112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* Copyright (C) 2000 Helix Code, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public License
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* as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with the Gnome Library; see the file COPYING.LIB. If not,
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* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* index.c: high-level indexing ops */
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "ibex_internal.h"
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/* Index a file, given its name. (Replace any previously indexed contents
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* of this file with the new contents.)
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*/
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int
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ibex_index_file (ibex *ib, char *filename)
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{
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int fd;
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int status;
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struct stat st;
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fd = open (filename, O_RDONLY);
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if (fd < 0)
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return -1;
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if (fstat (fd, &st) == -1) {
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close (fd);
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return -1;
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}
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if (!S_ISREG (st.st_mode)) {
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close (fd);
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errno = EINVAL;
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return -1;
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}
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ibex_unindex (ib, filename);
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status = ibex_index_fd (ib, filename, fd, st.st_size);
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close (fd);
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return status;
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}
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/* Given a file descriptor and a name to refer to it by, index LEN
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* bytes of data from it.
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*/
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int
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ibex_index_fd (ibex *ib, char *name, int fd, size_t len)
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{
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char *buf;
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int off = 0, nread, status;
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buf = g_malloc (len);
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do {
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nread = read (fd, buf + off, len - off);
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if (nread == -1) {
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g_free (buf);
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return -1;
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}
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off += nread;
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} while (off != len);
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status = ibex_index_buffer (ib, name, buf, len, NULL);
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g_free (buf);
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return status;
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}
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void
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ibex_unindex (ibex *ib, char *name)
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{
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ibex_file *ibf;
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ibf = g_tree_lookup (ib->files, name);
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if (ibf) {
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ibf->index = -1;
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g_tree_remove (ib->files, name);
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g_ptr_array_add (ib->oldfiles, ibf);
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}
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}
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void
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ibex_rename (ibex *ib, char *oldname, char *newname)
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{
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ibex_file *ibf;
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ibf = g_tree_lookup (ib->files, oldname);
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if (ibf) {
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g_tree_remove (ib->files, oldname);
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g_free (ibf->name);
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ibf->name = g_strdup (newname);
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g_tree_insert (ib->files, ibf->name, ibf);
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}
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}
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