GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/trace/trace_buf.c Lines: 0 13 0.0 %
Date: 2017-11-13 Branches: 0 6 0.0 %

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/* $OpenBSD: trace_buf.c,v 1.4 2010/01/12 23:22:07 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/****************************************************************************
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 *  Author: Thomas E. Dickey                 1997-on                        *
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 ****************************************************************************/
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/*
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 *	trace_buf.c - Tracing/Debugging buffers (attributes)
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 */
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#include <curses.priv.h>
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MODULE_ID("$Id: trace_buf.c,v 1.4 2010/01/12 23:22:07 nicm Exp $")
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#define MyList _nc_globals.tracebuf_ptr
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#define MySize _nc_globals.tracebuf_used
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static char *
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_nc_trace_alloc(int bufnum, size_t want)
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{
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#ifdef TRACE
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    char *result = 0;
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    if (bufnum >= 0) {
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	if ((size_t) (bufnum + 1) > MySize) {
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	    size_t need = (bufnum + 1) * 2;
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	    if ((MyList = typeRealloc(TRACEBUF, need, MyList)) != 0) {
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		while (need > MySize)
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		    MyList[MySize++].text = 0;
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	    }
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	}
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	if (MyList != 0) {
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	    if (MyList[bufnum].text == 0
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		|| want > MyList[bufnum].size) {
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		MyList[bufnum].text = typeRealloc(char, want, MyList[bufnum].text);
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		if (MyList[bufnum].text != 0)
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		    MyList[bufnum].size = want;
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	    }
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	    result = MyList[bufnum].text;
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	}
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    }
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#if NO_LEAKS
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    else {
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	if (MySize) {
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	    if (MyList) {
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		while (MySize--) {
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		    if (MyList[MySize].text != 0) {
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			free(MyList[MySize].text);
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		    }
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		}
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		free(MyList);
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		MyList = 0;
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	    }
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	    MySize = 0;
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	}
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    }
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#endif
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    return result;
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#else
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    return NULL;
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#endif
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}
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/*
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 * (re)Allocate a buffer big enough for the caller's wants.
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 */
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NCURSES_EXPORT(char *)
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_nc_trace_buf(int bufnum, size_t want)
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{
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    char *result = _nc_trace_alloc(bufnum, want);
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    if (result != 0)
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	*result = '\0';
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    return result;
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}
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/*
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 * Append a new string to an existing buffer.
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 */
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NCURSES_EXPORT(char *)
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_nc_trace_bufcat(int bufnum, const char *value)
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{
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    char *buffer = _nc_trace_alloc(bufnum, 0);
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    if (buffer != 0) {
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        size_t have = strlen(buffer), length;
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	length = 1 + have + strlen(value);
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	buffer = _nc_trace_alloc(bufnum, length);
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	if (buffer != 0)
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	     (void) strlcpy(buffer + have, value, length);
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    }
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    return buffer;
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}