gtk+ save file while preserving file permissions in linux

Question

I'm writing a text editor in gtk+ 2.0 & gtksourceview 2.0. Currently I'm using gtk_text_buffer_get_text and g_file_set_contents to save the textbuffer to a file. I see in the docs for g_file_set_contents that it says:

Also since the file is recreated, existing permissions, access control lists, metadata etc. may be lost.

I looked around devhelp and Google and can't find an alternative way to save the textbuffer to a file while preserving file permissions. Any ideas on how to accomplish this? Thanks.

Answer 1

As @ptomato suggested using a method that truncates the file, then writing out the text buffer worked as desired. Here is a snippet of code which worked for me:

gtk_text_buffer_get_end_iter(tbuffer,&end_iter);
gtk_text_buffer_get_start_iter(tbuffer,&start_iter);
text = gtk_text_buffer_get_text(tbuffer,&start_iter,&end_iter,FALSE);
    FILE *fp;
    fp=fopen(path, "w");
    fprintf(fp, "%s", text);
    fclose(fp);