Merge branch 'next' of ../next

1 files changed, 173 insertions, 0 deletions

diff --git a/common/cmd_test.c b/common/cmd_test.c
new file mode 100644
index 0000000..d886f89
--- /dev/null
+++ b/common/cmd_test.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright 2000-2009
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+
+int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	char **ap;
+	int left, adv, expr, last_expr, neg, last_cmp;
+
+	/* args? */
+	if (argc < 3)
+		return 1;
+
+#if 0
+	{
+		printf("test:");
+		left = 1;
+		while (argv[left])
+			printf(" %s", argv[left++]);
+	}
+#endif
+
+	last_expr = 0;
+	left = argc - 1; ap = argv + 1;
+	if (left > 0 && strcmp(ap[0], "!") == 0) {
+		neg = 1;
+		ap++;
+		left--;
+	} else
+		neg = 0;
+
+	expr = -1;
+	last_cmp = -1;
+	last_expr = -1;
+	while (left > 0) {
+
+		if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
+			adv = 1;
+		else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
+			adv = 2;
+		else
+			adv = 3;
+
+		if (left < adv) {
+			expr = 1;
+			break;
+		}
+
+		if (adv == 1) {
+			if (strcmp(ap[0], "-o") == 0) {
+				last_expr = expr;
+				last_cmp = 0;
+			} else if (strcmp(ap[0], "-a") == 0) {
+				last_expr = expr;
+				last_cmp = 1;
+			} else {
+				expr = 1;
+				break;
+			}
+		}
+
+		if (adv == 2) {
+			if (strcmp(ap[0], "-z") == 0)
+				expr = strlen(ap[1]) == 0 ? 1 : 0;
+			else if (strcmp(ap[0], "-n") == 0)
+				expr = strlen(ap[1]) == 0 ? 0 : 1;
+			else {
+				expr = 1;
+				break;
+			}
+
+			if (last_cmp == 0)
+				expr = last_expr || expr;
+			else if (last_cmp == 1)
+				expr = last_expr && expr;
+			last_cmp = -1;
+		}
+
+		if (adv == 3) {
+			if (strcmp(ap[1], "=") == 0)
+				expr = strcmp(ap[0], ap[2]) == 0;
+			else if (strcmp(ap[1], "!=") == 0)
+				expr = strcmp(ap[0], ap[2]) != 0;
+			else if (strcmp(ap[1], ">") == 0)
+				expr = strcmp(ap[0], ap[2]) > 0;
+			else if (strcmp(ap[1], "<") == 0)
+				expr = strcmp(ap[0], ap[2]) < 0;
+			else if (strcmp(ap[1], "-eq") == 0)
+				expr = simple_strtol(ap[0], NULL, 10) == simple_strtol(ap[2], NULL, 10);
+			else if (strcmp(ap[1], "-ne") == 0)
+				expr = simple_strtol(ap[0], NULL, 10) != simple_strtol(ap[2], NULL, 10);
+			else if (strcmp(ap[1], "-lt") == 0)
+				expr = simple_strtol(ap[0], NULL, 10) < simple_strtol(ap[2], NULL, 10);
+			else if (strcmp(ap[1], "-le") == 0)
+				expr = simple_strtol(ap[0], NULL, 10) <= simple_strtol(ap[2], NULL, 10);
+			else if (strcmp(ap[1], "-gt") == 0)
+				expr = simple_strtol(ap[0], NULL, 10) > simple_strtol(ap[2], NULL, 10);
+			else if (strcmp(ap[1], "-ge") == 0)
+				expr = simple_strtol(ap[0], NULL, 10) >= simple_strtol(ap[2], NULL, 10);
+			else {
+				expr = 1;
+				break;
+			}
+
+			if (last_cmp == 0)
+				expr = last_expr || expr;
+			else if (last_cmp == 1)
+				expr = last_expr && expr;
+			last_cmp = -1;
+		}
+
+		ap += adv; left -= adv;
+	}
+
+	if (neg)
+		expr = !expr;
+
+	expr = !expr;
+
+	debug (": returns %d\n", expr);
+
+	return expr;
+}
+
+U_BOOT_CMD(
+	test,	CONFIG_SYS_MAXARGS,	1,	do_test,
+	"minimal test like /bin/sh",
+	"[args..]"
+);
+
+int do_false(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	return 1;
+}
+
+U_BOOT_CMD(
+	false,	CONFIG_SYS_MAXARGS,	1,	do_false,
+	"do nothing, unsuccessfully",
+	NULL
+);
+
+int do_true(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	return 0;
+}
+
+U_BOOT_CMD(
+	true,	CONFIG_SYS_MAXARGS,	1,	do_true,
+	"do nothing, successfully",
+	NULL
+);