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676599b3 | 1 | /* Test for processing of invalid passwd entries. [BZ #18724] |
04277e02 | 2 | Copyright (C) 2015-2019 Free Software Foundation, Inc. |
676599b3 FW |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
676599b3 FW |
18 | |
19 | #include <errno.h> | |
20 | #include <pwd.h> | |
21 | #include <stdbool.h> | |
22 | #include <stdio.h> | |
23 | #include <string.h> | |
24 | #include <stdlib.h> | |
25 | ||
26 | static bool errors; | |
27 | ||
28 | static void | |
29 | check (struct passwd p, const char *expected) | |
30 | { | |
31 | char *buf; | |
32 | size_t buf_size; | |
33 | FILE *f = open_memstream (&buf, &buf_size); | |
34 | ||
35 | if (f == NULL) | |
36 | { | |
37 | printf ("open_memstream: %m\n"); | |
38 | errors = true; | |
39 | return; | |
40 | } | |
41 | ||
42 | int ret = putpwent (&p, f); | |
43 | ||
44 | if (expected == NULL) | |
45 | { | |
46 | if (ret == -1) | |
47 | { | |
48 | if (errno != EINVAL) | |
49 | { | |
50 | printf ("putpwent: unexpected error code: %m\n"); | |
51 | errors = true; | |
52 | } | |
53 | } | |
54 | else | |
55 | { | |
56 | printf ("putpwent: unexpected success (\"%s\")\n", p.pw_name); | |
57 | errors = true; | |
58 | } | |
59 | } | |
60 | else | |
61 | { | |
62 | /* Expect success. */ | |
63 | size_t expected_length = strlen (expected); | |
64 | if (ret == 0) | |
65 | { | |
66 | long written = ftell (f); | |
67 | ||
68 | if (written <= 0 || fflush (f) < 0) | |
69 | { | |
70 | printf ("stream error: %m\n"); | |
71 | errors = true; | |
72 | } | |
73 | else if (buf[written - 1] != '\n') | |
74 | { | |
75 | printf ("FAILED: \"%s\" without newline\n", expected); | |
76 | errors = true; | |
77 | } | |
78 | else if (strncmp (buf, expected, written - 1) != 0 | |
79 | || written - 1 != expected_length) | |
80 | { | |
81 | printf ("FAILED: \"%s\" (%ld), expected \"%s\" (%zu)\n", | |
82 | buf, written - 1, expected, expected_length); | |
83 | errors = true; | |
84 | } | |
85 | } | |
86 | else | |
87 | { | |
88 | printf ("FAILED: putpwent (expected \"%s\"): %m\n", expected); | |
89 | errors = true; | |
90 | } | |
91 | } | |
92 | ||
93 | fclose (f); | |
94 | free (buf); | |
95 | } | |
96 | ||
97 | static int | |
98 | do_test (void) | |
99 | { | |
100 | check ((struct passwd) { | |
101 | .pw_name = (char *) "root", | |
102 | }, | |
103 | "root::0:0:::"); | |
104 | check ((struct passwd) { | |
105 | .pw_name = (char *) "root", | |
106 | .pw_passwd = (char *) "password", | |
107 | }, | |
108 | "root:password:0:0:::"); | |
109 | check ((struct passwd) { | |
110 | .pw_name = (char *) "root", | |
111 | .pw_passwd = (char *) "password", | |
112 | .pw_uid = 12, | |
113 | .pw_gid = 34, | |
114 | .pw_gecos = (char *) "gecos", | |
115 | .pw_dir = (char *) "home", | |
116 | .pw_shell = (char *) "shell", | |
117 | }, | |
118 | "root:password:12:34:gecos:home:shell"); | |
119 | check ((struct passwd) { | |
120 | .pw_name = (char *) "root", | |
121 | .pw_passwd = (char *) "password", | |
122 | .pw_uid = 12, | |
123 | .pw_gid = 34, | |
124 | .pw_gecos = (char *) ":ge\n:cos\n", | |
125 | .pw_dir = (char *) "home", | |
126 | .pw_shell = (char *) "shell", | |
127 | }, | |
128 | "root:password:12:34: ge cos :home:shell"); | |
129 | ||
130 | /* Bad values. */ | |
131 | { | |
132 | static const char *const bad_strings[] = { | |
133 | ":", | |
134 | "\n", | |
135 | ":bad", | |
136 | "\nbad", | |
137 | "b:ad", | |
138 | "b\nad", | |
139 | "bad:", | |
140 | "bad\n", | |
141 | "b:a\nd", | |
142 | NULL | |
143 | }; | |
144 | for (const char *const *bad = bad_strings; *bad != NULL; ++bad) | |
145 | { | |
146 | check ((struct passwd) { | |
147 | .pw_name = (char *) *bad, | |
148 | }, NULL); | |
149 | check ((struct passwd) { | |
150 | .pw_name = (char *) "root", | |
151 | .pw_passwd = (char *) *bad, | |
152 | }, NULL); | |
153 | check ((struct passwd) { | |
154 | .pw_name = (char *) "root", | |
155 | .pw_dir = (char *) *bad, | |
156 | }, NULL); | |
157 | check ((struct passwd) { | |
158 | .pw_name = (char *) "root", | |
159 | .pw_shell = (char *) *bad, | |
160 | }, NULL); | |
161 | } | |
162 | } | |
163 | ||
164 | return errors > 0; | |
165 | } | |
166 | ||
167 | #define TEST_FUNCTION do_test () | |
168 | #include "../test-skeleton.c" |