/* Unix SMB/CIFS implementation. file_id structure handling Copyright (C) Andrew Tridgell 2007 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" /* return a file_id which gives a unique ID for a file given the device and inode numbers */ struct file_id file_id_create_dev(SMB_DEV_T dev, SMB_INO_T inode) { struct file_id key; /* the ZERO_STRUCT ensures padding doesn't break using the key as a * blob */ ZERO_STRUCT(key); key.devid = dev; key.inode = inode; return key; } /* generate a file_id from a stat structure */ struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf) { return SMB_VFS_FILE_ID_CREATE(conn, sbuf->st_dev, sbuf->st_ino); } /* return True if two file_id structures are equal */ BOOL file_id_equal(const struct file_id *id1, const struct file_id *id2) { return id1->inode == id2->inode && id1->devid == id2->devid; } /* a static string for a file_id structure */ const char *file_id_string_tos(const struct file_id *id) { return talloc_asprintf(talloc_tos(), "%llx:%llx", (unsigned long long)id->devid, (unsigned long long)id->inode); } /* push a 16 byte version of a file id into a buffer */ void push_file_id_16(char *buf, const struct file_id *id) { SIVAL(buf, 0, id->devid&0xFFFFFFFF); SIVAL(buf, 4, id->devid>>32); SIVAL(buf, 8, id->inode&0xFFFFFFFF); SIVAL(buf, 12, id->inode>>32); } /* pul a 16 byte version of a file id from a buffer */ void pull_file_id_16(char *buf, struct file_id *id) { ZERO_STRUCTP(id); id->devid = IVAL(buf, 0); id->devid |= ((uint64_t)IVAL(buf,4))<<32; id->inode = IVAL(buf, 8); id->inode |= ((uint64_t)IVAL(buf,12))<<32; }