X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=examples%2Fchat.c;h=f5f41c936126c98393e1e53c1792d8e7267b2357;hb=d5de0bca747e9ba43bc28fbef54aaf5cfc321f5b;hp=c33bbae462319f49557aa5246db770849c30ebbb;hpb=084a3acaa0a62ea1f096ec1916e2adabe6af9d86;p=meshlink diff --git a/examples/chat.c b/examples/chat.c index c33bbae4..f5f41c93 100644 --- a/examples/chat.c +++ b/examples/chat.c @@ -1,11 +1,18 @@ #include #include #include +#include #include "../src/meshlink.h" static void log_message(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) { - const char *levelstr[] = {"DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"}; - fprintf(stderr, "%s: %s\n", levelstr[level], text); + const char *levelstr[] = { + [MESHLINK_DEBUG] = "\x1b[34mDEBUG", + [MESHLINK_INFO] = "\x1b[32mINFO", + [MESHLINK_WARNING] = "\x1b[33mWARNING", + [MESHLINK_ERROR] = "\x1b[31mERROR", + [MESHLINK_CRITICAL] = "\x1b[31mCRITICAL", + }; + fprintf(stderr, "%s:\x1b[0m %s\n", levelstr[level], text); } static void receive(meshlink_handle_t *mesh, meshlink_node_t *source, const void *data, size_t len) { @@ -26,6 +33,9 @@ static void node_status(meshlink_handle_t *mesh, meshlink_node_t *node, bool rea printf("%s left.\n", node->name); } +static meshlink_node_t **nodes; +static size_t nnodes; + static void parse_command(meshlink_handle_t *mesh, char *buf) { char *arg = strchr(buf, ' '); if(arg) @@ -41,7 +51,7 @@ static void parse_command(meshlink_handle_t *mesh, char *buf) { invitation = meshlink_invite(mesh, arg); if(!invitation) { - fprintf(stderr, "Could not invite '%s': %s\n", arg, mesh->errstr); + fprintf(stderr, "Could not invite '%s': %s\n", arg, meshlink_strerror(meshlink_errno)); return; } @@ -52,11 +62,15 @@ static void parse_command(meshlink_handle_t *mesh, char *buf) { fprintf(stderr, "/join requires an argument!\n"); return; } - + meshlink_stop(mesh); if(!meshlink_join(mesh, arg)) - fprintf(stderr, "Could not join using invitation: %s\n", mesh->errstr); + fprintf(stderr, "Could not join using invitation: %s\n", meshlink_strerror(meshlink_errno)); else fprintf(stderr, "Invitation accepted!\n"); + if(!meshlink_start(mesh)) { + fprintf(stderr, "Could not restart MeshLink: %s\n", meshlink_strerror(meshlink_errno)); + exit(1); + } } else if(!strcasecmp(buf, "kick")) { if(!arg) { fprintf(stderr, "/kick requires an argument!\n"); @@ -65,7 +79,7 @@ static void parse_command(meshlink_handle_t *mesh, char *buf) { meshlink_node_t *node = meshlink_get_node(mesh, arg); if(!node) { - fprintf(stderr, "Unknown node '%s'\n", arg); + fprintf(stderr, "Error looking up '%s': %s\n", arg, meshlink_strerror(meshlink_errno)); return; } @@ -74,42 +88,37 @@ static void parse_command(meshlink_handle_t *mesh, char *buf) { printf("Node '%s' blacklisted.\n", arg); } else if(!strcasecmp(buf, "who")) { if(!arg) { - meshlink_node_t *nodes[100]; - size_t n = meshlink_get_all_nodes(mesh, nodes, 100); - if(!n) { - fprintf(stderr, "No nodes known!\n"); - } else { - printf("Known nodes:"); - for(int i = 0; i < n && i < 100; i++) + nodes = meshlink_get_all_nodes(mesh, nodes, &nnodes); + if(!nnodes) + fprintf(stderr, "Could not get list of nodes: %s\n", meshlink_strerror(meshlink_errno)); + else { + printf("%zu known nodes:", nnodes); + for(int i = 0; i < nnodes; i++) printf(" %s", nodes[i]->name); - if(n > 100) - printf(" (and %zu more)", n - 100); printf("\n"); } } else { meshlink_node_t *node = meshlink_get_node(mesh, arg); - if(!node) { - fprintf(stderr, "Unknown node '%s'\n", arg); - } else { + if(!node) + fprintf(stderr, "Error looking up '%s': %s\n", arg, meshlink_strerror(meshlink_errno)); + else printf("Node %s found\n", arg); - } } } else if(!strcasecmp(buf, "quit")) { printf("Bye!\n"); fclose(stdin); } else if(!strcasecmp(buf, "help")) { printf( - ": Send a message to the given node.\n" - " Subsequent messages don't need the : prefix.\n" - "/invite Create an invitation for a new node.\n" - "/join Join an existing mesh using an invitation.\n" - "/kick Blacklist the given node.\n" - "/who [] List all nodes or show information about the given node.\n" - "/quit Exit this program.\n" - ); - } else { + ": Send a message to the given node.\n" + " Subsequent messages don't need the : prefix.\n" + "/invite Create an invitation for a new node.\n" + "/join Join an existing mesh using an invitation.\n" + "/kick Blacklist the given node.\n" + "/who [] List all nodes or show information about the given node.\n" + "/quit Exit this program.\n" + ); + } else fprintf(stderr, "Unknown command '/%s'\n", buf); - } } static void parse_input(meshlink_handle_t *mesh, char *buf) { @@ -152,7 +161,7 @@ static void parse_input(meshlink_handle_t *mesh, char *buf) { destination = meshlink_get_node(mesh, buf); if(!destination) { - fprintf(stderr, "Unknown node '%s'\n", buf); + fprintf(stderr, "Error looking up '%s': %s\n", buf, meshlink_strerror(meshlink_errno)); return; } } @@ -163,7 +172,7 @@ static void parse_input(meshlink_handle_t *mesh, char *buf) { } if(!meshlink_send(mesh, destination, msg, strlen(msg) + 1)) { - fprintf(stderr, "Could not send message to '%s': %s\n", destination->name, mesh->errstr); + fprintf(stderr, "Could not send message to '%s': %s\n", destination->name, meshlink_strerror(meshlink_errno)); return; } @@ -181,9 +190,11 @@ int main(int argc, char *argv[]) { if(argc > 2) nick = argv[2]; - meshlink_handle_t *mesh = meshlink_open(confbase, nick); + meshlink_set_log_cb(NULL, MESHLINK_INFO, log_message); + + meshlink_handle_t *mesh = meshlink_open(confbase, nick, "chat", DEV_CLASS_STATIONARY); if(!mesh) { - fprintf(stderr, "Could not open MeshLink!\n"); + fprintf(stderr, "Could not open MeshLink: %s\n", meshlink_strerror(meshlink_errno)); return 1; } @@ -192,13 +203,13 @@ int main(int argc, char *argv[]) { meshlink_set_log_cb(mesh, MESHLINK_INFO, log_message); if(!meshlink_start(mesh)) { - fprintf(stderr, "Could not start MeshLink: %s\n", mesh->errstr); + fprintf(stderr, "Could not start MeshLink: %s\n", meshlink_strerror(meshlink_errno)); return 1; } printf("Chat started.\nType /help for a list of commands.\n"); - while(fgets(buf, sizeof buf, stdin)) + while(fgets(buf, sizeof(buf), stdin)) parse_input(mesh, buf); printf("Chat stopping.\n");