error.c

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// SPDX-License-Identifier: LGPL-3.0-only
 
#define _POSIX_C_SOURCE 200112L
 
#include "os/core.h"
#include "os_common.h"
 
#include "base/util.h"
#include "std/str.h"
#include "core/macros.h"
 
#include <string.h>
#include <errno.h>
 
STA_DECL
CT_LOCAL os_error_t impl_last_error(void)
{
    return (os_error_t)errno;
}
 
CT_LOCAL size_t impl_error_length(os_error_t error)
{
    CT_UNUSED(error);
    return 256; // TODO: find a way to get the size of the buffer
}
 
CT_LOCAL size_t impl_error_string(os_error_t error, char *buffer, size_t size)
{
    int err = (int)error;
    if (strerror_r(err, buffer, size) != 0)
    {
        return str_sprintf(buffer, size, "errno: %d", err);
    }
 
    return ctu_strlen(buffer);
}