579 lines
14 KiB
C++
579 lines
14 KiB
C++
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// File: crn_file_utils.cpp
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// See Copyright Notice and license at the end of inc/crnlib.h
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#include "crn_core.h"
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#include "crn_file_utils.h"
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#include "crn_strutils.h"
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#if CRNLIB_USE_WIN32_API
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#include "crn_winhdr.h"
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#endif
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#ifdef WIN32
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#include <direct.h>
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#endif
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#ifdef __GNUC__
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#include <sys/stat.h>
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#include <sys/stat.h>
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#include <libgen.h>
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#endif
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namespace crnlib
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{
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#if CRNLIB_USE_WIN32_API
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bool file_utils::is_read_only(const char* pFilename)
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{
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uint32 dst_file_attribs = GetFileAttributesA(pFilename);
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if (dst_file_attribs == INVALID_FILE_ATTRIBUTES)
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return false;
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if (dst_file_attribs & FILE_ATTRIBUTE_READONLY)
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return true;
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return false;
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}
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bool file_utils::disable_read_only(const char* pFilename)
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{
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uint32 dst_file_attribs = GetFileAttributesA(pFilename);
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if (dst_file_attribs == INVALID_FILE_ATTRIBUTES)
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return false;
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if (dst_file_attribs & FILE_ATTRIBUTE_READONLY)
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{
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dst_file_attribs &= ~FILE_ATTRIBUTE_READONLY;
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if (SetFileAttributesA(pFilename, dst_file_attribs))
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return true;
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}
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return false;
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}
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bool file_utils::is_older_than(const char* pSrcFilename, const char* pDstFilename)
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{
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WIN32_FILE_ATTRIBUTE_DATA src_file_attribs;
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const BOOL src_file_exists = GetFileAttributesExA(pSrcFilename, GetFileExInfoStandard, &src_file_attribs);
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WIN32_FILE_ATTRIBUTE_DATA dst_file_attribs;
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const BOOL dest_file_exists = GetFileAttributesExA(pDstFilename, GetFileExInfoStandard, &dst_file_attribs);
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if ((dest_file_exists) && (src_file_exists))
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{
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LONG timeComp = CompareFileTime(&src_file_attribs.ftLastWriteTime, &dst_file_attribs.ftLastWriteTime);
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if (timeComp < 0)
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return true;
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}
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return false;
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}
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bool file_utils::does_file_exist(const char* pFilename)
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{
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const DWORD fullAttributes = GetFileAttributesA(pFilename);
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if (fullAttributes == INVALID_FILE_ATTRIBUTES)
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return false;
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if (fullAttributes & FILE_ATTRIBUTE_DIRECTORY)
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return false;
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return true;
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}
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bool file_utils::does_dir_exist(const char* pDir)
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{
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//-- Get the file attributes.
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DWORD fullAttributes = GetFileAttributesA(pDir);
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if (fullAttributes == INVALID_FILE_ATTRIBUTES)
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return false;
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if (fullAttributes & FILE_ATTRIBUTE_DIRECTORY)
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return true;
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return false;
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}
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bool file_utils::get_file_size(const char* pFilename, uint64& file_size)
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{
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file_size = 0;
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WIN32_FILE_ATTRIBUTE_DATA attr;
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if (0 == GetFileAttributesExA(pFilename, GetFileExInfoStandard, &attr))
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return false;
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if (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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return false;
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file_size = static_cast<uint64>(attr.nFileSizeLow) | (static_cast<uint64>(attr.nFileSizeHigh) << 32U);
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return true;
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}
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#elif defined( __GNUC__ )
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bool file_utils::is_read_only(const char* pFilename)
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{
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pFilename;
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// TODO
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return false;
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}
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bool file_utils::disable_read_only(const char* pFilename)
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{
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pFilename;
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// TODO
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return false;
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}
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bool file_utils::is_older_than(const char *pSrcFilename, const char* pDstFilename)
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{
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pSrcFilename, pDstFilename;
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// TODO
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return false;
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}
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bool file_utils::does_file_exist(const char* pFilename)
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{
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struct stat stat_buf;
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int result = stat(pFilename, &stat_buf);
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if (result)
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return false;
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if (S_ISREG(stat_buf.st_mode))
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return true;
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return false;
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}
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bool file_utils::does_dir_exist(const char* pDir)
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{
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struct stat stat_buf;
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int result = stat(pDir, &stat_buf);
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if (result)
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return false;
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if (S_ISDIR(stat_buf.st_mode) || S_ISLNK(stat_buf.st_mode))
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return true;
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return false;
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}
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bool file_utils::get_file_size(const char* pFilename, uint64& file_size)
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{
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file_size = 0;
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struct stat stat_buf;
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int result = stat(pFilename, &stat_buf);
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if (result)
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return false;
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if (!S_ISREG(stat_buf.st_mode))
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return false;
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file_size = stat_buf.st_size;
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return true;
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}
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#else
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bool file_utils::is_read_only(const char* pFilename)
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{
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return false;
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}
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bool file_utils::disable_read_only(const char* pFilename)
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{
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pFilename;
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// TODO
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return false;
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}
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bool file_utils::is_older_than(const char *pSrcFilename, const char* pDstFilename)
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{
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return false;
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}
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bool file_utils::does_file_exist(const char* pFilename)
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{
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FILE* pFile;
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crn_fopen(&pFile, pFilename, "rb");
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if (!pFile)
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return false;
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fclose(pFile);
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return true;
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}
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bool file_utils::does_dir_exist(const char* pDir)
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{
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return false;
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}
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bool file_utils::get_file_size(const char* pFilename, uint64& file_size)
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{
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FILE* pFile;
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crn_fopen(&pFile, pFilename, "rb");
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if (!pFile)
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return false;
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crn_fseek(pFile, 0, SEEK_END);
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file_size = crn_ftell(pFile);
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fclose(pFile);
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return true;
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}
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#endif
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bool file_utils::get_file_size(const char* pFilename, uint32& file_size)
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{
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uint64 file_size64;
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if (!get_file_size(pFilename, file_size64))
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{
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file_size = 0;
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return false;
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}
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if (file_size64 > cUINT32_MAX)
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file_size64 = cUINT32_MAX;
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file_size = static_cast<uint32>(file_size64);
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return true;
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}
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bool file_utils::is_path_separator(char c)
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{
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#ifdef WIN32
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return (c == '/') || (c == '\\');
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#else
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return (c == '/');
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#endif
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}
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bool file_utils::is_path_or_drive_separator(char c)
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{
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#ifdef WIN32
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return (c == '/') || (c == '\\') || (c == ':');
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#else
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return (c == '/');
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#endif
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}
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bool file_utils::is_drive_separator(char c)
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{
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#ifdef WIN32
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return (c == ':');
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#else
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c;
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return false;
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#endif
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}
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bool file_utils::split_path(const char* p, dynamic_string* pDrive, dynamic_string* pDir, dynamic_string* pFilename, dynamic_string* pExt)
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{
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CRNLIB_ASSERT(p);
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#ifdef WIN32
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char drive_buf[_MAX_DRIVE];
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char dir_buf[_MAX_DIR];
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char fname_buf[_MAX_FNAME];
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char ext_buf[_MAX_EXT];
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#ifdef _MSC_VER
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// Compiling with MSVC
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errno_t error = _splitpath_s(p,
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pDrive ? drive_buf : NULL, pDrive ? _MAX_DRIVE : 0,
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pDir ? dir_buf : NULL, pDir ? _MAX_DIR : 0,
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pFilename ? fname_buf : NULL, pFilename ? _MAX_FNAME : 0,
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pExt ? ext_buf : NULL, pExt ? _MAX_EXT : 0);
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if (error != 0)
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return false;
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#else
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// Compiling with MinGW
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_splitpath(p,
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pDrive ? drive_buf : NULL,
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pDir ? dir_buf : NULL,
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pFilename ? fname_buf : NULL,
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pExt ? ext_buf : NULL);
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#endif
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if (pDrive) *pDrive = drive_buf;
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if (pDir) *pDir = dir_buf;
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if (pFilename) *pFilename = fname_buf;
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if (pExt) *pExt = ext_buf;
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#else
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char dirtmp[1024];
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char nametmp[1024];
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strcpy_safe(dirtmp, sizeof(dirtmp), p);
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strcpy_safe(nametmp, sizeof(nametmp), p);
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if (pDrive) pDrive->clear();
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const char *pDirName = dirname(dirtmp);
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if (!pDirName)
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return false;
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if (pDir)
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{
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pDir->set(pDirName);
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if ((!pDir->is_empty()) && (pDir->back() != '/'))
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pDir->append_char('/');
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}
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const char *pBaseName = basename(nametmp);
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if (!pBaseName)
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return false;
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if (pFilename)
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{
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pFilename->set(pBaseName);
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remove_extension(*pFilename);
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}
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if (pExt)
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{
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pExt->set(pBaseName);
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get_extension(*pExt);
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*pExt = "." + *pExt;
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}
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#endif // #ifdef WIN32
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return true;
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}
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bool file_utils::split_path(const char* p, dynamic_string& path, dynamic_string& filename)
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{
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dynamic_string temp_drive, temp_path, temp_ext;
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if (!split_path(p, &temp_drive, &temp_path, &filename, &temp_ext))
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return false;
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filename += temp_ext;
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combine_path(path, temp_drive.get_ptr(), temp_path.get_ptr());
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return true;
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}
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bool file_utils::get_pathname(const char* p, dynamic_string& path)
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{
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dynamic_string temp_drive, temp_path;
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if (!split_path(p, &temp_drive, &temp_path, NULL, NULL))
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return false;
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combine_path(path, temp_drive.get_ptr(), temp_path.get_ptr());
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return true;
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}
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bool file_utils::get_filename(const char* p, dynamic_string& filename)
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{
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dynamic_string temp_ext;
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if (!split_path(p, NULL, NULL, &filename, &temp_ext))
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return false;
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filename += temp_ext;
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return true;
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}
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void file_utils::combine_path(dynamic_string& dst, const char* pA, const char* pB)
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{
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dynamic_string temp(pA);
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if ((!temp.is_empty()) && (!is_path_separator(pB[0])))
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{
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char c = temp[temp.get_len() - 1];
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if (!is_path_separator(c))
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temp.append_char(CRNLIB_PATH_SEPERATOR_CHAR);
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}
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temp += pB;
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dst.swap(temp);
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}
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void file_utils::combine_path(dynamic_string& dst, const char* pA, const char* pB, const char* pC)
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{
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combine_path(dst, pA, pB);
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combine_path(dst, dst.get_ptr(), pC);
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}
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bool file_utils::full_path(dynamic_string& path)
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||
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{
|
||
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#ifdef WIN32
|
||
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char buf[1024];
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||
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char* p = _fullpath(buf, path.get_ptr(), sizeof(buf));
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||
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if (!p)
|
||
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return false;
|
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#else
|
||
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char buf[PATH_MAX];
|
||
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char* p;
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||
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dynamic_string pn, fn;
|
||
|
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split_path(path.get_ptr(), pn, fn);
|
||
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if ((fn == ".") || (fn == ".."))
|
||
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{
|
||
|
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p = realpath(path.get_ptr(), buf);
|
||
|
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if (!p)
|
||
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return false;
|
||
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path.set(buf);
|
||
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}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (pn.is_empty())
|
||
|
|
pn = "./";
|
||
|
|
p = realpath(pn.get_ptr(), buf);
|
||
|
|
if (!p)
|
||
|
|
return false;
|
||
|
|
combine_path(path, buf, fn.get_ptr());
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool file_utils::get_extension(dynamic_string& filename)
|
||
|
|
{
|
||
|
|
int sep = -1;
|
||
|
|
#ifdef WIN32
|
||
|
|
sep = filename.find_right('\\');
|
||
|
|
#endif
|
||
|
|
if (sep < 0)
|
||
|
|
sep = filename.find_right('/');
|
||
|
|
|
||
|
|
int dot = filename.find_right('.');
|
||
|
|
if (dot < sep)
|
||
|
|
{
|
||
|
|
filename.clear();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
filename.right(dot + 1);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool file_utils::remove_extension(dynamic_string& filename)
|
||
|
|
{
|
||
|
|
int sep = -1;
|
||
|
|
#ifdef WIN32
|
||
|
|
sep = filename.find_right('\\');
|
||
|
|
#endif
|
||
|
|
if (sep < 0)
|
||
|
|
sep = filename.find_right('/');
|
||
|
|
|
||
|
|
int dot = filename.find_right('.');
|
||
|
|
if (dot < sep)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
filename.left(dot);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool file_utils::create_path(const dynamic_string& fullpath)
|
||
|
|
{
|
||
|
|
bool got_unc = false; got_unc;
|
||
|
|
dynamic_string cur_path;
|
||
|
|
|
||
|
|
const int l = fullpath.get_len();
|
||
|
|
|
||
|
|
int n = 0;
|
||
|
|
while (n < l)
|
||
|
|
{
|
||
|
|
const char c = fullpath.get_ptr()[n];
|
||
|
|
|
||
|
|
const bool sep = is_path_separator(c);
|
||
|
|
const bool back_sep = is_path_separator(cur_path.back());
|
||
|
|
const bool is_last_char = (n == (l - 1));
|
||
|
|
|
||
|
|
if ( ((sep) && (!back_sep)) || (is_last_char) )
|
||
|
|
{
|
||
|
|
if ((is_last_char) && (!sep))
|
||
|
|
cur_path.append_char(c);
|
||
|
|
|
||
|
|
bool valid = !cur_path.is_empty();
|
||
|
|
|
||
|
|
#ifdef WIN32
|
||
|
|
// reject obvious stuff (drives, beginning of UNC paths):
|
||
|
|
// c:\b\cool
|
||
|
|
// \\machine\blah
|
||
|
|
// \cool\blah
|
||
|
|
if ((cur_path.get_len() == 2) && (cur_path[1] == ':'))
|
||
|
|
valid = false;
|
||
|
|
else if ((cur_path.get_len() >= 2) && (cur_path[0] == '\\') && (cur_path[1] == '\\'))
|
||
|
|
{
|
||
|
|
if (!got_unc)
|
||
|
|
valid = false;
|
||
|
|
got_unc = true;
|
||
|
|
}
|
||
|
|
else if (cur_path == "\\")
|
||
|
|
valid = false;
|
||
|
|
#endif
|
||
|
|
if (cur_path == "/")
|
||
|
|
valid = false;
|
||
|
|
|
||
|
|
if ((valid) && (cur_path.get_len()))
|
||
|
|
{
|
||
|
|
#ifdef WIN32
|
||
|
|
_mkdir(cur_path.get_ptr());
|
||
|
|
#else
|
||
|
|
mkdir(cur_path.get_ptr(), S_IRWXU | S_IRWXG | S_IRWXO );
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
cur_path.append_char(c);
|
||
|
|
|
||
|
|
n++;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void file_utils::trim_trailing_seperator(dynamic_string& path)
|
||
|
|
{
|
||
|
|
if ((path.get_len()) && (is_path_separator(path.back())))
|
||
|
|
path.truncate(path.get_len() - 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
// See http://www.codeproject.com/KB/string/wildcmp.aspx
|
||
|
|
int file_utils::wildcmp(const char* pWild, const char* pString)
|
||
|
|
{
|
||
|
|
const char* cp = NULL, *mp = NULL;
|
||
|
|
|
||
|
|
while ((*pString) && (*pWild != '*'))
|
||
|
|
{
|
||
|
|
if ((*pWild != *pString) && (*pWild != '?'))
|
||
|
|
return 0;
|
||
|
|
pWild++;
|
||
|
|
pString++;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Either *pString=='\0' or *pWild='*' here.
|
||
|
|
|
||
|
|
while (*pString)
|
||
|
|
{
|
||
|
|
if (*pWild == '*')
|
||
|
|
{
|
||
|
|
if (!*++pWild)
|
||
|
|
return 1;
|
||
|
|
mp = pWild;
|
||
|
|
cp = pString+1;
|
||
|
|
}
|
||
|
|
else if ((*pWild == *pString) || (*pWild == '?'))
|
||
|
|
{
|
||
|
|
pWild++;
|
||
|
|
pString++;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pWild = mp;
|
||
|
|
pString = cp++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
while (*pWild == '*')
|
||
|
|
pWild++;
|
||
|
|
|
||
|
|
return !*pWild;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool file_utils::write_buf_to_file(const char* pPath, const void* pData, size_t data_size)
|
||
|
|
{
|
||
|
|
FILE *pFile = NULL;
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
// Compiling with MSVC
|
||
|
|
if (fopen_s(&pFile, pPath, "wb"))
|
||
|
|
return false;
|
||
|
|
#else
|
||
|
|
pFile = fopen(pPath, "wb");
|
||
|
|
#endif
|
||
|
|
if (!pFile)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
bool success = fwrite(pData, 1, data_size, pFile) == data_size;
|
||
|
|
|
||
|
|
fclose(pFile);
|
||
|
|
|
||
|
|
return success;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace crnlib
|