/* * $LynxId: LYMain.c,v 1.290 2020/09/03 00:05:23 Steffen.Nurpmeso Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef USE_SESSIONS #include #endif #include #include #include #include #include #include #ifdef VMS #include #endif /* !DECNET */ #ifdef __DJGPP__ #include #include #include #include #include #endif /* __DJGPP__ */ #ifdef __EMX__ #include #endif #if defined(LOCALE) && (!defined(HAVE_LIBINTL_H) || !defined(LC_ALL)) #undef gettext /* Solaris locale.h prototypes gettext() */ #include #ifndef HAVE_GETTEXT #define gettext(s) s #endif #endif /* LOCALE */ #include #include /* ahhhhhhhhhh!! Global variables :-< */ #ifdef SOCKS BOOLEAN socks_flag = TRUE; #endif /* SOCKS */ #ifdef IGNORE_CTRL_C BOOLEAN sigint = FALSE; #endif /* IGNORE_CTRL_C */ #ifdef __DJGPP__ static char init_ctrl_break[1]; #endif /* __DJGPP__ */ #if USE_VMS_MAILER char *mail_adrs = NULL; /* the mask for a VMS mail transport */ #endif #ifdef VMS /* create FIXED 512 binaries */ BOOLEAN UseFixedRecords = USE_FIXED_RECORDS; #endif /* VMS */ #ifndef VMS static char *lynx_version_putenv_command = NULL; char *list_format = NULL; /* LONG_LIST formatting mask */ #endif /* !VMS */ char *ftp_format = NULL; /* LONG_LIST formatting mask */ #ifdef SYSLOG_REQUESTED_URLS char *syslog_txt = NULL; /* syslog arb text for session */ BOOLEAN syslog_requested_urls = FALSE; #endif int cfg_bad_html = BAD_HTML_WARN; #ifdef DIRED_SUPPORT BOOLEAN lynx_edit_mode = FALSE; BOOLEAN no_dired_support = FALSE; HTList *tagged = NULL; int LYAutoUncacheDirLists = 2; /* default dired uncaching behavior */ int dir_list_order = ORDER_BY_NAME; int dir_list_style = MIXED_STYLE; #ifdef OK_OVERRIDE BOOLEAN prev_lynx_edit_mode = FALSE; #endif /* OK_OVERRIDE */ #ifdef OK_PERMIT #ifdef NO_CHANGE_EXECUTE_PERMS BOOLEAN no_change_exec_perms = TRUE; #else BOOLEAN no_change_exec_perms = FALSE; #endif /* NO_CHANGE_EXECUTE_PERMS */ #endif /* OK_PERMIT */ #endif /* DIRED_SUPPORT */ /* Number of docs cached in memory */ int HTCacheSize = DEFAULT_CACHE_SIZE; #if defined(VMS) && defined(VAXC) && !defined(__DECC) /* Don't dump doc cache unless this size is exceeded */ int HTVirtualMemorySize = DEFAULT_VIRTUAL_MEMORY_SIZE; #endif /* VMS && VAXC && !_DECC */ #if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS) #ifndef NEVER_ALLOW_REMOTE_EXEC BOOLEAN local_exec = LOCAL_EXECUTION_LINKS_ALWAYS_ON; #else BOOLEAN local_exec = FALSE; #endif /* NEVER_ALLOW_REMOTE_EXEC */ BOOLEAN local_exec_on_local_files = LOCAL_EXECUTION_LINKS_ON_BUT_NOT_REMOTE; #endif /* EXEC_LINKS || EXEC_SCRIPTS */ #if defined(LYNXCGI_LINKS) && !defined(VMS) /* WebSter Mods -jkt */ char *LYCgiDocumentRoot = NULL; /* DOCUMENT_ROOT in the lynxcgi env */ #endif /* LYNXCGI_LINKS */ #ifdef TRACK_INTERNAL_LINKS BOOLEAN track_internal_links = TRUE; #else BOOLEAN track_internal_links = FALSE; #endif BOOLEAN enable_scrollback = FALSE; char empty_string[] = {'\0'}; int display_lines; /* number of lines in display */ int www_search_result = -1; /* linked list of printers */ lynx_list_item_type *printers = NULL; /* linked list of download options */ lynx_list_item_type *downloaders = NULL; /* linked list of upload options */ #ifdef USE_EXTERNALS lynx_list_item_type *externals = NULL; /* linked list of external options */ #endif lynx_list_item_type *uploaders = NULL; int LYShowColor = SHOW_COLOR_UNKNOWN; /* to show or not */ int LYrcShowColor = SHOW_COLOR_UNKNOWN; /* ... last used */ #if !defined(NO_OPTION_FORMS) && !defined(NO_OPTION_MENU) BOOLEAN LYUseFormsOptions = TRUE; /* use forms-based options menu */ #endif BOOLEAN LYGuessScheme = FALSE; BOOLEAN LYJumpFileURL = FALSE; /* always FALSE the first time */ BOOLEAN LYPermitURL = FALSE; BOOLEAN LYRestricted = FALSE; /* whether we have -anonymous option */ BOOLEAN LYShowCursor = SHOW_CURSOR; /* to show or not to show */ BOOLEAN LYUnderlineLinks = UNDERLINE_LINKS; /* Show the links underlined vs bold */ BOOLEAN LYUseDefShoCur = TRUE; /* Command line -show_cursor toggle */ BOOLEAN LYUserSpecifiedURL = TRUE; /* always TRUE the first time */ BOOLEAN LYValidate = FALSE; BOOLEAN LYforce_no_cache = FALSE; BOOLEAN LYinternal_flag = FALSE; /* override no-cache b/c internal link */ BOOLEAN LYoverride_no_cache = FALSE; /*override no-cache b/c history etc */ BOOLEAN LYresubmit_posts = ALWAYS_RESUBMIT_POSTS; BOOLEAN LYtrimBlankLines = TRUE; BOOLEAN LYtrimInputFields = FALSE; BOOLEAN LYxhtml_parsing = FALSE; BOOLEAN bold_H1 = FALSE; BOOLEAN bold_headers = FALSE; BOOLEAN bold_name_anchors = FALSE; BOOLEAN LYcase_sensitive = CASE_SENSITIVE_ALWAYS_ON; BOOLEAN check_mail = CHECKMAIL; BOOLEAN child_lynx = FALSE; BOOLEAN dump_links_decoded = TRUE; BOOLEAN dump_links_inline = FALSE; BOOLEAN dump_links_only = FALSE; BOOLEAN dump_output_immediately = FALSE; BOOLEAN dump_to_stderr = FALSE; BOOLEAN emacs_keys = EMACS_KEYS_ALWAYS_ON; BOOLEAN error_logging = MAIL_SYSTEM_ERROR_LOGGING; BOOLEAN goto_buffer = GOTOBUFFER; /* TRUE if offering default goto URL */ BOOLEAN historical_comments = FALSE; BOOLEAN html5_charsets = FALSE; BOOLEAN is_www_index = FALSE; BOOLEAN jump_buffer = JUMPBUFFER; /* TRUE if offering default shortcut */ BOOLEAN lynx_mode = NORMAL_LYNX_MODE; BOOLEAN minimal_comments = FALSE; BOOLEAN number_fields_on_left = TRUE; BOOLEAN number_links_on_left = TRUE; BOOLEAN recent_sizechange = FALSE; /* the window size changed recently? */ BOOLEAN soft_dquotes = FALSE; BOOLEAN unique_urls = FALSE; BOOLEAN use_underscore = SUBSTITUTE_UNDERSCORES; BOOLEAN verbose_img = VERBOSE_IMAGES; /* show filenames or not */ BOOLEAN vi_keys = VI_KEYS_ALWAYS_ON; int keypad_mode = DEFAULT_KEYPAD_MODE; int user_mode = NOVICE_MODE; BOOLEAN telnet_ok = TRUE; #ifndef DISABLE_NEWS BOOLEAN news_ok = TRUE; #endif BOOLEAN rlogin_ok = TRUE; BOOLEAN long_url_ok = FALSE; BOOLEAN ftp_ok = TRUE; BOOLEAN system_editor = FALSE; BOOLEAN had_restrictions_default = FALSE; BOOLEAN had_restrictions_all = FALSE; BOOLEAN exec_frozen = FALSE; BOOLEAN no_bookmark = FALSE; BOOLEAN no_bookmark_exec = FALSE; BOOLEAN no_chdir = FALSE; BOOLEAN no_disk_save = FALSE; BOOLEAN no_dotfiles = NO_DOT_FILES; BOOLEAN no_download = FALSE; BOOLEAN no_editor = FALSE; BOOLEAN no_exec = FALSE; BOOLEAN no_file_url = FALSE; BOOLEAN no_goto = FALSE; BOOLEAN no_goto_configinfo = FALSE; BOOLEAN no_goto_cso = FALSE; BOOLEAN no_goto_file = FALSE; BOOLEAN no_goto_finger = FALSE; BOOLEAN no_goto_ftp = FALSE; BOOLEAN no_goto_gopher = FALSE; BOOLEAN no_goto_http = FALSE; BOOLEAN no_goto_https = FALSE; BOOLEAN no_goto_lynxcgi = FALSE; BOOLEAN no_goto_lynxexec = FALSE; BOOLEAN no_goto_lynxprog = FALSE; BOOLEAN no_goto_mailto = FALSE; BOOLEAN no_goto_rlogin = FALSE; BOOLEAN no_goto_telnet = FALSE; BOOLEAN no_goto_tn3270 = FALSE; BOOLEAN no_goto_wais = FALSE; BOOLEAN no_inside_ftp = FALSE; BOOLEAN no_inside_rlogin = FALSE; BOOLEAN no_inside_telnet = FALSE; BOOLEAN no_jump = FALSE; BOOLEAN no_lynxcfg_info = FALSE; BOOLEAN no_lynxcgi = FALSE; BOOLEAN no_mail = FALSE; BOOLEAN no_multibook = FALSE; BOOLEAN no_option_save = FALSE; BOOLEAN no_outside_ftp = FALSE; BOOLEAN no_outside_rlogin = FALSE; BOOLEAN no_outside_telnet = FALSE; BOOLEAN no_print = FALSE; BOOLEAN no_shell = FALSE; BOOLEAN no_suspend = FALSE; BOOLEAN no_telnet_port = FALSE; BOOLEAN no_useragent = FALSE; #ifndef DISABLE_FTP BOOLEAN ftp_passive = FTP_PASSIVE; /* TRUE if doing ftp in passive mode */ BOOLEAN ftp_local_passive; HTList *broken_ftp_epsv = NULL; HTList *broken_ftp_retr = NULL; char *ftp_lasthost = NULL; #endif #ifndef DISABLE_NEWS BOOLEAN no_goto_news = FALSE; BOOLEAN no_goto_nntp = FALSE; BOOLEAN no_goto_snews = FALSE; BOOLEAN no_inside_news = FALSE; BOOLEAN no_newspost = FALSE; BOOLEAN no_outside_news = FALSE; #endif #ifdef USE_EXTERNALS BOOLEAN no_externals = FALSE; #endif #ifndef NO_CONFIG_INFO BOOLEAN no_lynxcfg_xinfo = FALSE; #ifdef HAVE_CONFIG_H BOOLEAN no_compileopts_info = FALSE; #endif #endif BOOLEAN no_statusline = FALSE; BOOLEAN no_filereferer = TRUE; char LYRefererWithQuery = 'D'; /* 'D' for drop */ BOOLEAN local_host_only = FALSE; BOOLEAN override_no_download = FALSE; BOOLEAN show_dotfiles = FALSE; /* From rcfile if no_dotfiles is false */ BOOLEAN LYforce_HTML_mode = FALSE; BOOLEAN LYfind_leaks = TRUE; #ifdef __DJGPP__ BOOLEAN watt_debug = FALSE; /* WATT-32 debugging */ BOOLEAN dj_is_bash = FALSE; /* Check for bash shell under DJGPP */ #endif /* __DJGPP__ */ #ifdef WIN_EX BOOLEAN focus_window = FALSE; /* 1998/10/05 (Mon) 17:18:42 */ char windows_drive[4]; /* 1998/01/13 (Tue) 21:13:24 */ #endif #ifdef _WINDOWS #define TIMEOUT 180 /* 1998/03/30 (Mon) 14:50:44 */ int lynx_timeout = TIMEOUT; CRITICAL_SECTION critSec_READ; /* 1998/09/03 (Thu) 22:01:56 */ #endif /* _WINDOWS */ #if defined(WIN_EX) BOOLEAN system_is_NT = FALSE; #endif BOOLEAN show_cfg = FALSE; BOOLEAN no_table_center = FALSE; /* 1998/10/09 (Fri) 15:12:49 */ #if USE_BLAT_MAILER BOOLEAN mail_is_blat = TRUE; BOOLEAN mail_is_altblat = USE_ALT_BLAT_MAILER; #if USE_ALT_BLAT_MAILER #define THIS_BLAT_MAIL ALTBLAT_MAIL #define THAT_BLAT_MAIL BLAT_MAIL #else #define THIS_BLAT_MAIL BLAT_MAIL #define THAT_BLAT_MAIL ALTBLAT_MAIL #endif #endif #ifdef USE_BLINK # ifdef __EMX__ BOOLEAN term_blink_is_boldbg = TRUE; # else BOOLEAN term_blink_is_boldbg = FALSE; # endif #endif BOOLEAN HEAD_request = FALSE; BOOLEAN LYAcceptAllCookies = ACCEPT_ALL_COOKIES; /* take all cookies? */ BOOLEAN LYCancelledFetch = FALSE; /* TRUE if cancelled binary fetch */ BOOLEAN LYCollapseBRs = COLLAPSE_BR_TAGS; /* Collapse serial BRs? */ BOOLEAN LYDefaultRawMode; BOOLEAN LYListNewsDates = LIST_NEWS_DATES; BOOLEAN LYListNewsNumbers = LIST_NEWS_NUMBERS; BOOLEAN LYMBMBlocked = BLOCK_MULTI_BOOKMARKS; BOOLEAN LYNewsPosting = NEWS_POSTING; /* News posting supported? */ BOOLEAN LYNoFromHeader = TRUE; /* Never send From header? */ BOOLEAN LYNoRefererForThis = FALSE; /* No Referer header for this URL? */ BOOLEAN LYNoRefererHeader = FALSE; /* Never send Referer header? */ BOOLEAN LYRawMode; BOOLEAN LYSelectPopups = USE_SELECT_POPUPS; BOOLEAN LYSendUserAgent = SEND_USERAGENT; /* send Lynx User-Agent header? */ BOOLEAN LYSetCookies = SET_COOKIES; /* Process Set-Cookie headers? */ BOOLEAN LYUseDefSelPop = TRUE; /* Command line -popup toggle */ BOOLEAN LYUseDefaultRawMode = TRUE; BOOLEAN LYUseMouse = FALSE; BOOLEAN LYisConfiguredForX = FALSE; BOOLEAN UCForce8bitTOUPPER = FALSE; /* override locale for case-conversion? */ BOOLEAN UCSaveBookmarksInUnicode = FALSE; BOOLEAN bookmark_start = FALSE; BOOLEAN check_realm = FALSE; /* Restrict to the starting realm? */ BOOLEAN clickable_images = MAKE_LINKS_FOR_ALL_IMAGES; BOOLEAN crawl = FALSE; /* Do crawl? */ BOOLEAN keep_mime_headers = FALSE; /* Include mime headers with source dump */ BOOLEAN more_text = FALSE; /* is there more text to display? */ BOOLEAN more_links = FALSE; /* Links beyond a displayed page with no links? */ BOOLEAN no_list = FALSE; BOOLEAN no_margins = FALSE; BOOLEAN no_pause = FALSE; BOOLEAN no_title = FALSE; BOOLEAN update_term_title = FALSE; BOOLEAN no_url_redirection = FALSE; /* Don't follow URL redirections */ BOOLEAN pseudo_inline_alts = MAKE_PSEUDO_ALTS_FOR_INLINES; BOOLEAN scan_for_buried_news_references = TRUE; BOOLEAN startfile_ok = FALSE; static BOOLEAN startfile_stdin = FALSE; BOOLEAN traversal = FALSE; /* Do traversals? */ char *BookmarkPage = NULL; /* the name of the current bookmark page */ char *LYCookieAcceptDomains = NULL; /* domains to accept all cookies */ char *LYCookieLooseCheckDomains = NULL; /* check loosely */ char *LYCookieQueryCheckDomains = NULL; /* check w/a query */ char *LYCookieRejectDomains = NULL; /* domains to reject all cookies */ char *LYCookieSAcceptDomains = NULL; /* domains to accept all cookies */ char *LYCookieSLooseCheckDomains = NULL; /* check loosely */ char *LYCookieSQueryCheckDomains = NULL; /* check w/a query */ char *LYCookieSRejectDomains = NULL; /* domains to reject all cookies */ char *LYCookieSStrictCheckDomains = NULL; /* check strictly */ char *LYCookieStrictCheckDomains = NULL; /* check strictly */ char *LYHostName = NULL; /* treat as a local host name */ char *LYLocalDomain = NULL; /* treat as a local domain tail */ char *LYUserAgent = NULL; /* Lynx User-Agent header */ char *LYUserAgentDefault = NULL; /* Lynx default User-Agent header */ char *LynxHome = NULL; /* the default Home HREF. */ char *LynxSigFile = NULL; /* Signature file, in or off home */ char *UCAssume_MIMEcharset = NULL; char *URLDomainPrefixes = NULL; char *URLDomainSuffixes = NULL; char *anonftp_password = NULL; /* anonymous ftp password (default: email) */ char *authentication_info[2] = {NULL, NULL}; /* Id:Password for protected documents */ char *bookmark_page = NULL; /* the name of the default bookmark page */ char *editor = NULL; /* the name of the current editor */ char *form_get_data = NULL; /* User data for get form */ char *form_post_data = NULL; /* User data for post form */ char *global_extension_map = NULL; /* global mime.types */ char *global_type_map = NULL; /* global mailcap */ char *helpfile = NULL; /* the main help file */ char *helpfilepath = NULL; /* the path to the help file set */ char *homepage = NULL; /* home page or main screen */ char *http_error_file = NULL; /* Place HTTP status code in this file */ char *indexfile = NULL; /* an index file if there is one */ char *jumpfile = NULL; /* the name of the default jumps file */ char *jumpprompt = NULL; /* the default jumps prompt */ char *language = NULL; /* preferred language */ char *lynx_cfg_file = NULL; /* location of active lynx.cfg */ char *lynx_cmd_logfile; /* file to write keystroke commands, if any */ char *lynx_cmd_script; /* file to read keystroke commands, if any */ char *lynx_save_space = NULL; /* The prefix for save to disk paths */ char *lynx_temp_space = NULL; /* The prefix for temporary file paths */ char *lynxjumpfile = NULL; /* the current jump file URL */ char *lynxlinksfile = NULL; /* the current visited links file URL */ char *lynxlistfile = NULL; /* the current list file URL */ char *original_dir = NULL; /* the original directory */ char *personal_extension_map = NULL; /* .mime.types */ char *personal_mail_address = NULL; /* the user's mail address */ char *personal_mail_name = NULL; /* the user's personal name mail */ char *personal_type_map = NULL; /* .mailcap */ char *pref_charset = NULL; /* preferred character set */ char *proxyauth_info[2] = {NULL, NULL}; /* Id:Password for protected proxy servers */ #ifdef USE_SESSIONS BOOLEAN LYAutoSession = FALSE; /* enable/disable auto saving/restoring of */ /* session */ char *LYSessionFile = NULL; /* the session file from lynx.cfg */ char *session_file = NULL; /* the current session file */ char *sessionin_file = NULL; /* only resume session from this file */ char *sessionout_file = NULL; /* only save session to this file */ short session_limit = 250; /* maximal number of entries saved per */ /* session file, rest will be ignored */ #endif /* USE_SESSIONS */ char *startfile = NULL; /* the first file */ char *startrealm = NULL; /* the startfile realm */ char *system_mail = NULL; /* The path for sending mail */ char *system_mail_flags = NULL; /* Flags for sending mail */ char *x_display = NULL; /* display environment variable */ HistInfo *history; int nhist = 0; /* number of used history entries */ int size_history; /* number of allocated history entries */ LinkInfo links[MAXLINKS]; BOOLEAN nomore = FALSE; /* display -more- string in statusline messages */ int AlertSecs; /* time-delay for HTAlert() messages */ int DelaySecs; /* time-delay for HTProgress messages */ int InfoSecs; /* time-delay for Information messages */ int LYMultiBookmarks = MULTI_BOOKMARK_SUPPORT; int LYStatusLine = -1; /* Line for statusline() if > -1 */ int LYcols = DFT_COLS; int LYlines = DFT_ROWS; int MessageSecs; /* time-delay for important Messages */ int ReplaySecs; /* time-delay for command-scripts */ int crawl_count = 0; /* Starting number for lnk#.dat files in crawls */ int dump_output_width = 0; int dump_server_status = 0; int lynx_temp_subspace = 0; /* > 0 if we made temp-directory */ int max_cookies_domain = 50; int max_cookies_global = 500; int max_cookies_buffer = 4096; int max_uri_size = 8192; int nlinks = 0; /* number of links in memory */ int outgoing_mail_charset = -1; /* translate mail to this charset */ #ifndef DISABLE_BIBP BOOLEAN BibP_bibhost_available = FALSE; /* until check succeeds */ BOOLEAN BibP_bibhost_checked = FALSE; /* until LYCheckBibHost */ BOOLEAN no_goto_bibp = FALSE; char *BibP_bibhost = NULL; /* local server for bibp: links */ char *BibP_globalserver = NULL; /* global server for bibp: links */ #endif #ifdef USE_PERSISTENT_COOKIES BOOLEAN persistent_cookies = FALSE; /* disabled by default! */ char *LYCookieFile = NULL; /* cookie read file */ char *LYCookieSaveFile = NULL; /* cookie save file */ #endif /* USE_PERSISTENT_COOKIES */ #ifdef EXP_NESTED_TABLES BOOLEAN nested_tables = #if defined(USE_COLOR_STYLE) TRUE #else FALSE /* see 2001-08-15 */ #endif ; #endif BOOLEAN LYShowTransferRate = TRUE; int LYTransferRate = rateKB; int LYAcceptEncoding = encodingALL; int LYAcceptMedia = mediaOpt1; int LYContentType = contentTEXT; const char *ContentTypes[] = { STR_BINARY, STR_PLAINTEXT, STR_HTML }; char *LYTransferName = NULL; char *XLoadImageCommand = NULL; /* Default image viewer for X */ BOOLEAN LYNoISMAPifUSEMAP = FALSE; /* Omit ISMAP link if MAP present? */ int LYHiddenLinks = HIDDENLINKS_SEPARATE; /* Show hidden links? */ char *SSL_cert_file = NULL; /* Default CA CERT file */ char *SSL_client_cert_file = NULL; char *SSL_client_key_file = NULL; int HTprotocolLevel = HTTP_1_0; int Old_DTD = NO; static BOOLEAN DTD_recovery = NO; #ifndef NO_LYNX_TRACE FILE *LYTraceLogFP = NULL; /* Pointer for TRACE log */ #endif char *LYTraceLogPath = NULL; /* Path for TRACE log */ BOOLEAN LYUseTraceLog = USE_TRACE_LOG; /* Use a TRACE log? */ #ifdef LY_FIND_LEAKS char LYLeaksPath[LY_MAXPATH]; #endif BOOLEAN LYSeekFragMAPinCur = TRUE; BOOLEAN LYSeekFragAREAinCur = TRUE; BOOLEAN LYStripDotDotURLs = TRUE; /* Try to fix ../ in some URLs? */ BOOLEAN LYForceSSLCookiesSecure = FALSE; BOOLEAN LYNoCc = FALSE; BOOLEAN LYPreparsedSource = FALSE; /* Show source as preparsed? */ BOOLEAN LYPrependBaseToSource = TRUE; BOOLEAN LYPrependCharsetToSource = TRUE; BOOLEAN LYQuitDefaultYes = QUIT_DEFAULT_YES; BOOLEAN dont_wrap_pre = FALSE; int cookie_noprompt; int cookie_version = COOKIES_RFC_6265; #ifdef USE_SSL int ssl_noprompt = FORCE_PROMPT_DFT; #endif BOOLEAN conv_jisx0201kana = TRUE; BOOLEAN wait_viewer_termination = FALSE; int connect_timeout = 18000; /*=180000*0.1 - used in HTDoConnect.*/ int reading_timeout = 18000; /*=180000*0.1 - used in HTDoConnect.*/ #ifdef USE_JUSTIFY_ELTS BOOLEAN ok_justify = FALSE; int justify_max_void_percent = 35; #endif #ifdef USE_LOCALE_CHARSET BOOLEAN LYLocaleCharset = FALSE; #endif BOOLEAN assumed_charset = FALSE; #ifndef NO_DUMP_WITH_BACKSPACES BOOLEAN with_backspaces = FALSE; #endif #if defined(PDCURSES) && defined(PDC_BUILD) && PDC_BUILD >= 2401 int scrsize_x = 0; int scrsize_y = 0; #endif BOOLEAN force_empty_hrefless_a = FALSE; #ifdef TEXTFIELDS_MAY_NEED_ACTIVATION BOOL textfields_need_activation = FALSE; BOOLEAN textfields_activation_option = FALSE; #endif BOOLEAN textfield_prompt_at_left_edge = FALSE; #ifdef MARK_HIDDEN_LINKS char *hidden_link_marker = NULL; #endif #ifdef DISP_PARTIAL BOOLEAN display_partial_flag = TRUE; /* Display document during download */ BOOLEAN debug_display_partial = FALSE; /* Show with MessageSecs delay */ int partial_threshold = -1; /* # of lines to be d/l'ed until we repaint */ #endif char *socks5_proxy = NULL; BOOLEAN LYNonRestartingSIGWINCH = FALSE; BOOLEAN LYReuseTempfiles = FALSE; BOOLEAN LYUseBuiltinSuffixes = TRUE; int LYNoZapKey = 0; /* 0: off (do z checking), 1: full, 2: initially */ #ifndef DISABLE_NEWS #include #endif BOOLEAN FileInitAlreadyDone = FALSE; #ifdef USE_PROGRAM_DIR char *program_dir = NULL; #endif static BOOLEAN stack_dump = FALSE; static char *terminal = NULL; static const char *pgm; static BOOLEAN no_numbers = FALSE; static BOOLEAN number_links = FALSE; static BOOLEAN number_fields = FALSE; static BOOLEAN LYPrependBase = FALSE; static HTList *LYStdinArgs = NULL; HTList *positionable_editor = NULL; #ifndef EXTENDED_OPTION_LOGIC /* if set then '--' will be recognized as the end of options */ #define EXTENDED_OPTION_LOGIC 1 #endif #ifndef EXTENDED_STARTFILE_RECALL /* if set then additional non-option args (before the last one) will be made available for 'g'oto recall - kw */ #define EXTENDED_STARTFILE_RECALL 1 #endif #if EXTENDED_STARTFILE_RECALL static char *nonoption = 0; #endif #ifndef OPTNAME_ALLOW_DASHES /* if set, then will allow dashes and underscores to be used interchangeable in commandline option's names - VH */ #define OPTNAME_ALLOW_DASHES 1 #endif static BOOL parse_arg(char **arg, unsigned mask, int *countp); static void print_help_and_exit(int exit_status) GCC_NORETURN; static void print_help_strings(const char *name, const char *help, const char *value, int option); #ifndef VMS BOOLEAN LYNoCore = NO_FORCED_CORE_DUMP; BOOLEAN restore_sigpipe_for_children = FALSE; static void FatalProblem(int sig); #endif /* !VMS */ #if defined(USE_COLOR_STYLE) int LYuse_color_style = TRUE; char *lynx_lss_file = NULL; /* from config-file, etc. */ static char *lynx_lss_file2 = NULL; /* from command-line options */ const char *default_color_styles = "\ lynx.lss;\ blue-background.lss;\ bright-blue.lss;\ midnight.lss;\ mild-colors.lss;\ opaque.lss\ "; #endif #ifdef USE_DEFAULT_COLORS BOOLEAN LYuse_default_colors = TRUE; #endif #ifdef __DJGPP__ static void LY_set_ctrl_break(int setting) { (void) signal(SIGINT, (setting ? SIG_DFL : SIG_IGN)); setcbrk(setting); } static int LY_get_ctrl_break(void) { __dpmi_regs regs; regs.h.ah = 0x33; regs.h.al = 0x00; __dpmi_int(0x21, ®s); return ((int) regs.h.dl); } static void reset_break(void) { LY_set_ctrl_break(init_ctrl_break[0]); } #endif /* __DJGPP__ */ #if defined(WIN_EX) static int is_windows_nt(void) { DWORD version; version = GetVersion(); if ((version & 0x80000000) == 0) return 1; else return 0; } #endif #ifdef LY_FIND_LEAKS static void free_lynx_globals(void) { int i; #if defined(USE_COLOR_STYLE) clear_lss_list(); #endif FREE(ftp_format); #ifndef VMS FREE(list_format); #ifdef LYNXCGI_LINKS /* WebSter Mods -jkt */ FREE(LYCgiDocumentRoot); #endif /* LYNXCGI_LINKS */ free_lynx_cfg(); #endif /* !VMS */ #ifdef SYSLOG_REQUESTED_URLS FREE(syslog_txt); #endif #ifdef VMS Define_VMSLogical("LYNX_VERSION", ""); #else (void) putenv("LYNX_VERSION=" LYNX_VERSION); #endif /* VMS */ #ifndef VMS FREE(lynx_version_putenv_command); #endif #if USE_VMS_MAILER FREE(mail_adrs); #endif FREE(LynxHome); FREE(history); FREE(homepage); FREE(original_dir); FREE(startfile); FREE(helpfile); FREE(helpfilepath); FREE(jumpprompt); #ifdef JUMPFILE FREE(jumpfile); #endif /* JUMPFILE */ FREE(indexfile); FREE(x_display); FREE(global_type_map); FREE(personal_type_map); FREE(global_extension_map); FREE(personal_extension_map); FREE(language); FREE(pref_charset); FREE(LynxSigFile); FREE(system_mail); FREE(system_mail_flags); #ifndef DISABLE_BIBP FREE(BibP_bibhost); FREE(BibP_globalserver); #endif #ifdef USE_PERSISTENT_COOKIES FREE(LYCookieFile); FREE(LYCookieSaveFile); #endif FREE(LYCookieAcceptDomains); FREE(LYCookieRejectDomains); FREE(LYCookieLooseCheckDomains); FREE(LYCookieStrictCheckDomains); FREE(LYCookieQueryCheckDomains); FREE(LYUserAgent); FREE(LYUserAgentDefault); FREE(LYHostName); FREE(LYLocalDomain); FREE(lynx_save_space); FREE(bookmark_page); FREE(BookmarkPage); for (i = 0; i <= MBM_V_MAXFILES; i++) { FREE(MBM_A_subbookmark[i]); FREE(MBM_A_subdescript[i]); } FREE(editor); FREE(authentication_info[0]); FREE(authentication_info[1]); FREE(proxyauth_info[0]); FREE(proxyauth_info[1]); FREE(lynxjumpfile); #ifndef DISABLE_FTP FREE(ftp_lasthost); LYFreeStringList(broken_ftp_epsv); LYFreeStringList(broken_ftp_retr); #endif FREE(startrealm); FREE(personal_mail_address); FREE(personal_mail_name); FREE(anonftp_password); FREE(URLDomainPrefixes); FREE(URLDomainSuffixes); FREE(XLoadImageCommand); FREE(lynx_temp_space); FREE(LYTransferName); FREE(LYTraceLogPath); FREE(lynx_cfg_file); FREE(SSL_cert_file); FREE(SSL_client_cert_file); FREE(SSL_client_key_file); #if defined(USE_COLOR_STYLE) FREE(lynx_lss_file2); FREE(lynx_lss_file); #endif FREE(UCAssume_MIMEcharset); LYUIPages_free(); LYFreeHilites(0, nlinks); nlinks = 0; LYFreeStringList(LYcommandList()); HTInitProgramPaths(FALSE); #if EXTENDED_STARTFILE_RECALL FREE(nonoption); #endif LYFreeStringList(positionable_editor); return; } #endif /* LY_FIND_LEAKS */ /* * This function frees the LYStdinArgs list. - FM */ static void LYStdinArgs_free(void) { LYFreeStringList(LYStdinArgs); LYStdinArgs = NULL; } void reset_signals(void) { #ifndef NOSIGHUP (void) signal(SIGHUP, SIG_DFL); #endif /* NOSIGHUP */ (void) signal(SIGTERM, SIG_DFL); #ifndef VMS (void) signal(SIGINT, SIG_DFL); #endif /* !VMS */ #ifdef SIGTSTP if (no_suspend) (void) signal(SIGTSTP, SIG_DFL); #endif /* SIGTSTP */ } void exit_immediately(int code) { reset_signals(); exit(code); } #ifdef EBCDIC static void FixCharacters(void) { int c; int work1[256], work2[256]; for (c = 0; c < 256; c++) { work1[c] = keymap[c + 1]; work2[c] = key_override[c + 1]; } for (c = 0; c < 256; c++) { keymap[IBM1047[c] + 1] = work1[c]; key_override[IBM1047[c] + 1] = work2[c]; } } #endif /* EBCDIC */ static BOOL GetStdin(char **buf, int marker) { if (LYSafeGets(buf, stdin) != 0 && (!marker || StrNCmp(*buf, "---", 3) != 0)) { LYTrimTrailing(*buf); CTRACE((tfp, "...data: %s\n", *buf)); return TRUE; } CTRACE((tfp, "...mark: %s\n", *buf ? *buf : "")); return FALSE; } #ifdef WIN32 static BOOL cleanup_win32(DWORD fdwCtrlType) { switch (fdwCtrlType) { case CTRL_CLOSE_EVENT: cleanup_sig(-1); return TRUE; default: return FALSE; } } #endif /* * Append the SSL version to lynx version or user-agent string. */ #ifdef USE_SSL static void append_ssl_version(char **target, const char *separator) { char SSLLibraryVersion[256]; char *SSLcp; HTSprintf(target, " SSL-MM%s1.4.1", separator); #undef LYNX_SSL_VERSION #if defined(SSLEAY_VERSION) #define LYNX_SSL_VERSION SSLeay_version(SSLEAY_VERSION) #elif defined(OPENSSL_VERSION_TEXT) #define LYNX_SSL_VERSION OPENSSL_VERSION_TEXT #elif defined(GNUTLS_VERSION) #define LYNX_SSL_VERSION "GNUTLS " GNUTLS_VERSION " " #endif #ifdef LYNX_SSL_VERSION if (*separator == ' ') StrAllocCat(*target, ","); LYStrNCpy(SSLLibraryVersion, LYNX_SSL_VERSION, sizeof(SSLLibraryVersion) - 1); if ((SSLcp = StrChr(SSLLibraryVersion, ' ')) != NULL) { *SSLcp++ = *separator; if ((SSLcp = StrChr(SSLcp, ' ')) != NULL) { *SSLcp = '\0'; StrAllocCat(*target, " "); StrAllocCat(*target, SSLLibraryVersion); } } #endif /* LYNX_SSL_VERSION */ } #endif /* USE_SSL */ /* Set the text message domain. */ void LYSetTextDomain(void) { #if defined(HAVE_LIBINTL_H) || defined(HAVE_LIBGETTEXT_H) const char *cp; if ((cp = LYGetEnv("LYNX_LOCALEDIR")) == 0) { #ifdef USE_PROGRAM_DIR char *localedir = NULL; HTSprintf0(&localedir, "%s\\locale", program_dir); cp = localedir; #else cp = LOCALEDIR; #endif } bindtextdomain(NLS_TEXTDOMAIN, cp); textdomain(NLS_TEXTDOMAIN); #endif } static void SetLocale(void) { #ifdef LOCALE /* * LOCALE support for international characters. */ setlocale(LC_ALL, ""); #endif /* LOCALE */ LYSetTextDomain(); } /* * Wow! Someone wants to start up Lynx. */ int main(int argc, char **argv) { int i; /* indexing variable */ int status = 0; /* exit status */ char *temp = NULL; const char *ccp; char *cp; FILE *fp; struct stat dir_info; char filename[LY_MAXPATH]; BOOL LYGetStdinArgs = FALSE; #ifdef _WINDOWS WSADATA WSAData; #endif /* _WINDOWS */ /* * Just in case someone has the idea to install lynx set-uid, let's try * to discourage it. */ #if defined(GETUID) && defined(SETUID) setuid(getuid()); #endif #ifdef LY_FIND_LEAKS /* * Register the final function to be executed when being exited. Will * display memory leaks if the -find-leaks option is used. This should * be the first call to atexit() for leak-checking, which ensures that * all of the other functions will be invoked before LYLeaks(). */ atexit(LYLeaks); /* * Register the function which will free our allocated globals. */ atexit(free_lynx_globals); LYAddPathToHome(LYLeaksPath, (size_t) LY_MAXPATH, LEAKAGE_SINK); #endif /* LY_FIND_LEAKS */ #ifdef NOT_ASCII FixCharacters(); #endif /* NOT_ASCII */ #ifndef DISABLE_FTP /* malloc a sizeof(char) so 1st strcmp() won't dump in HTLoadFile() */ ftp_lasthost = typecalloc(char); #endif LYinitEditmap(); LYinitKeymap(); #ifdef USE_CHARSET_CHOICE memset((char *) charset_subsets, 0, sizeof(charset_subset_t) * MAXCHARSETS); #endif #ifdef _WINDOWS { int err; WORD wVerReq; wVerReq = MAKEWORD(1, 1); err = WSAStartup(wVerReq, &WSAData); if (err != 0) { puts(gettext("No Winsock found, sorry.")); sleep(5); return 1; } } /* 1998/09/03 (Thu) 22:02:32 */ InitializeCriticalSection(&critSec_READ); #endif /* _WINDOWS */ #if defined(WIN_EX) /* 1997/10/19 (Sun) 21:40:54 */ system_is_NT = (BOOL) is_windows_nt(); /* 1998/01/13 (Tue) 21:13:47 */ GetWindowsDirectory(filename, sizeof filename); windows_drive[0] = filename[0]; windows_drive[1] = filename[1]; windows_drive[2] = '\0'; #endif #ifdef __DJGPP__ if (LY_get_ctrl_break() == 0) { LY_set_ctrl_break(TRUE); init_ctrl_break[0] = 0; } else { init_ctrl_break[0] = 1; } __djgpp_set_sigquit_key(0x082D); /* Bind ALT-X to SIGQUIT */ signal(SIGQUIT, cleanup_sig); atexit(reset_break); if (((ccp = LYGetEnv("SHELL")) != NULL) && (strstr(LYPathLeaf(ccp), "sh") != NULL)) dj_is_bash = TRUE; #endif /* __DJGPP__ */ /* * To prevent corrupting binary data on DOS, MS-WINDOWS or OS/2 * we open files and stdout in BINARY mode by default. * Where necessary we should open and (close!) TEXT mode. * (use LYNewTxtFile/LYAppendToTxtFile to open text files for writing) */ SetDefaultMode(O_BINARY); SetOutputMode(O_BINARY); #ifdef DOSPATH if (LYGetEnv("TERM") == NULL) putenv("TERM=vt100"); #endif LYShowColor = (SHOW_COLOR ? SHOW_COLOR_ON : SHOW_COLOR_OFF); /* * Set up the argument list. */ pgm = argv[0]; cp = NULL; #ifdef USE_PROGRAM_DIR StrAllocCopy(program_dir, pgm); if ((cp = strrchr(program_dir, '\\')) != NULL) { *cp = '\0'; } else { FREE(program_dir); StrAllocCopy(program_dir, "."); } #endif if ((cp = LYLastPathSep(pgm)) != NULL) { pgm = cp + 1; } /* * Set up trace, the anonymous account defaults, validate restrictions, * and/or the nosocks flag, if requested, and an alternate configuration * file, if specified, NOW. Also, if we only want the help menu, output * that and exit. - FM */ #ifndef NO_LYNX_TRACE if (LYGetEnv("LYNX_TRACE") != 0) { WWW_TraceFlag = TRUE; } #endif /* * Set up the TRACE log path, and logging if appropriate. - FM */ if ((ccp = LYGetEnv("LYNX_TRACE_FILE")) == 0) ccp = FNAME_LYNX_TRACE; LYTraceLogPath = typeMallocn(char, LY_MAXPATH); LYAddPathToHome(LYTraceLogPath, (size_t) LY_MAXPATH, ccp); /* * Act on -version, -trace and -trace-mask NOW. */ for (i = 1; i < argc; i++) { parse_arg(&argv[i], 1, &i); } LYOpenTraceLog(); SetLocale(); /* * Initialize our startup and global variables. */ #ifdef ULTRIX /* * Need this for Ultrix. */ terminal = LYGetEnv("TERM"); if ((terminal == NULL) || !strncasecomp(terminal, "xterm", 5)) terminal = "vt100"; #endif /* ULTRIX */ /* * Zero the links and history struct arrays. */ memset((void *) links, 0, sizeof(LinkInfo) * MAXLINKS); LYAllocHistory(8); /* * Zero the MultiBookmark arrays. */ memset((void *) MBM_A_subbookmark, 0, sizeof(char *) * (MBM_V_MAXFILES + 1)); memset((void *) MBM_A_subdescript, 0, sizeof(char *) * (MBM_V_MAXFILES + 1)); #ifndef VMS StrAllocCopy(list_format, LIST_FORMAT); StrAllocCopy(ftp_format, FTP_FORMAT); #endif /* !VMS */ AlertSecs = SECS2Secs(ALERTSECS); DelaySecs = SECS2Secs(DEBUGSECS); InfoSecs = SECS2Secs(INFOSECS); MessageSecs = SECS2Secs(MESSAGESECS); ReplaySecs = SECS2Secs(REPLAYSECS); StrAllocCopy(LYTransferName, "KiB"); StrAllocCopy(helpfile, HELPFILE); StrAllocCopy(startfile, STARTFILE); LYEscapeStartfile(&startfile); StrAllocCopy(indexfile, DEFAULT_INDEX_FILE); StrAllocCopy(global_type_map, GLOBAL_MAILCAP); StrAllocCopy(personal_type_map, PERSONAL_MAILCAP); StrAllocCopy(global_extension_map, GLOBAL_EXTENSION_MAP); StrAllocCopy(personal_extension_map, PERSONAL_EXTENSION_MAP); StrAllocCopy(language, PREFERRED_LANGUAGE); StrAllocCopy(pref_charset, PREFERRED_CHARSET); StrAllocCopy(system_mail, SYSTEM_MAIL); StrAllocCopy(system_mail_flags, SYSTEM_MAIL_FLAGS); StrAllocCopy(LYUserAgent, LYNX_NAME); StrAllocCat(LYUserAgent, "/"); StrAllocCat(LYUserAgent, LYNX_VERSION); if (HTLibraryVersion) { StrAllocCat(LYUserAgent, " libwww-FM/"); StrAllocCat(LYUserAgent, HTLibraryVersion); } #ifdef USE_SSL append_ssl_version(&LYUserAgent, "/"); #endif /* USE_SSL */ StrAllocCopy(LYUserAgentDefault, LYUserAgent); #ifdef VMS Define_VMSLogical("LYNX_VERSION", LYNX_VERSION); #else StrAllocCopy(lynx_version_putenv_command, "LYNX_VERSION="); StrAllocCat(lynx_version_putenv_command, LYNX_VERSION); (void) putenv(lynx_version_putenv_command); /* Note: you must not free the data passed to 'putenv()' until you give it * a new value for that variable. */ #endif /* VMS */ if ((ccp = LYGetEnv("LYNX_TEMP_SPACE")) != NULL) StrAllocCopy(lynx_temp_space, ccp); #if defined (UNIX) || defined (__DJGPP__) else if ((ccp = LYGetEnv("TMPDIR")) != NULL) StrAllocCopy(lynx_temp_space, ccp); #endif #if defined (DOSPATH) || defined (__EMX__) else if ((ccp = LYGetEnv("TEMP")) != NULL) StrAllocCopy(lynx_temp_space, ccp); else if ((ccp = LYGetEnv("TMP")) != NULL) StrAllocCopy(lynx_temp_space, ccp); #endif else { #if defined(USE_PROGRAM_DIR) StrAllocCopy(lynx_temp_space, program_dir); #elif defined(TEMP_SPACE) StrAllocCopy(lynx_temp_space, TEMP_SPACE); #else puts(gettext("You MUST define a valid TMP or TEMP area!")); exit_immediately(EXIT_FAILURE); #endif } #ifdef WIN_EX /* for Windows 2000 ... 1999/08/23 (Mon) 08:24:35 */ if (access(lynx_temp_space, 0) != 0) #endif LYTildeExpand(&lynx_temp_space, TRUE); if ((cp = strstr(lynx_temp_space, "$USER")) != NULL) { char *cp1; if ((cp1 = LYGetEnv("USER")) != NULL) { *cp = '\0'; StrAllocCopy(temp, lynx_temp_space); *cp = '$'; StrAllocCat(temp, cp1); cp += 5; StrAllocCat(temp, cp); StrAllocCopy(lynx_temp_space, temp); FREE(temp); } } #ifdef VMS LYLowerCase(lynx_temp_space); if (StrChr(lynx_temp_space, '/') != NULL) { if (strlen(lynx_temp_space) == 1) { StrAllocCopy(lynx_temp_space, "sys$scratch:"); } else { LYAddPathSep(&lynx_temp_space); StrAllocCopy(temp, HTVMS_name("", lynx_temp_space)); StrAllocCopy(lynx_temp_space, temp); FREE(temp); } } if (StrChr(lynx_temp_space, ':') == NULL && StrChr(lynx_temp_space, ']') == NULL) { StrAllocCat(lynx_temp_space, ":"); } #else LYAddPathSep(&lynx_temp_space); StrAllocCopy(lynx_temp_space, HTSYS_name(lynx_temp_space)); #endif /* VMS */ if ((HTStat(lynx_temp_space, &dir_info) < 0 #if defined(MULTI_USER_UNIX) && mkdir(lynx_temp_space, 0700) < 0 #endif ) || !S_ISDIR(dir_info.st_mode)) { fprintf(stderr, "%s: %s\n", lynx_temp_space, gettext("No such directory")); exit_immediately(EXIT_FAILURE); } #if USE_VMS_MAILER #ifndef MAIL_ADRS #define MAIL_ADRS "\"IN%%\"\"%s\"\"\"" #endif StrAllocCopy(mail_adrs, MAIL_ADRS); #endif #ifdef LYNX_HOST_NAME StrAllocCopy(LYHostName, LYNX_HOST_NAME); #else StrAllocCopy(LYHostName, HTHostName()); #endif /* LYNX_HOST_NAME */ StrAllocCopy(LYLocalDomain, LOCAL_DOMAIN); StrAllocCopy(URLDomainPrefixes, URL_DOMAIN_PREFIXES); StrAllocCopy(URLDomainSuffixes, URL_DOMAIN_SUFFIXES); StrAllocCopy(XLoadImageCommand, XLOADIMAGE_COMMAND); StrAllocCopy(SSL_cert_file, SSL_CERT_FILE); #ifndef DISABLE_BIBP StrAllocCopy(BibP_globalserver, BIBP_GLOBAL_SERVER); StrAllocCopy(BibP_bibhost, "http://bibhost/"); /* protocol specified. */ #endif /* * Disable news posting if the compilation-based LYNewsPosting value is * FALSE. This may be changed further down via lynx.cfg or the * -restriction command line switch. - FM */ #ifndef DISABLE_NEWS no_newspost = (BOOL) (LYNewsPosting == FALSE); #endif for (i = 1; i < argc; i++) { parse_arg(&argv[i], 2, &i); } /* * If we have a lone "-" switch for getting arguments from stdin, get them * NOW, and act on the relevant ones, saving the others into an HTList for * handling after the other initializations. The primary purpose of this * feature is to allow for the potentially very long command line that can * be associated with post or get data. The original implementation * required that the lone "-" be the only command line argument, but that * precluded its use when the lynx command is aliased with other arguments. * When interactive, the stdin input is terminated by by Control-D on Unix * or Control-Z on VMS, and each argument is terminated by a RETURN. When * the argument is -get_data or -post_data, the data are terminated by a * "---" string, alone on the line (also terminated by RETURN). - FM */ for (i = 1; i < argc; i++) { if (strcmp(argv[i], "-") == 0) { LYGetStdinArgs = TRUE; break; } } if (LYGetStdinArgs == TRUE) { char *buf = NULL; CTRACE((tfp, "processing stdin arguments\n")); while (GetStdin(&buf, TRUE)) { char *noargv[2]; noargv[0] = buf; noargv[1] = NULL; LYTrimTrailing(buf); if (parse_arg(&noargv[0], 2, (int *) 0) == FALSE && buf[0] != '\0') { char *argument = NULL; if (LYStdinArgs == NULL) { LYStdinArgs = HTList_new(); #ifdef LY_FIND_LEAKS atexit(LYStdinArgs_free); #endif } StrAllocCopy(argument, buf); HTList_appendObject(LYStdinArgs, argument); CTRACE((tfp, "...StdinArg:%s\n", argument)); } else { CTRACE((tfp, "...complete:%s\n", buf)); } } CTRACE((tfp, "...done with stdin arguments\n")); FREE(buf); } #ifdef SOCKS if (socks_flag) SOCKSinit(argv[0]); #endif /* SOCKS */ /* * If we had -validate set all of the restrictions and disallow a TRACE log * NOW. - FM */ if (LYValidate == TRUE) { parse_restrictions("all"); LYUseTraceLog = FALSE; } /* * If we didn't get and act on a -validate or -anonymous switch, but can * verify that this is the anonymous account, set the default restrictions * for that account and disallow a TRACE log NOW. - FM */ if (!LYValidate && !LYRestricted && strlen(ANONYMOUS_USER) > 0 && #if defined (VMS) || defined (NOUSERS) !strcasecomp((LYGetEnv("USER") == NULL ? " " : LYGetEnv("USER")), ANONYMOUS_USER) #else #ifdef HAVE_CUSERID STREQ((char *) cuserid((char *) NULL), ANONYMOUS_USER) #else STREQ(((char *) getlogin() == NULL ? " " : getlogin()), ANONYMOUS_USER) #endif /* HAVE_CUSERID */ #endif /* VMS */ ) { parse_restrictions("default"); LYRestricted = TRUE; LYUseTraceLog = FALSE; } #ifdef USE_CMD_LOGGING /* * Open command-script, if specified */ if (non_empty(lynx_cmd_script)) { LYTildeExpand(&lynx_cmd_script, TRUE); LYOpenCmdScript(); } /* * Open command-logging, if specified */ if (non_empty(lynx_cmd_logfile)) { LYTildeExpand(&lynx_cmd_logfile, TRUE); LYOpenCmdLogfile(argc, argv); } #endif /* * Set up the default jump file stuff. - FM */ StrAllocCopy(jumpprompt, JUMP_PROMPT); #ifdef JUMPFILE StrAllocCopy(jumpfile, JUMPFILE); { temp = NULL; HTSprintf0(&temp, "JUMPFILE:%s", jumpfile); if (!LYJumpInit(temp)) { CTRACE((tfp, "Failed to register %s\n", temp)); } FREE(temp); } #endif /* JUMPFILE */ /* * If no alternate configuration file was specified on the command line, * see if it's in the environment. */ if (isEmpty(lynx_cfg_file)) { if (((cp = LYGetEnv("LYNX_CFG")) != NULL) || (cp = LYGetEnv("lynx_cfg")) != NULL) StrAllocCopy(lynx_cfg_file, cp); } #ifdef USE_PROGRAM_DIR if (isEmpty(lynx_cfg_file)) { HTSprintf0(&lynx_cfg_file, "%s\\lynx.cfg", program_dir); if (!LYCanReadFile(lynx_cfg_file)) { FREE(lynx_cfg_file); lynx_cfg_file = NULL; } } #endif /* * If we still don't have a configuration file, use the userdefs.h * definition. */ if (isEmpty(lynx_cfg_file)) StrAllocCopy(lynx_cfg_file, LYNX_CFG_FILE); #ifndef _WINDOWS /* avoid the whole ~ thing for now */ LYTildeExpand(&lynx_cfg_file, FALSE); #endif /* * If the configuration file is not available, inform the user and exit. */ if (!LYCanReadFile(lynx_cfg_file)) { fprintf(stderr, gettext("\nConfiguration file \"%s\" is not available.\n\n"), lynx_cfg_file); exit_immediately(EXIT_FAILURE); } /* * Make sure we have the character sets declared. This will initialize the * CHARTRANS handling. - KW */ if (!LYCharSetsDeclared()) { fprintf(stderr, gettext("\nLynx character sets not declared.\n\n")); exit_immediately(EXIT_FAILURE); } /* * (**) in Lynx, UCLYhndl_HTFile_for_unspec and UCLYhndl_for_unrec may be * valid or not, but current_char_set and UCLYhndl_for_unspec SHOULD ALWAYS * be a valid charset. Initialized here and may be changed later from * lynx.cfg/command_line/options_menu. - LP (**) */ /* * Set up the compilation default character set. - FM */ #ifdef CAN_AUTODETECT_DISPLAY_CHARSET if (auto_display_charset >= 0) current_char_set = auto_display_charset; else #endif current_char_set = safeUCGetLYhndl_byMIME(CHARACTER_SET); /* * Set up HTTP default for unlabeled charset (iso-8859-1). */ UCLYhndl_for_unspec = LATIN1; StrAllocCopy(UCAssume_MIMEcharset, LYCharSet_UC[UCLYhndl_for_unspec].MIMEname); #ifdef USE_COLOR_TABLE /* * Set up default foreground and background colors. */ lynx_setup_colors(); #endif /* USE_COLOR_TABLE */ /* * Set the original directory, used for default download */ if (!strcmp(Current_Dir(filename), ".")) { if ((cp = LYGetEnv("PWD")) != 0) StrAllocCopy(original_dir, cp); } else { StrAllocCopy(original_dir, filename); } /* * Set the compilation default signature file. - FM */ LYStrNCpy(filename, LYNX_SIG_FILE, sizeof(filename) - 1); if (LYPathOffHomeOK(filename, sizeof(filename))) { StrAllocCopy(LynxSigFile, filename); LYAddPathToHome(filename, sizeof(filename), LynxSigFile); StrAllocCopy(LynxSigFile, filename); CTRACE((tfp, "LYNX_SIG_FILE set to '%s'\n", LynxSigFile)); } else { CTRACE((tfp, "LYNX_SIG_FILE '%s' is bad. Ignoring.\n", LYNX_SIG_FILE)); } #ifdef USE_PRETTYSRC /*this is required for checking the tagspecs when parsing cfg file by LYReadCFG.c:parse_html_src_spec -HV */ HTSwitchDTD(TRUE); #endif /* * Process the configuration file. */ read_cfg(lynx_cfg_file, "main program", 1, (FILE *) 0); { static char *client_keyfile = NULL; static char *client_certfile = NULL; if ((client_keyfile = LYGetEnv("SSL_CLIENT_KEY_FILE")) != NULL) { CTRACE((tfp, "HTGetSSLHandle: client keyfile is set to %s by SSL_CLIENT_KEY_FILE\n", client_keyfile)); StrAllocCopy(SSL_client_key_file, client_keyfile); } if ((client_certfile = LYGetEnv("SSL_CLIENT_CERT_FILE")) != NULL) { CTRACE((tfp, "HTGetSSLHandle: client certfile is set to %s by SSL_CLIENT_CERT_FILE\n", client_certfile)); StrAllocCopy(SSL_client_cert_file, client_certfile); } } #if defined(USE_COLOR_STYLE) if (!dump_output_immediately) { init_color_styles(&lynx_lss_file2, default_color_styles); } #endif /* USE_COLOR_STYLE */ /* * Process the RC file. */ read_rc(NULL); #ifdef USE_LOCALE_CHARSET LYFindLocaleCharset(); #endif /* * Get WWW_HOME environment variable if it exists. */ if ((cp = LYGetEnv("WWW_HOME")) != NULL) { StrAllocCopy(startfile, cp); LYEscapeStartfile(&startfile); } /* * Set the LynxHome URL. If it's a file URL and the * host is defaulted, force in "//localhost", and if * it's not an absolute URL, make it one. - FM */ StrAllocCopy(LynxHome, startfile); LYEnsureAbsoluteURL(&LynxHome, "LynxHome", FALSE); /* * Process any command line arguments not already handled. - FM * May set startfile as a side-effect. */ for (i = 1; i < argc; i++) { parse_arg(&argv[i], 4, &i); } /* * Process any stdin-derived arguments for a lone "-" which we've loaded * into LYStdinArgs. - FM */ if (LYStdinArgs != NULL) { char *my_args[2]; HTList *cur = LYStdinArgs; my_args[1] = NULL; while (NULL != (my_args[0] = (char *) HTList_nextObject(cur))) { parse_arg(my_args, 4, (int *) 0); } LYStdinArgs_free(); } #ifdef HAVE_TTYNAME /* * If the input is not a tty, we are either running in cron, or are * getting input via a pipe: * * a) in cron, none of stdin/stdout/stderr are tty's. * b) from a pipe, we should have either "-" or "-stdin" options. */ if (!LYGetStdinArgs && !startfile_stdin && !isatty(fileno(stdin)) && (isatty(fileno(stdout) || isatty(fileno(stderr))))) { int ignored = 0; while (fgetc(stdin) != EOF) { ++ignored; } if (ignored) { fprintf(stderr, gettext("Ignored %d characters from standard input.\n"), ignored); fprintf(stderr, gettext("Use \"-stdin\" or \"-\" to tell how to handle piped input.\n")); } } #endif /* HAVE_TTYNAME */ #ifdef CAN_SWITCH_DISPLAY_CHARSET if (current_char_set == auto_display_charset) /* Better: explicit option */ switch_display_charsets = 1; #endif #if defined (TTY_DEVICE) || defined(HAVE_TTYNAME) /* * If we are told to read the startfile from standard input, do it now, * after we have read all of the option data from standard input. * Later we'll use LYReopenInput(). */ if (startfile_stdin) { char result[LY_MAXPATH]; char *buf = NULL; CTRACE((tfp, "processing stdin startfile\n")); if ((fp = LYOpenTemp(result, HTML_SUFFIX, "w")) != 0) { StrAllocCopy(startfile, result); while (GetStdin(&buf, FALSE)) { fputs(buf, fp); fputc('\n', fp); } FREE(buf); LYCloseTempFP(fp); } CTRACE((tfp, "...done stdin startfile\n")); } #endif /* * Initialize other things based on the configuration read. */ #ifdef USE_PRETTYSRC if ((!Old_DTD) != TRUE) /* skip if they are already initialized -HV */ #endif HTSwitchDTD(!Old_DTD); /* * Set up the proper character set with the desired * startup raw 8-bit or CJK mode handling. - FM */ HTMLUseCharacterSet(current_char_set); #ifdef USE_PERSISTENT_COOKIES /* * Sod it, this looks like a reasonable place to load the * cookies file, probably. - RP * * And to set LYCookieSaveFile. - BJP */ if (persistent_cookies) { if (LYCookieFile == NULL) { LYCookieFile = typeMallocn(char, LY_MAXPATH); LYAddPathToHome(LYCookieFile, (size_t) LY_MAXPATH, FNAME_LYNX_COOKIES); } else { LYTildeExpand(&LYCookieFile, FALSE); } LYLoadCookies(LYCookieFile); } /* tilde-expand LYCookieSaveFile */ if (non_empty(LYCookieSaveFile)) { LYTildeExpand(&LYCookieSaveFile, FALSE); } #ifdef USE_PROGRAM_DIR if (is_url(helpfile) == 0) { char *tmp = NULL; HTSprintf0(&tmp, "%s\\%s", program_dir, helpfile); FREE(helpfile); LYLocalFileToURL(&helpfile, tmp); FREE(tmp); } #endif /* * In dump_output_immediately mode, LYCookieSaveFile defaults to * /dev/null, otherwise it defaults to LYCookieFile. */ if (LYCookieSaveFile == NULL) { if (dump_output_immediately) { StrAllocCopy(LYCookieSaveFile, "/dev/null"); } else { StrAllocCopy(LYCookieSaveFile, LYCookieFile); } } #endif /* * Check for a help file URL in the environment. Overriding * compiled-in default and configuration file setting, if found. */ if ((cp = LYGetEnv("LYNX_HELPFILE")) != NULL) StrAllocCopy(helpfile, cp); /* * Set up our help and about file base paths. - FM */ StrAllocCopy(helpfilepath, helpfile); if ((cp = LYPathLeaf(helpfilepath)) != helpfilepath) *cp = '\0'; LYAddHtmlSep(&helpfilepath); /* * Check for a save space path in the environment. If one was set in the * configuration file, that one will be overridden. - FM */ if ((cp = LYGetEnv("LYNX_SAVE_SPACE")) != NULL) StrAllocCopy(lynx_save_space, cp); /* * We have a save space path, make sure it's valid. - FM */ if (isEmpty(lynx_save_space)) { FREE(lynx_save_space); } if (non_empty(lynx_save_space)) { LYTildeExpand(&lynx_save_space, TRUE); #ifdef VMS LYLowerCase(lynx_save_space); if (StrChr(lynx_save_space, '/') != NULL) { if (strlen(lynx_save_space) == 1) { StrAllocCopy(lynx_save_space, "sys$login:"); } else { LYAddPathSep(&lynx_save_space); StrAllocCopy(temp, HTVMS_name("", lynx_save_space)); StrAllocCopy(lynx_save_space, temp); FREE(temp); } } if (StrChr(lynx_save_space, ':') == NULL && StrChr(lynx_save_space, ']') == NULL) { StrAllocCat(lynx_save_space, ":"); } #else LYAddPathSep(&lynx_save_space); #endif /* VMS */ } /* * Set up the file extension and mime type maps from src/HTInit.c and the * global and personal mime.types and mailcap files. These will override * any SUFFIX or VIEWER maps in userdefs.h or the configuration file, if * they overlap. */ HTFormatInit(); if (!FileInitAlreadyDone) HTFileInit(); if (!LYCheckUserAgent()) { HTAlwaysAlert(gettext("Warning:"), UA_NO_LYNX_WARNING); } if (show_cfg) { cleanup(); exit_immediately(EXIT_SUCCESS); } #ifdef USE_SLANG if (LYShowColor >= SHOW_COLOR_ON && !(Lynx_Color_Flags & SL_LYNX_USE_COLOR)) { Lynx_Color_Flags |= SL_LYNX_USE_COLOR; } else if ((Lynx_Color_Flags & SL_LYNX_USE_COLOR) || LYGetEnv("COLORTERM") != NULL) { if (LYShowColor != SHOW_COLOR_NEVER && LYShowColor != SHOW_COLOR_ALWAYS) { LYShowColor = SHOW_COLOR_ON; } } #endif /* USE_SLANG */ if (LYPreparsedSource) { HTPreparsedFormatInit(); } #if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS) #ifdef NEVER_ALLOW_REMOTE_EXEC if (local_exec) { local_exec = FALSE; local_exec_on_local_files = TRUE; } #endif /* NEVER_ALLOW_REMOTE_EXEC */ #endif /* EXEC_LINKS || EXEC_SCRIPTS */ if (emacs_keys) set_emacs_keys(); if (vi_keys) set_vi_keys(); if (no_numbers) { number_links = FALSE; number_fields = FALSE; keypad_mode = NUMBERS_AS_ARROWS; set_numbers_as_arrows(); } if (crawl) { /* No numbered links by default, as documented in CRAWL.announce. - kw */ if (!number_links) { keypad_mode = NUMBERS_AS_ARROWS; } } if (!links_are_numbered()) { if (number_fields) keypad_mode = LINKS_AND_FIELDS_ARE_NUMBERED; if (number_links) keypad_mode = LINKS_ARE_NUMBERED; set_numbers_as_arrows(); } /* * Check the -popup command line toggle. - FM */ if (LYUseDefSelPop == FALSE) { LYSelectPopups = (BOOLEAN) !LYSelectPopups; } /* * Check the -show_cursor command line toggle. - FM */ if (LYUseDefShoCur == FALSE) { LYShowCursor = (BOOLEAN) !LYShowCursor; } /* * Check the -base command line switch with -source. - FM */ if (LYPrependBase && HTOutputFormat == HTAtom_for("www/download")) { LYPrependBaseToSource = TRUE; } /* * Disable multiple bookmark support if not interactive, so it doesn't * crash on curses functions, or if the support was blocked via userdefs.h * and/or lynx.cfg, or via command line restrictions. - FM */ if (no_multibook) LYMBMBlocked = TRUE; if (dump_output_immediately || LYMBMBlocked || no_multibook) { LYMultiBookmarks = MBM_OFF; LYMBMBlocked = TRUE; no_multibook = TRUE; } #ifdef USE_SOURCE_CACHE /* * Disable source caching if not interactive. */ if (dump_output_immediately) LYCacheSource = SOURCE_CACHE_NONE; #endif #ifdef DISP_PARTIAL /* * Disable partial mode if not interactive. */ if (dump_output_immediately) display_partial_flag = FALSE; #endif #ifdef VMS set_vms_keys(); #endif /* VMS */ #if defined (__DJGPP__) if (watt_debug) dbug_init(); sock_init(); __system_flags = __system_emulate_chdir | /* handle `cd' internally */ __system_handle_null_commands | /* ignore cmds with no effect */ __system_allow_long_cmds | /* handle commands > 126 chars */ __system_use_shell | /* use $SHELL if set */ __system_allow_multiple_cmds | /* allow `cmd1; cmd2; ...' */ __system_redirect; /* redirect internally */ /* This speeds up stat() tremendously */ _djstat_flags |= _STAT_INODE | _STAT_EXEC_MAGIC | _STAT_DIRSIZE; #endif /* __DJGPP__ */ /* trap interrupts */ #ifdef WIN32 SetConsoleCtrlHandler((PHANDLER_ROUTINE) cleanup_win32, TRUE); #endif #ifndef NOSIGHUP if (!dump_output_immediately) (void) signal(SIGHUP, cleanup_sig); #endif /* NOSIGHUP */ (void) signal(SIGTERM, cleanup_sig); #ifdef SIGWINCH LYExtSignal(SIGWINCH, size_change); #endif /* SIGWINCH */ #ifndef VMS if (!TRACE && !dump_output_immediately && !stack_dump) { (void) signal(SIGINT, cleanup_sig); #ifndef __linux__ #ifdef SIGBUS (void) signal(SIGBUS, FatalProblem); #endif /* SIGBUS */ #endif /* !__linux__ */ (void) signal(SIGSEGV, FatalProblem); (void) signal(SIGILL, FatalProblem); /* * Since we're doing lots of TCP, just ignore SIGPIPE altogether. * * HTTCP.c should deal with a broken pipe for servers. Rick Mallet's * check after c = GetChar() in LYStrings.c should deal with a * disconnected terminal. So the runaway CPU time problem on Unix * should not occur any more. */ #ifdef SIGPIPE if (signal(SIGPIPE, SIG_IGN) != SIG_IGN) restore_sigpipe_for_children = TRUE; #endif /* SIGPIPE */ } #endif /* !VMS */ #ifdef SIGTSTP /* * Block Control-Z suspending if requested. - FM */ if (no_suspend) (void) signal(SIGTSTP, SIG_IGN); #endif /* SIGTSTP */ /* * Check for a valid HEAD request. - FM */ if (HEAD_request && LYCanDoHEAD(startfile) != TRUE) { fprintf(stderr, "The '-head' switch is for http HEAD requests and cannot be used for\n'%s'.\n", startfile); exit_immediately(EXIT_FAILURE); } /* * Check for a valid MIME headers request. - FM */ if (keep_mime_headers && LYCanDoHEAD(startfile) != TRUE) { fprintf(stderr, "The '-mime_header' switch is for http URLs and cannot be used for\n'%s'.\n", startfile); exit_immediately(EXIT_FAILURE); } /* * Check for a valid traversal request. - FM */ if (traversal && StrNCmp(startfile, "http", 4)) { fprintf(stderr, "The '-traversal' switch is for http URLs and cannot be used for\n'%s'.\n", startfile); exit_immediately(EXIT_FAILURE); } /* * Finish setting up for an INTERACTIVE session. Done here so that URL * guessing in LYEnsureAbsoluteURL() can be interruptible (terminal is in * raw mode, select() works). -BL */ #ifdef USE_PRETTYSRC if (!dump_output_immediately) { HTMLSRC_init_caches(FALSE); /* do it before terminal is initialized */ } #ifdef LY_FIND_LEAKS atexit(html_src_clean_data); #endif #endif if (!dump_output_immediately) { setup(terminal); } /* * If startfile is a file URL and the host is defaulted, force in * "//localhost", and if it's not an absolute URL, make it one. - FM */ LYEnsureAbsoluteURL(&startfile, "STARTFILE", FALSE); /* * If homepage was specified and is a file URL with the host defaulted, * force in "//localhost", and if it's not an absolute URL, make it one. - * FM */ if (non_empty(homepage)) { LYEnsureAbsoluteURL(&homepage, "HOMEPAGE", FALSE); } /* * If we don't have a homepage specified, set it to startfile. Otherwise, * reset LynxHome. - FM */ if (isEmpty(homepage)) { StrAllocCopy(homepage, startfile); } else { StrAllocCopy(LynxHome, homepage); } /* * Set up the inside/outside domain restriction flags. - FM */ if (inlocaldomain()) { #if !defined(HAVE_UTMP) || defined(VMS) /* not selective */ telnet_ok = (BOOL) (!no_inside_telnet && !no_outside_telnet && telnet_ok); #ifndef DISABLE_NEWS news_ok = (BOOL) (!no_inside_news && !no_outside_news && news_ok); #endif ftp_ok = (BOOL) (!no_inside_ftp && !no_outside_ftp && ftp_ok); rlogin_ok = (BOOL) (!no_inside_rlogin && !no_outside_rlogin && rlogin_ok); #else CTRACE((tfp, "LYMain: User in Local domain\n")); telnet_ok = (BOOL) (!no_inside_telnet && telnet_ok); #ifndef DISABLE_NEWS news_ok = (BOOL) (!no_inside_news && news_ok); #endif ftp_ok = (BOOL) (!no_inside_ftp && ftp_ok); rlogin_ok = (BOOL) (!no_inside_rlogin && rlogin_ok); #endif /* !HAVE_UTMP || VMS */ } else { CTRACE((tfp, "LYMain: User in REMOTE domain\n")); telnet_ok = (BOOL) (!no_outside_telnet && telnet_ok); #ifndef DISABLE_NEWS news_ok = (BOOL) (!no_outside_news && news_ok); #endif ftp_ok = (BOOL) (!no_outside_ftp && ftp_ok); rlogin_ok = (BOOL) (!no_outside_rlogin && rlogin_ok); } #ifdef DISABLE_FTP ftp_ok = FALSE; #else /* predefine some known broken ftp servers */ LYSetConfigValue(RC_BROKEN_FTP_RETR, "ProFTPD 1.2.5"); LYSetConfigValue(RC_BROKEN_FTP_RETR, "spftp/"); LYSetConfigValue(RC_BROKEN_FTP_EPSV, "(Version wu-2.6.2-12)"); #endif /* * Make sure our bookmark default strings are all allocated and * synchronized. - FM */ if (isEmpty(bookmark_page)) { temp = NULL; HTSprintf0(&temp, "lynx_bookmarks%s", HTML_SUFFIX); set_default_bookmark_page(temp); FREE(temp); } if (isEmpty(BookmarkPage)) { set_default_bookmark_page(bookmark_page); } #if defined(SYSLOG_REQUESTED_URLS) LYOpenlog(syslog_txt); #endif if (non_empty(x_display)) { LYisConfiguredForX = TRUE; } /* * Here's where we do all the work. */ if (dump_output_immediately) { /* * Finish setting up and start a NON-INTERACTIVE session. - FM */ if (crawl && !number_links && !number_fields) { keypad_mode = NUMBERS_AS_ARROWS; } else if (no_numbers) { keypad_mode = NUMBERS_AS_ARROWS; } else if (!no_list) { if (!links_are_numbered()) { if (number_fields) keypad_mode = LINKS_AND_FIELDS_ARE_NUMBERED; else keypad_mode = LINKS_ARE_NUMBERED; } } if (dump_output_width > 0) { LYcols = dump_output_width; } /* * Normal argument processing puts non-options (URLs) into the Goto * history. Use this to dump all of the pages listed on the command * line, or (if none are listed) via the startfile mechanism. * history. */ #ifdef EXTENDED_STARTFILE_RECALL HTAddGotoURL(startfile); for (i = HTList_count(Goto_URLs) - 1; i >= 0; --i) { StrAllocCopy(startfile, (char *) HTList_objectAt(Goto_URLs, i)); CTRACE((tfp, "dumping %d:%d %s\n", i + 1, HTList_count(Goto_URLs), startfile)); status = mainloop(); if (!no_list && !dump_links_inline && !crawl) /* For -crawl it has already been done! */ printlist(stdout, FALSE); if (i != 0) printf("\n"); } #else status = mainloop(); if (!no_list && !dump_links_inline && !crawl && /* For -crawl it has already been done! */ links_are_numbered()) printlist(stdout, FALSE); #endif #ifdef USE_PERSISTENT_COOKIES /* * We want to save cookies picked up when in immediate dump mode. * Instead of calling cleanup() here, let's only call this one. - BJP */ if (persistent_cookies) LYStoreCookies(LYCookieSaveFile); #endif /* USE_PERSISTENT_COOKIES */ exit_immediately(status); } else { /* * Start an INTERACTIVE session. - FM */ #ifdef USE_COLOR_STYLE cache_tag_styles(); #endif #ifndef NO_DUMP_WITH_BACKSPACES if (with_backspaces) { /* we should warn about this somehow (nop for now) -VH */ with_backspaces = FALSE; } #endif #ifndef ALL_CHARSETS_IN_O_MENU_SCREEN init_charset_subsets(); #endif ena_csi((BOOLEAN) (LYlowest_eightbit[current_char_set] > 155)); #ifdef USE_SESSIONS RestoreSession(); #endif /* USE_SESSIONS */ status = mainloop(); LYCloseCloset(RECALL_URL); LYCloseCloset(RECALL_MAIL); #if defined(PDCURSES) && defined(PDC_BUILD) && PDC_BUILD >= 2401 if (!isendwin()) { if ((saved_scrsize_x != 0) && (saved_scrsize_y != 0)) { resize_term(saved_scrsize_y, saved_scrsize_x); } } #endif cleanup(); exit_immediately(status); } return (status); /* though redundant, for compiler-warnings */ } /* * Called by HTAccessInit to register any protocols supported by lynx. * Protocols added by lynx: * LYNXKEYMAP, lynxcgi, LYNXIMGMAP, LYNXCOOKIE, LYNXCACHE, LYNXMESSAGES */ #ifdef GLOBALREF_IS_MACRO extern GLOBALREF (HTProtocol, LYLynxEditmap); extern GLOBALREF (HTProtocol, LYLynxKeymap); extern GLOBALREF (HTProtocol, LYLynxCGI); extern GLOBALREF (HTProtocol, LYLynxIMGmap); extern GLOBALREF (HTProtocol, LYLynxCookies); #ifdef USE_CACHEJAR extern GLOBALREF (HTProtocol, LYLynxCache); #endif extern GLOBALREF (HTProtocol, LYLynxStatusMessages); #else GLOBALREF HTProtocol LYLynxEditmap; GLOBALREF HTProtocol LYLynxKeymap; GLOBALREF HTProtocol LYLynxCGI; GLOBALREF HTProtocol LYLynxIMGmap; GLOBALREF HTProtocol LYLynxCookies; #ifdef USE_CACHEJAR GLOBALREF HTProtocol LYLynxCache; #endif GLOBALREF HTProtocol LYLynxStatusMessages; #endif /* GLOBALREF_IS_MACRO */ void LYRegisterLynxProtocols(void) { HTRegisterProtocol(&LYLynxEditmap); HTRegisterProtocol(&LYLynxKeymap); HTRegisterProtocol(&LYLynxCGI); HTRegisterProtocol(&LYLynxIMGmap); HTRegisterProtocol(&LYLynxCookies); #ifdef USE_CACHEJAR HTRegisterProtocol(&LYLynxCache); #endif HTRegisterProtocol(&LYLynxStatusMessages); } #ifndef NO_CONFIG_INFO /* * Some stuff to reload lynx.cfg without restarting new lynx session, also load * options menu items and command-line options to make things consistent. * * Called by user of interactive session by LYNXCFG://reload/ link. * * Warning: experimental, more main() reorganization required. * *Known* exceptions: persistent cookies, cookie files. * * Some aspects of COLOR (with slang?). * Viewer stuff, mailcap files * SUFFIX, mime.types files * RULESFILE/RULE * * All work "somewhat", but not exactly as the first time. */ void reload_read_cfg(void) { char *tempfile; FILE *rcfp; /* * no_option_save is always set for -anonymous and -validate. It is better * to check for one or several specific restriction flags than for * 'LYRestricted', which doesn't get set for individual restrictions or for * -validate! However, no_option_save may not be the appropriate one to * check - in that case, a new no_something should be added that gets * automatically set for -anonymous and -validate (and whether it applies * for -anonymous can be made installer- configurable in the usual way at * the bottom of userdefs.h). - kw * */ if (no_option_save) { /* current logic requires(?) that saving user preferences is possible. Additional applicable restrictions are already checked by caller. - kw */ return; } /* * Current user preferences are saved in a temporary file, to be read in * again after lynx.cfg has been read. This avoids accidental changing of * the preferences file. The regular preferences file doesn't even need to * exist, and won't be created as a side effect of this function. Honoring * the no_option_save restriction may thus be unnecessarily restrictive, * but the check is currently still left in place. - kw */ tempfile = typecallocn(char, LY_MAXPATH); if (!tempfile) { HTAlwaysAlert(NULL, NOT_ENOUGH_MEMORY); return; } rcfp = LYOpenTemp(tempfile, ".rc", "w"); if (rcfp == NULL) { FREE(tempfile); HTAlwaysAlert(NULL, CANNOT_OPEN_TEMP); return; } if (!save_rc(rcfp)) { HTAlwaysAlert(NULL, OPTIONS_NOT_SAVED); (void) LYRemoveTemp(tempfile); FREE(tempfile); return; /* can not write the very own file :( */ } #ifdef USE_PERSISTENT_COOKIES if (LYCookieFile != 0 && LYCookieSaveFile != 0) { /* set few safe flags: */ BOOLEAN persistent_cookies_flag = persistent_cookies; char *LYCookieFile_flag = NULL; char *LYCookieSaveFile_flag = NULL; if (persistent_cookies) { StrAllocCopy(LYCookieFile_flag, LYCookieFile); StrAllocCopy(LYCookieSaveFile_flag, LYCookieSaveFile); } #ifdef USE_CHARSET_CHOICE custom_assumed_doc_charset = FALSE; custom_display_charset = FALSE; memset((char *) charset_subsets, 0, sizeof(charset_subset_t) * MAXCHARSETS); #endif #ifdef USE_PRETTYSRC html_src_on_lynxcfg_reload(); #endif /* free downloaders, printers, environments, dired menu */ free_lynx_cfg(); #ifdef USE_SOURCE_CACHE source_cache_file_error = FALSE; /* reset flag */ #endif /* * Process the configuration file. */ read_cfg(lynx_cfg_file, "main program", 1, (FILE *) 0); /* * Process the temporary RC file. */ rcfp = fopen(tempfile, "r"); read_rc(rcfp); (void) LYRemoveTemp(tempfile); FREE(tempfile); /* done with it - kw */ #ifdef USE_CHARSET_CHOICE init_charset_subsets(); #endif /* * Initialize other things based on the configuration read. */ LYSetDisplayLines(); /* Not implemented yet here, * a major problem: file paths * like lynx_save_space, LYCookieFile etc. */ /* restore old settings */ if (persistent_cookies != persistent_cookies_flag) { persistent_cookies = persistent_cookies_flag; HTAlert(gettext("persistent cookies state will be changed in next session only.")); } if (persistent_cookies) { if (strcmp(LYCookieFile, LYCookieFile_flag)) { StrAllocCopy(LYCookieFile, LYCookieFile_flag); CTRACE((tfp, "cookie file can be changed in next session only, restored.\n")); } if (strcmp(LYCookieSaveFile, LYCookieSaveFile_flag)) { StrAllocCopy(LYCookieSaveFile, LYCookieSaveFile_flag); CTRACE((tfp, "cookie save file can be changed in next session only, restored.\n")); } FREE(LYCookieFile_flag); FREE(LYCookieSaveFile_flag); } } #endif /* USE_PERSISTENT_COOKIES */ } #endif /* !NO_CONFIG_INFO */ static void force_dump_mode(void) { dump_output_immediately = TRUE; no_pause = TRUE; LYcols = DFT_COLS; } /* There are different ways of setting arguments on the command line, and * there are different types of arguments. These include: * * -set_some_variable ==> some_variable = TRUE * -toggle_some_variable ==> some_variable = !some_variable * -some_variable=value ==> some_variable = value * * Others are complicated and require a function call. */ #define PARSE_SET(n,t,v,h) {n, t, UNION_SET(v), h} #define PARSE_INT(n,t,v,h) {n, t, UNION_INT(v), h} #define PARSE_STR(n,t,v,h) {n, t, UNION_STR(v), h} #define PARSE_FUN(n,t,v,h) {n, t, UNION_FUN(v), h} #define PARSE_NIL {NULL, 0, UNION_DEF(0), NULL} typedef struct parse_args_type { const char *name; int type; #define TOGGLE_ARG 0x0010 #define SET_ARG 0x0020 #define UNSET_ARG 0x0030 #define FUNCTION_ARG 0x0040 #define LYSTRING_ARG 0x0050 #define INT_ARG 0x0060 #define STRING_ARG 0x0070 #define TIME_ARG 0x0080 #define ARG_TYPE_MASK 0x0FF0 #define NEED_NEXT_ARG 0x1000 #define NEED_INT_ARG (NEED_NEXT_ARG | INT_ARG) #define NEED_TIME_ARG (NEED_NEXT_ARG | TIME_ARG) #define NEED_LYSTRING_ARG (NEED_NEXT_ARG | LYSTRING_ARG) #define NEED_STRING_ARG (NEED_NEXT_ARG | STRING_ARG) #define NEED_FUNCTION_ARG (NEED_NEXT_ARG | FUNCTION_ARG) /* If the NEED_NEXT_ARG flags is set, and the option was not specified * with an '=' character, then use the next argument in the argv list. */ ParseData; const char *help_string; } Config_Type; /* -auth, -pauth */ static int parse_authentication(char *next_arg, char **result) { /* * Authentication information for protected documents. */ char *auth_info = 0; if (next_arg != 0) { StrAllocCopy(auth_info, next_arg); memset(next_arg, ' ', strlen(next_arg)); /* Let's not show too much */ } if (auth_info != 0) { char *cp; if ((cp = StrChr(auth_info, ':')) != 0) { /* Pw */ *cp++ = '\0'; /* Terminate ID */ HTUnEscape(cp); StrAllocCopy(result[1], cp); } if (*auth_info) { /* Id */ HTUnEscape(auth_info); StrAllocCopy(result[0], auth_info); } FREE(auth_info); } return 0; } /* -anonymous */ static int anonymous_fun(char *next_arg GCC_UNUSED) { if (!LYValidate && !LYRestricted) parse_restrictions("default"); LYRestricted = TRUE; return 0; } /* -assume_charset */ static int assume_charset_fun(char *next_arg) { assumed_charset = TRUE; UCLYhndl_for_unspec = safeUCGetLYhndl_byMIME(next_arg); StrAllocCopy(UCAssume_MIMEcharset, LYCharSet_UC[UCLYhndl_for_unspec].MIMEname); CTRACE((tfp, "assume_charset_fun %s ->%d ->%s\n", NonNull(next_arg), UCLYhndl_for_unspec, UCAssume_MIMEcharset)); return 0; } /* -assume_local_charset */ static int assume_local_charset_fun(char *next_arg) { UCLYhndl_HTFile_for_unspec = safeUCGetLYhndl_byMIME(next_arg); return 0; } /* -assume_unrec_charset */ static int assume_unrec_charset_fun(char *next_arg) { UCLYhndl_for_unrec = safeUCGetLYhndl_byMIME(next_arg); return 0; } /* -auth */ static int auth_fun(char *next_arg) { parse_authentication(next_arg, authentication_info); return 0; } /* -base */ static int base_fun(char *next_arg GCC_UNUSED) { /* * Treat -source equivalently to an interactive download with * LYPrefixBaseToSource configured to TRUE, so that a BASE tag is prepended * for text/html content types. We normally treat the module-wide global * LYPrefixBaseToSource flag as FALSE with -source, but force it TRUE, * later, if LYPrependBase is set TRUE here. - FM */ LYPrependBase = TRUE; if (HTOutputFormat == HTAtom_for("www/dump")) HTOutputFormat = HTAtom_for("www/download"); return 0; } /* -cache */ static int cache_fun(char *next_arg) { if (next_arg != 0) HTCacheSize = atoi(next_arg); /* * Limit size. */ if (HTCacheSize < 2) HTCacheSize = 2; return 0; } /* -child */ static int child_fun(char *next_arg GCC_UNUSED) { child_lynx = TRUE; no_disk_save = TRUE; no_mail = TRUE; return 0; } /* -child_relaxed */ static int child_relaxed_fun(char *next_arg GCC_UNUSED) { child_lynx = TRUE; return 0; } #ifdef USE_SLANG /* -color */ static int color_fun(char *next_arg GCC_UNUSED) { Lynx_Color_Flags |= SL_LYNX_USE_COLOR; if (LYShowColor != SHOW_COLOR_ALWAYS) LYShowColor = SHOW_COLOR_ON; return 0; } #endif /* -convert_to */ static int convert_to_fun(char *next_arg) { if (next_arg != 0) { char *outformat = NULL; char *cp1, *cp2, *cp4; int chndl; StrAllocCopy(outformat, next_arg); /* not lowercased, to allow for experimentation - kw */ /*LYLowerCase(outformat); */ if ((cp1 = StrChr(outformat, ';')) != NULL) { if ((cp2 = LYstrstr(cp1, "charset")) != NULL) { cp2 += 7; while (*cp2 == ' ' || *cp2 == '=' || *cp2 == '"') cp2++; for (cp4 = cp2; (*cp4 != '\0' && *cp4 != '"' && *cp4 != ';' && !WHITE(*cp4)); cp4++) ; /* do nothing */ *cp4 = '\0'; /* This is intentionally not the "safe" version, to allow for experimentation. */ chndl = UCGetLYhndl_byMIME(cp2); if (chndl < 0) chndl = UCLYhndl_for_unrec; if (chndl < 0) { fprintf(stderr, gettext("Lynx: ignoring unrecognized charset=%s\n"), cp2); } else { current_char_set = chndl; } *cp1 = '\0'; /* truncate outformat */ } } HTOutputFormat = HTAtom_for(outformat); FREE(outformat); } else { HTOutputFormat = NULL; } return 0; } /* -crawl */ static int crawl_fun(char *next_arg GCC_UNUSED) { crawl = TRUE; LYcols = DFT_COLS; return 0; } /* -display */ static int display_fun(char *next_arg) { if (next_arg != 0) { LYsetXDisplay(next_arg); } return 0; } /* -display_charset */ static int display_charset_fun(char *next_arg) { int i = UCGetLYhndl_byMIME(next_arg); #ifdef CAN_AUTODETECT_DISPLAY_CHARSET if (i < 0 && !strcasecomp(next_arg, "auto")) i = auto_display_charset; #endif if (i < 0) { /* do nothing here: so fallback to lynx.cfg */ fprintf(stderr, gettext("Lynx: ignoring unrecognized charset=%s\n"), next_arg); } else current_char_set = i; return 0; } /* -dump */ static int dump_output_fun(char *next_arg GCC_UNUSED) { force_dump_mode(); return 0; } /* -editor */ static int editor_fun(char *next_arg) { if (next_arg != 0) StrAllocCopy(editor, next_arg); system_editor = TRUE; return 0; } /* -error_file */ static int error_file_fun(char *next_arg) { /* * Output return (success/failure) code of an HTTP transaction. */ if (next_arg != 0) http_error_file = next_arg; return 0; } #if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS) /* -exec */ static int exec_fun(char *next_arg GCC_UNUSED) { #ifndef NEVER_ALLOW_REMOTE_EXEC local_exec = TRUE; #else local_exec_on_local_files = TRUE; #endif /* NEVER_ALLOW_REMOTE_EXEC */ return 0; } #endif /* -get_data */ static int get_data_fun(char *next_arg GCC_UNUSED) { /* * User data for GET form. */ char **get_data; char *buf = NULL; /* * On Unix, conflicts with curses when interactive so let's force a dump. * -CL * * On VMS, mods have been made in LYCurses.c to deal with potential * conflicts, so don't force the dump here. - FM */ #ifndef VMS force_dump_mode(); #endif /* VMS */ StrAllocCopy(form_get_data, "?"); /* Prime the pump */ get_data = &form_get_data; /* * Build GET data for later. Stop reading when we see a line with "---" as * its first three characters. */ while (GetStdin(&buf, TRUE)) { StrAllocCat(*get_data, buf); } CTRACE((tfp, "get_data:%s\n", *get_data)); CTRACE((tfp, "get_data:%s\n", form_get_data)); return 0; } /* -help */ static int help_fun(char *next_arg GCC_UNUSED) { print_help_and_exit(0); return 0; } /* -hiddenlinks */ int hiddenlinks_fun(char *next_arg) { /* *INDENT-OFF* */ static Config_Enum table[] = { { "merge", HIDDENLINKS_MERGE }, { "listonly", HIDDENLINKS_SEPARATE }, { "ignore", HIDDENLINKS_IGNORE }, { NULL, -1 }, }; /* *INDENT-ON* */ if (next_arg != 0) { if (!LYgetEnum(table, next_arg, &LYHiddenLinks)) print_help_and_exit(-1); } else { LYHiddenLinks = HIDDENLINKS_MERGE; } return 0; } /* -homepage */ static int homepage_fun(char *next_arg) { if (next_arg != 0) { StrAllocCopy(homepage, next_arg); LYEscapeStartfile(&homepage); } return 0; } /* -mime_header */ static int mime_header_fun(char *next_arg GCC_UNUSED) { /* * Include mime headers and force source dump. */ keep_mime_headers = TRUE; force_dump_mode(); HTOutputFormat = (LYPrependBase ? HTAtom_for("www/download") : HTAtom_for("www/dump")); LYcols = MAX_COLS; return 0; } #ifndef DISABLE_NEWS /* -newschunksize */ static int newschunksize_fun(char *next_arg) { if (next_arg != 0) { HTNewsChunkSize = atoi(next_arg); /* * If the new HTNewsChunkSize exceeds the maximum, * increase HTNewsMaxChunk to this size. - FM */ if (HTNewsChunkSize > HTNewsMaxChunk) HTNewsMaxChunk = HTNewsChunkSize; } return 0; } /* -newsmaxchunk */ static int newsmaxchunk_fun(char *next_arg) { if (next_arg) { HTNewsMaxChunk = atoi(next_arg); /* * If HTNewsChunkSize exceeds the new maximum, * reduce HTNewsChunkSize to this maximum. - FM */ if (HTNewsChunkSize > HTNewsMaxChunk) HTNewsChunkSize = HTNewsMaxChunk; } return 0; } #endif /* not DISABLE_NEWS */ /* -nobold */ static int nobold_fun(char *next_arg GCC_UNUSED) { LYnoVideo(1); return 0; } /* -nobrowse */ static int nobrowse_fun(char *next_arg GCC_UNUSED) { HTDirAccess = HT_DIR_FORBID; return 0; } /* -nocolor */ static int nocolor_fun(char *next_arg GCC_UNUSED) { LYShowColor = SHOW_COLOR_NEVER; #ifdef USE_SLANG Lynx_Color_Flags &= ~(unsigned) SL_LYNX_USE_COLOR; Lynx_Color_Flags |= SL_LYNX_OVERRIDE_COLOR; #endif return 0; } /* -nopause */ static int nopause_fun(char *next_arg GCC_UNUSED) { no_pause = TRUE; return 0; } /* -nomore */ static int nomore_fun(char *next_arg GCC_UNUSED) { nomore = TRUE; return 0; } /* -noreverse */ static int noreverse_fun(char *next_arg GCC_UNUSED) { LYnoVideo(2); return 0; } /* -nounderline */ static int nounderline_fun(char *next_arg GCC_UNUSED) { LYnoVideo(4); return 0; } /* -nozap */ static int nozap_fun(char *next_arg) { LYNoZapKey = 1; /* everything but "initially" treated as "full" - kw */ if (next_arg != 0) { if (strcasecomp(next_arg, "initially") == 0) LYNoZapKey = 2; } return 0; } /* -pauth */ static int pauth_fun(char *next_arg) { parse_authentication(next_arg, proxyauth_info); return 0; } /* -post_data */ static int post_data_fun(char *next_arg GCC_UNUSED) { /* * User data for POST form. */ char **post_data; char *buf = NULL; /* * On Unix, conflicts with curses when interactive so let's force a dump. * - CL * * On VMS, mods have been made in LYCurses.c to deal with potential * conflicts, so don't force a dump here. - FM */ #ifndef VMS force_dump_mode(); #endif /* VMS */ post_data = &form_post_data; /* * Build post data for later. Stop reading when we see a line with "---" * as its first three characters. */ while (GetStdin(&buf, TRUE)) { StrAllocCat(*post_data, buf); } return 0; } static const char *show_restriction(const char *name) { const char *value = 0; switch (find_restriction(name, -1)) { case TRUE: value = "on"; break; case FALSE: value = "off"; break; default: value = "?"; break; } return value; } /* -restrictions */ static int restrictions_fun(char *next_arg) { /* *INDENT-OFF* */ static const struct { const char *name; const char *help; } table[] = { { "all", "restricts all options." }, { "bookmark", "disallow changing the location of the bookmark file" }, { "bookmark_exec", "disallow execution links via the bookmark file" }, #if defined(DIRED_SUPPORT) && defined(OK_PERMIT) { "change_exec_perms", "\ disallow changing the eXecute permission on files\n\ (but still allow it for directories) when local file\n\ management is enabled." }, #endif /* DIRED_SUPPORT && OK_PERMIT */ #ifdef SUPPORT_CHDIR { "chdir", "\ disallow changing the working directory of lynx, e.g.,\n\ to affect the behavior of download command" }, #endif #if defined(HAVE_CONFIG_H) && !defined(NO_CONFIG_INFO) { "compileopts_info", "\ disable info on options used to compile the binary" }, #endif { "default", "\ same as commandline option -anonymous. Sets the\n\ default service restrictions for anonymous users. Set to\n\ all restricted, except for: inside_telnet, outside_telnet,\n\ inside_ftp, outside_ftp, inside_rlogin, outside_rlogin,\n\ inside_news, outside_news, telnet_port, jump, mail, print,\n\ exec, and goto. The settings for these, as well as\n\ additional goto restrictions for specific URL schemes\n\ that are also applied, are derived from definitions\n\ within userdefs.h." }, #ifdef DIRED_SUPPORT { "dired_support", "disallow local file management" }, #endif /* DIRED_SUPPORT */ { "disk_save", "disallow saving to disk in the download and print menus" }, { "dotfiles", "disallow access to, or creation of, hidden (dot) files" }, { "download", "disallow some downloaders in the download menu" }, { "editor", "disallow editing" }, { "exec", "disable execution scripts" }, { "exec_frozen", "disallow the user from changing the execution link option" }, #ifdef USE_EXTERNALS { "externals", "disable passing URLs to some external programs" }, #endif { "file_url", "\ disallow using G)oto, served links or bookmarks for\n\ file: URL's" }, { "goto", "disable the 'g' (goto) command" }, #if !defined(HAVE_UTMP) || defined(VMS) /* not selective */ { "inside_ftp", "\ disallow ftps coming from inside your\n\ domain (utmp required for selectivity)" }, { "inside_news", "\ disallow USENET news reading and posting coming\n\ from inside your domain (utmp required for selectivity)" }, { "inside_rlogin", "\ disallow rlogins coming from inside your\n\ domain (utmp required for selectivity)" }, { "inside_telnet", "\ disallow telnets coming from inside your\n\ domain (utmp required for selectivity)" }, #else { "inside_ftp", "\ disallow ftps coming from inside your domain" }, { "inside_news", "\ disallow USENET news reading and posting coming\n\ from inside your domain" }, { "inside_rlogin", "\ disallow rlogins coming from inside your domain" }, { "inside_telnet", "\ disallow telnets coming from inside your domain" }, #endif /* HAVE_UTMP || VMS */ { "jump", "disable the 'j' (jump) command" }, { "lynxcfg_info", "\ disable viewing of lynx.cfg configuration file info" }, #ifndef NO_CONFIG_INFO { "lynxcfg_xinfo", "\ disable extended lynx.cfg viewing and reloading" }, #endif { "lynxcgi", "\ disallow execution of Lynx CGI URLs" }, { "mail", "disallow mail" }, { "multibook", "disallow multiple bookmark files" }, { "news_post", "disallow USENET News posting." }, { "option_save", "disallow saving options in .lynxrc" }, #if !defined(HAVE_UTMP) || defined(VMS) /* not selective */ { "outside_ftp", "\ disallow ftps coming from outside your\n\ domain (utmp required for selectivity)" }, { "outside_news", "\ disallow USENET news reading and posting coming\n\ from outside your domain (utmp required for selectivity)" }, { "outside_rlogin", "\ disallow rlogins coming from outside your\n\ domain (utmp required for selectivity)" }, { "outside_telnet", "\ disallow telnets coming from outside your\n\ domain (utmp required for selectivity)" }, #else { "outside_ftp", "\ disallow ftp coming from outside your domain" }, { "outside_news", "\ disallow USENET news reading and posting coming\n\ from outside your domain" }, { "outside_rlogin", "\ disallow rlogins coming from outside your domain" }, { "outside_telnet", "\ disallow telnets coming from outside your domain" }, #endif /* !HAVE_UTMP || VMS */ { "print", "disallow most print options" }, { "shell", "\ disallow shell escapes, and lynxexec, lynxprog or lynxcgi\n\ G)oto's" }, { "suspend", "disallow Control-Z suspends with escape to shell" }, { "telnet_port", "disallow specifying a port in telnet G)oto's" }, { "useragent", "disallow modifications of the User-Agent header" }, }; /* *INDENT-ON* */ static const char *Usage[] = { "" ,"USAGE: lynx -restrictions=[option][,option][,option]" ,"List of Options:" ," ? when used alone, list restrictions in effect." }; unsigned j, k, column = 0; const char *name; const char *value; BOOLEAN found, first; if (isEmpty(next_arg)) { SetOutputMode(O_TEXT); for (j = 0; j < TABLESIZE(Usage); j++) { printf("%s\n", Usage[j]); } for (j = 0; j < TABLESIZE(table); j++) { if (!strcmp(table[j].name, "all") || !strcmp(table[j].name, "default")) { value = NULL; } else { value = show_restriction(table[j].name); } print_help_strings(table[j].name, table[j].help, value, FALSE); } first = TRUE; for (j = 0; j < TABLESIZE(table); j++) { found = FALSE; if ((name = index_to_restriction(j)) == 0) { break; } for (k = 0; k < TABLESIZE(table); k++) { if (!strcmp(name, table[k].name)) { found = TRUE; } } if (!found) { if (first) { printf("Other restrictions (see the user's guide):\n"); } value = show_restriction(table[j].name); printf("%s%s (%s)", column ? ", " : " ", name, value); column += (unsigned) (5 + strlen(name) + strlen(value)); if (column > 50) { column = 0; printf("\n"); } first = FALSE; } } if (column) printf("\n"); SetOutputMode(O_BINARY); exit_immediately(EXIT_SUCCESS); } else if (*next_arg == '?') { SetOutputMode(O_TEXT); print_restrictions_to_fd(stdout); SetOutputMode(O_BINARY); exit_immediately(EXIT_SUCCESS); } else { parse_restrictions(next_arg); } return 0; } /* -selective */ static int selective_fun(char *next_arg GCC_UNUSED) { HTDirAccess = HT_DIR_SELECTIVE; return 0; } /* -source */ static int source_fun(char *next_arg GCC_UNUSED) { force_dump_mode(); HTOutputFormat = (LYPrependBase ? HTAtom_for("www/download") : HTAtom_for("www/dump")); LYcols = MAX_COLS; return 0; } /* -traversal */ static int traversal_fun(char *next_arg GCC_UNUSED) { traversal = TRUE; #ifdef USE_SLANG LYcols = DFT_COLS; #else LYcols = MAX_COLS; #endif /* USE_SLANG */ return 0; } /* -version */ static int version_fun(char *next_arg GCC_UNUSED) { char *result = NULL; SetLocale(); SetOutputMode(O_TEXT); HTSprintf0(&result, gettext("%s Version %s (%s)"), LYNX_NAME, LYNX_VERSION, LYVersionDate()); StrAllocCat(result, "\n"); #ifdef USE_SSL HTSprintf(&result, "libwww-FM %s,", HTLibraryVersion); append_ssl_version(&result, " "); #else HTSprintf(&result, "libwww-FM %s", HTLibraryVersion); #endif /* USE_SSL */ #if defined(NCURSES) && defined(HAVE_CURSES_VERSION) HTSprintf(&result, ", %s", curses_version()); #if defined(WIDEC_CURSES) HTSprintf(&result, "(wide)"); #endif #elif defined(PDCURSES) && defined(PDC_BUILD) HTSprintf(&result, ", pdcurses %.3f", PDC_BUILD * 0.001); #elif defined(USE_SLANG) && defined(SLANG_VERSION_STRING) HTSprintf(&result, ", s-lang %s", SLANG_VERSION_STRING); #endif printf("%s\n", result); free(result); /* * Define NO_BUILDSTAMP if you really want an executable with no timestamp in * the -version message. */ #ifdef NO_BUILDSTAMP #define BUILDSTAMP "" #else #define BUILDSTAMP " (" __DATE__ " " __TIME__ ")" #endif /* * SYSTEM_NAME is set by the configure script. Show build date/time for other * systems, according to predefined compiler symbols. */ #ifdef SYSTEM_NAME printf(gettext("Built on %s%s.\n"), SYSTEM_NAME, BUILDSTAMP); #elif defined(__CYGWIN__) printf("Compiled by CYGWIN%s.\n", BUILDSTAMP); #elif defined(__BORLANDC__) printf("Compiled by Borland C++%s.\n", BUILDSTAMP); #elif defined(_MSC_VER) printf("Compiled by Microsoft Visual C++%s.\n", BUILDSTAMP); #elif defined(__DJGPP__) printf("Compiled by DJGPP%s.\n", BUILDSTAMP); #elif !defined(NO_BUILDSTAMP) printf("Compiled at %s %s.\n", __DATE__, __TIME__); #endif puts(""); puts(gettext("Copyrights held by the Lynx Developers Group,")); puts(gettext("the University of Kansas, CERN, and other contributors.")); puts(gettext("Distributed under the GNU General Public License (Version 2).")); puts(gettext("See https://lynx.invisible-island.net/ and the online help for more information.")); puts(""); #ifdef USE_SSL #if defined(OPENSSL_VERSION_TEXT) && !defined(LIBGNUTLS_VERSION) puts("See http://www.openssl.org/ for information about OpenSSL."); #endif /* OPENSSL_VERSION_TEXT */ puts(""); #endif /* USE_SSL */ SetOutputMode(O_BINARY); exit_immediately(EXIT_SUCCESS); /* NOT REACHED */ return 0; } /* -width */ static int width_fun(char *next_arg) { if (next_arg != 0) { int w = atoi(next_arg); if (w > 0) dump_output_width = ((w < MAX_COLS) ? w : MAX_COLS); } return 0; } #if defined(PDCURSES) && defined(PDC_BUILD) && PDC_BUILD >= 2401 /* -scrsize */ static int scrsize_fun(char *next_arg) { if (next_arg != 0) { char *cp; if ((cp = StrChr(next_arg, ',')) != 0) { *cp++ = '\0'; /* Terminate ID */ scrsize_x = atoi(next_arg); scrsize_y = atoi(cp); if ((scrsize_x <= 1) || (scrsize_y <= 1)) { scrsize_x = scrsize_y = 0; } if ((scrsize_x > 0) && (scrsize_x < 40)) { scrsize_x = 40; } if ((scrsize_y > 0) && (scrsize_y < 6)) { scrsize_y = 6; } CTRACE((tfp, "scrsize: x=%d, y=%d\n", scrsize_x, scrsize_y)); } } return 0; } #endif /* NOTE: This table is sorted by name to make the help message useful */ /* *INDENT-OFF* */ static Config_Type Arg_Table [] = { PARSE_SET( "accept_all_cookies", 4|SET_ARG, LYAcceptAllCookies, "\naccept cookies without prompting if Set-Cookie handling\nis on" ), #if USE_BLAT_MAILER PARSE_SET( "altblat", 4|TOGGLE_ARG, mail_is_altblat, "select mail tool (`"THIS_BLAT_MAIL"' ==> `"THAT_BLAT_MAIL"')" ), #endif PARSE_FUN( "anonymous", 2|FUNCTION_ARG, anonymous_fun, "apply restrictions for anonymous account,\nsee also -restrictions" ), PARSE_FUN( "assume_charset", 4|NEED_FUNCTION_ARG, assume_charset_fun, "=MIMEname\ncharset for documents that don't specify it" ), PARSE_FUN( "assume_local_charset", 4|NEED_FUNCTION_ARG, assume_local_charset_fun, "=MIMEname\ncharset assumed for local files" ), PARSE_FUN( "assume_unrec_charset", 4|NEED_FUNCTION_ARG, assume_unrec_charset_fun, "=MIMEname\nuse this instead of unrecognized charsets" ), PARSE_FUN( "auth", 4|NEED_FUNCTION_ARG, auth_fun, "=id:pw\nauthentication information for protected documents" ), PARSE_FUN( "base", 4|FUNCTION_ARG, base_fun, "prepend a request URL comment and BASE tag to " STR_HTML "\n\ outputs for -source dumps" ), #ifndef DISABLE_BIBP PARSE_STR( "bibhost", 4|NEED_LYSTRING_ARG, BibP_bibhost, "=URL\nlocal bibp server (default http://bibhost/)" ), #endif #ifdef USE_BLINK PARSE_SET( "blink", 4|SET_ARG, term_blink_is_boldbg, "enable bright background via the BLINK terminal attribute" ), #endif PARSE_SET( "book", 4|SET_ARG, bookmark_start, "use the bookmark page as the startfile" ), PARSE_SET( "buried_news", 4|TOGGLE_ARG, scan_for_buried_news_references, "toggles scanning of news articles for buried references" ), PARSE_FUN( "cache", 4|NEED_FUNCTION_ARG, cache_fun, "=NUMBER\nNUMBER of documents cached in memory" ), PARSE_SET( "case", 4|SET_ARG, LYcase_sensitive, "enable case sensitive user searching" ), PARSE_SET( "center", 4|TOGGLE_ARG, no_table_center, "toggle center alignment in HTML TABLE" ), PARSE_STR( "cfg", 2|NEED_LYSTRING_ARG, lynx_cfg_file, "=FILENAME\nspecifies a lynx.cfg file other than the default" ), PARSE_FUN( "child", 4|FUNCTION_ARG, child_fun, "exit on left-arrow in startfile, and disable save to disk" ), PARSE_FUN( "child_relaxed", 4|FUNCTION_ARG, child_relaxed_fun, "exit on left-arrow in startfile (allows save to disk)" ), #ifdef USE_CMD_LOGGING PARSE_STR( "cmd_log", 2|NEED_LYSTRING_ARG, lynx_cmd_logfile, "=FILENAME\nlog keystroke commands to the given file" ), PARSE_STR( "cmd_script", 2|NEED_LYSTRING_ARG, lynx_cmd_script, "=FILENAME\nread keystroke commands from the given file\n(see -cmd_log)" ), #endif PARSE_SET( "collapse_br_tags", 4|TOGGLE_ARG, LYCollapseBRs, "toggles collapsing of BR tags" ), #ifdef USE_SLANG PARSE_FUN( "color", 4|FUNCTION_ARG, color_fun, "force color mode on with standard bg colors" ), #endif PARSE_INT( "connect_timeout", 4|NEED_INT_ARG, connect_timeout, "=N\nset the N-second connection timeout" ), PARSE_FUN( "convert_to", 4|FUNCTION_ARG, convert_to_fun, "=FORMAT\nconvert input, FORMAT is in MIME type notation\n(experimental)" ), #ifdef USE_PERSISTENT_COOKIES PARSE_STR( "cookie_file", 4|LYSTRING_ARG, LYCookieFile, "=FILENAME\nspecifies a file to use to read cookies" ), PARSE_STR( "cookie_save_file", 4|LYSTRING_ARG, LYCookieSaveFile, "=FILENAME\nspecifies a file to use to store cookies" ), #endif /* USE_PERSISTENT_COOKIES */ PARSE_SET( "cookies", 4|TOGGLE_ARG, LYSetCookies, "toggles handling of Set-Cookie headers" ), #ifndef VMS PARSE_SET( "core", 4|TOGGLE_ARG, LYNoCore, "toggles forced core dumps on fatal errors" ), #endif PARSE_FUN( "crawl", 4|FUNCTION_ARG, crawl_fun, "with -traversal, output each page to a file\n\ with -dump, format output as with -traversal, but to stdout" ), #ifdef USE_CURSES_PADS PARSE_SET( "curses_pads", 4|TOGGLE_ARG, LYuseCursesPads, "uses curses pad feature to support left/right shifting" ), #endif #ifdef DISP_PARTIAL PARSE_SET( "debug_partial", 4|TOGGLE_ARG, debug_display_partial, "incremental display stages with MessageSecs delay" ), #endif #ifdef USE_DEFAULT_COLORS PARSE_SET( "default_colors", 4|TOGGLE_ARG, LYuse_default_colors, "use terminal default foreground/background colors" ), #endif PARSE_INT( "delay", 4|NEED_TIME_ARG, DelaySecs, "=NNN\nset NNN-second delay at statusline message" ), PARSE_FUN( "display", 4|NEED_FUNCTION_ARG, display_fun, "=DISPLAY\nset the display variable for X exec'ed programs" ), PARSE_FUN( "display_charset", 4|NEED_FUNCTION_ARG, display_charset_fun, "=MIMEname\ncharset for the terminal output" ), PARSE_SET( "dont_wrap_pre", 4|SET_ARG, dont_wrap_pre, "inhibit wrapping of text in 
 when -dump'ing and\n\
-crawl'ing, mark wrapped lines in interactive session"
   ),
   PARSE_FUN(
      "dump",		1|FUNCTION_ARG,		dump_output_fun,
      "dump the first file to stdout and exit"
   ),
   PARSE_FUN(
      "editor",		4|NEED_FUNCTION_ARG,	editor_fun,
      "=EDITOR\nenable edit mode with specified editor"
   ),
   PARSE_SET(
      "emacskeys",	4|SET_ARG,		emacs_keys,
      "enable emacs-like key movement"
   ),
   PARSE_SET(
      "enable_scrollback", 4|TOGGLE_ARG,	enable_scrollback,
      "\ntoggles compatibility with comm programs' scrollback\n\
keys (may be incompatible with some curses packages)"
   ),
   PARSE_FUN(
      "error_file",	4|NEED_FUNCTION_ARG,	error_file_fun,
      "=FILE\nwrite the HTTP status code here"
   ),
#if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS)
#ifndef NEVER_ALLOW_REMOTE_EXEC
   PARSE_FUN(
      "exec",		4|FUNCTION_ARG,		exec_fun,
      "enable local program execution"
   ),
#endif
#endif /* EXEC_LINKS || EXEC_SCRIPTS */
#ifdef VMS
   PARSE_SET(
      "fileversions",	4|SET_ARG,		HTVMSFileVersions,
      "include all versions of files in local VMS directory\nlistings"
   ),
#endif
#ifdef LY_FIND_LEAKS
   PARSE_SET(
      "find_leaks",	4|TOGGLE_ARG,		LYfind_leaks,
      "toggles memory-leak checking"
   ),
#endif
   PARSE_SET(
      "force_empty_hrefless_a",	4|SET_ARG,	force_empty_hrefless_a,
      "\nforce HREF-less 'A' elements to be empty (close them as\n\
soon as they are seen)"
   ),
   PARSE_SET(
      "force_html",	4|SET_ARG,		LYforce_HTML_mode,
      "forces the first document to be interpreted as HTML"
   ),
   PARSE_SET(
      "force_secure",	4|TOGGLE_ARG,		LYForceSSLCookiesSecure,
      "toggles forcing of the secure flag for SSL cookies"
   ),
#if !defined(NO_OPTION_FORMS) && !defined(NO_OPTION_MENU)
   PARSE_SET(
      "forms_options",	4|TOGGLE_ARG,		LYUseFormsOptions,
      "toggles forms-based vs old-style options menu"
   ),
#endif
   PARSE_SET(
      "from",		4|TOGGLE_ARG,		LYNoFromHeader,
      "toggle transmission of From headers"
   ),
#ifndef DISABLE_FTP
   PARSE_SET(
      "ftp",		4|UNSET_ARG,		ftp_ok,
      "disable ftp access"
   ),
#endif
   PARSE_FUN(
      "get_data",	2|FUNCTION_ARG,		get_data_fun,
      "user data for get forms, read from stdin,\nterminated by '---' on a line"
   ),
   PARSE_SET(
      "head",		4|SET_ARG,		HEAD_request,
      "send a HEAD request"
   ),
   PARSE_FUN(
      "help",		4|FUNCTION_ARG,		help_fun,
      "print this usage message"
   ),
   PARSE_FUN(
      "hiddenlinks",	4|NEED_FUNCTION_ARG,	hiddenlinks_fun,
      "=[option]\nhidden links: options are merge, listonly, or ignore"
   ),
   PARSE_SET(
      "historical",	4|TOGGLE_ARG,		historical_comments,
      "toggles use of '>' or '-->' as terminator for comments"
   ),
   PARSE_FUN(
      "homepage",	4|NEED_FUNCTION_ARG,	homepage_fun,
      "=URL\nset homepage separate from start page"
   ),
   PARSE_SET(
      "html5_charsets",	4|TOGGLE_ARG,		html5_charsets,
      "toggles use of HTML5 charset replacements"
   ),
   PARSE_SET(
      "image_links",	4|TOGGLE_ARG,		clickable_images,
      "toggles inclusion of links for all images"
   ),
   PARSE_STR(
      "index",		4|NEED_LYSTRING_ARG,	indexfile,
      "=URL\nset the default index file to URL"
   ),
   PARSE_SET(
      "ismap",		4|TOGGLE_ARG,		LYNoISMAPifUSEMAP,
      "toggles inclusion of ISMAP links when client-side\nMAPs are present"
   ),
#ifdef USE_JUSTIFY_ELTS
   PARSE_SET(
      "justify",	4|SET_ARG,		ok_justify,
      "do justification of text"
   ),
#endif
   PARSE_INT(
      "link",		4|NEED_INT_ARG,		crawl_count,
      "=NUMBER\nstarting count for lnk#.dat files produced by -crawl"
   ),
   PARSE_SET(
      "list_decoded",	4|TOGGLE_ARG,		dump_links_decoded,
      "with -dump, forces it to decode URL-encoded links"
   ),
   PARSE_SET(
      "list_inline",	4|TOGGLE_ARG,		dump_links_inline,
      "with -dump, forces it to show links inline with text"
   ),
   PARSE_SET(
      "listonly",	4|TOGGLE_ARG,		dump_links_only,
      "with -dump, forces it to show only the list of links"
   ),
   PARSE_SET(
      "localhost",	4|SET_ARG,		local_host_only,
      "disable URLs that point to remote hosts"
   ),
#if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS)
   PARSE_SET(
      "locexec",	4|SET_ARG,		local_exec_on_local_files,
      "enable local program execution from local files only"
   ),
#endif /* EXEC_LINKS || EXEC_SCRIPTS */
#if defined(USE_COLOR_STYLE)
   PARSE_STR(
      "lss",		2|NEED_LYSTRING_ARG,	lynx_lss_file2,
      "=FILENAME\nspecifies a lynx.lss file other than the default"
   ),
#endif
   PARSE_FUN(
      "mime_header",	4|FUNCTION_ARG,		mime_header_fun,
      "include mime headers and force source dump"
   ),
   PARSE_SET(
      "minimal",	4|TOGGLE_ARG,		minimal_comments,
      "toggles minimal versus valid comment parsing"
   ),
#ifdef EXP_NESTED_TABLES
   PARSE_SET(
      "nested_tables",	4|TOGGLE_ARG,		nested_tables,
      "toggles nested-tables logic"
   ),
#endif
#ifndef DISABLE_NEWS
   PARSE_FUN(
      "newschunksize",	4|NEED_FUNCTION_ARG,	newschunksize_fun,
      "=NUMBER\nnumber of articles in chunked news listings"
   ),
   PARSE_FUN(
      "newsmaxchunk",	4|NEED_FUNCTION_ARG,	newsmaxchunk_fun,
      "=NUMBER\nmaximum news articles in listings before chunking"
   ),
#endif
#if USE_BLAT_MAILER
   PARSE_SET(
      "noblat",		4|TOGGLE_ARG,		mail_is_blat,
      "select mail tool (`"THIS_BLAT_MAIL"' ==> `"SYSTEM_MAIL"')"
   ),
#endif
   PARSE_FUN(
      "nobold",		4|FUNCTION_ARG,		nobold_fun,
      "disable bold video-attribute"
   ),
   PARSE_FUN(
      "nobrowse",	4|FUNCTION_ARG,		nobrowse_fun,
      "disable directory browsing"
   ),
   PARSE_SET(
      "nocc",		4|SET_ARG,		LYNoCc,
      "disable Cc: prompts for self copies of mailings"
   ),
   PARSE_FUN(
      "nocolor",	4|FUNCTION_ARG,		nocolor_fun,
      "turn off color support"
   ),
#if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS)
   PARSE_SET(
      "noexec",		4|UNSET_ARG,		local_exec,
      "disable local program execution (DEFAULT)"
   ),
#endif /* EXEC_LINKS || EXEC_SCRIPTS */
   PARSE_SET(
      "nofilereferer",	4|SET_ARG,		no_filereferer,
      "disable transmission of Referer headers for file URLs"
   ),
   PARSE_SET(
      "nolist",		4|SET_ARG,		no_list,
      "disable the link list feature in dumps"
   ),
   PARSE_SET(
      "nolog",		4|UNSET_ARG,		error_logging,
      "disable mailing of error messages to document owners"
   ),
   PARSE_SET(
      "nomargins",	4|SET_ARG,		no_margins,
      "disable the right/left margins in the default\nstyle-sheet"
   ),
   PARSE_FUN(
      "nomore",		4|FUNCTION_ARG,		nomore_fun,
      "disable -more- string in statusline messages"
   ),
#if defined(HAVE_SIGACTION) && defined(SIGWINCH)
   PARSE_SET(
      "nonrestarting_sigwinch", 4|SET_ARG,	LYNonRestartingSIGWINCH,
      "\nmake window size change handler non-restarting"
   ),
#endif /* HAVE_SIGACTION */
   PARSE_SET(
      "nonumbers",	4|SET_ARG,		no_numbers,
      "disable the link/form numbering feature in dumps"
   ),
   PARSE_FUN(
      "nopause",	4|FUNCTION_ARG,		nopause_fun,
      "disable forced pauses for statusline messages"
   ),
   PARSE_SET(
      "noprint",	4|SET_ARG,		no_print,
      "disable some print functions, like -restrictions=print"
   ),
   PARSE_SET(
      "noredir",	4|SET_ARG,		no_url_redirection,
      "don't follow Location: redirection"
   ),
   PARSE_SET(
      "noreferer",	4|SET_ARG,		LYNoRefererHeader,
      "disable transmission of Referer headers"
   ),
   PARSE_FUN(
      "noreverse",	4|FUNCTION_ARG,		noreverse_fun,
      "disable reverse video-attribute"
   ),
#ifdef SOCKS
   PARSE_SET(
      "nosocks",	2|UNSET_ARG,		socks_flag,
      "don't use SOCKS proxy for this session"
   ),
#endif
   PARSE_SET(
      "nostatus",	4|SET_ARG,		no_statusline,
      "disable the miscellaneous information messages"
   ),
   PARSE_SET(
      "notitle",	4|SET_ARG,		no_title,
      "disable the title at the top of each page"
   ),
   PARSE_FUN(
      "nounderline",	4|FUNCTION_ARG,		nounderline_fun,
      "disable underline video-attribute"
   ),
   PARSE_FUN(
      "nozap",		4|FUNCTION_ARG,		nozap_fun,
      "=DURATION (\"initially\" or \"full\") disable checks for 'z' key"
   ),
   PARSE_SET(
      "number_fields",	4|SET_ARG,		number_fields,
      "force numbering of links as well as form input fields"
   ),
   PARSE_SET(
      "number_links",	4|SET_ARG,		number_links,
      "force numbering of links"
   ),
#ifdef DISP_PARTIAL
   PARSE_SET(
      "partial",	4|TOGGLE_ARG,		display_partial_flag,
      "toggles display partial pages while downloading"
   ),
   PARSE_INT(
      "partial_thres",	4|NEED_INT_ARG,		partial_threshold,
      "[=NUMBER]\nnumber of lines to render before repainting display\n\
with partial-display logic"
   ),
#endif
#ifndef DISABLE_FTP
   PARSE_SET(
      "passive_ftp",	4|TOGGLE_ARG,		ftp_passive,
      "toggles passive ftp connection"
   ),
#endif
   PARSE_FUN(
      "pauth",		4|NEED_FUNCTION_ARG,	pauth_fun,
      "=id:pw\nauthentication information for protected proxy server"
   ),
   PARSE_SET(
      "popup",		4|UNSET_ARG,		LYUseDefSelPop,
      "toggles handling of single-choice SELECT options via\n\
popup windows or as lists of radio buttons"
   ),
   PARSE_FUN(
      "post_data",	2|FUNCTION_ARG,		post_data_fun,
      "user data for post forms, read from stdin,\n\
terminated by '---' on a line"
   ),
   PARSE_SET(
      "preparsed",	4|SET_ARG,		LYPreparsedSource,
      "show parsed " STR_HTML " with -source and in source view\n\
to visualize how lynx behaves with invalid HTML"
   ),
#ifdef USE_PRETTYSRC
   PARSE_SET(
      "prettysrc",	4|SET_ARG,		LYpsrc,
      "do syntax highlighting and hyperlink handling in source\nview"
   ),
#endif
   PARSE_SET(
      "print",		4|UNSET_ARG,		no_print,
      "enable print functions (DEFAULT), opposite of -noprint"
   ),
   PARSE_SET(
      "pseudo_inlines", 4|TOGGLE_ARG,		pseudo_inline_alts,
      "toggles pseudo-ALTs for inlines with no ALT string"
   ),
   PARSE_SET(
      "raw",		4|UNSET_ARG,		LYUseDefaultRawMode,
      "toggles default setting of 8-bit character translations\n\
or CJK mode for the startup character set"
   ),
   PARSE_SET(
      "realm",		4|SET_ARG,		check_realm,
      "restricts access to URLs in the starting realm"
   ),
   PARSE_INT(
      "read_timeout",	4|NEED_INT_ARG,		reading_timeout,
      "=N\nset the N-second read-timeout"
   ),
   PARSE_SET(
      "reload",		4|SET_ARG,		reloading,
      "flushes the cache on a proxy server\n(only the first document affected)"
   ),
   PARSE_FUN(
      "restrictions",	4|FUNCTION_ARG,		restrictions_fun,
      "=[options]\nuse -restrictions to see list"
   ),
   PARSE_SET(
      "resubmit_posts", 4|TOGGLE_ARG,		LYresubmit_posts,
      "toggles forced resubmissions (no-cache) of forms with\n\
method POST when the documents they returned are sought\n\
with the PREV_DOC command or from the History List"
   ),
   PARSE_SET(
      "rlogin",		4|UNSET_ARG,		rlogin_ok,
      "disable rlogins"
   ),
#if defined(PDCURSES) && defined(PDC_BUILD) && PDC_BUILD >= 2401
   PARSE_FUN(
      "scrsize",	4|NEED_FUNCTION_ARG,	scrsize_fun,
      "=width,height\nsize of window"
   ),
#endif
#ifdef USE_SCROLLBAR
   PARSE_SET(
      "scrollbar",	4|TOGGLE_ARG,		LYShowScrollbar,
      "toggles showing scrollbar"
   ),
   PARSE_SET(
      "scrollbar_arrow", 4|TOGGLE_ARG,		LYsb_arrow,
      "toggles showing arrows at ends of the scrollbar"
   ),
#endif
   PARSE_FUN(
      "selective",	4|FUNCTION_ARG,		selective_fun,
      "require .www_browsable files to browse directories"
   ),
#ifdef USE_SESSIONS
   PARSE_STR(
      "session",	2|NEED_LYSTRING_ARG,	session_file,
      "=FILENAME\nresumes from specified file on startup and\n\
saves session to that file on exit"
   ),
   PARSE_STR(
      "sessionin",	2|NEED_LYSTRING_ARG,	sessionin_file,
      "=FILENAME\nresumes session from specified file"
   ),
   PARSE_STR(
      "sessionout",	2|NEED_LYSTRING_ARG,	sessionout_file,
      "=FILENAME\nsaves session to specified file"
   ),
#endif /* USE_SESSIONS */
   PARSE_SET(
      "short_url",	4|SET_ARG,		long_url_ok,
      "enables examination of beginning and end of long URL in\nstatus line"
   ),
   PARSE_SET(
      "show_cfg",	1|SET_ARG,		show_cfg,
      "Show `LYNX.CFG' setting"
   ),
   PARSE_SET(
      "show_cursor",	4|TOGGLE_ARG,		LYUseDefShoCur,
      "toggles hiding of the cursor in the lower right corner"
   ),
#ifdef USE_READPROGRESS
   PARSE_SET(
      "show_rate",	4|TOGGLE_ARG,		LYShowTransferRate,
      "toggles display of transfer rate"
   ),
#endif
   PARSE_STR(
      "socks5_proxy",	2|NEED_LYSTRING_ARG,	socks5_proxy,
      "=URL\n(via which) SOCKS5 proxy to connect (unrelated to -nosocks!)"
   ),
   PARSE_SET(
      "soft_dquotes",	4|TOGGLE_ARG,		soft_dquotes,
      "toggles emulation of the old Netscape and Mosaic\n\
bug which treated '>' as a co-terminator for\ndouble-quotes and tags"
   ),
   PARSE_FUN(
      "source",		4|FUNCTION_ARG,		source_fun,
      "dump the source of the first file to stdout and exit"
   ),
   PARSE_SET(
      "stack_dump",	4|SET_ARG,		stack_dump,
      "disable SIGINT cleanup handler"
   ),
   PARSE_SET(
      "startfile_ok",	4|SET_ARG,		startfile_ok,
      "allow non-http startfile and homepage with -validate"
   ),
   PARSE_SET(
      "stderr",		4|SET_ARG,		dump_to_stderr,
      "write warning messages to standard error when -dump\nor -source is used"
   ),
   PARSE_SET(
      "stdin",		4|SET_ARG,		startfile_stdin,
      "read startfile from standard input"
   ),
#ifdef SYSLOG_REQUESTED_URLS
   PARSE_STR(
      "syslog",		4|NEED_LYSTRING_ARG,	syslog_txt,
      "=text\ninformation for syslog call"
   ),
   PARSE_SET(
      "syslog_urls",	4|SET_ARG,		syslog_requested_urls,
      "log requested URLs with syslog"
   ),
#endif
   PARSE_SET(
      "tagsoup",	4|SET_ARG,		DTD_recovery,
      "use TagSoup rather than SortaSGML parser"
   ),
   PARSE_SET(
      "telnet",		4|UNSET_ARG,		telnet_ok,
      "disable telnets"
   ),
   PARSE_STR(
      "term",		4|NEED_STRING_ARG,	terminal,
      "=TERM\nset terminal type to TERM"
   ),
#ifdef _WINDOWS
   PARSE_INT(
      "timeout",	4|INT_ARG,		lynx_timeout,
      "=NUMBER\nset TCP/IP timeout"
   ),
#endif
   PARSE_SET(
      "tlog",		2|TOGGLE_ARG,		LYUseTraceLog,
      "toggles use of a Lynx Trace Log for the current\nsession"
   ),
#ifdef TEXTFIELDS_MAY_NEED_ACTIVATION
   PARSE_SET(
      "tna",		4|SET_ARG,		textfields_activation_option,
      "turn on \"Textfields Need Activation\" mode"
   ),
#endif
#ifndef NO_LYNX_TRACE
   PARSE_SET(
      "trace",		1|SET_ARG,		WWW_TraceFlag,
      "turns on Lynx trace mode"
   ),
   PARSE_INT(
      "trace_mask",	1|INT_ARG,		WWW_TraceMask,
      "customize Lynx trace mode"
   ),
#endif
   PARSE_FUN(
      "traversal",	4|FUNCTION_ARG,		traversal_fun,
      "traverse all http links derived from startfile"
   ),
   PARSE_SET(
      "trim_blank_lines", 2|TOGGLE_ARG,		LYtrimBlankLines,
      "\ntoggle trimming of leading/trailing/collapsed-br blank lines"
   ),
   PARSE_SET(
      "trim_input_fields", 2|SET_ARG,		LYtrimInputFields,
      "\ntrim input text/textarea fields in forms"
   ),
   PARSE_SET(
      "underline_links",4|TOGGLE_ARG,		LYUnderlineLinks,
      "toggles use of underline/bold attribute for links"
   ),
   PARSE_SET(
      "underscore",	4|TOGGLE_ARG,		use_underscore,
      "toggles use of _underline_ format in dumps"
   ),
   PARSE_SET(
      "unique_urls",	4|TOGGLE_ARG,		unique_urls,
      "toggles use of unique-urls setting for -dump and -listonly options"
   ),
   PARSE_SET(
       "update_term_title", 4|SET_ARG, update_term_title,
       "enables updating the title of terminal emulators"
   ),
#if defined(USE_MOUSE)
   PARSE_SET(
      "use_mouse",	4|SET_ARG,		LYUseMouse,
      "turn on mouse support"
   ),
#endif
   PARSE_STR(
      "useragent",	4|NEED_LYSTRING_ARG,	LYUserAgent,
      "=Name\nset alternate Lynx User-Agent header"
   ),
   PARSE_SET(
      "validate",	2|SET_ARG,		LYValidate,
      "accept only http URLs (meant for validation)\n\
implies more restrictions than -anonymous, but\n\
goto is allowed for http and https"
   ),
   PARSE_SET(
      "verbose",	4|TOGGLE_ARG,		verbose_img,
      "toggles [LINK], [IMAGE] and [INLINE] comments\n\
with filenames of these images"
   ),
   PARSE_FUN(
      "version",	1|FUNCTION_ARG,		version_fun,
      "print Lynx version information"
   ),
   PARSE_SET(
      "vikeys",		4|SET_ARG,		vi_keys,
      "enable vi-like key movement"
   ),
#ifdef __DJGPP__
   PARSE_SET(
      "wdebug",		4|TOGGLE_ARG,		watt_debug,
      "enables Waterloo tcp/ip packet debug. Prints to watt\ndebugfile"
  ),
#endif /* __DJGPP__ */
   PARSE_FUN(
      "width",		4|NEED_FUNCTION_ARG,	width_fun,
      "=NUMBER\nscreen width for formatting of dumps (default is 80)"
   ),
#ifndef NO_DUMP_WITH_BACKSPACES
   PARSE_SET(
      "with_backspaces", 4|SET_ARG,		with_backspaces,
      "emit backspaces in output if -dumping or -crawling\n(like 'man' does)"
   ),
#endif
   PARSE_SET(
      "xhtml_parsing",	4|SET_ARG,		LYxhtml_parsing,
      "enable XHTML 1.0 parsing"
   ),
   PARSE_NIL
};
/* *INDENT-ON* */

static void print_help_strings(const char *name,
			       const char *help,
			       const char *value,
			       int option)
{
    int pad;
    int c;
    int first;
    int field_width = 20;

    pad = field_width - (2 + option + (int) strlen(name));

    fprintf(stdout, "  %s%s", option ? "-" : "", name);

    if (*help != '=') {
	pad--;
	while (pad > 0) {
	    fputc(' ', stdout);
	    pad--;
	}
	fputc(' ', stdout);	/* at least one space */
	first = 0;
    } else {
	first = pad;
    }

    if (StrChr(help, '\n') == 0) {
	fprintf(stdout, "%s", help);
    } else {
	while ((c = *help) != 0) {
	    if (c == '\n') {
		if ((pad = --first) < 0) {
		    pad = field_width;
		} else {
		    c = ' ';
		}
		fputc(c, stdout);
		while (pad--)
		    fputc(' ', stdout);
	    } else {
		fputc(c, stdout);
	    }
	    help++;
	    first--;
	}
    }
    if (value)
	printf(" (%s)", value);
    fputc('\n', stdout);
}

static void print_help_and_exit(int exit_status)
{
    Config_Type *p;

    if (pgm == NULL)
	pgm = "lynx";

    SetOutputMode(O_TEXT);

    fprintf(stdout, gettext("USAGE: %s [options] [file]\n"), pgm);
    fprintf(stdout, gettext("Options are:\n"));
#ifdef VMS
    print_help_strings("",
		       "receive the arguments from stdin (enclose\n\
in double-quotes (\"-\") on VMS)", NULL, TRUE);
#else
    print_help_strings("", "receive options and arguments from stdin", NULL, TRUE);
#endif /* VMS */

    for (p = Arg_Table; p->name != 0; p++) {
	char temp[LINESIZE], *value = temp;
	ParseUnionPtr q = ParseUnionOf(p);

	switch (p->type & ARG_TYPE_MASK) {
	case TOGGLE_ARG:
	case SET_ARG:
	    strcpy(temp, *(q->set_value) ? "on" : "off");
	    break;
	case UNSET_ARG:
	    strcpy(temp, *(q->set_value) ? "off" : "on");
	    break;
	case INT_ARG:
	    sprintf(temp, "%d", *(q->int_value));
	    break;
	case TIME_ARG:
	    sprintf(temp, SECS_FMT, (double) Secs2SECS(*(q->int_value)));
	    break;
	case STRING_ARG:
	    if ((value = *(q->str_value)) != 0
		&& !*value)
		value = 0;
	    break;
	default:
	    value = 0;
	    break;
	}
	print_help_strings(p->name, p->help_string, value, TRUE);
    }

    SetOutputMode(O_BINARY);

    exit_immediately(exit_status);
}

/*
 * This function performs a string comparison on two strings a and b.  a is
 * assumed to be an ordinary null terminated string, but b may be terminated
 * by an '=', '+' or '-' character.  If terminated by '=', *c will be pointed
 * to the character following the '='.  If terminated by '+' or '-', *c will
 * be pointed to that character.  (+/- added for toggle processing - BL.)
 * If a and b match, it returns 1.  Otherwise 0 is returned.
 */
static int arg_eqs_parse(const char *a,
			 char *b,
			 char **c)
{
    int result = -1;

    *c = NULL;
    while (result < 0) {
	if ((*a != *b)
	    || (*a == 0)
	    || (*b == 0)) {
	    if (*a == 0) {
		switch (*b) {
		case '\t':	/* embedded blank when reading stdin */
		case ' ':
		    *c = LYSkipBlanks(b);
		    result = 1;
		    break;
		case '=':
		case ':':
		    *c = b + 1;
		    result = 1;
		    break;
		case '-':
#if OPTNAME_ALLOW_DASHES
		    if (isalpha(UCH(b[1]))) {
			result = 0;
			break;
		    }
#endif
		    /* FALLTHRU */
		case '+':
		    *c = b;
		    result = 1;
		    break;
		case 0:
		    result = 1;
		    break;
		default:
		    result = 0;
		    break;
		}
	    } else {
#if OPTNAME_ALLOW_DASHES
		if (!(*a == '_' && *b == '-'))
#endif
		    result = 0;
	    }
	}
	a++;
	b++;
    }
    return result;
}

#define is_true(s)  (*s == '1' || *s == '+' || !strcasecomp(s, "on")  || !strcasecomp(s, "true"))
#define is_false(s) (*s == '0' || *s == '-' || !strcasecomp(s, "off") || !strcasecomp(s, "false"))

/*
 * Parse an option.
 *	argv[] points to the beginning of the unprocessed options.
 *	mask is used to select certain options which must be processed
 *		before others.
 *	countp (if nonnull) points to an index into argv[], which is updated
 *		to reflect option values which are also parsed.
 */
static BOOL parse_arg(char **argv,
		      unsigned mask,
		      int *countp)
{
    Config_Type *p;
    char *arg_name;

#if EXTENDED_STARTFILE_RECALL
    static BOOLEAN no_options_further = FALSE;	/* set to TRUE after '--' argument */
    static int nof_index = 0;	/* set the index of -- argument */
#endif

    arg_name = argv[0];
    CTRACE((tfp, "parse_arg(arg_name=%s, mask=%u, count=%d)\n",
	    arg_name, mask, countp ? *countp : -1));

#if EXTENDED_STARTFILE_RECALL
    if (mask == (unsigned) ((countp != 0) ? 0 : 1)) {
	no_options_further = FALSE;
	/* want to reset nonoption when beginning scan for --stdin */
	if (nonoption != 0) {
	    FREE(nonoption);
	}
    }
#endif

    /*
     * Check for a command line startfile.  - FM
     */
    if (*arg_name != '-'
#if EXTENDED_OPTION_LOGIC
	|| ((no_options_further == TRUE)
	    && (countp != 0)
	    && (nof_index < (*countp)))
#endif
	) {
#if EXTENDED_STARTFILE_RECALL
	/*
	 * On the last pass (mask==4), check for cases where we may want to
	 * provide G)oto history for multiple startfiles.
	 */
	if (mask == 4) {
	    if (nonoption != 0) {
		LYEnsureAbsoluteURL(&nonoption, "NONOPTION", FALSE);
		HTAddGotoURL(nonoption);
		FREE(nonoption);
	    }
	    StrAllocCopy(nonoption, arg_name);
	}
#endif
	StrAllocCopy(startfile, arg_name);
	LYEscapeStartfile(&startfile);
#ifdef _WINDOWS			/* 1998/01/14 (Wed) 20:11:17 */
	HTUnEscape(startfile);
	{
	    char *q = startfile;

	    while (*q++) {
		if (*q == '|')
		    *q = ':';
	    }
	}
#endif
	CTRACE((tfp, "parse_arg startfile:%s\n", startfile));
	return (BOOL) (countp != 0);
    }
#if EXTENDED_OPTION_LOGIC
    if (strcmp(arg_name, "--") == 0) {
	no_options_further = TRUE;
	nof_index = countp ? *countp : -1;
	return TRUE;
    }
#endif

    /* lose the first '-' character */
    arg_name++;

    /*
     * Skip any lone "-" arguments, because we've loaded the stdin input into
     * an HTList structure for special handling.  - FM
     */
    if (*arg_name == 0)
	return TRUE;

    /* allow GNU-style options with -- prefix */
    if (*arg_name == '-')
	++arg_name;

    CTRACE((tfp, "parse_arg lookup(%s)\n", arg_name));

    p = Arg_Table;
    while (p->name != 0) {
	ParseUnionPtr q = ParseUnionOf(p);
	ParseFunc fun;
	char *next_arg = NULL;
	char *temp_ptr = NULL;

	if ((p->name[0] != *arg_name)
	    || (0 == arg_eqs_parse(p->name, arg_name, &next_arg))) {
	    p++;
	    continue;
	}

	if (p->type & NEED_NEXT_ARG) {
	    if (next_arg == 0) {
		next_arg = argv[1];
		if ((countp != 0) && (next_arg != 0))
		    (*countp)++;
	    }
	    CTRACE((tfp, "...arg:%s\n", NONNULL(next_arg)));
	}

	/* ignore option if it's not our turn */
	if (((unsigned) (p->type) & mask) == 0) {
	    CTRACE((tfp, "...skip (mask %u/%d)\n", mask, p->type & 7));
	    return FALSE;
	}

	switch (p->type & ARG_TYPE_MASK) {
	case TOGGLE_ARG:	/* FALLTHRU */
	case SET_ARG:		/* FALLTHRU */
	case UNSET_ARG:
	    if (q->set_value != 0) {
		if (next_arg == 0) {
		    switch (p->type & ARG_TYPE_MASK) {
		    case TOGGLE_ARG:
			*(q->set_value) = (BOOL) !(*(q->set_value));
			break;
		    case SET_ARG:
			*(q->set_value) = TRUE;
			break;
		    case UNSET_ARG:
			*(q->set_value) = FALSE;
			break;
		    }
		} else if (is_true(next_arg)) {
		    *(q->set_value) = TRUE;
		} else if (is_false(next_arg)) {
		    *(q->set_value) = FALSE;
		}
		/* deliberately ignore anything else - BL */
	    }
	    break;

	case FUNCTION_ARG:
	    fun = q->fun_value;
	    if (0 != fun) {
		if (-1 == (*fun) (next_arg)) {
		}
	    }
	    break;

	case LYSTRING_ARG:
	    if ((q->str_value != 0) && (next_arg != 0))
		StrAllocCopy(*(q->str_value), next_arg);
	    break;

	case INT_ARG:
	    if ((q->int_value != 0) && (next_arg != 0))
		*(q->int_value) = (int) strtol(next_arg, &temp_ptr, 0);
	    break;

	case TIME_ARG:
	    if ((q->int_value != 0) && (next_arg != 0)) {
		float ival;

		if (1 == LYscanFloat(next_arg, &ival)) {
		    *(q->int_value) = (int) SECS2Secs(ival);
		}
	    }
	    break;

	case STRING_ARG:
	    if ((q->str_value != 0) && (next_arg != 0))
		*(q->str_value) = next_arg;
	    break;
	}

	Old_DTD = DTD_recovery;	/* BOOL != int */
	return TRUE;
    }

    if (pgm == 0)
	pgm = "LYNX";

    fprintf(stderr, gettext("%s: Invalid Option: %s\n"), pgm, argv[0]);
    print_help_and_exit(-1);
    return FALSE;
}

#ifndef VMS
static void FatalProblem(int sig)
{
    /*
     * Ignore further interrupts.  - mhc:  11/2/91
     */
#ifndef NOSIGHUP
    (void) signal(SIGHUP, SIG_IGN);
#endif /* NOSIGHUP */
    (void) signal(SIGTERM, SIG_IGN);
    (void) signal(SIGINT, SIG_IGN);
#ifndef __linux__
#ifdef SIGBUS
    (void) signal(SIGBUS, SIG_IGN);
#endif /* ! SIGBUS */
#endif /* !__linux__ */
    (void) signal(SIGSEGV, SIG_IGN);
    (void) signal(SIGILL, SIG_IGN);

    /*
     * Flush all messages.  - FM
     */
    fflush(stderr);
    fflush(stdout);

    /*
     * Deal with curses, if on, and clean up.  - FM
     */
    if (LYOutOfMemory && LYCursesON) {
	LYSleepAlert();
    }
    cleanup_sig(0);
#ifndef __linux__
#ifdef SIGBUS
    signal(SIGBUS, SIG_DFL);
#endif /* SIGBUS */
#endif /* !__linux__ */
    signal(SIGSEGV, SIG_DFL);
    signal(SIGILL, SIG_DFL);

    /*
     * Issue appropriate messages and abort or exit.  - FM
     */
    if (LYOutOfMemory == FALSE) {
	fprintf(stderr, "\r\n\
A Fatal error has occurred in %s Ver. %s\r\n", LYNX_NAME, LYNX_VERSION);

	fprintf(stderr, "\r\n\
Please notify your system administrator to confirm a bug, and\r\n\
if confirmed, to notify the lynx-dev list.  Bug reports should\r\n\
have concise descriptions of the command and/or URL which causes\r\n\
the problem, the operating system name with version number, the\r\n\
TCPIP implementation, and any other relevant information.\r\n");

	if (!(sig == 0 && LYNoCore)) {
	    fprintf(stderr, "\r\n\
Do NOT mail the core file if one was generated.\r\n");
	}
	if (sig != 0) {
	    fprintf(stderr, "\r\n\
Lynx now exiting with signal:  %d\r\n\r\n", sig);
#ifdef WIN_EX			/* 1998/08/09 (Sun) 09:58:25 */
	    {
		char *msg;

		switch (sig) {
		case SIGABRT:
		    msg = "SIGABRT";
		    break;
		case SIGFPE:
		    msg = "SIGFPE";
		    break;
		case SIGILL:
		    msg = "SIGILL";
		    break;
		case SIGSEGV:
		    msg = "SIGSEGV";
		    break;
		default:
		    msg = "Not-def";
		    break;
		}
		fprintf(stderr, "signal code = %s\n", msg);
	    }
#endif
	}

	/*
	 * Exit and possibly dump core.
	 */
	if (LYNoCore) {
	    exit_immediately(EXIT_FAILURE);
	}
	abort();

    } else {
	LYOutOfMemory = FALSE;
	printf("\r\n%s\r\n\r\n", MEMORY_EXHAUSTED_ABORT);
	fflush(stdout);

	/*
	 * Exit without dumping core.
	 */
	exit_immediately(EXIT_FAILURE);
    }
}
#endif /* !VMS */