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 */
67 #ifndef PATH_SEPARATOR
68 # define PATH_SEPARATOR '/'
73 /* defined in version.c */
74 extern char *version_string;
75 extern char *compilation_string;
76 extern char *system_getrc;
77 extern char *link_string;
78 /* defined in build_info.c */
79 extern const char *compiled_features[];
80 /* Used for --version output in print_version */
81 #define MAX_CHARS_PER_LINE 72
84 #if defined(SIGHUP) || defined(SIGUSR1)
85 static void redirect_output_signal (int);
88 const char *exec_name;
90 /* Number of successfully downloaded URLs */
94 /* Initialize I18N/L10N. That amounts to invoking setlocale, and
95 setting up gettext's message catalog using bindtextdomain and
96 textdomain. Does nothing if NLS is disabled or missing. */
99 i18n_initialize (void)
101 /* ENABLE_NLS implies existence of functions invoked here. */
103 /* Set the current locale. */
104 setlocale (LC_ALL, "");
105 /* Set the text message domain. */
106 bindtextdomain ("wget", LOCALEDIR);
108 #endif /* ENABLE_NLS */
111 /* Definition of command-line options. */
113 static void print_help (void);
114 static void print_version (void);
119 # define IF_SSL(x) NULL
123 # define WHEN_DEBUG(x) x
125 # define WHEN_DEBUG(x) NULL
128 struct cmdline_option {
129 const char *long_name;
135 /* Non-standard options that have to be handled specially in
139 OPT__DONT_REMOVE_LISTING,
144 const void *data; /* for standard options */
145 int argtype; /* for non-standard options */
148 static struct cmdline_option option_data[] =
150 { "accept", 'A', OPT_VALUE, "accept", -1 },
151 { "adjust-extension", 'E', OPT_BOOLEAN, "adjustextension", -1 },
152 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
153 { "ask-password", 0, OPT_BOOLEAN, "askpassword", -1 },
154 { "auth-no-challenge", 0, OPT_BOOLEAN, "authnochallenge", -1 },
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 { IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
161 { IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
162 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
163 { IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
164 { IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
165 { IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
166 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
167 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
168 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
169 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
170 { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
171 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
172 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
173 { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
174 { "default-page", 0, OPT_VALUE, "defaultpage", -1 },
175 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
176 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
177 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
178 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
179 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
180 { "domains", 'D', OPT_VALUE, "domains", -1 },
181 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
182 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 }, /* deprecated */
183 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
184 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
185 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
186 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
187 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
188 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
189 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
190 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
191 { "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
193 { "ftp-stmlf", 0, OPT_BOOLEAN, "ftpstmlf", -1 },
194 #endif /* def __VMS */
195 { "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
196 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
197 { "header", 0, OPT_VALUE, "header", -1 },
198 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
199 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
200 { "html-extension", 'E', OPT_BOOLEAN, "adjustextension", -1 }, /* deprecated */
201 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
202 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
203 { "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
204 { "http-password", 0, OPT_VALUE, "httppassword", -1 },
205 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
206 { "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
207 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
208 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
209 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
211 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
212 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
214 { "input-file", 'i', OPT_VALUE, "input", -1 },
215 { "iri", 0, OPT_BOOLEAN, "iri", -1 },
216 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
217 { "level", 'l', OPT_VALUE, "reclevel", -1 },
218 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
219 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
220 { "local-encoding", 0, OPT_VALUE, "localencoding", -1 },
221 { "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
222 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
223 { "no", 'n', OPT__NO, NULL, required_argument },
224 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
225 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
226 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
227 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
228 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
229 { "parent", 0, OPT__PARENT, NULL, optional_argument },
230 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
231 { "password", 0, OPT_VALUE, "password", -1 },
232 { "post-data", 0, OPT_VALUE, "postdata", -1 },
233 { "post-file", 0, OPT_VALUE, "postfile", -1 },
234 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
235 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 }, /* deprecated */
236 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
237 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
238 { "progress", 0, OPT_VALUE, "progress", -1 },
239 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
240 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
241 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
242 { "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
243 { "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
244 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
245 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
246 { "quota", 'Q', OPT_VALUE, "quota", -1 },
247 { "random-file", 0, OPT_VALUE, "randomfile", -1 },
248 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
249 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
250 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
251 { "referer", 0, OPT_VALUE, "referer", -1 },
252 { "reject", 'R', OPT_VALUE, "reject", -1 },
253 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
254 { "remote-encoding", 0, OPT_VALUE, "remoteencoding", -1 },
255 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
256 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
257 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
258 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
259 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
260 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
261 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
262 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
263 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
264 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
265 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
266 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
267 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
268 { "tries", 't', OPT_VALUE, "tries", -1 },
269 { "trust-server-names", 0, OPT_BOOLEAN, "trustservernames", -1 },
270 { "use-server-timestamps", 0, OPT_BOOLEAN, "useservertimestamps", -1 },
271 { "user", 0, OPT_VALUE, "user", -1 },
272 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
273 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
274 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
275 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
276 { "wait", 'w', OPT_VALUE, "wait", -1 },
277 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
279 { "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
286 /* Return a string that contains S with "no-" prepended. The string
287 is NUL-terminated and allocated off static storage at Wget
291 no_prefix (const char *s)
293 static char buffer[1024];
294 static char *p = buffer;
297 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
298 if (p + size >= buffer + sizeof (buffer))
301 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
307 /* The arguments that that main passes to getopt_long. */
308 static struct option long_options[2 * countof (option_data) + 1];
309 static char short_options[128];
311 /* Mapping between short option chars and option_data indices. */
312 static unsigned char optmap[96];
314 /* Marker for `--no-FOO' values in long_options. */
315 #define BOOLEAN_NEG_MARKER 1024
317 /* Initialize the long_options array used by getopt_long from the data
323 char *p = short_options;
325 for (i = 0; i < countof (option_data); i++)
327 struct cmdline_option *opt = &option_data[i];
328 struct option *longopt;
331 /* The option is disabled. */
334 longopt = &long_options[o++];
335 longopt->name = opt->long_name;
339 *p++ = opt->short_name;
340 optmap[opt->short_name - 32] = longopt - long_options;
345 longopt->has_arg = required_argument;
350 /* Specify an optional argument for long options, so that
351 --option=off works the same as --no-option, for
352 compatibility with pre-1.10 Wget. However, don't specify
353 optional arguments short-option booleans because they
354 prevent combining of short options. */
355 longopt->has_arg = optional_argument;
356 /* For Boolean options, add the "--no-FOO" variant, which is
357 identical to "--foo", except it has opposite meaning and
358 it doesn't allow an argument. */
359 longopt = &long_options[o++];
360 longopt->name = no_prefix (opt->long_name);
361 longopt->has_arg = no_argument;
362 /* Mask the value so we'll be able to recognize that we're
363 dealing with the false value. */
364 longopt->val = i | BOOLEAN_NEG_MARKER;
367 assert (opt->argtype != -1);
368 longopt->has_arg = opt->argtype;
371 if (longopt->has_arg == required_argument)
373 /* Don't handle optional_argument */
377 /* Terminate short_options. */
379 /* No need for xzero(long_options[o]) because its storage is static
380 and it will be zeroed by default. */
381 assert (o <= countof (long_options));
384 /* Print the usage message. */
386 print_usage (int error)
388 fprintf (error ? stderr : stdout, _("Usage: %s [OPTION]... [URL]...\n"),
392 /* Print the help message, describing all the available options. If
393 you add an option, be sure to update this list. */
397 /* We split the help text this way to ease translation of individual
399 static const char *help[] = {
402 Mandatory arguments to long options are mandatory for short options too.\n\n"),
406 -V, --version display the version of Wget and exit.\n"),
408 -h, --help print this help.\n"),
410 -b, --background go to background after startup.\n"),
412 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
416 Logging and input file:\n"),
418 -o, --output-file=FILE log messages to FILE.\n"),
420 -a, --append-output=FILE append messages to FILE.\n"),
423 -d, --debug print lots of debugging information.\n"),
427 --wdebug print Watt-32 debug output.\n"),
430 -q, --quiet quiet (no output).\n"),
432 -v, --verbose be verbose (this is the default).\n"),
434 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
436 -i, --input-file=FILE download URLs found in local or external FILE.\n"),
438 -F, --force-html treat input file as HTML.\n"),
440 -B, --base=URL resolves HTML input-file links (-i -F)\n\
441 relative to URL.\n"),
447 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
449 --retry-connrefused retry even if connection is refused.\n"),
451 -O, --output-document=FILE write documents to FILE.\n"),
453 -nc, --no-clobber skip downloads that would download to\n\
456 -c, --continue resume getting a partially-downloaded file.\n"),
458 --progress=TYPE select progress gauge type.\n"),
460 -N, --timestamping don't re-retrieve files unless newer than\n\
463 --no-use-server-timestamps don't set the local file's timestamp by\n\
464 the one on the server.\n"),
466 -S, --server-response print server response.\n"),
468 --spider don't download anything.\n"),
470 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
472 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
474 --connect-timeout=SECS set the connect timeout to SECS.\n"),
476 --read-timeout=SECS set the read timeout to SECS.\n"),
478 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
480 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
482 --random-wait wait from 0.5*WAIT...1.5*WAIT secs between retrievals.\n"),
484 --no-proxy explicitly turn off proxy.\n"),
486 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
488 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
490 --limit-rate=RATE limit download rate to RATE.\n"),
492 --no-dns-cache disable caching DNS lookups.\n"),
494 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
496 --ignore-case ignore case when matching files/directories.\n"),
499 -4, --inet4-only connect only to IPv4 addresses.\n"),
501 -6, --inet6-only connect only to IPv6 addresses.\n"),
503 --prefer-family=FAMILY connect first to addresses of specified family,\n\
504 one of IPv6, IPv4, or none.\n"),
507 --user=USER set both ftp and http user to USER.\n"),
509 --password=PASS set both ftp and http password to PASS.\n"),
511 --ask-password prompt for passwords.\n"),
513 --no-iri turn off IRI support.\n"),
515 --local-encoding=ENC use ENC as the local encoding for IRIs.\n"),
517 --remote-encoding=ENC use ENC as the default remote encoding.\n"),
523 -nd, --no-directories don't create directories.\n"),
525 -x, --force-directories force creation of directories.\n"),
527 -nH, --no-host-directories don't create host directories.\n"),
529 --protocol-directories use protocol name in directories.\n"),
531 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
533 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
539 --http-user=USER set http user to USER.\n"),
541 --http-password=PASS set http password to PASS.\n"),
543 --no-cache disallow server-cached data.\n"),
545 --default-page=NAME Change the default page name (normally\n\
546 this is `index.html'.).\n"),
548 -E, --adjust-extension save HTML/CSS documents with proper extensions.\n"),
550 --ignore-length ignore `Content-Length' header field.\n"),
552 --header=STRING insert STRING among the headers.\n"),
554 --max-redirect maximum redirections allowed per page.\n"),
556 --proxy-user=USER set USER as proxy username.\n"),
558 --proxy-password=PASS set PASS as proxy password.\n"),
560 --referer=URL include `Referer: URL' header in HTTP request.\n"),
562 --save-headers save the HTTP headers to file.\n"),
564 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
566 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
568 --no-cookies don't use cookies.\n"),
570 --load-cookies=FILE load cookies from FILE before session.\n"),
572 --save-cookies=FILE save cookies to FILE after session.\n"),
574 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
576 --post-data=STRING use the POST method; send STRING as the data.\n"),
578 --post-file=FILE use the POST method; send contents of FILE.\n"),
580 --content-disposition honor the Content-Disposition header when\n\
581 choosing local file names (EXPERIMENTAL).\n"),
583 --auth-no-challenge send Basic HTTP authentication information\n\
584 without first waiting for the server's\n\
590 HTTPS (SSL/TLS) options:\n"),
592 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
593 SSLv3, and TLSv1.\n"),
595 --no-check-certificate don't validate the server's certificate.\n"),
597 --certificate=FILE client certificate file.\n"),
599 --certificate-type=TYPE client certificate type, PEM or DER.\n"),
601 --private-key=FILE private key file.\n"),
603 --private-key-type=TYPE private key type, PEM or DER.\n"),
605 --ca-certificate=FILE file with the bundle of CA's.\n"),
607 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
609 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
611 --egd-file=FILE file naming the EGD socket with random data.\n"),
613 #endif /* HAVE_SSL */
619 --ftp-stmlf Use Stream_LF format for all binary FTP files.\n"),
620 #endif /* def __VMS */
622 --ftp-user=USER set ftp user to USER.\n"),
624 --ftp-password=PASS set ftp password to PASS.\n"),
626 --no-remove-listing don't remove `.listing' files.\n"),
628 --no-glob turn off FTP file name globbing.\n"),
630 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
632 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
636 Recursive download:\n"),
638 -r, --recursive specify recursive download.\n"),
640 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
642 --delete-after delete files locally after downloading them.\n"),
644 -k, --convert-links make links in downloaded HTML or CSS point to\n\
648 -K, --backup-converted before converting file X, back up as X_orig.\n"),
649 #else /* def __VMS */
651 -K, --backup-converted before converting file X, back up as X.orig.\n"),
652 #endif /* def __VMS [else] */
654 -m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
656 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
658 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
662 Recursive accept/reject:\n"),
664 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
666 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
668 -D, --domains=LIST comma-separated list of accepted domains.\n"),
670 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
672 --follow-ftp follow FTP links from HTML documents.\n"),
674 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
676 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
678 -H, --span-hosts go to foreign hosts when recursive.\n"),
680 -L, --relative follow relative links only.\n"),
682 -I, --include-directories=LIST list of allowed directories.\n"),
684 --trust-server-names use the name specified by the redirection url last component.\n"),
686 -X, --exclude-directories=LIST list of excluded directories.\n"),
688 -np, --no-parent don't ascend to the parent directory.\n"),
691 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
696 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
700 for (i = 0; i < countof (help); i++)
701 fputs (_(help[i]), stdout);
706 /* Return a human-readable printed representation of INTERVAL,
707 measured in seconds. */
710 secs_to_human_time (double interval)
713 int secs = (int) (interval + 0.5);
714 int hours, mins, days;
716 days = secs / 86400, secs %= 86400;
717 hours = secs / 3600, secs %= 3600;
718 mins = secs / 60, secs %= 60;
721 sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
723 sprintf (buf, "%dh %dm %ds", hours, mins, secs);
725 sprintf (buf, "%dm %ds", mins, secs);
727 sprintf (buf, "%ss", print_decimal (interval));
733 prompt_for_password (void)
736 printf (_("Password for user %s: "), quote (opt.user));
738 printf (_("Password: "));
742 /* Function that prints the line argument while limiting it
743 to at most line_length. prefix is printed on the first line
744 and an appropriate number of spaces are added on subsequent
747 format_and_print_line (const char *prefix, const char *line,
751 char *line_dup, *token;
753 assert (prefix != NULL);
754 assert (line != NULL);
756 line_dup = xstrdup (line);
758 if (line_length <= 0)
759 line_length = MAX_CHARS_PER_LINE - TABULATION;
761 printf ("%s", prefix);
762 remaining_chars = line_length;
763 /* We break on spaces. */
764 token = strtok (line_dup, " ");
765 while (token != NULL)
767 /* If however a token is much larger than the maximum
768 line length, all bets are off and we simply print the
769 token on the next line. */
770 if (remaining_chars <= strlen (token))
772 printf ("\n%*c", TABULATION, ' ');
773 remaining_chars = line_length - TABULATION;
775 printf ("%s ", token);
776 remaining_chars -= strlen (token) + 1; /* account for " " */
777 token = strtok (NULL, " ");
788 const char *wgetrc_title = _("Wgetrc: ");
789 const char *locale_title = _("Locale: ");
790 const char *compile_title = _("Compile: ");
791 const char *link_title = _("Link: ");
792 char *env_wgetrc, *user_wgetrc;
795 printf (_("GNU Wget %s built on %s.\n\n"), version_string, OS_TYPE);
797 for (i = 0; compiled_features[i] != NULL; )
799 int line_length = MAX_CHARS_PER_LINE;
800 while ((line_length > 0) && (compiled_features[i] != NULL))
802 printf ("%s ", compiled_features[i]);
803 line_length -= strlen (compiled_features[i]) + 2;
810 /* Handle the case when $WGETRC is unset and $HOME/.wgetrc is
812 printf ("%s\n", wgetrc_title);
813 env_wgetrc = wgetrc_env_file_name ();
814 if (env_wgetrc && *env_wgetrc)
816 printf (_(" %s (env)\n"), env_wgetrc);
819 user_wgetrc = wgetrc_user_file_name ();
822 printf (_(" %s (user)\n"), user_wgetrc);
826 printf (_(" %s (system)\n"), SYSTEM_WGETRC);
830 format_and_print_line (locale_title,
833 #endif /* def ENABLE_NLS */
835 if (compilation_string != NULL)
836 format_and_print_line (compile_title,
840 if (link_string != NULL)
841 format_and_print_line (link_title,
846 /* TRANSLATORS: When available, an actual copyright character
847 (cirle-c) should be used in preference to "(C)". */
849 Copyright (C) 2009 Free Software Foundation, Inc.\n"), stdout);
851 License GPLv3+: GNU GPL version 3 or later\n\
852 <http://www.gnu.org/licenses/gpl.html>.\n\
853 This is free software: you are free to change and redistribute it.\n\
854 There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
855 /* TRANSLATORS: When available, please use the proper diacritics for
856 names such as this one. See en_US.po for reference. */
857 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
859 fputs (_("Please send bug reports and questions to <bug-wget@gnu.org>.\n"),
864 char *program_name; /* Needed by lib/error.c. */
867 main (int argc, char **argv)
870 int i, ret, longindex;
872 bool append_to_log = false;
874 program_name = argv[0];
878 /* Construct the name of the executable, without the directory part. */
880 /* On VMS, lose the "dev:[dir]" prefix and the ".EXE;nnn" suffix. */
881 exec_name = vms_basename (argv[0]);
882 #else /* def __VMS */
883 exec_name = strrchr (argv[0], PATH_SEPARATOR);
888 #endif /* def __VMS [else] */
891 /* Drop extension (typically .EXE) from executable filename. */
892 windows_main ((char **) &exec_name);
895 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
900 while ((ret = getopt_long (argc, argv,
901 short_options, long_options, &longindex)) != -1)
904 struct cmdline_option *opt;
906 /* If LONGINDEX is unchanged, it means RET is referring a short
914 printf (_("Try `%s --help' for more options.\n"), exec_name);
917 /* Find the short option character in the mapping. */
918 longindex = optmap[ret - 32];
920 val = long_options[longindex].val;
922 /* Use the retrieved value to locate the option in the
923 option_data array, and to see if we're dealing with the
924 negated "--no-FOO" variant of the boolean option "--foo". */
925 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
929 setoptval (opt->data, optarg, opt->long_name);
933 /* The user has specified a value -- use it. */
934 setoptval (opt->data, optarg, opt->long_name);
937 /* NEG is true for `--no-FOO' style boolean options. */
938 bool neg = !!(val & BOOLEAN_NEG_MARKER);
939 setoptval (opt->data, neg ? "0" : "1", opt->long_name);
944 void (*func) (void) = (void (*) (void)) opt->data;
948 case OPT__APPEND_OUTPUT:
949 setoptval ("logfile", optarg, opt->long_name);
950 append_to_log = true;
953 run_command (optarg);
957 /* We support real --no-FOO flags now, but keep these
958 short options for convenience and backward
961 for (p = optarg; *p; p++)
965 setoptval ("verbose", "0", opt->long_name);
968 setoptval ("addhostdir", "0", opt->long_name);
971 setoptval ("dirstruct", "0", opt->long_name);
974 setoptval ("noclobber", "1", opt->long_name);
977 setoptval ("noparent", "1", opt->long_name);
980 fprintf (stderr, _("%s: illegal option -- `-n%c'\n"),
983 fprintf (stderr, "\n");
984 fprintf (stderr, _("Try `%s --help' for more options.\n"),
993 /* The wgetrc commands are named noparent and noclobber,
994 so we must revert the meaning of the cmdline options
995 before passing the value to setoptval. */
998 flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
999 || (c_tolower (optarg[0]) == 'o'
1000 && c_tolower (optarg[1]) == 'n'));
1001 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
1002 flag ? "0" : "1", opt->long_name);
1005 case OPT__DONT_REMOVE_LISTING:
1006 setoptval ("removelisting", "0", opt->long_name);
1013 nurl = argc - optind;
1015 /* All user options have now been processed, so it's now safe to do
1016 interoption dependency checks. */
1018 if (opt.reclevel == 0)
1019 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
1021 if (opt.spider || opt.delete_after)
1022 opt.no_dirstruct = true;
1024 if (opt.page_requisites && !opt.recursive)
1026 /* Don't set opt.recursive here because it would confuse the FTP
1027 code. Instead, call retrieve_tree below when either
1028 page_requisites or recursive is requested. */
1030 if (!opt.no_dirstruct)
1031 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
1034 if (opt.verbose == -1)
1035 opt.verbose = !opt.quiet;
1037 /* Sanity checks. */
1038 if (opt.verbose && opt.quiet)
1040 fprintf (stderr, _("Can't be verbose and quiet at the same time.\n"));
1044 if (opt.timestamping && opt.noclobber)
1046 fprintf (stderr, _("\
1047 Can't timestamp and not clobber old files at the same time.\n"));
1052 if (opt.ipv4_only && opt.ipv6_only)
1055 _("Cannot specify both --inet4-only and --inet6-only.\n"));
1060 if (opt.output_document)
1062 if (opt.convert_links
1063 && (nurl > 1 || opt.page_requisites || opt.recursive))
1066 Cannot specify both -k and -O if multiple URLs are given, or in combination\n\
1067 with -p or -r. See the manual for details.\n\n"), stderr);
1071 if (opt.page_requisites
1074 logprintf (LOG_NOTQUIET, "%s", _("\
1075 WARNING: combining -O with -r or -p will mean that all downloaded content\n\
1076 will be placed in the single file you specified.\n\n"));
1078 if (opt.timestamping)
1080 logprintf (LOG_NOTQUIET, "%s", _("\
1081 WARNING: timestamping does nothing in combination with -O. See the manual\n\
1082 for details.\n\n"));
1083 opt.timestamping = false;
1085 if (opt.noclobber && file_exists_p(opt.output_document))
1087 /* Check if output file exists; if it does, exit. */
1088 logprintf (LOG_VERBOSE,
1089 _("File `%s' already there; not retrieving.\n"),
1090 opt.output_document);
1095 if (opt.ask_passwd && opt.passwd)
1098 _("Cannot specify both --ask-password and --password.\n"));
1103 if (!nurl && !opt.input_filename)
1105 /* No URL specified. */
1106 fprintf (stderr, _("%s: missing URL\n"), exec_name);
1109 /* #### Something nicer should be printed here -- similar to the
1110 pre-1.5 `--help' page. */
1111 fprintf (stderr, _("Try `%s --help' for more options.\n"), exec_name);
1118 if (opt.locale && !check_encoding_name (opt.locale))
1122 opt.locale = find_locale ();
1124 if (opt.encoding_remote && !check_encoding_name (opt.encoding_remote))
1125 opt.encoding_remote = NULL;
1128 if (opt.enable_iri || opt.locale || opt.encoding_remote)
1130 /* sXXXav : be more specific... */
1131 fprintf (stderr, _("This version does not have support for IRIs\n"));
1138 opt.passwd = prompt_for_password ();
1140 if (opt.passwd == NULL || opt.passwd[0] == '\0')
1150 fork_to_background ();
1153 /* Initialize progress. Have to do this after the options are
1154 processed so we know where the log file is. */
1156 set_progress_implementation (opt.progress_type);
1158 /* Fill in the arguments. */
1159 url = alloca_array (char *, nurl + 1);
1160 for (i = 0; i < nurl; i++, optind++)
1162 char *rewritten = rewrite_shorthand_url (argv[optind]);
1166 url[i] = xstrdup (argv[optind]);
1170 /* Initialize logging. */
1171 log_init (opt.lfilename, append_to_log);
1173 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n",
1174 version_string, OS_TYPE));
1176 /* Open the output filename if necessary. */
1179 Note that having the output_stream ("-O") file opened here for an FTP
1180 URL rather than in getftp() (ftp.c) (and the http equivalent) rather
1181 limits the ability in VMS to open the file differently for ASCII
1182 versus binary FTP there. (Of course, doing it here allows a open
1183 failure to be detected immediately, without first connecting to the
1186 if (opt.output_document)
1188 if (HYPHENP (opt.output_document))
1192 result = freopen ("CONOUT$", "wb", stdout);
1195 logputs (LOG_NOTQUIET, _("\
1196 WARNING: Can't reopen standard output in binary mode;\n\
1197 downloaded file may contain inappropriate line endings.\n"));
1200 output_stream = stdout;
1207 /* Common fopen() optional arguments:
1208 sequential access only, access callback function.
1210 # define FOPEN_OPT_ARGS , "fop=sqo", "acc", acc_cb, &open_id
1212 #else /* def __VMS */
1213 # define FOPEN_OPT_ARGS
1214 #endif /* def __VMS [else] */
1216 output_stream = fopen (opt.output_document,
1217 opt.always_rest ? "ab" : "wb"
1219 if (output_stream == NULL)
1221 perror (opt.output_document);
1224 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
1225 output_stream_regular = true;
1227 if (!output_stream_regular && opt.convert_links)
1229 fprintf (stderr, _("-k can be used together with -O only if \
1230 outputting to a regular file.\n"));
1237 /* Set global ODS5 flag according to the specified destination (if
1238 any), otherwise according to the current default device.
1240 if (output_stream == NULL)
1241 set_ods5_dest( "SYS$DISK");
1242 else if (output_stream != stdout)
1243 set_ods5_dest( opt.output_document);
1244 #endif /* def __VMS */
1251 /* Setup the signal handler to redirect output when hangup is
1253 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1254 signal(SIGHUP, redirect_output_signal);
1256 /* ...and do the same for SIGUSR1. */
1258 signal (SIGUSR1, redirect_output_signal);
1261 /* Writing to a closed socket normally signals SIGPIPE, and the
1262 process exits. What we want is to ignore SIGPIPE and just check
1263 for the return value of write(). */
1264 signal (SIGPIPE, SIG_IGN);
1267 signal (SIGWINCH, progress_handle_sigwinch);
1270 status = RETROK; /* initialize it, just-in-case */
1271 /* Retrieve the URLs from argument list. */
1272 for (t = url; *t; t++)
1274 char *filename = NULL, *redirected_URL = NULL;
1276 /* Need to do a new struct iri every time, because
1277 * retrieve_url may modify it in some circumstances,
1279 struct iri *iri = iri_new ();
1280 struct url *url_parsed;
1282 set_uri_encoding (iri, opt.locale, true);
1283 url_parsed = url_parse (*t, &url_err, iri, true);
1287 char *error = url_error (*t, url_err);
1288 logprintf (LOG_NOTQUIET, "%s: %s.\n",*t, error);
1294 if ((opt.recursive || opt.page_requisites)
1295 && (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (url_parsed)))
1297 int old_follow_ftp = opt.follow_ftp;
1299 /* Turn opt.follow_ftp on in case of recursive FTP retrieval */
1300 if (url_scheme (*t) == SCHEME_FTP)
1303 status = retrieve_tree (url_parsed, NULL);
1305 opt.follow_ftp = old_follow_ftp;
1309 status = retrieve_url (url_parsed, *t, &filename, &redirected_URL,
1310 NULL, &dt, opt.recursive, iri, true);
1313 if (opt.delete_after && file_exists_p(filename))
1315 DEBUGP (("Removing file due to --delete-after in main():\n"));
1316 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
1317 if (unlink (filename))
1318 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1320 xfree_null (redirected_URL);
1321 xfree_null (filename);
1322 url_free (url_parsed);
1327 /* And then from the input file, if any. */
1328 if (opt.input_filename)
1331 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
1333 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
1334 opt.input_filename);
1337 /* Print broken links. */
1338 if (opt.recursive && opt.spider)
1339 print_broken_links ();
1341 /* Print the downloaded sum. */
1342 if ((opt.recursive || opt.page_requisites
1344 || (opt.input_filename && total_downloaded_bytes != 0))
1346 total_downloaded_bytes != 0)
1348 logprintf (LOG_NOTQUIET,
1349 _("FINISHED --%s--\nDownloaded: %d files, %s in %s (%s)\n"),
1350 datetime_str (time (NULL)),
1352 human_readable (total_downloaded_bytes),
1353 secs_to_human_time (total_download_time),
1354 retr_rate (total_downloaded_bytes, total_download_time));
1355 /* Print quota warning, if exceeded. */
1356 if (opt.quota && total_downloaded_bytes > opt.quota)
1357 logprintf (LOG_NOTQUIET,
1358 _("Download quota of %s EXCEEDED!\n"),
1359 human_readable (opt.quota));
1362 if (opt.cookies_output)
1365 if (opt.convert_links && !opt.delete_after)
1366 convert_all_links ();
1369 for (i = 0; i < nurl; i++)
1373 return get_exit_status ();
1375 #endif /* TESTING */
1377 #if defined(SIGHUP) || defined(SIGUSR1)
1379 /* So the signal_name check doesn't blow when only one is available. */
1387 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
1388 will proceed operation as usual, trying to write into a log file.
1389 If that is impossible, the output will be turned off. */
1392 redirect_output_signal (int sig)
1394 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1395 (sig == SIGUSR1 ? "SIGUSR1" :
1397 log_request_redirect_output (signal_name);
1398 progress_schedule_redirect ();
1399 signal (sig, redirect_output_signal);