1 files changed, 136 insertions, 0 deletions
diff --git a/src/sendmail.cc b/src/sendmail.cc
new file mode 100644
index 0000000..9b649bb
--- /dev/null
+++ b/src/sendmail.cc
@@ -0,0 +1,136 @@
+// nullmailer -- a simple relay-only MTA
+// Copyright (C) 1999,2000  Bruce Guenter <bruceg@em.ca>
+//
+// 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+// You can contact me at <bruceg@em.ca>.  There is also a mailing list
+// available to discuss this package.  To subscribe, send an email to
+// <nullmailer-subscribe@lists.em.ca>.
+
+#include <config.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "fdbuf/fdbuf.h"
+#include "defines.h"
+#include "cli/cli.h"
+
+const char* cli_program = "sendmail";
+const char* cli_help_prefix = "Nullmailer sendmail emulator\n";
+const char* cli_help_suffix = 0;
+const char* cli_args_usage = "[recipients] <message";
+const int cli_args_min = 0;
+const int cli_args_max = -1;
+
+static int o_dummyi;
+static const char* o_dummys;
+static const char* o_sender = 0;
+static char* o_from;
+static int use_header = false;
+
+cli_option cli_options[] = {
+  { 'B', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'b', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'C', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'd', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'F', 0, cli_option::string, 0, &o_sender,
+    "Set the full name of the sender", 0 },
+  { 'f', 0, cli_option::string, 0, &o_from,
+    "Set the envelope sender address", 0 },
+  { 'h', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'i', 0, cli_option::flag, 0, &o_dummyi, "Ignored", 0 },
+  { 'L', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'N', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'n', 0, cli_option::flag, 0, &o_dummyi, "Ignored", 0 },
+  { 'O', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'o', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'p', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'q', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'R', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'r', 0, cli_option::string, 0, &o_from,
+    "An alternate and obsolete form of the -f flag", 0 },
+  { 't', 0, cli_option::flag, 1, &use_header,
+    "Read message for recipients", 0 },
+  { 'U', 0, cli_option::flag, 0, &o_dummyi, "Ignored", 0 },
+  { 'V', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  { 'v', 0, cli_option::flag, 0, &o_dummyi, "Ignored", 0 },
+  { 'X', 0, cli_option::string, 0, &o_dummys, "Ignored", 0 },
+  {0}
+};
+
+#ifdef HAVE_SETENV
+// Sometimes we need an explicit declaration.
+extern "C" int setenv(const char*, const char*, int);
+#else
+// This is not really a full emulation of setenv, but close enough
+int setenv(const char* var, const char* val, int overwrite)
+{
+  size_t varlen = strlen(var);
+  size_t vallen = strlen(val);
+  char str[varlen+vallen+2];
+  memcpy(str, var, varlen);
+  str[varlen] = '=';
+  memcpy(str+varlen+1, val, vallen);
+  str[varlen+vallen+1] = 0;
+  return putenv(str);
+}
+#endif
+
+bool setenvelope(char* str)
+{
+  char* at = strchr(str, '@');
+  if(at) {
+    *at = 0;
+    setenv("NULLMAILER_HOST", at+1, 1);
+  }
+  setenv("NULLMAILER_USER", str, 1);
+  return true;
+}
+
+int parseargs()
+{
+  if(o_sender)
+    setenv("NULLMAILER_NAME", o_sender, 1);
+  if(o_from)
+    if(!setenvelope(o_from))
+      return -1;
+  return 0;
+}
+
+int cli_main(int argc, char* argv[])
+{
+  if(chdir(BIN_DIR) == -1) {
+    ferr << "sendmail: Could not change directory to " << BIN_DIR << endl;
+    return 1;
+  }
+  
+  if(parseargs() < 0)
+    return 1;
+
+  char* newargv[argc+3];
+  newargv[0] = "nullmailer-inject";
+  int j = 1;
+  if(use_header)
+    newargv[j++] = "-b";
+  else
+    newargv[j++] = "-e";
+  for(int i = 0; i < argc; i++)
+    newargv[j++] = argv[i];
+  newargv[j] = 0;
+
+  execv(newargv[0], newargv);
+  ferr << "sendmail: Could not exec nullmailer-inject." << endl;
+  return 1;
+}