1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2013 Lennart Poettering
12 #include "alloc-util.h"
20 #include "parse-util.h"
21 #include "process-util.h"
22 #include "string-util.h"
26 static void test_parse_env_file(void) {
27 _cleanup_(unlink_tempfilep
) char
28 t
[] = "/tmp/test-fileio-in-XXXXXX",
29 p
[] = "/tmp/test-fileio-out-XXXXXX";
32 _cleanup_free_
char *one
= NULL
, *two
= NULL
, *three
= NULL
, *four
= NULL
, *five
= NULL
,
33 *six
= NULL
, *seven
= NULL
, *eight
= NULL
, *nine
= NULL
, *ten
= NULL
;
34 _cleanup_strv_free_
char **a
= NULL
, **b
= NULL
;
38 fd
= mkostemp_safe(p
);
42 fd
= mkostemp_safe(t
);
54 "invalid line #comment\n"
57 "four = \'44\\\"44\'\n"
58 "five = \'55\\\'55\' \"FIVE\" cinco \n"
59 "six = seis sechs\\\n"
61 "seven=\"sevenval\" #nocomment\n"
62 "eight=eightval #nocomment\n"
63 "export nine=nineval\n"
71 r
= load_env_file(NULL
, t
, NULL
, &a
);
75 log_info("Got: <%s>", *i
);
77 assert_se(streq_ptr(a
[0], "one=BAR"));
78 assert_se(streq_ptr(a
[1], "two=bar"));
79 assert_se(streq_ptr(a
[2], "three=333\nxxxx"));
80 assert_se(streq_ptr(a
[3], "four=44\"44"));
81 assert_se(streq_ptr(a
[4], "five=55\'55FIVEcinco"));
82 assert_se(streq_ptr(a
[5], "six=seis sechs sis"));
83 assert_se(streq_ptr(a
[6], "seven=sevenval#nocomment"));
84 assert_se(streq_ptr(a
[7], "eight=eightval #nocomment"));
85 assert_se(streq_ptr(a
[8], "export nine=nineval"));
86 assert_se(streq_ptr(a
[9], "ten="));
87 assert_se(a
[10] == NULL
);
93 log_info("Got2: <%s>", *i
);
94 assert_se(streq(*i
, a
[k
++]));
107 "export nine", &nine
,
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
));
120 log_info("eight=[%s]", strna(eight
));
121 log_info("export nine=[%s]", strna(nine
));
122 log_info("ten=[%s]", strna(nine
));
124 assert_se(streq(one
, "BAR"));
125 assert_se(streq(two
, "bar"));
126 assert_se(streq(three
, "333\nxxxx"));
127 assert_se(streq(four
, "44\"44"));
128 assert_se(streq(five
, "55\'55FIVEcinco"));
129 assert_se(streq(six
, "seis sechs sis"));
130 assert_se(streq(seven
, "sevenval#nocomment"));
131 assert_se(streq(eight
, "eightval #nocomment"));
132 assert_se(streq(nine
, "nineval"));
133 assert_se(ten
== NULL
);
135 r
= write_env_file(p
, a
);
138 r
= load_env_file(NULL
, p
, NULL
, &b
);
142 static void test_parse_multiline_env_file(void) {
143 _cleanup_(unlink_tempfilep
) char
144 t
[] = "/tmp/test-fileio-in-XXXXXX",
145 p
[] = "/tmp/test-fileio-out-XXXXXX";
148 _cleanup_strv_free_
char **a
= NULL
, **b
= NULL
;
151 fd
= mkostemp_safe(p
);
155 fd
= mkostemp_safe(t
);
176 r
= load_env_file(NULL
, t
, NULL
, &a
);
180 log_info("Got: <%s>", *i
);
182 assert_se(streq_ptr(a
[0], "one=BAR VAR\tGAR"));
183 assert_se(streq_ptr(a
[1], "two=bar var\tgar"));
184 assert_se(streq_ptr(a
[2], "tri=bar var \tgar "));
185 assert_se(a
[3] == NULL
);
187 r
= write_env_file(p
, a
);
190 r
= load_env_file(NULL
, p
, NULL
, &b
);
194 static void test_merge_env_file(void) {
195 _cleanup_(unlink_tempfilep
) char t
[] = "/tmp/test-fileio-XXXXXX";
197 _cleanup_fclose_
FILE *f
= NULL
;
198 _cleanup_strv_free_
char **a
= NULL
;
201 fd
= mkostemp_safe(t
);
204 log_info("/* %s (%s) */", __func__
, t
);
209 r
= write_string_stream(f
,
212 "twentyone=2${one}\n"
214 "twentytwo=2${one}\n"
215 "xxx_minus_three=$xxx - 3\n"
216 "xxx=0x$one$one$one\n"
217 "yyy=${one:-fallback}\n"
218 "zzz=${one:+replacement}\n"
219 "zzzz=${foobar:-${nothing}}\n"
220 "zzzzz=${nothing:+${nothing}}\n"
221 , WRITE_STRING_FILE_AVOID_NEWLINE
);
224 r
= merge_env_file(&a
, NULL
, t
);
229 log_info("Got: <%s>", *i
);
231 assert_se(streq(a
[0], "one=2"));
232 assert_se(streq(a
[1], "twelve=12"));
233 assert_se(streq(a
[2], "twentyone=21"));
234 assert_se(streq(a
[3], "twentytwo=22"));
235 assert_se(streq(a
[4], "xxx=0x222"));
236 assert_se(streq(a
[5], "xxx_minus_three= - 3"));
237 assert_se(streq(a
[6], "yyy=2"));
238 assert_se(streq(a
[7], "zzz=replacement"));
239 assert_se(streq(a
[8], "zzzz="));
240 assert_se(streq(a
[9], "zzzzz="));
241 assert_se(a
[10] == NULL
);
243 r
= merge_env_file(&a
, NULL
, t
);
248 log_info("Got2: <%s>", *i
);
250 assert_se(streq(a
[0], "one=2"));
251 assert_se(streq(a
[1], "twelve=12"));
252 assert_se(streq(a
[2], "twentyone=21"));
253 assert_se(streq(a
[3], "twentytwo=22"));
254 assert_se(streq(a
[4], "xxx=0x222"));
255 assert_se(streq(a
[5], "xxx_minus_three=0x222 - 3"));
256 assert_se(streq(a
[6], "yyy=2"));
257 assert_se(streq(a
[7], "zzz=replacement"));
258 assert_se(streq(a
[8], "zzzz="));
259 assert_se(streq(a
[9], "zzzzz="));
260 assert_se(a
[10] == NULL
);
263 static void test_merge_env_file_invalid(void) {
264 _cleanup_(unlink_tempfilep
) char t
[] = "/tmp/test-fileio-XXXXXX";
266 _cleanup_fclose_
FILE *f
= NULL
;
267 _cleanup_strv_free_
char **a
= NULL
;
270 fd
= mkostemp_safe(t
);
273 log_info("/* %s (%s) */", __func__
, t
);
278 r
= write_string_stream(f
,
287 ";comment2=comment2\n"
289 "\n\n" /* empty line */
290 , WRITE_STRING_FILE_AVOID_NEWLINE
);
293 r
= merge_env_file(&a
, NULL
, t
);
297 log_info("Got: <%s>", *i
);
299 assert_se(strv_isempty(a
));
302 static void test_executable_is_script(void) {
303 _cleanup_(unlink_tempfilep
) char t
[] = "/tmp/test-fileio-XXXXXX";
305 _cleanup_fclose_
FILE *f
= NULL
;
308 fd
= mkostemp_safe(t
);
314 fputs("#! /bin/script -a -b \ngoo goo", f
);
317 r
= executable_is_script(t
, &command
);
319 assert_se(streq(command
, "/bin/script"));
322 r
= executable_is_script("/bin/sh", &command
);
325 r
= executable_is_script("/usr/bin/yum", &command
);
326 assert_se(r
> 0 || r
== -ENOENT
);
328 assert_se(startswith(command
, "/"));
333 static void test_status_field(void) {
334 _cleanup_free_
char *t
= NULL
, *p
= NULL
, *s
= NULL
, *z
= NULL
;
335 unsigned long long total
= 0, buffers
= 0;
338 assert_se(get_proc_field("/proc/self/status", "Threads", WHITESPACE
, &t
) == 0);
340 assert_se(streq(t
, "1"));
342 r
= get_proc_field("/proc/meminfo", "MemTotal", WHITESPACE
, &p
);
346 assert_se(safe_atollu(p
, &total
) == 0);
349 r
= get_proc_field("/proc/meminfo", "Buffers", WHITESPACE
, &s
);
353 assert_se(safe_atollu(s
, &buffers
) == 0);
357 assert_se(buffers
< total
);
359 /* Seccomp should be a good test for field full of zeros. */
360 r
= get_proc_field("/proc/meminfo", "Seccomp", WHITESPACE
, &z
);
364 assert_se(safe_atollu(z
, &buffers
) == 0);
368 static void test_capeff(void) {
371 for (pid
= 0; pid
< 2; pid
++) {
372 _cleanup_free_
char *capeff
= NULL
;
375 r
= get_process_capeff(0, &capeff
);
376 log_info("capeff: '%s' (r=%d)", capeff
, r
);
378 if (IN_SET(r
, -ENOENT
, -EPERM
))
383 p
= capeff
[strspn(capeff
, HEXDIGITS
)];
384 assert_se(!p
|| isspace(p
));
388 static void test_write_string_stream(void) {
389 _cleanup_(unlink_tempfilep
) char fn
[] = "/tmp/test-write_string_stream-XXXXXX";
390 _cleanup_fclose_
FILE *f
= NULL
;
394 fd
= mkostemp_safe(fn
);
399 assert_se(write_string_stream(f
, "boohoo", 0) < 0);
405 assert_se(write_string_stream(f
, "boohoo", 0) == 0);
408 assert_se(fgets(buf
, sizeof(buf
), f
));
409 assert_se(streq(buf
, "boohoo\n"));
415 assert_se(write_string_stream(f
, "boohoo", WRITE_STRING_FILE_AVOID_NEWLINE
) == 0);
418 assert_se(fgets(buf
, sizeof(buf
), f
));
420 assert_se(streq(buf
, "boohoo"));
423 static void test_write_string_file(void) {
424 _cleanup_(unlink_tempfilep
) char fn
[] = "/tmp/test-write_string_file-XXXXXX";
426 _cleanup_close_
int fd
;
428 fd
= mkostemp_safe(fn
);
431 assert_se(write_string_file(fn
, "boohoo", WRITE_STRING_FILE_CREATE
) == 0);
433 assert_se(read(fd
, buf
, sizeof(buf
)) == 7);
434 assert_se(streq(buf
, "boohoo\n"));
437 static void test_write_string_file_no_create(void) {
438 _cleanup_(unlink_tempfilep
) char fn
[] = "/tmp/test-write_string_file_no_create-XXXXXX";
439 _cleanup_close_
int fd
;
442 fd
= mkostemp_safe(fn
);
445 assert_se(write_string_file("/a/file/which/does/not/exists/i/guess", "boohoo", 0) < 0);
446 assert_se(write_string_file(fn
, "boohoo", 0) == 0);
448 assert_se(read(fd
, buf
, sizeof(buf
)) == STRLEN("boohoo\n"));
449 assert_se(streq(buf
, "boohoo\n"));
452 static void test_write_string_file_verify(void) {
453 _cleanup_free_
char *buf
= NULL
, *buf2
= NULL
;
456 assert_se(read_one_line_file("/proc/cmdline", &buf
) >= 0);
457 assert_se(buf2
= strjoin(buf
, "\n"));
459 r
= write_string_file("/proc/cmdline", buf
, 0);
460 assert_se(IN_SET(r
, -EACCES
, -EIO
));
461 r
= write_string_file("/proc/cmdline", buf2
, 0);
462 assert_se(IN_SET(r
, -EACCES
, -EIO
));
464 assert_se(write_string_file("/proc/cmdline", buf
, WRITE_STRING_FILE_VERIFY_ON_FAILURE
) == 0);
465 assert_se(write_string_file("/proc/cmdline", buf2
, WRITE_STRING_FILE_VERIFY_ON_FAILURE
) == 0);
467 r
= write_string_file("/proc/cmdline", buf
, WRITE_STRING_FILE_VERIFY_ON_FAILURE
|WRITE_STRING_FILE_AVOID_NEWLINE
);
468 assert_se(IN_SET(r
, -EACCES
, -EIO
));
469 assert_se(write_string_file("/proc/cmdline", buf2
, WRITE_STRING_FILE_VERIFY_ON_FAILURE
|WRITE_STRING_FILE_AVOID_NEWLINE
) == 0);
472 static void test_load_env_file_pairs(void) {
473 _cleanup_(unlink_tempfilep
) char fn
[] = "/tmp/test-load_env_file_pairs-XXXXXX";
475 _cleanup_fclose_
FILE *f
= NULL
;
476 _cleanup_strv_free_
char **l
= NULL
;
479 fd
= mkostemp_safe(fn
);
482 r
= write_string_file(fn
,
483 "NAME=\"Arch Linux\"\n"
485 "PRETTY_NAME=\"Arch Linux\"\n"
486 "ANSI_COLOR=\"0;36\"\n"
487 "HOME_URL=\"https://www.archlinux.org/\"\n"
488 "SUPPORT_URL=\"https://bbs.archlinux.org/\"\n"
489 "BUG_REPORT_URL=\"https://bugs.archlinux.org/\"\n",
490 WRITE_STRING_FILE_CREATE
);
496 r
= load_env_file_pairs(f
, fn
, NULL
, &l
);
499 assert_se(strv_length(l
) == 14);
500 STRV_FOREACH_PAIR(k
, v
, l
) {
501 assert_se(STR_IN_SET(*k
, "NAME", "ID", "PRETTY_NAME", "ANSI_COLOR", "HOME_URL", "SUPPORT_URL", "BUG_REPORT_URL"));
502 printf("%s=%s\n", *k
, *v
);
503 if (streq(*k
, "NAME")) assert_se(streq(*v
, "Arch Linux"));
504 if (streq(*k
, "ID")) assert_se(streq(*v
, "arch"));
505 if (streq(*k
, "PRETTY_NAME")) assert_se(streq(*v
, "Arch Linux"));
506 if (streq(*k
, "ANSI_COLOR")) assert_se(streq(*v
, "0;36"));
507 if (streq(*k
, "HOME_URL")) assert_se(streq(*v
, "https://www.archlinux.org/"));
508 if (streq(*k
, "SUPPORT_URL")) assert_se(streq(*v
, "https://bbs.archlinux.org/"));
509 if (streq(*k
, "BUG_REPORT_URL")) assert_se(streq(*v
, "https://bugs.archlinux.org/"));
513 static void test_search_and_fopen(void) {
514 const char *dirs
[] = {"/tmp/foo/bar", "/tmp", NULL
};
516 char name
[] = "/tmp/test-search_and_fopen.XXXXXX";
520 fd
= mkostemp_safe(name
);
524 r
= search_and_fopen(basename(name
), "r", NULL
, dirs
, &f
);
528 r
= search_and_fopen(name
, "r", NULL
, dirs
, &f
);
532 r
= search_and_fopen(basename(name
), "r", "/", dirs
, &f
);
536 r
= search_and_fopen("/a/file/which/does/not/exist/i/guess", "r", NULL
, dirs
, &f
);
538 r
= search_and_fopen("afilewhichdoesnotexistiguess", "r", NULL
, dirs
, &f
);
544 r
= search_and_fopen(basename(name
), "r", NULL
, dirs
, &f
);
548 static void test_search_and_fopen_nulstr(void) {
549 const char dirs
[] = "/tmp/foo/bar\0/tmp\0";
551 _cleanup_(unlink_tempfilep
) char name
[] = "/tmp/test-search_and_fopen.XXXXXX";
555 fd
= mkostemp_safe(name
);
559 r
= search_and_fopen_nulstr(basename(name
), "r", NULL
, dirs
, &f
);
563 r
= search_and_fopen_nulstr(name
, "r", NULL
, dirs
, &f
);
567 r
= search_and_fopen_nulstr("/a/file/which/does/not/exist/i/guess", "r", NULL
, dirs
, &f
);
569 r
= search_and_fopen_nulstr("afilewhichdoesnotexistiguess", "r", NULL
, dirs
, &f
);
575 r
= search_and_fopen_nulstr(basename(name
), "r", NULL
, dirs
, &f
);
579 static void test_writing_tmpfile(void) {
580 _cleanup_(unlink_tempfilep
) char name
[] = "/tmp/test-systemd_writing_tmpfile.XXXXXX";
581 _cleanup_free_
char *contents
= NULL
;
583 _cleanup_close_
int fd
= -1;
587 iov
[0] = IOVEC_MAKE_STRING("abc\n");
588 iov
[1] = IOVEC_MAKE_STRING(ALPHANUMERICAL
"\n");
589 iov
[2] = IOVEC_MAKE_STRING("");
591 fd
= mkostemp_safe(name
);
592 printf("tmpfile: %s", name
);
594 r
= writev(fd
, iov
, 3);
597 r
= read_full_file(name
, &contents
, &size
);
599 printf("contents: %s", contents
);
600 assert_se(streq(contents
, "abc\n" ALPHANUMERICAL
"\n"));
603 static void test_tempfn(void) {
604 char *ret
= NULL
, *p
;
606 assert_se(tempfn_xxxxxx("/foo/bar/waldo", NULL
, &ret
) >= 0);
607 assert_se(streq_ptr(ret
, "/foo/bar/.#waldoXXXXXX"));
610 assert_se(tempfn_xxxxxx("/foo/bar/waldo", "[miau]", &ret
) >= 0);
611 assert_se(streq_ptr(ret
, "/foo/bar/.#[miau]waldoXXXXXX"));
614 assert_se(tempfn_random("/foo/bar/waldo", NULL
, &ret
) >= 0);
615 assert_se(p
= startswith(ret
, "/foo/bar/.#waldo"));
616 assert_se(strlen(p
) == 16);
617 assert_se(in_charset(p
, "0123456789abcdef"));
620 assert_se(tempfn_random("/foo/bar/waldo", "[wuff]", &ret
) >= 0);
621 assert_se(p
= startswith(ret
, "/foo/bar/.#[wuff]waldo"));
622 assert_se(strlen(p
) == 16);
623 assert_se(in_charset(p
, "0123456789abcdef"));
626 assert_se(tempfn_random_child("/foo/bar/waldo", NULL
, &ret
) >= 0);
627 assert_se(p
= startswith(ret
, "/foo/bar/waldo/.#"));
628 assert_se(strlen(p
) == 16);
629 assert_se(in_charset(p
, "0123456789abcdef"));
632 assert_se(tempfn_random_child("/foo/bar/waldo", "[kikiriki]", &ret
) >= 0);
633 assert_se(p
= startswith(ret
, "/foo/bar/waldo/.#[kikiriki]"));
634 assert_se(strlen(p
) == 16);
635 assert_se(in_charset(p
, "0123456789abcdef"));
639 static const char buffer
[] =
641 "With newlines, and a NUL byte\0"
645 "and a very long line that is supposed to be truncated, because it is so long\n";
647 static void test_read_line_one_file(FILE *f
) {
648 _cleanup_free_
char *line
= NULL
;
650 assert_se(read_line(f
, (size_t) -1, &line
) == 15 && streq(line
, "Some test data"));
653 assert_se(read_line(f
, 1024, &line
) == 30 && streq(line
, "With newlines, and a NUL byte"));
656 assert_se(read_line(f
, 1024, &line
) == 1 && streq(line
, ""));
659 assert_se(read_line(f
, 1024, &line
) == 14 && streq(line
, "an empty line"));
662 assert_se(read_line(f
, (size_t) -1, NULL
) == 16);
664 assert_se(read_line(f
, 16, &line
) == -ENOBUFS
);
667 /* read_line() stopped when it hit the limit, that means when we continue reading we'll read at the first
668 * character after the previous limit. Let's make use of tha to continue our test. */
669 assert_se(read_line(f
, 1024, &line
) == 61 && streq(line
, "line that is supposed to be truncated, because it is so long"));
672 assert_se(read_line(f
, 1024, &line
) == 1 && streq(line
, ""));
675 assert_se(read_line(f
, 1024, &line
) == 0 && streq(line
, ""));
678 static void test_read_line(void) {
679 _cleanup_fclose_
FILE *f
= NULL
;
681 f
= fmemopen((void*) buffer
, sizeof(buffer
), "re");
684 test_read_line_one_file(f
);
687 static void test_read_line2(void) {
688 _cleanup_(unlink_tempfilep
) char name
[] = "/tmp/test-fileio.XXXXXX";
690 _cleanup_fclose_
FILE *f
= NULL
;
692 fd
= mkostemp_safe(name
);
694 assert_se((size_t) write(fd
, buffer
, sizeof(buffer
)) == sizeof(buffer
));
696 assert_se(lseek(fd
, 0, SEEK_SET
) == 0);
697 assert_se(f
= fdopen(fd
, "r"));
699 test_read_line_one_file(f
);
702 static void test_read_line3(void) {
703 _cleanup_fclose_
FILE *f
= NULL
;
704 _cleanup_free_
char *line
= NULL
;
707 f
= fopen("/proc/cmdline", "re");
708 if (!f
&& IN_SET(errno
, ENOENT
, EPERM
))
712 r
= read_line(f
, LINE_MAX
, &line
);
713 assert_se((size_t) r
== strlen(line
) + 1);
714 assert_se(read_line(f
, LINE_MAX
, NULL
) == 0);
717 int main(int argc
, char *argv
[]) {
718 log_set_max_level(LOG_DEBUG
);
719 log_parse_environment();
722 test_parse_env_file();
723 test_parse_multiline_env_file();
724 test_merge_env_file();
725 test_merge_env_file_invalid();
726 test_executable_is_script();
729 test_write_string_stream();
730 test_write_string_file();
731 test_write_string_file_no_create();
732 test_write_string_file_verify();
733 test_load_env_file_pairs();
734 test_search_and_fopen();
735 test_search_and_fopen_nulstr();
736 test_writing_tmpfile();