70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
import os
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import argparse
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import base64
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import re
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import sys
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class Cert(object):
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def __init__(self, name, buff):
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self.name = name
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self.len = len(buff)
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self.buff = buff
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pass
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def __str__(self):
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out_str = ['\0']*32
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for i in range(len(self.name)):
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out_str[i] = self.name[i]
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out_str = "".join(out_str)
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out_str += str(chr(self.len & 0xFF))
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out_str += str(chr((self.len & 0xFF00) >> 8))
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out_str += self.buff
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return out_str
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def main():
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parser = argparse.ArgumentParser(description='Convert PEM file(s) into C source file.')
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parser.add_argument('--section',
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default='.servercert.flash',
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help='specify the section for the data (default is .servercert.flash)')
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parser.add_argument('--name',
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default='tls_server_cert_area',
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help='specify the variable name for the data (default is tls_server_cert_area)')
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parser.add_argument('file', nargs='+',
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help='One or more PEM files')
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args = parser.parse_args()
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cert_list = []
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cert_file_list = []
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for cert_file in args.file:
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with open(cert_file, 'r') as f:
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buff = f.read()
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m = re.search(r"-----BEGIN ([A-Z ]+)-----([^-]+?)-----END \1-----", buff, flags=re.DOTALL)
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if not m:
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sys.exit("Input file was not in PEM format")
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if "----BEGIN" in buff[m.end(0):]:
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sys.exit("Input file contains more than one PEM object")
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cert_list.append(Cert(m.group(1), base64.b64decode(''.join(m.group(2).split()))))
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print '__attribute__((section("%s"))) unsigned char %s[INTERNAL_FLASH_SECTOR_SIZE] = {' % (args.section, args.name)
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for _cert in cert_list:
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col = 0
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for ch in str(_cert):
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print ("0x%02x," % ord(ch)),
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if col & 15 == 15:
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print
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col = col + 1
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print '\n0xff};\n'
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if __name__ == '__main__':
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main()
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