From 8daa83a594a2e98f39d764422bfbdbc62c9efd44 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:20:00 +0200 Subject: Adding upstream version 2:4.20.0+dfsg. Signed-off-by: Daniel Baumann --- source3/lib/file_id.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 source3/lib/file_id.c (limited to 'source3/lib/file_id.c') diff --git a/source3/lib/file_id.c b/source3/lib/file_id.c new file mode 100644 index 0000000..545437a --- /dev/null +++ b/source3/lib/file_id.c @@ -0,0 +1,82 @@ +/* + 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 . +*/ + +#include "includes.h" +#include "lib/file_id.h" + +/* + 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 && + id1->extid == id2->extid; +} + +char *file_id_str_buf(struct file_id fid, struct file_id_buf *dst) +{ + snprintf(dst->buf, + sizeof(dst->buf), + "%"PRIu64":%"PRIu64":%"PRIu64, + fid.devid, + fid.inode, + fid.extid); + return dst->buf; +} + +/* + push a 16 byte version of a file id into a buffer. This ignores the extid + and is needed when dev/inodes are stored in persistent storage (tdbs). + */ +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); +} + +/* + push a 24 byte version of a file id into a buffer + */ +void push_file_id_24(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); + SIVAL(buf, 16, id->extid&0xFFFFFFFF); + SIVAL(buf, 20, id->extid>>32); +} + +/* + pull a 24 byte version of a file id from a buffer + */ +void pull_file_id_24(const 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; + id->extid = IVAL(buf, 16); + id->extid |= ((uint64_t)IVAL(buf,20))<<32; +} -- cgit v1.2.3