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/* Copyright 2016 Alex 'AdUser' Z (ad_user@runbox.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "common.h"
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#include "buf.h"
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#include "log.h"
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#include "commands.h"
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#include "csocket.h"
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <sys/un.h>
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typedef struct f2b_conn_t {
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int sock;
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const char *path;
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f2b_buf_t recv;
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f2b_buf_t send;
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} f2b_conn_t;
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struct f2b_csock_t {
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f2b_conn_t *clients[MAXCONNS];
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const char *path;
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int sock;
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bool shutdown;
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};
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f2b_csock_t *
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f2b_csocket_create(const char *path) {
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f2b_csock_t *csock;
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struct sockaddr_un addr;
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int sock = -1;
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assert(path != NULL);
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if ((sock = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0)) < 0) {
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f2b_log_msg(log_error, "can't create control socket: %s", strerror(errno));
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return NULL;
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}
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memset(&addr, 0x0, sizeof(addr));
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addr.sun_family = AF_UNIX;
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strlcpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
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unlink(path);
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if (bind(sock, (struct sockaddr *) &addr, sizeof(struct sockaddr_un)) != 0) {
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f2b_log_msg(log_error, "bind() on socket failed: %s", strerror(errno));
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return NULL;
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}
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if (listen(sock, 5) < 0) {
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f2b_log_msg(log_error, "listen() on socket failed: %s", strerror(errno));
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return NULL;
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}
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if ((csock = calloc(1, sizeof(f2b_csock_t))) == NULL) {
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f2b_log_msg(log_error, "can't allocate memory for csocket struct");
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shutdown(sock, SHUT_RDWR);
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unlink(path);
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return NULL;
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}
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csock->sock = sock;
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csock->path = path;
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return csock;
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}
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void
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f2b_csocket_destroy(f2b_csock_t *csock) {
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f2b_conn_t *conn = NULL;
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assert(csock != NULL);
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if (csock->sock >= 0)
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shutdown(csock->sock, SHUT_RDWR);
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if (csock->path != NULL)
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unlink(csock->path);
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for (int i = 0; i < MAXCONNS; i++) {
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if ((conn = csock->clients[i]) == NULL)
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continue;
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shutdown(conn->sock, SHUT_RDWR);
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f2b_buf_free(&conn->recv);
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f2b_buf_free(&conn->send);
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free(conn);
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}
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free(csock);
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return;
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}
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int
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f2b_csocket_poll(f2b_csock_t *csock, void (*cb)(const f2b_cmd_t *cmd, f2b_buf_t *res)) {
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f2b_cmd_t *cmd = NULL;
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int ret, processed = 0;
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assert(csock != NULL);
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assert(cb != NULL);
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return processed;
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}
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