- string_utilities.c: added checks if memory allocation fails

src/common/string_utilities.c

@@ -30,9 +30,11 @@ StringUtils_copySubString(char* startPos, char* endPos)
 
 	char* newString = (char*) GLOBAL_MALLOC(newStringLength + 1);
 
+	if (newString) {
 	    memcpy(newString, startPos, newStringLength);
 
 	    newString[newStringLength] = 0;
+	}
 
 	return newString;
 }
@@ -44,6 +46,7 @@ StringUtils_copyString(const char* string)
 
 	char* newString = (char*) GLOBAL_MALLOC(newStringLength);
 
+	if (newString)
 	    memcpy(newString, string, newStringLength);
 
 	return newString;
@@ -65,8 +68,10 @@ StringUtils_createStringFromBuffer(const uint8_t* buf, int size)
 {
 	char* newStr = (char*) GLOBAL_MALLOC(size + 1);
 
+	if (newStr) {
 	    memcpy(newStr, buf, size);
 	    newStr[size] = 0;
+	}
 
 	return newStr;
 }
@@ -120,8 +125,9 @@ StringUtils_createString(int count, ...)
 	va_end(ap);
 
 	newStr = (char*) GLOBAL_MALLOC(newStringLength + 1);
-	currentPos = newStr;
 
+	if (newStr) {
+	    currentPos = newStr;
 
 	    va_start(ap, count);
 	    for (i = 0; i < count; i++) {
@@ -132,6 +138,7 @@ StringUtils_createString(int count, ...)
 	    va_end(ap);
 
 	    *currentPos = 0;
+	}
 
 	return newStr;
 }