Files
Arquivotheca.Solaris-2.5/cmd/sh/echo.c
seta75D 7c4988eac0 Init
2021-10-11 19:38:01 -03:00

117 lines
2.1 KiB
C
Executable File

/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
/* The copyright notice above does not evidence any */
/* actual or intended publication of such source code. */
/* Portions Copyright (c) 1988, Sun Microsystems, Inc. */
/* All Rights Reserved. */
#ident "@(#)echo.c 1.8 94/01/20 SMI" /* SVr4.0 1.6.1.2 */
/*
* UNIX shell
*/
#include "defs.h"
#define exit(a) flushb();return(a)
extern int exitval;
echo(argc, argv)
unsigned char **argv;
{
register unsigned char *cp;
register int i, wd;
int j;
if (ucb_builtins) {
register int nflg;
nflg = 0;
if(argc > 1 && argv[1][0] == '-' && argv[1][1] == 'n') {
nflg++;
argc--;
argv++;
}
for(i=1; i<argc; i++) {
sigchk();
for (cp = argv[i]; *cp; cp++) {
prc_buff(*cp);
}
if (i < argc-1)
prc_buff(' ');
}
if(nflg == 0)
prc_buff('\n');
exit(0);
}
else {
if(--argc == 0) {
prc_buff('\n');
exit(0);
}
for(i = 1; i <= argc; i++)
{
sigchk();
for(cp = argv[i]; *cp; cp++)
{
if(*cp == '\\')
switch(*++cp)
{
case 'b':
prc_buff('\b');
continue;
case 'c':
exit(0);
case 'f':
prc_buff('\f');
continue;
case 'n':
prc_buff('\n');
continue;
case 'r':
prc_buff('\r');
continue;
case 't':
prc_buff('\t');
continue;
case 'v':
prc_buff('\v');
continue;
case '\\':
prc_buff('\\');
continue;
case '0':
j = wd = 0;
while ((*++cp >= '0' && *cp <= '7') && j++ < 3) {
wd <<= 3;
wd |= (*cp - '0');
}
prc_buff(wd);
--cp;
continue;
default:
cp--;
}
prc_buff(*cp);
}
prc_buff(i == argc? '\n': ' ');
}
exit(0);
}
}