#include <env_default.h>
struct hsearch_data env_htab = {
- .change_ok = env_change_ok,
+ .change_ok = env_flags_validate,
};
static uchar __env_get_char_spec(int index)
return &default_environment[index];
}
+/*
+ * Read an environment variable as a boolean
+ * Return -1 if variable does not exist (default to true)
+ */
+int getenv_yesno(const char *var)
+{
+ char *s = getenv(var);
+
+ if (s == NULL)
+ return -1;
+ return (*s == '1' || *s == 'y' || *s == 'Y' || *s == 't' || *s == 'T') ?
+ 1 : 0;
+}
+
+/*
+ * Look up the variable from the default environment
+ */
+char *getenv_default(const char *name)
+{
+ char *ret_val;
+ unsigned long really_valid = gd->env_valid;
+ unsigned long real_gd_flags = gd->flags;
+
+ /* Pretend that the image is bad. */
+ gd->flags &= ~GD_FLG_ENV_READY;
+ gd->env_valid = 0;
+ ret_val = getenv(name);
+ gd->env_valid = really_valid;
+ gd->flags = real_gd_flags;
+ return ret_val;
+}
+
void set_default_env(const char *s)
{
int flags = 0;