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Simplify code in mbedtls_x509_csr_parse

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Philippe Antoine 2018-06-14 07:35:11 +02:00 committed by Simon Butcher
parent 78657e52d8
commit dc58e59280
1 changed files with 10 additions and 18 deletions
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28
library/x509_csr.c
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@ -278,32 +278,24 @@ int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, siz
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA ); return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
#if defined(MBEDTLS_PEM_PARSE_C) #if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_init( &pem );
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */ /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( buf[buflen - 1] != '\0' ) if( buf[buflen - 1] == '\0' ) {
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT; mbedtls_pem_init( &pem );
else
ret = mbedtls_pem_read_buffer( &pem, ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN CERTIFICATE REQUEST-----", "-----BEGIN CERTIFICATE REQUEST-----",
"-----END CERTIFICATE REQUEST-----", "-----END CERTIFICATE REQUEST-----",
buf, NULL, 0, &use_len ); buf, NULL, 0, &use_len );
if( ret == 0 ) if( ret == 0 )
{ /*
/* * Was PEM encoded, parse the result
* Was PEM encoded, parse the result */
*/ ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen );
ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen );
mbedtls_pem_free( &pem ); mbedtls_pem_free( &pem );
return( ret ); if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
} }
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
mbedtls_pem_free( &pem );
return( ret );
}
else
#endif /* MBEDTLS_PEM_PARSE_C */ #endif /* MBEDTLS_PEM_PARSE_C */
return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) ); return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) );
} }