104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
|
/*
|
||
|
|
* Copyright (c) 1994 Christos Zoulas
|
||
|
|
* 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 Christos Zoulas.
|
||
|
|
* 4. The name of the author may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef lint
|
||
|
|
static char *rcsid = "$Id: util.c,v 1.1 1994/12/04 17:11:07 christos Exp $";
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <err.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include "util.h"
|
||
|
|
|
||
|
|
/* emalloc():
|
||
|
|
* Error checked malloc
|
||
|
|
*/
|
||
|
|
void *
|
||
|
|
emalloc(s)
|
||
|
|
size_t s;
|
||
|
|
{
|
||
|
|
void *ptr = malloc(s);
|
||
|
|
if (ptr == NULL)
|
||
|
|
/* Crappy gcc warning! */
|
||
|
|
err(1, "%s", "");
|
||
|
|
return ptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* erealloc():
|
||
|
|
* Error checked realloc
|
||
|
|
*/
|
||
|
|
void *
|
||
|
|
erealloc(p, s)
|
||
|
|
void *p;
|
||
|
|
size_t s;
|
||
|
|
{
|
||
|
|
void *ptr = realloc(p, s);
|
||
|
|
if (ptr == NULL)
|
||
|
|
/* Crappy gcc warning! */
|
||
|
|
err(1, "%s", "");
|
||
|
|
return ptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* getline():
|
||
|
|
* Read a line from a file parsing continuations ending in \
|
||
|
|
* and eliminating trailing newlines.
|
||
|
|
*/
|
||
|
|
char *
|
||
|
|
getline(fp, size)
|
||
|
|
FILE *fp;
|
||
|
|
size_t *size;
|
||
|
|
{
|
||
|
|
size_t s, len = 0;
|
||
|
|
char *buf = NULL;
|
||
|
|
char *ptr;
|
||
|
|
int cnt = 1;
|
||
|
|
|
||
|
|
while (cnt) {
|
||
|
|
if ((ptr = fgetln(fp, &s)) == NULL) {
|
||
|
|
*size = len;
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
if (ptr[s - 1] == '\n') /* the newline may be missing at EOF */
|
||
|
|
s--; /* forget newline */
|
||
|
|
if ((cnt = (ptr[s - 1] == '\\'))) /* check for \\ */
|
||
|
|
s--; /* forget \\ */
|
||
|
|
|
||
|
|
buf = erealloc(buf, len + s + 1);
|
||
|
|
memcpy(buf + len, ptr, s);
|
||
|
|
len += s;
|
||
|
|
buf[len] = '\0';
|
||
|
|
}
|
||
|
|
*size = len;
|
||
|
|
return buf;
|
||
|
|
}
|