[glib: 1/3] gutils: ensure g_find_program_in_path() return an absolute path

[Philip Withnall <pwithnall src gnome org>]

commit dba1fce993b280e2c9481a0d94ec2cc0ddc26739
Author: Luke Yue <lukedyue gmail com>
Date:   Sun May 30 17:51:36 2021 +0800

    gutils: ensure g_find_program_in_path() return an absolute path
    
    Fix a possibility of returning a relative path, according to the
    doc, the function should return an absolute path.
    
    Signed-off-by: Luke Yue <lukedyue gmail com>

 glib/gutils.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)
---
diff --git a/glib/gutils.c b/glib/gutils.c
index f72a5a148..b7a2113d4 100644
--- a/glib/gutils.c
+++ b/glib/gutils.c
@@ -340,7 +340,17 @@ g_find_program_in_path (const gchar *program)
     {
       if (g_file_test (program, G_FILE_TEST_IS_EXECUTABLE) &&
          !g_file_test (program, G_FILE_TEST_IS_DIR))
-        return g_strdup (program);
+        {
+          gchar *out = NULL, *cwd = NULL;
+
+          if (g_path_is_absolute (program))
+            return g_strdup (program);
+
+          cwd = g_get_current_dir ();
+          out = g_build_filename (cwd, program, NULL);
+          g_free (cwd);
+          return g_steal_pointer (&out);
+        }
       else
         return NULL;
     }