WebSVN – HelenOS – Diff – /branches/dd/uspace/app/bdsh/cmds/modules/cp/cp.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 <getopt.h>
#include <string.h>
#include <fcntl.h>
#include "config.h"
#include "util.h"
#include "errors.h"
#include "entry.h"
#include "cp.h"
#include "cmds.h"
 
#define CP_VERSION "0.0.1"
#define CP_DEFAULT_BUFLEN  1024
 
static const char *cmdname = "cp";
 
static struct option const long_options[] = {
    { "buffer", required_argument, 0, 'b' },
    { "force", no_argument, 0, 'f' },
    { "recursive", no_argument, 0, 'r' },
    { "help", no_argument, 0, 'h' },
    { "version", no_argument, 0, 'v' },
    { "verbose", no_argument, 0, 'V' },
    { 0, 0, 0, 0 }
};
 
static int strtoint(const char *s1)
{
    long t1;
 
    if (-1 == (t1 = strtol(s1, (char **) NULL, 10)))
        return -1;
 
    if (t1 <= 0)
        return -1;
 
    return (int) t1;
}
 
static int64_t copy_file(const char *src, const char *dest, size_t blen, int vb)
{
    int fd1, fd2, bytes = 0;
    off_t total = 0;
    int copied = -1;
    char *buff = NULL;
 
    if (vb)
        printf("Copying %s to %s\n", src, dest);
 
    if (-1 == (fd1 = open(src, O_RDONLY))) {
        printf("Unable to open source file %s\n", src);
        return copied;
    }
 
    if (-1 == (fd2 = open(dest, O_CREAT))) {
        printf("Unable to open destination file %s\n", dest);
        return copied;
    }
 
    total = lseek(fd1, 0, SEEK_END);
 
    if (vb)
        printf("%d bytes to copy\n", total);
 
    lseek(fd1, 0, SEEK_SET);
 
    if (NULL == (buff = (char *) malloc(blen + 1))) {
        printf("Unable to allocate enough memory to read %s\n",
            src);
        goto out;
    }
 
    do {
        if (-1 == (bytes = read(fd1, buff, blen)))
            break;
        copied += bytes;
        write(fd2, buff, blen);
    } while (bytes > 0);
 
    if (bytes == -1) {
        printf("Error copying %s\n", src);
        copied = bytes;
        goto out;
    }
 
out:
    close(fd1);
    close(fd2);
    if (buff)
        free(buff);
    return copied;
}
 
void help_cmd_cp(unsigned int level)
{
    if (level == HELP_SHORT) {
        printf("`%s' copies files and directories\n", cmdname);
    } else {
        help_cmd_cp(HELP_SHORT);
        printf(
        "Usage:  %s [options] <source> <dest>\n"
        "Options: (* indicates not yet implemented)\n"
        "  -h, --help       A short option summary\n"
        "  -v, --version    Print version information and exit\n"
        "* -V, --verbose    Be annoyingly noisy about what's being done\n"
        "* -f, --force      Do not complain when <dest> exists\n"
        "* -r, --recursive  Copy entire directories\n"
        "  -b, --buffer ## Set the read buffer size to ##\n"
        "Currently, %s is under development, some options might not work.\n",
        cmdname, cmdname);
    }
 
    return;
}
 
int cmd_cp(char **argv)
{
    unsigned int argc, buffer = CP_DEFAULT_BUFLEN, verbose = 0;
    int c, opt_ind;
    int64_t ret;
 
    argc = cli_count_args(argv);
 
    for (c = 0, optind = 0, opt_ind = 0; c != -1;) {
        c = getopt_long(argc, argv, "hvVfrb:", long_options, &opt_ind);
        switch (c) {
        case 'h':
            help_cmd_cp(1);
            return CMD_SUCCESS;
        case 'v':
            printf("%d\n", CP_VERSION);
            return CMD_SUCCESS;
        case 'V':
            verbose = 1;
            break;
        case 'f':
            break;
        case 'r':
            break;
        case 'b':
            if (-1 == (buffer = strtoint(optarg))) {
                printf("%s: Invalid buffer specification, "
                    "(should be a number greater than zero)\n",
                    cmdname);
                return CMD_FAILURE;
            }
            break;
        }
    }
 
    argc -= optind;
 
    if (argc != 2) {
        printf("%s: invalid number of arguments. Try %s --help\n",
            cmdname, cmdname);
        return CMD_FAILURE;
    }
 
    ret = copy_file(argv[optind], argv[optind + 1], buffer, verbose);
 
    if (verbose)
        printf("%d bytes copied (buffer = %d)\n", ret, buffer);
 
    if (ret <= 0)
        return CMD_SUCCESS;
    else
        return CMD_FAILURE;
}
 
 

Rev 3641	Rev 3642
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 <getopt.h>	34	#include <getopt.h>
35	#include <string.h>	35	#include <string.h>
36	#include <fcntl.h>	36	#include <fcntl.h>
37	#include "config.h"	37	#include "config.h"
38	#include "util.h"	38	#include "util.h"
39	#include "errors.h"	39	#include "errors.h"
40	#include "entry.h"	40	#include "entry.h"
41	#include "cp.h"	41	#include "cp.h"
42	#include "cmds.h"	42	#include "cmds.h"
43		43
44	#define CP_VERSION "0.0.1"	44	#define CP_VERSION "0.0.1"
45	#define CP_DEFAULT_BUFLEN 1024	45	#define CP_DEFAULT_BUFLEN 1024
46		46
47	static const char *cmdname = "cp";	47	static const char *cmdname = "cp";
48		48
49	static struct option const long_options[] = {	49	static struct option const long_options[] = {
50	{ "buffer", required_argument, 0, 'b' },	50	{ "buffer", required_argument, 0, 'b' },
51	{ "force", no_argument, 0, 'f' },	51	{ "force", no_argument, 0, 'f' },
52	{ "recursive", no_argument, 0, 'r' },	52	{ "recursive", no_argument, 0, 'r' },
53	{ "help", no_argument, 0, 'h' },	53	{ "help", no_argument, 0, 'h' },
54	{ "version", no_argument, 0, 'v' },	54	{ "version", no_argument, 0, 'v' },
55	{ "verbose", no_argument, 0, 'V' },	55	{ "verbose", no_argument, 0, 'V' },
56	{ 0, 0, 0, 0 }	56	{ 0, 0, 0, 0 }
57	};	57	};
58		58
59	static int strtoint(const char *s1)	59	static int strtoint(const char *s1)
60	{	60	{
61	long t1;	61	long t1;
62		62
63	if (-1 == (t1 = strtol(s1, (char **) NULL, 10)))	63	if (-1 == (t1 = strtol(s1, (char **) NULL, 10)))
64	return -1;	64	return -1;
65		65
66	if (t1 <= 0)	66	if (t1 <= 0)
67	return -1;	67	return -1;
68		68
69	return (int) t1;	69	return (int) t1;
70	}	70	}
71		71
72	static size_t copy_file(const char src, const char dest, size_t blen, int vb)	72	static int64_t copy_file(const char src, const char dest, size_t blen, int vb)
73	{	73	{
74	int fd1, fd2, bytes = 0;	74	int fd1, fd2, bytes = 0;
75	off_t total = 0;	75	off_t total = 0;
76	size_t copied = 0;	76	int copied = -1;
77	char *buff = NULL;	77	char *buff = NULL;
78		78
79	if (vb)	79	if (vb)
80	printf("Copying %s to %s\n", src, dest);	80	printf("Copying %s to %s\n", src, dest);
81		81
82	if (-1 == (fd1 = open(src, O_RDONLY))) {	82	if (-1 == (fd1 = open(src, O_RDONLY))) {
83	printf("Unable to open source file %s\n", src);	83	printf("Unable to open source file %s\n", src);
84	return 0;	84	return copied;
85	}	85	}
86		86
87	if (-1 == (fd2 = open(dest, O_CREAT))) {	87	if (-1 == (fd2 = open(dest, O_CREAT))) {
88	printf("Unable to open destination file %s\n", dest);	88	printf("Unable to open destination file %s\n", dest);
89	return 0;	89	return copied;
90	}	90	}
91		91
92	total = lseek(fd1, 0, SEEK_END);	92	total = lseek(fd1, 0, SEEK_END);
93		93
94	if (vb)	94	if (vb)
95	printf("%d bytes to copy\n", total);	95	printf("%d bytes to copy\n", total);
96		96
97	lseek(fd1, 0, SEEK_SET);	97	lseek(fd1, 0, SEEK_SET);
98		98
99	if (NULL == (buff = (char *) malloc(blen + 1))) {	99	if (NULL == (buff = (char *) malloc(blen + 1))) {
100	printf("Unable to allocate enough memory to read %s\n",	100	printf("Unable to allocate enough memory to read %s\n",
101	src);	101	src);
102	goto out;	102	goto out;
103	}	103	}
104		104
105	do {	105	do {
106	if (-1 == (bytes = read(fd1, buff, blen)))	106	if (-1 == (bytes = read(fd1, buff, blen)))
107	break;	107	break;
108	copied += bytes;	108	copied += bytes;
109	write(fd2, buff, blen);	109	write(fd2, buff, blen);
110	} while (bytes > 0);	110	} while (bytes > 0);
111		111
112	if (bytes == -1) {	112	if (bytes == -1) {
113	printf("Error copying %s\n", src);	113	printf("Error copying %s\n", src);
114	copied = 0;	114	copied = bytes;
115	goto out;	115	goto out;
116	}	116	}
117		117
118	out:	118	out:
119	close(fd1);	119	close(fd1);
120	close(fd2);	120	close(fd2);
121	if (buff)	121	if (buff)
122	free(buff);	122	free(buff);
123	return copied;	123	return copied;
124	}	124	}
125		125
126	void help_cmd_cp(unsigned int level)	126	void help_cmd_cp(unsigned int level)
127	{	127	{
128	if (level == HELP_SHORT) {	128	if (level == HELP_SHORT) {
129	printf("`%s' copies files and directories\n", cmdname);	129	printf("`%s' copies files and directories\n", cmdname);
130	} else {	130	} else {
131	help_cmd_cp(HELP_SHORT);	131	help_cmd_cp(HELP_SHORT);
132	printf(	132	printf(
133	"Usage: %s [options] <source> <dest>\n"	133	"Usage: %s [options] <source> <dest>\n"
134	"Options: (* indicates not yet implemented)\n"	134	"Options: (* indicates not yet implemented)\n"
135	" -h, --help A short option summary\n"	135	" -h, --help A short option summary\n"
136	" -v, --version Print version information and exit\n"	136	" -v, --version Print version information and exit\n"
137	"* -V, --verbose Be annoyingly noisy about what's being done\n"	137	"* -V, --verbose Be annoyingly noisy about what's being done\n"
138	"* -f, --force Do not complain when <dest> exists\n"	138	"* -f, --force Do not complain when <dest> exists\n"
139	"* -r, --recursive Copy entire directories\n"	139	"* -r, --recursive Copy entire directories\n"
140	" -b, --buffer ## Set the read buffer size to ##\n"	140	" -b, --buffer ## Set the read buffer size to ##\n"
141	"Currently, %s is under development, some options might not work.\n",	141	"Currently, %s is under development, some options might not work.\n",
142	cmdname, cmdname);	142	cmdname, cmdname);
143	}	143	}
144		144
145	return;	145	return;
146	}	146	}
147		147
148	int cmd_cp(char **argv)	148	int cmd_cp(char **argv)
149	{	149	{
150	unsigned int argc, buffer = CP_DEFAULT_BUFLEN, verbose = 0;	150	unsigned int argc, buffer = CP_DEFAULT_BUFLEN, verbose = 0;
151	int c, opt_ind, ret = 0;	151	int c, opt_ind;
-		152	int64_t ret;
152		153
153	argc = cli_count_args(argv);	154	argc = cli_count_args(argv);
154		155
155	for (c = 0, optind = 0, opt_ind = 0; c != -1;) {	156	for (c = 0, optind = 0, opt_ind = 0; c != -1;) {
156	c = getopt_long(argc, argv, "hvVfrb:", long_options, &opt_ind);	157	c = getopt_long(argc, argv, "hvVfrb:", long_options, &opt_ind);
157	switch (c) {	158	switch (c) {
158	case 'h':	159	case 'h':
159	help_cmd_cp(1);	160	help_cmd_cp(1);
160	return CMD_SUCCESS;	161	return CMD_SUCCESS;
161	case 'v':	162	case 'v':
162	printf("%d\n", CP_VERSION);	163	printf("%d\n", CP_VERSION);
163	return CMD_SUCCESS;	164	return CMD_SUCCESS;
164	case 'V':	165	case 'V':
165	verbose = 1;	166	verbose = 1;
166	break;	167	break;
167	case 'f':	168	case 'f':
168	break;	169	break;
169	case 'r':	170	case 'r':
170	break;	171	break;
171	case 'b':	172	case 'b':
172	if (-1 == (buffer = strtoint(optarg))) {	173	if (-1 == (buffer = strtoint(optarg))) {
173	printf("%s: Invalid buffer specification, "	174	printf("%s: Invalid buffer specification, "
174	"(should be a number greater than zero)\n",	175	"(should be a number greater than zero)\n",
175	cmdname);	176	cmdname);
176	return CMD_FAILURE;	177	return CMD_FAILURE;
177	}	178	}
178	break;	179	break;
179	}	180	}
180	}	181	}
181		182
182	argc -= optind;	183	argc -= optind;
183		184
184	if (argc != 2) {	185	if (argc != 2) {
185	printf("%s: invalid number of arguments. Try %s --help\n",	186	printf("%s: invalid number of arguments. Try %s --help\n",
186	cmdname, cmdname);	187	cmdname, cmdname);
187	return CMD_FAILURE;	188	return CMD_FAILURE;
188	}	189	}
189		190
190	ret = copy_file(argv[optind], argv[optind + 1], buffer, verbose);	191	ret = copy_file(argv[optind], argv[optind + 1], buffer, verbose);
191		192
192	if (verbose)	193	if (verbose)
193	printf("%d bytes copied (buffer = %d)\n", ret, buffer);	194	printf("%d bytes copied (buffer = %d)\n", ret, buffer);
194		195
195	if (ret <= 0)	196	if (ret <= 0)
196	return CMD_SUCCESS;	197	return CMD_SUCCESS;
197	else	198	else
198	return CMD_FAILURE;	199	return CMD_FAILURE;
199	}	200	}
200		201
201		202

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(root)/branches/dd/uspace/app/bdsh/cmds/modules/cp/cp.c @ 4688 – Rev 3641 → 3642