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* workaround broken msghdr struct on 64bit linuxRich Felker2011-04-082-0/+21
| | | | | | | | | | | POSIX clearly specifies the type of msg_iovlen and msg_controllen, and Linux ignores it and makes them both size_t instead. to work around this we add padding (instead of just using the wrong types like glibc does), but we also need to patch-up the struct before passing it to the kernel in case the caller did not zero-fill it. if i could trust the kernel to just ignore the upper 32 bits, this would not be necessary, but i don't think it will ignore them...
* fix ipv6 address printing: 2001 appeared as 201, etc.Rich Felker2011-04-081-3/+5
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* fix broken dns response parsing code that made most ipv6 lookups failRich Felker2011-04-081-4/+6
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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 uninitialized variables in dns lookup codeRich Felker2011-04-071-2/+2
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* add _res (__res_state()) dummyRich Felker2011-04-061-0/+9
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* implement if_indextoname and if_nametoindex functionsRich Felker2011-04-052-0/+36
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* 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.
* cleanup socketcall syscall interface to ease porting to sane(r) archsRich Felker2011-02-1519-94/+17
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* another pointer signedness fixRich Felker2011-02-141-1/+1
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* initial check-in, version 0.5.0 v0.5.0Rich Felker2011-02-1255-0/+1570