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add options to set address and port, improved usage page

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This commit is contained in:
jazz
2026-04-15 11:12:05 -05:00
parent e3cf81ab3f
commit 07e742aa4e
2 changed files with 49 additions and 18 deletions
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55
main.cc
View File

@@ -23,7 +23,7 @@
using namespace std;
const int PORT_NUM = 8888;
int PORT_NUM = 8888;
string IP_ADDRESS = "0.0.0.0";
const int DEFAULT_CUR_X = 2; // the x position of the preferred default cursor
// position for message entry
@@ -60,33 +60,52 @@ struct waitClientArgs {
// struct to keep track of
};
void usage(char *progname);
void usage(char *progname, bool *m);
int
main(int argc, char *argv[])
{
/*
* userInput: character buffer for the user's next message
* ch: getopt
* exit: set to true when infinite loop is to end
* userInput: character buffer for the user's next message
* modeless: check whether a modeless exit was accidental
*/
char *userInput = new char[1024];
int ch;
bool exit = false;
char *userInput = new char[1024];
bool modeless = false;
if (argc > 1) {
if (!strncmp(argv[1], "client", 6)) {
if (argc == 1) {
usage(argv[0], &modeless);
goto leave;
}
while ((ch = getopt(argc, argv, "m:a:p:h")) != -1)
switch (ch) {
case 'm':
if (!strncmp(optarg, "client", 6)) {
logFileName = "client.txt";
mode = CLIENT_MODE;
} else if (!strncmp(argv[1], "server", 6)) {
} else if (!strncmp(optarg, "server", 6)) {
logFileName = "server.txt";
mode = SERVER_MODE;
}
} else {
usage(argv[0]);
modeless = true;
usage(argv[0], &modeless);
goto leave;
}
break;
case 'a':
IP_ADDRESS = optarg;
break;
case 'p':
PORT_NUM = atoi(optarg);
break;
case 'h': default:
usage(argv[0], &modeless);
goto leave;
break;
}
// putting this lower down to circumvent the terminal brick when the
// socket was already in use results in all network functonality no
@@ -180,17 +199,29 @@ leave:
"setting mode.");
return 1;
}
return 2;
break;
}
return 0;
}
/* remember to call 'goto leave' after running */
void
usage(char *progname)
usage(char *progname, bool *m) // m:a:p:h
{
printf("\x1b[1mUsage:\x1b[0m\n"
"\t%s client\t\x1b[3m# run as client\x1b[0m\n"
"\t%s server\t\x1b[3m# run as server\x1b[0m\n",
"\t%s server\t\x1b[3m# run as server\x1b[0m\n"
"\n\n"
"\x1b[1mOptions:\x1b[0m\n"
"\t\x1b[1m-m [client|server]\x1b[0m\tMode \x1b[1;31m(required)\x1b[0m\n"
"\n"
"\t\x1b[1m-a [255.255.255.255]\x1b[0m\tAddress\n"
"\t\t\t\tserver mode: listen address \x1b[33m(default: 0.0.0.0)\x1b[0m\n"
"\t\t\t\tclient mode: address of server \x1b[33m(default: 127.0.0.1)\x1b[0m\n"
"\n"
"\t\x1b[1m-p [0-65535]\x1b[0m\t\tPort number\n",
progname, progname);
*m = true;
}

2
public.h
View File

@@ -8,7 +8,7 @@ using namespace std;
typedef enum { NO_MODE = 0, SERVER_MODE = 1, CLIENT_MODE = 2 } chatmode_t;
extern chatmode_t mode;
extern const int PORT_NUM;
extern int PORT_NUM;
extern string IP_ADDRESS;
extern const int DEFAULT_CUR_X;
extern const int DEFAULT_CUR_Y;