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Honor sandbox in 'z', add zB to generate raw byte signature

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This commit is contained in:
pancake 2015-05-19 10:17:52 +02:00
parent c21607030c
commit ef5d47f573
1 changed files with 27 additions and 2 deletions
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29
libr/core/cmd_zign.c
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@ -1,4 +1,4 @@
/* radare - LGPL - Copyright 2009-2013 - pancake */
/* radare - LGPL - Copyright 2009-2015 - pancake */
static int cmd_zign(void *data, const char *input) {
RCore *core = (RCore *)data;
@ -9,13 +9,37 @@ static int cmd_zign(void *data, const char *input) {
char *ptr, *name;
switch (*input) {
case 'B':
if (input[1]==' ' && input[2]) {
ut8 buf[128];
ut64 addr = core->offset;
int size = 32;
ptr = strchr (input+2, ' ');
if (ptr) {
size = atoi (ptr+1);
if (size<1) size = 1;
}
if (r_io_read_at (core->io, core->offset, buf,
sizeof (buf)) == sizeof (buf)) {
RFlagItem *flag = r_flag_get_i (core->flags, addr);
if (flag) {
name = flag->name;
r_cons_printf ("zb %s ", name);
len = R_MIN (size, sizeof (buf));
for (i=0; i<len; i++)
r_cons_printf ("%02x", buf[i]);
r_cons_newline ();
} else eprintf ("Unnamed function at 0x%08"PFMT64x"\n", addr);
} else eprintf ("Cannot read at 0x%08"PFMT64x"\n", addr);
} else eprintf ("Usage: zB [size] @@ sym*\nNote: Use zn and zn-");
break;
case 'g':
if (input[1]==' ' && input[2]) {
int fdold = r_cons_singleton ()->fdout;
ptr = strchr (input+2, ' ');
if (ptr) {
*ptr = '\0';
fd = open (ptr+1, O_RDWR|O_CREAT|O_TRUNC, 0644);
fd = r_sandbox_open (ptr+1, O_RDWR|O_CREAT|O_TRUNC, 0644);
if (fd == -1) {
eprintf ("Cannot open %s in read-write\n", ptr+1);
return R_FALSE;
@ -170,6 +194,7 @@ static int cmd_zign(void *data, const char *input) {
"z/", "[ini] [end]", "search zignatures between these regions",
"za", " ...", "define new zignature for analysis",
"zb", " name bytes", "define zignature for bytes",
"zB", " size", "Generate zignatures for current offset/flag",
"zc", " @ fcn.foo", "flag signature if matching (.zc@@fcn)",
"zf", " name fmt", "define function zignature (fast/slow, args, types)",
"zF", " file", "Open a flirt signature file and scan opened file",