xref: /freebsd/sys/contrib/openzfs/cmd/zstream/zstream.c (revision 61145dc2b94f12f6a47344fb9aac702321880e43)
1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3  * CDDL HEADER START
4  *
5  * This file and its contents are supplied under the terms of the
6  * Common Development and Distribution License ("CDDL"), version 1.0.
7  * You may only use this file in accordance with the terms of version
8  * 1.0 of the CDDL.
9  *
10  * A full copy of the text of the CDDL should have accompanied this
11  * source.  A copy of the CDDL is also available via the Internet at
12  * http://www.illumos.org/license/CDDL.
13  *
14  * CDDL HEADER END
15  */
16 
17 /*
18  * Copyright (c) 2020 by Delphix. All rights reserved.
19  * Copyright (c) 2020 by Datto Inc. All rights reserved.
20  */
21 #include <sys/types.h>
22 #include <sys/stat.h>
23 #include <fcntl.h>
24 #include <ctype.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <unistd.h>
29 #include <libintl.h>
30 #include <stddef.h>
31 #include <libzfs.h>
32 #include "zstream.h"
33 
34 void
zstream_usage(void)35 zstream_usage(void)
36 {
37 	(void) fprintf(stderr,
38 	    "usage: zstream command args ...\n"
39 	    "Available commands are:\n"
40 	    "\n"
41 	    "\tzstream dump [-vCd] FILE\n"
42 	    "\t... | zstream dump [-vCd]\n"
43 	    "\n"
44 	    "\tzstream decompress [-v] [OBJECT,OFFSET[,TYPE]] ...\n"
45 	    "\n"
46 	    "\tzstream recompress [ -l level] TYPE\n"
47 	    "\n"
48 	    "\tzstream token resume_token\n"
49 	    "\n"
50 	    "\tzstream redup [-v] FILE | ...\n");
51 	exit(1);
52 }
53 
54 int
main(int argc,char * argv[])55 main(int argc, char *argv[])
56 {
57 	char *basename = strrchr(argv[0], '/');
58 	basename = basename ? (basename + 1) : argv[0];
59 	if (argc >= 1 && strcmp(basename, "zstreamdump") == 0)
60 		return (zstream_do_dump(argc, argv));
61 
62 	if (argc < 2)
63 		zstream_usage();
64 
65 	char *subcommand = argv[1];
66 
67 	if (strcmp(subcommand, "dump") == 0) {
68 		return (zstream_do_dump(argc - 1, argv + 1));
69 	} else if (strcmp(subcommand, "decompress") == 0) {
70 		return (zstream_do_decompress(argc - 1, argv + 1));
71 	} else if (strcmp(subcommand, "recompress") == 0) {
72 		return (zstream_do_recompress(argc - 1, argv + 1));
73 	} else if (strcmp(subcommand, "token") == 0) {
74 		return (zstream_do_token(argc - 1, argv + 1));
75 	} else if (strcmp(subcommand, "redup") == 0) {
76 		return (zstream_do_redup(argc - 1, argv + 1));
77 	} else {
78 		zstream_usage();
79 	}
80 }
81