Use glibc_likely instead __builtin_expect.

[jlayton/glibc.git] / resolv / nss_dns / dns-host.c

diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index f8f192e5afb54f22667066e461a91a0e8d00d3a0..541c25a348037913aab6b0e790c908bf7fd1beb2 100644 (file)
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -398,7 +398,7 @@ _nss_dns_gethostbyaddr2_r (const void *addr, socklen_t len, int af,
  buffer += pad;
  buflen = buflen > pad ? buflen - pad : 0;
 
- if (__builtin_expect (buflen < sizeof (struct host_data), 0))
+ if (__glibc_unlikely (buflen < sizeof (struct host_data)))
    {
      *errnop = ERANGE;
      *h_errnop = NETDB_INTERNAL;
@@ -452,7 +452,7 @@ _nss_dns_gethostbyaddr2_r (const void *addr, socklen_t len, int af,
       break;
     case AF_INET6:
       /* Only lookup with the byte string format if the user wants it.  */
-      if (__builtin_expect (_res.options & RES_USEBSTRING, 0))
+      if (__glibc_unlikely (_res.options & RES_USEBSTRING))
        {
          qp = stpcpy (qbuf, "\\[x");
          for (n = 0; n < IN6ADDRSZ; ++n)
@@ -613,7 +613,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
   int have_to_map = 0;
   uintptr_t pad = -(uintptr_t) buffer % __alignof__ (struct host_data);
   buffer += pad;
-  if (__builtin_expect (buflen < sizeof (struct host_data) + pad, 0))
+  if (__glibc_unlikely (buflen < sizeof (struct host_data) + pad))
     {
       /* The buffer is too small.  */
     too_small:
@@ -727,14 +727,14 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
          n = -1;
        }
 
-      if (__builtin_expect (n < 0 || (*name_ok) (bp) == 0, 0))
+      if (__glibc_unlikely (n < 0 || (*name_ok) (bp) == 0))
        {
          ++had_error;
          continue;
        }
       cp += n;                         /* name */
 
-      if (__builtin_expect (cp + 10 > end_of_message, 0))
+      if (__glibc_unlikely (cp + 10 > end_of_message))
        {
          ++had_error;
          continue;
@@ -748,7 +748,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
       cp += INT32SZ;                   /* TTL */
       n = __ns_get16 (cp);
       cp += INT16SZ;                   /* len */
-      if (__builtin_expect (class != C_IN, 0))
+      if (__glibc_unlikely (class != C_IN))
        {
          /* XXX - debug? syslog? */
          cp += n;
@@ -764,7 +764,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
          if (ap >= &host_data->aliases[MAX_NR_ALIASES - 1])
            continue;
          n = dn_expand (answer->buf, end_of_message, cp, tbuf, sizeof tbuf);
-         if (__builtin_expect (n < 0 || (*name_ok) (tbuf) == 0, 0))
+         if (__glibc_unlikely (n < 0 || (*name_ok) (tbuf) == 0))
            {
              ++had_error;
              continue;
@@ -782,7 +782,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
          linebuflen -= n;
          /* Get canonical name.  */
          n = strlen (tbuf) + 1;        /* For the \0.  */
-         if (__builtin_expect (n > linebuflen, 0))
+         if (__glibc_unlikely (n > linebuflen))
            goto too_small;
          if (__builtin_expect (n, 0) >= MAXHOSTNAMELEN)
            {
@@ -798,7 +798,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
       if (qtype == T_PTR && type == T_CNAME)
        {
          n = dn_expand (answer->buf, end_of_message, cp, tbuf, sizeof tbuf);
-         if (__builtin_expect (n < 0 || res_dnok (tbuf) == 0, 0))
+         if (__glibc_unlikely (n < 0 || res_dnok (tbuf) == 0))
            {
              ++had_error;
              continue;
@@ -806,7 +806,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
          cp += n;
          /* Get canonical name.  */
          n = strlen (tbuf) + 1;   /* For the \0.  */
-         if (__builtin_expect (n > linebuflen, 0))
+         if (__glibc_unlikely (n > linebuflen))
            goto too_small;
          if (__builtin_expect (n, 0) >= MAXHOSTNAMELEN)
            {
@@ -833,7 +833,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
 
       if (type == T_A && qtype == T_AAAA && map)
        have_to_map = 1;
-      else if (__builtin_expect (type != qtype, 0))
+      else if (__glibc_unlikely (type != qtype))
        {
          syslog (LOG_NOTICE | LOG_AUTH,
               "gethostby*.getanswer: asked for \"%s %s %s\", got type \"%s\"",
@@ -845,7 +845,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
       switch (type)
        {
        case T_PTR:
-         if (__builtin_expect (strcasecmp (tname, bp) != 0, 0))
+         if (__glibc_unlikely (strcasecmp (tname, bp) != 0))
            {
              syslog (LOG_NOTICE | LOG_AUTH, AskedForGot, qname, bp);
              cp += n;
@@ -862,7 +862,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
              n = -1;
            }
 
-         if (__builtin_expect (n < 0 || res_hnok (bp) == 0, 0))
+         if (__glibc_unlikely (n < 0 || res_hnok (bp) == 0))
            {
              ++had_error;
              break;
@@ -892,7 +892,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
          if (have_to_map)
            {
              n = strlen (bp) + 1;      /* for the \0 */
-             if (__builtin_expect (n >= MAXHOSTNAMELEN, 0))
+             if (__glibc_unlikely (n >= MAXHOSTNAMELEN))
                {
                  ++had_error;
                  break;
@@ -938,7 +938,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
          linebuflen -= sizeof (align) - ((u_long) bp % sizeof (align));
          bp += sizeof (align) - ((u_long) bp % sizeof (align));
 
-         if (__builtin_expect (n > linebuflen, 0))
+         if (__glibc_unlikely (n > linebuflen))
            goto too_small;
          bp = __mempcpy (*hap++ = bp, cp, n);
          cp += n;
@@ -1009,7 +1009,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
   int qdcount = ntohs (hp->qdcount);
   const u_char *cp = answer->buf + HFIXEDSZ;
   const u_char *end_of_message = answer->buf + anslen;
-  if (__builtin_expect (qdcount != 1, 0))
+  if (__glibc_unlikely (qdcount != 1))
     {
       *h_errnop = NO_RECOVERY;
       return NSS_STATUS_UNAVAIL;
@@ -1063,7 +1063,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
 
          n = -1;
        }
-      if (__builtin_expect (n < 0 || res_hnok (buffer) == 0, 0))
+      if (__glibc_unlikely (n < 0 || res_hnok (buffer) == 0))
        {
          ++had_error;
          continue;
@@ -1077,7 +1077,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
 
       cp += n;                         /* name */
 
-      if (__builtin_expect (cp + 10 > end_of_message, 0))
+      if (__glibc_unlikely (cp + 10 > end_of_message))
        {
          ++had_error;
          continue;
@@ -1107,7 +1107,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
              *ttlp = ttl;
 
          n = dn_expand (answer->buf, end_of_message, cp, tbuf, sizeof tbuf);
-         if (__builtin_expect (n < 0 || res_hnok (tbuf) == 0, 0))
+         if (__glibc_unlikely (n < 0 || res_hnok (tbuf) == 0))
            {
              ++had_error;
              continue;
@@ -1124,9 +1124,9 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
                }
 
              n = strlen (tbuf) + 1;
-             if (__builtin_expect (n > buflen, 0))
+             if (__glibc_unlikely (n > buflen))
                goto too_small;
-             if (__builtin_expect (n >= MAXHOSTNAMELEN, 0))
+             if (__glibc_unlikely (n >= MAXHOSTNAMELEN))
                {
                  ++had_error;
                  continue;
@@ -1143,7 +1143,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
       // We should not see any types other than those explicitly listed
       // below.  Some types sent by server seem missing, though.  Just
       // collect the data for now.
-      if (__builtin_expect (type != T_A && type != T_AAAA, 0))
+      if (__glibc_unlikely (type != T_A && type != T_AAAA))
 #else
       if (__builtin_expect (type == T_SIG, 0)
          || __builtin_expect (type == T_KEY, 0)