* nscd/nscd-client.h: Include sys/uio.h.

(__readall, __readvall, writeall): New prototypes.
	* nscd/connections.c (writeall): New function.
	(handle_request): Use it.
	* nscd/aicache.c (addhstaiX): Likewise.
	* nscd/initgrcache.c (addinitgroupsX): Likewise.
	* nscd/hstcache.c (cache_addhst): Likewise.
	* nscd/grpcache.c (cache_addgr): Likewise.
	* nscd/pwdcache.c (cache_addpw): Likewise.
	* nscd/nscd_helper.c (__readall, __readvall): New functions.
	* nscd/nscd_getai.c (__nscd_getai): Use them.
	* nscd/nscd_getpw_r.c (__nscd_getpw_r): Likewise.
	* nscd/nscd_getgr_r.c (__nscd_getgr_r): Likewise.
	* nscd/nscd_gethst_r.c (__nscd_gethst_r): Likewise.
	* nscd/nscd_initgroups.c (__nscd_getgrouplist): Likewise.

ChangeLog

@@ -1,3 +1,21 @@
+2005-02-22  Jakub Jelinek  <jakub@redhat.com>
+
+	* nscd/nscd-client.h: Include sys/uio.h.
+	(__readall, __readvall, writeall): New prototypes.
+	* nscd/connections.c (writeall): New function.
+	(handle_request): Use it.
+	* nscd/aicache.c (addhstaiX): Likewise.
+	* nscd/initgrcache.c (addinitgroupsX): Likewise.
+	* nscd/hstcache.c (cache_addhst): Likewise.
+	* nscd/grpcache.c (cache_addgr): Likewise.
+	* nscd/pwdcache.c (cache_addpw): Likewise.
+	* nscd/nscd_helper.c (__readall, __readvall): New functions.
+	* nscd/nscd_getai.c (__nscd_getai): Use them.
+	* nscd/nscd_getpw_r.c (__nscd_getpw_r): Likewise.
+	* nscd/nscd_getgr_r.c (__nscd_getgr_r): Likewise.
+	* nscd/nscd_gethst_r.c (__nscd_gethst_r): Likewise.
+	* nscd/nscd_initgroups.c (__nscd_getgrouplist): Likewise.
+
 2005-02-22  Roland McGrath  <roland@redhat.com>
 
 	* include/sys/socket.h: Declare __recv.

nscd/aicache.c

@@ -1,5 +1,5 @@
 /* Cache handling for host lookup.
-   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.
 
@@ -365,7 +365,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
 		     wait.  */
 		  assert (fd != -1);
 
-		  TEMP_FAILURE_RETRY (write (fd, &dataset->resp, total));
+		  writeall (fd, &dataset->resp, total);
 		}
 
 	      goto out;

nscd/connections.c

@@ -181,13 +181,28 @@ static int sock;
 unsigned long int client_queued;
 
 
+ssize_t
+writeall (int fd, const void *buf, size_t len)
+{
+  size_t n = len;
+  ssize_t ret;
+  do
+    {
+      ret = TEMP_FAILURE_RETRY (write (fd, buf, n));
+      if (ret <= 0)
+	break;
+      buf = (const char *) buf + ret;
+      n -= ret;
+    }
+  while (n > 0);
+  return ret < 0 ? ret : len - n;
+}
+
+
 /* Initialize database information structures.  */
 void
 nscd_init (void)
 {
-  struct sockaddr_un sock_addr;
-  size_t cnt;
-
   /* Secure mode and unprivileged mode are incompatible */
   if (server_user != NULL && secure_in_use)
     {
@@ -204,7 +219,7 @@ nscd_init (void)
     /* No configuration for this value, assume a default.  */
     nthreads = 2 * lastdb;
 
-  for (cnt = 0; cnt < lastdb; ++cnt)
+  for (size_t cnt = 0; cnt < lastdb; ++cnt)
     if (dbs[cnt].enabled)
       {
 	pthread_rwlock_init (&dbs[cnt].lock, NULL);
@@ -500,6 +515,7 @@ cannot set socket to close on exec: %s; disabling paranoia mode"),
       exit (1);
     }
   /* Bind a name to the socket.  */
+  struct sockaddr_un sock_addr;
   sock_addr.sun_family = AF_UNIX;
   strcpy (sock_addr.sun_path, _PATH_NSCDSOCKET);
   if (bind (sock, (struct sockaddr *) &sock_addr, sizeof (sock_addr)) < 0)
@@ -691,7 +707,7 @@ cannot handle old request version %d; current version is %d"),
       if (cached != NULL)
 	{
 	  /* Hurray it's in the cache.  */
-	  if (TEMP_FAILURE_RETRY (write (fd, cached->data, cached->recsize))
+	  if (writeall (fd, cached->data, cached->recsize)
 	      != cached->recsize
 	      && __builtin_expect (debug_level, 0) > 0)
 	    {

nscd/grpcache.c

@@ -292,7 +292,7 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
 	     unnecessarily let the receiver wait.  */
 	  assert (fd != -1);
 
-	  written = TEMP_FAILURE_RETRY (write (fd, &dataset->resp, total));
+	  written = writeall (fd, &dataset->resp, total);
 	}
 
       /* Add the record to the database.  But only if it has not been

nscd/hstcache.c

@@ -327,7 +327,7 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
 	     unnecessarily keep the receiver waiting.  */
 	  assert (fd != -1);
 
-	  written = TEMP_FAILURE_RETRY (write (fd, &dataset->resp, total));
+	  written = writeall (fd, &dataset->resp, total);
 	}
 
       /* Add the record to the database.  But only if it has not been

nscd/initgrcache.c

@@ -1,5 +1,5 @@
 /* Cache handling for host lookup.
-   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.
 
@@ -343,7 +343,7 @@ addinitgroupsX (struct database_dyn *db, int fd, request_header *req,
 	     unnecessarily let the receiver wait.  */
 	  assert (fd != -1);
 
-	  written = TEMP_FAILURE_RETRY (write (fd, &dataset->resp, total));
+	  written = writeall (fd, &dataset->resp, total);
 	}
 
 

nscd/nscd_getai.c

@@ -119,8 +119,7 @@ __nscd_getai (const char *key, struct nscd_ai_result **result, int *h_errnop)
       if (respdata == NULL)
 	{
 	  /* Read the data from the socket.  */
-	  if ((size_t) TEMP_FAILURE_RETRY (__read (sock, resultbuf + 1,
+	  if ((size_t) __readall (sock, resultbuf + 1, datalen) == datalen)
-						   datalen)) == datalen)
 	    {
 	      retval = 0;
 	      *result = resultbuf;

nscd/nscd_getgr_r.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004
+/* Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 1998.
@@ -202,7 +202,7 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
 	  total_len = vec[0].iov_len + vec[1].iov_len;
 
 	  /* Get this data.  */
-	  size_t n = TEMP_FAILURE_RETRY (__readv (sock, vec, 2));
+	  size_t n = __readvall (sock, vec, 2);
 	  if (__builtin_expect (n != total_len, 0))
 	    goto out_close;
 	}
@@ -232,8 +232,7 @@ nscd_getgr_r (const char *key, size_t keylen, request_type type,
       retval = 0;
       if (gr_name == NULL)
 	{
-	  size_t n = TEMP_FAILURE_RETRY (__read (sock, resultbuf->gr_mem[0],
+	  size_t n = __readall (sock, resultbuf->gr_mem[0], total_len);
-						 total_len));
 	  if (__builtin_expect (n != total_len, 0))
 	    {
 	      /* The `errno' to some value != ERANGE.  */

nscd/nscd_gethst_r.c

@@ -299,8 +299,7 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
 	      ++n;
 	    }
 
-	  if ((size_t) TEMP_FAILURE_RETRY (__readv (sock, vec, n))
+	  if ((size_t) __readvall (sock, vec, n) != total_len)
-	      != total_len)
 	    goto out_close;
 	}
       else
@@ -329,9 +328,8 @@ nscd_gethst_r (const char *key, size_t keylen, request_type type,
       /* And finally read the aliases.  */
       if (addr_list == NULL)
 	{
-	  if ((size_t) TEMP_FAILURE_RETRY (__read (sock,
+	  if ((size_t) __readall (sock, resultbuf->h_aliases[0], total_len)
-						   resultbuf->h_aliases[0],
+	      == total_len)
-						   total_len)) == total_len)
 	    {
 	      retval = 0;
 	      *result = resultbuf;

nscd/nscd_getpw_r.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 1998.
 
@@ -172,7 +172,7 @@ nscd_getpw_r (const char *key, size_t keylen, request_type type,
       retval = 0;
       if (pw_name == NULL)
 	{
-	  ssize_t nbytes = TEMP_FAILURE_RETRY (__read (sock, buffer, total));
+	  ssize_t nbytes = __readall (sock, buffer, total);
 
 	  if (__builtin_expect (nbytes != total, 0))
 	    {

nscd/nscd_helper.c

@@ -34,6 +34,64 @@
 #include "nscd-client.h"
 
 
+ssize_t
+__readall (int fd, void *buf, size_t len)
+{
+  size_t n = len;
+  ssize_t ret;
+  do
+    {
+      ret = TEMP_FAILURE_RETRY (__read (fd, buf, n));
+      if (ret <= 0)
+	break;
+      buf = (char *) buf + ret;
+      n -= ret;
+    }
+  while (n > 0);
+  return ret < 0 ? ret : len - n;
+}
+
+
+ssize_t
+__readvall (int fd, const struct iovec *iov, int iovcnt)
+{
+  ssize_t ret = TEMP_FAILURE_RETRY (__readv (fd, iov, iovcnt));
+  if (ret <= 0)
+    return ret;
+
+  size_t total = 0;
+  for (int i = 0; i < iovcnt; ++i)
+    total += iov[i].iov_len;
+
+  if (ret < total)
+    {
+      struct iovec iov_buf[iovcnt];
+      ssize_t r = ret;
+
+      struct iovec *iovp = memcpy (iov_buf, iov, iovcnt * sizeof (*iov));
+      do
+	{
+	  while (iovp->iov_len <= r)
+	    {
+	      r -= iovp->iov_len;
+	      --iovcnt;
+	      ++iovp;
+	    }
+	  iovp->iov_base = (char *) iovp->iov_base + r;
+	  iovp->iov_len -= r;
+	  r = TEMP_FAILURE_RETRY (__readv (fd, iovp, iovcnt));
+	  if (r <= 0)
+	    break;
+	  ret += r;
+	}
+      while (ret < total);
+      if (r < 0)
+	ret = r;
+    }
+  return ret;
+}
+
+
 static int
 open_socket (void)
 {

nscd/nscd_initgroups.c

@@ -110,9 +110,8 @@ __nscd_getgrouplist (const char *user, gid_t group, long int *size,
       if (respdata == NULL)
 	{
 	  /* Read the data from the socket.  */
-	  if ((size_t) TEMP_FAILURE_RETRY (__read (sock, *groupsp,
+	  if ((size_t) __readall (sock, *groupsp, initgr_resp->ngrps
-						   initgr_resp->ngrps
+						  * sizeof (gid_t))
-						   * sizeof (gid_t)))
 	      == initgr_resp->ngrps * sizeof (gid_t))
 	    retval = initgr_resp->ngrps;
 	}

nscd/pwdcache.c

@@ -287,7 +287,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
 	     unnecessarily let the receiver wait.  */
 	  assert (fd != -1);
 
-	  written = TEMP_FAILURE_RETRY (write (fd, &dataset->resp, total));
+	  written = writeall (fd, &dataset->resp, total);
 	}