boolean_t
PE_parse_boot_argn(
const char *arg_string,
void *arg_ptr,
int max_len)
{
char *args;
char *cp, c;
uintptr_t i;
int val;
boolean_t arg_boolean;
boolean_t arg_found;
args = PE_boot_args();
if (*args == '\0') return FALSE;
#if CONFIG_EMBEDDED
if (max_len == -1) return FALSE;
#endif
arg_found = FALSE;
while(*args && isargsep(*args)) args++;
while (*args)
{
if (*args == '-')
arg_boolean = TRUE;
else
arg_boolean = FALSE;
cp = args;
while (!isargsep (*cp) && *cp != '=')
cp++;
if (*cp != '=' && !arg_boolean)
goto gotit;
c = *cp;
i = cp-args;
if (strncmp(args, arg_string, i) ||
(i!=strlen(arg_string)))
goto gotit;
if (arg_boolean) {
argnumcpy(1, arg_ptr, max_len);
arg_found = TRUE;
break;
} else {
while (*cp && isargsep (*cp))
cp++;
if (*cp == '=' && c != '=') {
args = cp+1;
goto gotit;
}
if ('_' == *arg_string) /* Force a string copy if the argument name begins with an underscore */
{
int hacklen = 17 > max_len ? 17 : max_len;
argstrcpy2 (++cp, (char *)arg_ptr, hacklen - 1); /* Hack - terminate after 16 characters */
arg_found = TRUE;
break;
}
switch (getval(cp, &val))
{
case NUM:
argnumcpy(val, arg_ptr, max_len);
arg_found = TRUE;
break;
case STR:
if(max_len > 0) //max_len of 0 performs no copy at all
argstrcpy2(++cp, (char *)arg_ptr, max_len - 1);
#if !CONFIG_EMBEDDED
else if(max_len == -1) // unreachable on embedded
argstrcpy(++cp, (char *)arg_ptr);
#endif
arg_found = TRUE;
break;
}
goto gotit;
}
gotit:
/* Skip over current arg */
while(!isargsep(*args)) args++;
/* Skip leading white space (catch end of args) */
while(*args && isargsep(*args)) args++;
}
return(arg_found);
}
bool
Parse_boot_argn(const char *arg_string, void *arg_ptr, int max_len) {
char *args;
char *cp, c;
uintptr_t i;
long long val;
boolean_t arg_bool;
boolean_t arg_found;
args = Platform_state.bootArgs->CommandLine;
if (*args == '\0')
return false;
arg_found = false;
while(*args && isargsep(*args))
args++;
while (*args) {
if (*args == '-')
arg_bool = true;
else
arg_bool = false;
cp = args;
while (!isargsep(*cp) && *cp != '=')
cp++;
if (*cp != '=' && !arg_bool)
goto gotit;
c = *cp;
i = cp-args;
if (strncmp(args, arg_string, i) || (i!=strlen(arg_string)))
goto gotit;
if (arg_bool) {
argnumcpy(1, arg_ptr, max_len);
arg_found = true;
break;
} else {
while (*cp && isargsep (*cp))
cp++;
if (*cp == '=' && c != '=') {
args = cp+1;
goto gotit;
}
if ('_' == *arg_string) { /* Force a string copy if the argument name begins with an underscore */
int hacklen = 17 > max_len ? 17 : max_len;
argstrlcpy(++cp, (char *)arg_ptr, hacklen - 1); /* Hack - terminate after 16 characters */
arg_found = true;
break;
}
switch (getval(cp, &val, false)) {
case NUM:
argnumcpy(val, arg_ptr, max_len);
arg_found = true;
break;
case STR:
if(max_len > 0) //max_len of 0 performs no copy at all
argstrlcpy(++cp, (char *)arg_ptr, max_len - 1);
arg_found = true;
break;
}
goto gotit;
}
gotit:
/* Skip over current arg */
while(!isargsep(*args)) args++;
/* Skip leading white space (catch end of args) */
while(*args && isargsep(*args)) args++;
}
return(arg_found);
}
