117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*
|
|
* Copyright 2008 Extreme Engineering Solutions, Inc.
|
|
*
|
|
* mmap/munmap implementation derived from:
|
|
* Clamav Native Windows Port : mmap win32 compatibility layer
|
|
* Copyright (c) 2005-2006 Gianluigi Tiesi <sherpya@netfarm.it>
|
|
* Parts by Kees Zeelenberg <kzlg@users.sourceforge.net> (LibGW32C)
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.0+
|
|
*/
|
|
|
|
#include "mingw_support.h"
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <io.h>
|
|
|
|
int fsync(int fd)
|
|
{
|
|
return _commit(fd);
|
|
}
|
|
|
|
void *mmap(void *addr, size_t len, int prot, int flags, int fd, int offset)
|
|
{
|
|
void *map = NULL;
|
|
HANDLE handle = INVALID_HANDLE_VALUE;
|
|
DWORD cfm_flags = 0, mvf_flags = 0;
|
|
|
|
switch (prot) {
|
|
case PROT_READ | PROT_WRITE:
|
|
cfm_flags = PAGE_READWRITE;
|
|
mvf_flags = FILE_MAP_ALL_ACCESS;
|
|
break;
|
|
case PROT_WRITE:
|
|
cfm_flags = PAGE_READWRITE;
|
|
mvf_flags = FILE_MAP_WRITE;
|
|
break;
|
|
case PROT_READ:
|
|
cfm_flags = PAGE_READONLY;
|
|
mvf_flags = FILE_MAP_READ;
|
|
break;
|
|
default:
|
|
return MAP_FAILED;
|
|
}
|
|
|
|
handle = CreateFileMappingA((HANDLE) _get_osfhandle(fd), NULL,
|
|
cfm_flags, HIDWORD(len), LODWORD(len), NULL);
|
|
if (!handle)
|
|
return MAP_FAILED;
|
|
|
|
map = MapViewOfFile(handle, mvf_flags, HIDWORD(offset),
|
|
LODWORD(offset), len);
|
|
CloseHandle(handle);
|
|
|
|
if (!map)
|
|
return MAP_FAILED;
|
|
|
|
return map;
|
|
}
|
|
|
|
int munmap(void *addr, size_t len)
|
|
{
|
|
if (!UnmapViewOfFile(addr))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Reentrant string tokenizer. Generic version.
|
|
Copyright (C) 1991,1996-1999,2001,2004,2007 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
/* Parse S into tokens separated by characters in DELIM.
|
|
If S is NULL, the saved pointer in SAVE_PTR is used as
|
|
the next starting point. For example:
|
|
char s[] = "-abc-=-def";
|
|
char *sp;
|
|
x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
|
x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
|
x = strtok_r(NULL, "=", &sp); // x = NULL
|
|
// s = "abc\0-def\0"
|
|
*/
|
|
char *strtok_r(char *s, const char *delim, char **save_ptr)
|
|
{
|
|
char *token;
|
|
|
|
if (s == NULL)
|
|
s = *save_ptr;
|
|
|
|
/* Scan leading delimiters. */
|
|
s += strspn(s, delim);
|
|
if (*s == '\0') {
|
|
*save_ptr = s;
|
|
return NULL;
|
|
}
|
|
|
|
/* Find the end of the token. */
|
|
token = s;
|
|
s = strpbrk (token, delim);
|
|
if (s == NULL) {
|
|
/* This token finishes the string. */
|
|
*save_ptr = memchr(token, '\0', strlen(token));
|
|
} else {
|
|
/* Terminate the token and make *SAVE_PTR point past it. */
|
|
*s = '\0';
|
|
*save_ptr = s + 1;
|
|
}
|
|
return token;
|
|
}
|
|
|
|
#include "getline.c"
|