2 * This file is part of DisOrder.
3 * Copyright (C) 2004, 2007-9, 2013 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 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU 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, see <http://www.gnu.org/licenses/>.
18 /** @file lib/inputline.c
30 #include "inputline.h"
33 /** @brief Read a line from @p fp
34 * @param tag Used in error messages
35 * @param fp Stream to read from
36 * @param lp Where to store newly allocated string
37 * @param newline Newline character or @ref CRLF
38 * @return 0 on success, -1 on error or eof.
40 * The newline is not included in the string. If the last line of a
41 * stream does not have a newline then that line is still returned.
43 * If @p newline is @ref CRLF then the line is terminated by CR LF,
44 * not by a single newline character. The CRLF is still not included
45 * in the string in this case.
47 * @p *lp is only set if the return value was 0.
49 int inputline(const char *tag
, FILE *fp
, char **lp
, int newline
) {
50 struct source
*s
= source_stdio(fp
);
51 int rc
= inputlines(tag
, s
, lp
, newline
);
56 int inputlines(const char *tag
, struct source
*s
, char **lp
, int newline
) {
62 while((ch
= source_getc(s
)),
63 (!source_err(s
) && !source_eof(s
) && ch
!= newline
)) {
64 dynstr_append(&d
, ch
);
65 if(newline
== CRLF
&& d
.nvec
>= 2
66 && d
.vec
[d
.nvec
- 2] == 0x0D && d
.vec
[d
.nvec
- 1] == 0x0A) {
71 if((err
= source_err(s
))) {
72 disorder_error(0, "error reading %s: %s", tag
,
73 format_error(s
->eclass
, err
, errbuf
, sizeof errbuf
));
75 } else if(source_eof(s
)) {
77 disorder_error(0, "error reading %s: unexpected EOF", tag
);