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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | |
| 2 | #include <fs/types.h> |
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| 3 | #include <fs/errno.h> |
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| 4 | #include <fs/task.h> |
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| 5 | #include <fs/util.h> |
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| 6 | #include <fs/maccess.h> |
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| 7 | #include <fs/fcntl.h> |
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| 8 | |||
| 9 | #include "file.h" |
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| 10 | #include "dentry.h" |
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| 11 | #include "fs.h" |
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| 12 | |||
| 13 | /* |
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| 14 | this are from bits/fcntl.h |
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| 15 | if they are changed then this code must be rewritten! |
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| 16 | #define F_DUPFD 0 |
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| 17 | #define F_GETFD 1 |
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| 18 | #define F_SETFD 2 |
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| 19 | #define F_GETFL 3 |
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| 20 | #define F_SETFL 4 |
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| 21 | #define F_GETLK 5 |
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| 22 | #define F_SETLK 6 |
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| 23 | #define F_SETLKW 7 |
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| 24 | */ |
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| 25 | |||
| 26 | int dupfd(__pid_t pid, int fildes, void *ptr) |
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| 27 | { |
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| 28 | int res; |
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| 29 | res=__duplicate_fd(pid,fildes,(int)ptr); |
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| 30 | unlock_desctable(pid); |
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| 31 | if (res) return -EMFILE; |
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| 32 | return EOK; |
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| 33 | } |
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| 34 | |||
| 35 | int getfd(__pid_t pid, int fildes, void *ptr) |
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| 36 | { |
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| 37 | int res; |
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| 38 | res=*fildesflags_ptr(pid,fildes); |
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| 39 | unlock_desctable(pid); |
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| 40 | return res; |
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| 41 | } |
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| 42 | |||
| 43 | int setfd(__pid_t pid, int fildes, void *ptr) |
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| 44 | { |
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| 45 | *fildesflags_ptr(pid,fildes)=((int)ptr)&FD_CLOEXEC; |
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| 46 | unlock_desctable(pid); |
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| 47 | return EOK; |
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| 48 | } |
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| 49 | |||
| 50 | int getfl(__pid_t pid, int fildes, void *ptr) |
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| 51 | { |
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| 52 | int res; |
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| 53 | res=*fildesfflags_ptr(pid,fildes); |
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| 54 | unlock_desctable(pid); |
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| 55 | return res; |
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| 56 | } |
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| 57 | |||
| 58 | int setfl(__pid_t pid, int fildes, void *ptr) |
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| 59 | { |
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| 60 | *fildesfflags_ptr(pid,fildes)=((int)ptr)& |
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| 61 | (O_APPEND|O_DSYNC|O_NONBLOCK|O_RSYNC|O_SYNC); |
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| 62 | unlock_desctable(pid); |
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| 63 | return EOK; |
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| 64 | } |
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| 65 | |||
| 66 | int dummy(__pid_t pid, int fildes, void *ptr) |
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| 67 | { |
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| 68 | unlock_desctable(pid); |
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| 69 | return -EINVAL; |
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| 70 | } |
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| 71 | |||
| 72 | static struct { |
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| 73 | int (*f)(__pid_t pid, int fildes, void *ptr); |
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| 74 | } func[]={ |
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| 75 | {dupfd}, |
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| 76 | {getfd}, |
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| 77 | {setfd}, |
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| 78 | {getfl}, |
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| 79 | {setfl}, |
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| 80 | {dummy}, |
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| 81 | {dummy}, |
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| 82 | {dummy} |
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| 83 | }; |
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| 84 | |||
| 85 | int k_fcntl(int fildes,int cmd,void *ptr) |
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| 86 | { |
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| 87 | __pid_t pid; |
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| 88 | |||
| 89 | call_to_fs(); |
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| 90 | |||
| 91 | pid=__get_pid(); |
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| 92 | lock_desctable(pid); |
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| 93 | if (!__isvalid_fd(pid,fildes)) { |
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| 94 | lock_desctable(pid); |
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| 95 | return_from_fs(-EBADF); |
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| 96 | } |
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| 97 | |||
| 98 | if (cmd<F_DUPFD||cmd>=F_SETLKW) |
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| 99 | return_from_fs(-ENOSYS); |
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| 100 | |||
| 101 | return_from_fs(func[cmd].f(pid,fildes,ptr)); |
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| 102 | } |