547 lines
16 KiB
C++
547 lines
16 KiB
C++
/* miscfuncs.cc: misc funcs that don't belong anywhere else
|
|
|
|
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
|
2005, 2006, 2007, 2008 Red Hat, Inc.
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#include "winsup.h"
|
|
#include "miscfuncs.h"
|
|
#include <sys/uio.h>
|
|
#include <assert.h>
|
|
#include <alloca.h>
|
|
#include <limits.h>
|
|
#include <wchar.h>
|
|
#include <wingdi.h>
|
|
#include <winuser.h>
|
|
#include <winnls.h>
|
|
#include "cygtls.h"
|
|
#include "ntdll.h"
|
|
|
|
long tls_ix = -1;
|
|
|
|
const char case_folded_lower[] NO_COPY = {
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
|
|
32, '!', '"', '#', '$', '%', '&', 39, '(', ')', '*', '+', ',', '-', '.', '/',
|
|
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?',
|
|
'@', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
|
|
'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '[', 92, ']', '^', '_',
|
|
'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
|
|
'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~', 127,
|
|
128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
|
|
144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
|
|
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
|
|
176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
|
|
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
|
|
208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
|
|
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
|
|
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
|
|
};
|
|
|
|
const char case_folded_upper[] NO_COPY = {
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
|
|
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
|
|
32, '!', '"', '#', '$', '%', '&', 39, '(', ')', '*', '+', ',', '-', '.', '/',
|
|
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?',
|
|
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
|
|
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', 92, ']', '^', '_',
|
|
'`', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
|
|
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '{', '|', '}', '~', 127,
|
|
128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
|
|
144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
|
|
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
|
|
176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
|
|
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
|
|
208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
|
|
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
|
|
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
|
|
};
|
|
|
|
const char isalpha_array[] NO_COPY = {
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
|
|
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, 0, 0, 0, 0, 0,
|
|
0,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
|
|
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
extern "C" int __stdcall
|
|
cygwin_wcscasecmp (const wchar_t *ws, const wchar_t *wt)
|
|
{
|
|
UNICODE_STRING us, ut;
|
|
|
|
RtlInitUnicodeString (&us, ws);
|
|
RtlInitUnicodeString (&ut, wt);
|
|
return RtlCompareUnicodeString (&us, &ut, TRUE);
|
|
}
|
|
|
|
extern "C" int __stdcall
|
|
cygwin_wcsncasecmp (const wchar_t *ws, const wchar_t *wt, size_t n)
|
|
{
|
|
UNICODE_STRING us, ut;
|
|
size_t ls = 0, lt = 0;
|
|
|
|
while (ws[ls] && ls < n)
|
|
++ls;
|
|
RtlInitCountedUnicodeString (&us, ws, ls * sizeof (WCHAR));
|
|
while (wt[lt] && lt < n)
|
|
++lt;
|
|
RtlInitCountedUnicodeString (&ut, wt, lt * sizeof (WCHAR));
|
|
return RtlCompareUnicodeString (&us, &ut, TRUE);
|
|
}
|
|
|
|
extern "C" int __stdcall
|
|
cygwin_strcasecmp (const char *cs, const char *ct)
|
|
{
|
|
UNICODE_STRING us, ut;
|
|
ULONG len;
|
|
|
|
len = (strlen (cs) + 1) * sizeof (WCHAR);
|
|
RtlInitEmptyUnicodeString (&us, (PWCHAR) alloca (len), len);
|
|
us.Length = sys_mbstowcs (us.Buffer, us.MaximumLength, cs) * sizeof (WCHAR);
|
|
len = (strlen (ct) + 1) * sizeof (WCHAR);
|
|
RtlInitEmptyUnicodeString (&ut, (PWCHAR) alloca (len), len);
|
|
ut.Length = sys_mbstowcs (ut.Buffer, ut.MaximumLength, ct) * sizeof (WCHAR);
|
|
return RtlCompareUnicodeString (&us, &ut, TRUE);
|
|
}
|
|
|
|
extern "C" int __stdcall
|
|
cygwin_strncasecmp (const char *cs, const char *ct, size_t n)
|
|
{
|
|
UNICODE_STRING us, ut;
|
|
ULONG len;
|
|
size_t ls = 0, lt = 0;
|
|
|
|
while (cs[ls] && ls < n)
|
|
++ls;
|
|
len = (ls + 1) * sizeof (WCHAR);
|
|
RtlInitEmptyUnicodeString (&us, (PWCHAR) alloca (len), len);
|
|
us.Length = sys_mbstowcs (us.Buffer, ls + 1, cs, ls) * sizeof (WCHAR);
|
|
while (ct[lt] && lt < n)
|
|
++lt;
|
|
len = (lt + 1) * sizeof (WCHAR);
|
|
RtlInitEmptyUnicodeString (&ut, (PWCHAR) alloca (len), len);
|
|
ut.Length = sys_mbstowcs (ut.Buffer, lt + 1, ct, lt) * sizeof (WCHAR);
|
|
return RtlCompareUnicodeString (&us, &ut, TRUE);
|
|
}
|
|
|
|
extern "C" wchar_t * __stdcall
|
|
cygwin_wcslwr (wchar_t *string)
|
|
{
|
|
UNICODE_STRING us;
|
|
|
|
RtlInitUnicodeString (&us, string);
|
|
RtlDowncaseUnicodeString (&us, &us, FALSE);
|
|
return string;
|
|
}
|
|
|
|
extern "C" wchar_t * __stdcall
|
|
cygwin_wcsupr (wchar_t *string)
|
|
{
|
|
UNICODE_STRING us;
|
|
|
|
RtlInitUnicodeString (&us, string);
|
|
RtlUpcaseUnicodeString (&us, &us, FALSE);
|
|
return string;
|
|
}
|
|
|
|
extern "C" char * __stdcall
|
|
cygwin_strlwr (char *string)
|
|
{
|
|
UNICODE_STRING us;
|
|
size_t len = (strlen (string) + 1) * sizeof (WCHAR);
|
|
|
|
us.MaximumLength = len; us.Buffer = (PWCHAR) alloca (len);
|
|
us.Length = sys_mbstowcs (us.Buffer, len, string) * sizeof (WCHAR)
|
|
- sizeof (WCHAR);
|
|
RtlDowncaseUnicodeString (&us, &us, FALSE);
|
|
sys_wcstombs (string, len / sizeof (WCHAR), us.Buffer);
|
|
return string;
|
|
}
|
|
|
|
extern "C" char * __stdcall
|
|
cygwin_strupr (char *string)
|
|
{
|
|
UNICODE_STRING us;
|
|
size_t len = (strlen (string) + 1) * sizeof (WCHAR);
|
|
|
|
us.MaximumLength = len; us.Buffer = (PWCHAR) alloca (len);
|
|
us.Length = sys_mbstowcs (us.Buffer, len, string) * sizeof (WCHAR)
|
|
- sizeof (WCHAR);
|
|
RtlUpcaseUnicodeString (&us, &us, FALSE);
|
|
sys_wcstombs (string, len / sizeof (WCHAR), us.Buffer);
|
|
return string;
|
|
}
|
|
|
|
/* FIXME? We only support standard ANSI/OEM codepages according to
|
|
http://www.microsoft.com/globaldev/reference/cphome.mspx as well
|
|
as UTF-8 and codepage 1361, which is also mentioned as valid
|
|
doublebyte codepage in MSDN man pages (e.g. IsDBCSLeadByteEx).
|
|
Everything else will be hosed. */
|
|
|
|
bool
|
|
is_cp_multibyte (UINT cp)
|
|
{
|
|
switch (cp)
|
|
{
|
|
case 932:
|
|
case 936:
|
|
case 949:
|
|
case 950:
|
|
case 1361:
|
|
case 65001:
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* OMYGOD! CharNextExA is not UTF-8 aware! It only works fine with
|
|
double byte charsets. So we have to do it ourselves for UTF-8.
|
|
|
|
While being at it, we do more. If a double-byte or multibyte
|
|
sequence is truncated due to an early end, we need a way to recognize
|
|
it. The reason is that multiple buffered write statements might
|
|
accidentally stop and start in the middle of a single character byte
|
|
sequence. If we have to interpret the byte sequences (as in
|
|
fhandler_console), we would print wrong output in these cases.
|
|
|
|
So we have four possible return values here:
|
|
|
|
ret = end if str >= end
|
|
ret = NULL if we encounter an invalid byte sequence
|
|
ret = str if we encounter the start byte of a truncated byte sequence
|
|
ret = str + n if we encounter a vaild byte sequence
|
|
*/
|
|
|
|
const unsigned char *
|
|
next_char (UINT cp, const unsigned char *str, const unsigned char *end)
|
|
{
|
|
const unsigned char *ret = NULL;
|
|
|
|
if (str >= end)
|
|
return end;
|
|
|
|
switch (cp)
|
|
{
|
|
case 932:
|
|
case 936:
|
|
case 949:
|
|
case 950:
|
|
case 1361:
|
|
if (*str <= 0x7f)
|
|
ret = str + 1;
|
|
else if (str == end - 1 && IsDBCSLeadByteEx (cp, *str))
|
|
ret = str;
|
|
else
|
|
ret = (const unsigned char *) CharNextExA (cp, (const CHAR *) str, 0);
|
|
break;
|
|
case CP_UTF8:
|
|
switch (str[0] >> 4)
|
|
{
|
|
case 0x0 ... 0x7: /* One byte character. */
|
|
ret = str + 1;
|
|
break;
|
|
case 0x8 ... 0xb: /* Followup byte. Invalid as first byte. */
|
|
ret = NULL;
|
|
break;
|
|
case 0xc ... 0xd: /* Two byte character. */
|
|
/* Check followup bytes for validity. */
|
|
if (str >= end - 1)
|
|
ret = str;
|
|
else if (str[1] <= 0xbf)
|
|
ret = str + 2;
|
|
else
|
|
ret = NULL;
|
|
break;
|
|
case 0xe: /* Three byte character. */
|
|
if (str >= end - 2)
|
|
ret = str;
|
|
else if ((str[1] & 0xc0) == 0x80 && (str[2] & 0xc0) == 0x80
|
|
&& (str[0] != 0xe0 || str[1] >= 0xa0)
|
|
&& (str[0] != 0xed || str[1] <= 0x9f))
|
|
ret = str + 3;
|
|
else
|
|
ret = NULL;
|
|
break;
|
|
case 0xf: /* Four byte character. */
|
|
if (str[0] >= 0xf8)
|
|
ret = NULL;
|
|
else if (str >= end - 3)
|
|
ret = str;
|
|
else if ((str[1] & 0xc0) == 0x80 && (str[2] & 0xc0) == 0x80
|
|
&& (str[3] & 0xc0) == 0x80
|
|
&& (str[0] == 0xf0 || str[1] >= 0x90)
|
|
&& (str[0] == 0xf4 || str[1] <= 0x8f))
|
|
ret = str + 4;
|
|
else
|
|
ret = NULL;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
ret = str + 1;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int __stdcall
|
|
check_invalid_virtual_addr (const void *s, unsigned sz)
|
|
{
|
|
MEMORY_BASIC_INFORMATION mbuf;
|
|
const void *end;
|
|
|
|
for (end = (char *) s + sz; s < end;
|
|
s = (char *) mbuf.BaseAddress + mbuf.RegionSize)
|
|
if (!VirtualQuery (s, &mbuf, sizeof mbuf))
|
|
return EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static char __attribute__ ((noinline))
|
|
dummytest (volatile char *p)
|
|
{
|
|
return *p;
|
|
}
|
|
|
|
ssize_t
|
|
check_iovec (const struct iovec *iov, int iovcnt, bool forwrite)
|
|
{
|
|
if (iovcnt <= 0 || iovcnt > IOV_MAX)
|
|
{
|
|
set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
myfault efault;
|
|
if (efault.faulted (EFAULT))
|
|
return -1;
|
|
|
|
size_t tot = 0;
|
|
|
|
while (iovcnt != 0)
|
|
{
|
|
if (iov->iov_len > SSIZE_MAX || (tot += iov->iov_len) > SSIZE_MAX)
|
|
{
|
|
set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
volatile char *p = ((char *) iov->iov_base) + iov->iov_len - 1;
|
|
if (!iov->iov_len)
|
|
/* nothing to do */;
|
|
else if (!forwrite)
|
|
*p = dummytest (p);
|
|
else
|
|
dummytest (p);
|
|
|
|
iov++;
|
|
iovcnt--;
|
|
}
|
|
|
|
assert (tot <= SSIZE_MAX);
|
|
|
|
return (ssize_t) tot;
|
|
}
|
|
|
|
extern "C" int
|
|
low_priority_sleep (DWORD secs)
|
|
{
|
|
HANDLE thisthread = GetCurrentThread ();
|
|
int curr_prio = GetThreadPriority (thisthread);
|
|
bool staylow;
|
|
if (secs != INFINITE)
|
|
staylow = false;
|
|
else
|
|
{
|
|
secs = 0;
|
|
staylow = true;
|
|
}
|
|
|
|
if (!secs)
|
|
{
|
|
for (int i = 0; i < 3; i++)
|
|
SwitchToThread ();
|
|
}
|
|
else
|
|
{
|
|
int new_prio;
|
|
if (GetCurrentThreadId () == cygthread::main_thread_id)
|
|
new_prio = THREAD_PRIORITY_LOWEST;
|
|
else
|
|
new_prio = GetThreadPriority (hMainThread);
|
|
|
|
if (curr_prio != new_prio)
|
|
/* Force any threads in normal priority to be scheduled */
|
|
SetThreadPriority (thisthread, new_prio);
|
|
Sleep (secs);
|
|
|
|
if (!staylow && curr_prio != new_prio)
|
|
SetThreadPriority (thisthread, curr_prio);
|
|
}
|
|
|
|
return curr_prio;
|
|
}
|
|
|
|
/* Get a default value for the nice factor. When changing these values,
|
|
have a look into the below function nice_to_winprio. The values must
|
|
match the layout of the static "priority" array. */
|
|
int
|
|
winprio_to_nice (DWORD prio)
|
|
{
|
|
switch (prio)
|
|
{
|
|
case REALTIME_PRIORITY_CLASS:
|
|
return -20;
|
|
case HIGH_PRIORITY_CLASS:
|
|
return -16;
|
|
case ABOVE_NORMAL_PRIORITY_CLASS:
|
|
return -8;
|
|
case NORMAL_PRIORITY_CLASS:
|
|
return 0;
|
|
case BELOW_NORMAL_PRIORITY_CLASS:
|
|
return 8;
|
|
case IDLE_PRIORITY_CLASS:
|
|
return 16;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Get a Win32 priority matching the incoming nice factor. The incoming
|
|
nice is limited to the interval [-NZERO,NZERO-1]. */
|
|
DWORD
|
|
nice_to_winprio (int &nice)
|
|
{
|
|
static const DWORD priority[] NO_COPY =
|
|
{
|
|
REALTIME_PRIORITY_CLASS, /* 0 */
|
|
HIGH_PRIORITY_CLASS, /* 1 */
|
|
HIGH_PRIORITY_CLASS,
|
|
HIGH_PRIORITY_CLASS,
|
|
HIGH_PRIORITY_CLASS,
|
|
HIGH_PRIORITY_CLASS,
|
|
HIGH_PRIORITY_CLASS,
|
|
HIGH_PRIORITY_CLASS, /* 7 */
|
|
ABOVE_NORMAL_PRIORITY_CLASS, /* 8 */
|
|
ABOVE_NORMAL_PRIORITY_CLASS,
|
|
ABOVE_NORMAL_PRIORITY_CLASS,
|
|
ABOVE_NORMAL_PRIORITY_CLASS,
|
|
ABOVE_NORMAL_PRIORITY_CLASS,
|
|
ABOVE_NORMAL_PRIORITY_CLASS,
|
|
ABOVE_NORMAL_PRIORITY_CLASS,
|
|
ABOVE_NORMAL_PRIORITY_CLASS, /* 15 */
|
|
NORMAL_PRIORITY_CLASS, /* 16 */
|
|
NORMAL_PRIORITY_CLASS,
|
|
NORMAL_PRIORITY_CLASS,
|
|
NORMAL_PRIORITY_CLASS,
|
|
NORMAL_PRIORITY_CLASS,
|
|
NORMAL_PRIORITY_CLASS,
|
|
NORMAL_PRIORITY_CLASS,
|
|
NORMAL_PRIORITY_CLASS, /* 23 */
|
|
BELOW_NORMAL_PRIORITY_CLASS, /* 24 */
|
|
BELOW_NORMAL_PRIORITY_CLASS,
|
|
BELOW_NORMAL_PRIORITY_CLASS,
|
|
BELOW_NORMAL_PRIORITY_CLASS,
|
|
BELOW_NORMAL_PRIORITY_CLASS,
|
|
BELOW_NORMAL_PRIORITY_CLASS,
|
|
BELOW_NORMAL_PRIORITY_CLASS,
|
|
BELOW_NORMAL_PRIORITY_CLASS, /* 31 */
|
|
IDLE_PRIORITY_CLASS, /* 32 */
|
|
IDLE_PRIORITY_CLASS,
|
|
IDLE_PRIORITY_CLASS,
|
|
IDLE_PRIORITY_CLASS,
|
|
IDLE_PRIORITY_CLASS,
|
|
IDLE_PRIORITY_CLASS,
|
|
IDLE_PRIORITY_CLASS,
|
|
IDLE_PRIORITY_CLASS /* 39 */
|
|
};
|
|
if (nice < -NZERO)
|
|
nice = -NZERO;
|
|
else if (nice > NZERO - 1)
|
|
nice = NZERO - 1;
|
|
DWORD prio = priority[nice + NZERO];
|
|
if (!wincap.has_extended_priority_class ()
|
|
&& (prio == BELOW_NORMAL_PRIORITY_CLASS
|
|
|| prio == ABOVE_NORMAL_PRIORITY_CLASS))
|
|
prio = NORMAL_PRIORITY_CLASS;
|
|
return prio;
|
|
}
|
|
|
|
#undef CreatePipe
|
|
bool
|
|
create_pipe (PHANDLE hr,PHANDLE hw, LPSECURITY_ATTRIBUTES sa, DWORD n)
|
|
{
|
|
for (int i = 0; i < 10; i++)
|
|
if (CreatePipe (hr, hw, sa, n))
|
|
return true;
|
|
else if (GetLastError () == ERROR_PIPE_BUSY && i < 9)
|
|
Sleep (10);
|
|
else
|
|
break;
|
|
return false;
|
|
}
|
|
|
|
/* backslashify: Convert all forward slashes in src path to back slashes
|
|
in dst path. Add a trailing slash to dst when trailing_slash_p arg
|
|
is set to 1. */
|
|
|
|
void
|
|
backslashify (const char *src, char *dst, bool trailing_slash_p)
|
|
{
|
|
const char *start = src;
|
|
|
|
while (*src)
|
|
{
|
|
if (*src == '/')
|
|
*dst++ = '\\';
|
|
else
|
|
*dst++ = *src;
|
|
++src;
|
|
}
|
|
if (trailing_slash_p
|
|
&& src > start
|
|
&& !isdirsep (src[-1]))
|
|
*dst++ = '\\';
|
|
*dst++ = 0;
|
|
}
|
|
|
|
/* slashify: Convert all back slashes in src path to forward slashes
|
|
in dst path. Add a trailing slash to dst when trailing_slash_p arg
|
|
is set to 1. */
|
|
|
|
void
|
|
slashify (const char *src, char *dst, bool trailing_slash_p)
|
|
{
|
|
const char *start = src;
|
|
|
|
while (*src)
|
|
{
|
|
if (*src == '\\')
|
|
*dst++ = '/';
|
|
else
|
|
*dst++ = *src;
|
|
++src;
|
|
}
|
|
if (trailing_slash_p
|
|
&& src > start
|
|
&& !isdirsep (src[-1]))
|
|
*dst++ = '/';
|
|
*dst++ = 0;
|
|
}
|