1 /* Implementation of __nss_parse_line_result.
2 Copyright (C) 2020-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library 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 GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <nss_files.h>
20
21 #include <assert.h>
22 #include <errno.h>
23
24 int
__nss_parse_line_result(FILE * fp,off64_t offset,int parse_line_result)25 __nss_parse_line_result (FILE *fp, off64_t offset, int parse_line_result)
26 {
27 assert (parse_line_result >= -1 && parse_line_result <= 1);
28
29 switch (__builtin_expect (parse_line_result, 1))
30 {
31 case 1:
32 /* Sucess. */
33 return 0;
34 case 0:
35 /* Parse error. */
36 __set_errno (EINVAL);
37 return EINVAL;
38 case -1:
39 /* Out of buffer space. */
40 return __nss_readline_seek (fp, offset);
41
42 default:
43 __builtin_unreachable ();
44 }
45 }
46 libc_hidden_def (__nss_parse_line_result)
47