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Add prgl command to decompress current block using lz4 ##print

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Sergi Àlvarez i Capilla 2022-02-09 12:26:53 +01:00 committed by pancake
parent 08bf7bc8c7
commit 77b7926a50
1 changed files with 32 additions and 2 deletions
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34
libr/core/cmd_print.c
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@ -7,6 +7,12 @@
#include "r_types.h"
#include <limits.h>
#ifdef R_MESON_VERSION
#include <lz4.h>
#else
#include "../../../shlr/lz4/lz4.c"
#endif
#define R_CORE_MAX_DISASM (1024 * 1024 * 8)
#define PF_USAGE_STR "pf[.k[.f[=v]]|[v]]|[n]|[0|cnt][fmt] [a0 a1 ...]"
@ -103,8 +109,9 @@ static const char* help_msg_pr[] = {
};
static const char *help_msg_prg[] = {
"Usage: prg[io]", "", "print raw GUNZIPped block",
"Usage: prg[?ilo]", " [len]", "print raw inflated/decompressed block",
"prg", "", "print gunzipped data of current block",
"prgl", "", "decompress current block using LZ4 (adjust blocksize)",
"prgi", "", "show consumed bytes when inflating",
"prgo", "", "show output bytes after inflating",
NULL
@ -6422,9 +6429,31 @@ static int cmd_print(void *data, const char *input) {
break;
case 'g': // "prg" // gunzip
switch (input[2]) {
default:
case '?':
r_core_cmd_help (core, help_msg_prg);
break;
case 'l': // "prgl" // lz4
{
ut8 *dst = calloc (len, 4);
if (dst) {
// TODO. hack into lz4 to make it work without knowing the input
int consumed = 0;
int olen = 0;
ut8 *obuf = r_inflate_lz4 (core->block, len, &consumed, &olen);
if (obuf) {
for (i = 0; i < olen; i += 32) {
int left = R_MIN (olen - i, 32);
r_cons_printf ("wx+");
r_print_bytes (core->print, obuf + i, left, "%02x");
}
} else {
eprintf ("Invalid input size %d\n", olen);
}
free (dst);
}
}
break;
case 'i': // "prgi"
{
int outlen = 0;
@ -6444,7 +6473,8 @@ static int cmd_print(void *data, const char *input) {
free (out);
}
break;
default:
case 0:
case ' ':
{
int outlen = 0;
ut8 *out;