added irecv_send_buffer() to lib header and simplified some packet math

1 files changed, 3 insertions, 80 deletions

diff --git a/src/libirecovery.c b/src/libirecovery.c
index e3d6eb6..630a9b7 100644
--- a/src/libirecovery.c
+++ b/src/libirecovery.c
@@ -175,13 +175,11 @@ unsigned int irecv_get_status(irecv_device* device) {
 }
 
 int irecv_send_buffer(irecv_device* device, unsigned char* buffer, int length) {
+	int last = length % 0x800;
 	int packets = length / 0x800;
-	if (length % 0x800) {
+	if (last != 0) {
 		packets++;
-	}
-
-	int last = length % 0x800;
-	if (!last) {
+	} else {
 		last = 0x800;
 	}
 
@@ -212,78 +210,3 @@ int irecv_send_buffer(irecv_device* device, unsigned char* buffer, int length) {
 	free(buffer);
 	return IRECV_SUCCESS;
 }
-
-/*
-int send_file(struct libusb_device_handle *handle, const char* filename, int loadOffset) {
-	FILE* file = fopen(filename, "rb");
-	if (file == NULL) {
-		printf("send_file: File %s not found.\n", filename);
-		return -1;
-	}
-
-	fseek(file, 0, SEEK_END);
-	int len = ftell(file);
-	fseek(file, 0, SEEK_SET);
-
-	char* buffer = malloc(len + loadOffset);
-	if (buffer == NULL) {
-		printf("send_file: Error allocating memory!\n");
-		fclose(file);
-		return -1;
-	}
-
-	fread(&buffer[loadOffset], 1, len, file);
-	fclose(file);
-
-	len += loadOffset;
-
-	int packets = len / 0x800;
-	if (len % 0x800) {
-		packets++;
-	}
-
-	int last = len % 0x800;
-	if (!last) {
-		last = 0x800;
-	}
-
-	int i = 0;
-	char response[6];
-	for (i = 0; i < packets; i++) {
-		int size = i + 1 < packets ? 0x800 : last;
-
-		if (!libusb_control_transfer(handle, 0x21, 1, i, 0, &buffer[i * 0x800], size, 1000)) {
-			printf("send_file: Error sending packet!\n");
-			return -1;
-		}
-
-		if (libusb_control_transfer(handle, 0xA1, 3, 0, 0, response, 6, 1000) != 6) {
-			printf("send_file: Error receiving status!\n");
-			return -1;
-
-		} else {
-			if (response[4] != 5) {
-				printf("send_file: Status error!\n");
-				return -1;
-			}
-		}
-	}
-
-	libusb_control_transfer(handle, 0x21, 1, i, 0, buffer, 0, 1000);
-	for (i = 6; i <= 8; i++) {
-		if (libusb_control_transfer(handle, 0xA1, 3, 0, 0, response, 6, 1000) != 6) {
-			printf("send_file: Error receiving status!\n");
-			return -1;
-
-		} else {
-			if (response[4] != i) {
-				printf("send_file: Status error!\n");
-				return -1;
-			}
-		}
-	}
-
-	free(buffer);
-	return 0;
-}
-*/