add ability for founder to set group peer limit

src/execute.c

@@ -88,6 +88,7 @@ static struct cmd_func group_commands[] = {
     { "/chatid",    cmd_chatid         },
     { "/ignore",    cmd_ignore         },
     { "/passwd",    cmd_set_passwd     },
+    { "/peerlimit", cmd_set_peerlimit  },
     { "/privacy",   cmd_set_privacy    },
     { "/rejoin",    cmd_rejoin         },
     { "/topic",     cmd_set_topic      },

src/group_commands.c

@@ -21,6 +21,7 @@
  */
 
 #include <string.h>
+#include <stdlib.h>
 
 #include "toxic.h"
 #include "windows.h"
@@ -112,6 +113,47 @@ void cmd_set_passwd(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*ar
     }
 }
 
+void cmd_set_peerlimit(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
+{
+    int maxpeers = 0;
+
+    if (argc < 1) {
+        maxpeers = tox_group_get_peer_limit(m, self->num);
+
+        if (maxpeers == -1) {
+            line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to retrieve peer limit");
+            return;
+        }
+
+        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Peer limit is set to %d", maxpeers);
+        return;
+    }
+
+    maxpeers = atoi(argv[1]);
+
+    if (maxpeers <= 0) {
+        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Peer limit must be a value greater than 0");
+        return;
+    }
+
+    int ret = tox_group_set_peer_limit(m, self->num, (uint32_t) maxpeers);
+
+    switch (ret) {
+        case 0: {
+            line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Peer limit has been set to %d", maxpeers);
+            return;
+        }
+        case -2: {
+            line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "You do not have permission to set the peer limit.");
+            return;
+        }
+        default: {
+            line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set the peer limit");
+            return;
+        }
+    }
+}
+
 void cmd_set_privacy(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
 {
     const char *pstate_str = NULL;

src/group_commands.h

@@ -29,6 +29,7 @@
 void cmd_chatid(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);
 void cmd_ignore(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);
 void cmd_set_passwd(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);
+void cmd_set_peerlimit(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);
 void cmd_set_privacy(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);
 void cmd_rejoin(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);
 void cmd_set_topic(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE]);

src/groupchat.c

@@ -70,9 +70,9 @@ extern struct user_settings *user_settings;
 extern struct Winthread Winthread;
 
 #ifdef AUDIO
-#define AC_NUM_GROUP_COMMANDS 30
+#define AC_NUM_GROUP_COMMANDS 31
 #else
-#define AC_NUM_GROUP_COMMANDS 26
+#define AC_NUM_GROUP_COMMANDS 27
 #endif /* AUDIO */
 
 /* groupchat command names used for tab completion. */
@@ -95,6 +95,7 @@ static const char group_cmd_list[AC_NUM_GROUP_COMMANDS][MAX_CMDNAME_SIZE] = {
     { "/nick"       },
     { "/note"       },
     { "/passwd"     },
+    { "/peerlimit"  },
     { "/privacy"    },
     { "/quit"       },
     { "/rejoin"     },

src/help.c

@@ -246,6 +246,7 @@ static void help_draw_group(ToxWindow *self)
     wprintw(win, "  /chatid                    : Print the group chat id to share with others.\n");
     wprintw(win, "  /ignore <nick>             : Ignore peer\n");
     wprintw(win, "  /passwd <password>         : Set group password (leave blank to unset)\n");
+    wprintw(win, "  /peerlimit <num>           : Set group peer limit\n");
     wprintw(win, "  /privacy <state>           : Set group privacy state: private|public\n");
     wprintw(win, "  /rejoin                    : Rejoin the group\n");
     wprintw(win, "  /topic <msg>               : Set group topic (show current topic if no msg)\n");
@@ -309,7 +310,7 @@ void help_onKey(ToxWindow *self, wint_t key)
             break;
 
         case 'r':
-            help_init_window(self, 13, 80);
+            help_init_window(self, 14, 80);
             self->help->type = HELP_GROUP;
             break;