Fix GCC7 warnings about string truncation

[openocd.git] / src / flash / nor / xmc4xxx.c

diff --git a/src/flash/nor/xmc4xxx.c b/src/flash/nor/xmc4xxx.c
index 02df46a3fd2444a3c0ec4b9d94bea5eb8daea459..5677ef0f1634a7c2d853ea79942a63ab088d8a8d 100644 (file)
--- a/src/flash/nor/xmc4xxx.c
+++ b/src/flash/nor/xmc4xxx.c
@@ -931,13 +931,13 @@ static int xmc4xxx_get_info_command(struct flash_bank *bank, char *buf, int buf_
 
        /* If OTP Write protection is enabled (User 2), list each
         * sector that has it enabled */
-       char otp_str[8];
+       char otp_str[14];
        if (otp_enabled) {
                strcat(prot_str, "\nOTP Protection is enabled for sectors:\n");
                for (int i = 0; i < bank->num_sectors; i++) {
                        if (fb->write_prot_otp[i]) {
                                snprintf(otp_str, sizeof(otp_str), "- %d\n", i);
-                               strncat(prot_str, otp_str, ARRAY_SIZE(otp_str));
+                               strncat(prot_str, otp_str, sizeof(prot_str) - strlen(prot_str) - 1);
                        }
                }
        }