60 lines
829 B
C
60 lines
829 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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char **av;
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void
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usage (char *s)
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{
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fprintf (stderr, "Usage: %s [file]\n", s);
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}
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void
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process (FILE *f, char *name)
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{
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int c;
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while ((c = getc (f)) != EOF) {
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if (c == 0xfe) {
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int len;
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int i;
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len = getc (f);
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c = getc (f);
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if (len != EOF)
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for (i = 0; i < len; i++)
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putchar (c);
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} else
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putchar (c);
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}
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}
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int
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main (int argc, char **argv)
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{
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av = argv;
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if (argc < 2) {
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process (stdin, "standard input");
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} else if (argc == 2) {
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FILE *f = fopen (argv[1], "r");
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if (f) {
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process (f, argv[1]);
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fclose (f);
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} else {
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fprintf (stderr, "%s: %s: %s\n", argv[0], argv[1],
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strerror (errno));
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exit (EXIT_FAILURE);
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}
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} else {
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usage (argv[0]);
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exit (EXIT_FAILURE);
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}
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return (EXIT_SUCCESS);
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}
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