131 lines
3.3 KiB
C
131 lines
3.3 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2009 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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/* is_file_identical.c
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* returns TRUE if the two files are identical,
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* returns FALSE if 1. either one of the files specified
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* doesn't exist, or
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* 2. they are different files.
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*/
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#include "mdef.h"
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#include "gtm_stdlib.h"
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#include "gtm_stat.h"
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#include "gdsroot.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsblk.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "eintr_wrappers.h"
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#include "copy.h"
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#include "is_file_identical.h"
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bool is_gdid_file_identical(gd_id_ptr_t fid, char *filename, int4 filelen)
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{
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struct stat stat_buf;
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int stat_res;
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assert(0 == filename[filelen]);
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STAT_FILE(filename, &stat_buf, stat_res);
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return is_gdid_stat_identical(fid, &stat_buf);
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}
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bool is_file_identical(char *filename1, char *filename2)
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{
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struct stat st1, st2;
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int stat_res;
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int rv = FALSE;
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STAT_FILE(filename1, &st1, stat_res);
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if (0 == stat_res)
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{
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STAT_FILE(filename2, &st2, stat_res);
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if (0 == stat_res)
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#if defined(__osf__) || defined(_AIX)
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if ((st1.st_dev == st2.st_dev) && (st1.st_ino == st2.st_ino) && (
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#ifdef _AIX
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(FS_REMOTE == st1.st_flag || FS_REMOTE == st2.st_flag) ? TRUE :
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#endif
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st1.st_gen == st2.st_gen))
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#else
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if ((st1.st_dev == st2.st_dev) && (st1.st_ino == st2.st_ino))
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#endif
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rv = TRUE;
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}
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return rv;
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}
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bool is_gdid_identical(gd_id_ptr_t fid1, gd_id_ptr_t fid2)
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{
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bool rv = FALSE;
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#if defined(__osf__) || defined(_AIX)
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if ((fid1->inode == fid2->inode) && (fid1->device == fid2->device) && (fid1->st_gen == fid2->st_gen))
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rv = TRUE;
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#else
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if ((fid1->inode == fid2->inode) && (fid1->device == fid2->device))
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rv = TRUE;
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#endif
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return rv;
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}
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bool is_gdid_stat_identical(gd_id_ptr_t fid, struct stat *stat_buf)
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{
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#if defined(__osf__) || defined(_AIX)
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assert(SIZEOF(fid->st_gen) >= SIZEOF(stat_buf->st_gen));
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if (fid->device == stat_buf->st_dev && fid->inode == stat_buf->st_ino && (
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#ifdef _AIX
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FS_REMOTE == stat_buf->st_flag ? TRUE :
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#endif
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fid->st_gen == stat_buf->st_gen))
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#else
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if (fid->device == stat_buf->st_dev && fid->inode == stat_buf->st_ino)
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#endif
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return TRUE;
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else
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return FALSE;
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}
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void set_gdid_from_stat(gd_id_ptr_t fid, struct stat *stat_buf)
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{
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assert(SIZEOF(gd_id) <= SIZEOF(gds_file_id));
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fid->inode = stat_buf->st_ino;
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fid->device = stat_buf->st_dev;
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#if defined(__osf__)
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fid->st_gen = stat_buf->st_gen;
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#elif defined(_AIX)
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if (FS_REMOTE != stat_buf->st_flag)
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fid->st_gen = stat_buf->st_gen;
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else
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fid->st_gen = 0; /* AIX has garbage for NFS files */
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#endif
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}
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/*
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* Here we create a unique_id for a file.
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*/
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boolean_t filename_to_id(gd_id_ptr_t fid, char *filename)
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{
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struct stat filestat;
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int stat_res;
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STAT_FILE(filename, &filestat, stat_res);
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if (stat_res)
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return FALSE;
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set_gdid_from_stat(fid, &filestat);
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return TRUE;
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}
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