Accept a trailing space at end of PEM lines

With certs being copy-pasted from webmails and all, this will probably become
more and more common.

closes #226
parent e96ce08a
......@@ -14,6 +14,8 @@ Bugfix
installed (found by Rawi666).
* Fix compile error with armcc 5 with --gnu option.
Changes
* The PEM parser now accepts a trailing space at end of lines (#226).
= mbed TLS 2.0.0 released 2015-07-13
......
......@@ -236,12 +236,14 @@ int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const
return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
s1 += strlen( header );
if( *s1 == ' ' ) s1++;
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
end = s2;
end += strlen( footer );
if( *end == ' ' ) end++;
if( *end == '\r' ) end++;
if( *end == '\n' ) end++;
*use_len = end - data;
......
-----BEGIN CERTIFICATE-----
MIIDwjCCAaqgAwIBAgIBEDANBgkqhkiG9w0BAQsFADBIMQswCQYDVQQGEwJOTDER
MA8GA1UEChMIUG9sYXJTU0wxJjAkBgNVBAMTHVBvbGFyU1NMIFRlc3QgSW50ZXJt
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a8Si6UK5
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIEATCCA4egAwIBAgIBDjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
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Af5cNR8KhzegznL6amRObGGKmX1F
-----END CERTIFICATE-----
......@@ -1368,3 +1368,7 @@ x509parse_crt_file:"data_files/server7_pem_space.crt":1
X509 File parse (all certificates fail)
depends_on:MBEDTLS_ECP_C
x509parse_crt_file:"data_files/server7_all_space.crt":MBEDTLS_ERR_PEM_INVALID_DATA + MBEDTLS_ERR_BASE64_INVALID_CHARACTER
X509 File parse (trailing spaces, OK)
depends_on:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
x509parse_crt_file:"data_files/server7_trailing_space.crt":0
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