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File.cpp Go to the documentation of this file. /* Copyright (C) 2004-2008 Anders Hedstrom This library is made available under the terms of the GNU GPL. If you would like to use this library in a closed-source application, a separate license agreement is available. For information about the closed-source license agreement for the C++ sockets library, please visit http://www.alhem.net/Sockets/license.html and/or email license@alhem.net. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stdarg.h> #include <sys/types.h> #include <sys/stat.h> #include "File.h" #ifdef SOCKETS_NAMESPACE namespace SOCKETS_NAMESPACE { #endif File::File() :m_fil(NULL) ,m_rptr(0) ,m_wptr(0) { } File::~File() { fclose(); } bool File::fopen(const std::string& path, const std::string& mode) { m_path = path; m_mode = mode; m_fil = ::fopen(path.c_str(), mode.c_str()); return m_fil ? true : false; } void File::fclose() const { if (m_fil) { ::fclose(m_fil); m_fil = NULL; } } size_t File::fread(char *ptr, size_t size, size_t nmemb) const { size_t r = 0; if (m_fil) { fseek(m_fil, m_rptr, SEEK_SET); r = ::fread(ptr, size, nmemb, m_fil); m_rptr = ftell(m_fil); } return r; } size_t File::fwrite(const char *ptr, size_t size, size_t nmemb) { size_t r = 0; if (m_fil) { fseek(m_fil, m_wptr, SEEK_SET); r = ::fwrite(ptr, size, nmemb, m_fil); m_wptr = ftell(m_fil); } return r; } char *File::fgets(char *s, int size) const { char *r = NULL; if (m_fil) { fseek(m_fil, m_rptr, SEEK_SET); r = ::fgets(s, size, m_fil); m_rptr = ftell(m_fil); } return r; } void File::fprintf(const char *format, ...) { if (!m_fil) return; va_list ap; va_start(ap, format); fseek(m_fil, m_rptr, SEEK_SET); vfprintf(m_fil, format, ap); m_rptr = ftell(m_fil); va_end(ap); } off_t File::size() const { struct stat st; if (stat(m_path.c_str(), &st) == -1) { return 0; } return st.st_size; } bool File::eof() const { if (m_fil) { if (feof(m_fil)) return true; } return false; } void File::reset_read() const { m_rptr = 0; } void File::reset_write() { m_wptr = 0; } #ifdef SOCKETS_NAMESPACE } #endif

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