[821] | 1 | /* vi: set sw=4 ts=4: */
|
---|
| 2 | /*
|
---|
| 3 | * Mini unzip implementation for busybox
|
---|
| 4 | *
|
---|
| 5 | * Copyright (C) 2004 by Ed Clark
|
---|
| 6 | *
|
---|
| 7 | * Loosely based on original busybox unzip applet by Laurence Anderson.
|
---|
| 8 | * All options and features should work in this version.
|
---|
| 9 | *
|
---|
[2725] | 10 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
[821] | 11 | */
|
---|
| 12 | /* For reference see
|
---|
| 13 | * http://www.pkware.com/company/standards/appnote/
|
---|
| 14 | * http://www.info-zip.org/pub/infozip/doc/appnote-iz-latest.zip
|
---|
[3621] | 15 | *
|
---|
| 16 | * TODO
|
---|
[821] | 17 | * Zip64 + other methods
|
---|
| 18 | */
|
---|
| 19 |
|
---|
[3621] | 20 | //config:config UNZIP
|
---|
| 21 | //config: bool "unzip"
|
---|
| 22 | //config: default y
|
---|
| 23 | //config: help
|
---|
| 24 | //config: unzip will list or extract files from a ZIP archive,
|
---|
| 25 | //config: commonly found on DOS/WIN systems. The default behavior
|
---|
| 26 | //config: (with no options) is to extract the archive into the
|
---|
| 27 | //config: current directory. Use the `-d' option to extract to a
|
---|
| 28 | //config: directory of your choice.
|
---|
| 29 |
|
---|
| 30 | //applet:IF_UNZIP(APPLET(unzip, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
| 31 | //kbuild:lib-$(CONFIG_UNZIP) += unzip.o
|
---|
| 32 |
|
---|
[3232] | 33 | //usage:#define unzip_trivial_usage
|
---|
| 34 | //usage: "[-lnopq] FILE[.zip] [FILE]... [-x FILE...] [-d DIR]"
|
---|
| 35 | //usage:#define unzip_full_usage "\n\n"
|
---|
| 36 | //usage: "Extract FILEs from ZIP archive\n"
|
---|
| 37 | //usage: "\n -l List contents (with -q for short form)"
|
---|
| 38 | //usage: "\n -n Never overwrite files (default: ask)"
|
---|
| 39 | //usage: "\n -o Overwrite"
|
---|
| 40 | //usage: "\n -p Print to stdout"
|
---|
| 41 | //usage: "\n -q Quiet"
|
---|
| 42 | //usage: "\n -x FILE Exclude FILEs"
|
---|
| 43 | //usage: "\n -d DIR Extract into DIR"
|
---|
| 44 |
|
---|
[1765] | 45 | #include "libbb.h"
|
---|
[3232] | 46 | #include "bb_archive.h"
|
---|
[821] | 47 |
|
---|
[3621] | 48 | #if 0
|
---|
| 49 | # define dbg(...) bb_error_msg(__VA_ARGS__)
|
---|
| 50 | #else
|
---|
| 51 | # define dbg(...) ((void)0)
|
---|
| 52 | #endif
|
---|
| 53 |
|
---|
[2725] | 54 | enum {
|
---|
| 55 | #if BB_BIG_ENDIAN
|
---|
| 56 | ZIP_FILEHEADER_MAGIC = 0x504b0304,
|
---|
| 57 | ZIP_CDF_MAGIC = 0x504b0102, /* central directory's file header */
|
---|
| 58 | ZIP_CDE_MAGIC = 0x504b0506, /* "end of central directory" record */
|
---|
| 59 | ZIP_DD_MAGIC = 0x504b0708,
|
---|
| 60 | #else
|
---|
| 61 | ZIP_FILEHEADER_MAGIC = 0x04034b50,
|
---|
| 62 | ZIP_CDF_MAGIC = 0x02014b50,
|
---|
| 63 | ZIP_CDE_MAGIC = 0x06054b50,
|
---|
| 64 | ZIP_DD_MAGIC = 0x08074b50,
|
---|
| 65 | #endif
|
---|
| 66 | };
|
---|
[821] | 67 |
|
---|
[2725] | 68 | #define ZIP_HEADER_LEN 26
|
---|
| 69 |
|
---|
[821] | 70 | typedef union {
|
---|
[2725] | 71 | uint8_t raw[ZIP_HEADER_LEN];
|
---|
[821] | 72 | struct {
|
---|
[2725] | 73 | uint16_t version; /* 0-1 */
|
---|
| 74 | uint16_t zip_flags; /* 2-3 */
|
---|
| 75 | uint16_t method; /* 4-5 */
|
---|
| 76 | uint16_t modtime; /* 6-7 */
|
---|
| 77 | uint16_t moddate; /* 8-9 */
|
---|
| 78 | uint32_t crc32 PACKED; /* 10-13 */
|
---|
| 79 | uint32_t cmpsize PACKED; /* 14-17 */
|
---|
| 80 | uint32_t ucmpsize PACKED; /* 18-21 */
|
---|
| 81 | uint16_t filename_len; /* 22-23 */
|
---|
| 82 | uint16_t extra_len; /* 24-25 */
|
---|
| 83 | } formatted PACKED;
|
---|
| 84 | } zip_header_t; /* PACKED - gcc 4.2.1 doesn't like it (spews warning) */
|
---|
[821] | 85 |
|
---|
[2725] | 86 | /* Check the offset of the last element, not the length. This leniency
|
---|
| 87 | * allows for poor packing, whereby the overall struct may be too long,
|
---|
| 88 | * even though the elements are all in the right place.
|
---|
| 89 | */
|
---|
| 90 | struct BUG_zip_header_must_be_26_bytes {
|
---|
| 91 | char BUG_zip_header_must_be_26_bytes[
|
---|
| 92 | offsetof(zip_header_t, formatted.extra_len) + 2
|
---|
| 93 | == ZIP_HEADER_LEN ? 1 : -1];
|
---|
| 94 | };
|
---|
| 95 |
|
---|
| 96 | #define FIX_ENDIANNESS_ZIP(zip_header) do { \
|
---|
| 97 | (zip_header).formatted.version = SWAP_LE16((zip_header).formatted.version ); \
|
---|
| 98 | (zip_header).formatted.method = SWAP_LE16((zip_header).formatted.method ); \
|
---|
| 99 | (zip_header).formatted.modtime = SWAP_LE16((zip_header).formatted.modtime ); \
|
---|
| 100 | (zip_header).formatted.moddate = SWAP_LE16((zip_header).formatted.moddate ); \
|
---|
| 101 | (zip_header).formatted.crc32 = SWAP_LE32((zip_header).formatted.crc32 ); \
|
---|
| 102 | (zip_header).formatted.cmpsize = SWAP_LE32((zip_header).formatted.cmpsize ); \
|
---|
| 103 | (zip_header).formatted.ucmpsize = SWAP_LE32((zip_header).formatted.ucmpsize ); \
|
---|
| 104 | (zip_header).formatted.filename_len = SWAP_LE16((zip_header).formatted.filename_len); \
|
---|
| 105 | (zip_header).formatted.extra_len = SWAP_LE16((zip_header).formatted.extra_len ); \
|
---|
| 106 | } while (0)
|
---|
| 107 |
|
---|
| 108 | #define CDF_HEADER_LEN 42
|
---|
| 109 |
|
---|
| 110 | typedef union {
|
---|
| 111 | uint8_t raw[CDF_HEADER_LEN];
|
---|
| 112 | struct {
|
---|
| 113 | /* uint32_t signature; 50 4b 01 02 */
|
---|
| 114 | uint16_t version_made_by; /* 0-1 */
|
---|
| 115 | uint16_t version_needed; /* 2-3 */
|
---|
| 116 | uint16_t cdf_flags; /* 4-5 */
|
---|
| 117 | uint16_t method; /* 6-7 */
|
---|
| 118 | uint16_t mtime; /* 8-9 */
|
---|
| 119 | uint16_t mdate; /* 10-11 */
|
---|
| 120 | uint32_t crc32; /* 12-15 */
|
---|
| 121 | uint32_t cmpsize; /* 16-19 */
|
---|
| 122 | uint32_t ucmpsize; /* 20-23 */
|
---|
| 123 | uint16_t file_name_length; /* 24-25 */
|
---|
| 124 | uint16_t extra_field_length; /* 26-27 */
|
---|
| 125 | uint16_t file_comment_length; /* 28-29 */
|
---|
| 126 | uint16_t disk_number_start; /* 30-31 */
|
---|
| 127 | uint16_t internal_file_attributes; /* 32-33 */
|
---|
| 128 | uint32_t external_file_attributes PACKED; /* 34-37 */
|
---|
| 129 | uint32_t relative_offset_of_local_header PACKED; /* 38-41 */
|
---|
| 130 | } formatted PACKED;
|
---|
| 131 | } cdf_header_t;
|
---|
| 132 |
|
---|
| 133 | struct BUG_cdf_header_must_be_42_bytes {
|
---|
| 134 | char BUG_cdf_header_must_be_42_bytes[
|
---|
| 135 | offsetof(cdf_header_t, formatted.relative_offset_of_local_header) + 4
|
---|
| 136 | == CDF_HEADER_LEN ? 1 : -1];
|
---|
| 137 | };
|
---|
| 138 |
|
---|
| 139 | #define FIX_ENDIANNESS_CDF(cdf_header) do { \
|
---|
| 140 | (cdf_header).formatted.crc32 = SWAP_LE32((cdf_header).formatted.crc32 ); \
|
---|
| 141 | (cdf_header).formatted.cmpsize = SWAP_LE32((cdf_header).formatted.cmpsize ); \
|
---|
| 142 | (cdf_header).formatted.ucmpsize = SWAP_LE32((cdf_header).formatted.ucmpsize ); \
|
---|
| 143 | (cdf_header).formatted.file_name_length = SWAP_LE16((cdf_header).formatted.file_name_length); \
|
---|
| 144 | (cdf_header).formatted.extra_field_length = SWAP_LE16((cdf_header).formatted.extra_field_length); \
|
---|
| 145 | (cdf_header).formatted.file_comment_length = SWAP_LE16((cdf_header).formatted.file_comment_length); \
|
---|
| 146 | IF_DESKTOP( \
|
---|
| 147 | (cdf_header).formatted.version_made_by = SWAP_LE16((cdf_header).formatted.version_made_by); \
|
---|
| 148 | (cdf_header).formatted.external_file_attributes = SWAP_LE32((cdf_header).formatted.external_file_attributes); \
|
---|
| 149 | ) \
|
---|
| 150 | } while (0)
|
---|
| 151 |
|
---|
| 152 | #define CDE_HEADER_LEN 16
|
---|
| 153 |
|
---|
| 154 | typedef union {
|
---|
| 155 | uint8_t raw[CDE_HEADER_LEN];
|
---|
| 156 | struct {
|
---|
| 157 | /* uint32_t signature; 50 4b 05 06 */
|
---|
| 158 | uint16_t this_disk_no;
|
---|
| 159 | uint16_t disk_with_cdf_no;
|
---|
| 160 | uint16_t cdf_entries_on_this_disk;
|
---|
| 161 | uint16_t cdf_entries_total;
|
---|
| 162 | uint32_t cdf_size;
|
---|
| 163 | uint32_t cdf_offset;
|
---|
| 164 | /* uint16_t file_comment_length; */
|
---|
| 165 | /* .ZIP file comment (variable size) */
|
---|
| 166 | } formatted PACKED;
|
---|
| 167 | } cde_header_t;
|
---|
| 168 |
|
---|
| 169 | struct BUG_cde_header_must_be_16_bytes {
|
---|
| 170 | char BUG_cde_header_must_be_16_bytes[
|
---|
| 171 | sizeof(cde_header_t) == CDE_HEADER_LEN ? 1 : -1];
|
---|
| 172 | };
|
---|
| 173 |
|
---|
| 174 | #define FIX_ENDIANNESS_CDE(cde_header) do { \
|
---|
| 175 | (cde_header).formatted.cdf_offset = SWAP_LE32((cde_header).formatted.cdf_offset); \
|
---|
| 176 | } while (0)
|
---|
| 177 |
|
---|
| 178 | enum { zip_fd = 3 };
|
---|
| 179 |
|
---|
| 180 |
|
---|
| 181 | #if ENABLE_DESKTOP
|
---|
| 182 |
|
---|
[3621] | 183 | /* Seen in the wild:
|
---|
| 184 | * Self-extracting PRO2K3XP_32.exe contains 19078464 byte zip archive,
|
---|
| 185 | * where CDE was nearly 48 kbytes before EOF.
|
---|
| 186 | * (Surprisingly, it also apparently has *another* CDE structure
|
---|
| 187 | * closer to the end, with bogus cdf_offset).
|
---|
| 188 | * To make extraction work, bumped PEEK_FROM_END from 16k to 64k.
|
---|
| 189 | */
|
---|
| 190 | #define PEEK_FROM_END (64*1024)
|
---|
[2725] | 191 |
|
---|
[3621] | 192 | /* This value means that we failed to find CDF */
|
---|
| 193 | #define BAD_CDF_OFFSET ((uint32_t)0xffffffff)
|
---|
| 194 |
|
---|
[2725] | 195 | /* NB: does not preserve file position! */
|
---|
| 196 | static uint32_t find_cdf_offset(void)
|
---|
[821] | 197 | {
|
---|
[2725] | 198 | cde_header_t cde_header;
|
---|
| 199 | unsigned char *p;
|
---|
| 200 | off_t end;
|
---|
| 201 | unsigned char *buf = xzalloc(PEEK_FROM_END);
|
---|
[3621] | 202 | uint32_t found;
|
---|
[2725] | 203 |
|
---|
| 204 | end = xlseek(zip_fd, 0, SEEK_END);
|
---|
| 205 | end -= PEEK_FROM_END;
|
---|
| 206 | if (end < 0)
|
---|
| 207 | end = 0;
|
---|
[3621] | 208 | dbg("Looking for cdf_offset starting from 0x%"OFF_FMT"x", end);
|
---|
| 209 | xlseek(zip_fd, end, SEEK_SET);
|
---|
[2725] | 210 | full_read(zip_fd, buf, PEEK_FROM_END);
|
---|
| 211 |
|
---|
[3621] | 212 | found = BAD_CDF_OFFSET;
|
---|
[2725] | 213 | p = buf;
|
---|
| 214 | while (p <= buf + PEEK_FROM_END - CDE_HEADER_LEN - 4) {
|
---|
| 215 | if (*p != 'P') {
|
---|
| 216 | p++;
|
---|
| 217 | continue;
|
---|
| 218 | }
|
---|
| 219 | if (*++p != 'K')
|
---|
| 220 | continue;
|
---|
| 221 | if (*++p != 5)
|
---|
| 222 | continue;
|
---|
| 223 | if (*++p != 6)
|
---|
| 224 | continue;
|
---|
| 225 | /* we found CDE! */
|
---|
| 226 | memcpy(cde_header.raw, p + 1, CDE_HEADER_LEN);
|
---|
| 227 | FIX_ENDIANNESS_CDE(cde_header);
|
---|
[3621] | 228 | /*
|
---|
| 229 | * I've seen .ZIP files with seemingly valid CDEs
|
---|
| 230 | * where cdf_offset points past EOF - ??
|
---|
| 231 | * This check ignores such CDEs:
|
---|
| 232 | */
|
---|
| 233 | if (cde_header.formatted.cdf_offset < end + (p - buf)) {
|
---|
| 234 | found = cde_header.formatted.cdf_offset;
|
---|
| 235 | dbg("Possible cdf_offset:0x%x at 0x%"OFF_FMT"x",
|
---|
| 236 | (unsigned)found, end + (p-3 - buf));
|
---|
| 237 | dbg(" cdf_offset+cdf_size:0x%x",
|
---|
| 238 | (unsigned)(found + SWAP_LE32(cde_header.formatted.cdf_size)));
|
---|
| 239 | /*
|
---|
| 240 | * We do not "break" here because only the last CDE is valid.
|
---|
| 241 | * I've seen a .zip archive which contained a .zip file,
|
---|
| 242 | * uncompressed, and taking the first CDE was using
|
---|
| 243 | * the CDE inside that file!
|
---|
| 244 | */
|
---|
| 245 | }
|
---|
[821] | 246 | }
|
---|
[3621] | 247 | free(buf);
|
---|
| 248 | dbg("Found cdf_offset:0x%x", (unsigned)found);
|
---|
| 249 | return found;
|
---|
[2725] | 250 | };
|
---|
| 251 |
|
---|
| 252 | static uint32_t read_next_cdf(uint32_t cdf_offset, cdf_header_t *cdf_ptr)
|
---|
| 253 | {
|
---|
| 254 | off_t org;
|
---|
| 255 |
|
---|
| 256 | org = xlseek(zip_fd, 0, SEEK_CUR);
|
---|
| 257 |
|
---|
| 258 | if (!cdf_offset)
|
---|
| 259 | cdf_offset = find_cdf_offset();
|
---|
| 260 |
|
---|
[3621] | 261 | if (cdf_offset != BAD_CDF_OFFSET) {
|
---|
| 262 | dbg("Reading CDF at 0x%x", (unsigned)cdf_offset);
|
---|
| 263 | xlseek(zip_fd, cdf_offset + 4, SEEK_SET);
|
---|
| 264 | xread(zip_fd, cdf_ptr->raw, CDF_HEADER_LEN);
|
---|
| 265 | FIX_ENDIANNESS_CDF(*cdf_ptr);
|
---|
| 266 | dbg(" file_name_length:%u extra_field_length:%u file_comment_length:%u",
|
---|
| 267 | (unsigned)cdf_ptr->formatted.file_name_length,
|
---|
| 268 | (unsigned)cdf_ptr->formatted.extra_field_length,
|
---|
| 269 | (unsigned)cdf_ptr->formatted.file_comment_length
|
---|
| 270 | );
|
---|
| 271 | cdf_offset += 4 + CDF_HEADER_LEN
|
---|
| 272 | + cdf_ptr->formatted.file_name_length
|
---|
| 273 | + cdf_ptr->formatted.extra_field_length
|
---|
| 274 | + cdf_ptr->formatted.file_comment_length;
|
---|
| 275 | }
|
---|
[2725] | 276 |
|
---|
[3621] | 277 | dbg("Returning file position to 0x%"OFF_FMT"x", org);
|
---|
[2725] | 278 | xlseek(zip_fd, org, SEEK_SET);
|
---|
| 279 | return cdf_offset;
|
---|
| 280 | };
|
---|
| 281 | #endif
|
---|
| 282 |
|
---|
| 283 | static void unzip_skip(off_t skip)
|
---|
| 284 | {
|
---|
[3621] | 285 | if (skip != 0)
|
---|
| 286 | if (lseek(zip_fd, skip, SEEK_CUR) == (off_t)-1)
|
---|
| 287 | bb_copyfd_exact_size(zip_fd, -1, skip);
|
---|
[821] | 288 | }
|
---|
| 289 |
|
---|
[2725] | 290 | static void unzip_create_leading_dirs(const char *fn)
|
---|
[821] | 291 | {
|
---|
| 292 | /* Create all leading directories */
|
---|
[1765] | 293 | char *name = xstrdup(fn);
|
---|
[821] | 294 | if (bb_make_directory(dirname(name), 0777, FILEUTILS_RECUR)) {
|
---|
[3232] | 295 | xfunc_die(); /* bb_make_directory is noisy */
|
---|
[821] | 296 | }
|
---|
| 297 | free(name);
|
---|
| 298 | }
|
---|
| 299 |
|
---|
[2725] | 300 | static void unzip_extract(zip_header_t *zip_header, int dst_fd)
|
---|
[821] | 301 | {
|
---|
[1765] | 302 | if (zip_header->formatted.method == 0) {
|
---|
[821] | 303 | /* Method 0 - stored (not compressed) */
|
---|
[1765] | 304 | off_t size = zip_header->formatted.ucmpsize;
|
---|
| 305 | if (size)
|
---|
[2725] | 306 | bb_copyfd_exact_size(zip_fd, dst_fd, size);
|
---|
[821] | 307 | } else {
|
---|
| 308 | /* Method 8 - inflate */
|
---|
[3621] | 309 | transformer_state_t xstate;
|
---|
| 310 | init_transformer_state(&xstate);
|
---|
| 311 | xstate.bytes_in = zip_header->formatted.cmpsize;
|
---|
| 312 | xstate.src_fd = zip_fd;
|
---|
| 313 | xstate.dst_fd = dst_fd;
|
---|
| 314 | if (inflate_unzip(&xstate) < 0)
|
---|
[2725] | 315 | bb_error_msg_and_die("inflate error");
|
---|
[821] | 316 | /* Validate decompression - crc */
|
---|
[3621] | 317 | if (zip_header->formatted.crc32 != (xstate.crc32 ^ 0xffffffffL)) {
|
---|
[2725] | 318 | bb_error_msg_and_die("crc error");
|
---|
[821] | 319 | }
|
---|
| 320 | /* Validate decompression - size */
|
---|
[3621] | 321 | if (zip_header->formatted.ucmpsize != xstate.bytes_out) {
|
---|
[2725] | 322 | /* Don't die. Who knows, maybe len calculation
|
---|
| 323 | * was botched somewhere. After all, crc matched! */
|
---|
| 324 | bb_error_msg("bad length");
|
---|
[821] | 325 | }
|
---|
| 326 | }
|
---|
| 327 | }
|
---|
| 328 |
|
---|
[3621] | 329 | static void my_fgets80(char *buf80)
|
---|
| 330 | {
|
---|
| 331 | fflush_all();
|
---|
| 332 | if (!fgets(buf80, 80, stdin)) {
|
---|
| 333 | bb_perror_msg_and_die("can't read standard input");
|
---|
| 334 | }
|
---|
| 335 | }
|
---|
| 336 |
|
---|
[2725] | 337 | int unzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
[821] | 338 | int unzip_main(int argc, char **argv)
|
---|
| 339 | {
|
---|
[2725] | 340 | enum { O_PROMPT, O_NEVER, O_ALWAYS };
|
---|
| 341 |
|
---|
[821] | 342 | zip_header_t zip_header;
|
---|
[2725] | 343 | smallint quiet = 0;
|
---|
| 344 | IF_NOT_DESKTOP(const) smallint verbose = 0;
|
---|
| 345 | smallint listing = 0;
|
---|
| 346 | smallint overwrite = O_PROMPT;
|
---|
[3232] | 347 | smallint x_opt_seen;
|
---|
[2725] | 348 | #if ENABLE_DESKTOP
|
---|
| 349 | uint32_t cdf_offset;
|
---|
| 350 | #endif
|
---|
| 351 | unsigned long total_usize;
|
---|
| 352 | unsigned long total_size;
|
---|
| 353 | unsigned total_entries;
|
---|
| 354 | int dst_fd = -1;
|
---|
| 355 | char *src_fn = NULL;
|
---|
| 356 | char *dst_fn = NULL;
|
---|
[821] | 357 | llist_t *zaccept = NULL;
|
---|
| 358 | llist_t *zreject = NULL;
|
---|
| 359 | char *base_dir = NULL;
|
---|
[2725] | 360 | int i, opt;
|
---|
[3621] | 361 | char key_buf[80]; /* must match size used by my_fgets80 */
|
---|
[821] | 362 | struct stat stat_buf;
|
---|
| 363 |
|
---|
[2725] | 364 | /* -q, -l and -v: UnZip 5.52 of 28 February 2005, by Info-ZIP:
|
---|
| 365 | *
|
---|
| 366 | * # /usr/bin/unzip -qq -v decompress_unlzma.i.zip
|
---|
| 367 | * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i
|
---|
| 368 | * # /usr/bin/unzip -q -v decompress_unlzma.i.zip
|
---|
| 369 | * Length Method Size Ratio Date Time CRC-32 Name
|
---|
| 370 | * -------- ------ ------- ----- ---- ---- ------ ----
|
---|
| 371 | * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i
|
---|
| 372 | * -------- ------- --- -------
|
---|
| 373 | * 204372 35278 83% 1 file
|
---|
| 374 | * # /usr/bin/unzip -v decompress_unlzma.i.zip
|
---|
| 375 | * Archive: decompress_unlzma.i.zip
|
---|
| 376 | * Length Method Size Ratio Date Time CRC-32 Name
|
---|
| 377 | * -------- ------ ------- ----- ---- ---- ------ ----
|
---|
| 378 | * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i
|
---|
| 379 | * -------- ------- --- -------
|
---|
| 380 | * 204372 35278 83% 1 file
|
---|
| 381 | * # unzip -v decompress_unlzma.i.zip
|
---|
| 382 | * Archive: decompress_unlzma.i.zip
|
---|
| 383 | * Length Date Time Name
|
---|
| 384 | * -------- ---- ---- ----
|
---|
| 385 | * 204372 09-06-09 14:23 decompress_unlzma.i
|
---|
| 386 | * -------- -------
|
---|
| 387 | * 204372 1 files
|
---|
| 388 | * # /usr/bin/unzip -l -qq decompress_unlzma.i.zip
|
---|
| 389 | * 204372 09-06-09 14:23 decompress_unlzma.i
|
---|
| 390 | * # /usr/bin/unzip -l -q decompress_unlzma.i.zip
|
---|
| 391 | * Length Date Time Name
|
---|
| 392 | * -------- ---- ---- ----
|
---|
| 393 | * 204372 09-06-09 14:23 decompress_unlzma.i
|
---|
| 394 | * -------- -------
|
---|
| 395 | * 204372 1 file
|
---|
| 396 | * # /usr/bin/unzip -l decompress_unlzma.i.zip
|
---|
| 397 | * Archive: decompress_unlzma.i.zip
|
---|
| 398 | * Length Date Time Name
|
---|
| 399 | * -------- ---- ---- ----
|
---|
| 400 | * 204372 09-06-09 14:23 decompress_unlzma.i
|
---|
| 401 | * -------- -------
|
---|
| 402 | * 204372 1 file
|
---|
| 403 | */
|
---|
| 404 |
|
---|
[3232] | 405 | x_opt_seen = 0;
|
---|
[2725] | 406 | /* '-' makes getopt return 1 for non-options */
|
---|
| 407 | while ((opt = getopt(argc, argv, "-d:lnopqxv")) != -1) {
|
---|
[3232] | 408 | switch (opt) {
|
---|
| 409 | case 'd': /* Extract to base directory */
|
---|
| 410 | base_dir = optarg;
|
---|
| 411 | break;
|
---|
[821] | 412 |
|
---|
[3232] | 413 | case 'l': /* List */
|
---|
| 414 | listing = 1;
|
---|
| 415 | break;
|
---|
[821] | 416 |
|
---|
[3232] | 417 | case 'n': /* Never overwrite existing files */
|
---|
| 418 | overwrite = O_NEVER;
|
---|
| 419 | break;
|
---|
[821] | 420 |
|
---|
[3232] | 421 | case 'o': /* Always overwrite existing files */
|
---|
| 422 | overwrite = O_ALWAYS;
|
---|
| 423 | break;
|
---|
[821] | 424 |
|
---|
[3232] | 425 | case 'p': /* Extract files to stdout and fall through to set verbosity */
|
---|
| 426 | dst_fd = STDOUT_FILENO;
|
---|
[821] | 427 |
|
---|
[3232] | 428 | case 'q': /* Be quiet */
|
---|
| 429 | quiet++;
|
---|
| 430 | break;
|
---|
[2725] | 431 |
|
---|
[3232] | 432 | case 'v': /* Verbose list */
|
---|
| 433 | IF_DESKTOP(verbose++;)
|
---|
| 434 | listing = 1;
|
---|
| 435 | break;
|
---|
| 436 |
|
---|
| 437 | case 'x':
|
---|
| 438 | x_opt_seen = 1;
|
---|
| 439 | break;
|
---|
| 440 |
|
---|
| 441 | case 1:
|
---|
| 442 | if (!src_fn) {
|
---|
| 443 | /* The zip file */
|
---|
[2725] | 444 | /* +5: space for ".zip" and NUL */
|
---|
| 445 | src_fn = xmalloc(strlen(optarg) + 5);
|
---|
[1765] | 446 | strcpy(src_fn, optarg);
|
---|
[3232] | 447 | } else if (!x_opt_seen) {
|
---|
| 448 | /* Include files */
|
---|
[821] | 449 | llist_add_to(&zaccept, optarg);
|
---|
[3232] | 450 | } else {
|
---|
| 451 | /* Exclude files */
|
---|
[821] | 452 | llist_add_to(&zreject, optarg);
|
---|
[2725] | 453 | }
|
---|
[3232] | 454 | break;
|
---|
[821] | 455 |
|
---|
| 456 | default:
|
---|
| 457 | bb_show_usage();
|
---|
| 458 | }
|
---|
| 459 | }
|
---|
| 460 |
|
---|
[3232] | 461 | #ifndef __GLIBC__
|
---|
| 462 | /*
|
---|
| 463 | * This code is needed for non-GNU getopt
|
---|
| 464 | * which doesn't understand "-" in option string.
|
---|
| 465 | * The -x option won't work properly in this case:
|
---|
| 466 | * "unzip a.zip q -x w e" will be interpreted as
|
---|
| 467 | * "unzip a.zip q w e -x" = "unzip a.zip q w e"
|
---|
| 468 | */
|
---|
| 469 | argv += optind;
|
---|
| 470 | if (argv[0]) {
|
---|
| 471 | /* +5: space for ".zip" and NUL */
|
---|
| 472 | src_fn = xmalloc(strlen(argv[0]) + 5);
|
---|
| 473 | strcpy(src_fn, argv[0]);
|
---|
| 474 | while (*++argv)
|
---|
| 475 | llist_add_to(&zaccept, *argv);
|
---|
| 476 | }
|
---|
| 477 | #endif
|
---|
| 478 |
|
---|
| 479 | if (!src_fn) {
|
---|
[821] | 480 | bb_show_usage();
|
---|
| 481 | }
|
---|
| 482 |
|
---|
| 483 | /* Open input file */
|
---|
[1765] | 484 | if (LONE_DASH(src_fn)) {
|
---|
[2725] | 485 | xdup2(STDIN_FILENO, zip_fd);
|
---|
[821] | 486 | /* Cannot use prompt mode since zip data is arriving on STDIN */
|
---|
[2725] | 487 | if (overwrite == O_PROMPT)
|
---|
| 488 | overwrite = O_NEVER;
|
---|
[821] | 489 | } else {
|
---|
[3621] | 490 | static const char extn[][5] ALIGN1 = { ".zip", ".ZIP" };
|
---|
[3232] | 491 | char *ext = src_fn + strlen(src_fn);
|
---|
| 492 | int src_fd;
|
---|
[2725] | 493 |
|
---|
[3232] | 494 | i = 0;
|
---|
| 495 | for (;;) {
|
---|
[821] | 496 | src_fd = open(src_fn, O_RDONLY);
|
---|
[3232] | 497 | if (src_fd >= 0)
|
---|
| 498 | break;
|
---|
| 499 | if (++i > 2) {
|
---|
| 500 | *ext = '\0';
|
---|
| 501 | bb_error_msg_and_die("can't open %s[.zip]", src_fn);
|
---|
| 502 | }
|
---|
| 503 | strcpy(ext, extn[i - 1]);
|
---|
[821] | 504 | }
|
---|
[2725] | 505 | xmove_fd(src_fd, zip_fd);
|
---|
[821] | 506 | }
|
---|
| 507 |
|
---|
| 508 | /* Change dir if necessary */
|
---|
| 509 | if (base_dir)
|
---|
[1765] | 510 | xchdir(base_dir);
|
---|
[821] | 511 |
|
---|
[2725] | 512 | if (quiet <= 1) { /* not -qq */
|
---|
| 513 | if (quiet == 0)
|
---|
| 514 | printf("Archive: %s\n", src_fn);
|
---|
| 515 | if (listing) {
|
---|
| 516 | puts(verbose ?
|
---|
[3621] | 517 | " Length Method Size Cmpr Date Time CRC-32 Name\n"
|
---|
| 518 | "-------- ------ ------- ---- ---------- ----- -------- ----"
|
---|
[2725] | 519 | :
|
---|
[3621] | 520 | " Length Date Time Name\n"
|
---|
| 521 | "--------- ---------- ----- ----"
|
---|
[2725] | 522 | );
|
---|
| 523 | }
|
---|
| 524 | }
|
---|
[821] | 525 |
|
---|
[2725] | 526 | /* Example of an archive with one 0-byte long file named 'z'
|
---|
| 527 | * created by Zip 2.31 on Unix:
|
---|
| 528 | * 0000 [50 4b]03 04 0a 00 00 00 00 00 42 1a b8 3c 00 00 |PK........B..<..|
|
---|
| 529 | * sig........ vneed flags compr mtime mdate crc32>
|
---|
| 530 | * 0010 00 00 00 00 00 00 00 00 00 00 01 00 15 00 7a 55 |..............zU|
|
---|
| 531 | * >..... csize...... usize...... fnlen exlen fn ex>
|
---|
| 532 | * 0020 54 09 00 03 cc d3 f9 4b cc d3 f9 4b 55 78 04 00 |T......K...KUx..|
|
---|
| 533 | * >tra_field......................................
|
---|
| 534 | * 0030 00 00 00 00[50 4b]01 02 17 03 0a 00 00 00 00 00 |....PK..........|
|
---|
| 535 | * ........... sig........ vmade vneed flags compr
|
---|
| 536 | * 0040 42 1a b8 3c 00 00 00 00 00 00 00 00 00 00 00 00 |B..<............|
|
---|
| 537 | * mtime mdate crc32...... csize...... usize......
|
---|
| 538 | * 0050 01 00 0d 00 00 00 00 00 00 00 00 00 a4 81 00 00 |................|
|
---|
| 539 | * fnlen exlen clen. dnum. iattr eattr...... relofs> (eattr = rw-r--r--)
|
---|
| 540 | * 0060 00 00 7a 55 54 05 00 03 cc d3 f9 4b 55 78 00 00 |..zUT......KUx..|
|
---|
| 541 | * >..... fn extra_field...........................
|
---|
| 542 | * 0070 [50 4b]05 06 00 00 00 00 01 00 01 00 3c 00 00 00 |PK..........<...|
|
---|
| 543 | * 0080 34 00 00 00 00 00 |4.....|
|
---|
| 544 | */
|
---|
| 545 | total_usize = 0;
|
---|
| 546 | total_size = 0;
|
---|
| 547 | total_entries = 0;
|
---|
| 548 | #if ENABLE_DESKTOP
|
---|
| 549 | cdf_offset = 0;
|
---|
| 550 | #endif
|
---|
[821] | 551 | while (1) {
|
---|
[2725] | 552 | uint32_t magic;
|
---|
| 553 | mode_t dir_mode = 0777;
|
---|
| 554 | #if ENABLE_DESKTOP
|
---|
| 555 | mode_t file_mode = 0666;
|
---|
| 556 | #endif
|
---|
[821] | 557 |
|
---|
| 558 | /* Check magic number */
|
---|
[2725] | 559 | xread(zip_fd, &magic, 4);
|
---|
| 560 | /* Central directory? It's at the end, so exit */
|
---|
[3621] | 561 | if (magic == ZIP_CDF_MAGIC) {
|
---|
| 562 | dbg("got ZIP_CDF_MAGIC");
|
---|
[821] | 563 | break;
|
---|
[3621] | 564 | }
|
---|
[2725] | 565 | #if ENABLE_DESKTOP
|
---|
| 566 | /* Data descriptor? It was a streaming file, go on */
|
---|
| 567 | if (magic == ZIP_DD_MAGIC) {
|
---|
[3621] | 568 | dbg("got ZIP_DD_MAGIC");
|
---|
[2725] | 569 | /* skip over duplicate crc32, cmpsize and ucmpsize */
|
---|
| 570 | unzip_skip(3 * 4);
|
---|
| 571 | continue;
|
---|
[821] | 572 | }
|
---|
[2725] | 573 | #endif
|
---|
| 574 | if (magic != ZIP_FILEHEADER_MAGIC)
|
---|
| 575 | bb_error_msg_and_die("invalid zip magic %08X", (int)magic);
|
---|
[3621] | 576 | dbg("got ZIP_FILEHEADER_MAGIC");
|
---|
[821] | 577 |
|
---|
| 578 | /* Read the file header */
|
---|
[2725] | 579 | xread(zip_fd, zip_header.raw, ZIP_HEADER_LEN);
|
---|
| 580 | FIX_ENDIANNESS_ZIP(zip_header);
|
---|
[1765] | 581 | if ((zip_header.formatted.method != 0) && (zip_header.formatted.method != 8)) {
|
---|
[2725] | 582 | bb_error_msg_and_die("unsupported method %d", zip_header.formatted.method);
|
---|
[821] | 583 | }
|
---|
[2725] | 584 | #if !ENABLE_DESKTOP
|
---|
| 585 | if (zip_header.formatted.zip_flags & SWAP_LE16(0x0009)) {
|
---|
| 586 | bb_error_msg_and_die("zip flags 1 and 8 are not supported");
|
---|
| 587 | }
|
---|
| 588 | #else
|
---|
| 589 | if (zip_header.formatted.zip_flags & SWAP_LE16(0x0001)) {
|
---|
| 590 | /* 0x0001 - encrypted */
|
---|
| 591 | bb_error_msg_and_die("zip flag 1 (encryption) is not supported");
|
---|
| 592 | }
|
---|
[821] | 593 |
|
---|
[3621] | 594 | if (cdf_offset != BAD_CDF_OFFSET) {
|
---|
[2725] | 595 | cdf_header_t cdf_header;
|
---|
| 596 | cdf_offset = read_next_cdf(cdf_offset, &cdf_header);
|
---|
[3621] | 597 | /*
|
---|
| 598 | * Note: cdf_offset can become BAD_CDF_OFFSET after the above call.
|
---|
| 599 | */
|
---|
[2725] | 600 | if (zip_header.formatted.zip_flags & SWAP_LE16(0x0008)) {
|
---|
| 601 | /* 0x0008 - streaming. [u]cmpsize can be reliably gotten
|
---|
[3621] | 602 | * only from Central Directory. See unzip_doc.txt
|
---|
| 603 | */
|
---|
[2725] | 604 | zip_header.formatted.crc32 = cdf_header.formatted.crc32;
|
---|
| 605 | zip_header.formatted.cmpsize = cdf_header.formatted.cmpsize;
|
---|
| 606 | zip_header.formatted.ucmpsize = cdf_header.formatted.ucmpsize;
|
---|
| 607 | }
|
---|
| 608 | if ((cdf_header.formatted.version_made_by >> 8) == 3) {
|
---|
[3621] | 609 | /* This archive is created on Unix */
|
---|
[2725] | 610 | dir_mode = file_mode = (cdf_header.formatted.external_file_attributes >> 16);
|
---|
| 611 | }
|
---|
| 612 | }
|
---|
[3621] | 613 | if (cdf_offset == BAD_CDF_OFFSET
|
---|
| 614 | && (zip_header.formatted.zip_flags & SWAP_LE16(0x0008))
|
---|
| 615 | ) {
|
---|
| 616 | /* If it's a streaming zip, we _require_ CDF */
|
---|
| 617 | bb_error_msg_and_die("can't find file table");
|
---|
| 618 | }
|
---|
[2725] | 619 | #endif
|
---|
[3621] | 620 | dbg("File cmpsize:0x%x extra_len:0x%x ucmpsize:0x%x",
|
---|
| 621 | (unsigned)zip_header.formatted.cmpsize,
|
---|
| 622 | (unsigned)zip_header.formatted.extra_len,
|
---|
| 623 | (unsigned)zip_header.formatted.ucmpsize
|
---|
| 624 | );
|
---|
[2725] | 625 |
|
---|
[821] | 626 | /* Read filename */
|
---|
| 627 | free(dst_fn);
|
---|
[1765] | 628 | dst_fn = xzalloc(zip_header.formatted.filename_len + 1);
|
---|
[2725] | 629 | xread(zip_fd, dst_fn, zip_header.formatted.filename_len);
|
---|
[821] | 630 |
|
---|
| 631 | /* Skip extra header bytes */
|
---|
[2725] | 632 | unzip_skip(zip_header.formatted.extra_len);
|
---|
[821] | 633 |
|
---|
[3621] | 634 | /* Guard against "/abspath", "/../" and similar attacks */
|
---|
| 635 | overlapping_strcpy(dst_fn, strip_unsafe_prefix(dst_fn));
|
---|
| 636 |
|
---|
[821] | 637 | /* Filter zip entries */
|
---|
[2725] | 638 | if (find_list_entry(zreject, dst_fn)
|
---|
| 639 | || (zaccept && !find_list_entry(zaccept, dst_fn))
|
---|
| 640 | ) { /* Skip entry */
|
---|
[821] | 641 | i = 'n';
|
---|
[3621] | 642 | } else {
|
---|
| 643 | if (listing) {
|
---|
| 644 | /* List entry */
|
---|
| 645 | char dtbuf[sizeof("mm-dd-yyyy hh:mm")];
|
---|
| 646 | sprintf(dtbuf, "%02u-%02u-%04u %02u:%02u",
|
---|
| 647 | (zip_header.formatted.moddate >> 5) & 0xf, // mm: 0x01e0
|
---|
| 648 | (zip_header.formatted.moddate) & 0x1f, // dd: 0x001f
|
---|
| 649 | (zip_header.formatted.moddate >> 9) + 1980, // yy: 0xfe00
|
---|
| 650 | (zip_header.formatted.modtime >> 11), // hh: 0xf800
|
---|
| 651 | (zip_header.formatted.modtime >> 5) & 0x3f // mm: 0x07e0
|
---|
| 652 | // seconds/2 are not shown, encoded in ----------- 0x001f
|
---|
| 653 | );
|
---|
[2725] | 654 | if (!verbose) {
|
---|
[3621] | 655 | // " Length Date Time Name\n"
|
---|
| 656 | // "--------- ---------- ----- ----"
|
---|
| 657 | printf( "%9u " "%s " "%s\n",
|
---|
[2725] | 658 | (unsigned)zip_header.formatted.ucmpsize,
|
---|
[3621] | 659 | dtbuf,
|
---|
[2725] | 660 | dst_fn);
|
---|
| 661 | } else {
|
---|
| 662 | unsigned long percents = zip_header.formatted.ucmpsize - zip_header.formatted.cmpsize;
|
---|
[3621] | 663 | if ((int32_t)percents < 0)
|
---|
| 664 | percents = 0; /* happens if ucmpsize < cmpsize */
|
---|
[2725] | 665 | percents = percents * 100;
|
---|
| 666 | if (zip_header.formatted.ucmpsize)
|
---|
| 667 | percents /= zip_header.formatted.ucmpsize;
|
---|
[3621] | 668 | // " Length Method Size Cmpr Date Time CRC-32 Name\n"
|
---|
| 669 | // "-------- ------ ------- ---- ---------- ----- -------- ----"
|
---|
| 670 | printf( "%8u %s" "%9u%4u%% " "%s " "%08x " "%s\n",
|
---|
[2725] | 671 | (unsigned)zip_header.formatted.ucmpsize,
|
---|
[3621] | 672 | zip_header.formatted.method == 0 ? "Stored" : "Defl:N", /* Defl is method 8 */
|
---|
| 673 | /* TODO: show other methods?
|
---|
| 674 | * 1 - Shrunk
|
---|
| 675 | * 2 - Reduced with compression factor 1
|
---|
| 676 | * 3 - Reduced with compression factor 2
|
---|
| 677 | * 4 - Reduced with compression factor 3
|
---|
| 678 | * 5 - Reduced with compression factor 4
|
---|
| 679 | * 6 - Imploded
|
---|
| 680 | * 7 - Reserved for Tokenizing compression algorithm
|
---|
| 681 | * 9 - Deflate64
|
---|
| 682 | * 10 - PKWARE Data Compression Library Imploding
|
---|
| 683 | * 11 - Reserved by PKWARE
|
---|
| 684 | * 12 - BZIP2
|
---|
| 685 | */
|
---|
[2725] | 686 | (unsigned)zip_header.formatted.cmpsize,
|
---|
| 687 | (unsigned)percents,
|
---|
[3621] | 688 | dtbuf,
|
---|
[2725] | 689 | zip_header.formatted.crc32,
|
---|
| 690 | dst_fn);
|
---|
| 691 | total_size += zip_header.formatted.cmpsize;
|
---|
| 692 | }
|
---|
[3621] | 693 | total_usize += zip_header.formatted.ucmpsize;
|
---|
[821] | 694 | i = 'n';
|
---|
[3621] | 695 | } else if (dst_fd == STDOUT_FILENO) {
|
---|
| 696 | /* Extracting to STDOUT */
|
---|
[821] | 697 | i = -1;
|
---|
[3621] | 698 | } else if (last_char_is(dst_fn, '/')) {
|
---|
| 699 | /* Extract directory */
|
---|
[821] | 700 | if (stat(dst_fn, &stat_buf) == -1) {
|
---|
| 701 | if (errno != ENOENT) {
|
---|
[2725] | 702 | bb_perror_msg_and_die("can't stat '%s'", dst_fn);
|
---|
[821] | 703 | }
|
---|
[2725] | 704 | if (!quiet) {
|
---|
[821] | 705 | printf(" creating: %s\n", dst_fn);
|
---|
| 706 | }
|
---|
| 707 | unzip_create_leading_dirs(dst_fn);
|
---|
[3232] | 708 | if (bb_make_directory(dst_fn, dir_mode, FILEUTILS_IGNORE_CHMOD_ERR)) {
|
---|
| 709 | xfunc_die();
|
---|
[821] | 710 | }
|
---|
| 711 | } else {
|
---|
| 712 | if (!S_ISDIR(stat_buf.st_mode)) {
|
---|
[3621] | 713 | bb_error_msg_and_die("'%s' exists but is not a %s",
|
---|
| 714 | dst_fn, "directory");
|
---|
[821] | 715 | }
|
---|
| 716 | }
|
---|
| 717 | i = 'n';
|
---|
[3621] | 718 | } else {
|
---|
| 719 | /* Extract file */
|
---|
[2725] | 720 | check_file:
|
---|
[3621] | 721 | if (stat(dst_fn, &stat_buf) == -1) {
|
---|
| 722 | /* File does not exist */
|
---|
[821] | 723 | if (errno != ENOENT) {
|
---|
[2725] | 724 | bb_perror_msg_and_die("can't stat '%s'", dst_fn);
|
---|
[821] | 725 | }
|
---|
| 726 | i = 'y';
|
---|
[3621] | 727 | } else {
|
---|
| 728 | /* File already exists */
|
---|
[2725] | 729 | if (overwrite == O_NEVER) {
|
---|
[821] | 730 | i = 'n';
|
---|
[3621] | 731 | } else if (S_ISREG(stat_buf.st_mode)) {
|
---|
| 732 | /* File is regular file */
|
---|
[2725] | 733 | if (overwrite == O_ALWAYS) {
|
---|
[821] | 734 | i = 'y';
|
---|
| 735 | } else {
|
---|
| 736 | printf("replace %s? [y]es, [n]o, [A]ll, [N]one, [r]ename: ", dst_fn);
|
---|
[3621] | 737 | my_fgets80(key_buf);
|
---|
[821] | 738 | i = key_buf[0];
|
---|
| 739 | }
|
---|
[3621] | 740 | } else {
|
---|
| 741 | /* File is not regular file */
|
---|
| 742 | bb_error_msg_and_die("'%s' exists but is not a %s",
|
---|
| 743 | dst_fn, "regular file");
|
---|
[821] | 744 | }
|
---|
| 745 | }
|
---|
| 746 | }
|
---|
| 747 | }
|
---|
| 748 |
|
---|
| 749 | switch (i) {
|
---|
| 750 | case 'A':
|
---|
[2725] | 751 | overwrite = O_ALWAYS;
|
---|
[821] | 752 | case 'y': /* Open file and fall into unzip */
|
---|
| 753 | unzip_create_leading_dirs(dst_fn);
|
---|
[2725] | 754 | #if ENABLE_DESKTOP
|
---|
| 755 | dst_fd = xopen3(dst_fn, O_WRONLY | O_CREAT | O_TRUNC, file_mode);
|
---|
| 756 | #else
|
---|
[1765] | 757 | dst_fd = xopen(dst_fn, O_WRONLY | O_CREAT | O_TRUNC);
|
---|
[2725] | 758 | #endif
|
---|
[821] | 759 | case -1: /* Unzip */
|
---|
[2725] | 760 | if (!quiet) {
|
---|
[821] | 761 | printf(" inflating: %s\n", dst_fn);
|
---|
| 762 | }
|
---|
[2725] | 763 | unzip_extract(&zip_header, dst_fd);
|
---|
[821] | 764 | if (dst_fd != STDOUT_FILENO) {
|
---|
| 765 | /* closing STDOUT is potentially bad for future business */
|
---|
| 766 | close(dst_fd);
|
---|
| 767 | }
|
---|
| 768 | break;
|
---|
| 769 |
|
---|
| 770 | case 'N':
|
---|
[2725] | 771 | overwrite = O_NEVER;
|
---|
[821] | 772 | case 'n':
|
---|
| 773 | /* Skip entry data */
|
---|
[2725] | 774 | unzip_skip(zip_header.formatted.cmpsize);
|
---|
[821] | 775 | break;
|
---|
| 776 |
|
---|
| 777 | case 'r':
|
---|
| 778 | /* Prompt for new name */
|
---|
| 779 | printf("new name: ");
|
---|
[3621] | 780 | my_fgets80(key_buf);
|
---|
[821] | 781 | free(dst_fn);
|
---|
[1765] | 782 | dst_fn = xstrdup(key_buf);
|
---|
[821] | 783 | chomp(dst_fn);
|
---|
[2725] | 784 | goto check_file;
|
---|
[821] | 785 |
|
---|
| 786 | default:
|
---|
[2725] | 787 | printf("error: invalid response [%c]\n", (char)i);
|
---|
| 788 | goto check_file;
|
---|
[821] | 789 | }
|
---|
| 790 |
|
---|
[2725] | 791 | total_entries++;
|
---|
[821] | 792 | }
|
---|
| 793 |
|
---|
[2725] | 794 | if (listing && quiet <= 1) {
|
---|
| 795 | if (!verbose) {
|
---|
[3621] | 796 | // " Length Date Time Name\n"
|
---|
| 797 | // "--------- ---------- ----- ----"
|
---|
| 798 | printf( " --------%21s" "-------\n"
|
---|
| 799 | "%9lu%21s" "%u files\n",
|
---|
| 800 | "",
|
---|
| 801 | total_usize, "", total_entries);
|
---|
[2725] | 802 | } else {
|
---|
| 803 | unsigned long percents = total_usize - total_size;
|
---|
[3621] | 804 | if ((long)percents < 0)
|
---|
| 805 | percents = 0; /* happens if usize < size */
|
---|
[2725] | 806 | percents = percents * 100;
|
---|
| 807 | if (total_usize)
|
---|
| 808 | percents /= total_usize;
|
---|
[3621] | 809 | // " Length Method Size Cmpr Date Time CRC-32 Name\n"
|
---|
| 810 | // "-------- ------ ------- ---- ---------- ----- -------- ----"
|
---|
| 811 | printf( "-------- ------- ----%28s" "----\n"
|
---|
| 812 | "%8lu" "%17lu%4u%%%28s" "%u files\n",
|
---|
| 813 | "",
|
---|
| 814 | total_usize, total_size, (unsigned)percents, "",
|
---|
[2725] | 815 | total_entries);
|
---|
| 816 | }
|
---|
[821] | 817 | }
|
---|
| 818 |
|
---|
[2725] | 819 | return 0;
|
---|
[821] | 820 | }
|
---|