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rz-ax: add MS-DOS and Win32 timestamp conversion(#4526)
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* Added MS-DOS timestamp functionality to rz-ax
* Added Win32 command to rz-ax
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@TheN00bBuilder
TheN00bBuilder committed Jun 2, 2024
1 parent 5129fdb commit 53ce6e5
Showing 1 changed file with 50 additions and 33 deletions.
83 changes: 50 additions & 33 deletions librz/main/rz-ax.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,32 +5,35 @@
#include <rz_util.h>
#include <rz_util/rz_print.h>

#define RZ_AX_FLAG_HEX_TO_RAW (1ull << 0) // -s (hexstr -> raw)
#define RZ_AX_FLAG_SWAP_ENDIANNESS (1ull << 1) // -e (swap endianness)
#define RZ_AX_FLAG_RAW_TO_HEX (1ull << 2) // -S (raw -> hexstr)
#define RZ_AX_FLAG_BIN_TO_STR (1ull << 3) // -b (bin -> str)
#define RZ_AX_FLAG_STR_TO_DJB2 (1ull << 4) // -x (str -> djb2 hash)
#define RZ_AX_FLAG_KEEP_BASE (1ull << 5) // -k (keep base)
#define RZ_AX_FLAG_FLOATING_POINT (1ull << 6) // -f (floating point)
#define RZ_AX_FLAG_FORCE_INTEGER (1ull << 7) // -d (force integer)
#define RZ_AX_FLAG_NUMBER_TO_HEX (1ull << 9) // -n (num -> hex)
#define RZ_AX_FLAG_UNITS (1ull << 10) // -u (units)
#define RZ_AX_FLAG_TIMESTAMP_TO_STR (1ull << 11) // -t (timestamp -> str)
#define RZ_AX_FLAG_BASE64_ENCODE (1ull << 12) // -E (base64 encode)
#define RZ_AX_FLAG_BASE64_DECODE (1ull << 13) // -D (base64 decode)
#define RZ_AX_FLAG_RAW_TO_LANGBYTES (1ull << 14) // -F (raw -> C or JS or Python bytes)
#define RZ_AX_FLAG_NUMBER_TO_HEXSTR (1ull << 15) // -N (num -> escaped hex string)
#define RZ_AX_FLAG_SIGNED_WORD (1ull << 16) // -w (signed word)
#define RZ_AX_FLAG_STR_TO_BIN (1ull << 17) // -B (str -> bin)
#define RZ_AX_FLAG_RIZIN_CMD (1ull << 18) // -r (rizin commands)
#define RZ_AX_FLAG_BIN_TO_BIGNUM (1ull << 19) // -L (bin -> hex(bignum))
#define RZ_AX_FLAG_DUMP_C_BYTES (1ull << 21) // -i (dump as C byte array)
#define RZ_AX_FLAG_OCTAL_TO_RAW (1ull << 22) // -o (octalstr -> raw)
#define RZ_AX_FLAG_IPADDR_TO_LONG (1ull << 23) // -I (IP address <-> LONG)
#define RZ_AX_FLAG_SET_BITS (1ull << 24) // -p (find position of set bits)

#define has_flag(f, x) (f & x)
#define RZ_AX_FLAG_HEX_TO_RAW (1ull << 0) // -s (hexstr -> raw)
#define RZ_AX_FLAG_SWAP_ENDIANNESS (1ull << 1) // -e (swap endianness)
#define RZ_AX_FLAG_RAW_TO_HEX (1ull << 2) // -S (raw -> hexstr)
#define RZ_AX_FLAG_BIN_TO_STR (1ull << 3) // -b (bin -> str)
#define RZ_AX_FLAG_STR_TO_DJB2 (1ull << 4) // -x (str -> djb2 hash)
#define RZ_AX_FLAG_KEEP_BASE (1ull << 5) // -k (keep base)
#define RZ_AX_FLAG_FLOATING_POINT (1ull << 6) // -f (floating point)
#define RZ_AX_FLAG_FORCE_INTEGER (1ull << 7) // -d (force integer)
#define RZ_AX_FLAG_NUMBER_TO_HEX (1ull << 9) // -n (num -> hex)
#define RZ_AX_FLAG_UNITS (1ull << 10) // -u (units)
#define RZ_AX_FLAG_TIMESTAMP_TO_STR (1ull << 11) // -t (unix timestamp -> str)
#define RZ_AX_FLAG_BASE64_ENCODE (1ull << 12) // -E (base64 encode)
#define RZ_AX_FLAG_BASE64_DECODE (1ull << 13) // -D (base64 decode)
#define RZ_AX_FLAG_RAW_TO_LANGBYTES (1ull << 14) // -F (raw -> C or JS or Python bytes)
#define RZ_AX_FLAG_NUMBER_TO_HEXSTR (1ull << 15) // -N (num -> escaped hex string)
#define RZ_AX_FLAG_SIGNED_WORD (1ull << 16) // -w (signed word)
#define RZ_AX_FLAG_STR_TO_BIN (1ull << 17) // -B (str -> bin)
#define RZ_AX_FLAG_RIZIN_CMD (1ull << 18) // -r (rizin commands)
#define RZ_AX_FLAG_BIN_TO_BIGNUM (1ull << 19) // -L (bin -> hex(bignum))
#define RZ_AX_FLAG_DUMP_C_BYTES (1ull << 21) // -i (dump as C byte array)
#define RZ_AX_FLAG_OCTAL_TO_RAW (1ull << 22) // -o (octalstr -> raw)
#define RZ_AX_FLAG_IPADDR_TO_LONG (1ull << 23) // -I (IP address <-> LONG)
#define RZ_AX_FLAG_SET_BITS (1ull << 24) // -p (find position of set bits)
#define RZ_AX_FLAG_DOS_TIMESTAMP_TO_STR (1ull << 25) // -m (MS-DOS timestamp -> str)
#define RZ_AX_FLAG_WIN_TIMESTAMP_TO_STR (1ull << 26) // -W (Win32 timestamp -> str)

#define has_flag(f, x) (f & x)
#define is_timestamp(f) ((f & RZ_AX_FLAG_DOS_TIMESTAMP_TO_STR) || \
(f & RZ_AX_FLAG_TIMESTAMP_TO_STR) || (f & RZ_AX_FLAG_WIN_TIMESTAMP_TO_STR))
// don't use fixed sized buffers
#define STDIN_BUFFER_SIZE 354096
static int rax(RzNum *num, char *str, int len, int last, ut64 *flags, int *fm);
Expand Down Expand Up @@ -226,7 +229,9 @@ static int help(void) {
" -r rz style output ; rz-ax -r 0x1234\n"
" -s hexstr -> raw ; rz-ax -s 43 4a 50\n"
" -S raw -> hexstr ; rz-ax -S < /bin/ls > ls.hex\n"
" -t tstamp -> str ; rz-ax -t 1234567890\n"
" -t Unix tstamp -> str ; rz-ax -t 1234567890\n"
" -m MS-DOS tstamp -> str ; rz-ax -m 1234567890\n"
" -W Win32 tstamp -> str ; rz-ax -W 1234567890\n"
" -x hash string ; rz-ax -x linux osx\n"
" -u units ; rz-ax -u 389289238 # 317.0M\n"
" -w signed word ; rz-ax -w 16 0xffff\n"
Expand Down Expand Up @@ -289,6 +294,8 @@ static int rax(RzNum *num, char *str, int len, int last, ut64 *_flags, int *fm)
case 'i': flags ^= RZ_AX_FLAG_DUMP_C_BYTES; break;
case 'o': flags ^= RZ_AX_FLAG_OCTAL_TO_RAW; break;
case 'I': flags ^= RZ_AX_FLAG_IPADDR_TO_LONG; break;
case 'm': flags ^= RZ_AX_FLAG_DOS_TIMESTAMP_TO_STR; break;
case 'W': flags ^= RZ_AX_FLAG_WIN_TIMESTAMP_TO_STR; break;
case 'v': return rz_main_version_print("rz-ax");
case '\0':
*_flags = flags;
Expand Down Expand Up @@ -495,23 +502,33 @@ static int rax(RzNum *num, char *str, int len, int last, ut64 *_flags, int *fm)
rz_num_units(buf, sizeof(buf), rz_num_math(NULL, str));
printf("%s\n", buf);
return true;
} else if (has_flag(flags, RZ_AX_FLAG_TIMESTAMP_TO_STR)) { // -t
} else if (is_timestamp(flags)) { // -t, -m, -W
RzList *split = rz_str_split_list(str, "GMT", 0);
RzListIter *head = rz_list_head(split);
char *ts = rz_list_iter_get_data(head);
const char *gmt = rz_list_iter_get_next_data(head);
if (gmt && strlen(gmt) < 2) {
gmt = NULL;
}
ut32 n = rz_num_math(num, ts);
ut64 n = rz_num_math(num, ts);
int timezone = (int)rz_num_math(num, gmt);
n += timezone * (60 * 60);
char *date = rz_time_date_unix_to_string(n);
printf("%s\n", date);
fflush(stdout);
free(date);
char *date = NULL;
if (has_flag(flags, RZ_AX_FLAG_TIMESTAMP_TO_STR)) {
date = rz_time_date_unix_to_string((ut32)n);
} else if (has_flag(flags, RZ_AX_FLAG_DOS_TIMESTAMP_TO_STR)) {
date = rz_time_date_dos_to_string((ut32)n);
} else {
date = rz_time_date_w32_to_string(n);
}
rz_list_free(split);
return true;
if (date != NULL) {
printf("%s\n", date);
fflush(stdout);
free(date);
return true;
}
return false;
} else if (has_flag(flags, RZ_AX_FLAG_BASE64_ENCODE)) { // -E
const int n = strlen(str);
/* http://stackoverflow.com/questions/4715415/base64-what-is-the-worst-possible-increase-in-space-usage */
Expand Down

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