1/*- 2 * Copyright (c) 2003-2007 Tim Kientzle 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "archive_platform.h" 27__FBSDID("$FreeBSD$"); 28 29#ifdef HAVE_SYS_STAT_H 30#include <sys/stat.h> 31#endif 32#ifdef HAVE_STDLIB_H 33#include <stdlib.h> 34#endif 35 36#include "archive_entry.h" 37#include "archive_entry_private.h" 38 39const struct stat * 40archive_entry_stat(struct archive_entry *entry) 41{ 42 struct stat *st; 43 if (entry->stat == NULL) { 44 entry->stat = calloc(1, sizeof(*st)); 45 if (entry->stat == NULL) 46 return (NULL); 47 entry->stat_valid = 0; 48 } 49 50 /* 51 * If none of the underlying fields have been changed, we 52 * don't need to regenerate. In theory, we could use a bitmap 53 * here to flag only those items that have changed, but the 54 * extra complexity probably isn't worth it. It will be very 55 * rare for anyone to change just one field then request a new 56 * stat structure. 57 */ 58 if (entry->stat_valid) 59 return (entry->stat); 60 61 st = entry->stat; 62 /* 63 * Use the public interfaces to extract items, so that 64 * the appropriate conversions get invoked. 65 */ 66 st->st_atime = archive_entry_atime(entry); 67#if HAVE_STRUCT_STAT_ST_BIRTHTIME 68 st->st_birthtime = archive_entry_birthtime(entry); 69#endif 70 st->st_ctime = archive_entry_ctime(entry); 71 st->st_mtime = archive_entry_mtime(entry); 72 st->st_dev = archive_entry_dev(entry); 73 st->st_gid = (gid_t)archive_entry_gid(entry); 74 st->st_uid = (uid_t)archive_entry_uid(entry); 75 st->st_ino = (ino_t)archive_entry_ino64(entry); 76 st->st_nlink = archive_entry_nlink(entry); 77 st->st_rdev = archive_entry_rdev(entry); 78 st->st_size = (off_t)archive_entry_size(entry); 79 st->st_mode = archive_entry_mode(entry); 80 81 /* 82 * On systems that support high-res timestamps, copy that 83 * information into struct stat. 84 */ 85#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC 86 st->st_atimespec.tv_nsec = archive_entry_atime_nsec(entry); 87 st->st_ctimespec.tv_nsec = archive_entry_ctime_nsec(entry); 88 st->st_mtimespec.tv_nsec = archive_entry_mtime_nsec(entry); 89#elif HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 90 st->st_atim.tv_nsec = archive_entry_atime_nsec(entry); 91 st->st_ctim.tv_nsec = archive_entry_ctime_nsec(entry); 92 st->st_mtim.tv_nsec = archive_entry_mtime_nsec(entry); 93#elif HAVE_STRUCT_STAT_ST_MTIME_N 94 st->st_atime_n = archive_entry_atime_nsec(entry); 95 st->st_ctime_n = archive_entry_ctime_nsec(entry); 96 st->st_mtime_n = archive_entry_mtime_nsec(entry); 97#elif HAVE_STRUCT_STAT_ST_UMTIME 98 st->st_uatime = archive_entry_atime_nsec(entry) / 1000; 99 st->st_uctime = archive_entry_ctime_nsec(entry) / 1000; 100 st->st_umtime = archive_entry_mtime_nsec(entry) / 1000; 101#elif HAVE_STRUCT_STAT_ST_MTIME_USEC 102 st->st_atime_usec = archive_entry_atime_nsec(entry) / 1000; 103 st->st_ctime_usec = archive_entry_ctime_nsec(entry) / 1000; 104 st->st_mtime_usec = archive_entry_mtime_nsec(entry) / 1000; 105#endif 106#if HAVE_STRUCT_STAT_ST_BIRTHTIMESPEC_TV_NSEC 107 st->st_birthtimespec.tv_nsec = archive_entry_birthtime_nsec(entry); 108#endif 109 110 /* 111 * TODO: On Linux, store 32 or 64 here depending on whether 112 * the cached stat structure is a stat32 or a stat64. This 113 * will allow us to support both variants interchangeably. 114 */ 115 entry->stat_valid = 1; 116 117 return (st); 118} 119