diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 1 | ||||
| -rw-r--r-- | common/cmd_strings.c | 49 |
2 files changed, 50 insertions, 0 deletions
diff --git a/common/Makefile b/common/Makefile index 3cdab37..a88d1ef 100644 --- a/common/Makefile +++ b/common/Makefile @@ -87,6 +87,7 @@ COBJS-$(CONFIG_CMD_REISER) += cmd_reiser.o COBJS-y += cmd_sata.o COBJS-$(CONFIG_CMD_SCSI) += cmd_scsi.o COBJS-$(CONFIG_CMD_SPI) += cmd_spi.o +COBJS-$(CONFIG_CMD_STRINGS) += cmd_strings.o COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o COBJS-$(CONFIG_CMD_UNIVERSE) += cmd_universe.o COBJS-$(CONFIG_CMD_USB) += cmd_usb.o diff --git a/common/cmd_strings.c b/common/cmd_strings.c new file mode 100644 index 0000000..bbf56a0 --- /dev/null +++ b/common/cmd_strings.c @@ -0,0 +1,49 @@ +/* + * 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> + +#ifdef CONFIG_CFG_STRINGS + +static char *start_addr, *last_addr; + +int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + if (argc == 1) { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + 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 { + printf("%s\n", addr); + 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, + "strings - display strings\n", + "<addr> [byte count]\n" + " - display strings at <addr> for at least [byte count] or first double NUL\n"); + +#endif |