r3260: redid the pvfs_dirlist() interface in preparation for a "keep
authorAndrew Tridgell <tridge@samba.org>
Tue, 26 Oct 2004 11:11:16 +0000 (11:11 +0000)
committerGerald (Jerry) Carter <jerry@samba.org>
Wed, 10 Oct 2007 18:04:47 +0000 (13:04 -0500)
directory open" implementation, as opposed to the "load the whole
directory" interface used now. This will be needed to pass RAW-SEARCH
(This used to be commit 692623c6c0a2c6817fddfa77cd1c2525c27145c4)

source4/ntvfs/posix/pvfs_dirlist.c
source4/ntvfs/posix/pvfs_search.c
source4/ntvfs/posix/pvfs_unlink.c

index 0482cda80871ede2a896894c526c542d6cfb909b..59e755d6ffa096acb239fb7c6efb85a6ed9e62b2 100644 (file)
@@ -57,12 +57,11 @@ static NTSTATUS pvfs_list_no_wildcard(struct pvfs_state *pvfs, struct pvfs_filen
 }
 
 /*
-  read a directory and find all matching file names, returning them in
-  the structure *dir. The returned names are relative to the directory
+  start to read a directory 
 
   if the pattern matches no files then we return NT_STATUS_OK, with dir->count = 0
 */
-NTSTATUS pvfs_list(struct pvfs_state *pvfs, struct pvfs_filename *name, struct pvfs_dir *dir)
+NTSTATUS pvfs_list_start(struct pvfs_state *pvfs, struct pvfs_filename *name, struct pvfs_dir *dir)
 {
        DIR *odir;
        struct dirent *dent;
@@ -134,3 +133,38 @@ NTSTATUS pvfs_list(struct pvfs_state *pvfs, struct pvfs_filename *name, struct p
        return NT_STATUS_OK;
 }
 
+
+/*
+  return unix directory of an open search
+*/
+const char *pvfs_list_unix_path(struct pvfs_dir *dir)
+{
+       return dir->unix_path;
+}
+
+/*
+  return True if end of search has been reached
+*/
+BOOL pvfs_list_eos(struct pvfs_dir *dir, uint_t ofs)
+{
+       return ofs >= dir->count;
+}
+
+/* 
+   return the next entry
+*/
+const char *pvfs_list_next(struct pvfs_dir *dir, uint_t ofs)
+{
+       if (ofs >= dir->count) return NULL;
+       return dir->names[ofs];
+}
+
+/*
+  seek to the given name
+*/
+uint_t pvfs_list_seek(struct pvfs_dir *dir, const char *name, uint_t ofs)
+{
+       /* not correct, needs to be replaced with real search when 
+          DIR* implementation is done */
+       return ofs;
+}
index 9decf0f6aec15187e2484d70b83ce495a01a8de1..5efc2f023f96fed69bb95906bdbddd316ffbb71b 100644 (file)
@@ -73,12 +73,12 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                memcpy(file->search.id.name, shortname, 
                       MIN(strlen(shortname)+1, sizeof(file->search.id.name)));
                file->search.id.handle        = search->handle;
-               file->search.id.server_cookie = dir_index+1;
+               file->search.id.server_cookie = dir_index;
                file->search.id.client_cookie = 0;
                return NT_STATUS_OK;
 
        case RAW_SEARCH_STANDARD:
-               file->standard.resume_key   = dir_index+1;
+               file->standard.resume_key   = dir_index;
                file->standard.create_time  = nt_time_to_unix(name->dos.create_time);
                file->standard.access_time  = nt_time_to_unix(name->dos.access_time);
                file->standard.write_time   = nt_time_to_unix(name->dos.write_time);
@@ -89,7 +89,7 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                return NT_STATUS_OK;
 
        case RAW_SEARCH_EA_SIZE:
-               file->ea_size.resume_key   = dir_index+1;
+               file->ea_size.resume_key   = dir_index;
                file->ea_size.create_time  = nt_time_to_unix(name->dos.create_time);
                file->ea_size.access_time  = nt_time_to_unix(name->dos.access_time);
                file->ea_size.write_time   = nt_time_to_unix(name->dos.write_time);
@@ -101,7 +101,7 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                return NT_STATUS_OK;
 
        case RAW_SEARCH_DIRECTORY_INFO:
-               file->directory_info.file_index   = dir_index+1;
+               file->directory_info.file_index   = dir_index;
                file->directory_info.create_time  = name->dos.create_time;
                file->directory_info.access_time  = name->dos.access_time;
                file->directory_info.write_time   = name->dos.write_time;
@@ -113,7 +113,7 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                return NT_STATUS_OK;
 
        case RAW_SEARCH_FULL_DIRECTORY_INFO:
-               file->full_directory_info.file_index   = dir_index+1;
+               file->full_directory_info.file_index   = dir_index;
                file->full_directory_info.create_time  = name->dos.create_time;
                file->full_directory_info.access_time  = name->dos.access_time;
                file->full_directory_info.write_time   = name->dos.write_time;
@@ -131,7 +131,7 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                return NT_STATUS_OK;
 
        case RAW_SEARCH_BOTH_DIRECTORY_INFO:
-               file->both_directory_info.file_index   = dir_index+1;
+               file->both_directory_info.file_index   = dir_index;
                file->both_directory_info.create_time  = name->dos.create_time;
                file->both_directory_info.access_time  = name->dos.access_time;
                file->both_directory_info.write_time   = name->dos.write_time;
@@ -145,7 +145,7 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                return NT_STATUS_OK;
 
        case RAW_SEARCH_ID_FULL_DIRECTORY_INFO:
-               file->id_full_directory_info.file_index   = dir_index+1;
+               file->id_full_directory_info.file_index   = dir_index;
                file->id_full_directory_info.create_time  = name->dos.create_time;
                file->id_full_directory_info.access_time  = name->dos.access_time;
                file->id_full_directory_info.write_time   = name->dos.write_time;
@@ -159,7 +159,7 @@ static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
                return NT_STATUS_OK;
 
        case RAW_SEARCH_ID_BOTH_DIRECTORY_INFO:
-               file->id_both_directory_info.file_index   = dir_index+1;
+               file->id_both_directory_info.file_index   = dir_index;
                file->id_both_directory_info.create_time  = name->dos.create_time;
                file->id_both_directory_info.access_time  = name->dos.access_time;
                file->id_both_directory_info.write_time   = name->dos.write_time;
@@ -192,22 +192,32 @@ static NTSTATUS pvfs_search_fill(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx,
                                 void *search_private, 
                                 BOOL (*callback)(void *, union smb_search_data *))
 {
-       int i;
        struct pvfs_dir *dir = search->dir;
        NTSTATUS status;
 
        *reply_count = 0;
 
-       for (i = search->current_index; i < dir->count;i++) {
+       if (max_count == 0) {
+               max_count = 1;
+       }
+
+       while ((*reply_count) < max_count) {
                union smb_search_data *file;
+               const char *name;
+
+               name = pvfs_list_next(dir, search->current_index);
+               if (name == NULL) break;
+
+               search->current_index++;
 
                file = talloc_p(mem_ctx, union smb_search_data);
                if (!file) {
                        return NT_STATUS_NO_MEMORY;
                }
 
-               status = fill_search_info(pvfs, level, dir->unix_path, dir->names[i], 
-                                         search, i, file);
+               status = fill_search_info(pvfs, level, 
+                                         pvfs_list_unix_path(dir), name, 
+                                         search, search->current_index, file);
                if (!NT_STATUS_IS_OK(status)) {
                        talloc_free(file);
                        continue;
@@ -215,18 +225,14 @@ static NTSTATUS pvfs_search_fill(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx,
 
                if (!callback(search_private, file)) {
                        talloc_free(file);
+                       search->current_index--;
                        break;
                }
+
                (*reply_count)++;
                talloc_free(file);
-
-               /* note that this deliberately allows a reply_count of
-                  1 for a max_count of 0. w2k3 allows this too. */
-               if (*reply_count >= max_count) break;
        }
 
-       search->current_index = i;
-
        return NT_STATUS_OK;
 }
 
@@ -275,7 +281,7 @@ static NTSTATUS pvfs_search_first_old(struct ntvfs_module_context *ntvfs,
        }
 
        /* do the actual directory listing */
-       status = pvfs_list(pvfs, name, dir);
+       status = pvfs_list_start(pvfs, name, dir);
        if (!NT_STATUS_IS_OK(status)) {
                return status;
        }
@@ -406,7 +412,7 @@ NTSTATUS pvfs_search_first(struct ntvfs_module_context *ntvfs,
        }
 
        /* do the actual directory listing */
-       status = pvfs_list(pvfs, name, dir);
+       status = pvfs_list_start(pvfs, name, dir);
        if (!NT_STATUS_IS_OK(status)) {
                return status;
        }
@@ -438,7 +444,7 @@ NTSTATUS pvfs_search_first(struct ntvfs_module_context *ntvfs,
 
        io->t2ffirst.out.count = reply_count;
        io->t2ffirst.out.handle = search->handle;
-       io->t2ffirst.out.end_of_search = (search->current_index == dir->count) ? 1 : 0;
+       io->t2ffirst.out.end_of_search = pvfs_list_eos(dir, search->current_index) ? 1 : 0;
 
        /* work out if we are going to keep the search state
           and allow for a search continue */
@@ -465,7 +471,6 @@ NTSTATUS pvfs_search_next(struct ntvfs_module_context *ntvfs,
        uint_t reply_count;
        uint16_t handle;
        NTSTATUS status;
-       int i;
 
        if (io->generic.level >= RAW_SEARCH_SEARCH) {
                return pvfs_search_next_old(ntvfs, req, io, search_private, callback);
@@ -483,28 +488,14 @@ NTSTATUS pvfs_search_next(struct ntvfs_module_context *ntvfs,
 
        /* work out what type of continuation is being used */
        if (io->t2fnext.in.last_name && *io->t2fnext.in.last_name) {
-               /* look backwards first */
-               for (i=search->current_index; i > 0; i--) {
-                       if (strcmp(io->t2fnext.in.last_name, dir->names[i-1]) == 0) {
-                               search->current_index = i;
-                               goto found;
-                       }
-               }
-
-               /* then look forwards */
-               for (i=search->current_index+1; i <= dir->count; i++) {
-                       if (strcmp(io->t2fnext.in.last_name, dir->names[i-1]) == 0) {
-                               search->current_index = i;
-                               goto found;
-                       }
-               }
+               search->current_index = pvfs_list_seek(dir, io->t2fnext.in.last_name, 
+                                                      search->current_index);
        } else if (io->t2fnext.in.flags & FLAG_TRANS2_FIND_CONTINUE) {
                /* plain continue - nothing to do */
        } else {
                search->current_index = io->t2fnext.in.resume_key;
        }
 
-found: 
        status = pvfs_search_fill(pvfs, req, io->t2fnext.in.max_count, search, io->generic.level,
                                  &reply_count, search_private, callback);
        if (!NT_STATUS_IS_OK(status)) {
@@ -517,7 +508,7 @@ found:
        }
 
        io->t2fnext.out.count = reply_count;
-       io->t2fnext.out.end_of_search = (search->current_index == dir->count) ? 1 : 0;
+       io->t2fnext.out.end_of_search = pvfs_list_eos(dir, search->current_index) ? 1 : 0;
 
        /* work out if we are going to keep the search state */
        if ((io->t2fnext.in.flags & FLAG_TRANS2_FIND_CLOSE) ||
index 432481a88a158f1fefa66013e54e9b5e90b54417..74614d194a6d099706bec51d20ac901b04263c99 100644 (file)
@@ -81,6 +81,7 @@ NTSTATUS pvfs_unlink(struct ntvfs_module_context *ntvfs,
        NTSTATUS status;
        uint32_t i, total_deleted=0;
        struct pvfs_filename *name;
+       const char *fname;
 
        /* resolve the cifs name to a posix name */
        status = pvfs_resolve_name(pvfs, req, unl->in.pattern, 0, &name);
@@ -103,36 +104,34 @@ NTSTATUS pvfs_unlink(struct ntvfs_module_context *ntvfs,
        }
 
        /* get list of matching files */
-       status = pvfs_list(pvfs, name, dir);
+       status = pvfs_list_start(pvfs, name, dir);
        if (!NT_STATUS_IS_OK(status)) {
                return status;
        }
 
-       if (dir->count == 0) {
-               return NT_STATUS_NO_SUCH_FILE;
-       }
-
-       for (i=0;i<dir->count;i++) {
+       status = NT_STATUS_NO_SUCH_FILE;
 
+       for (i=0; 
+            (fname = pvfs_list_next(dir, i));
+             i++) {
                /* this seems to be a special case */
                if ((unl->in.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
-                   (strcmp(dir->names[i], ".") == 0 ||
-                   strcmp(dir->names[i], "..") == 0)) {
+                   (strcmp(fname, ".") == 0 ||
+                    strcmp(fname, "..") == 0)) {
                        return NT_STATUS_OBJECT_NAME_INVALID;
                }
 
-               status = pvfs_unlink_one(pvfs, req, dir->unix_path, 
-                                        dir->names[i], unl->in.attrib);
+               status = pvfs_unlink_one(pvfs, req, dir->unix_path, fname, unl->in.attrib);
                if (NT_STATUS_IS_OK(status)) {
                        total_deleted++;
                }
        }
 
-       if (total_deleted == 0) {
-               return status;
+       if (total_deleted > 0) {
+               status = NT_STATUS_OK;
        }
 
-       return NT_STATUS_OK;
+       return status;
 }