1 files changed, 78 insertions, 0 deletions
diff --git a/include/compat/unistd.h b/include/compat/unistd.h
new file mode 100644
index 0000000..5e6ab1d
--- /dev/null
+++ b/include/compat/unistd.h
@@ -0,0 +1,78 @@
+/*
+ * Public domain
+ * unistd.h compatibility shim
+ */
+
+#ifndef LIBCRYPTOCOMPAT_UNISTD_H
+#define LIBCRYPTOCOMPAT_UNISTD_H
+
+#ifndef _MSC_VER
+
+#include_next <unistd.h>
+
+#ifdef __MINGW32__
+int ftruncate(int fd, off_t length);
+uid_t getuid(void);
+ssize_t pread(int d, void *buf, size_t nbytes, off_t offset);
+ssize_t pwrite(int d, const void *buf, size_t nbytes, off_t offset);
+#endif
+
+#else
+
+#include <stdlib.h>
+#include <io.h>
+#include <process.h>
+
+#define STDOUT_FILENO   1
+#define STDERR_FILENO   2
+
+#define R_OK    4
+#define W_OK    2
+#define X_OK    0
+#define F_OK    0
+
+#define SEEK_SET        0
+#define SEEK_CUR        1
+#define SEEK_END        2
+
+#define access _access
+
+#ifdef _MSC_VER
+#include <windows.h>
+static inline unsigned int sleep(unsigned int seconds)
+{
+       Sleep(seconds * 1000);
+       return seconds;
+}
+#endif
+
+int ftruncate(int fd, off_t length);
+uid_t getuid(void);
+ssize_t pread(int d, void *buf, size_t nbytes, off_t offset);
+ssize_t pwrite(int d, const void *buf, size_t nbytes, off_t offset);
+
+#endif
+
+#ifndef HAVE_GETENTROPY
+int getentropy(void *buf, size_t buflen);
+#else
+/*
+ * Solaris 11.3 adds getentropy(2), but defines the function in sys/random.h
+ */
+#if defined(__sun)
+#include <sys/random.h>
+#endif
+#endif
+
+#ifndef HAVE_GETPAGESIZE
+int getpagesize(void);
+#endif
+
+#define pledge(request, paths) 0
+#define unveil(path, permissions) 0
+
+#ifndef HAVE_PIPE2
+int pipe2(int fildes[2], int flags);
+#endif
+
+#endif