1 files changed, 87 insertions, 0 deletions
diff --git a/win32/win32.c b/win32/win32.c
new file mode 100644
index 000000000000..168f7e7cc041
--- /dev/null
+++ b/win32/win32.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2012 - 2014 Tony Finch <dot@dotat.at>
+ *
+ * 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 "unifdef.h"
+
+/*
+ * The Windows implementation of rename() fails if the new filename
+ * already exists. Atomic replacement is not really needed, so just
+ * remove anything that might be in the way before renaming.
+ */
+int
+replace(const char *old, const char *new)
+{
+	if (remove(new) < 0)
+		warn("can't remove \"%s\"", new);
+	return (rename(old, new));
+}
+
+FILE *
+mktempmode(char *tmp, int mode)
+{
+	mode = mode;
+	return (fopen(_mktemp(tmp), "wb"));
+}
+
+FILE *
+fbinmode(FILE *fp)
+{
+	_setmode(_fileno(fp), _O_BINARY);
+	return (fp);
+}
+
+/*
+ * Windows has _snprintf() but it does not work like real snprintf().
+ */
+int snprintf(char *buf, size_t buflen, const char *format, ...)
+{
+	va_list ap;
+	int outlen, cpylen, tmplen;
+	char *tmp;
+
+	va_start(ap, format);
+	outlen = _vscprintf(format, ap);
+	va_end(ap);
+	if (buflen == 0 || outlen < 0)
+		return outlen;
+	if (buflen > outlen)
+		cpylen = outlen;
+	else
+		cpylen = buflen - 1;
+	/* Paranoia about off-by-one errors in _snprintf() */
+	tmplen = outlen + 2;
+
+	tmp = malloc(tmplen);
+	if (tmp == NULL)
+		err(2, "malloc");
+	va_start(ap, format);
+	_vsnprintf(tmp, tmplen, format, ap);
+	va_end(ap);
+	memcpy(buf, tmp, cpylen);
+	buf[cpylen] = '\0';
+	free(tmp);
+
+	return outlen;
+}