Update.

2003-04-28  Ulrich Drepper  <drepper@redhat.com>

	* nscd/nscd_getgr_r.c: Compact code a bit.  Add some __builtin_expect.
	* nscd/nscd_getpw_r.c: Likewise.
	* nscd/nscd_gethst_r.c: Likewise.

3 files changed, 54 insertions, 74 deletions

diff --git a/nscd/nscd_getgr_r.c b/nscd/nscd_getgr_r.c
index eae2544..9d9d7d5 100644
--- a/nscd/nscd_getgr_r.c
+++ b/nscd/nscd_getgr_r.c
@@ -70,6 +70,7 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
   gr_response_header gr_resp;
   ssize_t nbytes;
   struct iovec vec[2];
+  int result = -1;
 
   if (sock == -1)
     {
@@ -88,25 +89,18 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
 
   nbytes = TEMP_FAILURE_RETRY (__writev (sock, vec, 2));
   if (nbytes != (ssize_t) (sizeof (request_header) + keylen))
-    {
-      __close (sock);
-      return -1;
-    }
+    goto out;
 
   nbytes = TEMP_FAILURE_RETRY (__read (sock, &gr_resp,
 				       sizeof (gr_response_header)));
   if (nbytes != (ssize_t) sizeof (gr_response_header))
-    {
-      __close (sock);
-      return -1;
-    }
+    goto out;
 
   if (gr_resp.found == -1)
     {
       /* The daemon does not cache this database.  */
-      __close (sock);
       __nss_not_use_nscd_group = 1;
-      return -1;
+      goto out;
     }
 
   if (gr_resp.found == 1)
@@ -123,12 +117,12 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
 	       & (__alignof__ (char *) - 1));
       total_len = align + (1 + gr_resp.gr_mem_cnt) * sizeof (char *)
 		  + gr_resp.gr_name_len + gr_resp.gr_passwd_len;
-      if (buflen < total_len)
+      if (__builtin_expect (buflen < total_len, 0))
 	{
 	no_room:
 	  __set_errno (ERANGE);
-	  __close (sock);
-	  return ERANGE;
+	  result = ERANGE;
+	  goto out;
 	}
       buflen -= total_len;
 
@@ -156,11 +150,9 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
       total_len += gr_resp.gr_name_len + gr_resp.gr_passwd_len;
 
       /* Get this data.  */
-      if ((size_t) TEMP_FAILURE_RETRY (__readv (sock, vec, 2)) != total_len)
-	{
-	  __close (sock);
-	  return -1;
-	}
+      size_t n = TEMP_FAILURE_RETRY (__readv (sock, vec, 2));
+      if (__builtin_expect (n != total_len, 0))
+	goto out;
 
       /* Clear the terminating entry.  */
       resultbuf->gr_mem[gr_resp.gr_mem_cnt] = NULL;
@@ -174,26 +166,28 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
 	  p += len[cnt];
 	}
 
-      if (total_len > buflen)
+      if (__builtin_expect (total_len > buflen, 0))
 	goto no_room;
 
-      if ((size_t) TEMP_FAILURE_RETRY (__read (sock, resultbuf->gr_mem[0],
-					       total_len)) != total_len)
+      result = 0;
+      n = TEMP_FAILURE_RETRY (__read (sock, resultbuf->gr_mem[0],
+					     total_len));
+      if (__builtin_expect (n != total_len, 0))
 	{
-	  __close (sock);
 	  /* The `errno' to some value != ERANGE.  */
 	  __set_errno (ENOENT);
-	  return ENOENT;
+	  result = ENOENT;
 	}
-
-      __close (sock);
-      return 0;
     }
   else
     {
-      __close (sock);
       /* The `errno' to some value != ERANGE.  */
       __set_errno (ENOENT);
-      return ENOENT;
+      result = ENOENT;
     }
+
+ out:
+  __close (sock);
+
+  return result;
 }
diff --git a/nscd/nscd_gethst_r.c b/nscd/nscd_gethst_r.c
index 9488c53..69e7990 100644
--- a/nscd/nscd_gethst_r.c
+++ b/nscd/nscd_gethst_r.c
@@ -124,6 +124,7 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
   request_header req;
   ssize_t nbytes;
   struct iovec vec[4];
+  int result = -1;
 
   if (sock == -1)
     {
@@ -142,25 +143,18 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
 
   nbytes = TEMP_FAILURE_RETRY (__writev (sock, vec, 2));
   if ((size_t) nbytes != sizeof (request_header) + req.key_len)
-    {
-      __close (sock);
-      return -1;
-    }
+    goto out;
 
   nbytes = TEMP_FAILURE_RETRY (__read (sock, &hst_resp,
 				       sizeof (hst_response_header)));
-  if (nbytes != sizeof (hst_response_header))
-    {
-      __close (sock);
-      return -1;
-    }
+  if (__builtin_expect (nbytes != sizeof (hst_response_header), 0))
+    goto out;
 
   if (hst_resp.found == -1)
     {
       /* The daemon does not cache this database.  */
-      __close (sock);
       __nss_not_use_nscd_hosts = 1;
-      return -1;
+      goto out;
     }
 
   if (hst_resp.found == 1)
@@ -190,8 +184,8 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
 	{
 	no_room:
 	  __set_errno (ERANGE);
-	  __close (sock);
-	  return ERANGE;
+	  result = ERANGE;
+	  goto out;
 	}
       cp += align1;
 
@@ -264,10 +258,7 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
       resultbuf->h_addr_list[cnt] = NULL;
 
       if ((size_t) TEMP_FAILURE_RETRY (__readv (sock, vec, n)) != total_len)
-	{
-	  __close (sock);
-	  return -1;
-	}
+	goto out;
 
       /*  Now we also can read the aliases.  */
       total_len = 0;
@@ -285,23 +276,21 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
 
       /* And finally read the aliases.  */
       if ((size_t) TEMP_FAILURE_RETRY (__read (sock, resultbuf->h_aliases[0],
-					       total_len)) != total_len)
-	{
-	  __close (sock);
-	  return -1;
-	}
-
-      __close (sock);
-      return 0;
+					       total_len)) == total_len)
+	result = 0;
     }
   else
     {
       /* Store the error number.  */
       *h_errnop = hst_resp.error;
 
-      __close (sock);
       /* The `errno' to some value != ERANGE.  */
       __set_errno (ENOENT);
-      return ENOENT;
+      result = ENOENT;
     }
+
+ out:
+  __close (sock);
+
+  return result;
 }
diff --git a/nscd/nscd_getpw_r.c b/nscd/nscd_getpw_r.c
index abd059e..b0135d4 100644
--- a/nscd/nscd_getpw_r.c
+++ b/nscd/nscd_getpw_r.c
@@ -71,6 +71,7 @@ nscd_getpw_r (const char *key, size_t keylen, request_type type,
   pw_response_header pw_resp;
   ssize_t nbytes;
   struct iovec vec[2];
+  int result = -1;
 
   if (sock == -1)
     {
@@ -89,25 +90,18 @@ nscd_getpw_r (const char *key, size_t keylen, request_type type,
 
   nbytes = TEMP_FAILURE_RETRY (__writev (sock, vec, 2));
   if (nbytes != (ssize_t) (sizeof (request_header) + keylen))
-    {
-      __close (sock);
-      return -1;
-    }
+    goto out;
 
   nbytes = TEMP_FAILURE_RETRY (__read (sock, &pw_resp,
 				       sizeof (pw_response_header)));
   if (nbytes != (ssize_t) sizeof (pw_response_header))
-    {
-      __close (sock);
-      return -1;
-    }
+    goto out;
 
-  if (pw_resp.found == -1)
+  if (__builtin_expect (pw_resp.found == -1, 0))
     {
       /* The daemon does not cache this database.  */
-      __close (sock);
       __nss_not_use_nscd_passwd = 1;
-      return -1;
+      goto out;
     }
 
   if (pw_resp.found == 1)
@@ -117,11 +111,11 @@ nscd_getpw_r (const char *key, size_t keylen, request_type type,
 		      + pw_resp.pw_gecos_len + pw_resp.pw_dir_len
 		      + pw_resp.pw_shell_len);
 
-      if (buflen < total)
+      if (__builtin_expect (buflen < total, 0))
 	{
 	  __set_errno (ERANGE);
-	  __close (sock);
-	  return ERANGE;
+	  result = ERANGE;
+	  goto out;
 	}
 
       /* Set the information we already have.  */
@@ -145,15 +139,18 @@ nscd_getpw_r (const char *key, size_t keylen, request_type type,
 
       nbytes = TEMP_FAILURE_RETRY (__read (sock, buffer, total));
 
-      __close (sock);
-
-      return nbytes == (ssize_t) total ? 0 : -1;
+      if (nbytes == (ssize_t) total)
+	result = 0;
     }
   else
     {
-      __close (sock);
       /* The `errno' to some value != ERANGE.  */
       __set_errno (ENOENT);
-      return ENOENT;
+      result = ENOENT;
     }
+
+ out:
+  __close (sock);
+
+  return result;
 }