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authorSimo Sorce <ssorce@redhat.com>2011-05-03 12:15:07 -0400
committerStephen Gallagher <sgallagh@redhat.com>2011-05-03 13:01:14 -0400
commit67dabadee5686649814bf4f76d15904bb7267d38 (patch)
treec6638c2f1154e93fcb823fb8baa21b5ce02a44a6 /src
parent44e1f778342e0317a5b4287cea7bc23b78ce8568 (diff)
downloadsssd-67dabadee5686649814bf4f76d15904bb7267d38.tar.gz
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clients: use poll instead of select
select is limited to fd numbers up to 1024, we need to use poll() here to avoid causing memory corruption in the calling process. Fixes: https://fedorahosted.org/sssd/ticket/861
Diffstat (limited to 'src')
-rw-r--r--src/sss_client/common.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/src/sss_client/common.c b/src/sss_client/common.c
index 0e5795f72..c8a951597 100644
--- a/src/sss_client/common.c
+++ b/src/sss_client/common.c
@@ -499,6 +499,7 @@ static int sss_cli_open_socket(int *errnop, const char *socket_name)
bool connected = false;
unsigned int wait_time;
unsigned int sleep_time;
+ time_t start_time = time(NULL);
int ret;
int sd;
@@ -527,8 +528,7 @@ static int sss_cli_open_socket(int *errnop, const char *socket_name)
while (inprogress) {
int connect_errno = 0;
socklen_t errnosize;
- struct timeval tv;
- fd_set w_fds;
+ struct pollfd pfd;
wait_time += sleep_time;
@@ -541,12 +541,10 @@ static int sss_cli_open_socket(int *errnop, const char *socket_name)
switch(errno) {
case EINPROGRESS:
- FD_ZERO(&w_fds);
- FD_SET(sd, &w_fds);
- tv.tv_sec = SSS_CLI_SOCKET_TIMEOUT - wait_time;
- tv.tv_usec = 0;
+ pfd.fd = sd;
+ pfd.events = POLLOUT;
- ret = select(sd + 1, NULL, &w_fds, NULL, &tv);
+ ret = poll(&pfd, 1, SSS_CLI_SOCKET_TIMEOUT - wait_time);
if (ret > 0) {
errnosize = sizeof(connect_errno);
@@ -557,8 +555,7 @@ static int sss_cli_open_socket(int *errnop, const char *socket_name)
break;
}
}
- wait_time += tv.tv_sec;
- if (tv.tv_usec != 0) wait_time++;
+ wait_time = time(NULL) - start_time;
break;
case EAGAIN:
if (wait_time < SSS_CLI_SOCKET_TIMEOUT) {