Lennart Poettering
a87a9625f8
Let's drop support systems lacking memfds, i.e. pre kernel 3.17 systems. This allows us to drastically simplify the "data fd" concept, so far that we can remove it entirely. This replaces acquire_data_fd() with a specialized call to memfd_new_and_seal(), not that memfds can be the only implementation of the concept.
27 lines
822 B
C
27 lines
822 B
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <inttypes.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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int memfd_create_wrapper(const char *name, unsigned mode);
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int memfd_new(const char *name);
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int memfd_new_and_map(const char *name, size_t sz, void **p);
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int memfd_new_and_seal(const char *name, const void *data, size_t sz);
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static inline int memfd_new_and_seal_string(const char *name, const char *s) {
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return memfd_new_and_seal(name, s, SIZE_MAX);
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}
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int memfd_add_seals(int fd, unsigned int seals);
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int memfd_get_seals(int fd, unsigned int *ret_seals);
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int memfd_map(int fd, uint64_t offset, size_t size, void **p);
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int memfd_set_sealed(int fd);
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int memfd_get_sealed(int fd);
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int memfd_get_size(int fd, uint64_t *sz);
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int memfd_set_size(int fd, uint64_t sz);
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