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authorGravatar Nikias Bassen2022-10-04 14:36:57 +0200
committerGravatar Nikias Bassen2022-10-04 14:36:57 +0200
commit5debcee5a74550c28da735bb1cfc5b4c8f2614a9 (patch)
tree7afdb56a63bb962e90945b2ecb22d44f46140b4e
parentef7cf8eb545d9ed3fb1f351376dec71608d0127b (diff)
downloadlibimobiledevice-5debcee5a74550c28da735bb1cfc5b4c8f2614a9.tar.gz
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mobilebackup: Fix version check to allow operability with really old iOS versions
-rw-r--r--src/mobilebackup.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/src/mobilebackup.c b/src/mobilebackup.c
index aa29277..1505623 100644
--- a/src/mobilebackup.c
+++ b/src/mobilebackup.c
@@ -279,7 +279,15 @@ LIBIMOBILEDEVICE_API mobilebackup_error_t mobilebackup_request_backup(mobileback
char *str = NULL;
plist_get_string_val(node, &str);
if (str) {
- if (strcmp(str, proto_version) != 0) {
+ int maj = 0;
+ int min = 0;
+ sscanf(str, "%u.%u", &maj, &min);
+ uint32_t this_ver = ((maj & 0xFF) << 8) | (min & 0xFF);
+ maj = 0;
+ min = 0;
+ sscanf(proto_version, "%u.%u", &maj, &min);
+ uint32_t proto_ver = ((maj & 0xFF) << 8) | (min & 0xFF);
+ if (this_ver > proto_ver) {
err = MOBILEBACKUP_E_BAD_VERSION;
}
free(str);
@@ -346,7 +354,15 @@ LIBIMOBILEDEVICE_API mobilebackup_error_t mobilebackup_request_restore(mobilebac
char *str = NULL;
plist_get_string_val(node, &str);
if (str) {
- if (strcmp(str, proto_version) != 0) {
+ int maj = 0;
+ int min = 0;
+ sscanf(str, "%u.%u", &maj, &min);
+ uint32_t this_ver = ((maj & 0xFF) << 8) | (min & 0xFF);
+ maj = 0;
+ min = 0;
+ sscanf(proto_version, "%u.%u", &maj, &min);
+ uint32_t proto_ver = ((maj & 0xFF) << 8) | (min & 0xFF);
+ if (this_ver > proto_ver) {
err = MOBILEBACKUP_E_BAD_VERSION;
}
free(str);