mirror of https://github.com/A2osX/A2osX.git
292 lines
5.1 KiB
Plaintext
292 lines
5.1 KiB
Plaintext
NEW
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AUTO 3,1
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*/--------------------------------------
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* # ChMod
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* change permissions of a file
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* ## C
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* `int chmod(const char *pathname, int mode);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
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* `>SYSCALL chmod`
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* ## RETURN VALUE
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*\--------------------------------------
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K.ChMod jsr PFT.CheckPath2
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bcs STAT.RET4
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jsr STAT.PM
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stz K.MLI.PARAMS+3+S.FIEX.ACL read mode
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>MLICALL MLI.ACL
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bcs .9
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>LDYA K.S.STAT+S.STAT.MODE
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>STYA K.MLI.PARAMS+3+S.FIEX.ACL.MOD
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lda #$57 write mode
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sta K.MLI.PARAMS+3+S.FIEX.ACL
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>MLICALL MLI.ACL
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.9 rts
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STAT.RET4 inc pStack
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STAT.RET3 inc pStack
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inc pStack
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inc pStack
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rts
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*/--------------------------------------
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* # FStat
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* Return information about a hFILE
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* ## C
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* `int fstat(short int hFILE, struct stat *statbuf);`
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* ## ASM
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* `>PUSHB hFILE`
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* `>PUSHW statbuf`
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* `>SYSCALL fstat`
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* ## RETURN VALUE
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*\--------------------------------------
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K.FStat ldy #2
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jsr PFT.CheckNodeY
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bcs STAT.RET3
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>PULLW K.Stat.Store.2+1
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>PULLA
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tax
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lda FILEs.hName-1,x get path
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jsr K.GetMemPtr
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jsr PFT.YAToMLIPATH
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jsr FS.Stat.203
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bcs STAT.RTS
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ldy #S.FD.REG.REF
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lda (pFD),y
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sta K.MLI.PARAMS+1
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>MLICALL MLI.GETEOF
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bcs STAT.RTS
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ldx #2
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.1 lda K.MLI.PARAMS+2,x
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sta K.S.STAT+S.STAT.SIZE,x
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dex
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bpl .1
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K.Stat.Store ldy #S.STAT-1
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K.Stat.Store.1 lda K.S.STAT,y
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K.Stat.Store.2 sta $ffff,y SELF MODIFIED
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dey
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bpl K.Stat.Store.1
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* clc
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STAT.RTS rts
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*/--------------------------------------
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* # Stat
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* Return information about a file
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* ## C
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* `int stat(const char *pathname, struct stat *statbuf);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW statbuf`
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* `>SYSCALL stat`
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* ## RETURN VALUE
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*\--------------------------------------
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K.Stat jsr PFT.CheckPath2
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bcs STAT.RET4 go discard statbuf
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>PULLW K.Stat.Store.2+1
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inc pStack
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inc pStack
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jsr FS.Stat
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bcc K.Stat.Store
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rts
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*/-------------------------------------
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* # MKDir
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* create a directory
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* ## C
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* `int mkdir(const char *pathname, int mode);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
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* `>SYSCALL mkdir`
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* ## RETURN VALUE
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* CC : success
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* CS : error
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* A = EC
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*\-------------------------------------
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K.MKDir jsr PFT.CheckPath2
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bcs STAT.RET4
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jsr STAT.PM
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lda #S.FI.T.DIR
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sta K.MLI.PARAMS+4
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stz K.MLI.PARAMS+5
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stz K.MLI.PARAMS+6
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lda #S.FI.ST.DIR
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jmp FS.MLICREATE
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*/--------------------------------------
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* # MKFIFO
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* return a pathname to a new FIFO
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* ## C
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* `hFILE mkfifo(const char *pathname, int mode);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
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* `>SYSCALL mkfifo`
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* ## RETURN VALUE
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* CC = OK, CS = ERROR
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* A = hFILE
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*\--------------------------------------
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K.MKFIFO jsr STAT.PM
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>LDYAI 512
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jsr K.pipe
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bcs STAT.RTS
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ldy #0
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.1 lda STAT.DEVFIFO,y
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sta (ZPPtr1),y fill pathname buffer
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iny
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cpy #9
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bne .1
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lda IO.hFD
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jsr STDIO.A2HexAX
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sta (ZPPtr1),y
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txa
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iny
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sta (ZPPtr1),y
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iny
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lda #0
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sta (ZPPtr1),y
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bra K.MkNod.I
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*/--------------------------------------
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* # MkNod
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* Create a special or ordinary file.
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* (CDEV, BDEV, DSOCK, SSOCK, PIPE)
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* ## C
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* `hFILE mknod(const char *pathname, int mode, hFD fd);`
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* ## ASM
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* `>PUSHW pathname`
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* `>PUSHW mode`
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* `>PUSHB fd`
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* `>SYSCALL mknod`
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* ## RETURN VALUE
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* CC = OK, CS = ERROR
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* A = hFILE
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*\--------------------------------------
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K.MkNod >PULLA
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jsr DEV.GetPFD
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jsr STAT.PM
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K.MkNod.I ldx #1
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.1 lda FILEs.hFD-1,x
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beq .2
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inx
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cpx #K.FILE.MAX+1
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bcc .1
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lda #E.OOH
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* sec
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rts
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.2 stx IO.hFILE
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lda IO.hFD
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sta FILEs.hFD-1,x
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stz FILEs.oCnt-1,x
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lda (pFD)
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cmp #S.FD.T.CDEV
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beq .8
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cmp #S.FD.T.BDEV
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beq .8
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>LDYA ZPPtr1
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>SYSCALL2 StrDup
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bcs .9
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txa
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ldx IO.hFILE
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sta FILEs.hName-1,x store path
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.8 txa hFILE
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clc
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.9 rts
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*/--------------------------------------
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* # pipe
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* ## C
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* `hFD pipe(int size);`
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* ## ASM
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* `>LDYA size`
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* `>SYSCALL pipe`
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* ## RETURN VALUE
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* CC = OK, CS = ERROR
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* A = hFD
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*\--------------------------------------
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K.Pipe sta .1+1 SIZE HI
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>SYSCALL2 NewStkObj
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bcs .99
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stx .8+1 save PIPE buffer
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lda #S.FD.T.PIPE
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jsr DEV.MkFD
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bcs .9
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.1 lda #$ff SELF MODIFIED
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ldy #S.FD.PIPE.Free+1
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sta (pFD),y
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ldy #S.FD.PIPE.Size+1
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sta (pFD),y
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ldy #S.FD.PIPE.hMem
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.8 lda #$ff Self Modified
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sta (pFD),y
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lda IO.hFD
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* clc
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rts
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.9 pha save error code
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lda .8+1 get back PIPE buffer
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>SYSCALL2 FreeStkObj
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pla
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sec
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.99 rts
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*--------------------------------------
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STAT.PM >PULLW K.S.STAT+S.STAT.MODE
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>PULLW ZPPtr1 pathname
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rts
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*--------------------------------------
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STAT.DEVFIFO .AS "/dev/fifo"
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*--------------------------------------
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MAN
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SAVE usr/src/sys/kernel.s.stat
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LOAD usr/src/sys/kernel.s
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ASM
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