diff options
Diffstat (limited to 'lib/md5.c')
| -rw-r--r-- | lib/md5.c | 116 |
1 files changed, 11 insertions, 105 deletions
diff --git a/lib/md5.c b/lib/md5.c index e7eeeaab03f..7955665ccdb 100644 --- a/lib/md5.c +++ b/lib/md5.c @@ -4,23 +4,24 @@ Foundation, Inc. This file is part of the GNU C Library. - This program 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, or (at your option) any - later version. + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + This file 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. + GNU Lesser General Public License for more details. - You should have received a copy of the GNU General Public License - along with this program; if not, see <https://www.gnu.org/licenses/>. */ + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */ #include <config.h> +/* Specification. */ #if HAVE_OPENSSL_MD5 # define GL_OPENSSL_INLINE _GL_EXTERN_INLINE #endif @@ -28,14 +29,9 @@ #include <stdalign.h> #include <stdint.h> -#include <stdlib.h> #include <string.h> #include <sys/types.h> -#if USE_UNLOCKED_IO -# include "unlocked-io.h" -#endif - #ifdef _LIBC # include <endian.h> # if __BYTE_ORDER == __BIG_ENDIAN @@ -48,7 +44,6 @@ # define md5_process_bytes __md5_process_bytes # define md5_finish_ctx __md5_finish_ctx # define md5_read_ctx __md5_read_ctx -# define md5_stream __md5_stream # define md5_buffer __md5_buffer #endif @@ -59,12 +54,8 @@ # define SWAP(n) (n) #endif -#define BLOCKSIZE 32768 -#if BLOCKSIZE % 64 != 0 -# error "invalid BLOCKSIZE" -#endif - #if ! HAVE_OPENSSL_MD5 + /* This array contains the bytes used to pad the buffer to the next 64-byte boundary. (RFC 1321, 3.1: Step 1) */ static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ }; @@ -132,93 +123,7 @@ md5_finish_ctx (struct md5_ctx *ctx, void *resbuf) return md5_read_ctx (ctx, resbuf); } -#endif - -#if defined _LIBC || defined GL_COMPILE_CRYPTO_STREAM - -#include "af_alg.h" - -/* Compute MD5 message digest for bytes read from STREAM. The - resulting message digest number will be written into the 16 bytes - beginning at RESBLOCK. */ -int -md5_stream (FILE *stream, void *resblock) -{ - switch (afalg_stream (stream, "md5", resblock, MD5_DIGEST_SIZE)) - { - case 0: return 0; - case -EIO: return 1; - } - - char *buffer = malloc (BLOCKSIZE + 72); - if (!buffer) - return 1; - - struct md5_ctx ctx; - md5_init_ctx (&ctx); - size_t sum; - - /* Iterate over full file contents. */ - while (1) - { - /* We read the file in blocks of BLOCKSIZE bytes. One call of the - computation function processes the whole buffer so that with the - next round of the loop another block can be read. */ - size_t n; - sum = 0; - - /* Read block. Take care for partial reads. */ - while (1) - { - /* Either process a partial fread() from this loop, - or the fread() in afalg_stream may have gotten EOF. - We need to avoid a subsequent fread() as EOF may - not be sticky. For details of such systems, see: - https://sourceware.org/bugzilla/show_bug.cgi?id=1190 */ - if (feof (stream)) - goto process_partial_block; - - n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream); - - sum += n; - - if (sum == BLOCKSIZE) - break; - - if (n == 0) - { - /* Check for the error flag IFF N == 0, so that we don't - exit the loop after a partial read due to e.g., EAGAIN - or EWOULDBLOCK. */ - if (ferror (stream)) - { - free (buffer); - return 1; - } - goto process_partial_block; - } - } - - /* Process buffer with BLOCKSIZE bytes. Note that - BLOCKSIZE % 64 == 0 - */ - md5_process_block (buffer, BLOCKSIZE, &ctx); - } - -process_partial_block: - - /* Process any remaining bytes. */ - if (sum > 0) - md5_process_bytes (buffer, sum, &ctx); - - /* Construct result in desired memory. */ - md5_finish_ctx (&ctx, resblock); - free (buffer); - return 0; -} -#endif -#if ! HAVE_OPENSSL_MD5 /* Compute MD5 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 @@ -479,6 +384,7 @@ md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx) ctx->C = C; ctx->D = D; } + #endif /* |