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att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libcmd/rmdir.c
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 1992-2012 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                  David Korn <[email protected]>                   *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * Glenn Fowler

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 * AT&T Research

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 *

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 * rmdir

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 */

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static const char usage[] =

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"[-?\n@(#)$Id: rmdir (AT&T Research) 2006-08-24 $\n]"

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USAGE_LICENSE

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"[+NAME?rmdir - remove empty directories]"

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"[+DESCRIPTION?\brmdir\b deletes each given directory.  The directory "

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	"must be empty; containing no entries other than \b.\b or \b..\b.  "

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	"If a directory and a subdirectory of that directory are specified "

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	"as operands, the subdirectory must be specified before the parent "

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	"so that the parent directory will be empty when \brmdir\b attempts "

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	"to remove it.]"

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"[e:ignore-fail-on-non-empty?Ignore each non-empty directory failure.]"

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"[p:parents?Remove each explicit \adirectory\a argument directory that "

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	"becomes empty after its child directories are removed.]"

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"[s:suppress?Suppress the message printed on the standard error when "

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	"\b-p\b is in effect.]"

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"\n"

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"\ndirectory ...\n"

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"\n"

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"[+EXIT STATUS?]{"

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        "[+0?All directories deleted successfully.]"

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        "[+>0?One or more directories could not be deleted.]"

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"}"

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"[+SEE ALSO?\bmkdir\b(1), \brm\b(1), \brmdir\b(2), \bunlink\b(2)]"

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;

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#include <cmd.h>

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int

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b_rmdir(int argc, char** argv, Shbltin_t* context)

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{

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	register char*	dir;

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	register char*	end;

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	register int	n;

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	int		eflag = 0;

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	int		pflag = 0;

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	int		sflag = 0;

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	cmdinit(argc, argv, context, ERROR_CATALOG, 0);

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	for (;;)

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	{

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		switch (optget(argv, usage))

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		{

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		case 'e':

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			eflag = 1;

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			continue;

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		case 'p':

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			pflag = 1;

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			continue;

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		case 's':

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			sflag = 1;

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			continue;

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		case ':':

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			error(2, "%s", opt_info.arg);

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			break;

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		case '?':

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			error(ERROR_usage(2), "%s", opt_info.arg);

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			break;

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		}

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		break;

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	}

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	argv += opt_info.index;

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	if (error_info.errors || !*argv)

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		error(ERROR_usage(2), "%s", optusage(NiL));

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	if (!pflag)

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		sflag = 0;

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	while (dir = *argv++)

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	{

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		end = dir;

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		if (pflag) end += strlen(dir);

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		n = 0;

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		for (;;)

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		{

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			if (rmdir(dir) < 0)

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			{

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				if (!eflag || errno != EEXIST

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#ifdef ENOTEMPTY

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				    && errno != ENOTEMPTY

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#endif

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				    )

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				{

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					if (sflag)

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						error_info.errors++;

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					else

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						error(ERROR_system(0), "%s: cannot remove", dir);

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				}

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				break;

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			}

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			if (n) *end = '/';

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			else n = 1;

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			do if (end <= dir) goto next; while (*--end != '/');

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			do if (end <= dir) goto next; while (*(end - 1) == '/' && end--);

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			*end = 0;

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		}

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	next:	;

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	}

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	return(error_info.errors != 0);

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}

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