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Diffstat (limited to 'Build/source/texk/gregorio/gregorio-src/src/sha1.h')
-rw-r--r-- | Build/source/texk/gregorio/gregorio-src/src/sha1.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/Build/source/texk/gregorio/gregorio-src/src/sha1.h b/Build/source/texk/gregorio/gregorio-src/src/sha1.h new file mode 100644 index 00000000000..078fd7a17ea --- /dev/null +++ b/Build/source/texk/gregorio/gregorio-src/src/sha1.h @@ -0,0 +1,85 @@ +/* + * Declarations of functions and data types used for SHA1 sum + * library functions. + * + * Copyright (C) 2015-2019 The Gregorio Project (see CONTRIBUTORS.md) + * Copyright (C) 2000-2001, 2003, 2005-2006, 2008-2014 Free Software + * Foundation, Inc. + * + * This file is part of Gregorio. + * This file has been adapted from GNU coreutils to fit Gregorio. + * + * Gregorio is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * Gregorio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Gregorio. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef SHA1_H +#define SHA1_H 1 + +#include <stddef.h> +#ifdef HAVE_STDINT_H +#include <stdint.h> +#else +#include <inttypes.h> +#endif + +#define SHA1_DIGEST_SIZE 20 + +/* Structure to save state of computation between the single steps. */ +struct sha1_ctx { + uint32_t A; + uint32_t B; + uint32_t C; + uint32_t D; + uint32_t E; + + uint32_t total[2]; + uint32_t buflen; + uint32_t buffer[32]; +}; + +/* Initialize structure containing state of computation. */ +extern void sha1_init_ctx(struct sha1_ctx *ctx); + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is necessary that LEN is a multiple of 64!!! */ +extern void sha1_process_block(const void *buffer, size_t len, + struct sha1_ctx *ctx); + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is NOT required that LEN is a multiple of 64. */ +extern void sha1_process_bytes(const void *buffer, size_t len, + struct sha1_ctx *ctx); + +/* Process the remaining bytes in the buffer and put result from CTX + in first 20 bytes following RESBUF. The result is always in little + endian byte order, so that a byte-wise output yields to the wanted + ASCII representation of the message digest. */ +extern void *sha1_finish_ctx(struct sha1_ctx *ctx, void *resbuf); + +/* Put result from CTX in first 20 bytes following RESBUF. The result is + always in little endian byte order, so that a byte-wise output yields + to the wanted ASCII representation of the message digest. */ +extern void *sha1_read_ctx(const struct sha1_ctx *ctx, void *resbuf); + +/* Compute SHA1 message digest for LEN bytes beginning at BUFFER. The + result is always in little endian byte order, so that a byte-wise + output yields to the wanted ASCII representation of the message + digest. */ +extern void *sha1_buffer(const char *buffer, size_t len, void *resblock); + +#endif |