# HG changeset patch
# User Olaf Wintermann <olaf.wintermann@gmail.com>
# Date 1487501799 -3600
# Node ID 63b8d52db390905efbd39794a59245bbfd5d98cc
# Parent  4be7dd2b75b95c1afbd1eb1e579e5d638d07f35e
adds new tool for webserver control

diff -r 4be7dd2b75b9 -r 63b8d52db390 src/Makefile
--- a/src/Makefile	Sun Jan 29 09:40:04 2017 +0100
+++ b/src/Makefile	Sun Feb 19 11:56:39 2017 +0100
@@ -28,11 +28,17 @@
 
 BUILD_ROOT = ../
 
-all: _ucx _server
+all: ucx server tools
 	
 
-_ucx:
+ucx: .FORCE
 	cd ucx; $(MAKE) 
 
-_server:
+server: ucx .FORCE
 	cd server; $(MAKE) 
+
+tools: .FORCE
+	cd tools; $(MAKE)
+
+.FORCE:
+	
\ No newline at end of file
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/server/daemon/srvctrl.c
--- a/src/server/daemon/srvctrl.c	Sun Jan 29 09:40:04 2017 +0100
+++ b/src/server/daemon/srvctrl.c	Sun Feb 19 11:56:39 2017 +0100
@@ -199,6 +199,12 @@
 }
 
 void srvctrl_log(SrvCtrlClient *client, char *msg, size_t len) {
+    char msgheader[4];
+    msgheader[0] = SRV_MSG_LOG;
+    uint16_t msglen = len;
+    memcpy(&msgheader[1], &msglen, 2);
+    write(client->fd, msgheader, 3);
+    
     size_t pos = 0;
     ssize_t w = 0;
     while(pos < len) {
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/server/daemon/srvctrl.h
--- a/src/server/daemon/srvctrl.h	Sun Jan 29 09:40:04 2017 +0100
+++ b/src/server/daemon/srvctrl.h	Sun Feb 19 11:56:39 2017 +0100
@@ -39,6 +39,9 @@
 extern "C" {
 #endif
 
+#define SRV_MSG_RESPONSE 0
+#define SRV_MSG_LOG      1
+    
 typedef struct {
     int fd;
 } SrvCtrlClient;
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/tools/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tools/Makefile	Sun Feb 19 11:56:39 2017 +0100
@@ -0,0 +1,48 @@
+#
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+#
+# Copyright 2013 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.
+#
+
+BUILD_ROOT = ../..
+
+include $(BUILD_ROOT)/config.mk
+
+# list of source files
+WSTOOL_SRC = wstool.c
+WSTOOL_SRC += srvctrlsocket.c
+
+WSTOOL_OBJ = $(WSTOOL_SRC:%.c=$(BUILD_ROOT)/build/tools/%$(OBJ_EXT))
+
+all: $(BUILD_ROOT)/build/tools $(BUILD_ROOT)/build/bin/wstool
+
+$(BUILD_ROOT)/build/bin/wstool: $(BUILD_ROOT)/build/tools $(WSTOOL_OBJ)
+	$(CC) -o $@ $(WSTOOL_OBJ) $(LDFLAGS)
+
+$(BUILD_ROOT)/build/tools/%$(OBJ_EXT): %.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+$(BUILD_ROOT)/build/tools:
+	mkdir -p $(BUILD_ROOT)/build/tools
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/tools/srvctrlsocket.c
--- /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;
+}
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/tools/srvctrlsocket.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tools/srvctrlsocket.h	Sun Feb 19 11:56:39 2017 +0100
@@ -0,0 +1,75 @@
+/*
+ * 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.
+ */
+
+#ifndef SRVCTRLSOCKET_H
+#define SRVCTRLSOCKET_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct SrvConnection {
+    int  socket;
+    FILE *stream;
+} SrvConnection;
+
+typedef struct SrvMsg {
+    /*
+     * message type
+     * 0: cmd response
+     * 1: log message
+     */
+    int type;
+    
+    /*
+     * message data
+     */
+    char *message;
+    
+    /*
+     * message length
+     */
+    size_t length;
+} SrvMsg;
+
+SrvConnection* srvctrl_connet(char *socketfile);
+
+void srvctrl_close(SrvConnection *conn);
+
+int srvctrl_readmsg(SrvConnection *conn, SrvMsg *msg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SRVCTRLSOCKET_H */
+
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/tools/wstool.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tools/wstool.c	Sun Feb 19 11:56:39 2017 +0100
@@ -0,0 +1,70 @@
+/*
+ * 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 "wstool.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "srvctrlsocket.h"
+
+static void print_info(char *cmd) {
+    fprintf(stderr, "usage: %s -s <socketpath> <command>\n\n");
+    fprintf(stderr, "Commands: reconfig, shutdown, stat, log\n");
+}
+
+int main(int argc, char **argv) {
+    if(argc < 3) {
+        print_info(argv[0]);
+        return -2;
+    }
+    
+    SrvConnection *srv = srvctrl_connet(argv[1]);
+    if(!srv) {
+        return -1;
+    }
+    
+    fprintf(srv->stream, "%s\n", argv[2]);
+    fflush(srv->stream);
+    
+    SrvMsg msg;
+    while(!srvctrl_readmsg(srv, &msg)) {
+        if(msg.type == 0) {
+            fprintf(stdout, "%.*s", (int)msg.length, msg.message);
+            fflush(stdout);
+        } else if(msg.type == 1) {
+            fprintf(stderr, "%.*s", (int)msg.length, msg.message);
+            fflush(stderr);
+        }
+    }
+    
+    srvctrl_close(srv);
+    
+    return 0;
+}
+
diff -r 4be7dd2b75b9 -r 63b8d52db390 src/tools/wstool.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tools/wstool.h	Sun Feb 19 11:56:39 2017 +0100
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+
+#ifndef WSTOOL_H
+#define WSTOOL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* WSTOOL_H */
+