3111261940
Definitions of fcntl flags are different between native libc and Zephyr. In order to correctly map those values to the host, include Zephyr's fcntl.h header, instead of the one bundled with libc. Signed-off-by: Marcin Niestroj <m.niestroj@emb.dev>
91 lines
1.6 KiB
C
91 lines
1.6 KiB
C
/**
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* Copyright (c) 2023-2024 Marcin Niestroj
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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*
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* fcntl.h related code common to Zephyr (top: nsos_sockets.c) and Linux
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* (bottom: nsos_adapt.c).
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*
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* It is needed by both sides to share the same macro definitions/values
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* (prefixed with NSOS_MID_), which is not possible to achieve with two separate
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* standard libc libraries, since they use different values for the same
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* symbols.
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*/
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/*
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* When building for Zephyr, use Zephyr specific fcntl definitions.
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*/
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#ifdef __ZEPHYR__
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#include <zephyr/posix/fcntl.h>
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#else
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#include <fcntl.h>
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#endif
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#include "nsos_errno.h"
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#include "nsos_fcntl.h"
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#include <stdbool.h>
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static int fl_to_nsos_mid_(int flags, bool strict)
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{
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int flags_mid = 0;
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#define TO_NSOS_MID(_flag) \
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if (flags & (_flag)) { \
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flags &= ~(_flag); \
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flags_mid |= NSOS_MID_ ## _flag; \
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}
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TO_NSOS_MID(O_RDONLY);
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TO_NSOS_MID(O_WRONLY);
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TO_NSOS_MID(O_RDWR);
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TO_NSOS_MID(O_APPEND);
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TO_NSOS_MID(O_EXCL);
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TO_NSOS_MID(O_NONBLOCK);
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#undef TO_NSOS_MID
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if (strict && flags != 0) {
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return -NSOS_MID_EINVAL;
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}
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return flags_mid;
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}
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int fl_to_nsos_mid(int flags)
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{
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return fl_to_nsos_mid_(flags, false);
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}
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int fl_to_nsos_mid_strict(int flags)
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{
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return fl_to_nsos_mid_(flags, true);
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}
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int fl_from_nsos_mid(int flags_mid)
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{
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int flags = 0;
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#define FROM_NSOS_MID(_flag) \
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if (flags_mid & NSOS_MID_ ## _flag) { \
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flags_mid &= ~NSOS_MID_ ## _flag; \
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flags |= _flag; \
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}
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FROM_NSOS_MID(O_RDONLY);
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FROM_NSOS_MID(O_WRONLY);
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FROM_NSOS_MID(O_RDWR);
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FROM_NSOS_MID(O_APPEND);
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FROM_NSOS_MID(O_EXCL);
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FROM_NSOS_MID(O_NONBLOCK);
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#undef FROM_NSOS_MID
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return flags;
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}
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