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/* logname - print login name of current user */
/*
Copyright (C) 1999-2009 Free Software Foundation, Inc.
This file is part of GNU Bash.
Bash 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.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include <stdio.h>
#include <errno.h>
#include "builtins.h"
#include "shell.h"
#include "common.h"
#if !defined (errno)
extern int errno;
#endif
logname_builtin (list)
WORD_LIST *list;
{
char *np;
if (no_options (list))
return (EX_USAGE);
np = getlogin ();
if (np == 0)
{
builtin_error ("cannot find username: %s", strerror (errno));
return (EXECUTION_FAILURE);
}
printf ("%s\n", np);
return (EXECUTION_SUCCESS);
}
char *logname_doc[] = {
"Display user login name.",
"",
"Write the current user's login name to the standard output",
"and exit. logname ignores the LOGNAME and USER variables.",
"logname ignores any non-option arguments.",
(char *)NULL
};
struct builtin logname_struct = {
"logname",
logname_builtin,
BUILTIN_ENABLED,
logname_doc,
"logname",
0
};
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