1 /* Command line parsing.
2 Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
4 This file is part of GNU Wget.
6 GNU Wget is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 GNU Wget is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Wget; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 In addition, as a special exception, the Free Software Foundation
21 gives permission to link the code of its release of Wget with the
22 OpenSSL project's "OpenSSL" library (or with modified versions of it
23 that use the same license as the "OpenSSL" library), and distribute
24 the linked executables. You must obey the GNU General Public License
25 in all respects for all of the code used other than "OpenSSL". If you
26 modify this file, you may extend this exception to your version of the
27 file, but you are not obligated to do so. If you do not wish to do
28 so, delete this exception statement from your version. */
36 #endif /* HAVE_UNISTD_H */
37 #include <sys/types.h>
42 #endif /* HAVE_STRING_H */
49 #endif /* HAVE_LOCALE_H */
65 #include "progress.h" /* for progress_handle_sigwinch */
68 /* On GNU system this will include system-wide getopt.h. */
71 #ifndef PATH_SEPARATOR
72 # define PATH_SEPARATOR '/'
77 extern LARGE_INT total_downloaded_bytes;
78 extern char *version_string;
80 extern struct cookie_jar *wget_cookie_jar;
82 static RETSIGTYPE redirect_output_signal PARAMS ((int));
84 const char *exec_name;
86 /* Initialize I18N. The initialization amounts to invoking
87 setlocale(), bindtextdomain() and textdomain().
88 Does nothing if NLS is disabled or missing. */
90 i18n_initialize (void)
92 /* If HAVE_NLS is defined, assume the existence of the three
93 functions invoked here. */
95 /* Set the current locale. */
96 /* Here we use LC_MESSAGES instead of LC_ALL, for two reasons.
97 First, message catalogs are all of I18N Wget uses anyway.
98 Second, setting LC_ALL has a dangerous potential of messing
99 things up. For example, when in a foreign locale, Solaris
100 strptime() fails to handle international dates correctly, which
101 makes http_atotm() malfunction. */
103 setlocale (LC_MESSAGES, "");
104 setlocale (LC_CTYPE, "");
106 setlocale (LC_ALL, "");
108 /* Set the text message domain. */
109 bindtextdomain ("wget", LOCALEDIR);
111 #endif /* HAVE_NLS */
114 /* Definition of command-line options. */
116 static void print_help PARAMS ((void));
117 static void print_version PARAMS ((void));
122 # define IF_SSL(x) NULL
126 # define IF_DEBUG(x) x
128 # define IF_DEBUG(x) NULL
131 struct cmdline_option {
132 const char *long_name;
138 /* Non-standard options that have to be handled specially in
142 OPT__DONT_REMOVE_LISTING,
147 const void *data; /* for standard options */
148 int argtype; /* for non-standard options */
151 struct cmdline_option option_data[] =
153 { "accept", 'A', OPT_VALUE, "accept", -1 },
154 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
155 { "background", 'b', OPT_BOOLEAN, "background", -1 },
156 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
157 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
158 { "base", 'B', OPT_VALUE, "base", -1 },
159 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
160 { IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
161 { IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
162 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
163 { IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
164 { IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
165 { IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
166 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
167 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
168 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
169 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
170 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
171 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
172 { IF_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
173 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
174 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
175 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
176 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
177 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
178 { "domains", 'D', OPT_VALUE, "domains", -1 },
179 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
180 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
181 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
182 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
183 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
184 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
185 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
186 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
187 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
188 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
189 { "ftp-passwd", 0, OPT_VALUE, "ftppasswd", -1 },
190 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
191 { "header", 0, OPT_VALUE, "header", -1 },
192 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
193 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
194 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
195 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
196 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
197 { "http-passwd", 0, OPT_VALUE, "httppasswd", -1 },
198 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
199 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
200 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
201 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
203 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
204 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
206 { "input-file", 'i', OPT_VALUE, "input", -1 },
207 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
208 { "level", 'l', OPT_VALUE, "reclevel", -1 },
209 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
210 { "load-cookies", 0, OPT_VALUE, "loadcookies", -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 { "post-data", 0, OPT_VALUE, "postdata", -1 },
221 { "post-file", 0, OPT_VALUE, "postfile", -1 },
222 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
223 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
224 { IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
225 { IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
226 { "progress", 0, OPT_VALUE, "progress", -1 },
227 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
228 { "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
229 { "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
230 { "proxy-passwd", 0, OPT_VALUE, "proxypasswd", -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 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
242 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
243 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
244 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
245 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
246 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
247 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
248 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
249 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
250 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
251 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
252 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
253 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
254 { "tries", 't', OPT_VALUE, "tries", -1 },
255 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
256 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
257 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
258 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
259 { "wait", 'w', OPT_VALUE, "wait", -1 },
260 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
266 /* Return a string that contains S with "no-" prepended. The string
267 is NUL-terminated and allocated off static storage at Wget
271 no_prefix (const char *s)
273 static char buffer[1024];
274 static char *p = buffer;
277 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
278 if (p + size >= buffer + sizeof (buffer))
281 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
287 /* The arguments that that main passes to getopt_long. */
288 static struct option long_options[2 * countof (option_data) + 1];
289 static char short_options[128];
291 /* Mapping between short option chars and option_data indices. */
292 static unsigned char optmap[96];
294 /* Marker for `--no-FOO' values in long_options. */
295 #define BOOLEAN_NEG_MARKER 1024
297 /* Initialize the long_options array used by getopt_long from the data
303 char *p = short_options;
305 for (i = 0; i < countof (option_data); i++)
307 struct cmdline_option *opt = &option_data[i];
308 struct option *longopt;
311 /* The option is disabled. */
314 longopt = &long_options[o++];
315 longopt->name = opt->long_name;
319 *p++ = opt->short_name;
320 optmap[opt->short_name - 32] = longopt - long_options;
325 longopt->has_arg = required_argument;
330 /* Specify an optional argument for long options, so that
331 --option=off works the same as --no-option, for
332 compatibility with pre-1.10 Wget. However, don't specify
333 optional arguments short-option booleans because they
334 prevent combining of short options. */
335 longopt->has_arg = optional_argument;
336 /* For Boolean options, add the "--no-FOO" variant, which is
337 identical to "--foo", except it has opposite meaning and
338 it doesn't allow an argument. */
339 longopt = &long_options[o++];
340 longopt->name = no_prefix (opt->long_name);
341 longopt->has_arg = no_argument;
342 /* Mask the value so we'll be able to recognize that we're
343 dealing with the false value. */
344 longopt->val = i | BOOLEAN_NEG_MARKER;
347 assert (opt->argtype != -1);
348 longopt->has_arg = opt->argtype;
351 if (longopt->has_arg == required_argument)
353 /* Don't handle optional_argument */
357 /* Terminate short_options. */
359 /* No need for xzero(long_options[o]) because its storage is static
360 and it will be zeroed by default. */
361 assert (o <= countof (long_options));
364 /* Print the usage message. */
368 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
371 /* Print the help message, describing all the available options. If
372 you add an option, be sure to update this list. */
376 /* We split the help text this way to ease translation of individual
378 static const char *help[] = {
381 Mandatory arguments to long options are mandatory for short options too.\n\n"),
385 -V, --version display the version of Wget and exit.\n"),
387 -h, --help print this help.\n"),
389 -b, --background go to background after startup.\n"),
391 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
395 Logging and input file:\n"),
397 -o, --output-file=FILE log messages to FILE.\n"),
399 -a, --append-output=FILE append messages to FILE.\n"),
402 -d, --debug print lots of debugging information.\n"),
405 -q, --quiet quiet (no output).\n"),
407 -v, --verbose be verbose (this is the default).\n"),
409 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
411 -i, --input-file=FILE download URLs found in FILE.\n"),
413 -F, --force-html treat input file as HTML.\n"),
415 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
421 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
423 --retry-connrefused retry even if connection is refused.\n"),
425 -O, --output-document=FILE write documents to FILE.\n"),
427 -nc, --no-clobber skip downloads that would download to\n\
430 -c, --continue resume getting a partially-downloaded file.\n"),
432 --progress=TYPE select progress gauge type.\n"),
434 -N, --timestamping don't re-retrieve files unless newer than\n\
437 -S, --server-response print server response.\n"),
439 --spider don't download anything.\n"),
441 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
443 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
445 --connect-timeout=SECS set the connect timeout to SECS.\n"),
447 --read-timeout=SECS set the read timeout to SECS.\n"),
449 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
451 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
453 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
455 -Y, --proxy explicitly turn on proxy.\n"),
457 --no-proxy explicitly turn off proxy.\n"),
459 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
461 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
463 --limit-rate=RATE limit download rate to RATE.\n"),
465 --no-dns-cache disable caching DNS lookups.\n"),
467 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
470 -4, --inet4-only connect only to IPv4 addresses.\n"),
472 -6, --inet6-only connect only to IPv6 addresses.\n"),
474 --prefer-family=FAMILY connect first to addresses of specified family,\n\
475 one of IPv6, IPv4, or none.\n"),
482 -nd, --no-directories don't create directories.\n"),
484 -x, --force-directories force creation of directories.\n"),
486 -nH, --no-host-directories don't create host directories.\n"),
488 --protocol-directories use protocol name in directories.\n"),
490 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
492 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
498 --http-user=USER set http user to USER.\n"),
500 --http-passwd=PASS set http password to PASS.\n"),
502 --no-cache disallow server-cached data.\n"),
504 -E, --html-extension save HTML documents with `.html' extension.\n"),
506 --ignore-length ignore `Content-Length' header field.\n"),
508 --header=STRING insert STRING among the headers.\n"),
510 --proxy-user=USER set USER as proxy username.\n"),
512 --proxy-passwd=PASS set PASS as proxy password.\n"),
514 --referer=URL include `Referer: URL' header in HTTP request.\n"),
516 --save-headers save the HTTP headers to file.\n"),
518 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
520 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
522 --no-cookies don't use cookies.\n"),
524 --load-cookies=FILE load cookies from FILE before session.\n"),
526 --save-cookies=FILE save cookies to FILE after session.\n"),
528 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
530 --post-data=STRING use the POST method; send STRING as the data.\n"),
532 --post-file=FILE use the POST method; send contents of FILE.\n"),
537 HTTPS (SSL/TLS) options:\n"),
539 --secure-protocol=PR choose SSL protocol, one of auto, SSLv2, SSLv3,\n\
542 --no-check-certificate don't validate the server's certificate.\n"),
544 --certificate=FILE client certificate file.\n"),
546 --certificate-type=TYPE client certificate type, PEM or ASN1.\n"),
548 --private-key=FILE private key file.\n"),
550 --private-key-type=TYPE private key type, PEM or ASN1.\n"),
552 --ca-certificate=FILE file with the bundle of CA's.\n"),
554 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
556 --random-file=FILE file with random data for seeding the SSL PRNG.\n"),
558 --egd-file=FILE file naming the EGD socket with random data.\n"),
560 #endif /* HAVE_SSL */
565 --no-remove-listing don't remove `.listing' files.\n"),
567 --no-glob turn off FTP file name globbing.\n"),
569 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
571 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
573 --preserve-permissions preserve remote file permissions.\n"),
577 Recursive download:\n"),
579 -r, --recursive specify recursive download.\n"),
581 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
583 --delete-after delete files locally after downloading them.\n"),
585 -k, --convert-links make links in downloaded HTML point to local files.\n"),
587 -K, --backup-converted before converting file X, back up as X.orig.\n"),
589 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n"),
591 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
593 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
597 Recursive accept/reject:\n"),
599 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
601 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
603 -D, --domains=LIST comma-separated list of accepted domains.\n"),
605 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
607 --follow-ftp follow FTP links from HTML documents.\n"),
609 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
611 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
613 -H, --span-hosts go to foreign hosts when recursive.\n"),
615 -L, --relative follow relative links only.\n"),
617 -I, --include-directories=LIST list of allowed directories.\n"),
619 -X, --exclude-directories=LIST list of excluded directories.\n"),
621 -np, --no-parent don't ascend to the parent directory.\n"),
624 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
629 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
633 for (i = 0; i < countof (help); i++)
634 fputs (_(help[i]), stdout);
642 printf ("GNU Wget %s\n\n", version_string);
644 Copyright (C) 2005 Free Software Foundation, Inc.\n"), stdout);
646 This program is distributed in the hope that it will be useful,\n\
647 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
648 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
649 GNU General Public License for more details.\n"), stdout);
650 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
656 main (int argc, char *const *argv)
659 int i, ret, longindex;
661 int append_to_log = 0;
665 /* Construct the name of the executable, without the directory part. */
666 exec_name = strrchr (argv[0], PATH_SEPARATOR);
673 /* Drop extension (typically .EXE) from executable filename. */
674 windows_main (&argc, (char **) argv, (char **) &exec_name);
677 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
682 while ((ret = getopt_long (argc, argv,
683 short_options, long_options, &longindex)) != -1)
686 struct cmdline_option *opt;
688 /* If LONGINDEX is unchanged, it means RET is referring a short
696 printf (_("Try `%s --help' for more options.\n"), exec_name);
699 /* Find the short option character in the mapping. */
700 longindex = optmap[ret - 32];
702 val = long_options[longindex].val;
704 /* Use the retrieved value to locate the option in the
705 option_data array, and to see if we're dealing with the
706 negated "--no-FOO" variant of the boolean option "--foo". */
707 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
711 setoptval (opt->data, optarg);
715 /* The user has specified a value -- use it. */
716 setoptval (opt->data, optarg);
719 /* NEG is true for `--no-FOO' style boolean options. */
720 int neg = val & BOOLEAN_NEG_MARKER;
721 setoptval (opt->data, neg ? "0" : "1");
726 void (*func) PARAMS ((void)) = (void (*) PARAMS ((void))) opt->data;
730 case OPT__APPEND_OUTPUT:
731 setoptval ("logfile", optarg);
735 run_command (optarg);
739 /* We support real --no-FOO flags now, but keep these
740 short options for convenience and backward
743 for (p = optarg; *p; p++)
747 setoptval ("verbose", "0");
750 setoptval ("addhostdir", "0");
753 setoptval ("dirstruct", "0");
756 setoptval ("noclobber", "1");
759 setoptval ("noparent", "1");
762 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
765 printf (_("Try `%s --help' for more options.\n"), exec_name);
773 /* The wgetrc commands are named noparent and noclobber,
774 so we must revert the meaning of the cmdline options
775 before passing the value to setoptval. */
778 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
779 || (TOLOWER (optarg[0]) == 'o'
780 && TOLOWER (optarg[1]) == 'n'));
781 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
785 case OPT__DONT_REMOVE_LISTING:
786 setoptval ("removelisting", "0");
793 /* All user options have now been processed, so it's now safe to do
794 interoption dependency checks. */
796 if (opt.reclevel == 0)
797 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary on this */
799 if (opt.page_requisites && !opt.recursive)
801 /* Don't set opt.recursive here because it would confuse the FTP
802 code. Instead, call retrieve_tree below when either
803 page_requisites or recursive is requested. */
805 if (!opt.no_dirstruct)
806 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
809 if (opt.verbose == -1)
810 opt.verbose = !opt.quiet;
813 if (opt.verbose && opt.quiet)
815 printf (_("Can't be verbose and quiet at the same time.\n"));
819 if (opt.timestamping && opt.noclobber)
822 Can't timestamp and not clobber old files at the same time.\n"));
827 if (opt.ipv4_only && opt.ipv6_only)
829 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
835 nurl = argc - optind;
836 if (!nurl && !opt.input_filename)
838 /* No URL specified. */
839 printf (_("%s: missing URL\n"), exec_name);
842 /* #### Something nicer should be printed here -- similar to the
843 pre-1.5 `--help' page. */
844 printf (_("Try `%s --help' for more options.\n"), exec_name);
849 fork_to_background ();
851 /* Initialize progress. Have to do this after the options are
852 processed so we know where the log file is. */
854 set_progress_implementation (opt.progress_type);
856 /* Fill in the arguments. */
857 url = alloca_array (char *, nurl + 1);
858 for (i = 0; i < nurl; i++, optind++)
860 char *rewritten = rewrite_shorthand_url (argv[optind]);
864 url[i] = xstrdup (argv[optind]);
868 /* Initialize logging. */
869 log_init (opt.lfilename, append_to_log);
871 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
874 /* Open the output filename if necessary. */
875 if (opt.output_document)
877 extern FILE *output_stream;
878 extern int output_stream_regular;
880 if (HYPHENP (opt.output_document))
881 output_stream = stdout;
885 output_stream = fopen (opt.output_document,
886 opt.always_rest ? "ab" : "wb");
887 if (output_stream == NULL)
889 perror (opt.output_document);
892 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
893 output_stream_regular = 1;
901 /* Setup the signal handler to redirect output when hangup is
904 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
905 signal(SIGHUP, redirect_output_signal);
906 /* ...and do the same for SIGUSR1. */
907 signal (SIGUSR1, redirect_output_signal);
908 /* Writing to a closed socket normally signals SIGPIPE, and the
909 process exits. What we want is to ignore SIGPIPE and just check
910 for the return value of write(). */
911 signal (SIGPIPE, SIG_IGN);
913 signal (SIGWINCH, progress_handle_sigwinch);
915 #endif /* HAVE_SIGNAL */
917 status = RETROK; /* initialize it, just-in-case */
918 /* Retrieve the URLs from argument list. */
919 for (t = url; *t; t++)
921 char *filename = NULL, *redirected_URL = NULL;
924 if ((opt.recursive || opt.page_requisites)
925 && url_scheme (*t) != SCHEME_FTP)
926 status = retrieve_tree (*t);
928 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
930 if (opt.delete_after && file_exists_p(filename))
932 DEBUGP (("Removing file due to --delete-after in main():\n"));
933 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
934 if (unlink (filename))
935 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
938 xfree_null (redirected_URL);
939 xfree_null (filename);
942 /* And then from the input file, if any. */
943 if (opt.input_filename)
946 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
948 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
951 /* Print the downloaded sum. */
952 if (opt.recursive || opt.page_requisites
954 || (opt.input_filename && total_downloaded_bytes != 0))
956 logprintf (LOG_NOTQUIET,
957 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
958 time_str (NULL), with_thousand_seps_large (total_downloaded_bytes),
960 /* Print quota warning, if exceeded. */
961 if (opt.quota && total_downloaded_bytes > opt.quota)
962 logprintf (LOG_NOTQUIET,
963 _("Download quota (%s bytes) EXCEEDED!\n"),
964 with_thousand_seps_large (opt.quota));
967 if (opt.cookies_output)
970 if (opt.convert_links && !opt.delete_after)
971 convert_all_links ();
974 for (i = 0; i < nurl; i++)
979 print_malloc_debug_stats ();
981 if (status == RETROK)
988 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
989 will proceed operation as usual, trying to write into a log file.
990 If that is impossible, the output will be turned off.
992 #### It is unsafe to do call libc functions from a signal handler.
993 What we should do is, set a global variable, and have the code in
997 redirect_output_signal (int sig)
999 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
1000 (sig == SIGUSR1 ? "SIGUSR1" :
1002 log_request_redirect_output (signal_name);
1003 progress_schedule_redirect ();
1004 signal (sig, redirect_output_signal);
1006 #endif /* HAVE_SIGNAL */