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[83.35.24.93]) by smtp.gmail.com with ESMTPSA id l9sm2358792wrp.14.2021.07.08.07.11.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jul 2021 07:11:55 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v2 7/8] linux-user/syscall: Introduce errno_exists() Date: Thu, 8 Jul 2021 16:11:20 +0200 Message-Id: <20210708141121.1731691-8-f4bug@amsat.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210708141121.1731691-1-f4bug@amsat.org> References: <20210708141121.1731691-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::32d; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x32d.google.com X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Taylor Simpson , Richard Henderson , Laurent Vivier , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Philippe Mathieu-Daudé --- linux-user/syscall.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 4842a1987b7..56682b06cbd 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -509,6 +509,11 @@ static inline int next_free_host_timer(void) #define ERRNO_TABLE_SIZE 1200 +static inline bool errno_exists(int err) +{ + return err >= 0 && err < ERRNO_TABLE_SIZE; +} + /* target_to_host_errno_table[] is initialized from * host_to_target_errno_table[] in syscall_init(). */ static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { @@ -672,7 +677,7 @@ const char *target_strerror(int err) return "Successful exit from sigreturn"; } - if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) { + if (!errno_exists(err)) { return NULL; } return strerror(target_to_host_errno(err)); -- 2.31.1