read.c revision 201166
1176434Skaiw/*- 2176434Skaiw * Copyright (c) 2007 Kai Wang 3176434Skaiw * Copyright (c) 2007 Tim Kientzle 4176434Skaiw * All rights reserved. 5176434Skaiw * 6176434Skaiw * Redistribution and use in source and binary forms, with or without 7176434Skaiw * modification, are permitted provided that the following conditions 8176434Skaiw * are met: 9176434Skaiw * 1. Redistributions of source code must retain the above copyright 10176434Skaiw * notice, this list of conditions and the following disclaimer 11176434Skaiw * in this position and unchanged. 12176434Skaiw * 2. Redistributions in binary form must reproduce the above copyright 13176434Skaiw * notice, this list of conditions and the following disclaimer in the 14176434Skaiw * documentation and/or other materials provided with the distribution. 15176434Skaiw * 16176434Skaiw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 17176434Skaiw * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18176434Skaiw * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19176434Skaiw * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 20176434Skaiw * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21176434Skaiw * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22176434Skaiw * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23176434Skaiw * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24176434Skaiw * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25176434Skaiw * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26176434Skaiw */ 27176434Skaiw 28176434Skaiw#include <sys/cdefs.h> 29176434Skaiw__FBSDID("$FreeBSD: head/usr.bin/ar/read.c 201166 2009-12-29 05:58:40Z kientzle $"); 30176434Skaiw 31176434Skaiw#include <sys/queue.h> 32176434Skaiw#include <sys/stat.h> 33176434Skaiw#include <archive.h> 34176434Skaiw#include <archive_entry.h> 35176434Skaiw#include <errno.h> 36176434Skaiw#include <libgen.h> 37176434Skaiw#include <stdio.h> 38176434Skaiw#include <string.h> 39176434Skaiw#include <sysexits.h> 40176434Skaiw 41176434Skaiw#include "ar.h" 42176434Skaiw 43176434Skaiwstatic void read_archive(struct bsdar *bsdar, char mode); 44176434Skaiw 45176434Skaiwvoid 46176434Skaiwar_mode_p(struct bsdar *bsdar) 47176434Skaiw{ 48176434Skaiw 49176434Skaiw read_archive(bsdar, 'p'); 50176434Skaiw} 51176434Skaiw 52176434Skaiwvoid 53176434Skaiwar_mode_t(struct bsdar *bsdar) 54176434Skaiw{ 55176434Skaiw 56176434Skaiw read_archive(bsdar, 't'); 57176434Skaiw} 58176434Skaiw 59176434Skaiwvoid 60176434Skaiwar_mode_x(struct bsdar *bsdar) 61176434Skaiw{ 62176434Skaiw 63176434Skaiw read_archive(bsdar, 'x'); 64176434Skaiw} 65176434Skaiw 66176434Skaiw/* 67176434Skaiw * Handle read modes: 'x', 't' and 'p'. 68176434Skaiw */ 69176434Skaiwstatic void 70176434Skaiwread_archive(struct bsdar *bsdar, char mode) 71176434Skaiw{ 72176434Skaiw struct archive *a; 73176434Skaiw struct archive_entry *entry; 74176434Skaiw struct stat sb; 75176434Skaiw struct tm *tp; 76176434Skaiw const char *bname; 77176434Skaiw const char *name; 78176434Skaiw mode_t md; 79176434Skaiw size_t size; 80176434Skaiw time_t mtime; 81176434Skaiw uid_t uid; 82176434Skaiw gid_t gid; 83176434Skaiw char **av; 84176434Skaiw char buf[25]; 85176434Skaiw char find; 86176434Skaiw int flags, r, i; 87176434Skaiw 88176434Skaiw if ((a = archive_read_new()) == NULL) 89176434Skaiw bsdar_errc(bsdar, EX_SOFTWARE, 0, "archive_read_new failed"); 90176434Skaiw archive_read_support_compression_all(a); 91201166Skientzle archive_read_support_format_ar(a); 92176434Skaiw AC(archive_read_open_file(a, bsdar->filename, DEF_BLKSZ)); 93176434Skaiw 94176434Skaiw for (;;) { 95176434Skaiw r = archive_read_next_header(a, &entry); 96176434Skaiw if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY || 97176434Skaiw r == ARCHIVE_FATAL) 98176434Skaiw bsdar_warnc(bsdar, 0, "%s", archive_error_string(a)); 99176434Skaiw if (r == ARCHIVE_EOF || r == ARCHIVE_FATAL) 100176434Skaiw break; 101176434Skaiw if (r == ARCHIVE_RETRY) { 102176434Skaiw bsdar_warnc(bsdar, 0, "Retrying..."); 103176434Skaiw continue; 104176434Skaiw } 105176434Skaiw 106176434Skaiw name = archive_entry_pathname(entry); 107176434Skaiw 108176434Skaiw /* Skip pseudo members. */ 109176434Skaiw if (strcmp(name, "/") == 0 || strcmp(name, "//") == 0) 110176434Skaiw continue; 111176434Skaiw 112176434Skaiw if (bsdar->argc > 0) { 113176434Skaiw find = 0; 114176434Skaiw for(i = 0; i < bsdar->argc; i++) { 115176434Skaiw av = &bsdar->argv[i]; 116176434Skaiw if (*av == NULL) 117176434Skaiw continue; 118176434Skaiw if ((bname = basename(*av)) == NULL) 119176434Skaiw bsdar_errc(bsdar, EX_SOFTWARE, errno, 120176434Skaiw "basename failed"); 121176434Skaiw if (strcmp(bname, name) != 0) 122176434Skaiw continue; 123176434Skaiw 124176434Skaiw *av = NULL; 125176434Skaiw find = 1; 126176434Skaiw break; 127176434Skaiw } 128176434Skaiw if (!find) 129176434Skaiw continue; 130176434Skaiw } 131176434Skaiw 132176434Skaiw if (mode == 't') { 133176434Skaiw if (bsdar->options & AR_V) { 134176434Skaiw md = archive_entry_mode(entry); 135176434Skaiw uid = archive_entry_uid(entry); 136176434Skaiw gid = archive_entry_gid(entry); 137176434Skaiw size = archive_entry_size(entry); 138176434Skaiw mtime = archive_entry_mtime(entry); 139176434Skaiw (void)strmode(md, buf); 140176434Skaiw (void)fprintf(stdout, "%s %6d/%-6d %8ju ", 141176434Skaiw buf + 1, uid, gid, (uintmax_t)size); 142176434Skaiw tp = localtime(&mtime); 143176434Skaiw (void)strftime(buf, sizeof(buf), 144176434Skaiw "%b %e %H:%M %Y", tp); 145176434Skaiw (void)fprintf(stdout, "%s %s", buf, name); 146176434Skaiw } else 147176434Skaiw (void)fprintf(stdout, "%s", name); 148176434Skaiw r = archive_read_data_skip(a); 149176434Skaiw if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY || 150176434Skaiw r == ARCHIVE_FATAL) { 151176434Skaiw (void)fprintf(stdout, "\n"); 152176434Skaiw bsdar_warnc(bsdar, 0, "%s", 153176434Skaiw archive_error_string(a)); 154176434Skaiw } 155176434Skaiw 156176434Skaiw if (r == ARCHIVE_FATAL) 157176434Skaiw break; 158176434Skaiw 159176434Skaiw (void)fprintf(stdout, "\n"); 160176434Skaiw } else { 161176434Skaiw /* mode == 'x' || mode = 'p' */ 162176434Skaiw if (mode == 'p') { 163176434Skaiw if (bsdar->options & AR_V) { 164176434Skaiw (void)fprintf(stdout, "\n<%s>\n\n", 165176434Skaiw name); 166176434Skaiw fflush(stdout); 167176434Skaiw } 168176434Skaiw r = archive_read_data_into_fd(a, 1); 169176434Skaiw } else { 170176434Skaiw /* mode == 'x' */ 171176434Skaiw if (stat(name, &sb) != 0) { 172176434Skaiw if (errno != ENOENT) { 173176434Skaiw bsdar_warnc(bsdar, 0, 174176434Skaiw "stat %s failed", 175176434Skaiw bsdar->filename); 176176434Skaiw continue; 177176434Skaiw } 178176434Skaiw } else { 179176434Skaiw /* stat success, file exist */ 180176434Skaiw if (bsdar->options & AR_CC) 181176434Skaiw continue; 182176434Skaiw if (bsdar->options & AR_U && 183176434Skaiw archive_entry_mtime(entry) <= 184176434Skaiw sb.st_mtime) 185176434Skaiw continue; 186176434Skaiw } 187176434Skaiw 188176434Skaiw if (bsdar->options & AR_V) 189176434Skaiw (void)fprintf(stdout, "x - %s\n", name); 190176434Skaiw flags = 0; 191176434Skaiw if (bsdar->options & AR_O) 192176434Skaiw flags |= ARCHIVE_EXTRACT_TIME; 193176434Skaiw 194176434Skaiw r = archive_read_extract(a, entry, flags); 195176434Skaiw } 196176434Skaiw 197176434Skaiw if (r) 198176434Skaiw bsdar_warnc(bsdar, 0, "%s", 199176434Skaiw archive_error_string(a)); 200176434Skaiw } 201176434Skaiw } 202176434Skaiw AC(archive_read_close(a)); 203176434Skaiw AC(archive_read_finish(a)); 204176434Skaiw} 205