1 /*############################################################################ 2 # Copyright 2017 Intel Corporation 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 ############################################################################*/ 16 /// Implements ResizeOctStr 17 /*! \file */ 18 19 #include "epid/member/src/resize.h" 20 21 #include <stdint.h> 22 #include "epid/common/src/memory.h" 23 24 EpidStatus ResizeOctStr(ConstOctStr a, size_t a_size, OctStr r, size_t r_size) { 25 if (!a || !a_size || !r || !r_size) return kEpidBadArgErr; 26 if (a_size <= r_size) { 27 memset(r, 0, r_size - a_size); 28 if (memcpy_S((uint8_t*)r + (r_size - a_size), a_size, a, a_size)) 29 return kEpidErr; 30 } else { 31 size_t i; 32 for (i = 0; i < a_size - r_size; i++) { 33 if (((uint8_t*)a)[i]) 34 return kEpidBadArgErr; // a does not fit into r_size 35 } 36 if (memcpy_S(r, r_size, (uint8_t*)a + (a_size - r_size), r_size)) 37 return kEpidErr; 38 } 39 return kEpidNoErr; 40 } 41
