diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/gen/Makefile.inc | 1 | ||||
| -rw-r--r-- | lib/libc/gen/Symbol.map | 1 | ||||
| -rw-r--r-- | lib/libc/gen/dup3.c | 59 |
3 files changed, 61 insertions, 0 deletions
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc index fac1e43..ce9a430 100644 --- a/lib/libc/gen/Makefile.inc +++ b/lib/libc/gen/Makefile.inc @@ -31,6 +31,7 @@ SRCS+= __getosreldate.c \ disklabel.c \ dlfcn.c \ drand48.c \ + dup3.c \ elf_utils.c \ erand48.c \ err.c \ diff --git a/lib/libc/gen/Symbol.map b/lib/libc/gen/Symbol.map index 9e6b38b..3cac832 100644 --- a/lib/libc/gen/Symbol.map +++ b/lib/libc/gen/Symbol.map @@ -383,6 +383,7 @@ FBSD_1.2 { FBSD_1.3 { clock_getcpuclockid; dirfd; + dup3; fdlopen; __FreeBSD_libc_enter_restricted_mode; getcontextx; diff --git a/lib/libc/gen/dup3.c b/lib/libc/gen/dup3.c new file mode 100644 index 0000000..ac8877c --- /dev/null +++ b/lib/libc/gen/dup3.c @@ -0,0 +1,59 @@ +/*- + * Copyright (c) 2012 Jukka A. Ukkonen + * All rights reserved. + * + * This software was developed by Jukka Ukkonen for FreeBSD. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "namespace.h" +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include "un-namespace.h" + +int +__dup3(int oldfd, int newfd, int flags) +{ + int how; + + if (oldfd == newfd) { + errno = EINVAL; + return (-1); + } + + if (flags & ~O_CLOEXEC) { + errno = EINVAL; + return (-1); + } + + how = (flags & O_CLOEXEC) ? F_DUP2FD_CLOEXEC : F_DUP2FD; + + return (_fcntl(oldfd, how, newfd)); +} + +__weak_reference(__dup3, dup3); +__weak_reference(__dup3, _dup3); |
