more_u.c - toolbox - Rivoreo Source Code Repositories

 /*	more - toolbox
 	Copyright 2015-2016 Rivoreo

 	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.
 */

 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <errno.h>

 #ifdef _WIN32
 #include <windows.h>
 #include <winioctl.h>
 #ifdef _WIN32_WCE
 #ifndef IOCTL_CONSOLE_SETMODE
 #define IOCTL_CONSOLE_SETMODE CTL_CODE(FILE_DEVICE_CONSOLE, 1, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #endif
 #ifndef IOCTL_CONSOLE_GETMODE
 #define IOCTL_CONSOLE_GETMODE CTL_CODE(FILE_DEVICE_CONSOLE, 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #endif
 #ifndef IOCTL_CONSOLE_GETSCREENROWS
 #define IOCTL_CONSOLE_GETSCREENROWS CTL_CODE(FILE_DEVICE_CONSOLE, 7, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #endif
 #ifndef IOCTL_CONSOLE_GETSCREENCOLS
 #define IOCTL_CONSOLE_GETSCREENCOLS CTL_CODE(FILE_DEVICE_CONSOLE, 9, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #endif
 #define CECONSOLE_MODE_ECHO_INPUT 0x0001
 #define CECONSOLE_MODE_LINE_INPUT 0x0002
 #define CECONSOLE_MODE_PROCESSED_OUTPUT 0x0004
 #ifndef FILE_DEVICE_CONSOLE
 #define FILE_DEVICE_CONSOLE 0x00000102
 #endif
 #else
 #include <conio.h>
 #endif		/* _WIN32_WCE */
 #else
 #include <sys/ioctl.h>
 #include <termios.h>
 #endif

 #if !defined _WIN32 || defined _WIN32_WCE || defined _WINDOWSNT_NATIVE
 /* Initialize new terminal i/o settings */
 #ifdef _WIN32_WCE
 unsigned long int old, new;

 static void set_terminal(int echo) {
 	unsigned long int rsize;
 	DeviceIoControl((void *)STDIN_FILENO, IOCTL_CONSOLE_GETMODE, NULL, 0, &old, sizeof old, &rsize, NULL);
 	new = old;
 	if(echo) new |= CECONSOLE_MODE_ECHO_INPUT;
 	else new &= ~CECONSOLE_MODE_ECHO_INPUT;
 	new &= ~CECONSOLE_MODE_LINE_INPUT;
 	DeviceIoControl((void *)STDIN_FILENO, IOCTL_CONSOLE_SETMODE, &new, sizeof new, NULL, 0, &rsize, NULL);
 }

 static void reset_terminal() {
 	unsigned long int rsize;
 	DeviceIoControl((void *)STDIN_FILENO, IOCTL_CONSOLE_SETMODE, &old, sizeof old, NULL, 0, &rsize, NULL);
 }
 #else
 static struct winsize winsz;
 static struct termios old, new;

 static void set_terminal(int echo) {
 	tcgetattr(STDIN_FILENO, &old);			/* grab old terminal i/o settings */
 	new = old;					/* make new settings same as old settings */
 	new.c_iflag &= ~ICRNL;				/* Translate carriage return to newline on input (unless IGNCR is set) */
 	new.c_lflag &= ~ICANON;				/* disable buffered i/o */
 	if(echo) new.c_lflag |= ECHO;			/* set echo mode */
 	else new.c_lflag &= ~ECHO;
 	tcsetattr(STDIN_FILENO, TCSANOW, &new);		/* use these new terminal i/o settings now */
 }

 /* Restore old terminal i/o settings */
 static void reset_terminal(void) {
 	tcsetattr(STDIN_FILENO, TCSANOW, &old);
 }
 #endif

 /* Read 1 character - echo defines echo mode */
 static char getch_(int echo) {
 	char ch;
 	set_terminal(echo);
 	ch = getchar();
 	reset_terminal();
 	return ch;
 }

 /* Read 1 character without echo */
 static char getch(void) {
 	return getch_(0);
 }

 #if 0		/* Not used */
 /* Read 1 character with echo */
 static char getche(void) {
 	return getch_(1);
 }
 #endif
 #endif

 #define SKIP_MULTI_BLACK_LINES (1 << 0)

 unsigned int term_row;

 static int page_col, page_row;
 static char filename[1024];

 static int usage(char *name) {
 	fprintf(stdout, "Usage: %s [<options>] [<file>]\n\n"
 		"Options:\n"
 		"	-s	Squeeze multiple blank lines into a single line\n"
 		"	-V	Display version information and exit\n\n", name);
 	return 1;
 }

 static int read_more() {
 	switch(getch()) {
 		case 13:
 			page_row++;
 #ifdef _WIN32
 			printf("\r		\r");
 #else
 			/* Clean the current line */
 			printf("\x1b[1K");
 			/* Set the cursor to the start of the line */
 			printf("\x1b[%u;0H", term_row);
 #endif
 			break;
 		case 32:
 			page_row = term_row;
 #ifdef _WIN32
 			printf("\r		\r");
 #else
 			/* Clean the current line */
 			printf("\x1b[1K");
 			/* Set the cursor to the start of the line */
 			printf("\x1b[%u;0H", term_row);
 #endif
 			break;
 		case 'q':
 			putchar('\n');
 			exit(0);
 		default:
 #ifdef _WIN32
 			printf("\r		\r");
 #else
 			/* Clean the current line */
 			printf("\x1b[1K");
 			/* Set the cursor to the start of the line */
 			printf("\x1b[%u;0H", term_row);
 #endif
 			/* If none input, return 1 */
 			return 1;
 	}
 	return 0;
 }

 static int read_file(FILE *fp, int use_pipe, int flags) {
 	char line[page_col];
 	int seek;
 	off_t filesize = -1;
 	int black_line = 0;
 	if(!use_pipe) {
 		struct stat filestat;
 		stat(filename, &filestat);
 		filesize = filestat.st_size;
 	}
 	while(fgets(line, page_col, fp) != NULL) {
 		if((flags & SKIP_MULTI_BLACK_LINES)) {
 			if(*line == '\n') {
 				if(black_line) continue;
 				else black_line = 1;
 			} else black_line = 0;
 		}
 		if(page_row != 1) {
 			fprintf(stdout,"%s",line);
 			//fflush(stdout);
 			page_row--;
 		} else {
 			if(use_pipe) {
 				fprintf(stdout, "--More--");
 			} else {
 				seek = ftell(fp);
 				int percent = ((float)seek / (float)filesize) * 100;
 				fprintf(stdout, "--More-- (%%%d)", percent);
 			}
 			while(read_more() == 1) {
 				fprintf(stdout, "--More--");
 			}
 		}

 	}

 #if 0
 	// There is no need to read all data from a pipe that just for calculate the length
 	} else {
 		char **buff;
 		int i = 1;
 		char line[page_col];
 		/* First alloc */
 		buff = (char **)malloc(sizeof(char *));
 		if(!buff) return -1;
 		while(fgets(line, page_col, fp) != NULL) {
 			/* Alloc buff[i-1] */
 			buff[i-1] = (char *)malloc(sizeof(char)*page_col+1);
 			strcpy(buff[i-1], line);
 			i++;
 			/* realloc */
 			buff = (char **)realloc(buff, sizeof(char *)*i);
 			if(!buff) return -1;
 			//printf("%s",buff[i-1]);
 		}
 		if(close(STDIN_FILENO)) {
 			perror("STDIN_FILENO close faild");
 			return errno;
 		}
 		if((fp = fopen("/dev/tty", "r")) == NULL) {
 			perror("Error open TTY");
 			return errno;
 		}
 		int line_num = i -1;
 		int l = 0;
 		for(i-- ; i > 0; i--) {
 			if(page_row != 1) {
 				fprintf(stdout,"%s",buff[l]);
 				//fflush(stdout);
 				page_row--;
 			} else {
 				int percent = ((float)l/(float)line_num) * 100;
 				fprintf(stdout, "--More-- (%%%d)",percent);
 				read_more();
 			}
 			l++;
 		}
 		/* Free memory */
 		for(i=0; i<=line_num; i++) {
 			free(buff[i]);
 		}
 		free(buff);
 	}
 #endif
 /*	Should close in main
 	if(fclose(fp) != 0) {
 		perror("Error to close");
 		return errno;
 	}
 */
 	return 0;
 }

 #include "version.h"

 int more_main(int argc, char *argv[]) {
 	int use_tty = isatty(STDOUT_FILENO);
 	int use_pipe = !isatty(STDIN_FILENO);
 	int opt;

 	if(use_tty) {
 #ifdef _WINDOWSNT_NATIVE
 		// From Windows 2000
 		page_row = 31;
 		page_col = 78;
 #else
 #ifdef _WIN32
 #ifdef _WIN32_WCE
 		unsigned long int row, col, rsize;
 		if(!DeviceIoControl((void *)STDOUT_FILENO, IOCTL_CONSOLE_GETSCREENROWS, NULL, 0, &row, sizeof row, &rsize, NULL)) {
 			return -errno;
 		}
 		if(!DeviceIoControl((void *)STDOUT_FILENO, IOCTL_CONSOLE_GETSCREENCOLS, NULL, 0, &col, sizeof col, &rsize, NULL)) {
 			return -errno;
 		}

 		page_row = row;
 		page_col = col;
 #else
 		CONSOLE_SCREEN_BUFFER_INFO csbi;
 		if(!GetConsoleScreenBufferInfo((void *)STDOUT_FILENO, &csbi)) {
 			return 1;
 		}
 		page_row = csbi.srWindow.Right - csbi.srWindow.Left + 1;
 		page_col = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
 #endif
 		//fprintf(stderr, "%d, %d\n", page_col, page_row);
 #else
 		/*
 		 * Get terminal size
 		 *
 		 * struct winsize {
 		 *	unsigned short ws_row;
 		 *	unsigned short ws_col;
 		 *	unsigned short ws_xpixel;
 		 *	unsigned short ws_ypixel;
 		 *};
 		 */
 		if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsz) == -1) {
 			return -errno;
 		}

 		page_col = winsz.ws_col;
 		page_row = winsz.ws_row;
 #endif
 #endif
 		term_row = page_row;
 	} else {
 		//usage(argv[0]);
 		fprintf(stderr, "%s: Not a terminal\n", argv[0]);
 		return 1;
 	}

 	int flags = 0;
 	/* getopt */
 	while((opt = getopt(argc, argv, "sV")) != -1) {
 		switch(opt) {
 			case 's':
 				flags |= SKIP_MULTI_BLACK_LINES;
 				break;
 			case 'V':
 				fprintf(stdout,"%s, From ToolBox by Rivoreo\nToolBox version: " VERSION "\n", argv[0]);
 				return 0;
 			default:
 				usage(argv[0]);
 				return EXIT_FAILURE;
 		}
 	}
 	if(optind == argc && !use_pipe) {
 		usage(argv[0]);
 		return -1;
 	}

 	setvbuf(stdout, NULL, _IOLBF, 0);

 	int r = 0;
 	int fd = -1;
 	/*
 	 * Now only support open a file or pipe
 	 * So I dont use get opt now.
 	 */
 	FILE *fp;

 	if(argc != 1) {
 		strcpy(filename, argv[optind]);
 		fp = fopen(filename, "r");
 		if(!fp) {
 			perror("Error open file");
 			return 1;
 		}
 	} else if(argc == 1 && !use_pipe) {
 		usage(argv[0]);
 		return 1;
 	} else if(use_pipe) {
 #if defined _WIN32 && !defined _WINDOWSNT_NATIVE
 		fprintf(stderr, "%s: Reading from stdin is not supported yet\n", argv[0]);
 		return 1;
 #else
 		fd = dup(STDIN_FILENO);
 		if(fd == -1) {
 			perror("dup");
 			return 1;
 		}
 //#if defined _WIN32 && !defined _WIN32_WCE
 		//fp = stdin;
 //#else
 		fp = fdopen(fd, "r");
 		if(!fp) {
 			perror("Error open STDIN_FILENO");
 			return 1;
 		}
 		if(close(STDIN_FILENO) < 0) {
 			perror("close");
 			return 1;
 		}
 //#endif
 //#ifndef _WIN32
 		if(open("/dev/tty", O_RDONLY) != STDIN_FILENO) {
 			fprintf(stderr, "%s: Cannot open terminal for stdin\n", argv[0]);
 			return 1;
 		}
 //#endif
 #endif
 	} else {
 		fprintf(stderr, "%s: Cannot read from a terminal\n", argv[0]);
 		return 1;
 	}

 	if(read_file(fp, use_pipe, flags) < 0) {
 		perror(argv[0]);
 		r = 1;
 	}
 #if defined _WIN32 && !defined _WIN32_WNT_NATIVE
 	if(use_pipe) {
 		// Since our ToolBox may be used as a library, restore the original file
 		if(close(STDIN_FILENO) < 0) {
 			perror("close");
 			return 1;
 		}
 		if(dup(fd) != STDIN_FILENO) {
 			fprintf(stderr, "%s: Cannot restore original stdin\n", argv[0]);
 			return 1;
 		}
 		close(fd);
 	}
 #endif
 	fclose(fp);

 	return r;
 }
	/* more - toolbox
	Copyright 2015-2016 Rivoreo

	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.
	*/

	#include <stdio.h>
	#include <unistd.h>
	#include <string.h>
	#include <stdlib.h>
	#include <sys/types.h>
	#include <sys/stat.h>
	#include <fcntl.h>
	#include <errno.h>

	#ifdef _WIN32
	#include <windows.h>
	#include <winioctl.h>
	#ifdef _WIN32_WCE
	#ifndef IOCTL_CONSOLE_SETMODE
	#define IOCTL_CONSOLE_SETMODE CTL_CODE(FILE_DEVICE_CONSOLE, 1, METHOD_BUFFERED, FILE_ANY_ACCESS)
	#endif
	#ifndef IOCTL_CONSOLE_GETMODE
	#define IOCTL_CONSOLE_GETMODE CTL_CODE(FILE_DEVICE_CONSOLE, 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
	#endif
	#ifndef IOCTL_CONSOLE_GETSCREENROWS
	#define IOCTL_CONSOLE_GETSCREENROWS CTL_CODE(FILE_DEVICE_CONSOLE, 7, METHOD_BUFFERED, FILE_ANY_ACCESS)
	#endif
	#ifndef IOCTL_CONSOLE_GETSCREENCOLS
	#define IOCTL_CONSOLE_GETSCREENCOLS CTL_CODE(FILE_DEVICE_CONSOLE, 9, METHOD_BUFFERED, FILE_ANY_ACCESS)
	#endif
	#define CECONSOLE_MODE_ECHO_INPUT 0x0001
	#define CECONSOLE_MODE_LINE_INPUT 0x0002
	#define CECONSOLE_MODE_PROCESSED_OUTPUT 0x0004
	#ifndef FILE_DEVICE_CONSOLE
	#define FILE_DEVICE_CONSOLE 0x00000102
	#endif
	#else
	#include <conio.h>
	#endif /* _WIN32_WCE */
	#else
	#include <sys/ioctl.h>
	#include <termios.h>
	#endif

	#if !defined _WIN32 \|\| defined _WIN32_WCE \|\| defined _WINDOWSNT_NATIVE
	/* Initialize new terminal i/o settings */
	#ifdef _WIN32_WCE
	unsigned long int old, new;

	static void set_terminal(int echo) {
	unsigned long int rsize;
	DeviceIoControl((void *)STDIN_FILENO, IOCTL_CONSOLE_GETMODE, NULL, 0, &old, sizeof old, &rsize, NULL);
	new = old;
	if(echo) new \|= CECONSOLE_MODE_ECHO_INPUT;
	else new &= ~CECONSOLE_MODE_ECHO_INPUT;
	new &= ~CECONSOLE_MODE_LINE_INPUT;
	DeviceIoControl((void *)STDIN_FILENO, IOCTL_CONSOLE_SETMODE, &new, sizeof new, NULL, 0, &rsize, NULL);
	}

	static void reset_terminal() {
	unsigned long int rsize;
	DeviceIoControl((void *)STDIN_FILENO, IOCTL_CONSOLE_SETMODE, &old, sizeof old, NULL, 0, &rsize, NULL);
	}
	#else
	static struct winsize winsz;
	static struct termios old, new;

	static void set_terminal(int echo) {
	tcgetattr(STDIN_FILENO, &old); /* grab old terminal i/o settings */
	new = old; /* make new settings same as old settings */
	new.c_iflag &= ~ICRNL; /* Translate carriage return to newline on input (unless IGNCR is set) */
	new.c_lflag &= ~ICANON; /* disable buffered i/o */
	if(echo) new.c_lflag \|= ECHO; /* set echo mode */
	else new.c_lflag &= ~ECHO;
	tcsetattr(STDIN_FILENO, TCSANOW, &new); /* use these new terminal i/o settings now */
	}

	/* Restore old terminal i/o settings */
	static void reset_terminal(void) {
	tcsetattr(STDIN_FILENO, TCSANOW, &old);
	}
	#endif

	/* Read 1 character - echo defines echo mode */
	static char getch_(int echo) {
	char ch;
	set_terminal(echo);
	ch = getchar();
	reset_terminal();
	return ch;
	}

	/* Read 1 character without echo */
	static char getch(void) {
	return getch_(0);
	}

	#if 0 /* Not used */
	/* Read 1 character with echo */
	static char getche(void) {
	return getch_(1);
	}
	#endif
	#endif

	#define SKIP_MULTI_BLACK_LINES (1 << 0)

	unsigned int term_row;

	static int page_col, page_row;
	static char filename[1024];

	static int usage(char *name) {
	fprintf(stdout, "Usage: %s [<options>] [<file>]\n\n"
	"Options:\n"
	" -s Squeeze multiple blank lines into a single line\n"
	" -V Display version information and exit\n\n", name);
	return 1;
	}

	static int read_more() {
	switch(getch()) {
	case 13:
	page_row++;
	#ifdef _WIN32
	printf("\r \r");
	#else
	/* Clean the current line */
	printf("\x1b[1K");
	/* Set the cursor to the start of the line */
	printf("\x1b[%u;0H", term_row);
	#endif
	break;
	case 32:
	page_row = term_row;
	#ifdef _WIN32
	printf("\r \r");
	#else
	/* Clean the current line */
	printf("\x1b[1K");
	/* Set the cursor to the start of the line */
	printf("\x1b[%u;0H", term_row);
	#endif
	break;
	case 'q':
	putchar('\n');
	exit(0);
	default:
	#ifdef _WIN32
	printf("\r \r");
	#else
	/* Clean the current line */
	printf("\x1b[1K");
	/* Set the cursor to the start of the line */
	printf("\x1b[%u;0H", term_row);
	#endif
	/* If none input, return 1 */
	return 1;
	}
	return 0;
	}

	static int read_file(FILE *fp, int use_pipe, int flags) {
	char line[page_col];
	int seek;
	off_t filesize = -1;
	int black_line = 0;
	if(!use_pipe) {
	struct stat filestat;
	stat(filename, &filestat);
	filesize = filestat.st_size;
	}
	while(fgets(line, page_col, fp) != NULL) {
	if((flags & SKIP_MULTI_BLACK_LINES)) {
	if(*line == '\n') {
	if(black_line) continue;
	else black_line = 1;
	} else black_line = 0;
	}
	if(page_row != 1) {
	fprintf(stdout,"%s",line);
	//fflush(stdout);
	page_row--;
	} else {
	if(use_pipe) {
	fprintf(stdout, "--More--");
	} else {
	seek = ftell(fp);
	int percent = ((float)seek / (float)filesize) * 100;
	fprintf(stdout, "--More-- (%%%d)", percent);
	}
	while(read_more() == 1) {
	fprintf(stdout, "--More--");
	}
	}

	}

	#if 0
	// There is no need to read all data from a pipe that just for calculate the length
	} else {
	char **buff;
	int i = 1;
	char line[page_col];
	/* First alloc */
	buff = (char *)malloc(sizeof(char ));
	if(!buff) return -1;
	while(fgets(line, page_col, fp) != NULL) {
	/* Alloc buff[i-1] */
	buff[i-1] = (char )malloc(sizeof(char)page_col+1);
	strcpy(buff[i-1], line);
	i++;
	/* realloc */
	buff = (char *)realloc(buff, sizeof(char )*i);
	if(!buff) return -1;
	//printf("%s",buff[i-1]);
	}
	if(close(STDIN_FILENO)) {
	perror("STDIN_FILENO close faild");
	return errno;
	}
	if((fp = fopen("/dev/tty", "r")) == NULL) {
	perror("Error open TTY");
	return errno;
	}
	int line_num = i -1;
	int l = 0;
	for(i-- ; i > 0; i--) {
	if(page_row != 1) {
	fprintf(stdout,"%s",buff[l]);
	//fflush(stdout);
	page_row--;
	} else {
	int percent = ((float)l/(float)line_num) * 100;
	fprintf(stdout, "--More-- (%%%d)",percent);
	read_more();
	}
	l++;
	}
	/* Free memory */
	for(i=0; i<=line_num; i++) {
	free(buff[i]);
	}
	free(buff);
	}
	#endif
	/* Should close in main
	if(fclose(fp) != 0) {
	perror("Error to close");
	return errno;
	}
	*/
	return 0;
	}

	#include "version.h"

	int more_main(int argc, char *argv[]) {
	int use_tty = isatty(STDOUT_FILENO);
	int use_pipe = !isatty(STDIN_FILENO);
	int opt;

	if(use_tty) {
	#ifdef _WINDOWSNT_NATIVE
	// From Windows 2000
	page_row = 31;
	page_col = 78;
	#else
	#ifdef _WIN32
	#ifdef _WIN32_WCE
	unsigned long int row, col, rsize;
	if(!DeviceIoControl((void *)STDOUT_FILENO, IOCTL_CONSOLE_GETSCREENROWS, NULL, 0, &row, sizeof row, &rsize, NULL)) {
	return -errno;
	}
	if(!DeviceIoControl((void *)STDOUT_FILENO, IOCTL_CONSOLE_GETSCREENCOLS, NULL, 0, &col, sizeof col, &rsize, NULL)) {
	return -errno;
	}

	page_row = row;
	page_col = col;
	#else
	CONSOLE_SCREEN_BUFFER_INFO csbi;
	if(!GetConsoleScreenBufferInfo((void *)STDOUT_FILENO, &csbi)) {
	return 1;
	}
	page_row = csbi.srWindow.Right - csbi.srWindow.Left + 1;
	page_col = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
	#endif
	//fprintf(stderr, "%d, %d\n", page_col, page_row);
	#else
	/*
	* Get terminal size
	*
	* struct winsize {
	* unsigned short ws_row;
	* unsigned short ws_col;
	* unsigned short ws_xpixel;
	* unsigned short ws_ypixel;
	*};
	*/
	if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsz) == -1) {
	return -errno;
	}

	page_col = winsz.ws_col;
	page_row = winsz.ws_row;
	#endif
	#endif
	term_row = page_row;
	} else {
	//usage(argv[0]);
	fprintf(stderr, "%s: Not a terminal\n", argv[0]);
	return 1;
	}

	int flags = 0;
	/* getopt */
	while((opt = getopt(argc, argv, "sV")) != -1) {
	switch(opt) {
	case 's':
	flags \|= SKIP_MULTI_BLACK_LINES;
	break;
	case 'V':
	fprintf(stdout,"%s, From ToolBox by Rivoreo\nToolBox version: " VERSION "\n", argv[0]);
	return 0;
	default:
	usage(argv[0]);
	return EXIT_FAILURE;
	}
	}
	if(optind == argc && !use_pipe) {
	usage(argv[0]);
	return -1;
	}

	setvbuf(stdout, NULL, _IOLBF, 0);

	int r = 0;
	int fd = -1;
	/*
	* Now only support open a file or pipe
	* So I dont use get opt now.
	*/
	FILE *fp;

	if(argc != 1) {
	strcpy(filename, argv[optind]);
	fp = fopen(filename, "r");
	if(!fp) {
	perror("Error open file");
	return 1;
	}
	} else if(argc == 1 && !use_pipe) {
	usage(argv[0]);
	return 1;
	} else if(use_pipe) {
	#if defined _WIN32 && !defined _WINDOWSNT_NATIVE
	fprintf(stderr, "%s: Reading from stdin is not supported yet\n", argv[0]);
	return 1;
	#else
	fd = dup(STDIN_FILENO);
	if(fd == -1) {
	perror("dup");
	return 1;
	}
	//#if defined _WIN32 && !defined _WIN32_WCE
	//fp = stdin;
	//#else
	fp = fdopen(fd, "r");
	if(!fp) {
	perror("Error open STDIN_FILENO");
	return 1;
	}
	if(close(STDIN_FILENO) < 0) {
	perror("close");
	return 1;
	}
	//#endif
	//#ifndef _WIN32
	if(open("/dev/tty", O_RDONLY) != STDIN_FILENO) {
	fprintf(stderr, "%s: Cannot open terminal for stdin\n", argv[0]);
	return 1;
	}
	//#endif
	#endif
	} else {
	fprintf(stderr, "%s: Cannot read from a terminal\n", argv[0]);
	return 1;
	}

	if(read_file(fp, use_pipe, flags) < 0) {
	perror(argv[0]);
	r = 1;
	}
	#if defined _WIN32 && !defined _WIN32_WNT_NATIVE
	if(use_pipe) {
	// Since our ToolBox may be used as a library, restore the original file
	if(close(STDIN_FILENO) < 0) {
	perror("close");
	return 1;
	}
	if(dup(fd) != STDIN_FILENO) {
	fprintf(stderr, "%s: Cannot restore original stdin\n", argv[0]);
	return 1;
	}
	close(fd);
	}
	#endif
	fclose(fp);

	return r;
	}