87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/****************************************************************************
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* binfmt/libnxflat/libnxflat_verify.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <debug.h>
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#include <errno.h>
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#include <arpa/inet.h>
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#include <nuttx/binfmt/nxflat.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Constant Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxflat_verifyheader
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*
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* Description:
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* Given the header from a possible NXFLAT executable, verify that it
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* is an NXFLAT executable.
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*
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* Returned Value:
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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****************************************************************************/
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int nxflat_verifyheader(const struct nxflat_hdr_s *header)
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{
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if (!header)
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{
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berr("NULL NXFLAT header!");
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return -ENOEXEC;
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}
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/* Check the FLT header -- magic number and revision.
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*
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* If the magic number does not match. Just return
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* silently. This is not our binary.
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*/
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if (strncmp(header->h_magic, NXFLAT_MAGIC, 4) != 0)
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{
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berr("Unrecognized magic=\"%c%c%c%c\"\n",
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header->h_magic[0], header->h_magic[1],
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header->h_magic[2], header->h_magic[3]);
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return -ENOEXEC;
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}
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return OK;
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}
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