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-rw-r--r--winsup/utils/mount.cc570
1 files changed, 0 insertions, 570 deletions
diff --git a/winsup/utils/mount.cc b/winsup/utils/mount.cc
deleted file mode 100644
index 5e1b42d36..000000000
--- a/winsup/utils/mount.cc
+++ /dev/null
@@ -1,570 +0,0 @@
-/* mount.cc
-
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005,
- 2008, 2009, 2010 Red Hat, Inc.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license. Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include <stdio.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <mntent.h>
-#include <windows.h>
-#include <sys/cygwin.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <dirent.h>
-#include "path.h"
-
-#ifdef errno
-#undef errno
-#endif
-#include <errno.h>
-
-#define NT_MAX_PATH 32768
-
-#define EXEC_FLAGS (MOUNT_EXEC | MOUNT_NOTEXEC | MOUNT_CYGWIN_EXEC)
-
-static void mount_entries (void);
-static void show_mounts (void);
-static void show_cygdrive_info (void);
-static void change_cygdrive_prefix (const char *new_prefix, int flags);
-static int mount_already_exists (const char *posix_path, int flags);
-
-// static short create_missing_dirs = FALSE;
-static bool force = false;
-
-static const char version[] = "$Revision$";
-static const char *progname;
-
-static void
-error (const char *path)
-{
- fprintf (stderr, "%s: %s: %s\n", progname, path,
- (errno == EMFILE) ? "Too many mount entries" : strerror (errno));
- exit (1);
-}
-
-/* FIXME: do_mount should also print a warning message if the dev arg
- is a non-existent Win32 path. */
-
-static void
-do_mount (const char *dev, const char *where, int flags)
-{
- struct stat statbuf;
- int statres;
-
- statres = stat (where, &statbuf);
-
-#if 0
- if (statres == -1)
- {
- /* FIXME: this'll fail if mount dir is missing any parent dirs */
- if (create_missing_dirs == TRUE)
- {
- if (mkdir (where, 0755) == -1)
- fprintf (stderr, "Warning: unable to create %s!\n", where);
- else
- statres = 0; /* Pretend stat succeeded if we could mkdir. */
- }
- }
-#endif
-
- if (statres == -1)
- {
- if (!force)
- fprintf (stderr, "%s: warning - %s does not exist.\n", progname, where);
- }
- else if (!(statbuf.st_mode & S_IFDIR))
- {
- if (!force)
- fprintf (stderr, "%s: warning: %s is not a directory.\n", progname, where);
- }
-
- if (!force && !(flags & (EXEC_FLAGS | MOUNT_BIND)) && strlen (dev))
- {
- char devtmp[1 + 2 * strlen (dev)];
- strcpy (devtmp, dev);
- char c = strchr (devtmp, '\0')[-1];
- if (c == '/' || c == '\\')
- strcat (devtmp, ".");
- /* Use a curious property of Windows which allows the use of \.. even
- on non-directory paths. */
- for (const char *p = dev; (p = strpbrk (p, "/\\")); p++)
- strcat (devtmp, "\\..");
- strcat (devtmp, "\\");
- if (GetDriveType (devtmp) == DRIVE_REMOTE)
- {
- fprintf (stderr, "%s: defaulting to 'notexec' mount option for speed since native path\n"
- "%*creferences a remote share. Use '-f' option to override.\n", progname,
- strlen(progname) + 2, ' ');
- flags |= MOUNT_NOTEXEC;
- }
- }
-
- if (mount (dev, where, flags))
- error (where);
-}
-
-static void
-from_fstab (bool user)
-{
- char path[PATH_MAX];
- char buf[65536];
- mnt_t *m = mount_table + max_mount_entry;
-
- strcpy (path, "/etc/fstab");
- if (user)
- {
- strcat (path, ".d/");
- strcat (path, getlogin ());
- }
- FILE *fh = fopen (path, "rt");
- if (!fh)
- return;
- while (fgets (buf, 65536, fh))
- {
- char *c = strrchr (buf, '\n');
- if (c)
- *c = '\0';
- if (from_fstab_line (m, buf, user))
- ++m;
- }
- max_mount_entry = m - mount_table;
- fclose (fh);
-}
-
-static void
-do_mount_from_fstab (const char *where)
-{
- force = true;
- /* Read fstab entries. */
- from_fstab (false);
- from_fstab (true);
- /* Loop through fstab entries and see if it matches `where'. If `where'
- is NULL, all entries match. */
- bool exists = false;
- for (mnt_t *m = mount_table; m - mount_table < max_mount_entry; ++m)
- if (!where || !strcmp (where, m->posix))
- {
- if (m->flags & MOUNT_CYGDRIVE)
- {
- /* Get the cygdrive info */
- char user[MAX_PATH];
- char system[MAX_PATH];
- char user_flags[MAX_PATH];
- char system_flags[MAX_PATH];
-
- exists = true;
- cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system, user_flags,
- system_flags);
- if ((*user && strcmp (user, m->posix) != 0)
- || (*system && strcmp (system, m->posix) != 0))
- if (mount (NULL, m->posix, m->flags))
- error (m->posix);
- }
- else
- {
- exists = true;
- /* Compare with existing mount table. If the entry doesn't exist,
- mount it. */
- FILE *mt = setmntent ("/-not-used-", "r");
- struct mntent *p;
-
- while ((p = getmntent (mt)) != NULL)
- if (!strcmp (m->posix, p->mnt_dir))
- break;
- if (!p)
- do_mount (m->native, m->posix, m->flags);
- endmntent (mt);
- if (where)
- break;
- }
- }
- if (!exists && where)
- fprintf (stderr,
- "%s: can't find %s in /etc/fstab or in /etc/fstab.d/$USER\n",
- progname, where);
-}
-
-static struct option longopts[] =
-{
- {"all", no_argument, NULL, 'a'},
- {"change-cygdrive-prefix", no_argument, NULL, 'c'},
- {"force", no_argument, NULL, 'f'},
- {"help", no_argument, NULL, 'h' },
- {"mount-entries", no_argument, NULL, 'm'},
- {"options", required_argument, NULL, 'o'},
- {"show-cygdrive-prefix", no_argument, NULL, 'p'},
- {"version", no_argument, NULL, 'v'},
- {NULL, 0, NULL, 0}
-};
-
-static char opts[] = "acfhmpvo:";
-
-static void
-usage (FILE *where = stderr)
-{
- char *options;
-
- fprintf (where, "Usage: %s [OPTION] [<win32path> <posixpath>]\n\
- %s -a\n\
- %s <posixpath>\n\
-Display information about mounted filesystems, or mount a filesystem\n\
-\n\
- -a, --all mount all filesystems mentioned in fstab\n\
- -c, --change-cygdrive-prefix change the cygdrive path prefix to <posixpath>\n\
- -f, --force force mount, don't warn about missing mount\n\
- point directories\n\
- -h, --help output usage information and exit\n\
- -m, --mount-entries write fstab entries to replicate mount points\n\
- and cygdrive prefixes\n\
- -o, --options X[,X...] specify mount options\n\
- -p, --show-cygdrive-prefix show user and/or system cygdrive path prefix\n\
- -v, --version output version information and exit\n\n",
- progname, progname, progname);
- if (!cygwin_internal (CW_LST_MNT_OPTS, &options))
- fprintf (where, "Valid options are: %s\n\n", options);
- exit (where == stderr ? 1 : 0);
-}
-
-static void
-print_version ()
-{
- const char *v = strchr (version, ':');
- int len;
- if (!v)
- {
- v = "?";
- len = 1;
- }
- else
- {
- v += 2;
- len = strchr (v, ' ') - v;
- }
- printf ("\
-%s (cygwin) %.*s\n\
-Filesystem Utility\n\
-Copyright 1996-2010 Red Hat, Inc.\n\
-Compiled on %s\n\
-", progname, len, v, __DATE__);
-}
-
-static char *
-concat3 (char *a, const char *b, const char *c)
-{
- size_t totlen = strlen (a) + strlen (b) + strlen (c) + 1;
- a = (char *) realloc (a, totlen);
- return strcat (strcat (a, b), c);
-}
-
-int
-main (int argc, char **argv)
-{
- int i;
- int flags = MOUNT_BINARY;
- char *options = strdup ("");
- enum do_what
- {
- nada,
- saw_change_cygdrive_prefix,
- saw_show_cygdrive_prefix,
- saw_mount_commands,
- saw_mount_all,
- } do_what = nada;
-
- progname = strrchr (argv[0], '/');
- if (progname == NULL)
- progname = strrchr (argv[0], '\\');
- if (progname == NULL)
- progname = argv[0];
- else
- progname++;
-
- if (argc == 1)
- {
- show_mounts ();
- exit (0);
- }
-
- while ((i = getopt_long (argc, argv, opts, longopts, NULL)) != EOF)
- switch (i)
- {
- case 'a':
- if (do_what == nada)
- do_what = saw_mount_all;
- else
- usage ();
- break;
- case 'c':
- if (do_what == nada)
- do_what = saw_change_cygdrive_prefix;
- else
- usage ();
- break;
- case 'f':
- force = true;
- break;
- case 'h':
- usage (stdout);
- break;
- case 'm':
- if (do_what == nada)
- do_what = saw_mount_commands;
- else
- usage ();
- break;
- case 'o':
- if (do_what == saw_mount_all)
- usage ();
- else if (*options)
- options = concat3 (options, ",", optarg);
- else
- options = strdup (optarg);
- break;
- case 'p':
- if (do_what == nada)
- do_what = saw_show_cygdrive_prefix;
- else
- usage ();
- break;
- case 'v':
- print_version ();
- return 0;
- break;
- default:
- usage ();
- }
-
- if (cygwin_internal (CW_CVT_MNT_OPTS, &options, &flags))
- {
- fprintf (stderr, "%s: invalid option - '%s'\n", progname, options);
- exit (1);
- }
-
- if (flags & MOUNT_NOTEXEC && flags & (MOUNT_EXEC | MOUNT_CYGWIN_EXEC))
- {
- fprintf (stderr, "%s: invalid combination of executable options\n", progname);
- exit (1);
- }
-
- cygwin_internal (CW_SET_DOS_FILE_WARNING, false);
-
- argc--;
- switch (do_what)
- {
- case saw_change_cygdrive_prefix:
- if (optind != argc)
- usage ();
- change_cygdrive_prefix (argv[optind], flags);
- break;
- case saw_show_cygdrive_prefix:
- if (optind <= argc)
- usage ();
- show_cygdrive_info ();
- break;
- case saw_mount_commands:
- if (optind <= argc)
- usage ();
- mount_entries ();
- break;
- case saw_mount_all:
- if (optind <= argc)
- usage ();
- do_mount_from_fstab (NULL);
- break;
- default:
- if (optind == argc)
- do_mount_from_fstab (argv[optind]);
- else if (optind != (argc - 1))
- {
- fprintf (stderr, "%s: too many arguments\n", progname);
- usage ();
- }
- else if (force || !mount_already_exists (argv[optind + 1], flags))
- do_mount (argv[optind], argv[optind + 1], flags);
- else
- {
- errno = EBUSY;
- error (argv[optind + 1]);
- }
- }
-
- /* NOTREACHED */
- return 0;
-}
-
-static char *
-convert_spaces (char *tgt, const char *src)
-{
- char *tp, *spacep;
- const char *sp;
-
- tp = tgt;
- for (sp = src; (spacep = strchr (sp, ' ')); sp = spacep + 1)
- {
- tp = stpncpy (tp, sp, spacep - sp);
- tp = stpcpy (tp, "\\040");
- }
- stpcpy (tp, sp);
- return tgt;
-}
-
-static void
-mount_entries (void)
-{
- FILE *m = setmntent ("/-not-used-", "r");
- struct mntent *p;
- const char *format_mnt = "%s %s %s %s 0 0\n";
- const char *format_cyg = "none %s cygdrive %s 0 0\n";
-
- // write fstab entries for normal mount points
- while ((p = getmntent (m)) != NULL)
- // Only list non-cygdrives and non-automounts
- if (!strstr (p->mnt_opts, ",noumount") && !strstr (p->mnt_opts, ",auto"))
- {
- char fsname[NT_MAX_PATH], dirname[NT_MAX_PATH];
- /* Drop the "bind" option since it can't be reverted. */
- char *c = strstr (p->mnt_opts, ",bind");
- if (c)
- memmove (c, c + 5, strlen (c + 5) + 1);
- printf (format_mnt, convert_spaces (fsname, p->mnt_fsname),
- convert_spaces (dirname, p->mnt_dir),
- p->mnt_type, p->mnt_opts);
- }
- endmntent (m);
-
- // write fstab entry for cygdrive prefix
- m = setmntent ("/-not-used-", "r");
- while ((p = getmntent (m)) != NULL)
- {
- char *noumount;
- if ((noumount = strstr (p->mnt_opts, ",noumount")))
- {
- char dirname[NT_MAX_PATH];
- char opts[strlen (p->mnt_opts) + 1];
-
- convert_spaces (dirname, p->mnt_dir);
- // remove trailing slash
- char *ls = strrchr (dirname, '/');
- if (ls)
- {
- // last slash == leading slash? cygdrive prefix == "/"
- if (ls == dirname)
- ++ls;
- *ls = '\0';
- }
- *stpncpy (opts, p->mnt_opts, noumount - p->mnt_opts) = '\0';
- printf (format_cyg, dirname, opts);
- break;
- }
- }
- endmntent (m);
-
- exit(0);
-}
-
-static void
-show_mounts (void)
-{
- FILE *m = setmntent ("/-not-used-", "r");
- struct mntent *p;
- const char *format = "%s on %s type %s (%s)\n";
-
- // printf (format, "Device", "Directory", "Type", "Flags");
- while ((p = getmntent (m)) != NULL)
- printf (format, p->mnt_fsname, p->mnt_dir, p->mnt_type, p->mnt_opts);
- endmntent (m);
-}
-
-/* Return 1 if mountpoint from the same registry area is already in
- mount table. Otherwise return 0. */
-static int
-mount_already_exists (const char *posix_path, int flags)
-{
- int found_matching = 0;
-
- FILE *m = setmntent ("/-not-used-", "r");
- struct mntent *p;
-
- while ((p = getmntent (m)) != NULL)
- {
- /* if the paths match, and they're both the same type of mount. */
- if (strcmp (p->mnt_dir, posix_path) == 0)
- {
- if (p->mnt_type[0] == 'u')
- {
- if (!(flags & MOUNT_SYSTEM)) /* both current_user */
- found_matching = 1;
- else
- fprintf (stderr,
- "%s: warning: system mount point of '%s' "
- "will always be masked by user mount.\n",
- progname, posix_path);
- break;
- }
- else if (p->mnt_type[0] == 's')
- {
- if (flags & MOUNT_SYSTEM) /* both system */
- found_matching = 1;
- else
- fprintf (stderr,
- "%s: warning: user mount point of '%s' "
- "masks system mount.\n",
- progname, posix_path);
- break;
- }
- else
- {
- fprintf (stderr, "%s: warning: couldn't determine mount type.\n", progname);
- break;
- }
- }
- }
- endmntent (m);
-
- return found_matching;
-}
-
-/* change_cygdrive_prefix: Change the cygdrive prefix */
-static void
-change_cygdrive_prefix (const char *new_prefix, int flags)
-{
- flags |= MOUNT_CYGDRIVE;
-
- if (mount (NULL, new_prefix, flags))
- error (new_prefix);
-
- exit (0);
-}
-
-/* show_cygdrive_info: Show the user and/or cygdrive info, i.e., prefix and
- flags.*/
-static void
-show_cygdrive_info ()
-{
- /* Get the cygdrive info */
- char user[MAX_PATH];
- char system[MAX_PATH];
- char user_flags[MAX_PATH];
- char system_flags[MAX_PATH];
- cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system, user_flags,
- system_flags);
-
- /* Display the user and system cygdrive path prefix, if necessary
- (ie, not empty) */
- const char *format = "%-18s %-11s %s\n";
- printf (format, "Prefix", "Type", "Flags");
- if (strlen (user) > 0)
- printf (format, user, "user", user_flags);
- if (strlen (system) > 0)
- printf (format, system, "nouser", system_flags);
-
- exit (0);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-27 00:34:27 +0300