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/*
* Copyright (c) 1996, 1997 Shigio Yamaguchi. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Shigio Yamaguchi.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* strop.c 20-Oct-97
*
*/
#include "strop.h"
#include "die.h"
/*
* usage: string buffer
*
* stropen();
* for (s = string; *s; s++)
* strputc(*s);
* s = strclose();
*/
#define EXPANDSIZE 80
static char *sbuf;
static char *endp;
static char *curp;
static int sbufsize;
static int opened;
void
stropen()
{
if (opened)
die("nested call to stropen.");
opened = 1;
/*
* allocate initial buffer.
*/
if (!sbuf)
if (!(sbuf = (char *)malloc(sbufsize + 1)))
die("short of memory.");
curp = sbuf;
endp = sbuf + sbufsize;
*curp = 0;
}
void
strputs(s)
char *s;
{
int length = strlen(s);
strnputs(s, length);
}
void
strnputs(s, length)
char *s;
int length;
{
if (curp + length > endp) {
int count = curp - sbuf;
sbufsize += (length > EXPANDSIZE) ? length : EXPANDSIZE;
if (!(sbuf = (char *)realloc(sbuf, sbufsize + 1)))
die("short of memory.");
curp = sbuf + count;
endp = sbuf + sbufsize;
}
strncpy(curp, s, length);
curp += length;
*curp = 0;
}
void
strputc(c)
int c;
{
if (curp + 1 > endp) {
int count = curp - sbuf;
sbufsize += EXPANDSIZE;
if (!(sbuf = (char *)realloc(sbuf, sbufsize + 1)))
die("short of memory.");
curp = sbuf + count;
endp = sbuf + sbufsize;
}
*curp++ = c;
*curp = 0;
}
char *
strclose()
{
opened = 0;
/*
* doesn't free area in current implementation.
*/
return sbuf;
}
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