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log rc when injection fails #9

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Merged
Androclast merged 1 commit into from
May 11, 2026
Merged

log rc when injection fails #9

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20 changes: 15 additions & 5 deletions Hauyne.Bootstrap/bootstrap.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the
// Mozilla Public License, v. 2.0.

const std = @import("std");
const t = @import("types/common.zig");
const win = @import("types/windows.zig");
const lin = @import("types/linux.zig");
Expand All @@ -15,6 +16,15 @@ var hostfxr_get_delegate: ?t.HostfxrGetDelegateFn = null;
var hostfxr_close: ?t.HostfxrCloseFn = null;
var g_hModule: ?win.HMODULE = null;

fn logRc(log_path: []const u8, comptime msg: []const u8, rc: i32) void {
var buf: [128]u8 = undefined;
const s = std.fmt.bufPrint(&buf, msg ++ " (rc=0x{x:0>8})", .{@as(u32, @bitCast(rc))}) catch {
p.appendLog(log_path, msg);
return;
};
p.appendLog(log_path, s);
}

fn castFnPtr(comptime T: type, ptr: ?*anyopaque) ?T {
return if (ptr) |q| @ptrCast(@alignCast(q)) else null;
}
Expand Down Expand Up @@ -111,29 +121,29 @@ fn loadPayload(param: ?*anyopaque) void {
var ctx: t.HostfxrHandle = null;
var rc = hostfxr_init.?(config_path, null, &ctx);
if (ctx == null) {
p.appendLog(log_path_u8, "hauyne: ctx is null");
logRc(log_path_u8, "hauyne: hostfxr_init failed, ctx is null", rc);
return;
}
defer _ = hostfxr_close.?(ctx);

var load_asm_ptr: ?*anyopaque = null;
rc = hostfxr_get_delegate.?(ctx, t.HDT_LOAD_ASSEMBLY, &load_asm_ptr);
if (rc != 0 or load_asm_ptr == null) {
p.appendLog(log_path_u8, "hauyne: get_delegate(load_assembly) failed");
logRc(log_path_u8, "hauyne: get_delegate(load_assembly) failed", rc);
return;
}
const load_asm: t.LoadAssemblyFn = @ptrCast(@alignCast(load_asm_ptr.?));

rc = load_asm(assembly_path.?, null, null);
if (rc != 0) {
p.appendLog(log_path_u8, "hauyne: load_asm failed");
logRc(log_path_u8, "hauyne: load_asm failed", rc);
return;
}

var get_fn_ptr: ?*anyopaque = null;
rc = hostfxr_get_delegate.?(ctx, t.HDT_GET_FUNCTION_POINTER, &get_fn_ptr);
if (rc != 0 or get_fn_ptr == null) {
p.appendLog(log_path_u8, "hauyne: get_delegate(get_function_pointer) failed");
logRc(log_path_u8, "hauyne: get_delegate(get_function_pointer) failed", rc);
return;
}
const get_fn: t.GetFunctionPointerFn = @ptrCast(@alignCast(get_fn_ptr.?));
Expand All @@ -148,7 +158,7 @@ fn loadPayload(param: ?*anyopaque) void {
&entry_ptr,
);
if (rc != 0 or entry_ptr == null) {
p.appendLog(log_path_u8, "hauyne: get_function_pointer(Initialize) failed");
logRc(log_path_u8, "hauyne: get_function_pointer(Initialize) failed", rc);
return;
}

Expand Down
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