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Implement ?x- command to decode hexpair strings

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This commit is contained in:
pancake 2014-03-31 17:16:27 +02:00
parent 9e08e07b7b
commit 796bb19cfd
3 changed files with 10 additions and 4 deletions
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2
libr/core/cmd_anal.c
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@ -7,7 +7,7 @@ static void var_help(char ch) {
if (ch) {
eprintf ("|Usage: af%c [idx] [type] [name]\n", ch);
eprintf ("| af%c ; list function %s\n", ch, kind);
eprintf ("| af%c 12 int buffer[3] ; add %s at index, type and name\n", ch);
eprintf ("| af%c 12 int buffer[3] ; add %s at index, type and name\n", ch, kind);
eprintf ("| af%c-12 ; delete %s at index 12\n", ch, kind);
eprintf ("| af%cs [index] ([offset]) ; register 'set' action\n", ch);
eprintf ("| af%cg [index] ([offset]) ; register 'get' action\n", ch);

10
libr/core/cmd_help.c
View File

@ -234,7 +234,13 @@ static int cmd_help(void *data, const char *input) {
break;
case 'x':
for (input++; input[0]==' '; input++);
if (!memcmp (input, "0x", 2) || (*input>='0' && *input<='9')) {
if (*input=='-') {
ut8 *out = malloc (strlen (input));
int len = r_hex_str2bin (input+1, out);
out[len] = 0;
r_cons_printf ("%s\n", (const char*)out);
free (out);
} else if (!memcmp (input, "0x", 2) || (*input>='0' && *input<='9')) {
ut64 n = r_num_math (core->num, input);
int bits = r_num_to_bits (NULL, n) / 8;
for (i=0; i<bits; i++)
@ -392,7 +398,7 @@ static int cmd_help(void *data, const char *input) {
"| ?v eip-0x804800 show hex value of math expr\n"
"| ?vi rsp-rbp show decimal value of math expr\n"
"| ?V show library version of r_core\n"
"| ?x num|0xnum|str returns the hexpair of number or string\n"
"| ?x num|str|-hexst returns the hexpair of number or string\n"
"| ?X num|expr returns the hexadecimal value numeric expr\n"
"| ?y [str] show contents of yank buffer, or set with string\n"
"| ?! [cmd] ? != 0\n"

2
libr/util/hex.c
View File

@ -1,4 +1,4 @@
/* radare - LGPL - Copyright 2007-2013 - pancake */
/* radare - LGPL - Copyright 2007-2014 - pancake */
#include "r_types.h"
#include "r_util.h"