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- /* copypass.c - cpio copy pass sub-function.
- Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include <stdio.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include "filetypes.h"
- #include "system.h"
- #include "cpiohdr.h"
- #include "dstring.h"
- #include "extern.h"
-
- #ifndef HAVE_LCHOWN
- #define lchown chown
- #endif
-
- /* Copy files listed on the standard input into directory `directory_name'.
- If `link_flag', link instead of copying. */
-
- void
- process_copy_pass ()
- {
- dynamic_string input_name; /* Name of file from stdin. */
- dynamic_string output_name; /* Name of new file. */
- int dirname_len; /* Length of `directory_name'. */
- int res; /* Result of functions. */
- char *slash; /* For moving past slashes in input name. */
- struct utimbuf times; /* For resetting file times after copy. */
- struct stat in_file_stat; /* Stat record for input file. */
- struct stat out_file_stat; /* Stat record for output file. */
- int in_file_des; /* Input file descriptor. */
- int out_file_des; /* Output file descriptor. */
- int existing_dir; /* True if file is a dir & already exists. */
- #ifdef HPUX_CDF
- int cdf_flag;
- int cdf_char;
- #endif
-
- /* Initialize the copy pass. */
- dirname_len = strlen (directory_name);
- ds_init (&input_name, 128);
- ds_init (&output_name, dirname_len + 2);
- strcpy (output_name.ds_string, directory_name);
- output_name.ds_string[dirname_len] = '/';
- output_is_seekable = TRUE;
- /* Initialize this in case it has members we don't know to set. */
- bzero (×, sizeof (struct utimbuf));
-
- /* Copy files with names read from stdin. */
- while (ds_fgetstr (stdin, &input_name, name_end) != NULL)
- {
- int link_res = -1;
-
- /* Check for blank line and ignore it if found. */
- if (input_name.ds_string[0] == '\0')
- {
- error (0, 0, "blank line ignored");
- continue;
- }
-
- /* Check for current directory and ignore it if found. */
- if (input_name.ds_string[0] == '.'
- && (input_name.ds_string[1] == '\0'
- || (input_name.ds_string[1] == '/'
- && input_name.ds_string[2] == '\0')))
- continue;
-
- if ((*xstat) (input_name.ds_string, &in_file_stat) < 0)
- {
- error (0, errno, "%s", input_name.ds_string);
- continue;
- }
-
- /* Make the name of the new file. */
- for (slash = input_name.ds_string; *slash == '/'; ++slash)
- ;
- #ifdef HPUX_CDF
- /* For CDF's we add a 2nd `/' after all "hidden" directories.
- This kind of a kludge, but it's what we do when creating
- archives, and it's easier to do this than to separately
- keep track of which directories in a path are "hidden". */
- slash = add_cdf_double_slashes (slash);
- #endif
- ds_resize (&output_name, dirname_len + strlen (slash) + 2);
- strcpy (output_name.ds_string + dirname_len + 1, slash);
-
- existing_dir = FALSE;
- if (lstat (output_name.ds_string, &out_file_stat) == 0)
- {
- if (S_ISDIR (out_file_stat.st_mode)
- && S_ISDIR (in_file_stat.st_mode))
- {
- /* If there is already a directory there that
- we are trying to create, don't complain about it. */
- existing_dir = TRUE;
- }
- else if (!unconditional_flag
- && in_file_stat.st_mtime <= out_file_stat.st_mtime)
- {
- error (0, 0, "%s not created: newer or same age version exists",
- output_name.ds_string);
- continue; /* Go to the next file. */
- }
- else if (S_ISDIR (out_file_stat.st_mode)
- ? rmdir (output_name.ds_string)
- : unlink (output_name.ds_string))
- {
- error (0, errno, "cannot remove current %s",
- output_name.ds_string);
- continue; /* Go to the next file. */
- }
- }
-
- /* Do the real copy or link. */
- if (S_ISREG (in_file_stat.st_mode))
- {
- #ifndef __MSDOS__
- /* Can the current file be linked to a another file?
- Set link_name to the original file name. */
- if (link_flag)
- /* User said to link it if possible. Try and link to
- the original copy. If that fails we'll still try
- and link to a copy we've already made. */
- link_res = link_to_name (output_name.ds_string,
- input_name.ds_string);
- if ( (link_res < 0) && (in_file_stat.st_nlink > 1) )
- link_res = link_to_maj_min_ino (output_name.ds_string,
- major (in_file_stat.st_dev),
- minor (in_file_stat.st_dev),
- in_file_stat.st_ino);
- #endif
-
- /* If the file was not linked, copy contents of file. */
- if (link_res < 0)
- {
- in_file_des = open (input_name.ds_string,
- O_RDONLY | O_BINARY, 0);
- if (in_file_des < 0)
- {
- error (0, errno, "%s", input_name.ds_string);
- continue;
- }
- out_file_des = open (output_name.ds_string,
- O_CREAT | O_WRONLY | O_BINARY, 0600);
- if (out_file_des < 0 && create_dir_flag)
- {
- create_all_directories (output_name.ds_string);
- out_file_des = open (output_name.ds_string,
- O_CREAT | O_WRONLY | O_BINARY, 0600);
- }
- if (out_file_des < 0)
- {
- error (0, errno, "%s", output_name.ds_string);
- close (in_file_des);
- continue;
- }
-
- copy_files (in_file_des, out_file_des, in_file_stat.st_size);
- empty_output_buffer (out_file_des);
- if (close (in_file_des) < 0)
- error (0, errno, "%s", input_name.ds_string);
- if (close (out_file_des) < 0)
- error (0, errno, "%s", output_name.ds_string);
-
- /* Set the attributes of the new file. */
- if (!no_chown_flag)
- if ((chown (output_name.ds_string,
- set_owner_flag ? set_owner : in_file_stat.st_uid,
- set_group_flag ? set_group : in_file_stat.st_gid) < 0)
- && errno != EPERM)
- error (0, errno, "%s", output_name.ds_string);
- /* chown may have turned off some permissions we wanted. */
- if (chmod (output_name.ds_string, in_file_stat.st_mode) < 0)
- error (0, errno, "%s", output_name.ds_string);
- if (reset_time_flag)
- {
- times.actime = in_file_stat.st_atime;
- times.modtime = in_file_stat.st_mtime;
- if (utime (input_name.ds_string, ×) < 0)
- error (0, errno, "%s", input_name.ds_string);
- if (utime (output_name.ds_string, ×) < 0)
- error (0, errno, "%s", output_name.ds_string);
- }
- if (retain_time_flag)
- {
- times.actime = times.modtime = in_file_stat.st_mtime;
- if (utime (output_name.ds_string, ×) < 0)
- error (0, errno, "%s", output_name.ds_string);
- }
- }
- }
- else if (S_ISDIR (in_file_stat.st_mode))
- {
- #ifdef HPUX_CDF
- cdf_flag = 0;
- #endif
- if (!existing_dir)
- {
- #ifdef HPUX_CDF
- /* If the directory name ends in a + and is SUID,
- then it is a CDF. Strip the trailing + from the name
- before creating it. */
- cdf_char = strlen (output_name.ds_string) - 1;
- if ( (cdf_char > 0) &&
- (in_file_stat.st_mode & 04000) &&
- (output_name.ds_string [cdf_char] == '+') )
- {
- output_name.ds_string [cdf_char] = '\0';
- cdf_flag = 1;
- }
- #endif
- res = mkdir (output_name.ds_string, in_file_stat.st_mode);
-
- }
- else
- res = 0;
- if (res < 0 && create_dir_flag)
- {
- create_all_directories (output_name.ds_string);
- res = mkdir (output_name.ds_string, in_file_stat.st_mode);
- }
- if (res < 0)
- {
- error (0, errno, "%s", output_name.ds_string);
- continue;
- }
- if (!no_chown_flag)
- if ((chown (output_name.ds_string,
- set_owner_flag ? set_owner : in_file_stat.st_uid,
- set_group_flag ? set_group : in_file_stat.st_gid) < 0)
- && errno != EPERM)
- error (0, errno, "%s", output_name.ds_string);
- /* chown may have turned off some permissions we wanted. */
- if (chmod (output_name.ds_string, in_file_stat.st_mode) < 0)
- error (0, errno, "%s", output_name.ds_string);
- #ifdef HPUX_CDF
- if (cdf_flag)
- /* Once we "hide" the directory with the chmod(),
- we have to refer to it using name+ isntead of name. */
- output_name.ds_string [cdf_char] = '+';
- #endif
- if (retain_time_flag)
- {
- times.actime = times.modtime = in_file_stat.st_mtime;
- if (utime (output_name.ds_string, ×) < 0)
- error (0, errno, "%s", output_name.ds_string);
- }
- }
- #ifndef __MSDOS__
- else if (S_ISCHR (in_file_stat.st_mode) ||
- S_ISBLK (in_file_stat.st_mode) ||
- #ifdef S_ISFIFO
- S_ISFIFO (in_file_stat.st_mode) ||
- #endif
- #ifdef S_ISSOCK
- S_ISSOCK (in_file_stat.st_mode) ||
- #endif
- 0)
- {
- /* Can the current file be linked to a another file?
- Set link_name to the original file name. */
- if (link_flag)
- /* User said to link it if possible. */
- link_res = link_to_name (output_name.ds_string,
- input_name.ds_string);
- if ( (link_res < 0) && (in_file_stat.st_nlink > 1) )
- link_res = link_to_maj_min_ino (output_name.ds_string,
- major (in_file_stat.st_dev),
- minor (in_file_stat.st_dev),
- in_file_stat.st_ino);
-
- if (link_res < 0)
- {
- res = mknod (output_name.ds_string, in_file_stat.st_mode,
- in_file_stat.st_rdev);
- if (res < 0 && create_dir_flag)
- {
- create_all_directories (output_name.ds_string);
- res = mknod (output_name.ds_string, in_file_stat.st_mode,
- in_file_stat.st_rdev);
- }
- if (res < 0)
- {
- error (0, errno, "%s", output_name.ds_string);
- continue;
- }
- if (!no_chown_flag)
- if ((chown (output_name.ds_string,
- set_owner_flag ? set_owner : in_file_stat.st_uid,
- set_group_flag ? set_group : in_file_stat.st_gid) < 0)
- && errno != EPERM)
- error (0, errno, "%s", output_name.ds_string);
- /* chown may have turned off some permissions we wanted. */
- if (chmod (output_name.ds_string, in_file_stat.st_mode) < 0)
- error (0, errno, "%s", output_name.ds_string);
- if (retain_time_flag)
- {
- times.actime = times.modtime = in_file_stat.st_mtime;
- if (utime (output_name.ds_string, ×) < 0)
- error (0, errno, "%s", output_name.ds_string);
- }
- }
- }
- #endif
-
- #ifdef S_ISLNK
- else if (S_ISLNK (in_file_stat.st_mode))
- {
- char *link_name;
- link_name = (char *) xmalloc ((unsigned int) in_file_stat.st_size + 1);
-
- if (readlink (input_name.ds_string, link_name,
- in_file_stat.st_size) < 0)
- {
- error (0, errno, "%s", input_name.ds_string);
- free (link_name);
- continue;
- }
- link_name[in_file_stat.st_size] = '\0';
-
- res = UMASKED_SYMLINK (link_name, output_name.ds_string,
- in_file_stat.st_mode);
- if (res < 0 && create_dir_flag)
- {
- create_all_directories (output_name.ds_string);
- res = UMASKED_SYMLINK (link_name, output_name.ds_string,
- in_file_stat.st_mode);
- }
- if (res < 0)
- {
- error (0, errno, "%s", output_name.ds_string);
- free (link_name);
- continue;
- }
-
- /* Set the attributes of the new link. */
- if (!no_chown_flag)
- if ((lchown (output_name.ds_string,
- set_owner_flag ? set_owner : in_file_stat.st_uid,
- set_group_flag ? set_group : in_file_stat.st_gid) < 0)
- && errno != EPERM)
- error (0, errno, "%s", output_name.ds_string);
- free (link_name);
- }
- #endif
- else
- {
- error (0, 0, "%s: unknown file type", input_name.ds_string);
- }
-
- if (verbose_flag)
- fprintf (stderr, "%s\n", output_name.ds_string);
- if (dot_flag)
- fputc ('.', stderr);
- }
-
- if (dot_flag)
- fputc ('\n', stderr);
- res = (output_bytes + io_block_size - 1) / io_block_size;
- if (res == 1)
- fprintf (stderr, "1 block\n");
- else
- fprintf (stderr, "%d blocks\n", res);
- }
-
- /* Try and create a hard link from FILE_NAME to another file
- with the given major/minor device number and inode. If no other
- file with the same major/minor/inode numbers is known, add this file
- to the list of known files and associated major/minor/inode numbers
- and return -1. If another file with the same major/minor/inode
- numbers is found, try and create another link to it using
- link_to_name, and return 0 for success and -1 for failure. */
-
- int
- link_to_maj_min_ino (file_name, st_dev_maj, st_dev_min, st_ino)
- char *file_name;
- int st_dev_maj;
- int st_dev_min;
- int st_ino;
- {
- int link_res;
- char *link_name;
- link_res = -1;
- #ifndef __MSDOS__
- /* Is the file a link to a previously copied file? */
- link_name = find_inode_file (st_ino,
- st_dev_maj,
- st_dev_min);
- if (link_name == NULL)
- add_inode (st_ino, file_name,
- st_dev_maj,
- st_dev_min);
- else
- link_res = link_to_name (file_name, link_name);
- #endif
- return link_res;
- }
-
- /* Try and create a hard link from LINK_NAME to LINK_TARGET. If
- `create_dir_flag' is set, any non-existent (parent) directories
- needed by LINK_NAME will be created. If the link is successfully
- created and `verbose_flag' is set, print "LINK_TARGET linked to LINK_NAME\n".
- If the link can not be created and `link_flag' is set, print
- "cannot link LINK_TARGET to LINK_NAME\n". Return 0 if the link
- is created, -1 otherwise. */
-
- int
- link_to_name (link_name, link_target)
- char *link_name;
- char *link_target;
- {
- int res;
- #ifdef __MSDOS__
- res = -1;
- #else /* not __MSDOS__ */
- res = link (link_target, link_name);
- if (res < 0 && create_dir_flag)
- {
- create_all_directories (link_name);
- res = link (link_target, link_name);
- }
- if (res == 0)
- {
- if (verbose_flag)
- error (0, 0, "%s linked to %s",
- link_target, link_name);
- }
- else if (link_flag)
- {
- error (0, errno, "cannot link %s to %s",
- link_target, link_name);
- }
- #endif /* not __MSDOS__ */
- return res;
- }
-