diff options
Diffstat (limited to 'common/cmd_nvedit.c')
| -rw-r--r-- | common/cmd_nvedit.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c index a8dc9a6..da5689c 100644 --- a/common/cmd_nvedit.c +++ b/common/cmd_nvedit.c @@ -208,10 +208,20 @@ static int do_env_grep(cmd_tbl_t *cmdtp, int flag, * overwriting of write-once variables. */ -int env_check_apply(const char *name, const char *oldval, - const char *newval, int flag) +int env_change_ok(const ENTRY *item, const char *newval, enum env_op op, + int flag) { int console = -1; + const char *name; +#if !defined(CONFIG_ENV_OVERWRITE) && defined(CONFIG_OVERWRITE_ETHADDR_ONCE) \ +&& defined(CONFIG_ETHADDR) + const char *oldval = NULL; + + if (op != env_op_create) + oldval = item->data; +#endif + + name = item->key; /* Default value for NULL to protect string-manipulating functions */ newval = newval ? : ""; @@ -242,12 +252,12 @@ int env_check_apply(const char *name, const char *oldval, #endif /* CONFIG_CONSOLE_MUX */ } +#ifndef CONFIG_ENV_OVERWRITE /* * Some variables like "ethaddr" and "serial#" can be set only once and * cannot be deleted, unless CONFIG_ENV_OVERWRITE is defined. */ -#ifndef CONFIG_ENV_OVERWRITE - if (oldval != NULL && /* variable exists */ + if (op != env_op_create && /* variable exists */ (flag & H_FORCE) == 0) { /* and we are not forced */ if (strcmp(name, "serial#") == 0 || (strcmp(name, "ethaddr") == 0 @@ -265,7 +275,7 @@ int env_check_apply(const char *name, const char *oldval, * (which will erase all variables prior to calling this), * we want the baudrate to actually change - for real. */ - if (oldval != NULL || /* variable exists */ + if (op != env_op_create || /* variable exists */ (flag & H_NOCLEAR) == 0) { /* or env is clear */ /* * Switch to new baudrate if new baudrate is supported @@ -339,20 +349,6 @@ static int _do_env_set(int flag, int argc, char * const argv[]) } env_id++; - /* - * search if variable with this name already exists - */ - e.key = name; - e.data = NULL; - hsearch_r(e, FIND, &ep, &env_htab, 0); - - /* - * Perform requested checks. - */ - if (env_check_apply(name, ep ? ep->data : NULL, value, 0)) { - debug("check function did not approve, refusing\n"); - return 1; - } /* Delete only ? */ if (argc < 3 || argv[2] == NULL) { |