1 files changed, 94 insertions, 0 deletions
diff --git a/src/basic/missing_fcntl.h b/src/basic/missing_fcntl.h
new file mode 100644
index 0000000..3c85bef
--- /dev/null
+++ b/src/basic/missing_fcntl.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <fcntl.h>
+
+#ifndef F_LINUX_SPECIFIC_BASE
+#define F_LINUX_SPECIFIC_BASE 1024
+#endif
+
+#ifndef F_SETPIPE_SZ
+#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
+#endif
+
+#ifndef F_GETPIPE_SZ
+#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
+#endif
+
+#ifndef F_ADD_SEALS
+#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
+#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
+
+#define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
+#define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
+#define F_SEAL_GROW     0x0004  /* prevent file from growing */
+#define F_SEAL_WRITE    0x0008  /* prevent writes */
+#endif
+
+#ifndef F_SEAL_FUTURE_WRITE
+#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
+#endif
+
+#ifndef F_SEAL_EXEC
+#define F_SEAL_EXEC     0x0020  /* prevent chmod modifying exec bits */
+#endif
+
+#ifndef F_OFD_GETLK
+#define F_OFD_GETLK     36
+#define F_OFD_SETLK     37
+#define F_OFD_SETLKW    38
+#endif
+
+#ifndef MAX_HANDLE_SZ
+#define MAX_HANDLE_SZ 128
+#endif
+
+/* The precise definition of __O_TMPFILE is arch specific; use the
+ * values defined by the kernel (note: some are hexa, some are octal,
+ * duplicated as-is from the kernel definitions):
+ * - alpha, parisc, sparc: each has a specific value;
+ * - others: they use the "generic" value.
+ */
+
+#ifndef __O_TMPFILE
+#if defined(__alpha__)
+#define __O_TMPFILE     0100000000
+#elif defined(__parisc__) || defined(__hppa__)
+#define __O_TMPFILE     0400000000
+#elif defined(__sparc__) || defined(__sparc64__)
+#define __O_TMPFILE     0x2000000
+#else
+#define __O_TMPFILE     020000000
+#endif
+#endif
+
+/* a horrid kludge trying to make sure that this will fail on old kernels */
+#ifndef O_TMPFILE
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
+#endif
+
+/* So O_LARGEFILE is generally implied by glibc, and defined to zero hence, because we only build in LFS
+ * mode. However, when invoking fcntl(F_GETFL) the flag is ORed into the result anyway — glibc does not mask
+ * it away. Which sucks. Let's define the actual value here, so that we can mask it ourselves.
+ *
+ * The precise definition is arch specific, so we use the values defined in the kernel (note that some
+ * are hexa and others are octal; duplicated as-is from the kernel definitions):
+ * - alpha, arm, arm64, m68k, mips, parisc, powerpc, sparc: each has a specific value;
+ * - others: they use the "generic" value (defined in include/uapi/asm-generic/fcntl.h) */
+#if O_LARGEFILE != 0
+#define RAW_O_LARGEFILE O_LARGEFILE
+#else
+#if defined(__alpha__) || defined(__arm__) || defined(__aarch64__) || defined(__m68k__)
+#define RAW_O_LARGEFILE 0400000
+#elif defined(__mips__)
+#define RAW_O_LARGEFILE 0x2000
+#elif defined(__parisc__) || defined(__hppa__)
+#define RAW_O_LARGEFILE 000004000
+#elif defined(__powerpc__)
+#define RAW_O_LARGEFILE 0200000
+#elif defined(__sparc__)
+#define RAW_O_LARGEFILE 0x40000
+#else
+#define RAW_O_LARGEFILE 00100000
+#endif
+#endif