2 * This file is part of DisOrder.
3 * Copyright (C) 2004 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 /** @file lib/inputline.c
35 #include "inputline.h"
37 /** @brief Read a line from @p fp
38 * @param tag Used in error messages
39 * @param fp Stream to read from
40 * @param lp Where to store newly allocated string
41 * @param newline Newline character or @ref CRLF
42 * @return 0 on success, -1 on error or eof.
44 * The newline is not included in the string. If the last line of a
45 * stream does not have a newline then that line is still returned.
47 * If @p newline is @ref CRLF then the line is terminated by CR LF,
48 * not by a single newline character. The CRLF is still not included
49 * in the string in this case.
51 * @p *lp is only set if the return value was 0.
53 int inputline(const char *tag
, FILE *fp
, char **lp
, int newline
) {
58 while((ch
= getc(fp
)),
59 (!ferror(fp
) && !feof(fp
) && ch
!= newline
)) {
60 dynstr_append(&d
, ch
);
61 if(newline
== CRLF
&& d
.nvec
>= 2
62 && d
.vec
[d
.nvec
- 2] == 0x0D && d
.vec
[d
.nvec
- 1] == 0x0A) {
68 error(errno
, "error reading %s", tag
);
72 error(0, "error reading %s: unexpected EOF", tag
);