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loader: refactor for R_TRY

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This commit is contained in:
Michael Scire 2019-06-17 16:29:09 -07:00
parent ee40dcd76f
commit f9bf8923b1
24 changed files with 437 additions and 579 deletions
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18
stratosphere/loader/source/ldr_patcher.cpp
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@ -13,7 +13,7 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstdlib>
#include <cstdint>
#include <cstdio>
@ -49,14 +49,14 @@ static bool MatchesBuildId(const char *name, size_t name_len, const u8 *build_id
return false;
}
}
/* Read build id from name. */
u8 build_id_from_name[0x20] = {0};
for (unsigned int name_ofs = 0, id_ofs = 0; name_ofs < name_len - 4; id_ofs++) {
build_id_from_name[id_ofs] |= HexNybbleToU8(name[name_ofs++]) << 4;
build_id_from_name[id_ofs] |= HexNybbleToU8(name[name_ofs++]);
}
return memcmp(build_id, build_id_from_name, sizeof(build_id_from_name)) == 0;
}
@ -68,7 +68,7 @@ static void ApplyIpsPatch(u8 *mapped_nso, size_t mapped_size, bool is_ips32, FIL
} else if (!is_ips32 && memcmp(buffer, IPS_TAIL, 3) == 0) {
break;
}
/* Offset of patch. */
u32 patch_offset;
if (is_ips32) {
@ -76,27 +76,27 @@ static void ApplyIpsPatch(u8 *mapped_nso, size_t mapped_size, bool is_ips32, FIL
} else {
patch_offset = (buffer[0] << 16) | (buffer[1] << 8) | (buffer[2]);
}
/* Size of patch. */
if (fread(buffer, 2, 1, f_ips) != 1) {
break;
}
u32 patch_size = (buffer[0] << 8) | (buffer[1]);
/* Check for RLE encoding. */
if (patch_size == 0) {
/* Size of RLE. */
if (fread(buffer, 2, 1, f_ips) != 1) {
break;
}
u32 rle_size = (buffer[0] << 8) | (buffer[1]);
/* Value for RLE. */
if (fread(buffer, 1, 1, f_ips) != 1) {
break;
}
if (patch_offset < sizeof(NsoUtils::NsoHeader)) {
if (patch_offset + rle_size > sizeof(NsoUtils::NsoHeader)) {
u32 diff = sizeof(NsoUtils::NsoHeader) - patch_offset;