| 224,6 → 224,31 |
|---|
| } |
| |
| |
| /* asks DOS to change the current default drive, returns the current drive |
| * (should be the same as d on success) */ |
| static unsigned char _changedosdrive(unsigned char d); |
| #pragma aux _changedosdrive = \ |
| "mov ah, 0x0e" /* DOS 1+ - SELECT DRIVE (DL=drive, 00h=A:, 01h=B:, etc) */ \ |
| "int 0x21" \ |
| "mov ah, 0x19" /* DOS 1+ - GET CURRENT DRIVE (drive in al) */ \ |
| "int 0x21" \ |
| parm [dl] \ |
| modify [ah] \ |
| value [al] |
| |
| |
| /* asks DOS to del a file, returns 0 on success */ |
| static unsigned short _dosdelfile(const char near *f); |
| #pragma aux _dosdelfile = \ |
| "mov ah, 0x41" /* delete a file ; DS:DX = filename to delete */ \ |
| "int 0x21" \ |
| "jc DONE" \ |
| "xor ax, ax" \ |
| "DONE:" \ |
| parm [dx] \ |
| value [ax] |
| |
| |
| enum cmd_result cmd_process(struct rmod_props far *rmod, unsigned short env_seg, const char *cmdline, void *BUFFER, unsigned short BUFFERSZ, const struct redir_data *redir, unsigned char delstdin) { |
| const struct CMD_ID *cmdptr; |
| unsigned short argoffset; |
| 235,24 → 260,13 |
|---|
| if ((cmdline[0] != 0) && (cmdline[1] == ':') && ((cmdline[2] == ' ') || (cmdline[2] == 0))) { |
| if (((cmdline[0] >= 'a') && (cmdline[0] <= 'z')) || ((cmdline[0] >= 'A') && (cmdline[0] <= 'Z'))) { |
| unsigned char drive = cmdline[0]; |
| unsigned char curdrive = 0; |
| unsigned char curdrive; |
| if (drive >= 'a') { |
| drive -= 'a'; |
| } else { |
| drive -= 'A'; |
| } |
| _asm { |
| push ax |
| push dx |
| mov ah, 0x0e /* DOS 1+ - SELECT DEFAULT DRIVE */ |
| mov dl, drive /* DL = new default drive (00h = A:, 01h = B:, etc) */ |
| int 0x21 |
| mov ah, 0x19 /* DOS 1+ - GET CURRENT DRIVE */ |
| int 0x21 |
| mov curdrive, al /* cur drive (0=A, 1=B, etc) */ |
| pop dx |
| pop ax |
| } |
| curdrive = _changedosdrive(drive); |
| if (curdrive == drive) return(CMD_OK); |
| nls_outputnl_doserr(0x0f); |
| return(CMD_FAIL); |
| 282,22 → 296,9 |
|---|
| |
| /* delete stdin temporary file */ |
| if (delstdin) { |
| const char *fname = redir->stdinfile; |
| unsigned short doserr = 0; |
| _asm { |
| push ax |
| push dx |
| mov ah, 0x41 /* delete a file */ |
| mov dx, fname /* DS:DX - filename to delete */ |
| int 0x21 |
| jnc DONE |
| mov doserr, ax |
| DONE: |
| pop dx |
| pop ax |
| } |
| unsigned short doserr = _dosdelfile(redir->stdinfile); |
| if (doserr) { |
| output(fname); |
| output(redir->stdinfile); |
| output(": "); |
| nls_outputnl_doserr(doserr); |
| } |