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Add bswap64()

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This commit is contained in:
Nicolas Williams
2015-05-21 14:05:31 -05:00
parent 76965a2a14
commit 0271b171e5
4 changed files with 31 additions and 0 deletions
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8
cf/roken-frag.m4
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@@ -272,6 +272,14 @@ AC_FIND_FUNC_NO_LIBS(bswap32,,
#include <sys/bswap.h> #include <sys/bswap.h>
#endif],0) #endif],0)
AC_FIND_FUNC_NO_LIBS(bswap64,,
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_BSWAP_H
#include <sys/bswap.h>
#endif],0)
AC_FIND_FUNC_NO_LIBS(pidfile,util, AC_FIND_FUNC_NO_LIBS(pidfile,util,
[#ifdef HAVE_UTIL_H [#ifdef HAVE_UTIL_H
#include <util.h> #include <util.h>

17
lib/roken/bswap.c
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@@ -34,6 +34,23 @@
#include <config.h> #include <config.h>
#include "roken.h" #include "roken.h"
#ifndef HAVE_BSWAP64
ROKEN_LIB_FUNCTION uint64_t ROKEN_LIB_CALL
bswap64 (uint64_t val)
{
return
(val & 0xffULL) << 56 |
(val & 0xff00ULL) << 40 |
(val & 0xff0000ULL) << 24 |
(val & 0xff000000ULL) << 8 |
(val & 0xff00000000ULL) >> 8 |
(val & 0xff0000000000ULL) >> 24 |
(val & 0xff000000000000ULL) >> 40 |
(val & 0xff00000000000000ULL) >> 56 ;
}
#endif
#ifndef HAVE_BSWAP32 #ifndef HAVE_BSWAP32
ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL

5
lib/roken/roken.h.in
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@@ -765,6 +765,11 @@ ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL pidfile (const char*);
#endif #endif
#endif #endif
#ifndef HAVE_BSWAP64
#define bswap64 rk_bswap64
ROKEN_LIB_FUNCTION uint64_t ROKEN_LIB_CALL bswap64(uint64_t);
#endif
#ifndef HAVE_BSWAP32 #ifndef HAVE_BSWAP32
#define bswap32 rk_bswap32 #define bswap32 rk_bswap32
ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL bswap32(unsigned int); ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL bswap32(unsigned int);

1
lib/roken/version-script.map
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@@ -38,6 +38,7 @@ HEIMDAL_ROKEN_1.0 {
rk_base64_encode; rk_base64_encode;
rk_bswap16; rk_bswap16;
rk_bswap32; rk_bswap32;
rk_bswap64;
rk_cgetent; rk_cgetent;
rk_cgetstr; rk_cgetstr;
rk_cloexec; rk_cloexec;