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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
f73141d7 | 2 | |
f73141d7 | 3 | #include <fcntl.h> |
72fd79b3 | 4 | #include <limits.h> |
cf0fbc49 | 5 | #include <stdio.h> |
f73141d7 LP |
6 | #include <unistd.h> |
7 | ||
b5efdb8a | 8 | #include "alloc-util.h" |
1e5413f7 | 9 | #include "ctype.h" |
686d13b9 | 10 | #include "env-file.h" |
3ffd4af2 | 11 | #include "env-util.h" |
bca895c4 | 12 | #include "errno-util.h" |
3ffd4af2 LP |
13 | #include "fd-util.h" |
14 | #include "fileio.h" | |
627d2bac | 15 | #include "fs-util.h" |
897891f0 | 16 | #include "io-util.h" |
6bedfcbb | 17 | #include "parse-util.h" |
2708160c | 18 | #include "path-util.h" |
3ffd4af2 | 19 | #include "process-util.h" |
d3dcf4e3 | 20 | #include "random-util.h" |
b93d3f6b LP |
21 | #include "rm-rf.h" |
22 | #include "socket-util.h" | |
07630cea | 23 | #include "string-util.h" |
3ffd4af2 | 24 | #include "strv.h" |
6d7c4033 | 25 | #include "tests.h" |
e4de7287 | 26 | #include "tmpfile-util.h" |
f73141d7 | 27 | |
4f7452a8 | 28 | TEST(parse_env_file) { |
627d2bac ZJS |
29 | _cleanup_(unlink_tempfilep) char |
30 | t[] = "/tmp/test-fileio-in-XXXXXX", | |
095b30cb | 31 | p[] = "/tmp/test-fileio-out-XXXXXX"; |
f73141d7 | 32 | FILE *f; |
ebc05a09 | 33 | _cleanup_free_ char *one = NULL, *two = NULL, *three = NULL, *four = NULL, *five = NULL, |
e4a8db1f LT |
34 | *six = NULL, *seven = NULL, *eight = NULL, *nine = NULL, *ten = NULL, |
35 | *eleven = NULL, *twelve = NULL, *thirteen = NULL; | |
768100ef | 36 | _cleanup_strv_free_ char **a = NULL, **b = NULL; |
768100ef | 37 | unsigned k; |
d8351049 | 38 | int r; |
f73141d7 | 39 | |
d8351049 | 40 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
f73141d7 LP |
41 | fputs("one=BAR \n" |
42 | "# comment\n" | |
43 | " # comment \n" | |
98f59e59 | 44 | " ; comment \n" |
f73141d7 LP |
45 | " two = bar \n" |
46 | "invalid line\n" | |
98f59e59 | 47 | "invalid line #comment\n" |
f73141d7 LP |
48 | "three = \"333\n" |
49 | "xxxx\"\n" | |
50 | "four = \'44\\\"44\'\n" | |
e4a8db1f | 51 | "five = \"55\\\"55\" \"FIVE\" cinco \n" |
f73141d7 LP |
52 | "six = seis sechs\\\n" |
53 | " sis\n" | |
98f59e59 HH |
54 | "seven=\"sevenval\" #nocomment\n" |
55 | "eight=eightval #nocomment\n" | |
ebc05a09 | 56 | "export nine=nineval\n" |
99003e01 ZJS |
57 | "ten=ignored\n" |
58 | "ten=ignored\n" | |
e4a8db1f LT |
59 | "ten=\n" |
60 | "eleven=\\value\n" | |
61 | "twelve=\"\\value\"\n" | |
62 | "thirteen='\\value'", f); | |
f73141d7 LP |
63 | |
64 | fflush(f); | |
65 | fclose(f); | |
66 | ||
aa8fbc74 | 67 | r = load_env_file(NULL, t, &a); |
ebc05a09 HH |
68 | assert_se(r >= 0); |
69 | ||
70 | STRV_FOREACH(i, a) | |
71 | log_info("Got: <%s>", *i); | |
72 | ||
5fba7bbf TA |
73 | assert_se(streq_ptr(a[0], "one=BAR")); |
74 | assert_se(streq_ptr(a[1], "two=bar")); | |
75 | assert_se(streq_ptr(a[2], "three=333\nxxxx")); | |
e4a8db1f LT |
76 | assert_se(streq_ptr(a[3], "four=44\\\"44")); |
77 | assert_se(streq_ptr(a[4], "five=55\"55FIVEcinco")); | |
5fba7bbf TA |
78 | assert_se(streq_ptr(a[5], "six=seis sechs sis")); |
79 | assert_se(streq_ptr(a[6], "seven=sevenval#nocomment")); | |
80 | assert_se(streq_ptr(a[7], "eight=eightval #nocomment")); | |
81 | assert_se(streq_ptr(a[8], "export nine=nineval")); | |
82 | assert_se(streq_ptr(a[9], "ten=")); | |
e4a8db1f LT |
83 | assert_se(streq_ptr(a[10], "eleven=value")); |
84 | assert_se(streq_ptr(a[11], "twelve=\\value")); | |
85 | assert_se(streq_ptr(a[12], "thirteen=\\value")); | |
86 | assert_se(a[13] == NULL); | |
ebc05a09 | 87 | |
039f0e70 | 88 | strv_env_clean(a); |
ebc05a09 | 89 | |
ebc05a09 HH |
90 | k = 0; |
91 | STRV_FOREACH(i, b) { | |
92 | log_info("Got2: <%s>", *i); | |
93 | assert_se(streq(*i, a[k++])); | |
94 | } | |
95 | ||
f73141d7 | 96 | r = parse_env_file( |
aa8fbc74 | 97 | NULL, t, |
f73141d7 LP |
98 | "one", &one, |
99 | "two", &two, | |
100 | "three", &three, | |
101 | "four", &four, | |
102 | "five", &five, | |
103 | "six", &six, | |
104 | "seven", &seven, | |
db537209 | 105 | "eight", &eight, |
ebc05a09 | 106 | "export nine", &nine, |
e4a8db1f LT |
107 | "ten", &ten, |
108 | "eleven", &eleven, | |
109 | "twelve", &twelve, | |
110 | "thirteen", &thirteen); | |
99aad9a2 | 111 | assert_se(r == 0); |
f73141d7 LP |
112 | |
113 | log_info("one=[%s]", strna(one)); | |
114 | log_info("two=[%s]", strna(two)); | |
115 | log_info("three=[%s]", strna(three)); | |
116 | log_info("four=[%s]", strna(four)); | |
117 | log_info("five=[%s]", strna(five)); | |
118 | log_info("six=[%s]", strna(six)); | |
119 | log_info("seven=[%s]", strna(seven)); | |
db537209 | 120 | log_info("eight=[%s]", strna(eight)); |
ebc05a09 HH |
121 | log_info("export nine=[%s]", strna(nine)); |
122 | log_info("ten=[%s]", strna(nine)); | |
e4a8db1f LT |
123 | log_info("eleven=[%s]", strna(eleven)); |
124 | log_info("twelve=[%s]", strna(twelve)); | |
125 | log_info("thirteen=[%s]", strna(thirteen)); | |
f73141d7 LP |
126 | |
127 | assert_se(streq(one, "BAR")); | |
128 | assert_se(streq(two, "bar")); | |
129 | assert_se(streq(three, "333\nxxxx")); | |
e4a8db1f LT |
130 | assert_se(streq(four, "44\\\"44")); |
131 | assert_se(streq(five, "55\"55FIVEcinco")); | |
f73141d7 | 132 | assert_se(streq(six, "seis sechs sis")); |
98f59e59 HH |
133 | assert_se(streq(seven, "sevenval#nocomment")); |
134 | assert_se(streq(eight, "eightval #nocomment")); | |
ebc05a09 HH |
135 | assert_se(streq(nine, "nineval")); |
136 | assert_se(ten == NULL); | |
e4a8db1f LT |
137 | assert_se(streq(eleven, "value")); |
138 | assert_se(streq(twelve, "\\value")); | |
139 | assert_se(streq(thirteen, "\\value")); | |
f73141d7 | 140 | |
d8351049 ZJS |
141 | { |
142 | /* prepare a temporary file to write the environment to */ | |
143 | _cleanup_close_ int fd = mkostemp_safe(p); | |
144 | assert_se(fd >= 0); | |
145 | } | |
146 | ||
095b30cb | 147 | r = write_env_file(p, a); |
98f59e59 HH |
148 | assert_se(r >= 0); |
149 | ||
aa8fbc74 | 150 | r = load_env_file(NULL, p, &b); |
98f59e59 | 151 | assert_se(r >= 0); |
f73141d7 LP |
152 | } |
153 | ||
df8b14b5 LP |
154 | static void test_one_shell_var(const char *file, const char *variable, const char *value) { |
155 | _cleanup_free_ char *cmd = NULL, *from_shell = NULL; | |
649bde89 | 156 | _cleanup_pclose_ FILE *f = NULL; |
df8b14b5 LP |
157 | size_t sz; |
158 | ||
159 | assert_se(cmd = strjoin(". ", file, " && /bin/echo -n \"$", variable, "\"")); | |
160 | assert_se(f = popen(cmd, "re")); | |
161 | assert_se(read_full_stream(f, &from_shell, &sz) >= 0); | |
162 | assert_se(sz == strlen(value)); | |
163 | assert_se(streq(from_shell, value)); | |
164 | } | |
165 | ||
4f7452a8 | 166 | TEST(parse_multiline_env_file) { |
627d2bac ZJS |
167 | _cleanup_(unlink_tempfilep) char |
168 | t[] = "/tmp/test-fileio-in-XXXXXX", | |
ac4c8d6d | 169 | p[] = "/tmp/test-fileio-out-XXXXXX"; |
ac4c8d6d ZJS |
170 | FILE *f; |
171 | _cleanup_strv_free_ char **a = NULL, **b = NULL; | |
d8351049 | 172 | int r; |
ac4c8d6d | 173 | |
d8351049 | 174 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
ac4c8d6d | 175 | fputs("one=BAR\\\n" |
6fe31963 LP |
176 | "\\ \\ \\ \\ VAR\\\n" |
177 | "\\\tGAR\n" | |
ac4c8d6d ZJS |
178 | "#comment\n" |
179 | "two=\"bar\\\n" | |
180 | " var\\\n" | |
181 | "\tgar\"\n" | |
182 | "#comment\n" | |
183 | "tri=\"bar \\\n" | |
184 | " var \\\n" | |
185 | "\tgar \"\n", f); | |
186 | ||
6fe31963 | 187 | assert_se(fflush_and_check(f) >= 0); |
ac4c8d6d ZJS |
188 | fclose(f); |
189 | ||
df8b14b5 LP |
190 | test_one_shell_var(t, "one", "BAR VAR\tGAR"); |
191 | test_one_shell_var(t, "two", "bar var\tgar"); | |
192 | test_one_shell_var(t, "tri", "bar var \tgar "); | |
193 | ||
aa8fbc74 | 194 | r = load_env_file(NULL, t, &a); |
ac4c8d6d ZJS |
195 | assert_se(r >= 0); |
196 | ||
197 | STRV_FOREACH(i, a) | |
198 | log_info("Got: <%s>", *i); | |
199 | ||
5fba7bbf TA |
200 | assert_se(streq_ptr(a[0], "one=BAR VAR\tGAR")); |
201 | assert_se(streq_ptr(a[1], "two=bar var\tgar")); | |
202 | assert_se(streq_ptr(a[2], "tri=bar var \tgar ")); | |
ac4c8d6d ZJS |
203 | assert_se(a[3] == NULL); |
204 | ||
d8351049 ZJS |
205 | { |
206 | _cleanup_close_ int fd = mkostemp_safe(p); | |
207 | assert_se(fd >= 0); | |
208 | } | |
209 | ||
ac4c8d6d ZJS |
210 | r = write_env_file(p, a); |
211 | assert_se(r >= 0); | |
212 | ||
aa8fbc74 | 213 | r = load_env_file(NULL, p, &b); |
ac4c8d6d | 214 | assert_se(r >= 0); |
ac4c8d6d ZJS |
215 | } |
216 | ||
4f7452a8 | 217 | TEST(merge_env_file) { |
627d2bac | 218 | _cleanup_(unlink_tempfilep) char t[] = "/tmp/test-fileio-XXXXXX"; |
9707d552 | 219 | _cleanup_fclose_ FILE *f = NULL; |
37f3ffca | 220 | _cleanup_strv_free_ char **a = NULL; |
d8351049 | 221 | int r; |
37f3ffca | 222 | |
d8351049 | 223 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
37f3ffca RS |
224 | log_info("/* %s (%s) */", __func__, t); |
225 | ||
37f3ffca RS |
226 | r = write_string_stream(f, |
227 | "one=1 \n" | |
228 | "twelve=${one}2\n" | |
229 | "twentyone=2${one}\n" | |
230 | "one=2\n" | |
ccad1fd0 ZJS |
231 | "twentytwo=2${one}\n" |
232 | "xxx_minus_three=$xxx - 3\n" | |
233 | "xxx=0x$one$one$one\n" | |
b82f58bf RS |
234 | "yyy=${one:-fallback}\n" |
235 | "zzz=${one:+replacement}\n" | |
236 | "zzzz=${foobar:-${nothing}}\n" | |
237 | "zzzzz=${nothing:+${nothing}}\n" | |
b1837133 | 238 | , WRITE_STRING_FILE_AVOID_NEWLINE); |
f21b863e | 239 | assert_se(r >= 0); |
37f3ffca RS |
240 | |
241 | r = merge_env_file(&a, NULL, t); | |
242 | assert_se(r >= 0); | |
243 | strv_sort(a); | |
244 | ||
245 | STRV_FOREACH(i, a) | |
246 | log_info("Got: <%s>", *i); | |
247 | ||
248 | assert_se(streq(a[0], "one=2")); | |
249 | assert_se(streq(a[1], "twelve=12")); | |
250 | assert_se(streq(a[2], "twentyone=21")); | |
251 | assert_se(streq(a[3], "twentytwo=22")); | |
ccad1fd0 ZJS |
252 | assert_se(streq(a[4], "xxx=0x222")); |
253 | assert_se(streq(a[5], "xxx_minus_three= - 3")); | |
b82f58bf RS |
254 | assert_se(streq(a[6], "yyy=2")); |
255 | assert_se(streq(a[7], "zzz=replacement")); | |
256 | assert_se(streq(a[8], "zzzz=")); | |
257 | assert_se(streq(a[9], "zzzzz=")); | |
258 | assert_se(a[10] == NULL); | |
37f3ffca RS |
259 | |
260 | r = merge_env_file(&a, NULL, t); | |
261 | assert_se(r >= 0); | |
262 | strv_sort(a); | |
263 | ||
264 | STRV_FOREACH(i, a) | |
265 | log_info("Got2: <%s>", *i); | |
266 | ||
267 | assert_se(streq(a[0], "one=2")); | |
268 | assert_se(streq(a[1], "twelve=12")); | |
269 | assert_se(streq(a[2], "twentyone=21")); | |
270 | assert_se(streq(a[3], "twentytwo=22")); | |
ccad1fd0 ZJS |
271 | assert_se(streq(a[4], "xxx=0x222")); |
272 | assert_se(streq(a[5], "xxx_minus_three=0x222 - 3")); | |
b82f58bf RS |
273 | assert_se(streq(a[6], "yyy=2")); |
274 | assert_se(streq(a[7], "zzz=replacement")); | |
275 | assert_se(streq(a[8], "zzzz=")); | |
276 | assert_se(streq(a[9], "zzzzz=")); | |
277 | assert_se(a[10] == NULL); | |
37f3ffca | 278 | } |
ac4c8d6d | 279 | |
4f7452a8 | 280 | TEST(merge_env_file_invalid) { |
627d2bac | 281 | _cleanup_(unlink_tempfilep) char t[] = "/tmp/test-fileio-XXXXXX"; |
9707d552 | 282 | _cleanup_fclose_ FILE *f = NULL; |
184d1904 | 283 | _cleanup_strv_free_ char **a = NULL; |
d8351049 | 284 | int r; |
184d1904 | 285 | |
d8351049 | 286 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
184d1904 ZJS |
287 | log_info("/* %s (%s) */", __func__, t); |
288 | ||
184d1904 ZJS |
289 | r = write_string_stream(f, |
290 | "unset one \n" | |
291 | "unset one= \n" | |
292 | "unset one=1 \n" | |
293 | "one \n" | |
294 | "one = \n" | |
295 | "one two =\n" | |
296 | "\x20two=\n" | |
297 | "#comment=comment\n" | |
298 | ";comment2=comment2\n" | |
299 | "#\n" | |
300 | "\n\n" /* empty line */ | |
b1837133 | 301 | , WRITE_STRING_FILE_AVOID_NEWLINE); |
f21b863e | 302 | assert_se(r >= 0); |
184d1904 ZJS |
303 | |
304 | r = merge_env_file(&a, NULL, t); | |
305 | assert_se(r >= 0); | |
306 | ||
307 | STRV_FOREACH(i, a) | |
308 | log_info("Got: <%s>", *i); | |
309 | ||
310 | assert_se(strv_isempty(a)); | |
311 | } | |
312 | ||
4f7452a8 | 313 | TEST(executable_is_script) { |
627d2bac | 314 | _cleanup_(unlink_tempfilep) char t[] = "/tmp/test-fileio-XXXXXX"; |
627d2bac | 315 | _cleanup_fclose_ FILE *f = NULL; |
68fee104 | 316 | char *command; |
d8351049 | 317 | int r; |
68fee104 | 318 | |
d8351049 | 319 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
68fee104 ZJS |
320 | fputs("#! /bin/script -a -b \ngoo goo", f); |
321 | fflush(f); | |
322 | ||
323 | r = executable_is_script(t, &command); | |
324 | assert_se(r > 0); | |
325 | assert_se(streq(command, "/bin/script")); | |
326 | free(command); | |
327 | ||
328 | r = executable_is_script("/bin/sh", &command); | |
329 | assert_se(r == 0); | |
330 | ||
331 | r = executable_is_script("/usr/bin/yum", &command); | |
332 | assert_se(r > 0 || r == -ENOENT); | |
333 | if (r > 0) { | |
334 | assert_se(startswith(command, "/")); | |
335 | free(command); | |
336 | } | |
68fee104 ZJS |
337 | } |
338 | ||
4f7452a8 | 339 | TEST(status_field) { |
1e5413f7 ZJS |
340 | _cleanup_free_ char *t = NULL, *p = NULL, *s = NULL, *z = NULL; |
341 | unsigned long long total = 0, buffers = 0; | |
442e0083 | 342 | int r; |
69ab8088 | 343 | |
c4cd1d4d | 344 | assert_se(get_proc_field("/proc/self/status", "Threads", WHITESPACE, &t) == 0); |
69ab8088 ZJS |
345 | puts(t); |
346 | assert_se(streq(t, "1")); | |
347 | ||
c4cd1d4d | 348 | r = get_proc_field("/proc/meminfo", "MemTotal", WHITESPACE, &p); |
1e5413f7 | 349 | if (r != -ENOENT) { |
bdf7026e | 350 | assert_se(r == 0); |
1e5413f7 ZJS |
351 | puts(p); |
352 | assert_se(safe_atollu(p, &total) == 0); | |
353 | } | |
69ab8088 | 354 | |
c4cd1d4d | 355 | r = get_proc_field("/proc/meminfo", "Buffers", WHITESPACE, &s); |
1e5413f7 | 356 | if (r != -ENOENT) { |
bdf7026e | 357 | assert_se(r == 0); |
1e5413f7 ZJS |
358 | puts(s); |
359 | assert_se(safe_atollu(s, &buffers) == 0); | |
360 | } | |
69ab8088 | 361 | |
2b01a801 | 362 | if (p) |
bdf7026e | 363 | assert_se(buffers < total); |
1e5413f7 ZJS |
364 | |
365 | /* Seccomp should be a good test for field full of zeros. */ | |
c4cd1d4d | 366 | r = get_proc_field("/proc/meminfo", "Seccomp", WHITESPACE, &z); |
1e5413f7 | 367 | if (r != -ENOENT) { |
bdf7026e | 368 | assert_se(r == 0); |
1e5413f7 ZJS |
369 | puts(z); |
370 | assert_se(safe_atollu(z, &buffers) == 0); | |
371 | } | |
372 | } | |
373 | ||
4f7452a8 | 374 | TEST(capeff) { |
d12ccbc3 | 375 | for (int pid = 0; pid < 2; pid++) { |
1e5413f7 | 376 | _cleanup_free_ char *capeff = NULL; |
d12ccbc3 | 377 | int r, p; |
1e5413f7 ZJS |
378 | |
379 | r = get_process_capeff(0, &capeff); | |
380 | log_info("capeff: '%s' (r=%d)", capeff, r); | |
381 | ||
4c701096 | 382 | if (IN_SET(r, -ENOENT, -EPERM)) |
1e5413f7 ZJS |
383 | return; |
384 | ||
bdf7026e TA |
385 | assert_se(r == 0); |
386 | assert_se(*capeff); | |
1a7906ae | 387 | p = capeff[strspn(capeff, HEXDIGITS)]; |
bdf7026e | 388 | assert_se(!p || isspace(p)); |
1e5413f7 | 389 | } |
69ab8088 ZJS |
390 | } |
391 | ||
4f7452a8 | 392 | TEST(write_string_stream) { |
627d2bac ZJS |
393 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-write_string_stream-XXXXXX"; |
394 | _cleanup_fclose_ FILE *f = NULL; | |
0709b743 RC |
395 | int fd; |
396 | char buf[64]; | |
397 | ||
646853bd | 398 | fd = mkostemp_safe(fn); |
0709b743 RC |
399 | assert_se(fd >= 0); |
400 | ||
401 | f = fdopen(fd, "r"); | |
402 | assert_se(f); | |
b1837133 | 403 | assert_se(write_string_stream(f, "boohoo", 0) < 0); |
36297390 | 404 | f = safe_fclose(f); |
0709b743 | 405 | |
36297390 | 406 | f = fopen(fn, "r+"); |
0709b743 RC |
407 | assert_se(f); |
408 | ||
b1837133 | 409 | assert_se(write_string_stream(f, "boohoo", 0) == 0); |
0709b743 RC |
410 | rewind(f); |
411 | ||
412 | assert_se(fgets(buf, sizeof(buf), f)); | |
413 | assert_se(streq(buf, "boohoo\n")); | |
36297390 | 414 | f = safe_fclose(f); |
0709b743 | 415 | |
36297390 | 416 | f = fopen(fn, "w+"); |
40beecdb DM |
417 | assert_se(f); |
418 | ||
b1837133 | 419 | assert_se(write_string_stream(f, "boohoo", WRITE_STRING_FILE_AVOID_NEWLINE) == 0); |
40beecdb DM |
420 | rewind(f); |
421 | ||
422 | assert_se(fgets(buf, sizeof(buf), f)); | |
423 | printf(">%s<", buf); | |
424 | assert_se(streq(buf, "boohoo")); | |
0709b743 RC |
425 | } |
426 | ||
4f7452a8 | 427 | TEST(write_string_file) { |
627d2bac | 428 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-write_string_file-XXXXXX"; |
76082570 RC |
429 | char buf[64] = {}; |
430 | _cleanup_close_ int fd; | |
0709b743 | 431 | |
646853bd | 432 | fd = mkostemp_safe(fn); |
0709b743 RC |
433 | assert_se(fd >= 0); |
434 | ||
4c1fc3e4 | 435 | assert_se(write_string_file(fn, "boohoo", WRITE_STRING_FILE_CREATE) == 0); |
0709b743 | 436 | |
cca0efb0 | 437 | assert_se(read(fd, buf, sizeof(buf)) == 7); |
0709b743 | 438 | assert_se(streq(buf, "boohoo\n")); |
0709b743 RC |
439 | } |
440 | ||
4f7452a8 | 441 | TEST(write_string_file_no_create) { |
627d2bac | 442 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-write_string_file_no_create-XXXXXX"; |
e07995a3 | 443 | _cleanup_close_ int fd; |
2aa07538 | 444 | char buf[64] = {}; |
e07995a3 | 445 | |
646853bd | 446 | fd = mkostemp_safe(fn); |
e07995a3 RC |
447 | assert_se(fd >= 0); |
448 | ||
4c1fc3e4 DM |
449 | assert_se(write_string_file("/a/file/which/does/not/exists/i/guess", "boohoo", 0) < 0); |
450 | assert_se(write_string_file(fn, "boohoo", 0) == 0); | |
e07995a3 | 451 | |
2aa07538 | 452 | assert_se(read(fd, buf, sizeof buf) == (ssize_t) strlen("boohoo\n")); |
e07995a3 | 453 | assert_se(streq(buf, "boohoo\n")); |
e07995a3 RC |
454 | } |
455 | ||
4f7452a8 | 456 | TEST(write_string_file_verify) { |
eb3da901 LP |
457 | _cleanup_free_ char *buf = NULL, *buf2 = NULL; |
458 | int r; | |
459 | ||
3c14dc61 TM |
460 | r = read_one_line_file("/proc/version", &buf); |
461 | if (ERRNO_IS_PRIVILEGE(r)) | |
462 | return; | |
463 | assert_se(r >= 0); | |
dcd6361e | 464 | assert_se(buf2 = strjoin(buf, "\n")); |
eb3da901 | 465 | |
30b84c78 | 466 | r = write_string_file("/proc/version", buf, 0); |
4c701096 | 467 | assert_se(IN_SET(r, -EACCES, -EIO)); |
30b84c78 | 468 | r = write_string_file("/proc/version", buf2, 0); |
4c701096 | 469 | assert_se(IN_SET(r, -EACCES, -EIO)); |
eb3da901 | 470 | |
30b84c78 ZJS |
471 | assert_se(write_string_file("/proc/version", buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE) == 0); |
472 | assert_se(write_string_file("/proc/version", buf2, WRITE_STRING_FILE_VERIFY_ON_FAILURE) == 0); | |
eb3da901 | 473 | |
30b84c78 | 474 | r = write_string_file("/proc/version", buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE|WRITE_STRING_FILE_AVOID_NEWLINE); |
4c701096 | 475 | assert_se(IN_SET(r, -EACCES, -EIO)); |
30b84c78 | 476 | assert_se(write_string_file("/proc/version", buf2, WRITE_STRING_FILE_VERIFY_ON_FAILURE|WRITE_STRING_FILE_AVOID_NEWLINE) == 0); |
eb3da901 LP |
477 | } |
478 | ||
4f7452a8 | 479 | TEST(load_env_file_pairs) { |
627d2bac ZJS |
480 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-load_env_file_pairs-XXXXXX"; |
481 | int fd, r; | |
e07995a3 RC |
482 | _cleanup_fclose_ FILE *f = NULL; |
483 | _cleanup_strv_free_ char **l = NULL; | |
e07995a3 | 484 | |
646853bd | 485 | fd = mkostemp_safe(fn); |
e07995a3 RC |
486 | assert_se(fd >= 0); |
487 | ||
488 | r = write_string_file(fn, | |
489 | "NAME=\"Arch Linux\"\n" | |
490 | "ID=arch\n" | |
491 | "PRETTY_NAME=\"Arch Linux\"\n" | |
492 | "ANSI_COLOR=\"0;36\"\n" | |
493 | "HOME_URL=\"https://www.archlinux.org/\"\n" | |
494 | "SUPPORT_URL=\"https://bbs.archlinux.org/\"\n" | |
4c1fc3e4 DM |
495 | "BUG_REPORT_URL=\"https://bugs.archlinux.org/\"\n", |
496 | WRITE_STRING_FILE_CREATE); | |
e07995a3 RC |
497 | assert_se(r == 0); |
498 | ||
499 | f = fdopen(fd, "r"); | |
500 | assert_se(f); | |
501 | ||
aa8fbc74 | 502 | r = load_env_file_pairs(f, fn, &l); |
e07995a3 RC |
503 | assert_se(r >= 0); |
504 | ||
505 | assert_se(strv_length(l) == 14); | |
506 | STRV_FOREACH_PAIR(k, v, l) { | |
507 | assert_se(STR_IN_SET(*k, "NAME", "ID", "PRETTY_NAME", "ANSI_COLOR", "HOME_URL", "SUPPORT_URL", "BUG_REPORT_URL")); | |
508 | printf("%s=%s\n", *k, *v); | |
509 | if (streq(*k, "NAME")) assert_se(streq(*v, "Arch Linux")); | |
510 | if (streq(*k, "ID")) assert_se(streq(*v, "arch")); | |
511 | if (streq(*k, "PRETTY_NAME")) assert_se(streq(*v, "Arch Linux")); | |
512 | if (streq(*k, "ANSI_COLOR")) assert_se(streq(*v, "0;36")); | |
513 | if (streq(*k, "HOME_URL")) assert_se(streq(*v, "https://www.archlinux.org/")); | |
514 | if (streq(*k, "SUPPORT_URL")) assert_se(streq(*v, "https://bbs.archlinux.org/")); | |
515 | if (streq(*k, "BUG_REPORT_URL")) assert_se(streq(*v, "https://bugs.archlinux.org/")); | |
516 | } | |
e07995a3 RC |
517 | } |
518 | ||
4f7452a8 | 519 | TEST(search_and_fopen) { |
2708160c LP |
520 | static const char* const dirs[] = { |
521 | "/tmp/foo/bar", | |
522 | "/tmp", | |
523 | NULL | |
524 | }; | |
897891f0 | 525 | char name[] = "/tmp/test-search_and_fopen.XXXXXX"; |
2708160c LP |
526 | _cleanup_fclose_ FILE *f = NULL; |
527 | _cleanup_free_ char *p = NULL; | |
254d1313 | 528 | _cleanup_close_ int fd = -EBADF; |
2708160c LP |
529 | const char *e; |
530 | int r; | |
897891f0 | 531 | |
646853bd | 532 | fd = mkostemp_safe(name); |
897891f0 | 533 | assert_se(fd >= 0); |
2708160c | 534 | fd = safe_close(fd); |
897891f0 | 535 | |
2708160c | 536 | r = search_and_fopen(basename(name), "re", NULL, (const char**) dirs, &f, &p); |
897891f0 | 537 | assert_se(r >= 0); |
2708160c LP |
538 | assert_se(e = path_startswith(p, "/tmp/")); |
539 | assert_se(streq(basename(name), e)); | |
540 | f = safe_fclose(f); | |
541 | p = mfree(p); | |
897891f0 | 542 | |
2708160c | 543 | r = search_and_fopen(name, "re", NULL, (const char**) dirs, &f, &p); |
897891f0 | 544 | assert_se(r >= 0); |
2708160c LP |
545 | assert_se(path_equal(name, p)); |
546 | f = safe_fclose(f); | |
547 | p = mfree(p); | |
897891f0 | 548 | |
2708160c | 549 | r = search_and_fopen(basename(name), "re", "/", (const char**) dirs, &f, &p); |
897891f0 | 550 | assert_se(r >= 0); |
2708160c LP |
551 | assert_se(e = path_startswith(p, "/tmp/")); |
552 | assert_se(streq(basename(name), e)); | |
553 | f = safe_fclose(f); | |
554 | p = mfree(p); | |
897891f0 | 555 | |
a3ee0916 | 556 | r = search_and_fopen("/a/file/which/does/not/exist/i/guess", "re", NULL, (const char**) dirs, &f, &p); |
2708160c | 557 | assert_se(r == -ENOENT); |
a3ee0916 | 558 | r = search_and_fopen("afilewhichdoesnotexistiguess", "re", NULL, (const char**) dirs, &f, &p); |
2708160c | 559 | assert_se(r == -ENOENT); |
897891f0 RC |
560 | |
561 | r = unlink(name); | |
562 | assert_se(r == 0); | |
563 | ||
a3ee0916 | 564 | r = search_and_fopen(basename(name), "re", NULL, (const char**) dirs, &f, &p); |
2708160c | 565 | assert_se(r == -ENOENT); |
897891f0 RC |
566 | } |
567 | ||
4f7452a8 | 568 | TEST(search_and_fopen_nulstr) { |
2708160c LP |
569 | static const char dirs[] = |
570 | "/tmp/foo/bar\0" | |
571 | "/tmp\0"; | |
627d2bac ZJS |
572 | |
573 | _cleanup_(unlink_tempfilep) char name[] = "/tmp/test-search_and_fopen.XXXXXX"; | |
2708160c LP |
574 | _cleanup_fclose_ FILE *f = NULL; |
575 | _cleanup_free_ char *p = NULL; | |
254d1313 | 576 | _cleanup_close_ int fd = -EBADF; |
2708160c LP |
577 | const char *e; |
578 | int r; | |
897891f0 | 579 | |
646853bd | 580 | fd = mkostemp_safe(name); |
897891f0 | 581 | assert_se(fd >= 0); |
2708160c | 582 | fd = safe_close(fd); |
897891f0 | 583 | |
2708160c | 584 | r = search_and_fopen_nulstr(basename(name), "re", NULL, dirs, &f, &p); |
897891f0 | 585 | assert_se(r >= 0); |
2708160c LP |
586 | assert_se(e = path_startswith(p, "/tmp/")); |
587 | assert_se(streq(basename(name), e)); | |
588 | f = safe_fclose(f); | |
589 | p = mfree(p); | |
897891f0 | 590 | |
2708160c | 591 | r = search_and_fopen_nulstr(name, "re", NULL, dirs, &f, &p); |
897891f0 | 592 | assert_se(r >= 0); |
2708160c LP |
593 | assert_se(path_equal(name, p)); |
594 | f = safe_fclose(f); | |
595 | p = mfree(p); | |
897891f0 | 596 | |
a3ee0916 | 597 | r = search_and_fopen_nulstr("/a/file/which/does/not/exist/i/guess", "re", NULL, dirs, &f, &p); |
2708160c | 598 | assert_se(r == -ENOENT); |
a3ee0916 | 599 | r = search_and_fopen_nulstr("afilewhichdoesnotexistiguess", "re", NULL, dirs, &f, &p); |
2708160c | 600 | assert_se(r == -ENOENT); |
897891f0 RC |
601 | |
602 | r = unlink(name); | |
603 | assert_se(r == 0); | |
604 | ||
a3ee0916 | 605 | r = search_and_fopen_nulstr(basename(name), "re", NULL, dirs, &f, &p); |
2708160c | 606 | assert_se(r == -ENOENT); |
897891f0 RC |
607 | } |
608 | ||
4f7452a8 | 609 | TEST(writing_tmpfile) { |
627d2bac | 610 | _cleanup_(unlink_tempfilep) char name[] = "/tmp/test-systemd_writing_tmpfile.XXXXXX"; |
897891f0 RC |
611 | _cleanup_free_ char *contents = NULL; |
612 | size_t size; | |
254d1313 | 613 | _cleanup_close_ int fd = -EBADF; |
627d2bac | 614 | int r; |
897891f0 | 615 | |
d12ccbc3 ZJS |
616 | struct iovec iov[] = { |
617 | IOVEC_MAKE_STRING("abc\n"), | |
618 | IOVEC_MAKE_STRING(ALPHANUMERICAL "\n"), | |
619 | IOVEC_MAKE_STRING(""), | |
620 | }; | |
897891f0 | 621 | |
646853bd | 622 | fd = mkostemp_safe(name); |
897891f0 RC |
623 | printf("tmpfile: %s", name); |
624 | ||
625 | r = writev(fd, iov, 3); | |
626 | assert_se(r >= 0); | |
627 | ||
628 | r = read_full_file(name, &contents, &size); | |
629 | assert_se(r == 0); | |
630 | printf("contents: %s", contents); | |
631 | assert_se(streq(contents, "abc\n" ALPHANUMERICAL "\n")); | |
897891f0 RC |
632 | } |
633 | ||
4f7452a8 | 634 | TEST(tempfn) { |
897891f0 RC |
635 | char *ret = NULL, *p; |
636 | ||
637 | assert_se(tempfn_xxxxxx("/foo/bar/waldo", NULL, &ret) >= 0); | |
638 | assert_se(streq_ptr(ret, "/foo/bar/.#waldoXXXXXX")); | |
639 | free(ret); | |
640 | ||
641 | assert_se(tempfn_xxxxxx("/foo/bar/waldo", "[miau]", &ret) >= 0); | |
642 | assert_se(streq_ptr(ret, "/foo/bar/.#[miau]waldoXXXXXX")); | |
643 | free(ret); | |
644 | ||
645 | assert_se(tempfn_random("/foo/bar/waldo", NULL, &ret) >= 0); | |
646 | assert_se(p = startswith(ret, "/foo/bar/.#waldo")); | |
647 | assert_se(strlen(p) == 16); | |
648 | assert_se(in_charset(p, "0123456789abcdef")); | |
649 | free(ret); | |
650 | ||
651 | assert_se(tempfn_random("/foo/bar/waldo", "[wuff]", &ret) >= 0); | |
652 | assert_se(p = startswith(ret, "/foo/bar/.#[wuff]waldo")); | |
653 | assert_se(strlen(p) == 16); | |
654 | assert_se(in_charset(p, "0123456789abcdef")); | |
655 | free(ret); | |
656 | ||
657 | assert_se(tempfn_random_child("/foo/bar/waldo", NULL, &ret) >= 0); | |
658 | assert_se(p = startswith(ret, "/foo/bar/waldo/.#")); | |
659 | assert_se(strlen(p) == 16); | |
660 | assert_se(in_charset(p, "0123456789abcdef")); | |
661 | free(ret); | |
662 | ||
663 | assert_se(tempfn_random_child("/foo/bar/waldo", "[kikiriki]", &ret) >= 0); | |
664 | assert_se(p = startswith(ret, "/foo/bar/waldo/.#[kikiriki]")); | |
665 | assert_se(strlen(p) == 16); | |
666 | assert_se(in_charset(p, "0123456789abcdef")); | |
667 | free(ret); | |
668 | } | |
669 | ||
7f9d1aed | 670 | static const char chars[] = |
cdce33f9 | 671 | "Aąę„”\n루\377"; |
7f9d1aed | 672 | |
6028d766 | 673 | DISABLE_WARNING_TYPE_LIMITS; |
d3bdba38 | 674 | |
4f7452a8 | 675 | TEST(fgetc) { |
7f9d1aed ZJS |
676 | _cleanup_fclose_ FILE *f = NULL; |
677 | char c; | |
678 | ||
f3bd4b3d | 679 | assert_se(f = fmemopen_unlocked((void*) chars, sizeof(chars), "r")); |
7f9d1aed | 680 | |
72fd79b3 | 681 | for (size_t i = 0; i < sizeof(chars); i++) { |
7f9d1aed ZJS |
682 | assert_se(safe_fgetc(f, &c) == 1); |
683 | assert_se(c == chars[i]); | |
684 | ||
72fd79b3 LP |
685 | if (ungetc(c, f) == EOF) { |
686 | /* EOF is -1, and hence we can't push value 255 in this way – if char is signed */ | |
687 | assert_se(c == (char) EOF); | |
688 | assert_se(CHAR_MIN == -128); /* verify that char is signed on this platform */ | |
689 | } else { | |
690 | assert_se(safe_fgetc(f, &c) == 1); | |
691 | assert_se(c == chars[i]); | |
692 | } | |
7f9d1aed | 693 | |
cdce33f9 | 694 | /* But it works when we push it properly cast */ |
7f9d1aed ZJS |
695 | assert_se(ungetc((unsigned char) c, f) != EOF); |
696 | assert_se(safe_fgetc(f, &c) == 1); | |
697 | assert_se(c == chars[i]); | |
698 | } | |
699 | ||
700 | assert_se(safe_fgetc(f, &c) == 0); | |
701 | } | |
702 | ||
6028d766 | 703 | REENABLE_WARNING; |
d3bdba38 | 704 | |
2c9de139 ZJS |
705 | static const char buffer[] = |
706 | "Some test data\n" | |
7f9d1aed | 707 | "루Non-ascii chars: ąę„”\n" |
838894b0 LP |
708 | "terminators\r\n" |
709 | "and even more\n\r" | |
710 | "now the same with a NUL\n\0" | |
711 | "and more\r\0" | |
712 | "and even more\r\n\0" | |
713 | "and yet even more\n\r\0" | |
2c9de139 ZJS |
714 | "With newlines, and a NUL byte\0" |
715 | "\n" | |
716 | "an empty line\n" | |
717 | "an ignored line\n" | |
718 | "and a very long line that is supposed to be truncated, because it is so long\n"; | |
719 | ||
720 | static void test_read_line_one_file(FILE *f) { | |
4f9a66a3 LP |
721 | _cleanup_free_ char *line = NULL; |
722 | ||
f5fbe71d | 723 | assert_se(read_line(f, SIZE_MAX, &line) == 15 && streq(line, "Some test data")); |
4f9a66a3 LP |
724 | line = mfree(line); |
725 | ||
f5fbe71d | 726 | assert_se(read_line(f, SIZE_MAX, &line) > 0 && streq(line, "루Non-ascii chars: ąę„”")); |
838894b0 LP |
727 | line = mfree(line); |
728 | ||
f5fbe71d | 729 | assert_se(read_line(f, SIZE_MAX, &line) == 13 && streq(line, "terminators")); |
838894b0 LP |
730 | line = mfree(line); |
731 | ||
f5fbe71d | 732 | assert_se(read_line(f, SIZE_MAX, &line) == 15 && streq(line, "and even more")); |
838894b0 LP |
733 | line = mfree(line); |
734 | ||
f5fbe71d | 735 | assert_se(read_line(f, SIZE_MAX, &line) == 25 && streq(line, "now the same with a NUL")); |
838894b0 LP |
736 | line = mfree(line); |
737 | ||
f5fbe71d | 738 | assert_se(read_line(f, SIZE_MAX, &line) == 10 && streq(line, "and more")); |
838894b0 LP |
739 | line = mfree(line); |
740 | ||
f5fbe71d | 741 | assert_se(read_line(f, SIZE_MAX, &line) == 16 && streq(line, "and even more")); |
838894b0 LP |
742 | line = mfree(line); |
743 | ||
f5fbe71d | 744 | assert_se(read_line(f, SIZE_MAX, &line) == 20 && streq(line, "and yet even more")); |
838894b0 LP |
745 | line = mfree(line); |
746 | ||
4f9a66a3 LP |
747 | assert_se(read_line(f, 1024, &line) == 30 && streq(line, "With newlines, and a NUL byte")); |
748 | line = mfree(line); | |
749 | ||
750 | assert_se(read_line(f, 1024, &line) == 1 && streq(line, "")); | |
751 | line = mfree(line); | |
752 | ||
753 | assert_se(read_line(f, 1024, &line) == 14 && streq(line, "an empty line")); | |
754 | line = mfree(line); | |
755 | ||
f5fbe71d | 756 | assert_se(read_line(f, SIZE_MAX, NULL) == 16); |
4f9a66a3 LP |
757 | |
758 | assert_se(read_line(f, 16, &line) == -ENOBUFS); | |
759 | line = mfree(line); | |
760 | ||
761 | /* read_line() stopped when it hit the limit, that means when we continue reading we'll read at the first | |
5238e957 | 762 | * character after the previous limit. Let's make use of that to continue our test. */ |
838894b0 | 763 | assert_se(read_line(f, 1024, &line) == 62 && streq(line, "line that is supposed to be truncated, because it is so long")); |
4f9a66a3 LP |
764 | line = mfree(line); |
765 | ||
766 | assert_se(read_line(f, 1024, &line) == 0 && streq(line, "")); | |
767 | } | |
768 | ||
4f7452a8 | 769 | TEST(read_line1) { |
2c9de139 | 770 | _cleanup_fclose_ FILE *f = NULL; |
2c9de139 | 771 | |
f3bd4b3d | 772 | assert_se(f = fmemopen_unlocked((void*) buffer, sizeof(buffer), "r")); |
2c9de139 ZJS |
773 | test_read_line_one_file(f); |
774 | } | |
775 | ||
4f7452a8 | 776 | TEST(read_line2) { |
627d2bac | 777 | _cleanup_(unlink_tempfilep) char name[] = "/tmp/test-fileio.XXXXXX"; |
2c9de139 ZJS |
778 | int fd; |
779 | _cleanup_fclose_ FILE *f = NULL; | |
780 | ||
781 | fd = mkostemp_safe(name); | |
782 | assert_se(fd >= 0); | |
783 | assert_se((size_t) write(fd, buffer, sizeof(buffer)) == sizeof(buffer)); | |
784 | ||
785 | assert_se(lseek(fd, 0, SEEK_SET) == 0); | |
786 | assert_se(f = fdopen(fd, "r")); | |
787 | ||
788 | test_read_line_one_file(f); | |
789 | } | |
790 | ||
4f7452a8 | 791 | TEST(read_line3) { |
2c9de139 ZJS |
792 | _cleanup_fclose_ FILE *f = NULL; |
793 | _cleanup_free_ char *line = NULL; | |
794 | int r; | |
795 | ||
30b84c78 | 796 | f = fopen("/proc/uptime", "re"); |
2c9de139 ZJS |
797 | if (!f && IN_SET(errno, ENOENT, EPERM)) |
798 | return; | |
799 | assert_se(f); | |
800 | ||
801 | r = read_line(f, LINE_MAX, &line); | |
b4555637 ZJS |
802 | assert_se(r >= 0); |
803 | if (r == 0) | |
804 | assert_se(line && isempty(line)); | |
805 | else | |
806 | assert_se((size_t) r == strlen(line) + 1); | |
2c9de139 ZJS |
807 | assert_se(read_line(f, LINE_MAX, NULL) == 0); |
808 | } | |
809 | ||
4f7452a8 | 810 | TEST(read_line4) { |
6baac700 LP |
811 | static const struct { |
812 | size_t length; | |
813 | const char *string; | |
814 | } eof_endings[] = { | |
815 | /* Each of these will be followed by EOF and should generate the one same single string */ | |
816 | { 3, "foo" }, | |
817 | { 4, "foo\n" }, | |
818 | { 4, "foo\r" }, | |
819 | { 4, "foo\0" }, | |
820 | { 5, "foo\n\0" }, | |
821 | { 5, "foo\r\0" }, | |
822 | { 5, "foo\r\n" }, | |
823 | { 5, "foo\n\r" }, | |
824 | { 6, "foo\r\n\0" }, | |
825 | { 6, "foo\n\r\0" }, | |
826 | }; | |
827 | ||
6baac700 LP |
828 | int r; |
829 | ||
d12ccbc3 | 830 | for (size_t i = 0; i < ELEMENTSOF(eof_endings); i++) { |
6baac700 LP |
831 | _cleanup_fclose_ FILE *f = NULL; |
832 | _cleanup_free_ char *s = NULL; | |
833 | ||
673a1e6f | 834 | assert_se(f = fmemopen_unlocked((void*) eof_endings[i].string, eof_endings[i].length, "r")); |
6baac700 | 835 | |
f5fbe71d | 836 | r = read_line(f, SIZE_MAX, &s); |
6baac700 LP |
837 | assert_se((size_t) r == eof_endings[i].length); |
838 | assert_se(streq_ptr(s, "foo")); | |
839 | ||
f5fbe71d | 840 | assert_se(read_line(f, SIZE_MAX, NULL) == 0); /* Ensure we hit EOF */ |
6baac700 LP |
841 | } |
842 | } | |
843 | ||
4f7452a8 | 844 | TEST(read_nul_string) { |
3946d576 LP |
845 | static const char test[] = "string nr. 1\0" |
846 | "string nr. 2\n\0" | |
517b7760 | 847 | "\377empty string follows\0" |
3946d576 LP |
848 | "\0" |
849 | "final string\n is empty\0" | |
850 | "\0"; | |
851 | ||
852 | _cleanup_fclose_ FILE *f = NULL; | |
853 | _cleanup_free_ char *s = NULL; | |
854 | ||
673a1e6f | 855 | assert_se(f = fmemopen_unlocked((void*) test, sizeof(test)-1, "r")); |
3946d576 LP |
856 | |
857 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 13 && streq_ptr(s, "string nr. 1")); | |
858 | s = mfree(s); | |
859 | ||
860 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 14 && streq_ptr(s, "string nr. 2\n")); | |
861 | s = mfree(s); | |
862 | ||
517b7760 | 863 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 22 && streq_ptr(s, "\377empty string follows")); |
3946d576 LP |
864 | s = mfree(s); |
865 | ||
866 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 1 && streq_ptr(s, "")); | |
867 | s = mfree(s); | |
868 | ||
869 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 23 && streq_ptr(s, "final string\n is empty")); | |
870 | s = mfree(s); | |
871 | ||
872 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 1 && streq_ptr(s, "")); | |
873 | s = mfree(s); | |
874 | ||
875 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 0 && streq_ptr(s, "")); | |
876 | } | |
877 | ||
4f7452a8 | 878 | TEST(read_full_file_socket) { |
b93d3f6b LP |
879 | _cleanup_(rm_rf_physical_and_freep) char *z = NULL; |
880 | _cleanup_close_ int listener = -1; | |
d3dcf4e3 | 881 | _cleanup_free_ char *data = NULL, *clientname = NULL; |
b93d3f6b | 882 | union sockaddr_union sa; |
28ae8da9 | 883 | const char *j, *jj; |
b93d3f6b LP |
884 | size_t size; |
885 | pid_t pid; | |
886 | int r; | |
887 | ||
b93d3f6b LP |
888 | listener = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); |
889 | assert_se(listener >= 0); | |
890 | ||
891 | assert_se(mkdtemp_malloc(NULL, &z) >= 0); | |
892 | j = strjoina(z, "/socket"); | |
893 | ||
894 | assert_se(sockaddr_un_set_path(&sa.un, j) >= 0); | |
895 | ||
896 | assert_se(bind(listener, &sa.sa, SOCKADDR_UN_LEN(sa.un)) >= 0); | |
897 | assert_se(listen(listener, 1) >= 0); | |
898 | ||
28ae8da9 LP |
899 | /* Make sure the socket doesn't fit into a struct sockaddr_un, but we can still access it */ |
900 | jj = strjoina(z, "/a_very_long_patha_very_long_patha_very_long_patha_very_long_patha_very_long_patha_very_long_patha_very_long_patha_very_long_path"); | |
901 | assert_se(strlen(jj) > sizeof_field(struct sockaddr_un, sun_path)); | |
902 | assert_se(rename(j, jj) >= 0); | |
903 | ||
d3dcf4e3 LP |
904 | /* Bind the *client* socket to some randomized name, to verify that this works correctly. */ |
905 | assert_se(asprintf(&clientname, "@%" PRIx64 "/test-bindname", random_u64()) >= 0); | |
906 | ||
b93d3f6b LP |
907 | r = safe_fork("(server)", FORK_DEATHSIG|FORK_LOG, &pid); |
908 | assert_se(r >= 0); | |
909 | if (r == 0) { | |
d3dcf4e3 LP |
910 | union sockaddr_union peer = {}; |
911 | socklen_t peerlen = sizeof(peer); | |
254d1313 | 912 | _cleanup_close_ int rfd = -EBADF; |
b93d3f6b LP |
913 | /* child */ |
914 | ||
915 | rfd = accept4(listener, NULL, 0, SOCK_CLOEXEC); | |
916 | assert_se(rfd >= 0); | |
917 | ||
d3dcf4e3 LP |
918 | assert_se(getpeername(rfd, &peer.sa, &peerlen) >= 0); |
919 | ||
920 | assert_se(peer.un.sun_family == AF_UNIX); | |
921 | assert_se(peerlen > offsetof(struct sockaddr_un, sun_path)); | |
922 | assert_se(peer.un.sun_path[0] == 0); | |
923 | assert_se(streq(peer.un.sun_path + 1, clientname + 1)); | |
924 | ||
b93d3f6b LP |
925 | #define TEST_STR "This is a test\nreally." |
926 | ||
927 | assert_se(write(rfd, TEST_STR, strlen(TEST_STR)) == strlen(TEST_STR)); | |
928 | _exit(EXIT_SUCCESS); | |
929 | } | |
930 | ||
28ae8da9 LP |
931 | assert_se(read_full_file_full(AT_FDCWD, jj, UINT64_MAX, SIZE_MAX, 0, NULL, &data, &size) == -ENXIO); |
932 | assert_se(read_full_file_full(AT_FDCWD, jj, UINT64_MAX, SIZE_MAX, READ_FULL_FILE_CONNECT_SOCKET, clientname, &data, &size) >= 0); | |
b93d3f6b LP |
933 | assert_se(size == strlen(TEST_STR)); |
934 | assert_se(streq(data, TEST_STR)); | |
935 | ||
936 | assert_se(wait_for_terminate_and_check("(server)", pid, WAIT_LOG) >= 0); | |
937 | #undef TEST_STR | |
938 | } | |
939 | ||
4f7452a8 | 940 | TEST(read_full_file_offset_size) { |
986311c2 LP |
941 | _cleanup_fclose_ FILE *f = NULL; |
942 | _cleanup_(unlink_and_freep) char *fn = NULL; | |
943 | _cleanup_free_ char *rbuf = NULL; | |
944 | size_t rbuf_size; | |
945 | uint8_t buf[4711]; | |
946 | ||
947 | random_bytes(buf, sizeof(buf)); | |
948 | ||
949 | assert_se(tempfn_random_child(NULL, NULL, &fn) >= 0); | |
950 | assert_se(f = fopen(fn, "we")); | |
951 | assert_se(fwrite(buf, 1, sizeof(buf), f) == sizeof(buf)); | |
952 | assert_se(fflush_and_check(f) >= 0); | |
953 | ||
954 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, SIZE_MAX, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
955 | assert_se(rbuf_size == sizeof(buf)); | |
956 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
957 | rbuf = mfree(rbuf); | |
958 | ||
959 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, 128, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
960 | assert_se(rbuf_size == 128); | |
961 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
962 | rbuf = mfree(rbuf); | |
963 | ||
7b0da71d LP |
964 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, 128, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); |
965 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, sizeof(buf)-1, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); | |
966 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, sizeof(buf), READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) >= 0); | |
967 | assert_se(rbuf_size == sizeof(buf)); | |
968 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
969 | rbuf = mfree(rbuf); | |
970 | ||
971 | assert_se(read_full_file_full(AT_FDCWD, fn, 47, 128, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); | |
972 | assert_se(read_full_file_full(AT_FDCWD, fn, 47, sizeof(buf)-47-1, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); | |
973 | assert_se(read_full_file_full(AT_FDCWD, fn, 47, sizeof(buf)-47, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) >= 0); | |
974 | assert_se(rbuf_size == sizeof(buf)-47); | |
975 | assert_se(memcmp(buf+47, rbuf, rbuf_size) == 0); | |
976 | rbuf = mfree(rbuf); | |
977 | ||
978 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, sizeof(buf)+1, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) >= 0); | |
979 | assert_se(rbuf_size == sizeof(buf)); | |
980 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
981 | rbuf = mfree(rbuf); | |
982 | ||
986311c2 LP |
983 | assert_se(read_full_file_full(AT_FDCWD, fn, 1234, SIZE_MAX, 0, NULL, &rbuf, &rbuf_size) >= 0); |
984 | assert_se(rbuf_size == sizeof(buf) - 1234); | |
985 | assert_se(memcmp(buf + 1234, rbuf, rbuf_size) == 0); | |
986 | rbuf = mfree(rbuf); | |
987 | ||
988 | assert_se(read_full_file_full(AT_FDCWD, fn, 2345, 777, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
989 | assert_se(rbuf_size == 777); | |
990 | assert_se(memcmp(buf + 2345, rbuf, rbuf_size) == 0); | |
991 | rbuf = mfree(rbuf); | |
992 | ||
993 | assert_se(read_full_file_full(AT_FDCWD, fn, 4700, 20, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
994 | assert_se(rbuf_size == 11); | |
995 | assert_se(memcmp(buf + 4700, rbuf, rbuf_size) == 0); | |
996 | rbuf = mfree(rbuf); | |
997 | ||
998 | assert_se(read_full_file_full(AT_FDCWD, fn, 10000, 99, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
999 | assert_se(rbuf_size == 0); | |
1000 | rbuf = mfree(rbuf); | |
1001 | } | |
1002 | ||
4f7452a8 | 1003 | static void test_read_virtual_file_one(size_t max_size) { |
bca895c4 ZJS |
1004 | int r; |
1005 | ||
d12ccbc3 ZJS |
1006 | log_info("/* %s (max_size=%zu) */", __func__, max_size); |
1007 | ||
bca895c4 ZJS |
1008 | FOREACH_STRING(filename, |
1009 | "/proc/1/cmdline", | |
1010 | "/etc/nsswitch.conf", | |
f3b75122 LP |
1011 | "/sys/kernel/uevent_seqnum", |
1012 | "/proc/kcore", | |
1013 | "/proc/kallsyms", | |
1014 | "/proc/self/exe", | |
1015 | "/proc/self/pagemap") { | |
bca895c4 ZJS |
1016 | |
1017 | _cleanup_free_ char *buf = NULL; | |
1018 | size_t size = 0; | |
1019 | ||
ad0e687c | 1020 | r = read_virtual_file(filename, max_size, &buf, &size); |
8461d6da LP |
1021 | if (r < 0) { |
1022 | log_info_errno(r, "read_virtual_file(\"%s\", %zu): %m", filename, max_size); | |
f3b75122 LP |
1023 | assert_se(ERRNO_IS_PRIVILEGE(r) || /* /proc/kcore is not accessible to unpriv */ |
1024 | IN_SET(r, | |
1025 | -ENOENT, /* Some of the files might be absent */ | |
1026 | -EINVAL, /* too small reads from /proc/self/pagemap trigger EINVAL */ | |
1027 | -EFBIG)); /* /proc/kcore and /proc/self/pagemap should be too large */ | |
8461d6da LP |
1028 | } else |
1029 | log_info("read_virtual_file(\"%s\", %zu): %s (%zu bytes)", filename, max_size, r ? "non-truncated" : "truncated", size); | |
bca895c4 ZJS |
1030 | } |
1031 | } | |
1032 | ||
4f7452a8 JJ |
1033 | TEST(test_read_virtual_file) { |
1034 | test_read_virtual_file_one(0); | |
1035 | test_read_virtual_file_one(1); | |
1036 | test_read_virtual_file_one(2); | |
1037 | test_read_virtual_file_one(20); | |
1038 | test_read_virtual_file_one(4096); | |
1039 | test_read_virtual_file_one(4097); | |
1040 | test_read_virtual_file_one(SIZE_MAX); | |
f73141d7 | 1041 | } |
4f7452a8 JJ |
1042 | |
1043 | DEFINE_TEST_MAIN(LOG_DEBUG); |