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TEE.C
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C/C++ Source or Header
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1994-01-04
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2KB
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72 lines
/*
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include "freedos.h"
#include "getopt.c"
void usage (void);
main (int argc, char **argv)
{
int i;
char ch;
FILE *fp;
/* Check the command line */
while ((i = getopt (argc, argv, "?", NULL)) != EOF)
{
switch (i)
{
default:
usage ();
break;
}
}
if (argc != 2)
usage ();
/* Open the output file */
if ((fp = fopen (argv[1], "w")) == NULL)
{
fprintf (stderr, "Cannot open output file %s\n", argv[1]);
exit (2);
}
/* Tee the input */
while ((ch = fgetc (stdin)) != EOF)
{
fputc (ch, stdout);
fputc (ch, fp);
}
fclose (fp);
exit (0);
}
void usage (void)
{
printp ("TEE", "Saves a copy of its input to a file and to standard output");
printu ("TEE", "filename");
exit (1);
}