diff options
Diffstat (limited to 'follow.c')
| -rw-r--r-- | follow.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/follow.c b/follow.c deleted file mode 100644 index 09456c9..0000000 --- a/follow.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * follow.c -- interactively print an ASCII file. - * - * 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. - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <signal.h> -#include <time.h> -#include <unistd.h> -#include <sys/time.h> -#include <sys/types.h> - -#ifndef USE_SGTTY -# ifdef APOLLO -# include "/sys5.3/usr/include/sys/termio.h" -# else -/* - * including both termio.h and termios.h might be an overkill, and gives - * many warnings, but seems to be necessary at times. works anyway. - */ -# include <termios.h> -# include <termio.h> -# endif -/* #else USE_SGTTY */ -#endif - -/* - * SunOS 4 doesn't have function headers and has the defs needed from - * ioctl.h in termios.h. Does it compile with USE_SGTTY? - */ -#if (defined(sun) && defined(sparc) && ! defined(__SVR4)) -extern int printf(); -#else -# include <sys/ioctl.h> -#endif - -#ifdef BSD_LIKE -# include <sys/ioctl_compat.h> -# define O_RAW RAW -# define O_ECHO ECHO -# define O_CBREAK CBREAK -#endif - -#if defined(TCSETS) || defined(TCSETATTR) -# ifndef TCSETS /* cc for HP-UX SHOULD define this... */ -# define TCSETS TCSETATTR -# define TCGETS TCGETATTR -# endif -typedef struct termios termiostruct; -#else -# define TCSETS TCSETA -# define TCGETS TCGETA -typedef struct termio termiostruct; -#endif - -#ifdef VSUSP -# define O_SUSP VSUSP -#else -# ifdef SWTCH -# define O_SUSP SWTCH -# else -# define O_SUSP SUSP -# endif -#endif - -/*int ioctl();*/ - -#ifdef USE_SGTTY -static struct sgttyb ttybsave; -static struct tchars tcsave; -static struct ltchars ltcsave; -#else /* not USE_SGTTY */ -static termiostruct ttybsave; -#endif /* USE_SGTTY */ - -/* - * Terminal handling routines: - * These are one big mess of left-justified chicken scratches. - * It should be handled more cleanly...but unix portability is what it is. - */ - -/* - * Set the terminal to character-at-a-time-without-echo mode, and save the - * original state in ttybsave - */ -void set_terminal() -{ -#ifdef USE_SGTTY - struct sgttyb ttyb; - struct ltchars ltc; - ioctl(0, TIOCGETP, &ttybsave); - ioctl(0, TIOCGETC, &tcsave); - ioctl(0, TIOCGLTC, <csave); - ttyb = ttybsave; - ttyb.sg_flags = (ttyb.sg_flags|O_CBREAK) & ~O_ECHO; - ioctl(0, TIOCSETP, &ttyb); - ltc = ltcsave; - ltc.t_suspc = -1; - ioctl(0, TIOCSLTC, <c); -#else /* not USE_SGTTY */ - termiostruct ttyb; - ioctl(0, TCGETS, &ttyb); - ttybsave = ttyb; - ttyb.c_lflag &= ~(ECHO|ICANON); - ttyb.c_cc[VTIME] = 0; - ttyb.c_cc[VMIN] = 1; - /* disable the special handling of the suspend key (handle it ourselves) */ - ttyb.c_cc[O_SUSP] = 0; - ioctl(0, TCSETS, &ttyb); -#endif /* USE_SGTTY */ -} - -/* - * Reset the terminal to its original state - */ -void reset_terminal() -{ -#ifdef USE_SGTTY - ioctl(0, TIOCSETP, &ttybsave); - ioctl(0, TIOCSETC, &tcsave); - ioctl(0, TIOCSLTC, <csave); -#else /* not USE_SGTTY */ - ioctl(0, TCSETS, &ttybsave); -#endif /* USE_SGTTY */ -} - -int main(int argc, char *argv[]) { - FILE *f; - char c = 0, buf[512]; - int d; - - if (argc < 2) { - fprintf(stderr, "needed a file name\n"); - exit(0); - } - f = fopen(argv[1], "r"); - if (!f) { - fprintf(stderr, "unable to open %s\n", argv[1]); - exit(0); - } - - set_terminal(); - while(c!=0x1b) { - read(0, &c, 1); - if (c == 0x0a || c == 0x0d) { - if (fgets(buf, 512, f)) - fputs(buf, stdout); - else - break; - } - else { - if ((d = fgetc(f)) != EOF) - putchar(d); - else - break; - } - fflush(stdout); - } - reset_terminal(); - fputs("\033[0m\n", stdout); - return 0; -} - |