--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tools/srvctrlsocket.c Sun Feb 19 11:56:39 2017 +0100
@@ -0,0 +1,112 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "srvctrlsocket.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+SrvConnection* srvctrl_connet(char *socketfile) {
+ if(!socketfile) {
+ fprintf(stderr, "srvctrl_connect: no socketfile\n");
+ return NULL;
+ }
+ size_t len = strlen(socketfile);
+ if(len == 0) {
+ fprintf(stderr, "srvctrl_connect: invalid socket path\n");
+ return NULL;
+ }
+ if(len > 100) {
+ fprintf(stderr, "srvctrl_connect: socket path too long\n");
+ return NULL;
+ }
+
+ int fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if(fd == -1) {
+ perror("srvctrl_connect: cannot create socket");
+ return NULL;
+ }
+
+ struct sockaddr_un addr;
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ memcpy(addr.sun_path, socketfile, len);
+
+ if(connect(fd, (struct sockaddr*)&addr, sizeof(addr))) {
+ perror("srvctrl_connect");
+ close(fd);
+ return NULL;
+ }
+
+ FILE *stream = fdopen(fd, "r+");
+ if(!stream) {
+ close(fd);
+ return NULL;
+ }
+
+ SrvConnection *conn = calloc(1, sizeof(SrvConnection));
+ conn->socket = fd;
+ conn->stream = stream;
+
+ return conn;
+}
+
+void srvctrl_close(SrvConnection *conn) {
+ fclose(conn->stream);
+ free(conn);
+}
+
+int srvctrl_readmsg(SrvConnection *conn, SrvMsg *msg) {
+ int type = 0;
+ uint16_t length;
+
+ type = fgetc(conn->stream);
+ if(type == EOF) {
+ return 1;
+ }
+
+ if(fread(&length, 1, 2, conn->stream) != 2) {
+ return -1;
+ }
+
+ msg->type = type;
+ msg->length = length;
+ msg->message = malloc(length);
+
+ size_t r = fread(msg->message, 1, length, conn->stream);
+ if(r != length) {
+ free(msg->message);
+ return -1;
+ }
+
+ return 0;
+}