5 #include "../src/meshlink++.h"
7 class ChatMesh : public meshlink::mesh {
9 void log(meshlink::log_level_t level, const char *text) {
10 const char *levelstr[] = {"DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"};
11 fprintf(stderr, "%s: %s\n", levelstr[level], text);
14 void receive(meshlink::node *source, const void *data, size_t len) {
15 const char *msg = (const char *)data;
17 if(!len || msg[len - 1]) {
18 fprintf(stderr, "Received invalid data from %s\n", source->name);
22 printf("%s says: %s\n", source->name, msg);
25 void node_status(meshlink::node *node, bool reachable) {
27 printf("%s joined.\n", node->name);
29 printf("%s left.\n", node->name);
34 static meshlink::node **nodes;
37 static void parse_command(meshlink::mesh *mesh, char *buf) {
38 char *arg = strchr(buf, ' ');
44 if(!strcasecmp(buf, "join")) {
46 fprintf(stderr, "/join requires an argument!\n");
52 if(!mesh->join(arg)) {
53 fprintf(stderr, "Could not join using invitation: %s\n", meshlink::strerror());
55 fprintf(stderr, "Invitation accepted!\n");
59 fprintf(stderr, "Could not restart MeshLink: %s\n", meshlink::strerror());
62 } else if(!strcasecmp(buf, "kick")) {
64 fprintf(stderr, "/kick requires an argument!\n");
68 meshlink::node *node = mesh->get_node(arg);
71 fprintf(stderr, "Error looking up '%s': %s\n", arg, meshlink::strerror());
75 mesh->blacklist(node);
77 printf("Node '%s' blacklisted.\n", arg);
78 } else if(!strcasecmp(buf, "who")) {
80 nodes = mesh->get_all_nodes(nodes, &nnodes);
83 fprintf(stderr, "Could not get list of nodes: %s\n", meshlink::strerror());
85 printf("%lu known nodes:", (unsigned long)nnodes);
87 for(size_t i = 0; i < nnodes; i++) {
88 printf(" %s", nodes[i]->name);
94 meshlink::node *node = mesh->get_node(arg);
97 fprintf(stderr, "Error looking up '%s': %s\n", arg, meshlink::strerror());
99 printf("Node %s found\n", arg);
102 } else if(!strcasecmp(buf, "quit")) {
105 } else if(!strcasecmp(buf, "help")) {
107 "<name>: <message> Send a message to the given node.\n"
108 " Subsequent messages don't need the <name>: prefix.\n"
109 "/join <invitation> Join an existing mesh using an invitation.\n"
110 "/kick <name> Blacklist the given node.\n"
111 "/who [<name>] List all nodes or show information about the given node.\n"
112 "/quit Exit this program.\n"
115 fprintf(stderr, "Unknown command '/%s'\n", buf);
119 static void parse_input(meshlink::mesh *mesh, char *buf) {
120 static meshlink::node *destination;
131 if(len && buf[len - 1] == '\n') {
135 if(len && buf[len - 1] == '\r') {
139 // Ignore empty lines.
145 // Commands start with '/'
148 return parse_command(mesh, buf + 1);
151 // Lines in the form "name: message..." set the destination node.
154 char *colon = strchr(buf, ':');
164 destination = mesh->get_node(buf);
167 fprintf(stderr, "Error looking up '%s': %s\n", buf, meshlink::strerror());
173 fprintf(stderr, "Who are you talking to? Write 'name: message...'\n");
177 if(!mesh->send(destination, msg, strlen(msg) + 1)) {
178 fprintf(stderr, "Could not send message to '%s': %s\n", destination->name, meshlink::strerror());
182 printf("Message sent to '%s'.\n", destination->name);
186 int main(int argc, char *argv[]) {
187 const char *confbase = ".chat";
188 const char *nick = NULL;
200 mesh.open(confbase, nick, "chatpp", DEV_CLASS_STATIONARY);
203 fprintf(stderr, "Could not open MeshLink: %s\n", meshlink::strerror());
208 fprintf(stderr, "Could not start MeshLink: %s\n", meshlink::strerror());
212 printf("Chat started.\nType /help for a list of commands.\n");
214 while(fgets(buf, sizeof(buf), stdin)) {
215 parse_input(&mesh, buf);
218 printf("Chat stopping.\n");