#include "rmd160.h"
#ifndef lint
#endif
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#if defined(HAVE_UNISTD_H)
# include <unistd.h>
#endif
#ifndef _DIAGASSERT
#define _DIAGASSERT(cond) assert(cond)
#endif
char *
RMD160_End(RMD160_CTX *ctx, char *buf)
{
size_t i;
char *p = buf;
uint8_t digest[20];
static const char hex[]="0123456789abcdef";
_DIAGASSERT(ctx != NULL);
if (p == NULL && (p = malloc(41)) == NULL)
return 0;
RMD160_Final(digest,ctx);
for (i = 0; i < 20; i++) {
p[i + i] = hex[(uint32_t)digest[i] >> 4];
p[i + i + 1] = hex[digest[i] & 0x0f];
}
p[i + i] = '\0';
return(p);
}
char *
RMD160_File(char *filename, char *buf)
{
uint8_t buffer[BUFSIZ];
RMD160_CTX ctx;
int fd, num, oerrno;
_DIAGASSERT(filename != NULL);
RMD160_Init(&ctx);
if ((fd = open(filename, O_RDONLY)) < 0)
return(0);
while ((num = read(fd, buffer, sizeof(buffer))) > 0)
RMD160_Update(&ctx, buffer, (size_t)num);
oerrno = errno;
close(fd);
errno = oerrno;
return(num < 0 ? 0 : RMD160_End(&ctx, buf));
}
char *
RMD160_Data(const uint8_t *data, size_t len, char *buf)
{
RMD160_CTX ctx;
_DIAGASSERT(data != NULL);
RMD160_Init(&ctx);
RMD160_Update(&ctx, data, len);
return(RMD160_End(&ctx, buf));
}