From 8ce201d0207a93d26c19fd136df4040f11ebcef1 Mon Sep 17 00:00:00 2001
From: open-license-manager <rillf@maildrop.cc>
Date: 周二, 14 10月 2014 06:58:34 +0800
Subject: [PATCH] windows ok

---
 src/library/pc-identifiers.c |  234 +++++++++++++++++++++++++++++++--------------------------
 1 files changed, 127 insertions(+), 107 deletions(-)

diff --git a/src/library/pc-identifiers.c b/src/library/pc-identifiers.c
index 75d70fe..280b9f6 100644
--- a/src/library/pc-identifiers.c
+++ b/src/library/pc-identifiers.c
@@ -2,7 +2,7 @@
  * pc-identifiers.c
  *
  *  Created on: Apr 16, 2014
- *      
+ *
  */
 
 #include "os/os.h"
@@ -18,94 +18,112 @@
 #include <Windows.h>
 #endif
 
+//FIXME if adapterinfo or diskinfo fail the function fails
 static FUNCTION_RETURN generate_default_pc_id(PcIdentifier * identifiers,
-		unsigned int * num_identifiers) {
+											  unsigned int * num_identifiers) {
 	size_t adapter_num, disk_num;
-	FUNCTION_RETURN result_adapterInfos, result_diskinfos;
-	unsigned int required_id_size, defined_identifiers, i, j, k;
-	DiskInfo * diskInfos;
-	OsAdapterInfo *adapterInfos;
+	FUNCTION_RETURN result_adapterInfos, result_diskinfos, function_return;
+	unsigned int caller_identifiers, i, j, k, array_index;
+	DiskInfo * diskInfoPtr;
+	OsAdapterInfo *adapterInfoPtr;
 
-	result_adapterInfos = getAdapterInfos(NULL, &adapter_num);
-	if (result_adapterInfos != FUNC_RET_OK) {
-		//call generate_disk_pc_id;
-		return result_adapterInfos;
-	}
-	result_diskinfos = getDiskInfos(NULL, &disk_num);
-	if (result_diskinfos == FUNC_RET_OK) {
-		required_id_size = disk_num * adapter_num;
-	} else {
-		required_id_size = disk_num;
-	}
-	defined_identifiers = *num_identifiers;
-	*num_identifiers = required_id_size;
-	if (identifiers == NULL) {
-		return FUNC_RET_OK;
-	} else if (required_id_size > defined_identifiers) {
-		return FUNC_RET_BUFFER_TOO_SMALL;
-	}
-	diskInfos = (DiskInfo*) malloc(disk_num * sizeof(DiskInfo));
-	result_diskinfos = getDiskInfos(diskInfos, &disk_num);
-	adapterInfos = (OsAdapterInfo*) malloc(adapter_num * sizeof(OsAdapterInfo));
-	result_adapterInfos = getAdapterInfos(adapterInfos, &adapter_num);
-	for (i = 0; i < disk_num; i++) {
-		for (j = 0; j < adapter_num; j++) {
-			for (k = 0; k < 6; k++)
-				identifiers[i * adapter_num + j][k] =
-						diskInfos[i].disk_sn[k + 2]
-								^ adapterInfos[j].mac_address[k + 2];
+	if (identifiers == NULL || *num_identifiers == 0) {
+		result_adapterInfos = getAdapterInfos(NULL, &adapter_num);
+		if (result_adapterInfos != FUNC_RET_OK) {
+			return generate_disk_pc_id(identifiers,	num_identifiers, false);
 		}
-	}
+		result_diskinfos = getDiskInfos(NULL, &disk_num);
+		if (result_diskinfos != FUNC_RET_OK) {
+			return generate_ethernet_pc_id(identifiers, num_identifiers, true);
+		}
+		*num_identifiers = disk_num * adapter_num;
+		function_return = FUNC_RET_OK;
+	} else {
+		adapterInfoPtr = (OsAdapterInfo*)malloc((*num_identifiers) * sizeof(OsAdapterInfo));
+		adapter_num = *num_identifiers;
+		result_adapterInfos = getAdapterInfos(adapterInfoPtr, &adapter_num);
+		if (result_adapterInfos != FUNC_RET_OK && result_adapterInfos != FUNC_RET_BUFFER_TOO_SMALL) {
+			free(diskInfoPtr);
+			return generate_disk_pc_id(identifiers, num_identifiers, false);
+		}
+		diskInfoPtr = (DiskInfo*)malloc((*num_identifiers) * sizeof(DiskInfo));
+		disk_num = *num_identifiers;
+		result_diskinfos = getDiskInfos(adapterInfoPtr, &disk_num);
+		if (result_diskinfos != FUNC_RET_OK && result_diskinfos != FUNC_RET_BUFFER_TOO_SMALL) {
+			free(diskInfoPtr);
+			free(adapterInfoPtr);
+			return generate_ethernet_pc_id(identifiers, num_identifiers, true);
+		}
+		function_return = FUNC_RET_OK;
 
-	free(diskInfos);
-	free(adapterInfos);
-	return FUNC_RET_OK;
+		caller_identifiers = *num_identifiers;
+		for (i = 0; i < disk_num; i++) {
+			for (j = 0; j < adapter_num ; j++) {
+				array_index = i * adapter_num + j;
+				if (array_index>=caller_identifiers)	{
+					function_return = FUNC_RET_BUFFER_TOO_SMALL;
+					//sweet memories...
+					goto end;
+				}
+				for (k = 0; k < 6; k++)
+					identifiers[array_index][k] =
+					diskInfoPtr[i].disk_sn[k + 2]
+					^ adapterInfoPtr[j].mac_address[k + 2];
+			}
+		}
+end:
+		*num_identifiers = min(*num_identifiers, adapter_num * disk_num);
+		free(diskInfoPtr);
+		free(adapterInfoPtr);
+	}
+	return function_return;
 }
 
 static FUNCTION_RETURN generate_ethernet_pc_id(PcIdentifier * identifiers,
-		unsigned int * num_identifiers, int use_mac) {
-	size_t adapters;
-	int defined_adapters;
+											   unsigned int * num_identifiers, int use_mac) {
 	FUNCTION_RETURN result_adapterInfos;
 	unsigned int i, j, k;
 	OsAdapterInfo *adapterInfos;
+	size_t defined_adapters, adapters = 0;
 
-	result_adapterInfos = getAdapterInfos(NULL, &adapters);
-	if (result_adapterInfos != FUNC_RET_OK) {
-		return result_adapterInfos;
-	}
 
-	defined_adapters = *num_identifiers;
-	*num_identifiers = adapters;
-	if (identifiers == NULL) {
-		return FUNC_RET_OK;
-	} else if (adapters > defined_adapters) {
-		return FUNC_RET_BUFFER_TOO_SMALL;
-	}
-
-	adapterInfos = (OsAdapterInfo*)malloc(adapters * sizeof(OsAdapterInfo));
-	result_adapterInfos = getAdapterInfos(adapterInfos, &adapters);
-	for (j = 0; j < adapters; j++) {
-		for (k = 0; k < 6; k++)
-			if (use_mac) {
-				identifiers[j][k] = adapterInfos[j].mac_address[k + 2];
-			} else {
-				//use ip
-				if (k < 4) {
-					identifiers[j][k] = adapterInfos[j].ipv4_address[k];
-				} else {
-					//padding
-					identifiers[j][k] = 42;
+	if (identifiers == NULL || *num_identifiers == 0) {
+		result_adapterInfos = getAdapterInfos(NULL, &adapters);
+		if (result_adapterInfos == FUNC_RET_OK || result_adapterInfos == FUNC_RET_BUFFER_TOO_SMALL) {
+			*num_identifiers = adapters;
+			result_adapterInfos=FUNC_RET_OK;
+		}
+	} else {
+		defined_adapters = adapters = *num_identifiers;
+		adapterInfos = (OsAdapterInfo*)malloc(adapters * sizeof(OsAdapterInfo));
+		result_adapterInfos = getAdapterInfos(adapterInfos, &adapters);
+		if (result_adapterInfos == FUNC_RET_BUFFER_TOO_SMALL || result_adapterInfos == FUNC_RET_OK){
+			for (j = 0; j < adapters; j++) {
+				for (k = 0; k < 6; k++)
+				if (use_mac) {
+					identifiers[j][k] = adapterInfos[j].mac_address[k + 2];
+				}
+				else {
+					//use ip
+					if (k < 4) {
+						identifiers[j][k] = adapterInfos[j].ipv4_address[k];
+					}
+					else {
+						//padding
+						identifiers[j][k] = 42;
+					}
 				}
 			}
+			result_adapterInfos = (adapters>defined_adapters ? FUNC_RET_BUFFER_TOO_SMALL : FUNC_RET_OK);
+		}
+		free(adapterInfos);
 	}
-	free(adapterInfos);
-	return FUNC_RET_OK;
+	return result_adapterInfos;
 }
 
 static FUNCTION_RETURN generate_disk_pc_id(PcIdentifier * identifiers,
-		unsigned int * num_identifiers, bool use_label) {
-	size_t disk_num, available_disk_info=0;
+										   unsigned int * num_identifiers, bool use_label) {
+	size_t disk_num, available_disk_info = 0;
 	FUNCTION_RETURN result_diskinfos;
 	unsigned int i, k, j;
 	int defined_identifiers;
@@ -116,7 +134,7 @@
 	if (result_diskinfos != FUNC_RET_OK) {
 		return result_diskinfos;
 	}
-	diskInfos = (DiskInfo*) malloc(disk_num * sizeof(DiskInfo));
+	diskInfos = (DiskInfo*)malloc(disk_num * sizeof(DiskInfo));
 	//memset(diskInfos,0,disk_num * sizeof(DiskInfo));
 	result_diskinfos = getDiskInfos(diskInfos, &disk_num);
 	if (result_diskinfos != FUNC_RET_OK) {
@@ -133,22 +151,24 @@
 	if (identifiers == NULL) {
 		free(diskInfos);
 		return FUNC_RET_OK;
-	} else if (available_disk_info > defined_identifiers) {
+	}
+	else if (available_disk_info > defined_identifiers) {
 		free(diskInfos);
 		return FUNC_RET_BUFFER_TOO_SMALL;
 	}
 
-	j=0;
+	j = 0;
 	for (i = 0; i < disk_num; i++) {
-		if(use_label){
-			if(diskInfos[i].label[0]!=0){
-				memset(identifiers[j],0,sizeof(PcIdentifier)); //!!!!!!!
-				strncpy(identifiers[j],diskInfos[i].label,sizeof(PcIdentifier));
+		if (use_label){
+			if (diskInfos[i].label[0] != 0){
+				memset(identifiers[j], 0, sizeof(PcIdentifier)); //!!!!!!!
+				strncpy(identifiers[j], diskInfos[i].label, sizeof(PcIdentifier));
 				j++;
 			}
-		}else{
-			if(diskInfos[i].disk_sn[0]!=0){
-				memcpy(identifiers[j],&diskInfos[i].disk_sn[2],sizeof(PcIdentifier));
+		}
+		else{
+			if (diskInfos[i].disk_sn[0] != 0){
+				memcpy(identifiers[j], &diskInfos[i].disk_sn[2], sizeof(PcIdentifier));
 				j++;
 			}
 		}
@@ -174,7 +194,7 @@
  */
 
 FUNCTION_RETURN generate_pc_id(PcIdentifier * identifiers,
-		unsigned int * array_size, IDENTIFICATION_STRATEGY strategy) {
+							   unsigned int * array_size, IDENTIFICATION_STRATEGY strategy) {
 	FUNCTION_RETURN result;
 	unsigned int i, j;
 	const unsigned int original_array_size = *array_size;
@@ -184,10 +204,10 @@
 		result = generate_default_pc_id(identifiers, array_size);
 		break;
 	case ETHERNET:
-		result = generate_ethernet_pc_id(identifiers, array_size, true );
+		result = generate_ethernet_pc_id(identifiers, array_size, true);
 		break;
 	case IP_ADDRESS:
-		result = generate_ethernet_pc_id(identifiers, array_size, false );
+		result = generate_ethernet_pc_id(identifiers, array_size, false);
 		break;
 	case DISK_NUM:
 		result = generate_disk_pc_id(identifiers, array_size, false);
@@ -240,23 +260,23 @@
 }
 
 FUNCTION_RETURN encode_pc_id(PcIdentifier identifier1, PcIdentifier identifier2,
-		PcSignature pc_identifier_out) {
-//TODO base62 encoding, now uses base64
+							 PcSignature pc_identifier_out) {
+	//TODO base62 encoding, now uses base64
 	PcIdentifier concat_identifiers[2];
 	char* b64_data;
 	int b64_size = 0;
-	size_t concatIdentifiersSize = sizeof(PcIdentifier) * 2;
-//concat_identifiers = (PcIdentifier *) malloc(concatIdentifiersSize);
+	size_t concatIdentifiersSize = sizeof(PcIdentifier)* 2;
+	//concat_identifiers = (PcIdentifier *) malloc(concatIdentifiersSize);
 	memcpy(&concat_identifiers[0], identifier1, sizeof(PcIdentifier));
 	memcpy(&concat_identifiers[1], identifier2, sizeof(PcIdentifier));
 	b64_data = base64(concat_identifiers, concatIdentifiersSize,
-			&b64_size);
+					  &b64_size);
 	if (b64_size > sizeof(PcSignature)) {
 		return FUNC_RET_BUFFER_TOO_SMALL;
 	}
 	sprintf(pc_identifier_out, "%.4s-%.4s-%.4s-%.4s", &b64_data[0],
 			&b64_data[4], &b64_data[8], &b64_data[12]);
-//free(concat_identifiers);
+	//free(concat_identifiers);
 	free(b64_data);
 	return FUNC_RET_OK;
 }
@@ -266,7 +286,7 @@
 }
 
 FUNCTION_RETURN generate_user_pc_signature(PcSignature identifier_out,
-		IDENTIFICATION_STRATEGY strategy) {
+										   IDENTIFICATION_STRATEGY strategy) {
 	FUNCTION_RETURN result;
 	PcIdentifier* identifiers;
 	unsigned int req_buffer_size = 0;
@@ -278,8 +298,8 @@
 		return FUNC_RET_ERROR;
 	}
 	req_buffer_size = req_buffer_size < 2 ? 2 : req_buffer_size;
-	identifiers = (PcIdentifier *) malloc(
-			sizeof(PcIdentifier) * req_buffer_size);
+	identifiers = (PcIdentifier *)malloc(
+		sizeof(PcIdentifier)* req_buffer_size);
 	result = generate_pc_id(identifiers, &req_buffer_size, strategy);
 	if (result != FUNC_RET_OK) {
 		free(identifiers);
@@ -305,28 +325,28 @@
  * @return
  */
 static FUNCTION_RETURN decode_pc_id(PcIdentifier identifier1_out,
-		PcIdentifier identifier2_out, PcSignature pc_signature_in) {
-//TODO base62 encoding, now uses base64
+									PcIdentifier identifier2_out, PcSignature pc_signature_in) {
+	//TODO base62 encoding, now uses base64
 
 	unsigned char * concat_identifiers;
 	char base64ids[17];
 	int identifiers_size;
 
 	sscanf(pc_signature_in, "%4s-%4s-%4s-%4s", &base64ids[0], &base64ids[4],
-			&base64ids[8], &base64ids[12]);
+		   &base64ids[8], &base64ids[12]);
 	concat_identifiers = unbase64(base64ids, 16, &identifiers_size);
-	if (identifiers_size > sizeof(PcIdentifier) * 2) {
+	if (identifiers_size > sizeof(PcIdentifier)* 2) {
 		return FUNC_RET_BUFFER_TOO_SMALL;
 	}
 	memcpy(identifier1_out, concat_identifiers, sizeof(PcIdentifier));
 	memcpy(identifier2_out, concat_identifiers + sizeof(PcIdentifier),
-			sizeof(PcIdentifier));
+		   sizeof(PcIdentifier));
 	free(concat_identifiers);
 	return FUNC_RET_OK;
 }
 
 static IDENTIFICATION_STRATEGY strategy_from_pc_id(PcIdentifier identifier) {
-	return (IDENTIFICATION_STRATEGY) identifier[0] >> 5;
+	return (IDENTIFICATION_STRATEGY)identifier[0] >> 5;
 }
 
 EVENT_TYPE validate_pc_signature(PcSignature str_code) {
@@ -336,7 +356,7 @@
 	PcIdentifier* calculated_identifiers = NULL;
 	unsigned int calc_identifiers_size = 0;
 	int i = 0, j = 0;
-//bool found;
+	//bool found;
 #ifdef _DEBUG
 	printf("Comparing pc identifiers: \n");
 #endif
@@ -345,7 +365,7 @@
 		return result;
 	}
 	previous_strategy_id = STRATEGY_UNKNOWN;
-//found = false;
+	//found = false;
 	for (i = 0; i < 2; i++) {
 		current_strategy_id = strategy_from_pc_id(user_identifiers[i]);
 		if (current_strategy_id == STRATEGY_UNKNOWN) {
@@ -357,22 +377,22 @@
 			}
 			previous_strategy_id = current_strategy_id;
 			generate_pc_id(NULL, &calc_identifiers_size, current_strategy_id);
-			calculated_identifiers = (PcIdentifier *) malloc(
-					sizeof(PcIdentifier) * calc_identifiers_size);
+			calculated_identifiers = (PcIdentifier *)malloc(
+				sizeof(PcIdentifier)* calc_identifiers_size);
 			generate_pc_id(calculated_identifiers, &calc_identifiers_size,
-					current_strategy_id);
+						   current_strategy_id);
 		}
 		//maybe skip the byte 0
 		for (j = 0; j < calc_identifiers_size; j++) {
 #ifdef _DEBUG
 			printf("generated id: %02x%02x%02x%02x%02x%02x index %d, user_supplied id %02x%02x%02x%02x%02x%02x idx: %d\n",
-					calculated_identifiers[j][0],calculated_identifiers[j][1],calculated_identifiers[j][2],
-					calculated_identifiers[j][3],calculated_identifiers[j][4],calculated_identifiers[j][5],j,
-					user_identifiers[i][0],user_identifiers[i][1],user_identifiers[i][2],user_identifiers[i][3],user_identifiers[i][4],user_identifiers[i][5],i);
+				   calculated_identifiers[j][0], calculated_identifiers[j][1], calculated_identifiers[j][2],
+				   calculated_identifiers[j][3], calculated_identifiers[j][4], calculated_identifiers[j][5], j,
+				   user_identifiers[i][0], user_identifiers[i][1], user_identifiers[i][2], user_identifiers[i][3], user_identifiers[i][4], user_identifiers[i][5], i);
 
 #endif
 			if (!memcmp(user_identifiers[i], calculated_identifiers[j],
-					sizeof(PcIdentifier))) {
+				sizeof(PcIdentifier))) {
 				free(calculated_identifiers);
 				return LICENSE_OK;
 			}

--
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