minimal plan9port to cross-build Jehanne

lib/lib9/sysname.c

@@ -0,0 +1,30 @@
+#include <u.h>
+#include <libc.h>
+
+char*
+sysname(void)
+{
+	static char buf[512];
+	char *p, *q;
+
+	if(buf[0])
+		return buf;
+
+	if((q = getenv("sysname")) != nil && q[0] != 0){
+		utfecpy(buf, buf+sizeof buf, q);
+		free(q);
+		return buf;
+	}
+	if(q)
+		free(q);
+
+	if(gethostname(buf, sizeof buf) >= 0){
+		buf[sizeof buf-1] = 0;
+		if((p = strchr(buf, '.')) != nil)
+			*p = 0;
+		return buf;
+	}
+
+	strcpy(buf, "gnot");
+	return buf;
+}