diff options
Diffstat (limited to 'winsup/utils/umount.cc')
| -rw-r--r-- | winsup/utils/umount.cc | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/winsup/utils/umount.cc b/winsup/utils/umount.cc new file mode 100644 index 0000000..c37e57a --- /dev/null +++ b/winsup/utils/umount.cc @@ -0,0 +1,173 @@ +/* umount.cc + + Copyright 1996, 1998, 1999 Cygnus Solutions. + +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 <string.h> +#include <sys/mount.h> +#include <mntent.h> + +static void remove_all_mounts (); +static void remove_all_automounts (); +static void remove_all_user_mounts (); +static void remove_all_system_mounts (); + +static const char *progname; + +static void +usage (void) +{ + fprintf (stderr, "Usage %s [-s] <posixpath>\n", progname); + fprintf (stderr, "-s = remove mount point from system-wide registry location\n"); + fprintf (stderr, "\n"); + fprintf (stderr, "--remove-all-mounts = remove all mounts\n"); + fprintf (stderr, "--remove-auto-mounts = remove all automatically mounted mounts\n"); + fprintf (stderr, "--remove-user-mounts = remove all mounts in the current user mount registry area, including auto mounts\n"); + fprintf (stderr, "--remove-system-mounts = Remove all mounts in the system-wide mount registry area\n"); + exit (1); +} + +int +main (int argc, char **argv) +{ + int i; + int flags = 0; + progname = argv[0]; + + if (argc == 1) + usage (); + + for (i = 1; i < argc; ++i) + { + if (argv[i][0] != '-') + break; + + if (strcmp (argv[i], "-s") == 0) + { + flags |= MOUNT_SYSTEM; + } + else if (strcmp (argv[i], "--remove-all-mounts") == 0) + { + remove_all_mounts (); + exit (0); + } + else if (strcmp (argv[i], "--remove-user-mounts") == 0) + { + remove_all_user_mounts (); + exit (0); + } + else if (strcmp (argv[i], "--remove-system-mounts") == 0) + { + remove_all_system_mounts (); + exit (0); + } + else if (strcmp (argv[i], "--remove-auto-mounts") == 0) + { + remove_all_automounts (); + exit (0); + } + else + usage (); + } + + if ((i + 1) != argc) + usage (); + + if (cygwin_umount (argv[i], flags) != 0) + { + perror ("umount"); + exit (1); + } + + return 0; +} + +/* remove_all_mounts: Unmount all mounts. */ +static void +remove_all_mounts () +{ + remove_all_user_mounts (); + remove_all_system_mounts (); +} + +/* remove_all_automounts: Unmount all automounts. */ +static void +remove_all_automounts () +{ + FILE *m = setmntent ("/-not-used-", "r"); + struct mntent *p; + + while ((p = getmntent (m)) != NULL) + { + /* Remove the mount if it's an automount. */ + if (strcmp (p->mnt_type, "user,auto") == 0) + { + cygwin_umount (p->mnt_dir, 0); + /* We've modified the table so we need to start over. */ + endmntent (m); + m = setmntent ("/-not-used-", "r"); + } + else if (strcmp (p->mnt_type, "system,auto") == 0) + { + cygwin_umount (p->mnt_dir, MOUNT_SYSTEM); + /* We've modified the table so we need to start over. */ + endmntent (m); + m = setmntent ("/-not-used-", "r"); + } + } + + endmntent (m); +} + +/* remove_all_user_mounts: Unmount all user mounts. */ +static void +remove_all_user_mounts () +{ + FILE *m = setmntent ("/-not-used-", "r"); + struct mntent *p; + int err; + + while ((p = getmntent (m)) != NULL) + { + /* Remove the mount if it's a user mount. */ + if (strncmp (p->mnt_type, "user", 4) == 0) + { + err = cygwin_umount (p->mnt_dir, 0); + + /* We've modified the table so we need to start over. */ + endmntent (m); + m = setmntent ("/-not-used-", "r"); + } + } + + endmntent (m); +} + +/* remove_all_system_mounts: Unmount all system mounts. */ +static void +remove_all_system_mounts () +{ + FILE *m = setmntent ("/-not-used-", "r"); + struct mntent *p; + + while ((p = getmntent (m)) != NULL) + { + /* Remove the mount if it's a system mount. */ + if (strncmp (p->mnt_type, "system", 6) == 0) + { + cygwin_umount (p->mnt_dir, MOUNT_SYSTEM); + + /* We've modified the table so we need to start over. */ + endmntent (m); + m = setmntent ("/-not-used-", "r"); + } + } + + endmntent (m); +} |