libbacktrace: correct memory lengths in Mach-O dsym support

* macho.c (macho_add_dsym): Make space for '/' in dsym. Use correct length when freeing diralc. Close #40

libbacktrace: correct memory lengths in Mach-O dsym support
030bd0a7 · Ian Lance Taylor · b3b57f9e · 030bd0a7
Commit 030bd0a7 authored Sep 08, 2020 by Ian Lance Taylor
Hide whitespace changes
Inline Side-by-side

Showing with 2 additions and 1 deletion

macho.c macho.c +2 -1

No files found.
--- a/macho.c
+++ b/macho.c
@@ -903,6 +903,7 @@ macho_add_dsym (struct backtrace_state *state, const char *filename,
  dsymsuffixdirlen = strlen (dsymsuffixdir);

  dsymlen = (dirnamelen
+	     + 1
 	     + basenamelen
 	     + dsymsuffixdirlen
 	     + basenamelen
@@ -925,7 +926,7 @@ macho_add_dsym (struct backtrace_state *state, const char *filename,

  if (diralc != NULL)
    {
-      backtrace_free (state, diralc, dirnamelen, error_callback, data);
+      backtrace_free (state, diralc, dirnamelen + 1, error_callback, data);
      diralc = NULL;
    }