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.
This commit is contained in:
Ulrich Drepper 2003-04-28 08:17:29 +00:00
parent fe45381231
commit 12c8051397
4 changed files with 60 additions and 74 deletions

View File

@ -1,3 +1,9 @@
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.
2003-04-27 Ulrich Drepper <drepper@redhat.com> 2003-04-27 Ulrich Drepper <drepper@redhat.com>
* nscd/pwdcache.c: Initialize .version element in result. * nscd/pwdcache.c: Initialize .version element in result.

View File

@ -70,6 +70,7 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
gr_response_header gr_resp; gr_response_header gr_resp;
ssize_t nbytes; ssize_t nbytes;
struct iovec vec[2]; struct iovec vec[2];
int result = -1;
if (sock == -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)); nbytes = TEMP_FAILURE_RETRY (__writev (sock, vec, 2));
if (nbytes != (ssize_t) (sizeof (request_header) + keylen)) if (nbytes != (ssize_t) (sizeof (request_header) + keylen))
{ goto out;
__close (sock);
return -1;
}
nbytes = TEMP_FAILURE_RETRY (__read (sock, &gr_resp, nbytes = TEMP_FAILURE_RETRY (__read (sock, &gr_resp,
sizeof (gr_response_header))); sizeof (gr_response_header)));
if (nbytes != (ssize_t) sizeof (gr_response_header)) if (nbytes != (ssize_t) sizeof (gr_response_header))
{ goto out;
__close (sock);
return -1;
}
if (gr_resp.found == -1) if (gr_resp.found == -1)
{ {
/* The daemon does not cache this database. */ /* The daemon does not cache this database. */
__close (sock);
__nss_not_use_nscd_group = 1; __nss_not_use_nscd_group = 1;
return -1; goto out;
} }
if (gr_resp.found == 1) if (gr_resp.found == 1)
@ -123,12 +117,12 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
& (__alignof__ (char *) - 1)); & (__alignof__ (char *) - 1));
total_len = align + (1 + gr_resp.gr_mem_cnt) * sizeof (char *) total_len = align + (1 + gr_resp.gr_mem_cnt) * sizeof (char *)
+ gr_resp.gr_name_len + gr_resp.gr_passwd_len; + gr_resp.gr_name_len + gr_resp.gr_passwd_len;
if (buflen < total_len) if (__builtin_expect (buflen < total_len, 0))
{ {
no_room: no_room:
__set_errno (ERANGE); __set_errno (ERANGE);
__close (sock); result = ERANGE;
return ERANGE; goto out;
} }
buflen -= total_len; 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; total_len += gr_resp.gr_name_len + gr_resp.gr_passwd_len;
/* Get this data. */ /* Get this data. */
if ((size_t) TEMP_FAILURE_RETRY (__readv (sock, vec, 2)) != total_len) size_t n = TEMP_FAILURE_RETRY (__readv (sock, vec, 2));
{ if (__builtin_expect (n != total_len, 0))
__close (sock); goto out;
return -1;
}
/* Clear the terminating entry. */ /* Clear the terminating entry. */
resultbuf->gr_mem[gr_resp.gr_mem_cnt] = NULL; 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]; p += len[cnt];
} }
if (total_len > buflen) if (__builtin_expect (total_len > buflen, 0))
goto no_room; goto no_room;
if ((size_t) TEMP_FAILURE_RETRY (__read (sock, resultbuf->gr_mem[0], result = 0;
total_len)) != total_len) 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. */ /* The `errno' to some value != ERANGE. */
__set_errno (ENOENT); __set_errno (ENOENT);
return ENOENT; result = ENOENT;
} }
__close (sock);
return 0;
} }
else else
{ {
__close (sock);
/* The `errno' to some value != ERANGE. */ /* The `errno' to some value != ERANGE. */
__set_errno (ENOENT); __set_errno (ENOENT);
return ENOENT; result = ENOENT;
} }
out:
__close (sock);
return result;
} }

View File

@ -124,6 +124,7 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
request_header req; request_header req;
ssize_t nbytes; ssize_t nbytes;
struct iovec vec[4]; struct iovec vec[4];
int result = -1;
if (sock == -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)); nbytes = TEMP_FAILURE_RETRY (__writev (sock, vec, 2));
if ((size_t) nbytes != sizeof (request_header) + req.key_len) if ((size_t) nbytes != sizeof (request_header) + req.key_len)
{ goto out;
__close (sock);
return -1;
}
nbytes = TEMP_FAILURE_RETRY (__read (sock, &hst_resp, nbytes = TEMP_FAILURE_RETRY (__read (sock, &hst_resp,
sizeof (hst_response_header))); sizeof (hst_response_header)));
if (nbytes != sizeof (hst_response_header)) if (__builtin_expect (nbytes != sizeof (hst_response_header), 0))
{ goto out;
__close (sock);
return -1;
}
if (hst_resp.found == -1) if (hst_resp.found == -1)
{ {
/* The daemon does not cache this database. */ /* The daemon does not cache this database. */
__close (sock);
__nss_not_use_nscd_hosts = 1; __nss_not_use_nscd_hosts = 1;
return -1; goto out;
} }
if (hst_resp.found == 1) if (hst_resp.found == 1)
@ -190,8 +184,8 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
{ {
no_room: no_room:
__set_errno (ERANGE); __set_errno (ERANGE);
__close (sock); result = ERANGE;
return ERANGE; goto out;
} }
cp += align1; cp += align1;
@ -264,10 +258,7 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
resultbuf->h_addr_list[cnt] = NULL; resultbuf->h_addr_list[cnt] = NULL;
if ((size_t) TEMP_FAILURE_RETRY (__readv (sock, vec, n)) != total_len) if ((size_t) TEMP_FAILURE_RETRY (__readv (sock, vec, n)) != total_len)
{ goto out;
__close (sock);
return -1;
}
/* Now we also can read the aliases. */ /* Now we also can read the aliases. */
total_len = 0; total_len = 0;
@ -285,23 +276,21 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
/* And finally read the aliases. */ /* And finally read the aliases. */
if ((size_t) TEMP_FAILURE_RETRY (__read (sock, resultbuf->h_aliases[0], if ((size_t) TEMP_FAILURE_RETRY (__read (sock, resultbuf->h_aliases[0],
total_len)) != total_len) total_len)) == total_len)
{ result = 0;
__close (sock);
return -1;
}
__close (sock);
return 0;
} }
else else
{ {
/* Store the error number. */ /* Store the error number. */
*h_errnop = hst_resp.error; *h_errnop = hst_resp.error;
__close (sock);
/* The `errno' to some value != ERANGE. */ /* The `errno' to some value != ERANGE. */
__set_errno (ENOENT); __set_errno (ENOENT);
return ENOENT; result = ENOENT;
} }
out:
__close (sock);
return result;
} }

View File

@ -71,6 +71,7 @@ nscd_getpw_r (const char *key, size_t keylen, request_type type,
pw_response_header pw_resp; pw_response_header pw_resp;
ssize_t nbytes; ssize_t nbytes;
struct iovec vec[2]; struct iovec vec[2];
int result = -1;
if (sock == -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)); nbytes = TEMP_FAILURE_RETRY (__writev (sock, vec, 2));
if (nbytes != (ssize_t) (sizeof (request_header) + keylen)) if (nbytes != (ssize_t) (sizeof (request_header) + keylen))
{ goto out;
__close (sock);
return -1;
}
nbytes = TEMP_FAILURE_RETRY (__read (sock, &pw_resp, nbytes = TEMP_FAILURE_RETRY (__read (sock, &pw_resp,
sizeof (pw_response_header))); sizeof (pw_response_header)));
if (nbytes != (ssize_t) sizeof (pw_response_header)) if (nbytes != (ssize_t) sizeof (pw_response_header))
{ goto out;
__close (sock);
return -1;
}
if (pw_resp.found == -1) if (__builtin_expect (pw_resp.found == -1, 0))
{ {
/* The daemon does not cache this database. */ /* The daemon does not cache this database. */
__close (sock);
__nss_not_use_nscd_passwd = 1; __nss_not_use_nscd_passwd = 1;
return -1; goto out;
} }
if (pw_resp.found == 1) 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_gecos_len + pw_resp.pw_dir_len
+ pw_resp.pw_shell_len); + pw_resp.pw_shell_len);
if (buflen < total) if (__builtin_expect (buflen < total, 0))
{ {
__set_errno (ERANGE); __set_errno (ERANGE);
__close (sock); result = ERANGE;
return ERANGE; goto out;
} }
/* Set the information we already have. */ /* 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)); nbytes = TEMP_FAILURE_RETRY (__read (sock, buffer, total));
__close (sock); if (nbytes == (ssize_t) total)
result = 0;
return nbytes == (ssize_t) total ? 0 : -1;
} }
else else
{ {
__close (sock);
/* The `errno' to some value != ERANGE. */ /* The `errno' to some value != ERANGE. */
__set_errno (ENOENT); __set_errno (ENOENT);
return ENOENT; result = ENOENT;
} }
out:
__close (sock);
return result;
} }