musl/src/network, branch v1.0.2

add fallback emulation for accept4 on old kernels

2014-02-22T03:25:26+00:00

the other atomic FD_CLOEXEC interfaces (dup3, pipe2, socket) already
had such emulation in place. the justification for doing the emulation
here is the same as for the other functions: it allows applications to
simply use accept4 rather than having to have their own fallback code
for ENOSYS/EINVAL (which one you get is arch-specific!) and there is
no reasonable way an application could benefit from knowing the
operation is emulated/non-atomic since there is no workaround at the
application level for non-atomicity (that is the whole reason these
interfaces were added).

add ipv6 and icmpv6 to getprotoent-family functions

2014-02-13T17:27:40+00:00

based on patch by orc.

fix typo in table for getprotoent that caused out-of-bound reads

2014-02-13T17:24:40+00:00

this was unlikely to lead to any crash or dangerous behavior, but
caused adjacent string constants to be treated as part of the
protocols table, possibly returning nonsensical results for unknown
protocol names/numbers or when getprotoent was called in a loop to
enumerate all protocols.

fix argument types for legacy function inet_makeaddr

2014-01-07T03:17:24+00:00

the type int was taken from seemingly erroneous man pages. glibc uses
in_addr_t (uint32_t), and semantically, the arguments should be
unsigned.

implement legacy function herror

2013-12-20T16:56:16+00:00

based on patch by Timo Teräs; greatly simplified to use fprintf.

include cleanups: remove unused headers and add feature test macros

2013-12-12T05:09:18+00:00

remove an unnecessary check in inet_pton

2013-12-12T04:18:34+00:00

at most 4 hexadecimal digits are processed in one field so the
value cannot overflow. the netdb.h header was not used.

support mix of IPv4 and v6 nameservers in resolv.conf

2013-11-30T18:33:29+00:00

a v6 socket will only be used if there is at least one v6 nameserver
address. if the kernel lacks v6 support, the code will fall back to
using a v4 socket and requests to v6 servers will silently fail. when
using a v6 socket, v4 addresses are converted to v4-mapped form and
setsockopt is used to ensure that the v6 socket can accept both v4 and
v6 traffic (this is on-by-default on Linux but the default is
configurable in /proc and so it needs to be set explicitly on the
socket level). this scheme avoids increasing resource usage during
lookups and allows the existing network io loop to be used without
modification.

previously, nameservers whose address family did not match the address
family of the first-listed nameserver were simply ignored. prior to
recent __ipparse fixes, they were not ignored but erroneously parsed.

reject invalid address families in getaddrinfo

2013-11-27T05:54:03+00:00

subsequent code assumes the address family requested is either
unspecified or one of IPv4/IPv6, and could malfunction if this
constraint is not met, so other address families should be explicitly
rejected.

remove duplicate includes from dynlink.c, strfmon.c and getaddrinfo.c

2013-11-25T23:34:10+00:00