113 lines
1.7 KiB
C
113 lines
1.7 KiB
C
/* Copyright (c) 1984 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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */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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#ifndef lint
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static char sccsid[] = "@(#)echo.c 1.1 92/07/30 SMI"; /* from S5R3 1.6 */
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#endif
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/*
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* UNIX shell
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*/
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#include "defs.h"
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#define exit(a) flushb();return(a)
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extern int exitval;
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echo(argc, argv)
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char **argv;
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{
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if (s5builtins)
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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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prc_buff('\n');
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exit(0);
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}
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for(i = 1; i <= argc; i++)
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{
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sigchk();
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for(cp = argv[i]; *cp; cp++)
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{
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if(*cp == '\\')
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switch(*++cp)
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{
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case 'b':
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prc_buff('\b');
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continue;
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case 'c':
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exit(0);
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case 'f':
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prc_buff('\f');
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continue;
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case 'n':
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prc_buff('\n');
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continue;
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case 'r':
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prc_buff('\r');
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continue;
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case 't':
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prc_buff('\t');
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continue;
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case 'v':
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prc_buff('\v');
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continue;
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case '\\':
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prc_buff('\\');
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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') && j++ < 3) {
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wd <<= 3;
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wd |= (*cp - '0');
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}
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prc_buff(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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prc_buff(*cp);
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}
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prc_buff(i == argc? '\n': ' ');
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}
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exit(0);
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}
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else
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{
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register int i, nflg;
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nflg = 0;
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if(argc > 1 && argv[1][0] == '-' && argv[1][1] == 'n') {
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nflg++;
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argc--;
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argv++;
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}
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for(i=1; i<argc; i++) {
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sigchk();
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prs_buff(argv[i]);
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if (i < argc-1)
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prc_buff(' ');
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}
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if(nflg == 0)
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prc_buff('\n');
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exit(0);
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}
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}
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