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/*
* Created by yuuta on 7/24/22.
*/
#include "config.h"
#include <libac.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
int config_parse(const int argc, const char **argv, ac_connection_parameters_t *params) {
if (argc <= 1) {
fprintf(stderr, "Usage: %s [-t token] [-p port] <ID>@<server>\n"
"Please refer to acronc(1) for more details.\n",
argv[0] ? "acronc" : argv[0]);
return 64;
}
bool svr_set = false;
for (int i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-') {
if (svr_set) {
fprintf(stderr, "Unexpected value: %s\n", arg);
return 64;
}
const char *id = strtok((char *) arg, "@");
if (!id) {
fprintf(stderr, "Malformed argument: should be ID@server.\n");
return 64;
}
const char *server = strtok(NULL, "");
if (!server) {
fprintf(stderr, "Malformed argument: should be ID@server.\n");
return 64;
}
params->host = (char *) server;
params->id = (char *) id;
svr_set = true;
continue;
}
char a = arg[1];
char **value_ptr;
char *port_str = NULL;
switch (a) {
case 't': {
value_ptr = ¶ms->token;
goto read_value;
}
case 'p': {
value_ptr = &port_str;
goto read_value;
}
default: {
fprintf(stderr, "Unexpected switch -%c.\n", a);
return 64;
}
}
read_value:
{
if (i == (argc - 1)) {
fprintf(stderr, "-%c requires an argument.\n", a);
return 64;
}
*value_ptr = (char *) argv[++i];
}
if (port_str) {
errno = 0;
char *endptr;
unsigned long val = strtol(port_str, &endptr, 0);
if (errno) {
const int e = errno;
fprintf(stderr, "Cannot parse port: %s", strerror(e));
return e;
}
if (endptr == port_str) {
fprintf(stderr, "Illegal port.\n");
return 64;
}
if (val > UINT16_MAX) {
fprintf(stderr, "Illegal port.\n");
return 64;
}
params->port = (uint16_t) val;
port_str = NULL;
}
}
if (!params->host || !params->id) {
fprintf(stderr, "Usage: acronc ID@server[:port]\n");
return 64;
}
static char tok[1024];
if (!params->token) {
if (!(params->token = getenv("ACRONC_TOKEN"))) {
printf("Token: ");
#ifdef _WIN32
scanf("%1023[^\r\n]", tok);
#else
scanf("%1023[^\n]", tok);
#endif
params->token = tok;
}
}
return 0;
}
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