Add extra argument to substitute_hook_functions and interpose_imports for use with unhooking.

I think we'll need to explicitly record trampoline locations to avoid
the possibility of stomping on someone else's stuff if the function was
re-patched...

Also, document substitute_hook_functions.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/test-interpose.c b/test/test-interpose.c
index ea28abb..28e9f3b 100644
--- a/test/test-interpose.c
+++ b/test/test-interpose.c
@@ -26,7 +26,7 @@ int main() {
 	};
 	pid_t (*gp)() = getpid_plus - 5;
 	printf("original pid: %d\n", (int) gp());
-	substitute_interpose_imports(handle, hooks, sizeof(hooks)/sizeof(*hooks), 0);
+	substitute_interpose_imports(handle, hooks, sizeof(hooks)/sizeof(*hooks), NULL, 0);
 	gp = getpid_plus - 5;
 	printf("new pid: %d\n", (int) gp());
 	printf("new gid: %d\n", (int) getgid());