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#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "os.h"
#include "xsha1.h"
#ifdef HAVE_SHA1_IN_LIBMD /* Use libmd for SHA1 */
# include <sha1.h>
void *x_sha1_init(void)
{
SHA1_CTX *ctx = xalloc(sizeof(*ctx));
if (!ctx)
return NULL;
SHA1Init(ctx);
return ctx;
}
int x_sha1_update(void *ctx, void *data, int size)
{
SHA1_CTX *sha1_ctx = ctx;
SHA1Update(sha1_ctx, data, size);
return 1;
}
int x_sha1_final(void *ctx, unsigned char result[20])
{
SHA1_CTX *sha1_ctx = ctx;
SHA1Final(result, sha1_ctx);
xfree(sha1_ctx);
return 1;
}
#elif defined(HAVE_SHA1_IN_LIBGCRYPT) /* Use libgcrypt for SHA1 */
# include <gcrypt.h>
void *x_sha1_init(void)
{
static int init;
gcry_md_hd_t h;
gcry_error_t err;
if (!init) {
if (!gcry_check_version(NULL))
return NULL;
gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
init = 1;
}
err = gcry_md_open(&h, GCRY_MD_SHA1, 0);
if (err)
return NULL;
return h;
}
int x_sha1_update(void *ctx, void *data, int size)
{
gcry_md_hd_t h = ctx;
gcry_md_write(h, data, size);
return 1;
}
int x_sha1_final(void *ctx, unsigned char result[20])
{
gcry_md_hd_t h = ctx;
memcpy(result, gcry_md_read(h, GCRY_MD_SHA1), 20);
gcry_md_close(h);
return 1;
}
#else /* Use OpenSSL's libcrypto */
# include <stddef.h> /* buggy openssl/sha.h wants size_t */
# include <openssl/sha.h>
void *x_sha1_init(void)
{
int ret;
SHA_CTX *ctx = xalloc(sizeof(*ctx));
if (!ctx)
return NULL;
ret = SHA1_Init(ctx);
if (!ret) {
xfree(ctx);
return NULL;
}
return ctx;
}
int x_sha1_update(void *ctx, void *data, int size)
{
int ret;
SHA_CTX *sha_ctx = ctx;
ret = SHA1_Update(sha_ctx, data, size);
if (!ret)
xfree(sha_ctx);
return ret;
}
int x_sha1_final(void *ctx, unsigned char result[20])
{
int ret;
SHA_CTX *sha_ctx = ctx;
ret = SHA1_Final(result, sha_ctx);
xfree(sha_ctx);
return ret;
}
#endif
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