diff options
| -rw-r--r-- | networking/telnetd.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/networking/telnetd.c b/networking/telnetd.c index f04b32f..481c932 100644 --- a/networking/telnetd.c +++ b/networking/telnetd.c @@ -157,19 +157,20 @@ remove_iacs(struct tsession *ts, int *pnum_totty) } /* - * Converting single 0xff into double on output + * Converting single IAC into double on output */ static size_t iac_safe_write(int fd, const char *buf, size_t count) { - const char *oxff; + const char *IACptr; size_t wr, rc, total; total = 0; while (1) { if (count == 0) return total; - if (*buf == (char)0xff) { - rc = safe_write(fd, "\xff\xff", 2); + if (*buf == (char)IAC) { + static const char IACIAC[] ALIGN1 = { IAC, IAC }; + rc = safe_write(fd, IACIAC, 2); if (rc != 2) break; buf++; @@ -177,11 +178,11 @@ static size_t iac_safe_write(int fd, const char *buf, size_t count) count--; continue; } - /* count != 0, *buf != 0xff */ - oxff = memchr(buf, 0xff, count); + /* count != 0, *buf != IAC */ + IACptr = memchr(buf, IAC, count); wr = count; - if (oxff) - wr = oxff - buf; + if (IACptr) + wr = IACptr - buf; rc = safe_write(fd, buf, wr); if (rc != wr) break; @@ -255,9 +256,13 @@ make_new_session( //memcpy(TS_BUF2, iacs_to_send, sizeof(iacs_to_send)); //ts->rdidx2 = sizeof(iacs_to_send); //ts->size2 = sizeof(iacs_to_send); - /* So just stuff it into TCP buffer! */ + /* So just stuff it into TCP stream! (no error check...) */ +#if ENABLE_FEATURE_TELNETD_STANDALONE safe_write(sock, iacs_to_send, sizeof(iacs_to_send)); - /*ts->rdidx2 = 0; - xzalloc did it! */ +#else + safe_write(1, iacs_to_send, sizeof(iacs_to_send)); +#endif + /*ts->rdidx2 = 0; - xzalloc did it */ /*ts->size2 = 0;*/ } |