Rev 3 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | |
| 1063 | tullio | 2 | /* |
| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 16 | * |
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| 17 | */ |
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| 18 | |||
| 2 | pj | 19 | #include <fs/types.h> |
| 20 | #include <fs/errno.h> |
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| 21 | #include <fs/task.h> |
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| 22 | #include <fs/util.h> |
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| 23 | #include <fs/maccess.h> |
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| 24 | #include <fs/fcntl.h> |
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| 25 | |||
| 26 | #include "file.h" |
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| 27 | #include "dentry.h" |
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| 28 | #include "fs.h" |
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| 29 | |||
| 30 | /* |
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| 31 | this are from bits/fcntl.h |
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| 32 | if they are changed then this code must be rewritten! |
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| 33 | #define F_DUPFD 0 |
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| 34 | #define F_GETFD 1 |
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| 35 | #define F_SETFD 2 |
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| 36 | #define F_GETFL 3 |
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| 37 | #define F_SETFL 4 |
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| 38 | #define F_GETLK 5 |
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| 39 | #define F_SETLK 6 |
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| 40 | #define F_SETLKW 7 |
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| 41 | */ |
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| 42 | |||
| 43 | int dupfd(__pid_t pid, int fildes, void *ptr) |
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| 44 | { |
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| 45 | int res; |
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| 46 | res=__duplicate_fd(pid,fildes,(int)ptr); |
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| 47 | unlock_desctable(pid); |
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| 48 | if (res) return -EMFILE; |
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| 49 | return EOK; |
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| 50 | } |
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| 51 | |||
| 52 | int getfd(__pid_t pid, int fildes, void *ptr) |
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| 53 | { |
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| 54 | int res; |
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| 55 | res=*fildesflags_ptr(pid,fildes); |
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| 56 | unlock_desctable(pid); |
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| 57 | return res; |
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| 58 | } |
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| 59 | |||
| 60 | int setfd(__pid_t pid, int fildes, void *ptr) |
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| 61 | { |
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| 62 | *fildesflags_ptr(pid,fildes)=((int)ptr)&FD_CLOEXEC; |
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| 63 | unlock_desctable(pid); |
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| 64 | return EOK; |
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| 65 | } |
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| 66 | |||
| 67 | int getfl(__pid_t pid, int fildes, void *ptr) |
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| 68 | { |
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| 69 | int res; |
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| 70 | res=*fildesfflags_ptr(pid,fildes); |
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| 71 | unlock_desctable(pid); |
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| 72 | return res; |
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| 73 | } |
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| 74 | |||
| 75 | int setfl(__pid_t pid, int fildes, void *ptr) |
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| 76 | { |
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| 77 | *fildesfflags_ptr(pid,fildes)=((int)ptr)& |
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| 78 | (O_APPEND|O_DSYNC|O_NONBLOCK|O_RSYNC|O_SYNC); |
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| 79 | unlock_desctable(pid); |
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| 80 | return EOK; |
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| 81 | } |
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| 82 | |||
| 83 | int dummy(__pid_t pid, int fildes, void *ptr) |
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| 84 | { |
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| 85 | unlock_desctable(pid); |
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| 86 | return -EINVAL; |
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| 87 | } |
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| 88 | |||
| 89 | static struct { |
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| 90 | int (*f)(__pid_t pid, int fildes, void *ptr); |
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| 91 | } func[]={ |
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| 92 | {dupfd}, |
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| 93 | {getfd}, |
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| 94 | {setfd}, |
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| 95 | {getfl}, |
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| 96 | {setfl}, |
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| 97 | {dummy}, |
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| 98 | {dummy}, |
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| 99 | {dummy} |
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| 100 | }; |
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| 101 | |||
| 102 | int k_fcntl(int fildes,int cmd,void *ptr) |
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| 103 | { |
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| 104 | __pid_t pid; |
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| 105 | |||
| 106 | call_to_fs(); |
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| 107 | |||
| 108 | pid=__get_pid(); |
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| 109 | lock_desctable(pid); |
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| 110 | if (!__isvalid_fd(pid,fildes)) { |
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| 111 | lock_desctable(pid); |
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| 112 | return_from_fs(-EBADF); |
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| 113 | } |
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| 114 | |||
| 115 | if (cmd<F_DUPFD||cmd>=F_SETLKW) |
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| 116 | return_from_fs(-ENOSYS); |
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| 117 | |||
| 118 | return_from_fs(func[cmd].f(pid,fildes,ptr)); |
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| 119 | } |