feat: added [port] CLi options to faithd

faithd/src/faithd.c

@@ -3,14 +3,17 @@
 #include "logging/logging.h"
 #include <stdlib.h>
 
-enum { OPTIONS_VALID, UNKOWN_OPTION, JUST_PRINT_PRINT_HELP };
+enum { OPTIONS_NORMAL, OPTIONS_INVALID, JUST_PRINT_PRINT_HELP };
+
+static int listen_port = 4433;
 
 static void print_usage(const char *prog) {
   printf("Usage: %s [options]\n"
          "\n"
          "Options:\n"
-         "  -v, --verbose    Enable verbose logging\n"
-         "  -h, --help       Show this help message\n",
+         "  -v, --verbose       Enable verbose logging\n"
+         "  -p, --port [port]   Specify the port to listen on\n"
+         "  -h, --help          Show this help message\n",
          prog);
 }
 
@@ -23,6 +26,17 @@ static int parse_args(int argc, char **argv) {
       continue;
     }
 
+    if (strcmp(arg, "-p") == 0 || strcmp(arg, "--pport") == 0) {
+      if(i + 1 > argc - 1) {
+        fprintf(stderr, "No port number specified for: %s\n", arg);
+        fprintf(stderr, "Usage: -p, --port [port]\n");
+        return OPTIONS_INVALID;
+      }
+      listen_port = atoi(argv[i + 1]);
+      i++;
+      continue;
+    }
+
     if (strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0) {
       print_usage(argv[0]);
       return JUST_PRINT_PRINT_HELP;
@@ -31,21 +45,22 @@ static int parse_args(int argc, char **argv) {
     fprintf(stderr, "Unknown option: %s\n\n", arg);
     print_usage(argv[0]);
 
-    return UNKOWN_OPTION;
+    return OPTIONS_INVALID;
   }
 
-  return OPTIONS_VALID;
+  return OPTIONS_NORMAL;
 }
 
 int main(int argc, char **argv) {
 
-  int rc = parse_args(argc, argv);
-  if (rc != OPTIONS_VALID) {
-    return rc == JUST_PRINT_PRINT_HELP ? EXIT_SUCCESS : EXIT_FAILURE;
+  int options = parse_args(argc, argv);
+
+  if (options != OPTIONS_NORMAL) {
+    return options == JUST_PRINT_PRINT_HELP ? EXIT_SUCCESS : EXIT_FAILURE;
   }
 
   server_state_t  s = {0};
-  server_config_t cfg = {.listen_port = 4433};
+  server_config_t cfg = {.listen_port = listen_port};
 
   if (server_init(&s, &cfg) != FAITH_OK) {
     nob_log(INFO, "Server initialization failed.");

faithd/src/server/server.c

@@ -183,7 +183,7 @@ static faith_status_code_t init_listener(int port) {
   }
 
   if ((bind(listenfd, (struct sockaddr *)&servaddr, sizeof(servaddr))) != 0) {
-    nob_log(ERROR, "Socket bind failed");
+    nob_log(ERROR, "Socket bind failed on port %i: %s", port, strerror(errno));
     close(listenfd);
     return -1;
   }
@@ -196,7 +196,7 @@ static faith_status_code_t init_listener(int port) {
     return -1;
   }
 
-  nob_log(INFO, "Server listening..");
+  nob_log(INFO, "Server listening on %i...", port);
 
   return listenfd;
 }