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/* @(#)fgetline.c 1.5 00/12/03 Copyright 1986 J. Schilling */
/*
* Copyright (c) 1986 J. Schilling
*/
/*
* 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, 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; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "io.h"
/*
* XXX should we check if HAVE_USG_STDIO is defined and
* XXX use something line memccpy to speed things up ???
*/
EXPORT int
fgetline(f, buf, len)
register FILE *f;
char *buf;
register int len;
{
register int c = '\0';
register char *bp = buf;
register int nl = '\n';
down2(f, _IOREAD, _IORW);
for(;;) {
if((c = getc(f)) < 0)
break;
if(c == nl)
break;
if (--len > 0) {
*bp++ = c;
} else {
/*
* Read up to end of line
*/
while ((c = getc(f)) >= 0 && c != nl)
;
break;
}
}
*bp = '\0';
/*
* If buffer is empty and we hit EOF, return EOF
*/
if(c < 0 && bp == buf)
return (c);
return (bp - buf);
}
EXPORT int
getline(buf, len)
char *buf;
int len;
{
return (fgetline(stdin, buf, len));
}
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