[BZ #677]

* nscd/nscd.c (termination_handler): Avoid segfault if some database
	is not enabled.

	* nscd/nscd_getai.c (__nscd_getai): If ai_resp->found == -1, set
	__nss_not_use_nscd_hosts and return -1.
	* nscd/nscd_initgroups.c (__nscd_getgrouplist): If
	initgr_resp->found == -1, set __nss_not_use_nscd_group and return -1.
	Avoid leaking sockets.

2005-01-28  Andreas Schwab  <schwab@suse.de>
	    H.J. Lu  <hongjiu.lu@intel.com>

	[BZ #677]
	* elf/dl-runtime.c (fixup): Change return type to
	DL_FIXUP_VALUE_TYPE. Use DL_FIXUP_VALUE_TYPE,
	DL_FIXUP_MAKE_VALUE and DL_FIXUP_VALUE_CODE_ADDR for relocation
	values. Use DL_FIXUP_VALUE_ADDR and DL_FIXUP_ADDR_VALUE to
	store and retrieve relocation values.
	(profile_fixup): Likewise.
	* include/link.h (link_map): Use DL_FIXUP_VALUE_TYPE for
	l_reloc_result.
	* sysdeps/generic/dl-fptr.h (link_map): Forward declaration.
	* sysdeps/generic/dl-lookupcfg.h (DL_FIXUP_VALUE_TYPE): New.
	(DL_FIXUP_MAKE_VALUE): Likewise.
	(DL_FIXUP_VALUE_CODE_ADDR): Likewise.
	(DL_FIXUP_VALUE_ADDR): Likewise.
	(DL_FIXUP_ADDR_VALUE): Likewise.
	* sysdeps/ia64/dl-lookupcfg.h: Include <dl-fptr.h> for "struct fdesc".
	(DL_FIXUP_VALUE_TYPE): New.
	(DL_FIXUP_MAKE_VALUE): Likewise.
	(DL_FIXUP_VALUE_CODE_ADDR): Likewise.
	(DL_FIXUP_VALUE_ADDR): Likewise.
	(DL_FIXUP_ADDR_VALUE): Likewise.
	* sysdeps/ia64/dl-machine.h (elf_machine_profile_fixup_plt): Removed.
	(elf_machine_profile_plt): Removed.
	(elf_machine_fixup_plt): Change return type and type of value
	parameter to struct fdesc.
	(elf_machine_plt_value): Likewise.
	(elf_machine_rela): Use DL_FIXUP_MAKE_VALUE to construct
	argument for elf_machine_fixup_plt.

2005-02-07  Jakub Jelinek  <jakub@redhat.com>

ChangeLog

@@ -1,3 +1,46 @@
+2005-02-07  Jakub Jelinek  <jakub@redhat.com>
+
+	* nscd/nscd.c (termination_handler): Avoid segfault if some database
+	is not enabled.
+
+	* nscd/nscd_getai.c (__nscd_getai): If ai_resp->found == -1, set
+	__nss_not_use_nscd_hosts and return -1.
+	* nscd/nscd_initgroups.c (__nscd_getgrouplist): If
+	initgr_resp->found == -1, set __nss_not_use_nscd_group and return -1.
+	Avoid leaking sockets.
+
+2005-01-28  Andreas Schwab  <schwab@suse.de>
+	    H.J. Lu  <hongjiu.lu@intel.com>
+
+	[BZ #677]
+	* elf/dl-runtime.c (fixup): Change return type to
+	DL_FIXUP_VALUE_TYPE. Use DL_FIXUP_VALUE_TYPE,
+	DL_FIXUP_MAKE_VALUE and DL_FIXUP_VALUE_CODE_ADDR for relocation
+	values. Use DL_FIXUP_VALUE_ADDR and DL_FIXUP_ADDR_VALUE to
+	store and retrieve relocation values.
+	(profile_fixup): Likewise.
+	* include/link.h (link_map): Use DL_FIXUP_VALUE_TYPE for
+	l_reloc_result.
+	* sysdeps/generic/dl-fptr.h (link_map): Forward declaration.
+	* sysdeps/generic/dl-lookupcfg.h (DL_FIXUP_VALUE_TYPE): New.
+	(DL_FIXUP_MAKE_VALUE): Likewise.
+	(DL_FIXUP_VALUE_CODE_ADDR): Likewise.
+	(DL_FIXUP_VALUE_ADDR): Likewise.
+	(DL_FIXUP_ADDR_VALUE): Likewise.
+	* sysdeps/ia64/dl-lookupcfg.h: Include <dl-fptr.h> for "struct fdesc".
+	(DL_FIXUP_VALUE_TYPE): New.
+	(DL_FIXUP_MAKE_VALUE): Likewise.
+	(DL_FIXUP_VALUE_CODE_ADDR): Likewise.
+	(DL_FIXUP_VALUE_ADDR): Likewise.
+	(DL_FIXUP_ADDR_VALUE): Likewise.
+	* sysdeps/ia64/dl-machine.h (elf_machine_profile_fixup_plt): Removed.
+	(elf_machine_profile_plt): Removed.
+	(elf_machine_fixup_plt): Change return type and type of value
+	parameter to struct fdesc.
+	(elf_machine_plt_value): Likewise.
+	(elf_machine_rela): Use DL_FIXUP_MAKE_VALUE to construct
+	argument for elf_machine_fixup_plt.
+
 2005-02-07  Jakub Jelinek  <jakub@redhat.com>
 
 	* nscd/nscd.init (reload): Print Reloading nscd: before and a newline

include/link.h

@@ -214,7 +214,7 @@ struct link_map
     /* Collected results of relocation while profiling.  */
     struct reloc_result
     {
-      ElfW(Addr) addr;
+      DL_FIXUP_VALUE_TYPE addr;
       struct link_map *bound;
       unsigned int boundndx;
       uint32_t enterexit;

nscd/nscd.c

@@ -442,6 +442,9 @@ termination_handler (int signum)
   /* Synchronize memory.  */
   for (int cnt = 0; cnt < lastdb; ++cnt)
     {
+      if (!dbs[cnt].enabled)
+	continue;
+
       /* Make sure nobody keeps using the database.  */
       dbs[cnt].head->timestamp = 0;
 

nscd/nscd_getai.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
@@ -78,7 +78,7 @@ __nscd_getai (const char *key, struct nscd_ai_result **result, int *h_errnop)
 				 sizeof (ai_resp_mem));
       if (sock == -1)
 	{
-	  /* nscd not running or wrong version or hosts caching disabled.  */
+	  /* nscd not running or wrong version.  */
 	  __nss_not_use_nscd_hosts = 1;
 	  goto out;
 	}
@@ -151,6 +151,13 @@ __nscd_getai (const char *key, struct nscd_ai_result **result, int *h_errnop)
     }
   else
     {
+      if (__builtin_expect (ai_resp->found == -1, 0))
+	{
+	  /* The daemon does not cache this database.  */
+	  __nss_not_use_nscd_hosts = 1;
+	  goto out_close;
+	}
+
       /* Store the error number.  */
       *h_errnop = ai_resp->error;
 

nscd/nscd_initgroups.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
 
@@ -75,7 +75,7 @@ __nscd_getgrouplist (const char *user, gid_t group, long int *size,
 				 sizeof (initgr_resp_mem));
       if (sock == -1)
 	{
-	  /* nscd not running or wrong version or hosts caching disabled.  */
+	  /* nscd not running or wrong version.  */
 	  __nss_not_use_nscd_group = 1;
 	  goto out;
 	}
@@ -101,7 +101,7 @@ __nscd_getgrouplist (const char *user, gid_t group, long int *size,
 				 (initgr_resp->ngrps + 1) * sizeof (gid_t));
 	  if (newp == NULL)
 	    /* We cannot increase the buffer size.  */
-	    goto out;
+	    goto out_close;
 
 	  *groupsp = newp;
 	  *size = initgr_resp->ngrps + 1;
@@ -125,6 +125,13 @@ __nscd_getgrouplist (const char *user, gid_t group, long int *size,
     }
   else
     {
+      if (__builtin_expect (initgr_resp->found == -1, 0))
+	{
+	  /* The daemon does not cache this database.  */
+	  __nss_not_use_nscd_group = 1;
+	  goto out_close;
+	}
+
       /* No group found yet.   */
       retval = 0;
 
@@ -143,6 +150,7 @@ __nscd_getgrouplist (const char *user, gid_t group, long int *size,
 	(*groupsp)[retval++] = group;
     }
 
+ out_close:
   if (sock != -1)
     close_not_cancel_no_status (sock);
  out:

sysdeps/generic/dl-fptr.h

@@ -36,6 +36,8 @@ struct fdesc_table
     struct fdesc fdesc[0];
   };
 
+struct link_map;
+
 extern ElfW(Addr) _dl_boot_fptr_table [];
 
 extern ElfW(Addr) _dl_make_fptr (struct link_map *, const ElfW(Sym) *,

sysdeps/generic/dl-lookupcfg.h

@@ -17,4 +17,13 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-/* Nothing special.  */
+/* The type of the return value of fixup/profile_fixup.  */
+#define DL_FIXUP_VALUE_TYPE ElfW(Addr)
+/* Construct a value of type DL_FIXUP_VALUE_TYPE from a code address
+   and a link map.  */
+#define DL_FIXUP_MAKE_VALUE(map, addr) (addr)
+/* Extract the code address from a value of type DL_FIXUP_MAKE_VALUE.
+ */
+#define DL_FIXUP_VALUE_CODE_ADDR(value) (value)
+#define DL_FIXUP_VALUE_ADDR(value) (value)
+#define DL_FIXUP_ADDR_VALUE(addr) (addr)

sysdeps/ia64/dl-lookupcfg.h

@@ -20,6 +20,8 @@
 #define ELF_FUNCTION_PTR_IS_SPECIAL
 #define DL_UNMAP_IS_SPECIAL
 
+#include <dl-fptr.h>
+
 /* We do not support copy relocations for IA-64.  */
 #define DL_NO_COPY_RELOCS
 
@@ -56,3 +58,15 @@ extern void _dl_unmap (struct link_map *map);
 
 #define DL_DT_INIT_ADDRESS(map, addr) DL_AUTO_FUNCTION_ADDRESS (map, addr)
 #define DL_DT_FINI_ADDRESS(map, addr) DL_AUTO_FUNCTION_ADDRESS (map, addr)
+/* The type of the return value of fixup/profile_fixup.  */
+#define DL_FIXUP_VALUE_TYPE struct fdesc
+/* Construct a value of type DL_FIXUP_VALUE_TYPE from a code address
+   and a link map.  */
+#define DL_FIXUP_MAKE_VALUE(map, addr) \
+  ((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr })
+/* Extract the code address from a value of type DL_FIXUP_MAKE_VALUE.
+ */
+#define DL_FIXUP_VALUE_CODE_ADDR(value) (value).ip
+
+#define DL_FIXUP_VALUE_ADDR(value) ((uintptr_t) &(value))
+#define DL_FIXUP_ADDR_VALUE(addr) (*(struct fdesc *) (addr))

sysdeps/ia64/dl-machine.h

@@ -331,34 +331,29 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 #define ELF_MACHINE_START_ADDRESS(map, start)	\
   DL_STATIC_FUNCTION_ADDRESS (map, start)
 
-#define elf_machine_profile_fixup_plt(l, reloc, rel_addr, value) \
-  elf_machine_fixup_plt (l, reloc, rel_addr, value)
-
-#define elf_machine_profile_plt(reloc_addr) ((Elf64_Addr) (reloc_addr))
-
 /* Fixup a PLT entry to bounce directly to the function at VALUE.  */
-static inline Elf64_Addr __attribute__ ((always_inline))
+static inline struct fdesc __attribute__ ((always_inline))
 elf_machine_fixup_plt (struct link_map *l, lookup_t t,
 		       const Elf64_Rela *reloc,
-		       Elf64_Addr *reloc_addr, Elf64_Addr value)
+		       Elf64_Addr *reloc_addr, struct fdesc value)
 {
   /* l is the link_map for the caller, t is the link_map for the object
    * being called */
   /* got has already been relocated in elf_get_dynamic_info() */
-  reloc_addr[1] = t->l_info[DT_PLTGOT]->d_un.d_ptr;
+  reloc_addr[1] = value.gp;
   /* we need a "release" here to ensure that the gp is visible before
      the code entry point is updated: */
-  ((volatile Elf64_Addr *) reloc_addr)[0] = value;
+  ((volatile Elf64_Addr *) reloc_addr)[0] = value.ip;
-  return (Elf64_Addr) reloc_addr;
+  return value;
 }
 
 /* Return the final value of a plt relocation.  */
-static inline Elf64_Addr
+static inline struct fdesc
 elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
-		       Elf64_Addr value)
+		       struct fdesc value)
 {
   /* No need to handle rel vs rela since IA64 is rela only */
-  return value + reloc->r_addend;
+  return (struct fdesc) { value.ip + reloc->r_addend, value.gp };
 }
 
 #endif /* !dl_machine_h */
@@ -429,7 +424,8 @@ elf_machine_rela (struct link_map *map,
 	    ;/* No adjustment.  */
 	  else if (r_type == R_IA64_IPLTLSB)
 	    {
-	      elf_machine_fixup_plt (NULL, sym_map, reloc, reloc_addr, value);
+	      elf_machine_fixup_plt (NULL, NULL, reloc, reloc_addr,
+				     DL_FIXUP_MAKE_VALUE (sym_map, value));
 	      return;
 	    }
 	  else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_FPTR64LSB))