82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/***
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This file is part of systemd.
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Copyright 2014 Zbigniew Jędrzejewski-Szmek
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "alloc-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "format-util.h"
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#include "fs-util.h"
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#include "log.h"
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#include "string-util.h"
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#include "util.h"
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int main(int argc, char** argv) {
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_cleanup_free_ char *cmd = NULL, *cmd2 = NULL, *ans = NULL, *ans2 = NULL, *d = NULL, *tmp = NULL, *line = NULL;
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_cleanup_close_ int fd = -1, fd2 = -1;
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const char *p = argv[1] ?: "/tmp";
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char *pattern;
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log_set_max_level(LOG_DEBUG);
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log_parse_environment();
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pattern = strjoina(p, "/systemd-test-XXXXXX");
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fd = open_tmpfile_unlinkable(p, O_RDWR|O_CLOEXEC);
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assert_se(fd >= 0);
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assert_se(asprintf(&cmd, "ls -l /proc/"PID_FMT"/fd/%d", getpid(), fd) > 0);
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(void) system(cmd);
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assert_se(readlink_malloc(cmd + 6, &ans) >= 0);
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log_debug("link1: %s", ans);
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assert_se(endswith(ans, " (deleted)"));
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fd2 = mkostemp_safe(pattern);
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assert_se(fd >= 0);
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assert_se(unlink(pattern) == 0);
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assert_se(asprintf(&cmd2, "ls -l /proc/"PID_FMT"/fd/%d", getpid(), fd2) > 0);
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(void) system(cmd2);
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assert_se(readlink_malloc(cmd2 + 6, &ans2) >= 0);
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log_debug("link2: %s", ans2);
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assert_se(endswith(ans2, " (deleted)"));
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pattern = strjoina(p, "/tmpfiles-test");
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assert_se(tempfn_random(pattern, NULL, &d) >= 0);
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fd = open_tmpfile_linkable(d, O_RDWR|O_CLOEXEC, &tmp);
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assert_se(fd >= 0);
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assert_se(write(fd, "foobar\n", 7) == 7);
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assert_se(touch(d) >= 0);
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assert_se(link_tmpfile(fd, tmp, d) == -EEXIST);
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assert_se(unlink(d) >= 0);
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assert_se(link_tmpfile(fd, tmp, d) >= 0);
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assert_se(read_one_line_file(d, &line) >= 0);
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assert_se(streq(line, "foobar"));
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assert_se(unlink(d) >= 0);
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return 0;
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}
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