186 lines
5.2 KiB
C
186 lines
5.2 KiB
C
/* -*- C -*-
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* Copyright (c) 1998-2006 Motoyuki Kasahara
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "ebzip.h"
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#include "samefile.h"
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#include "yesno.h"
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/*
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* Tricks for gettext.
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*/
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#ifdef ENABLE_NLS
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#define _(string) gettext(string)
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#ifdef gettext_noop
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#define N_(string) gettext_noop(string)
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#else
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#define N_(string) (string)
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#endif
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#else
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#define _(string) (string)
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#define N_(string) (string)
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#endif
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/*
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* Unexported functions.
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*/
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static int ebzip_zipinfo_file_internal(const char *in_file_name,
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Zio_Code in_zio_code, int index_page);
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/*
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* Output status of a file `in_file_name'.
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* For START file, use ebzip_zipinfo_start_file() instead.
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* If it succeeds, 0 is returned. Otherwise -1 is returned.
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*/
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int
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ebzip_zipinfo_file(const char *in_file_name, Zio_Code in_zio_code)
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{
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return ebzip_zipinfo_file_internal(in_file_name, in_zio_code, 0);
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}
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/*
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* Output status of START file `in_file_name'.
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* If it succeeds, 0 is returned. Otherwise -1 is returned.
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*/
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int
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ebzip_zipinfo_start_file(const char *in_file_name, Zio_Code in_zio_code,
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int index_page)
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{
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return ebzip_zipinfo_file_internal(in_file_name, in_zio_code, index_page);
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}
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/*
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* Output status of a file `file_name'.
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* If it succeeds, 0 is returned. Otherwise -1 is returned.
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*/
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static int
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ebzip_zipinfo_file_internal(const char *in_file_name, Zio_Code in_zio_code,
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int index_page)
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{
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Zio in_zio;
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int in_file = -1;
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struct stat in_status;
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/*
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* Output file name information.
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*/
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printf("==> %s <==\n", in_file_name);
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fflush(stdout);
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/*
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* Open the file.
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*/
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zio_initialize(&in_zio);
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if (stat(in_file_name, &in_status) == 0 && S_ISREG(in_status.st_mode))
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in_file = zio_open(&in_zio, in_file_name, in_zio_code);
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if (in_file < 0) {
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fprintf(stderr, _("%s: failed to open the file: %s\n"),
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invoked_name, in_file_name);
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goto failed;
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}
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if (in_zio_code == ZIO_SEBXA) {
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off_t index_location;
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off_t index_base;
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off_t zio_start_location;
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off_t zio_end_location;
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if (get_sebxa_indexes(in_file_name, index_page, &index_location,
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&index_base, &zio_start_location, &zio_end_location) < 0) {
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goto failed;
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}
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zio_set_sebxa_mode(&in_zio, index_location, index_base,
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zio_start_location, zio_end_location);
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}
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/*
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* Close the file.
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*/
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zio_close(&in_zio);
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/*
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* Output information.
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*/
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if (in_zio.code == ZIO_PLAIN) {
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#if defined(PRINTF_LL_MODIFIER)
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printf(_("%llu bytes (not compressed)\n"),
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(unsigned long long) in_status.st_size);
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#elif defined(PRINTF_I64_MODIFIER)
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printf(_("%I64u bytes (not compressed)\n"),
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(unsigned __int64) in_status.st_size);
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#else
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printf(_("%lu bytes (not compressed)\n"),
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(unsigned long) in_status.st_size);
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#endif
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} else {
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#if defined(PRINTF_LL_MODIFIER)
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printf(_("%llu -> %llu bytes "),
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(unsigned long long) in_zio.file_size,
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(unsigned long long) in_status.st_size);
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#elif defined(PRINTF_I64_MODIFIER)
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printf(_("%I64u -> %I64u bytes "),
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(unsigned __int64) in_zio.file_size,
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(unsigned __int64) in_status.st_size);
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#else
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printf(_("%lu -> %lu bytes "),
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(unsigned long) in_zio.file_size,
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(unsigned long) in_status.st_size);
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#endif
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if (in_zio.file_size == 0)
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fputs(_("(empty original file, "), stdout);
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else {
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printf("(%4.1f%%, ", (double)in_status.st_size * 100.0
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/ (double)in_zio.file_size);
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}
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if (in_zio.code == ZIO_EBZIP1)
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printf(_("ebzip level %d compression)\n"), in_zio.zip_level);
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else if (in_zio.code == ZIO_SEBXA)
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printf(_("S-EBXA compression)\n"));
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else
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printf(_("EPWING compression)\n"));
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}
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fputc('\n', stdout);
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fflush(stdout);
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return 0;
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/*
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* An error occurs...
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*/
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failed:
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if (0 <= in_file)
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close(in_file);
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fputc('\n', stderr);
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fflush(stderr);
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return -1;
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}
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