move common sources to common/

src/common/common.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2013, 2014 Nikos Mavrogiannopoulos
+ * Copyright (C) 2014 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of ocserv.
+ *
+ * The GnuTLS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ */
+#ifndef COMMON_H
+# define COMMON_H
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <ipc.pb-c.h>
+#include <talloc.h>
+#include <time.h>
+#include <string.h>
+
+void _talloc_free2(void *ctx, void *ptr);
+void *_talloc_size2(void *ctx, size_t size);
+
+#define MAX_IP_STR 46
+
+#define PROTOBUF_ALLOCATOR(name, pool) \
+	ProtobufCAllocator name = {.alloc = _talloc_size2, .free = _talloc_free2, .allocator_data = pool}
+
+#define DEFAULT_SOCKET_TIMEOUT 10
+
+void set_non_block(int fd);
+void set_block(int fd);
+
+ssize_t force_write(int sockfd, const void *buf, size_t len);
+ssize_t force_read(int sockfd, void *buf, size_t len);
+ssize_t force_read_timeout(int sockfd, void *buf, size_t len, unsigned sec);
+ssize_t recv_timeout(int sockfd, void *buf, size_t len, unsigned sec);
+
+typedef size_t (*pack_func)(const void*, uint8_t *);
+typedef size_t (*pack_size_func)(const void*);
+
+typedef void* (*unpack_func)(ProtobufCAllocator  *allocator,
+                      size_t               len,
+                      const uint8_t       *data);
+
+int send_msg(void *pool, int fd, uint8_t cmd, 
+	    const void* msg, pack_size_func get_size, pack_func pack);
+
+int send_socket_msg(void *pool, int fd, uint8_t cmd, 
+		    int socketfd,
+		    const void* msg, pack_size_func get_size, pack_func pack);
+
+/* the timeout is in seconds */
+int recv_msg(void *pool, int fd, uint8_t cmd, 
+	     void** msg, unpack_func, unsigned timeout);
+
+int recv_socket_msg(void *pool, int fd, uint8_t cmd, 
+			int *socketfd, void** msg, unpack_func, unsigned timeout);
+
+const char* cmd_request_to_str(unsigned cmd);
+
+ssize_t oc_recvfrom_at(int sockfd, void *buf, size_t len, int flags,
+                    struct sockaddr *src_addr, socklen_t *addrlen,
+                    struct sockaddr *our_addr, socklen_t *our_addrlen,
+                    int def_port);
+
+inline static
+void safe_memset(void *data, int c, size_t size)
+{
+	volatile unsigned volatile_zero = 0;
+	volatile char *vdata = (volatile char*)data;
+
+	/* This is based on a nice trick for safe memset,
+	 * sent by David Jacobson in the openssl-dev mailing list.
+	 */
+
+	if (size > 0)
+		do {
+			memset(data, c, size);
+		} while(vdata[volatile_zero] != c);
+}
+
+inline static
+void ms_sleep(unsigned ms)
+{
+  struct timespec tv;
+
+  tv.tv_sec = 0;
+  tv.tv_nsec = ms * 1000 * 1000;
+
+  while(tv.tv_nsec >= 1000000000) {
+  	tv.tv_nsec -= 1000000000;
+  	tv.tv_sec++;
+  }
+  
+  nanosleep(&tv, NULL);
+}
+
+#ifndef HAVE_STRLCPY
+size_t oc_strlcpy(char *dst, char const *src, size_t siz);
+# define strlcpy oc_strlcpy
+#endif
+
+#endif