Mercurial > gnulib
view lib/base32.h @ 40214:452ab00796c7
Fix undefined behaviour.
* lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to
'unsigned int', to avoid shift operations on 'int'.
* lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size.
* tests/test-count-leading-zeros.c (main): Use a random number that has
as many bits as TYPE, not only 2*15 or 2*31 bits.
* tests/test-count-trailing-zeros.c (main): Likewise.
* tests/test-count-one-bits.c (main): Likewise.
* tests/test-memmem.c: Don't include "null-ptr.h".
(main): Use zerosize_ptr() instead of null_ptr().
* modules/memmem-tests (Files): Remove tests/null-ptr.h.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 20:32:25 +0100 |
parents | b06060465f09 |
children |
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/* base32.h -- Encode binary data using printable characters. Copyright (C) 2004-2006, 2009-2019 Free Software Foundation, Inc. Adapted from Simon Josefsson's base64 code by Gijs van Tulder. 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 2, or (at your option) any later version. This program 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 this program; if not, see <https://www.gnu.org/licenses/>. */ #ifndef BASE32_H # define BASE32_H /* Get size_t. */ # include <stddef.h> /* Get bool. */ # include <stdbool.h> /* This uses that the expression (n+(k-1))/k means the smallest integer >= n/k, i.e., the ceiling of n/k. */ # define BASE32_LENGTH(inlen) ((((inlen) + 4) / 5) * 8) struct base32_decode_context { unsigned int i; char buf[8]; }; extern bool isbase32 (char ch) _GL_ATTRIBUTE_CONST; extern void base32_encode (const char *restrict in, size_t inlen, char *restrict out, size_t outlen); extern size_t base32_encode_alloc (const char *in, size_t inlen, char **out); extern void base32_decode_ctx_init (struct base32_decode_context *ctx); extern bool base32_decode_ctx (struct base32_decode_context *ctx, const char *restrict in, size_t inlen, char *restrict out, size_t *outlen); extern bool base32_decode_alloc_ctx (struct base32_decode_context *ctx, const char *in, size_t inlen, char **out, size_t *outlen); #define base32_decode(in, inlen, out, outlen) \ base32_decode_ctx (NULL, in, inlen, out, outlen) #define base32_decode_alloc(in, inlen, out, outlen) \ base32_decode_alloc_ctx (NULL, in, inlen, out, outlen) #endif /* BASE32_H */