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Merge "Fix unistd.exec_argv0_null for new kernels."

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Elliott Hughes 2022-04-01 21:59:56 +00:00 committed by Gerrit Code Review
commit 97ef479dfe
1 changed files with 12 additions and 2 deletions
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14
tests/unistd_test.cpp
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@ -1529,11 +1529,21 @@ TEST(UNISTD_TEST, execvp_libcore_test_55017) {
}
TEST(UNISTD_TEST, exec_argv0_null) {
// http://b/33276926
// http://b/33276926 and http://b/227498625.
//
// With old kernels, bionic will see the null pointer and use "<unknown>" but
// with new (5.18+) kernels, the kernel will already have substituted the
// empty string, so we don't make any assertion here about what (if anything)
// comes before the first ':'.
//
// If this ever causes trouble, we could change bionic to replace _either_ the
// null pointer or the empty string. We could also use the actual name from
// readlink() on /proc/self/exe if we ever had reason to disallow programs
// from trying to hide like this.
char* args[] = {nullptr};
char* envs[] = {nullptr};
ASSERT_EXIT(execve("/system/bin/run-as", args, envs), testing::ExitedWithCode(1),
"<unknown>: usage: run-as");
": usage: run-as");
}
TEST(UNISTD_TEST, fexecve_failure) {