diff options
Diffstat (limited to 'sys/boot/uboot/common/main.c')
-rw-r--r-- | sys/boot/uboot/common/main.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/sys/boot/uboot/common/main.c b/sys/boot/uboot/common/main.c index 16cea23..75e6854 100644 --- a/sys/boot/uboot/common/main.c +++ b/sys/boot/uboot/common/main.c @@ -556,6 +556,75 @@ command_sysinfo(int argc, char *argv[]) return (CMD_OK); } +enum ubenv_action { + UBENV_UNKNOWN, + UBENV_SHOW, + UBENV_IMPORT +}; + +static void +handle_uboot_env_var(enum ubenv_action action, const char * var) +{ + const char * val; + char ubv[128]; + + /* + * If the user prepended "uboot." (which is how they usually see these + * names) strip it off as a convenience. + */ + if (strncmp(var, "uboot.", 6) == 0) { + snprintf(ubv, sizeof(ubv), "%s", &var[6]); + var = ubv; + } + val = ub_env_get(var); + if (action == UBENV_SHOW) { + if (val == NULL) + printf("uboot.%s is not set\n", var); + else + printf("uboot.%s=%s\n", var, val); + } else if (action == UBENV_IMPORT) { + if (val != NULL) { + snprintf(ubv, sizeof(ubv), "uboot.%s", var); + setenv(ubv, val, 1); + } + } +} + +static int +command_ubenv(int argc, char *argv[]) +{ + enum ubenv_action action; + const char *var; + int i; + + action = UBENV_UNKNOWN; + if (argc > 1) { + if (strcasecmp(argv[1], "import") == 0) + action = UBENV_IMPORT; + else if (strcasecmp(argv[1], "show") == 0) + action = UBENV_SHOW; + } + if (action == UBENV_UNKNOWN) { + command_errmsg = "usage: 'ubenv <import|show> [var ...]"; + return (CMD_ERROR); + } + + if (argc > 2) { + for (i = 2; i < argc; i++) + handle_uboot_env_var(action, argv[i]); + } else { + var = NULL; + for (;;) { + if ((var = ub_env_enum(var)) == NULL) + break; + handle_uboot_env_var(action, var); + } + } + + return (CMD_OK); +} +COMMAND_SET(ubenv, "ubenv", "show or import U-Boot env vars", command_ubenv); + #ifdef LOADER_FDT_SUPPORT /* * Since proper fdt command handling function is defined in fdt_loader_cmd.c, |