--- /dev/null
+/*
+ * This file contains functions which implement parts of the
+ * text-mode user interface.
+ *
+ * Copyright (c) 1987-2018 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "textclient.h"
+
+char *helpnames[] = {
+ "help",
+ "admin",
+ "floors",
+ "intro",
+ "mail",
+ "network",
+ "software"
+};
+
+char *helptexts[] = {
+
+" Citadel Help Menu\n"
+" \n"
+" ? Help. (Typing a '?' will give you a menu almost anywhere)\n"
+" A Abandon this room where you stopped reading, goto next room.\n"
+" C Chat (multiuser chat, where available)\n"
+" D Prints directory, if there is one in the current room.\n"
+" E Enter a message.\n"
+" F Read all messages in the room, forward.\n"
+" G Goto next room which has UNREAD messages.\n"
+" H Help. Same as '?'\n"
+" I Reads the Information file for this room.\n"
+" K List of Known rooms.\n"
+" L Reads the last five messages in the room.\n"
+" N Reads all new messages in the room.\n"
+" O Reads all old messages, backwards.\n"
+" P Page another user (send an instant message)\n"
+" R Reads all messages in the room, in reverse order.\n"
+" S Skips current room without making its messages old.\n"
+" T Terminate (logout)\n"
+" U Ungoto (returns to the last room you were in)\n"
+" W Displays who is currently logged in.\n"
+" X Toggle eXpert mode (menus and help blurbs on/off)\n"
+" Z Zap (forget) room. (Removes the room from your list)\n"
+" + - Goto next, previous room on current floor.\n"
+" > < Goto next, previous floor.\n"
+" * Enter any locally installed 'doors'.\n"
+" \n"
+" In addition, there are dot commands. You hit the . (dot), then press the\n"
+"first letter of each word of the command. As you hit the letters, the words\n"
+"pop onto your screen. Exceptions: after you hit .Help or .Goto, the remainder\n"
+"of the command is a help file name or room name.\n"
+" \n"
+" *** USE .<H>elp ? for additional help *** \n"
+
+,
+
+"The following commands are available only to Admins. A subset of these\n"
+"commands are available to room aides when they are currently in the room\n"
+"they are room aide for.\n"
+"\n"
+" <.> <A>dmin <K>ill this room (Delete the current room)\n"
+" <.> <A>dmin <E>dit this room (Edit the current room's parameters)\n"
+" <.> <A>dmin <W>ho knows room (List users with access to this room)\n"
+" <.> <A>dmin edit <U>ser (Change user's access level, password, etc.)\n"
+" <.> <A>dmin <V>alidate new users (Process new user registrations)\n"
+" <.> <A>dmin enter <I>nfo file (Create/change this room's banner)\n"
+" <.> <A>dmin <R>oom <I>nvite user (Grant access to an invitation-only room)\n"
+" <.> <A>dmin <R>oom <K>ick out user (Revoke access to an invitation-only room)\n"
+" <.> <A>dmin <F>ile <D>elete (Delete a file from the room's directory)\n"
+" <.> <A>dmin <F>ile <S>end over net (Transmit a file to another node)\n"
+" <.> <A>dmin <F>ile <M>ove (Move a file to another room's directory)\n"
+" <.> <A>dmin <M>essage edit: (Edit system banners)\n"
+" <.> <A>dmin <P>ost (Post a message on behalf of another user)\n"
+" <.> <A>dmin <S>ystem configuration <G>eneral (Edit global site config)\n"
+" <.> <A>dmin <S>ystem configuration <I>nternet (Edit Internet domains)\n"
+" <.> <A>dmin <S>ystem configuration check <M>essage base (Internal checks)\n"
+" <.> <A>dmin <S>ystem configuration <N>etwork (Netting with other Citadels)\n"
+" <.> <A>dmin <S>ystem configuration network <F>ilter list\n"
+" <.> <A>dmin <T>erminate server <N>ow (Shut down Citadel server now)\n"
+" <.> <A>dmin <T>erminate server <S>cheduled (Shut down Citadel server later)\n"
+" <.> <A>dmin mailing <L>ist recipients (For mailing list rooms)\n"
+" <.> <A>dmin mailing list <D>igest recipients (For mailing list rooms)\n"
+" <.> <A>dmin <N>etwork room sharing (Replication with other Citadels)\n"
+" \n"
+" In addition, the <M>ove and <D>elete commands are available at the\n"
+"message prompt.\n"
+
+,
+
+" Floors\n"
+" ------\n"
+" Floors in Citadel are used to group rooms into related subject areas,\n"
+"just as rooms are used to group messages into manageable groups.\n"
+" \n"
+" You, as a user, do NOT have to use floors. If you choose not to, you suffer\n"
+"no penalty; you will not lose access to any rooms. You may use .EC or ;C (the\n"
+"latter is easier to use) to decide if you want to use floors. Feel free to\n"
+"experiment.\n"
+" \n"
+" Floor options are accessed two ways. First, if you are in floor mode, the\n"
+"<G>oto and <S>kip commands take you to the next room with new messages on the\n"
+"current floor; if there are none left, then the system will automatically\n"
+"switch floors (and let you know) and put you in the first room with new messages\n"
+"on that level. (Notice that your pattern of basic use of Citadel therefore\n"
+"doesn't really change.)\n"
+" \n"
+" Direct access to floor options is via the use of a ';' command.\n"
+"The following commands are currently available (more can be\n"
+"added if needed):\n"
+" \n"
+" <;C>onfigure\n"
+" This command toggles your floor mode.\n"
+" \n"
+" <;G>oto FLOORNAME\n"
+" This command causes the system to take you to the named floor.\n"
+" \n"
+" <;K>nown rooms on floors\n"
+" List all rooms on all floors. This is a very readable way to get a list of\n"
+"all rooms on the system.\n"
+" \n"
+" <;S>kip FLOORNAME\n"
+" This command causes the system to mark all rooms on the current floor as\n"
+"Skipped and takes you to the floor that you specify.\n"
+" \n"
+" <;Z>Forget floor\n"
+" This command causes you to forget all the rooms currently on the current\n"
+"floor. Unfortunately, it doesn't apply to rooms that are subsequently created\n"
+"or moved to this floor. (Sorry.)\n"
+" \n"
+" Feel free to experiment, you can't hurt yourself or the system with the\n"
+"floor stuff unless you ZForget a floor by accident.\n"
+
+,
+
+" New User's Introduction to the site\n"
+" \n"
+" This is an introduction to the Citadel BBS concept. It is intended\n"
+"for new users so that they can more easily become acquainted to using\n"
+"Citadel when accessing it in the form of a text-based BBS. Of\n"
+"course, old users might learn something new each time they read\n"
+"through it.\n"
+" \n"
+" Full help for the BBS commands can be obtained by typing <.H>elp SUMMARY\n"
+" \n"
+" The CITADEL BBS room concept\n"
+" ----------------------------\n"
+" The term BBS stands for 'Bulletin Board System'. The analogy is\n"
+"appropriate: one posts messages so that others may read them. In\n"
+"order to organize the posts, people can post in different areas of the\n"
+"BBS, called rooms.\n"
+" In order to post in a certain room, you need to be 'in' that room.\n"
+"Your current prompt is usually the room that you are in, followed the\n"
+"greater-than-sign, such as:\n"
+" \n"
+" Lobby>\n"
+" \n"
+" The easiest way to traverse the room structure is with the 'Goto'\n"
+"command, on the 'G' key. Pressing 'G' will take you to the next room\n"
+"in the 'march list' (see below) that has new messages in it. You can\n"
+"read these new messages with the 'N' key.\n"
+" Once you've 'Gotoed' every room in the system (or all of the ones\n"
+"you choose to read) you return to the 'Lobby,' the first and last room\n"
+"in the system. If new messages get posted to rooms you've already\n"
+"read during your session you will be brought BACK to those rooms so\n"
+"you can read them.\n"
+" \n"
+" March List\n"
+" ----------\n"
+" All the room names are stored in a march list, which is just a\n"
+"list containing all the room names. When you <G>oto or <S>kip a\n"
+"room, you are placed in the next room in your march list THAT HAS NEW\n"
+"MESSAGES. If you have no new messages in any of the rooms on your\n"
+"march list, you will keep going to the Lobby>. You can choose not to\n"
+"read certain rooms (that don't interest you) by 'Z'apping them. When\n"
+"you <Z>ap a room, you are merely deleting it from your march list (but\n"
+"not from anybody else's).\n"
+" \n"
+" You can use the <.G>oto (note the period before the G. You can also use\n"
+"<J>ump on some systems) to go to any room in the\n"
+"system. You don't have to type in the complete name of a room to\n"
+"'jump' to it; you merely need to type in enough to distinguish it from\n"
+"the other rooms. Left-aligned matches carry a heavier weight, so if you\n"
+"typed (for example) '.Goto TECH', you might be taken to a room called\n"
+"'Tech Area>' even if it found a room called 'Biotech/Ethics>' first.\n"
+" \n"
+" To return to a room you have previously <Z>apped, use the <.G>oto command\n"
+"to enter it, and it will be re-inserted into your march list. In the case\n"
+"of returning to Zapped rooms, you must type the room name in its entirety.\n"
+"REMEMBER, rooms with no new messages will not show on your\n"
+"march list! You must <.G>oto to a room with no new messages.\n"
+"Incidentally, you cannot change the order of the rooms on your march list.\n"
+"It's the same for everybody.\n"
+" \n"
+" Special rooms\n"
+" -------------\n"
+" There are two special rooms on a Citadel that you should know about.\n"
+" \n"
+" The first is the Lobby>. It's used for system announcements and other\n"
+"such administrativia. You cannot <Z>ap the Lobby>. Each time you first\n"
+"login, you will be placed in the Lobby>.\n"
+" \n"
+" The second is Mail>. In Mail>, when you post a messages, you are\n"
+"prompted to enter the screen name of the person who you want to send the\n"
+"message to. Only the person who you send the message to can read the\n"
+"message. NO ONE else can read it, not even the admins. Mail> is the\n"
+"first room on the march list, and is un-<Z>appable, so you can be sure\n"
+"that the person will get the message.\n"
+" \n"
+" System admins\n"
+" -------------\n"
+" These people, along with the room admins, keep the site running smoothly.\n"
+"\n"
+" Among the many things that admins do are: create rooms, delete\n"
+"rooms, set access levels, invite users, check registration, grant\n"
+"room admin status, and countless other things. They have access to the\n"
+"Aide> room, a special room only for admins.\n"
+" \n"
+" If you enter a mail message to 'Sysop' it will be placed in the\n"
+"Aide> room so that the next admin online will read it and deal with it.\n"
+"Admins cannot <Z>ap rooms. All the rooms are always on each admin's\n"
+"march list. Admins can read *any* and *every* room, but they *CAN* *NOT*\n"
+"read other users' Mail!\n"
+" \n"
+" Room admins\n"
+" -----------\n"
+" Room admins are granted special privileges in specific rooms.\n"
+"They are *NOT* true system admins; their power extends only over the\n"
+"rooms that they control, and they answer to the system admins.\n"
+" \n"
+" A room admin's job is to keep the topic of the their room on track,\n"
+"with nudges in the right direction now and then. A room admin can also\n"
+"move an off topic post to another room, or delete a post, if he/she\n"
+"feels it is necessary. \n"
+" \n"
+" Currently, very few rooms have room admins. Most rooms do not need\n"
+"their own specific room admin. Being a room admin requires a certain\n"
+"amount of trust, due to the additional privileges granted.\n"
+" \n"
+" Citadel messages\n"
+" ----------------\n"
+" Most of the time, the BBS code does not print a lot of messages\n"
+"to your screen. This is a great benefit once you become familiar\n"
+"with the system, because you do not have endless menus and screens\n"
+"to navigate through. nevertheless, there are some messages which you\n"
+"might see from time to time.\n"
+" \n"
+" 'There were messages posted while you were entering.'\n"
+" \n"
+" This is also known as 'simulposting.' When you start entering a \n"
+"message, the system knows where you last left off. When you save\n"
+"your message, the system checks to see if any messages were entered\n"
+"while you were typing. This is so that you know whether you need\n"
+"to go back and re-read the last few messages. This message may appear\n"
+"in any room.\n"
+" \n"
+" '*** You have new mail'\n"
+" \n"
+" This message is essentially the same as the above message, but can\n"
+"appear at any time. It simply means that new mail has arrived for you while\n"
+"you are logged in. Simply go to the Mail> room to read it.\n"
+" \n"
+" Who list\n"
+" --------\n"
+" The <W>ho command shows you the names of all users who are currently\n"
+"online. It also shows you the name of the room they are currently in. If\n"
+"they are in any type of private room, however, the room name will simply\n"
+"display as '<private room>'. Along with this information is displayed the\n"
+"name of the host computer the user is logged in from.\n"
+
+,
+
+"To send mail on this system, go to the Mail> room (using the command .G Mail)\n"
+"and press E to enter a message. You will be prompted with:\n"
+" \n"
+" Enter Recipient:\n"
+" \n"
+" At this point you may enter the name of another user on the system. Private\n"
+"mail is only readable by the sender and recipient. There is no need to delete\n"
+"mail after it is read; it will scroll out automatically.\n"
+" \n"
+" To send mail to another user on the Citadel network, simply type the\n"
+"user's name, followed by @ and then the system name. For example,\n"
+" \n"
+" Enter Recipient: Joe Schmoe @ citadrool\n"
+" \n"
+" If your account is enabled for Internet mail, you can also send email to\n"
+"anyone on the Internet here. Simply enter their address at the prompt:\n"
+" \n"
+" Enter Recipient: ajc@herring.fishnet.com\n"
+
+,
+
+" Welcome to the network. Messages entered in a network room will appear in\n"
+"that room on all other systems carrying it (The name of the room, however,\n"
+"may be different on other systems).\n"
+
+,
+
+" Citadel is the premier 'online community' (i.e. Bulletin Board System)\n"
+"software. It runs on all POSIX-compliant systems, including Linux. It is an\n"
+"advanced client/server application, and is being actively maintained.\n"
+" \n"
+" For more info, visit UNCENSORED! BBS at uncensored.citadel.org\n"
+
+,
+
+"Extended commands are available using the period ( . ) key. To use\n"
+"a dot command, press the . key, and then enter the first letter of\n"
+"each word in the command. The words will appear as you enter the keys.\n"
+"You can also backspace over partially entered commands. The following\n"
+"commands are available:\n"
+"\n"
+" <.> <H>elp: Displays help files. Type .H followed by a help file\n"
+" name. You are now reading <.H>elp SUMMARY\n"
+" \n"
+" <.> <G>oto: Jumps directly to the room you specify. You can also\n"
+" type a partial room name, just enough to make it unique,\n"
+" and it'll find the room you're looking for. As with the\n"
+" regular <G>oto command, messages in the current room will\n"
+" be marked as read.\n"
+" \n"
+" <.> <S>kip, goto: This is similar to <.G>oto, except it doesn't mark\n"
+" messages in the current room as read.\n"
+" \n"
+" <.> list <Z>apped rooms Shows all rooms you've <Z>apped (forgotten)\n"
+"\n"
+" \n"
+" Terminate (logoff) commands:\n"
+" \n"
+" <.> <T>erminate and <Q>uit Log off and disconnect.\n"
+" <.> <T>erminate and <S>tay online Log in as a different user.\n"
+" \n"
+" \n"
+" Read commands:\n"
+"\n"
+" <.> <R>ead <N>ew messages Same as <N>ew\n"
+" <.> <R>ead <O>ld msgs reverse Same as <O>ld\n"
+" <.> <R>ead <L>ast five msgs Same as <L>ast5\n"
+" <.> read <L>ast: Allows you to specify how many\n"
+" messages you wish to read.\n"
+"\n"
+" <.> <R>ead <U>ser listing: Lists all users on the system if\n"
+" you just hit enter, otherwise\n"
+" you can specify a partial match\n"
+"\n"
+" <.> <R>ead <T>extfile formatted File 'download' commands.\n"
+" <.> <R>ead file using <X>modem \n"
+" <.> <R>ead file using <Y>modem \n"
+" <.> <R>ead file using <Z>modem \n"
+" <.> <R>ead <F>ile unformatted \n"
+" <.> <R>ead <D>irectory \n"
+"\n"
+" <.> <R>ead <I>nfo file Read the room info file.\n"
+" <.> <R>ead <B>io Read other users' 'bio' files.\n"
+" <.> <R>ead <C>onfiguration Display your 'preferences'.\n"
+" <.> <R>ead <S>ystem info Display system statistics.\n"
+"\n"
+" \n"
+" Enter commands:\n"
+"\n"
+" <.> <E>nter <M>essage Post a message in this room.\n"
+" <.> <E>nter message with <E>ditor Post using a full-screen editor.\n"
+" <.> <E>nter <A>SCII message Post 'raw' (use this when 'pasting'\n"
+" a message from your clipboard).\n"
+"\n"
+" <.> <E>nter <P>assword Change your password.\n"
+" <.> <E>nter <C>onfiguration Change your 'preferences'.\n"
+" <.> <E>nter a new <R>oom Create a new room.\n"
+" <.> <E>nter re<G>istration Register (name, address, etc.)\n"
+" <.> <E>nter <B>io Enter/change your 'bio' file.\n"
+"\n"
+" <.> <E>nter <T>extfile File 'upload' commands.\n"
+" <.> <E>nter file using <X>modem \n"
+" <.> <E>nter file using <Y>modem \n"
+" <.> <E>nter file using <Z>modem \n"
+" \n"
+" \n"
+" Wholist commands:\n"
+" \n"
+" <.> <W>holist <L>ong Same as <W>ho is online, but displays\n"
+" more detailed information.\n"
+" <.> <W>holist <R>oomname Masquerade your room name (other users\n"
+" see the name you enter rather than the\n"
+" actual name of the room you're in)\n"
+" <.> <W>holist <H>ostname Masquerade your host name\n"
+" <.> <E>nter <U>sername Masquerade your user name (Admins only)\n"
+" <.> <W>holist <S>tealth mode Enter/exit 'stealth mode' (when in stealth\n"
+" mode you are invisible on the wholist)\n"
+" \n"
+" \n"
+" Floor commands (if using floor mode)\n"
+" ;<C>onfigure floor mode - turn floor mode on or off\n"
+" ;<G>oto floor: - jump to a specific floor\n"
+" ;<K>nown rooms - list all rooms on all floors\n"
+" ;<S>kip to floor: - skip current floor, jump to another\n"
+" ;<Z>ap floor - zap (forget) all rooms on this floor\n"
+" \n"
+" \n"
+" Administrative commands: \n"
+" \n"
+" <.> <A>dmin <K>ill this room \n"
+" <.> <A>dmin <E>dit this room \n"
+" <.> <A>dmin <W>ho knows room \n"
+" <.> <A>dmin edit <U>ser \n"
+" <.> <A>dmin <V>alidate new users \n"
+" <.> <A>dmin enter <I>nfo file \n"
+" <.> <A>dmin <R>oom <I>nvite user \n"
+" <.> <A>dmin <R>oom <K>ick out user \n"
+" <.> <A>dmin <F>ile <D>elete \n"
+" <.> <A>dmin <F>ile <S>end over net \n"
+" <.> <A>dmin <F>ile <M>ove \n"
+" <.> <A>dmin <M>essage edit: \n"
+" <.> <A>dmin <P>ost \n"
+" <.> <A>dmin <S>ystem configuration \n"
+" <.> <A>dmin <T>erminate server <N>ow\n"
+" <.> <A>dmin <T>erminate server <S>cheduled\n"
+
+};
+
+
+struct citcmd {
+ struct citcmd *next;
+ int c_cmdnum;
+ int c_axlevel;
+ char c_keys[5][64];
+};
+
+#define IFNEXPERT if ((userflags&US_EXPERT)==0)
+
+
+int rc_exp_beep;
+char rc_exp_cmd[1024];
+int rc_allow_attachments;
+int rc_display_message_numbers;
+int rc_force_mail_prompts;
+int rc_remember_passwords;
+int rc_ansi_color;
+int rc_color_use_bg;
+int rc_prompt_control = 0;
+time_t rc_idle_threshold = (time_t)900;
+char rc_url_cmd[SIZ];
+char rc_open_cmd[SIZ];
+char rc_gotmail_cmd[SIZ];
+
+int next_lazy_cmd = 5;
+
+extern int screenwidth, screenheight;
+extern int termn8;
+extern CtdlIPC *ipc_for_signal_handlers; /* KLUDGE cover your eyes */
+
+struct citcmd *cmdlist = NULL;
+
+
+/* these variables are local to this module */
+char keepalives_enabled = KA_YES; /* send NOOPs to server when idle */
+int ok_to_interrupt = 0; /* print instant msgs asynchronously */
+time_t AnsiDetect; /* when did we send the detect code? */
+int enable_color = 0; /* nonzero for ANSI color */
+
+
+
+
+/*
+ * If an interesting key has been pressed, return its value, otherwise 0
+ */
+char was_a_key_pressed(void) {
+ fd_set rfds;
+ struct timeval tv;
+ int the_character;
+ int retval;
+
+ FD_ZERO(&rfds);
+ FD_SET(0, &rfds);
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+ retval = select(1, &rfds, NULL, NULL, &tv);
+
+ /* Careful! Disable keepalives during keyboard polling; we're probably
+ * in the middle of a data transfer from the server, in which case
+ * sending a NOOP would throw the client protocol out of sync.
+ */
+ if ((retval > 0) && FD_ISSET(0, &rfds)) {
+ set_keepalives(KA_NO);
+ the_character = inkey();
+ set_keepalives(KA_YES);
+ }
+ else {
+ the_character = 0;
+ }
+ return(the_character);
+}
+
+
+
+
+
+/*
+ * print_instant() - print instant messages if there are any
+ */
+void print_instant(void)
+{
+ char buf[1024];
+ FILE *outpipe;
+ time_t timestamp;
+ struct tm stamp;
+ int flags = 0;
+ char sender[64];
+ char node[64];
+ char *listing = NULL;
+ int r; /* IPC result code */
+
+ if (instant_msgs == 0)
+ return;
+
+ if (rc_exp_beep) {
+ ctdl_beep();
+ }
+ if (IsEmptyStr(rc_exp_cmd)) {
+ color(BRIGHT_RED);
+ scr_printf("\r---");
+ }
+
+ while (instant_msgs != 0) {
+ r = CtdlIPCGetInstantMessage(ipc_for_signal_handlers, &listing, buf);
+ if (r / 100 != 1)
+ return;
+
+ instant_msgs = extract_int(buf, 0);
+ timestamp = extract_long(buf, 1);
+ flags = extract_int(buf, 2);
+ extract_token(sender, buf, 3, '|', sizeof sender);
+ extract_token(node, buf, 4, '|', sizeof node);
+ strcpy(last_paged, sender);
+
+ localtime_r(×tamp, &stamp);
+
+ /* If the page is a Logoff Request, honor it. */
+ if (flags & 2) {
+ termn8 = 1;
+ return;
+ }
+
+ if (!IsEmptyStr(rc_exp_cmd)) {
+ outpipe = popen(rc_exp_cmd, "w");
+ if (outpipe != NULL) {
+ /* Header derived from flags */
+ if (flags & 2)
+ fprintf(outpipe,
+ "Please log off now, as requested ");
+ else if (flags & 1)
+ fprintf(outpipe, "Broadcast message ");
+ else if (flags & 4)
+ fprintf(outpipe, "Chat request ");
+ else
+ fprintf(outpipe, "Message ");
+ /* Timestamp. Can this be improved? */
+ if (stamp.tm_hour == 0 || stamp.tm_hour == 12)
+ fprintf(outpipe, "at 12:%02d%cm",
+ stamp.tm_min,
+ stamp.tm_hour ? 'p' : 'a');
+ else if (stamp.tm_hour > 12) /* pm */
+ fprintf(outpipe, "at %d:%02dpm",
+ stamp.tm_hour - 12,
+ stamp.tm_min);
+ else /* am */
+ fprintf(outpipe, "at %d:%02dam",
+ stamp.tm_hour, stamp.tm_min);
+ fprintf(outpipe, " from %s", sender);
+ if (strncmp(ipc_for_signal_handlers->ServInfo.nodename, node, 32))
+ fprintf(outpipe, " @%s", node);
+ fprintf(outpipe, ":\n%s\n", listing);
+ pclose(outpipe);
+ if (instant_msgs == 0)
+ return;
+ continue;
+ }
+ }
+ /* fall back to built-in instant message display */
+ scr_printf("\n");
+
+ /* Header derived from flags */
+ if (flags & 2)
+ scr_printf("Please log off now, as requested ");
+ else if (flags & 1)
+ scr_printf("Broadcast message ");
+ else if (flags & 4)
+ scr_printf("Chat request ");
+ else
+ scr_printf("Message ");
+
+ /* Timestamp. Can this be improved? */
+ if (stamp.tm_hour == 0 || stamp.tm_hour == 12)/* 12am/12pm */
+ scr_printf("at 12:%02d%cm", stamp.tm_min,
+ stamp.tm_hour ? 'p' : 'a');
+ else if (stamp.tm_hour > 12) /* pm */
+ scr_printf("at %d:%02dpm",
+ stamp.tm_hour - 12, stamp.tm_min);
+ else /* am */
+ scr_printf("at %d:%02dam", stamp.tm_hour, stamp.tm_min);
+
+ /* Sender */
+ scr_printf(" from %s", sender);
+
+ /* Remote node, if any */
+ if (strncmp(ipc_for_signal_handlers->ServInfo.nodename, node, 32))
+ scr_printf(" @%s", node);
+
+ scr_printf(":\n");
+ fmout(screenwidth, NULL, listing, NULL, 0);
+ free(listing);
+
+ }
+ scr_printf("\n---\n");
+ color(BRIGHT_WHITE);
+
+
+}
+
+
+void set_keepalives(int s)
+{
+ keepalives_enabled = (char) s;
+}
+
+/*
+ * This loop handles the "keepalive" messages sent to the server when idling.
+ */
+
+static time_t idlet = 0;
+static void really_do_keepalive(void) {
+
+ time(&idlet);
+
+ /* This may sometimes get called before we are actually connected
+ * to the server. Don't do anything if we aren't connected. -IO
+ */
+ if (!ipc_for_signal_handlers)
+ return;
+
+ /* If full keepalives are enabled, send a NOOP to the server and
+ * wait for a response.
+ */
+ if (keepalives_enabled == KA_YES) {
+ CtdlIPCNoop(ipc_for_signal_handlers);
+ if (instant_msgs > 0) {
+ if (ok_to_interrupt == 1) {
+ scr_printf("\r%64s\r", "");
+ print_instant();
+ scr_printf("%s%c ", room_name,
+ room_prompt(room_flags));
+ scr_flush();
+ }
+ }
+ }
+
+ /* If half keepalives are enabled, send a QNOP to the server (if the
+ * server supports it) and then do nothing.
+ */
+ if ( (keepalives_enabled == KA_HALF)
+ && (ipc_for_signal_handlers->ServInfo.supports_qnop > 0) ) {
+ CtdlIPC_chat_send(ipc_for_signal_handlers, "QNOP");
+ }
+}
+
+/* I changed this from static to not because I need to call it from
+ * screen.c, either that or make something in screen.c not static.
+ * Fix it how you like. Why all the staticness? stu
+ */
+void do_keepalive(void)
+{
+ time_t now;
+
+ time(&now);
+ if ((now - idlet) < ((long) S_KEEPALIVE))
+ {
+ return;
+ }
+
+ /* Do a space-backspace to keep terminal sessions from idling out */
+ scr_printf(" %c", 8);
+ scr_flush();
+
+ really_do_keepalive();
+}
+
+
+
+int inkey(void)
+{ /* get a character from the keyboard, with */
+ int a; /* the watchdog timer in effect if necessary */
+ fd_set rfds;
+ struct timeval tv;
+ time_t start_time;
+
+ scr_flush();
+ time(&start_time);
+
+ do {
+ /* This loop waits for keyboard input. If the keepalive
+ * timer expires, it sends a keepalive to the server if
+ * necessary and then waits again.
+ */
+ do {
+ do_keepalive();
+
+ FD_ZERO(&rfds);
+ FD_SET(0, &rfds);
+ tv.tv_sec = S_KEEPALIVE;
+ tv.tv_usec = 0;
+
+ select(1, &rfds, NULL, NULL, &tv);
+ } while (!FD_ISSET(0, &rfds));
+
+ /* At this point, there's input, so fetch it.
+ * (There's a hole in the bucket...)
+ */
+ a = scr_getc(SCR_BLOCK);
+ if (a == 127) {
+ a = 8;
+ }
+ if (a == 13) {
+ a = 10;
+ }
+ } while (a == 0);
+ return (a);
+}
+
+
+int yesno(void)
+{ /* Returns 1 for yes, 0 for no */
+ int a;
+ while (1) {
+ a = inkey();
+ a = tolower(a);
+ if (a == 'y') {
+ scr_printf("Yes\n");
+ return (1);
+ }
+ if (a == 'n') {
+ scr_printf("No\n");
+ return (0);
+ }
+ }
+}
+
+/* Returns 1 for yes, 0 for no, arg is default value */
+int yesno_d(int d)
+{
+ int a;
+ while (1) {
+ a = inkey();
+ a = tolower(a);
+ if (a == 10)
+ a = (d ? 'y' : 'n');
+ if (a == 'y') {
+ scr_printf("Yes\n");
+ return (1);
+ }
+ if (a == 'n') {
+ scr_printf("No\n");
+ return (0);
+ }
+ }
+}
+
+
+
+
+/*
+ * Function to read a line of text from the terminal.
+ *
+ * string Pointer to string buffer
+ * lim Maximum length
+ * noshow Echo asterisks instead of keystrokes?
+ * bs Allow backspacing out of the prompt? (returns -1 if this happens)
+ *
+ * returns: string length
+ */
+int ctdl_getline(char *string, int lim, int noshow, int bs)
+{
+ int pos = strlen(string);
+ int ch;
+
+ if (noshow && !IsEmptyStr(string)) {
+ int num_stars = strlen(string);
+ while (num_stars--) {
+ scr_putc('*');
+ }
+ }
+ else {
+ scr_printf("%s", string);
+ }
+
+ while(1) {
+ ch = inkey();
+
+ if ((ch == 8) && (pos > 0)) { /* backspace */
+ --pos;
+ scr_putc(8); scr_putc(32); scr_putc(8);
+ }
+
+ else if ((ch == 8) && (pos == 0) && (bs)) { /* backspace out of the prompt */
+ return(-1);
+ }
+
+ else if ((ch == 23) && (pos > 0)) { /* Ctrl-W deletes a word */
+ while ((pos > 0) && !isspace(string[pos])) {
+ --pos;
+ scr_putc(8); scr_putc(32); scr_putc(8);
+ }
+ while ((pos > 0) && !isspace(string[pos-1])) {
+ --pos;
+ scr_putc(8); scr_putc(32); scr_putc(8);
+ }
+ }
+
+ else if (ch == 10) { /* return */
+ string[pos] = 0;
+ scr_printf("\n");
+ return(pos);
+ }
+
+ else if (isprint(ch)) { /* payload characters */
+ scr_putc((noshow ? '*' : ch));
+ string[pos] = ch;
+ ++pos;
+ }
+ }
+}
+
+
+/*
+ * newprompt() prompt for a string, print the existing value, and
+ * allow the user to press return to keep it...
+ * If len is negative, pass the "noshow" flag to ctdl_getline()
+ */
+void strprompt(char *prompt, char *str, int len)
+{
+ print_instant();
+ color(DIM_WHITE);
+ scr_printf("%s", prompt);
+ color(DIM_WHITE);
+ scr_printf(": ");
+ color(BRIGHT_CYAN);
+ ctdl_getline(str, abs(len), (len<0), 0);
+ color(DIM_WHITE);
+}
+
+/*
+ * boolprompt() - prompt for a yes/no, print the existing value and
+ * allow the user to press return to keep it...
+ */
+int boolprompt(char *prompt, int prev_val)
+{
+ int r;
+
+ color(DIM_WHITE);
+ scr_printf("%s ", prompt);
+ color(DIM_MAGENTA);
+ scr_printf("[");
+ color(BRIGHT_MAGENTA);
+ scr_printf("%s", (prev_val ? "Yes" : "No"));
+ color(DIM_MAGENTA);
+ scr_printf("]: ");
+ color(BRIGHT_CYAN);
+ r = (yesno_d(prev_val));
+ color(DIM_WHITE);
+ return r;
+}
+
+/*
+ * intprompt() - like strprompt(), except for an integer
+ * (note that it RETURNS the new value!)
+ */
+int intprompt(char *prompt, int ival, int imin, int imax)
+{
+ char buf[16];
+ int i;
+ int p;
+
+ do {
+ i = ival;
+ snprintf(buf, sizeof buf, "%d", i);
+ strprompt(prompt, buf, 15);
+ i = atoi(buf);
+ for (p=0; !IsEmptyStr(&buf[p]); ++p) {
+ if ( (!isdigit(buf[p]))
+ && ( (buf[p]!='-') || (p!=0) ) )
+ i = imin - 1;
+ }
+ if (i < imin)
+ scr_printf("*** Must be no less than %d.\n", imin);
+ if (i > imax)
+ scr_printf("*** Must be no more than %d.\n", imax);
+ } while ((i < imin) || (i > imax));
+ return (i);
+}
+
+/*
+ * newprompt() prompt for a string with no existing value
+ * (clears out string buffer first)
+ * If len is negative, pass the "noshow" flag to ctdl_getline()
+ */
+void newprompt(char *prompt, char *str, int len)
+{
+ str[0] = 0;
+ color(BRIGHT_MAGENTA);
+ scr_printf("%s", prompt);
+ color(DIM_MAGENTA);
+ ctdl_getline(str, abs(len), (len<0), 0);
+ color(DIM_WHITE);
+}
+
+
+int lkey(void)
+{ /* returns a lower case value */
+ int a;
+ a = inkey();
+ if (isupper(a))
+ a = tolower(a);
+ return (a);
+}
+
+/*
+ * parse the citadel.rc file
+ */
+void load_command_set(void)
+{
+ FILE *ccfile;
+ char buf[1024];
+ struct citcmd *cptr;
+ struct citcmd *lastcmd = NULL;
+ int a, d;
+ int b = 0;
+
+ /* first, set up some defaults for non-required variables */
+
+ strcpy(editor_path, "");
+ strcpy(printcmd, "");
+ strcpy(imagecmd, "");
+ strcpy(rc_username, "");
+ strcpy(rc_password, "");
+ rc_floor_mode = 0;
+ rc_exp_beep = 1;
+ rc_allow_attachments = 0;
+ rc_remember_passwords = 0;
+ strcpy(rc_exp_cmd, "");
+ rc_display_message_numbers = 0;
+ rc_force_mail_prompts = 0;
+ rc_ansi_color = 0;
+ rc_color_use_bg = 0;
+ strcpy(rc_url_cmd, "");
+ strcpy(rc_open_cmd, "");
+ strcpy(rc_gotmail_cmd, "");
+#ifdef HAVE_OPENSSL
+ rc_encrypt = RC_DEFAULT;
+#endif
+
+ /* now try to open the citadel.rc file */
+
+ ccfile = NULL;
+ if (getenv("HOME") != NULL) {
+ snprintf(buf, sizeof buf, "%s/.citadelrc", getenv("HOME"));
+ ccfile = fopen(buf, "r");
+ }
+ if (ccfile == NULL) {
+ ccfile = fopen(file_citadel_rc, "r");
+ }
+ if (ccfile == NULL) {
+ ccfile = fopen("/etc/citadel.rc", "r");
+ }
+ if (ccfile == NULL) {
+ ccfile = fopen("./citadel.rc", "r");
+ }
+ if (ccfile == NULL) {
+ perror("commands: cannot open citadel.rc");
+ logoff(NULL, 3);
+ }
+ while (fgets(buf, sizeof buf, ccfile) != NULL) {
+ while ((!IsEmptyStr(buf)) ? (isspace(buf[strlen(buf) - 1])) : 0)
+ buf[strlen(buf) - 1] = 0;
+
+ if (!strncasecmp(buf, "encrypt=", 8)) {
+ if (!strcasecmp(&buf[8], "yes")) {
+#ifdef HAVE_OPENSSL
+ rc_encrypt = RC_YES;
+#else
+ fprintf(stderr, "citadel.rc requires encryption support but citadel is not compiled with OpenSSL");
+ logoff(NULL, 3);
+#endif
+ }
+#ifdef HAVE_OPENSSL
+ else if (!strcasecmp(&buf[8], "no")) {
+ rc_encrypt = RC_NO;
+ }
+ else if (!strcasecmp(&buf[8], "default")) {
+ rc_encrypt = RC_DEFAULT;
+ }
+#endif
+ }
+
+ if (!strncasecmp(buf, "editor=", 7)) {
+ strcpy(editor_path, &buf[7]);
+ }
+
+ if (!strncasecmp(buf, "printcmd=", 9))
+ strcpy(printcmd, &buf[9]);
+
+ if (!strncasecmp(buf, "imagecmd=", 9))
+ strcpy(imagecmd, &buf[9]);
+
+ if (!strncasecmp(buf, "expcmd=", 7))
+ strcpy(rc_exp_cmd, &buf[7]);
+
+ if (!strncasecmp(buf, "use_floors=", 11)) {
+ if (!strcasecmp(&buf[11], "yes"))
+ rc_floor_mode = RC_YES;
+ if (!strcasecmp(&buf[11], "no"))
+ rc_floor_mode = RC_NO;
+ if (!strcasecmp(&buf[11], "default"))
+ rc_floor_mode = RC_DEFAULT;
+ }
+ if (!strncasecmp(buf, "beep=", 5)) {
+ rc_exp_beep = atoi(&buf[5]);
+ }
+ if (!strncasecmp(buf, "allow_attachments=", 18)) {
+ rc_allow_attachments = atoi(&buf[18]);
+ }
+ if (!strncasecmp(buf, "idle_threshold=", 15)) {
+ rc_idle_threshold = atol(&buf[15]);
+ }
+ if (!strncasecmp(buf, "remember_passwords=", 19)) {
+ rc_remember_passwords = atoi(&buf[19]);
+ }
+ if (!strncasecmp(buf, "display_message_numbers=", 24)) {
+ rc_display_message_numbers = atoi(&buf[24]);
+ }
+ if (!strncasecmp(buf, "force_mail_prompts=", 19)) {
+ rc_force_mail_prompts = atoi(&buf[19]);
+ }
+ if (!strncasecmp(buf, "ansi_color=", 11)) {
+ if (!strncasecmp(&buf[11], "on", 2))
+ rc_ansi_color = 1;
+ if (!strncasecmp(&buf[11], "auto", 4))
+ rc_ansi_color = 2; /* autodetect */
+ if (!strncasecmp(&buf[11], "user", 4))
+ rc_ansi_color = 3; /* user config */
+ }
+ if (!strncasecmp(buf, "status_line=", 12)) {
+ if (!strncasecmp(&buf[12], "on", 2))
+ enable_status_line = 1;
+ }
+ if (!strncasecmp(buf, "use_background=", 15)) {
+ if (!strncasecmp(&buf[15], "on", 2))
+ rc_color_use_bg = 9;
+ }
+ if (!strncasecmp(buf, "prompt_control=", 15)) {
+ if (!strncasecmp(&buf[15], "on", 2))
+ rc_prompt_control = 1;
+ if (!strncasecmp(&buf[15], "user", 4))
+ rc_prompt_control = 3; /* user config */
+ }
+ if (!strncasecmp(buf, "username=", 9))
+ strcpy(rc_username, &buf[9]);
+
+ if (!strncasecmp(buf, "password=", 9))
+ strcpy(rc_password, &buf[9]);
+
+ if (!strncasecmp(buf, "urlcmd=", 7))
+ strcpy(rc_url_cmd, &buf[7]);
+
+ if (!strncasecmp(buf, "opencmd=", 7))
+ strcpy(rc_open_cmd, &buf[8]);
+
+ if (!strncasecmp(buf, "gotmailcmd=", 11))
+ strcpy(rc_gotmail_cmd, &buf[11]);
+
+ if (!strncasecmp(buf, "cmd=", 4)) {
+ strcpy(buf, &buf[4]);
+
+ cptr = (struct citcmd *) malloc(sizeof(struct citcmd));
+
+ cptr->c_cmdnum = atoi(buf);
+ for (d = strlen(buf); d >= 0; --d)
+ if (buf[d] == ',')
+ b = d;
+ strcpy(buf, &buf[b + 1]);
+
+ cptr->c_axlevel = atoi(buf);
+ for (d = strlen(buf); d >= 0; --d)
+ if (buf[d] == ',')
+ b = d;
+ strcpy(buf, &buf[b + 1]);
+
+ for (a = 0; a < 5; ++a)
+ cptr->c_keys[a][0] = 0;
+
+ a = 0;
+ b = 0;
+ buf[strlen(buf) + 1] = 0;
+ while (!IsEmptyStr(buf)) {
+ b = strlen(buf);
+ for (d = strlen(buf); d >= 0; --d)
+ if (buf[d] == ',')
+ b = d;
+ strncpy(cptr->c_keys[a], buf, b);
+ cptr->c_keys[a][b] = 0;
+ if (buf[b] == ',')
+ strcpy(buf, &buf[b + 1]);
+ else
+ strcpy(buf, "");
+ ++a;
+ }
+
+ cptr->next = NULL;
+ if (cmdlist == NULL)
+ cmdlist = cptr;
+ else
+ lastcmd->next = cptr;
+ lastcmd = cptr;
+ }
+ }
+ fclose(ccfile);
+}
+
+
+
+/*
+ * return the key associated with a command
+ */
+char keycmd(char *cmdstr)
+{
+ int a;
+
+ for (a = 0; !IsEmptyStr(&cmdstr[a]); ++a)
+ if (cmdstr[a] == '&')
+ return (tolower(cmdstr[a + 1]));
+ return (0);
+}
+
+
+/*
+ * Output the string from a key command without the ampersand
+ * "mode" should be set to 0 for normal or 1 for <C>ommand key highlighting
+ */
+char *cmd_expand(char *strbuf, int mode)
+{
+ int a;
+ static char exp[64];
+ char buf[1024];
+
+ strcpy(exp, strbuf);
+
+ for (a = 0; exp[a]; ++a) {
+ if (strbuf[a] == '&') {
+
+ /* dont echo these non mnemonic command keys */
+ int noecho = strbuf[a+1] == '<' || strbuf[a+1] == '>' || strbuf[a+1] == '+' || strbuf[a+1] == '-';
+
+ if (mode == 0) {
+ strcpy(&exp[a], &exp[a + 1 + noecho]);
+ }
+ if (mode == 1) {
+ exp[a] = '<';
+ strcpy(buf, &exp[a + 2]);
+ exp[a + 2] = '>';
+ exp[a + 3] = 0;
+ strcat(exp, buf);
+ }
+ }
+ if (!strncmp(&exp[a], "^r", 2)) {
+ strcpy(buf, exp);
+ strcpy(&exp[a], room_name);
+ strcat(exp, &buf[a + 2]);
+ }
+ if (!strncmp(&exp[a], "^c", 2)) {
+ exp[a] = ',';
+ strcpy(&exp[a + 1], &exp[a + 2]);
+ }
+ }
+
+ return (exp);
+}
+
+
+
+/*
+ * Comparison function to determine if entered commands match a
+ * command loaded from the config file.
+ */
+int cmdmatch(char *cmdbuf, struct citcmd *cptr, int ncomp)
+{
+ int a;
+ int cmdax;
+
+ cmdax = 0;
+ if (is_room_aide)
+ cmdax = 1;
+ if (axlevel >= 6)
+ cmdax = 2;
+
+ for (a = 0; a < ncomp; ++a) {
+ if ((tolower(cmdbuf[a]) != keycmd(cptr->c_keys[a]))
+ || (cptr->c_axlevel > cmdax))
+ return (0);
+ }
+ return (1);
+}
+
+
+/*
+ * This function returns 1 if a given command requires a string input
+ */
+int requires_string(struct citcmd *cptr, int ncomp)
+{
+ int a;
+ char buf[64];
+
+ strcpy(buf, cptr->c_keys[ncomp - 1]);
+ for (a = 0; !IsEmptyStr(&buf[a]); ++a) {
+ if (buf[a] == ':')
+ return (1);
+ }
+ return (0);
+}
+
+
+/*
+ * Input a command at the main prompt.
+ * This function returns an integer command number. If the command prompts
+ * for a string then it is placed in the supplied buffer.
+ */
+int getcmd(CtdlIPC *ipc, char *argbuf)
+{
+ char cmdbuf[5];
+ int cmdspaces[5];
+ int cmdpos;
+ int ch;
+ int a;
+ int got;
+ int this_lazy_cmd;
+ struct citcmd *cptr;
+
+ /*
+ * Starting a new command now, so set sigcaught to 0. This variable
+ * is set to nonzero (usually NEXT_KEY or STOP_KEY) if a command has
+ * been interrupted by a keypress.
+ */
+ sigcaught = 0;
+
+ /* Switch color support on or off if we're in user mode */
+ if (rc_ansi_color == 3) {
+ if (userflags & US_COLOR)
+ enable_color = 1;
+ else
+ enable_color = 0;
+ }
+ /* if we're running in idiot mode, display a cute little menu */
+
+ IFNEXPERT {
+ scr_printf("-----------------------------------------------------------------------\n");
+ scr_printf("Room cmds: <K>nown rooms, <G>oto next room, <.G>oto a specific room,\n");
+ scr_printf(" <S>kip this room, <A>bandon this room, <Z>ap this room,\n");
+ scr_printf(" <U>ngoto (move back)\n");
+ scr_printf("Message cmds: <N>ew msgs, <F>orward read, <R>everse read, <O>ld msgs,\n");
+ scr_printf(" <L>ast five msgs, <E>nter a message\n");
+ scr_printf("General cmds: <?> help, <T>erminate, <C>hat, <W>ho is online\n");
+ scr_printf("Misc: <X> toggle eXpert mode, <D>irectory\n");
+ scr_printf("\n");
+ scr_printf(" (Type .Help SUMMARY for extended commands, <X> to hide this menu)\n");
+ scr_printf("-----------------------------------------------------------------------\n");
+ }
+
+ print_instant();
+ strcpy(argbuf, "");
+ cmdpos = 0;
+ for (a = 0; a < 5; ++a)
+ cmdbuf[a] = 0;
+ /* now the room prompt... */
+ ok_to_interrupt = 1;
+ color(BRIGHT_WHITE);
+ scr_printf("\n%s", room_name);
+ color(DIM_WHITE);
+ scr_printf("%c ", room_prompt(room_flags));
+
+ while (1) {
+ ch = inkey();
+ ok_to_interrupt = 0;
+
+ /* Handle the backspace key, but only if there's something
+ * to backspace over...
+ */
+ if ((ch == 8) && (cmdpos > 0)) {
+ back(cmdspaces[cmdpos - 1] + 1);
+ cmdbuf[cmdpos] = 0;
+ --cmdpos;
+ }
+ /* Spacebar invokes "lazy traversal" commands */
+ if ((ch == 32) && (cmdpos == 0)) {
+ this_lazy_cmd = next_lazy_cmd;
+ if (this_lazy_cmd == 13)
+ next_lazy_cmd = 5;
+ if (this_lazy_cmd == 5)
+ next_lazy_cmd = 13;
+ for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
+ if (cptr->c_cmdnum == this_lazy_cmd) {
+ for (a = 0; a < 5; ++a)
+ if (cptr->c_keys[a][0] != 0)
+ scr_printf("%s ", cmd_expand(
+ cptr->c_keys[a], 0));
+ scr_printf("\n");
+ return (this_lazy_cmd);
+ }
+ }
+ scr_printf("\n");
+ return (this_lazy_cmd);
+ }
+ /* Otherwise, process the command */
+ cmdbuf[cmdpos] = tolower(ch);
+
+ for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
+ if (cmdmatch(cmdbuf, cptr, cmdpos + 1)) {
+
+ scr_printf("%s", cmd_expand(cptr->c_keys[cmdpos], 0));
+ cmdspaces[cmdpos] = strlen(
+ cmd_expand(cptr->c_keys[cmdpos], 0));
+ if (cmdpos < 4)
+ if ((cptr->c_keys[cmdpos + 1]) != 0)
+ scr_putc(' ');
+ ++cmdpos;
+ }
+ }
+
+ for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
+ if (cmdmatch(cmdbuf, cptr, 5)) {
+ /* We've found our command. */
+ if (requires_string(cptr, cmdpos)) {
+ argbuf[0] = 0;
+ ctdl_getline(argbuf, 64, 0, 0);
+ } else {
+ scr_printf("\n");
+ }
+
+ /* If this command is one that changes rooms,
+ * then the next lazy-command (space bar)
+ * should be "read new" instead of "goto"
+ */
+ if ((cptr->c_cmdnum == 5)
+ || (cptr->c_cmdnum == 6)
+ || (cptr->c_cmdnum == 47)
+ || (cptr->c_cmdnum == 52)
+ || (cptr->c_cmdnum == 16)
+ || (cptr->c_cmdnum == 20))
+ next_lazy_cmd = 13;
+
+ /* If this command is "read new"
+ * then the next lazy-command (space bar)
+ * should be "goto"
+ */
+ if (cptr->c_cmdnum == 13)
+ next_lazy_cmd = 5;
+
+ return (cptr->c_cmdnum);
+
+ }
+ }
+
+ if (ch == '?') {
+ scr_printf("\rOne of ... \n");
+ for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
+ if (cmdmatch(cmdbuf, cptr, cmdpos)) {
+ for (a = 0; a < 5; ++a) {
+ keyopt(cmd_expand(cptr->c_keys[a], 1));
+ scr_printf(" ");
+ }
+ scr_printf("\n");
+ }
+ }
+ sigcaught = 0;
+
+ scr_printf("\n%s%c ", room_name, room_prompt(room_flags));
+ got = 0;
+ for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
+ if ((got == 0) && (cmdmatch(cmdbuf, cptr, cmdpos))) {
+ for (a = 0; a < cmdpos; ++a) {
+ scr_printf("%s ",
+ cmd_expand(cptr->c_keys[a], 0));
+ }
+ got = 1;
+ }
+ }
+ }
+ }
+
+}
+
+
+
+
+
+/*
+ * set tty modes. commands are:
+ *
+ * 01- set to Citadel mode
+ * 2 - save current settings for later restoral
+ * 3 - restore saved settings
+ */
+void stty_ctdl(int cmd)
+{ /* SysV version of stty_ctdl() */
+ struct termios live;
+ static struct termios saved_settings;
+ static int last_cmd = 0;
+
+ if (cmd == SB_LAST)
+ cmd = last_cmd;
+ else
+ last_cmd = cmd;
+
+ if ((cmd == 0) || (cmd == 1)) {
+ tcgetattr(0, &live);
+ live.c_iflag = ISTRIP | IXON | IXANY;
+ live.c_oflag = OPOST | ONLCR;
+ live.c_lflag = ISIG | NOFLSH;
+
+ live.c_cc[VINTR] = 0;
+ live.c_cc[VQUIT] = 0;
+
+ /* do we even need this stuff anymore? */
+ /* live.c_line=0; */
+ live.c_cc[VERASE] = 8;
+ live.c_cc[VKILL] = 24;
+ live.c_cc[VEOF] = 1;
+ live.c_cc[VEOL] = 255;
+ live.c_cc[VEOL2] = 0;
+ live.c_cc[VSTART] = 0;
+ tcsetattr(0, TCSADRAIN, &live);
+ }
+ if (cmd == 2) {
+ tcgetattr(0, &saved_settings);
+ }
+ if (cmd == 3) {
+ tcsetattr(0, TCSADRAIN, &saved_settings);
+ }
+
+}
+
+
+// this is the old version which uses sgtty.h instead of termios.h
+#if 0
+void stty_ctdl(int cmd)
+{ /* BSD version of stty_ctdl() */
+ struct sgttyb live;
+ static struct sgttyb saved_settings;
+ static int last_cmd = 0;
+
+ if (cmd == SB_LAST)
+ cmd = last_cmd;
+ else
+ last_cmd = cmd;
+
+ if ((cmd == 0) || (cmd == 1)) {
+ gtty(0, &live);
+ live.sg_flags |= CBREAK;
+ live.sg_flags |= CRMOD;
+ live.sg_flags |= NL1;
+ live.sg_flags &= ~ECHO;
+ if (cmd == 1)
+ live.sg_flags |= NOFLSH;
+ stty(0, &live);
+ }
+ if (cmd == 2) {
+ gtty(0, &saved_settings);
+ }
+ if (cmd == 3) {
+ stty(0, &saved_settings);
+ }
+}
+#endif
+
+
+/*
+ * display_help() - help text viewer
+ */
+void display_help(CtdlIPC *ipc, char *name)
+{
+ int i;
+ int num_helps = sizeof(helpnames) / sizeof(char *) ;
+
+ for (i=0; i<num_helps; ++i) {
+ if (!strcasecmp(name, helpnames[i])) {
+ fmout(screenwidth, NULL, helptexts[i], NULL, 0);
+ return;
+ }
+ }
+
+ scr_printf("'%s' not found. Enter one of:\n", name);
+ for (i=0; i<num_helps; ++i) {
+ scr_printf(" %s\n", helpnames[i]);
+ }
+}
+
+
+/*
+ * fmout() - Citadel text formatter and paginator
+ */
+int fmout(
+ int width, /* screen width to use */
+ FILE *fpin, /* file to read from, or NULL to format given text */
+ char *text, /* text to be formatted (when fpin is NULL */
+ FILE *fpout, /* file to write to, or NULL to write to screen */
+ int subst) /* nonzero if we should use hypertext mode */
+{
+ char *buffer = NULL; /* The current message */
+ char *word = NULL; /* What we are about to actually print */
+ char *e; /* Pointer to position in text */
+ char old = 0; /* The previous character */
+ int column = 0; /* Current column */
+ size_t i; /* Generic counter */
+
+ /* Space for a single word, which can be at most screenwidth */
+ word = (char *)calloc(1, width);
+ if (!word) {
+ scr_printf("Can't alloc memory to print message: %s!\n",
+ strerror(errno));
+ logoff(NULL, 3);
+ }
+
+ /* Read the entire message body into memory */
+ if (fpin) {
+ buffer = load_message_from_file(fpin);
+ if (!buffer) {
+ scr_printf("Can't print message: %s!\n",
+ strerror(errno));
+ logoff(NULL, 3);
+ }
+ } else {
+ buffer = text;
+ }
+ e = buffer;
+
+ /* Run the message body */
+ while (*e) {
+ /* Catch characters that shouldn't be there at all */
+ if (*e == '\r') {
+ e++;
+ continue;
+ }
+ /* First, are we looking at a newline? */
+ if (*e == '\n') {
+ e++;
+ if (*e == ' ') { /* Paragraph */
+ if (fpout) {
+ fprintf(fpout, "\n");
+ } else {
+ scr_printf("\n");
+ }
+ column = 0;
+ } else if (old != ' ') {/* Don't print two spaces */
+ if (fpout) {
+ fprintf(fpout, " ");
+ } else {
+ scr_printf(" ");
+ }
+ column++;
+ }
+ old = '\n';
+ continue;
+ }
+
+ /* Are we looking at a nonprintable?
+ * (This section is now commented out because we could be displaying
+ * a character set like UTF-8 or ISO-8859-1.)
+ if ( (*e < 32) || (*e > 126) ) {
+ e++;
+ continue;
+ } */
+
+ /* Or are we looking at a space? */
+ if (*e == ' ') {
+ e++;
+ if (column >= width - 1) {
+ /* Are we in the rightmost column? */
+ if (fpout) {
+ fprintf(fpout, "\n");
+ } else {
+ scr_printf("\n");
+ }
+ column = 0;
+ } else if (!(column == 0 && old == ' ')) {
+ /* Eat only the first space on a line */
+ if (fpout) {
+ fprintf(fpout, " ");
+ } else {
+ scr_printf(" ");
+ }
+ column++;
+ }
+ /* ONLY eat the FIRST space on a line */
+ old = ' ';
+ continue;
+ }
+ old = *e;
+
+ /* Read a word, slightly messy */
+ i = 0;
+ while (e[i]) {
+ if (!isprint(e[i]) && !isspace(e[i]))
+ e[i] = ' ';
+ if (isspace(e[i]))
+ break;
+ i++;
+ }
+
+ /* We should never see these, but... slightly messy */
+ if (e[i] == '\t' || e[i] == '\f' || e[i] == '\v')
+ e[i] = ' ';
+
+ /* Break up really long words */
+ /* TODO: auto-hyphenation someday? */
+ if (i >= width)
+ i = width - 1;
+ strncpy(word, e, i);
+ word[i] = 0;
+
+ /* Decide where to print the word */
+ if (column + i >= width) {
+ /* Wrap to the next line */
+ if (fpout) {
+ fprintf(fpout, "\n");
+ } else {
+ scr_printf("\n");
+ }
+ column = 0;
+ }
+
+ /* Print the word */
+ if (fpout) {
+ fprintf(fpout, "%s", word);
+ } else {
+ scr_printf("%s", word);
+ }
+ column += i;
+ e += i; /* Start over with the whitepsace! */
+ }
+
+ free(word);
+ if (fpin) /* We allocated this, remember? */
+ free(buffer);
+
+ /* Is this necessary? It makes the output kind of spacey. */
+ if (fpout) {
+ fprintf(fpout, "\n");
+ } else {
+ scr_printf("\n");
+ }
+
+ return sigcaught;
+}
+
+
+/*
+ * support ANSI color if defined
+ */
+void color(int colornum)
+{
+ static int hold_color;
+ static int current_color;
+
+ if (colornum == COLOR_PUSH) {
+ hold_color = current_color;
+ return;
+ }
+
+ if (colornum == COLOR_POP) {
+ color(hold_color);
+ return;
+ }
+
+ current_color = colornum;
+ if (enable_color) {
+ /* When switching to dim white, actually output an 'original
+ * pair' sequence -- this looks better on black-on-white
+ * terminals. - Changed to ORIGINAL_PAIR as this actually
+ * wound up looking horrible on black-on-white terminals, not
+ * to mention transparent terminals.
+ */
+ if (colornum == ORIGINAL_PAIR)
+ printf("\033[0;39;49m");
+ else
+ printf("\033[%d;3%d;4%dm",
+ (colornum & 8) ? 1 : 0,
+ (colornum & 7),
+ rc_color_use_bg);
+
+ }
+}
+
+void cls(int colornum)
+{
+ if (enable_color) {
+ printf("\033[4%dm\033[2J\033[H\033[0m",
+ colornum ? colornum : rc_color_use_bg);
+ }
+}
+
+
+/*
+ * Detect whether ANSI color is available (answerback)
+ */
+void send_ansi_detect(void)
+{
+ if (rc_ansi_color == 2) {
+ printf("\033[c");
+ scr_flush();
+ time(&AnsiDetect);
+ }
+}
+
+void look_for_ansi(void)
+{
+ fd_set rfds;
+ struct timeval tv;
+ char abuf[512];
+ time_t now;
+ int a, rv;
+
+ if (rc_ansi_color == 0) {
+ enable_color = 0;
+ } else if (rc_ansi_color == 1) {
+ enable_color = 1;
+ } else if (rc_ansi_color == 2) {
+
+ /* otherwise, do the auto-detect */
+
+ strcpy(abuf, "");
+
+ time(&now);
+ if ((now - AnsiDetect) < 2)
+ sleep(1);
+
+ do {
+ FD_ZERO(&rfds);
+ FD_SET(0, &rfds);
+ tv.tv_sec = 0;
+ tv.tv_usec = 1;
+
+ select(1, &rfds, NULL, NULL, &tv);
+ if (FD_ISSET(0, &rfds)) {
+ abuf[strlen(abuf) + 1] = 0;
+ rv = read(0, &abuf[strlen(abuf)], 1);
+ if (rv < 0) {
+ scr_printf("failed to read after select: %s",
+ strerror(errno));
+ break;
+ }
+ }
+ } while (FD_ISSET(0, &rfds));
+
+ for (a = 0; !IsEmptyStr(&abuf[a]); ++a) {
+ if ((abuf[a] == 27) && (abuf[a + 1] == '[')
+ && (abuf[a + 2] == '?')) {
+ enable_color = 1;
+ }
+ }
+ }
+}
+
+
+/*
+ * Display key options (highlight hotkeys inside angle brackets)
+ */
+void keyopt(char *buf) {
+ int i;
+
+ color(DIM_WHITE);
+ for (i=0; !IsEmptyStr(&buf[i]); ++i) {
+ if (buf[i]=='<') {
+ scr_printf("%c", buf[i]);
+ color(BRIGHT_MAGENTA);
+ } else {
+ if (buf[i]=='>'&& buf[i+1] != '>') {
+ color(DIM_WHITE);
+ }
+ scr_printf("%c", buf[i]);
+ }
+ }
+ color(DIM_WHITE);
+}
+
+
+
+/*
+ * Present a key-menu line choice type of thing
+ */
+char keymenu(char *menuprompt, char *menustring) {
+ int i, c, a;
+ int choices;
+ int do_prompt = 0;
+ char buf[1024];
+ int ch;
+ int display_prompt = 1;
+
+ choices = num_tokens(menustring, '|');
+
+ if (menuprompt != NULL) do_prompt = 1;
+ if ((menuprompt != NULL) && (IsEmptyStr(menuprompt))) do_prompt = 0;
+
+ while (1) {
+ if (display_prompt) {
+ if (do_prompt) {
+ scr_printf("%s ", menuprompt);
+ }
+ else {
+ for (i=0; i<choices; ++i) {
+ extract_token(buf, menustring, i, '|', sizeof buf);
+ keyopt(buf);
+ scr_printf(" ");
+ }
+ }
+ scr_printf("-> ");
+ display_prompt = 0;
+ }
+ ch = lkey();
+
+ if ( (do_prompt) && (ch=='?') ) {
+ scr_printf("\rOne of... ");
+ scr_printf(" \n");
+ for (i=0; i<choices; ++i) {
+ extract_token(buf, menustring, i, '|', sizeof buf);
+ scr_printf(" ");
+ keyopt(buf);
+ scr_printf("\n");
+ }
+ scr_printf("\n");
+ display_prompt = 1;
+ }
+
+ for (i=0; i<choices; ++i) {
+ extract_token(buf, menustring, i, '|', sizeof buf);
+ for (c=1; !IsEmptyStr(&buf[c]); ++c) {
+ if ( (ch == tolower(buf[c]))
+ && (buf[c-1]=='<')
+ && (buf[c+1]=='>') ) {
+ for (a=0; !IsEmptyStr(&buf[a]); ++a) {
+ if ( (a!=(c-1)) && (a!=(c+1))) {
+ scr_putc(buf[a]);
+ }
+ }
+ scr_printf("\n");
+ return ch;
+ }
+ }
+ }
+ }
+}
projects / citadel.git / blobdiff