musl/src/env, branch v0.8.2

bring back ___environ symbol (3 underscores)

2011-08-23T16:55:47+00:00

its existence doesn't hurt anything, and dynamic-linked binaries using
previous versions of musl were wrongly binding to it instead of
__environ.

security hardening: ensure suid programs have valid stdin/out/err

2011-08-23T13:37:39+00:00

this behavior (opening fds 0-2 for a suid program) is explicitly
allowed (but not required) by POSIX to protect badly-written suid
programs from clobbering files they later open.

this commit does add some cost in startup code, but the availability
of auxv and the security flag will be useful elsewhere in the future.
in particular auxv is needed for static-linked vdso support, which is
still waiting to be committed (sorry nik!)

fix for setenv bogus var argument handling

2011-07-29T00:43:40+00:00

thanks to mikachu

per POSIX:

The setenv() function shall fail if:

[EINVAL] The name argument is a null pointer, points to an empty
string, or points to a string containing an '=' character.

add startup abi functions, dummy for now. eventually needed for c++ support.

2011-04-06T20:40:19+00:00

initial check-in, version 0.5.0

2011-02-12T05:22:29+00:00