80 lines
2 KiB
C
80 lines
2 KiB
C
/* shell.c -- tilde utility functions that are normally provided by
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bash when readline is linked as part of the shell. */
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/* Copyright (C) 1998-2009 Free Software Foundation, Inc.
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This file is part of the GNU Tilde Library.
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The GNU Tilde Library is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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The GNU Tilde Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the GNU Tilde Library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if defined (HAVE_CONFIG_H)
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# include <config.h>
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#endif
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#if defined (HAVE_UNISTD_H)
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# ifdef _MINIX
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# include <sys/types.h>
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# endif
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# include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#if defined (HAVE_STDLIB_H)
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# include <stdlib.h>
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#else
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# include "ansi_stdlib.h"
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#endif /* HAVE_STDLIB_H */
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#if defined (HAVE_STRING_H)
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# include <string.h>
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#else
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# include <strings.h>
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#endif /* !HAVE_STRING_H */
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#include <pwd.h>
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#if !defined (HAVE_GETPW_DECLS)
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extern struct passwd *getpwuid ();
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#endif /* !HAVE_GETPW_DECLS */
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char *
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get_env_value (varname)
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char *varname;
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{
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return ((char *)getenv (varname));
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}
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/* If we're not using $HOME, assume that the passwd file information won't
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change while this shell instance is running. */
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char *
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get_home_dir ()
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{
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static char *home_dir = (char *)NULL;
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struct passwd *entry;
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if (home_dir)
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return (home_dir);
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#if defined (HAVE_GETPWUID)
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entry = getpwuid (getuid ());
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if (entry)
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home_dir = savestring (entry->pw_dir);
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#endif
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#if defined (HAVE_GETPWENT)
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endpwent (); /* some systems need this */
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#endif
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return (home_dir);
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}
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