Import sources from 2011-03-30 iso image

1 files changed, 40 insertions, 0 deletions

diff --git a/sys/src/cmd/echo.c b/sys/src/cmd/echo.c
new file mode 100755
index 000000000..998d7eac0
--- /dev/null
+++ b/sys/src/cmd/echo.c
@@ -0,0 +1,40 @@
+#include <u.h>
+#include <libc.h>
+
+void
+main(int argc, char *argv[])
+{
+	int nflag;
+	int i, len;
+	char *buf, *p;
+
+	nflag = 0;
+	if(argc > 1 && strcmp(argv[1], "-n") == 0)
+		nflag = 1;
+
+	len = 1;
+	for(i = 1+nflag; i < argc; i++)
+		len += strlen(argv[i])+1;
+
+	buf = malloc(len);
+	if(buf == 0)
+		exits("no memory");
+
+	p = buf;
+	for(i = 1+nflag; i < argc; i++){
+		strcpy(p, argv[i]);
+		p += strlen(p);
+		if(i < argc-1)
+			*p++ = ' ';
+	}
+		
+	if(!nflag)
+		*p++ = '\n';
+
+	if(write(1, buf, p-buf) < 0){
+		fprint(2, "echo: write error: %r\n");
+		exits("write error");
+	}
+
+	exits((char *)0);
+}