93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
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/*
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* Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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#if defined (__cplusplus)
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extern "C" {
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#endif
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/*-****************************************
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* Dependencies
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******************************************/
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#include "util.h"
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U32 UTIL_isDirectory(const char* infilename)
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{
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int r;
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stat_t statbuf;
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#if defined(_MSC_VER)
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r = _stat64(infilename, &statbuf);
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if (!r && (statbuf.st_mode & _S_IFDIR)) return 1;
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#else
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r = stat(infilename, &statbuf);
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if (!r && S_ISDIR(statbuf.st_mode)) return 1;
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#endif
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return 0;
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}
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U32 UTIL_isLink(const char* infilename)
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{
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/* macro guards, as defined in : https://linux.die.net/man/2/lstat */
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#ifndef __STRICT_ANSI__
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#if defined(_BSD_SOURCE) \
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|| (defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)) \
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|| (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) \
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|| (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) \
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|| (defined(__APPLE__) && defined(__MACH__))
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int r;
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stat_t statbuf;
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r = lstat(infilename, &statbuf);
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if (!r && S_ISLNK(statbuf.st_mode)) return 1;
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#endif
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#endif
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(void)infilename;
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return 0;
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}
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U64 UTIL_getFileSize(const char* infilename)
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{
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if (!UTIL_isRegularFile(infilename)) return UTIL_FILESIZE_UNKNOWN;
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{ int r;
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#if defined(_MSC_VER)
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struct __stat64 statbuf;
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r = _stat64(infilename, &statbuf);
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if (r || !(statbuf.st_mode & S_IFREG)) return UTIL_FILESIZE_UNKNOWN;
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#elif defined(__MINGW32__) && defined (__MSVCRT__)
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struct _stati64 statbuf;
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r = _stati64(infilename, &statbuf);
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if (r || !(statbuf.st_mode & S_IFREG)) return UTIL_FILESIZE_UNKNOWN;
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#else
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struct stat statbuf;
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r = stat(infilename, &statbuf);
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if (r || !S_ISREG(statbuf.st_mode)) return UTIL_FILESIZE_UNKNOWN;
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#endif
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return (U64)statbuf.st_size;
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}
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}
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U64 UTIL_getTotalFileSize(const char* const * const fileNamesTable, unsigned nbFiles)
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{
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U64 total = 0;
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int error = 0;
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unsigned n;
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for (n=0; n<nbFiles; n++) {
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U64 const size = UTIL_getFileSize(fileNamesTable[n]);
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error |= (size == UTIL_FILESIZE_UNKNOWN);
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total += size;
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}
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return error ? UTIL_FILESIZE_UNKNOWN : total;
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}
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#if defined (__cplusplus)
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}
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#endif
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