Mercurial > hg > nginx-quic
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; } */