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* port numbers should always be interpreted as decimalRich Felker2011-08-011-1/+1
| | | | | | | | | | | per POSIX and RFC 3493: If the specified address family is AF_INET, AF_INET6, or AF_UNSPEC, the service can be specified as a string specifying a decimal port number. 021 is a valid decimal number, therefore, interpreting it as octal seems to be non-conformant.
* disallow blank strings as service or host nameRich Felker2011-04-201-0/+3
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* return the requested string as the "canonical name" for numeric addressesRich Felker2011-04-081-0/+1
| | | | | | | | previously NULL was returned in ai_canonname, resulting in crashes in some callers. this behavior was incorrect. note however that the new behavior differs from glibc, which performs reverse dns lookups. POSIX is very clear that a reverse DNS lookup must not be performed for numeric addresses.
* fix all implicit conversion between signed/unsigned pointersRich Felker2011-03-251-1/+1
| | | | | | | sadly the C language does not specify any such implicit conversion, so this is not a matter of just fixing warnings (as gcc treats it) but actual errors. i would like to revisit a number of these changes and possibly revise the types used to reduce the number of casts required.
* initial check-in, version 0.5.0 v0.5.0Rich Felker2011-02-121-0/+224