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30191d1a57
bugs in various places whilst doing this (places that assumed
BOOL == int). I also need to fix the Samba4 pidl generation
(next checkin).
Jeremy.
(This used to be commit f35a266b3c)
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
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Unix SMB/CIFS implementation.
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file_id structure handling
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Copyright (C) Andrew Tridgell 2007
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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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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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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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#include "includes.h"
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/*
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return a file_id which gives a unique ID for a file given the device and
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inode numbers
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*/
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struct file_id file_id_create_dev(SMB_DEV_T dev, SMB_INO_T inode)
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{
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struct file_id key;
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/* the ZERO_STRUCT ensures padding doesn't break using the key as a
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* blob */
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ZERO_STRUCT(key);
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key.devid = dev;
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key.inode = inode;
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return key;
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}
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/*
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generate a file_id from a stat structure
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*/
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struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
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{
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return SMB_VFS_FILE_ID_CREATE(conn, sbuf->st_dev, sbuf->st_ino);
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}
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/*
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return True if two file_id structures are equal
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*/
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bool file_id_equal(const struct file_id *id1, const struct file_id *id2)
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{
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return id1->inode == id2->inode && id1->devid == id2->devid;
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}
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/*
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a static string for a file_id structure
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*/
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const char *file_id_string_tos(const struct file_id *id)
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{
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char *result = talloc_asprintf(talloc_tos(), "%llx:%llx",
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(unsigned long long)id->devid,
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(unsigned long long)id->inode);
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SMB_ASSERT(result != NULL);
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return result;
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}
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/*
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push a 16 byte version of a file id into a buffer
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*/
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void push_file_id_16(char *buf, const struct file_id *id)
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{
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SIVAL(buf, 0, id->devid&0xFFFFFFFF);
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SIVAL(buf, 4, id->devid>>32);
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SIVAL(buf, 8, id->inode&0xFFFFFFFF);
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SIVAL(buf, 12, id->inode>>32);
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}
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/*
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pul a 16 byte version of a file id from a buffer
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*/
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void pull_file_id_16(char *buf, struct file_id *id)
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{
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ZERO_STRUCTP(id);
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id->devid = IVAL(buf, 0);
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id->devid |= ((uint64_t)IVAL(buf,4))<<32;
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id->inode = IVAL(buf, 8);
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id->inode |= ((uint64_t)IVAL(buf,12))<<32;
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}
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