-#if defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 0
-
-/* In DJGPP v2.0, library `write' can call `malloc', which might
- cause relocation of the buffer whose address we get in ADDR.
- Here is a version of `write' that avoids calling `malloc',
- to serve us until such time as the library is fixed.
- Actually, what we define here is called `__write', because
- `write' is a stub that just jmp's to `__write' (to be
- POSIXLY-correct with respect to the global name-space). */
-
-#include <io.h> /* for _write */
-#include <libc/dosio.h> /* for __file_handle_modes[] */
-
-static char xbuf[64 * 1024]; /* DOS cannot write more in one chunk */
-
-#define XBUF_END (xbuf + sizeof (xbuf) - 1)
-
-int
-__write (int handle, const void *buffer, size_t count)
-{
- if (count == 0)
- return 0;
-
- if(__file_handle_modes[handle] & O_BINARY)
- return _write (handle, buffer, count);
- else
- {
- char *xbp = xbuf;
- const char *bp = buffer;
- int total_written = 0;
- int nmoved = 0, ncr = 0;
-
- while (count)
- {
- /* The next test makes sure there's space for at least 2 more
- characters in xbuf[], so both CR and LF can be put there. */
- if (xbp < XBUF_END)
- {
- if (*bp == '\n')
- {
- ncr++;
- *xbp++ = '\r';
- }
- *xbp++ = *bp++;
- nmoved++;
- count--;
- }
- if (xbp >= XBUF_END || !count)
- {
- size_t to_write = nmoved + ncr;
- int written = _write (handle, xbuf, to_write);
-
- if (written == -1)
- return -1;
- else
- total_written += nmoved; /* CRs aren't counted in ret value */
-
- /* If some, but not all were written (disk full?), return
- an estimate of the total written bytes not counting CRs. */
- if (written < to_write)
- return total_written - (to_write - written) * nmoved/to_write;
-
- nmoved = 0;
- ncr = 0;
- xbp = xbuf;
- }
- }
- return total_written;
- }
-}
-
-/* A low-level file-renaming function which works around Windows 95 bug.
- This is pulled directly out of DJGPP v2.01 library sources, and only
- used when you compile with DJGPP v2.0. */
-
-#include <io.h>
-
-int _rename(const char *old, const char *new)
-{
- __dpmi_regs r;
- int olen = strlen(old) + 1;
- int i;
- int use_lfn = _USE_LFN;
- char tempfile[FILENAME_MAX];
- const char *orig = old;
- int lfn_fd = -1;
-
- r.x.dx = __tb_offset;
- r.x.di = __tb_offset + olen;
- r.x.ds = r.x.es = __tb_segment;
-
- if (use_lfn)
- {
- /* Windows 95 bug: for some filenames, when you rename
- file -> file~ (as in Emacs, to leave a backup), the
- short 8+3 alias doesn't change, which effectively
- makes OLD and NEW the same file. We must rename
- through a temporary file to work around this. */
-
- char *pbase = 0, *p;
- static char try_char[] = "abcdefghijklmnopqrstuvwxyz012345789";
- int idx = sizeof(try_char) - 1;
-
- /* Generate a temporary name. Can't use `tmpnam', since $TMPDIR
- might point to another drive, which will fail the DOS call. */
- strcpy(tempfile, old);
- for (p = tempfile; *p; p++) /* ensure temporary is on the same drive */
- if (*p == '/' || *p == '\\' || *p == ':')
- pbase = p;
- if (pbase)
- pbase++;
- else
- pbase = tempfile;
- strcpy(pbase, "X$$djren$$.$$temp$$");
-
- do
- {
- if (idx <= 0)
- return -1;
- *pbase = try_char[--idx];
- } while (_chmod(tempfile, 0) != -1);
-
- r.x.ax = 0x7156;
- _put_path2(tempfile, olen);
- _put_path(old);
- __dpmi_int(0x21, &r);
- if (r.x.flags & 1)
- {
- errno = __doserr_to_errno(r.x.ax);
- return -1;
- }
-
- /* Now create a file with the original name. This will
- ensure that NEW will always have a 8+3 alias
- different from that of OLD. (Seems to be required
- when NameNumericTail in the Registry is set to 0.) */
- lfn_fd = _creat(old, 0);
-
- olen = strlen(tempfile) + 1;
- old = tempfile;
- r.x.di = __tb_offset + olen;
- }
-
- for (i=0; i<2; i++)
- {
- if(use_lfn)
- r.x.ax = 0x7156;
- else
- r.h.ah = 0x56;
- _put_path2(new, olen);
- _put_path(old);
- __dpmi_int(0x21, &r);
- if(r.x.flags & 1)
- {
- if (r.x.ax == 5 && i == 0) /* access denied */
- remove(new); /* and try again */
- else
- {
- errno = __doserr_to_errno(r.x.ax);
-
- /* Restore to original name if we renamed it to temporary. */
- if (use_lfn)
- {
- if (lfn_fd != -1)
- {
- _close (lfn_fd);
- remove (orig);
- }
- _put_path2(orig, olen);
- _put_path(tempfile);
- r.x.ax = 0x7156;
- __dpmi_int(0x21, &r);
- }
- return -1;
- }
- }
- else
- break;
- }
-
- /* Success. Delete the file possibly created to work
- around the Windows 95 bug. */
- if (lfn_fd != -1)
- return (_close (lfn_fd) == 0) ? remove (orig) : -1;
- return 0;
-}
-
-#endif /* __DJGPP__ == 2 && __DJGPP_MINOR__ == 0 */
-