For putenv(3), return an error if string starts with a '=' character.
Both FreeBSD and NetBSD have this behavior. OK deraadt@

Delete casts to off_t and size_t that are implied by assignments
or prototypes. Ditto for some of the char* and void* casts too.

verified no change to instructions on ILP32 (i386) and LP64 (amd64)

Delete casts to off_t and size_t that are implied by assignments
or prototypes. Ditto for some of the char* and void* casts too.

verified no change to instructions on ILP32 (i386) and LP64 (amd64)
ok natano@ abluhm@ deraadt@ millert@

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Allow setenv(3) and putenv(3) to operate on a NULL environ pointer.
The getenv(3) and unsetenv(3) functions already support this.
This will make it easier to emulate the glibc clearenv() function in

Allow setenv(3) and putenv(3) to operate on a NULL environ pointer.
The getenv(3) and unsetenv(3) functions already support this.
This will make it easier to emulate the glibc clearenv() function in ports.
Based on a diff from and OK jca@

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environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strto

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

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using reallocarray() gives us multiplicative integer overflow checking
in case something wants to create massive amounts of environment, like
a bit more than 1/4 of a 32-bit address space. unrealist

using reallocarray() gives us multiplicative integer overflow checking
in case something wants to create massive amounts of environment, like
a bit more than 1/4 of a 32-bit address space. unrealistic -- but why
audit one code path, and not treat others the same? then you have to
re-engage everytime you see the code. read the news, that isn't what
developers do. At least if the code paths look the same, there is hope,
because they are easier to verify for correctness. developers need
to give other developers a chance to want to care.

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Make setenv(3) consistent with unsetenv(3), giving EINVAL if passed
an empty name, NULL pointer, or a name containing an '=' character.

OK millert@, guenther@

Check for duplicate variables in the environment when setting a value
via setenv() or putenv(). OK miod@

Make unsetenv(NULL) and unsetenv("") give EINVAL, per POSIX. ok deraadt@

Don't assume that we can overwrite strings in the environment.
Someone may have passed a read-only string to putenv() (I'm looking
at you cron!).

Make putenv(), setenv() and unsetenv() standards compliant. The
standard explicitly disallows passing setenv a name with a '=' in
it but historic BSD behavior is to allow this but to ignore the '='

Make putenv(), setenv() and unsetenv() standards compliant. The
standard explicitly disallows passing setenv a name with a '=' in
it but historic BSD behavior is to allow this but to ignore the '='
and anything after it.

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zap remaining rcsid.

Kill old files that are no longer compiled.

okay theo

ansi + de-register

ok otto deraadt

Stash the environment pointer we get from realloc() instead of just
setting a flag. That way when we are called again we can be sure
to realloc() the right thing, regardless of the current value of

Stash the environment pointer we get from realloc() instead of just
setting a flag. That way when we are called again we can be sure
to realloc() the right thing, regardless of the current value of
environ. When the stashed value != environ (or when we are called
for the first time), copy the existing entries from environ and set
environ to the new value. OK deraadt@, beck@, djm@

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Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

use proper __findenv() prototype; millert@ ok

a first pass at -Wall

Don't override environ if realloc() fails. Pointed out by
Dave Bodenstab <imdave@mcs.net>

Fix RCS ids
Make sure everything uses {SYS,}LIBC_SCCS properly

initial import of NetBSD tree