| 0,0 → 1,106 |
|---|
| /* This file is part of the SvarCOM project and is published under the terms |
| * of the MIT license. |
| * |
| * Copyright (C) 2021-2022 Mateusz Viste |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /* |
| * chdir |
| * |
| * displays the name of or changes the current directory. |
| * |
| * CHDIR [drive:][path] |
| * CD.. |
| * |
| * Type CD drive: to display the current directory in the specified drive. |
| * Type CD without parameters to display the current drive and directory. |
| */ |
| |
| |
| static enum cmd_result cmd_cd(struct cmd_funcparam *p) { |
| char *buffptr = p->BUFFER; |
| |
| /* CD /? */ |
| if (cmd_ishlp(p)) { |
| nls_outputnl(12,0); /* "Displays the name of or changes the current directory." */ |
| outputnl(""); |
| nls_outputnl(12,1); /* "CHDIR [drive:][path]" */ |
| nls_outputnl(12,2); /* "CHDIR[..]" */ |
| nls_outputnl(12,3); /* "CD [drive:][path]" */ |
| nls_outputnl(12,4); /* "CD[..]" */ |
| outputnl(""); |
| nls_outputnl(12,5); /* ".. Specifies that you want to change to the parent directory." */ |
| outputnl(""); |
| nls_outputnl(12,6); /* "Type CD drive: to display the current directory in the specified drive." */ |
| nls_outputnl(12,7); /* "Type CD without parameters to display the current drive and directory." */ |
| return(CMD_OK); |
| } |
| |
| /* one argument max */ |
| if (p->argc > 1) { |
| nls_outputnl(0,4); /* "Too many parameters" */ |
| return(CMD_FAIL); |
| } |
| |
| /* no argument? display current drive and dir ("CWD") */ |
| if (p->argc == 0) { |
| curpathfordrv(buffptr, 0); |
| outputnl(buffptr); |
| return(CMD_OK); |
| } |
| |
| /* argument can be either a drive (D:) or a path */ |
| if (p->argc == 1) { |
| const char *arg = p->argv[0]; |
| unsigned short err = 0; |
| /* drive (CD B:) */ |
| if ((arg[0] != '\\') && (arg[1] == ':') && (arg[2] == 0)) { |
| unsigned char drive = arg[0]; |
| if (drive >= 'a') { |
| drive -= ('a' - 1); |
| } else { |
| drive -= ('A' - 1); |
| } |
| |
| err = curpathfordrv(buffptr, drive); |
| if (err == 0) outputnl(buffptr); |
| } else { /* path */ |
| _asm { |
| push dx |
| push ax |
| mov ah, 0x3B /* CHDIR (set current directory) */ |
| mov dx, arg |
| int 0x21 |
| jnc DONE |
| mov [err], ax |
| DONE: |
| pop ax |
| pop dx |
| } |
| } |
| if (err != 0) { |
| nls_outputnl_doserr(err); |
| return(CMD_FAIL); |
| } |
| } |
| |
| return(CMD_OK); |
| } |