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The API documentation (notmuch.h) states that the parameter may be NULL, but the implementation only checked the current element, potentially dereferencing a NULL pointer in the process. Signed-off-by: Sascha Silbe <sascha-pgp@silbe.org>
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/* filenames.c - Iterator for a list of filenames
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*
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* Copyright © 2010 Intel Corporation
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://www.gnu.org/licenses/ .
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*
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* Author: Carl Worth <cworth@cworth.org>
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*/
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#include "notmuch-private.h"
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struct _notmuch_filenames {
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notmuch_string_node_t *iterator;
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};
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/* The notmuch_filenames_t iterates over a notmuch_string_list_t of
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* file names */
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notmuch_filenames_t *
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_notmuch_filenames_create (const void *ctx,
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notmuch_string_list_t *list)
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{
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notmuch_filenames_t *filenames;
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filenames = talloc (ctx, notmuch_filenames_t);
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if (unlikely (filenames == NULL))
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return NULL;
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filenames->iterator = list->head;
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(void) talloc_reference (filenames, list);
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return filenames;
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}
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notmuch_bool_t
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notmuch_filenames_valid (notmuch_filenames_t *filenames)
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{
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if (filenames == NULL)
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return FALSE;
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return (filenames->iterator != NULL);
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}
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const char *
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notmuch_filenames_get (notmuch_filenames_t *filenames)
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{
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if ((filenames == NULL) || (filenames->iterator == NULL))
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return NULL;
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return filenames->iterator->string;
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}
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void
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notmuch_filenames_move_to_next (notmuch_filenames_t *filenames)
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{
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if ((filenames == NULL) || (filenames->iterator == NULL))
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return;
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filenames->iterator = filenames->iterator->next;
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}
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void
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notmuch_filenames_destroy (notmuch_filenames_t *filenames)
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{
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talloc_free (filenames);
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}
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