fixes file name extraction on download; fixes wrong user name case

src/db.c

@@ -129,6 +129,12 @@ int32_t db_user_auth(i_auth_t *c, o_auth_t *r) {
   if (PQresultStatus(res) != PGRES_TUPLES_OK && !PQntuples(res))
     return exit_query(1);
 
+  const int tup_len = PQntuples(res);
+
+  if (tup_len == 0) {
+    return exit_query(4);
+  }
+
   const char *pass = PQgetvalue(res, 0, 2);
   string_to_SHA256(c->pass, passHashed);
   if (pass == NULL) {

src/file_p.c

@@ -92,8 +92,8 @@ void file_list(session *sess, server_data_t *s_d, i_file_list_t *f_args) {
         !fl_current->permissions) {
       continue;
     }
-    int h_len = sprintf(item_h, "%s %zu %s", fl_current->name, fl_current->size,
+    int h_len = sprintf(item_h, "[%s] %zu %s", fl_current->name,
-                        fl_current->owner);
+                        fl_current->size, fl_current->owner);
     int d_len = strlen(fl_current->description);
 
     for (int i = h_len; i < d_len; i++) {
@@ -143,7 +143,11 @@ int32_t file_send_prepare(session *sess, char *line, server_data_t *s_d) {
   char err_mes[256];
   uint32_t mlen;
 
-  sscanf(line, "%*s %*s %s", args.name);
+  char *name_begin = strchr(line, '[') + 1;
+  char *name_end = strrchr(line, ']');
+  int name_len = name_end - name_begin;
+  strncpy(args.name, name_begin, name_len);
+  args.name[name_len] = 0;
   sess->file = db_get_file(&args);
 
   if (sess->file == NULL)
@@ -183,7 +187,6 @@ int file_receive_prepare(session *sess, char *line, server_data_t *s_d) {
   int sd = sess->sd;
   size_t fsize = 0;
   int perm;
-  /* TODO:  */
   char *name_begin = strchr(line, '"') + 1;
   char *name_end = strrchr(line, '"');
   int name_len = name_end - name_begin;

src/main.c

@@ -4,6 +4,7 @@
 #include "main.h"
 #include "server.h"
 #include "db.h"
+#include <stdio.h>
 
 /* *** MAIN *** */
 int main(int argc, char *argv[]) {
@@ -12,6 +13,8 @@ int main(int argc, char *argv[]) {
   server_data.welcome_message = get_welcome_mes();
   init_db_connection();
   server_data.ls = start_server();
+  /* TODO: display server port */
+  printf("Server is started!\n");
   server_main_loop(&server_data);
   return 0;
 }

src/user.c

@@ -17,7 +17,7 @@ int32_t create_user(session *sess, char *line) {
     res = db_user_create(&p);
     if (res > 0) {
       sess->state = OP_WAIT;
-      sess->uname = malloc(strlen(p.uname));
+      sess->uname = malloc(strlen(p.uname)+1);
       strcpy(sess->uname, p.uname);
       sess->uid = res;
       sess->privileges = 1; /* by default */