initctl signal command parsing: done

src/util.c

@@ -275,6 +275,34 @@ char *sig2str(int sig)
 	return signame;
 }
 
+/**
+ * str2sig - Translate signal name to the corresponding signal number.
+ * @sig: The name of the signal
+ * 
+ * A signal can be a complete signal name such as "SIGHUP", or
+ * it can be the shortest unique name, such as "HUP" (no SIG prefix).
+ */
+int str2sig(char *sig)
+{
+	int name_offset = 0;
+	size_t i;
+
+	/* if sig name starts with "SIG", then skip the first
+	 * three characters. signames holds the names without
+	 * the "SIG" prefix.
+	 */
+	if (strncasecmp(sig, "SIG", 3) == 0) {
+		name_offset = 3;
+	}
+
+	for (i = 1; i < NELEMS(signames); ++i) {
+		if (strcasecmp(&sig[name_offset], signames[i]) == 0)
+			return i;
+	}
+
+	return -1;
+}
+
 char *code2str(int code)
 {
 	static char codename[20];