Write to stderr if execve fails

This should be rare but should not happen silently, this way it will
show in the parent process debug buffer.
This commit is contained in:
Maxime Coste 2021-01-22 17:15:59 +11:00
parent 841ec2e588
commit 74fc52b3de

View File

@ -105,7 +105,7 @@ template<typename Func>
pid_t spawn_shell(const char* shell, StringView cmdline,
ConstArrayView<String> params,
ConstArrayView<String> kak_env,
Func setup_child)
Func setup_child) noexcept
{
Vector<const char*> envptrs;
for (char** envp = environ; *envp; ++envp)
@ -128,6 +128,8 @@ pid_t spawn_shell(const char* shell, StringView cmdline,
setup_child();
execve(shell, (char* const*)execparams.data(), (char* const*)envptrs.data());
char buffer[1024];
write(STDERR_FILENO, format_to(buffer, "execve failed: {}\n", errno));
_exit(-1);
return -1;
}