WebSVN – HelenOS – Diff – /branches/tracing/uspace/app/bdsh/cmds/modules/rm/rm.c


/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the original program's authors nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <getopt.h>
#include <mem.h>
#include <string.h>
 
#include "config.h"
#include "errors.h"
#include "util.h"
#include "entry.h"
#include "rm.h"
#include "cmds.h"
 
static char *cmdname = "rm";
#define RM_VERSION "0.0.1"
 
static rm_job_t rm;
 
static struct option const long_options[] = {
    { "help", no_argument, 0, 'h' },
    { "version", no_argument, 0, 'v' },
    { "recursive", no_argument, 0, 'r' },
    { "force", no_argument, 0, 'f' },
    { "safe", no_argument, 0, 's' },
    { 0, 0, 0, 0 }
};
 
static unsigned int rm_start(rm_job_t *rm)
{
    rm->recursive = 0;
    rm->force = 0;
    rm->safe = 0;
 
    /* Make sure we can allocate enough memory to store
     * what is needed in the job structure */
    if (NULL == (rm->nwd = (char *) malloc(PATH_MAX)))
        return 0;
    memset(rm->nwd, 0, sizeof(rm->nwd));
 
    if (NULL == (rm->owd = (char *) malloc(PATH_MAX)))
        return 0;
    memset(rm->owd, 0, sizeof(rm->owd));
 
    if (NULL == (rm->cwd = (char *) malloc(PATH_MAX)))
        return 0;
    memset(rm->cwd, 0, sizeof(rm->cwd));
 
    chdir(".");
 
    if (NULL == (getcwd(rm->owd, PATH_MAX)))
        return 0;
 
    return 1;
}
 
static void rm_end(rm_job_t *rm)
{
    if (NULL != rm->nwd)
        free(rm->nwd);
 
    if (NULL != rm->owd)
        free(rm->owd);
 
    if (NULL != rm->cwd)
        free(rm->cwd);
 
    return;
}
 
static unsigned int rm_recursive(const char *path)
{
    int rc;
 
    /* First see if it will just go away */
    rc = rmdir(path);
    if (rc == 0)
        return 0;
 
    /* Its not empty, recursively scan it */
    cli_error(CL_ENOTSUP,
        "Can not remove %s, directory not empty", path);
    return 1;
}
 
static unsigned int rm_single(const char *path)
{
    if (unlink(path)) {
        cli_error(CL_EFAIL, "rm: could not remove file %s", path);
        return 1;
    }
    return 0;
}
 
static unsigned int rm_scope(const char *path)
{
    int fd;
    DIR *dirp;
 
    dirp = opendir(path);
    if (dirp) {
        closedir(dirp);
        return RM_DIR;
    }
 
    fd = open(path, O_RDONLY);
    if (fd > 0) {
        close(fd);
        return RM_FILE;
    }
 
    return RM_BOGUS;
}
 
/* Dispays help for rm in various levels */
void help_cmd_rm(unsigned int level)
{
    if (level == HELP_SHORT) {
        printf("`%s' removes files and directories.\n", cmdname);
    } else {
        help_cmd_rm(HELP_SHORT);
        printf(
        "Usage:  %s [options] <path>\n"
        "Options:\n"
        "  -h, --help       A short option summary\n"
        "  -v, --version    Print version information and exit\n"
        "  -r, --recursive  Recursively remove sub directories\n"
        "  -f, --force      Do not prompt prior to removing files\n"
        "  -s, --safe       Stop if directories change during removal\n\n"
        "Currently, %s is under development, some options don't work.\n",
        cmdname, cmdname);
    }
    return;
}
 
/* Main entry point for rm, accepts an array of arguments */
int cmd_rm(char **argv)
{
    unsigned int argc;
    unsigned int i, scope, ret = 0;
    int c, opt_ind;
    size_t len;
    char *buff = NULL;
 
    argc = cli_count_args(argv);
 
    if (argc < 2) {
        cli_error(CL_EFAIL,
            "%s: insufficient arguments. Try %s --help", cmdname, cmdname);
        return CMD_FAILURE;
    }
 
    if (!rm_start(&rm)) {
        cli_error(CL_ENOMEM, "%s: could not initialize", cmdname);
        rm_end(&rm);
        return CMD_FAILURE;
    }
 
    for (c = 0, optind = 0, opt_ind = 0; c != -1;) {
        c = getopt_long(argc, argv, "hvrfs", long_options, &opt_ind);
        switch (c) {
        case 'h':
            help_cmd_rm(HELP_LONG);
            return CMD_SUCCESS;
        case 'v':
            printf("%s\n", RM_VERSION);
            return CMD_SUCCESS;
        case 'r':
            rm.recursive = 1;
            break;
        case 'f':
            rm.force = 1;
            break;
        case 's':
            rm.safe = 1;
            break;
        }
    }
 
    if ((unsigned) optind == argc) {
        cli_error(CL_EFAIL,
            "%s: insufficient arguments. Try %s --help", cmdname, cmdname);
        rm_end(&rm);
        return CMD_FAILURE;
    }
 
    i = optind;
    while (NULL != argv[i]) {
        len = str_size(argv[i]) + 2;
        buff = (char *) realloc(buff, len);
        if (buff == NULL) {
            printf("rm: out of memory\n");
            ret = 1;
            break;
        }
        memset(buff, 0, sizeof(buff));
        snprintf(buff, len, argv[i]);
 
        scope = rm_scope(buff);
        switch (scope) {
        case RM_BOGUS: /* FIXME */
        case RM_FILE:
            ret += rm_single(buff);
            break;
        case RM_DIR:
            if (! rm.recursive) {
                printf("%s is a directory, use -r to remove it.\n", buff);
                ret ++;
            } else {
                ret += rm_recursive(buff);
            }
            break;
        }
        i++;
    }
 
    if (NULL != buff)
        free(buff);
 
    rm_end(&rm);
 
    if (ret)
        return CMD_FAILURE;
    else
        return CMD_SUCCESS;
}
 
 

Rev 4377	Rev 4692
1	/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>	1	/* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>
2	* All rights reserved.	2	* All rights reserved.
3	*	3	*
4	* Redistribution and use in source and binary forms, with or without	4	* Redistribution and use in source and binary forms, with or without
5	* modification, are permitted provided that the following conditions are met:	5	* modification, are permitted provided that the following conditions are met:
6	*	6	*
7	* Redistributions of source code must retain the above copyright notice, this	7	* Redistributions of source code must retain the above copyright notice, this
8	* list of conditions and the following disclaimer.	8	* list of conditions and the following disclaimer.
9	*	9	*
10	* Redistributions in binary form must reproduce the above copyright notice,	10	* Redistributions in binary form must reproduce the above copyright notice,
11	* this list of conditions and the following disclaimer in the documentation	11	* this list of conditions and the following disclaimer in the documentation
12	* and/or other materials provided with the distribution.	12	* and/or other materials provided with the distribution.
13	*	13	*
14	* Neither the name of the original program's authors nor the names of its	14	* Neither the name of the original program's authors nor the names of its
15	* contributors may be used to endorse or promote products derived from this	15	* contributors may be used to endorse or promote products derived from this
16	* software without specific prior written permission.	16	* software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"	18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE	19	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE	20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE	21	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR	22	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF	23	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS	24	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN	25	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)	26	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE	27	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28	* POSSIBILITY OF SUCH DAMAGE.	28	* POSSIBILITY OF SUCH DAMAGE.
29	*/	29	*/
30		30
31	#include <stdio.h>	31	#include <stdio.h>
32	#include <stdlib.h>	32	#include <stdlib.h>
33	#include <unistd.h>	33	#include <unistd.h>
34	#include <fcntl.h>	34	#include <fcntl.h>
35	#include <dirent.h>	35	#include <dirent.h>
36	#include <getopt.h>	36	#include <getopt.h>
-		37	#include <mem.h>
-		38	#include <string.h>
37		39
38	#include "config.h"	40	#include "config.h"
39	#include "errors.h"	41	#include "errors.h"
40	#include "util.h"	42	#include "util.h"
41	#include "entry.h"	43	#include "entry.h"
42	#include "rm.h"	44	#include "rm.h"
43	#include "cmds.h"	45	#include "cmds.h"
44		46
45	static char *cmdname = "rm";	47	static char *cmdname = "rm";
46	#define RM_VERSION "0.0.1"	48	#define RM_VERSION "0.0.1"
47		49
48	static rm_job_t rm;	50	static rm_job_t rm;
49		51
50	static struct option const long_options[] = {	52	static struct option const long_options[] = {
51	{ "help", no_argument, 0, 'h' },	53	{ "help", no_argument, 0, 'h' },
52	{ "version", no_argument, 0, 'v' },	54	{ "version", no_argument, 0, 'v' },
53	{ "recursive", no_argument, 0, 'r' },	55	{ "recursive", no_argument, 0, 'r' },
54	{ "force", no_argument, 0, 'f' },	56	{ "force", no_argument, 0, 'f' },
55	{ "safe", no_argument, 0, 's' },	57	{ "safe", no_argument, 0, 's' },
56	{ 0, 0, 0, 0 }	58	{ 0, 0, 0, 0 }
57	};	59	};
58		60
59	static unsigned int rm_start(rm_job_t *rm)	61	static unsigned int rm_start(rm_job_t *rm)
60	{	62	{
61	rm->recursive = 0;	63	rm->recursive = 0;
62	rm->force = 0;	64	rm->force = 0;
63	rm->safe = 0;	65	rm->safe = 0;
64		66
65	/* Make sure we can allocate enough memory to store	67	/* Make sure we can allocate enough memory to store
66	* what is needed in the job structure */	68	* what is needed in the job structure */
67	if (NULL == (rm->nwd = (char *) malloc(PATH_MAX)))	69	if (NULL == (rm->nwd = (char *) malloc(PATH_MAX)))
68	return 0;	70	return 0;
69	memset(rm->nwd, 0, sizeof(rm->nwd));	71	memset(rm->nwd, 0, sizeof(rm->nwd));
70		72
71	if (NULL == (rm->owd = (char *) malloc(PATH_MAX)))	73	if (NULL == (rm->owd = (char *) malloc(PATH_MAX)))
72	return 0;	74	return 0;
73	memset(rm->owd, 0, sizeof(rm->owd));	75	memset(rm->owd, 0, sizeof(rm->owd));
74		76
75	if (NULL == (rm->cwd = (char *) malloc(PATH_MAX)))	77	if (NULL == (rm->cwd = (char *) malloc(PATH_MAX)))
76	return 0;	78	return 0;
77	memset(rm->cwd, 0, sizeof(rm->cwd));	79	memset(rm->cwd, 0, sizeof(rm->cwd));
78		80
79	chdir(".");	81	chdir(".");
80		82
81	if (NULL == (getcwd(rm->owd, PATH_MAX)))	83	if (NULL == (getcwd(rm->owd, PATH_MAX)))
82	return 0;	84	return 0;
83		85
84	return 1;	86	return 1;
85	}	87	}
86		88
87	static void rm_end(rm_job_t *rm)	89	static void rm_end(rm_job_t *rm)
88	{	90	{
89	if (NULL != rm->nwd)	91	if (NULL != rm->nwd)
90	free(rm->nwd);	92	free(rm->nwd);
91		93
92	if (NULL != rm->owd)	94	if (NULL != rm->owd)
93	free(rm->owd);	95	free(rm->owd);
94		96
95	if (NULL != rm->cwd)	97	if (NULL != rm->cwd)
96	free(rm->cwd);	98	free(rm->cwd);
97		99
98	return;	100	return;
99	}	101	}
100		102
101	static unsigned int rm_recursive(const char *path)	103	static unsigned int rm_recursive(const char *path)
102	{	104	{
103	int rc;	105	int rc;
104		106
105	/* First see if it will just go away */	107	/* First see if it will just go away */
106	rc = rmdir(path);	108	rc = rmdir(path);
107	if (rc == 0)	109	if (rc == 0)
108	return 0;	110	return 0;
109		111
110	/* Its not empty, recursively scan it */	112	/* Its not empty, recursively scan it */
111	cli_error(CL_ENOTSUP,	113	cli_error(CL_ENOTSUP,
112	"Can not remove %s, directory not empty", path);	114	"Can not remove %s, directory not empty", path);
113	return 1;	115	return 1;
114	}	116	}
115		117
116	static unsigned int rm_single(const char *path)	118	static unsigned int rm_single(const char *path)
117	{	119	{
118	if (unlink(path)) {	120	if (unlink(path)) {
119	cli_error(CL_EFAIL, "rm: could not remove file %s", path);	121	cli_error(CL_EFAIL, "rm: could not remove file %s", path);
120	return 1;	122	return 1;
121	}	123	}
122	return 0;	124	return 0;
123	}	125	}
124		126
125	static unsigned int rm_scope(const char *path)	127	static unsigned int rm_scope(const char *path)
126	{	128	{
127	int fd;	129	int fd;
128	DIR *dirp;	130	DIR *dirp;
129		131
130	dirp = opendir(path);	132	dirp = opendir(path);
131	if (dirp) {	133	if (dirp) {
132	closedir(dirp);	134	closedir(dirp);
133	return RM_DIR;	135	return RM_DIR;
134	}	136	}
135		137
136	fd = open(path, O_RDONLY);	138	fd = open(path, O_RDONLY);
137	if (fd > 0) {	139	if (fd > 0) {
138	close(fd);	140	close(fd);
139	return RM_FILE;	141	return RM_FILE;
140	}	142	}
141		143
142	return RM_BOGUS;	144	return RM_BOGUS;
143	}	145	}
144		146
145	/* Dispays help for rm in various levels */	147	/* Dispays help for rm in various levels */
146	void help_cmd_rm(unsigned int level)	148	void help_cmd_rm(unsigned int level)
147	{	149	{
148	if (level == HELP_SHORT) {	150	if (level == HELP_SHORT) {
149	printf("`%s' removes files and directories.\n", cmdname);	151	printf("`%s' removes files and directories.\n", cmdname);
150	} else {	152	} else {
151	help_cmd_rm(HELP_SHORT);	153	help_cmd_rm(HELP_SHORT);
152	printf(	154	printf(
153	"Usage: %s [options] <path>\n"	155	"Usage: %s [options] <path>\n"
154	"Options:\n"	156	"Options:\n"
155	" -h, --help A short option summary\n"	157	" -h, --help A short option summary\n"
156	" -v, --version Print version information and exit\n"	158	" -v, --version Print version information and exit\n"
157	" -r, --recursive Recursively remove sub directories\n"	159	" -r, --recursive Recursively remove sub directories\n"
158	" -f, --force Do not prompt prior to removing files\n"	160	" -f, --force Do not prompt prior to removing files\n"
159	" -s, --safe Stop if directories change during removal\n\n"	161	" -s, --safe Stop if directories change during removal\n\n"
160	"Currently, %s is under development, some options don't work.\n",	162	"Currently, %s is under development, some options don't work.\n",
161	cmdname, cmdname);	163	cmdname, cmdname);
162	}	164	}
163	return;	165	return;
164	}	166	}
165		167
166	/* Main entry point for rm, accepts an array of arguments */	168	/* Main entry point for rm, accepts an array of arguments */
167	int cmd_rm(char **argv)	169	int cmd_rm(char **argv)
168	{	170	{
169	unsigned int argc;	171	unsigned int argc;
170	unsigned int i, scope, ret = 0;	172	unsigned int i, scope, ret = 0;
171	int c, opt_ind;	173	int c, opt_ind;
172	size_t len;	174	size_t len;
173	char *buff = NULL;	175	char *buff = NULL;
174		176
175	argc = cli_count_args(argv);	177	argc = cli_count_args(argv);
176		178
177	if (argc < 2) {	179	if (argc < 2) {
178	cli_error(CL_EFAIL,	180	cli_error(CL_EFAIL,
179	"%s: insufficient arguments. Try %s --help", cmdname, cmdname);	181	"%s: insufficient arguments. Try %s --help", cmdname, cmdname);
180	return CMD_FAILURE;	182	return CMD_FAILURE;
181	}	183	}
182		184
183	if (!rm_start(&rm)) {	185	if (!rm_start(&rm)) {
184	cli_error(CL_ENOMEM, "%s: could not initialize", cmdname);	186	cli_error(CL_ENOMEM, "%s: could not initialize", cmdname);
185	rm_end(&rm);	187	rm_end(&rm);
186	return CMD_FAILURE;	188	return CMD_FAILURE;
187	}	189	}
188		190
189	for (c = 0, optind = 0, opt_ind = 0; c != -1;) {	191	for (c = 0, optind = 0, opt_ind = 0; c != -1;) {
190	c = getopt_long(argc, argv, "hvrfs", long_options, &opt_ind);	192	c = getopt_long(argc, argv, "hvrfs", long_options, &opt_ind);
191	switch (c) {	193	switch (c) {
192	case 'h':	194	case 'h':
193	help_cmd_rm(HELP_LONG);	195	help_cmd_rm(HELP_LONG);
194	return CMD_SUCCESS;	196	return CMD_SUCCESS;
195	case 'v':	197	case 'v':
196	printf("%s\n", RM_VERSION);	198	printf("%s\n", RM_VERSION);
197	return CMD_SUCCESS;	199	return CMD_SUCCESS;
198	case 'r':	200	case 'r':
199	rm.recursive = 1;	201	rm.recursive = 1;
200	break;	202	break;
201	case 'f':	203	case 'f':
202	rm.force = 1;	204	rm.force = 1;
203	break;	205	break;
204	case 's':	206	case 's':
205	rm.safe = 1;	207	rm.safe = 1;
206	break;	208	break;
207	}	209	}
208	}	210	}
209		211
210	if (optind == argc) {	212	if ((unsigned) optind == argc) {
211	cli_error(CL_EFAIL,	213	cli_error(CL_EFAIL,
212	"%s: insufficient arguments. Try %s --help", cmdname, cmdname);	214	"%s: insufficient arguments. Try %s --help", cmdname, cmdname);
213	rm_end(&rm);	215	rm_end(&rm);
214	return CMD_FAILURE;	216	return CMD_FAILURE;
215	}	217	}
216		218
217	i = optind;	219	i = optind;
218	while (NULL != argv[i]) {	220	while (NULL != argv[i]) {
219	len = str_size(argv[i]) + 2;	221	len = str_size(argv[i]) + 2;
220	buff = (char *) realloc(buff, len);	222	buff = (char *) realloc(buff, len);
221	if (buff == NULL) {	223	if (buff == NULL) {
222	printf("rm: out of memory\n");	224	printf("rm: out of memory\n");
223	ret = 1;	225	ret = 1;
224	break;	226	break;
225	}	227	}
226	memset(buff, 0, sizeof(buff));	228	memset(buff, 0, sizeof(buff));
227	snprintf(buff, len, argv[i]);	229	snprintf(buff, len, argv[i]);
228		230
229	scope = rm_scope(buff);	231	scope = rm_scope(buff);
230	switch (scope) {	232	switch (scope) {
231	case RM_BOGUS: /* FIXME */	233	case RM_BOGUS: /* FIXME */
232	case RM_FILE:	234	case RM_FILE:
233	ret += rm_single(buff);	235	ret += rm_single(buff);
234	break;	236	break;
235	case RM_DIR:	237	case RM_DIR:
236	if (! rm.recursive) {	238	if (! rm.recursive) {
237	printf("%s is a directory, use -r to remove it.\n", buff);	239	printf("%s is a directory, use -r to remove it.\n", buff);
238	ret ++;	240	ret ++;
239	} else {	241	} else {
240	ret += rm_recursive(buff);	242	ret += rm_recursive(buff);
241	}	243	}
242	break;	244	break;
243	}	245	}
244	i++;	246	i++;
245	}	247	}
246		248
247	if (NULL != buff)	249	if (NULL != buff)
248	free(buff);	250	free(buff);
249		251
250	rm_end(&rm);	252	rm_end(&rm);
251		253
252	if (ret)	254	if (ret)
253	return CMD_FAILURE;	255	return CMD_FAILURE;
254	else	256	else
255	return CMD_SUCCESS;	257	return CMD_SUCCESS;
256	}	258	}
257		259
258		260

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(root)/branches/tracing/uspace/app/bdsh/cmds/modules/rm/rm.c – Rev 4377 → 4692