"Minimalized" for busybox by Alain Knaff
*/
-
//config:config LZOP
-//config: bool "lzop"
+//config: bool "lzop (13 kb)"
//config: default y
//config: help
-//config: Lzop compression/decompresion.
+//config: Lzop compression/decompresion.
+//config:
+//config:config UNLZOP
+//config: bool "unlzop (13 kb)"
+//config: default n # INCOMPAT: upstream lzop does not provide such tool
+//config: help
+//config: Lzop decompresion.
+//config:
+//config:config LZOPCAT
+//config: bool "lzopcat (13 kb)"
+//config: default n # INCOMPAT: upstream lzop does not provide such tool
+//config: help
+//config: Alias to "lzop -dc".
//config:
//config:config LZOP_COMPR_HIGH
//config: bool "lzop compression levels 7,8,9 (not very useful)"
//config: default n
-//config: depends on LZOP
+//config: depends on LZOP || UNLZOP || LZOPCAT
//config: help
-//config: High levels (7,8,9) of lzop compression. These levels
-//config: are actually slower than gzip at equivalent compression ratios
-//config: and take up 3.2K of code.
+//config: High levels (7,8,9) of lzop compression. These levels
+//config: are actually slower than gzip at equivalent compression ratios
+//config: and take up 3.2K of code.
//applet:IF_LZOP(APPLET(lzop, BB_DIR_BIN, BB_SUID_DROP))
-//applet:IF_LZOP(APPLET_ODDNAME(lzopcat, lzop, BB_DIR_USR_BIN, BB_SUID_DROP, lzopcat))
-//applet:IF_LZOP(APPLET_ODDNAME(unlzop, lzop, BB_DIR_USR_BIN, BB_SUID_DROP, unlzop))
+// APPLET_ODDNAME:name main location suid_type help
+//applet:IF_UNLZOP( APPLET_ODDNAME(unlzop, lzop, BB_DIR_USR_BIN, BB_SUID_DROP, unlzop))
+//applet:IF_LZOPCAT(APPLET_ODDNAME(lzopcat, lzop, BB_DIR_USR_BIN, BB_SUID_DROP, lzopcat))
+
//kbuild:lib-$(CONFIG_LZOP) += lzop.o
+//kbuild:lib-$(CONFIG_UNLZOP) += lzop.o
+//kbuild:lib-$(CONFIG_LZOPCAT) += lzop.o
//usage:#define lzop_trivial_usage
-//usage: "[-cfvd123456789CF] [FILE]..."
+//usage: "[-cfUvd123456789CF] [FILE]..."
//usage:#define lzop_full_usage "\n\n"
//usage: " -1..9 Compression level"
//usage: "\n -d Decompress"
//usage: "\n -c Write to stdout"
//usage: "\n -f Force"
+//usage: "\n -U Delete input files"
+///////: "\n -k Keep input files" (default, so why bother documenting?)
//usage: "\n -v Verbose"
//usage: "\n -F Don't store or verify checksum"
//usage: "\n -C Also write checksum of compressed block"
//usage:
//usage:#define lzopcat_trivial_usage
-//usage: "[-vCF] [FILE]..."
+//usage: "[-vF] [FILE]..."
//usage:#define lzopcat_full_usage "\n\n"
//usage: " -v Verbose"
-//usage: "\n -F Don't store or verify checksum"
+//usage: "\n -F Don't verify checksum"
//usage:
//usage:#define unlzop_trivial_usage
-//usage: "[-cfvCF] [FILE]..."
+//usage: "[-cfUvF] [FILE]..."
//usage:#define unlzop_full_usage "\n\n"
//usage: " -c Write to stdout"
//usage: "\n -f Force"
+//usage: "\n -U Delete input files"
+///////: "\n -k Keep input files" (default, so why bother documenting?)
//usage: "\n -v Verbose"
-//usage: "\n -F Don't store or verify checksum"
+//usage: "\n -F Don't verify checksum"
#include "libbb.h"
#include "common_bufsiz.h"
#define TEST_OP (op <= op_end)
static NOINLINE int lzo1x_optimize(uint8_t *in, unsigned in_len,
- uint8_t *out, unsigned *out_len,
- void* wrkmem UNUSED_PARAM)
+ uint8_t *out, unsigned *out_len /*, void* wrkmem */)
{
uint8_t* op;
uint8_t* ip;
chksum_t chksum_out;
} FIX_ALIASING;
#define G (*(struct globals*)bb_common_bufsiz1)
-#define INIT_G() do { } while (0)
+#define INIT_G() do { setup_common_bufsiz(); } while (0)
//#define G (*ptr_to_globals)
//#define INIT_G() do {
// SET_PTR_TO_GLOBALS(xzalloc(sizeof(G)));
//#define LZOP_VERSION_STRING "1.01"
//#define LZOP_VERSION_DATE "Apr 27th 2003"
-#define OPTION_STRING "cfvqdt123456789CF"
+// lzop wants to be weird:
+// unlike all other compressosrs, its -k "keep" option is the default,
+// and -U is used to delete the source. We will invert the bit after getopt().
+#define OPTION_STRING "cfUvqdt123456789CFk"
/* Note: must be kept in sync with archival/bbunzip.c */
enum {
OPT_STDOUT = (1 << 0),
OPT_FORCE = (1 << 1),
- OPT_VERBOSE = (1 << 2),
- OPT_QUIET = (1 << 3),
- OPT_DECOMPRESS = (1 << 4),
- OPT_TEST = (1 << 5),
- OPT_1 = (1 << 6),
- OPT_2 = (1 << 7),
- OPT_3 = (1 << 8),
- OPT_4 = (1 << 9),
- OPT_5 = (1 << 10),
- OPT_6 = (1 << 11),
- OPT_789 = (7 << 12),
+ OPT_KEEP = (1 << 2),
+ OPT_VERBOSE = (1 << 3),
+ OPT_QUIET = (1 << 4),
+ OPT_DECOMPRESS = (1 << 5),
+ OPT_TEST = (1 << 6),
+ OPT_1 = (1 << 7),
+ OPT_2 = (1 << 8),
+ OPT_3 = (1 << 9),
+ OPT_4 = (1 << 10),
+ OPT_5 = (1 << 11),
+ OPT_6 = (1 << 12),
OPT_7 = (1 << 13),
OPT_8 = (1 << 14),
- OPT_C = (1 << 15),
- OPT_F = (1 << 16),
+ OPT_9 = (1 << 15),
+ OPT_C = (1 << 16),
+ OPT_F = (1 << 17),
+ OPT_k = (1 << 18),
+ OPT_789 = OPT_7 | OPT_8 | OPT_9
};
/**********************************************************************/
/* optimize */
if (h->method == M_LZO1X_999) {
unsigned new_len = src_len;
- r = lzo1x_optimize(b2, dst_len, b1, &new_len, NULL);
+ r = lzo1x_optimize(b2, dst_len, b1, &new_len /*, NULL*/);
if (r != 0 /*LZO_E_OK*/ || new_len != src_len)
bb_error_msg_and_die("internal error - optimization failed");
}
/* decompress */
// if (option_mask32 & OPT_F)
-// r = lzo1x_decompress(b1, src_len, b2, &d, NULL);
+// r = lzo1x_decompress(b1, src_len, b2, &d /*, NULL*/);
// else
- r = lzo1x_decompress_safe(b1, src_len, b2, &d, NULL);
+ r = lzo1x_decompress_safe(b1, src_len, b2, &d /*, NULL*/);
if (r != 0 /*LZO_E_OK*/ || dst_len != d) {
bb_error_msg_and_die("corrupted data");
* chksum_out
* The rest is identical.
*/
-static const unsigned char lzop_magic[9] = {
+static const unsigned char lzop_magic[9] ALIGN1 = {
0x89, 0x4c, 0x5a, 0x4f, 0x00, 0x0d, 0x0a, 0x1a, 0x0a
};
{
getopt32(argv, OPTION_STRING);
argv += optind;
+ /* -U is "anti -k", invert bit for bbunpack(): */
+ option_mask32 ^= OPT_KEEP;
+ /* -k disables -U (if any): */
+ /* opt_complementary "k-U"? - nope, only handles -Uk, not -kU */
+ if (option_mask32 & OPT_k)
+ option_mask32 |= OPT_KEEP;
+
/* lzopcat? */
- if (applet_name[4] == 'c')
+ if (ENABLE_LZOPCAT && applet_name[4] == 'c')
option_mask32 |= (OPT_STDOUT | OPT_DECOMPRESS);
/* unlzop? */
- if (applet_name[4] == 'o')
+ if (ENABLE_UNLZOP && applet_name[4] == 'o')
option_mask32 |= OPT_DECOMPRESS;
- global_crc32_table = crc32_filltable(NULL, 0);
+ global_crc32_new_table_le();
return bbunpack(argv, pack_lzop, make_new_name_lzop, /*unused:*/ NULL);
}
projects / oweals / busybox.git / blobdiff