| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini unzip implementation for busybox |
| * |
| * Copyright (C) 2004 by Ed Clark |
| * |
| * Loosely based on original busybox unzip applet by Laurence Anderson. |
| * All options and features should work in this version. |
| * |
| * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. |
| */ |
| |
| /* For reference see |
| * http://www.pkware.com/company/standards/appnote/ |
| * http://www.info-zip.org/pub/infozip/doc/appnote-iz-latest.zip |
| */ |
| |
| /* TODO |
| * Zip64 + other methods |
| */ |
| |
| #include "libbb.h" |
| #include "unarchive.h" |
| |
| enum { |
| #if BB_BIG_ENDIAN |
| ZIP_FILEHEADER_MAGIC = 0x504b0304, |
| ZIP_CDF_MAGIC = 0x504b0102, /* central directory's file header */ |
| ZIP_CDE_MAGIC = 0x504b0506, /* "end of central directory" record */ |
| ZIP_DD_MAGIC = 0x504b0708, |
| #else |
| ZIP_FILEHEADER_MAGIC = 0x04034b50, |
| ZIP_CDF_MAGIC = 0x02014b50, |
| ZIP_CDE_MAGIC = 0x06054b50, |
| ZIP_DD_MAGIC = 0x08074b50, |
| #endif |
| }; |
| |
| #define ZIP_HEADER_LEN 26 |
| |
| typedef union { |
| uint8_t raw[ZIP_HEADER_LEN]; |
| struct { |
| uint16_t version; /* 0-1 */ |
| uint16_t zip_flags; /* 2-3 */ |
| uint16_t method; /* 4-5 */ |
| uint16_t modtime; /* 6-7 */ |
| uint16_t moddate; /* 8-9 */ |
| uint32_t crc32 PACKED; /* 10-13 */ |
| uint32_t cmpsize PACKED; /* 14-17 */ |
| uint32_t ucmpsize PACKED; /* 18-21 */ |
| uint16_t filename_len; /* 22-23 */ |
| uint16_t extra_len; /* 24-25 */ |
| } formatted PACKED; |
| } zip_header_t; /* PACKED - gcc 4.2.1 doesn't like it (spews warning) */ |
| |
| /* Check the offset of the last element, not the length. This leniency |
| * allows for poor packing, whereby the overall struct may be too long, |
| * even though the elements are all in the right place. |
| */ |
| struct BUG_zip_header_must_be_26_bytes { |
| char BUG_zip_header_must_be_26_bytes[ |
| offsetof(zip_header_t, formatted.extra_len) + 2 |
| == ZIP_HEADER_LEN ? 1 : -1]; |
| }; |
| |
| #define FIX_ENDIANNESS_ZIP(zip_header) do { \ |
| (zip_header).formatted.version = SWAP_LE16((zip_header).formatted.version ); \ |
| (zip_header).formatted.method = SWAP_LE16((zip_header).formatted.method ); \ |
| (zip_header).formatted.modtime = SWAP_LE16((zip_header).formatted.modtime ); \ |
| (zip_header).formatted.moddate = SWAP_LE16((zip_header).formatted.moddate ); \ |
| (zip_header).formatted.crc32 = SWAP_LE32((zip_header).formatted.crc32 ); \ |
| (zip_header).formatted.cmpsize = SWAP_LE32((zip_header).formatted.cmpsize ); \ |
| (zip_header).formatted.ucmpsize = SWAP_LE32((zip_header).formatted.ucmpsize ); \ |
| (zip_header).formatted.filename_len = SWAP_LE16((zip_header).formatted.filename_len); \ |
| (zip_header).formatted.extra_len = SWAP_LE16((zip_header).formatted.extra_len ); \ |
| } while (0) |
| |
| #define CDF_HEADER_LEN 42 |
| |
| typedef union { |
| uint8_t raw[CDF_HEADER_LEN]; |
| struct { |
| /* uint32_t signature; 50 4b 01 02 */ |
| uint16_t version_made_by; /* 0-1 */ |
| uint16_t version_needed; /* 2-3 */ |
| uint16_t cdf_flags; /* 4-5 */ |
| uint16_t method; /* 6-7 */ |
| uint16_t mtime; /* 8-9 */ |
| uint16_t mdate; /* 10-11 */ |
| uint32_t crc32; /* 12-15 */ |
| uint32_t cmpsize; /* 16-19 */ |
| uint32_t ucmpsize; /* 20-23 */ |
| uint16_t file_name_length; /* 24-25 */ |
| uint16_t extra_field_length; /* 26-27 */ |
| uint16_t file_comment_length; /* 28-29 */ |
| uint16_t disk_number_start; /* 30-31 */ |
| uint16_t internal_file_attributes; /* 32-33 */ |
| uint32_t external_file_attributes PACKED; /* 34-37 */ |
| uint32_t relative_offset_of_local_header PACKED; /* 38-41 */ |
| } formatted PACKED; |
| } cdf_header_t; |
| |
| struct BUG_cdf_header_must_be_42_bytes { |
| char BUG_cdf_header_must_be_42_bytes[ |
| offsetof(cdf_header_t, formatted.relative_offset_of_local_header) + 4 |
| == CDF_HEADER_LEN ? 1 : -1]; |
| }; |
| |
| #define FIX_ENDIANNESS_CDF(cdf_header) do { \ |
| (cdf_header).formatted.crc32 = SWAP_LE32((cdf_header).formatted.crc32 ); \ |
| (cdf_header).formatted.cmpsize = SWAP_LE32((cdf_header).formatted.cmpsize ); \ |
| (cdf_header).formatted.ucmpsize = SWAP_LE32((cdf_header).formatted.ucmpsize ); \ |
| (cdf_header).formatted.file_name_length = SWAP_LE16((cdf_header).formatted.file_name_length); \ |
| (cdf_header).formatted.extra_field_length = SWAP_LE16((cdf_header).formatted.extra_field_length); \ |
| (cdf_header).formatted.file_comment_length = SWAP_LE16((cdf_header).formatted.file_comment_length); \ |
| IF_DESKTOP( \ |
| (cdf_header).formatted.version_made_by = SWAP_LE16((cdf_header).formatted.version_made_by); \ |
| (cdf_header).formatted.external_file_attributes = SWAP_LE32((cdf_header).formatted.external_file_attributes); \ |
| ) \ |
| } while (0) |
| |
| #define CDE_HEADER_LEN 16 |
| |
| typedef union { |
| uint8_t raw[CDE_HEADER_LEN]; |
| struct { |
| /* uint32_t signature; 50 4b 05 06 */ |
| uint16_t this_disk_no; |
| uint16_t disk_with_cdf_no; |
| uint16_t cdf_entries_on_this_disk; |
| uint16_t cdf_entries_total; |
| uint32_t cdf_size; |
| uint32_t cdf_offset; |
| /* uint16_t file_comment_length; */ |
| /* .ZIP file comment (variable size) */ |
| } formatted PACKED; |
| } cde_header_t; |
| |
| struct BUG_cde_header_must_be_16_bytes { |
| char BUG_cde_header_must_be_16_bytes[ |
| sizeof(cde_header_t) == CDE_HEADER_LEN ? 1 : -1]; |
| }; |
| |
| #define FIX_ENDIANNESS_CDE(cde_header) do { \ |
| (cde_header).formatted.cdf_offset = SWAP_LE32((cde_header).formatted.cdf_offset); \ |
| } while (0) |
| |
| enum { zip_fd = 3 }; |
| |
| |
| #if ENABLE_DESKTOP |
| |
| #define PEEK_FROM_END 16384 |
| |
| /* NB: does not preserve file position! */ |
| static uint32_t find_cdf_offset(void) |
| { |
| cde_header_t cde_header; |
| unsigned char *p; |
| off_t end; |
| unsigned char *buf = xzalloc(PEEK_FROM_END); |
| |
| end = xlseek(zip_fd, 0, SEEK_END); |
| end -= PEEK_FROM_END; |
| if (end < 0) |
| end = 0; |
| xlseek(zip_fd, end, SEEK_SET); |
| full_read(zip_fd, buf, PEEK_FROM_END); |
| |
| p = buf; |
| while (p <= buf + PEEK_FROM_END - CDE_HEADER_LEN - 4) { |
| if (*p != 'P') { |
| p++; |
| continue; |
| } |
| if (*++p != 'K') |
| continue; |
| if (*++p != 5) |
| continue; |
| if (*++p != 6) |
| continue; |
| /* we found CDE! */ |
| memcpy(cde_header.raw, p + 1, CDE_HEADER_LEN); |
| FIX_ENDIANNESS_CDE(cde_header); |
| free(buf); |
| return cde_header.formatted.cdf_offset; |
| } |
| //free(buf); |
| bb_error_msg_and_die("can't find file table"); |
| }; |
| |
| static uint32_t read_next_cdf(uint32_t cdf_offset, cdf_header_t *cdf_ptr) |
| { |
| off_t org; |
| |
| org = xlseek(zip_fd, 0, SEEK_CUR); |
| |
| if (!cdf_offset) |
| cdf_offset = find_cdf_offset(); |
| |
| xlseek(zip_fd, cdf_offset + 4, SEEK_SET); |
| xread(zip_fd, cdf_ptr->raw, CDF_HEADER_LEN); |
| FIX_ENDIANNESS_CDF(*cdf_ptr); |
| cdf_offset += 4 + CDF_HEADER_LEN |
| + cdf_ptr->formatted.file_name_length |
| + cdf_ptr->formatted.extra_field_length |
| + cdf_ptr->formatted.file_comment_length; |
| |
| xlseek(zip_fd, org, SEEK_SET); |
| return cdf_offset; |
| }; |
| #endif |
| |
| static void unzip_skip(off_t skip) |
| { |
| if (lseek(zip_fd, skip, SEEK_CUR) == (off_t)-1) |
| bb_copyfd_exact_size(zip_fd, -1, skip); |
| } |
| |
| static void unzip_create_leading_dirs(const char *fn) |
| { |
| /* Create all leading directories */ |
| char *name = xstrdup(fn); |
| if (bb_make_directory(dirname(name), 0777, FILEUTILS_RECUR)) { |
| bb_error_msg_and_die("exiting"); /* bb_make_directory is noisy */ |
| } |
| free(name); |
| } |
| |
| static void unzip_extract(zip_header_t *zip_header, int dst_fd) |
| { |
| if (zip_header->formatted.method == 0) { |
| /* Method 0 - stored (not compressed) */ |
| off_t size = zip_header->formatted.ucmpsize; |
| if (size) |
| bb_copyfd_exact_size(zip_fd, dst_fd, size); |
| } else { |
| /* Method 8 - inflate */ |
| inflate_unzip_result res; |
| if (inflate_unzip(&res, zip_header->formatted.cmpsize, zip_fd, dst_fd) < 0) |
| bb_error_msg_and_die("inflate error"); |
| /* Validate decompression - crc */ |
| if (zip_header->formatted.crc32 != (res.crc ^ 0xffffffffL)) { |
| bb_error_msg_and_die("crc error"); |
| } |
| /* Validate decompression - size */ |
| if (zip_header->formatted.ucmpsize != res.bytes_out) { |
| /* Don't die. Who knows, maybe len calculation |
| * was botched somewhere. After all, crc matched! */ |
| bb_error_msg("bad length"); |
| } |
| } |
| } |
| |
| int unzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| int unzip_main(int argc, char **argv) |
| { |
| enum { O_PROMPT, O_NEVER, O_ALWAYS }; |
| |
| zip_header_t zip_header; |
| smallint quiet = 0; |
| IF_NOT_DESKTOP(const) smallint verbose = 0; |
| smallint listing = 0; |
| smallint overwrite = O_PROMPT; |
| #if ENABLE_DESKTOP |
| uint32_t cdf_offset; |
| #endif |
| unsigned long total_usize; |
| unsigned long total_size; |
| unsigned total_entries; |
| int dst_fd = -1; |
| char *src_fn = NULL; |
| char *dst_fn = NULL; |
| llist_t *zaccept = NULL; |
| llist_t *zreject = NULL; |
| char *base_dir = NULL; |
| int i, opt; |
| int opt_range = 0; |
| char key_buf[80]; |
| struct stat stat_buf; |
| |
| /* -q, -l and -v: UnZip 5.52 of 28 February 2005, by Info-ZIP: |
| * |
| * # /usr/bin/unzip -qq -v decompress_unlzma.i.zip |
| * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i |
| * # /usr/bin/unzip -q -v decompress_unlzma.i.zip |
| * Length Method Size Ratio Date Time CRC-32 Name |
| * -------- ------ ------- ----- ---- ---- ------ ---- |
| * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i |
| * -------- ------- --- ------- |
| * 204372 35278 83% 1 file |
| * # /usr/bin/unzip -v decompress_unlzma.i.zip |
| * Archive: decompress_unlzma.i.zip |
| * Length Method Size Ratio Date Time CRC-32 Name |
| * -------- ------ ------- ----- ---- ---- ------ ---- |
| * 204372 Defl:N 35278 83% 09-06-09 14:23 0d056252 decompress_unlzma.i |
| * -------- ------- --- ------- |
| * 204372 35278 83% 1 file |
| * # unzip -v decompress_unlzma.i.zip |
| * Archive: decompress_unlzma.i.zip |
| * Length Date Time Name |
| * -------- ---- ---- ---- |
| * 204372 09-06-09 14:23 decompress_unlzma.i |
| * -------- ------- |
| * 204372 1 files |
| * # /usr/bin/unzip -l -qq decompress_unlzma.i.zip |
| * 204372 09-06-09 14:23 decompress_unlzma.i |
| * # /usr/bin/unzip -l -q decompress_unlzma.i.zip |
| * Length Date Time Name |
| * -------- ---- ---- ---- |
| * 204372 09-06-09 14:23 decompress_unlzma.i |
| * -------- ------- |
| * 204372 1 file |
| * # /usr/bin/unzip -l decompress_unlzma.i.zip |
| * Archive: decompress_unlzma.i.zip |
| * Length Date Time Name |
| * -------- ---- ---- ---- |
| * 204372 09-06-09 14:23 decompress_unlzma.i |
| * -------- ------- |
| * 204372 1 file |
| */ |
| |
| /* '-' makes getopt return 1 for non-options */ |
| while ((opt = getopt(argc, argv, "-d:lnopqxv")) != -1) { |
| switch (opt_range) { |
| case 0: /* Options */ |
| switch (opt) { |
| case 'l': /* List */ |
| listing = 1; |
| break; |
| |
| case 'n': /* Never overwrite existing files */ |
| overwrite = O_NEVER; |
| break; |
| |
| case 'o': /* Always overwrite existing files */ |
| overwrite = O_ALWAYS; |
| break; |
| |
| case 'p': /* Extract files to stdout and fall through to set verbosity */ |
| dst_fd = STDOUT_FILENO; |
| |
| case 'q': /* Be quiet */ |
| quiet++; |
| break; |
| |
| case 'v': /* Verbose list */ |
| IF_DESKTOP(verbose++;) |
| listing = 1; |
| break; |
| |
| case 1: /* The zip file */ |
| /* +5: space for ".zip" and NUL */ |
| src_fn = xmalloc(strlen(optarg) + 5); |
| strcpy(src_fn, optarg); |
| opt_range++; |
| break; |
| |
| default: |
| bb_show_usage(); |
| |
| } |
| break; |
| |
| case 1: /* Include files */ |
| if (opt == 1) { |
| llist_add_to(&zaccept, optarg); |
| break; |
| } |
| if (opt == 'd') { |
| base_dir = optarg; |
| opt_range += 2; |
| break; |
| } |
| if (opt == 'x') { |
| opt_range++; |
| break; |
| } |
| bb_show_usage(); |
| |
| case 2 : /* Exclude files */ |
| if (opt == 1) { |
| llist_add_to(&zreject, optarg); |
| break; |
| } |
| if (opt == 'd') { /* Extract to base directory */ |
| base_dir = optarg; |
| opt_range++; |
| break; |
| } |
| /* fall through */ |
| |
| default: |
| bb_show_usage(); |
| } |
| } |
| |
| if (src_fn == NULL) { |
| bb_show_usage(); |
| } |
| |
| /* Open input file */ |
| if (LONE_DASH(src_fn)) { |
| xdup2(STDIN_FILENO, zip_fd); |
| /* Cannot use prompt mode since zip data is arriving on STDIN */ |
| if (overwrite == O_PROMPT) |
| overwrite = O_NEVER; |
| } else { |
| static const char extn[][5] = {"", ".zip", ".ZIP"}; |
| int orig_src_fn_len = strlen(src_fn); |
| int src_fd = -1; |
| |
| for (i = 0; (i < 3) && (src_fd == -1); i++) { |
| strcpy(src_fn + orig_src_fn_len, extn[i]); |
| src_fd = open(src_fn, O_RDONLY); |
| } |
| if (src_fd == -1) { |
| src_fn[orig_src_fn_len] = '\0'; |
| bb_error_msg_and_die("can't open %s, %s.zip, %s.ZIP", src_fn, src_fn, src_fn); |
| } |
| xmove_fd(src_fd, zip_fd); |
| } |
| |
| /* Change dir if necessary */ |
| if (base_dir) |
| xchdir(base_dir); |
| |
| if (quiet <= 1) { /* not -qq */ |
| if (quiet == 0) |
| printf("Archive: %s\n", src_fn); |
| if (listing) { |
| puts(verbose ? |
| " Length Method Size Ratio Date Time CRC-32 Name\n" |
| "-------- ------ ------- ----- ---- ---- ------ ----" |
| : |
| " Length Date Time Name\n" |
| " -------- ---- ---- ----" |
| ); |
| } |
| } |
| |
| /* Example of an archive with one 0-byte long file named 'z' |
| * created by Zip 2.31 on Unix: |
| * 0000 [50 4b]03 04 0a 00 00 00 00 00 42 1a b8 3c 00 00 |PK........B..<..| |
| * sig........ vneed flags compr mtime mdate crc32> |
| * 0010 00 00 00 00 00 00 00 00 00 00 01 00 15 00 7a 55 |..............zU| |
| * >..... csize...... usize...... fnlen exlen fn ex> |
| * 0020 54 09 00 03 cc d3 f9 4b cc d3 f9 4b 55 78 04 00 |T......K...KUx..| |
| * >tra_field...................................... |
| * 0030 00 00 00 00[50 4b]01 02 17 03 0a 00 00 00 00 00 |....PK..........| |
| * ........... sig........ vmade vneed flags compr |
| * 0040 42 1a b8 3c 00 00 00 00 00 00 00 00 00 00 00 00 |B..<............| |
| * mtime mdate crc32...... csize...... usize...... |
| * 0050 01 00 0d 00 00 00 00 00 00 00 00 00 a4 81 00 00 |................| |
| * fnlen exlen clen. dnum. iattr eattr...... relofs> (eattr = rw-r--r--) |
| * 0060 00 00 7a 55 54 05 00 03 cc d3 f9 4b 55 78 00 00 |..zUT......KUx..| |
| * >..... fn extra_field........................... |
| * 0070 [50 4b]05 06 00 00 00 00 01 00 01 00 3c 00 00 00 |PK..........<...| |
| * 0080 34 00 00 00 00 00 |4.....| |
| */ |
| total_usize = 0; |
| total_size = 0; |
| total_entries = 0; |
| #if ENABLE_DESKTOP |
| cdf_offset = 0; |
| #endif |
| while (1) { |
| uint32_t magic; |
| mode_t dir_mode = 0777; |
| #if ENABLE_DESKTOP |
| mode_t file_mode = 0666; |
| #endif |
| |
| /* Check magic number */ |
| xread(zip_fd, &magic, 4); |
| /* Central directory? It's at the end, so exit */ |
| if (magic == ZIP_CDF_MAGIC) |
| break; |
| #if ENABLE_DESKTOP |
| /* Data descriptor? It was a streaming file, go on */ |
| if (magic == ZIP_DD_MAGIC) { |
| /* skip over duplicate crc32, cmpsize and ucmpsize */ |
| unzip_skip(3 * 4); |
| continue; |
| } |
| #endif |
| if (magic != ZIP_FILEHEADER_MAGIC) |
| bb_error_msg_and_die("invalid zip magic %08X", (int)magic); |
| |
| /* Read the file header */ |
| xread(zip_fd, zip_header.raw, ZIP_HEADER_LEN); |
| FIX_ENDIANNESS_ZIP(zip_header); |
| if ((zip_header.formatted.method != 0) && (zip_header.formatted.method != 8)) { |
| bb_error_msg_and_die("unsupported method %d", zip_header.formatted.method); |
| } |
| #if !ENABLE_DESKTOP |
| if (zip_header.formatted.zip_flags & SWAP_LE16(0x0009)) { |
| bb_error_msg_and_die("zip flags 1 and 8 are not supported"); |
| } |
| #else |
| if (zip_header.formatted.zip_flags & SWAP_LE16(0x0001)) { |
| /* 0x0001 - encrypted */ |
| bb_error_msg_and_die("zip flag 1 (encryption) is not supported"); |
| } |
| |
| { |
| cdf_header_t cdf_header; |
| cdf_offset = read_next_cdf(cdf_offset, &cdf_header); |
| if (zip_header.formatted.zip_flags & SWAP_LE16(0x0008)) { |
| /* 0x0008 - streaming. [u]cmpsize can be reliably gotten |
| * only from Central Directory. See unzip_doc.txt */ |
| zip_header.formatted.crc32 = cdf_header.formatted.crc32; |
| zip_header.formatted.cmpsize = cdf_header.formatted.cmpsize; |
| zip_header.formatted.ucmpsize = cdf_header.formatted.ucmpsize; |
| } |
| if ((cdf_header.formatted.version_made_by >> 8) == 3) { |
| /* this archive is created on Unix */ |
| dir_mode = file_mode = (cdf_header.formatted.external_file_attributes >> 16); |
| } |
| } |
| #endif |
| |
| /* Read filename */ |
| free(dst_fn); |
| dst_fn = xzalloc(zip_header.formatted.filename_len + 1); |
| xread(zip_fd, dst_fn, zip_header.formatted.filename_len); |
| |
| /* Skip extra header bytes */ |
| unzip_skip(zip_header.formatted.extra_len); |
| |
| /* Filter zip entries */ |
| if (find_list_entry(zreject, dst_fn) |
| || (zaccept && !find_list_entry(zaccept, dst_fn)) |
| ) { /* Skip entry */ |
| i = 'n'; |
| |
| } else { /* Extract entry */ |
| if (listing) { /* List entry */ |
| unsigned dostime = zip_header.formatted.modtime | (zip_header.formatted.moddate << 16); |
| if (!verbose) { |
| // " Length Date Time Name\n" |
| // " -------- ---- ---- ----" |
| printf( "%9u %02u-%02u-%02u %02u:%02u %s\n", |
| (unsigned)zip_header.formatted.ucmpsize, |
| (dostime & 0x01e00000) >> 21, |
| (dostime & 0x001f0000) >> 16, |
| (((dostime & 0xfe000000) >> 25) + 1980) % 100, |
| (dostime & 0x0000f800) >> 11, |
| (dostime & 0x000007e0) >> 5, |
| dst_fn); |
| total_usize += zip_header.formatted.ucmpsize; |
| } else { |
| unsigned long percents = zip_header.formatted.ucmpsize - zip_header.formatted.cmpsize; |
| percents = percents * 100; |
| if (zip_header.formatted.ucmpsize) |
| percents /= zip_header.formatted.ucmpsize; |
| // " Length Method Size Ratio Date Time CRC-32 Name\n" |
| // "-------- ------ ------- ----- ---- ---- ------ ----" |
| printf( "%8u Defl:N" "%9u%4u%% %02u-%02u-%02u %02u:%02u %08x %s\n", |
| (unsigned)zip_header.formatted.ucmpsize, |
| (unsigned)zip_header.formatted.cmpsize, |
| (unsigned)percents, |
| (dostime & 0x01e00000) >> 21, |
| (dostime & 0x001f0000) >> 16, |
| (((dostime & 0xfe000000) >> 25) + 1980) % 100, |
| (dostime & 0x0000f800) >> 11, |
| (dostime & 0x000007e0) >> 5, |
| zip_header.formatted.crc32, |
| dst_fn); |
| total_usize += zip_header.formatted.ucmpsize; |
| total_size += zip_header.formatted.cmpsize; |
| } |
| i = 'n'; |
| } else if (dst_fd == STDOUT_FILENO) { /* Extracting to STDOUT */ |
| i = -1; |
| } else if (last_char_is(dst_fn, '/')) { /* Extract directory */ |
| if (stat(dst_fn, &stat_buf) == -1) { |
| if (errno != ENOENT) { |
| bb_perror_msg_and_die("can't stat '%s'", dst_fn); |
| } |
| if (!quiet) { |
| printf(" creating: %s\n", dst_fn); |
| } |
| unzip_create_leading_dirs(dst_fn); |
| if (bb_make_directory(dst_fn, dir_mode, 0)) { |
| bb_error_msg_and_die("exiting"); |
| } |
| } else { |
| if (!S_ISDIR(stat_buf.st_mode)) { |
| bb_error_msg_and_die("'%s' exists but is not directory", dst_fn); |
| } |
| } |
| i = 'n'; |
| |
| } else { /* Extract file */ |
| check_file: |
| if (stat(dst_fn, &stat_buf) == -1) { /* File does not exist */ |
| if (errno != ENOENT) { |
| bb_perror_msg_and_die("can't stat '%s'", dst_fn); |
| } |
| i = 'y'; |
| } else { /* File already exists */ |
| if (overwrite == O_NEVER) { |
| i = 'n'; |
| } else if (S_ISREG(stat_buf.st_mode)) { /* File is regular file */ |
| if (overwrite == O_ALWAYS) { |
| i = 'y'; |
| } else { |
| printf("replace %s? [y]es, [n]o, [A]ll, [N]one, [r]ename: ", dst_fn); |
| if (!fgets(key_buf, sizeof(key_buf), stdin)) { |
| bb_perror_msg_and_die("can't read input"); |
| } |
| i = key_buf[0]; |
| } |
| } else { /* File is not regular file */ |
| bb_error_msg_and_die("'%s' exists but is not regular file", dst_fn); |
| } |
| } |
| } |
| } |
| |
| switch (i) { |
| case 'A': |
| overwrite = O_ALWAYS; |
| case 'y': /* Open file and fall into unzip */ |
| unzip_create_leading_dirs(dst_fn); |
| #if ENABLE_DESKTOP |
| dst_fd = xopen3(dst_fn, O_WRONLY | O_CREAT | O_TRUNC, file_mode); |
| #else |
| dst_fd = xopen(dst_fn, O_WRONLY | O_CREAT | O_TRUNC); |
| #endif |
| case -1: /* Unzip */ |
| if (!quiet) { |
| printf(" inflating: %s\n", dst_fn); |
| } |
| unzip_extract(&zip_header, dst_fd); |
| if (dst_fd != STDOUT_FILENO) { |
| /* closing STDOUT is potentially bad for future business */ |
| close(dst_fd); |
| } |
| break; |
| |
| case 'N': |
| overwrite = O_NEVER; |
| case 'n': |
| /* Skip entry data */ |
| unzip_skip(zip_header.formatted.cmpsize); |
| break; |
| |
| case 'r': |
| /* Prompt for new name */ |
| printf("new name: "); |
| if (!fgets(key_buf, sizeof(key_buf), stdin)) { |
| bb_perror_msg_and_die("can't read input"); |
| } |
| free(dst_fn); |
| dst_fn = xstrdup(key_buf); |
| chomp(dst_fn); |
| goto check_file; |
| |
| default: |
| printf("error: invalid response [%c]\n", (char)i); |
| goto check_file; |
| } |
| |
| total_entries++; |
| } |
| |
| if (listing && quiet <= 1) { |
| if (!verbose) { |
| // " Length Date Time Name\n" |
| // " -------- ---- ---- ----" |
| printf( " -------- -------\n" |
| "%9lu" " %u files\n", |
| total_usize, total_entries); |
| } else { |
| unsigned long percents = total_usize - total_size; |
| percents = percents * 100; |
| if (total_usize) |
| percents /= total_usize; |
| // " Length Method Size Ratio Date Time CRC-32 Name\n" |
| // "-------- ------ ------- ----- ---- ---- ------ ----" |
| printf( "-------- ------- --- -------\n" |
| "%8lu" "%17lu%4u%% %u files\n", |
| total_usize, total_size, (unsigned)percents, |
| total_entries); |
| } |
| } |
| |
| return 0; |
| } |