Updated to fedora-glibc-20080728T2320cvs/fedora-glibc-2_8_90-10

3 files changed, 106 insertions, 26 deletions

diff --git a/nscd/Makefile b/nscd/Makefile
index 51badea201..364ddfe8dd 100644
--- a/nscd/Makefile
+++ b/nscd/Makefile
@@ -90,7 +90,7 @@ CFLAGS-nscd_initgroups.c = -fexceptions
 
 nscd-cflags = -DIS_IN_nscd=1 -D_FORTIFY_SOURCE=2
 ifeq (yesyes,$(have-fpie)$(build-shared))
-nscd-cflags += -fpie
+nscd-cflags += $(pie-ccflag)
 endif
 ifeq (yes,$(have-ssp))
 nscd-cflags += -fstack-protector
diff --git a/nscd/connections.c b/nscd/connections.c
index e4d32b27de..a1b92f466b 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -234,6 +234,14 @@ static int inotify_fd = -1;
 static int resolv_conf_descr = -1;
 #endif
 
+#ifndef __ASSUME_SOCK_CLOEXEC
+/* Negative if SOCK_CLOEXEC is not supported, positive if it is, zero
+   before be know the result.  */
+static int have_sock_cloexec;
+/* The paccept syscall was introduced at the same time as SOCK_CLOEXEC.  */
+# define have_paccept have_sock_cloexec
+#endif
+
 /* Number of times clients had to wait.  */
 unsigned long int client_queued;
 
@@ -517,9 +525,15 @@ nscd_init (void)
 
 #ifdef HAVE_INOTIFY
   /* Use inotify to recognize changed files.  */
-  inotify_fd = inotify_init ();
-  if (inotify_fd != -1)
-    fcntl (inotify_fd, F_SETFL, O_NONBLOCK);
+  inotify_fd = inotify_init1 (IN_NONBLOCK);
+# ifndef __ASSUME_IN_NONBLOCK
+  if (inotify_fd == -1 && errno == ENOSYS)
+    {
+      inotify_fd = inotify_init ();
+      if (inotify_fd != -1)
+	fcntl (inotify_fd, F_SETFL, O_RDONLY | O_NONBLOCK);
+    }
+# endif
 #endif
 
   for (size_t cnt = 0; cnt < lastdb; ++cnt)
@@ -860,7 +874,21 @@ cannot set socket to close on exec: %s; disabling paranoia mode"),
       }
 
   /* Create the socket.  */
-  sock = socket (AF_UNIX, SOCK_STREAM, 0);
+#ifndef __ASSUME_SOCK_CLOEXEC
+  sock = -1;
+  if (have_sock_cloexec >= 0)
+#endif
+    {
+      sock = socket (AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
+#ifdef __ASSUME_SOCK_CLOEXEC
+      if (have_sock_cloexec == 0)
+	have_sock_cloexec = sock != -1 || errno != EINVAL ? 1 : -1;
+#endif
+    }
+#ifndef __ASSUME_SOCK_CLOEXEC
+  if (have_sock_cloexec < 0)
+    sock = socket (AF_UNIX, SOCK_STREAM, 0);
+#endif
   if (sock < 0)
     {
       dbg_log (_("cannot open socket: %s"), strerror (errno));
@@ -876,22 +904,27 @@ cannot set socket to close on exec: %s; disabling paranoia mode"),
       exit (errno == EACCES ? 4 : 1);
     }
 
-  /* We don't want to get stuck on accept.  */
-  int fl = fcntl (sock, F_GETFL);
-  if (fl == -1 || fcntl (sock, F_SETFL, fl | O_NONBLOCK) == -1)
+#ifndef __ASSUME_SOCK_CLOEXEC
+  if (have_sock_cloexec < 0)
     {
-      dbg_log (_("cannot change socket to nonblocking mode: %s"),
-	       strerror (errno));
-      exit (1);
-    }
+      /* We don't want to get stuck on accept.  */
+      int fl = fcntl (sock, F_GETFL);
+      if (fl == -1 || fcntl (sock, F_SETFL, fl | O_NONBLOCK) == -1)
+	{
+	  dbg_log (_("cannot change socket to nonblocking mode: %s"),
+		   strerror (errno));
+	  exit (1);
+	}
 
-  /* The descriptor needs to be closed on exec.  */
-  if (paranoia && fcntl (sock, F_SETFD, FD_CLOEXEC) == -1)
-    {
-      dbg_log (_("cannot set socket to close on exec: %s"),
-	       strerror (errno));
-      exit (1);
+      /* The descriptor needs to be closed on exec.  */
+      if (paranoia && fcntl (sock, F_SETFD, FD_CLOEXEC) == -1)
+	{
+	  dbg_log (_("cannot set socket to close on exec: %s"),
+		   strerror (errno));
+	  exit (1);
+	}
     }
+#endif
 
   /* Set permissions for the socket.  */
   chmod (_PATH_NSCDSOCKET, DEFFILEMODE);
@@ -1576,10 +1609,15 @@ nscd_run_worker (void *p)
       /* We are done with the list.  */
       pthread_mutex_unlock (&readylist_lock);
 
-      /* We do not want to block on a short read or so.  */
-      int fl = fcntl (fd, F_GETFL);
-      if (fl == -1 || fcntl (fd, F_SETFL, fl | O_NONBLOCK) == -1)
-	goto close_and_out;
+#ifndef __ASSUME_SOCK_CLOEXEC
+      if (have_sock_cloexec < 0)
+	{
+	  /* We do not want to block on a short read or so.  */
+	  int fl = fcntl (fd, F_GETFL);
+	  if (fl == -1 || fcntl (fd, F_SETFL, fl | O_NONBLOCK) == -1)
+	    goto close_and_out;
+	}
+#endif
 
       /* Now read the request.  */
       request_header req;
@@ -1779,7 +1817,24 @@ main_loop_poll (void)
 	  if (conns[0].revents != 0)
 	    {
 	      /* We have a new incoming connection.  Accept the connection.  */
-	      int fd = TEMP_FAILURE_RETRY (accept (sock, NULL, NULL));
+	      int fd;
+
+#ifndef __ASSUME_PACCEPT
+	      fd = -1;
+	      if (have_paccept >= 0)
+#endif
+		{
+		  fd = TEMP_FAILURE_RETRY (paccept (sock, NULL, NULL, NULL,
+						    SOCK_NONBLOCK));
+#ifndef __ASSUME_PACCEPT
+		  if (have_paccept == 0)
+		    have_paccept = fd != -1 || errno != ENOSYS ? 1 : -1;
+#endif
+		}
+#ifndef __ASSUME_PACCEPT
+	      if (have_paccept < 0)
+		fd = TEMP_FAILURE_RETRY (accept (sock, NULL, NULL));
+#endif
 
 	      /* Use the descriptor if we have not reached the limit.  */
 	      if (fd >= 0)
diff --git a/nscd/nscd_helper.c b/nscd/nscd_helper.c
index 9828a46df0..7db5d09845 100644
--- a/nscd/nscd_helper.c
+++ b/nscd/nscd_helper.c
@@ -33,6 +33,7 @@
 #include <sys/un.h>
 #include <not-cancel.h>
 #include <nis/rpcsvc/nis.h>
+#include <kernel-features.h>
 
 #include "nscd-client.h"
 
@@ -161,7 +162,26 @@ __readvall (int fd, const struct iovec *iov, int iovcnt)
 static int
 open_socket (request_type type, const char *key, size_t keylen)
 {
-  int sock = __socket (PF_UNIX, SOCK_STREAM, 0);
+  int sock;
+
+#ifdef SOCK_CLOEXEC
+# ifndef __ASSUME_SOCK_CLOEXEC
+  if (__have_sock_cloexec >= 0)
+# endif
+    {
+      sock = __socket (PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
+# ifndef __ASSUME_SOCK_CLOEXEC
+      if (__have_sock_cloexec == 0)
+	__have_sock_cloexec = sock != -1 || errno != EINVAL ? 1 : -1;
+# endif
+    }
+#endif
+#ifndef __ASSUME_SOCK_CLOEXEC
+# ifdef SOCK_CLOEXEC
+  if (__have_sock_cloexec < 0)
+# endif
+    sock = __socket (PF_UNIX, SOCK_STREAM, 0);
+#endif
   if (sock < 0)
     return -1;
 
@@ -172,8 +192,13 @@ open_socket (request_type type, const char *key, size_t keylen)
   } reqdata;
   size_t real_sizeof_reqdata = sizeof (request_header) + keylen;
 
-  /* Make socket non-blocking.  */
-  __fcntl (sock, F_SETFL, O_RDWR | O_NONBLOCK);
+#ifndef __ASSUME_SOCK_CLOEXEC
+# ifdef SOCK_NONBLOCK
+  if (__have_sock_cloexec < 0)
+# endif
+    /* Make socket non-blocking.  */
+    __fcntl (sock, F_SETFL, O_RDWR | O_NONBLOCK);
+#endif
 
   struct sockaddr_un sun;
   sun.sun_family = AF_UNIX;