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2f8d396b PT |
1 | /* |
2 | * Copyright 2008 Extreme Engineering Solutions, Inc. | |
3 | * | |
4 | * mmap/munmap implementation derived from: | |
5 | * Clamav Native Windows Port : mmap win32 compatibility layer | |
6 | * Copyright (c) 2005-2006 Gianluigi Tiesi <sherpya@netfarm.it> | |
7 | * Parts by Kees Zeelenberg <kzlg@users.sourceforge.net> (LibGW32C) | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Library General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Library General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Library General Public | |
20 | * License along with this software; if not, write to the | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | */ | |
23 | ||
24 | #include "mingw_support.h" | |
25 | #include <stdio.h> | |
26 | #include <stdint.h> | |
faf36c14 | 27 | #include <string.h> |
2f8d396b | 28 | #include <errno.h> |
faf36c14 | 29 | #include <assert.h> |
2f8d396b PT |
30 | #include <io.h> |
31 | ||
32 | int fsync(int fd) | |
33 | { | |
34 | return _commit(fd); | |
35 | } | |
36 | ||
37 | void *mmap(void *addr, size_t len, int prot, int flags, int fd, int offset) | |
38 | { | |
39 | void *map = NULL; | |
40 | HANDLE handle = INVALID_HANDLE_VALUE; | |
41 | DWORD cfm_flags = 0, mvf_flags = 0; | |
42 | ||
43 | switch (prot) { | |
44 | case PROT_READ | PROT_WRITE: | |
45 | cfm_flags = PAGE_READWRITE; | |
46 | mvf_flags = FILE_MAP_ALL_ACCESS; | |
47 | break; | |
48 | case PROT_WRITE: | |
49 | cfm_flags = PAGE_READWRITE; | |
50 | mvf_flags = FILE_MAP_WRITE; | |
51 | break; | |
52 | case PROT_READ: | |
53 | cfm_flags = PAGE_READONLY; | |
54 | mvf_flags = FILE_MAP_READ; | |
55 | break; | |
56 | default: | |
57 | return MAP_FAILED; | |
58 | } | |
59 | ||
60 | handle = CreateFileMappingA((HANDLE) _get_osfhandle(fd), NULL, | |
61 | cfm_flags, HIDWORD(len), LODWORD(len), NULL); | |
62 | if (!handle) | |
63 | return MAP_FAILED; | |
64 | ||
65 | map = MapViewOfFile(handle, mvf_flags, HIDWORD(offset), | |
66 | LODWORD(offset), len); | |
67 | CloseHandle(handle); | |
68 | ||
69 | if (!map) | |
70 | return MAP_FAILED; | |
71 | ||
72 | return map; | |
73 | } | |
74 | ||
75 | int munmap(void *addr, size_t len) | |
76 | { | |
77 | if (!UnmapViewOfFile(addr)) | |
78 | return -1; | |
79 | ||
80 | return 0; | |
81 | } | |
faf36c14 RB |
82 | |
83 | /* Reentrant string tokenizer. Generic version. | |
84 | Copyright (C) 1991,1996-1999,2001,2004,2007 Free Software Foundation, Inc. | |
85 | This file is part of the GNU C Library. | |
86 | ||
87 | This program is free software; you can redistribute it and/or modify | |
88 | it under the terms of the GNU General Public License as published by | |
89 | the Free Software Foundation; either version 2, or (at your option) | |
90 | any later version. | |
91 | ||
92 | This program is distributed in the hope that it will be useful, | |
93 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
94 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
95 | GNU General Public License for more details. | |
96 | ||
97 | You should have received a copy of the GNU General Public License along | |
98 | with this program; if not, write to the Free Software Foundation, | |
99 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
100 | ||
101 | /* Parse S into tokens separated by characters in DELIM. | |
102 | If S is NULL, the saved pointer in SAVE_PTR is used as | |
103 | the next starting point. For example: | |
104 | char s[] = "-abc-=-def"; | |
105 | char *sp; | |
106 | x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
107 | x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
108 | x = strtok_r(NULL, "=", &sp); // x = NULL | |
109 | // s = "abc\0-def\0" | |
110 | */ | |
111 | char *strtok_r(char *s, const char *delim, char **save_ptr) | |
112 | { | |
113 | char *token; | |
114 | ||
115 | if (s == NULL) | |
116 | s = *save_ptr; | |
117 | ||
118 | /* Scan leading delimiters. */ | |
119 | s += strspn(s, delim); | |
120 | if (*s == '\0') { | |
121 | *save_ptr = s; | |
122 | return NULL; | |
123 | } | |
124 | ||
125 | /* Find the end of the token. */ | |
126 | token = s; | |
127 | s = strpbrk (token, delim); | |
128 | if (s == NULL) { | |
129 | /* This token finishes the string. */ | |
130 | *save_ptr = memchr(token, '\0', strlen(token)); | |
131 | } else { | |
132 | /* Terminate the token and make *SAVE_PTR point past it. */ | |
133 | *s = '\0'; | |
134 | *save_ptr = s + 1; | |
135 | } | |
136 | return token; | |
137 | } | |
138 | ||
64b15021 | 139 | #include "getline.c" |