summaryrefslogtreecommitdiffstats
path: root/tools/send-mail.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--tools/send-mail.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/tools/send-mail.c b/tools/send-mail.c
new file mode 100644
index 0000000..6492c43
--- /dev/null
+++ b/tools/send-mail.c
@@ -0,0 +1,140 @@
+/* send-mail.c - Invoke sendmail or other delivery tool.
+ * Copyright (C) 2016 g10 Code GmbH
+ * Copyright (C) 2016 Bundesamt für Sicherheit in der Informationstechnik
+ *
+ * This file is part of GnuPG.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This file 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 "../common/util.h"
+#include "../common/exectool.h"
+#include "../common/sysutils.h"
+#include "send-mail.h"
+
+
+static gpg_error_t
+run_sendmail (estream_t data)
+{
+ gpg_error_t err;
+ const char pgmname[] = NAME_OF_SENDMAIL;
+ const char *argv[3];
+
+ argv[0] = "-oi";
+ argv[1] = "-t";
+ argv[2] = NULL;
+
+ err = gnupg_exec_tool_stream (pgmname, argv, data, NULL, NULL, NULL, NULL);
+ if (err)
+ log_error ("running '%s' failed: %s\n", pgmname, gpg_strerror (err));
+ return err;
+}
+
+
+/* Send the data in FP as mail. */
+gpg_error_t
+send_mail (estream_t fp)
+{
+ return run_sendmail (fp);
+}
+
+
+/* Convenience function to write a mail to a named file. */
+gpg_error_t
+send_mail_to_file (estream_t fp, const char *fname)
+{
+ gpg_error_t err;
+ estream_t outfp = NULL;
+ char *buffer = NULL;
+ size_t buffersize = 32 * 1024;
+ size_t nbytes, nwritten;
+
+ if (!fname)
+ fname = "-";
+
+ buffer = xtrymalloc (buffersize);
+ if (!buffer)
+ return gpg_error_from_syserror ();
+
+
+ if (!strcmp (fname,"-"))
+ {
+ outfp = es_stdout;
+ es_set_binary (es_stdout);
+ }
+ else
+ {
+ outfp = es_fopen (fname, "wb");
+ if (!outfp)
+ {
+ err = gpg_error_from_syserror ();
+ log_error ("error creating '%s': %s\n", fname, gpg_strerror (err));
+ goto leave;
+ }
+ }
+
+ for (;;)
+ {
+ if (es_read (fp, buffer, sizeof buffer, &nbytes))
+ {
+ err = gpg_error_from_syserror ();
+ log_error ("error reading '%s': %s\n",
+ es_fname_get (fp), gpg_strerror (err));
+ goto leave;
+ }
+
+ if (!nbytes)
+ {
+ err = 0;
+ break; /* Ready. */
+ }
+
+ if (es_write (outfp, buffer, nbytes, &nwritten))
+ {
+ err = gpg_error_from_syserror ();
+ log_error ("error writing '%s': %s\n", fname, gpg_strerror (err));
+ goto leave;
+ }
+ else if (nwritten != nbytes)
+ {
+ err = gpg_error (GPG_ERR_EIO);
+ log_error ("error writing '%s': %s\n", fname, "short write");
+ goto leave;
+ }
+ }
+
+
+ leave:
+ if (err)
+ {
+ if (outfp && outfp != es_stdout)
+ {
+ es_fclose (outfp);
+ gnupg_remove (fname);
+ }
+ }
+ else if (outfp && outfp != es_stdout && es_fclose (outfp))
+ {
+ err = gpg_error_from_syserror ();
+ log_error ("error closing '%s': %s\n", fname, gpg_strerror (err));
+ }
+
+ xfree (buffer);
+ return err;
+}