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[package] uhttpd: protect tcp receive operations with select, make tcp keep-alive optional (#8272)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24952 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
2011-01-09 23:35:45 +00:00
parent 13ec8222a8
commit 6e21adc1e0
6 changed files with 56 additions and 24 deletions
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35
package/uhttpd/src/uhttpd.c
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@@ -127,9 +127,7 @@ static int uh_socket_bind(
int status;
int bound = 0;
int tcp_ka_idl = 1;
int tcp_ka_int = 1;
int tcp_ka_cnt = 3;
int tcp_ka_idl, tcp_ka_int, tcp_ka_cnt;
struct listener *l = NULL;
struct addrinfo *addrs = NULL, *p = NULL;
@@ -157,13 +155,20 @@ static int uh_socket_bind(
}
/* TCP keep-alive */
if( setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)) ||
setsockopt(sock, SOL_TCP, TCP_KEEPIDLE, &tcp_ka_idl, sizeof(tcp_ka_idl)) ||
setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &tcp_ka_int, sizeof(tcp_ka_int)) ||
setsockopt(sock, SOL_TCP, TCP_KEEPCNT, &tcp_ka_cnt, sizeof(tcp_ka_cnt)) )
if( conf->tcp_keepalive > 0 )
{
fprintf(stderr, "Notice: Unable to enable TCP keep-alive: %s\n",
strerror(errno));
tcp_ka_idl = 1;
tcp_ka_cnt = 3;
tcp_ka_int = conf->tcp_keepalive;
if( setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)) ||
setsockopt(sock, SOL_TCP, TCP_KEEPIDLE, &tcp_ka_idl, sizeof(tcp_ka_idl)) ||
setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &tcp_ka_int, sizeof(tcp_ka_int)) ||
setsockopt(sock, SOL_TCP, TCP_KEEPCNT, &tcp_ka_cnt, sizeof(tcp_ka_cnt)) )
{
fprintf(stderr, "Notice: Unable to enable TCP keep-alive: %s\n",
strerror(errno));
}
}
/* required to get parallel v4 + v6 working */
@@ -619,7 +624,7 @@ static void uh_mainloop(struct config *conf, fd_set serv_fds, int max_fd)
int main (int argc, char **argv)
{
/* master file descriptor list */
fd_set used_fds, serv_fds, read_fds;
fd_set serv_fds;
/* working structs */
struct addrinfo hints;
@@ -650,10 +655,7 @@ int main (int argc, char **argv)
void *lib;
#endif
/* clear the master and temp sets */
FD_ZERO(&used_fds);
FD_ZERO(&serv_fds);
FD_ZERO(&read_fds);
/* handle SIGPIPE, SIGINT, SIGTERM, SIGCHLD */
sa.sa_flags = 0;
@@ -722,7 +724,7 @@ int main (int argc, char **argv)
#endif
while( (opt = getopt(argc, argv,
"fSDRC:K:E:I:p:s:h:c:l:L:d:r:m:x:i:t:T:")) > 0
"fSDRC:K:E:I:p:s:h:c:l:L:d:r:m:x:i:t:T:A:")) > 0
) {
switch(opt)
{
@@ -896,6 +898,11 @@ int main (int argc, char **argv)
conf.network_timeout = atoi(optarg);
break;
/* tcp keep-alive */
case 'A':
conf.tcp_keepalive = atoi(optarg);
break;
/* no fork */
case 'f':
nofork = 1;