X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=net.h;h=7499ce6267b5f9174e9556a23f82c7707e14dc40;hp=1695504caa87408be9e8e53b08330a6bc1c721f0;hb=8d7f47e8cec74e4d209cfa1f6c4c0cec3b0e5019;hpb=cd4b294da6f6802d9918c8fe5bcecb8a2a2363c3

diff --git a/net.h b/net.h
index 1695504c..7499ce62 100644
--- a/net.h
+++ b/net.h
@@ -16,15 +16,37 @@
 #define UNIX_PATH_MAX 108
 #endif
 
+/** \cond Userland defines for Linux DCCP support. */
+#ifndef IPPROTO_DCCP
+#define IPPROTO_DCCP	33	/**< IANA assigned value */
+#define SOCK_DCCP	6	/**< Linux socket type	 */
+#define SOL_DCCP        269	/**< Linux socket level	 */
+#endif
+/** \endcond */
+
+/**
+ * Generic socket creation (passive and active sockets).
+ */
+extern int makesock(unsigned l3type, unsigned l4type, int passive,
+	            const char *host, unsigned short port_number);
+
+/**
+ * Functions to support listening sockets.
+ */
+/** How many pending connections queue of a listening server will hold. */
+#define BACKLOG	10
+extern int para_listen(unsigned l3type, unsigned l4type, unsigned short port);
+
+/** Pretty-printing of IPv4/6 socket addresses */
+extern char *host_and_port(struct sockaddr *sa, socklen_t len);
+extern char *local_name(int sockfd);
+extern char *remote_name(int sockfd);
+
 /** used to crypt the communication between para_server and para_client */
 typedef void crypt_function(unsigned long len,
 	const unsigned char *indata, unsigned char *outdata, void *private_data);
 
-#include <netdb.h> /* hostent */
-int get_host_info(char *host, struct hostent **ret);
-int get_socket(void);
-void init_sockaddr(struct sockaddr_in*, int, const struct hostent*);
-int para_connect(int, struct sockaddr_in *);
+int get_stream_socket(int domain);
 int send_buffer(int, const char *);
 int send_bin_buffer(int, const char *, size_t);
 __printf_2_3 int send_va_buffer(int fd, const char *fmt, ...);
@@ -37,8 +59,29 @@ int init_unix_addr(struct sockaddr_un *, const char *);
 int recv_cred_buffer(int, char *, size_t);
 ssize_t send_cred_buffer(int, char*);
 int recv_pattern(int fd, const char *pattern, size_t bufsize);
-int init_tcp_socket(int port);
 void enable_crypt(int fd, crypt_function *recv_f, crypt_function *send_f,
 	void *private_data);
 void disable_crypt(int fd);
 
+/**
+ * A wrapper around connect(2).
+ *
+ * \param fd The file descriptor.
+ * \param addr The address to connect.
+ * \param len The size of \a addr.
+ *
+ * This should not be called directly. Always use the PARA_CONNECT macro.
+ *
+ * \return \p -E_CONNECT on errors, 1 on success.
+ *
+ * \sa connect(2), PARA_CONNECT.
+ */
+static inline int _para_connect(int fd, void *addr, socklen_t len)
+{
+	if (connect(fd, (struct sockaddr *)addr, len) == -1)
+		return -E_CONNECT;
+	return 1;
+}
+
+/** A macro for connect() which does not need a \a len parameter. */
+#define PARA_CONNECT(fd, addr) _para_connect(fd, addr, sizeof(*(addr)))