static enum wav2prg_bool find_single_character_match(const struct option_names *names, const char option, uint32_t *option_index, char **last_matched_option){
free(*last_matched_option);
*last_matched_option = malloc(2);
(*last_matched_option)[0] = option;
(*last_matched_option)[1] = 0;
return search_option(names, *last_matched_option, option_index);
}
static struct xemutools_config_st *search_option_query ( const char *name, enum xemutools_option_type type )
{
struct xemutools_config_st *p = search_option(name);
if (!p)
FATAL("Internal ConfigDB error: not defined option '%s' is queried inside Xemu!", name);
if (p->type == type || (p->type == OPT_NO && type == OPT_BOOL))
return p;
FATAL("Internal ConfigDB error: queried option '%s' with different type as defined inside Xemu!", name);
}
static enum wav2prg_bool find_multiple_character_match(const struct option_names *names, const char *option, uint32_t *option_index, char **last_matched_option, uint32_t *consumed_chars){
char *equal_pos;
free(*last_matched_option);
*last_matched_option = strdup(option);
equal_pos = strchr(*last_matched_option, '=');
if (equal_pos)
*equal_pos = 0;
*consumed_chars = strlen(*last_matched_option) - 1;
return search_option(names, *last_matched_option, option_index);
}
bool DHCPv6::has_reconfigure_accept() const {
return search_option(RECONF_ACCEPT);
}
bool DHCPv6::has_rapid_commit() const {
return search_option(RAPID_COMMIT);
}
static int xemucfg_parse_commandline ( int argc, char **argv, const char *only_this )
{
argc--;
argv++;
while (argc) {
struct xemutools_config_st *o;
if (*argv[0] != '/' && *argv[0] != '-')
OPT_ERROR_CMDLINE("Invalid option '%s', must start with '-'", *argv);
if (!strcasecmp(*argv + 1, "h") || !strcasecmp(*argv + 1, "help") || !strcasecmp(*argv + 1, "-help") || !strcasecmp(*argv + 1, "?")) {
if (!only_this || (only_this && !strcasecmp(only_this, "help"))) {
dump_help();
return 1;
}
argc--;
argv++;
continue;
}
o = search_option(*argv + 1);
if (!o)
OPT_ERROR_CMDLINE("Unknown option '%s'", *argv);
argc--;
argv++;
if (o->type == OPT_NO) {
if (only_this && strcasecmp(only_this, o->name))
continue;
o->value = (void*)1;
} else {
const char *s;
if (!argc)
OPT_ERROR_CMDLINE("Option '%s' requires a parameter, but end of command line detected.", argv[-1]);
if (only_this && strcasecmp(only_this, o->name))
goto do_not;
switch (o->type) {
case OPT_STR:
if (o->value)
free(o->value);
if (check_string_size(*argv))
OPT_ERROR_CMDLINE("Option '%s' has too long value.", argv[1]);
o->value = xemu_strdup(*argv);
break;
case OPT_BOOL:
s = set_boolean_value(*argv, &o->value);
if (s)
OPT_ERROR_CMDLINE("Option '%s' %s, but '%s' is detected.", argv[-1], s, *argv);
break;
case OPT_NUM:
o->value = (void*)(intptr_t)atoi(*argv);
break;
case OPT_PROC:
s = (*(xemucfg_parser_callback_func_t)(o->value))(o, argv[-1] + 1, *argv);
if (s)
OPT_ERROR_CMDLINE("Option's '%s' parameter '%s' is invalid: %s", argv[-1], *argv, s);
break;
case OPT_NO:
break; // make GCC happy to handle all cases ...
}
do_not:
argc--;
argv++;
}
}
return 0;
}
int xemucfg_parse_config_file ( const char *filename_in, int open_can_fail )
{
char *p, cfgmem[CONFIG_FILE_MAX_SIZE + 1];
int lineno = xemu_load_file(filename_in, cfgmem, 0, CONFIG_FILE_MAX_SIZE, open_can_fail ? NULL : "Cannot load specified configuration file.");
if (lineno < 0) {
if (open_can_fail)
return 1;
XEMUEXIT(1);
}
cfgmem[lineno] = 0; // terminate string
if (strlen(cfgmem) != lineno)
FATAL("Config: bad config file (%s), contains NULL character (not a text file)", xemu_load_filepath);
p = cfgmem;
lineno = 1; // line number counter in read config file from now
do {
char *p1, *pn;
// Skip white-spaces at the beginning of the line
while (*p == ' ' || *p == '\t')
p++;
// Search for end of line (relaxed check, too much mixed line-endings I've seen already within ONE config file failed with simple fgets() etc method ...)
p1 = strstr(p, "\r\n");
if (p1) pn = p1 + 2;
else {
p1 = strstr(p, "\n\r");
if (p1) pn = p1 + 2;
else {
p1 = strchr(p, '\n');
if (p1) pn = p1 + 1;
else {
p1 = strchr(p, '\r');
pn = p1 ? p1 + 1 : NULL;
}
}
}
if (p1) *p1 = 0; // terminate line string at EOL marker
p1 = strchr(p, '#');
if (p1) *p1 = 0; // comment - if any - is also excluded
// Chop white-spaces off from the end of the line
p1 = p + strlen(p);
while (p1 > p && (p1[-1] == '\t' || p1[-1] == ' '))
*(--p1) = 0;
// If line is not empty, separate key/val (if there is) and see what it means
if (*p) {
struct xemutools_config_st *o;
const char *s;
p1 = p;
while (*p1 && *p1 != '\t' && *p1 != ' ' && *p1 != '=')
p1++;
if (*p1) {
*(p1++) = 0;
while (*p1 == '\t' || *p1 == ' ' || *p1 == '=')
p1++;
if (!*p1)
p1 = NULL;
} else
p1 = NULL;
printf("Line#%d = \"%s\",\"%s\"" NL, lineno, p, p1 ? p1 : "<no-specified>");
o = search_option(p);
if (!o)
FATAL("Config file (%s) error at line %d: keyword '%s' is unknown.", xemu_load_filepath, lineno, p);
if (o->type != OPT_NO && !p1)
FATAL("Config file (%s) error at line %d: keyword '%s' requires a value.", xemu_load_filepath, lineno, p);
switch (o->type) {
case OPT_STR:
if (o->value)
free(o->value);
if (check_string_size(p1))
FATAL("Config file (%s) error at line %d: keyword '%s' has too long value", xemu_load_filepath, lineno, p);
o->value = xemu_strdup(p1);
break;
case OPT_BOOL:
s = set_boolean_value(p1, &o->value);
if (s)
FATAL("Config file (%s) error at line %d: keyword '%s' %s, but '%s' is detected.", xemu_load_filepath, lineno, p, s, p1);
break;
case OPT_NUM:
o->value = (void*)(intptr_t)atoi(p1);
break;
case OPT_NO:
if (p1)
FATAL("Config file (%s) error at line %d: keyword '%s' DOES NOT require any value, but '%s' is detected.", xemu_load_filepath, lineno, p, p1);
o->value = (void*)1;
break;
case OPT_PROC:
s = (*(xemucfg_parser_callback_func_t)(o->value))(o, p, p1);
if (s)
FATAL("Config file (%s) error at line %d: keyword's '%s' parameter '%s' is invalid: %s", xemu_load_filepath, lineno, p, p1, s);
break;
}
}
// Prepare for next line
p = pn; // start of next line (or EOF if NULL)
lineno++;
} while (p);
return 0;
}
enum wav2prg_bool yet_another_getopt(const struct get_option *options, uint32_t *argc, char **argv){
uint32_t total_options = 0, total_names = 0, i;
struct option_names* names = calloc(1, sizeof(struct option_names));
uint32_t current_arg_num = 0, current_arg_pos = 0, num_arg_non_options = 0;
uint32_t *arg_non_options = malloc(*argc * sizeof(uint32_t));
enum {
beginning_of_one_arg,
single_dash_at_beginning,
double_dash_at_beginning,
one_letter_arg,
multi_letter_arg,
may_be_argument_option,
must_be_argument_option,
next_is_argument_option,
after_multi_letter_no_argument
} state = beginning_of_one_arg;
uint32_t found_option;
enum wav2prg_bool ok_so_far = wav2prg_true;
const struct get_option *options_to_get_names_from;
char *last_matched_option = NULL;
for(options_to_get_names_from = options; options_to_get_names_from->names; options_to_get_names_from++){
const char **name;
for (name = options_to_get_names_from->names; *name != NULL; name++){
if(!search_option(names, *name, NULL)){
names = realloc(names, sizeof(struct option_names) * (total_names + 2));
names[total_names ].option_name = strdup(*name) ;
names[total_names++].option_index = total_options;
names[total_names ].option_name = NULL;
}
}
total_options++;
}
while(current_arg_num < *argc && ok_so_far){
enum {
keep_going,
argument_consumed,
argument_is_not_option
} state_of_current_arg = keep_going;
const char* current_arg = argv[current_arg_num] + current_arg_pos;
switch(state){
case beginning_of_one_arg:
switch(current_arg[0]){
case '-':
state = single_dash_at_beginning;
break;
default:
state_of_current_arg = argument_is_not_option;
break;
}
break;
case single_dash_at_beginning:
switch(current_arg[0]){
case '-':
state = double_dash_at_beginning;
break;
case 0:
state_of_current_arg = argument_is_not_option;
default:
ok_so_far = find_single_character_match(names, current_arg[0], &found_option, &last_matched_option);
if (ok_so_far){
switch(options[found_option].arguments){
case option_no_argument:
ok_so_far = options[found_option].callback(NULL, options[found_option].callback_parameter);
state = one_letter_arg;
break;
case option_may_have_argument:
state = may_be_argument_option;
break;
case option_must_have_argument:
state = must_be_argument_option;
break;
}
}
else
printf("Option %c unknown\n", current_arg[0]);
break;
}
break;
case one_letter_arg:
switch(current_arg[0]){
case 0:
state = beginning_of_one_arg;
break;
default:
ok_so_far = find_single_character_match(names, current_arg[0], &found_option, &last_matched_option);
if (ok_so_far){
switch(options[found_option].arguments){
case option_no_argument:
ok_so_far = options[found_option].callback(NULL, options[found_option].callback_parameter);
state = one_letter_arg;
break;
case option_may_have_argument:
state = may_be_argument_option;
break;
case option_must_have_argument:
state = must_be_argument_option;
break;
}
}
else
printf("Option %c unknown\n", current_arg[0]);
break;
}
break;
case may_be_argument_option:
switch(current_arg[0]){
case 0:
ok_so_far = options[found_option].callback(NULL, options[found_option].callback_parameter);
state = beginning_of_one_arg;
break;
case '=':
current_arg_pos++;
current_arg ++;
/* fallback */
default:
ok_so_far = options[found_option].callback(current_arg, options[found_option].callback_parameter);
state_of_current_arg = argument_consumed;
state = beginning_of_one_arg;
break;
}
break;
case must_be_argument_option:
switch(current_arg[0]){
case 0:
state = next_is_argument_option;
break;
case '=':
current_arg_pos++;
current_arg ++;
/* fallback */
default:
ok_so_far = options[found_option].callback(current_arg, options[found_option].callback_parameter);
state_of_current_arg = argument_consumed;
state = beginning_of_one_arg;
break;
}
break;
case next_is_argument_option:
ok_so_far = options[found_option].callback(current_arg, options[found_option].callback_parameter);
state_of_current_arg = argument_consumed;
state = beginning_of_one_arg;
break;
case double_dash_at_beginning:
switch(current_arg[0]){
case '-':
state_of_current_arg = argument_is_not_option;
state = beginning_of_one_arg;
argv[current_arg_num] += 2;
break;
default:
{
uint32_t matched;
ok_so_far = find_multiple_character_match(names, current_arg, &found_option, &last_matched_option, &matched);
if(ok_so_far){
current_arg_pos += matched;
current_arg += matched;
switch(options[found_option].arguments){
case option_no_argument:
ok_so_far = options[found_option].callback(NULL, options[found_option].callback_parameter);
state = after_multi_letter_no_argument;
break;
case option_may_have_argument:
state = may_be_argument_option;
break;
case option_must_have_argument:
state = must_be_argument_option;
break;
}
}
else
printf("Option %s unknown\n", current_arg);
}
break;
}
break;
case after_multi_letter_no_argument:
switch(current_arg[0]){
case 0:
state = beginning_of_one_arg;
break;
default:
printf("Argument given to option %s\n", last_matched_option);
ok_so_far = wav2prg_false;
break;
}
break;
}
if (state_of_current_arg != keep_going){
if(state_of_current_arg == argument_is_not_option)
arg_non_options[num_arg_non_options++] = current_arg_num;
current_arg_pos += strlen(current_arg);
current_arg += strlen(current_arg);
}
if (current_arg[0] == 0){
current_arg_num++;
current_arg_pos = 0;
}
else
current_arg_pos++;
}
if (state == next_is_argument_option){
printf("No argument given to option %s\n", last_matched_option);
ok_so_far = wav2prg_false;
}
for(i = 0; names[i].option_name; i++)
free(names[i].option_name);
free(names);
for (i = 0; i < num_arg_non_options; i++)
argv[i] = argv[arg_non_options[i]];
*argc = num_arg_non_options;
free(arg_non_options);
free(last_matched_option);
return ok_so_far;
}