/* Command line parsing. Copyright (C) 2003, 2004, 2005 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 2 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, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. In addition, as a special exception, the Free Software Foundation gives permission to link the code of its release of Wget with the OpenSSL project's "OpenSSL" library (or with modified versions of it that use the same license as the "OpenSSL" library), and distribute the linked executables. You must obey the GNU General Public License in all respects for all of the code used other than "OpenSSL". If you modify this file, you may extend this exception to your version of the file, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ #include #include #include #ifdef HAVE_UNISTD_H # include #endif /* HAVE_UNISTD_H */ #include #ifdef HAVE_SIGNAL_H # include #endif #ifdef HAVE_NLS #ifdef HAVE_LOCALE_H # include #endif /* HAVE_LOCALE_H */ #endif /* HAVE_NLS */ #include #include #include "wget.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" /* On GNU system this will include system-wide getopt.h. */ #include "getopt.h" #ifndef PATH_SEPARATOR # define PATH_SEPARATOR '/' #endif struct options opt; extern LARGE_INT total_downloaded_bytes; extern char *version_string; extern struct cookie_jar *wget_cookie_jar; static RETSIGTYPE redirect_output_signal (int); const char *exec_name; /* 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) { /* HAVE_NLS implies existence of functions invoked here. */ #ifdef HAVE_NLS /* Set the current locale. */ /* Where possible, sets only LC_MESSAGES and LC_CTYPE. Other categories, such as numeric, time, or collation, break code that parses data received from the network and relies on C-locale behavior of libc functions. For example, Solaris strptime fails to recognize English month names in non-English locales, which breaks http_atotm. Some implementations of fnmatch perform unwanted case folding in non-C locales. ctype macros, while they were used, provided another example against LC_ALL. */ #if defined(LC_MESSAGES) && defined(LC_CTYPE) setlocale (LC_MESSAGES, ""); setlocale (LC_CTYPE, ""); /* safe because we use safe-ctype */ #else setlocale (LC_ALL, ""); #endif /* Set the text message domain. */ bindtextdomain ("wget", LOCALEDIR); textdomain ("wget"); #endif /* HAVE_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 IF_DEBUG(x) x #else # define IF_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 */ }; 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 }, { "cookies", 0, OPT_BOOLEAN, "cookies", -1 }, { "cut-dirs", 0, OPT_VALUE, "cutdirs", -1 }, { IF_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-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 }, { "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 }, }; #undef IF_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 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"), #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_("\ --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", #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 option equivalent to -r -N -l inf -nr.\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 .\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); } static void print_version (void) { printf ("GNU Wget %s\n\n", version_string); fputs (_("\ Copyright (C) 2005 Free Software Foundation, Inc.\n"), stdout); fputs (_("\ This program is distributed in the hope that it will be useful,\n\ but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ GNU General Public License for more details.\n"), stdout); fputs (_("\nOriginally written by Hrvoje Niksic .\n"), stdout); exit (0); } int main (int argc, char *const *argv) { char **url, **t; int i, ret, longindex; int nurl, status; int append_to_log = 0; 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 (&argc, (char **) argv, (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. */ int 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 = 1; 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. */ int flag = 1; if (optarg) flag = (*optarg == '1' || TOLOWER (*optarg) == 'y' || (TOLOWER (optarg[0]) == 'o' && 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; } /* 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 on this */ 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 nurl = argc - optind; 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); } if (opt.background) fork_to_background (); /* 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) { extern FILE *output_stream; extern int output_stream_regular; if (HYPHENP (opt.output_document)) output_stream = stdout; else { struct_stat 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 = 1; } } #ifdef WINDOWS ws_startup (); #endif /* Setup the signal handler to redirect output when hangup is received. */ #ifdef HAVE_SIGNAL if (signal(SIGHUP, SIG_IGN) != SIG_IGN) signal(SIGHUP, redirect_output_signal); /* ...and do the same for SIGUSR1. */ signal (SIGUSR1, redirect_output_signal); /* 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); #ifdef SIGWINCH signal (SIGWINCH, progress_handle_sigwinch); #endif #endif /* HAVE_SIGNAL */ 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) status = retrieve_tree (*t); else status = retrieve_url (*t, &filename, &redirected_URL, NULL, &dt); 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 the downloaded sum. */ if (opt.recursive || opt.page_requisites || nurl > 1 || (opt.input_filename && total_downloaded_bytes != 0)) { logprintf (LOG_NOTQUIET, _("\nFINISHED --%s--\nDownloaded: %s bytes in %d files\n"), time_str (NULL), with_thousand_seps_large (total_downloaded_bytes), opt.numurls); /* Print quota warning, if exceeded. */ if (opt.quota && total_downloaded_bytes > opt.quota) logprintf (LOG_NOTQUIET, _("Download quota (%s bytes) EXCEEDED!\n"), with_thousand_seps_large (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; } #ifdef HAVE_SIGNAL /* 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. #### It is unsafe to do call libc functions from a signal handler. What we should do is, set a global variable, and have the code in log.c pick it up. */ static RETSIGTYPE 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 /* HAVE_SIGNAL */