This splits the implementation responsibilities, and reduces embedded
code copies, which was one of the driving points with this project to
start with, so it's nice to give a good example.
Add recallocarray(), introduced in OpenBSD 6.1, and freezero(),
introduced in OpenBSD 6.2. The former is imported as-is from OpenBSD,
while the latter is the non-malloc-internal branch of the same code (and
also the OpenSSH portable variant).
Both of these originated in OpenBSD, but have also been implemented by
IllumOS, cf. https://www.illumos.org/issues/8546
Documentation for these functions is in malloc(3) upstream, the relevant
parts of which were previously imported in reallocarray(3bsd). Update
reallocarray(3bsd) with the changes that were introduced since, and add
the relevant bits for recallocarray() and freezero(), plus aliases.
[guillem@hadrons.org: Update copyright in COPYING. ]
Closes: !10
Signed-off-by: Guillem Jover <guillem@hadrons.org>
Do not depend on the system vwarn() and verr() functions to implement
the *c() variants, as the system might actually lack any of the <err.h>
BSD extensions.
Windows doesn't provide <sys/param.h>. Several libbsd sources require it
for MIN(), and these are useful non-system-specific macros anyway.
Signed-off-by: Guillem Jover <guillem@hadrons.org>
We cannot refer to a License short-name if that is not on its own
License paragraph. Split several other common License fields into
their own paragraphs to avoid this problem in the future.
Backport new changes from OpenBSD.
[guillem@hadrons.org:
- Update copyright years in COPYING. ]
References: https://svnweb.freebsd.org/base?view=revision&revision=281135
Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Signed-off-by: Guillem Jover <guillem@hadrons.org>
Reuse the getentropy code for Linux on the Hurd, which has fallbacks
for when the better interfaces are not present. And remove all the code
that is not supported currently on the Hurd. Ideally the Hurd should
get an equivalent interfaces that does not suffer from the same
problems as /dev/urandom.
The function is a duplicate of expand_number(), but covering less
prefixes and with a slightly different function signature.
Spotted-by: Peter da Silva <resuna@gmail.com>
Use local getprogname()/setprogname() instead of reimplementing them
locally. Use clearenv() if available, not just on glibc. Use bool
instead of _Bool. Use paranthesis on sizeof. Fold the SPT_MIN macro
into spt_min(). Make spt_init() static. Avoid unnecessary gotos.
Taken from NetBSD.
[guillem@hadrons.org:
- Import from NetBSD instead of FreeBSD to get a 3-clause BSD license,
instead of a 4-clause one.
- Define compatibility macros.
- Change library from libc to libbsd and header in man page.
- Add copyright information to COPYING.
- Add symbol to map file. ]
Signed-off-by: Guillem Jover <guillem@hadrons.org>
This avoids buffer overwrites during concurrent or intermixed calls to
fgetln() when using more than one different stream (currently 32), which
the original interface supports natively by using an internal buffer
from the FILE structure. Although this workaround is rudimentary, it
should cover most of the theoretically problematic cases.
