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676599b3 | 1 | /* Test for processing of invalid group entries. [BZ #18724] |
bfff8b1b | 2 | Copyright (C) 2015-2017 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 | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <errno.h> | |
20 | #include <grp.h> | |
21 | #include <stdbool.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | ||
26 | static bool errors; | |
27 | ||
28 | static void | |
29 | check (struct group e, 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 = putgrent (&e, f); | |
43 | ||
44 | if (expected == NULL) | |
45 | { | |
46 | if (ret == -1) | |
47 | { | |
48 | if (errno != EINVAL) | |
49 | { | |
50 | printf ("putgrent: unexpected error code: %m\n"); | |
51 | errors = true; | |
52 | } | |
53 | } | |
54 | else | |
55 | { | |
56 | printf ("putgrent: unexpected success (\"%s\", \"%s\")\n", | |
57 | e.gr_name, e.gr_passwd); | |
58 | errors = true; | |
59 | } | |
60 | } | |
61 | else | |
62 | { | |
63 | /* Expect success. */ | |
64 | size_t expected_length = strlen (expected); | |
65 | if (ret == 0) | |
66 | { | |
67 | long written = ftell (f); | |
68 | ||
69 | if (written <= 0 || fflush (f) < 0) | |
70 | { | |
71 | printf ("stream error: %m\n"); | |
72 | errors = true; | |
73 | } | |
74 | else if (buf[written - 1] != '\n') | |
75 | { | |
76 | printf ("FAILED: \"%s\" without newline\n", expected); | |
77 | errors = true; | |
78 | } | |
79 | else if (strncmp (buf, expected, written - 1) != 0 | |
80 | || written - 1 != expected_length) | |
81 | { | |
82 | buf[written - 1] = '\0'; | |
83 | printf ("FAILED: \"%s\" (%ld), expected \"%s\" (%zu)\n", | |
84 | buf, written - 1, expected, expected_length); | |
85 | errors = true; | |
86 | } | |
87 | } | |
88 | else | |
89 | { | |
90 | printf ("FAILED: putgrent (expected \"%s\"): %m\n", expected); | |
91 | errors = true; | |
92 | } | |
93 | } | |
94 | ||
95 | fclose (f); | |
96 | free (buf); | |
97 | } | |
98 | ||
99 | static int | |
100 | do_test (void) | |
101 | { | |
102 | check ((struct group) { | |
103 | .gr_name = (char *) "root", | |
104 | }, | |
105 | "root::0:"); | |
106 | check ((struct group) { | |
107 | .gr_name = (char *) "root", | |
108 | .gr_passwd = (char *) "password", | |
109 | .gr_gid = 1234, | |
110 | .gr_mem = (char *[2]) {(char *) "member1", NULL} | |
111 | }, | |
112 | "root:password:1234:member1"); | |
113 | check ((struct group) { | |
114 | .gr_name = (char *) "root", | |
115 | .gr_passwd = (char *) "password", | |
116 | .gr_gid = 1234, | |
117 | .gr_mem = (char *[3]) {(char *) "member1", (char *) "member2", NULL} | |
118 | }, | |
119 | "root:password:1234:member1,member2"); | |
120 | ||
121 | /* Bad values. */ | |
122 | { | |
123 | static const char *const bad_strings[] = { | |
124 | ":", | |
125 | "\n", | |
126 | ":bad", | |
127 | "\nbad", | |
128 | "b:ad", | |
129 | "b\nad", | |
130 | "bad:", | |
131 | "bad\n", | |
132 | "b:a\nd" | |
133 | ",", | |
134 | "\n,", | |
135 | ":,", | |
136 | ",bad", | |
137 | "b,ad", | |
138 | "bad,", | |
139 | NULL | |
140 | }; | |
141 | for (const char *const *bad = bad_strings; *bad != NULL; ++bad) | |
142 | { | |
143 | char *members[] | |
144 | = {(char *) "first", (char *) *bad, (char *) "last", NULL}; | |
145 | if (strpbrk (*bad, ":\n") != NULL) | |
146 | { | |
147 | check ((struct group) { | |
148 | .gr_name = (char *) *bad, | |
149 | }, NULL); | |
150 | check ((struct group) { | |
151 | .gr_name = (char *) "root", | |
152 | .gr_passwd = (char *) *bad, | |
153 | }, NULL); | |
154 | } | |
155 | check ((struct group) { | |
156 | .gr_name = (char *) "root", | |
157 | .gr_passwd = (char *) "password", | |
158 | .gr_mem = members, | |
159 | }, NULL); | |
160 | } | |
161 | } | |
162 | ||
163 | return errors; | |
164 | } | |
165 | ||
166 | #define TEST_FUNCTION do_test () | |
167 | #include "../test-skeleton.c" |