static int __core_patch_bracket(RCore *core, const char *str, ut64 *noff) {
char tmp[128];
char *s, *p, *q, *off;
RBuffer *b = r_buf_new ();
if (!b) {
return 0;
}
p = off = strdup (str);
if (!p) {
r_buf_free (b);
return 0;
}
for (;*p;) {
if (*p=='\n') {
*p++ = 0;
} else {
p++;
continue;
}
if (*str == '}')
break;
if ((q = strstr (str, "${"))) {
char *end = strchr (q+2,'}');
if (end) {
*q = *end = 0;
*noff = r_num_math (core->num, q+2);
r_buf_append_bytes (b, (const ut8*)str, strlen (str));
snprintf (tmp, sizeof (tmp), "0x%08"PFMT64x, *noff);
r_buf_append_bytes (b, (const ut8*)tmp, strlen (tmp));
r_buf_append_bytes (b, (const ut8*)end+1, strlen (end+1));
}
} else {
r_buf_append_bytes (b, (const ut8*)str, strlen (str));
}
str = p;
}
s = r_buf_to_string (b);
r_egg_load (core->egg, s, 0);
free (s);
r_egg_compile (core->egg);
r_egg_assemble (core->egg);
r_buf_free (b);
b = r_egg_get_bin (core->egg);
if (strcmp (off, "+")) {
*noff = r_num_math (core->num, off);
}
r_core_write_at (core, *noff, b->buf, b->length);
*noff += b->length;
free (off);
return 1;
}
R_API int r_core_patch (RCore *core, const char *patch) {
char *p, *p2, *q, str[200], tmp[64];
ut64 noff = 0LL;
FILE *fd = r_sandbox_fopen (patch, "r");
if (fd==NULL) {
eprintf ("Cannot open patch file\n");
return 1;
}
while (!feof (fd)) {
fgets (str, sizeof (str), fd);
if (*str=='#' || *str=='\n' || *str=='\r')
continue;
if (*str==':') {
r_core_cmd0 (core, str+1);
continue;
}
if (*str=='.' || *str=='!') {
r_core_cmd0 (core, str);
continue;
}
p = strchr (str+1, ' ');
if (p) {
*p = 0;
for (++p; *p==' '; p++); // XXX: skipsspaces here
switch (*p) {
case '{': {
char *s, *off = strdup (str);
RBuffer *b = r_buf_new ();
while (!feof (fd)) {
fgets (str, sizeof (str), fd);
if (*str=='}')
break;
if ((q=strstr (str, "${"))) {
char *end = strchr (q+2,'}');
if (end) {
*q = *end = 0;
noff = r_num_math (core->num, q+2);
r_buf_append_bytes (b, (const ut8*)str, strlen (str));
snprintf (tmp, sizeof (tmp), "0x%08"PFMT64x, noff);
r_buf_append_bytes (b, (const ut8*)tmp, strlen (tmp));
r_buf_append_bytes (b, (const ut8*)end+1, strlen (end+1));
}
} else r_buf_append_bytes (b, (const ut8*)str, strlen (str));
}
s = r_buf_to_string (b);
r_egg_load (core->egg, s, 0);
free (s);
r_egg_compile (core->egg);
r_egg_assemble (core->egg);
r_buf_free (b);
b = r_egg_get_bin (core->egg);
if (strcmp (off, "+"))
noff = r_num_math (core->num, off);
r_core_write_at (core, noff, b->buf, b->length);
noff += b->length;
r_buf_free (b);
free (off);
}
break;
case '"':
p2 = strchr (p+1,'"');
if (p2) *p2=0;
r_core_cmdf (core, "s %s", str);
r_core_cmdf (core, "\"w %s\"", p+1);
break;
case ':':
r_core_cmdf (core, "s %s", str);
r_core_cmdf (core, "wa %s", p);
break;
default:
r_core_cmdf (core, "s %s", str);
r_core_cmdf (core, "wx %s", p);
break;
}
}
}
fclose (fd);
return 0;
}
