1 files changed, 90 insertions, 0 deletions
diff --git a/acme/bin/source/win/util.c b/acme/bin/source/win/util.c
new file mode 100644
index 000000000..ec8bd0c99
--- /dev/null
+++ b/acme/bin/source/win/util.c
@@ -0,0 +1,90 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <thread.h>
+#include "dat.h"
+
+void*
+emalloc(uint n)
+{
+	void *p;
+
+	p = malloc(n);
+	if(p == nil)
+		error("can't malloc: %r");
+	memset(p, 0, n);
+	return p;
+}
+
+char*
+estrdup(char *s)
+{
+	char *t;
+
+	t = emalloc(strlen(s)+1);
+	strcpy(t, s);
+	return t;
+}
+
+char*
+estrstrdup(char *s, char *t)
+{
+	char *u;
+
+	u = emalloc(strlen(s)+strlen(t)+1);
+	sprint(u, "%s%s", s, t);
+	return u;
+}
+
+char*
+eappend(char *s, char *sep, char *t)
+{
+	char *u;
+
+	if(t == nil)
+		u = estrstrdup(s, sep);
+	else{
+		u = emalloc(strlen(s)+strlen(sep)+strlen(t)+1);
+		sprint(u, "%s%s%s", s, sep, t);
+	}
+	free(s);
+	return u;
+}
+
+char*
+egrow(char *s, char *sep, char *t)
+{
+	s = eappend(s, sep, t);
+	free(t);
+	return s;
+}
+
+void
+error(char *fmt, ...)
+{
+	Fmt f;
+	char buf[64];
+	va_list arg;
+
+	fmtfdinit(&f, 2, buf, sizeof buf);
+	fmtprint(&f, "win: ");
+	va_start(arg, fmt);
+	fmtvprint(&f, fmt, arg);
+	va_end(arg);
+	fmtprint(&f, "\n");
+	fmtfdflush(&f);
+	threadexitsall(fmt);
+}
+
+void
+ctlprint(int fd, char *fmt, ...)
+{
+	int n;
+	va_list arg;
+
+	va_start(arg, fmt);
+	n = vfprint(fd, fmt, arg);
+	va_end(arg);
+	if(n <= 0)
+		error("control file write error: %r");
+}