| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2009-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <ctype.h> |
| 19 | #include <errno.h> |
| 20 | #include <gshadow.h> |
| 21 | #include <stdio.h> |
| 22 | |
| 23 | /* Define a line parsing function using the common code |
| 24 | used in the nss_files module. */ |
| 25 | |
| 26 | #define STRUCTURE sgrp |
| 27 | #define ENTNAME sgent |
| 28 | #define EXTERN_PARSER 1 |
| 29 | struct sgent_data {}; |
| 30 | |
| 31 | #include <nss/nss_files/files-parse.c> |
| 32 | |
| 33 | |
| 34 | /* Read one shadow entry from the given stream. */ |
| 35 | int |
| 36 | __fgetsgent_r (FILE *stream, struct sgrp *resbuf, char *buffer, size_t buflen, |
| 37 | struct sgrp **result) |
| 38 | { |
| 39 | char *p; |
| 40 | |
| 41 | _IO_flockfile (stream); |
| 42 | do |
| 43 | { |
| 44 | buffer[buflen - 1] = '\xff'; |
| 45 | p = fgets_unlocked (buffer, buflen, stream); |
| 46 | if (p == NULL && feof_unlocked (stream)) |
| 47 | { |
| 48 | _IO_funlockfile (stream); |
| 49 | *result = NULL; |
| 50 | __set_errno (ENOENT); |
| 51 | return errno; |
| 52 | } |
| 53 | if (p == NULL || buffer[buflen - 1] != '\xff') |
| 54 | { |
| 55 | _IO_funlockfile (stream); |
| 56 | *result = NULL; |
| 57 | __set_errno (ERANGE); |
| 58 | return errno; |
| 59 | } |
| 60 | |
| 61 | /* Skip leading blanks. */ |
| 62 | while (isspace (*p)) |
| 63 | ++p; |
| 64 | } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */ |
| 65 | /* Parse the line. If it is invalid, loop to |
| 66 | get the next line of the file to parse. */ |
| 67 | ! parse_line (buffer, (void *) resbuf, (void *) buffer, buflen, |
| 68 | &errno)); |
| 69 | |
| 70 | _IO_funlockfile (stream); |
| 71 | |
| 72 | *result = resbuf; |
| 73 | return 0; |
| 74 | } |
| 75 | weak_alias (__fgetsgent_r, fgetsgent_r) |