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/* Command line parsing.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2004, 2005, 2006, 2007 Free Software Foundation, Inc.
This file is part of GNU Wget.
GNU Wget is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
GNU Wget is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Wget. If not, see <http://www.gnu.org/licenses/>.
Additional permission under GNU GPL version 3 section 7
If you modify this program, or any covered work, by linking or
combining it with the OpenSSL project's OpenSSL library (or a
modified version of that library), containing parts covered by the
terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
grants you additional permission to convey the resulting work.
Corresponding Source for a non-source form of such a combination
shall include the source code for the parts of OpenSSL used as well
as that of the covered work. */
#include "wget.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <string.h>
#include <signal.h>
#ifdef ENABLE_NLS
# include <locale.h>
#endif
#include <assert.h>
#include <errno.h>
#include <time.h>
#include "utils.h"
#include "init.h"
#include "retr.h"
#include "recur.h"
#include "host.h"
#include "url.h"
#include "progress.h" /* for progress_handle_sigwinch */
#include "convert.h"
#include "spider.h"
#include "http.h" /* for save_cookies */
#include <getopt.h>
#ifndef PATH_SEPARATOR
# define PATH_SEPARATOR '/'
#endif
struct options opt;
extern char *version_string;
#if defined(SIGHUP) || defined(SIGUSR1)
static void redirect_output_signal (int);
#endif
const char *exec_name;
#ifndef TESTING
/* Initialize I18N/L10N. That amounts to invoking setlocale, and
setting up gettext's message catalog using bindtextdomain and
textdomain. Does nothing if NLS is disabled or missing. */
static void
i18n_initialize (void)
{
/* ENABLE_NLS implies existence of functions invoked here. */
#ifdef ENABLE_NLS
/* Set the current locale. */
setlocale (LC_ALL, "");
/* Set the text message domain. */
bindtextdomain ("wget", LOCALEDIR);
textdomain ("wget");
#endif /* ENABLE_NLS */
}
/* Definition of command-line options. */
static void print_help (void);
static void print_version (void);
#ifdef HAVE_SSL
# define IF_SSL(x) x
#else
# define IF_SSL(x) NULL
#endif
#ifdef ENABLE_DEBUG
# define WHEN_DEBUG(x) x
#else
# define WHEN_DEBUG(x) NULL
#endif
struct cmdline_option {
const char *long_name;
char short_name;
enum {
OPT_VALUE,
OPT_BOOLEAN,
OPT_FUNCALL,
/* Non-standard options that have to be handled specially in
main(). */
OPT__APPEND_OUTPUT,
OPT__CLOBBER,
OPT__DONT_REMOVE_LISTING,
OPT__EXECUTE,
OPT__NO,
OPT__PARENT
} type;
const void *data; /* for standard options */
int argtype; /* for non-standard options */
};
static struct cmdline_option option_data[] =
{
{ "accept", 'A', OPT_VALUE, "accept", -1 },
{ "append-output", 'a', OPT__APPEND_OUTPUT, NULL, required_argument },
{ "background", 'b', OPT_BOOLEAN, "background", -1 },
{ "backup-converted", 'K', OPT_BOOLEAN, "backupconverted", -1 },
{ "backups", 0, OPT_BOOLEAN, "backups", -1 },
{ "base", 'B', OPT_VALUE, "base", -1 },
{ "bind-address", 0, OPT_VALUE, "bindaddress", -1 },
{ IF_SSL ("ca-certificate"), 0, OPT_VALUE, "cacertificate", -1 },
{ IF_SSL ("ca-directory"), 0, OPT_VALUE, "cadirectory", -1 },
{ "cache", 0, OPT_BOOLEAN, "cache", -1 },
{ IF_SSL ("certificate"), 0, OPT_VALUE, "certificate", -1 },
{ IF_SSL ("certificate-type"), 0, OPT_VALUE, "certificatetype", -1 },
{ IF_SSL ("check-certificate"), 0, OPT_BOOLEAN, "checkcertificate", -1 },
{ "clobber", 0, OPT__CLOBBER, NULL, optional_argument },
{ "connect-timeout", 0, OPT_VALUE, "connecttimeout", -1 },
{ "continue", 'c', OPT_BOOLEAN, "continue", -1 },
{ "convert-links", 'k', OPT_BOOLEAN, "convertlinks", -1 },
{ "content-disposition", 0, OPT_BOOLEAN, "contentdisposition", -1 },
{ "cookies", 0, OPT_BOOLEAN, "cookies", -1 },
{ "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 },
{ WHEN_DEBUG ("debug"), 'd', OPT_BOOLEAN, "debug", -1 },
{ "delete-after", 0, OPT_BOOLEAN, "deleteafter", -1 },
{ "directories", 0, OPT_BOOLEAN, "dirstruct", -1 },
{ "directory-prefix", 'P', OPT_VALUE, "dirprefix", -1 },
{ "dns-cache", 0, OPT_BOOLEAN, "dnscache", -1 },
{ "dns-timeout", 0, OPT_VALUE, "dnstimeout", -1 },
{ "domains", 'D', OPT_VALUE, "domains", -1 },
{ "dont-remove-listing", 0, OPT__DONT_REMOVE_LISTING, NULL, no_argument },
{ "dot-style", 0, OPT_VALUE, "dotstyle", -1 },
{ "egd-file", 0, OPT_VALUE, "egdfile", -1 },
{ "exclude-directories", 'X', OPT_VALUE, "excludedirectories", -1 },
{ "exclude-domains", 0, OPT_VALUE, "excludedomains", -1 },
{ "execute", 'e', OPT__EXECUTE, NULL, required_argument },
{ "follow-ftp", 0, OPT_BOOLEAN, "followftp", -1 },
{ "follow-tags", 0, OPT_VALUE, "followtags", -1 },
{ "force-directories", 'x', OPT_BOOLEAN, "dirstruct", -1 },
{ "force-html", 'F', OPT_BOOLEAN, "forcehtml", -1 },
{ "ftp-password", 0, OPT_VALUE, "ftppassword", -1 },
{ "ftp-user", 0, OPT_VALUE, "ftpuser", -1 },
{ "glob", 0, OPT_BOOLEAN, "glob", -1 },
{ "header", 0, OPT_VALUE, "header", -1 },
{ "help", 'h', OPT_FUNCALL, (void *)print_help, no_argument },
{ "host-directories", 0, OPT_BOOLEAN, "addhostdir", -1 },
{ "html-extension", 'E', OPT_BOOLEAN, "htmlextension", -1 },
{ "htmlify", 0, OPT_BOOLEAN, "htmlify", -1 },
{ "http-keep-alive", 0, OPT_BOOLEAN, "httpkeepalive", -1 },
{ "http-passwd", 0, OPT_VALUE, "httppassword", -1 }, /* deprecated */
{ "http-password", 0, OPT_VALUE, "httppassword", -1 },
{ "http-user", 0, OPT_VALUE, "httpuser", -1 },
{ "ignore-case", 0, OPT_BOOLEAN, "ignorecase", -1 },
{ "ignore-length", 0, OPT_BOOLEAN, "ignorelength", -1 },
{ "ignore-tags", 0, OPT_VALUE, "ignoretags", -1 },
{ "include-directories", 'I', OPT_VALUE, "includedirectories", -1 },
#ifdef ENABLE_IPV6
{ "inet4-only", '4', OPT_BOOLEAN, "inet4only", -1 },
{ "inet6-only", '6', OPT_BOOLEAN, "inet6only", -1 },
#endif
{ "input-file", 'i', OPT_VALUE, "input", -1 },
{ "keep-session-cookies", 0, OPT_BOOLEAN, "keepsessioncookies", -1 },
{ "level", 'l', OPT_VALUE, "reclevel", -1 },
{ "limit-rate", 0, OPT_VALUE, "limitrate", -1 },
{ "load-cookies", 0, OPT_VALUE, "loadcookies", -1 },
{ "max-redirect", 0, OPT_VALUE, "maxredirect", -1 },
{ "mirror", 'm', OPT_BOOLEAN, "mirror", -1 },
{ "no", 'n', OPT__NO, NULL, required_argument },
{ "no-clobber", 0, OPT_BOOLEAN, "noclobber", -1 },
{ "no-parent", 0, OPT_BOOLEAN, "noparent", -1 },
{ "output-document", 'O', OPT_VALUE, "outputdocument", -1 },
{ "output-file", 'o', OPT_VALUE, "logfile", -1 },
{ "page-requisites", 'p', OPT_BOOLEAN, "pagerequisites", -1 },
{ "parent", 0, OPT__PARENT, NULL, optional_argument },
{ "passive-ftp", 0, OPT_BOOLEAN, "passiveftp", -1 },
{ "password", 0, OPT_VALUE, "password", -1 },
{ "post-data", 0, OPT_VALUE, "postdata", -1 },
{ "post-file", 0, OPT_VALUE, "postfile", -1 },
{ "prefer-family", 0, OPT_VALUE, "preferfamily", -1 },
{ "preserve-permissions", 0, OPT_BOOLEAN, "preservepermissions", -1 },
{ IF_SSL ("private-key"), 0, OPT_VALUE, "privatekey", -1 },
{ IF_SSL ("private-key-type"), 0, OPT_VALUE, "privatekeytype", -1 },
{ "progress", 0, OPT_VALUE, "progress", -1 },
{ "protocol-directories", 0, OPT_BOOLEAN, "protocoldirectories", -1 },
{ "proxy", 0, OPT_BOOLEAN, "useproxy", -1 },
{ "proxy__compat", 'Y', OPT_VALUE, "useproxy", -1 }, /* back-compatible */
{ "proxy-passwd", 0, OPT_VALUE, "proxypassword", -1 }, /* deprecated */
{ "proxy-password", 0, OPT_VALUE, "proxypassword", -1 },
{ "proxy-user", 0, OPT_VALUE, "proxyuser", -1 },
{ "quiet", 'q', OPT_BOOLEAN, "quiet", -1 },
{ "quota", 'Q', OPT_VALUE, "quota", -1 },
{ "random-file", 0, OPT_VALUE, "randomfile", -1 },
{ "random-wait", 0, OPT_BOOLEAN, "randomwait", -1 },
{ "read-timeout", 0, OPT_VALUE, "readtimeout", -1 },
{ "recursive", 'r', OPT_BOOLEAN, "recursive", -1 },
{ "referer", 0, OPT_VALUE, "referer", -1 },
{ "reject", 'R', OPT_VALUE, "reject", -1 },
{ "relative", 'L', OPT_BOOLEAN, "relativeonly", -1 },
{ "remove-listing", 0, OPT_BOOLEAN, "removelisting", -1 },
{ "restrict-file-names", 0, OPT_BOOLEAN, "restrictfilenames", -1 },
{ "retr-symlinks", 0, OPT_BOOLEAN, "retrsymlinks", -1 },
{ "retry-connrefused", 0, OPT_BOOLEAN, "retryconnrefused", -1 },
{ "save-cookies", 0, OPT_VALUE, "savecookies", -1 },
{ "save-headers", 0, OPT_BOOLEAN, "saveheaders", -1 },
{ IF_SSL ("secure-protocol"), 0, OPT_VALUE, "secureprotocol", -1 },
{ "server-response", 'S', OPT_BOOLEAN, "serverresponse", -1 },
{ "span-hosts", 'H', OPT_BOOLEAN, "spanhosts", -1 },
{ "spider", 0, OPT_BOOLEAN, "spider", -1 },
{ "strict-comments", 0, OPT_BOOLEAN, "strictcomments", -1 },
{ "timeout", 'T', OPT_VALUE, "timeout", -1 },
{ "timestamping", 'N', OPT_BOOLEAN, "timestamping", -1 },
{ "tries", 't', OPT_VALUE, "tries", -1 },
{ "user", 0, OPT_VALUE, "user", -1 },
{ "user-agent", 'U', OPT_VALUE, "useragent", -1 },
{ "verbose", 'v', OPT_BOOLEAN, "verbose", -1 },
{ "verbose", 0, OPT_BOOLEAN, "verbose", -1 },
{ "version", 'V', OPT_FUNCALL, (void *) print_version, no_argument },
{ "wait", 'w', OPT_VALUE, "wait", -1 },
{ "waitretry", 0, OPT_VALUE, "waitretry", -1 },
#ifdef MSDOS
{ "wdebug", 0, OPT_BOOLEAN, "wdebug", -1 },
#endif
};
#undef WHEN_DEBUG
#undef IF_SSL
/* Return a string that contains S with "no-" prepended. The string
is NUL-terminated and allocated off static storage at Wget
startup. */
static char *
no_prefix (const char *s)
{
static char buffer[1024];
static char *p = buffer;
char *cp = p;
int size = 3 + strlen (s) + 1; /* "no-STRING\0" */
if (p + size >= buffer + sizeof (buffer))
abort ();
cp[0] = 'n', cp[1] = 'o', cp[2] = '-';
strcpy (cp + 3, s);
p += size;
return cp;
}
/* The arguments that that main passes to getopt_long. */
static struct option long_options[2 * countof (option_data) + 1];
static char short_options[128];
/* Mapping between short option chars and option_data indices. */
static unsigned char optmap[96];
/* Marker for `--no-FOO' values in long_options. */
#define BOOLEAN_NEG_MARKER 1024
/* Initialize the long_options array used by getopt_long from the data
in option_data. */
static void
init_switches (void)
{
char *p = short_options;
int i, o = 0;
for (i = 0; i < countof (option_data); i++)
{
struct cmdline_option *opt = &option_data[i];
struct option *longopt;
if (!opt->long_name)
/* The option is disabled. */
continue;
longopt = &long_options[o++];
longopt->name = opt->long_name;
longopt->val = i;
if (opt->short_name)
{
*p++ = opt->short_name;
optmap[opt->short_name - 32] = longopt - long_options;
}
switch (opt->type)
{
case OPT_VALUE:
longopt->has_arg = required_argument;
if (opt->short_name)
*p++ = ':';
break;
case OPT_BOOLEAN:
/* Specify an optional argument for long options, so that
--option=off works the same as --no-option, for
compatibility with pre-1.10 Wget. However, don't specify
optional arguments short-option booleans because they
prevent combining of short options. */
longopt->has_arg = optional_argument;
/* For Boolean options, add the "--no-FOO" variant, which is
identical to "--foo", except it has opposite meaning and
it doesn't allow an argument. */
longopt = &long_options[o++];
longopt->name = no_prefix (opt->long_name);
longopt->has_arg = no_argument;
/* Mask the value so we'll be able to recognize that we're
dealing with the false value. */
longopt->val = i | BOOLEAN_NEG_MARKER;
break;
default:
assert (opt->argtype != -1);
longopt->has_arg = opt->argtype;
if (opt->short_name)
{
if (longopt->has_arg == required_argument)
*p++ = ':';
/* Don't handle optional_argument */
}
}
}
/* Terminate short_options. */
*p = '\0';
/* No need for xzero(long_options[o]) because its storage is static
and it will be zeroed by default. */
assert (o <= countof (long_options));
}
/* Print the usage message. */
static void
print_usage (void)
{
printf (_("Usage: %s [OPTION]... [URL]...\n"), exec_name);
}
/* Print the help message, describing all the available options. If
you add an option, be sure to update this list. */
static void
print_help (void)
{
/* We split the help text this way to ease translation of individual
entries. */
static const char *help[] = {
"\n",
N_("\
Mandatory arguments to long options are mandatory for short options too.\n\n"),
N_("\
Startup:\n"),
N_("\
-V, --version display the version of Wget and exit.\n"),
N_("\
-h, --help print this help.\n"),
N_("\
-b, --background go to background after startup.\n"),
N_("\
-e, --execute=COMMAND execute a `.wgetrc'-style command.\n"),
"\n",
N_("\
Logging and input file:\n"),
N_("\
-o, --output-file=FILE log messages to FILE.\n"),
N_("\
-a, --append-output=FILE append messages to FILE.\n"),
#ifdef ENABLE_DEBUG
N_("\
-d, --debug print lots of debugging information.\n"),
#endif
#ifdef MSDOS
N_("\
--wdebug print Watt-32 debug output.\n"),
#endif
N_("\
-q, --quiet quiet (no output).\n"),
N_("\
-v, --verbose be verbose (this is the default).\n"),
N_("\
-nv, --no-verbose turn off verboseness, without being quiet.\n"),
N_("\
-i, --input-file=FILE download URLs found in FILE.\n"),
N_("\
-F, --force-html treat input file as HTML.\n"),
N_("\
-B, --base=URL prepends URL to relative links in -F -i file.\n"),
"\n",
N_("\
Download:\n"),
N_("\
-t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).\n"),
N_("\
--retry-connrefused retry even if connection is refused.\n"),
N_("\
-O, --output-document=FILE write documents to FILE.\n"),
N_("\
-nc, --no-clobber skip downloads that would download to\n\
existing files.\n"),
N_("\
-c, --continue resume getting a partially-downloaded file.\n"),
N_("\
--progress=TYPE select progress gauge type.\n"),
N_("\
-N, --timestamping don't re-retrieve files unless newer than\n\
local.\n"),
N_("\
-S, --server-response print server response.\n"),
N_("\
--spider don't download anything.\n"),
N_("\
-T, --timeout=SECONDS set all timeout values to SECONDS.\n"),
N_("\
--dns-timeout=SECS set the DNS lookup timeout to SECS.\n"),
N_("\
--connect-timeout=SECS set the connect timeout to SECS.\n"),
N_("\
--read-timeout=SECS set the read timeout to SECS.\n"),
N_("\
-w, --wait=SECONDS wait SECONDS between retrievals.\n"),
N_("\
--waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.\n"),
N_("\
--random-wait wait from 0...2*WAIT secs between retrievals.\n"),
N_("\
-Y, --proxy explicitly turn on proxy.\n"),
N_("\
--no-proxy explicitly turn off proxy.\n"),
N_("\
-Q, --quota=NUMBER set retrieval quota to NUMBER.\n"),
N_("\
--bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.\n"),
N_("\
--limit-rate=RATE limit download rate to RATE.\n"),
N_("\
--no-dns-cache disable caching DNS lookups.\n"),
N_("\
--restrict-file-names=OS restrict chars in file names to ones OS allows.\n"),
N_("\
--ignore-case ignore case when matching files/directories.\n"),
#ifdef ENABLE_IPV6
N_("\
-4, --inet4-only connect only to IPv4 addresses.\n"),
N_("\
-6, --inet6-only connect only to IPv6 addresses.\n"),
N_("\
--prefer-family=FAMILY connect first to addresses of specified family,\n\
one of IPv6, IPv4, or none.\n"),
#endif
N_("\
--user=USER set both ftp and http user to USER.\n"),
N_("\
--password=PASS set both ftp and http password to PASS.\n"),
"\n",
N_("\
Directories:\n"),
N_("\
-nd, --no-directories don't create directories.\n"),
N_("\
-x, --force-directories force creation of directories.\n"),
N_("\
-nH, --no-host-directories don't create host directories.\n"),
N_("\
--protocol-directories use protocol name in directories.\n"),
N_("\
-P, --directory-prefix=PREFIX save files to PREFIX/...\n"),
N_("\
--cut-dirs=NUMBER ignore NUMBER remote directory components.\n"),
"\n",
N_("\
HTTP options:\n"),
N_("\
--http-user=USER set http user to USER.\n"),
N_("\
--http-password=PASS set http password to PASS.\n"),
N_("\
--no-cache disallow server-cached data.\n"),
N_("\
-E, --html-extension save HTML documents with `.html' extension.\n"),
N_("\
--ignore-length ignore `Content-Length' header field.\n"),
N_("\
--header=STRING insert STRING among the headers.\n"),
N_("\
--max-redirect maximum redirections allowed per page.\n"),
N_("\
--proxy-user=USER set USER as proxy username.\n"),
N_("\
--proxy-password=PASS set PASS as proxy password.\n"),
N_("\
--referer=URL include `Referer: URL' header in HTTP request.\n"),
N_("\
--save-headers save the HTTP headers to file.\n"),
N_("\
-U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.\n"),
N_("\
--no-http-keep-alive disable HTTP keep-alive (persistent connections).\n"),
N_("\
--no-cookies don't use cookies.\n"),
N_("\
--load-cookies=FILE load cookies from FILE before session.\n"),
N_("\
--save-cookies=FILE save cookies to FILE after session.\n"),
N_("\
--keep-session-cookies load and save session (non-permanent) cookies.\n"),
N_("\
--post-data=STRING use the POST method; send STRING as the data.\n"),
N_("\
--post-file=FILE use the POST method; send contents of FILE.\n"),
N_("\
--no-content-disposition don't honor Content-Disposition header.\n"),
"\n",
#ifdef HAVE_SSL
N_("\
HTTPS (SSL/TLS) options:\n"),
N_("\
--secure-protocol=PR choose secure protocol, one of auto, SSLv2,\n\
SSLv3, and TLSv1.\n"),
N_("\
--no-check-certificate don't validate the server's certificate.\n"),
N_("\
--certificate=FILE client certificate file.\n"),
N_("\
--certificate-type=TYPE client certificate type, PEM or DER.\n"),
N_("\
--private-key=FILE private key file.\n"),
N_("\
--private-key-type=TYPE private key type, PEM or DER.\n"),
N_("\
--ca-certificate=FILE file with the bundle of CA's.\n"),
N_("\
--ca-directory=DIR directory where hash list of CA's is stored.\n"),
N_("\
--random-file=FILE file with random data for seeding the SSL PRNG.\n"),
N_("\
--egd-file=FILE file naming the EGD socket with random data.\n"),
"\n",
#endif /* HAVE_SSL */
N_("\
FTP options:\n"),
N_("\
--ftp-user=USER set ftp user to USER.\n"),
N_("\
--ftp-password=PASS set ftp password to PASS.\n"),
N_("\
--no-remove-listing don't remove `.listing' files.\n"),
N_("\
--no-glob turn off FTP file name globbing.\n"),
N_("\
--no-passive-ftp disable the \"passive\" transfer mode.\n"),
N_("\
--retr-symlinks when recursing, get linked-to files (not dir).\n"),
N_("\
--preserve-permissions preserve remote file permissions.\n"),
"\n",
N_("\
Recursive download:\n"),
N_("\
-r, --recursive specify recursive download.\n"),
N_("\
-l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).\n"),
N_("\
--delete-after delete files locally after downloading them.\n"),
N_("\
-k, --convert-links make links in downloaded HTML point to local files.\n"),
N_("\
-K, --backup-converted before converting file X, back up as X.orig.\n"),
N_("\
-m, --mirror shortcut for -N -r -l inf --no-remove-listing.\n"),
N_("\
-p, --page-requisites get all images, etc. needed to display HTML page.\n"),
N_("\
--strict-comments turn on strict (SGML) handling of HTML comments.\n"),
"\n",
N_("\
Recursive accept/reject:\n"),
N_("\
-A, --accept=LIST comma-separated list of accepted extensions.\n"),
N_("\
-R, --reject=LIST comma-separated list of rejected extensions.\n"),
N_("\
-D, --domains=LIST comma-separated list of accepted domains.\n"),
N_("\
--exclude-domains=LIST comma-separated list of rejected domains.\n"),
N_("\
--follow-ftp follow FTP links from HTML documents.\n"),
N_("\
--follow-tags=LIST comma-separated list of followed HTML tags.\n"),
N_("\
--ignore-tags=LIST comma-separated list of ignored HTML tags.\n"),
N_("\
-H, --span-hosts go to foreign hosts when recursive.\n"),
N_("\
-L, --relative follow relative links only.\n"),
N_("\
-I, --include-directories=LIST list of allowed directories.\n"),
N_("\
-X, --exclude-directories=LIST list of excluded directories.\n"),
N_("\
-np, --no-parent don't ascend to the parent directory.\n"),
"\n",
N_("Mail bug reports and suggestions to <bug-wget@gnu.org>.\n")
};
int i;
printf (_("GNU Wget %s, a non-interactive network retriever.\n"),
version_string);
print_usage ();
for (i = 0; i < countof (help); i++)
fputs (_(help[i]), stdout);
exit (0);
}
/* Return a human-readable printed representation of INTERVAL,
measured in seconds. */
static char *
secs_to_human_time (double interval)
{
static char buf[32];
int secs = (int) (interval + 0.5);
int hours, mins, days;
days = secs / 86400, secs %= 86400;
hours = secs / 3600, secs %= 3600;
mins = secs / 60, secs %= 60;
if (days)
sprintf (buf, "%dd %dh %dm %ds", days, hours, mins, secs);
else if (hours)
sprintf (buf, "%dh %dm %ds", hours, mins, secs);
else if (mins)
sprintf (buf, "%dm %ds", mins, secs);
else
sprintf (buf, "%ss", print_decimal (interval));
return buf;
}
static void
print_version (void)
{
printf ("GNU Wget %s\n\n", version_string);
fputs (_("\
Copyright (C) 2007 Free Software Foundation, Inc.\n"), stdout);
fputs (_("\
License GPLv3+: GNU GPL version 3 or later\n\
<http://www.gnu.org/licenses/gpl.html>.\n\
This is free software: you are free to change and redistribute it.\n\
There is NO WARRANTY, to the extent permitted by law.\n"), stdout);
fputs (_("\nOriginally written by Hrvoje Niksic <hniksic@xemacs.org>.\n"),
stdout);
fputs (_("Currently maintained by Micah Cowan <micah@cowan.name>.\n"),
stdout);
exit (0);
}
int
main (int argc, char **argv)
{
char **url, **t;
int i, ret, longindex;
int nurl, status;
bool append_to_log = false;
i18n_initialize ();
/* Construct the name of the executable, without the directory part. */
exec_name = strrchr (argv[0], PATH_SEPARATOR);
if (!exec_name)
exec_name = argv[0];
else
++exec_name;
#ifdef WINDOWS
/* Drop extension (typically .EXE) from executable filename. */
windows_main ((char **) &exec_name);
#endif
/* Set option defaults; read the system wgetrc and ~/.wgetrc. */
initialize ();
init_switches ();
longindex = -1;
while ((ret = getopt_long (argc, argv,
short_options, long_options, &longindex)) != -1)
{
int val;
struct cmdline_option *opt;
/* If LONGINDEX is unchanged, it means RET is referring a short
option. */
if (longindex == -1)
{
if (ret == '?')
{
print_usage ();
printf ("\n");
printf (_("Try `%s --help' for more options.\n"), exec_name);
exit (2);
}
/* Find the short option character in the mapping. */
longindex = optmap[ret - 32];
}
val = long_options[longindex].val;
/* Use the retrieved value to locate the option in the
option_data array, and to see if we're dealing with the
negated "--no-FOO" variant of the boolean option "--foo". */
opt = &option_data[val & ~BOOLEAN_NEG_MARKER];
switch (opt->type)
{
case OPT_VALUE:
setoptval (opt->data, optarg, opt->long_name);
break;
case OPT_BOOLEAN:
if (optarg)
/* The user has specified a value -- use it. */
setoptval (opt->data, optarg, opt->long_name);
else
{
/* NEG is true for `--no-FOO' style boolean options. */
bool neg = !!(val & BOOLEAN_NEG_MARKER);
setoptval (opt->data, neg ? "0" : "1", opt->long_name);
}
break;
case OPT_FUNCALL:
{
void (*func) (void) = (void (*) (void)) opt->data;
func ();
}
break;
case OPT__APPEND_OUTPUT:
setoptval ("logfile", optarg, opt->long_name);
append_to_log = true;
break;
case OPT__EXECUTE:
run_command (optarg);
break;
case OPT__NO:
{
/* We support real --no-FOO flags now, but keep these
short options for convenience and backward
compatibility. */
char *p;
for (p = optarg; *p; p++)
switch (*p)
{
case 'v':
setoptval ("verbose", "0", opt->long_name);
break;
case 'H':
setoptval ("addhostdir", "0", opt->long_name);
break;
case 'd':
setoptval ("dirstruct", "0", opt->long_name);
break;
case 'c':
setoptval ("noclobber", "1", opt->long_name);
break;
case 'p':
setoptval ("noparent", "1", opt->long_name);
break;
default:
printf (_("%s: illegal option -- `-n%c'\n"), exec_name, *p);
print_usage ();
printf ("\n");
printf (_("Try `%s --help' for more options.\n"), exec_name);
exit (1);
}
break;
}
case OPT__PARENT:
case OPT__CLOBBER:
{
/* The wgetrc commands are named noparent and noclobber,
so we must revert the meaning of the cmdline options
before passing the value to setoptval. */
bool flag = true;
if (optarg)
flag = (*optarg == '1' || c_tolower (*optarg) == 'y'
|| (c_tolower (optarg[0]) == 'o'
&& c_tolower (optarg[1]) == 'n'));
setoptval (opt->type == OPT__PARENT ? "noparent" : "noclobber",
flag ? "0" : "1", opt->long_name);
break;
}
case OPT__DONT_REMOVE_LISTING:
setoptval ("removelisting", "0", opt->long_name);
break;
}
longindex = -1;
}
nurl = argc - optind;
/* All user options have now been processed, so it's now safe to do
interoption dependency checks. */
if (opt.reclevel == 0)
opt.reclevel = INFINITE_RECURSION; /* see recur.h for commentary */
if (opt.spider || opt.delete_after)
opt.no_dirstruct = true;
if (opt.page_requisites && !opt.recursive)
{
/* Don't set opt.recursive here because it would confuse the FTP
code. Instead, call retrieve_tree below when either
page_requisites or recursive is requested. */
opt.reclevel = 0;
if (!opt.no_dirstruct)
opt.dirstruct = 1; /* normally handled by cmd_spec_recursive() */
}
if (opt.verbose == -1)
opt.verbose = !opt.quiet;
/* Sanity checks. */
if (opt.verbose && opt.quiet)
{
printf (_("Can't be verbose and quiet at the same time.\n"));
print_usage ();
exit (1);
}
if (opt.timestamping && opt.noclobber)
{
printf (_("\
Can't timestamp and not clobber old files at the same time.\n"));
print_usage ();
exit (1);
}
#ifdef ENABLE_IPV6
if (opt.ipv4_only && opt.ipv6_only)
{
printf (_("Cannot specify both --inet4-only and --inet6-only.\n"));
print_usage ();
exit (1);
}
#endif
if (opt.output_document
&& (opt.page_requisites
|| opt.recursive
|| opt.timestamping))
{
printf (_("Cannot specify -r, -p or -N if -O is given.\n"));
print_usage ();
exit (1);
}
if (opt.output_document
&& opt.convert_links
&& nurl > 1)
{
printf (_("Cannot specify both -k and -O if multiple URLs are given.\n"));
print_usage ();
exit (1);
}
if (!nurl && !opt.input_filename)
{
/* No URL specified. */
printf (_("%s: missing URL\n"), exec_name);
print_usage ();
printf ("\n");
/* #### Something nicer should be printed here -- similar to the
pre-1.5 `--help' page. */
printf (_("Try `%s --help' for more options.\n"), exec_name);
exit (1);
}
#ifdef MSDOS
if (opt.wdebug)
dbug_init();
sock_init();
#else
if (opt.background)
fork_to_background ();
#endif
/* Initialize progress. Have to do this after the options are
processed so we know where the log file is. */
if (opt.verbose)
set_progress_implementation (opt.progress_type);
/* Fill in the arguments. */
url = alloca_array (char *, nurl + 1);
for (i = 0; i < nurl; i++, optind++)
{
char *rewritten = rewrite_shorthand_url (argv[optind]);
if (rewritten)
url[i] = rewritten;
else
url[i] = xstrdup (argv[optind]);
}
url[i] = NULL;
/* Initialize logging. */
log_init (opt.lfilename, append_to_log);
DEBUGP (("DEBUG output created by Wget %s on %s.\n\n", version_string,
OS_TYPE));
/* Open the output filename if necessary. */
if (opt.output_document)
{
if (HYPHENP (opt.output_document))
output_stream = stdout;
else
{
struct_fstat st;
output_stream = fopen (opt.output_document,
opt.always_rest ? "ab" : "wb");
if (output_stream == NULL)
{
perror (opt.output_document);
exit (1);
}
if (fstat (fileno (output_stream), &st) == 0 && S_ISREG (st.st_mode))
output_stream_regular = true;
}
}
#ifdef WINDOWS
ws_startup ();
#endif
#ifdef SIGHUP
/* Setup the signal handler to redirect output when hangup is
received. */
if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
signal(SIGHUP, redirect_output_signal);
#endif
/* ...and do the same for SIGUSR1. */
#ifdef SIGUSR1
signal (SIGUSR1, redirect_output_signal);
#endif
#ifdef SIGPIPE
/* Writing to a closed socket normally signals SIGPIPE, and the
process exits. What we want is to ignore SIGPIPE and just check
for the return value of write(). */
signal (SIGPIPE, SIG_IGN);
#endif
#ifdef SIGWINCH
signal (SIGWINCH, progress_handle_sigwinch);
#endif
status = RETROK; /* initialize it, just-in-case */
/* Retrieve the URLs from argument list. */
for (t = url; *t; t++)
{
char *filename = NULL, *redirected_URL = NULL;
int dt;
if ((opt.recursive || opt.page_requisites)
&& (url_scheme (*t) != SCHEME_FTP || url_uses_proxy (*t)))
{
int old_follow_ftp = opt.follow_ftp;
/* Turn opt.follow_ftp on in case of recursive FTP retrieval */
if (url_scheme (*t) == SCHEME_FTP)
opt.follow_ftp = 1;
status = retrieve_tree (*t);
opt.follow_ftp = old_follow_ftp;
}
else
status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt, opt.recursive);
if (opt.delete_after && file_exists_p(filename))
{
DEBUGP (("Removing file due to --delete-after in main():\n"));
logprintf (LOG_VERBOSE, _("Removing %s.\n"), filename);
if (unlink (filename))
logprintf (LOG_NOTQUIET, "unlink: %s\n", strerror (errno));
}
xfree_null (redirected_URL);
xfree_null (filename);
}
/* And then from the input file, if any. */
if (opt.input_filename)
{
int count;
status = retrieve_from_file (opt.input_filename, opt.force_html, &count);
if (!count)
logprintf (LOG_NOTQUIET, _("No URLs found in %s.\n"),
opt.input_filename);
}
/* Print broken links. */
if (opt.recursive && opt.spider)
{
print_broken_links();
}
/* Print the downloaded sum. */
if ((opt.recursive || opt.page_requisites
|| nurl > 1
|| (opt.input_filename && total_downloaded_bytes != 0))
&&
total_downloaded_bytes != 0)
{
logprintf (LOG_NOTQUIET,
_("FINISHED --%s--\nDownloaded: %d files, %s in %s (%s)\n"),
datetime_str (time (NULL)),
opt.numurls,
human_readable (total_downloaded_bytes),
secs_to_human_time (total_download_time),
retr_rate (total_downloaded_bytes, total_download_time));
/* Print quota warning, if exceeded. */
if (opt.quota && total_downloaded_bytes > opt.quota)
logprintf (LOG_NOTQUIET,
_("Download quota of %s EXCEEDED!\n"),
human_readable (opt.quota));
}
if (opt.cookies_output)
save_cookies ();
if (opt.convert_links && !opt.delete_after)
convert_all_links ();
log_close ();
for (i = 0; i < nurl; i++)
xfree (url[i]);
cleanup ();
#ifdef DEBUG_MALLOC
print_malloc_debug_stats ();
#endif
if (status == RETROK)
return 0;
else
return 1;
}
#endif /* TESTING */
#if defined(SIGHUP) || defined(SIGUSR1)
/* So the signal_name check doesn't blow when only one is available. */
#ifndef SIGHUP
# define SIGHUP -1
#endif
#ifndef SIGUSR1
# define SIGUSR1 -1
#endif
/* Hangup signal handler. When wget receives SIGHUP or SIGUSR1, it
will proceed operation as usual, trying to write into a log file.
If that is impossible, the output will be turned off. */
static void
redirect_output_signal (int sig)
{
const char *signal_name = (sig == SIGHUP ? "SIGHUP" :
(sig == SIGUSR1 ? "SIGUSR1" :
"WTF?!"));
log_request_redirect_output (signal_name);
progress_schedule_redirect ();
signal (sig, redirect_output_signal);
}
#endif
/*
* vim: et ts=2 sw=2
*/
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