ClamAV is an open source (GPLv2) anti-virus toolkit.
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clamav/clamav-devel/libclamav/line.c

157 lines
3.1 KiB

/*
* Copyright (C) 2004 Nigel Horne <njh@bandsman.co.uk>
*
* 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 of the License, 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Log: line.c,v $
* 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
*
*/
static char const rcsid[] = "$Id: line.c,v 1.7 2004/12/08 20:07:23 nigelhorne Exp $";
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#ifndef CL_DEBUG
#define NDEBUG /* map CLAMAV debug onto standard */
#endif
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "line.h"
#include "others.h"
#ifdef OLD
line_t *
lineCreate(const char *data)
{
line_t *ret = (line_t *)li_malloc(sizeof(struct line));
if(ret == NULL)
return NULL;
ret->l_str = strdup(data);
if(ret->l_str == NULL) {
free(ret);
return NULL;
}
ret->l_refs = 1;
return ret;
}
line_t *
lineLink(line_t *line)
{
line->l_refs++;
return line;
}
line_t *
lineUnlink(line_t *line)
{
/*printf("%d:\n\t'%s'\n", line->l_refs, line->l_str);*/
if(--line->l_refs == 0) {
free(line->l_str);
free(line);
return NULL;
}
return line;
}
const char *
lineGetData(const line_t *line)
{
return line ? line->l_str : NULL;
}
#else
line_t *
lineCreate(const char *data)
{
const size_t size = strlen(data);
line_t *ret = (line_t *)cli_malloc(size + 2);
if(ret == NULL)
return 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] == 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;
}
unsigned char
lineGetRefCount(const line_t *line)
{
return line[0];
}
#endif