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- /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
- #include <libc/stubs.h>
- #include <stdlib.h>
- #include <string.h>
- #include <errno.h>
- #include <go32.h>
- #include <dpmi.h>
- #include <dir.h>
- #include <fcntl.h>
- #include <libc/dosio.h>
-
- int
- findnext(struct ffblk *ffblk)
- {
- __dpmi_regs r;
-
- if (ffblk == 0)
- {
- errno = EACCES;
- return -1;
- }
-
- if(_USE_LFN)
- {
- /* si = 1 indicates DOS style dates, 0 means Win32 type dates.
- DOS style dates are broken in some Win95 betas, build for either.
- Release works with DOS date, it's faster, so use it. */
- #define USEDOSDATE 1
- #if USEDOSDATE == 1
- #define _Win32_to_DOS (long)
- #else
- extern long _Win32_to_DOS(long long WinTime);
- #endif
-
- r.x.ax = 0x714f;
- r.x.bx = ffblk->lfn_handle;
- if(!r.x.bx)
- {
- errno = ENMFILE;
- return 1;
- }
- r.x.di = __tb_offset;
- r.x.es = __tb_segment;
- r.x.si = USEDOSDATE;
-
- __dpmi_int(0x21, &r);
- if (!(r.x.flags & 1))
- {
- struct ffblklfn ffblk32;
- /* Recover results */
- dosmemget(__tb, sizeof(struct ffblklfn), &ffblk32);
-
- ffblk->ff_attrib = (char)ffblk32.fd_attrib;
- *(long *)&ffblk->ff_ftime = _Win32_to_DOS(ffblk32.fd_mtime);
- ffblk->ff_fsize = ffblk32.fd_size;
- strcpy(ffblk->ff_name, ffblk32.fd_longname);
- *(long *)&ffblk->lfn_ctime = _Win32_to_DOS(ffblk32.fd_ctime);
- *(long *)&ffblk->lfn_atime = _Win32_to_DOS(ffblk32.fd_atime);
-
- return 0;
- }
- errno = __doserr_to_errno(r.x.ax);
- if (errno == ENMFILE) /* call FindClose */
- {
- ffblk->lfn_handle = 0;
- r.x.ax = 0x71a1;
- __dpmi_int(0x21, &r);
- if(r.x.flags & 1)
- {
- errno = __doserr_to_errno(r.x.ax);
- return -1;
- }
- return 1;
- }
- return -1;
- }
- else
- {
- #define _sizeof_dos_ffblk 44
- /* The 43 character ff block must be put to the DTA, make the call, then
- recover the ff block. */
-
- r.x.dx = __tb_offset;
- r.x.ds = __tb_segment;
- r.h.ah = 0x1a;
- __dpmi_int(0x21, &r);
-
- dosmemput(ffblk, sizeof(struct ffblk), __tb);
-
- r.h.ah = 0x4f;
- __dpmi_int(0x21, &r);
- if(r.x.flags & 1)
- {
- errno = __doserr_to_errno(r.x.ax);
- return -1;
- }
-
- /* Recover results */
- dosmemget(__tb, _sizeof_dos_ffblk, ffblk);
- return 0;
- }
- }
-