help.c
1.54 KB
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2001 Free Software Foundation, Inc.
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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "mail.h"
/*
* hel[p] [command]
* ? [command]
*/
int
mail_help (int argc, char **argv)
{
if (argc < 2)
{
int i = 0;
FILE *out = ofile;
if ((util_find_env("crt"))->set)
out = popen (getenv("PAGER"), "w");
while (mail_command_table[i].synopsis != 0)
fprintf (out, "%s\n", mail_command_table[i++].synopsis);
if (out != ofile)
pclose (out);
return 0;
}
else
{
int status = 0, cmd = 0;
while (++cmd < argc)
{
struct mail_command_entry entry = util_find_entry (argv[cmd]);
if (entry.synopsis != NULL)
fprintf (ofile, "%s\n", entry.synopsis);
else
{
status = 1;
fprintf (ofile, "Unknown command: %s\n", argv[cmd]);
}
}
return status;
}
return 1;
}