X-Git-Url: http://git.alex.org.uk

diff --git a/cliserv.h b/cliserv.h
index 569d1ce..09cb3d6 100644
--- a/cliserv.h
+++ b/cliserv.h
@@ -35,25 +35,27 @@ typedef unsigned long long u64;
 #error I need at least some 64-bit type
 #endif
 
-#ifdef NBD_H_LOCAL
+#define __be32 u32
+#define __be64 u64
 #include "nbd.h"
-#endif
-#ifdef NBD_H_LINUX
-#include <linux/nbd.h>
-#endif
 
 #if NBD_LFS==1
+/* /usr/include/features.h (included from /usr/include/sys/types.h)
+   defines this when _GNU_SOURCE is defined
+ */
+#ifndef _LARGEFILE_SOURCE
 #define _LARGEFILE_SOURCE
+#endif
 #define _FILE_OFFSET_BITS 64
 #endif
 
 u64 cliserv_magic = 0x00420281861253LL;
+u64 opts_magic = 0x49484156454F5054LL;
 #define INIT_PASSWD "NBDMAGIC"
 
 #define INFO(a) do { } while(0)
 
-void setmysockopt(int sock)
-{
+void setmysockopt(int sock) {
 	int size = 1;
 #if 0
 	if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &size, sizeof(int)) < 0)
@@ -71,12 +73,20 @@ void setmysockopt(int sock)
 #endif
 }
 
-void err(const char *s)
-{
-	const int maxlen = 150;
-	char s1[maxlen], *s2;
+#ifndef G_GNUC_NORETURN
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
+#define G_GNUC_NORETURN __attribute__((__noreturn__))
+#define G_GNUC_UNUSED __attribute__((unused))
+#else
+#define G_GNUC_NORETURN
+#define G_GNUC_UNUSED
+#endif
+#endif
+
+void err_nonfatal(const char *s) {
+	char s1[150], *s2;
 
-	strncpy(s1, s, maxlen);
+	strncpy(s1, s, sizeof(s1));
 	if ((s2 = strstr(s, "%m"))) {
 		strcpy(s1 + (s2 - s), strerror(errno));
 		s2 += 2;
@@ -91,17 +101,22 @@ void err(const char *s)
 	}
 #endif
 
-	s1[maxlen-1] = '\0';
+	s1[sizeof(s1)-1] = '\0';
 #ifdef ISSERVER
 	syslog(LOG_ERR, "%s", s1);
-#else
-	fprintf(stderr, "Error: %s\n", s1);
+	syslog(LOG_ERR, "Exiting.");
 #endif
-	exit(1);
+	fprintf(stderr, "Error: %s\nExiting.\n", s1);
 }
 
-void logging(void)
-{
+void err(const char *s) G_GNUC_NORETURN;
+
+void err(const char *s) {
+	err_nonfatal(s);
+	exit(EXIT_FAILURE);
+}
+
+void logging(void) {
 #ifdef ISSERVER
 	openlog(MY_NAME, LOG_PID, LOG_DAEMON);
 #endif
@@ -110,13 +125,11 @@ void logging(void)
 }
 
 #ifdef WORDS_BIGENDIAN
-u64 ntohll(u64 a)
-{
+u64 ntohll(u64 a) {
 	return a;
 }
 #else
-u64 ntohll(u64 a)
-{
+u64 ntohll(u64 a) {
 	u32 lo = a & 0xffffffff;
 	u32 hi = a >> 32U;
 	lo = ntohl(lo);
@@ -125,3 +138,9 @@ u64 ntohll(u64 a)
 }
 #endif
 #define htonll ntohll
+
+#define NBD_DEFAULT_PORT	"10809"	/* Port on which named exports are
+					 * served */
+
+/* Options that the client can select to the server */
+#define NBD_OPT_EXPORT_NAME	(1 << 0)	/* Client wants to select a named export (is followed by length and name of export) */