diff options
| -rw-r--r-- | smtp.c | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -117,11 +117,14 @@ static void SMTP_auth(int sock, char smtp_mode, char *username, char *password, snprintf(tmp, sizeof(tmp), "^%s^%s", username, password); len = strlen(tmp); - for (c = len - 1; c >= 0; c--) - { - if (tmp[c] == '^') - tmp[c] = '\0'; - } + + /* Take care not to overflow the buffer */ + c = 0; + tmp[c] = '\0'; + c += 1 + strlen(username); + if (c < len) + tmp[c] = '\0'; + to64frombits(b64buf, tmp, len, sizeof b64buf); SockPrintf(sock, "AUTH PLAIN %s\r\n", b64buf); SMTP_ok(sock, smtp_mode, TIMEOUT_DEFAULT); |