int setenv(const char *varname, const char *varvalue)
{
const char * const argv[4] = { "setenv", varname, varvalue, NULL };
/* before import into hashtable */
if (!(gd->flags & GD_FLG_ENV_READY))
return 1;
if (varvalue == NULL || varvalue[0] == '\0')
return _do_env_set(0, 2, (char * const *)argv);
else
return _do_env_set(0, 3, (char * const *)argv);
}
int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
return cmd_usage(cmdtp);
return _do_env_set(flag, argc, argv);
}
static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
return CMD_RET_USAGE;
return _do_env_set(flag, argc, argv);
}
int do_setenv(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
return 1;
return _do_env_set(flag, argc, argv);
}
int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
extern char console_buffer[CONFIG_SYS_CBSIZE];
char message[CONFIG_SYS_CBSIZE];
int size = CONFIG_SYS_CBSIZE - 1;
int i, len, pos;
char *local_args[4];
local_args[0] = argv[0];
local_args[1] = argv[1];
local_args[2] = NULL;
local_args[3] = NULL;
/* Check the syntax */
switch (argc) {
case 1:
return cmd_usage(cmdtp);
case 2: /* env_ask envname */
sprintf(message, "Please enter '%s':", argv[1]);
break;
case 3: /* env_ask envname size */
sprintf(message, "Please enter '%s':", argv[1]);
size = simple_strtoul(argv[2], NULL, 10);
break;
default: /* env_ask envname message1 ... messagen size */
for (i = 2, pos = 0; i < argc - 1; i++) {
if (pos)
message[pos++] = ' ';
strcpy(message+pos, argv[i]);
pos += strlen(argv[i]);
}
message[pos] = '\0';
size = simple_strtoul(argv[argc - 1], NULL, 10);
break;
}
if (size >= CONFIG_SYS_CBSIZE)
size = CONFIG_SYS_CBSIZE - 1;
if (size <= 0)
return 1;
/* prompt for input */
len = readline(message);
if (size < len)
console_buffer[size] = '\0';
len = 2;
if (console_buffer[0] != '\0') {
local_args[2] = console_buffer;
len = 3;
}
/* Continue calling setenv code */
return _do_env_set(flag, len, local_args);
}
int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char message[CONFIG_SYS_CBSIZE];
int i, len, pos, size;
char *local_args[4];
char *endptr;
local_args[0] = argv[0];
local_args[1] = argv[1];
local_args[2] = NULL;
local_args[3] = NULL;
/*
* Check the syntax:
*
* env_ask envname [message1 ...] [size]
*/
if (argc == 1)
return CMD_RET_USAGE;
/*
* We test the last argument if it can be converted
* into a decimal number. If yes, we assume it's
* the size. Otherwise we echo it as part of the
* message.
*/
i = simple_strtoul(argv[argc - 1], &endptr, 10);
if (*endptr != '\0') { /* no size */
size = CONFIG_SYS_CBSIZE - 1;
} else { /* size given */
size = i;
--argc;
}
if (argc <= 2) {
sprintf(message, "Please enter '%s': ", argv[1]);
} else {
/* env_ask envname message1 ... messagen [size] */
for (i = 2, pos = 0; i < argc; i++) {
if (pos)
message[pos++] = ' ';
strcpy(message + pos, argv[i]);
pos += strlen(argv[i]);
}
message[pos++] = ' ';
message[pos] = '\0';
}
if (size >= CONFIG_SYS_CBSIZE)
size = CONFIG_SYS_CBSIZE - 1;
if (size <= 0)
return 1;
/* prompt for input */
len = readline(message);
if (size < len)
console_buffer[size] = '\0';
len = 2;
if (console_buffer[0] != '\0') {
local_args[2] = console_buffer;
len = 3;
}
/* Continue calling setenv code */
return _do_env_set(flag, len, local_args);
}
