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-rw-r--r--src/libirecovery.c115
1 files changed, 65 insertions, 50 deletions
diff --git a/src/libirecovery.c b/src/libirecovery.c
index a2ec9c9..131032c 100644
--- a/src/libirecovery.c
+++ b/src/libirecovery.c
@@ -27,18 +27,6 @@
#define BUFFER_SIZE 0x1000
#define debug(...) if(client->debug) fprintf(stderr, __VA_ARGS__)
-const char* irecv_error_invalid_input = "Invalid input";
-const char* irecv_error_unknown = "Unknown error";
-const char* irecv_error_file_not_found = "Unable to find file";
-const char* irecv_error_usb_status = "Invalid device status";
-const char* irecv_error_no_device = "Unable to find device";
-const char* irecv_error_out_of_memory = "Unable to allocate memory";
-const char* irecv_error_unable_to_connect = "Unable to connect to device";
-const char* irecv_error_usb_interface = "Unable to set device interface";
-const char* irecv_error_success = "Command completed successfully";
-const char* irecv_error_usb_upload = "Unable to upload data to device";
-const char* irecv_error_usb_configuration = "Unable to set device configuration";
-
int irecv_default_sender(irecv_client_t client, unsigned char* data, int size);
int irecv_default_receiver(irecv_client_t client, unsigned char* data, int size);
@@ -85,22 +73,17 @@ irecv_error_t irecv_open(irecv_client_t* pclient, const char* uuid) {
return IRECV_E_OUT_OF_MEMORY;
}
memset(client, '\0', sizeof(irecv_client_t));
+ client->interface = -1;
client->handle = usb_handle;
client->context = usb_context;
- client->mode = (irecv_mode_t) usb_descriptor.idProduct;
+ client->mode = usb_descriptor.idProduct;
error = irecv_set_configuration(client, 1);
if(error != IRECV_E_SUCCESS) {
return error;
}
- error = irecv_set_interface(client, 1, 1);
- if(error != IRECV_E_SUCCESS) {
- return error;
- }
-
*pclient = client;
- printf("done");
return IRECV_E_SUCCESS;
}
}
@@ -133,9 +116,11 @@ irecv_error_t irecv_set_interface(irecv_client_t client, int interface, int alt_
return IRECV_E_NO_DEVICE;
}
- debug("Setting to interface %d:%d", interface, alt_interface);
- libusb_reset_device(client->handle);
+ if(client->interface == interface) {
+ return IRECV_E_SUCCESS;
+ }
+ debug("Setting to interface %d:%d", interface, alt_interface);
if (libusb_claim_interface(client->handle, interface) < 0) {
return IRECV_E_USB_INTERFACE;
}
@@ -150,7 +135,7 @@ irecv_error_t irecv_set_interface(irecv_client_t client, int interface, int alt_
}
irecv_error_t irecv_reset(irecv_client_t client) {
- if (client == NULL || client->handle != NULL) {
+ if (client == NULL || client->handle == NULL) {
return IRECV_E_NO_DEVICE;
}
@@ -161,7 +146,9 @@ irecv_error_t irecv_reset(irecv_client_t client) {
irecv_error_t irecv_close(irecv_client_t client) {
if (client != NULL) {
if (client->handle != NULL) {
- libusb_release_interface(client->handle, 1);
+ if(client->interface >= 0) {
+ libusb_release_interface(client->handle, client->interface);
+ }
libusb_close(client->handle);
client->handle = NULL;
}
@@ -171,10 +158,6 @@ irecv_error_t irecv_close(irecv_client_t client) {
client->context = NULL;
}
- if(client->uuid != NULL) {
- free(client->uuid);
- }
-
free(client);
client = NULL;
}
@@ -220,6 +203,11 @@ irecv_error_t irecv_send_command(irecv_client_t client, unsigned char* command)
return IRECV_E_NO_DEVICE;
}
+ irecv_error_t error = irecv_set_interface(client, 1, 1);
+ if(error != IRECV_E_SUCCESS) {
+ return error;
+ }
+
unsigned int length = strlen(command);
if(length >= 0x100) {
length = 0xFF;
@@ -257,7 +245,7 @@ irecv_error_t irecv_send_file(irecv_client_t client, const char* filename) {
if(bytes != length) {
free(buffer);
- return IRECV_E_UNKNOWN;
+ return IRECV_E_UNKNOWN_ERROR;
}
irecv_error_t error = irecv_send_buffer(client, buffer, length);
@@ -271,6 +259,11 @@ irecv_error_t irecv_get_status(irecv_client_t client, unsigned int* status) {
return IRECV_E_NO_DEVICE;
}
+ irecv_error_t error = irecv_set_interface(client, 1, 1);
+ if(error != IRECV_E_SUCCESS) {
+ return error;
+ }
+
unsigned char buffer[6];
memset(buffer, '\0', 6);
if(libusb_control_transfer(client->handle, 0xA1, 3, 0, 0, buffer, 6, 1000) != 6) {
@@ -289,6 +282,11 @@ irecv_error_t irecv_send_buffer(irecv_client_t client, unsigned char* buffer, un
return IRECV_E_NO_DEVICE;
}
+ error = irecv_set_interface(client, 1, 1);
+ if(error != IRECV_E_SUCCESS) {
+ return error;
+ }
+
int last = length % 0x800;
int packets = length / 0x800;
if (last != 0) {
@@ -312,7 +310,7 @@ irecv_error_t irecv_send_buffer(irecv_client_t client, unsigned char* buffer, un
}
if(status != 5) {
- return IRECV_E_USB_STATUS;
+ return IRECV_E_USB_UPLOAD;
}
}
@@ -335,12 +333,17 @@ irecv_error_t irecv_receive(irecv_client_t client) {
return IRECV_E_NO_DEVICE;
}
+ irecv_error_t error = irecv_set_interface(client, 1, 1);
+ if(error != IRECV_E_SUCCESS) {
+ return error;
+ }
+
int bytes = 0;
while(libusb_bulk_transfer(client->handle, 0x81, buffer, BUFFER_SIZE, &bytes, 100) == 0) {
if(bytes > 0) {
if(client->receive_callback != NULL) {
if(client->receive_callback(client, buffer, bytes) != bytes) {
- return IRECV_E_UNKNOWN;
+ return IRECV_E_UNKNOWN_ERROR;
}
}
} else break;
@@ -380,14 +383,23 @@ irecv_error_t irecv_set_sender(irecv_client_t client, irecv_send_callback callba
}
irecv_error_t irecv_getenv(irecv_client_t client, unsigned char** var) {
- unsigned char* value = (unsigned char*) malloc(0x200);
+ if(client == NULL || client->handle == NULL) {
+ return IRECV_E_NO_DEVICE;
+ }
+
+ irecv_error_t error = irecv_set_interface(client, 1, 1);
+ if(error != IRECV_E_SUCCESS) {
+ return error;
+ }
+
+ unsigned char* value = (unsigned char*) malloc(256);
if(value == NULL) {
return IRECV_E_OUT_OF_MEMORY;
}
- int ret = libusb_control_transfer(client->handle, 0xC0, 0, 0, 0, value, 0x200, 500);
+ int ret = libusb_control_transfer(client->handle, 0xC0, 0, 0, 0, value, 256, 500);
if(ret < 0) {
- return IRECV_E_UNKNOWN;
+ return IRECV_E_UNKNOWN_ERROR;
}
*var = value;
@@ -398,56 +410,59 @@ irecv_error_t irecv_getenv(irecv_client_t client, unsigned char** var) {
irecv_error_t irecv_get_ecid(irecv_client_t client, unsigned long long* ecid) {
char info[256];
memset(info, '\0', 256);
- libusb_get_string_descriptor_ascii(client->handle, 3, info, 0x100);
- debug("%s\n", info);
+
+ if(client == NULL || client->handle == NULL) {
+ return IRECV_E_NO_DEVICE;
+ }
+
+ libusb_get_string_descriptor_ascii(client->handle, 3, info, 255);
+ printf("%d: %s\n", strlen(info), info);
unsigned char* ecid_string = strstr(info, "ECID:");
if(ecid_string == NULL) {
*ecid = 0;
- return IRECV_E_UNKNOWN;
+ return IRECV_E_UNKNOWN_ERROR;
}
sscanf(ecid_string, "ECID:%qX", ecid);
+ irecv_reset(client);
return IRECV_E_SUCCESS;
}
const char* irecv_strerror(irecv_error_t error) {
switch(error) {
case IRECV_E_SUCCESS:
- return irecv_error_success;
+ return "Command completed successfully";
case IRECV_E_NO_DEVICE:
- return irecv_error_no_device;
+ return "Unable to find device";
case IRECV_E_OUT_OF_MEMORY:
- return irecv_error_out_of_memory;
+ return "Out of memory";
case IRECV_E_UNABLE_TO_CONNECT:
- return irecv_error_unable_to_connect;
+ return "Unable to connect to device";
case IRECV_E_INVALID_INPUT:
- return irecv_error_invalid_input;
-
- case IRECV_E_UNKNOWN:
- return irecv_error_unknown;
+ return "Invalid input";
case IRECV_E_FILE_NOT_FOUND:
- return irecv_error_file_not_found;
+ return "File not found";
case IRECV_E_USB_UPLOAD:
- return irecv_error_usb_upload;
+ return "Unable to upload data to device";
case IRECV_E_USB_STATUS:
- return irecv_error_usb_status;
+ return "Unable to get device status";
case IRECV_E_USB_INTERFACE:
- return irecv_error_usb_interface;
+ return "Unable to set device interface";
case IRECV_E_USB_CONFIGURATION:
- return irecv_error_usb_configuration;
+ return "Unable to set device configuration";
default:
- return irecv_error_unknown;
+ return "Unknown error";
}
return NULL;
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