A framework for send utility.

+/* GNU Mailutils -- a suite of utilities for electronic mail
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   GNU Mailutils 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, or (at your option)
+   any later version.
+
+   GNU Mailutils 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 GNU Mailutils; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* MH send command */
+
+#include <mh.h>
+
+const char *argp_program_version = "send (" PACKAGE_STRING ")";
+static char doc[] = N_("GNU MH send\v"
+"Options marked with `*' are not yet implemented.\n"
+"Use -help to obtain the list of traditional MH options.");
+static char args_doc[] = N_("file [file...]");
+
+#define ARG_ALIAS            257
+#define ARG_DRAFT            258
+#define ARG_DRAFTFOLDER      259
+#define ARG_DRAFTMESSAGE     260
+#define ARG_NODRAFTFOLDER    261
+#define ARG_FILTER           262
+#define ARG_NOFILTER         263
+#define ARG_FORMAT           264
+#define ARG_NOFORMAT         265
+#define ARG_FORWARD          266
+#define ARG_NOFORWARD        267
+#define ARG_MIME             268
+#define ARG_NOMIME           269
+#define ARG_MSGID            270
+#define ARG_NOMSGID          271
+#define ARG_PUSH             272
+#define ARG_NOPUSH           273
+#define ARG_SPLIT            274
+#define ARG_VERBOSE          275
+#define ARG_NOVERBOSE        276
+#define ARG_WATCH            277
+#define ARG_NOWATCH          278
+#define ARG_WIDTH            279
+
+/* GNU options */
+static struct argp_option options[] = {
+  {"alias",         ARG_ALIAS,         N_("FILE"), 0,
+   N_("* Specify additional alias file") },
+  {"draft",         ARG_DRAFT,         NULL, 0,
+   N_("* Use prepared draft") },
+  {"draftfolder",   ARG_DRAFTFOLDER,   N_("FOLDER"), 0,
+   N_("* Specify the folder for message drafts") },
+  {"draftmessage",  ARG_DRAFTMESSAGE,  N_("MESSAGE"), 0,
+   N_("* Invoke the draftmessage facility") },
+  {"nodraftfolder", ARG_NODRAFTFOLDER, NULL, 0,
+   N_("* Undo the effect of the last --draftfolder option") },
+  {"filter",        ARG_FILTER,        N_("FILE"), 0,
+  N_("* Set the filter program to preprocess the body of the message") },
+  {"nofilter",      ARG_NOFILTER,      NULL, 0,
+   N_("* Undo the effect of the last --filter option") },
+  {"format",        ARG_FORMAT,        N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* Reformat To: and Cc: addresses") },
+  {"noformat",      ARG_NOFORMAT,      NULL, OPTION_HIDDEN, "" },
+  {"forward",       ARG_FORWARD,       N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* In case of failure forward the draft along with the failure notice to the sender.") },
+  {"noforward",     ARG_NOFORWARD,     NULL, OPTION_HIDDEN, "" },
+  {"mime",          ARG_MIME,          N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* Use MIME encapsulation") },
+  {"nomime",        ARG_NOMIME,        NULL, OPTION_HIDDEN, "" },
+  {"msgid",         ARG_MSGID,         N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* Add Message-ID: field") },
+  {"nomsgid",       ARG_NOMSGID,       NULL, OPTION_HIDDEN, ""},
+  {"push",          ARG_PUSH,          N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* Run in the backround.") },
+  {"nopush",        ARG_NOPUSH,        NULL, OPTION_HIDDEN, "" },
+  {"split",         ARG_SPLIT,         N_("SECONDS"), 0,
+   N_("* Split the draft into several partial messages and send them with SECONDS interval") },
+  {"verbose",       ARG_VERBOSE,       N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* Print the transcript of interactions with the transport system") },
+  {"noverbose",     ARG_NOVERBOSE,     NULL, OPTION_HIDDEN, "" },
+  {"watch",         ARG_WATCH,         N_("BOOL"), OPTION_ARG_OPTIONAL,
+   N_("* Monitor the delivery of mail") },
+  {"nowatch",       ARG_NOWATCH,       NULL, OPTION_HIDDEN, "" },
+  {"width",         ARG_WIDTH,         N_("NUMBER"), 0,
+   N_("* Make header fields no longer than NUMBER columns") },
+  { 0 }
+};
+
+/* Traditional MH options */
+struct mh_option mh_option[] = {
+  {"alias",         1, 0, "aliasfile" },
+  {"draft",         5, 0, NULL },
+  {"draftfolder",   6, 0, "folder" },
+  {"draftmessage",  6, 0, "message"},
+  {"nodraftfolder", 3, 0, NULL },
+  {"filter",        2, 0, "filterfile"},
+  {"nofilter",      3, 0, NULL },
+  {"format",        4, MH_OPT_BOOL, NULL},
+  {"forward",       4, MH_OPT_BOOL, NULL},
+  {"mime",          2, MH_OPT_BOOL, NULL},
+  {"msgid",         2, MH_OPT_BOOL, NULL},
+  {"push",          1, MH_OPT_BOOL, NULL},
+  {"split",         1, 0, "seconds"},
+  {"verbose",       1, MH_OPT_BOOL, NULL},
+  {"watch",         2, MH_OPT_BOOL, NULL},
+  {"width",         2, 0, NULL },
+  { 0 }
+};
+
+static int reformat_recipients;  /* --format option */
+static int forward_notice;       /* Forward the failure notice to the sender,
+				    --forward flag */
+static int mime_encaps;          /* Use MIME encapsulation */
+static int append_msgid;         /* Append Message-ID: header */
+static int background;           /* Operate in the background */
+
+static int split_message;            /* Split the message */
+static unsigned long split_interval; /* Interval in seconds between sending two
+					successive partial messages */
+
+static int verbose;              /* Produce verbose diagnostics */
+static int watch;                /* Watch the delivery process */
+static unsigned width = 76;      /* Maximum width of header fields */
+
+static int
+opt_handler (int key, char *arg, void *unused)
+{
+  char *p;
+  
+  switch (key)
+    {
+    case ARG_ALIAS:
+    case ARG_DRAFT:      
+    case ARG_DRAFTFOLDER:
+    case ARG_DRAFTMESSAGE:
+    case ARG_NODRAFTFOLDER:
+    case ARG_FILTER:
+    case ARG_NOFILTER:
+      return 1;
+      
+    case ARG_FORMAT:
+      reformat_recipients = is_true(arg);
+      break;
+      
+    case ARG_NOFORMAT:
+      reformat_recipients = 0;
+      break;
+      
+    case ARG_FORWARD:
+      forward_notice = is_true(arg);
+      break;
+      
+    case ARG_NOFORWARD:
+      forward_notice = 0;
+      break;
+      
+    case ARG_MIME:
+      mime_encaps = is_true(arg);
+      break;
+      
+    case ARG_NOMIME:
+      mime_encaps = 0;
+      break;
+      
+    case ARG_MSGID:
+      append_msgid = is_true(arg);
+      break;
+      
+    case ARG_NOMSGID:
+      append_msgid = 0;
+      break;
+      
+    case ARG_PUSH:
+      background = is_true(arg);
+      break;
+      
+    case ARG_NOPUSH:
+      background = 0;
+      break;
+      
+    case ARG_SPLIT:
+      split_message = 1;
+      split_interval = strtoul(arg, &p, 10);
+      if (*p)
+	{
+	  mh_error (_("Invalid number"));
+	  exit (1);
+	}
+      break;
+      
+    case ARG_VERBOSE:
+      verbose = is_true(arg);
+      break;
+      
+    case ARG_NOVERBOSE:
+      verbose = 0;
+      break;
+      
+    case ARG_WATCH:
+      watch = is_true(arg);
+      break;
+      
+    case ARG_NOWATCH:
+      watch = 0;
+      break;
+      
+    case ARG_WIDTH:
+      width = strtoul(arg, &p, 10);
+      if (*p)
+	{
+	  mh_error (_("Invalid number"));
+	  exit (1);
+	}
+      break;
+      
+    default:
+      return 1;
+    }
+  return 0;
+}
+      
+int
+main (int argc, char **argv)
+{
+  int index;
+  
+  mu_init_nls ();
+  
+  mh_argp_parse (argc, argv, options, mh_option, args_doc, doc,
+		 opt_handler, NULL, &index);
+
+  return 0;
+}