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 extern char *system_wgetrc;
76 extern char *locale_dir;
77 /* Used for --version output in print_version */
78 static const int max_chars_per_line = 72;
80 #if defined(SIGHUP) || defined(SIGUSR1)
81 static void redirect_output_signal (int);
84 const char *exec_name;
87 /* Initialize I18N/L10N. That amounts to invoking setlocale, and
88 setting up gettext's message catalog using bindtextdomain and
89 textdomain. Does nothing if NLS is disabled or missing. */
92 i18n_initialize (void)
94 /* ENABLE_NLS implies existence of functions invoked here. */
96 /* Set the current locale. */
97 setlocale (LC_ALL, "");
98 /* Set the text message domain. */
99 bindtextdomain ("wget", LOCALEDIR);
101 #endif /* ENABLE_NLS */
104 /* Definition of command-line options. */
106 static void print_help (void);
107 static void print_version (void);
112 # define IF_SSL(x) NULL
116 # define WHEN_DEBUG(x) x
118 # define WHEN_DEBUG(x) NULL
121 struct cmdline_option {
122 const char *long_name;
128 /* Non-standard options that have to be handled specially in
132 OPT__DONT_REMOVE_LISTING,
137 const void *data; /* for standard options */
138 int argtype; /* for non-standard options */
141 static struct cmdline_option option_data[] =
143 { "accept", 'A', OPT_VALUE, "accept", -1 },
144 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
145 { "ask-password", 0, OPT_BOOLEAN, "askpassword", -1 },
146 { "auth-no-challenge", 0, OPT_BOOLEAN, "authnochallenge", -1 },
147 { "background", 'b', OPT_BOOLEAN, "background", -1 },
148 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
149 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
150 { "base", 'B', OPT_VALUE, "base", -1 },
151 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
152 { IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
153 { IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
154 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
155 { IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
156 { IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
157 { IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
158 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
159 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
160 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
161 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
162 { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
163 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
164 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
165 { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
166 { "default-page", 0, OPT_VALUE, "defaultpage", -1 },
167 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
168 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
169 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
170 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
171 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
172 { "domains", 'D', OPT_VALUE, "domains", -1 },
173 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
174 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
175 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
176 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
177 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
178 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
179 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
180 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
181 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
182 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
183 { "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
184 { "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
185 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
186 { "header", 0, OPT_VALUE, "header", -1 },
187 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
188 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
189 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
190 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
191 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
192 { "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
193 { "http-password", 0, OPT_VALUE, "httppassword", -1 },
194 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
195 { "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
196 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
197 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
198 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
200 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
201 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
203 { "input-file", 'i', OPT_VALUE, "input", -1 },
204 { "iri", 0, OPT_BOOLEAN, "iri", -1 },
205 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
206 { "level", 'l', OPT_VALUE, "reclevel", -1 },
207 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
208 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
209 { "locale", 0, OPT_VALUE, "locale", -1 },
210 { "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
211 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
212 { "no", 'n', OPT__NO, NULL, required_argument },
213 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
214 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
215 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
216 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
217 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
218 { "parent", 0, OPT__PARENT, NULL, optional_argument },
219 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
220 { "password", 0, OPT_VALUE, "password", -1 },
221 { "post-data", 0, OPT_VALUE, "postdata", -1 },
222 { "post-file", 0, OPT_VALUE, "postfile", -1 },
223 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
224 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
225 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
226 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
227 { "progress", 0, OPT_VALUE, "progress", -1 },
228 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
229 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
230 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
231 { "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
232 { "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
233 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
234 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
235 { "quota", 'Q', OPT_VALUE, "quota", -1 },
236 { "random-file", 0, OPT_VALUE, "randomfile", -1 },
237 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
238 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
239 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
240 { "referer", 0, OPT_VALUE, "referer", -1 },
241 { "reject", 'R', OPT_VALUE, "reject", -1 },
242 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
243 { "remote-encoding", 0, OPT_VALUE, "remoteencoding", -1},
244 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
245 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
246 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
247 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
248 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
249 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
250 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
251 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
252 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
253 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
254 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
255 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
256 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
257 { "tries", 't', OPT_VALUE, "tries", -1 },
258 { "user", 0, OPT_VALUE, "user", -1 },
259 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
260 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
261 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
262 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
263 { "wait", 'w', OPT_VALUE, "wait", -1 },
264 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
266 { "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
273 /* Return a string that contains S with "no-" prepended. The string
274 is NUL-terminated and allocated off static storage at Wget
278 no_prefix (const char *s)
280 static char buffer[1024];
281 static char *p = buffer;
284 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
285 if (p + size >= buffer + sizeof (buffer))
288 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
294 /* The arguments that that main passes to getopt_long. */
295 static struct option long_options[2 * countof (option_data) + 1];
296 static char short_options[128];
298 /* Mapping between short option chars and option_data indices. */
299 static unsigned char optmap[96];
301 /* Marker for `--no-FOO' values in long_options. */
302 #define BOOLEAN_NEG_MARKER 1024
304 /* Initialize the long_options array used by getopt_long from the data
310 char *p = short_options;
312 for (i = 0; i < countof (option_data); i++)
314 struct cmdline_option *opt = &option_data[i];
315 struct option *longopt;
318 /* The option is disabled. */
321 longopt = &long_options[o++];
322 longopt->name = opt->long_name;
326 *p++ = opt->short_name;
327 optmap[opt->short_name - 32] = longopt - long_options;
332 longopt->has_arg = required_argument;
337 /* Specify an optional argument for long options, so that
338 --option=off works the same as --no-option, for
339 compatibility with pre-1.10 Wget. However, don't specify
340 optional arguments short-option booleans because they
341 prevent combining of short options. */
342 longopt->has_arg = optional_argument;
343 /* For Boolean options, add the "--no-FOO" variant, which is
344 identical to "--foo", except it has opposite meaning and
345 it doesn't allow an argument. */
346 longopt = &long_options[o++];
347 longopt->name = no_prefix (opt->long_name);
348 longopt->has_arg = no_argument;
349 /* Mask the value so we'll be able to recognize that we're
350 dealing with the false value. */
351 longopt->val = i | BOOLEAN_NEG_MARKER;
354 assert (opt->argtype != -1);
355 longopt->has_arg = opt->argtype;
358 if (longopt->has_arg == required_argument)
360 /* Don't handle optional_argument */
364 /* Terminate short_options. */
366 /* No need for xzero(long_options[o]) because its storage is static
367 and it will be zeroed by default. */
368 assert (o <= countof (long_options));
371 /* Print the usage message. */
375 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
378 /* Print the help message, describing all the available options. If
379 you add an option, be sure to update this list. */
383 /* We split the help text this way to ease translation of individual
385 static const char *help[] = {
388 Mandatory arguments to long options are mandatory for short options too.\n\n"),
392 -V, --version display the version of Wget and exit.\n"),
394 -h, --help print this help.\n"),
396 -b, --background go to background after startup.\n"),
398 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
402 Logging and input file:\n"),
404 -o, --output-file=FILE log messages to FILE.\n"),
406 -a, --append-output=FILE append messages to FILE.\n"),
409 -d, --debug print lots of debugging information.\n"),
413 --wdebug print Watt-32 debug output.\n"),
416 -q, --quiet quiet (no output).\n"),
418 -v, --verbose be verbose (this is the default).\n"),
420 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
422 -i, --input-file=FILE download URLs found in local or external FILE.\n"),
424 -F, --force-html treat input file as HTML.\n"),
426 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
432 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
434 --retry-connrefused retry even if connection is refused.\n"),
436 -O, --output-document=FILE write documents to FILE.\n"),
438 -nc, --no-clobber skip downloads that would download to\n\
441 -c, --continue resume getting a partially-downloaded file.\n"),
443 --progress=TYPE select progress gauge type.\n"),
445 -N, --timestamping don't re-retrieve files unless newer than\n\
448 -S, --server-response print server response.\n"),
450 --spider don't download anything.\n"),
452 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
454 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
456 --connect-timeout=SECS set the connect timeout to SECS.\n"),
458 --read-timeout=SECS set the read timeout to SECS.\n"),
460 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
462 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
464 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
466 --no-proxy explicitly turn off proxy.\n"),
468 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
470 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
472 --limit-rate=RATE limit download rate to RATE.\n"),
474 --no-dns-cache disable caching DNS lookups.\n"),
476 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
478 --ignore-case ignore case when matching files/directories.\n"),
481 -4, --inet4-only connect only to IPv4 addresses.\n"),
483 -6, --inet6-only connect only to IPv6 addresses.\n"),
485 --prefer-family=FAMILY connect first to addresses of specified family,\n\
486 one of IPv6, IPv4, or none.\n"),
489 --user=USER set both ftp and http user to USER.\n"),
491 --password=PASS set both ftp and http password to PASS.\n"),
493 --ask-password prompt for passwords.\n"),
499 -nd, --no-directories don't create directories.\n"),
501 -x, --force-directories force creation of directories.\n"),
503 -nH, --no-host-directories don't create host directories.\n"),
505 --protocol-directories use protocol name in directories.\n"),
507 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
509 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
515 --http-user=USER set http user to USER.\n"),
517 --http-password=PASS set http password to PASS.\n"),
519 --no-cache disallow server-cached data.\n"),
521 --default-page=NAME Change the default page name (normally\n\
522 this is `index.html'.).\n"),
524 -E, --html-extension save HTML documents with `.html' extension.\n"),
526 --ignore-length ignore `Content-Length' header field.\n"),
528 --header=STRING insert STRING among the headers.\n"),
530 --max-redirect maximum redirections allowed per page.\n"),
532 --proxy-user=USER set USER as proxy username.\n"),
534 --proxy-password=PASS set PASS as proxy password.\n"),
536 --referer=URL include `Referer: URL' header in HTTP request.\n"),
538 --save-headers save the HTTP headers to file.\n"),
540 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
542 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
544 --no-cookies don't use cookies.\n"),
546 --load-cookies=FILE load cookies from FILE before session.\n"),
548 --save-cookies=FILE save cookies to FILE after session.\n"),
550 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
552 --post-data=STRING use the POST method; send STRING as the data.\n"),
554 --post-file=FILE use the POST method; send contents of FILE.\n"),
556 --content-disposition honor the Content-Disposition header when\n\
557 choosing local file names (EXPERIMENTAL).\n"),
559 --auth-no-challenge Send Basic HTTP authentication information\n\
560 without first waiting for the server's\n\
566 HTTPS (SSL/TLS) options:\n"),
568 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
569 SSLv3, and TLSv1.\n"),
571 --no-check-certificate don't validate the server's certificate.\n"),
573 --certificate=FILE client certificate file.\n"),
575 --certificate-type=TYPE client certificate type, PEM or DER.\n"),
577 --private-key=FILE private key file.\n"),
579 --private-key-type=TYPE private key type, PEM or DER.\n"),
581 --ca-certificate=FILE file with the bundle of CA's.\n"),
583 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
585 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
587 --egd-file=FILE file naming the EGD socket with random data.\n"),
589 #endif /* HAVE_SSL */
594 --ftp-user=USER set ftp user to USER.\n"),
596 --ftp-password=PASS set ftp password to PASS.\n"),
598 --no-remove-listing don't remove `.listing' files.\n"),
600 --no-glob turn off FTP file name globbing.\n"),
602 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
604 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
606 --preserve-permissions preserve remote file permissions.\n"),
610 Recursive download:\n"),
612 -r, --recursive specify recursive download.\n"),
614 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
616 --delete-after delete files locally after downloading them.\n"),
618 -k, --convert-links make links in downloaded HTML or CSS point to\n\
621 -K, --backup-converted before converting file X, back up as X.orig.\n"),
623 -m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
625 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
627 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
631 Recursive accept/reject:\n"),
633 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
635 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
637 -D, --domains=LIST comma-separated list of accepted domains.\n"),
639 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
641 --follow-ftp follow FTP links from HTML documents.\n"),
643 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
645 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
647 -H, --span-hosts go to foreign hosts when recursive.\n"),
649 -L, --relative follow relative links only.\n"),
651 -I, --include-directories=LIST list of allowed directories.\n"),
653 -X, --exclude-directories=LIST list of excluded directories.\n"),
655 -np, --no-parent don't ascend to the parent directory.\n"),
658 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
663 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
667 for (i = 0; i < countof (help); i++)
668 fputs (_(help[i]), stdout);
673 /* Return a human-readable printed representation of INTERVAL,
674 measured in seconds. */
677 secs_to_human_time (double interval)
680 int secs = (int) (interval + 0.5);
681 int hours, mins, days;
683 days = secs / 86400, secs %= 86400;
684 hours = secs / 3600, secs %= 3600;
685 mins = secs / 60, secs %= 60;
688 sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
690 sprintf (buf, "%dh %dm %ds", hours, mins, secs);
692 sprintf (buf, "%dm %ds", mins, secs);
694 sprintf (buf, "%ss", print_decimal (interval));
700 prompt_for_password (void)
703 printf (_("Password for user %s: "), quote (opt.user));
705 printf (_("Password: "));
709 /* Function that prints the line argument while limiting it
710 to at most line_length. prefix is printed on the first line
711 and an appropriate number of spaces are added on subsequent
714 format_and_print_line (char* prefix, char* line,
717 assert (prefix != NULL);
718 assert (line != NULL);
720 if (line_length <= 0)
721 line_length = max_chars_per_line;
723 const int leading_spaces = strlen (prefix);
724 printf ("%s", prefix);
725 int remaining_chars = line_length - leading_spaces;
726 /* We break on spaces. */
727 char* token = strtok (line, " ");
728 while (token != NULL)
730 /* If however a token is much larger than the maximum
731 line length, all bets are off and we simply print the
732 token on the next line. */
733 if (remaining_chars <= strlen (token))
737 for (j = 0; j < leading_spaces; j++)
741 remaining_chars = line_length - leading_spaces;
743 printf ("%s ", token);
744 remaining_chars -= strlen (token) + 1; // account for " "
745 token = strtok (NULL, " ");
756 const char *options_title = "Options : ";
757 const char *wgetrc_title = "Wgetrc : ";
758 const char *locale_title = "Locale : ";
759 const char *compile_title = "Compile : ";
760 const char *link_title = "Link : ";
761 const char *prefix_spaces = " ";
762 const int prefix_space_length = strlen (prefix_spaces);
764 printf ("GNU Wget %s\n", version_string);
765 printf (options_title);
766 /* compiled_features is a char*[]. We limit the characters per
767 line to max_chars_per_line and prefix each line with a constant
768 number of spaces for proper alignment. */
770 for (i = 0; compiled_features[i] != NULL; )
772 int line_length = max_chars_per_line - prefix_space_length;
773 while ((line_length > 0) && (compiled_features[i] != NULL))
775 printf ("%s ", compiled_features[i]);
776 line_length -= strlen (compiled_features[i]) + 2;
780 if (compiled_features[i] != NULL)
782 printf (prefix_spaces);
785 /* Handle the case when $WGETRC is unset and $HOME/.wgetrc is
787 printf (wgetrc_title);
788 char *env_wgetrc = wgetrc_env_file_name ();
789 if (env_wgetrc && *env_wgetrc)
791 printf ("%s (env)\n%s", env_wgetrc, prefix_spaces);
794 char *user_wgetrc = wgetrc_user_file_name ();
797 printf ("%s (user)\n%s", user_wgetrc, prefix_spaces);
800 printf ("%s (system)\n", system_wgetrc);
802 format_and_print_line (strdup (locale_title),
806 format_and_print_line (strdup (compile_title),
807 strdup (compilation_string),
810 format_and_print_line (strdup (link_title),
811 strdup (link_string),
814 /* TRANSLATORS: When available, an actual copyright character
815 (cirle-c) should be used in preference to "(C)". */
817 Copyright (C) 2008 Free Software Foundation, Inc.\n"), stdout);
819 License GPLv3+: GNU GPL version 3 or later\n\
820 <http://www.gnu.org/licenses/gpl.html>.\n\
821 This is free software: you are free to change and redistribute it.\n\
822 There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
823 /* TRANSLATORS: When available, please use the proper diacritics for
824 names such as this one. See en_US.po for reference. */
825 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
827 fputs (_("Currently maintained by Micah Cowan <micah@cowan.name>.\n"),
833 main (int argc, char **argv)
836 int i, ret, longindex;
838 bool append_to_log = false;
842 /* Construct the name of the executable, without the directory part. */
843 exec_name = strrchr (argv[0], PATH_SEPARATOR);
850 /* Drop extension (typically .EXE) from executable filename. */
851 windows_main ((char **) &exec_name);
854 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
859 while ((ret = getopt_long (argc, argv,
860 short_options, long_options, &longindex)) != -1)
863 struct cmdline_option *opt;
865 /* If LONGINDEX is unchanged, it means RET is referring a short
873 printf (_("Try `%s --help' for more options.\n"), exec_name);
876 /* Find the short option character in the mapping. */
877 longindex = optmap[ret - 32];
879 val = long_options[longindex].val;
881 /* Use the retrieved value to locate the option in the
882 option_data array, and to see if we're dealing with the
883 negated "--no-FOO" variant of the boolean option "--foo". */
884 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
888 setoptval (opt->data, optarg, opt->long_name);
892 /* The user has specified a value -- use it. */
893 setoptval (opt->data, optarg, opt->long_name);
896 /* NEG is true for `--no-FOO' style boolean options. */
897 bool neg = !!(val & BOOLEAN_NEG_MARKER);
898 setoptval (opt->data, neg ? "0" : "1", opt->long_name);
903 void (*func) (void) = (void (*) (void)) opt->data;
907 case OPT__APPEND_OUTPUT:
908 setoptval ("logfile", optarg, opt->long_name);
909 append_to_log = true;
912 run_command (optarg);
916 /* We support real --no-FOO flags now, but keep these
917 short options for convenience and backward
920 for (p = optarg; *p; p++)
924 setoptval ("verbose", "0", opt->long_name);
927 setoptval ("addhostdir", "0", opt->long_name);
930 setoptval ("dirstruct", "0", opt->long_name);
933 setoptval ("noclobber", "1", opt->long_name);
936 setoptval ("noparent", "1", opt->long_name);
939 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
942 printf (_("Try `%s --help' for more options.\n"), exec_name);
950 /* The wgetrc commands are named noparent and noclobber,
951 so we must revert the meaning of the cmdline options
952 before passing the value to setoptval. */
955 flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
956 || (c_tolower (optarg[0]) == 'o'
957 && c_tolower (optarg[1]) == 'n'));
958 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
959 flag ? "0" : "1", opt->long_name);
962 case OPT__DONT_REMOVE_LISTING:
963 setoptval ("removelisting", "0", opt->long_name);
970 nurl = argc - optind;
972 /* All user options have now been processed, so it's now safe to do
973 interoption dependency checks. */
975 if (opt.reclevel == 0)
976 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
978 if (opt.spider || opt.delete_after)
979 opt.no_dirstruct = true;
981 if (opt.page_requisites && !opt.recursive)
983 /* Don't set opt.recursive here because it would confuse the FTP
984 code. Instead, call retrieve_tree below when either
985 page_requisites or recursive is requested. */
987 if (!opt.no_dirstruct)
988 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
991 if (opt.verbose == -1)
992 opt.verbose = !opt.quiet;
995 if (opt.verbose && opt.quiet)
997 printf (_("Can't be verbose and quiet at the same time.\n"));
1001 if (opt.timestamping && opt.noclobber)
1004 Can't timestamp and not clobber old files at the same time.\n"));
1009 if (opt.ipv4_only && opt.ipv6_only)
1011 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
1016 if (opt.output_document)
1018 if (opt.convert_links
1019 && (nurl > 1 || opt.page_requisites || opt.recursive))
1022 Cannot specify both -k and -O if multiple URLs are given, or in combination\n\
1023 with -p or -r. See the manual for details.\n\n"), stdout);
1027 if (opt.page_requisites
1030 logprintf (LOG_NOTQUIET, "%s", _("\
1031 WARNING: combining -O with -r or -p will mean that all downloaded content\n\
1032 will be placed in the single file you specified.\n\n"));
1034 if (opt.timestamping)
1036 logprintf (LOG_NOTQUIET, "%s", _("\
1037 WARNING: timestamping does nothing in combination with -O. See the manual\n\
1038 for details.\n\n"));
1039 opt.timestamping = false;
1041 if (opt.noclobber && file_exists_p(opt.output_document))
1043 /* Check if output file exists; if it does, exit. */
1044 logprintf (LOG_VERBOSE, _("File `%s' already there; not retrieving.\n"), opt.output_document);
1049 if (opt.ask_passwd && opt.passwd)
1051 printf (_("Cannot specify both --ask-password and --password.\n"));
1056 if (!nurl && !opt.input_filename)
1058 /* No URL specified. */
1059 printf (_("%s: missing URL\n"), exec_name);
1062 /* #### Something nicer should be printed here -- similar to the
1063 pre-1.5 `--help' page. */
1064 printf (_("Try `%s --help' for more options.\n"), exec_name);
1071 if (opt.locale && !check_encoding_name (opt.locale))
1075 opt.locale = find_locale ();
1077 if (opt.encoding_remote && !check_encoding_name (opt.encoding_remote))
1078 opt.encoding_remote = NULL;
1080 /*logprintf (LOG_VERBOSE, "Locale = %s\n", quote (opt.locale));*/
1083 if (opt.enable_iri || opt.locale || opt.encoding_remote)
1085 /* sXXXav : be more specific... */
1086 printf(_("This version does not have support for IRIs\n"));
1093 opt.passwd = prompt_for_password ();
1095 if (opt.passwd == NULL || opt.passwd[0] == '\0')
1105 fork_to_background ();
1108 /* Initialize progress. Have to do this after the options are
1109 processed so we know where the log file is. */
1111 set_progress_implementation (opt.progress_type);
1113 /* Fill in the arguments. */
1114 url = alloca_array (char *, nurl + 1);
1115 for (i = 0; i < nurl; i++, optind++)
1117 char *rewritten = rewrite_shorthand_url (argv[optind]);
1121 url[i] = xstrdup (argv[optind]);
1125 /* Initialize logging. */
1126 log_init (opt.lfilename, append_to_log);
1128 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
1131 /* Open the output filename if necessary. */
1132 if (opt.output_document)
1134 if (HYPHENP (opt.output_document))
1138 result = freopen (NULL, "wb", stdout);
1141 logputs (LOG_NOTQUIET, _("\
1142 WARNING: Can't reopen standard output in binary mode;\n\
1143 downloaded file may contain inappropriate line endings.\n"));
1146 output_stream = stdout;
1151 output_stream = fopen (opt.output_document,
1152 opt.always_rest ? "ab" : "wb");
1153 if (output_stream == NULL)
1155 perror (opt.output_document);
1158 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
1159 output_stream_regular = true;
1168 /* Setup the signal handler to redirect output when hangup is
1170 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1171 signal(SIGHUP, redirect_output_signal);
1173 /* ...and do the same for SIGUSR1. */
1175 signal (SIGUSR1, redirect_output_signal);
1178 /* Writing to a closed socket normally signals SIGPIPE, and the
1179 process exits. What we want is to ignore SIGPIPE and just check
1180 for the return value of write(). */
1181 signal (SIGPIPE, SIG_IGN);
1184 signal (SIGWINCH, progress_handle_sigwinch);
1187 status = RETROK; /* initialize it, just-in-case */
1188 /* Retrieve the URLs from argument list. */
1189 for (t = url; *t; t++)
1191 char *filename = NULL, *redirected_URL = NULL;
1194 if ((opt.recursive || opt.page_requisites)
1195 && (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (*t)))
1197 int old_follow_ftp = opt.follow_ftp;
1199 /* Turn opt.follow_ftp on in case of recursive FTP retrieval */
1200 if (url_scheme (*t) == SCHEME_FTP)
1203 status = retrieve_tree (*t, NULL);
1205 opt.follow_ftp = old_follow_ftp;
1209 struct iri *i = iri_new ();
1210 set_uri_encoding (i, opt.locale, true);
1211 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt,
1216 if (opt.delete_after && file_exists_p(filename))
1218 DEBUGP (("Removing file due to --delete-after in main():\n"));
1219 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
1220 if (unlink (filename))
1221 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1224 xfree_null (redirected_URL);
1225 xfree_null (filename);
1228 /* And then from the input file, if any. */
1229 if (opt.input_filename)
1232 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
1234 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
1235 opt.input_filename);
1238 /* Print broken links. */
1239 if (opt.recursive && opt.spider)
1241 print_broken_links();
1244 /* Print the downloaded sum. */
1245 if ((opt.recursive || opt.page_requisites
1247 || (opt.input_filename && total_downloaded_bytes != 0))
1249 total_downloaded_bytes != 0)
1251 logprintf (LOG_NOTQUIET,
1252 _("FINISHED --%s--\nDownloaded: %d files, %s in %s (%s)\n"),
1253 datetime_str (time (NULL)),
1255 human_readable (total_downloaded_bytes),
1256 secs_to_human_time (total_download_time),
1257 retr_rate (total_downloaded_bytes, total_download_time));
1258 /* Print quota warning, if exceeded. */
1259 if (opt.quota && total_downloaded_bytes > opt.quota)
1260 logprintf (LOG_NOTQUIET,
1261 _("Download quota of %s EXCEEDED!\n"),
1262 human_readable (opt.quota));
1265 if (opt.cookies_output)
1268 if (opt.convert_links && !opt.delete_after)
1269 convert_all_links ();
1272 for (i = 0; i < nurl; i++)
1276 if (status == RETROK)
1281 #endif /* TESTING */
1283 #if defined(SIGHUP) || defined(SIGUSR1)
1285 /* So the signal_name check doesn't blow when only one is available. */
1293 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
1294 will proceed operation as usual, trying to write into a log file.
1295 If that is impossible, the output will be turned off. */
1298 redirect_output_signal (int sig)
1300 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1301 (sig == SIGUSR1 ? "SIGUSR1" :
1303 log_request_redirect_output (signal_name);
1304 progress_schedule_redirect ();
1305 signal (sig, redirect_output_signal);