/* Print all parameters with descriptions. If force_all!=0, prints even
* parameters that specify the NO_PRINT_ALL flag.
*
* Returns 0 if success, non-zero if error. */
int PrintAllParams(int force_all) {
const Param* p;
int retval = 0;
char buf[VB_MAX_STRING_PROPERTY];
const char* value;
for (p = sys_param_list; p->name; p++) {
if (0 == force_all && (p->flags & NO_PRINT_ALL))
continue;
if (p->flags & IS_STRING) {
value = VbGetSystemPropertyString(p->name, buf, sizeof(buf));
} else {
int v = VbGetSystemPropertyInt(p->name);
if (v == -1)
value = NULL;
else {
snprintf(buf, sizeof(buf), p->format ? p->format : "%d", v);
value = buf;
}
}
printf("%-22s = %-30s # %s\n",
p->name, (value ? value : "(error)"), p->desc);
}
return retval;
}
/* Return true if the FWID starts with the specified string. */
int FwidStartsWith(const char *start) {
char fwid[VB_MAX_STRING_PROPERTY];
if (!VbGetSystemPropertyString("fwid", fwid, sizeof(fwid)))
return 0;
return 0 == strncmp(fwid, start, strlen(start));
}
/* Print the specified parameter.
*
* Returns 0 if success, non-zero if error. */
int PrintParam(const Param* p) {
if (p->flags & IS_STRING) {
char buf[VB_MAX_STRING_PROPERTY];
const char* v = VbGetSystemPropertyString(p->name, buf, sizeof(buf));
if (!v)
return 1;
printf("%s", v);
} else {
int v = VbGetSystemPropertyInt(p->name);
if (v == -1)
return 1;
printf(p->format ? p->format : "%d", v);
}
return 0;
}
/* Compares the parameter with the expected value.
*
* Returns 0 if success (match), non-zero if error (mismatch). */
int CheckParam(const Param* p, char* expect) {
if (p->flags & IS_STRING) {
char buf[VB_MAX_STRING_PROPERTY];
const char* v = VbGetSystemPropertyString(p->name, buf, sizeof(buf));
if (!v || 0 != strcmp(v, expect))
return 1;
} else {
char* e;
int i = (int)strtol(expect, &e, 0);
int v = VbGetSystemPropertyInt(p->name);
if (!*expect || (e && *e))
return 1;
if (v == -1 || i != v)
return 1;
}
return 0;
}
