chore(prog): align BPFProg API - set_type, set_expected_attach_type

prog.go

@@ -155,14 +155,32 @@ func (p *BPFProg) SetAttachTarget(attachProgFD int, attachFuncName string) error
 	return nil
 }
 
-// TODO: fix API to return error
+// Deprecated: use BPFProg.SetExpectedProgramType() instead.
 func (p *BPFProg) SetProgramType(progType BPFProgType) {
-	C.bpf_program__set_type(p.prog, C.enum_bpf_prog_type(int(progType)))
+	C.bpf_program__set_type(p.prog, C.enum_bpf_prog_type(C.int(progType)))
 }
 
-// TODO: fix API to return error
+func (p *BPFProg) SetExpectedProgramType(progType BPFProgType) error {
+	retC := C.bpf_program__set_type(p.prog, C.enum_bpf_prog_type(C.int(progType)))
+	if retC < 0 {
+		return fmt.Errorf("failed to set prog_type %s for program %s: %w", progType.String(), p.Name(), syscall.Errno(-retC))
+	}
+
+	return nil
+}
+
+// Deprecated: use BPFProg.SetExpectedAttachType() instead.
 func (p *BPFProg) SetAttachType(attachType BPFAttachType) {
-	C.bpf_program__set_expected_attach_type(p.prog, C.enum_bpf_attach_type(int(attachType)))
+	C.bpf_program__set_expected_attach_type(p.prog, C.enum_bpf_attach_type(C.int(attachType)))
+}
+
+func (p *BPFProg) SetExpectedAttachType(attachType BPFAttachType) error {
+	retC := C.bpf_program__set_expected_attach_type(p.prog, C.enum_bpf_attach_type(C.int(attachType)))
+	if retC < 0 {
+		return fmt.Errorf("failed to set attach_type %s for program %s: %w", attachType.String(), p.Name(), syscall.Errno(-retC))
+	}
+
+	return nil
 }
 
 // getCgroupDirFD returns a file descriptor for a given cgroup2 directory path