1 bc7cb1a1 2003-11-23 devnull #include <u.h>
 2 bc7cb1a1 2003-11-23 devnull #include <libc.h>
 3 bc7cb1a1 2003-11-23 devnull 
 4 bc7cb1a1 2003-11-23 devnull void
 5 bc7cb1a1 2003-11-23 devnull main(int argc, char *argv[])
 6 bc7cb1a1 2003-11-23 devnull {
 7 bc7cb1a1 2003-11-23 devnull 	int nflag;
 8 bc7cb1a1 2003-11-23 devnull 	int i, len;
 9 bc7cb1a1 2003-11-23 devnull 	char *buf, *p;
10 bc7cb1a1 2003-11-23 devnull 
11 bc7cb1a1 2003-11-23 devnull 	nflag = 0;
12 bc7cb1a1 2003-11-23 devnull 	if(argc > 1 && strcmp(argv[1], "-n") == 0)
13 bc7cb1a1 2003-11-23 devnull 		nflag = 1;
14 bc7cb1a1 2003-11-23 devnull 
15 bc7cb1a1 2003-11-23 devnull 	len = 1;
16 bc7cb1a1 2003-11-23 devnull 	for(i = 1+nflag; i < argc; i++)
17 bc7cb1a1 2003-11-23 devnull 		len += strlen(argv[i])+1;
18 bc7cb1a1 2003-11-23 devnull 
19 bc7cb1a1 2003-11-23 devnull 	buf = malloc(len);
20 bc7cb1a1 2003-11-23 devnull 	if(buf == 0)
21 bc7cb1a1 2003-11-23 devnull 		exits("no memory");
22 bc7cb1a1 2003-11-23 devnull 
23 bc7cb1a1 2003-11-23 devnull 	p = buf;
24 bc7cb1a1 2003-11-23 devnull 	for(i = 1+nflag; i < argc; i++){
25 bc7cb1a1 2003-11-23 devnull 		strcpy(p, argv[i]);
26 bc7cb1a1 2003-11-23 devnull 		p += strlen(p);
27 bc7cb1a1 2003-11-23 devnull 		if(i < argc-1)
28 bc7cb1a1 2003-11-23 devnull 			*p++ = ' ';
29 bc7cb1a1 2003-11-23 devnull 	}
30 fa325e9b 2020-01-10 cross 
31 bc7cb1a1 2003-11-23 devnull 	if(!nflag)
32 bc7cb1a1 2003-11-23 devnull 		*p++ = '\n';
33 bc7cb1a1 2003-11-23 devnull 
34 bc7cb1a1 2003-11-23 devnull 	if(write(1, buf, p-buf) < 0)
35 bc7cb1a1 2003-11-23 devnull 		fprint(2, "echo: write error: %r\n");
36 bc7cb1a1 2003-11-23 devnull 
37 bc7cb1a1 2003-11-23 devnull 	exits((char *)0);
38 bc7cb1a1 2003-11-23 devnull }