Initial import.

src/cmd/sam/_libc.h

@@ -0,0 +1,40 @@
+#define __USE_UNIX98  // for pread/pwrite, supposedly
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <setjmp.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+
+#include "utf.h"
+#include "fmt.h"
+
+#define nil 0
+#define dup dup2
+#define exec execv
+#define seek lseek
+#define getwd getcwd
+#define USED(a)
+#define SET(a)
+
+enum {
+	OREAD = 0,
+	OWRITE = 1,
+	ORDWR = 2,
+	OCEXEC = 4,
+	ORCLOSE = 8
+};
+
+enum {
+	ERRMAX = 255
+};
+
+void exits(const char *);
+void _exits(const char *);
+int notify (void(*f)(void *, char *));
+int create(char *, int, int);
+int errstr(char *, int);