Plan 9 version, nothing tweaked yet.

src/cmd/plumb/plumb.c

@@ -0,0 +1,119 @@
+#include <u.h>
+#include <libc.h>
+#include <plumb.h>
+
+char *plumbfile = nil;
+Plumbmsg m;
+
+void
+usage(void)
+{
+	fprint(2, "usage:  plumb [-p plumbfile] [-a 'attr=value ...'] [-s src] [-d dst] [-t type] [-w wdir] -i | data1\n");
+	exits("usage");
+}
+
+void
+gather(void)
+{
+	char buf[8192];
+	int n;
+
+	m.ndata = 0;
+	m.data = nil;
+	while((n = read(0, buf, sizeof buf)) > 0){
+		m.data = realloc(m.data, m.ndata+n);
+		if(m.data == nil){
+			fprint(2, "plumb: alloc failed: %r\n");
+			exits("alloc");
+		}
+		memmove(m.data+m.ndata, buf, n);
+		m.ndata += n;
+	}
+	if(n < 0){
+		fprint(2, "plumb: i/o error on input: %r\n");
+		exits("read");
+	}
+}
+
+void
+main(int argc, char *argv[])
+{
+	char buf[1024], *p;
+	int fd, i, input;
+
+	input = 0;
+	m.src = "plumb";
+	m.dst = nil;
+	m.wdir = getwd(buf, sizeof buf);
+	m.type = "text";
+	m.attr = nil;
+	ARGBEGIN{
+	case 'a':
+		p = ARGF();
+		if(p == nil)
+			usage();
+		m.attr = plumbaddattr(m.attr, plumbunpackattr(p));
+		break;
+	case 'd':
+		m.dst = ARGF();
+		if(m.dst == nil)
+			usage();
+		break;
+	case 'i':
+		input++;
+		break;
+	case 't':
+	case 'k':	/* for backwards compatibility */
+		m.type = ARGF();
+		if(m.type == nil)
+			usage();
+		break;
+	case 'p':
+		plumbfile = ARGF();
+		if(plumbfile == nil)
+			usage();
+		break;
+	case 's':
+		m.src = ARGF();
+		if(m.src == nil)
+			usage();
+		break;
+	case 'w':
+		m.wdir = ARGF();
+		if(m.wdir == nil)
+			usage();
+		break;
+	}ARGEND
+
+	if((input && argc>0) || (!input && argc<1))
+		usage();
+	if(plumbfile != nil)
+		fd = open(plumbfile, OWRITE);
+	else
+		fd = plumbopen("send", OWRITE);
+	if(fd < 0){
+		fprint(2, "plumb: can't open plumb file: %r\n");
+		exits("open");
+	}
+	if(input){
+		gather();
+		if(plumblookup(m.attr, "action") == nil)
+			m.attr = plumbaddattr(m.attr, plumbunpackattr("action=showdata"));
+		if(plumbsend(fd, &m) < 0){
+			fprint(2, "plumb: can't send message: %r\n");
+			exits("error");
+		}
+		exits(nil);
+	}
+	for(i=0; i<argc; i++){
+		if(input == 0){
+			m.data = argv[i];
+			m.ndata = -1;
+		}
+		if(plumbsend(fd, &m) < 0){
+			fprint(2, "plumb: can't send message: %r\n");
+			exits("error");
+		}
+	}
+	exits(nil);
+}