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54 lines
1.1 KiB
C
Vendored
54 lines
1.1 KiB
C
Vendored
/*
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* Copyright (C) 2018 Kovid Goyal <kovid at kovidgoyal.net>
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*
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* Distributed under terms of the GPL3 license.
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*/
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#pragma once
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#ifdef HAS_MEMFD_CREATE
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#include <unistd.h>
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#include <sys/syscall.h>
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static inline int memfd_create(const char *name, unsigned int flags) {
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return syscall(__NR_memfd_create, name, flags);
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}
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#ifndef F_LINUX_SPECIFIC_BASE
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#define F_LINUX_SPECIFIC_BASE 1024
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#endif
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#ifndef F_ADD_SEALS
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#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
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#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
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#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
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#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
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#define F_SEAL_GROW 0x0004 /* prevent file from growing */
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#define F_SEAL_WRITE 0x0008 /* prevent writes */
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#endif
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#ifndef MFD_CLOEXEC
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#define MFD_CLOEXEC 0x0001U
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#define MFD_ALLOW_SEALING 0x0002U
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#endif
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#else
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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static inline int createTmpfileCloexec(char* tmpname)
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{
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int fd;
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fd = mkostemp(tmpname, O_CLOEXEC);
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if (fd >= 0)
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unlink(tmpname);
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return fd;
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}
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#endif
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