X-Git-Url: http://git.alex.org.uk diff --git a/cliserv.h b/cliserv.h index 431358c..77310c3 100644 --- a/cliserv.h +++ b/cliserv.h @@ -9,10 +9,11 @@ Send 128 bytes of zeros (reserved for future use) */ -#include "config.h" #include #include #include +#include +#include #if SIZEOF_UNSIGNED_SHORT_INT==4 typedef unsigned short u32; @@ -34,22 +35,33 @@ typedef unsigned long long u64; #error I need at least some 64-bit type #endif -#ifdef HAVE_LINUX_NBD_H -#include -#else -/* get it from a kernel source somewhere, and dump it in this directory. - * Required for people trying to compile nbd-server on a non-linux - * system. */ +#ifdef NBD_H_LOCAL +/* 2.6.18 and above use __be* rather than u* */ +#define __be32 u32 +#define __be64 u64 #include "nbd.h" #endif +#ifdef NBD_H_LINUX +# ifdef HAVE_LINUX_TYPES_H +# include +# else +# define __be32 u32 +# define __be64 u64 +# endif +# include +#endif + +#if NBD_LFS==1 +#define _LARGEFILE_SOURCE +#define _FILE_OFFSET_BITS 64 +#endif u64 cliserv_magic = 0x00420281861253LL; #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) @@ -67,21 +79,29 @@ void setmysockopt(int sock) #endif } -void err(const char *s) -{ +#ifndef G_GNUC_NORETURN +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4) +#define G_GNUC_NORETURN __attribute__((__noreturn__)) +#else +#define G_GNUC_NORETURN +#endif +#endif + +void err(const char *s) G_GNUC_NORETURN; + +void err(const char *s) { const int maxlen = 150; char s1[maxlen], *s2; - int n = 0; strncpy(s1, s, maxlen); - if (s2 = strstr(s, "%m")) { + if ((s2 = strstr(s, "%m"))) { strcpy(s1 + (s2 - s), strerror(errno)); s2 += 2; strcpy(s1 + strlen(s1), s2); } #ifndef sun /* Solaris doesn't have %h in syslog */ - else if (s2 = strstr(s, "%h")) { + else if ((s2 = strstr(s, "%h"))) { strcpy(s1 + (s2 - s), hstrerror(h_errno)); s2 += 2; strcpy(s1 + strlen(s1), s2); @@ -90,15 +110,14 @@ void err(const char *s) s1[maxlen-1] = '\0'; #ifdef ISSERVER - syslog(LOG_ERR, s1); -#else - fprintf(stderr, "Error: %s\n", s1); + syslog(LOG_ERR, "%s", s1); + syslog(LOG_ERR, "Exiting."); #endif + fprintf(stderr, "Error: %s\nExiting.\n", s1); exit(1); } -void logging(void) -{ +void logging(void) { #ifdef ISSERVER openlog(MY_NAME, LOG_PID, LOG_DAEMON); #endif @@ -107,13 +126,11 @@ 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); @@ -122,3 +139,7 @@ u64 ntohll(u64 a) } #endif #define htonll ntohll + +/* Flags used between the client and server */ +#define NBD_FLAG_HAS_FLAGS (1 << 0) /* Flags are there */ +#define NBD_FLAG_READ_ONLY (1 << 1) /* Device is read-only */