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Diffstat (limited to 'utilities/smb4k_cat.cpp')
| -rw-r--r-- | utilities/smb4k_cat.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/utilities/smb4k_cat.cpp b/utilities/smb4k_cat.cpp new file mode 100644 index 0000000..ce1387b --- /dev/null +++ b/utilities/smb4k_cat.cpp @@ -0,0 +1,206 @@ +/*************************************************************************** + smb4k_cat - This utility behaves essentially like 'cat'. It is + used to "read" system configuration files and is part of Smb4K. + ------------------- + begin : Mi Nov 2 2005 + copyright : (C) 2005-2007 by Alexander Reinholdt + email : dustpuppy@users.berlios.de + ***************************************************************************/ + +/*************************************************************************** + * 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., 51 Franklin Street, Fifth Floor, Boston, * + * MA 02110-1301 USA * + ***************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <locale.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <getopt.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <fstream> +#include <iostream> +using namespace std; + +#define MAX_LINE_LENGTH 1024 +#define SMB4K_CAT_VERSION "0.8" + +void info() +{ + cout << "This is smb4k_cat (version " << SMB4K_CAT_VERSION << "), the cat utility of Smb4K" << endl; + cout << "Copyright (C) 2005-2007, Alexander Reinholdt" << endl; + cout << endl; + cout << "Usage:" << endl; + cout << " smb4k_cat {file}" << endl; + cout << " smb4k_cat --help" << endl; + cout << " smb4k_cat --version" << endl; + cout << endl; + cout << "Arguments:" << endl; + cout << " {file}\tThe (full) path of the file that should be printed to stdout." << endl; + cout << endl; + cout << " --help\tDisplay this help screen and exit." << endl; + cout << " --version\tDisplay the version information and exit." << endl; + cout << endl; +} + + +void version() +{ + cout << "Version: " << SMB4K_CAT_VERSION << endl; +} + + +int main( int argc, char *argv[] ) +{ + (void) setlocale( LC_ALL, "" ); + + if ( argc < 2 ) + { + info(); + exit( EXIT_FAILURE ); + } + + char *filename = NULL; + + int c; + + while ( 1 ) + { + int option_index = 0; + + static struct option long_options[] = + { + { "help", 0, 0, 0 }, + { "version", 0, 0, 0 }, + { 0, 0, 0, 0 } + }; + + c = getopt_long( argc, argv, "", long_options, &option_index ); + + if ( c == -1 ) + { + break; + } + + switch ( c ) + { + case 0: + { + int len = strlen( long_options[option_index].name ) + 1; + char opt[len]; + opt[0] = '\0'; + (void) strncpy( opt, long_options[option_index].name, len ); + opt[len-1] = '\0'; + + if ( !strncmp( opt, "help", len ) ) + { + info(); + exit( EXIT_SUCCESS ); + } + else if ( !strncmp( opt, "version", len ) ) + { + version(); + exit( EXIT_SUCCESS ); + } + else + { + break; + } + + break; + } + case '?': + { + // Abort the program if an unknown option + // is encountered: + exit( EXIT_FAILURE ); + } + default: + { + break; + } + } + } + + if ( optind < argc ) + { + // If we have an existing regular file, read it, + // display its contents and exit. + while ( optind < argc ) + { + struct stat file_stat; + + if ( lstat( argv[optind], &file_stat ) == -1 ) + { + int err = errno; + cerr << "smb4k_cat: " << strerror( err ) << endl; + exit( EXIT_FAILURE ); + } + + if ( !filename ) + { + int len = strlen( argv[optind] ) + 1; + filename = new char[len]; + filename[0] = '\0'; + (void) strncpy( filename, argv[optind], len ); + filename[len-1] = '\0'; + } + else + { + break; + } + + optind++; + } + } + + if ( filename ) + { + FILE *fd; + + if ( (fd = fopen( filename, "r" )) == NULL ) + { + int err = errno; + cerr << "smb4k_cat: " << strerror( err ) << endl; + exit( EXIT_FAILURE ); + } + + char line[MAX_LINE_LENGTH]; + line[0] = '\0'; + + while ( fgets( line, MAX_LINE_LENGTH, fd ) != NULL ) + { + cout << line; + } + + fclose( fd ); + } + else + { + // This is redundant, but we'll keep it regardless. + cerr << "smb4k_cat: No file specified" << endl; + exit( EXIT_FAILURE ); + } + + exit( EXIT_SUCCESS ); +} + |