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pem_read_buffer() already update use_len after header and footer are read

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After header and footer are read, pem_read_buffer() is able to determine
the length of input data used. This allows calling functions to skip
this PEM bit if an error occurs during its parsing.
(cherry picked from commit 9255e8300e550b548b54603c77585921f442e391)
This commit is contained in:
Paul Bakker 2013-06-24 13:02:41 +02:00
parent b2a1140469
commit 00b2860e8d
5 changed files with 31 additions and 22 deletions
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6
library/error.c
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@ -213,8 +213,8 @@ void error_strerror( int ret, char *buf, size_t buflen )
#endif /* POLARSSL_MD_C */
#if defined(POLARSSL_PEM_C)
if( use_ret == -(POLARSSL_ERR_PEM_NO_HEADER_PRESENT) )
snprintf( buf, buflen, "PEM - No PEM header found" );
if( use_ret == -(POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT) )
snprintf( buf, buflen, "PEM - No PEM header or footer found" );
if( use_ret == -(POLARSSL_ERR_PEM_INVALID_DATA) )
snprintf( buf, buflen, "PEM - PEM string is not as expected" );
if( use_ret == -(POLARSSL_ERR_PEM_MALLOC_FAILED) )
@ -229,6 +229,8 @@ void error_strerror( int ret, char *buf, size_t buflen )
snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
if( use_ret == -(POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE) )
snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
if( use_ret == -(POLARSSL_ERR_PEM_BAD_INPUT_DATA) )
snprintf( buf, buflen, "PEM - Bad input parameters to function" );
#endif /* POLARSSL_PEM_C */
#if defined(POLARSSL_RSA_C)