0,0 → 1,162 |
/* 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. |
*/ |
|
/* |
* rename/ren |
*/ |
|
static enum cmd_result cmd_rename(struct cmd_funcparam *p) { |
char *src = p->BUFFER; |
char *dst = p->BUFFER + 256; |
char *buff1 = p->BUFFER + 512; |
char *buff2 = p->BUFFER + 1024; |
unsigned short i, fnameoffset; |
struct DTA *dta = (void *)0x80; /* use default DTA in PSP */ |
|
if (cmd_ishlp(p)) { |
nls_outputnl(25,0); /* "Renames one or more files or directories." */ |
outputnl(""); |
nls_outputnl(25,1); /* "RENAME [drive:][path]oldname newname" */ |
nls_outputnl(25,2); /* "REN [drive:][path]oldname newname" */ |
outputnl(""); |
nls_outputnl(25,3); /* "Note that you cannot specify a new drive or (...)" */ |
return(CMD_OK); |
} |
|
/* I expect exactly two arguments */ |
if (p->argc != 2) { |
nls_outputnl(0,1); /* "Invalid syntax" */ |
return(CMD_FAIL); |
} |
|
/* convert src to truename format */ |
i = file_truename(p->argv[0], src); |
if (i != 0) { |
nls_outputnl_doserr(i); |
return(CMD_FAIL); |
} |
|
/* copy src path to buffers and remember where the filename starts */ |
fnameoffset = 0; |
for (i = 0;; i++) { |
buff1[i] = src[i]; |
buff2[i] = src[i]; |
if (buff1[i] == '\\') fnameoffset = i + 1; |
if (buff1[i] == 0) break; |
} |
|
/* now append dst filename to the buffer and validate it: cannot contain backslash, slash or ':' */ |
for (i = 0;; i++) { |
switch (p->argv[1][i]) { |
case ':': |
case '\\': |
case '/': |
nls_outputnl(0,8); /* "Invalid destination" */ |
return(CMD_FAIL); |
} |
buff1[fnameoffset + i] = p->argv[1][i]; |
if (buff1[fnameoffset + i] == 0) break; |
} |
|
/* apply truename to dest to normalize wildcards into ? chars */ |
i = file_truename(buff1, dst); |
if (i != 0) { |
nls_outputnl_doserr(i); |
return(CMD_FAIL); |
} |
|
/* we're good to go, src and dst should look somehow like that now: |
* src = C:\TEMP\PATH\FILE????.TXT |
* dst = C:\TEMP\PATH\FILE????.DOC |
* buff1 = C:\TEMP\PATH\ |
* buff2 = C:\TEMP\PATH\ |
* fnameoffset = 13 |
* |
* src is used for FindFirst/FindNext iterations, then buff1 is filled with |
* the source filename found by FindFirst/FindNext and buff2 is filled with |
* the destination file (with ?'s replaced by whatever is found at the same |
* location in buff1). |
*/ |
|
i = findfirst(dta, src, DOS_ATTR_RO | DOS_ATTR_HID | DOS_ATTR_SYS | DOS_ATTR_ARC | DOS_ATTR_DIR); |
if (i != 0) nls_outputnl_doserr(i); |
|
while (i == 0) { |
/* write found fname into buff1 and dst fname into buff2 - both in FCB |
* format (MYFILE EXT) so it is easy to compare them */ |
file_fname2fcb(buff1 + fnameoffset, dta->fname); |
file_fname2fcb(buff2 + fnameoffset, dst + fnameoffset); |
|
/* scan buff2 fname for '?' and replace them with whatever is in buff1 */ |
for (i = fnameoffset; buff2[i] != 0; i++) { |
if (buff2[i] == '?') buff2[i] = buff1[i]; |
} |
|
/* fill buff1 with the 8+3 found file and convert the one in buff2 to 8+3 as well */ |
file_fcb2fname(buff1 + fnameoffset, buff2 + fnameoffset); |
strcpy(buff2 + fnameoffset, buff1 + fnameoffset); |
strcpy(buff1 + fnameoffset, dta->fname); |
|
/* buff1 contains now a fully resolved source and buff2 a proper destination */ |
#if 0 /* DEBUG ("if 1" to enable) */ |
output(buff1); |
output(" -> "); |
outputnl(buff2); |
#endif |
/* call DOS to do the actual job */ |
i = 0; |
_asm { |
push ax |
push di |
push dx |
push es |
|
mov ah, 0x56 /* rename file: DS:DX=ASCIIZ of src ES:DI=ASCIIZ of dst */ |
push ds |
pop es |
mov dx, buff1 |
mov di, buff2 |
int 0x21 /* CF clear on success, otherwise err code in AX */ |
jnc DONE |
mov [i], ax /* copy error code to i */ |
DONE: |
|
pop es |
pop dx |
pop di |
pop ax |
} |
if (i != 0) { |
output(buff1 + fnameoffset); |
output(" -> "); |
output(buff2 + fnameoffset); |
output(" "); |
nls_outputnl_doserr(i); |
} |
/* next please */ |
i = findnext(dta); |
} |
|
return(CMD_OK); |
} |