1 /* t-exectool.c - Module test for exectool.c
2 * Copyright (C) 2016 g10 Code GmbH
4 * This file is part of GnuPG.
6 * GnuPG is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * GnuPG is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <https://www.gnu.org/licenses/>.
32 #define fail(msg, err) \
33 do { fprintf (stderr, "%s:%d: %s failed: %s\n", \
34 __FILE__,__LINE__, (msg), gpg_strerror (err)); \
39 test_executing_true (void)
42 const char *argv[] = { "/bin/true", NULL };
46 if (access (argv[0], X_OK))
48 fprintf (stderr, "skipping test: %s not executable: %s",
49 argv[0], strerror (errno));
54 fprintf (stderr, "Executing %s...\n", argv[0]);
56 err = gnupg_exec_tool (argv[0], &argv[1], "", &result, &len);
58 fail ("gnupg_exec_tool", err);
66 test_executing_false (void)
69 const char *argv[] = { "/bin/false", NULL };
73 if (access (argv[0], X_OK))
75 fprintf (stderr, "skipping test: %s not executable: %s",
76 argv[0], strerror (errno));
81 fprintf (stderr, "Executing %s...\n", argv[0]);
83 err = gnupg_exec_tool (argv[0], &argv[1], "", &result, &len);
84 assert (err == GPG_ERR_GENERAL);
88 test_executing_cat (const char *vector)
91 const char *argv[] = { "/bin/cat", NULL };
95 if (access (argv[0], X_OK))
97 fprintf (stderr, "skipping test: %s not executable: %s",
98 argv[0], strerror (errno));
103 fprintf (stderr, "Executing %s...\n", argv[0]);
105 err = gnupg_exec_tool (argv[0], &argv[1], vector, &result, &len);
107 fail ("gnupg_exec_tool", err);
111 /* gnupg_exec_tool returns the correct length... */
112 assert (len == strlen (vector));
113 /* ... but 0-terminates data for ease of use. */
114 assert (result[len] == 0);
116 assert (strcmp (result, vector) == 0);
122 test_catting_cat (void)
125 const char *argv[] = { "/bin/cat", "/bin/cat", NULL };
130 size_t reference_len;
132 if (access (argv[0], X_OK))
134 fprintf (stderr, "skipping test: %s not executable: %s",
135 argv[0], strerror (errno));
139 in = es_fopen (argv[1], "r");
142 fprintf (stderr, "skipping test: could not open %s: %s",
143 argv[1], strerror (errno));
147 err = es_fseek (in, 0L, SEEK_END);
150 fprintf (stderr, "skipping test: could not seek in %s: %s",
151 argv[1], gpg_strerror (err));
155 reference_len = es_ftell (in);
156 err = es_fseek (in, 0L, SEEK_SET);
157 assert (!err || !"rewinding failed");
159 reference = malloc (reference_len);
160 assert (reference || !"allocating reference buffer failed");
162 for (p = reference; p - reference < reference_len; )
164 size_t bytes_read, left;
165 left = reference_len - (p - reference);
168 err = es_read (in, p, left, &bytes_read);
171 fprintf (stderr, "error reading %s: %s",
172 argv[1], gpg_strerror (err));
181 fprintf (stderr, "Executing %s %s...\n", argv[0], argv[1]);
183 err = gnupg_exec_tool (argv[0], &argv[1], "", &result, &len);
185 fail ("gnupg_exec_tool", err);
189 /* gnupg_exec_tool returns the correct length... */
190 assert (len == reference_len);
191 assert (memcmp (result, reference, reference_len) == 0);
198 main (int argc, char **argv)
205 if (argc && !strcmp (argv[0], "--verbose"))
211 test_executing_true ();
212 test_executing_false ();
213 test_executing_cat ("Talking to myself here...");
215 for (i = 0; i < 255 /* one less */; i++)
216 binjunk[i] = i + 1; /* avoid 0 */
219 test_executing_cat (binjunk);