| 13,8 → 13,8 |
|---|
| ;EINVAL equ 22 11 defined in stack.inc |
| ENFILE equ 23 |
| EMFILE equ 24 |
| EPIPE equ 32 |
| |
| |
| FILEOP_CLOSE equ 0 |
| FILEOP_READ equ 1 |
| FILEOP_WRITE equ 2 |
| 49,8 → 49,8 |
|---|
| dd sys_futex ;7 reserved |
| dd sys_posix.fail ;8 sys_open |
| dd sys_posix.fail ;9 sys_close |
| dd sys_posix.fail ;10 sys_read |
| dd sys_posix.fail ;11 sys_write |
| dd sys_read ;10 read() |
| dd sys_write ;11 write() |
| dd sys_posix.fail ;12 sys_dup3 |
| dd sys_pipe2 ;13 |
| .end: |
| 95,3 → 95,30 |
|---|
| mov [esp+SYSCALL_STACK._eax], -EBADF |
| ret |
| |
| ;ssize_t write(int fd, const void *buf, size_t count); |
| ; ecx fd |
| ; edx buf |
| ; esi count |
| |
| align 4 |
| sys_write: |
| cmp ecx, STDERR_FILENO |
| jbe .fail |
| cmp ecx, (PROC.pdt_0 - PROC.htab)/4 |
| jae .fail |
| |
| mov edi, [current_process] |
| mov ebp, [edi+PROC.htab+ecx*4] |
| |
| cmp [ebp+FILED.magic], 'PIPE' |
| jne .fail |
| cmp [ebp+FILED.handle], ecx |
| jne .fail |
| |
| mov ebp, [ebp+FILED.file] |
| mov eax, [ebp] |
| jmp dword [eax+FILEOP_WRITE*4] |
| .fail: |
| mov [esp+SYSCALL_STACK._eax], -EBADF |
| ret |
| |