rlcat.c File Reference

#include <sys/types.h>
#include "posixstat.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#include <readline/readline.h>
#include <readline/history.h>

Go to the source code of this file.

Functions
void	exit ()
static int	stdcat ()
static void	usage ()
int	main (int argc, char **argv)
static int	fcopy (FILE *fp)
int	stdcat (int argc, char **argv)

Variables
int	errno
int	optind
char *	optarg
static char *	progname
static int	vflag

Function Documentation

exit()

void exit

(

)

Referenced by main().

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stdcat() [1/2]

static int stdcat ( )

static

Referenced by main().

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usage()

static void usage ( void  )

static

Definition at line 69 of file rlcat.c.

References progname.

Referenced by main().

{
  fprintf (stderr, "%s: usage: %s [-vEVN] [filename]\n", progname, progname);
}

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main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 75 of file rlcat.c.

References add_history(), argc, argv, exit(), optind, progname, readline(), rl_variable_bind(), stdcat(), strrchr(), temp, usage(), and vflag.

{
  char *temp;
  int opt, Vflag, Nflag;

  progname = strrchr(argv[0], '/');
  if (progname == 0)
    progname = argv[0];
  else
    progname++;

  vflag = Vflag = Nflag = 0;
  while ((opt = getopt(argc, argv, "vEVN")) != EOF)
    {
      switch (opt)
    {
    case 'v':
      vflag = 1;
      break;
    case 'V':
      Vflag = 1;
      break;
    case 'E':
      Vflag = 0;
      break;
    case 'N':
      Nflag = 1;
      break;
    default:
      usage ();
      exit (2);
    }
    }

  argc -= optind;
  argv += optind;

  if (isatty(0) == 0 || argc || Nflag)
    return stdcat(argc, argv);

  rl_variable_bind ("editing-mode", Vflag ? "vi" : "emacs");
  while (temp = readline (""))
    {
      if (*temp)
        add_history (temp);
      printf ("%s\n", temp);
    }

  return (ferror (stdout));
}

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fcopy()

static int fcopy ( FILE *  fp )

static

Definition at line 129 of file rlcat.c.

References c, isascii, isprint, rl_untranslate_keyseq(), and vflag.

Referenced by stdcat().

{
  int c;
  char *x;

  while ((c = getc(fp)) != EOF)
    {
      if (vflag && isascii ((unsigned char)c) && isprint((unsigned char)c) == 0)
    {
      x = rl_untranslate_keyseq (c);
      if (fputs (x, stdout) == EOF)
        return 1;
    }
      else if (putchar (c) == EOF)
        return 1;
    }
  return (ferror (stdout));
}

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stdcat() [2/2]

int stdcat	(	int	argc,
		char **	argv
	)

Definition at line 150 of file rlcat.c.

References argc, argv, errno, fcopy(), i, progname, and strerror().

{
  int  i, fd, r;
  char *s;
  FILE *fp;

  if (argc == 0)
    return (fcopy(stdin));

  for (i = 0, r = 1; i < argc; i++)
    {
      if (*argv[i] == '-' && argv[i][1] == 0)
    fp = stdin;
      else
    {
      fp = fopen (argv[i], "r");
      if (fp == 0)
        {
          fprintf (stderr, "%s: %s: cannot open: %s\n", progname, argv[i], strerror(errno));
          continue;
        }
        }
      r = fcopy (fp);
      if (fp != stdin)
    fclose(fp);
    }
  return r;
}

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Variable Documentation

errno

int errno

Referenced by stdcat().

optind

int optind

Referenced by main().

optarg

char* optarg

progname

char* progname

static

Definition at line 65 of file rlcat.c.

Referenced by main(), stdcat(), and usage().

vflag

int vflag

static

Definition at line 66 of file rlcat.c.

Referenced by fcopy(), main(), and realpath_builtin().