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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/udev/test-udev-event.c | |
parent | Initial commit. (diff) | |
download | systemd-b750101eb236130cf056c675997decbac904cc49.tar.xz systemd-b750101eb236130cf056c675997decbac904cc49.zip |
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/udev/test-udev-event.c')
-rw-r--r-- | src/udev/test-udev-event.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/udev/test-udev-event.c b/src/udev/test-udev-event.c new file mode 100644 index 0000000..b6b2c91 --- /dev/null +++ b/src/udev/test-udev-event.c @@ -0,0 +1,113 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "path-util.h" +#include "signal-util.h" +#include "strv.h" +#include "tests.h" +#include "udev-event.h" +#include "util.h" + +#define BUF_SIZE 1024 + +static void test_event_spawn_core(bool with_pidfd, const char *cmd, char *result_buf, size_t buf_size) { + _cleanup_(sd_device_unrefp) sd_device *dev = NULL; + _cleanup_(udev_event_freep) UdevEvent *event = NULL; + + assert_se(setenv("SYSTEMD_PIDFD", yes_no(with_pidfd), 1) >= 0); + + assert_se(sd_device_new_from_syspath(&dev, "/sys/class/net/lo") >= 0); + assert_se(event = udev_event_new(dev, 0, NULL, LOG_DEBUG)); + assert_se(udev_event_spawn(event, 5 * USEC_PER_SEC, SIGKILL, false, cmd, result_buf, buf_size, NULL) == 0); + + assert_se(unsetenv("SYSTEMD_PIDFD") >= 0); +} + +static void test_event_spawn_cat(bool with_pidfd, size_t buf_size) { + _cleanup_strv_free_ char **lines = NULL; + _cleanup_free_ char *cmd = NULL; + char result_buf[BUF_SIZE]; + + log_debug("/* %s(%s) */", __func__, yes_no(with_pidfd)); + + assert_se(find_executable("cat", &cmd) >= 0); + assert_se(strextend_with_separator(&cmd, " ", "/sys/class/net/lo/uevent")); + + test_event_spawn_core(with_pidfd, cmd, result_buf, + buf_size >= BUF_SIZE ? BUF_SIZE : buf_size); + + assert_se(lines = strv_split_newlines(result_buf)); + strv_print(lines); + + if (buf_size >= BUF_SIZE) { + assert_se(strv_contains(lines, "INTERFACE=lo")); + assert_se(strv_contains(lines, "IFINDEX=1")); + } +} + +static void test_event_spawn_self(const char *self, const char *arg, bool with_pidfd) { + _cleanup_strv_free_ char **lines = NULL; + _cleanup_free_ char *cmd = NULL; + char result_buf[BUF_SIZE]; + + log_debug("/* %s(%s, %s) */", __func__, arg, yes_no(with_pidfd)); + + assert_se(cmd = strjoin(self, " ", arg)); + + test_event_spawn_core(with_pidfd, cmd, result_buf, BUF_SIZE); + + assert_se(lines = strv_split_newlines(result_buf)); + strv_print(lines); + + assert_se(strv_contains(lines, "aaa")); + assert_se(strv_contains(lines, "bbb")); +} + +static void test1(void) { + fprintf(stdout, "aaa\nbbb"); + fprintf(stderr, "ccc\nddd"); +} + +static void test2(void) { + char buf[16384]; + + fprintf(stdout, "aaa\nbbb"); + + memset(buf, 'a', sizeof(buf) - 1); + char_array_0(buf); + fputs(buf, stderr); +} + +int main(int argc, char *argv[]) { + _cleanup_free_ char *self = NULL; + + if (argc > 1) { + if (streq(argv[1], "test1")) + test1(); + else if (streq(argv[1], "test2")) + test2(); + else + assert_not_reached(); + + return 0; + } + + test_setup_logging(LOG_DEBUG); + + assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0); + + test_event_spawn_cat(true, SIZE_MAX); + test_event_spawn_cat(false, SIZE_MAX); + test_event_spawn_cat(true, 5); + test_event_spawn_cat(false, 5); + + assert_se(path_make_absolute_cwd(argv[0], &self) >= 0); + path_simplify(self); + + test_event_spawn_self(self, "test1", true); + test_event_spawn_self(self, "test1", false); + + test_event_spawn_self(self, "test2", true); + test_event_spawn_self(self, "test2", false); + + return 0; +} |