summaryrefslogtreecommitdiffstats
path: root/lib/libc/stdio/vdprintf.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libc/stdio/vdprintf.c')
-rw-r--r--lib/libc/stdio/vdprintf.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/lib/libc/stdio/vdprintf.c b/lib/libc/stdio/vdprintf.c
new file mode 100644
index 0000000..454b0f9
--- /dev/null
+++ b/lib/libc/stdio/vdprintf.c
@@ -0,0 +1,70 @@
+/*-
+ * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Copyright (c) 2011 The FreeBSD Foundation
+ * All rights reserved.
+ * Portions of this software were developed by David Chisnall
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * 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 <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include "un-namespace.h"
+
+#include "local.h"
+#include "xlocale_private.h"
+
+int
+vdprintf(int fd, const char * __restrict fmt, va_list ap)
+{
+ FILE f = FAKE_FILE;
+ unsigned char buf[BUFSIZ];
+ int ret;
+
+ if (fd > SHRT_MAX) {
+ errno = EMFILE;
+ return (EOF);
+ }
+
+ f._p = buf;
+ f._w = sizeof(buf);
+ f._flags = __SWR;
+ f._file = fd;
+ f._cookie = &f;
+ f._write = __swrite;
+ f._bf._base = buf;
+ f._bf._size = sizeof(buf);
+
+ if ((ret = __vfprintf(&f, __get_locale(), fmt, ap)) < 0)
+ return (ret);
+
+ return (__fflush(&f) ? EOF : ret);
+}
OpenPOWER on IntegriCloud