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telnetd: set SO_KEEPALIVE, users report it's useful. +20 bytes.

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This commit is contained in:
Denis Vlasenko 2008-11-09 00:44:40 +00:00
parent 3fa36e2350
commit 6d0443557c
1 changed files with 4 additions and 0 deletions
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4
networking/telnetd.c
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@ -182,6 +182,8 @@ make_new_session(
ndelay_on(fd);
#if ENABLE_FEATURE_TELNETD_STANDALONE
ts->sockfd_read = sock;
/* SO_KEEPALIVE by popular demand */
setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &const_int_1, sizeof(const_int_1));
ndelay_on(sock);
if (!sock) { /* We are called with fd 0 - we are in inetd mode */
sock++; /* so use fd 1 for output */
@ -191,6 +193,8 @@ make_new_session(
if (sock > maxfd)
maxfd = sock;
#else
/* SO_KEEPALIVE by popular demand */
setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, &const_int_1, sizeof(const_int_1));
/* ts->sockfd_read = 0; - done by xzalloc */
ts->sockfd_write = 1;
ndelay_on(0);