1 /* Command line parsing.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008 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 */
53 #include "progress.h" /* for progress_handle_sigwinch */
56 #include "http.h" /* for save_cookies */
62 #ifndef PATH_SEPARATOR
63 # define PATH_SEPARATOR '/'
68 /* defined in version.c */
69 extern char *version_string;
70 extern char *compilation_string;
71 extern char *system_getrc;
72 extern char *link_string;
73 /* defined in build_info.c */
74 extern char *compiled_features[];
75 /* Used for --version output in print_version */
76 static const int max_chars_per_line = 72;
78 #if defined(SIGHUP) || defined(SIGUSR1)
79 static void redirect_output_signal (int);
82 const char *exec_name;
84 /* Number of successfully downloaded URLs */
88 /* Initialize I18N/L10N. That amounts to invoking setlocale, and
89 setting up gettext's message catalog using bindtextdomain and
90 textdomain. Does nothing if NLS is disabled or missing. */
93 i18n_initialize (void)
95 /* ENABLE_NLS implies existence of functions invoked here. */
97 /* Set the current locale. */
98 setlocale (LC_ALL, "");
99 /* Set the text message domain. */
100 bindtextdomain ("wget", LOCALEDIR);
102 #endif /* ENABLE_NLS */
105 /* Definition of command-line options. */
107 static void print_help (void);
108 static void print_version (void);
113 # define IF_SSL(x) NULL
117 # define WHEN_DEBUG(x) x
119 # define WHEN_DEBUG(x) NULL
122 struct cmdline_option {
123 const char *long_name;
129 /* Non-standard options that have to be handled specially in
133 OPT__DONT_REMOVE_LISTING,
138 const void *data; /* for standard options */
139 int argtype; /* for non-standard options */
142 static struct cmdline_option option_data[] =
144 { "accept", 'A', OPT_VALUE, "accept", -1 },
145 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
146 { "ask-password", 0, OPT_BOOLEAN, "askpassword", -1 },
147 { "auth-no-challenge", 0, OPT_BOOLEAN, "authnochallenge", -1 },
148 { "background", 'b', OPT_BOOLEAN, "background", -1 },
149 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
150 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
151 { "base", 'B', OPT_VALUE, "base", -1 },
152 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
153 { IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
154 { IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
155 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
156 { IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
157 { IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
158 { IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
159 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
160 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
161 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
162 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
163 { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
164 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
165 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
166 { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
167 { "default-page", 0, OPT_VALUE, "defaultpage", -1 },
168 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
169 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
170 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
171 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
172 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
173 { "domains", 'D', OPT_VALUE, "domains", -1 },
174 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
175 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
176 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
177 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
178 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
179 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
180 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
181 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
182 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
183 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
184 { "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
185 { "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
186 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
187 { "header", 0, OPT_VALUE, "header", -1 },
188 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
189 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
190 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
191 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
192 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
193 { "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
194 { "http-password", 0, OPT_VALUE, "httppassword", -1 },
195 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
196 { "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
197 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
198 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
199 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
201 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
202 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
204 { "input-file", 'i', OPT_VALUE, "input", -1 },
205 { "iri", 0, OPT_BOOLEAN, "iri", -1 },
206 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
207 { "level", 'l', OPT_VALUE, "reclevel", -1 },
208 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
209 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
210 { "locale", 0, OPT_VALUE, "locale", -1 },
211 { "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
212 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
213 { "no", 'n', OPT__NO, NULL, required_argument },
214 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
215 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
216 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
217 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
218 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
219 { "parent", 0, OPT__PARENT, NULL, optional_argument },
220 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
221 { "password", 0, OPT_VALUE, "password", -1 },
222 { "post-data", 0, OPT_VALUE, "postdata", -1 },
223 { "post-file", 0, OPT_VALUE, "postfile", -1 },
224 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
225 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
226 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
227 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
228 { "progress", 0, OPT_VALUE, "progress", -1 },
229 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
230 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
231 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
232 { "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
233 { "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
234 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
235 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
236 { "quota", 'Q', OPT_VALUE, "quota", -1 },
237 { "random-file", 0, OPT_VALUE, "randomfile", -1 },
238 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
239 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
240 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
241 { "referer", 0, OPT_VALUE, "referer", -1 },
242 { "reject", 'R', OPT_VALUE, "reject", -1 },
243 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
244 { "remote-encoding", 0, OPT_VALUE, "remoteencoding", -1},
245 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
246 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
247 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
248 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
249 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
250 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
251 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
252 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
253 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
254 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
255 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
256 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
257 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
258 { "tries", 't', OPT_VALUE, "tries", -1 },
259 { "user", 0, OPT_VALUE, "user", -1 },
260 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
261 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
262 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
263 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
264 { "wait", 'w', OPT_VALUE, "wait", -1 },
265 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
267 { "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
274 /* Return a string that contains S with "no-" prepended. The string
275 is NUL-terminated and allocated off static storage at Wget
279 no_prefix (const char *s)
281 static char buffer[1024];
282 static char *p = buffer;
285 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
286 if (p + size >= buffer + sizeof (buffer))
289 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
295 /* The arguments that that main passes to getopt_long. */
296 static struct option long_options[2 * countof (option_data) + 1];
297 static char short_options[128];
299 /* Mapping between short option chars and option_data indices. */
300 static unsigned char optmap[96];
302 /* Marker for `--no-FOO' values in long_options. */
303 #define BOOLEAN_NEG_MARKER 1024
305 /* Initialize the long_options array used by getopt_long from the data
311 char *p = short_options;
313 for (i = 0; i < countof (option_data); i++)
315 struct cmdline_option *opt = &option_data[i];
316 struct option *longopt;
319 /* The option is disabled. */
322 longopt = &long_options[o++];
323 longopt->name = opt->long_name;
327 *p++ = opt->short_name;
328 optmap[opt->short_name - 32] = longopt - long_options;
333 longopt->has_arg = required_argument;
338 /* Specify an optional argument for long options, so that
339 --option=off works the same as --no-option, for
340 compatibility with pre-1.10 Wget. However, don't specify
341 optional arguments short-option booleans because they
342 prevent combining of short options. */
343 longopt->has_arg = optional_argument;
344 /* For Boolean options, add the "--no-FOO" variant, which is
345 identical to "--foo", except it has opposite meaning and
346 it doesn't allow an argument. */
347 longopt = &long_options[o++];
348 longopt->name = no_prefix (opt->long_name);
349 longopt->has_arg = no_argument;
350 /* Mask the value so we'll be able to recognize that we're
351 dealing with the false value. */
352 longopt->val = i | BOOLEAN_NEG_MARKER;
355 assert (opt->argtype != -1);
356 longopt->has_arg = opt->argtype;
359 if (longopt->has_arg == required_argument)
361 /* Don't handle optional_argument */
365 /* Terminate short_options. */
367 /* No need for xzero(long_options[o]) because its storage is static
368 and it will be zeroed by default. */
369 assert (o <= countof (long_options));
372 /* Print the usage message. */
376 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
379 /* Print the help message, describing all the available options. If
380 you add an option, be sure to update this list. */
384 /* We split the help text this way to ease translation of individual
386 static const char *help[] = {
389 Mandatory arguments to long options are mandatory for short options too.\n\n"),
393 -V, --version display the version of Wget and exit.\n"),
395 -h, --help print this help.\n"),
397 -b, --background go to background after startup.\n"),
399 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
403 Logging and input file:\n"),
405 -o, --output-file=FILE log messages to FILE.\n"),
407 -a, --append-output=FILE append messages to FILE.\n"),
410 -d, --debug print lots of debugging information.\n"),
414 --wdebug print Watt-32 debug output.\n"),
417 -q, --quiet quiet (no output).\n"),
419 -v, --verbose be verbose (this is the default).\n"),
421 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
423 -i, --input-file=FILE download URLs found in local or external FILE.\n"),
425 -F, --force-html treat input file as HTML.\n"),
427 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
433 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
435 --retry-connrefused retry even if connection is refused.\n"),
437 -O, --output-document=FILE write documents to FILE.\n"),
439 -nc, --no-clobber skip downloads that would download to\n\
442 -c, --continue resume getting a partially-downloaded file.\n"),
444 --progress=TYPE select progress gauge type.\n"),
446 -N, --timestamping don't re-retrieve files unless newer than\n\
449 -S, --server-response print server response.\n"),
451 --spider don't download anything.\n"),
453 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
455 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
457 --connect-timeout=SECS set the connect timeout to SECS.\n"),
459 --read-timeout=SECS set the read timeout to SECS.\n"),
461 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
463 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
465 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
467 --no-proxy explicitly turn off proxy.\n"),
469 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
471 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
473 --limit-rate=RATE limit download rate to RATE.\n"),
475 --no-dns-cache disable caching DNS lookups.\n"),
477 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
479 --ignore-case ignore case when matching files/directories.\n"),
482 -4, --inet4-only connect only to IPv4 addresses.\n"),
484 -6, --inet6-only connect only to IPv6 addresses.\n"),
486 --prefer-family=FAMILY connect first to addresses of specified family,\n\
487 one of IPv6, IPv4, or none.\n"),
490 --user=USER set both ftp and http user to USER.\n"),
492 --password=PASS set both ftp and http password to PASS.\n"),
494 --ask-password prompt for passwords.\n"),
500 -nd, --no-directories don't create directories.\n"),
502 -x, --force-directories force creation of directories.\n"),
504 -nH, --no-host-directories don't create host directories.\n"),
506 --protocol-directories use protocol name in directories.\n"),
508 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
510 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
516 --http-user=USER set http user to USER.\n"),
518 --http-password=PASS set http password to PASS.\n"),
520 --no-cache disallow server-cached data.\n"),
522 --default-page=NAME Change the default page name (normally\n\
523 this is `index.html'.).\n"),
525 -E, --html-extension save HTML documents with `.html' extension.\n"),
527 --ignore-length ignore `Content-Length' header field.\n"),
529 --header=STRING insert STRING among the headers.\n"),
531 --max-redirect maximum redirections allowed per page.\n"),
533 --proxy-user=USER set USER as proxy username.\n"),
535 --proxy-password=PASS set PASS as proxy password.\n"),
537 --referer=URL include `Referer: URL' header in HTTP request.\n"),
539 --save-headers save the HTTP headers to file.\n"),
541 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
543 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
545 --no-cookies don't use cookies.\n"),
547 --load-cookies=FILE load cookies from FILE before session.\n"),
549 --save-cookies=FILE save cookies to FILE after session.\n"),
551 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
553 --post-data=STRING use the POST method; send STRING as the data.\n"),
555 --post-file=FILE use the POST method; send contents of FILE.\n"),
557 --content-disposition honor the Content-Disposition header when\n\
558 choosing local file names (EXPERIMENTAL).\n"),
560 --auth-no-challenge Send Basic HTTP authentication information\n\
561 without first waiting for the server's\n\
567 HTTPS (SSL/TLS) options:\n"),
569 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
570 SSLv3, and TLSv1.\n"),
572 --no-check-certificate don't validate the server's certificate.\n"),
574 --certificate=FILE client certificate file.\n"),
576 --certificate-type=TYPE client certificate type, PEM or DER.\n"),
578 --private-key=FILE private key file.\n"),
580 --private-key-type=TYPE private key type, PEM or DER.\n"),
582 --ca-certificate=FILE file with the bundle of CA's.\n"),
584 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
586 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
588 --egd-file=FILE file naming the EGD socket with random data.\n"),
590 #endif /* HAVE_SSL */
595 --ftp-user=USER set ftp user to USER.\n"),
597 --ftp-password=PASS set ftp password to PASS.\n"),
599 --no-remove-listing don't remove `.listing' files.\n"),
601 --no-glob turn off FTP file name globbing.\n"),
603 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
605 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
607 --preserve-permissions preserve remote file permissions.\n"),
611 Recursive download:\n"),
613 -r, --recursive specify recursive download.\n"),
615 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
617 --delete-after delete files locally after downloading them.\n"),
619 -k, --convert-links make links in downloaded HTML or CSS point to\n\
622 -K, --backup-converted before converting file X, back up as X.orig.\n"),
624 -m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
626 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
628 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
632 Recursive accept/reject:\n"),
634 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
636 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
638 -D, --domains=LIST comma-separated list of accepted domains.\n"),
640 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
642 --follow-ftp follow FTP links from HTML documents.\n"),
644 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
646 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
648 -H, --span-hosts go to foreign hosts when recursive.\n"),
650 -L, --relative follow relative links only.\n"),
652 -I, --include-directories=LIST list of allowed directories.\n"),
654 -X, --exclude-directories=LIST list of excluded directories.\n"),
656 -np, --no-parent don't ascend to the parent directory.\n"),
659 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
664 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
668 for (i = 0; i < countof (help); i++)
669 fputs (_(help[i]), stdout);
674 /* Return a human-readable printed representation of INTERVAL,
675 measured in seconds. */
678 secs_to_human_time (double interval)
681 int secs = (int) (interval + 0.5);
682 int hours, mins, days;
684 days = secs / 86400, secs %= 86400;
685 hours = secs / 3600, secs %= 3600;
686 mins = secs / 60, secs %= 60;
689 sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
691 sprintf (buf, "%dh %dm %ds", hours, mins, secs);
693 sprintf (buf, "%dm %ds", mins, secs);
695 sprintf (buf, "%ss", print_decimal (interval));
701 prompt_for_password (void)
704 printf (_("Password for user %s: "), quote (opt.user));
706 printf (_("Password: "));
710 /* Function that prints the line argument while limiting it
711 to at most line_length. prefix is printed on the first line
712 and an appropriate number of spaces are added on subsequent
715 format_and_print_line (const char *prefix, const char *line,
720 char *line_dup, *token;
722 assert (prefix != NULL);
723 assert (line != NULL);
725 line_dup = xstrdup (line);
727 if (line_length <= 0)
728 line_length = max_chars_per_line;
730 leading_spaces = strlen (prefix);
731 printf ("%s", prefix);
732 remaining_chars = line_length - leading_spaces;
733 /* We break on spaces. */
734 token = strtok (line_dup, " ");
735 while (token != NULL)
737 /* If however a token is much larger than the maximum
738 line length, all bets are off and we simply print the
739 token on the next line. */
740 if (remaining_chars <= strlen (token))
742 printf ("\n%*c", leading_spaces, ' ');
743 remaining_chars = line_length - leading_spaces;
745 printf ("%s ", token);
746 remaining_chars -= strlen (token) + 1; // account for " "
747 token = strtok (NULL, " ");
758 const char *options_title = "Options : ";
759 const char *wgetrc_title = "Wgetrc : ";
760 const char *locale_title = "Locale : ";
761 const char *compile_title = "Compile : ";
762 const char *link_title = "Link : ";
763 const char *prefix_spaces = " ";
764 const int prefix_space_length = strlen (prefix_spaces);
766 char *env_wgetrc, *user_wgetrc;
769 printf ("GNU Wget %s\n", version_string);
770 printf (options_title);
771 /* compiled_features is a char*[]. We limit the characters per
772 line to max_chars_per_line and prefix each line with a constant
773 number of spaces for proper alignment. */
774 for (i = 0; compiled_features[i] != NULL; )
776 int line_length = max_chars_per_line - prefix_space_length;
777 while ((line_length > 0) && (compiled_features[i] != NULL))
779 printf ("%s ", compiled_features[i]);
780 line_length -= strlen (compiled_features[i]) + 2;
784 if (compiled_features[i] != NULL)
786 printf (prefix_spaces);
789 /* Handle the case when $WGETRC is unset and $HOME/.wgetrc is
791 printf (wgetrc_title);
792 env_wgetrc = wgetrc_env_file_name ();
793 if (env_wgetrc && *env_wgetrc)
795 printf ("%s (env)\n%s", env_wgetrc, prefix_spaces);
798 user_wgetrc = wgetrc_user_file_name ();
801 printf ("%s (user)\n%s", user_wgetrc, prefix_spaces);
805 printf ("%s (system)\n", SYSTEM_WGETRC);
810 format_and_print_line (locale_title,
814 format_and_print_line (compile_title,
818 format_and_print_line (link_title,
823 /* TRANSLATORS: When available, an actual copyright character
824 (cirle-c) should be used in preference to "(C)". */
826 Copyright (C) 2008 Free Software Foundation, Inc.\n"), stdout);
828 License GPLv3+: GNU GPL version 3 or later\n\
829 <http://www.gnu.org/licenses/gpl.html>.\n\
830 This is free software: you are free to change and redistribute it.\n\
831 There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
832 /* TRANSLATORS: When available, please use the proper diacritics for
833 names such as this one. See en_US.po for reference. */
834 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
836 fputs (_("Currently maintained by Micah Cowan <micah@cowan.name>.\n"),
838 fputs (_("Please send bug reports and questions to <bug-wget@gnu.org>.\n"),
843 char *program_name; /* Needed by lib/error.c. */
846 main (int argc, char **argv)
849 int i, ret, longindex;
851 bool append_to_log = false;
853 program_name = argv[0];
857 /* Construct the name of the executable, without the directory part. */
858 exec_name = strrchr (argv[0], PATH_SEPARATOR);
865 /* Drop extension (typically .EXE) from executable filename. */
866 windows_main ((char **) &exec_name);
869 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
874 while ((ret = getopt_long (argc, argv,
875 short_options, long_options, &longindex)) != -1)
878 struct cmdline_option *opt;
880 /* If LONGINDEX is unchanged, it means RET is referring a short
888 printf (_("Try `%s --help' for more options.\n"), exec_name);
891 /* Find the short option character in the mapping. */
892 longindex = optmap[ret - 32];
894 val = long_options[longindex].val;
896 /* Use the retrieved value to locate the option in the
897 option_data array, and to see if we're dealing with the
898 negated "--no-FOO" variant of the boolean option "--foo". */
899 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
903 setoptval (opt->data, optarg, opt->long_name);
907 /* The user has specified a value -- use it. */
908 setoptval (opt->data, optarg, opt->long_name);
911 /* NEG is true for `--no-FOO' style boolean options. */
912 bool neg = !!(val & BOOLEAN_NEG_MARKER);
913 setoptval (opt->data, neg ? "0" : "1", opt->long_name);
918 void (*func) (void) = (void (*) (void)) opt->data;
922 case OPT__APPEND_OUTPUT:
923 setoptval ("logfile", optarg, opt->long_name);
924 append_to_log = true;
927 run_command (optarg);
931 /* We support real --no-FOO flags now, but keep these
932 short options for convenience and backward
935 for (p = optarg; *p; p++)
939 setoptval ("verbose", "0", opt->long_name);
942 setoptval ("addhostdir", "0", opt->long_name);
945 setoptval ("dirstruct", "0", opt->long_name);
948 setoptval ("noclobber", "1", opt->long_name);
951 setoptval ("noparent", "1", opt->long_name);
954 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
957 printf (_("Try `%s --help' for more options.\n"), exec_name);
965 /* The wgetrc commands are named noparent and noclobber,
966 so we must revert the meaning of the cmdline options
967 before passing the value to setoptval. */
970 flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
971 || (c_tolower (optarg[0]) == 'o'
972 && c_tolower (optarg[1]) == 'n'));
973 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
974 flag ? "0" : "1", opt->long_name);
977 case OPT__DONT_REMOVE_LISTING:
978 setoptval ("removelisting", "0", opt->long_name);
985 nurl = argc - optind;
987 /* All user options have now been processed, so it's now safe to do
988 interoption dependency checks. */
990 if (opt.reclevel == 0)
991 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
993 if (opt.spider || opt.delete_after)
994 opt.no_dirstruct = true;
996 if (opt.page_requisites && !opt.recursive)
998 /* Don't set opt.recursive here because it would confuse the FTP
999 code. Instead, call retrieve_tree below when either
1000 page_requisites or recursive is requested. */
1002 if (!opt.no_dirstruct)
1003 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
1006 if (opt.verbose == -1)
1007 opt.verbose = !opt.quiet;
1009 /* Sanity checks. */
1010 if (opt.verbose && opt.quiet)
1012 printf (_("Can't be verbose and quiet at the same time.\n"));
1016 if (opt.timestamping && opt.noclobber)
1019 Can't timestamp and not clobber old files at the same time.\n"));
1024 if (opt.ipv4_only && opt.ipv6_only)
1026 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
1031 if (opt.output_document)
1033 if (opt.convert_links
1034 && (nurl > 1 || opt.page_requisites || opt.recursive))
1037 Cannot specify both -k and -O if multiple URLs are given, or in combination\n\
1038 with -p or -r. See the manual for details.\n\n"), stdout);
1042 if (opt.page_requisites
1045 logprintf (LOG_NOTQUIET, "%s", _("\
1046 WARNING: combining -O with -r or -p will mean that all downloaded content\n\
1047 will be placed in the single file you specified.\n\n"));
1049 if (opt.timestamping)
1051 logprintf (LOG_NOTQUIET, "%s", _("\
1052 WARNING: timestamping does nothing in combination with -O. See the manual\n\
1053 for details.\n\n"));
1054 opt.timestamping = false;
1056 if (opt.noclobber && file_exists_p(opt.output_document))
1058 /* Check if output file exists; if it does, exit. */
1059 logprintf (LOG_VERBOSE, _("File `%s' already there; not retrieving.\n"), opt.output_document);
1064 if (opt.ask_passwd && opt.passwd)
1066 printf (_("Cannot specify both --ask-password and --password.\n"));
1071 if (!nurl && !opt.input_filename)
1073 /* No URL specified. */
1074 printf (_("%s: missing URL\n"), exec_name);
1077 /* #### Something nicer should be printed here -- similar to the
1078 pre-1.5 `--help' page. */
1079 printf (_("Try `%s --help' for more options.\n"), exec_name);
1086 if (opt.locale && !check_encoding_name (opt.locale))
1090 opt.locale = find_locale ();
1092 if (opt.encoding_remote && !check_encoding_name (opt.encoding_remote))
1093 opt.encoding_remote = NULL;
1096 if (opt.enable_iri || opt.locale || opt.encoding_remote)
1098 /* sXXXav : be more specific... */
1099 printf(_("This version does not have support for IRIs\n"));
1106 opt.passwd = prompt_for_password ();
1108 if (opt.passwd == NULL || opt.passwd[0] == '\0')
1118 fork_to_background ();
1121 /* Initialize progress. Have to do this after the options are
1122 processed so we know where the log file is. */
1124 set_progress_implementation (opt.progress_type);
1126 /* Fill in the arguments. */
1127 url = alloca_array (char *, nurl + 1);
1128 for (i = 0; i < nurl; i++, optind++)
1130 char *rewritten = rewrite_shorthand_url (argv[optind]);
1134 url[i] = xstrdup (argv[optind]);
1138 /* Initialize logging. */
1139 log_init (opt.lfilename, append_to_log);
1141 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
1144 /* Open the output filename if necessary. */
1145 if (opt.output_document)
1147 if (HYPHENP (opt.output_document))
1151 result = freopen (NULL, "wb", stdout);
1154 logputs (LOG_NOTQUIET, _("\
1155 WARNING: Can't reopen standard output in binary mode;\n\
1156 downloaded file may contain inappropriate line endings.\n"));
1159 output_stream = stdout;
1164 output_stream = fopen (opt.output_document,
1165 opt.always_rest ? "ab" : "wb");
1166 if (output_stream == NULL)
1168 perror (opt.output_document);
1171 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
1172 output_stream_regular = true;
1181 /* Setup the signal handler to redirect output when hangup is
1183 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1184 signal(SIGHUP, redirect_output_signal);
1186 /* ...and do the same for SIGUSR1. */
1188 signal (SIGUSR1, redirect_output_signal);
1191 /* Writing to a closed socket normally signals SIGPIPE, and the
1192 process exits. What we want is to ignore SIGPIPE and just check
1193 for the return value of write(). */
1194 signal (SIGPIPE, SIG_IGN);
1197 signal (SIGWINCH, progress_handle_sigwinch);
1200 status = RETROK; /* initialize it, just-in-case */
1201 /* Retrieve the URLs from argument list. */
1202 for (t = url; *t; t++)
1204 char *filename = NULL, *redirected_URL = NULL;
1207 if ((opt.recursive || opt.page_requisites)
1208 && (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (*t)))
1210 int old_follow_ftp = opt.follow_ftp;
1212 /* Turn opt.follow_ftp on in case of recursive FTP retrieval */
1213 if (url_scheme (*t) == SCHEME_FTP)
1216 status = retrieve_tree (*t, NULL);
1218 opt.follow_ftp = old_follow_ftp;
1222 struct iri *i = iri_new ();
1223 set_uri_encoding (i, opt.locale, true);
1224 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt,
1229 if (opt.delete_after && file_exists_p(filename))
1231 DEBUGP (("Removing file due to --delete-after in main():\n"));
1232 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
1233 if (unlink (filename))
1234 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1237 xfree_null (redirected_URL);
1238 xfree_null (filename);
1241 /* And then from the input file, if any. */
1242 if (opt.input_filename)
1245 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
1247 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
1248 opt.input_filename);
1251 /* Print broken links. */
1252 if (opt.recursive && opt.spider)
1254 print_broken_links();
1257 /* Print the downloaded sum. */
1258 if ((opt.recursive || opt.page_requisites
1260 || (opt.input_filename && total_downloaded_bytes != 0))
1262 total_downloaded_bytes != 0)
1264 logprintf (LOG_NOTQUIET,
1265 _("FINISHED --%s--\nDownloaded: %d files, %s in %s (%s)\n"),
1266 datetime_str (time (NULL)),
1268 human_readable (total_downloaded_bytes),
1269 secs_to_human_time (total_download_time),
1270 retr_rate (total_downloaded_bytes, total_download_time));
1271 /* Print quota warning, if exceeded. */
1272 if (opt.quota && total_downloaded_bytes > opt.quota)
1273 logprintf (LOG_NOTQUIET,
1274 _("Download quota of %s EXCEEDED!\n"),
1275 human_readable (opt.quota));
1278 if (opt.cookies_output)
1281 if (opt.convert_links && !opt.delete_after)
1282 convert_all_links ();
1285 for (i = 0; i < nurl; i++)
1289 if (status == RETROK)
1294 #endif /* TESTING */
1296 #if defined(SIGHUP) || defined(SIGUSR1)
1298 /* So the signal_name check doesn't blow when only one is available. */
1306 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
1307 will proceed operation as usual, trying to write into a log file.
1308 If that is impossible, the output will be turned off. */
1311 redirect_output_signal (int sig)
1313 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1314 (sig == SIGUSR1 ? "SIGUSR1" :
1316 log_request_redirect_output (signal_name);
1317 progress_schedule_redirect ();
1318 signal (sig, redirect_output_signal);