1 /* Macros for taking apart, interpreting and processing file names. 2 3 These are here because some non-Posix (a.k.a. DOSish) systems have 4 drive letter brain-damage at the beginning of an absolute file name, 5 use forward- and back-slash in path names interchangeably, and 6 some of them have case-insensitive file names. 7 8 Copyright (C) 2000-2020 Free Software Foundation, Inc. 9 10 This file is part of BFD, the Binary File Descriptor library. 11 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 2 of the License, or 15 (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software 24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 25 26 #ifndef FILENAMES_H 27 #define FILENAMES_H 28 29 #include "hashtab.h" /* for hashval_t */ 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #if defined(__MSDOS__) || (defined(_WIN32) && ! defined(__CYGWIN__)) || \ 36 defined(__OS2__) 37 # ifndef HAVE_DOS_BASED_FILE_SYSTEM 38 # define HAVE_DOS_BASED_FILE_SYSTEM 1 39 # endif 40 # ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM 41 # define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1 42 # endif 43 # define HAS_DRIVE_SPEC(f) HAS_DOS_DRIVE_SPEC (f) 44 # define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c) 45 # define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f) 46 #else /* not DOSish */ 47 # if defined(__APPLE__) 48 # ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM 49 # define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1 50 # endif 51 # endif /* __APPLE__ */ 52 # define HAS_DRIVE_SPEC(f) (0) 53 # define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c) 54 # define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f) 55 #endif 56 57 #define IS_DIR_SEPARATOR_1(dos_based, c) \ 58 (((c) == '/') \ 59 || (((c) == '\\') && (dos_based))) 60 61 #define HAS_DRIVE_SPEC_1(dos_based, f) \ 62 ((f)[0] && ((f)[1] == ':') && (dos_based)) 63 64 /* Remove the drive spec from F, assuming HAS_DRIVE_SPEC (f). 65 The result is a pointer to the remainder of F. */ 66 #define STRIP_DRIVE_SPEC(f) ((f) + 2) 67 68 #define IS_DOS_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (1, c) 69 #define IS_DOS_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (1, f) 70 #define HAS_DOS_DRIVE_SPEC(f) HAS_DRIVE_SPEC_1 (1, f) 71 72 #define IS_UNIX_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (0, c) 73 #define IS_UNIX_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (0, f) 74 75 /* Note that when DOS_BASED is true, IS_ABSOLUTE_PATH accepts d:foo as 76 well, although it is only semi-absolute. This is because the users 77 of IS_ABSOLUTE_PATH want to know whether to prepend the current 78 working directory to a file name, which should not be done with a 79 name like d:foo. */ 80 #define IS_ABSOLUTE_PATH_1(dos_based, f) \ 81 (IS_DIR_SEPARATOR_1 (dos_based, (f)[0]) \ 82 || HAS_DRIVE_SPEC_1 (dos_based, f)) 83 84 extern int filename_cmp (const char *s1, const char *s2); 85 #define FILENAME_CMP(s1, s2) filename_cmp(s1, s2) 86 87 extern int filename_ncmp (const char *s1, const char *s2, 88 size_t n); 89 90 extern hashval_t filename_hash (const void *s); 91 92 extern int filename_eq (const void *s1, const void *s2); 93 94 extern int canonical_filename_eq (const char *a, const char *b); 95 96 #ifdef __cplusplus 97 } 98 #endif 99 100 #endif /* FILENAMES_H */ 101