When system calls indicate an error they return -1, not some arbitrary
value < 0. errno is only updated in this case. Change all (most?)
callers of syscalls to follow this better, and let's see if

When system calls indicate an error they return -1, not some arbitrary
value < 0. errno is only updated in this case. Change all (most?)
callers of syscalls to follow this better, and let's see if this strictness
helps us in the future.

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Add framework for resolving (pun intended) libc namespace issues, using
wrapper .h files and asm labels to let internal calls resolve directly and
not be overridable or use the PLT. Then, apply that

Add framework for resolving (pun intended) libc namespace issues, using
wrapper .h files and asm labels to let internal calls resolve directly and
not be overridable or use the PLT. Then, apply that framework to most of
the functions in stdio.h, string.h, err.h, and wchar.h. Delete the
should-have-been-hidden-all-along _v?(err|warn)[cx]? symbols while here.

tests clean on i386, amd64, sparc64, powerpc, and mips64

naming feedback from kettenis@ and millert@
ok kettenis@

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Move to the <limits.h> universe.
review by millert, binary checking process with doug, concept with guenther

Add additional userland interfaces for setting close-on-exec on fds
when creating them: mkostemp(), mkostemps(), the 'e' mode letter for
fopen(), freopen(), fdopen(), and popen(). The close-on-exec

Add additional userland interfaces for setting close-on-exec on fds
when creating them: mkostemp(), mkostemps(), the 'e' mode letter for
fopen(), freopen(), fdopen(), and popen(). The close-on-exec flag will
be cleared by the action created by posix_spawn_file_actions_adddup2().

Also, add support for the C11 'x' mode letter for fopen() and freopen(),
setting O_EXCL when possibly creating files.

Note: this requires kernel support for pipe2() and dup3()!

ok millert@

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make popen/pclose thread safe. closes library/5634. from and okay andreas@

zap remaining rcsid.

Kill old files that are no longer compiled.

okay theo

deregister (and deauto!). ok millert@ marco@

in pclose(), only fclose() a stream if it has been opened by popen(), so
that applications doing: 'ok = (pclose(f) != -1) || (fclose(f) == 0)'
can work safely and avoid a double-close of a stream. ok

in pclose(), only fclose() a stream if it has been opened by popen(), so
that applications doing: 'ok = (pclose(f) != -1) || (fclose(f) == 0)'
can work safely and avoid a double-close of a stream. ok millert@

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ansify function definitions and zap some `register'

ok millert@

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

Use the volatile specifier to fix warnings about variables being
clobbered by longjmp / vfork instead of the gcc "(void)&foo;" hack.

more pid_t use

correct type on last arg to execl(); nordin@cse.ogi.edu

make popen() safe for a real vfork()

Fix compiler warnings.

Clean up some -Wall complaints.

Fix a bogon in last change

Close pipes before dup'ing file descriptors in the child, not after.
From NetBSD PR #3673 by Dave Sainty <David.Sainty@MCS.VUW.AC.NZ>

Don't modify variables in the child since we vfork()'d to
get there (address space is shared between parent in child
in traditional vfork(2)). From FreeBSD (dyson).

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

close all pipes in child; netbsd pr#2575

initial import of NetBSD tree