cmd/zstream/zstream.c

   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 }