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-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
235 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
236 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
237 { "referer", 0, OPT_VALUE, "referer", -1 },
238 { "reject", 'R', OPT_VALUE, "reject", -1 },
239 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
240 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
241 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
242 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
243 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
244 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
245 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
246 { IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
247 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
248 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
249 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
250 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
251 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
252 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
253 { "tries", 't', OPT_VALUE, "tries", -1 },
254 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
255 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
256 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
257 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
258 { "wait", 'w', OPT_VALUE, "wait", -1 },
259 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
265 /* Return a string that contains S with "no-" prepended. The string
266 is NUL-terminated and allocated off static storage at Wget
270 no_prefix (const char *s)
272 static char buffer[1024];
273 static char *p = buffer;
276 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
277 if (p + size >= buffer + sizeof (buffer))
280 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
286 /* The arguments that that main passes to getopt_long. */
287 static struct option long_options[2 * countof (option_data) + 1];
288 static char short_options[128];
290 /* Mapping between short option chars and option_data indices. */
291 static unsigned char optmap[96];
293 /* Marker for `--no-FOO' values in long_options. */
294 #define BOOLEAN_NEG_MARKER 1024
296 /* Initialize the long_options array used by getopt_long from the data
302 char *p = short_options;
304 for (i = 0; i < countof (option_data); i++)
306 struct cmdline_option *opt = &option_data[i];
307 struct option *longopt;
310 /* The option is disabled. */
313 longopt = &long_options[o++];
314 longopt->name = opt->long_name;
318 *p++ = opt->short_name;
319 optmap[opt->short_name - 32] = longopt - long_options;
324 longopt->has_arg = required_argument;
329 /* Specify an optional argument for long options, so that
330 --option=off works the same as --no-option, for
331 compatibility with pre-1.10 Wget. However, don't specify
332 optional arguments short-option booleans because they
333 prevent combining of short options. */
334 longopt->has_arg = optional_argument;
335 /* For Boolean options, add the "--no-FOO" variant, which is
336 identical to "--foo", except it has opposite meaning and
337 it doesn't allow an argument. */
338 longopt = &long_options[o++];
339 longopt->name = no_prefix (opt->long_name);
340 longopt->has_arg = no_argument;
341 /* Mask the value so we'll be able to recognize that we're
342 dealing with the false value. */
343 longopt->val = i | BOOLEAN_NEG_MARKER;
346 assert (opt->argtype != -1);
347 longopt->has_arg = opt->argtype;
350 if (longopt->has_arg == required_argument)
352 /* Don't handle optional_argument */
356 /* Terminate short_options. */
358 /* No need for xzero(long_options[o]) because its storage is static
359 and it will be zeroed by default. */
360 assert (o <= countof (long_options));
363 /* Print the usage message. */
367 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
370 /* Print the help message, describing all the available options. If
371 you add an option, be sure to update this list. */
375 /* We split the help text this way to ease translation of individual
377 static const char *help[] = {
380 Mandatory arguments to long options are mandatory for short options too.\n\n"),
384 -V, --version display the version of Wget and exit.\n"),
386 -h, --help print this help.\n"),
388 -b, --background go to background after startup.\n"),
390 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
394 Logging and input file:\n"),
396 -o, --output-file=FILE log messages to FILE.\n"),
398 -a, --append-output=FILE append messages to FILE.\n"),
401 -d, --debug print lots of debugging information.\n"),
404 -q, --quiet quiet (no output).\n"),
406 -v, --verbose be verbose (this is the default).\n"),
408 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
410 -i, --input-file=FILE download URLs found in FILE.\n"),
412 -F, --force-html treat input file as HTML.\n"),
414 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
420 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
422 --retry-connrefused retry even if connection is refused.\n"),
424 -O, --output-document=FILE write documents to FILE.\n"),
426 -nc, --no-clobber skip downloads that would download to\n\
429 -c, --continue resume getting a partially-downloaded file.\n"),
431 --progress=TYPE select progress gauge type.\n"),
433 -N, --timestamping don't re-retrieve files unless newer than\n\
436 -S, --server-response print server response.\n"),
438 --spider don't download anything.\n"),
440 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
442 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
444 --connect-timeout=SECS set the connect timeout to SECS.\n"),
446 --read-timeout=SECS set the read timeout to SECS.\n"),
448 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
450 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
452 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
454 -Y, --proxy explicitly turn on proxy.\n"),
456 --no-proxy explicitly turn off proxy.\n"),
458 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
460 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
462 --limit-rate=RATE limit download rate to RATE.\n"),
464 --no-dns-cache disable caching DNS lookups.\n"),
466 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
469 -4, --inet4-only connect only to IPv4 addresses.\n"),
471 -6, --inet6-only connect only to IPv6 addresses.\n"),
473 --prefer-family=FAMILY connect first to addresses of specified family,\n\
474 one of IPv6, IPv4, or none.\n"),
481 -nd, --no-directories don't create directories.\n"),
483 -x, --force-directories force creation of directories.\n"),
485 -nH, --no-host-directories don't create host directories.\n"),
487 --protocol-directories use protocol name in directories.\n"),
489 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
491 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
497 --http-user=USER set http user to USER.\n"),
499 --http-passwd=PASS set http password to PASS.\n"),
501 --no-cache disallow server-cached data.\n"),
503 -E, --html-extension save HTML documents with `.html' extension.\n"),
505 --ignore-length ignore `Content-Length' header field.\n"),
507 --header=STRING insert STRING among the headers.\n"),
509 --proxy-user=USER set USER as proxy username.\n"),
511 --proxy-passwd=PASS set PASS as proxy password.\n"),
513 --referer=URL include `Referer: URL' header in HTTP request.\n"),
515 --save-headers save the HTTP headers to file.\n"),
517 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
519 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
521 --no-cookies don't use cookies.\n"),
523 --load-cookies=FILE load cookies from FILE before session.\n"),
525 --save-cookies=FILE save cookies to FILE after session.\n"),
527 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
529 --post-data=STRING use the POST method; send STRING as the data.\n"),
531 --post-file=FILE use the POST method; send contents of FILE.\n"),
536 HTTPS (SSL/TLS) options:\n"),
538 --secure-protocol=PR choose SSL protocol, one of auto, SSLv2, SSLv3,\n\
541 --no-check-certificate don't validate the server's certificate.\n"),
543 --certificate=FILE client certificate file.\n"),
545 --certificate-type=TYPE client certificate type, PEM or ASN1.\n"),
547 --private-key=FILE private key file.\n"),
549 --private-key-type=TYPE private key type, PEM or ASN1.\n"),
551 --ca-certificate=FILE file with the bundle of CA's.\n"),
553 --ca-directory=DIR directory where hash list of CA's is stored.\n"),
555 --egd-file=FILE file name of the EGD socket.\n"),
557 #endif /* HAVE_SSL */
562 --no-remove-listing don't remove `.listing' files.\n"),
564 --no-glob turn off FTP file name globbing.\n"),
566 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
568 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
570 --preserve-permissions preserve remote file permissions.\n"),
574 Recursive download:\n"),
576 -r, --recursive specify recursive download.\n"),
578 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
580 --delete-after delete files locally after downloading them.\n"),
582 -k, --convert-links make links in downloaded HTML point to local files.\n"),
584 -K, --backup-converted before converting file X, back up as X.orig.\n"),
586 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n"),
588 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
590 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
594 Recursive accept/reject:\n"),
596 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
598 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
600 -D, --domains=LIST comma-separated list of accepted domains.\n"),
602 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
604 --follow-ftp follow FTP links from HTML documents.\n"),
606 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
608 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
610 -H, --span-hosts go to foreign hosts when recursive.\n"),
612 -L, --relative follow relative links only.\n"),
614 -I, --include-directories=LIST list of allowed directories.\n"),
616 -X, --exclude-directories=LIST list of excluded directories.\n"),
618 -np, --no-parent don't ascend to the parent directory.\n"),
621 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
626 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
630 for (i = 0; i < countof (help); i++)
631 fputs (_(help[i]), stdout);
639 printf ("GNU Wget %s\n\n", version_string);
641 Copyright (C) 2005 Free Software Foundation, Inc.\n"), stdout);
643 This program is distributed in the hope that it will be useful,\n\
644 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
645 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
646 GNU General Public License for more details.\n"), stdout);
647 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
653 main (int argc, char *const *argv)
656 int i, ret, longindex;
658 int append_to_log = 0;
662 /* Construct the name of the executable, without the directory part. */
663 exec_name = strrchr (argv[0], PATH_SEPARATOR);
670 /* Drop extension (typically .EXE) from executable filename. */
671 windows_main (&argc, (char **) argv, (char **) &exec_name);
674 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
679 while ((ret = getopt_long (argc, argv,
680 short_options, long_options, &longindex)) != -1)
683 struct cmdline_option *opt;
685 /* If LONGINDEX is unchanged, it means RET is referring a short
693 printf (_("Try `%s --help' for more options.\n"), exec_name);
696 /* Find the short option character in the mapping. */
697 longindex = optmap[ret - 32];
699 val = long_options[longindex].val;
701 /* Use the retrieved value to locate the option in the
702 option_data array, and to see if we're dealing with the
703 negated "--no-FOO" variant of the boolean option "--foo". */
704 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
708 setoptval (opt->data, optarg);
712 /* The user has specified a value -- use it. */
713 setoptval (opt->data, optarg);
716 /* NEG is true for `--no-FOO' style boolean options. */
717 int neg = val & BOOLEAN_NEG_MARKER;
718 setoptval (opt->data, neg ? "0" : "1");
723 void (*func) PARAMS ((void)) = (void (*) PARAMS ((void))) opt->data;
727 case OPT__APPEND_OUTPUT:
728 setoptval ("logfile", optarg);
732 run_command (optarg);
736 /* We support real --no-FOO flags now, but keep these
737 short options for convenience and backward
740 for (p = optarg; *p; p++)
744 setoptval ("verbose", "0");
747 setoptval ("addhostdir", "0");
750 setoptval ("dirstruct", "0");
753 setoptval ("noclobber", "1");
756 setoptval ("noparent", "1");
759 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
762 printf (_("Try `%s --help' for more options.\n"), exec_name);
770 /* The wgetrc commands are named noparent and noclobber,
771 so we must revert the meaning of the cmdline options
772 before passing the value to setoptval. */
775 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
776 || (TOLOWER (optarg[0]) == 'o'
777 && TOLOWER (optarg[1]) == 'n'));
778 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
782 case OPT__DONT_REMOVE_LISTING:
783 setoptval ("removelisting", "0");
790 /* All user options have now been processed, so it's now safe to do
791 interoption dependency checks. */
793 if (opt.reclevel == 0)
794 opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary on this */
796 if (opt.page_requisites && !opt.recursive)
798 /* Don't set opt.recursive here because it would confuse the FTP
799 code. Instead, call retrieve_tree below when either
800 page_requisites or recursive is requested. */
802 if (!opt.no_dirstruct)
803 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
806 if (opt.verbose == -1)
807 opt.verbose = !opt.quiet;
810 if (opt.verbose && opt.quiet)
812 printf (_("Can't be verbose and quiet at the same time.\n"));
816 if (opt.timestamping && opt.noclobber)
819 Can't timestamp and not clobber old files at the same time.\n"));
824 if (opt.ipv4_only && opt.ipv6_only)
826 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
832 nurl = argc - optind;
833 if (!nurl && !opt.input_filename)
835 /* No URL specified. */
836 printf (_("%s: missing URL\n"), exec_name);
839 /* #### Something nicer should be printed here -- similar to the
840 pre-1.5 `--help' page. */
841 printf (_("Try `%s --help' for more options.\n"), exec_name);
846 fork_to_background ();
848 /* Initialize progress. Have to do this after the options are
849 processed so we know where the log file is. */
851 set_progress_implementation (opt.progress_type);
853 /* Fill in the arguments. */
854 url = alloca_array (char *, nurl + 1);
855 for (i = 0; i < nurl; i++, optind++)
857 char *rewritten = rewrite_shorthand_url (argv[optind]);
861 url[i] = xstrdup (argv[optind]);
865 /* Initialize logging. */
866 log_init (opt.lfilename, append_to_log);
868 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
871 /* Open the output filename if necessary. */
872 if (opt.output_document)
874 extern FILE *output_stream;
875 extern int output_stream_regular;
877 if (HYPHENP (opt.output_document))
878 output_stream = stdout;
882 output_stream = fopen (opt.output_document,
883 opt.always_rest ? "ab" : "wb");
884 if (output_stream == NULL)
886 perror (opt.output_document);
889 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
890 output_stream_regular = 1;
898 /* Setup the signal handler to redirect output when hangup is
901 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
902 signal(SIGHUP, redirect_output_signal);
903 /* ...and do the same for SIGUSR1. */
904 signal (SIGUSR1, redirect_output_signal);
905 /* Writing to a closed socket normally signals SIGPIPE, and the
906 process exits. What we want is to ignore SIGPIPE and just check
907 for the return value of write(). */
908 signal (SIGPIPE, SIG_IGN);
910 signal (SIGWINCH, progress_handle_sigwinch);
912 #endif /* HAVE_SIGNAL */
914 status = RETROK; /* initialize it, just-in-case */
915 /* Retrieve the URLs from argument list. */
916 for (t = url; *t; t++)
918 char *filename = NULL, *redirected_URL = NULL;
921 if ((opt.recursive || opt.page_requisites)
922 && url_scheme (*t) != SCHEME_FTP)
923 status = retrieve_tree (*t);
925 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
927 if (opt.delete_after && file_exists_p(filename))
929 DEBUGP (("Removing file due to --delete-after in main():\n"));
930 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
931 if (unlink (filename))
932 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
935 xfree_null (redirected_URL);
936 xfree_null (filename);
939 /* And then from the input file, if any. */
940 if (opt.input_filename)
943 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
945 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
948 /* Print the downloaded sum. */
949 if (opt.recursive || opt.page_requisites
951 || (opt.input_filename && total_downloaded_bytes != 0))
953 logprintf (LOG_NOTQUIET,
954 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
955 time_str (NULL), with_thousand_seps_large (total_downloaded_bytes),
957 /* Print quota warning, if exceeded. */
958 if (opt.quota && total_downloaded_bytes > opt.quota)
959 logprintf (LOG_NOTQUIET,
960 _("Download quota (%s bytes) EXCEEDED!\n"),
961 with_thousand_seps_large (opt.quota));
964 if (opt.cookies_output)
967 if (opt.convert_links && !opt.delete_after)
968 convert_all_links ();
971 for (i = 0; i < nurl; i++)
976 print_malloc_debug_stats ();
978 if (status == RETROK)
985 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
986 will proceed operation as usual, trying to write into a log file.
987 If that is impossible, the output will be turned off.
989 #### It is unsafe to do call libc functions from a signal handler.
990 What we should do is, set a global variable, and have the code in
994 redirect_output_signal (int sig)
996 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
997 (sig == SIGUSR1 ? "SIGUSR1" :
999 log_request_redirect_output (signal_name);
1000 progress_schedule_redirect ();
1001 signal (sig, redirect_output_signal);
1003 #endif /* HAVE_SIGNAL */