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Switch IDNA implementation to libidn2 [BZ #19728] [BZ #19729] [BZ #22247]

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This provides an implementation of the IDNA2008 standard and fixes
CVE-2016-6261, CVE-2016-6263, CVE-2017-14062.
This commit is contained in:
Florian Weimer
2018-05-23 15:26:19 +02:00
parent 5f7b841d3a
commit 7f9f1ecb71
44 changed files with 1351 additions and 19143 deletions
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27
inet/net-internal.h
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@ -29,6 +29,33 @@ int __inet6_scopeid_pton (const struct in6_addr *address,
libc_hidden_proto (__inet6_scopeid_pton)
/* IDNA conversion. These functions convert domain names between the
current multi-byte character set and the IDNA encoding. On
success, the result string is written to *RESULT (which the caller
has to free), and zero is returned. On error, an EAI_* error code
is returned (see <netdb.h>), and *RESULT is not changed. */
int __idna_to_dns_encoding (const char *name, char **result);
libc_hidden_proto (__idna_to_dns_encoding)
int __idna_from_dns_encoding (const char *name, char **result);
libc_hidden_proto (__idna_from_dns_encoding)
/* Return value of __idna_name_classify below. */
enum idna_name_classification
{
idna_name_ascii, /* No non-ASCII characters. */
idna_name_nonascii, /* Non-ASCII characters, no backslash. */
idna_name_nonascii_backslash, /* Non-ASCII characters with backslash. */
idna_name_encoding_error, /* Decoding error. */
idna_name_memory_error, /* Memory allocation failure. */
idna_name_error, /* Other error during decoding. Check errno. */
};
/* Check the specified name for non-ASCII characters and backslashes
or encoding errors. */
enum idna_name_classification __idna_name_classify (const char *name)
attribute_hidden;
/* Deadline handling for enforcing timeouts.
Code should call __deadline_current_time to obtain the current time