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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/test/test-execve.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/test-execve.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/test/test-execve.c b/src/test/test-execve.c new file mode 100644 index 0000000..e7a9a51 --- /dev/null +++ b/src/test/test-execve.c @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "exec-util.h" +#include "fd-util.h" +#include "log.h" +#include "main-func.h" +#include "strv.h" +#include "tests.h" + +/* This program can be used to call programs through fexecve / execveat(…, "", …, AT_EMPTY_PATH), + * when compiled with -Dfexecve=true, and the fallback paths, when -Dfexecve=false. + * + * Example: + * $ strace -e execveat build/test-execve /bin/grep Name /proc/self/status + * execveat(3, "", ["/bin/grep", "Name", "/proc/self/status"], NULL, AT_EMPTY_PATH) = 0 + * Name: 3 + * + * FIXME: use the new kernel api to set COMM properly when the kernel makes that available. + * C.f. ceedbf8185fc7593366679f02d31da63af8c4bd1. + */ + +static int run(int argc, char **argv) { + _cleanup_close_ int fd = -EBADF; + char **args = strv_skip(argv, 1); + int r; + + test_setup_logging(LOG_DEBUG); + + args = !strv_isempty(args) ? args : STRV_MAKE("/bin/true"); + + fd = open(args[0], O_RDONLY | O_CLOEXEC); + if (fd < 0) + return log_error_errno(errno, "open(%s) failed: %m", args[0]); + + r = fexecve_or_execve(fd, args[0], args, NULL); + assert_se(r < 0); + return log_error_errno(r, "fexecve_or_execve(%s) failed: %m", args[0]); +} + +DEFINE_MAIN_FUNCTION(run); |