diff options
Diffstat (limited to 'common/cmd_nvedit.c')
| -rw-r--r-- | common/cmd_nvedit.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c index b2c88ba..e8b116d 100644 --- a/common/cmd_nvedit.c +++ b/common/cmd_nvedit.c @@ -367,13 +367,14 @@ int _do_env_set (int flag, int argc, char * const argv[]) return 0; } -int setenv(char *varname, char *varvalue) +int setenv(const char *varname, const char *varvalue) { - char * const argv[4] = { "setenv", varname, varvalue, NULL }; + const char * const argv[4] = { "setenv", varname, varvalue, NULL }; + if ((varvalue == NULL) || (varvalue[0] == '\0')) - return _do_env_set(0, 2, argv); + return _do_env_set(0, 2, (char * const *)argv); else - return _do_env_set(0, 3, argv); + return _do_env_set(0, 3, (char * const *)argv); } int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) @@ -482,7 +483,7 @@ int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) * return address of storage for that variable, * or NULL if not found */ -char *getenv(char *name) +char *getenv(const char *name) { if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */ ENTRY e, *ep; @@ -507,7 +508,7 @@ char *getenv(char *name) /* * Look up variable from environment for restricted C runtime env. */ -int getenv_f(char *name, char *buf, unsigned len) +int getenv_f(const char *name, char *buf, unsigned len) { int i, nxt; |