view src/os/win32/ngx_stat.c @ 7958:2576485b93d4 quic

HTTP/3: fixed overflow in prefixed integer parser. Previously, the expression (ch & 0x7f) was promoted to a signed integer. Depending on the platform, the size of this integer could be less than 8 bytes, leading to overflow when handling the higher bits of the result. Also, sign bit of this integer could be replicated when adding to the 64-bit st->value.
author Roman Arutyunyan <arut@nginx.com>
date Fri, 03 Jul 2020 16:41:31 +0300
parents d620f497c50f
children
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#include <ngx_config.h>
#include <ngx_core.h>


int ngx_file_type(char *file, ngx_file_info_t *sb)
{
    sb->dwFileAttributes = GetFileAttributes(file);

    if (sb->dwFileAttributes == INVALID_FILE_ATTRIBUTES) {
        return -1;
    }

    return 0;
}

/*
int ngx_stat(char *file, ngx_stat_t *sb)
{
    *sb = GetFileAttributes(file);

    if (*sb == INVALID_FILE_ATTRIBUTES) {
        return -1;
    }

    return 0;
}
*/