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 { "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
218 { "progress", 0, OPT_VALUE, "progress", -1 },
219 { "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
220 { "proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
221 { "proxy-passwd", 0, OPT_VALUE, "proxypasswd", -1 },
222 { "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
223 { "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
224 { "quota", 'Q', OPT_VALUE, "quota", -1 },
225 { "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
226 { "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
227 { "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
228 { "referer", 0, OPT_VALUE, "referer", -1 },
229 { "reject", 'R', OPT_VALUE, "reject", -1 },
230 { "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
231 { "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
232 { "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
233 { "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
234 { "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
235 { "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
236 { "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
237 { "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
238 { "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
239 { "spider", 0, OPT_BOOLEAN, "spider", -1 },
240 { IF_SSL ("sslcadir"), 0, OPT_VALUE, "sslcadir", -1 },
241 { IF_SSL ("sslcafile"), 0, OPT_VALUE, "sslcafile", -1 },
242 { IF_SSL ("sslcertfile"), 0, OPT_VALUE, "sslcertfile", -1 },
243 { IF_SSL ("sslcertkey"), 0, OPT_VALUE, "sslcertkey", -1 },
244 { IF_SSL ("sslcerttype"), 0, OPT_VALUE, "sslcerttype", -1 },
245 { IF_SSL ("sslcheckcert"), 0, OPT_VALUE, "sslcheckcert", -1 },
246 { IF_SSL ("sslprotocol"), 0, OPT_VALUE, "sslprotocol", -1 },
247 { "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
248 { "timeout", 'T', OPT_VALUE, "timeout", -1 },
249 { "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
250 { "tries", 't', OPT_VALUE, "tries", -1 },
251 { "use-proxy", 'Y', OPT_BOOLEAN, "useproxy", -1 },
252 { "user-agent", 'U', OPT_VALUE, "useragent", -1 },
253 { "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
254 { "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
255 { "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
256 { "wait", 'w', OPT_VALUE, "wait", -1 },
257 { "waitretry", 0, OPT_VALUE, "waitretry", -1 },
263 /* Return a string that contains S with "no-" prepended. The string
264 is NUL-terminated and allocated off static storage at Wget
268 no_prefix (const char *s)
270 static char buffer[1024];
271 static char *p = buffer;
274 int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
275 if (p + size >= buffer + sizeof (buffer))
278 cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
284 /* The arguments that that main passes to getopt_long. */
285 static struct option long_options[2 * countof (option_data) + 1];
286 static char short_options[128];
288 /* Mapping between short option chars and option_data indices. */
289 static unsigned char optmap[96];
291 /* Marker for `--no-FOO' values in long_options. */
292 #define BOOLEAN_NEG_MARKER 1024
294 /* Initialize the long_options array used by getopt_long from the data
300 char *p = short_options;
302 for (i = 0; i < countof (option_data); i++)
304 struct cmdline_option *opt = &option_data[i];
305 struct option *longopt;
308 /* The option is disabled. */
311 longopt = &long_options[o++];
312 longopt->name = opt->long_name;
316 *p++ = opt->short_name;
317 optmap[opt->short_name - 32] = longopt - long_options;
322 longopt->has_arg = required_argument;
327 /* Don't specify optional arguments for boolean short
328 options. They are evil because they prevent combining of
330 longopt->has_arg = optional_argument;
331 /* For Boolean options, add the "--no-FOO" variant, which is
332 identical to "--foo", except it has opposite meaning and
333 it doesn't allow an argument. */
334 longopt = &long_options[o++];
335 longopt->name = no_prefix (opt->long_name);
336 longopt->has_arg = no_argument;
337 /* Mask the value so we'll be able to recognize that we're
338 dealing with the false value. */
339 longopt->val = i | BOOLEAN_NEG_MARKER;
342 assert (opt->argtype != -1);
343 longopt->has_arg = opt->argtype;
346 if (longopt->has_arg == required_argument)
348 /* Don't handle optional_argument */
352 /* Terminate short_options. */
354 /* No need for xzero(long_options[o]) because its storage is static
355 and it will be zeroed by default. */
356 assert (o <= countof (long_options));
359 /* Print the usage message. */
363 printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
366 /* Print the help message, describing all the available options. If
367 you add an option, be sure to update this list. */
371 /* We split the help text this way to ease translation of individual
373 static const char *help[] = {
376 Mandatory arguments to long options are mandatory for short options too.\n\n"),
380 -V, --version display the version of Wget and exit.\n"),
382 -h, --help print this help.\n"),
384 -b, --background go to background after startup.\n"),
386 -e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
390 Logging and input file:\n"),
392 -o, --output-file=FILE log messages to FILE.\n"),
394 -a, --append-output=FILE append messages to FILE.\n"),
397 -d, --debug print lots of debugging information.\n"),
400 -q, --quiet quiet (no output).\n"),
402 -v, --verbose be verbose (this is the default).\n"),
404 -nv, --no-verbose turn off verboseness, without being quiet.\n"),
406 -i, --input-file=FILE download URLs found in FILE.\n"),
408 -F, --force-html treat input file as HTML.\n"),
410 -B, --base=URL prepends URL to relative links in -F -i file.\n"),
416 -t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
418 --retry-connrefused retry even if connection is refused.\n"),
420 -O, --output-document=FILE write documents to FILE.\n"),
422 -nc, --no-clobber skip downloads that would download to\n\
425 -c, --continue resume getting a partially-downloaded file.\n"),
427 --progress=TYPE select progress gauge type.\n"),
429 -N, --timestamping don't re-retrieve files unless newer than\n\
432 -S, --server-response print server response.\n"),
434 --spider don't download anything.\n"),
436 -T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
438 --dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
440 --connect-timeout=SECS set the connect timeout to SECS.\n"),
442 --read-timeout=SECS set the read timeout to SECS.\n"),
444 -w, --wait=SECONDS wait SECONDS between retrievals.\n"),
446 --waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
448 --random-wait wait from 0...2*WAIT secs between retrievals.\n"),
450 -Y, --proxy explicitly turn on proxy.\n"),
452 --no-proxy explicitly turn off proxy.\n"),
454 -Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
456 --bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
458 --limit-rate=RATE limit download rate to RATE.\n"),
460 --no-dns-cache disable caching DNS lookups.\n"),
462 --restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
465 -4, --inet4-only connect only to IPv4 addresses.\n"),
467 -6, --inet6-only connect only to IPv6 addresses.\n"),
474 -nd, --no-directories don't create directories.\n"),
476 -x, --force-directories force creation of directories.\n"),
478 -nH, --no-host-directories don't create host directories.\n"),
480 --protocol-directories use protocol name in directories.\n"),
482 -P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
484 --cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
490 --http-user=USER set http user to USER.\n"),
492 --http-passwd=PASS set http password to PASS.\n"),
494 --no-cache disallow server-cached data.\n"),
496 -E, --html-extension save HTML documents with `.html' extension.\n"),
498 --ignore-length ignore `Content-Length' header field.\n"),
500 --header=STRING insert STRING among the headers.\n"),
502 --proxy-user=USER set USER as proxy username.\n"),
504 --proxy-passwd=PASS set PASS as proxy password.\n"),
506 --referer=URL include `Referer: URL' header in HTTP request.\n"),
508 --save-headers save the HTTP headers to file.\n"),
510 -U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
512 --no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
514 --no-cookies don't use cookies.\n"),
516 --load-cookies=FILE load cookies from FILE before session.\n"),
518 --save-cookies=FILE save cookies to FILE after session.\n"),
520 --keep-session-cookies load and save session (non-permanent) cookies.\n"),
522 --post-data=STRING use the POST method; send STRING as the data.\n"),
524 --post-file=FILE use the POST method; send contents of FILE.\n"),
529 HTTPS (SSL) options:\n"),
531 --sslcertfile=FILE optional client certificate.\n"),
533 --sslcertkey=KEYFILE optional keyfile for this certificate.\n"),
535 --egd-file=FILE file name of the EGD socket.\n"),
537 --sslcadir=DIR dir where hash list of CA's are stored.\n"),
539 --sslcafile=FILE file with bundle of CA's.\n"),
541 --sslcerttype=0/1 Client-Cert type 0=PEM (default) / 1=ASN1 (DER).\n"),
543 --sslcheckcert=0/1 Check the server cert against given CA.\n"),
545 --sslprotocol=0-3 choose SSL protocol; 0=automatic,\n\
546 1=SSLv2 2=SSLv3 3=TLSv1.\n"),
548 #endif /* HAVE_SSL */
553 --no-remove-listing don't remove `.listing' files.\n"),
555 --no-glob turn off FTP file name globbing.\n"),
557 --no-passive-ftp disable the \"passive\" transfer mode.\n"),
559 --retr-symlinks when recursing, get linked-to files (not dir).\n"),
561 --preserve-permissions preserve remote file permissions.\n"),
565 Recursive download:\n"),
567 -r, --recursive specify recursive download.\n"),
569 -l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
571 --delete-after delete files locally after downloading them.\n"),
573 -k, --convert-links make links in downloaded HTML point to local files.\n"),
575 -K, --backup-converted before converting file X, back up as X.orig.\n"),
577 -m, --mirror shortcut option equivalent to -r -N -l inf -nr.\n"),
579 -p, --page-requisites get all images, etc. needed to display HTML page.\n"),
581 --strict-comments turn on strict (SGML) handling of HTML comments.\n"),
585 Recursive accept/reject:\n"),
587 -A, --accept=LIST comma-separated list of accepted extensions.\n"),
589 -R, --reject=LIST comma-separated list of rejected extensions.\n"),
591 -D, --domains=LIST comma-separated list of accepted domains.\n"),
593 --exclude-domains=LIST comma-separated list of rejected domains.\n"),
595 --follow-ftp follow FTP links from HTML documents.\n"),
597 --follow-tags=LIST comma-separated list of followed HTML tags.\n"),
599 --ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
601 -H, --span-hosts go to foreign hosts when recursive.\n"),
603 -L, --relative follow relative links only.\n"),
605 -I, --include-directories=LIST list of allowed directories.\n"),
607 -X, --exclude-directories=LIST list of excluded directories.\n"),
609 -np, --no-parent don't ascend to the parent directory.\n"),
612 N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
617 printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
621 for (i = 0; i < countof (help); i++)
622 fputs (_(help[i]), stdout);
630 printf ("GNU Wget %s\n\n", version_string);
632 Copyright (C) 2005 Free Software Foundation, Inc.\n"), stdout);
634 This program is distributed in the hope that it will be useful,\n\
635 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
636 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
637 GNU General Public License for more details.\n"), stdout);
638 fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
644 main (int argc, char *const *argv)
647 int i, ret, longindex;
649 int append_to_log = 0;
653 /* Construct the name of the executable, without the directory part. */
654 exec_name = strrchr (argv[0], PATH_SEPARATOR);
661 /* Drop extension (typically .EXE) from executable filename. */
662 windows_main (&argc, (char **) argv, (char **) &exec_name);
665 /* Set option defaults; read the system wgetrc and ~/.wgetrc. */
670 while ((ret = getopt_long (argc, argv,
671 short_options, long_options, &longindex)) != -1)
674 struct cmdline_option *opt;
676 /* If LONGINDEX is unchanged, it means RET is referring a short
684 printf (_("Try `%s --help' for more options.\n"), exec_name);
687 /* Find the short option character in the mapping. */
688 longindex = optmap[ret - 32];
690 val = long_options[longindex].val;
692 /* Use the retrieved value to locate the option in the
693 option_data array, and to see if we're dealing with the
694 negated "--no-FOO" variant of the boolean option "--foo". */
695 opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
699 setoptval (opt->data, optarg);
703 /* The user has specified a value -- use it. */
704 setoptval (opt->data, optarg);
707 /* NEG is true for `--no-FOO' style boolean options. */
708 int neg = val & BOOLEAN_NEG_MARKER;
709 setoptval (opt->data, neg ? "0" : "1");
714 void (*func) PARAMS ((void)) = (void (*) PARAMS ((void))) opt->data;
718 case OPT__APPEND_OUTPUT:
719 setoptval ("logfile", optarg);
723 run_command (optarg);
727 /* We support real --no-FOO flags now, but keep these
728 short options for convenience and backward
731 for (p = optarg; *p; p++)
735 setoptval ("verbose", "0");
738 setoptval ("addhostdir", "0");
741 setoptval ("dirstruct", "0");
744 setoptval ("noclobber", "1");
747 setoptval ("noparent", "1");
750 printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
753 printf (_("Try `%s --help' for more options.\n"), exec_name);
761 /* The wgetrc commands are named noparent and noclobber,
762 so we must revert the meaning of the cmdline options
763 before passing the value to setoptval. */
766 flag = (*optarg == '1' || TOLOWER (*optarg) == 'y'
767 || (TOLOWER (optarg[0]) == 'o'
768 && TOLOWER (optarg[1]) == 'n'));
769 setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
773 case OPT__DONT_REMOVE_LISTING:
774 setoptval ("removelisting", "0");
781 /* All user options have now been processed, so it's now safe to do
782 interoption dependency checks. */
784 if (opt.reclevel == 0)
785 opt.reclevel = INFINITE_RECURSION; /* see wget.h for commentary on this */
787 if (opt.page_requisites && !opt.recursive)
789 /* Don't set opt.recursive here because it would confuse the FTP
790 code. Instead, call retrieve_tree below when either
791 page_requisites or recursive is requested. */
793 if (!opt.no_dirstruct)
794 opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
797 if (opt.verbose == -1)
798 opt.verbose = !opt.quiet;
801 if (opt.verbose && opt.quiet)
803 printf (_("Can't be verbose and quiet at the same time.\n"));
807 if (opt.timestamping && opt.noclobber)
810 Can't timestamp and not clobber old files at the same time.\n"));
815 if (opt.ipv4_only && opt.ipv6_only)
817 printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
823 nurl = argc - optind;
824 if (!nurl && !opt.input_filename)
826 /* No URL specified. */
827 printf (_("%s: missing URL\n"), exec_name);
830 /* #### Something nicer should be printed here -- similar to the
831 pre-1.5 `--help' page. */
832 printf (_("Try `%s --help' for more options.\n"), exec_name);
837 fork_to_background ();
839 /* Initialize progress. Have to do this after the options are
840 processed so we know where the log file is. */
842 set_progress_implementation (opt.progress_type);
844 /* Fill in the arguments. */
845 url = alloca_array (char *, nurl + 1);
846 for (i = 0; i < nurl; i++, optind++)
848 char *rewritten = rewrite_shorthand_url (argv[optind]);
852 url[i] = xstrdup (argv[optind]);
856 /* Initialize logging. */
857 log_init (opt.lfilename, append_to_log);
859 DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
862 /* Open the output filename if necessary. */
863 if (opt.output_document)
865 extern FILE *output_stream;
866 extern int output_stream_regular;
868 if (HYPHENP (opt.output_document))
869 output_stream = stdout;
873 output_stream = fopen (opt.output_document,
874 opt.always_rest ? "ab" : "wb");
875 if (output_stream == NULL)
877 perror (opt.output_document);
880 if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
881 output_stream_regular = 1;
889 /* Setup the signal handler to redirect output when hangup is
892 if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
893 signal(SIGHUP, redirect_output_signal);
894 /* ...and do the same for SIGUSR1. */
895 signal (SIGUSR1, redirect_output_signal);
896 /* Writing to a closed socket normally signals SIGPIPE, and the
897 process exits. What we want is to ignore SIGPIPE and just check
898 for the return value of write(). */
899 signal (SIGPIPE, SIG_IGN);
901 signal (SIGWINCH, progress_handle_sigwinch);
903 #endif /* HAVE_SIGNAL */
905 status = RETROK; /* initialize it, just-in-case */
906 /* Retrieve the URLs from argument list. */
907 for (t = url; *t; t++)
909 char *filename = NULL, *redirected_URL = NULL;
912 if ((opt.recursive || opt.page_requisites)
913 && url_scheme (*t) != SCHEME_FTP)
914 status = retrieve_tree (*t);
916 status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt);
918 if (opt.delete_after && file_exists_p(filename))
920 DEBUGP (("Removing file due to --delete-after in main():\n"));
921 logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
922 if (unlink (filename))
923 logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
926 xfree_null (redirected_URL);
927 xfree_null (filename);
930 /* And then from the input file, if any. */
931 if (opt.input_filename)
934 status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
936 logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
939 /* Print the downloaded sum. */
940 if (opt.recursive || opt.page_requisites
942 || (opt.input_filename && total_downloaded_bytes != 0))
944 logprintf (LOG_NOTQUIET,
945 _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"),
946 time_str (NULL), with_thousand_seps_large (total_downloaded_bytes),
948 /* Print quota warning, if exceeded. */
949 if (opt.quota && total_downloaded_bytes > opt.quota)
950 logprintf (LOG_NOTQUIET,
951 _("Download quota (%s bytes) EXCEEDED!\n"),
952 with_thousand_seps_large (opt.quota));
955 if (opt.cookies_output)
958 if (opt.convert_links && !opt.delete_after)
959 convert_all_links ();
962 for (i = 0; i < nurl; i++)
967 print_malloc_debug_stats ();
969 if (status == RETROK)
976 /* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
977 will proceed operation as usual, trying to write into a log file.
978 If that is impossible, the output will be turned off.
980 #### It is unsafe to do call libc functions from a signal handler.
981 What we should do is, set a global variable, and have the code in
985 redirect_output_signal (int sig)
987 const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
988 (sig == SIGUSR1 ? "SIGUSR1" :
990 log_request_redirect_output (signal_name);
991 progress_schedule_redirect ();
992 signal (sig, redirect_output_signal);
994 #endif /* HAVE_SIGNAL */