1 files changed, 113 insertions, 0 deletions
diff --git a/g10/comment.c b/g10/comment.c
new file mode 100644
index 000000000..193087107
--- /dev/null
+++ b/g10/comment.c
@@ -0,0 +1,113 @@
+/* comment.c - write comment stuff
+ *	Copyright (C) 1998, 2003 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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.
+ *
+ * GnuPG 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 <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "options.h"
+#include "packet.h"
+#include "errors.h"
+#include "iobuf.h"
+#include "memory.h"
+#include "util.h"
+#include "main.h"
+#include "keydb.h"
+
+
+
+int
+write_comment( iobuf_t out, const char *s )
+{
+    PACKET pkt;
+    size_t n = strlen(s);
+    int rc=0;
+
+    pkt.pkttype = PKT_COMMENT;
+    if( *s != '#' ) {
+       pkt.pkt.comment = xmalloc ( sizeof *pkt.pkt.comment + n );
+       pkt.pkt.comment->len = n+1;
+       *pkt.pkt.comment->data = '#';
+       strcpy(pkt.pkt.comment->data+1, s);
+    }
+    else {
+       pkt.pkt.comment = xmalloc ( sizeof *pkt.pkt.comment + n - 1 );
+       pkt.pkt.comment->len = n;
+       strcpy(pkt.pkt.comment->data, s);
+    }
+    if( (rc = build_packet( out, &pkt )) )
+	log_error("build_packet(comment) failed: %s\n", gpg_strerror (rc) );
+    free_packet( &pkt );
+    return rc;
+}
+
+
+KBNODE
+make_comment_node_from_buffer (const char *s, size_t n)
+{
+    PACKET *pkt;
+
+    pkt = gcry_xcalloc( 1, sizeof *pkt );
+    pkt->pkttype = PKT_COMMENT;
+    pkt->pkt.comment = gcry_xmalloc( sizeof *pkt->pkt.comment + n - 1 );
+    pkt->pkt.comment->len = n;
+    strcpy(pkt->pkt.comment->data, s);
+    return new_kbnode( pkt );
+}
+
+KBNODE
+make_comment_node( const char *s )
+{
+  return make_comment_node_from_buffer (s, strlen (s));
+}
+
+
+KBNODE
+make_mpi_comment_node( const char *s, gcry_mpi_t a )
+{
+    PACKET *pkt;
+    byte *buf, *pp;
+    size_t n1, nb1;
+    size_t n = strlen(s);
+
+    nb1 = mpi_get_nbits( a );
+    if (gcry_mpi_print (GCRYMPI_FMT_PGP, NULL, 0, &n1, a))
+      BUG ();
+    /* fixme: allocate it on the stack */
+    buf = xmalloc (n1);
+    if (gcry_mpi_print (GCRYMPI_FMT_PGP, buf, n1, &n1, a))
+      BUG ();
+
+    pkt = xcalloc (1, sizeof *pkt );
+    pkt->pkttype = PKT_COMMENT;
+    pkt->pkt.comment = xmalloc ( sizeof *pkt->pkt.comment + n + 2 + n1 );
+    pkt->pkt.comment->len = n+1+2+n1;
+    pp = pkt->pkt.comment->data;
+    memcpy(pp, s, n+1);
+    memcpy(pp+n+1, buf, n1 );
+    xfree (buf);
+    return new_kbnode( pkt );
+}
+
+