diff options
Diffstat (limited to 'winsup/utils/mount.cc')
-rw-r--r-- | winsup/utils/mount.cc | 471 |
1 files changed, 0 insertions, 471 deletions
diff --git a/winsup/utils/mount.cc b/winsup/utils/mount.cc deleted file mode 100644 index d4852e5..0000000 --- a/winsup/utils/mount.cc +++ /dev/null @@ -1,471 +0,0 @@ -/* mount.cc - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 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 <getopt.h> - -#ifdef errno -#undef errno -#endif -#include <errno.h> - -#define EXEC_FLAGS (MOUNT_EXEC | MOUNT_NOTEXEC | MOUNT_CYGWIN_EXEC) - -static void mount_commands (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 short 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; - char win32_path[MAX_PATH]; - int statres; - - cygwin_conv_to_win32_path (where, win32_path); - - statres = stat (win32_path, &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) && 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 '--no-executable' flag 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); - - exit (0); -} - -static struct option longopts[] = -{ - {"binary", no_argument, NULL, 'b'}, - {"change-cygdrive-prefix", no_argument, NULL, 'c'}, - {"cygwin-executable", no_argument, NULL, 'X'}, - {"executable", no_argument, NULL, 'x'}, - {"force", no_argument, NULL, 'f'}, - {"help", no_argument, NULL, 'h' }, - {"mount-commands", no_argument, NULL, 'm'}, - {"no-executable", no_argument, NULL, 'E'}, - {"show-cygdrive-prefix", no_argument, NULL, 'p'}, - {"system", no_argument, NULL, 's'}, - {"text", no_argument, NULL, 't'}, - {"user", no_argument, NULL, 'u'}, - {"version", no_argument, NULL, 'v'}, - {NULL, 0, NULL, 0} -}; - -static char opts[] = "bcfhmpstuvxEX"; - -static void -usage (FILE *where = stderr) -{ - fprintf (where, "Usage: %s [OPTION] [<win32path> <posixpath>]\n\ - -b, --binary (default) text files are equivalent to binary files\n\ - (newline = \\n)\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-commands write mount commands to replace user and\n\ - system mount points and cygdrive prefixes\n\ - -p, --show-cygdrive-prefix show user and/or system cygdrive path prefix\n\ - -s, --system (default) add system-wide mount point\n\ - -t, --text text files get \\r\\n line endings\n\ - -u, --user add user-only mount point\n\ - -v, --version output version information and exit\n\ - -x, --executable treat all files under mount point as executables\n\ - -E, --no-executable treat all files under mount point as \n\ - non-executables\n\ - -X, --cygwin-executable treat all files under mount point as cygwin\n\ - executables\n\ -", progname); - 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, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.\n\ -Compiled on %s\n\ -", progname, len, v, __DATE__); -} - -int -main (int argc, char **argv) -{ - int i; - int flags = MOUNT_BINARY; - int default_flag = MOUNT_SYSTEM; - enum do_what - { - nada, - saw_change_cygdrive_prefix, - saw_show_cygdrive_prefix, - saw_mount_commands - } 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 'b': - flags |= MOUNT_BINARY; - 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 'p': - if (do_what == nada) - do_what = saw_show_cygdrive_prefix; - else - usage (); - break; - case 's': - flags |= MOUNT_SYSTEM; - break; - case 't': - flags &= ~MOUNT_BINARY; - break; - case 'u': - flags &= ~MOUNT_SYSTEM; - default_flag = 0; - break; - case 'v': - print_version (); - return 0; - break; - case 'x': - flags |= MOUNT_EXEC; - break; - case 'E': - flags |= MOUNT_NOTEXEC; - break; - case 'X': - flags |= MOUNT_CYGWIN_EXEC; - break; - default: - usage (); - } - - if (flags & MOUNT_NOTEXEC && flags & (MOUNT_EXEC | MOUNT_CYGWIN_EXEC)) - { - fprintf (stderr, "%s: invalid combination of executable options\n", progname); - exit (1); - } - - argc--; - switch (do_what) - { - case saw_change_cygdrive_prefix: - if (optind != argc) - usage (); - change_cygdrive_prefix (argv[optind], flags | default_flag); - break; - case saw_show_cygdrive_prefix: - if (optind <= argc) - usage (); - show_cygdrive_info (); - break; - case saw_mount_commands: - if (optind <= argc) - usage (); - mount_commands (); - break; - default: - if (optind != (argc - 1)) - { - if (optind >= argc) - fprintf (stderr, "%s: not enough arguments\n", progname); - else - fprintf (stderr, "%s: too many arguments\n", progname); - usage (); - } - if (force || !mount_already_exists (argv[optind + 1], flags | default_flag)) - do_mount (argv[optind], argv[optind + 1], flags | default_flag); - else - { - errno = EBUSY; - error (argv[optind + 1]); - } - } - - /* NOTREACHED */ - return 0; -} - -static void -mount_commands (void) -{ - FILE *m = setmntent ("/-not-used-", "r"); - struct mntent *p; - char *c; - const char *format_mnt = "mount%s \"%s\" \"%s\"\n"; - const char *format_cyg = "mount%s --change-cygdrive-prefix \"%s\"\n"; - char opts[MAX_PATH]; - char user[MAX_PATH]; - char system[MAX_PATH]; - char user_flags[MAX_PATH]; - char system_flags[MAX_PATH]; - - // write mount commands for user and system mount points - while ((p = getmntent (m)) != NULL) { - // Only list non-cygdrives - if (!strstr (p->mnt_opts, ",noumount")) { - strcpy(opts, " -f"); - if (p->mnt_type[0] == 'u') - strcat (opts, " -u"); - else if (p->mnt_type[0] == 's') - strcat (opts, " -s"); - if (p->mnt_opts[0] == 'b') - strcat (opts, " -b"); - else if (p->mnt_opts[0] == 't') - strcat (opts, " -t"); - if (strstr (p->mnt_opts, ",exec")) - strcat (opts, " -x"); - if (strstr (p->mnt_opts, ",noexec")) - strcat (opts, " -E"); - while ((c = strchr (p->mnt_fsname, '\\')) != NULL) - *c = '/'; - printf (format_mnt, opts, p->mnt_fsname, p->mnt_dir); - } - } - endmntent (m); - - // write mount commands for cygdrive prefixes - cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system, user_flags, - system_flags); - if (strlen (user) > 0) { - strcpy (opts, " "); - if (user_flags[0] == 'b') - strcat (opts, " -b"); - else if (user_flags[0] == 't') - strcat (opts, " -t"); - printf (format_cyg, opts, user); - } - if (strlen (system) > 0) { - strcpy (opts, " -s"); - if (system_flags[0] == 'b') - strcat (opts, " -b"); - else if (system_flags[0] == 't') - strcat (opts, " -t"); - printf (format_cyg, opts, system); - } - - 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, "system", system_flags); - - exit (0); -} |