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(main): Need to use FD_ISSET for the client

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descriptors too; aiiih.  Set the listening socket to non-blocking.
This commit is contained in:
Werner Koch 2004-01-16 22:38:58 +00:00
parent 4dc78204ae
commit e5b228fc67
2 changed files with 22 additions and 5 deletions
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5
tools/ChangeLog
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@ -1,3 +1,8 @@
2004-01-16 Werner Koch <wk@gnupg.org>
* watchgnupg.c (main): Need to use FD_ISSET for the client
descriptors too; aiiih. Set the listening socket to non-blocking.
2004-01-10 Werner Koch <wk@gnupg.org>
* Makefile.am: Use GPG_ERROR_CFLAGS

22
tools/watchgnupg.c
View File

@ -28,6 +28,7 @@
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <fcntl.h>
#include <time.h>
#define PGM "watchgnupg"
@ -178,6 +179,7 @@ main (int argc, char **argv)
struct sockaddr_un srvr_addr;
int addrlen;
int server;
int flags;
client_t client_list = NULL;
if (argc)
@ -227,6 +229,16 @@ main (int argc, char **argv)
if (server == -1)
die ("socket() failed: %s\n", strerror (errno));
/* We better set the listening socket to non-blocking so that we
don't get bitten by race conditions in accept. The should not
happen for Unix Domain sockets but well, shit happens. */
flags = fcntl (server, F_GETFL, 0);
if (flags == -1)
die ("fcntl (F_GETFL) failed: %s\n", strerror (errno));
if ( fcntl (server, F_SETFL, (flags | O_NONBLOCK)) == -1)
die ("fcntl (F_SETFL) failed: %s\n", strerror (errno));
memset (&srvr_addr, 0, sizeof srvr_addr);
srvr_addr.sun_family = AF_LOCAL;
strncpy (srvr_addr.sun_path, *argv, sizeof (srvr_addr.sun_path) - 1);
@ -257,8 +269,8 @@ main (int argc, char **argv)
client_t client;
/* Usually we don't have that many connections, thus it is okay
to set them al the time from scratch and don't maintain an
active fd_set. */
to set them allways from scratch and don't maintain an active
fd_set. */
FD_ZERO (&rfds);
FD_SET (server, &rfds);
max_fd = server;
@ -282,12 +294,12 @@ main (int argc, char **argv)
fd = accept (server, (struct sockaddr *) &clnt_addr, &addrlen);
if (fd == -1)
{
printf ("accepting connection failed: %s\n", strerror (errno));
printf ("[accepting connection failed: %s]\n", strerror (errno));
}
else if (fd >= FD_SETSIZE)
{
close (fd);
printf ("[connection request denied: too many connections\n");
printf ("[connection request denied: too many connections]\n");
}
else
{
@ -305,7 +317,7 @@ main (int argc, char **argv)
}
}
for (client = client_list; client; client = client->next)
if (client->fd != -1)
if (client->fd != -1 && FD_ISSET (client->fd, &rfds))
{
char line[256];
int n;