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* cfg.mk: Remove sc_prohibit_have_config_h from local-checks-to-skip * libwget/*.c: Include <config.h> unconditionally * src/*.c: Likewise * tests/*.c: Likewise
113 lines
2.6 KiB
C
113 lines
2.6 KiB
C
/*
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* Copyright(c) 2012 Tim Ruehsen
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* Copyright(c) 2015-2016 Free Software Foundation, Inc.
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*
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* This file is part of libwget.
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*
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* Libwget is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Libwget is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libwget. If not, see <https://www.gnu.org/licenses/>.
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*
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*
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* Memory allocation routines
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*
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* Changelog
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* 25.06.2012 Tim Ruehsen created
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*
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*/
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#include <config.h>
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#include <string.h>
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#include <wget.h>
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#include "private.h"
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/**
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* \file
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* \brief Memory functions
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* \defgroup libwget-mem Memory functions
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* @{
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*
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* This is a collections of short memory function not available in standard libraries.
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*/
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/**
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* \param[in] m Memory to clone
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* \param[in] n Length of memory
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* \return Cloned memory
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*
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* Clone's the memory region \p m with length \p n.
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* Returns NULL if \p m is NULL.
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*
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* You should free() the returned pointer when not needed any more.
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*/
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void *wget_memdup(const void *m, size_t n)
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{
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return m ? memcpy(xmalloc(n), m, n) : NULL;
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}
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/**
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* \param[in] s String to clone
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* \return Cloned string
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*
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* Clone's the string \p s like strdup() does.
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* Returns NULL if \p s is NULL.
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*
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* You should free() the returned string when not needed any more.
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*/
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char *wget_strdup(const char *s)
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{
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return s ? wget_memdup(s, strlen(s) + 1) : NULL;
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}
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/**
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* \param[in] m Memory to convert into string
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* \param[in] n Length of memory
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* \return Created string
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*
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* Convert the given memory region \p m with length \p n into a C string.
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* Returns NULL if \p m is NULL.
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*
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* You should free() the returned string when not needed any more.
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*/
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char *wget_strmemdup(const void *m, size_t n)
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{
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if (!m)
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return NULL;
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char *ret = memcpy(xmalloc(n + 1), m, n);
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ret[n] = 0;
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return ret;
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}
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/**
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* \param[out] s Buffer to hold the C string output
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* \param[in] ssize Size of the output buffer
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* \param[in] m Memory to read from
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* \param[in] n Length of memory
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*
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* Convert the given memory region \p m with length \p n into a C string at \p s.
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* A max. of \p ssize - 1 is copied into \p s.
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*/
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void wget_strmemcpy(char *s, size_t ssize, const void *m, size_t n)
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{
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if (n >= ssize)
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n = ssize - 1; // truncate
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memcpy(s, m, n);
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s[n] = 0;
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}
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/**@}*/
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