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-rw-r--r--g10/dearmor.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/g10/dearmor.c b/g10/dearmor.c
new file mode 100644
index 0000000..92239cc
--- /dev/null
+++ b/g10/dearmor.c
@@ -0,0 +1,131 @@
+/* dearmor.c - Armor utility
+ * Copyright (C) 1998, 1999, 2000, 2001 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 3 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, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "gpg.h"
+#include "../common/status.h"
+#include "../common/iobuf.h"
+#include "../common/util.h"
+#include "filter.h"
+#include "packet.h"
+#include "options.h"
+#include "main.h"
+#include "../common/i18n.h"
+
+/****************
+ * Take an armor file and write it out without armor
+ */
+int
+dearmor_file( const char *fname )
+{
+ armor_filter_context_t *afx;
+ IOBUF inp = NULL, out = NULL;
+ int rc = 0;
+ int c;
+
+ afx = new_armor_context ();
+
+ /* prepare iobufs */
+ inp = iobuf_open(fname);
+ if (inp && is_secured_file (iobuf_get_fd (inp)))
+ {
+ iobuf_close (inp);
+ inp = NULL;
+ gpg_err_set_errno (EPERM);
+ }
+ if (!inp) {
+ rc = gpg_error_from_syserror ();
+ log_error(_("can't open '%s': %s\n"), fname? fname: "[stdin]",
+ strerror(errno) );
+ goto leave;
+ }
+
+ push_armor_filter ( afx, inp );
+
+ if( (rc = open_outfile (-1, fname, 0, 0, &out)) )
+ goto leave;
+
+ while( (c = iobuf_get(inp)) != -1 )
+ iobuf_put( out, c );
+
+ leave:
+ if( rc )
+ iobuf_cancel(out);
+ else
+ iobuf_close(out);
+ iobuf_close(inp);
+ release_armor_context (afx);
+ return rc;
+}
+
+
+/****************
+ * Take file and write it out with armor
+ */
+int
+enarmor_file( const char *fname )
+{
+ armor_filter_context_t *afx;
+ IOBUF inp = NULL, out = NULL;
+ int rc = 0;
+ int c;
+
+ afx = new_armor_context ();
+
+ /* prepare iobufs */
+ inp = iobuf_open(fname);
+ if (inp && is_secured_file (iobuf_get_fd (inp)))
+ {
+ iobuf_close (inp);
+ inp = NULL;
+ gpg_err_set_errno (EPERM);
+ }
+ if (!inp) {
+ rc = gpg_error_from_syserror ();
+ log_error(_("can't open '%s': %s\n"), fname? fname: "[stdin]",
+ strerror(errno) );
+ goto leave;
+ }
+
+
+ if( (rc = open_outfile (-1, fname, 1, 0, &out )) )
+ goto leave;
+
+ afx->what = 4;
+ afx->hdrlines = "Comment: Use \"gpg --dearmor\" for unpacking\n";
+ push_armor_filter ( afx, out );
+
+ while( (c = iobuf_get(inp)) != -1 )
+ iobuf_put( out, c );
+
+
+ leave:
+ if( rc )
+ iobuf_cancel(out);
+ else
+ iobuf_close(out);
+ iobuf_close(inp);
+ release_armor_context (afx);
+ return rc;
+}