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Enhance documentation of mbedtls_ssl_set_hostname

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(1) Add missing error condition
(2) Specify allowance and effect of of NULL hostname parameter
(3) Describe effect of function on failure
This commit is contained in:
Hanno Becker 2017-04-07 12:59:32 +01:00 committed by Simon Butcher
parent 39f5d359f5
commit f5f9d11acc
1 changed files with 14 additions and 6 deletions
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20
include/mbedtls/ssl.h
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@ -1794,15 +1794,23 @@ void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/**
* \brief Set the hostname to check against the received server
* certificate. It sets the ServerName TLS extension too,
* if the extension is enabled.
* (client-side only)
* \brief Set or reset the hostname to check against the received
* server certificate. It sets the ServerName TLS extension,
* too, if that extension is enabled. (client-side only)
*
* \param ssl SSL context
* \param hostname the server hostname
* \param hostname the server hostname, may be NULL to clear hostname
* \note Maximum hostname length MBEDTLS_SSL_MAX_HOST_NAME_LEN.
*
* \return 0 if successful, MBEDTLS_ERR_SSL_ALLOC_FAILED on
* allocation failure, MBEDTLS_ERR_BAD_INPUT_DATA on
* too long input hostname.
*
* \post Hostname set to the one provided on success (cleared
* when NULL). On allocation failure hostname is cleared.
* On too long input failure, old hostname is unchanged.
*
* \return 0 if successful or MBEDTLS_ERR_SSL_ALLOC_FAILED
*/
int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname );
#endif /* MBEDTLS_X509_CRT_PARSE_C */