[1765] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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[2725] | 3 | * Common code for gunzip-like applets
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[1765] | 4 | *
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[2725] | 5 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[1765] | 6 | */
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| 7 | #include "libbb.h"
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[3232] | 8 | #include "bb_archive.h"
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[1765] | 9 |
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[3621] | 10 | /* lzop_main() uses bbunpack(), need this: */
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| 11 | //kbuild:lib-$(CONFIG_LZOP) += bbunzip.o
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| 12 |
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| 13 | /* Note: must be kept in sync with archival/lzop.c */
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[1765] | 14 | enum {
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[2725] | 15 | OPT_STDOUT = 1 << 0,
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| 16 | OPT_FORCE = 1 << 1,
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| 17 | /* only some decompressors: */
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| 18 | OPT_VERBOSE = 1 << 2,
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[3621] | 19 | OPT_QUIET = 1 << 3,
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| 20 | OPT_DECOMPRESS = 1 << 4,
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| 21 | OPT_TEST = 1 << 5,
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| 22 | SEAMLESS_MAGIC = (1 << 31) * SEAMLESS_COMPRESSION,
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[1765] | 23 | };
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| 24 |
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| 25 | static
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| 26 | int open_to_or_warn(int to_fd, const char *filename, int flags, int mode)
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| 27 | {
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| 28 | int fd = open3_or_warn(filename, flags, mode);
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| 29 | if (fd < 0) {
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| 30 | return 1;
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| 31 | }
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| 32 | xmove_fd(fd, to_fd);
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| 33 | return 0;
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| 34 | }
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| 35 |
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[2725] | 36 | char* FAST_FUNC append_ext(char *filename, const char *expected_ext)
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| 37 | {
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| 38 | return xasprintf("%s.%s", filename, expected_ext);
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| 39 | }
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| 40 |
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| 41 | int FAST_FUNC bbunpack(char **argv,
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[3621] | 42 | IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(transformer_state_t *xstate),
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[2725] | 43 | char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext),
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| 44 | const char *expected_ext
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[1765] | 45 | )
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| 46 | {
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| 47 | struct stat stat_buf;
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[3621] | 48 | IF_DESKTOP(long long) int status = 0;
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[1765] | 49 | char *filename, *new_name;
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| 50 | smallint exitcode = 0;
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[3621] | 51 | transformer_state_t xstate;
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[1765] | 52 |
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| 53 | do {
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| 54 | /* NB: new_name is *maybe* malloc'ed! */
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| 55 | new_name = NULL;
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| 56 | filename = *argv; /* can be NULL - 'streaming' bunzip2 */
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| 57 |
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| 58 | if (filename && LONE_DASH(filename))
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| 59 | filename = NULL;
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| 60 |
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| 61 | /* Open src */
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| 62 | if (filename) {
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[3621] | 63 | if (!(option_mask32 & SEAMLESS_MAGIC)) {
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| 64 | if (stat(filename, &stat_buf) != 0) {
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| 65 | err_name:
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| 66 | bb_simple_perror_msg(filename);
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[1765] | 67 | err:
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[3621] | 68 | exitcode = 1;
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| 69 | goto free_name;
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| 70 | }
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| 71 | if (open_to_or_warn(STDIN_FILENO, filename, O_RDONLY, 0))
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| 72 | goto err;
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| 73 | } else {
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| 74 | /* "clever zcat" with FILE */
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| 75 | /* fail_if_not_compressed because zcat refuses uncompressed input */
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| 76 | int fd = open_zipped(filename, /*fail_if_not_compressed:*/ 1);
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| 77 | if (fd < 0)
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| 78 | goto err_name;
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| 79 | xmove_fd(fd, STDIN_FILENO);
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[1765] | 80 | }
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[3621] | 81 | } else
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| 82 | if (option_mask32 & SEAMLESS_MAGIC) {
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| 83 | /* "clever zcat" on stdin */
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| 84 | if (setup_unzip_on_fd(STDIN_FILENO, /*fail_if_not_compressed*/ 1))
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[1765] | 85 | goto err;
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| 86 | }
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| 87 |
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| 88 | /* Special cases: test, stdout */
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| 89 | if (option_mask32 & (OPT_STDOUT|OPT_TEST)) {
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| 90 | if (option_mask32 & OPT_TEST)
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| 91 | if (open_to_or_warn(STDOUT_FILENO, bb_dev_null, O_WRONLY, 0))
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[3621] | 92 | xfunc_die();
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[1765] | 93 | filename = NULL;
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| 94 | }
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| 95 |
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| 96 | /* Open dst if we are going to unpack to file */
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| 97 | if (filename) {
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[2725] | 98 | new_name = make_new_name(filename, expected_ext);
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[1765] | 99 | if (!new_name) {
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| 100 | bb_error_msg("%s: unknown suffix - ignored", filename);
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| 101 | goto err;
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| 102 | }
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[2725] | 103 |
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| 104 | /* -f: overwrite existing output files */
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| 105 | if (option_mask32 & OPT_FORCE) {
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| 106 | unlink(new_name);
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| 107 | }
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| 108 |
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[1765] | 109 | /* O_EXCL: "real" bunzip2 doesn't overwrite files */
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[2725] | 110 | /* GNU gunzip does not bail out, but goes to next file */
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[1765] | 111 | if (open_to_or_warn(STDOUT_FILENO, new_name, O_WRONLY | O_CREAT | O_EXCL,
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| 112 | stat_buf.st_mode))
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| 113 | goto err;
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| 114 | }
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| 115 |
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| 116 | /* Check that the input is sane */
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[3621] | 117 | if (!(option_mask32 & OPT_FORCE) && isatty(STDIN_FILENO)) {
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[1765] | 118 | bb_error_msg_and_die("compressed data not read from terminal, "
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| 119 | "use -f to force it");
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| 120 | }
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| 121 |
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[3621] | 122 | if (!(option_mask32 & SEAMLESS_MAGIC)) {
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| 123 | init_transformer_state(&xstate);
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| 124 | xstate.signature_skipped = 0;
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| 125 | /*xstate.src_fd = STDIN_FILENO; - already is */
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| 126 | xstate.dst_fd = STDOUT_FILENO;
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| 127 | status = unpacker(&xstate);
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| 128 | if (status < 0)
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| 129 | exitcode = 1;
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| 130 | } else {
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| 131 | if (bb_copyfd_eof(STDIN_FILENO, STDOUT_FILENO) < 0)
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| 132 | /* Disk full, tty closed, etc. No point in continuing */
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| 133 | xfunc_die();
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| 134 | }
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[1765] | 135 |
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[3232] | 136 | if (!(option_mask32 & OPT_STDOUT))
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| 137 | xclose(STDOUT_FILENO); /* with error check! */
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| 138 |
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[1765] | 139 | if (filename) {
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| 140 | char *del = new_name;
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[3621] | 141 |
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[1765] | 142 | if (status >= 0) {
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[3621] | 143 | unsigned new_name_len;
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| 144 |
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[2725] | 145 | /* TODO: restore other things? */
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[3621] | 146 | if (xstate.mtime != 0) {
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[2725] | 147 | struct timeval times[2];
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| 148 |
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[3621] | 149 | times[1].tv_sec = times[0].tv_sec = xstate.mtime;
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[2725] | 150 | times[1].tv_usec = times[0].tv_usec = 0;
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| 151 | /* Note: we closed it first.
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| 152 | * On some systems calling utimes
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| 153 | * then closing resets the mtime
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| 154 | * back to current time. */
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| 155 | utimes(new_name, times); /* ignoring errors */
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| 156 | }
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| 157 |
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[3621] | 158 | if (ENABLE_DESKTOP)
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| 159 | new_name_len = strlen(new_name);
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| 160 | /* Restore source filename (unless tgz -> tar case) */
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| 161 | if (new_name == filename) {
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| 162 | new_name_len = strlen(filename);
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| 163 | filename[new_name_len] = '.';
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| 164 | }
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| 165 | /* Extreme bloat for gunzip compat */
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| 166 | /* Some users do want this info... */
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| 167 | if (ENABLE_DESKTOP && (option_mask32 & OPT_VERBOSE)) {
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| 168 | unsigned percent = status
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| 169 | ? ((uoff_t)stat_buf.st_size * 100u / (unsigned long long)status)
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| 170 | : 0;
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| 171 | fprintf(stderr, "%s: %u%% - replaced with %.*s\n",
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| 172 | filename,
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| 173 | 100u - percent,
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| 174 | new_name_len, new_name
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| 175 | );
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| 176 | }
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| 177 | /* Delete _source_ file */
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[1765] | 178 | del = filename;
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| 179 | }
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| 180 | xunlink(del);
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| 181 | free_name:
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| 182 | if (new_name != filename)
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| 183 | free(new_name);
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| 184 | }
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| 185 | } while (*argv && *++argv);
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| 186 |
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[3232] | 187 | if (option_mask32 & OPT_STDOUT)
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| 188 | xclose(STDOUT_FILENO); /* with error check! */
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| 189 |
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[1765] | 190 | return exitcode;
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| 191 | }
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| 192 |
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[2725] | 193 | #if ENABLE_UNCOMPRESS || ENABLE_BUNZIP2 || ENABLE_UNLZMA || ENABLE_UNXZ
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[1765] | 194 | static
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[2725] | 195 | char* FAST_FUNC make_new_name_generic(char *filename, const char *expected_ext)
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[1765] | 196 | {
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| 197 | char *extension = strrchr(filename, '.');
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| 198 | if (!extension || strcmp(extension + 1, expected_ext) != 0) {
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| 199 | /* Mimic GNU gunzip - "real" bunzip2 tries to */
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| 200 | /* unpack file anyway, to file.out */
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| 201 | return NULL;
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| 202 | }
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| 203 | *extension = '\0';
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| 204 | return filename;
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| 205 | }
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| 206 | #endif
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| 207 |
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| 208 |
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| 209 | /*
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[2725] | 210 | * Uncompress applet for busybox (c) 2002 Glenn McGrath
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[1765] | 211 | *
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[2725] | 212 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[1765] | 213 | */
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[3232] | 214 | //usage:#define uncompress_trivial_usage
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| 215 | //usage: "[-cf] [FILE]..."
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| 216 | //usage:#define uncompress_full_usage "\n\n"
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| 217 | //usage: "Decompress .Z file[s]\n"
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| 218 | //usage: "\n -c Write to stdout"
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| 219 | //usage: "\n -f Overwrite"
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| 220 |
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[3621] | 221 | //config:config UNCOMPRESS
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| 222 | //config: bool "uncompress"
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| 223 | //config: default n # ancient
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| 224 | //config: help
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| 225 | //config: uncompress is used to decompress archives created by compress.
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| 226 | //config: Not much used anymore, replaced by gzip/gunzip.
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| 227 |
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| 228 | //applet:IF_UNCOMPRESS(APPLET(uncompress, BB_DIR_BIN, BB_SUID_DROP))
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| 229 | //kbuild:lib-$(CONFIG_UNCOMPRESS) += bbunzip.o
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[2725] | 230 | #if ENABLE_UNCOMPRESS
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| 231 | int uncompress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 232 | int uncompress_main(int argc UNUSED_PARAM, char **argv)
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[1765] | 233 | {
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| 234 | getopt32(argv, "cf");
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| 235 | argv += optind;
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| 236 |
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[3621] | 237 | return bbunpack(argv, unpack_Z_stream, make_new_name_generic, "Z");
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[1765] | 238 | }
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| 239 | #endif
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| 240 |
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| 241 |
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| 242 | /*
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| 243 | * Gzip implementation for busybox
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| 244 | *
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| 245 | * Based on GNU gzip v1.2.4 Copyright (C) 1992-1993 Jean-loup Gailly.
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| 246 | *
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| 247 | * Originally adjusted for busybox by Sven Rudolph <sr1@inf.tu-dresden.de>
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| 248 | * based on gzip sources
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| 249 | *
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| 250 | * Adjusted further by Erik Andersen <andersen@codepoet.org> to support files as
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| 251 | * well as stdin/stdout, and to generally behave itself wrt command line
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| 252 | * handling.
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| 253 | *
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| 254 | * General cleanup to better adhere to the style guide and make use of standard
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[2725] | 255 | * busybox functions by Glenn McGrath
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[1765] | 256 | *
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[2725] | 257 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[1765] | 258 | *
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| 259 | * gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
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| 260 | * Copyright (C) 1992-1993 Jean-loup Gailly
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| 261 | * The unzip code was written and put in the public domain by Mark Adler.
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| 262 | * Portions of the lzw code are derived from the public domain 'compress'
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| 263 | * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
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| 264 | * Ken Turkowski, Dave Mack and Peter Jannesen.
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| 265 | */
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[3232] | 266 | //usage:#define gunzip_trivial_usage
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| 267 | //usage: "[-cft] [FILE]..."
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| 268 | //usage:#define gunzip_full_usage "\n\n"
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| 269 | //usage: "Decompress FILEs (or stdin)\n"
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| 270 | //usage: "\n -c Write to stdout"
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| 271 | //usage: "\n -f Force"
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| 272 | //usage: "\n -t Test file integrity"
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| 273 | //usage:
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| 274 | //usage:#define gunzip_example_usage
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| 275 | //usage: "$ ls -la /tmp/BusyBox*\n"
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| 276 | //usage: "-rw-rw-r-- 1 andersen andersen 557009 Apr 11 10:55 /tmp/BusyBox-0.43.tar.gz\n"
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| 277 | //usage: "$ gunzip /tmp/BusyBox-0.43.tar.gz\n"
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| 278 | //usage: "$ ls -la /tmp/BusyBox*\n"
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| 279 | //usage: "-rw-rw-r-- 1 andersen andersen 1761280 Apr 14 17:47 /tmp/BusyBox-0.43.tar\n"
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| 280 | //usage:
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| 281 | //usage:#define zcat_trivial_usage
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[3621] | 282 | //usage: "[FILE]..."
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[3232] | 283 | //usage:#define zcat_full_usage "\n\n"
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| 284 | //usage: "Decompress to stdout"
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| 285 |
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[3621] | 286 | //config:config GUNZIP
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| 287 | //config: bool "gunzip"
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| 288 | //config: default y
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| 289 | //config: help
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| 290 | //config: gunzip is used to decompress archives created by gzip.
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| 291 | //config: You can use the `-t' option to test the integrity of
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| 292 | //config: an archive, without decompressing it.
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| 293 | //config:
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| 294 | //config:config FEATURE_GUNZIP_LONG_OPTIONS
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| 295 | //config: bool "Enable long options"
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| 296 | //config: default y
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| 297 | //config: depends on GUNZIP && LONG_OPTS
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| 298 | //config: help
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| 299 | //config: Enable use of long options.
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| 300 |
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| 301 | //applet:IF_GUNZIP(APPLET(gunzip, BB_DIR_BIN, BB_SUID_DROP))
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| 302 | //applet:IF_GUNZIP(APPLET_ODDNAME(zcat, gunzip, BB_DIR_BIN, BB_SUID_DROP, zcat))
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| 303 | //kbuild:lib-$(CONFIG_GZIP) += bbunzip.o
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| 304 | //kbuild:lib-$(CONFIG_GUNZIP) += bbunzip.o
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[1765] | 305 | #if ENABLE_GUNZIP
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| 306 | static
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[2725] | 307 | char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UNUSED_PARAM)
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[1765] | 308 | {
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| 309 | char *extension = strrchr(filename, '.');
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| 310 |
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| 311 | if (!extension)
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| 312 | return NULL;
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| 313 |
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| 314 | extension++;
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| 315 | if (strcmp(extension, "tgz" + 1) == 0
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[2725] | 316 | #if ENABLE_FEATURE_SEAMLESS_Z
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| 317 | || (extension[0] == 'Z' && extension[1] == '\0')
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[1765] | 318 | #endif
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| 319 | ) {
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| 320 | extension[-1] = '\0';
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| 321 | } else if (strcmp(extension, "tgz") == 0) {
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| 322 | filename = xstrdup(filename);
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| 323 | extension = strrchr(filename, '.');
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| 324 | extension[2] = 'a';
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| 325 | extension[3] = 'r';
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| 326 | } else {
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| 327 | return NULL;
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| 328 | }
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| 329 | return filename;
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| 330 | }
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[3621] | 331 |
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| 332 | #if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS
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| 333 | static const char gunzip_longopts[] ALIGN1 =
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| 334 | "stdout\0" No_argument "c"
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| 335 | "to-stdout\0" No_argument "c"
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| 336 | "force\0" No_argument "f"
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| 337 | "test\0" No_argument "t"
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| 338 | "no-name\0" No_argument "n"
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| 339 | ;
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| 340 | #endif
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| 341 |
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[2725] | 342 | /*
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| 343 | * Linux kernel build uses gzip -d -n. We accept and ignore it.
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| 344 | * Man page says:
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| 345 | * -n --no-name
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| 346 | * gzip: do not save the original file name and time stamp.
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| 347 | * (The original name is always saved if the name had to be truncated.)
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| 348 | * gunzip: do not restore the original file name/time even if present
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| 349 | * (remove only the gzip suffix from the compressed file name).
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| 350 | * This option is the default when decompressing.
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| 351 | * -N --name
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| 352 | * gzip: always save the original file name and time stamp (this is the default)
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| 353 | * gunzip: restore the original file name and time stamp if present.
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| 354 | */
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| 355 | int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 356 | int gunzip_main(int argc UNUSED_PARAM, char **argv)
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[1765] | 357 | {
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[3621] | 358 | #if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS
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| 359 | applet_long_options = gunzip_longopts;
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| 360 | #endif
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| 361 | getopt32(argv, "cfvqdtn");
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[1765] | 362 | argv += optind;
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[3621] | 363 |
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| 364 | /* If called as zcat...
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| 365 | * Normally, "zcat" is just "gunzip -c".
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| 366 | * But if seamless magic is enabled, then we are much more clever.
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| 367 | */
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[1765] | 368 | if (applet_name[1] == 'c')
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[3621] | 369 | option_mask32 |= OPT_STDOUT | SEAMLESS_MAGIC;
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[1765] | 370 |
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[3621] | 371 | return bbunpack(argv, unpack_gz_stream, make_new_name_gunzip, /*unused:*/ NULL);
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[1765] | 372 | }
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| 373 | #endif
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| 374 |
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| 375 |
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| 376 | /*
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[2725] | 377 | * Modified for busybox by Glenn McGrath
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| 378 | * Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
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[1765] | 379 | *
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[2725] | 380 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[1765] | 381 | */
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[2725] | 382 | //usage:#define bunzip2_trivial_usage
|
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| 383 | //usage: "[-cf] [FILE]..."
|
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| 384 | //usage:#define bunzip2_full_usage "\n\n"
|
---|
| 385 | //usage: "Decompress FILEs (or stdin)\n"
|
---|
| 386 | //usage: "\n -c Write to stdout"
|
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| 387 | //usage: "\n -f Force"
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| 388 | //usage:#define bzcat_trivial_usage
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[3621] | 389 | //usage: "[FILE]..."
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[2725] | 390 | //usage:#define bzcat_full_usage "\n\n"
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| 391 | //usage: "Decompress to stdout"
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[3621] | 392 |
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| 393 | //config:config BUNZIP2
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| 394 | //config: bool "bunzip2"
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| 395 | //config: default y
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| 396 | //config: help
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| 397 | //config: bunzip2 is a compression utility using the Burrows-Wheeler block
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| 398 | //config: sorting text compression algorithm, and Huffman coding. Compression
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| 399 | //config: is generally considerably better than that achieved by more
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| 400 | //config: conventional LZ77/LZ78-based compressors, and approaches the
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| 401 | //config: performance of the PPM family of statistical compressors.
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| 402 | //config:
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| 403 | //config: Unless you have a specific application which requires bunzip2, you
|
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| 404 | //config: should probably say N here.
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| 405 |
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[3232] | 406 | //applet:IF_BUNZIP2(APPLET(bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP))
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| 407 | //applet:IF_BUNZIP2(APPLET_ODDNAME(bzcat, bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP, bzcat))
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[3621] | 408 | //kbuild:lib-$(CONFIG_BZIP2) += bbunzip.o
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| 409 | //kbuild:lib-$(CONFIG_BUNZIP2) += bbunzip.o
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[2725] | 410 | #if ENABLE_BUNZIP2
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| 411 | int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 412 | int bunzip2_main(int argc UNUSED_PARAM, char **argv)
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[1765] | 413 | {
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[3621] | 414 | getopt32(argv, "cfvqdt");
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[1765] | 415 | argv += optind;
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[2725] | 416 | if (applet_name[2] == 'c') /* bzcat */
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[1765] | 417 | option_mask32 |= OPT_STDOUT;
|
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| 418 |
|
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[3621] | 419 | return bbunpack(argv, unpack_bz2_stream, make_new_name_generic, "bz2");
|
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[1765] | 420 | }
|
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| 421 | #endif
|
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| 422 |
|
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| 423 |
|
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| 424 | /*
|
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[2725] | 425 | * Small lzma deflate implementation.
|
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| 426 | * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org>
|
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[1765] | 427 | *
|
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[2725] | 428 | * Based on bunzip.c from busybox
|
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| 429 | *
|
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| 430 | * Licensed under GPLv2, see file LICENSE in this source tree.
|
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[1765] | 431 | */
|
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[3232] | 432 | //usage:#define unlzma_trivial_usage
|
---|
| 433 | //usage: "[-cf] [FILE]..."
|
---|
| 434 | //usage:#define unlzma_full_usage "\n\n"
|
---|
| 435 | //usage: "Decompress FILE (or stdin)\n"
|
---|
| 436 | //usage: "\n -c Write to stdout"
|
---|
| 437 | //usage: "\n -f Force"
|
---|
| 438 | //usage:
|
---|
| 439 | //usage:#define lzma_trivial_usage
|
---|
| 440 | //usage: "-d [-cf] [FILE]..."
|
---|
| 441 | //usage:#define lzma_full_usage "\n\n"
|
---|
| 442 | //usage: "Decompress FILE (or stdin)\n"
|
---|
| 443 | //usage: "\n -d Decompress"
|
---|
| 444 | //usage: "\n -c Write to stdout"
|
---|
| 445 | //usage: "\n -f Force"
|
---|
| 446 | //usage:
|
---|
| 447 | //usage:#define lzcat_trivial_usage
|
---|
[3621] | 448 | //usage: "[FILE]..."
|
---|
[3232] | 449 | //usage:#define lzcat_full_usage "\n\n"
|
---|
| 450 | //usage: "Decompress to stdout"
|
---|
| 451 | //usage:
|
---|
| 452 | //usage:#define unxz_trivial_usage
|
---|
| 453 | //usage: "[-cf] [FILE]..."
|
---|
| 454 | //usage:#define unxz_full_usage "\n\n"
|
---|
| 455 | //usage: "Decompress FILE (or stdin)\n"
|
---|
| 456 | //usage: "\n -c Write to stdout"
|
---|
| 457 | //usage: "\n -f Force"
|
---|
| 458 | //usage:
|
---|
| 459 | //usage:#define xz_trivial_usage
|
---|
| 460 | //usage: "-d [-cf] [FILE]..."
|
---|
| 461 | //usage:#define xz_full_usage "\n\n"
|
---|
| 462 | //usage: "Decompress FILE (or stdin)\n"
|
---|
| 463 | //usage: "\n -d Decompress"
|
---|
| 464 | //usage: "\n -c Write to stdout"
|
---|
| 465 | //usage: "\n -f Force"
|
---|
| 466 | //usage:
|
---|
| 467 | //usage:#define xzcat_trivial_usage
|
---|
[3621] | 468 | //usage: "[FILE]..."
|
---|
[3232] | 469 | //usage:#define xzcat_full_usage "\n\n"
|
---|
| 470 | //usage: "Decompress to stdout"
|
---|
| 471 |
|
---|
[3621] | 472 | //config:config UNLZMA
|
---|
| 473 | //config: bool "unlzma"
|
---|
| 474 | //config: default y
|
---|
| 475 | //config: help
|
---|
| 476 | //config: unlzma is a compression utility using the Lempel-Ziv-Markov chain
|
---|
| 477 | //config: compression algorithm, and range coding. Compression
|
---|
| 478 | //config: is generally considerably better than that achieved by the bzip2
|
---|
| 479 | //config: compressors.
|
---|
| 480 | //config:
|
---|
| 481 | //config: The BusyBox unlzma applet is limited to decompression only.
|
---|
| 482 | //config: On an x86 system, this applet adds about 4K.
|
---|
| 483 | //config:
|
---|
| 484 | //config:config FEATURE_LZMA_FAST
|
---|
| 485 | //config: bool "Optimize unlzma for speed"
|
---|
| 486 | //config: default n
|
---|
| 487 | //config: depends on UNLZMA
|
---|
| 488 | //config: help
|
---|
| 489 | //config: This option reduces decompression time by about 25% at the cost of
|
---|
| 490 | //config: a 1K bigger binary.
|
---|
| 491 | //config:
|
---|
| 492 | //config:config LZMA
|
---|
| 493 | //config: bool "Provide lzma alias which supports only unpacking"
|
---|
| 494 | //config: default y
|
---|
| 495 | //config: depends on UNLZMA
|
---|
| 496 | //config: help
|
---|
| 497 | //config: Enable this option if you want commands like "lzma -d" to work.
|
---|
| 498 | //config: IOW: you'll get lzma applet, but it will always require -d option.
|
---|
| 499 |
|
---|
| 500 | //applet:IF_UNLZMA(APPLET(unlzma, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
| 501 | //applet:IF_UNLZMA(APPLET_ODDNAME(lzcat, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzcat))
|
---|
| 502 | //applet:IF_LZMA(APPLET_ODDNAME(lzma, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzma))
|
---|
| 503 | //kbuild:lib-$(CONFIG_UNLZMA) += bbunzip.o
|
---|
[2725] | 504 | #if ENABLE_UNLZMA
|
---|
| 505 | int unlzma_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 506 | int unlzma_main(int argc UNUSED_PARAM, char **argv)
|
---|
| 507 | {
|
---|
[3621] | 508 | IF_LZMA(int opts =) getopt32(argv, "cfvqdt");
|
---|
[2725] | 509 | # if ENABLE_LZMA
|
---|
| 510 | /* lzma without -d or -t? */
|
---|
| 511 | if (applet_name[2] == 'm' && !(opts & (OPT_DECOMPRESS|OPT_TEST)))
|
---|
| 512 | bb_show_usage();
|
---|
| 513 | # endif
|
---|
| 514 | /* lzcat? */
|
---|
| 515 | if (applet_name[2] == 'c')
|
---|
| 516 | option_mask32 |= OPT_STDOUT;
|
---|
[1765] | 517 |
|
---|
[2725] | 518 | argv += optind;
|
---|
[3621] | 519 | return bbunpack(argv, unpack_lzma_stream, make_new_name_generic, "lzma");
|
---|
[2725] | 520 | }
|
---|
| 521 | #endif
|
---|
| 522 |
|
---|
| 523 |
|
---|
[3621] | 524 | //config:config UNXZ
|
---|
| 525 | //config: bool "unxz"
|
---|
| 526 | //config: default y
|
---|
| 527 | //config: help
|
---|
| 528 | //config: unxz is a unlzma successor.
|
---|
| 529 | //config:
|
---|
| 530 | //config:config XZ
|
---|
| 531 | //config: bool "Provide xz alias which supports only unpacking"
|
---|
| 532 | //config: default y
|
---|
| 533 | //config: depends on UNXZ
|
---|
| 534 | //config: help
|
---|
| 535 | //config: Enable this option if you want commands like "xz -d" to work.
|
---|
| 536 | //config: IOW: you'll get xz applet, but it will always require -d option.
|
---|
| 537 |
|
---|
| 538 | //applet:IF_UNXZ(APPLET(unxz, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
| 539 | //applet:IF_UNXZ(APPLET_ODDNAME(xzcat, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xzcat))
|
---|
| 540 | //applet:IF_XZ(APPLET_ODDNAME(xz, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xz))
|
---|
| 541 | //kbuild:lib-$(CONFIG_UNXZ) += bbunzip.o
|
---|
[2725] | 542 | #if ENABLE_UNXZ
|
---|
| 543 | int unxz_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
| 544 | int unxz_main(int argc UNUSED_PARAM, char **argv)
|
---|
| 545 | {
|
---|
[3621] | 546 | IF_XZ(int opts =) getopt32(argv, "cfvqdt");
|
---|
[2725] | 547 | # if ENABLE_XZ
|
---|
| 548 | /* xz without -d or -t? */
|
---|
| 549 | if (applet_name[2] == '\0' && !(opts & (OPT_DECOMPRESS|OPT_TEST)))
|
---|
| 550 | bb_show_usage();
|
---|
| 551 | # endif
|
---|
| 552 | /* xzcat? */
|
---|
| 553 | if (applet_name[2] == 'c')
|
---|
| 554 | option_mask32 |= OPT_STDOUT;
|
---|
[1765] | 555 |
|
---|
| 556 | argv += optind;
|
---|
[3621] | 557 | return bbunpack(argv, unpack_xz_stream, make_new_name_generic, "xz");
|
---|
[1765] | 558 | }
|
---|
| 559 | #endif
|
---|