259 /* Setup the signal handler to redirect output when hangup is
1261 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1262 signal(SIGHUP, redirect_output_signal);
1264 /* ...and do the same for SIGUSR1. */
1266 signal (SIGUSR1, redirect_output_signal);
1269 /* Writing to a closed socket normally signals SIGPIPE, and the
1270 process exits. What we want is to ignore SIGPIPE and just check
1271 for the return value of write(). */
1272 signal (SIGPIPE, SIG_IGN);
1275 signal (SIGWINCH, progress_handle_sigwinch);
1278 /* Retrieve the URLs from argument list. */
1279 for (t = url; *t; t++)
1281 char *filename = NULL, *redirected_URL = NULL;
1283 /* Need to do a new struct iri every time, because
1284 * retrieve_url may modify it in some circumstances,
1286 struct iri *iri = iri_new ();
1287 struct url *url_parsed;
1289 set_uri_encoding (iri, opt.locale, true);
1290 url_parsed = url_parse (*t, &url_err, iri, true);
1294 char *error = url_error (*t, url_err);
1295 logprintf (LOG_NOTQUIET, "%s: %s.\n",*t, error);
1300 if ((opt.recursive || opt.page_requisites)
1301 && (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (url_parsed)))
1303 int old_follow_ftp = opt.follow_ftp;
1305 /* Turn opt.follow_ftp on in case of recursive FTP retrieval */
1306 if (url_scheme (*t) == SCHEME_FTP)
1309 retrieve_tree (url_parsed, NULL);
1311 opt.follow_ftp = old_follow_ftp;
1315 retrieve_url (url_parsed, *t, &filename, &redirected_URL, NULL,
1316 &dt, opt.recursive, iri, true);
1319 if (opt.delete_after && file_exists_p(filename))
1321 DEBUGP (("Removing file due to --delete-after in main():\n"));
1322 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
1323 if (unlink (filename))
1324 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1326 xfree_null (redirected_URL);
1327 xfree_null (filename);
1328 url_free (url_parsed);
1333 /* And then from the input file, if any. */
1334 if (opt.input_filename)
1337 retrieve_from_file (opt.input_filename, opt.force_html, &count);
1339 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
1340 opt.input_filename);
1343 /* Print broken links. */
1344 if (opt.recursive && opt.spider)
1345 print_broken_links ();
1347 /* Print the downloaded sum. */
1348 if ((opt.recursive || opt.page_requisites
1350 || (opt.input_filename && total_downloaded_bytes != 0))
1352 total_downloaded_bytes != 0)
1354 double end_time = ptimer_measure (timer);
1355 ptimer_destroy (timer);
1357 char *wall_time = xstrdup (secs_to_human_time (end_time - start_time));
1358 char *download_time = xstrdup (secs_to_human_time (total_download_time));
1359 logprintf (LOG_NOTQUIET,
1360 _("FINISHED --%s--\nTotal wall clock time: %s\n"
1361 "Downloaded: %d files, %s in %s (%s)\n"),
1362 datetime_str (time (NULL)),
1365 human_readable (total_downloaded_bytes),
1367 retr_rate (total_downloaded_bytes, total_download_time));
1369 xfree (download_time);
1371 /* Print quota warning, if exceeded. */
1372 if (opt.quota && total_downloaded_bytes > opt.quota)
1373 logprintf (LOG_NOTQUIET,
1374 _("Download quota of %s EXCEEDED!\n"),
1375 human_readable (opt.quota));
1378 if (opt.cookies_output)
1381 if (opt.convert_links && !opt.delete_after)
1382 convert_all_links ();
1385 for (i = 0; i < nurl; i++)
1389 return get_exit_status ();
1391 #endif /* TESTING */
1393 #if defined(SIGHUP) || defined(SIGUSR1)
1395 /* So the signal_name check doesn't blow when only one is available. */
1403 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
1404 will proceed operation as usual, trying to write into a log file.
1405 If that is impossible, the output will be turned off. */
1408 redirect_output_signal (int sig)
1410 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1411 (sig == SIGUSR1 ? "SIGUSR1" :
1413 log_request_redirect_output (signal_name);
1414 progress_schedule_redirect ();
1415 signal (sig, redirect_output_signal);