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151 lines
5.5 KiB
151 lines
5.5 KiB
/*
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CPMREDIR: CP/M filesystem redirector
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Copyright (C) 1998, John Elliott <jce@seasip.demon.co.uk>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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This file holds the public interface to CPMREDIR.
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*/
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#ifndef CPMREDIR_H_INCLUDED
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#define CPMREDIR_H_INCLUDED 16-11-1998
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/* The "cpm_byte" must be exactly 8 bits.
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The "cpm_word" must be exactly 16 bits. */
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typedef unsigned char cpm_byte;
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typedef unsigned short cpm_word;
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/* Maximum length of a directory path */
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#ifdef _POSIX_PATH_MAX
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#define CPM_MAXPATH _POSIX_PATH_MAX
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#else
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#ifdef _MAX_PATH
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#define CPM_MAXPATH _MAX_PATH
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#else
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#define CPM_MAXPATH 260
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#endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Initialise this library. Call this function first.
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*
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* Returns 0 if failed to initialise.
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*/
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int fcb_init(void);
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/* Deinitialise the library. */
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void fcb_deinit(void);
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/* Translate a name from the host FS to a CP/M name. This will (if necessary)
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* create a mapping between a CP/M drive and a host directory path.
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*
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* CP/M drives A: to O: can be mapped in this way. P: is always the current
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* drive.
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*
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*/
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void xlt_name(char *localname, char *cpmname);
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/* It is sometimes convenient to set some fixed mappings. This will create
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* a mapping for a given directory.
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* Pass drive = -1 for "first available", or 0-15 for A: to P:
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* Returns 1 if OK, 0 if requested drive not available.
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*
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* NB: It is important that the localname should have a trailing
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* directory separator!
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*/
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int xlt_map(int drive, char *localdir);
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/*
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* This revokes a mapping. No check is made whether CP/M has files open
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* on the drive or not.
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*/
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int xlt_umap(int drive);
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/* Find out if a drive is mapped, and if so to what directory */
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char *xlt_getcwd(int drive);
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/* BDOS functions. Eventually this should handle all disc-related BDOS
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* functions.
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*
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* I am assuming that your emulator has the CP/M RAM in its normal address
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* space, accessible as a range 0-64k. If this is not the case
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* (eg: you are emulating banked memory, or using a segmented architecture)
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* you will have to use "copy in and copy out" techniques. The "fcb" area
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* must be 36 bytes long; the "dma" area should be 128 * the value set
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* in fcb_multirec() [default is 1, so 128 bytes].
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*
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*/
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cpm_byte fcb_reset (void); /* 0x0D */
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cpm_word fcb_drive (cpm_byte drv); /* 0x0E */
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cpm_word fcb_open (cpm_byte *fcb, cpm_byte *dma); /* 0x0F */
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cpm_word fcb_close (cpm_byte *fcb); /* 0x10 */
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cpm_word fcb_find1 (cpm_byte *fcb, cpm_byte *dma); /* 0x11 */
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cpm_word fcb_find2 (cpm_byte *fcb, cpm_byte *dma); /* 0x12 */
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cpm_word fcb_unlink(cpm_byte *fcb, cpm_byte *dma); /* 0x13 */
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cpm_word fcb_read (cpm_byte *fcb, cpm_byte *dma); /* 0x14 */
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cpm_word fcb_write (cpm_byte *fcb, cpm_byte *dma); /* 0x15 */
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cpm_word fcb_creat (cpm_byte *fcb, cpm_byte *dma); /* 0x16 */
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cpm_word fcb_rename(cpm_byte *fcb, cpm_byte *dma); /* 0x17 */
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cpm_word fcb_logvec(void); /* 0x18 */
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cpm_byte fcb_getdrv(void); /* 0x19 */
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/* DMA is a parameter to routines, not a separate call */
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cpm_word fcb_getalv(cpm_byte *alv, cpm_word max); /* 0x1B */
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/* Get alloc vector: caller must provide space and say how big it is. */
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cpm_word fcb_rodisk(void); /* 0x1C */
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cpm_word fcb_rovec (void); /* 0x1D */
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cpm_word fcb_chmod (cpm_byte *fcb, cpm_byte *dma); /* 0x1E */
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cpm_word fcb_getdpb(cpm_byte *dpb); /* 0x1F */
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cpm_byte fcb_user (cpm_byte usr); /* 0x20 */
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cpm_word fcb_randrd(cpm_byte *fcb, cpm_byte *dma); /* 0x21 */
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cpm_word fcb_randwr(cpm_byte *fcb, cpm_byte *dma); /* 0x22 */
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cpm_word fcb_stat (cpm_byte *fcb); /* 0x23 */
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cpm_word fcb_tell (cpm_byte *fcb); /* 0x24 */
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cpm_word fcb_resro (cpm_word bitmap); /* 0x25 */
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/* Access Drives and Free Drives are not supported. */
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cpm_word fcb_randwz(cpm_byte *fcb, cpm_byte *dma); /* 0x28 */
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/* Record locking calls not supported (though they could be) */
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cpm_word fcb_multirec(cpm_byte rc); /* 0x2C */
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/* Set hardware error action must be done by caller */
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cpm_word fcb_dfree (cpm_byte drive, cpm_byte *dma);/* 0x2E */
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cpm_word fcb_sync (cpm_byte flag); /* 0x30 */
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cpm_word fcb_purge (void); /* 0x62 */
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cpm_word fcb_trunc (cpm_byte *fcb, cpm_byte *dma); /* 0x63 */
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cpm_word fcb_setlbl(cpm_byte *fcb, cpm_byte *dma); /* 0x64 */
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cpm_word fcb_getlbl(cpm_byte drive); /* 0x65 */
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cpm_word fcb_date (cpm_byte *fcb); /* 0x66 */
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cpm_word fcb_setpwd(cpm_byte *fcb, cpm_byte *dma); /* 0x67 */
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cpm_word fcb_defpwd(cpm_byte *pwd); /* 0x6A */
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cpm_word fcb_sdate (cpm_byte *fcb, cpm_byte *dma); /* 0x74 */
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cpm_word fcb_parse (char *txt, cpm_byte *fcb); /* 0x98 */
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/* fcb_parse returns length of filename parsed, 0 if EOL, 0xFFFF if error */
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#ifdef __cplusplus
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}
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#endif
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#endif /* def CPMREDIR_H_INCLUDED */
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