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Merge pull request #7638 from AndrzejKurek/cert-apps-use-ips

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Use better IP parsing in x509 apps
This commit is contained in:
Paul Elliott
2023-06-20 17:21:04 +01:00
committed by GitHub
parent cd70070c25 c6beb3a741
commit 458b96b1a7
6 changed files with 48 additions and 92 deletions
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17
include/mbedtls/x509.h
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@ -500,6 +500,23 @@ int mbedtls_x509_info_cert_type(char **buf, size_t *size,
int mbedtls_x509_info_key_usage(char **buf, size_t *size,
unsigned int key_usage);
/**
* \brief This function parses a CN string as an IP address.
*
* \param cn The CN string to parse. CN string MUST be null-terminated.
* \param dst The target buffer to populate with the binary IP address.
* The buffer MUST be 16 bytes to save IPv6, and should be
* 4-byte aligned if the result will be used as struct in_addr.
* e.g. uint32_t dst[4]
*
* \note \p cn is parsed as an IPv6 address if string contains ':',
* else \p cn is parsed as an IPv4 address.
*
* \return Length of binary IP address; num bytes written to target.
* \return \c 0 on failure to parse CN string as an IP address.
*/
size_t mbedtls_x509_crt_parse_cn_inet_pton(const char *cn, void *dst);
#define MBEDTLS_X509_SAFE_SNPRINTF \
do { \
if (ret < 0 || (size_t) ret >= n) \