diff options
Diffstat (limited to 'lib/libc/stdio/perror.c')
-rw-r--r-- | lib/libc/stdio/perror.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/lib/libc/stdio/perror.c b/lib/libc/stdio/perror.c new file mode 100644 index 0000000..9f18551 --- /dev/null +++ b/lib/libc/stdio/perror.c @@ -0,0 +1,76 @@ +/* + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * 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. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)perror.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "namespace.h" +#include <sys/types.h> +#include <sys/uio.h> +#include <unistd.h> +#include <errno.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> +#include "un-namespace.h" +#include "libc_private.h" +#include "local.h" + +void +perror(s) + const char *s; +{ + char msgbuf[NL_TEXTMAX]; + struct iovec *v; + struct iovec iov[4]; + + v = iov; + if (s != NULL && *s != '\0') { + v->iov_base = (char *)s; + v->iov_len = strlen(s); + v++; + v->iov_base = ": "; + v->iov_len = 2; + v++; + } + strerror_r(errno, msgbuf, sizeof(msgbuf)); + v->iov_base = msgbuf; + v->iov_len = strlen(v->iov_base); + v++; + v->iov_base = "\n"; + v->iov_len = 1; + FLOCKFILE(stderr); + __sflush(stderr); + (void)_writev(stderr->_file, iov, (v - iov) + 1); + stderr->_flags &= ~__SOFF; + FUNLOCKFILE(stderr); +} |