| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2015 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 <pwd.h> |
| 19 | #include <stdbool.h> |
| 20 | #include <stdio.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <string.h> |
| 23 | |
| 24 | int |
| 25 | do_test (void) |
| 26 | { |
| 27 | /* Count the number of entries in the password database, and fetch |
| 28 | data from the first and last entries. */ |
| 29 | size_t count = 0; |
| 30 | struct passwd * pw; |
| 31 | char *first_name = NULL; |
| 32 | uid_t first_uid = 0; |
| 33 | char *last_name = NULL; |
| 34 | uid_t last_uid = 0; |
| 35 | setpwent (); |
| 36 | while ((pw = getpwent ()) != NULL) |
| 37 | { |
| 38 | if (first_name == NULL) |
| 39 | { |
| 40 | first_name = strdup (pw->pw_name); |
| 41 | if (first_name == NULL) |
| 42 | { |
| 43 | printf ("strdup: %m\n"); |
| 44 | return 1; |
| 45 | } |
| 46 | first_uid = pw->pw_uid; |
| 47 | } |
| 48 | |
| 49 | free (last_name); |
| 50 | last_name = strdup (pw->pw_name); |
| 51 | if (last_name == NULL) |
| 52 | { |
| 53 | printf ("strdup: %m\n"); |
| 54 | return 1; |
| 55 | } |
| 56 | last_uid = pw->pw_uid; |
| 57 | ++count; |
| 58 | } |
| 59 | endpwent (); |
| 60 | |
| 61 | if (count == 0) |
| 62 | { |
| 63 | printf ("No entries in the password database.\n"); |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | /* Try again, this time interleaving with name-based and UID-based |
| 68 | lookup operations. The counts do not match if the interleaved |
| 69 | lookups affected the enumeration. */ |
| 70 | size_t new_count = 0; |
| 71 | setpwent (); |
| 72 | while ((pw = getpwent ()) != NULL) |
| 73 | { |
| 74 | if (new_count == count) |
| 75 | { |
| 76 | printf ("Additional entry in the password database.\n"); |
| 77 | return 1; |
| 78 | } |
| 79 | ++new_count; |
| 80 | struct passwd *pw2 = getpwnam (first_name); |
| 81 | if (pw2 == NULL) |
| 82 | { |
| 83 | printf ("getpwnam (%s) failed: %m\n", first_name); |
| 84 | return 1; |
| 85 | } |
| 86 | pw2 = getpwnam (last_name); |
| 87 | if (pw2 == NULL) |
| 88 | { |
| 89 | printf ("getpwnam (%s) failed: %m\n", last_name); |
| 90 | return 1; |
| 91 | } |
| 92 | pw2 = getpwuid (first_uid); |
| 93 | if (pw2 == NULL) |
| 94 | { |
| 95 | printf ("getpwuid (%llu) failed: %m\n", |
| 96 | (unsigned long long) first_uid); |
| 97 | return 1; |
| 98 | } |
| 99 | pw2 = getpwuid (last_uid); |
| 100 | if (pw2 == NULL) |
| 101 | { |
| 102 | printf ("getpwuid (%llu) failed: %m\n", |
| 103 | (unsigned long long) last_uid); |
| 104 | return 1; |
| 105 | } |
| 106 | } |
| 107 | endpwent (); |
| 108 | if (new_count < count) |
| 109 | { |
| 110 | printf ("Missing entry in the password database.\n"); |
| 111 | return 1; |
| 112 | } |
| 113 | |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | #define TEST_FUNCTION do_test () |
| 118 | #include "../test-skeleton.c" |