Users (OpenBSD): add support

Author: CarterLi

CMakeLists.txt

@@ -819,7 +819,7 @@ elseif(OpenBSD)
         src/detection/theme/theme_linux.c
         src/detection/tpm/tpm_nosupport.c
         src/detection/uptime/uptime_bsd.c
-        src/detection/users/users_nosupport.c
+        src/detection/users/users_obsd.c
         src/detection/wallpaper/wallpaper_linux.c
         src/detection/wifi/wifi_nosupport.c
         src/detection/wm/wm_nosupport.c

src/detection/users/users_obsd.c

@@ -0,0 +1,36 @@
+#include "fastfetch.h"
+#include "users.h"
+#include "common/io/io.h"
+
+#include <utmp.h>
+
+const char* ffDetectUsers(FF_MAYBE_UNUSED FFUsersOptions* options, FFlist* users)
+{
+    FF_AUTO_CLOSE_FILE FILE* fp = fopen(_PATH_UTMP, "r");
+    if (!fp) return "fopen(_PATH_UTMP, r) failed";
+
+    struct utmp n;
+next:
+    while (fread(&n, sizeof(n), 1, fp) == 1)
+    {
+        if (!n.ut_name[0]) continue;
+
+        if (options->myselfOnly && !ffStrbufEqualS(&instance.state.platform.userName, n.ut_name))
+            continue;
+
+        FF_LIST_FOR_EACH(FFUserResult, user, *users)
+        {
+            if (ffStrbufEqualS(&user->name, n.ut_name))
+                goto next;
+        }
+
+        FFUserResult* user = (FFUserResult*) ffListAdd(users);
+        ffStrbufInitS(&user->name, n.ut_name);
+        ffStrbufInitS(&user->hostName, n.ut_host);
+        ffStrbufInitS(&user->sessionName, n.ut_line);
+        ffStrbufInit(&user->clientIp);
+        user->loginTime = (uint64_t) n.ut_time * 1000;
+    }
+    
+    return NULL;
+}