diff options
Diffstat (limited to 'usr.bin/ar/read.c')
| -rw-r--r-- | usr.bin/ar/read.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/usr.bin/ar/read.c b/usr.bin/ar/read.c new file mode 100644 index 0000000..a9e2ed1 --- /dev/null +++ b/usr.bin/ar/read.c @@ -0,0 +1,204 @@ +/*- + * Copyright (c) 2007 Kai Wang + * Copyright (c) 2007 Tim Kientzle + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer + * in this position and unchanged. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/queue.h> +#include <sys/stat.h> +#include <archive.h> +#include <archive_entry.h> +#include <errno.h> +#include <libgen.h> +#include <stdio.h> +#include <string.h> +#include <sysexits.h> + +#include "ar.h" + +static void read_archive(struct bsdar *bsdar, char mode); + +void +ar_mode_p(struct bsdar *bsdar) +{ + + read_archive(bsdar, 'p'); +} + +void +ar_mode_t(struct bsdar *bsdar) +{ + + read_archive(bsdar, 't'); +} + +void +ar_mode_x(struct bsdar *bsdar) +{ + + read_archive(bsdar, 'x'); +} + +/* + * Handle read modes: 'x', 't' and 'p'. + */ +static void +read_archive(struct bsdar *bsdar, char mode) +{ + struct archive *a; + struct archive_entry *entry; + struct stat sb; + struct tm *tp; + const char *bname; + const char *name; + mode_t md; + size_t size; + time_t mtime; + uid_t uid; + gid_t gid; + char **av; + char buf[25]; + char find; + int flags, r, i; + + if ((a = archive_read_new()) == NULL) + bsdar_errc(bsdar, EX_SOFTWARE, 0, "archive_read_new failed"); + archive_read_support_compression_all(a); + archive_read_support_format_all(a); + AC(archive_read_open_file(a, bsdar->filename, DEF_BLKSZ)); + + for (;;) { + r = archive_read_next_header(a, &entry); + if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY || + r == ARCHIVE_FATAL) + bsdar_warnc(bsdar, 0, "%s", archive_error_string(a)); + if (r == ARCHIVE_EOF || r == ARCHIVE_FATAL) + break; + if (r == ARCHIVE_RETRY) { + bsdar_warnc(bsdar, 0, "Retrying..."); + continue; + } + + name = archive_entry_pathname(entry); + + /* Skip pseudo members. */ + if (strcmp(name, "/") == 0 || strcmp(name, "//") == 0) + continue; + + if (bsdar->argc > 0) { + find = 0; + for(i = 0; i < bsdar->argc; i++) { + av = &bsdar->argv[i]; + if (*av == NULL) + continue; + if ((bname = basename(*av)) == NULL) + bsdar_errc(bsdar, EX_SOFTWARE, errno, + "basename failed"); + if (strcmp(bname, name) != 0) + continue; + + *av = NULL; + find = 1; + break; + } + if (!find) + continue; + } + + if (mode == 't') { + if (bsdar->options & AR_V) { + md = archive_entry_mode(entry); + uid = archive_entry_uid(entry); + gid = archive_entry_gid(entry); + size = archive_entry_size(entry); + mtime = archive_entry_mtime(entry); + (void)strmode(md, buf); + (void)fprintf(stdout, "%s %6d/%-6d %8ju ", + buf + 1, uid, gid, (uintmax_t)size); + tp = localtime(&mtime); + (void)strftime(buf, sizeof(buf), + "%b %e %H:%M %Y", tp); + (void)fprintf(stdout, "%s %s", buf, name); + } else + (void)fprintf(stdout, "%s", name); + r = archive_read_data_skip(a); + if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY || + r == ARCHIVE_FATAL) { + (void)fprintf(stdout, "\n"); + bsdar_warnc(bsdar, 0, "%s", + archive_error_string(a)); + } + + if (r == ARCHIVE_FATAL) + break; + + (void)fprintf(stdout, "\n"); + } else { + /* mode == 'x' || mode = 'p' */ + if (mode == 'p') { + if (bsdar->options & AR_V) { + (void)fprintf(stdout, "\n<%s>\n\n", + name); + fflush(stdout); + } + r = archive_read_data_into_fd(a, 1); + } else { + /* mode == 'x' */ + if (stat(name, &sb) != 0) { + if (errno != ENOENT) { + bsdar_warnc(bsdar, 0, + "stat %s failed", + bsdar->filename); + continue; + } + } else { + /* stat success, file exist */ + if (bsdar->options & AR_CC) + continue; + if (bsdar->options & AR_U && + archive_entry_mtime(entry) <= + sb.st_mtime) + continue; + } + + if (bsdar->options & AR_V) + (void)fprintf(stdout, "x - %s\n", name); + flags = 0; + if (bsdar->options & AR_O) + flags |= ARCHIVE_EXTRACT_TIME; + + r = archive_read_extract(a, entry, flags); + } + + if (r) + bsdar_warnc(bsdar, 0, "%s", + archive_error_string(a)); + } + } + AC(archive_read_close(a)); + AC(archive_read_finish(a)); +} |
