diff options
| author | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-27 21:42:16 +0000 |
|---|---|---|
| committer | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-04-27 21:42:16 +0000 |
| commit | 2aa62f2bc9a9654687b377d9ca8a8c2c860a3852 (patch) | |
| tree | 62a0991a44327154fb88bf95bd6f7522053db7bb /StdLib/LibC/Stdio/vswprintf.c | |
| parent | 98790d814871cc30bbd536673d3a0948047cd2f0 (diff) | |
| download | edk2-platforms-2aa62f2bc9a9654687b377d9ca8a8c2c860a3852.tar.xz | |
Standard Libraries for EDK II.
This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc.
AppPkg contains applications that make use of the standard libraries defined in the StdLib Package.
StdLib contains header (include) files and the implementations of the standard libraries.
StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib. These files should never be directly referenced from applications or other code.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'StdLib/LibC/Stdio/vswprintf.c')
| -rw-r--r-- | StdLib/LibC/Stdio/vswprintf.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/StdLib/LibC/Stdio/vswprintf.c b/StdLib/LibC/Stdio/vswprintf.c new file mode 100644 index 0000000000..6d4cc3e656 --- /dev/null +++ b/StdLib/LibC/Stdio/vswprintf.c @@ -0,0 +1,94 @@ +/*
+ * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
+ * 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. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 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.
+
+ FreeBSD: src/lib/libc/stdio/vswprintf.c,v 1.6 2005/02/21 19:41:44 fjoe Exp
+ NetBSD: vswprintf.c,v 1.1 2005/05/14 23:51:02 christos Exp
+ */
+#include <LibConfig.h>
+#include <sys/EfiCdefs.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <stdarg.h>
+#include "reentrant.h"
+#include "local.h"
+
+int
+vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt,
+ va_list ap)
+{
+ static const mbstate_t initial = { 0 };
+ mbstate_t mbs;
+ FILE f;
+ char *mbp;
+ int ret, sverrno;
+ size_t nwc;
+ struct __sfileext fext;
+
+ if (n == 0) {
+ errno = EINVAL;
+ return (-1);
+ }
+
+ _FILEEXT_SETUP(&f, &fext);
+ f._file = -1;
+ f._flags = __SWR | __SSTR | __SALC;
+ f._bf._base = f._p = (unsigned char *)malloc(128);
+ if (f._bf._base == NULL) {
+ errno = ENOMEM;
+ return (-1);
+ }
+ f._bf._size = f._w = 127; /* Leave room for the NUL */
+ ret = __vfwprintf_unlocked(&f, fmt, ap);
+ if (ret < 0) {
+ sverrno = errno;
+ free(f._bf._base);
+ errno = sverrno;
+ return (-1);
+ }
+ *f._p = '\0';
+ mbp = (char *)f._bf._base;
+ /*
+ * XXX Undo the conversion from wide characters to multibyte that
+ * fputwc() did in __vfwprintf().
+ */
+ mbs = initial;
+ nwc = mbsrtowcs(s, (const char **)&mbp, n, &mbs);
+ free(f._bf._base);
+ if (nwc == (size_t)-1) {
+ errno = EILSEQ;
+ return (-1);
+ }
+ if (nwc == n) {
+ s[n - 1] = L'\0';
+ errno = EOVERFLOW;
+ return (-1);
+ }
+
+ return (ret);
+}
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