denyhosts/clamav/libclamav/line.c

118 lines
2.9 KiB
C

/*
* Copyright (C) 2013-2022 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
* Copyright (C) 2007-2013 Sourcefire, Inc.
*
* Authors: Nigel Horne
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* $Log: line.c,v $
* Revision 1.11 2007/02/12 20:46:08 njh
* Various tidy
*
* Revision 1.10 2006/04/09 19:59:27 kojm
* update GPL headers with new address for FSF
*
* Revision 1.9 2005/03/10 08:53:33 nigelhorne
* Tidy
*
* Revision 1.8 2005/03/01 11:38:11 nigelhorne
* Fix typo
*
* Revision 1.7 2004/12/08 20:07:23 nigelhorne
* Fix compilation error on Solaris
*
* Revision 1.6 2004/10/14 17:45:55 nigelhorne
* Try to reclaim some memory if it becomes low when decoding
*
* Revision 1.5 2004/09/30 08:58:56 nigelhorne
* Remove empty lines
*
* Revision 1.4 2004/09/21 14:55:26 nigelhorne
* Handle blank lines in text/plain messages
*
* Revision 1.3 2004/08/25 12:30:36 nigelhorne
* Use memcpy rather than strcpy
*
* Revision 1.2 2004/08/21 11:57:57 nigelhorne
* Use line.[ch]
*
* Revision 1.1 2004/08/20 11:58:20 nigelhorne
* First draft
*
*/
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "clamav.h"
#include "line.h"
#include "others.h"
line_t *
lineCreate(const char *data)
{
const size_t size = strlen(data);
line_t *ret = (line_t *)cli_malloc(size + 2);
if (ret == NULL) {
cli_errmsg("lineCreate: Unable to allocate memory for ret\n");
return (line_t *)NULL;
}
ret[0] = (char)1;
/*strcpy(&ret[1], data);*/
memcpy(&ret[1], data, size);
ret[size + 1] = '\0';
return ret;
}
line_t *
lineLink(line_t *line)
{
assert(line != NULL);
if ((unsigned char)line[0] == (unsigned char)255) {
cli_dbgmsg("lineLink: linkcount too large (%s)\n", lineGetData(line));
return lineCreate(lineGetData(line));
}
line[0]++;
/*printf("%d:\n\t'%s'\n", (int)line[0], &line[1]);*/
return line;
}
line_t *
lineUnlink(line_t *line)
{
/*printf("%d:\n\t'%s'\n", (int)line[0], &line[1]);*/
if (--line[0] == 0) {
free(line);
return NULL;
}
return line;
}
const char *
lineGetData(const line_t *line)
{
return line ? &line[1] : NULL;
}