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/*
* $LynxId: HTDOS.c,v 1.40 2013/11/28 11:11:05 tom Exp $
* DOS specific routines
*/
#include <HTUtils.h>
#include <LYUtils.h>
#include <HTDOS.h>
#include <LYStrings.h>
#include <LYLeaks.h>
#ifdef _WINDOWS
#include <LYGlobalDefs.h>
#include <HTAlert.h>
#endif
/*
* Make a copy of the source argument in the result, allowing some extra
* space so we can append directly onto the result without reallocating.
*/
static char *copy_plus(char **result, const char *source)
{
int length = (int) strlen(source);
int extra = 10;
int n;
for (n = 0; n < length; ++n) {
if (source[n] == ' ')
++extra;
}
HTSprintf0(result, "%-*s", length + extra, source);
(*result)[length] = 0;
return (*result);
}
/* PUBLIC HTDOS_wwwName()
* CONVERTS DOS Name into WWW Name
* ON ENTRY:
* dosname DOS file specification (NO NODE)
*
* ON EXIT:
* returns WWW file specification
*
*/
const char *HTDOS_wwwName(const char *dosname)
{
static char *wwwname = NULL;
char *cp_url = copy_plus(&wwwname, dosname);
int wwwname_len;
char ch;
while ((ch = *dosname) != '\0') {
switch (ch) {
case '\\':
/* convert dos backslash to unix-style */
*cp_url++ = '/';
break;
case ' ':
*cp_url++ = '%';
*cp_url++ = '2';
*cp_url++ = '0';
break;
default:
*cp_url++ = ch;
break;
}
dosname++;
}
*cp_url = '\0';
wwwname_len = (int) strlen(wwwname);
if (wwwname_len > 1)
cp_url--; /* point last char */
if (wwwname_len > 3 && *cp_url == '/') {
cp_url++;
*cp_url = '\0';
}
return (wwwname);
}
/*
* Convert slashes from Unix to DOS
*/
char *HTDOS_slashes(char *path)
{
char *s;
for (s = path; *s != '\0'; ++s) {
if (*s == '/') {
*s = '\\';
}
}
return path;
}
/* PUBLIC HTDOS_name()
* CONVERTS WWW name into a DOS name
* ON ENTRY:
* wwwname WWW file name
*
* ON EXIT:
* returns DOS file specification
*/
char *HTDOS_name(const char *wwwname)
{
static char *result = NULL;
int joe;
#if defined(SH_EX) /* 2000/03/07 (Tue) 18:32:42 */
if (unsafe_filename(wwwname)) {
HTUserMsg2("unsafe filename : %s", wwwname);
copy_plus(&result, "BAD_LOCAL_FILE_NAME");
} else {
copy_plus(&result, wwwname);
}
#else
copy_plus(&result, wwwname);
#endif
#ifdef __DJGPP__
if (result[0] == '/'
&& result[1] == 'd'
&& result[2] == 'e'
&& result[3] == 'v'
&& result[4] == '/'
&& isalpha(result[5])) {
return (result);
}
#endif /* __DJGPP__ */
(void) HTDOS_slashes(result);
/* pesky leading slash, rudiment from file://localhost/ */
/* the rest of path may be with or without drive letter */
if ((result[1] != '\\') && (result[0] == '\\')) {
for (joe = 0; (result[joe] = result[joe + 1]) != 0; joe++) ;
}
/* convert '|' after the drive letter to ':' */
if (isalpha(UCH(result[0])) && result[1] == '|') {
result[1] = ':';
}
#ifdef _WINDOWS /* 1998/04/02 (Thu) 08:59:48 */
if (LYLastPathSep(result) != NULL
&& !LYIsDosDrive(result)) {
char temp_buff[LY_MAXPATH];
sprintf(temp_buff, "%.3s\\%.*s", windows_drive,
(int) (sizeof(temp_buff) - 5), result);
StrAllocCopy(result, temp_buff);
}
#endif
/*
* If we have only a device, add a trailing slash. Otherwise it just
* refers to the current directory on the given device.
*/
if (LYLastPathSep(result) == NULL
&& LYIsDosDrive(result))
LYAddPathSep0(result);
CTRACE((tfp, "HTDOS_name changed `%s' to `%s'\n", wwwname, result));
return (result);
}
#ifdef WIN_EX
char *HTDOS_short_name(const char *path)
{
static char sbuf[LY_MAXPATH];
char *ret;
DWORD r;
if (StrChr(path, '/'))
path = HTDOS_name(path);
r = GetShortPathName(path, sbuf, sizeof sbuf);
if (r >= sizeof(sbuf) || r == 0) {
ret = LYStrNCpy(sbuf, path, sizeof(sbuf));
} else {
ret = sbuf;
}
return ret;
}
#endif
#if defined(DJGPP)
/*
* Poll tcp/ip lib and yield to DPMI-host while nothing in
* keyboard buffer (head = tail) (simpler than kbhit).
* This is required to be able to finish off dead sockets,
* answer pings etc.
*/
#include <pc.h>
#include <dpmi.h>
#include <libc/farptrgs.h>
#include <go32.h>
void djgpp_idle_loop(void)
{
while (_farpeekw(_dos_ds, 0x41a) == _farpeekw(_dos_ds, 0x41c)) {
tcp_tick(NULL);
__dpmi_yield();
#if defined(USE_SLANG)
if (SLang_input_pending(1))
break;
#endif
}
}
/* PUBLIC getxkey()
* Replaces libc's getxkey() with polling of tcp/ip
* library (WatTcp or Watt-32). *
* ON EXIT:
* returns extended keypress.
*/
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
int getxkey(void)
{
#if defined(DJGPP_KEYHANDLER)
__dpmi_regs r;
djgpp_idle_loop();
r.h.ah = 0x10;
__dpmi_int(0x16, &r);
if (r.h.al == 0x00)
return 0x0100 | r.h.ah;
if (r.h.al == 0xe0)
return 0x0200 | r.h.ah;
return r.h.al;
#elif defined(USE_SLANG)
djgpp_idle_loop();
return SLkp_getkey();
#else
/* PDcurses uses myGetChar() in LYString.c */
#endif
}
#endif /* DJGPP */
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