--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/f-demime/finish.c	Sat May 06 06:14:03 2023 +0000
@@ -0,0 +1,74 @@
+/*
+ * This module implements the handling at the end of entity body input.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include "defs.h"
+
+extern enum msg_state msg_state;
+extern char cont_type_buf[HDR_BUF_SIZE], cont_te_buf[HDR_BUF_SIZE];
+extern int got_cont_type, got_cont_te;
+extern int b64_err_flag, b64_nonempty, qpdec_err_flag;
+
+static void
+check_b64_err()
+{
+	if (b64_err_flag)
+		puts("X-Fdemime-Error: bad base64 data");
+}
+
+static void
+check_qpdec_err()
+{
+	if (qpdec_err_flag)
+		puts("X-Fdemime-Error: bad quoted-printable data");
+}
+
+void
+finish_msg_body()
+{
+	switch (msg_state) {
+	case MSG_STATE_HEADER:
+		if (got_cont_type)
+			fputs(cont_type_buf, stdout);
+		if (got_cont_te)
+			fputs(cont_te_buf, stdout);
+		return;
+	case MSG_STATE_PTEXT_B64:
+		base64_dec_finish();
+		check_b64_err();
+		ptext_conv_finish();
+		ptext_mark_transform("decode-base64");
+		putchar('\n');
+		ptext_emit_output();
+		return;
+	case MSG_STATE_PTEXT_QP:
+		check_qpdec_err();
+		ptext_conv_finish();
+		ptext_mark_transform("decode-qp");
+		putchar('\n');
+		ptext_emit_output();
+		return;
+	case MSG_STATE_BLOB_B64:
+		base64_dec_finish();
+		check_b64_err();
+		putchar('\n');
+		attach_out_finish();
+		if (b64_nonempty)
+			puts("[base64 blob stripped]");
+		putchar('\n');
+		return;
+	case MSG_STATE_B64_TO_QP:
+		base64_dec_finish();
+		check_b64_err();
+		b2q_conv_finish();
+		puts("X-Fdemime-Transform: base64-to-qp");
+		puts("Content-Transfer-Encoding: quoted-printable");
+		putchar('\n');
+		b2q_emit_output();
+		return;
+	}
+}