Client can now actually send messages via command

Client can now specify the recipient of a message and type it. Messages for offline users are saved, unaccesible for now.
2026-01-05 18:04:59 +01:00
parent 4a089ed368
commit 6d495468c8
5 changed files with 216 additions and 54 deletions
@@ -0,0 +1,26 @@
+#include <stdlib.h>
+#include <string.h>
+
+static char alphs[] = {'-', '_', '0', '1', '2', '3', '4', '5', '6', '7', '8',
+                       '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+                       'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
+                       'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F',
+                       'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q',
+                       'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '\0'};
+
+// Generate an id used for messages. Could be less than 16 chars, but thats what
+// fits into the `command` field of `msgbuf_t`.
+void get_id(char *id_buf) {
+  int alph_size = strlen(alphs) - 1;
+
+  for (int i = 0; i < 16; i++) {
+    int random_num;
+    do {
+      random_num = rand();
+    } while (random_num >= (RAND_MAX - RAND_MAX % alph_size));
+
+    random_num %= alph_size;
+    id_buf[i] = alphs[random_num];
+  }
+  id_buf[15] = '\0';
+}