/* install - copy files and set attributes
- Copyright (C) 1989-1991, 1995-2010 Free Software Foundation, Inc.
+ Copyright (C) 1989-2013 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
#include <pwd.h>
#include <grp.h>
#include <selinux/selinux.h>
+#include <sys/wait.h>
#include "system.h"
#include "backupfile.h"
#include "utimens.h"
#include "xstrtol.h"
-/* The official name of this program (e.g., no `g' prefix). */
+/* The official name of this program (e.g., no 'g' prefix). */
#define PROGRAM_NAME "install"
#define AUTHORS proper_name ("David MacKenzie")
-#if HAVE_SYS_WAIT_H
-# include <sys/wait.h>
-#endif
-
static int selinux_enabled = 0;
static bool use_default_selinux_context = true;
# define matchpathcon_init_prefix(a, p) /* empty */
#endif
-static bool change_timestamps (struct stat const *from_sb, char const *to);
-static bool change_attributes (char const *name);
-static bool copy_file (const char *from, const char *to,
- const struct cp_options *x);
-static bool install_file_in_file_parents (char const *from, char *to,
- struct cp_options *x);
-static bool install_file_in_dir (const char *from, const char *to_dir,
- const struct cp_options *x);
-static bool install_file_in_file (const char *from, const char *to,
- const struct cp_options *x);
-static void get_ids (void);
-static void strip (char const *name);
-static void announce_mkdir (char const *dir, void *options);
-static int make_ancestor (char const *dir, char const *component,
- void *options);
-void usage (int status);
-
/* The user name that will own the files, or NULL to make the owner
the current user ID. */
static char *owner_name;
-/* The user ID corresponding to `owner_name'. */
+/* The user ID corresponding to 'owner_name'. */
static uid_t owner_id;
/* The group name that will own the files, or NULL to make the group
the current group ID. */
static char *group_name;
-/* The group ID corresponding to `group_name'. */
+/* The group ID corresponding to 'group_name'. */
static gid_t group_id;
#define DEFAULT_MODE (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
enum
{
PRESERVE_CONTEXT_OPTION = CHAR_MAX + 1,
- PRESERVE_CONTEXT_OPTION_DEPRECATED,
STRIP_PROGRAM_OPTION
};
{"owner", required_argument, NULL, 'o'},
{"preserve-timestamps", no_argument, NULL, 'p'},
{"preserve-context", no_argument, NULL, PRESERVE_CONTEXT_OPTION},
- /* --preserve_context was silently supported until Apr 2009.
- FIXME: disable altogether in a year or so. */
- {"preserve_context", no_argument, NULL, PRESERVE_CONTEXT_OPTION_DEPRECATED},
{"strip", no_argument, NULL, 's'},
{"strip-program", required_argument, NULL, STRIP_PROGRAM_OPTION},
{"suffix", required_argument, NULL, 'S'},
static bool
extra_mode (mode_t input)
{
- const mode_t mask = ~S_IRWXUGO & ~S_IFMT;
- return !! (input & mask);
+ mode_t mask = S_IRWXUGO | S_IFMT;
+ return !! (input & ~ mask);
}
/* Return true if copy of file SRC_NAME to file DEST_NAME is necessary. */
return true;
if (src_sb.st_size != dest_sb.st_size
- || (dest_sb.st_mode & CHMOD_MODE_BITS) != mode
- || dest_sb.st_uid != (owner_id == (uid_t) -1 ? getuid () : owner_id)
- || dest_sb.st_gid != (group_id == (gid_t) -1 ? getgid () : group_id))
+ || (dest_sb.st_mode & CHMOD_MODE_BITS) != mode)
+ return true;
+
+ if (owner_id == (uid_t) -1)
+ {
+ errno = 0;
+ uid_t ruid = getuid ();
+ if ((ruid == (uid_t) -1 && errno) || dest_sb.st_uid != ruid)
+ return true;
+ }
+ else if (dest_sb.st_uid != owner_id)
+ return true;
+
+ if (group_id == (uid_t) -1)
+ {
+ errno = 0;
+ gid_t rgid = getgid ();
+ if ((rgid == (uid_t) -1 && errno) || dest_sb.st_gid != rgid)
+ return true;
+ }
+ else if (dest_sb.st_gid != group_id)
return true;
/* compare SELinux context if preserving */
x->preserve_links = false;
x->preserve_mode = false;
x->preserve_timestamps = false;
+ x->explicit_no_preserve_mode = false;
x->reduce_diagnostics=false;
+ x->data_copy_required = true;
x->require_preserve = false;
x->require_preserve_context = false;
x->require_preserve_xattr = false;
/* If there's an error determining the context, or it has none,
return to allow default context */
- if ((matchpathcon (file, st.st_mode, &scontext) != 0) ||
- STREQ (scontext, "<<none>>"))
+ if ((matchpathcon (file, st.st_mode, &scontext) != 0)
+ || STREQ (scontext, "<<none>>"))
{
if (scontext != NULL)
freecon (scontext);
return is_a_dir;
}
+/* Report that directory DIR was made, if OPTIONS requests this. */
+static void
+announce_mkdir (char const *dir, void *options)
+{
+ struct cp_options const *x = options;
+ if (x->verbose)
+ prog_fprintf (stdout, _("creating directory %s"), quote (dir));
+}
+
+/* Make ancestor directory DIR, whose last file name component is
+ COMPONENT, with options OPTIONS. Assume the working directory is
+ COMPONENT's parent. */
+static int
+make_ancestor (char const *dir, char const *component, void *options)
+{
+ int r = mkdir (component, DEFAULT_MODE);
+ if (r == 0)
+ announce_mkdir (dir, options);
+ return r;
+}
+
/* Process a command-line file name, for the -d option. */
static int
process_dir (char *dir, struct savewd *wd, void *options)
: EXIT_FAILURE);
}
-int
-main (int argc, char **argv)
-{
- int optc;
- int exit_status = EXIT_SUCCESS;
- const char *specified_mode = NULL;
- bool make_backups = false;
- char *backup_suffix_string;
- char *version_control_string = NULL;
- bool mkdir_and_install = false;
- struct cp_options x;
- char const *target_directory = NULL;
- bool no_target_directory = false;
- int n_files;
- char **file;
- bool strip_program_specified = false;
- security_context_t scontext = NULL;
- /* set iff kernel has extra selinux system calls */
- selinux_enabled = (0 < is_selinux_enabled ());
-
- initialize_main (&argc, &argv);
- set_program_name (argv[0]);
- setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
+/* Copy file FROM onto file TO, creating TO if necessary.
+ Return true if successful. */
- atexit (close_stdin);
+static bool
+copy_file (const char *from, const char *to, const struct cp_options *x)
+{
+ bool copy_into_self;
- cp_option_init (&x);
+ if (copy_only_if_needed && !need_copy (from, to, x))
+ return true;
- owner_name = NULL;
- group_name = NULL;
- strip_files = false;
- dir_arg = false;
- umask (0);
+ /* Allow installing from non-regular files like /dev/null.
+ Charles Karney reported that some Sun version of install allows that
+ and that sendmail's installation process relies on the behavior.
+ However, since !x->recursive, the call to "copy" will fail if FROM
+ is a directory. */
- /* FIXME: consider not calling getenv for SIMPLE_BACKUP_SUFFIX unless
- we'll actually use backup_suffix_string. */
- backup_suffix_string = getenv ("SIMPLE_BACKUP_SUFFIX");
+ return copy (from, to, false, x, ©_into_self, NULL);
+}
- while ((optc = getopt_long (argc, argv, "bcCsDdg:m:o:pt:TvS:Z:", long_options,
- NULL)) != -1)
- {
- switch (optc)
- {
- case 'b':
- make_backups = true;
- if (optarg)
- version_control_string = optarg;
- break;
- case 'c':
- break;
- case 'C':
- copy_only_if_needed = true;
- break;
- case 's':
- strip_files = true;
-#ifdef SIGCHLD
- /* System V fork+wait does not work if SIGCHLD is ignored. */
- signal (SIGCHLD, SIG_DFL);
-#endif
- break;
- case STRIP_PROGRAM_OPTION:
- strip_program = xstrdup (optarg);
- strip_program_specified = true;
- break;
- case 'd':
- dir_arg = true;
- break;
- case 'D':
- mkdir_and_install = true;
- break;
- case 'v':
- x.verbose = true;
- break;
- case 'g':
- group_name = optarg;
- break;
- case 'm':
- specified_mode = optarg;
- break;
- case 'o':
- owner_name = optarg;
- break;
- case 'p':
- x.preserve_timestamps = true;
- break;
- case 'S':
- make_backups = true;
- backup_suffix_string = optarg;
- break;
- case 't':
- if (target_directory)
- error (EXIT_FAILURE, 0,
- _("multiple target directories specified"));
- else
- {
- struct stat st;
- if (stat (optarg, &st) != 0)
- error (EXIT_FAILURE, errno, _("accessing %s"), quote (optarg));
- if (! S_ISDIR (st.st_mode))
- error (EXIT_FAILURE, 0, _("target %s is not a directory"),
- quote (optarg));
- }
- target_directory = optarg;
- break;
- case 'T':
- no_target_directory = true;
- break;
+/* Set the attributes of file or directory NAME.
+ Return true if successful. */
- case PRESERVE_CONTEXT_OPTION_DEPRECATED:
- error (0, 0, _("WARNING: --preserve_context is deprecated; "
- "use --preserve-context instead"));
- /* fall through */
- case PRESERVE_CONTEXT_OPTION:
- if ( ! selinux_enabled)
- {
- error (0, 0, _("WARNING: ignoring --preserve-context; "
- "this kernel is not SELinux-enabled"));
- break;
- }
- x.preserve_security_context = true;
- use_default_selinux_context = false;
- break;
- case 'Z':
- if ( ! selinux_enabled)
- {
- error (0, 0, _("WARNING: ignoring --context (-Z); "
- "this kernel is not SELinux-enabled"));
- break;
- }
- scontext = optarg;
- use_default_selinux_context = false;
- break;
- case_GETOPT_HELP_CHAR;
- case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
- default:
- usage (EXIT_FAILURE);
- }
- }
+static bool
+change_attributes (char const *name)
+{
+ bool ok = false;
+ /* chown must precede chmod because on some systems,
+ chown clears the set[ug]id bits for non-superusers,
+ resulting in incorrect permissions.
+ On System V, users can give away files with chown and then not
+ be able to chmod them. So don't give files away.
- /* Check for invalid combinations of arguments. */
- if (dir_arg && strip_files)
- error (EXIT_FAILURE, 0,
- _("the strip option may not be used when installing a directory"));
- if (dir_arg && target_directory)
- error (EXIT_FAILURE, 0,
- _("target directory not allowed when installing a directory"));
+ We don't normally ignore errors from chown because the idea of
+ the install command is that the file is supposed to end up with
+ precisely the attributes that the user specified (or defaulted).
+ If the file doesn't end up with the group they asked for, they'll
+ want to know. */
- if (x.preserve_security_context && scontext != NULL)
- error (EXIT_FAILURE, 0,
- _("cannot force target context to %s and preserve it"),
- quote (scontext));
+ if (! (owner_id == (uid_t) -1 && group_id == (gid_t) -1)
+ && lchown (name, owner_id, group_id) != 0)
+ error (0, errno, _("cannot change ownership of %s"), quote (name));
+ else if (chmod (name, mode) != 0)
+ error (0, errno, _("cannot change permissions of %s"), quote (name));
+ else
+ ok = true;
- if (backup_suffix_string)
- simple_backup_suffix = xstrdup (backup_suffix_string);
+ if (use_default_selinux_context)
+ setdefaultfilecon (name);
- x.backup_type = (make_backups
- ? xget_version (_("backup type"),
- version_control_string)
- : no_backups);
+ return ok;
+}
- if (scontext && setfscreatecon (scontext) < 0)
- error (EXIT_FAILURE, errno,
- _("failed to set default file creation context to %s"),
- quote (scontext));
+/* Set the timestamps of file DEST to match those of SRC_SB.
+ Return true if successful. */
- n_files = argc - optind;
- file = argv + optind;
+static bool
+change_timestamps (struct stat const *src_sb, char const *dest)
+{
+ struct timespec timespec[2];
+ timespec[0] = get_stat_atime (src_sb);
+ timespec[1] = get_stat_mtime (src_sb);
- if (n_files <= ! (dir_arg || target_directory))
+ if (utimens (dest, timespec))
{
- if (n_files <= 0)
- error (0, 0, _("missing file operand"));
- else
- error (0, 0, _("missing destination file operand after %s"),
- quote (file[0]));
- usage (EXIT_FAILURE);
+ error (0, errno, _("cannot set time stamps for %s"), quote (dest));
+ return false;
}
-
- if (no_target_directory)
- {
- if (target_directory)
- error (EXIT_FAILURE, 0,
- _("cannot combine --target-directory (-t) "
- "and --no-target-directory (-T)"));
- if (2 < n_files)
- {
- error (0, 0, _("extra operand %s"), quote (file[2]));
- usage (EXIT_FAILURE);
- }
- }
- else if (! (dir_arg || target_directory))
- {
- if (2 <= n_files && target_directory_operand (file[n_files - 1]))
- target_directory = file[--n_files];
- else if (2 < n_files)
- error (EXIT_FAILURE, 0, _("target %s is not a directory"),
- quote (file[n_files - 1]));
- }
-
- if (specified_mode)
- {
- struct mode_change *change = mode_compile (specified_mode);
- if (!change)
- error (EXIT_FAILURE, 0, _("invalid mode %s"), quote (specified_mode));
- mode = mode_adjust (0, false, 0, change, NULL);
- dir_mode = mode_adjust (0, true, 0, change, &dir_mode_bits);
- free (change);
- }
-
- if (strip_program_specified && !strip_files)
- error (0, 0, _("WARNING: ignoring --strip-program option as -s option was "
- "not specified"));
-
- if (copy_only_if_needed && x.preserve_timestamps)
- {
- error (0, 0, _("options --compare (-C) and --preserve-timestamps are "
- "mutually exclusive"));
- usage (EXIT_FAILURE);
- }
-
- if (copy_only_if_needed && strip_files)
- {
- error (0, 0, _("options --compare (-C) and --strip are mutually "
- "exclusive"));
- usage (EXIT_FAILURE);
- }
-
- if (copy_only_if_needed && extra_mode (mode))
- error (0, 0, _("the --compare (-C) option is ignored when you"
- " specify a mode with non-permission bits"));
-
- get_ids ();
-
- if (dir_arg)
- exit_status = savewd_process_files (n_files, file, process_dir, &x);
- else
- {
- /* FIXME: it's a little gross that this initialization is
- required by copy.c::copy. */
- hash_init ();
-
- if (!target_directory)
- {
- if (! (mkdir_and_install
- ? install_file_in_file_parents (file[0], file[1], &x)
- : install_file_in_file (file[0], file[1], &x)))
- exit_status = EXIT_FAILURE;
- }
- else
- {
- int i;
- dest_info_init (&x);
- for (i = 0; i < n_files; i++)
- if (! install_file_in_dir (file[i], target_directory, &x))
- exit_status = EXIT_FAILURE;
- }
- }
-
- exit (exit_status);
-}
-
-/* Copy file FROM onto file TO, creating any missing parent directories of TO.
- Return true if successful. */
-
-static bool
-install_file_in_file_parents (char const *from, char *to,
- struct cp_options *x)
-{
- bool save_working_directory =
- ! (IS_ABSOLUTE_FILE_NAME (from) && IS_ABSOLUTE_FILE_NAME (to));
- int status = EXIT_SUCCESS;
-
- struct savewd wd;
- savewd_init (&wd);
- if (! save_working_directory)
- savewd_finish (&wd);
-
- if (mkancesdirs (to, &wd, make_ancestor, x) == -1)
- {
- error (0, errno, _("cannot create directory %s"), to);
- status = EXIT_FAILURE;
- }
-
- if (save_working_directory)
- {
- int restore_result = savewd_restore (&wd, status);
- int restore_errno = errno;
- savewd_finish (&wd);
- if (EXIT_SUCCESS < restore_result)
- return false;
- if (restore_result < 0 && status == EXIT_SUCCESS)
- {
- error (0, restore_errno, _("cannot create directory %s"), to);
- return false;
- }
- }
-
- return (status == EXIT_SUCCESS && install_file_in_file (from, to, x));
-}
-
-/* Copy file FROM onto file TO and give TO the appropriate
- attributes.
- Return true if successful. */
-
-static bool
-install_file_in_file (const char *from, const char *to,
- const struct cp_options *x)
-{
- struct stat from_sb;
- if (x->preserve_timestamps && stat (from, &from_sb) != 0)
- {
- error (0, errno, _("cannot stat %s"), quote (from));
- return false;
- }
- if (! copy_file (from, to, x))
- return false;
- if (strip_files)
- strip (to);
- if (x->preserve_timestamps && (strip_files || ! S_ISREG (from_sb.st_mode))
- && ! change_timestamps (&from_sb, to))
- return false;
- return change_attributes (to);
-}
-
-/* Copy file FROM into directory TO_DIR, keeping its same name,
- and give the copy the appropriate attributes.
- Return true if successful. */
-
-static bool
-install_file_in_dir (const char *from, const char *to_dir,
- const struct cp_options *x)
-{
- const char *from_base = last_component (from);
- char *to = file_name_concat (to_dir, from_base, NULL);
- bool ret = install_file_in_file (from, to, x);
- free (to);
- return ret;
-}
-
-/* Copy file FROM onto file TO, creating TO if necessary.
- Return true if successful. */
-
-static bool
-copy_file (const char *from, const char *to, const struct cp_options *x)
-{
- bool copy_into_self;
-
- if (copy_only_if_needed && !need_copy (from, to, x))
- return true;
-
- /* Allow installing from non-regular files like /dev/null.
- Charles Karney reported that some Sun version of install allows that
- and that sendmail's installation process relies on the behavior.
- However, since !x->recursive, the call to "copy" will fail if FROM
- is a directory. */
-
- return copy (from, to, false, x, ©_into_self, NULL);
-}
-
-/* Set the attributes of file or directory NAME.
- Return true if successful. */
-
-static bool
-change_attributes (char const *name)
-{
- bool ok = false;
- /* chown must precede chmod because on some systems,
- chown clears the set[ug]id bits for non-superusers,
- resulting in incorrect permissions.
- On System V, users can give away files with chown and then not
- be able to chmod them. So don't give files away.
-
- We don't normally ignore errors from chown because the idea of
- the install command is that the file is supposed to end up with
- precisely the attributes that the user specified (or defaulted).
- If the file doesn't end up with the group they asked for, they'll
- want to know. */
-
- if (! (owner_id == (uid_t) -1 && group_id == (gid_t) -1)
- && lchown (name, owner_id, group_id) != 0)
- error (0, errno, _("cannot change ownership of %s"), quote (name));
- else if (chmod (name, mode) != 0)
- error (0, errno, _("cannot change permissions of %s"), quote (name));
- else
- ok = true;
-
- if (use_default_selinux_context)
- setdefaultfilecon (name);
-
- return ok;
-}
-
-/* Set the timestamps of file TO to match those of file FROM.
- Return true if successful. */
-
-static bool
-change_timestamps (struct stat const *from_sb, char const *to)
-{
- struct timespec timespec[2];
- timespec[0] = get_stat_atime (from_sb);
- timespec[1] = get_stat_mtime (from_sb);
-
- if (utimens (to, timespec))
- {
- error (0, errno, _("cannot set time stamps for %s"), quote (to));
- return false;
- }
- return true;
-}
+ return true;
+}
/* Strip the symbol table from the file NAME.
We could dig the magic number out of the file first to
group_id = (gid_t) -1;
}
-/* Report that directory DIR was made, if OPTIONS requests this. */
-static void
-announce_mkdir (char const *dir, void *options)
-{
- struct cp_options const *x = options;
- if (x->verbose)
- prog_fprintf (stdout, _("creating directory %s"), quote (dir));
-}
-
-/* Make ancestor directory DIR, whose last file name component is
- COMPONENT, with options OPTIONS. Assume the working directory is
- COMPONENT's parent. */
-static int
-make_ancestor (char const *dir, char const *component, void *options)
-{
- int r = mkdir (component, DEFAULT_MODE);
- if (r == 0)
- announce_mkdir (dir, options);
- return r;
-}
-
void
usage (int status)
{
if (status != EXIT_SUCCESS)
- fprintf (stderr, _("Try `%s --help' for more information.\n"),
- program_name);
+ emit_try_help ();
else
{
printf (_("\
"), stdout);
fputs (_("\
--preserve-context preserve SELinux security context\n\
- -Z, --context=CONTEXT set SELinux security context of files and directories\n\
+ -Z, --context=CONTEXT set SELinux security context of files and directories\
+\n\
"), stdout);
fputs (HELP_OPTION_DESCRIPTION, stdout);
fputs (VERSION_OPTION_DESCRIPTION, stdout);
fputs (_("\
\n\
-The backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.\n\
+The backup suffix is '~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.\n\
The version control method may be selected via the --backup option or through\n\
the VERSION_CONTROL environment variable. Here are the values:\n\
\n\
}
exit (status);
}
+
+/* Copy file FROM onto file TO and give TO the appropriate
+ attributes.
+ Return true if successful. */
+
+static bool
+install_file_in_file (const char *from, const char *to,
+ const struct cp_options *x)
+{
+ struct stat from_sb;
+ if (x->preserve_timestamps && stat (from, &from_sb) != 0)
+ {
+ error (0, errno, _("cannot stat %s"), quote (from));
+ return false;
+ }
+ if (! copy_file (from, to, x))
+ return false;
+ if (strip_files)
+ strip (to);
+ if (x->preserve_timestamps && (strip_files || ! S_ISREG (from_sb.st_mode))
+ && ! change_timestamps (&from_sb, to))
+ return false;
+ return change_attributes (to);
+}
+
+/* Copy file FROM onto file TO, creating any missing parent directories of TO.
+ Return true if successful. */
+
+static bool
+install_file_in_file_parents (char const *from, char *to,
+ struct cp_options *x)
+{
+ bool save_working_directory =
+ ! (IS_ABSOLUTE_FILE_NAME (from) && IS_ABSOLUTE_FILE_NAME (to));
+ int status = EXIT_SUCCESS;
+
+ struct savewd wd;
+ savewd_init (&wd);
+ if (! save_working_directory)
+ savewd_finish (&wd);
+
+ if (mkancesdirs (to, &wd, make_ancestor, x) == -1)
+ {
+ error (0, errno, _("cannot create directory %s"), to);
+ status = EXIT_FAILURE;
+ }
+
+ if (save_working_directory)
+ {
+ int restore_result = savewd_restore (&wd, status);
+ int restore_errno = errno;
+ savewd_finish (&wd);
+ if (EXIT_SUCCESS < restore_result)
+ return false;
+ if (restore_result < 0 && status == EXIT_SUCCESS)
+ {
+ error (0, restore_errno, _("cannot create directory %s"), to);
+ return false;
+ }
+ }
+
+ return (status == EXIT_SUCCESS && install_file_in_file (from, to, x));
+}
+
+/* Copy file FROM into directory TO_DIR, keeping its same name,
+ and give the copy the appropriate attributes.
+ Return true if successful. */
+
+static bool
+install_file_in_dir (const char *from, const char *to_dir,
+ const struct cp_options *x)
+{
+ const char *from_base = last_component (from);
+ char *to = file_name_concat (to_dir, from_base, NULL);
+ bool ret = install_file_in_file (from, to, x);
+ free (to);
+ return ret;
+}
+
+int
+main (int argc, char **argv)
+{
+ int optc;
+ int exit_status = EXIT_SUCCESS;
+ const char *specified_mode = NULL;
+ bool make_backups = false;
+ char *backup_suffix_string;
+ char *version_control_string = NULL;
+ bool mkdir_and_install = false;
+ struct cp_options x;
+ char const *target_directory = NULL;
+ bool no_target_directory = false;
+ int n_files;
+ char **file;
+ bool strip_program_specified = false;
+ security_context_t scontext = NULL;
+ /* set iff kernel has extra selinux system calls */
+ selinux_enabled = (0 < is_selinux_enabled ());
+
+ initialize_main (&argc, &argv);
+ set_program_name (argv[0]);
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ atexit (close_stdin);
+
+ cp_option_init (&x);
+
+ owner_name = NULL;
+ group_name = NULL;
+ strip_files = false;
+ dir_arg = false;
+ umask (0);
+
+ /* FIXME: consider not calling getenv for SIMPLE_BACKUP_SUFFIX unless
+ we'll actually use backup_suffix_string. */
+ backup_suffix_string = getenv ("SIMPLE_BACKUP_SUFFIX");
+
+ while ((optc = getopt_long (argc, argv, "bcCsDdg:m:o:pt:TvS:Z:", long_options,
+ NULL)) != -1)
+ {
+ switch (optc)
+ {
+ case 'b':
+ make_backups = true;
+ if (optarg)
+ version_control_string = optarg;
+ break;
+ case 'c':
+ break;
+ case 'C':
+ copy_only_if_needed = true;
+ break;
+ case 's':
+ strip_files = true;
+#ifdef SIGCHLD
+ /* System V fork+wait does not work if SIGCHLD is ignored. */
+ signal (SIGCHLD, SIG_DFL);
+#endif
+ break;
+ case STRIP_PROGRAM_OPTION:
+ strip_program = xstrdup (optarg);
+ strip_program_specified = true;
+ break;
+ case 'd':
+ dir_arg = true;
+ break;
+ case 'D':
+ mkdir_and_install = true;
+ break;
+ case 'v':
+ x.verbose = true;
+ break;
+ case 'g':
+ group_name = optarg;
+ break;
+ case 'm':
+ specified_mode = optarg;
+ break;
+ case 'o':
+ owner_name = optarg;
+ break;
+ case 'p':
+ x.preserve_timestamps = true;
+ break;
+ case 'S':
+ make_backups = true;
+ backup_suffix_string = optarg;
+ break;
+ case 't':
+ if (target_directory)
+ error (EXIT_FAILURE, 0,
+ _("multiple target directories specified"));
+ else
+ {
+ struct stat st;
+ if (stat (optarg, &st) != 0)
+ error (EXIT_FAILURE, errno, _("accessing %s"), quote (optarg));
+ if (! S_ISDIR (st.st_mode))
+ error (EXIT_FAILURE, 0, _("target %s is not a directory"),
+ quote (optarg));
+ }
+ target_directory = optarg;
+ break;
+ case 'T':
+ no_target_directory = true;
+ break;
+
+ case PRESERVE_CONTEXT_OPTION:
+ if ( ! selinux_enabled)
+ {
+ error (0, 0, _("WARNING: ignoring --preserve-context; "
+ "this kernel is not SELinux-enabled"));
+ break;
+ }
+ x.preserve_security_context = true;
+ use_default_selinux_context = false;
+ break;
+ case 'Z':
+ if ( ! selinux_enabled)
+ {
+ error (0, 0, _("WARNING: ignoring --context (-Z); "
+ "this kernel is not SELinux-enabled"));
+ break;
+ }
+ scontext = optarg;
+ use_default_selinux_context = false;
+ break;
+ case_GETOPT_HELP_CHAR;
+ case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
+ default:
+ usage (EXIT_FAILURE);
+ }
+ }
+
+ /* Check for invalid combinations of arguments. */
+ if (dir_arg && strip_files)
+ error (EXIT_FAILURE, 0,
+ _("the strip option may not be used when installing a directory"));
+ if (dir_arg && target_directory)
+ error (EXIT_FAILURE, 0,
+ _("target directory not allowed when installing a directory"));
+
+ if (x.preserve_security_context && scontext != NULL)
+ error (EXIT_FAILURE, 0,
+ _("cannot force target context to %s and preserve it"),
+ quote (scontext));
+
+ if (backup_suffix_string)
+ simple_backup_suffix = xstrdup (backup_suffix_string);
+
+ x.backup_type = (make_backups
+ ? xget_version (_("backup type"),
+ version_control_string)
+ : no_backups);
+
+ if (scontext && setfscreatecon (scontext) < 0)
+ error (EXIT_FAILURE, errno,
+ _("failed to set default file creation context to %s"),
+ quote (scontext));
+
+ n_files = argc - optind;
+ file = argv + optind;
+
+ if (n_files <= ! (dir_arg || target_directory))
+ {
+ if (n_files <= 0)
+ error (0, 0, _("missing file operand"));
+ else
+ error (0, 0, _("missing destination file operand after %s"),
+ quote (file[0]));
+ usage (EXIT_FAILURE);
+ }
+
+ if (no_target_directory)
+ {
+ if (target_directory)
+ error (EXIT_FAILURE, 0,
+ _("cannot combine --target-directory (-t) "
+ "and --no-target-directory (-T)"));
+ if (2 < n_files)
+ {
+ error (0, 0, _("extra operand %s"), quote (file[2]));
+ usage (EXIT_FAILURE);
+ }
+ }
+ else if (! (dir_arg || target_directory))
+ {
+ if (2 <= n_files && target_directory_operand (file[n_files - 1]))
+ target_directory = file[--n_files];
+ else if (2 < n_files)
+ error (EXIT_FAILURE, 0, _("target %s is not a directory"),
+ quote (file[n_files - 1]));
+ }
+
+ if (specified_mode)
+ {
+ struct mode_change *change = mode_compile (specified_mode);
+ if (!change)
+ error (EXIT_FAILURE, 0, _("invalid mode %s"), quote (specified_mode));
+ mode = mode_adjust (0, false, 0, change, NULL);
+ dir_mode = mode_adjust (0, true, 0, change, &dir_mode_bits);
+ free (change);
+ }
+
+ if (strip_program_specified && !strip_files)
+ error (0, 0, _("WARNING: ignoring --strip-program option as -s option was "
+ "not specified"));
+
+ if (copy_only_if_needed && x.preserve_timestamps)
+ {
+ error (0, 0, _("options --compare (-C) and --preserve-timestamps are "
+ "mutually exclusive"));
+ usage (EXIT_FAILURE);
+ }
+
+ if (copy_only_if_needed && strip_files)
+ {
+ error (0, 0, _("options --compare (-C) and --strip are mutually "
+ "exclusive"));
+ usage (EXIT_FAILURE);
+ }
+
+ if (copy_only_if_needed && extra_mode (mode))
+ error (0, 0, _("the --compare (-C) option is ignored when you"
+ " specify a mode with non-permission bits"));
+
+ get_ids ();
+
+ if (dir_arg)
+ exit_status = savewd_process_files (n_files, file, process_dir, &x);
+ else
+ {
+ /* FIXME: it's a little gross that this initialization is
+ required by copy.c::copy. */
+ hash_init ();
+
+ if (!target_directory)
+ {
+ if (! (mkdir_and_install
+ ? install_file_in_file_parents (file[0], file[1], &x)
+ : install_file_in_file (file[0], file[1], &x)))
+ exit_status = EXIT_FAILURE;
+ }
+ else
+ {
+ int i;
+ dest_info_init (&x);
+ for (i = 0; i < n_files; i++)
+ if (! install_file_in_dir (file[i], target_directory, &x))
+ exit_status = EXIT_FAILURE;
+ }
+ }
+
+ exit (exit_status);
+}
projects / platform / upstream / coreutils.git / blobdiff