Revert "Properly check for short writes when sending the response in nscd"

This reverts commit dd31ac7a8e0d4cc24eee6815f9101caa5aa64291.

4 files changed, 8 insertions, 25 deletions

diff --git a/nscd/grpcache.c b/nscd/grpcache.c
index a26548c3d2..d25d8e92f2 100644
--- a/nscd/grpcache.c
+++ b/nscd/grpcache.c
@@ -75,7 +75,6 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
 	     const void *key, struct group *grp, uid_t owner,
 	     struct hashentry *const he, struct datahead *dh, int errval)
 {
-  bool all_written = true;
   ssize_t total;
   ssize_t written;
   time_t t = time (NULL);
@@ -343,9 +342,6 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
 # endif
 #endif
 	    written = writeall (fd, &dataset->resp, dataset->head.recsize);
-
-	  if (written != dataset->head.recsize)
-	    all_written = false;
 	}
 
       /* Add the record to the database.  But only if it has not been
@@ -405,7 +401,7 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
 	}
     }
 
-  if (__builtin_expect (!all_written, 0) && debug_level > 0)
+  if (__builtin_expect (written != total, 0) && debug_level > 0)
     {
       char buf[256];
       dbg_log (_("short write in %s: %s"),  __FUNCTION__,
diff --git a/nscd/initgrcache.c b/nscd/initgrcache.c
index 94b279d559..196407c870 100644
--- a/nscd/initgrcache.c
+++ b/nscd/initgrcache.c
@@ -171,12 +171,10 @@ addinitgroupsX (struct database_dyn *db, int fd, request_header *req,
 	nip = nip->next;
     }
 
-  bool all_written;
   ssize_t total;
   ssize_t written;
   time_t timeout;
  out:
-  all_written = true;
   timeout = MAX_TIMEOUT_VALUE;
   if (!any_success)
     {
@@ -381,9 +379,6 @@ addinitgroupsX (struct database_dyn *db, int fd, request_header *req,
 # endif
 #endif
 	    written = writeall (fd, &dataset->resp, dataset->head.recsize);
-
-	  if (written != dataset->head.recsize)
-	    all_written = false;
 	}
 
 
@@ -410,7 +405,7 @@ addinitgroupsX (struct database_dyn *db, int fd, request_header *req,
 
   free (groups);
 
-  if (__builtin_expect (!all_written, 0) && debug_level > 0)
+  if (__builtin_expect (written != total, 0) && debug_level > 0)
     {
       char buf[256];
       dbg_log (_("short write in %s: %s"), __FUNCTION__,
diff --git a/nscd/pwdcache.c b/nscd/pwdcache.c
index bfc183150d..ef492b58c1 100644
--- a/nscd/pwdcache.c
+++ b/nscd/pwdcache.c
@@ -81,7 +81,6 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
 	     const void *key, struct passwd *pwd, uid_t owner,
 	     struct hashentry *const he, struct datahead *dh, int errval)
 {
-  bool all_written = true;
   ssize_t total;
   ssize_t written;
   time_t t = time (NULL);
@@ -307,7 +306,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
 			  + db->head->data_size));
 	      written = sendfileall (fd, db->wr_fd,
 				     (char *) &dataset->resp
-				     - (char *) db->head, dataset->head.recsize);
+				     - (char *) db->head, dataset->head.recsize );
 # ifndef __ASSUME_SENDFILE
 	      if (written == -1 && errno == ENOSYS)
 		goto use_write;
@@ -319,9 +318,6 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
 # endif
 #endif
 	    written = writeall (fd, &dataset->resp, dataset->head.recsize);
-
-	  if (written != dataset->head.recsize)
-	    all_written = false;
 	}
 
 
@@ -381,7 +377,7 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
 	}
     }
 
-  if (__builtin_expect (!all_written, 0) && debug_level > 0)
+  if (__builtin_expect (written != total, 0) && debug_level > 0)
     {
       char buf[256];
       dbg_log (_("short write in %s: %s"),  __FUNCTION__,
diff --git a/nscd/servicescache.c b/nscd/servicescache.c
index b16f9e5866..d29cde7d63 100644
--- a/nscd/servicescache.c
+++ b/nscd/servicescache.c
@@ -65,7 +65,6 @@ cache_addserv (struct database_dyn *db, int fd, request_header *req,
 	       const void *key, struct servent *serv, uid_t owner,
 	       struct hashentry *const he, struct datahead *dh, int errval)
 {
-  bool all_written = true;
   ssize_t total;
   ssize_t written;
   time_t t = time (NULL);
@@ -291,14 +290,14 @@ cache_addserv (struct database_dyn *db, int fd, request_header *req,
 	    {
 	      assert (db->wr_fd != -1);
 	      assert ((char *) &dataset->resp > (char *) db->data);
-	      assert ((char *) dataset - (char *) db->head
+	      assert ((char *) &dataset->resp - (char *) db->head
 		      + total
 		      <= (sizeof (struct database_pers_head)
 			  + db->head->module * sizeof (ref_t)
 			  + db->head->data_size));
 	      written = sendfileall (fd, db->wr_fd,
 				     (char *) &dataset->resp
-				     - (char *) db->head, dataset->head.recsize);
+				     - (char *) db->head, total);
 # ifndef __ASSUME_SENDFILE
 	      if (written == -1 && errno == ENOSYS)
 		goto use_write;
@@ -309,10 +308,7 @@ cache_addserv (struct database_dyn *db, int fd, request_header *req,
 	  use_write:
 # endif
 #endif
-	    written = writeall (fd, &dataset->resp, dataset->head.recsize);
-
-	  if (written != dataset->head.recsize)
-	    all_written = false;
+	    written = writeall (fd, &dataset->resp, total);
 	}
 
       /* Add the record to the database.  But only if it has not been
@@ -336,7 +332,7 @@ cache_addserv (struct database_dyn *db, int fd, request_header *req,
 	}
     }
 
-  if (__builtin_expect (!all_written, 0) && debug_level > 0)
+  if (__builtin_expect (written != total, 0) && debug_level > 0)
     {
       char buf[256];
       dbg_log (_("short write in %s: %s"),  __FUNCTION__,