moved command parsing code to separate files

src/chat.c

@@ -17,6 +17,7 @@
 #include "toxic_windows.h"
 #include "friendlist.h"
 #include "chat.h"
+#include "commands.h"
 
 extern char *DATA_FILE;
 extern int store_data(Tox *m, char *path);

src/commands.c

@@ -0,0 +1,516 @@
+/*
+ * Toxic -- Tox Curses Client
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "toxic_windows.h"
+#include "prompt.h"
+#include "commands.h"
+
+extern char *DATA_FILE;
+
+extern uint8_t pending_frnd_requests[MAX_FRIENDS_NUM][TOX_CLIENT_ID_SIZE];
+extern uint8_t num_frnd_requests;
+
+extern uint8_t pending_grp_requests[MAX_GROUPCHAT_NUM][TOX_CLIENT_ID_SIZE];
+extern uint8_t num_grp_requests;
+
+/* command functions */
+void cmd_accept(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    /* check arguments */
+    if (argc != 1) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    int num = atoi(argv[1]);
+
+    if (num < 0 || num >= num_frnd_requests) {
+        wprintw(window, "No pending friend request with that number.\n");
+        return;
+    }
+
+    int friendnum = tox_addfriend_norequest(m, pending_frnd_requests[num]);
+
+    if (friendnum == -1)
+        wprintw(window, "Failed to add friend.\n");
+    else {
+        wprintw(window, "Friend request accepted.\n");
+        on_friendadded(m, friendnum);
+    }
+}
+
+void cmd_add(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    if (argc < 1 || argc > 2) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    char *id = argv[1];
+
+    if (id == NULL) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    uint8_t *msg;
+
+    if (argc == 2) {
+        msg = argv[2];
+
+        if (msg == NULL) {
+            wprintw(window, "Invalid syntax.\n");
+            return;
+        }
+
+        if (msg[0] != '\"') {
+            wprintw(window, "Messages must be enclosed in quotes.\n");
+            return;
+        }
+
+        msg[strlen(++msg)-1] = L'\0';
+
+    } else
+        msg = "Let's tox.";
+
+    if (strlen(id) != 2 * TOX_FRIEND_ADDRESS_SIZE) {
+        wprintw(window, "Invalid ID length.\n");
+        return;
+    }
+
+    size_t i;
+    char xx[3];
+    uint32_t x;
+    uint8_t id_bin[TOX_FRIEND_ADDRESS_SIZE];
+
+    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; ++i) {
+        xx[0] = id[2 * i];
+        xx[1] = id[2 * i + 1];
+        xx[2] = '\0';
+
+        if (sscanf(xx, "%02x", &x) != 1) {
+            wprintw(window, "Invalid ID.\n");
+            return;
+        }
+
+        id_bin[i] = x;
+    }
+
+    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; i++) {
+        id[i] = toupper(id[i]);
+    }
+
+    int num = tox_addfriend(m, id_bin, msg, strlen(msg) + 1);
+
+    switch (num) {
+        case TOX_FAERR_TOOLONG:
+            wprintw(window, "Message is too long.\n");
+            break;
+
+        case TOX_FAERR_NOMESSAGE:
+            wprintw(window, "Please add a message to your request.\n");
+            break;
+
+        case TOX_FAERR_OWNKEY:
+            wprintw(window, "That appears to be your own ID.\n");
+            break;
+
+        case TOX_FAERR_ALREADYSENT:
+            wprintw(window, "Friend request already sent.\n");
+            break;
+
+        case TOX_FAERR_UNKNOWN:
+            wprintw(window, "Undefined error when adding friend.\n");
+            break;
+
+        case TOX_FAERR_BADCHECKSUM:
+            wprintw(window, "Bad checksum in address.\n");
+            break;
+
+        case TOX_FAERR_SETNEWNOSPAM:
+            wprintw(window, "Nospam was different.\n");
+            break;
+
+        default:
+            wprintw(window, "Friend added as %d.\n", num);
+            on_friendadded(m, num);
+            break;
+    }
+}
+
+void cmd_clear(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    wclear(window);
+    wprintw(window, "\n\n");
+}
+
+void cmd_connect(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    /* check arguments */
+    if (argc != 3) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    tox_IP_Port dht;
+    char *ip = argv[1];
+    char *port = argv[2];
+    char *key = argv[3];
+
+    if (ip == NULL || port == NULL || key == NULL) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    if (atoi(port) == 0) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    uint8_t *binary_string = hex_string_to_bin(key);
+    tox_bootstrap_from_address(m, ip, TOX_ENABLE_IPV6_DEFAULT,
+                               htons(atoi(port)), binary_string);
+    free(binary_string);
+}
+
+void cmd_groupchat(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    int ngc = get_num_groupchats();
+
+    if (ngc < 0 || ngc > MAX_GROUPCHAT_NUM) {
+        wprintw(window, "\nMaximum number of group chats has been reached.\n");
+        return;
+    }
+
+    int groupnum = tox_add_groupchat(m);
+
+    if (groupnum == -1) {
+        wprintw(window, "Group chat failed to initialize.\n");
+        return;
+    }
+
+    if (init_groupchat_win(prompt, m, groupnum) == -1) {
+        wprintw(window, "Group chat failed to initialize.\n");
+        tox_del_groupchat(m, groupnum);
+        return;
+    }
+
+    wprintw(window, "Group chat created as %d.\n", groupnum);
+}
+
+void cmd_invite(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    if (argc != 2) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    if (argv[1] == NULL || argv[2] == NULL) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    uint8_t *friendname = argv[1];
+    int groupnum = atoi(argv[2]);
+
+    if (friendname[0] == '\"')
+        friendname[strlen(++friendname)-1] = L'\0';
+
+    int friendnum = get_friendnum(friendname);
+
+    if (friendnum == -1) {
+        wprintw(window, "Friend '%s' not found.\n", friendname);
+        return;
+    }
+
+    if (tox_invite_friend(m, friendnum, groupnum) == -1) {
+        wprintw(window, "Failed to invite friend.\n");
+        return;
+    }
+
+    wprintw(window, "Invited friend %s to group chat %d.\n", friendname, groupnum);
+}
+
+void cmd_join(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    if (argc != 1) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    if (argv[1] == NULL) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    int num = atoi(argv[1]);
+
+    if (num < 0 || num >= num_grp_requests) {
+        wprintw(window, "No pending group chat invites with that number.\n");
+        return;
+    }
+
+    int groupnum = tox_join_groupchat(m, num, pending_grp_requests[num]);
+
+    if (groupnum == -1) {
+        wprintw(window, "Group chat failed to initialize.\n");
+        return;
+    }
+
+    if (init_groupchat_win(prompt, m, groupnum) == -1) {
+        wprintw(window, "Group chat window failed to initialize.\n");
+        tox_del_groupchat(m, groupnum);
+        return;
+    }
+}
+
+void cmd_msg(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    /* check arguments */
+    if (argc != 2) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    char *id = argv[1];
+    uint8_t *msg = argv[2];
+
+    if (id == NULL || msg == NULL) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    msg[strlen(++msg)-1] = L'\0';
+
+    if (tox_sendmessage(m, atoi(id), msg, strlen(msg) + 1) == 0)
+        wprintw(window, "Failed to send message.\n");
+    else
+        wprintw(window, "Message successfully sent.\n");
+}
+
+void cmd_myid(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    char id[TOX_FRIEND_ADDRESS_SIZE * 2 + 1] = {0};
+    uint8_t address[TOX_FRIEND_ADDRESS_SIZE];
+    tox_getaddress(m, address);
+
+    size_t i;
+
+    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; ++i) {
+        char xx[3];
+        snprintf(xx, sizeof(xx), "%02X", address[i] & 0xff);
+        strcat(id, xx);
+    }
+
+    wprintw(window, "%s\n", id);
+}
+
+void cmd_nick(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    /* check arguments */
+    if (argc != 1) {
+      wprintw(window, "Invalid syntax.\n");
+      return;
+    }
+
+    uint8_t *nick = argv[1];
+
+    if (nick == NULL) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    int len = strlen(nick);
+
+    if (nick[0] == '\"') {
+        ++nick;
+        len -= 2;
+        nick[len] = L'\0';
+    }
+
+    if (len > TOXIC_MAX_NAME_LENGTH) {
+        nick[TOXIC_MAX_NAME_LENGTH] = L'\0';
+        len = TOXIC_MAX_NAME_LENGTH;
+    }
+
+    tox_setname(m, nick, len+1);
+    prompt_update_nick(prompt, nick, len+1);
+
+    store_data(m, DATA_FILE);
+}
+
+void cmd_note(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    if (argc != 1) {
+        wprintw(window, "Wrong number of arguments.\n");
+        return;
+    }
+
+    uint8_t *msg = argv[1];
+
+    if (msg == NULL) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    if (msg[0] != '\"') {
+        wprintw(window, "Messages must be enclosed in quotes.\n");
+        return;
+    }
+
+    msg[strlen(++msg)-1] = L'\0';
+    uint16_t len = strlen(msg) + 1;
+    tox_set_statusmessage(m, msg, len);
+    prompt_update_statusmessage(prompt, msg, len);
+}
+
+void cmd_quit(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    exit_toxic(m);
+}
+
+void cmd_status(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+{
+    uint8_t *msg = NULL;
+
+    if (argc == 2) {
+
+        msg = argv[2];
+
+        if (msg == NULL) {
+            wprintw(window, "Invalid syntax.\n");
+            return;
+        }
+
+        if (msg[0] != '\"') {
+            wprintw(window, "Messages must be enclosed in quotes.\n");
+            return;
+        }
+    } else if (argc != 1) {
+        wprintw(window, "Wrong number of arguments.\n");
+        return;
+    }
+
+    char *status = argv[1];
+
+    if (status == NULL) {
+        wprintw(window, "Invalid syntax.\n");
+        return;
+    }
+
+    TOX_USERSTATUS status_kind;
+
+    if (!strncmp(status, "online", strlen("online")))
+        status_kind = TOX_USERSTATUS_NONE;
+
+    else if (!strncmp(status, "away", strlen("away")))
+        status_kind = TOX_USERSTATUS_AWAY;
+
+    else if (!strncmp(status, "busy", strlen("busy")))
+        status_kind = TOX_USERSTATUS_BUSY;
+
+    else
+        wprintw(window, "Invalid status.\n");
+
+    tox_set_userstatus(m, status_kind);
+    prompt_update_status(prompt, status_kind);
+
+    if (msg != NULL) {
+        msg[strlen(++msg)-1] = L'\0';   /* remove opening and closing quotes */
+        uint16_t len = strlen(msg) + 1;
+        tox_set_statusmessage(m, msg, len);
+        prompt_update_statusmessage(prompt, msg, len);
+    }
+}
+
+void execute(WINDOW *window, ToxWindow *prompt, Tox *m, char *u_cmd, int buf_len)
+{
+    int newlines = 0;
+    char cmd[MAX_STR_SIZE] = {'\0'};
+    size_t i;
+
+    for (i = 0; i < buf_len; ++i) {
+        if (u_cmd[i] == '\n')
+            ++newlines;
+        else
+            cmd[i - newlines] = u_cmd[i];
+    }
+
+    int leading_spc = 0;
+
+    for (i = 0; i < MAX_STR_SIZE && isspace(cmd[i]); ++i)
+        leading_spc++;
+
+    memmove(cmd, cmd + leading_spc, MAX_STR_SIZE - leading_spc);
+
+    int cmd_end = strlen(cmd);
+
+    while (cmd_end > 0 && cmd_end--)
+        if (!isspace(cmd[cmd_end]))
+            break;
+
+    cmd[cmd_end + 1] = '\0';
+
+    /* insert \0 at argument boundaries */
+    int numargs = 0;
+    for (i = 0; i < MAX_STR_SIZE; i++) {
+        if (cmd[i] == ' ') {
+            cmd[i] = '\0';
+            numargs++;
+        }
+        /* skip over strings */
+        else if (cmd[i] == '\"') {
+            while (cmd[++i] != '\"') {
+                if (cmd[i] == '\0') {
+                    wprintw(window, "Invalid command: did you forget an opening or closing \"?\n");
+                    return;
+                }
+            }
+        }
+    }
+
+    /* read arguments into array */
+    char **cmdargs = malloc((numargs + 1) * sizeof(char *));
+    if (!cmdargs) {
+        wprintw(window, "Invalid command: too many arguments.\n");
+        return;
+    }
+
+    int pos = 0;
+    
+    for (i = 0; i < numargs + 1; i++) {
+        cmdargs[i] = cmd + pos;
+        pos += strlen(cmdargs[i]) + 1;
+        /* replace empty strings with NULL for easier error checking */
+        if (strlen(cmdargs[i]) == 0)
+            cmdargs[i] = NULL;
+    }
+
+    /* no input */
+    if (!cmdargs[0]) {
+        free(cmdargs);
+        return;
+    }
+
+    /* match input to command list */
+    for (i = 0; i < NUM_COMMANDS; i++) {
+        if (!strcmp(cmdargs[0], commands[i].name)) {
+            (commands[i].func)(window, prompt, m, numargs, cmdargs);
+            free(cmdargs);
+            return;
+        }
+    }
+
+    /* no match */
+    free(cmdargs);
+    wprintw(window, "Invalid command.\n");
+}

src/commands.h

@@ -0,0 +1,43 @@
+/*
+ * Toxic -- Tox Curses Client
+ */
+
+/* commands */
+void cmd_accept(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_add(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_clear(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_connect(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_groupchat(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_invite(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_join(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_msg(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_myid(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_nick(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_note(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_quit(WINDOW *, ToxWindow *, Tox *m, int, char **);
+void cmd_status(WINDOW *, ToxWindow *, Tox *m, int, char **);
+
+void execute(WINDOW *window, ToxWindow *prompt, Tox *m, char *u_cmd, int buf_len);
+
+#define NUM_COMMANDS 15
+
+static struct {
+    char *name;
+    void (*func)(WINDOW *, ToxWindow *, Tox *m, int, char **);
+} commands[] = {
+    { "/accept",    cmd_accept    },
+    { "/add",       cmd_add       },
+    { "/clear",     cmd_clear     },
+    { "/connect",   cmd_connect   },
+    { "/exit",      cmd_quit      },
+    { "/groupchat", cmd_groupchat },
+    { "/invite",    cmd_invite    },
+    { "/join",      cmd_join      },
+    { "/msg",       cmd_msg       },
+    { "/myid",      cmd_myid      },
+    { "/nick",      cmd_nick      },
+    { "/note",      cmd_note      },
+    { "/q",         cmd_quit      },
+    { "/quit",      cmd_quit      },
+    { "/status",    cmd_status    },
+};

src/groupchat.c

@@ -15,7 +15,7 @@
 
 #include "toxic_windows.h"
 #include "chat.h"
-#include "prompt.h"
+#include "commands.h"
 
 static GroupChat groupchats[MAX_GROUPCHAT_NUM];
 static int group_chat_index = 0;

src/prompt.c

@@ -11,9 +11,7 @@
 #include <ctype.h>
 
 #include "prompt.h"
-#include "groupchat.h"
+#include "commands.h"
-
-extern char *DATA_FILE;
 
 uint8_t pending_frnd_requests[MAX_FRIENDS_NUM][TOX_CLIENT_ID_SIZE];
 uint8_t num_frnd_requests = 0;
@@ -24,46 +22,6 @@ uint8_t num_grp_requests = 0;
 static char prompt_buf[MAX_STR_SIZE] = {'\0'};
 static int prompt_buf_pos = 0;
 
-/* commands */
-void cmd_accept(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_add(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_clear(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_connect(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_groupchat(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_help(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_invite(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_join(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_msg(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_myid(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_nick(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_quit(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_status(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_note(WINDOW *, ToxWindow *, Tox *m, int, char **);
-
-#define NUM_COMMANDS 16
-
-static struct {
-    char *name;
-    void (*func)(WINDOW *, ToxWindow *, Tox *m, int, char **);
-} commands[] = {
-    { "/accept",    cmd_accept    },
-    { "/add",       cmd_add       },
-    { "/clear",     cmd_clear     },
-    { "/connect",   cmd_connect   },
-    { "/exit",      cmd_quit      },
-    { "/groupchat", cmd_groupchat },
-    { "/help",      cmd_help      },
-    { "/invite",    cmd_invite    },
-    { "/join",      cmd_join      },
-    { "/msg",       cmd_msg       },
-    { "/myid",      cmd_myid      },
-    { "/nick",      cmd_nick      },
-    { "/q",         cmd_quit      },
-    { "/quit",      cmd_quit      },
-    { "/status",    cmd_status    },
-    { "/note",      cmd_note      },
-};
-
 /* Updates own nick in prompt statusbar */
 void prompt_update_nick(ToxWindow *prompt, uint8_t *nick, uint16_t len)
 {
@@ -139,526 +97,32 @@ unsigned char *hex_string_to_bin(char hex_string[])
     return val;
 }
 
-/* command functions */
+void print_prompt_help(ToxWindow *self)
-void cmd_accept(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
 {
-    /* check arguments */
+    wclear(self->window);
-    if (argc != 1) {
+    wattron(self->window, COLOR_PAIR(CYAN) | A_BOLD);
-      wprintw(window, "Invalid syntax.\n");
+    wprintw(self->window, "\n\nCommands:\n");
-      return;
+    wattroff(self->window, A_BOLD);
-    }
+
-
+    wprintw(self->window, "      /add <id> <message>        : Add friend with optional message\n");
-    int num = atoi(argv[1]);
+    wprintw(self->window, "      /accept <n>                : Accept friend request\n");
-
+    wprintw(self->window, "      /status <type> <message>   : Set your status with optional note\n");
-    if (num < 0 || num >= num_frnd_requests) {
+    wprintw(self->window, "      /note  <message>           : Set a personal note\n");
-        wprintw(window, "No pending friend request with that number.\n");
+    wprintw(self->window, "      /nick <nickname>           : Set your nickname\n");
-        return;
+    wprintw(self->window, "      /join <n>                  : Join a group chat\n");
-    }
+    wprintw(self->window, "      /invite <nickname> <n>     : Invite friend to a groupchat\n");
-
+    wprintw(self->window, "      /groupchat                 : Create a group chat\n");
-    int friendnum = tox_addfriend_norequest(m, pending_frnd_requests[num]);
+    wprintw(self->window, "      /myid                      : Print your ID\n");
-
+    wprintw(self->window, "      /quit or /exit             : Exit Toxic\n");
-    if (friendnum == -1)
+    wprintw(self->window, "      /help                      : Print this message again\n");
-        wprintw(window, "Failed to add friend.\n");
+    wprintw(self->window, "      /clear                     : Clear this window\n");
-    else {
+
-        wprintw(window, "Friend request accepted.\n");
+    wattron(self->window, A_BOLD);
-        on_friendadded(m, friendnum);
+    wprintw(self->window, " * Messages must be enclosed in quotation marks.\n");
-    }
+    wprintw(self->window, " * Use the TAB key to navigate through the tabs.\n");
-}
+    wattroff(self->window, A_BOLD);
-
+
-void cmd_add(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
+    wattroff(self->window, COLOR_PAIR(CYAN));
-{
-    if (argc < 1 || argc > 2) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    char *id = argv[1];
-
-    if (id == NULL) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    uint8_t *msg;
-
-    if (argc == 2) {
-        msg = argv[2];
-
-        if (msg == NULL) {
-            wprintw(window, "Invalid syntax.\n");
-            return;
-        }
-
-        if (msg[0] != '\"') {
-            wprintw(window, "Messages must be enclosed in quotes.\n");
-            return;
-        }
-
-        msg[strlen(++msg)-1] = L'\0';
-
-    } else
-        msg = "Let's tox.";
-
-    if (strlen(id) != 2 * TOX_FRIEND_ADDRESS_SIZE) {
-        wprintw(window, "Invalid ID length.\n");
-        return;
-    }
-
-    size_t i;
-    char xx[3];
-    uint32_t x;
-    uint8_t id_bin[TOX_FRIEND_ADDRESS_SIZE];
-
-    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; ++i) {
-        xx[0] = id[2 * i];
-        xx[1] = id[2 * i + 1];
-        xx[2] = '\0';
-
-        if (sscanf(xx, "%02x", &x) != 1) {
-            wprintw(window, "Invalid ID.\n");
-            return;
-        }
-
-        id_bin[i] = x;
-    }
-
-    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; i++) {
-        id[i] = toupper(id[i]);
-    }
-
-    int num = tox_addfriend(m, id_bin, msg, strlen(msg) + 1);
-
-    switch (num) {
-        case TOX_FAERR_TOOLONG:
-            wprintw(window, "Message is too long.\n");
-            break;
-
-        case TOX_FAERR_NOMESSAGE:
-            wprintw(window, "Please add a message to your request.\n");
-            break;
-
-        case TOX_FAERR_OWNKEY:
-            wprintw(window, "That appears to be your own ID.\n");
-            break;
-
-        case TOX_FAERR_ALREADYSENT:
-            wprintw(window, "Friend request already sent.\n");
-            break;
-
-        case TOX_FAERR_UNKNOWN:
-            wprintw(window, "Undefined error when adding friend.\n");
-            break;
-
-        case TOX_FAERR_BADCHECKSUM:
-            wprintw(window, "Bad checksum in address.\n");
-            break;
-
-        case TOX_FAERR_SETNEWNOSPAM:
-            wprintw(window, "Nospam was different.\n");
-            break;
-
-        default:
-            wprintw(window, "Friend added as %d.\n", num);
-            on_friendadded(m, num);
-            break;
-    }
-}
-
-void cmd_clear(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    wclear(window);
-    wprintw(window, "\n\n");
-}
-
-void cmd_connect(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    /* check arguments */
-    if (argc != 3) {
-      wprintw(window, "Invalid syntax.\n");
-      return;
-    }
-
-    tox_IP_Port dht;
-    char *ip = argv[1];
-    char *port = argv[2];
-    char *key = argv[3];
-
-    if (ip == NULL || port == NULL || key == NULL) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    if (atoi(port) == 0) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    uint8_t *binary_string = hex_string_to_bin(key);
-    tox_bootstrap_from_address(m, ip, TOX_ENABLE_IPV6_DEFAULT,
-                               htons(atoi(port)), binary_string);
-    free(binary_string);
-}
-
-void cmd_quit(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    exit_toxic(m);
-}
-
-void cmd_groupchat(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    int ngc = get_num_groupchats();
-
-    if (ngc < 0 || ngc > MAX_GROUPCHAT_NUM) {
-        wprintw(window, "\nMaximum number of group chats has been reached.\n");
-        return;
-    }
-
-    int groupnum = tox_add_groupchat(m);
-
-    if (groupnum == -1) {
-        wprintw(window, "Group chat failed to initialize.\n");
-        return;
-    }
-
-    if (init_groupchat_win(prompt, m, groupnum) == -1) {
-        wprintw(window, "Group chat failed to initialize.\n");
-        tox_del_groupchat(m, groupnum);
-        return;
-    }
-
-    wprintw(window, "Group chat created as %d.\n", groupnum);
-}
-
-void cmd_help(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    wclear(window);
-    wattron(window, COLOR_PAIR(CYAN) | A_BOLD);
-    wprintw(window, "\n\nCommands:\n");
-    wattroff(window, A_BOLD);
-
-    wprintw(window, "      /connect <ip> <port> <key> : Connect to DHT server\n");
-    wprintw(window, "      /add <id> <message>        : Add friend with optional message\n");
-    wprintw(window, "      /accept <n>                : Accept friend request\n");
-    wprintw(window, "      /status <type> <message>   : Set your status with optional note\n");
-    wprintw(window, "      /note  <message>           : Set a personal note\n");
-    wprintw(window, "      /nick <nickname>           : Set your nickname\n");
-    wprintw(window, "      /join <n>                  : Join a group chat\n");
-    wprintw(window, "      /invite <nickname> <n>     : Invite friend to a groupchat\n");
-    wprintw(window, "      /groupchat                 : Create a group chat\n");
-    wprintw(window, "      /myid                      : Print your ID\n");
-    wprintw(window, "      /quit or /exit             : Exit Toxic\n");
-    wprintw(window, "      /help                      : Print this message again\n");
-    wprintw(window, "      /clear                     : Clear this window\n");
-
-    wattron(window, A_BOLD);
-    wprintw(window, "\n * Messages must be enclosed in quotation marks.\n");
-    wprintw(window, " * Use the TAB key to navigate through the tabs.\n\n");
-    wattroff(window, A_BOLD);
-
-    wattroff(window, COLOR_PAIR(CYAN));
-}
-
-void cmd_invite(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    if (argc != 2) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    if (argv[1] == NULL || argv[2] == NULL) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    uint8_t *friendname = argv[1];
-    int groupnum = atoi(argv[2]);
-
-    if (friendname[0] == '\"')
-        friendname[strlen(++friendname)-1] = L'\0';
-
-    int friendnum = get_friendnum(friendname);
-
-    if (friendnum == -1) {
-        wprintw(window, "Friend '%s' not found.\n", friendname);
-        return;
-    }
-
-    if (tox_invite_friend(m, friendnum, groupnum) == -1) {
-        wprintw(window, "Failed to invite friend.\n");
-        return;
-    }
-
-    wprintw(window, "Invited friend %s to group chat %d.\n", friendname, groupnum);
-}
-
-void cmd_join(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    if (argc != 1) {
-      wprintw(window, "Invalid syntax.\n");
-      return;
-    }
-
-    if (argv[1] == NULL) {
-      wprintw(window, "Invalid syntax.\n");
-      return;
-    }
-
-    int num = atoi(argv[1]);
-
-    if (num < 0 || num >= num_grp_requests) {
-        wprintw(window, "No pending group chat invites with that number.\n");
-        return;
-    }
-
-    int groupnum = tox_join_groupchat(m, num, pending_grp_requests[num]);
-
-    if (groupnum == -1) {
-        wprintw(window, "Group chat failed to initialize.\n");
-        return;
-    }
-
-    if (init_groupchat_win(prompt, m, groupnum) == -1) {
-        wprintw(window, "Group chat window failed to initialize.\n");
-        tox_del_groupchat(m, groupnum);
-        return;
-    }
-}
-
-void cmd_msg(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    /* check arguments */
-    if (argc != 2) {
-      wprintw(window, "Invalid syntax.\n");
-      return;
-    }
-
-    char *id = argv[1];
-    uint8_t *msg = argv[2];
-
-    if (id == NULL || msg == NULL) {
-      wprintw(window, "Invalid syntax.\n");
-      return;
-    }
-
-    msg[strlen(++msg)-1] = L'\0';
-
-    if (tox_sendmessage(m, atoi(id), msg, strlen(msg) + 1) == 0)
-        wprintw(window, "Failed to send message.\n");
-    else
-        wprintw(window, "Message successfully sent.\n");
-}
-
-void cmd_myid(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    char id[TOX_FRIEND_ADDRESS_SIZE * 2 + 1] = {0};
-    uint8_t address[TOX_FRIEND_ADDRESS_SIZE];
-    tox_getaddress(m, address);
-
-    size_t i;
-
-    for (i = 0; i < TOX_FRIEND_ADDRESS_SIZE; ++i) {
-        char xx[3];
-        snprintf(xx, sizeof(xx), "%02X", address[i] & 0xff);
-        strcat(id, xx);
-    }
-
-    wprintw(window, "%s\n", id);
-}
-
-void cmd_nick(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    /* check arguments */
-    if (argc != 1) {
-      wprintw(window, "Invalid syntax.\n");
-      return;
-    }
-
-    uint8_t *nick = argv[1];
-
-    if (nick == NULL) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    int len = strlen(nick);
-
-    if (nick[0] == '\"') {
-        ++nick;
-        len -= 2;
-        nick[len] = L'\0';
-    }
-
-    if (len > TOXIC_MAX_NAME_LENGTH) {
-        nick[TOXIC_MAX_NAME_LENGTH] = L'\0';
-        len = TOXIC_MAX_NAME_LENGTH;
-    }
-
-    tox_setname(m, nick, len+1);
-    prompt_update_nick(prompt, nick, len+1);
-
-    store_data(m, DATA_FILE);
-}
-
-void cmd_status(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    uint8_t *msg = NULL;
-
-    if (argc == 2) {
-
-        msg = argv[2];
-
-        if (msg == NULL) {
-            wprintw(window, "Invalid syntax.\n");
-            return;
-        }
-
-        if (msg[0] != '\"') {
-            wprintw(window, "Messages must be enclosed in quotes.\n");
-            return;
-        }
-    } else if (argc != 1) {
-        wprintw(window, "Wrong number of arguments.\n");
-        return;
-    }
-
-    char *status = argv[1];
-
-    if (status == NULL) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    TOX_USERSTATUS status_kind;
-
-    if (!strncmp(status, "online", strlen("online")))
-        status_kind = TOX_USERSTATUS_NONE;
-
-    else if (!strncmp(status, "away", strlen("away")))
-        status_kind = TOX_USERSTATUS_AWAY;
-
-    else if (!strncmp(status, "busy", strlen("busy")))
-        status_kind = TOX_USERSTATUS_BUSY;
-
-    else
-        wprintw(window, "Invalid status.\n");
-
-    tox_set_userstatus(m, status_kind);
-    prompt_update_status(prompt, status_kind);
-
-    if (msg != NULL) {
-        msg[strlen(++msg)-1] = L'\0';   /* remove opening and closing quotes */
-        uint16_t len = strlen(msg) + 1;
-        tox_set_statusmessage(m, msg, len);
-        prompt_update_statusmessage(prompt, msg, len);
-    }
-}
-
-void cmd_note(WINDOW *window, ToxWindow *prompt, Tox *m, int argc, char **argv)
-{
-    if (argc != 1) {
-        wprintw(window, "Wrong number of arguments.\n");
-        return;
-    }
-
-    uint8_t *msg = argv[1];
-
-    if (msg == NULL) {
-        wprintw(window, "Invalid syntax.\n");
-        return;
-    }
-
-    if (msg[0] != '\"') {
-        wprintw(window, "Messages must be enclosed in quotes.\n");
-        return;
-    }
-
-    msg[strlen(++msg)-1] = L'\0';
-    uint16_t len = strlen(msg) + 1;
-    tox_set_statusmessage(m, msg, len);
-    prompt_update_statusmessage(prompt, msg, len);
-}
-
-void execute(WINDOW *window, ToxWindow *prompt, Tox *m, char *u_cmd, int buf_len)
-{
-    int newlines = 0;
-    char cmd[MAX_STR_SIZE] = {'\0'};
-    size_t i;
-
-    for (i = 0; i < buf_len; ++i) {
-        if (u_cmd[i] == '\n')
-            ++newlines;
-        else
-            cmd[i - newlines] = u_cmd[i];
-    }
-
-    int leading_spc = 0;
-
-    for (i = 0; i < MAX_STR_SIZE && isspace(cmd[i]); ++i)
-        leading_spc++;
-
-    memmove(cmd, cmd + leading_spc, MAX_STR_SIZE - leading_spc);
-
-    int cmd_end = strlen(cmd);
-
-    while (cmd_end > 0 && cmd_end--)
-        if (!isspace(cmd[cmd_end]))
-            break;
-
-    cmd[cmd_end + 1] = '\0';
-
-    /* insert \0 at argument boundaries */
-    int numargs = 0;
-    for (i = 0; i < MAX_STR_SIZE; i++) {
-        if (cmd[i] == ' ') {
-            cmd[i] = '\0';
-            numargs++;
-        }
-        /* skip over strings */
-        else if (cmd[i] == '\"') {
-            while (cmd[++i] != '\"') {
-                if (cmd[i] == '\0') {
-                    wprintw(window, "Invalid command: did you forget an opening or closing \"?\n");
-                    return;
-                }
-            }
-        }
-    }
-
-    /* read arguments into array */
-    char **cmdargs = malloc((numargs + 1) * sizeof(char *));
-    if (!cmdargs) {
-        wprintw(window, "Invalid command: too many arguments.\n");
-        return;
-    }
-
-    int pos = 0;
-    
-    for (i = 0; i < numargs + 1; i++) {
-        cmdargs[i] = cmd + pos;
-        pos += strlen(cmdargs[i]) + 1;
-        /* replace empty strings with NULL for easier error checking */
-        if (strlen(cmdargs[i]) == 0)
-            cmdargs[i] = NULL;
-    }
-
-    /* no input */
-    if (!cmdargs[0]) {
-        free(cmdargs);
-        return;
-    }
-
-    /* match input to command list */
-    for (i = 0; i < NUM_COMMANDS; i++) {
-        if (!strcmp(cmdargs[0], commands[i].name)) {
-            (commands[i].func)(window, prompt, m, numargs, cmdargs);
-            free(cmdargs);
-            return;
-        }
-    }
-
-    /* no match */
-    free(cmdargs);
-    wprintw(window, "Invalid command.\n");
 }
 
 static void prompt_onKey(ToxWindow *self, Tox *m, wint_t key)
@@ -684,7 +148,12 @@ static void prompt_onKey(ToxWindow *self, Tox *m, wint_t key)
     /* RETURN key: execute command */
     else if (key == '\n') {
         wprintw(self->window, "\n");
+
+        if (!strncmp(prompt_buf, "/help", strlen("/help")))
+            print_prompt_help(self);
+        else
             execute(self->window, self, m, prompt_buf, prompt_buf_pos);
+
         prompt_buf_pos = 0;
         prompt_buf[0] = 0;
     }
@@ -762,7 +231,7 @@ static void prompt_onDraw(ToxWindow *self, Tox *m)
 static void prompt_onInit(ToxWindow *self, Tox *m)
 {
     scrollok(self->window, 1);
-    cmd_help(self->window, self, m, 0, NULL);
+    print_prompt_help(self);
     wclrtoeol(self->window);
 }
 
@@ -846,7 +315,7 @@ void prompt_init_statusbar(ToxWindow *self, Tox *m)
     statusbar->topline = subwin(self->window, 2, x, 0, 0);
 }
 
-ToxWindow new_prompt()
+ToxWindow new_prompt(void)
 {
     ToxWindow ret;
     memset(&ret, 0, sizeof(ret));

src/prompt.h

@@ -1,9 +1,13 @@
+/*
+ * Toxic -- Tox Curses Client
+ */
+
 #ifndef PROMPT_H_UZYGWFFL
 #define PROMPT_H_UZYGWFFL
 
 #include "toxic_windows.h"
 
-ToxWindow new_prompt();
+ToxWindow new_prompt(void);
 int add_req(uint8_t *public_key);
 unsigned char *hex_string_to_bin(char hex_string[]);
 void prompt_init_statusbar(ToxWindow *self, Tox *m);
@@ -12,22 +16,4 @@ void prompt_update_statusmessage(ToxWindow *prompt, uint8_t *statusmsg, uint16_t
 void prompt_update_status(ToxWindow *prompt, TOX_USERSTATUS status);
 void prompt_update_connectionstatus(ToxWindow *prompt, bool is_connected);
 
-/* commands */
-void cmd_accept(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_add(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_clear(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_connect(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_groupchat(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_help(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_invite(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_join(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_msg(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_myid(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_nick(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_quit(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_status(WINDOW *, ToxWindow *, Tox *m, int, char **);
-void cmd_note(WINDOW *, ToxWindow *, Tox *m, int, char **);
-
-void execute(WINDOW *window, ToxWindow *prompt, Tox *m, char *u_cmd, int buf_len);
-
 #endif /* end of include guard: PROMPT_H_UZYGWFFL */