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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) tons of folks. Tracking down who wrote what
* isn't something I'm going to worry about... If you wrote something
* here, please feel free to acknowledge your work.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
* Permission has been granted to redistribute this code under the GPL.
*
*/
#include <stdio.h>
#include "libbb.h"
/* get_line_from_file() - This function reads an entire line from a text file
* up to a newline. It returns a malloc'ed char * which must be stored and
* free'ed by the caller. */
extern char *get_line_from_file(FILE *file)
{
static const int GROWBY = 80; /* how large we will grow strings by */
int ch;
int idx = 0;
char *linebuf = NULL;
int linebufsz = 0;
while (1) {
ch = fgetc(file);
if (ch == EOF)
break;
/* grow the line buffer as necessary */
while (idx > linebufsz-2)
linebuf = xrealloc(linebuf, linebufsz += GROWBY);
linebuf[idx++] = (char)ch;
if ((char)ch == '\n')
break;
}
if (idx == 0)
return NULL;
linebuf[idx] = 0;
return linebuf;
}
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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