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md5: use "compiler.h", WORDS_LITTLEENDIAN and make functions static

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Look for WORDS_LITTLEENDIAN instead of the gcc-specific __BYTE_ORDER.
Use our existing "compiler.h" portability layer.
Make functions which are not exported static.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2016-03-02 10:54:24 -08:00
parent 53f1559c06
commit 140c214ad0
2 changed files with 8 additions and 9 deletions
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9
md5.h
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@ -1,6 +1,7 @@
#ifndef _MD5_H_
#define _MD5_H_
#ifndef MD5_H
#define MD5_H
#include "compiler.h"
#include <inttypes.h>
#define MD5_HASHBYTES 16
@ -17,7 +18,5 @@ extern void MD5Update(MD5_CTX *context, unsigned char const *buf,
extern void MD5Final(unsigned char digest[MD5_HASHBYTES], MD5_CTX *context);
extern void MD5Transform(uint32_t buf[4], uint32_t const in[16]);
extern char * MD5End(MD5_CTX *, char *);
extern char * MD5File(const char *, char *);
extern char * MD5Data (const unsigned char *, unsigned int, char *);
#endif /* !_MD5_H_ */
#endif /* !MD5_H */

8
md5c.c
View File

@ -15,18 +15,18 @@
* will fill a supplied 16-byte array with the digest.
*/
#include <string.h> /* for memcpy() */
#include "md5.h"
#include <string.h> /* for memcpy() */
#if __BYTE_ORDER == 1234
#ifdef WORDS_LITTEENDIAN
#define byteReverse(buf, len) /* Nothing */
#else
void byteReverse(unsigned char *buf, unsigned longs);
static void byteReverse(unsigned char *buf, unsigned longs);
/*
* Note: this code is harmless on little-endian machines.
*/
void byteReverse(unsigned char *buf, unsigned longs)
static void byteReverse(unsigned char *buf, unsigned longs)
{
uint32_t t;
do {