mirror of
https://github.com/sheumann/hush.git
synced 2024-12-30 20:29:21 +00:00
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
|
/* 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:
|
||
|
|
*/
|