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 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
161 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
162 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
163 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
164 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
165 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
166 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
167 { IF_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
168 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
169 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
170 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
171 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
172 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
173 { "domains", 'D', OPT_VALUE, "domains", -1 },
174 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
175 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
176 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
177 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
178 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
179 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
180 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
181 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
182 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
183 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
184 { "ftp-passwd", 0, OPT_VALUE, "ftppasswd", -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, "httppasswd", -1 },
193 { "http-user", 0, OPT_VALUE, "httpuser", -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 { "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
203 { "level", 'l', OPT_VALUE, "reclevel", -1 },
204 { "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
205 { "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
206 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
207 { "no", 'n', OPT__NO, NULL, required_argument },
208 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
209 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
210 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
211 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
212 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
213 { "parent", 0, OPT__PARENT, NULL, optional_argument },
214 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
215 { "post-data", 0, OPT_VALUE, "postdata", -1 },
216 { "post-file", 0, OPT_VALUE, "postfile", -1 },
217 { "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
218 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
219 { "progress", 0, OPT_VALUE, "progress", -1 },
220 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
221 { "proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
222 { "proxy-passwd", 0, OPT_VALUE, "proxypasswd", -1 },
223 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
224 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
225 { "quota", 'Q', OPT_VALUE, "quota", -1 },
226 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
227 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
228 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
229 { "referer", 0, OPT_VALUE, "referer", -1 },
230 { "reject", 'R', OPT_VALUE, "reject", -1 },
231 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
232 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
233 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
234 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
235 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
236 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
237 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
238 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
239 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
240 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
241 { IF_SSL ("sslcadir"), 0, OPT_VALUE, "sslcadir", -1 },
242 { IF_SSL ("sslcafile"), 0, OPT_VALUE, "sslcafile", -1 },
243 { IF_SSL ("sslcertfile"), 0, OPT_VALUE, "sslcertfile", -1 },
244 { IF_SSL ("sslcertkey"), 0, OPT_VALUE, "sslcertkey", -1 },
245 { IF_SSL ("sslcerttype"), 0, OPT_VALUE, "sslcerttype", -1 },
246 { IF_SSL ("sslcheckcert"), 0, OPT_VALUE, "sslcheckcert", -1 },
247 { IF_SSL ("sslprotocol"), 0, OPT_VALUE, "sslprotocol", -1 },
248 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
249 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
250 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
251 { "tries", 't', OPT_VALUE, "tries", -1 },
252 { "use-proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
253 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
254 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
255 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
256 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
257 { "wait", 'w', OPT_VALUE, "wait", -1 },
258 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
264 /* Return a string that contains S with "no-" prepended. The string
265 is NUL-terminated and allocated off static storage at Wget
269 no_prefix (const char *s)
271 static char buffer[1024];
272 static char *p = buffer;
275 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
276 if (p + size >= buffer + sizeof (buffer))
279 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
285 /* The arguments that that main passes to getopt_long. */
286 static struct option long_options[2 * countof (option_data) + 1];
287 static char short_options[128];
289 /* Mapping between short option chars and option_data indices. */
290 static unsigned char optmap[96];
292 /* Marker for `--no-FOO' values in long_options. */
293 #define BOOLEAN_NEG_MARKER 1024
295 /* Initialize the long_options array used by getopt_long from the data
301 char *p = short_options;
303 for (i = 0; i < countof (option_data); i++)
305 struct cmdline_option *opt = &option_data[i];
306 struct option *longopt;
309 /* The option is disabled. */
312 longopt = &long_options[o++];
313 longopt->name = opt->long_name;
317 *p++ = opt->short_name;
318 optmap[opt->short_name - 32] = longopt - long_options;
323 longopt->has_arg = required_argument;
328 /* Don't specify optional arguments for boolean short
329 options. They are evil because they prevent combining of
331 longopt->has_arg = optional_argument;
332 /* For Boolean options, add the "--no-FOO" variant, which is
333 identical to "--foo", except it has opposite meaning and
334 it doesn't allow an argument. */
335 longopt = &long_options[o++];
336 longopt->name = no_prefix (opt->long_name);
337 longopt->has_arg = no_argument;
338 /* Mask the value so we'll be able to recognize that we're
339 dealing with the false value. */
340 longopt->val = i | BOOLEAN_NEG_MARKER;
343 assert (opt->argtype != -1);
344 longopt->has_arg = opt->argtype;
347 if (longopt->has_arg == required_argument)
349 /* Don't handle optional_argument */
353 /* Terminate short_options. */
355 /* No need for xzero(long_options[o]) because its storage is static
356 and it will be zeroed by default. */
357 assert (o <= countof (long_options));
360 /* Print the usage message. */
364 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
367 /* Print the help message, describing all the available options. If
368 you add an option, be sure to update this list. */
372 /* We split the help text this way to ease translation of individual
374 static const char *help[] = {
377 Mandatory arguments to long options are mandatory for short options too.\n\n"),
381 -V, --version display the version of Wget and exit.\n"),
383 -h, --help print this help.\n"),
385 -b, --background go to background after startup.\n"),
387 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
391 Logging and input file:\n"),
393 -o, --output-file=FILE log messages to FILE.\n"),
395 -a, --append-output=FILE append messages to FILE.\n"),
398 -d, --debug print lots of debugging information.\n"),
401 -q, --quiet quiet (no output).\n"),
403 -v, --verbose be verbose (this is the default).\n"),
405 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
407 -i, --input-file=FILE download URLs found in FILE.\n"),
409 -F, --force-html treat input file as HTML.\n"),
411 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
417 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
419 --retry-connrefused retry even if connection is refused.\n"),
421 -O, --output-document=FILE write documents to FILE.\n"),
423 -nc, --no-clobber skip downloads that would download to\n\
426 -c, --continue resume getting a partially-downloaded file.\n"),
428 --progress=TYPE select progress gauge type.\n"),
430 -N, --timestamping don't re-retrieve files unless newer than\n\
433 -S, --server-response print server response.\n"),
435 --spider don't download anything.\n"),
437 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
439 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
441 --connect-timeout=SECS set the connect timeout to SECS.\n"),
443 --read-timeout=SECS set the read timeout to SECS.\n"),
445 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
447 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
449 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
451 -Y, --proxy explicitly turn on proxy.\n"),
453 --no-proxy explicitly turn off proxy.\n"),
455 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
457 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
459 --limit-rate=RATE limit download rate to RATE.\n"),
461 --no-dns-cache disable caching DNS lookups.\n"),
463 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
466 -4, --inet4-only connect only to IPv4 addresses.\n"),
468 -6, --inet6-only connect only to IPv6 addresses.\n"),
470 --prefer-family=FAMILY connect first to addresses of specified family,\n\
471 one of IPv6, IPv4, or none.\n"),
478 -nd, --no-directories don't create directories.\n"),
480 -x, --force-directories force creation of directories.\n"),
482 -nH, --no-host-directories don't create host directories.\n"),
484 --protocol-directories use protocol name in directories.\n"),
486 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
488 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
494 --http-user=USER set http user to USER.\n"),
496 --http-passwd=PASS set http password to PASS.\n"),
498 --no-cache disallow server-cached data.\n"),
500 -E, --html-extension save HTML documents with `.html' extension.\n"),
502 --ignore-length ignore `Content-Length' header field.\n"),
504 --header=STRING insert STRING among the headers.\n"),
506 --proxy-user=USER set USER as proxy username.\n"),
508 --proxy-passwd=PASS set PASS as proxy password.\n"),
510 --referer=URL include `Referer: URL' header in HTTP request.\n"),
512 --save-headers save the HTTP headers to file.\n"),
514 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
516 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
518 --no-cookies don't use cookies.\n"),
520 --load-cookies=FILE load cookies from FILE before session.\n"),
522 --save-cookies=FILE save cookies to FILE after session.\n"),
524 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
526 --post-data=STRING use the POST method; send STRING as the data.\n"),
528 --post-file=FILE use the POST method; send contents of FILE.\n"),
533 HTTPS (SSL) options:\n"),
535 --sslcertfile=FILE optional client certificate.\n"),
537 --sslcertkey=KEYFILE optional keyfile for this certificate.\n"),
539 --sslcadir=DIR dir where hash list of CA's are stored.\n"),
541 --sslcafile=FILE file with bundle of CA's.\n"),
543 --sslcerttype=0/1 Client-Cert type 0=PEM (default) / 1=ASN1 (DER).\n"),
545 --sslcheckcert=0/1 Check the server cert against given CA.\n"),
547 --sslprotocol=0-3 choose SSL protocol; 0=automatic,\n\
548 1=SSLv2 2=SSLv3 3=TLSv1.\n"),
550 --egd-file=FILE file name of the EGD socket.\n"),
552 #endif /* HAVE_SSL */
557 --no-remove-listing don't remove `.listing' files.\n"),
559 --no-glob turn off FTP file name globbing.\n"),
561 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
563 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
565 --preserve-permissions preserve remote file permissions.\n"),
569 Recursive download:\n"),
571 -r, --recursive specify recursive download.\n"),
573 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
575 --delete-after delete files locally after downloading them.\n"),
577 -k, --convert-links make links in downloaded HTML point to local files.\n"),
579 -K, --backup-converted before converting file X, back up as X.orig.\n"),
581 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n"),
583 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
585 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
589 Recursive accept/reject:\n"),
591 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
593 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
595 -D, --domains=LIST comma-separated list of accepted domains.\n"),
597 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
599 --follow-ftp follow FTP links from HTML documents.\n"),
601 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
603 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
605 -H, --span-hosts go to foreign hosts when recursive.\n"),
607 -L, --relative follow relative links only.\n"),
609 -I, --include-directories=LIST list of allowed directories.\n"),
611 -X, --exclude-directories=LIST list of excluded directories.\n"),
613 -np, --no-parent don't ascend to the parent directory.\n"),
616 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
621 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
625 for (i = 0; i < countof (help); i++)
626 fputs (_(help[i]), stdout);
634 printf ("GNU Wget %s\n\n", version_string);
636 Copyright (C) 2005 Free Software Foundation, Inc.\n"), stdout);
638 This program is distributed in the hope that it will be useful,\n\
639 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
640 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
641 GNU General Public License for more details.\n"), stdout);
642 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
648 main (int argc, char *const *argv)
651 int i, ret, longindex;
653 int append_to_log = 0;
657 /* Construct the name of the executable, without the directory part. */
658 exec_name = strrchr (argv[0], PATH_SEPARATOR);
665 /* Drop extension (typically .EXE) from executable filename. */
666 windows_main (&argc, (char **) argv, (char **) &exec_name);
669 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
674 while ((ret = getopt_long (argc, argv,
675 short_options, long_options, &longindex)) != -1)
678 struct cmdline_option *opt;
680 /* If LONGINDEX is unchanged, it means RET is referring a short
688 printf (_("Try `%s --help' for more options.\n"), exec_name);
691 /* Find the short option character in the mapping. */
692 longindex = optmap[ret - 32];
694 val = long_options[longindex].val;
696 /* Use the retrieved value to locate the option in the
697 option_data array, and to see if we're dealing with the
698 negated "--no-FOO" variant of the boolean option "--foo". */
699 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
703 setoptval (opt->data, optarg);
707 /* The user has specified a value -- use it. */
708 setoptval (opt->data, optarg);
711 /* NEG is true for `--no-FOO' style boolean options. */
712 int neg = val & BOOLEAN_NEG_MARKER;
713 setoptval (opt->data, neg ? "0" : "1");
718 void (*func) PARAMS ((void)) = (void (*) PARAMS ((void))) opt->data;
722 case OPT__APPEND_OUTPUT:
723 setoptval ("logfile", optarg);
727 run_command (optarg);
731 /* We support real --no-FOO flags now, but keep these
732 short options for convenience and backward
735 for (p = optarg; *p; p++)
739 setoptval ("verbose", "0");
742 setoptval ("addhostdir", "0");
745 setoptval ("dirstruct", "0");
748 setoptval ("noclobber", "1");
751 setoptval ("noparent", "1");
754 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
757 printf (_("Try `%s --help' for more options.\n"), exec_name);
765 /* The wgetrc commands are named noparent and noclobber,
766 so we must revert the meaning of the cmdline options
767 before passing the value to setoptval. */
770 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
771 || (TOLOWER (optarg[0]) == 'o'
772 && TOLOWER (optarg[1]) == 'n'));
773 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
777 case OPT__DONT_REMOVE_LISTING:
778 setoptval ("removelisting", "0");
785 /* All user options have now been processed, so it's now safe to do
786 interoption dependency checks. */
788 if (opt.reclevel == 0)
789 opt.reclevel = INFINITE_RECURSION; /* see wget.h for commentary on this */
791 if (opt.page_requisites && !opt.recursive)
793 /* Don't set opt.recursive here because it would confuse the FTP
794 code. Instead, call retrieve_tree below when either
795 page_requisites or recursive is requested. */
797 if (!opt.no_dirstruct)
798 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
801 if (opt.verbose == -1)
802 opt.verbose = !opt.quiet;
805 if (opt.verbose && opt.quiet)
807 printf (_("Can't be verbose and quiet at the same time.\n"));
811 if (opt.timestamping && opt.noclobber)
814 Can't timestamp and not clobber old files at the same time.\n"));
819 if (opt.ipv4_only && opt.ipv6_only)
821 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
827 nurl = argc - optind;
828 if (!nurl && !opt.input_filename)
830 /* No URL specified. */
831 printf (_("%s: missing URL\n"), exec_name);
834 /* #### Something nicer should be printed here -- similar to the
835 pre-1.5 `--help' page. */
836 printf (_("Try `%s --help' for more options.\n"), exec_name);
841 fork_to_background ();
843 /* Initialize progress. Have to do this after the options are
844 processed so we know where the log file is. */
846 set_progress_implementation (opt.progress_type);
848 /* Fill in the arguments. */
849 url = alloca_array (char *, nurl + 1);
850 for (i = 0; i < nurl; i++, optind++)
852 char *rewritten = rewrite_shorthand_url (argv[optind]);
856 url[i] = xstrdup (argv[optind]);
860 /* Initialize logging. */
861 log_init (opt.lfilename, append_to_log);
863 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
866 /* Open the output filename if necessary. */
867 if (opt.output_document)
869 extern FILE *output_stream;
870 extern int output_stream_regular;
872 if (HYPHENP (opt.output_document))
873 output_stream = stdout;
877 output_stream = fopen (opt.output_document,
878 opt.always_rest ? "ab" : "wb");
879 if (output_stream == NULL)
881 perror (opt.output_document);
884 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
885 output_stream_regular = 1;
893 /* Setup the signal handler to redirect output when hangup is
896 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
897 signal(SIGHUP, redirect_output_signal);
898 /* ...and do the same for SIGUSR1. */
899 signal (SIGUSR1, redirect_output_signal);
900 /* Writing to a closed socket normally signals SIGPIPE, and the
901 process exits. What we want is to ignore SIGPIPE and just check
902 for the return value of write(). */
903 signal (SIGPIPE, SIG_IGN);
905 signal (SIGWINCH, progress_handle_sigwinch);
907 #endif /* HAVE_SIGNAL */
909 status = RETROK; /* initialize it, just-in-case */
910 /* Retrieve the URLs from argument list. */
911 for (t = url; *t; t++)
913 char *filename = NULL, *redirected_URL = NULL;
916 if ((opt.recursive || opt.page_requisites)
917 && url_scheme (*t) != SCHEME_FTP)
918 status = retrieve_tree (*t);
920 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
922 if (opt.delete_after && file_exists_p(filename))
924 DEBUGP (("Removing file due to --delete-after in main():\n"));
925 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
926 if (unlink (filename))
927 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
930 xfree_null (redirected_URL);
931 xfree_null (filename);
934 /* And then from the input file, if any. */
935 if (opt.input_filename)
938 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
940 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
943 /* Print the downloaded sum. */
944 if (opt.recursive || opt.page_requisites
946 || (opt.input_filename && total_downloaded_bytes != 0))
948 logprintf (LOG_NOTQUIET,
949 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
950 time_str (NULL), with_thousand_seps_large (total_downloaded_bytes),
952 /* Print quota warning, if exceeded. */
953 if (opt.quota && total_downloaded_bytes > opt.quota)
954 logprintf (LOG_NOTQUIET,
955 _("Download quota (%s bytes) EXCEEDED!\n"),
956 with_thousand_seps_large (opt.quota));
959 if (opt.cookies_output)
962 if (opt.convert_links && !opt.delete_after)
963 convert_all_links ();
966 for (i = 0; i < nurl; i++)
971 print_malloc_debug_stats ();
973 if (status == RETROK)
980 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
981 will proceed operation as usual, trying to write into a log file.
982 If that is impossible, the output will be turned off.
984 #### It is unsafe to do call libc functions from a signal handler.
985 What we should do is, set a global variable, and have the code in
989 redirect_output_signal (int sig)
991 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
992 (sig == SIGUSR1 ? "SIGUSR1" :
994 log_request_redirect_output (signal_name);
995 progress_schedule_redirect ();
996 signal (sig, redirect_output_signal);
998 #endif /* HAVE_SIGNAL */