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 */
66 #include "progress.h" /* for progress_handle_sigwinch */
69 /* On GNU system this will include system-wide getopt.h. */
72 #ifndef PATH_SEPARATOR
73 # define PATH_SEPARATOR '/'
78 extern LARGE_INT total_downloaded_bytes;
79 extern char *version_string;
81 extern struct cookie_jar *wget_cookie_jar;
83 static RETSIGTYPE redirect_output_signal PARAMS ((int));
85 const char *exec_name;
87 /* Initialize I18N. The initialization amounts to invoking
88 setlocale(), bindtextdomain() and textdomain().
89 Does nothing if NLS is disabled or missing. */
91 i18n_initialize (void)
93 /* If HAVE_NLS is defined, assume the existence of the three
94 functions invoked here. */
96 /* Set the current locale. */
97 /* Here we use LC_MESSAGES instead of LC_ALL, for two reasons.
98 First, message catalogs are all of I18N Wget uses anyway.
99 Second, setting LC_ALL has a dangerous potential of messing
100 things up. For example, when in a foreign locale, Solaris
101 strptime() fails to handle international dates correctly, which
102 makes http_atotm() malfunction. */
104 setlocale (LC_MESSAGES, "");
105 setlocale (LC_CTYPE, "");
107 setlocale (LC_ALL, "");
109 /* Set the text message domain. */
110 bindtextdomain ("wget", LOCALEDIR);
112 #endif /* HAVE_NLS */
115 /* Definition of command-line options. */
117 static void print_help PARAMS ((void));
118 static void print_version PARAMS ((void));
123 # define IF_SSL(x) NULL
127 # define IF_DEBUG(x) x
129 # define IF_DEBUG(x) NULL
132 struct cmdline_option {
133 const char *long_name;
139 /* Non-standard options that have to be handled specially in
143 OPT__DONT_REMOVE_LISTING,
148 const void *data; /* for standard options */
149 int argtype; /* for non-standard options */
152 struct cmdline_option option_data[] =
154 { "accept", 'A', OPT_VALUE, "accept", -1 },
155 { "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
156 { "background", 'b', OPT_BOOLEAN, "background", -1 },
157 { "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
158 { "backups", 0, OPT_BOOLEAN, "backups", -1 },
159 { "base", 'B', OPT_VALUE, "base", -1 },
160 { "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
161 { "cache", 0, OPT_BOOLEAN, "cache", -1 },
162 { "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
163 { "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
164 { "continue", 'c', OPT_BOOLEAN, "continue", -1 },
165 { "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
166 { "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
167 { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
168 { IF_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
169 { "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
170 { "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
171 { "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
172 { "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
173 { "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
174 { "domains", 'D', OPT_VALUE, "domains", -1 },
175 { "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
176 { "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
177 { "egd-file", 0, OPT_VALUE, "egdfile", -1 },
178 { "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
179 { "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
180 { "execute", 'e', OPT__EXECUTE, NULL, required_argument },
181 { "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
182 { "follow-tags", 0, OPT_VALUE, "followtags", -1 },
183 { "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
184 { "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
185 { "ftp-passwd", 0, OPT_VALUE, "ftppasswd", -1 },
186 { "glob", 0, OPT_BOOLEAN, "glob", -1 },
187 { "header", 0, OPT_VALUE, "header", -1 },
188 { "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
189 { "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
190 { "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
191 { "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
192 { "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
193 { "http-passwd", 0, OPT_VALUE, "httppasswd", -1 },
194 { "http-user", 0, OPT_VALUE, "httpuser", -1 },
195 { "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
196 { "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
197 { "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
199 { "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
200 { "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
202 { "input-file", 'i', OPT_VALUE, "input", -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 { "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
208 { "no", 'n', OPT__NO, NULL, required_argument },
209 { "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
210 { "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
211 { "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
212 { "output-file", 'o', OPT_VALUE, "logfile", -1 },
213 { "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
214 { "parent", 0, OPT__PARENT, NULL, optional_argument },
215 { "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
216 { "post-data", 0, OPT_VALUE, "postdata", -1 },
217 { "post-file", 0, OPT_VALUE, "postfile", -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"),
475 -nd, --no-directories don't create directories.\n"),
477 -x, --force-directories force creation of directories.\n"),
479 -nH, --no-host-directories don't create host directories.\n"),
481 --protocol-directories use protocol name in directories.\n"),
483 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
485 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
491 --http-user=USER set http user to USER.\n"),
493 --http-passwd=PASS set http password to PASS.\n"),
495 --no-cache disallow server-cached data.\n"),
497 -E, --html-extension save HTML documents with `.html' extension.\n"),
499 --ignore-length ignore `Content-Length' header field.\n"),
501 --header=STRING insert STRING among the headers.\n"),
503 --proxy-user=USER set USER as proxy username.\n"),
505 --proxy-passwd=PASS set PASS as proxy password.\n"),
507 --referer=URL include `Referer: URL' header in HTTP request.\n"),
509 --save-headers save the HTTP headers to file.\n"),
511 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
513 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
515 --no-cookies don't use cookies.\n"),
517 --load-cookies=FILE load cookies from FILE before session.\n"),
519 --save-cookies=FILE save cookies to FILE after session.\n"),
521 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
523 --post-data=STRING use the POST method; send STRING as the data.\n"),
525 --post-file=FILE use the POST method; send contents of FILE.\n"),
530 HTTPS (SSL) options:\n"),
532 --sslcertfile=FILE optional client certificate.\n"),
534 --sslcertkey=KEYFILE optional keyfile for this certificate.\n"),
536 --egd-file=FILE file name of the EGD socket.\n"),
538 --sslcadir=DIR dir where hash list of CA's are stored.\n"),
540 --sslcafile=FILE file with bundle of CA's.\n"),
542 --sslcerttype=0/1 Client-Cert type 0=PEM (default) / 1=ASN1 (DER).\n"),
544 --sslcheckcert=0/1 Check the server cert against given CA.\n"),
546 --sslprotocol=0-3 choose SSL protocol; 0=automatic,\n\
547 1=SSLv2 2=SSLv3 3=TLSv1.\n"),
549 #endif /* HAVE_SSL */
554 --no-remove-listing don't remove `.listing' files.\n"),
556 --no-glob turn off FTP file name globbing.\n"),
558 --passive-ftp use the \"passive\" transfer mode.\n"),
560 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
562 --preserve-permissions preserve remote file permissions.\n"),
566 Recursive download:\n"),
568 -r, --recursive specify recursive download.\n"),
570 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
572 --delete-after delete files locally after downloading them.\n"),
574 -k, --convert-links make links in downloaded HTML point to local files.\n"),
576 -K, --backup-converted before converting file X, back up as X.orig.\n"),
578 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n"),
580 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
582 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
586 Recursive accept/reject:\n"),
588 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
590 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
592 -D, --domains=LIST comma-separated list of accepted domains.\n"),
594 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
596 --follow-ftp follow FTP links from HTML documents.\n"),
598 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
600 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
602 -H, --span-hosts go to foreign hosts when recursive.\n"),
604 -L, --relative follow relative links only.\n"),
606 -I, --include-directories=LIST list of allowed directories.\n"),
608 -X, --exclude-directories=LIST list of excluded directories.\n"),
610 -np, --no-parent don't ascend to the parent directory.\n"),
613 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
618 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
622 for (i = 0; i < countof (help); i++)
623 fputs (_(help[i]), stdout);
631 printf ("GNU Wget %s\n\n", version_string);
633 Copyright (C) 2005 Free Software Foundation, Inc.\n"), stdout);
635 This program is distributed in the hope that it will be useful,\n\
636 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
637 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
638 GNU General Public License for more details.\n"), stdout);
639 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
645 main (int argc, char *const *argv)
648 int i, ret, longindex;
650 int append_to_log = 0;
654 /* Construct the name of the executable, without the directory part. */
655 exec_name = strrchr (argv[0], PATH_SEPARATOR);
662 /* Drop extension (typically .EXE) from executable filename. */
663 windows_main_junk (&argc, (char **) argv, (char **) &exec_name);
666 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
671 while ((ret = getopt_long (argc, argv,
672 short_options, long_options, &longindex)) != -1)
675 struct cmdline_option *opt;
677 /* If LONGINDEX is unchanged, it means RET is referring a short
685 printf (_("Try `%s --help' for more options.\n"), exec_name);
688 /* Find the short option character in the mapping. */
689 longindex = optmap[ret - 32];
691 val = long_options[longindex].val;
693 /* Use the retrieved value to locate the option in the
694 option_data array, and to see if we're dealing with the
695 negated "--no-FOO" variant of the boolean option "--foo". */
696 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
700 setoptval (opt->data, optarg);
704 /* The user has specified a value -- use it. */
705 setoptval (opt->data, optarg);
708 /* NEG is true for `--no-FOO' style boolean options. */
709 int neg = val & BOOLEAN_NEG_MARKER;
710 setoptval (opt->data, neg ? "0" : "1");
715 void (*func) PARAMS ((void)) = opt->data;
719 case OPT__APPEND_OUTPUT:
720 setoptval ("logfile", optarg);
724 run_command (optarg);
728 /* We support real --no-FOO flags now, but keep these
729 short options for convenience and backward
732 for (p = optarg; *p; p++)
736 setoptval ("verbose", "0");
739 setoptval ("addhostdir", "0");
742 setoptval ("dirstruct", "0");
745 setoptval ("noclobber", "1");
748 setoptval ("noparent", "1");
751 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
754 printf (_("Try `%s --help' for more options.\n"), exec_name);
762 /* The wgetrc commands are named noparent and noclobber,
763 so we must revert the meaning of the cmdline options
764 before passing the value to setoptval. */
767 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
768 || (TOLOWER (optarg[0]) == 'o'
769 && TOLOWER (optarg[1]) == 'n'));
770 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
774 case OPT__DONT_REMOVE_LISTING:
775 setoptval ("removelisting", "0");
782 /* All user options have now been processed, so it's now safe to do
783 interoption dependency checks. */
785 if (opt.reclevel == 0)
786 opt.reclevel = INFINITE_RECURSION; /* see wget.h for commentary on this */
788 if (opt.page_requisites && !opt.recursive)
790 /* Don't set opt.recursive here because it would confuse the FTP
791 code. Instead, call retrieve_tree below when either
792 page_requisites or recursive is requested. */
794 if (!opt.no_dirstruct)
795 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
798 if (opt.verbose == -1)
799 opt.verbose = !opt.quiet;
802 if (opt.verbose && opt.quiet)
804 printf (_("Can't be verbose and quiet at the same time.\n"));
808 if (opt.timestamping && opt.noclobber)
811 Can't timestamp and not clobber old files at the same time.\n"));
816 if (opt.ipv4_only && opt.ipv6_only)
818 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
824 nurl = argc - optind;
825 if (!nurl && !opt.input_filename)
827 /* No URL specified. */
828 printf (_("%s: missing URL\n"), exec_name);
831 /* #### Something nicer should be printed here -- similar to the
832 pre-1.5 `--help' page. */
833 printf (_("Try `%s --help' for more options.\n"), exec_name);
838 fork_to_background ();
840 /* Initialize progress. Have to do this after the options are
841 processed so we know where the log file is. */
843 set_progress_implementation (opt.progress_type);
845 /* Fill in the arguments. */
846 url = alloca_array (char *, nurl + 1);
847 for (i = 0; i < nurl; i++, optind++)
849 char *rewritten = rewrite_shorthand_url (argv[optind]);
853 url[i] = xstrdup (argv[optind]);
857 /* Initialize logging. */
858 log_init (opt.lfilename, append_to_log);
860 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
863 /* Open the output filename if necessary. */
864 if (opt.output_document)
866 extern FILE *output_stream;
867 extern int output_stream_regular;
869 if (HYPHENP (opt.output_document))
870 output_stream = stdout;
874 output_stream = fopen (opt.output_document,
875 opt.always_rest ? "ab" : "wb");
876 if (output_stream == NULL)
878 perror (opt.output_document);
881 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
882 output_stream_regular = 1;
890 /* Setup the signal handler to redirect output when hangup is
893 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
894 signal(SIGHUP, redirect_output_signal);
895 /* ...and do the same for SIGUSR1. */
896 signal (SIGUSR1, redirect_output_signal);
897 /* Writing to a closed socket normally signals SIGPIPE, and the
898 process exits. What we want is to ignore SIGPIPE and just check
899 for the return value of write(). */
900 signal (SIGPIPE, SIG_IGN);
902 signal (SIGWINCH, progress_handle_sigwinch);
904 #endif /* HAVE_SIGNAL */
906 status = RETROK; /* initialize it, just-in-case */
907 /* Retrieve the URLs from argument list. */
908 for (t = url; *t; t++)
910 char *filename = NULL, *redirected_URL = NULL;
913 if ((opt.recursive || opt.page_requisites)
914 && url_scheme (*t) != SCHEME_FTP)
915 status = retrieve_tree (*t);
917 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
919 if (opt.delete_after && file_exists_p(filename))
921 DEBUGP (("Removing file due to --delete-after in main():\n"));
922 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
923 if (unlink (filename))
924 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
927 xfree_null (redirected_URL);
928 xfree_null (filename);
931 /* And then from the input file, if any. */
932 if (opt.input_filename)
935 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
937 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
940 /* Print the downloaded sum. */
941 if (opt.recursive || opt.page_requisites
943 || (opt.input_filename && total_downloaded_bytes != 0))
945 logprintf (LOG_NOTQUIET,
946 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
947 time_str (NULL), legible_large_int (total_downloaded_bytes),
949 /* Print quota warning, if exceeded. */
950 if (opt.quota && total_downloaded_bytes > opt.quota)
951 logprintf (LOG_NOTQUIET,
952 _("Download quota (%s bytes) EXCEEDED!\n"),
953 legible (opt.quota));
956 if (opt.cookies_output && wget_cookie_jar)
957 cookie_jar_save (wget_cookie_jar, opt.cookies_output);
959 if (opt.convert_links && !opt.delete_after)
960 convert_all_links ();
963 for (i = 0; i < nurl; i++)
968 print_malloc_debug_stats ();
970 if (status == RETROK)
977 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
978 will proceed operation as usual, trying to write into a log file.
979 If that is impossible, the output will be turned off.
981 #### It is unsafe to do call libc functions from a signal handler.
982 What we should do is, set a global variable, and have the code in
986 redirect_output_signal (int sig)
988 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
989 (sig == SIGUSR1 ? "SIGUSR1" :
991 log_request_redirect_output (signal_name);
992 progress_schedule_redirect ();
993 signal (sig, redirect_output_signal);
995 #endif /* HAVE_SIGNAL */