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-rw-r--r--u-boot/common/cmd_strings.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/u-boot/common/cmd_strings.c b/u-boot/common/cmd_strings.c
new file mode 100644
index 0000000..2986324
--- /dev/null
+++ b/u-boot/common/cmd_strings.c
@@ -0,0 +1,46 @@
+/*
+ * cmd_strings.c - just like `strings` command
+ *
+ * Copyright (c) 2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+
+static char *start_addr, *last_addr;
+
+int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ if (argc == 1)
+ return cmd_usage(cmdtp);
+
+ if ((flag & CMD_FLAG_REPEAT) == 0) {
+ start_addr = (char *)simple_strtoul(argv[1], NULL, 16);
+ if (argc > 2)
+ last_addr = (char *)simple_strtoul(argv[2], NULL, 16);
+ else
+ last_addr = (char *)-1;
+ }
+
+ char *addr = start_addr;
+ do {
+ puts(addr);
+ puts("\n");
+ addr += strlen(addr) + 1;
+ } while (addr[0] && addr < last_addr);
+
+ last_addr = addr + (last_addr - start_addr);
+ start_addr = addr;
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ strings, 3, 1, do_strings,
+ "display strings",
+ "<addr> [byte count]\n"
+ " - display strings at <addr> for at least [byte count] or first double NUL"
+);