84 lines
1.4 KiB
C
Executable File
84 lines
1.4 KiB
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ident "@(#)echo.c 1.8 94/09/08 SMI" /* SVr4.0 1.3 */
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#include <stdio.h>
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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register char *cp;
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register int i, wd;
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int j;
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if (--argc == 0) {
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(void) putchar('\n');
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return (0);
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}
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for (i = 1; i <= argc; i++) {
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for (cp = argv[i]; *cp; cp++) {
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if (*cp == '\\')
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switch (*++cp) {
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case 'a': /* alert - XCU4 */
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(void) putchar('\a');
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continue;
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case 'b':
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(void) putchar('\b');
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continue;
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case 'c':
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return (0);
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case 'f':
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(void) putchar('\f');
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continue;
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case 'n':
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(void) putchar('\n');
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continue;
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case 'r':
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(void) putchar('\r');
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continue;
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case 't':
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(void) putchar('\t');
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continue;
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case 'v':
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(void) putchar('\v');
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continue;
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case '\\':
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(void) putchar('\\');
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continue;
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case '0':
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j = wd = 0;
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while ((*++cp >= '0' && *cp <= '7') &&
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j++ < 3) {
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wd <<= 3;
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wd |= (*cp - '0');
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}
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(void) putchar(wd);
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--cp;
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continue;
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default:
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cp--;
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}
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(void) putchar(*cp);
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}
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(void) putchar(i == argc? '\n': ' ');
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}
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return (0);
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}
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