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Add options in format -opt=value

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This commit is contained in:
Kamil Trzcinski
2022-04-06 09:22:35 +02:00
parent 4e3c235b36
commit 23178325cf
5 changed files with 43 additions and 22 deletions
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45
opts/opts.c
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@ -29,18 +29,28 @@ static void print_help(option_t *options)
}
}
static int parse_opt(option_t *options, const char *key, const char *value)
static int parse_opt(option_t *options, const char *key)
{
option_t *option = NULL;
const char *value = strchr(key, '=');
for (int i = 0; options[i].name; i++) {
if (!strcmp(key, options[i].name)) {
option = &options[i];
break;
if (value) {
if (!strncmp(key, options[i].name, value - key)) {
option = &options[i];
value++; // ignore '='
break;
}
} else {
// require exact match
if (!strcmp(key, options[i].name)) {
option = &options[i];
value = option->default_value;
break;
}
}
}
if (!option) {
if (!option || !value) {
return -EINVAL;
}
@ -68,22 +78,23 @@ int parse_opts(option_t *options, int argc, char *argv[])
for (arg = 1; arg < argc; arg += 2) {
const char *key = argv[arg];
if (!strcmp(key, "-help")) {
if (key[0] == '-') {
key++;
if (key[0] == '-')
key++;
} else {
E_LOG_ERROR(NULL, "The '%s' is not option (should start with - or --).", key);
}
if (!strcmp(key, "help")) {
print_help(options);
return -1;
}
if (arg+1 == argc) {
E_LOG_ERROR(NULL, "The %s is missing argument.", key);
}
if (key[0] != '-') {
E_LOG_ERROR(NULL, "The '%s' is not option (should start with -).", key);
}
int ret = parse_opt(options, key+1, argv[arg+1]);
int ret = parse_opt(options, key);
if (ret <= 0) {
E_LOG_ERROR(NULL, "Parsing '%s %s' returned '%d'.", key, argv[arg+1], ret);
E_LOG_ERROR(NULL, "Parsing '%s' returned '%d'.", argv[arg], ret);
}
}