projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6a056086 | 1 | /* vfs_xxx.c 4.3 82/12/28 */ |
| 2a9ead0d BJ |
2 | |
| 3 | #include "../h/param.h" | |
| 4 | #include "../h/systm.h" | |
| 5 | #include "../h/inode.h" | |
| 6 | #include "../h/fs.h" | |
| 7 | #include "../h/mount.h" | |
| 8 | #include "../h/dir.h" | |
| 9 | #include "../h/user.h" | |
| 10 | #include "../h/buf.h" | |
| 11 | #include "../h/conf.h" | |
| 12 | ||
| 13 | /* | |
| 14 | * Return the next character fromt the | |
| 15 | * kernel string pointed at by dirp. | |
| 16 | */ | |
| 17 | schar() | |
| 18 | { | |
| 19 | return (*u.u_dirp++ & 0377); | |
| 20 | } | |
| 21 | ||
| 22 | /* | |
| 23 | * Return the next character from the | |
| 24 | * user string pointed at by dirp. | |
| 25 | */ | |
| 26 | uchar() | |
| 27 | { | |
| 28 | register c; | |
| 29 | ||
| 30 | c = fubyte(u.u_dirp++); | |
| 31 | if (c == -1) { | |
| 32 | u.u_error = EFAULT; | |
| 33 | c = 0; | |
| 34 | } | |
| 35 | return (c); | |
| 36 | } | |
| 1139f919 SL |
37 | |
| 38 | #ifndef NOCOMPAT | |
| 39 | #include "../h/file.h" | |
| 40 | #include "../h/nami.h" | |
| 41 | #include "../h/descrip.h" | |
| 42 | #include "../h/kernel.h" | |
| 43 | ||
| 44 | /* | |
| 45 | * Oh, how backwards compatibility is ugly!!! | |
| 46 | */ | |
| 47 | struct ostat { | |
| 48 | dev_t ost_dev; | |
| 6a056086 | 49 | u_short ost_ino; |
| 1139f919 SL |
50 | u_short ost_mode; |
| 51 | short ost_nlink; | |
| 52 | short ost_uid; | |
| 53 | short ost_gid; | |
| 54 | dev_t ost_rdev; | |
| 55 | int ost_size; | |
| 56 | int ost_atime; | |
| 57 | int ost_mtime; | |
| 58 | int ost_ctime; | |
| 59 | }; | |
| 60 | ||
| 61 | /* | |
| 62 | * The old fstat system call. | |
| 63 | */ | |
| 64 | ofstat() | |
| 65 | { | |
| 66 | register struct file *fp; | |
| 67 | register struct a { | |
| 68 | int fd; | |
| 69 | struct ostat *sb; | |
| 70 | } *uap; | |
| 71 | ||
| 72 | uap = (struct a *)u.u_ap; | |
| 73 | fp = getf(uap->fd); | |
| 74 | if (fp == NULL) | |
| 75 | return; | |
| 76 | if (fp->f_type == DTYPE_SOCKET) { | |
| 77 | struct ostat ub; | |
| 78 | ||
| 79 | bzero((caddr_t)&ub, sizeof (ub)); | |
| 80 | (void) copyout((caddr_t)&ub, (caddr_t)uap->sb, sizeof (ub)); | |
| 81 | } else | |
| 82 | ostat1(fp->f_inode, uap->sb); | |
| 83 | } | |
| 84 | ||
| 85 | /* | |
| 86 | * Old stat system call. This version follows links. | |
| 87 | */ | |
| 88 | ostat() | |
| 89 | { | |
| 90 | register struct inode *ip; | |
| 91 | register struct a { | |
| 92 | char *fname; | |
| 93 | struct ostat *sb; | |
| 94 | } *uap; | |
| 95 | ||
| 96 | uap = (struct a *)u.u_ap; | |
| 97 | ip = namei(uchar, LOOKUP, 1); | |
| 98 | if (ip == NULL) | |
| 99 | return; | |
| 100 | ostat1(ip, uap->sb); | |
| 101 | iput(ip); | |
| 102 | } | |
| 103 | ||
| 104 | ostat1(ip, ub) | |
| 105 | register struct inode *ip; | |
| 106 | struct ostat *ub; | |
| 107 | { | |
| 108 | struct ostat ds; | |
| 109 | ||
| 110 | IUPDAT(ip, &time, &time, 0); | |
| 111 | /* | |
| 112 | * Copy from inode table | |
| 113 | */ | |
| 114 | ds.ost_dev = ip->i_dev; | |
| 115 | ds.ost_ino = (short)ip->i_number; | |
| 116 | ds.ost_mode = (u_short)ip->i_mode; | |
| 117 | ds.ost_nlink = ip->i_nlink; | |
| 118 | ds.ost_uid = (short)ip->i_uid; | |
| 119 | ds.ost_gid = (short)ip->i_gid; | |
| 120 | ds.ost_rdev = (dev_t)ip->i_rdev; | |
| 121 | ds.ost_size = (int)ip->i_size; | |
| 122 | ds.ost_atime = (int)ip->i_atime; | |
| 123 | ds.ost_mtime = (int)ip->i_mtime; | |
| 124 | ds.ost_ctime = (int)ip->i_ctime; | |
| 125 | if (copyout((caddr_t)&ds, (caddr_t)ub, sizeof(ds)) < 0) | |
| 126 | u.u_error = EFAULT; | |
| 127 | } | |
| 128 | #endif |