#include <common.h>
#include <command.h>
#include <environment.h>
+#if defined(CONFIG_CMD_EDITENV)
+#include <malloc.h>
+#endif
#include <watchdog.h>
#include <serial.h>
#include <linux/stddef.h>
break;
}
+ /* Check for console redirection */
+ if (strcmp(name,"stdin") == 0) {
+ console = stdin;
+ } else if (strcmp(name,"stdout") == 0) {
+ console = stdout;
+ } else if (strcmp(name,"stderr") == 0) {
+ console = stderr;
+ }
+
+ if (console != -1) {
+ if (argc < 3) { /* Cannot delete it! */
+ printf("Can't delete \"%s\"\n", name);
+ return 1;
+ }
+
+#ifdef CONFIG_CONSOLE_MUX
+ i = iomux_doenv(console, argv[2]);
+ if (i)
+ return i;
+#else
+ /* Try assigning specified device */
+ if (console_assign (console, argv[2]) < 0)
+ return 1;
+
+#ifdef CONFIG_SERIAL_MULTI
+ if (serial_assign (argv[2]) < 0)
+ return 1;
+#endif
+#endif /* CONFIG_CONSOLE_MUX */
+ }
+
/*
* Delete any existing definition
*/
}
#endif
- /* Check for console redirection */
- if (strcmp(name,"stdin") == 0) {
- console = stdin;
- } else if (strcmp(name,"stdout") == 0) {
- console = stdout;
- } else if (strcmp(name,"stderr") == 0) {
- console = stderr;
- }
-
- if (console != -1) {
- if (argc < 3) { /* Cannot delete it! */
- printf("Can't delete \"%s\"\n", name);
- return 1;
- }
-
-#ifdef CONFIG_CONSOLE_MUX
- i = iomux_doenv(console, argv[2]);
- if (i)
- return i;
-#else
- /* Try assigning specified device */
- if (console_assign (console, argv[2]) < 0)
- return 1;
-
-#ifdef CONFIG_SERIAL_MULTI
- if (serial_assign (argv[2]) < 0)
- return 1;
-#endif
-#endif /* CONFIG_CONSOLE_MUX */
- }
-
/*
* Switch to new baudrate if new baudrate is supported
*/
int setenv (char *varname, char *varvalue)
{
char *argv[4] = { "setenv", varname, varvalue, NULL };
- if (varvalue == NULL)
+ if ((varvalue == NULL) || (varvalue[0] == '\0'))
return _do_setenv (0, 2, argv);
else
return _do_setenv (0, 3, argv);
}
#endif
+/************************************************************************
+ * Interactively edit an environment variable
+ */
+#if defined(CONFIG_CMD_EDITENV)
+int do_editenv(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ char buffer[CONFIG_SYS_CBSIZE];
+ char *init_val;
+ int len;
+
+ if (argc < 2) {
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
+ /* Set read buffer to initial value or empty sting */
+ init_val = getenv(argv[1]);
+ if (init_val)
+ len = sprintf(buffer, "%s", init_val);
+ else
+ buffer[0] = '\0';
+
+ readline_into_buffer("edit: ", buffer);
+
+ return setenv(argv[1], buffer);
+}
+#endif /* CONFIG_CMD_EDITENV */
+
/************************************************************************
* Look up variable from environment,
* return address of storage for that variable,
/**************************************************/
+#if defined(CONFIG_CMD_EDITENV)
+U_BOOT_CMD(
+ editenv, 2, 0, do_editenv,
+ "edit environment variable",
+ "name\n"
+ " - edit environment variable 'name'"
+);
+#endif
+
U_BOOT_CMD(
printenv, CONFIG_SYS_MAXARGS, 1, do_printenv,
"print environment variables",