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Make /az faster after aeim, skipping unrelated regions ##search

This commit is contained in:
pancake 2022-10-14 21:36:38 +02:00 committed by GitHub
parent 5328afc86b
commit 8f0e9451b7
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 42 additions and 12 deletions
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2
libr/core/cmd_anal.c
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@ -11729,7 +11729,7 @@ static int cmd_anal_all(RCore *core, const char *input) {
}
if (input[1] == 'a') { // "aaaa"
r_core_cmd0 (core, "/azq > /dev/null");
r_core_cmd0 (core, "/azq");
if (!didAap) {
didAap = true;
R_LOG_INFO ("Finding function preludes");

46
libr/core/cmd_search.c
View File

@ -2280,6 +2280,11 @@ static void search_hit_at(RCore *core, struct search_parameters *param, RCoreAsm
}
static bool do_analstr_search(RCore *core, struct search_parameters *param, bool quiet, const char *input) {
bool silent = false;
if (!input) {
input = "";
silent = true;
}
ut64 at;
RAnalOp aop;
int hasch = 0;
@ -2305,13 +2310,24 @@ static bool do_analstr_search(RCore *core, struct search_parameters *param, bool
r_list_foreach (param->boundaries, iter, map) {
ut64 from = r_io_map_begin (map);
ut64 to = r_io_map_end (map);
if (!(map->perm & R_PERM_X)) {
continue;
}
for (i = 0, at = from; at < to; i++, at++) {
if (r_cons_is_breaked ()) {
break;
}
at = from + i;
ut8 bufop[32];
r_io_read_at (core->io, at, bufop, sizeof (bufop));
ut8 bufop[32] = {0};
if (!r_io_read_at (core->io, at, bufop, sizeof (bufop))) {
break;
}
bool fail = !memcmp (bufop, "\xff\xff\xff\xff", 4);
if (fail) {
R_LOG_DEBUG ("Invalid read at 0x%08"PFMT64x, at);
break;
}
ret = r_anal_op (core->anal, &aop, at, bufop, sizeof (bufop), R_ANAL_OP_MASK_BASIC | R_ANAL_OP_MASK_DISASM);
if (ret) {
if (hasch > 0) {
@ -2346,7 +2362,6 @@ static bool do_analstr_search(RCore *core, struct search_parameters *param, bool
char ch2 = (aop.val >> 16) & 0xff;
char ch3 = (aop.val >> 24) & 0xff;
if (IS_PRINTABLE (ch0) && IS_PRINTABLE (ch1) && IS_PRINTABLE (ch2)) {
eprintf ("JAJA LE STRING IS %c %c %c %c\n", ch0, ch1, ch2, ch3);
char chstr[2] = {ch0, 0};
r_strbuf_append (sb, chstr);
chstr[0] = ch1;
@ -2405,9 +2420,15 @@ static bool do_analstr_search(RCore *core, struct search_parameters *param, bool
r_list_free (words);
free (word);
r_cons_break_pop ();
if (silent) {
r_strbuf_free (rb);
} else {
char *res = r_strbuf_drain (rb);
if (R_STR_ISNOTEMPTY (res)) {
r_cons_println (res);
}
free (res);
}
r_strbuf_free (sb);
return false;
}
@ -3828,16 +3849,25 @@ reread:
dosearch = false;
break;
case 'z':
if (input[2] == '?') { // "/az"
switch (input[2]) {
case '?': // "/az"
r_core_cmd_help_match (core, help_msg_slash_a, "/az", true);
} else if (input[2] == 'q') { // "/azq"
break;
case 'q': // "/azq"
do_analstr_search (core, &param, true, r_str_trim_head_ro (input + 3));
} else if (input[2] == ' ') { // "/az [num]"
break;
case 's': // "/azs"
do_analstr_search (core, &param, true, NULL);
break;
case ' ': // "/az [num]"
do_analstr_search (core, &param, false, r_str_trim_head_ro (input + 2));
} else if (input[2] == 0) { // "/az"
break;
case 0:
do_analstr_search (core, &param, false, "");
} else {
break;
default:
r_core_cmd_help_match (core, help_msg_slash_a, "/az", true);
break;
}
dosearch = false;
break;