* nis/nss_nis/nis-alias.c: Optimize use of yperr2nss. Avoid calling

	it for YPERR_SUCCESS.  Minor cleanups.  Add __builtin_expect.
	* nis/nss_nis/nis-ethers.c: Likewise.
	* nis/nss_nis/nis-grp.c: Likewise.
	* nis/nss_nis/nis-hosts.c: Likewise.
	* nis/nss_nis/nis-initgroups.c: Likewise.
	* nis/nss_nis/nis-netgrp.c: Likewise.
	* nis/nss_nis/nis-network.c: Likewise.
	* nis/nss_nis/nis-proto.c: Likewise.
	* nis/nss_nis/nis-publickey.c: Likewise.
	* nis/nss_nis/nis-pwd.c: Likewise.
	* nis/nss_nis/nis-rpc.c: Likewise.
	* nis/nss_nis/nis-service.c: Likewise.
	* nis/nss_nis/nis-spwd.c: Likewise.

1 files changed, 38 insertions, 37 deletions

diff --git a/nis/nss_nis/nis-ethers.c b/nis/nss_nis/nis-ethers.c
index def4c22510..a3064282ab 100644
--- a/nis/nss_nis/nis-ethers.c
+++ b/nis/nss_nis/nis-ethers.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
 
@@ -182,45 +182,46 @@ enum nss_status
 _nss_nis_gethostton_r (const char *name, struct etherent *eth,
 		       char *buffer, size_t buflen, int *errnop)
 {
-  struct parser_data *data = (void *) buffer;
-  enum nss_status retval;
-  char *domain, *result, *p;
-  int len, parse_res;
-
   if (name == NULL)
     {
       *errnop = EINVAL;
       return NSS_STATUS_UNAVAIL;
     }
 
-  if (yp_get_default_domain (&domain))
+  char *domain;
+  if (__builtin_expect (yp_get_default_domain (&domain), 0))
     return NSS_STATUS_UNAVAIL;
 
-  retval = yperr2nss (yp_match (domain, "ethers.byname", name,
-				strlen (name), &result, &len));
+  char *result;
+  int len;
+  int yperr = yp_match (domain, "ethers.byname", name, strlen (name), &result,
+			&len);
 
-  if (retval != NSS_STATUS_SUCCESS)
+  if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
     {
+      enum nss_status retval = yperr2nss (yperr);
+
       if (retval == NSS_STATUS_TRYAGAIN)
         *errnop = errno;
       return retval;
     }
 
-  if ((size_t) (len + 1) > buflen)
+  if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
     {
       free (result);
       *errnop = ERANGE;
       return NSS_STATUS_TRYAGAIN;
     }
 
-  p = strncpy (buffer, result, len);
+  char *p = strncpy (buffer, result, len);
   buffer[len] = '\0';
   while (isspace (*p))
     ++p;
   free (result);
 
-  parse_res = _nss_files_parse_etherent (p, eth, data, buflen, errnop);
-  if (parse_res < 1)
+  int parse_res = _nss_files_parse_etherent (p, eth, (void *) buffer, buflen,
+					     errnop);
+  if (__builtin_expect (parse_res < 1, 0))
     {
       if (parse_res == -1)
 	return NSS_STATUS_TRYAGAIN;
@@ -234,54 +235,54 @@ enum nss_status
 _nss_nis_getntohost_r (const struct ether_addr *addr, struct etherent *eth,
 		       char *buffer, size_t buflen, int *errnop)
 {
-  struct parser_data *data = (void *) buffer;
-  enum nss_status retval;
-  char *domain, *result, *p;
-  int len, nlen, parse_res;
-  char buf[33];
-
   if (addr == NULL)
     {
       *errnop = EINVAL;
       return NSS_STATUS_UNAVAIL;
     }
 
-  if (yp_get_default_domain (&domain))
+  char *domain;
+  if (__builtin_expect (yp_get_default_domain (&domain), 0))
     return NSS_STATUS_UNAVAIL;
 
-  nlen = sprintf (buf, "%x:%x:%x:%x:%x:%x",
-		  (int) addr->ether_addr_octet[0],
-		  (int) addr->ether_addr_octet[1],
-		  (int) addr->ether_addr_octet[2],
-		  (int) addr->ether_addr_octet[3],
-		  (int) addr->ether_addr_octet[4],
-		  (int) addr->ether_addr_octet[5]);
-
-  retval = yperr2nss (yp_match (domain, "ethers.byaddr", buf,
-				nlen, &result, &len));
-
-  if (retval != NSS_STATUS_SUCCESS)
+  char buf[33];
+  int nlen = snprintf (buf, sizeof (buf), "%x:%x:%x:%x:%x:%x",
+		      (int) addr->ether_addr_octet[0],
+		      (int) addr->ether_addr_octet[1],
+		      (int) addr->ether_addr_octet[2],
+		      (int) addr->ether_addr_octet[3],
+		      (int) addr->ether_addr_octet[4],
+		      (int) addr->ether_addr_octet[5]);
+
+  char *result;
+  int len;
+  int yperr = yp_match (domain, "ethers.byaddr", buf, nlen, &result, &len);
+
+  if (__builtin_expect (yperr != YPERR_SUCCESS, 0))
     {
+      enum nss_status retval = yperr2nss (yperr);
+
       if (retval == NSS_STATUS_TRYAGAIN)
         *errnop = errno;
       return retval;
     }
 
-  if ((size_t) (len + 1) > buflen)
+  if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
     {
       free (result);
       *errnop = ERANGE;
       return NSS_STATUS_TRYAGAIN;
     }
 
-  p = strncpy (buffer, result, len);
+  char *p = strncpy (buffer, result, len);
   buffer[len] = '\0';
   while (isspace (*p))
     ++p;
   free (result);
 
-  parse_res = _nss_files_parse_etherent (p, eth, data, buflen, errnop);
-  if (parse_res < 1)
+  int parse_res = _nss_files_parse_etherent (p, eth, (void *) buffer, buflen,
+					     errnop);
+  if (__builtin_expect (parse_res < 1, 0))
     {
       if (parse_res == -1)
 	return NSS_STATUS_TRYAGAIN;