1 files changed, 75 insertions, 0 deletions
diff --git a/lib/libc/stdio/perror.c b/lib/libc/stdio/perror.c
new file mode 100644
index 0000000..89c0798
--- /dev/null
+++ b/lib/libc/stdio/perror.c
@@ -0,0 +1,75 @@
+/*
+ * 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.
+ * 3. 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(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);
+}