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198 lines
6.1 KiB
C
198 lines
6.1 KiB
C
/* global.c - global variables and initial values for cpio.
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Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <sys/types.h>
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#include "cpiohdr.h"
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#include "dstring.h"
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#include "system.h"
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#include "extern.h"
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/* If TRUE, reset access times after reading files (-a). */
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int reset_time_flag = FALSE;
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/* Block size value, initially 512. -B sets to 5120. */
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int io_block_size = 512;
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/* The header format to recognize and produce. */
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enum archive_format archive_format = arf_unknown;
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/* If TRUE, create directories as needed. (-d with -i or -p) */
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int create_dir_flag = FALSE;
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/* If TRUE, interactively rename files. (-r) */
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int rename_flag = FALSE;
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/* If non-NULL, the name of a file that will be read to
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rename all of the files in the archive. --rename-batch-file. */
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char *rename_batch_file = NULL;
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/* If TRUE, print a table of contents of input. (-t) */
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int table_flag = FALSE;
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/* If TRUE, copy unconditionally (older replaces newer). (-u) */
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int unconditional_flag = FALSE;
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/* If TRUE, list the files processed, or ls -l style output with -t. (-v) */
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int verbose_flag = FALSE;
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/* If TRUE, print a . for each file processed. (-V) */
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int dot_flag = FALSE;
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/* If TRUE, link files whenever possible. Used with -p option. (-l) */
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int link_flag = FALSE;
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/* If TRUE, retain previous file modification time. (-m) */
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int retain_time_flag = FALSE;
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/* Set TRUE if crc_flag is TRUE and we are doing a cpio -i. Used
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by copy_files so it knows whether to compute the crc. */
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int crc_i_flag = FALSE;
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/* If TRUE, append to end of archive. (-A) */
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int append_flag = FALSE;
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/* If TRUE, swap bytes of each file during cpio -i. */
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int swap_bytes_flag = FALSE;
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/* If TRUE, swap halfwords of each file during cpio -i. */
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int swap_halfwords_flag = FALSE;
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/* If TRUE, we are swapping halfwords on the current file. */
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int swapping_halfwords = FALSE;
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/* If TRUE, we are swapping bytes on the current file. */
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int swapping_bytes = FALSE;
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/* If TRUE, set ownership of all files to UID `set_owner'. */
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int set_owner_flag = FALSE;
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uid_t set_owner;
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/* If TRUE, set group ownership of all files to GID `set_group'. */
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int set_group_flag = FALSE;
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gid_t set_group;
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/* If TRUE, do not chown the files. */
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int no_chown_flag = FALSE;
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/* If TRUE, try to write sparse ("holey") files. */
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int sparse_flag = FALSE;
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/* If TRUE, don't report number of blocks copied. */
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int quiet_flag = FALSE;
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/* If TRUE, only read the archive and verify the files' CRC's, don't
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actually extract the files. */
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int only_verify_crc_flag = FALSE;
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/* If TRUE, don't use any absolute paths, prefix them by `./'. */
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int no_abs_paths_flag = FALSE;
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#ifdef DEBUG_CPIO
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/* If TRUE, print debugging information. */
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int debug_flag = FALSE;
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#endif
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/* File position of last header read. Only used during -A to determine
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where the old TRAILER!!! record started. */
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int last_header_start = 0;
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/* With -i; if TRUE, copy only files that match any of the given patterns;
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if FALSE, copy only files that do not match any of the patterns. (-f) */
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int copy_matching_files = TRUE;
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/* With -itv; if TRUE, list numeric uid and gid instead of translating them
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into names. */
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int numeric_uid = FALSE;
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/* Name of file containing additional patterns (-E). */
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char *pattern_file_name = NULL;
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/* Message to print when end of medium is reached (-M). */
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char *new_media_message = NULL;
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/* With -M with %d, message to print when end of medium is reached. */
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char *new_media_message_with_number = NULL;
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char *new_media_message_after_number = NULL;
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/* File descriptor containing the archive. */
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int archive_des;
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/* Name of file containing the archive, if known; NULL if stdin/out. */
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char *archive_name = NULL;
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/* CRC checksum. */
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unsigned long crc;
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/* Input and output buffers. */
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char *input_buffer, *output_buffer;
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/* The size of the input buffer. */
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long input_buffer_size;
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/* Current locations in `input_buffer' and `output_buffer'. */
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char *in_buff, *out_buff;
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/* Current number of bytes stored at `input_buff' and `output_buff'. */
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long input_size, output_size;
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/* Total number of bytes read and written for all files.
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Now that many tape drives hold more than 4Gb we need more than 32
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bits to hold input_bytes and output_bytes. But it's not worth
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the trouble of adding special multi-precision arithmetic if the
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compiler doesn't support 64 bit ints since input_bytes and
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output_bytes are only used to print the number of blocks copied. */
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#ifdef __GNUC__
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long long input_bytes, output_bytes;
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#else
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long input_bytes, output_bytes;
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#endif
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/* 512 bytes of 0; used for various padding operations. */
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char zeros_512[512];
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/* Saving of argument values for later reference. */
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char *directory_name = NULL;
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char **save_patterns;
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int num_patterns;
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/* Character that terminates file names read from stdin. */
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char name_end = '\n';
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/* TRUE if input (cpio -i) or output (cpio -o) is a device node. */
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char input_is_special = FALSE;
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char output_is_special = FALSE;
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/* TRUE if lseek works on the input. */
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char input_is_seekable = FALSE;
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/* TRUE if lseek works on the output. */
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char output_is_seekable = FALSE;
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/* If nonzero, don't consider file names that contain a `:' to be
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on remote hosts; all files are local. */
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int f_force_local = 0;
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/* The name this program was run with. */
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char *program_name;
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/* A pointer to either lstat or stat, depending on whether
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dereferencing of symlinks is done for input files. */
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int (*xstat) ();
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/* Which copy operation to perform. (-i, -o, -p) */
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void (*copy_function) () = 0;
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