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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" |
3ffd4af2 | 27 | #include "util.h" |
f73141d7 | 28 | |
4f7452a8 | 29 | TEST(parse_env_file) { |
627d2bac ZJS |
30 | _cleanup_(unlink_tempfilep) char |
31 | t[] = "/tmp/test-fileio-in-XXXXXX", | |
095b30cb | 32 | p[] = "/tmp/test-fileio-out-XXXXXX"; |
f73141d7 | 33 | FILE *f; |
ebc05a09 | 34 | _cleanup_free_ char *one = NULL, *two = NULL, *three = NULL, *four = NULL, *five = NULL, |
e4a8db1f LT |
35 | *six = NULL, *seven = NULL, *eight = NULL, *nine = NULL, *ten = NULL, |
36 | *eleven = NULL, *twelve = NULL, *thirteen = NULL; | |
768100ef | 37 | _cleanup_strv_free_ char **a = NULL, **b = NULL; |
768100ef | 38 | unsigned k; |
d8351049 | 39 | int r; |
f73141d7 | 40 | |
d8351049 | 41 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
f73141d7 LP |
42 | fputs("one=BAR \n" |
43 | "# comment\n" | |
44 | " # comment \n" | |
98f59e59 | 45 | " ; comment \n" |
f73141d7 LP |
46 | " two = bar \n" |
47 | "invalid line\n" | |
98f59e59 | 48 | "invalid line #comment\n" |
f73141d7 LP |
49 | "three = \"333\n" |
50 | "xxxx\"\n" | |
51 | "four = \'44\\\"44\'\n" | |
e4a8db1f | 52 | "five = \"55\\\"55\" \"FIVE\" cinco \n" |
f73141d7 LP |
53 | "six = seis sechs\\\n" |
54 | " sis\n" | |
98f59e59 HH |
55 | "seven=\"sevenval\" #nocomment\n" |
56 | "eight=eightval #nocomment\n" | |
ebc05a09 | 57 | "export nine=nineval\n" |
99003e01 ZJS |
58 | "ten=ignored\n" |
59 | "ten=ignored\n" | |
e4a8db1f LT |
60 | "ten=\n" |
61 | "eleven=\\value\n" | |
62 | "twelve=\"\\value\"\n" | |
63 | "thirteen='\\value'", f); | |
f73141d7 LP |
64 | |
65 | fflush(f); | |
66 | fclose(f); | |
67 | ||
aa8fbc74 | 68 | r = load_env_file(NULL, t, &a); |
ebc05a09 HH |
69 | assert_se(r >= 0); |
70 | ||
71 | STRV_FOREACH(i, a) | |
72 | log_info("Got: <%s>", *i); | |
73 | ||
5fba7bbf TA |
74 | assert_se(streq_ptr(a[0], "one=BAR")); |
75 | assert_se(streq_ptr(a[1], "two=bar")); | |
76 | assert_se(streq_ptr(a[2], "three=333\nxxxx")); | |
e4a8db1f LT |
77 | assert_se(streq_ptr(a[3], "four=44\\\"44")); |
78 | assert_se(streq_ptr(a[4], "five=55\"55FIVEcinco")); | |
5fba7bbf TA |
79 | assert_se(streq_ptr(a[5], "six=seis sechs sis")); |
80 | assert_se(streq_ptr(a[6], "seven=sevenval#nocomment")); | |
81 | assert_se(streq_ptr(a[7], "eight=eightval #nocomment")); | |
82 | assert_se(streq_ptr(a[8], "export nine=nineval")); | |
83 | assert_se(streq_ptr(a[9], "ten=")); | |
e4a8db1f LT |
84 | assert_se(streq_ptr(a[10], "eleven=value")); |
85 | assert_se(streq_ptr(a[11], "twelve=\\value")); | |
86 | assert_se(streq_ptr(a[12], "thirteen=\\value")); | |
87 | assert_se(a[13] == NULL); | |
ebc05a09 | 88 | |
039f0e70 | 89 | strv_env_clean(a); |
ebc05a09 | 90 | |
ebc05a09 HH |
91 | k = 0; |
92 | STRV_FOREACH(i, b) { | |
93 | log_info("Got2: <%s>", *i); | |
94 | assert_se(streq(*i, a[k++])); | |
95 | } | |
96 | ||
f73141d7 | 97 | r = parse_env_file( |
aa8fbc74 | 98 | NULL, t, |
f73141d7 LP |
99 | "one", &one, |
100 | "two", &two, | |
101 | "three", &three, | |
102 | "four", &four, | |
103 | "five", &five, | |
104 | "six", &six, | |
105 | "seven", &seven, | |
db537209 | 106 | "eight", &eight, |
ebc05a09 | 107 | "export nine", &nine, |
e4a8db1f LT |
108 | "ten", &ten, |
109 | "eleven", &eleven, | |
110 | "twelve", &twelve, | |
111 | "thirteen", &thirteen); | |
99aad9a2 | 112 | assert_se(r == 0); |
f73141d7 LP |
113 | |
114 | log_info("one=[%s]", strna(one)); | |
115 | log_info("two=[%s]", strna(two)); | |
116 | log_info("three=[%s]", strna(three)); | |
117 | log_info("four=[%s]", strna(four)); | |
118 | log_info("five=[%s]", strna(five)); | |
119 | log_info("six=[%s]", strna(six)); | |
120 | log_info("seven=[%s]", strna(seven)); | |
db537209 | 121 | log_info("eight=[%s]", strna(eight)); |
ebc05a09 HH |
122 | log_info("export nine=[%s]", strna(nine)); |
123 | log_info("ten=[%s]", strna(nine)); | |
e4a8db1f LT |
124 | log_info("eleven=[%s]", strna(eleven)); |
125 | log_info("twelve=[%s]", strna(twelve)); | |
126 | log_info("thirteen=[%s]", strna(thirteen)); | |
f73141d7 LP |
127 | |
128 | assert_se(streq(one, "BAR")); | |
129 | assert_se(streq(two, "bar")); | |
130 | assert_se(streq(three, "333\nxxxx")); | |
e4a8db1f LT |
131 | assert_se(streq(four, "44\\\"44")); |
132 | assert_se(streq(five, "55\"55FIVEcinco")); | |
f73141d7 | 133 | assert_se(streq(six, "seis sechs sis")); |
98f59e59 HH |
134 | assert_se(streq(seven, "sevenval#nocomment")); |
135 | assert_se(streq(eight, "eightval #nocomment")); | |
ebc05a09 HH |
136 | assert_se(streq(nine, "nineval")); |
137 | assert_se(ten == NULL); | |
e4a8db1f LT |
138 | assert_se(streq(eleven, "value")); |
139 | assert_se(streq(twelve, "\\value")); | |
140 | assert_se(streq(thirteen, "\\value")); | |
f73141d7 | 141 | |
d8351049 ZJS |
142 | { |
143 | /* prepare a temporary file to write the environment to */ | |
144 | _cleanup_close_ int fd = mkostemp_safe(p); | |
145 | assert_se(fd >= 0); | |
146 | } | |
147 | ||
095b30cb | 148 | r = write_env_file(p, a); |
98f59e59 HH |
149 | assert_se(r >= 0); |
150 | ||
aa8fbc74 | 151 | r = load_env_file(NULL, p, &b); |
98f59e59 | 152 | assert_se(r >= 0); |
f73141d7 LP |
153 | } |
154 | ||
df8b14b5 LP |
155 | static void test_one_shell_var(const char *file, const char *variable, const char *value) { |
156 | _cleanup_free_ char *cmd = NULL, *from_shell = NULL; | |
649bde89 | 157 | _cleanup_pclose_ FILE *f = NULL; |
df8b14b5 LP |
158 | size_t sz; |
159 | ||
160 | assert_se(cmd = strjoin(". ", file, " && /bin/echo -n \"$", variable, "\"")); | |
161 | assert_se(f = popen(cmd, "re")); | |
162 | assert_se(read_full_stream(f, &from_shell, &sz) >= 0); | |
163 | assert_se(sz == strlen(value)); | |
164 | assert_se(streq(from_shell, value)); | |
165 | } | |
166 | ||
4f7452a8 | 167 | TEST(parse_multiline_env_file) { |
627d2bac ZJS |
168 | _cleanup_(unlink_tempfilep) char |
169 | t[] = "/tmp/test-fileio-in-XXXXXX", | |
ac4c8d6d | 170 | p[] = "/tmp/test-fileio-out-XXXXXX"; |
ac4c8d6d ZJS |
171 | FILE *f; |
172 | _cleanup_strv_free_ char **a = NULL, **b = NULL; | |
d8351049 | 173 | int r; |
ac4c8d6d | 174 | |
d8351049 | 175 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
ac4c8d6d | 176 | fputs("one=BAR\\\n" |
6fe31963 LP |
177 | "\\ \\ \\ \\ VAR\\\n" |
178 | "\\\tGAR\n" | |
ac4c8d6d ZJS |
179 | "#comment\n" |
180 | "two=\"bar\\\n" | |
181 | " var\\\n" | |
182 | "\tgar\"\n" | |
183 | "#comment\n" | |
184 | "tri=\"bar \\\n" | |
185 | " var \\\n" | |
186 | "\tgar \"\n", f); | |
187 | ||
6fe31963 | 188 | assert_se(fflush_and_check(f) >= 0); |
ac4c8d6d ZJS |
189 | fclose(f); |
190 | ||
df8b14b5 LP |
191 | test_one_shell_var(t, "one", "BAR VAR\tGAR"); |
192 | test_one_shell_var(t, "two", "bar var\tgar"); | |
193 | test_one_shell_var(t, "tri", "bar var \tgar "); | |
194 | ||
aa8fbc74 | 195 | r = load_env_file(NULL, t, &a); |
ac4c8d6d ZJS |
196 | assert_se(r >= 0); |
197 | ||
198 | STRV_FOREACH(i, a) | |
199 | log_info("Got: <%s>", *i); | |
200 | ||
5fba7bbf TA |
201 | assert_se(streq_ptr(a[0], "one=BAR VAR\tGAR")); |
202 | assert_se(streq_ptr(a[1], "two=bar var\tgar")); | |
203 | assert_se(streq_ptr(a[2], "tri=bar var \tgar ")); | |
ac4c8d6d ZJS |
204 | assert_se(a[3] == NULL); |
205 | ||
d8351049 ZJS |
206 | { |
207 | _cleanup_close_ int fd = mkostemp_safe(p); | |
208 | assert_se(fd >= 0); | |
209 | } | |
210 | ||
ac4c8d6d ZJS |
211 | r = write_env_file(p, a); |
212 | assert_se(r >= 0); | |
213 | ||
aa8fbc74 | 214 | r = load_env_file(NULL, p, &b); |
ac4c8d6d | 215 | assert_se(r >= 0); |
ac4c8d6d ZJS |
216 | } |
217 | ||
4f7452a8 | 218 | TEST(merge_env_file) { |
627d2bac | 219 | _cleanup_(unlink_tempfilep) char t[] = "/tmp/test-fileio-XXXXXX"; |
9707d552 | 220 | _cleanup_fclose_ FILE *f = NULL; |
37f3ffca | 221 | _cleanup_strv_free_ char **a = NULL; |
d8351049 | 222 | int r; |
37f3ffca | 223 | |
d8351049 | 224 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
37f3ffca RS |
225 | log_info("/* %s (%s) */", __func__, t); |
226 | ||
37f3ffca RS |
227 | r = write_string_stream(f, |
228 | "one=1 \n" | |
229 | "twelve=${one}2\n" | |
230 | "twentyone=2${one}\n" | |
231 | "one=2\n" | |
ccad1fd0 ZJS |
232 | "twentytwo=2${one}\n" |
233 | "xxx_minus_three=$xxx - 3\n" | |
234 | "xxx=0x$one$one$one\n" | |
b82f58bf RS |
235 | "yyy=${one:-fallback}\n" |
236 | "zzz=${one:+replacement}\n" | |
237 | "zzzz=${foobar:-${nothing}}\n" | |
238 | "zzzzz=${nothing:+${nothing}}\n" | |
b1837133 | 239 | , WRITE_STRING_FILE_AVOID_NEWLINE); |
f21b863e | 240 | assert_se(r >= 0); |
37f3ffca RS |
241 | |
242 | r = merge_env_file(&a, NULL, t); | |
243 | assert_se(r >= 0); | |
244 | strv_sort(a); | |
245 | ||
246 | STRV_FOREACH(i, a) | |
247 | log_info("Got: <%s>", *i); | |
248 | ||
249 | assert_se(streq(a[0], "one=2")); | |
250 | assert_se(streq(a[1], "twelve=12")); | |
251 | assert_se(streq(a[2], "twentyone=21")); | |
252 | assert_se(streq(a[3], "twentytwo=22")); | |
ccad1fd0 ZJS |
253 | assert_se(streq(a[4], "xxx=0x222")); |
254 | assert_se(streq(a[5], "xxx_minus_three= - 3")); | |
b82f58bf RS |
255 | assert_se(streq(a[6], "yyy=2")); |
256 | assert_se(streq(a[7], "zzz=replacement")); | |
257 | assert_se(streq(a[8], "zzzz=")); | |
258 | assert_se(streq(a[9], "zzzzz=")); | |
259 | assert_se(a[10] == NULL); | |
37f3ffca RS |
260 | |
261 | r = merge_env_file(&a, NULL, t); | |
262 | assert_se(r >= 0); | |
263 | strv_sort(a); | |
264 | ||
265 | STRV_FOREACH(i, a) | |
266 | log_info("Got2: <%s>", *i); | |
267 | ||
268 | assert_se(streq(a[0], "one=2")); | |
269 | assert_se(streq(a[1], "twelve=12")); | |
270 | assert_se(streq(a[2], "twentyone=21")); | |
271 | assert_se(streq(a[3], "twentytwo=22")); | |
ccad1fd0 ZJS |
272 | assert_se(streq(a[4], "xxx=0x222")); |
273 | assert_se(streq(a[5], "xxx_minus_three=0x222 - 3")); | |
b82f58bf RS |
274 | assert_se(streq(a[6], "yyy=2")); |
275 | assert_se(streq(a[7], "zzz=replacement")); | |
276 | assert_se(streq(a[8], "zzzz=")); | |
277 | assert_se(streq(a[9], "zzzzz=")); | |
278 | assert_se(a[10] == NULL); | |
37f3ffca | 279 | } |
ac4c8d6d | 280 | |
4f7452a8 | 281 | TEST(merge_env_file_invalid) { |
627d2bac | 282 | _cleanup_(unlink_tempfilep) char t[] = "/tmp/test-fileio-XXXXXX"; |
9707d552 | 283 | _cleanup_fclose_ FILE *f = NULL; |
184d1904 | 284 | _cleanup_strv_free_ char **a = NULL; |
d8351049 | 285 | int r; |
184d1904 | 286 | |
d8351049 | 287 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
184d1904 ZJS |
288 | log_info("/* %s (%s) */", __func__, t); |
289 | ||
184d1904 ZJS |
290 | r = write_string_stream(f, |
291 | "unset one \n" | |
292 | "unset one= \n" | |
293 | "unset one=1 \n" | |
294 | "one \n" | |
295 | "one = \n" | |
296 | "one two =\n" | |
297 | "\x20two=\n" | |
298 | "#comment=comment\n" | |
299 | ";comment2=comment2\n" | |
300 | "#\n" | |
301 | "\n\n" /* empty line */ | |
b1837133 | 302 | , WRITE_STRING_FILE_AVOID_NEWLINE); |
f21b863e | 303 | assert_se(r >= 0); |
184d1904 ZJS |
304 | |
305 | r = merge_env_file(&a, NULL, t); | |
306 | assert_se(r >= 0); | |
307 | ||
308 | STRV_FOREACH(i, a) | |
309 | log_info("Got: <%s>", *i); | |
310 | ||
311 | assert_se(strv_isempty(a)); | |
312 | } | |
313 | ||
4f7452a8 | 314 | TEST(executable_is_script) { |
627d2bac | 315 | _cleanup_(unlink_tempfilep) char t[] = "/tmp/test-fileio-XXXXXX"; |
627d2bac | 316 | _cleanup_fclose_ FILE *f = NULL; |
68fee104 | 317 | char *command; |
d8351049 | 318 | int r; |
68fee104 | 319 | |
d8351049 | 320 | assert_se(fmkostemp_safe(t, "w", &f) == 0); |
68fee104 ZJS |
321 | fputs("#! /bin/script -a -b \ngoo goo", f); |
322 | fflush(f); | |
323 | ||
324 | r = executable_is_script(t, &command); | |
325 | assert_se(r > 0); | |
326 | assert_se(streq(command, "/bin/script")); | |
327 | free(command); | |
328 | ||
329 | r = executable_is_script("/bin/sh", &command); | |
330 | assert_se(r == 0); | |
331 | ||
332 | r = executable_is_script("/usr/bin/yum", &command); | |
333 | assert_se(r > 0 || r == -ENOENT); | |
334 | if (r > 0) { | |
335 | assert_se(startswith(command, "/")); | |
336 | free(command); | |
337 | } | |
68fee104 ZJS |
338 | } |
339 | ||
4f7452a8 | 340 | TEST(status_field) { |
1e5413f7 ZJS |
341 | _cleanup_free_ char *t = NULL, *p = NULL, *s = NULL, *z = NULL; |
342 | unsigned long long total = 0, buffers = 0; | |
442e0083 | 343 | int r; |
69ab8088 | 344 | |
c4cd1d4d | 345 | assert_se(get_proc_field("/proc/self/status", "Threads", WHITESPACE, &t) == 0); |
69ab8088 ZJS |
346 | puts(t); |
347 | assert_se(streq(t, "1")); | |
348 | ||
c4cd1d4d | 349 | r = get_proc_field("/proc/meminfo", "MemTotal", WHITESPACE, &p); |
1e5413f7 | 350 | if (r != -ENOENT) { |
bdf7026e | 351 | assert_se(r == 0); |
1e5413f7 ZJS |
352 | puts(p); |
353 | assert_se(safe_atollu(p, &total) == 0); | |
354 | } | |
69ab8088 | 355 | |
c4cd1d4d | 356 | r = get_proc_field("/proc/meminfo", "Buffers", WHITESPACE, &s); |
1e5413f7 | 357 | if (r != -ENOENT) { |
bdf7026e | 358 | assert_se(r == 0); |
1e5413f7 ZJS |
359 | puts(s); |
360 | assert_se(safe_atollu(s, &buffers) == 0); | |
361 | } | |
69ab8088 | 362 | |
2b01a801 | 363 | if (p) |
bdf7026e | 364 | assert_se(buffers < total); |
1e5413f7 ZJS |
365 | |
366 | /* Seccomp should be a good test for field full of zeros. */ | |
c4cd1d4d | 367 | r = get_proc_field("/proc/meminfo", "Seccomp", WHITESPACE, &z); |
1e5413f7 | 368 | if (r != -ENOENT) { |
bdf7026e | 369 | assert_se(r == 0); |
1e5413f7 ZJS |
370 | puts(z); |
371 | assert_se(safe_atollu(z, &buffers) == 0); | |
372 | } | |
373 | } | |
374 | ||
4f7452a8 | 375 | TEST(capeff) { |
d12ccbc3 | 376 | for (int pid = 0; pid < 2; pid++) { |
1e5413f7 | 377 | _cleanup_free_ char *capeff = NULL; |
d12ccbc3 | 378 | int r, p; |
1e5413f7 ZJS |
379 | |
380 | r = get_process_capeff(0, &capeff); | |
381 | log_info("capeff: '%s' (r=%d)", capeff, r); | |
382 | ||
4c701096 | 383 | if (IN_SET(r, -ENOENT, -EPERM)) |
1e5413f7 ZJS |
384 | return; |
385 | ||
bdf7026e TA |
386 | assert_se(r == 0); |
387 | assert_se(*capeff); | |
1a7906ae | 388 | p = capeff[strspn(capeff, HEXDIGITS)]; |
bdf7026e | 389 | assert_se(!p || isspace(p)); |
1e5413f7 | 390 | } |
69ab8088 ZJS |
391 | } |
392 | ||
4f7452a8 | 393 | TEST(write_string_stream) { |
627d2bac ZJS |
394 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-write_string_stream-XXXXXX"; |
395 | _cleanup_fclose_ FILE *f = NULL; | |
0709b743 RC |
396 | int fd; |
397 | char buf[64]; | |
398 | ||
646853bd | 399 | fd = mkostemp_safe(fn); |
0709b743 RC |
400 | assert_se(fd >= 0); |
401 | ||
402 | f = fdopen(fd, "r"); | |
403 | assert_se(f); | |
b1837133 | 404 | assert_se(write_string_stream(f, "boohoo", 0) < 0); |
36297390 | 405 | f = safe_fclose(f); |
0709b743 | 406 | |
36297390 | 407 | f = fopen(fn, "r+"); |
0709b743 RC |
408 | assert_se(f); |
409 | ||
b1837133 | 410 | assert_se(write_string_stream(f, "boohoo", 0) == 0); |
0709b743 RC |
411 | rewind(f); |
412 | ||
413 | assert_se(fgets(buf, sizeof(buf), f)); | |
414 | assert_se(streq(buf, "boohoo\n")); | |
36297390 | 415 | f = safe_fclose(f); |
0709b743 | 416 | |
36297390 | 417 | f = fopen(fn, "w+"); |
40beecdb DM |
418 | assert_se(f); |
419 | ||
b1837133 | 420 | assert_se(write_string_stream(f, "boohoo", WRITE_STRING_FILE_AVOID_NEWLINE) == 0); |
40beecdb DM |
421 | rewind(f); |
422 | ||
423 | assert_se(fgets(buf, sizeof(buf), f)); | |
424 | printf(">%s<", buf); | |
425 | assert_se(streq(buf, "boohoo")); | |
0709b743 RC |
426 | } |
427 | ||
4f7452a8 | 428 | TEST(write_string_file) { |
627d2bac | 429 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-write_string_file-XXXXXX"; |
76082570 RC |
430 | char buf[64] = {}; |
431 | _cleanup_close_ int fd; | |
0709b743 | 432 | |
646853bd | 433 | fd = mkostemp_safe(fn); |
0709b743 RC |
434 | assert_se(fd >= 0); |
435 | ||
4c1fc3e4 | 436 | assert_se(write_string_file(fn, "boohoo", WRITE_STRING_FILE_CREATE) == 0); |
0709b743 | 437 | |
cca0efb0 | 438 | assert_se(read(fd, buf, sizeof(buf)) == 7); |
0709b743 | 439 | assert_se(streq(buf, "boohoo\n")); |
0709b743 RC |
440 | } |
441 | ||
4f7452a8 | 442 | TEST(write_string_file_no_create) { |
627d2bac | 443 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-write_string_file_no_create-XXXXXX"; |
e07995a3 | 444 | _cleanup_close_ int fd; |
2aa07538 | 445 | char buf[64] = {}; |
e07995a3 | 446 | |
646853bd | 447 | fd = mkostemp_safe(fn); |
e07995a3 RC |
448 | assert_se(fd >= 0); |
449 | ||
4c1fc3e4 DM |
450 | assert_se(write_string_file("/a/file/which/does/not/exists/i/guess", "boohoo", 0) < 0); |
451 | assert_se(write_string_file(fn, "boohoo", 0) == 0); | |
e07995a3 | 452 | |
2aa07538 | 453 | assert_se(read(fd, buf, sizeof buf) == (ssize_t) strlen("boohoo\n")); |
e07995a3 | 454 | assert_se(streq(buf, "boohoo\n")); |
e07995a3 RC |
455 | } |
456 | ||
4f7452a8 | 457 | TEST(write_string_file_verify) { |
eb3da901 LP |
458 | _cleanup_free_ char *buf = NULL, *buf2 = NULL; |
459 | int r; | |
460 | ||
3c14dc61 TM |
461 | r = read_one_line_file("/proc/version", &buf); |
462 | if (ERRNO_IS_PRIVILEGE(r)) | |
463 | return; | |
464 | assert_se(r >= 0); | |
dcd6361e | 465 | assert_se(buf2 = strjoin(buf, "\n")); |
eb3da901 | 466 | |
30b84c78 | 467 | r = write_string_file("/proc/version", buf, 0); |
4c701096 | 468 | assert_se(IN_SET(r, -EACCES, -EIO)); |
30b84c78 | 469 | r = write_string_file("/proc/version", buf2, 0); |
4c701096 | 470 | assert_se(IN_SET(r, -EACCES, -EIO)); |
eb3da901 | 471 | |
30b84c78 ZJS |
472 | assert_se(write_string_file("/proc/version", buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE) == 0); |
473 | assert_se(write_string_file("/proc/version", buf2, WRITE_STRING_FILE_VERIFY_ON_FAILURE) == 0); | |
eb3da901 | 474 | |
30b84c78 | 475 | r = write_string_file("/proc/version", buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE|WRITE_STRING_FILE_AVOID_NEWLINE); |
4c701096 | 476 | assert_se(IN_SET(r, -EACCES, -EIO)); |
30b84c78 | 477 | assert_se(write_string_file("/proc/version", buf2, WRITE_STRING_FILE_VERIFY_ON_FAILURE|WRITE_STRING_FILE_AVOID_NEWLINE) == 0); |
eb3da901 LP |
478 | } |
479 | ||
4f7452a8 | 480 | TEST(load_env_file_pairs) { |
627d2bac ZJS |
481 | _cleanup_(unlink_tempfilep) char fn[] = "/tmp/test-load_env_file_pairs-XXXXXX"; |
482 | int fd, r; | |
e07995a3 RC |
483 | _cleanup_fclose_ FILE *f = NULL; |
484 | _cleanup_strv_free_ char **l = NULL; | |
e07995a3 | 485 | |
646853bd | 486 | fd = mkostemp_safe(fn); |
e07995a3 RC |
487 | assert_se(fd >= 0); |
488 | ||
489 | r = write_string_file(fn, | |
490 | "NAME=\"Arch Linux\"\n" | |
491 | "ID=arch\n" | |
492 | "PRETTY_NAME=\"Arch Linux\"\n" | |
493 | "ANSI_COLOR=\"0;36\"\n" | |
494 | "HOME_URL=\"https://www.archlinux.org/\"\n" | |
495 | "SUPPORT_URL=\"https://bbs.archlinux.org/\"\n" | |
4c1fc3e4 DM |
496 | "BUG_REPORT_URL=\"https://bugs.archlinux.org/\"\n", |
497 | WRITE_STRING_FILE_CREATE); | |
e07995a3 RC |
498 | assert_se(r == 0); |
499 | ||
500 | f = fdopen(fd, "r"); | |
501 | assert_se(f); | |
502 | ||
aa8fbc74 | 503 | r = load_env_file_pairs(f, fn, &l); |
e07995a3 RC |
504 | assert_se(r >= 0); |
505 | ||
506 | assert_se(strv_length(l) == 14); | |
507 | STRV_FOREACH_PAIR(k, v, l) { | |
508 | assert_se(STR_IN_SET(*k, "NAME", "ID", "PRETTY_NAME", "ANSI_COLOR", "HOME_URL", "SUPPORT_URL", "BUG_REPORT_URL")); | |
509 | printf("%s=%s\n", *k, *v); | |
510 | if (streq(*k, "NAME")) assert_se(streq(*v, "Arch Linux")); | |
511 | if (streq(*k, "ID")) assert_se(streq(*v, "arch")); | |
512 | if (streq(*k, "PRETTY_NAME")) assert_se(streq(*v, "Arch Linux")); | |
513 | if (streq(*k, "ANSI_COLOR")) assert_se(streq(*v, "0;36")); | |
514 | if (streq(*k, "HOME_URL")) assert_se(streq(*v, "https://www.archlinux.org/")); | |
515 | if (streq(*k, "SUPPORT_URL")) assert_se(streq(*v, "https://bbs.archlinux.org/")); | |
516 | if (streq(*k, "BUG_REPORT_URL")) assert_se(streq(*v, "https://bugs.archlinux.org/")); | |
517 | } | |
e07995a3 RC |
518 | } |
519 | ||
4f7452a8 | 520 | TEST(search_and_fopen) { |
2708160c LP |
521 | static const char* const dirs[] = { |
522 | "/tmp/foo/bar", | |
523 | "/tmp", | |
524 | NULL | |
525 | }; | |
897891f0 | 526 | char name[] = "/tmp/test-search_and_fopen.XXXXXX"; |
2708160c LP |
527 | _cleanup_fclose_ FILE *f = NULL; |
528 | _cleanup_free_ char *p = NULL; | |
529 | _cleanup_close_ int fd = -1; | |
530 | const char *e; | |
531 | int r; | |
897891f0 | 532 | |
646853bd | 533 | fd = mkostemp_safe(name); |
897891f0 | 534 | assert_se(fd >= 0); |
2708160c | 535 | fd = safe_close(fd); |
897891f0 | 536 | |
2708160c | 537 | r = search_and_fopen(basename(name), "re", NULL, (const char**) dirs, &f, &p); |
897891f0 | 538 | assert_se(r >= 0); |
2708160c LP |
539 | assert_se(e = path_startswith(p, "/tmp/")); |
540 | assert_se(streq(basename(name), e)); | |
541 | f = safe_fclose(f); | |
542 | p = mfree(p); | |
897891f0 | 543 | |
2708160c | 544 | r = search_and_fopen(name, "re", NULL, (const char**) dirs, &f, &p); |
897891f0 | 545 | assert_se(r >= 0); |
2708160c LP |
546 | assert_se(path_equal(name, p)); |
547 | f = safe_fclose(f); | |
548 | p = mfree(p); | |
897891f0 | 549 | |
2708160c | 550 | r = search_and_fopen(basename(name), "re", "/", (const char**) dirs, &f, &p); |
897891f0 | 551 | assert_se(r >= 0); |
2708160c LP |
552 | assert_se(e = path_startswith(p, "/tmp/")); |
553 | assert_se(streq(basename(name), e)); | |
554 | f = safe_fclose(f); | |
555 | p = mfree(p); | |
897891f0 | 556 | |
2708160c LP |
557 | r = search_and_fopen("/a/file/which/does/not/exist/i/guess", "r", NULL, (const char**) dirs, &f, &p); |
558 | assert_se(r == -ENOENT); | |
559 | r = search_and_fopen("afilewhichdoesnotexistiguess", "r", NULL, (const char**) dirs, &f, &p); | |
560 | assert_se(r == -ENOENT); | |
897891f0 RC |
561 | |
562 | r = unlink(name); | |
563 | assert_se(r == 0); | |
564 | ||
2708160c LP |
565 | r = search_and_fopen(basename(name), "r", NULL, (const char**) dirs, &f, &p); |
566 | assert_se(r == -ENOENT); | |
897891f0 RC |
567 | } |
568 | ||
4f7452a8 | 569 | TEST(search_and_fopen_nulstr) { |
2708160c LP |
570 | static const char dirs[] = |
571 | "/tmp/foo/bar\0" | |
572 | "/tmp\0"; | |
627d2bac ZJS |
573 | |
574 | _cleanup_(unlink_tempfilep) char name[] = "/tmp/test-search_and_fopen.XXXXXX"; | |
2708160c LP |
575 | _cleanup_fclose_ FILE *f = NULL; |
576 | _cleanup_free_ char *p = NULL; | |
577 | _cleanup_close_ int fd = -1; | |
578 | const char *e; | |
579 | int r; | |
897891f0 | 580 | |
646853bd | 581 | fd = mkostemp_safe(name); |
897891f0 | 582 | assert_se(fd >= 0); |
2708160c | 583 | fd = safe_close(fd); |
897891f0 | 584 | |
2708160c | 585 | r = search_and_fopen_nulstr(basename(name), "re", NULL, dirs, &f, &p); |
897891f0 | 586 | assert_se(r >= 0); |
2708160c LP |
587 | assert_se(e = path_startswith(p, "/tmp/")); |
588 | assert_se(streq(basename(name), e)); | |
589 | f = safe_fclose(f); | |
590 | p = mfree(p); | |
897891f0 | 591 | |
2708160c | 592 | r = search_and_fopen_nulstr(name, "re", NULL, dirs, &f, &p); |
897891f0 | 593 | assert_se(r >= 0); |
2708160c LP |
594 | assert_se(path_equal(name, p)); |
595 | f = safe_fclose(f); | |
596 | p = mfree(p); | |
897891f0 | 597 | |
2708160c LP |
598 | r = search_and_fopen_nulstr("/a/file/which/does/not/exist/i/guess", "r", NULL, dirs, &f, &p); |
599 | assert_se(r == -ENOENT); | |
600 | r = search_and_fopen_nulstr("afilewhichdoesnotexistiguess", "r", NULL, dirs, &f, &p); | |
601 | assert_se(r == -ENOENT); | |
897891f0 RC |
602 | |
603 | r = unlink(name); | |
604 | assert_se(r == 0); | |
605 | ||
2708160c LP |
606 | r = search_and_fopen_nulstr(basename(name), "r", NULL, dirs, &f, &p); |
607 | assert_se(r == -ENOENT); | |
897891f0 RC |
608 | } |
609 | ||
4f7452a8 | 610 | TEST(writing_tmpfile) { |
627d2bac | 611 | _cleanup_(unlink_tempfilep) char name[] = "/tmp/test-systemd_writing_tmpfile.XXXXXX"; |
897891f0 RC |
612 | _cleanup_free_ char *contents = NULL; |
613 | size_t size; | |
9a92e255 | 614 | _cleanup_close_ int fd = -1; |
627d2bac | 615 | int r; |
897891f0 | 616 | |
d12ccbc3 ZJS |
617 | struct iovec iov[] = { |
618 | IOVEC_MAKE_STRING("abc\n"), | |
619 | IOVEC_MAKE_STRING(ALPHANUMERICAL "\n"), | |
620 | IOVEC_MAKE_STRING(""), | |
621 | }; | |
897891f0 | 622 | |
646853bd | 623 | fd = mkostemp_safe(name); |
897891f0 RC |
624 | printf("tmpfile: %s", name); |
625 | ||
626 | r = writev(fd, iov, 3); | |
627 | assert_se(r >= 0); | |
628 | ||
629 | r = read_full_file(name, &contents, &size); | |
630 | assert_se(r == 0); | |
631 | printf("contents: %s", contents); | |
632 | assert_se(streq(contents, "abc\n" ALPHANUMERICAL "\n")); | |
897891f0 RC |
633 | } |
634 | ||
4f7452a8 | 635 | TEST(tempfn) { |
897891f0 RC |
636 | char *ret = NULL, *p; |
637 | ||
638 | assert_se(tempfn_xxxxxx("/foo/bar/waldo", NULL, &ret) >= 0); | |
639 | assert_se(streq_ptr(ret, "/foo/bar/.#waldoXXXXXX")); | |
640 | free(ret); | |
641 | ||
642 | assert_se(tempfn_xxxxxx("/foo/bar/waldo", "[miau]", &ret) >= 0); | |
643 | assert_se(streq_ptr(ret, "/foo/bar/.#[miau]waldoXXXXXX")); | |
644 | free(ret); | |
645 | ||
646 | assert_se(tempfn_random("/foo/bar/waldo", NULL, &ret) >= 0); | |
647 | assert_se(p = startswith(ret, "/foo/bar/.#waldo")); | |
648 | assert_se(strlen(p) == 16); | |
649 | assert_se(in_charset(p, "0123456789abcdef")); | |
650 | free(ret); | |
651 | ||
652 | assert_se(tempfn_random("/foo/bar/waldo", "[wuff]", &ret) >= 0); | |
653 | assert_se(p = startswith(ret, "/foo/bar/.#[wuff]waldo")); | |
654 | assert_se(strlen(p) == 16); | |
655 | assert_se(in_charset(p, "0123456789abcdef")); | |
656 | free(ret); | |
657 | ||
658 | assert_se(tempfn_random_child("/foo/bar/waldo", NULL, &ret) >= 0); | |
659 | assert_se(p = startswith(ret, "/foo/bar/waldo/.#")); | |
660 | assert_se(strlen(p) == 16); | |
661 | assert_se(in_charset(p, "0123456789abcdef")); | |
662 | free(ret); | |
663 | ||
664 | assert_se(tempfn_random_child("/foo/bar/waldo", "[kikiriki]", &ret) >= 0); | |
665 | assert_se(p = startswith(ret, "/foo/bar/waldo/.#[kikiriki]")); | |
666 | assert_se(strlen(p) == 16); | |
667 | assert_se(in_charset(p, "0123456789abcdef")); | |
668 | free(ret); | |
669 | } | |
670 | ||
7f9d1aed | 671 | static const char chars[] = |
cdce33f9 | 672 | "Aąę„”\n루\377"; |
7f9d1aed | 673 | |
6028d766 | 674 | DISABLE_WARNING_TYPE_LIMITS; |
d3bdba38 | 675 | |
4f7452a8 | 676 | TEST(fgetc) { |
7f9d1aed ZJS |
677 | _cleanup_fclose_ FILE *f = NULL; |
678 | char c; | |
679 | ||
d12ccbc3 | 680 | assert_se(f = fmemopen_unlocked((void*) chars, sizeof(chars), "re")); |
7f9d1aed | 681 | |
72fd79b3 | 682 | for (size_t i = 0; i < sizeof(chars); i++) { |
7f9d1aed ZJS |
683 | assert_se(safe_fgetc(f, &c) == 1); |
684 | assert_se(c == chars[i]); | |
685 | ||
72fd79b3 LP |
686 | if (ungetc(c, f) == EOF) { |
687 | /* EOF is -1, and hence we can't push value 255 in this way – if char is signed */ | |
688 | assert_se(c == (char) EOF); | |
689 | assert_se(CHAR_MIN == -128); /* verify that char is signed on this platform */ | |
690 | } else { | |
691 | assert_se(safe_fgetc(f, &c) == 1); | |
692 | assert_se(c == chars[i]); | |
693 | } | |
7f9d1aed | 694 | |
cdce33f9 | 695 | /* But it works when we push it properly cast */ |
7f9d1aed ZJS |
696 | assert_se(ungetc((unsigned char) c, f) != EOF); |
697 | assert_se(safe_fgetc(f, &c) == 1); | |
698 | assert_se(c == chars[i]); | |
699 | } | |
700 | ||
701 | assert_se(safe_fgetc(f, &c) == 0); | |
702 | } | |
703 | ||
6028d766 | 704 | REENABLE_WARNING; |
d3bdba38 | 705 | |
2c9de139 ZJS |
706 | static const char buffer[] = |
707 | "Some test data\n" | |
7f9d1aed | 708 | "루Non-ascii chars: ąę„”\n" |
838894b0 LP |
709 | "terminators\r\n" |
710 | "and even more\n\r" | |
711 | "now the same with a NUL\n\0" | |
712 | "and more\r\0" | |
713 | "and even more\r\n\0" | |
714 | "and yet even more\n\r\0" | |
2c9de139 ZJS |
715 | "With newlines, and a NUL byte\0" |
716 | "\n" | |
717 | "an empty line\n" | |
718 | "an ignored line\n" | |
719 | "and a very long line that is supposed to be truncated, because it is so long\n"; | |
720 | ||
721 | static void test_read_line_one_file(FILE *f) { | |
4f9a66a3 LP |
722 | _cleanup_free_ char *line = NULL; |
723 | ||
f5fbe71d | 724 | assert_se(read_line(f, SIZE_MAX, &line) == 15 && streq(line, "Some test data")); |
4f9a66a3 LP |
725 | line = mfree(line); |
726 | ||
f5fbe71d | 727 | assert_se(read_line(f, SIZE_MAX, &line) > 0 && streq(line, "루Non-ascii chars: ąę„”")); |
838894b0 LP |
728 | line = mfree(line); |
729 | ||
f5fbe71d | 730 | assert_se(read_line(f, SIZE_MAX, &line) == 13 && streq(line, "terminators")); |
838894b0 LP |
731 | line = mfree(line); |
732 | ||
f5fbe71d | 733 | assert_se(read_line(f, SIZE_MAX, &line) == 15 && streq(line, "and even more")); |
838894b0 LP |
734 | line = mfree(line); |
735 | ||
f5fbe71d | 736 | assert_se(read_line(f, SIZE_MAX, &line) == 25 && streq(line, "now the same with a NUL")); |
838894b0 LP |
737 | line = mfree(line); |
738 | ||
f5fbe71d | 739 | assert_se(read_line(f, SIZE_MAX, &line) == 10 && streq(line, "and more")); |
838894b0 LP |
740 | line = mfree(line); |
741 | ||
f5fbe71d | 742 | assert_se(read_line(f, SIZE_MAX, &line) == 16 && streq(line, "and even more")); |
838894b0 LP |
743 | line = mfree(line); |
744 | ||
f5fbe71d | 745 | assert_se(read_line(f, SIZE_MAX, &line) == 20 && streq(line, "and yet even more")); |
838894b0 LP |
746 | line = mfree(line); |
747 | ||
4f9a66a3 LP |
748 | assert_se(read_line(f, 1024, &line) == 30 && streq(line, "With newlines, and a NUL byte")); |
749 | line = mfree(line); | |
750 | ||
751 | assert_se(read_line(f, 1024, &line) == 1 && streq(line, "")); | |
752 | line = mfree(line); | |
753 | ||
754 | assert_se(read_line(f, 1024, &line) == 14 && streq(line, "an empty line")); | |
755 | line = mfree(line); | |
756 | ||
f5fbe71d | 757 | assert_se(read_line(f, SIZE_MAX, NULL) == 16); |
4f9a66a3 LP |
758 | |
759 | assert_se(read_line(f, 16, &line) == -ENOBUFS); | |
760 | line = mfree(line); | |
761 | ||
762 | /* read_line() stopped when it hit the limit, that means when we continue reading we'll read at the first | |
5238e957 | 763 | * character after the previous limit. Let's make use of that to continue our test. */ |
838894b0 | 764 | assert_se(read_line(f, 1024, &line) == 62 && streq(line, "line that is supposed to be truncated, because it is so long")); |
4f9a66a3 LP |
765 | line = mfree(line); |
766 | ||
767 | assert_se(read_line(f, 1024, &line) == 0 && streq(line, "")); | |
768 | } | |
769 | ||
4f7452a8 | 770 | TEST(read_line1) { |
2c9de139 | 771 | _cleanup_fclose_ FILE *f = NULL; |
2c9de139 | 772 | |
d12ccbc3 | 773 | assert_se(f = fmemopen_unlocked((void*) buffer, sizeof(buffer), "re")); |
2c9de139 ZJS |
774 | test_read_line_one_file(f); |
775 | } | |
776 | ||
4f7452a8 | 777 | TEST(read_line2) { |
627d2bac | 778 | _cleanup_(unlink_tempfilep) char name[] = "/tmp/test-fileio.XXXXXX"; |
2c9de139 ZJS |
779 | int fd; |
780 | _cleanup_fclose_ FILE *f = NULL; | |
781 | ||
782 | fd = mkostemp_safe(name); | |
783 | assert_se(fd >= 0); | |
784 | assert_se((size_t) write(fd, buffer, sizeof(buffer)) == sizeof(buffer)); | |
785 | ||
786 | assert_se(lseek(fd, 0, SEEK_SET) == 0); | |
787 | assert_se(f = fdopen(fd, "r")); | |
788 | ||
789 | test_read_line_one_file(f); | |
790 | } | |
791 | ||
4f7452a8 | 792 | TEST(read_line3) { |
2c9de139 ZJS |
793 | _cleanup_fclose_ FILE *f = NULL; |
794 | _cleanup_free_ char *line = NULL; | |
795 | int r; | |
796 | ||
30b84c78 | 797 | f = fopen("/proc/uptime", "re"); |
2c9de139 ZJS |
798 | if (!f && IN_SET(errno, ENOENT, EPERM)) |
799 | return; | |
800 | assert_se(f); | |
801 | ||
802 | r = read_line(f, LINE_MAX, &line); | |
b4555637 ZJS |
803 | assert_se(r >= 0); |
804 | if (r == 0) | |
805 | assert_se(line && isempty(line)); | |
806 | else | |
807 | assert_se((size_t) r == strlen(line) + 1); | |
2c9de139 ZJS |
808 | assert_se(read_line(f, LINE_MAX, NULL) == 0); |
809 | } | |
810 | ||
4f7452a8 | 811 | TEST(read_line4) { |
6baac700 LP |
812 | static const struct { |
813 | size_t length; | |
814 | const char *string; | |
815 | } eof_endings[] = { | |
816 | /* Each of these will be followed by EOF and should generate the one same single string */ | |
817 | { 3, "foo" }, | |
818 | { 4, "foo\n" }, | |
819 | { 4, "foo\r" }, | |
820 | { 4, "foo\0" }, | |
821 | { 5, "foo\n\0" }, | |
822 | { 5, "foo\r\0" }, | |
823 | { 5, "foo\r\n" }, | |
824 | { 5, "foo\n\r" }, | |
825 | { 6, "foo\r\n\0" }, | |
826 | { 6, "foo\n\r\0" }, | |
827 | }; | |
828 | ||
6baac700 LP |
829 | int r; |
830 | ||
d12ccbc3 | 831 | for (size_t i = 0; i < ELEMENTSOF(eof_endings); i++) { |
6baac700 LP |
832 | _cleanup_fclose_ FILE *f = NULL; |
833 | _cleanup_free_ char *s = NULL; | |
834 | ||
673a1e6f | 835 | assert_se(f = fmemopen_unlocked((void*) eof_endings[i].string, eof_endings[i].length, "r")); |
6baac700 | 836 | |
f5fbe71d | 837 | r = read_line(f, SIZE_MAX, &s); |
6baac700 LP |
838 | assert_se((size_t) r == eof_endings[i].length); |
839 | assert_se(streq_ptr(s, "foo")); | |
840 | ||
f5fbe71d | 841 | assert_se(read_line(f, SIZE_MAX, NULL) == 0); /* Ensure we hit EOF */ |
6baac700 LP |
842 | } |
843 | } | |
844 | ||
4f7452a8 | 845 | TEST(read_nul_string) { |
3946d576 LP |
846 | static const char test[] = "string nr. 1\0" |
847 | "string nr. 2\n\0" | |
517b7760 | 848 | "\377empty string follows\0" |
3946d576 LP |
849 | "\0" |
850 | "final string\n is empty\0" | |
851 | "\0"; | |
852 | ||
853 | _cleanup_fclose_ FILE *f = NULL; | |
854 | _cleanup_free_ char *s = NULL; | |
855 | ||
673a1e6f | 856 | assert_se(f = fmemopen_unlocked((void*) test, sizeof(test)-1, "r")); |
3946d576 LP |
857 | |
858 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 13 && streq_ptr(s, "string nr. 1")); | |
859 | s = mfree(s); | |
860 | ||
861 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 14 && streq_ptr(s, "string nr. 2\n")); | |
862 | s = mfree(s); | |
863 | ||
517b7760 | 864 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 22 && streq_ptr(s, "\377empty string follows")); |
3946d576 LP |
865 | s = mfree(s); |
866 | ||
867 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 1 && streq_ptr(s, "")); | |
868 | s = mfree(s); | |
869 | ||
870 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 23 && streq_ptr(s, "final string\n is empty")); | |
871 | s = mfree(s); | |
872 | ||
873 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 1 && streq_ptr(s, "")); | |
874 | s = mfree(s); | |
875 | ||
876 | assert_se(read_nul_string(f, LONG_LINE_MAX, &s) == 0 && streq_ptr(s, "")); | |
877 | } | |
878 | ||
4f7452a8 | 879 | TEST(read_full_file_socket) { |
b93d3f6b LP |
880 | _cleanup_(rm_rf_physical_and_freep) char *z = NULL; |
881 | _cleanup_close_ int listener = -1; | |
d3dcf4e3 | 882 | _cleanup_free_ char *data = NULL, *clientname = NULL; |
b93d3f6b | 883 | union sockaddr_union sa; |
28ae8da9 | 884 | const char *j, *jj; |
b93d3f6b LP |
885 | size_t size; |
886 | pid_t pid; | |
887 | int r; | |
888 | ||
b93d3f6b LP |
889 | listener = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); |
890 | assert_se(listener >= 0); | |
891 | ||
892 | assert_se(mkdtemp_malloc(NULL, &z) >= 0); | |
893 | j = strjoina(z, "/socket"); | |
894 | ||
895 | assert_se(sockaddr_un_set_path(&sa.un, j) >= 0); | |
896 | ||
897 | assert_se(bind(listener, &sa.sa, SOCKADDR_UN_LEN(sa.un)) >= 0); | |
898 | assert_se(listen(listener, 1) >= 0); | |
899 | ||
28ae8da9 LP |
900 | /* Make sure the socket doesn't fit into a struct sockaddr_un, but we can still access it */ |
901 | 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"); | |
902 | assert_se(strlen(jj) > sizeof_field(struct sockaddr_un, sun_path)); | |
903 | assert_se(rename(j, jj) >= 0); | |
904 | ||
d3dcf4e3 LP |
905 | /* Bind the *client* socket to some randomized name, to verify that this works correctly. */ |
906 | assert_se(asprintf(&clientname, "@%" PRIx64 "/test-bindname", random_u64()) >= 0); | |
907 | ||
b93d3f6b LP |
908 | r = safe_fork("(server)", FORK_DEATHSIG|FORK_LOG, &pid); |
909 | assert_se(r >= 0); | |
910 | if (r == 0) { | |
d3dcf4e3 LP |
911 | union sockaddr_union peer = {}; |
912 | socklen_t peerlen = sizeof(peer); | |
b93d3f6b LP |
913 | _cleanup_close_ int rfd = -1; |
914 | /* child */ | |
915 | ||
916 | rfd = accept4(listener, NULL, 0, SOCK_CLOEXEC); | |
917 | assert_se(rfd >= 0); | |
918 | ||
d3dcf4e3 LP |
919 | assert_se(getpeername(rfd, &peer.sa, &peerlen) >= 0); |
920 | ||
921 | assert_se(peer.un.sun_family == AF_UNIX); | |
922 | assert_se(peerlen > offsetof(struct sockaddr_un, sun_path)); | |
923 | assert_se(peer.un.sun_path[0] == 0); | |
924 | assert_se(streq(peer.un.sun_path + 1, clientname + 1)); | |
925 | ||
b93d3f6b LP |
926 | #define TEST_STR "This is a test\nreally." |
927 | ||
928 | assert_se(write(rfd, TEST_STR, strlen(TEST_STR)) == strlen(TEST_STR)); | |
929 | _exit(EXIT_SUCCESS); | |
930 | } | |
931 | ||
28ae8da9 LP |
932 | assert_se(read_full_file_full(AT_FDCWD, jj, UINT64_MAX, SIZE_MAX, 0, NULL, &data, &size) == -ENXIO); |
933 | assert_se(read_full_file_full(AT_FDCWD, jj, UINT64_MAX, SIZE_MAX, READ_FULL_FILE_CONNECT_SOCKET, clientname, &data, &size) >= 0); | |
b93d3f6b LP |
934 | assert_se(size == strlen(TEST_STR)); |
935 | assert_se(streq(data, TEST_STR)); | |
936 | ||
937 | assert_se(wait_for_terminate_and_check("(server)", pid, WAIT_LOG) >= 0); | |
938 | #undef TEST_STR | |
939 | } | |
940 | ||
4f7452a8 | 941 | TEST(read_full_file_offset_size) { |
986311c2 LP |
942 | _cleanup_fclose_ FILE *f = NULL; |
943 | _cleanup_(unlink_and_freep) char *fn = NULL; | |
944 | _cleanup_free_ char *rbuf = NULL; | |
945 | size_t rbuf_size; | |
946 | uint8_t buf[4711]; | |
947 | ||
948 | random_bytes(buf, sizeof(buf)); | |
949 | ||
950 | assert_se(tempfn_random_child(NULL, NULL, &fn) >= 0); | |
951 | assert_se(f = fopen(fn, "we")); | |
952 | assert_se(fwrite(buf, 1, sizeof(buf), f) == sizeof(buf)); | |
953 | assert_se(fflush_and_check(f) >= 0); | |
954 | ||
955 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, SIZE_MAX, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
956 | assert_se(rbuf_size == sizeof(buf)); | |
957 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
958 | rbuf = mfree(rbuf); | |
959 | ||
960 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, 128, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
961 | assert_se(rbuf_size == 128); | |
962 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
963 | rbuf = mfree(rbuf); | |
964 | ||
7b0da71d LP |
965 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, 128, 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)-1, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); | |
967 | assert_se(read_full_file_full(AT_FDCWD, fn, UINT64_MAX, sizeof(buf), READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) >= 0); | |
968 | assert_se(rbuf_size == sizeof(buf)); | |
969 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
970 | rbuf = mfree(rbuf); | |
971 | ||
972 | assert_se(read_full_file_full(AT_FDCWD, fn, 47, 128, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); | |
973 | assert_se(read_full_file_full(AT_FDCWD, fn, 47, sizeof(buf)-47-1, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) == -E2BIG); | |
974 | assert_se(read_full_file_full(AT_FDCWD, fn, 47, sizeof(buf)-47, READ_FULL_FILE_FAIL_WHEN_LARGER, NULL, &rbuf, &rbuf_size) >= 0); | |
975 | assert_se(rbuf_size == sizeof(buf)-47); | |
976 | assert_se(memcmp(buf+47, rbuf, rbuf_size) == 0); | |
977 | rbuf = mfree(rbuf); | |
978 | ||
979 | 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); | |
980 | assert_se(rbuf_size == sizeof(buf)); | |
981 | assert_se(memcmp(buf, rbuf, rbuf_size) == 0); | |
982 | rbuf = mfree(rbuf); | |
983 | ||
986311c2 LP |
984 | assert_se(read_full_file_full(AT_FDCWD, fn, 1234, SIZE_MAX, 0, NULL, &rbuf, &rbuf_size) >= 0); |
985 | assert_se(rbuf_size == sizeof(buf) - 1234); | |
986 | assert_se(memcmp(buf + 1234, rbuf, rbuf_size) == 0); | |
987 | rbuf = mfree(rbuf); | |
988 | ||
989 | assert_se(read_full_file_full(AT_FDCWD, fn, 2345, 777, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
990 | assert_se(rbuf_size == 777); | |
991 | assert_se(memcmp(buf + 2345, rbuf, rbuf_size) == 0); | |
992 | rbuf = mfree(rbuf); | |
993 | ||
994 | assert_se(read_full_file_full(AT_FDCWD, fn, 4700, 20, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
995 | assert_se(rbuf_size == 11); | |
996 | assert_se(memcmp(buf + 4700, rbuf, rbuf_size) == 0); | |
997 | rbuf = mfree(rbuf); | |
998 | ||
999 | assert_se(read_full_file_full(AT_FDCWD, fn, 10000, 99, 0, NULL, &rbuf, &rbuf_size) >= 0); | |
1000 | assert_se(rbuf_size == 0); | |
1001 | rbuf = mfree(rbuf); | |
1002 | } | |
1003 | ||
4f7452a8 | 1004 | static void test_read_virtual_file_one(size_t max_size) { |
bca895c4 ZJS |
1005 | int r; |
1006 | ||
d12ccbc3 ZJS |
1007 | log_info("/* %s (max_size=%zu) */", __func__, max_size); |
1008 | ||
bca895c4 ZJS |
1009 | FOREACH_STRING(filename, |
1010 | "/proc/1/cmdline", | |
1011 | "/etc/nsswitch.conf", | |
f3b75122 LP |
1012 | "/sys/kernel/uevent_seqnum", |
1013 | "/proc/kcore", | |
1014 | "/proc/kallsyms", | |
1015 | "/proc/self/exe", | |
1016 | "/proc/self/pagemap") { | |
bca895c4 ZJS |
1017 | |
1018 | _cleanup_free_ char *buf = NULL; | |
1019 | size_t size = 0; | |
1020 | ||
ad0e687c | 1021 | r = read_virtual_file(filename, max_size, &buf, &size); |
8461d6da LP |
1022 | if (r < 0) { |
1023 | log_info_errno(r, "read_virtual_file(\"%s\", %zu): %m", filename, max_size); | |
f3b75122 LP |
1024 | assert_se(ERRNO_IS_PRIVILEGE(r) || /* /proc/kcore is not accessible to unpriv */ |
1025 | IN_SET(r, | |
1026 | -ENOENT, /* Some of the files might be absent */ | |
1027 | -EINVAL, /* too small reads from /proc/self/pagemap trigger EINVAL */ | |
1028 | -EFBIG)); /* /proc/kcore and /proc/self/pagemap should be too large */ | |
8461d6da LP |
1029 | } else |
1030 | log_info("read_virtual_file(\"%s\", %zu): %s (%zu bytes)", filename, max_size, r ? "non-truncated" : "truncated", size); | |
bca895c4 ZJS |
1031 | } |
1032 | } | |
1033 | ||
4f7452a8 JJ |
1034 | TEST(test_read_virtual_file) { |
1035 | test_read_virtual_file_one(0); | |
1036 | test_read_virtual_file_one(1); | |
1037 | test_read_virtual_file_one(2); | |
1038 | test_read_virtual_file_one(20); | |
1039 | test_read_virtual_file_one(4096); | |
1040 | test_read_virtual_file_one(4097); | |
1041 | test_read_virtual_file_one(SIZE_MAX); | |
f73141d7 | 1042 | } |
4f7452a8 JJ |
1043 | |
1044 | DEFINE_TEST_MAIN(LOG_DEBUG); |