diff options
Diffstat (limited to 'security/digest/files/sha2hl.c')
| -rw-r--r-- | security/digest/files/sha2hl.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/security/digest/files/sha2hl.c b/security/digest/files/sha2hl.c new file mode 100644 index 000000000000..00aac86f4862 --- /dev/null +++ b/security/digest/files/sha2hl.c @@ -0,0 +1,251 @@ +/* $NetBSD: sha2hl.c,v 1.1 2001/03/12 09:08:40 agc Exp $ */ + +/* + * sha2hl.c + * This code includes some functions taken from sha2.c, hence the + * following licence reproduction. + * + * This code is not a verbatim copy, since some routines have been added, + * and some bugs have been fixed. + * + * Version 1.0.0beta1 + * + * Written by Aaron D. Gifford <me@aarongifford.com> + * + * Copyright 2000 Aaron D. Gifford. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the copyright holder nor the names of contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + + +#include <sys/cdefs.h> +#ifndef lint +__RCSID("$NetBSD: sha2hl.c,v 1.1 2001/03/12 09:08:40 agc Exp $"); +#endif /* not lint */ + +#include <sys/types.h> + +/* #include "namespace.h" */ + +#include <assert.h> +#include <errno.h> +#include <fcntl.h> +#include <sha2.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#ifndef _DIAGASSERT +#define _DIAGASSERT(cond) assert(cond) +#endif + +/* + * Constant used by SHA256/384/512_End() functions for converting the + * digest to a readable hexadecimal character string: + */ +static const char sha2_hex_digits[] = "0123456789abcdef"; + +char * +SHA256_File(char *filename, char *buf) +{ + u_char buffer[BUFSIZ * 20]; + SHA256_CTX ctx; + int fd, num, oerrno; + + _DIAGASSERT(filename != NULL); + /* XXX: buf may be NULL ? */ + + SHA256_Init(&ctx); + + if ((fd = open(filename, O_RDONLY)) < 0) + return (0); + + while ((num = read(fd, buffer, sizeof(buffer))) > 0) + SHA256_Update(&ctx, buffer, (size_t) num); + + oerrno = errno; + close(fd); + errno = oerrno; + return (num < 0 ? 0 : SHA256_End(&ctx, buf)); +} + + +char * +SHA256_End(SHA256_CTX *ctx, u_char *buffer) +{ + u_char digest[SHA256_DIGEST_LENGTH], *d = digest; + u_char *ret; + int i; + + /* Sanity check: */ + assert(ctx != NULL); + + if ((ret = buffer) != NULL) { + SHA256_Final(digest, ctx); + + for (i = 0; i < SHA256_DIGEST_LENGTH; i++) { + *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4]; + *buffer++ = sha2_hex_digits[*d & 0x0f]; + d++; + } + *buffer = (char) 0; + } else { + (void) memset(ctx, 0, sizeof(SHA256_CTX)); + } + (void) memset(digest, 0, SHA256_DIGEST_LENGTH); + return ret; +} + +char * +SHA256_Data(const u_char * data, size_t len, u_char *digest) +{ + SHA256_CTX ctx; + + SHA256_Init(&ctx); + SHA256_Update(&ctx, data, len); + return SHA256_End(&ctx, digest); +} + +char * +SHA384_File(char *filename, char *buf) +{ + SHA384_CTX ctx; + u_char buffer[BUFSIZ * 20]; + int fd, num, oerrno; + + _DIAGASSERT(filename != NULL); + /* XXX: buf may be NULL ? */ + + SHA384_Init(&ctx); + + if ((fd = open(filename, O_RDONLY)) < 0) + return (0); + + while ((num = read(fd, buffer, sizeof(buffer))) > 0) + SHA384_Update(&ctx, buffer, (size_t) num); + + oerrno = errno; + close(fd); + errno = oerrno; + return (num < 0 ? 0 : SHA384_End(&ctx, buf)); +} + +char * +SHA384_End(SHA384_CTX * ctx, char buffer[]) +{ + u_char digest[SHA384_DIGEST_LENGTH], *d = digest; + u_char *ret; + int i; + + /* Sanity check: */ + assert(ctx != NULL); + + if ((ret = buffer) != NULL) { + SHA384_Final(digest, ctx); + + for (i = 0; i < SHA384_DIGEST_LENGTH; i++) { + *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4]; + *buffer++ = sha2_hex_digits[*d & 0x0f]; + d++; + } + *buffer = (char) 0; + } else { + (void) memset(ctx, 0, sizeof(SHA384_CTX)); + } + (void) memset(digest, 0, SHA384_DIGEST_LENGTH); + return ret; +} + +char * +SHA384_Data(const u_char * data, size_t len, char digest[SHA384_DIGEST_STRING_LENGTH]) +{ + SHA384_CTX ctx; + + SHA384_Init(&ctx); + SHA384_Update(&ctx, data, len); + return SHA384_End(&ctx, digest); +} + +char * +SHA512_File(char *filename, char *buf) +{ + SHA512_CTX ctx; + u_char buffer[BUFSIZ * 20]; + int fd, num, oerrno; + + _DIAGASSERT(filename != NULL); + /* XXX: buf may be NULL ? */ + + SHA512_Init(&ctx); + + if ((fd = open(filename, O_RDONLY)) < 0) + return (0); + + while ((num = read(fd, buffer, sizeof(buffer))) > 0) + SHA512_Update(&ctx, buffer, (size_t) num); + + oerrno = errno; + close(fd); + errno = oerrno; + return (num < 0 ? 0 : SHA512_End(&ctx, buf)); +} + +char * +SHA512_End(SHA512_CTX * ctx, char buffer[]) +{ + u_char digest[SHA512_DIGEST_LENGTH], *d = digest; + u_char *ret; + int i; + + /* Sanity check: */ + assert(ctx != NULL); + + if ((ret = buffer) != NULL) { + SHA512_Final(digest, ctx); + + for (i = 0; i < SHA512_DIGEST_LENGTH; i++) { + *buffer++ = sha2_hex_digits[(*d & 0xf0) >> 4]; + *buffer++ = sha2_hex_digits[*d & 0x0f]; + d++; + } + *buffer = (char) 0; + } else { + (void) memset(ctx, 0, sizeof(SHA512_CTX)); + } + (void) memset(digest, 0, SHA512_DIGEST_LENGTH); + return ret; +} + +char * +SHA512_Data(const u_char * data, size_t len, char *digest) +{ + SHA512_CTX ctx; + + SHA512_Init(&ctx); + SHA512_Update(&ctx, data, len); + return SHA512_End(&ctx, digest); +} |