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- /* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
- /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
- #include <libc/stubs.h>
- #include <stdlib.h>
- #include <string.h>
- #include <errno.h>
- #include <fcntl.h>
- #include <go32.h>
- #include <dpmi.h>
- #include <dir.h>
- #include <libc/dosio.h>
-
- int
- findfirst(const char *pathname, struct ffblk *ffblk, int attrib)
- {
- __dpmi_regs r;
- int pathlen;
- int use_lfn = _USE_LFN;
-
- if (pathname == 0 || ffblk == 0)
- {
- errno = EACCES;
- return -1;
- }
-
- pathlen = strlen(pathname) + 1;
-
- _put_path(pathname);
- 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 = 0x714e;
- r.x.cx = attrib;
- r.x.dx = __tb_offset;
- r.x.ds = __tb_segment;
- r.x.di = __tb_offset + pathlen;
- r.x.es = r.x.ds;
- r.x.si = USEDOSDATE;
- __dpmi_int(0x21, &r);
- if(!(r.x.flags & 1)) {
- struct ffblklfn ffblk32;
- /* Recover results */
- dosmemget(__tb+pathlen, 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);
- strcpy(ffblk->lfn_magic, "LFN32");
-
- /* If no wildcards, close the handle */
- if(!strchr(pathname,'*') && !strchr(pathname,'?')) {
- r.x.bx = r.x.ax;
- r.x.ax = 0x71a1;
- __dpmi_int(0x21, &r);
- r.x.ax = 0;
- }
-
- ffblk->lfn_handle = r.x.ax;
- *(long *)(&ffblk->lfn_ctime) = _Win32_to_DOS(ffblk32.fd_ctime);
- *(long *)(&ffblk->lfn_atime) = _Win32_to_DOS(ffblk32.fd_atime);
-
- return 0;
- }
- } else {
-
- #define _sizeof_dos_ffblk 44
- /* There will be a _sizeof_dos_ffblk character return value from findfirst
- in the DTA. Put the file name before this. First set the DTA to be
- transfer buffer. */
-
- r.x.dx = __tb_offset + pathlen;
- r.x.ds = __tb_segment;
- r.h.ah = 0x1a;
- __dpmi_int(0x21, &r);
-
- r.h.ah = 0x4e;
- r.x.dx = __tb_offset;
- r.x.ds = __tb_segment;
- r.x.cx = attrib;
- __dpmi_int(0x21, &r);
- if(!(r.x.flags & 1)) {
- /* Recover results */
- dosmemget(__tb+pathlen, _sizeof_dos_ffblk, ffblk);
- return 0;
- }
- }
-
- errno = __doserr_to_errno(r.x.ax);
- return errno;
- }
-