75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
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/* ----------------------------------------------------------------------------
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libconfig - A library for processing structured configuration files
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Copyright (C) 2005-2020 Mark A Lindner
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This file is part of libconfig.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License
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as published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, see
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<http://www.gnu.org/licenses/>.
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----------------------------------------------------------------------------
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*/
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#include "strbuf.h"
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#include "util.h"
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#include <string.h>
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#include <stdlib.h>
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#define STRING_BLOCK_SIZE 64
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/* ------------------------------------------------------------------------- */
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void libconfig_strbuf_ensure_capacity(strbuf_t *buf, size_t len)
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{
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static const size_t mask = ~(STRING_BLOCK_SIZE - 1);
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size_t newlen = buf->length + len + 1; /* add 1 for NUL */
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if(newlen > buf->capacity)
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{
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buf->capacity = (newlen + (STRING_BLOCK_SIZE - 1)) & mask;
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buf->string = (char *)realloc(buf->string, buf->capacity);
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}
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}
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/* ------------------------------------------------------------------------- */
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char *libconfig_strbuf_release(strbuf_t *buf)
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{
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char *r = buf->string;
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__zero(buf);
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return(r);
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}
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/* ------------------------------------------------------------------------- */
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void libconfig_strbuf_append_string(strbuf_t *buf, const char *s)
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{
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size_t len = strlen(s);
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libconfig_strbuf_ensure_capacity(buf, len);
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strcpy(buf->string + buf->length, s);
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buf->length += len;
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}
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/* ------------------------------------------------------------------------- */
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void libconfig_strbuf_append_char(strbuf_t *buf, char c)
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{
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libconfig_strbuf_ensure_capacity(buf, 1);
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*(buf->string + buf->length) = c;
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++(buf->length);
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*(buf->string + buf->length) = '\0';
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}
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/* ------------------------------------------------------------------------- */
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