2 * <fstab.h> wrapper functions.
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004-2005 Jonathan Pryor
18 #if defined (HAVE_CHECKLIST_H)
19 #include <checklist.h>
20 #elif defined (HAVE_FSTAB_H)
22 #endif /* def HAVE_FSTAB_H */
24 #ifdef HAVE_SYS_VFSTAB_H
25 #include <sys/vfstab.h>
26 #endif /* def HAVE_SYS_VFSTAB_H */
30 struct Mono_Posix_Syscall__Fstab {
31 char *fs_spec; /* block device name */
32 char *fs_file; /* mount point */
33 char *fs_vfstype; /* filesystem type */
34 char *fs_mntops; /* mount options */
35 char *fs_type; /* rw/rq/ro/sw/xx option */
36 int fs_freq; /* dump frequency, in days */
37 int fs_passno; /* pass number on parallel dump */
42 #ifdef HAVE_CHECKLIST_H
44 typedef struct checklist mph_fstab;
48 offsetof (struct checklist, fs_spec),
49 offsetof (struct checklist, fs_dir),
50 offsetof (struct checklist, fs_type)
54 mph_fstab_offsets[] = {
55 offsetof (struct Mono_Posix_Syscall__Fstab, fs_spec),
56 offsetof (struct Mono_Posix_Syscall__Fstab, fs_file),
57 offsetof (struct Mono_Posix_Syscall__Fstab, fs_type)
60 #elif defined (HAVE_FSTAB_H)
62 typedef struct fstab mph_fstab;
66 offsetof (struct fstab, fs_spec),
67 offsetof (struct fstab, fs_file),
68 offsetof (struct fstab, fs_vfstype),
69 offsetof (struct fstab, fs_mntops),
70 offsetof (struct fstab, fs_type)
74 mph_fstab_offsets[] = {
75 offsetof (struct Mono_Posix_Syscall__Fstab, fs_spec),
76 offsetof (struct Mono_Posix_Syscall__Fstab, fs_file),
77 offsetof (struct Mono_Posix_Syscall__Fstab, fs_vfstype),
78 offsetof (struct Mono_Posix_Syscall__Fstab, fs_mntops),
79 offsetof (struct Mono_Posix_Syscall__Fstab, fs_type)
82 #endif /* def HAVE_FSTAB_H */
84 #if defined (HAVE_CHECKLIST_H) || defined (HAVE_FSTAB_H)
87 * Copy the native `fstab' structure to it's managed representation.
89 * To minimize separate mallocs, all the strings are allocated within the same
90 * memory block (stored in _fs_buf_).
93 copy_fstab (struct Mono_Posix_Syscall__Fstab *to, mph_fstab *from)
97 memset (to, 0, sizeof(*to));
99 buf = _mph_copy_structure_strings (to, mph_fstab_offsets,
100 from, fstab_offsets, sizeof(fstab_offsets)/sizeof(fstab_offsets[0]));
102 to->fs_freq = from->fs_freq;
103 to->fs_passno = from->fs_passno;
113 #endif /* def HAVE_CHECKLIST_H || def HAVE_FSTAB_H */
115 #ifdef HAVE_SYS_VFSTAB_H
118 * Solaris doesn't provide <fstab.h> but has equivalent functionality in
119 * <sys/fstab.h> via getvfsent(3C) and company.
122 typedef struct vfstab mph_fstab;
126 offsetof (struct vfstab, vfs_special),
127 offsetof (struct vfstab, vfs_mountp),
128 offsetof (struct vfstab, vfs_fstype),
129 offsetof (struct vfstab, vfs_mntopts)
133 mph_fstab_offsets[] = {
134 offsetof (struct Mono_Posix_Syscall__Fstab, fs_spec),
135 offsetof (struct Mono_Posix_Syscall__Fstab, fs_file),
136 offsetof (struct Mono_Posix_Syscall__Fstab, fs_vfstype),
137 offsetof (struct Mono_Posix_Syscall__Fstab, fs_mntops)
141 * Copy the native `vfstab' structure to it's managed representation.
143 * To minimize separate mallocs, all the strings are allocated within the same
144 * memory block (stored in _fs_buf_).
147 copy_fstab (struct Mono_Posix_Syscall__Fstab *to, struct vfstab *from)
151 memset (to, 0, sizeof(*to));
153 buf = _mph_copy_structure_strings (to, mph_fstab_offsets,
154 from, vfstab_offsets, sizeof(vfstab_offsets)/sizeof(vfstab_offsets[0]));
169 * Implement Linux/BSD getfsent(3) in terms of Solaris getvfsent(3C)...
177 etc_fstab = fopen ("/etc/vfstab", "r");
178 if (etc_fstab != NULL)
193 static struct vfstab*
197 r = getvfsent (etc_fstab, &cur_vfstab_entry);
199 return &cur_vfstab_entry;
203 static struct vfstab*
204 getfsfile (const char *mount_point)
208 if (etc_fstab == 0) {
210 if (setfsent () != 1)
214 r = getvfsfile (etc_fstab, &cur_vfstab_entry, (char*) mount_point);
218 return &cur_vfstab_entry;
222 static struct vfstab*
223 getfsspec (const char *special_file)
227 if (etc_fstab == 0) {
229 if (setfsent () != 1)
233 r = getvfsspec (etc_fstab, &cur_vfstab_entry, (char*) special_file);
237 return &cur_vfstab_entry;
241 #endif /* def HAVE_SYS_VFSTAB_H */
243 #if defined (HAVE_FSTAB_H) || defined (HAVE_CHECKPOINT_H) || defined (HAVE_SYS_VFSTAB_H)
246 Mono_Posix_Syscall_endfsent (void)
252 Mono_Posix_Syscall_getfsent (struct Mono_Posix_Syscall__Fstab *fsbuf)
265 if (copy_fstab (fsbuf, fs) == -1) {
273 Mono_Posix_Syscall_getfsfile (const char *mount_point,
274 struct Mono_Posix_Syscall__Fstab *fsbuf)
283 fs = getfsfile (mount_point);
287 if (copy_fstab (fsbuf, fs) == -1) {
295 Mono_Posix_Syscall_getfsspec (const char *special_file,
296 struct Mono_Posix_Syscall__Fstab *fsbuf)
305 fs = getfsspec (special_file);
309 if (copy_fstab (fsbuf, fs) == -1) {
317 Mono_Posix_Syscall_setfsent (void)
322 #endif /* def HAVE_FSTAB_H || def HAVE_CHECKPOINT_H || def HAVE_SYS_VFSTAB_H */