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;
85 /* Initialize I18N/L10N. That amounts to invoking setlocale, and
86 setting up gettext's message catalog using bindtextdomain and
87 textdomain. Does nothing if NLS is disabled or missing. */
90 i18n_initialize (void)
92 /* ENABLE_NLS implies existence of functions invoked here. */
94 /* Set the current locale. */
95 setlocale (LC_ALL, "");
96 /* Set the text message domain. */
97 bindtextdomain ("wget", LOCALEDIR);
99 #endif /* ENABLE_NLS */
102 /* Definition of command-line options. */
104 static void print_help (void);
105 static void print_version (void);
110 # define IF_SSL(x) NULL
114 # define WHEN_DEBUG(x) x
116 # define WHEN_DEBUG(x) NULL
119 struct cmdline_option {
120 const char *long_name;
126 /* Non-standard options that have to be handled specially in
130 OPT__DONT_REMOVE_LISTING,
135 const void *data; /* for standard options */
136 int argtype; /* for non-standard options */
139 static struct cmdline_option option_data[] =
141 { "accept", 'A', OPT_VALUE, "accept", -1 },
142 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
143 { "ask-password", 0, OPT_BOOLEAN, "askpassword", -1 },
144 { "auth-no-challenge", 0, OPT_BOOLEAN, "authnochallenge", -1 },
145 { "background", 'b', OPT_BOOLEAN, "background", -1 },
146 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
147 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
148 { "base", 'B', OPT_VALUE, "base", -1 },
149 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
150 { IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
151 { IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
152 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
153 { IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
154 { IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
155 { IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
156 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
157 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
158 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
159 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
160 { "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
161 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
162 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
163 { WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
164 { "default-page", 0, OPT_VALUE, "defaultpage", -1 },
165 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
166 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
167 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
168 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
169 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
170 { "domains", 'D', OPT_VALUE, "domains", -1 },
171 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
172 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
173 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
174 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
175 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
176 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
177 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
178 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
179 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
180 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
181 { "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
182 { "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
183 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
184 { "header", 0, OPT_VALUE, "header", -1 },
185 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
186 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
187 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
188 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
189 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
190 { "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
191 { "http-password", 0, OPT_VALUE, "httppassword", -1 },
192 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
193 { "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
194 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
195 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
196 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
198 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
199 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
201 { "input-file", 'i', OPT_VALUE, "input", -1 },
202 { "iri", 0, OPT_BOOLEAN, "iri", -1 },
203 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
204 { "level", 'l', OPT_VALUE, "reclevel", -1 },
205 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
206 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
207 { "locale", 0, OPT_VALUE, "locale", -1 },
208 { "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
209 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
210 { "no", 'n', OPT__NO, NULL, required_argument },
211 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
212 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
213 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
214 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
215 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
216 { "parent", 0, OPT__PARENT, NULL, optional_argument },
217 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
218 { "password", 0, OPT_VALUE, "password", -1 },
219 { "post-data", 0, OPT_VALUE, "postdata", -1 },
220 { "post-file", 0, OPT_VALUE, "postfile", -1 },
221 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
222 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
223 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
224 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
225 { "progress", 0, OPT_VALUE, "progress", -1 },
226 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
227 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
228 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
229 { "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
230 { "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
231 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
232 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
233 { "quota", 'Q', OPT_VALUE, "quota", -1 },
234 { "random-file", 0, OPT_VALUE, "randomfile", -1 },
235 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
236 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
237 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
238 { "referer", 0, OPT_VALUE, "referer", -1 },
239 { "reject", 'R', OPT_VALUE, "reject", -1 },
240 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
241 { "remote-encoding", 0, OPT_VALUE, "remoteencoding", -1},
242 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
243 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
244 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
245 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
246 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
247 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
248 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
249 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
250 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
251 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
252 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
253 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
254 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
255 { "tries", 't', OPT_VALUE, "tries", -1 },
256 { "user", 0, OPT_VALUE, "user", -1 },
257 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
258 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
259 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
260 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
261 { "wait", 'w', OPT_VALUE, "wait", -1 },
262 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
264 { "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
271 /* Return a string that contains S with "no-" prepended. The string
272 is NUL-terminated and allocated off static storage at Wget
276 no_prefix (const char *s)
278 static char buffer[1024];
279 static char *p = buffer;
282 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
283 if (p + size >= buffer + sizeof (buffer))
286 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
292 /* The arguments that that main passes to getopt_long. */
293 static struct option long_options[2 * countof (option_data) + 1];
294 static char short_options[128];
296 /* Mapping between short option chars and option_data indices. */
297 static unsigned char optmap[96];
299 /* Marker for `--no-FOO' values in long_options. */
300 #define BOOLEAN_NEG_MARKER 1024
302 /* Initialize the long_options array used by getopt_long from the data
308 char *p = short_options;
310 for (i = 0; i < countof (option_data); i++)
312 struct cmdline_option *opt = &option_data[i];
313 struct option *longopt;
316 /* The option is disabled. */
319 longopt = &long_options[o++];
320 longopt->name = opt->long_name;
324 *p++ = opt->short_name;
325 optmap[opt->short_name - 32] = longopt - long_options;
330 longopt->has_arg = required_argument;
335 /* Specify an optional argument for long options, so that
336 --option=off works the same as --no-option, for
337 compatibility with pre-1.10 Wget. However, don't specify
338 optional arguments short-option booleans because they
339 prevent combining of short options. */
340 longopt->has_arg = optional_argument;
341 /* For Boolean options, add the "--no-FOO" variant, which is
342 identical to "--foo", except it has opposite meaning and
343 it doesn't allow an argument. */
344 longopt = &long_options[o++];
345 longopt->name = no_prefix (opt->long_name);
346 longopt->has_arg = no_argument;
347 /* Mask the value so we'll be able to recognize that we're
348 dealing with the false value. */
349 longopt->val = i | BOOLEAN_NEG_MARKER;
352 assert (opt->argtype != -1);
353 longopt->has_arg = opt->argtype;
356 if (longopt->has_arg == required_argument)
358 /* Don't handle optional_argument */
362 /* Terminate short_options. */
364 /* No need for xzero(long_options[o]) because its storage is static
365 and it will be zeroed by default. */
366 assert (o <= countof (long_options));
369 /* Print the usage message. */
373 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
376 /* Print the help message, describing all the available options. If
377 you add an option, be sure to update this list. */
381 /* We split the help text this way to ease translation of individual
383 static const char *help[] = {
386 Mandatory arguments to long options are mandatory for short options too.\n\n"),
390 -V, --version display the version of Wget and exit.\n"),
392 -h, --help print this help.\n"),
394 -b, --background go to background after startup.\n"),
396 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
400 Logging and input file:\n"),
402 -o, --output-file=FILE log messages to FILE.\n"),
404 -a, --append-output=FILE append messages to FILE.\n"),
407 -d, --debug print lots of debugging information.\n"),
411 --wdebug print Watt-32 debug output.\n"),
414 -q, --quiet quiet (no output).\n"),
416 -v, --verbose be verbose (this is the default).\n"),
418 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
420 -i, --input-file=FILE download URLs found in local or external FILE.\n"),
422 -F, --force-html treat input file as HTML.\n"),
424 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
430 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
432 --retry-connrefused retry even if connection is refused.\n"),
434 -O, --output-document=FILE write documents to FILE.\n"),
436 -nc, --no-clobber skip downloads that would download to\n\
439 -c, --continue resume getting a partially-downloaded file.\n"),
441 --progress=TYPE select progress gauge type.\n"),
443 -N, --timestamping don't re-retrieve files unless newer than\n\
446 -S, --server-response print server response.\n"),
448 --spider don't download anything.\n"),
450 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
452 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
454 --connect-timeout=SECS set the connect timeout to SECS.\n"),
456 --read-timeout=SECS set the read timeout to SECS.\n"),
458 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
460 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
462 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
464 --no-proxy explicitly turn off proxy.\n"),
466 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
468 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
470 --limit-rate=RATE limit download rate to RATE.\n"),
472 --no-dns-cache disable caching DNS lookups.\n"),
474 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
476 --ignore-case ignore case when matching files/directories.\n"),
479 -4, --inet4-only connect only to IPv4 addresses.\n"),
481 -6, --inet6-only connect only to IPv6 addresses.\n"),
483 --prefer-family=FAMILY connect first to addresses of specified family,\n\
484 one of IPv6, IPv4, or none.\n"),
487 --user=USER set both ftp and http user to USER.\n"),
489 --password=PASS set both ftp and http password to PASS.\n"),
491 --ask-password prompt for passwords.\n"),
497 -nd, --no-directories don't create directories.\n"),
499 -x, --force-directories force creation of directories.\n"),
501 -nH, --no-host-directories don't create host directories.\n"),
503 --protocol-directories use protocol name in directories.\n"),
505 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
507 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
513 --http-user=USER set http user to USER.\n"),
515 --http-password=PASS set http password to PASS.\n"),
517 --no-cache disallow server-cached data.\n"),
519 --default-page=NAME Change the default page name (normally\n\
520 this is `index.html'.).\n"),
522 -E, --html-extension save HTML documents with `.html' extension.\n"),
524 --ignore-length ignore `Content-Length' header field.\n"),
526 --header=STRING insert STRING among the headers.\n"),
528 --max-redirect maximum redirections allowed per page.\n"),
530 --proxy-user=USER set USER as proxy username.\n"),
532 --proxy-password=PASS set PASS as proxy password.\n"),
534 --referer=URL include `Referer: URL' header in HTTP request.\n"),
536 --save-headers save the HTTP headers to file.\n"),
538 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
540 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
542 --no-cookies don't use cookies.\n"),
544 --load-cookies=FILE load cookies from FILE before session.\n"),
546 --save-cookies=FILE save cookies to FILE after session.\n"),
548 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
550 --post-data=STRING use the POST method; send STRING as the data.\n"),
552 --post-file=FILE use the POST method; send contents of FILE.\n"),
554 --content-disposition honor the Content-Disposition header when\n\
555 choosing local file names (EXPERIMENTAL).\n"),
557 --auth-no-challenge Send Basic HTTP authentication information\n\
558 without first waiting for the server's\n\
564 HTTPS (SSL/TLS) options:\n"),
566 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
567 SSLv3, and TLSv1.\n"),
569 --no-check-certificate don't validate the server's certificate.\n"),
571 --certificate=FILE client certificate file.\n"),
573 --certificate-type=TYPE client certificate type, PEM or DER.\n"),
575 --private-key=FILE private key file.\n"),
577 --private-key-type=TYPE private key type, PEM or DER.\n"),
579 --ca-certificate=FILE file with the bundle of CA's.\n"),
581 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
583 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
585 --egd-file=FILE file naming the EGD socket with random data.\n"),
587 #endif /* HAVE_SSL */
592 --ftp-user=USER set ftp user to USER.\n"),
594 --ftp-password=PASS set ftp password to PASS.\n"),
596 --no-remove-listing don't remove `.listing' files.\n"),
598 --no-glob turn off FTP file name globbing.\n"),
600 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
602 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
604 --preserve-permissions preserve remote file permissions.\n"),
608 Recursive download:\n"),
610 -r, --recursive specify recursive download.\n"),
612 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
614 --delete-after delete files locally after downloading them.\n"),
616 -k, --convert-links make links in downloaded HTML or CSS point to\n\
619 -K, --backup-converted before converting file X, back up as X.orig.\n"),
621 -m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
623 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
625 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
629 Recursive accept/reject:\n"),
631 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
633 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
635 -D, --domains=LIST comma-separated list of accepted domains.\n"),
637 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
639 --follow-ftp follow FTP links from HTML documents.\n"),
641 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
643 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
645 -H, --span-hosts go to foreign hosts when recursive.\n"),
647 -L, --relative follow relative links only.\n"),
649 -I, --include-directories=LIST list of allowed directories.\n"),
651 -X, --exclude-directories=LIST list of excluded directories.\n"),
653 -np, --no-parent don't ascend to the parent directory.\n"),
656 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
661 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
665 for (i = 0; i < countof (help); i++)
666 fputs (_(help[i]), stdout);
671 /* Return a human-readable printed representation of INTERVAL,
672 measured in seconds. */
675 secs_to_human_time (double interval)
678 int secs = (int) (interval + 0.5);
679 int hours, mins, days;
681 days = secs / 86400, secs %= 86400;
682 hours = secs / 3600, secs %= 3600;
683 mins = secs / 60, secs %= 60;
686 sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
688 sprintf (buf, "%dh %dm %ds", hours, mins, secs);
690 sprintf (buf, "%dm %ds", mins, secs);
692 sprintf (buf, "%ss", print_decimal (interval));
698 prompt_for_password (void)
701 printf (_("Password for user %s: "), quote (opt.user));
703 printf (_("Password: "));
707 /* Function that prints the line argument while limiting it
708 to at most line_length. prefix is printed on the first line
709 and an appropriate number of spaces are added on subsequent
712 format_and_print_line (const char *prefix, const char *line,
717 char *line_dup, *token;
719 assert (prefix != NULL);
720 assert (line != NULL);
722 line_dup = xstrdup (line);
724 if (line_length <= 0)
725 line_length = max_chars_per_line;
727 leading_spaces = strlen (prefix);
728 printf ("%s", prefix);
729 remaining_chars = line_length - leading_spaces;
730 /* We break on spaces. */
731 token = strtok (line_dup, " ");
732 while (token != NULL)
734 /* If however a token is much larger than the maximum
735 line length, all bets are off and we simply print the
736 token on the next line. */
737 if (remaining_chars <= strlen (token))
742 for (j = 0; j < leading_spaces; j++)
746 remaining_chars = line_length - leading_spaces;
748 printf ("%s ", token);
749 remaining_chars -= strlen (token) + 1; // account for " "
750 token = strtok (NULL, " ");
761 const char *options_title = "Options : ";
762 const char *wgetrc_title = "Wgetrc : ";
763 const char *locale_title = "Locale : ";
764 const char *compile_title = "Compile : ";
765 const char *link_title = "Link : ";
766 const char *prefix_spaces = " ";
767 const int prefix_space_length = strlen (prefix_spaces);
769 char *env_wgetrc, *user_wgetrc;
772 printf ("GNU Wget %s\n", version_string);
773 printf (options_title);
774 /* compiled_features is a char*[]. We limit the characters per
775 line to max_chars_per_line and prefix each line with a constant
776 number of spaces for proper alignment. */
777 for (i = 0; compiled_features[i] != NULL; )
779 int line_length = max_chars_per_line - prefix_space_length;
780 while ((line_length > 0) && (compiled_features[i] != NULL))
782 printf ("%s ", compiled_features[i]);
783 line_length -= strlen (compiled_features[i]) + 2;
787 if (compiled_features[i] != NULL)
789 printf (prefix_spaces);
792 /* Handle the case when $WGETRC is unset and $HOME/.wgetrc is
794 printf (wgetrc_title);
795 env_wgetrc = wgetrc_env_file_name ();
796 if (env_wgetrc && *env_wgetrc)
798 printf ("%s (env)\n%s", env_wgetrc, prefix_spaces);
801 user_wgetrc = wgetrc_user_file_name ();
804 printf ("%s (user)\n%s", user_wgetrc, prefix_spaces);
808 printf ("%s (system)\n", SYSTEM_WGETRC);
813 format_and_print_line (locale_title,
817 format_and_print_line (compile_title,
821 format_and_print_line (link_title,
826 /* TRANSLATORS: When available, an actual copyright character
827 (cirle-c) should be used in preference to "(C)". */
829 Copyright (C) 2008 Free Software Foundation, Inc.\n"), stdout);
831 License GPLv3+: GNU GPL version 3 or later\n\
832 <http://www.gnu.org/licenses/gpl.html>.\n\
833 This is free software: you are free to change and redistribute it.\n\
834 There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
835 /* TRANSLATORS: When available, please use the proper diacritics for
836 names such as this one. See en_US.po for reference. */
837 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
839 fputs (_("Currently maintained by Micah Cowan <micah@cowan.name>.\n"),
841 fputs (_("Please send bug reports and questions to <bug-wget@gnu.org>.\n"),
846 char *program_name; /* Needed by lib/error.c. */
849 main (int argc, char **argv)
852 int i, ret, longindex;
854 bool append_to_log = false;
856 program_name = argv[0];
860 /* Construct the name of the executable, without the directory part. */
861 exec_name = strrchr (argv[0], PATH_SEPARATOR);
868 /* Drop extension (typically .EXE) from executable filename. */
869 windows_main ((char **) &exec_name);
872 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
877 while ((ret = getopt_long (argc, argv,
878 short_options, long_options, &longindex)) != -1)
881 struct cmdline_option *opt;
883 /* If LONGINDEX is unchanged, it means RET is referring a short
891 printf (_("Try `%s --help' for more options.\n"), exec_name);
894 /* Find the short option character in the mapping. */
895 longindex = optmap[ret - 32];
897 val = long_options[longindex].val;
899 /* Use the retrieved value to locate the option in the
900 option_data array, and to see if we're dealing with the
901 negated "--no-FOO" variant of the boolean option "--foo". */
902 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
906 setoptval (opt->data, optarg, opt->long_name);
910 /* The user has specified a value -- use it. */
911 setoptval (opt->data, optarg, opt->long_name);
914 /* NEG is true for `--no-FOO' style boolean options. */
915 bool neg = !!(val & BOOLEAN_NEG_MARKER);
916 setoptval (opt->data, neg ? "0" : "1", opt->long_name);
921 void (*func) (void) = (void (*) (void)) opt->data;
925 case OPT__APPEND_OUTPUT:
926 setoptval ("logfile", optarg, opt->long_name);
927 append_to_log = true;
930 run_command (optarg);
934 /* We support real --no-FOO flags now, but keep these
935 short options for convenience and backward
938 for (p = optarg; *p; p++)
942 setoptval ("verbose", "0", opt->long_name);
945 setoptval ("addhostdir", "0", opt->long_name);
948 setoptval ("dirstruct", "0", opt->long_name);
951 setoptval ("noclobber", "1", opt->long_name);
954 setoptval ("noparent", "1", opt->long_name);
957 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
960 printf (_("Try `%s --help' for more options.\n"), exec_name);
968 /* The wgetrc commands are named noparent and noclobber,
969 so we must revert the meaning of the cmdline options
970 before passing the value to setoptval. */
973 flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
974 || (c_tolower (optarg[0]) == 'o'
975 && c_tolower (optarg[1]) == 'n'));
976 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
977 flag ? "0" : "1", opt->long_name);
980 case OPT__DONT_REMOVE_LISTING:
981 setoptval ("removelisting", "0", opt->long_name);
988 nurl = argc - optind;
990 /* All user options have now been processed, so it's now safe to do
991 interoption dependency checks. */
993 if (opt.reclevel == 0)
994 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
996 if (opt.spider || opt.delete_after)
997 opt.no_dirstruct = true;
999 if (opt.page_requisites && !opt.recursive)
1001 /* Don't set opt.recursive here because it would confuse the FTP
1002 code. Instead, call retrieve_tree below when either
1003 page_requisites or recursive is requested. */
1005 if (!opt.no_dirstruct)
1006 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
1009 if (opt.verbose == -1)
1010 opt.verbose = !opt.quiet;
1012 /* Sanity checks. */
1013 if (opt.verbose && opt.quiet)
1015 printf (_("Can't be verbose and quiet at the same time.\n"));
1019 if (opt.timestamping && opt.noclobber)
1022 Can't timestamp and not clobber old files at the same time.\n"));
1027 if (opt.ipv4_only && opt.ipv6_only)
1029 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
1034 if (opt.output_document)
1036 if (opt.convert_links
1037 && (nurl > 1 || opt.page_requisites || opt.recursive))
1040 Cannot specify both -k and -O if multiple URLs are given, or in combination\n\
1041 with -p or -r. See the manual for details.\n\n"), stdout);
1045 if (opt.page_requisites
1048 logprintf (LOG_NOTQUIET, "%s", _("\
1049 WARNING: combining -O with -r or -p will mean that all downloaded content\n\
1050 will be placed in the single file you specified.\n\n"));
1052 if (opt.timestamping)
1054 logprintf (LOG_NOTQUIET, "%s", _("\
1055 WARNING: timestamping does nothing in combination with -O. See the manual\n\
1056 for details.\n\n"));
1057 opt.timestamping = false;
1059 if (opt.noclobber && file_exists_p(opt.output_document))
1061 /* Check if output file exists; if it does, exit. */
1062 logprintf (LOG_VERBOSE, _("File `%s' already there; not retrieving.\n"), opt.output_document);
1067 if (opt.ask_passwd && opt.passwd)
1069 printf (_("Cannot specify both --ask-password and --password.\n"));
1074 if (!nurl && !opt.input_filename)
1076 /* No URL specified. */
1077 printf (_("%s: missing URL\n"), exec_name);
1080 /* #### Something nicer should be printed here -- similar to the
1081 pre-1.5 `--help' page. */
1082 printf (_("Try `%s --help' for more options.\n"), exec_name);
1089 if (opt.locale && !check_encoding_name (opt.locale))
1093 opt.locale = find_locale ();
1095 if (opt.encoding_remote && !check_encoding_name (opt.encoding_remote))
1096 opt.encoding_remote = NULL;
1099 if (opt.enable_iri || opt.locale || opt.encoding_remote)
1101 /* sXXXav : be more specific... */
1102 printf(_("This version does not have support for IRIs\n"));
1109 opt.passwd = prompt_for_password ();
1111 if (opt.passwd == NULL || opt.passwd[0] == '\0')
1121 fork_to_background ();
1124 /* Initialize progress. Have to do this after the options are
1125 processed so we know where the log file is. */
1127 set_progress_implementation (opt.progress_type);
1129 /* Fill in the arguments. */
1130 url = alloca_array (char *, nurl + 1);
1131 for (i = 0; i < nurl; i++, optind++)
1133 char *rewritten = rewrite_shorthand_url (argv[optind]);
1137 url[i] = xstrdup (argv[optind]);
1141 /* Initialize logging. */
1142 log_init (opt.lfilename, append_to_log);
1144 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
1147 /* Open the output filename if necessary. */
1148 if (opt.output_document)
1150 if (HYPHENP (opt.output_document))
1154 result = freopen (NULL, "wb", stdout);
1157 logputs (LOG_NOTQUIET, _("\
1158 WARNING: Can't reopen standard output in binary mode;\n\
1159 downloaded file may contain inappropriate line endings.\n"));
1162 output_stream = stdout;
1167 output_stream = fopen (opt.output_document,
1168 opt.always_rest ? "ab" : "wb");
1169 if (output_stream == NULL)
1171 perror (opt.output_document);
1174 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
1175 output_stream_regular = true;
1184 /* Setup the signal handler to redirect output when hangup is
1186 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
1187 signal(SIGHUP, redirect_output_signal);
1189 /* ...and do the same for SIGUSR1. */
1191 signal (SIGUSR1, redirect_output_signal);
1194 /* Writing to a closed socket normally signals SIGPIPE, and the
1195 process exits. What we want is to ignore SIGPIPE and just check
1196 for the return value of write(). */
1197 signal (SIGPIPE, SIG_IGN);
1200 signal (SIGWINCH, progress_handle_sigwinch);
1203 status = RETROK; /* initialize it, just-in-case */
1204 /* Retrieve the URLs from argument list. */
1205 for (t = url; *t; t++)
1207 char *filename = NULL, *redirected_URL = NULL;
1210 if ((opt.recursive || opt.page_requisites)
1211 && (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (*t)))
1213 int old_follow_ftp = opt.follow_ftp;
1215 /* Turn opt.follow_ftp on in case of recursive FTP retrieval */
1216 if (url_scheme (*t) == SCHEME_FTP)
1219 status = retrieve_tree (*t, NULL);
1221 opt.follow_ftp = old_follow_ftp;
1225 struct iri *i = iri_new ();
1226 set_uri_encoding (i, opt.locale, true);
1227 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt,
1232 if (opt.delete_after && file_exists_p(filename))
1234 DEBUGP (("Removing file due to --delete-after in main():\n"));
1235 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
1236 if (unlink (filename))
1237 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
1240 xfree_null (redirected_URL);
1241 xfree_null (filename);
1244 /* And then from the input file, if any. */
1245 if (opt.input_filename)
1248 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
1250 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
1251 opt.input_filename);
1254 /* Print broken links. */
1255 if (opt.recursive && opt.spider)
1257 print_broken_links();
1260 /* Print the downloaded sum. */
1261 if ((opt.recursive || opt.page_requisites
1263 || (opt.input_filename && total_downloaded_bytes != 0))
1265 total_downloaded_bytes != 0)
1267 logprintf (LOG_NOTQUIET,
1268 _("FINISHED --%s--\nDownloaded: %d files, %s in %s (%s)\n"),
1269 datetime_str (time (NULL)),
1271 human_readable (total_downloaded_bytes),
1272 secs_to_human_time (total_download_time),
1273 retr_rate (total_downloaded_bytes, total_download_time));
1274 /* Print quota warning, if exceeded. */
1275 if (opt.quota && total_downloaded_bytes > opt.quota)
1276 logprintf (LOG_NOTQUIET,
1277 _("Download quota of %s EXCEEDED!\n"),
1278 human_readable (opt.quota));
1281 if (opt.cookies_output)
1284 if (opt.convert_links && !opt.delete_after)
1285 convert_all_links ();
1288 for (i = 0; i < nurl; i++)
1292 if (status == RETROK)
1297 #endif /* TESTING */
1299 #if defined(SIGHUP) || defined(SIGUSR1)
1301 /* So the signal_name check doesn't blow when only one is available. */
1309 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
1310 will proceed operation as usual, trying to write into a log file.
1311 If that is impossible, the output will be turned off. */
1314 redirect_output_signal (int sig)
1316 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1317 (sig == SIGUSR1 ? "SIGUSR1" :
1319 log_request_redirect_output (signal_name);
1320 progress_schedule_redirect ();
1321 signal (sig, redirect_output_signal);