diff options
| author | Manuel Pégourié-Gonnard <mpg@elzevir.fr> | 2015-06-22 11:12:02 +0200 |
|---|---|---|
| committer | Manuel Pégourié-Gonnard <mpg@elzevir.fr> | 2015-06-22 14:42:04 +0200 |
| commit | 1685368408dc8cbb8a26e22c39fb3f2cdf1c76dc (patch) | |
| tree | b2fd4f1c12f9cf51a756611232bbcff68f18600c /include/mbedtls/x509.h | |
| parent | 7b6dcbe99328e18e1813298001f200d08dd0fe71 (diff) | |
Rationalize snprintf() usage in X.509 modules
Diffstat (limited to 'include/mbedtls/x509.h')
| -rw-r--r-- | include/mbedtls/x509.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h index 2afe4fa7..59986d83 100644 --- a/include/mbedtls/x509.h +++ b/include/mbedtls/x509.h @@ -76,6 +76,7 @@ #define MBEDTLS_ERR_X509_BAD_INPUT_DATA -0x2800 /**< Input invalid. */ #define MBEDTLS_ERR_X509_ALLOC_FAILED -0x2880 /**< Allocation of memory failed. */ #define MBEDTLS_ERR_X509_FILE_IO_ERROR -0x2900 /**< Read/write of file failed. */ +#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL -0x2980 /**< Destination buffer is too small. */ /* \} name */ /** @@ -306,6 +307,15 @@ int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start, const char *oid, size_t oid_len, unsigned char *sig, size_t size ); +#define MBEDTLS_X509_SAFE_SNPRINTF \ + do { \ + if( ret < 0 || (size_t) ret >= n ) \ + return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL ); \ + \ + n -= (size_t) ret; \ + p += (size_t) ret; \ + } while( 0 ) + #ifdef __cplusplus } #endif |