feat: add pinentry module and paper key module

1 files changed, 93 insertions, 0 deletions

diff --git a/src/m_paper_key/extract.cpp b/src/m_paper_key/extract.cpp
new file mode 100644
index 0000000..388a6c7
--- /dev/null
+++ b/src/m_paper_key/extract.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2007, 2017 David Shaw <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "extract.h"
+
+#include <cstdio>
+
+#include "output.h"
+#include "packets.h"
+#include "parse.h"
+
+extern int verbose;
+
+int extract(FILE *input, const char *outname, enum data_type output_type) {
+  struct packet *packet;
+  int offset;
+  unsigned char fingerprint[20];
+  unsigned char version = 0;
+
+  packet = parse(input, 5, 0);
+  if (!packet) {
+    fprintf(stderr, "Unable to find secret key packet\n");
+    return 1;
+  }
+
+  offset = extract_secrets(packet);
+  if (offset == -1) return 1;
+
+  if (verbose > 1) fprintf(stderr, "Secret offset is %d\n", offset);
+
+  calculate_fingerprint(packet, offset, fingerprint);
+
+  if (verbose) {
+    fprintf(stderr, "Primary key fingerprint: ");
+    print_bytes(stderr, fingerprint, 20);
+    fprintf(stderr, "\n");
+  }
+
+  output_start(outname, output_type, fingerprint);
+  output_bytes(&version, 1);
+  output_bytes(packet->buf, 1);
+  output_bytes(fingerprint, 20);
+  output_length16(packet->len - offset);
+  output_bytes(&packet->buf[offset], packet->len - offset);
+
+  free_packet(packet);
+
+  while ((packet = parse(input, 7, 5))) {
+    offset = extract_secrets(packet);
+    if (offset == -1) return 1;
+
+    if (verbose > 1) fprintf(stderr, "Secret subkey offset is %d\n", offset);
+
+    calculate_fingerprint(packet, offset, fingerprint);
+
+    if (verbose) {
+      fprintf(stderr, "Subkey fingerprint: ");
+      print_bytes(stderr, fingerprint, 20);
+      fprintf(stderr, "\n");
+    }
+
+    output_bytes(packet->buf, 1);
+    output_bytes(fingerprint, 20);
+    output_length16(packet->len - offset);
+    output_bytes(&packet->buf[offset], packet->len - offset);
+
+    free_packet(packet);
+  }
+
+  output_finish();
+
+  if (input == stdin) {
+    /* Consume everything else on input */
+    while ((fgetc(input) != EOF));
+  }
+
+  return 0;
+}