xref: /freebsd/sys/contrib/openzfs/cmd/zstream/zstream.c (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
1 /*
2  * CDDL HEADER START
3  *
4  * This file and its contents are supplied under the terms of the
5  * Common Development and Distribution License ("CDDL"), version 1.0.
6  * You may only use this file in accordance with the terms of version
7  * 1.0 of the CDDL.
8  *
9  * A full copy of the text of the CDDL should have accompanied this
10  * source.  A copy of the CDDL is also available via the Internet at
11  * http://www.illumos.org/license/CDDL.
12  *
13  * CDDL HEADER END
14  */
15 
16 /*
17  * Copyright (c) 2020 by Delphix. All rights reserved.
18  * Copyright (c) 2020 by Datto Inc. All rights reserved.
19  */
20 #include <sys/types.h>
21 #include <sys/stat.h>
22 #include <fcntl.h>
23 #include <ctype.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <unistd.h>
28 #include <libintl.h>
29 #include <stddef.h>
30 #include <libzfs.h>
31 #include "zstream.h"
32 
33 void
34 zstream_usage(void)
35 {
36 	(void) fprintf(stderr,
37 	    "usage: zstream command args ...\n"
38 	    "Available commands are:\n"
39 	    "\n"
40 	    "\tzstream dump [-vCd] FILE\n"
41 	    "\t... | zstream dump [-vCd]\n"
42 	    "\n"
43 	    "\tzstream decompress [-v] [OBJECT,OFFSET[,TYPE]] ...\n"
44 	    "\n"
45 	    "\tzstream recompress [ -l level] TYPE\n"
46 	    "\n"
47 	    "\tzstream token resume_token\n"
48 	    "\n"
49 	    "\tzstream redup [-v] FILE | ...\n");
50 	exit(1);
51 }
52 
53 int
54 main(int argc, char *argv[])
55 {
56 	char *basename = strrchr(argv[0], '/');
57 	basename = basename ? (basename + 1) : argv[0];
58 	if (argc >= 1 && strcmp(basename, "zstreamdump") == 0)
59 		return (zstream_do_dump(argc, argv));
60 
61 	if (argc < 2)
62 		zstream_usage();
63 
64 	char *subcommand = argv[1];
65 
66 	if (strcmp(subcommand, "dump") == 0) {
67 		return (zstream_do_dump(argc - 1, argv + 1));
68 	} else if (strcmp(subcommand, "decompress") == 0) {
69 		return (zstream_do_decompress(argc - 1, argv + 1));
70 	} else if (strcmp(subcommand, "recompress") == 0) {
71 		return (zstream_do_recompress(argc - 1, argv + 1));
72 	} else if (strcmp(subcommand, "token") == 0) {
73 		return (zstream_do_token(argc - 1, argv + 1));
74 	} else if (strcmp(subcommand, "redup") == 0) {
75 		return (zstream_do_redup(argc - 1, argv + 1));
76 	} else {
77 		zstream_usage();
78 	}
79 }
80