Avoid off-by-one error when using readlink

10 years ago · 2e97c38980
parent 40ddc3d6c4
commit 2e97c38980
1 changed files with 1 additions and 1 deletions
--- a/port/stack_trace.cc
+++ b/port/stack_trace.cc
@ -33,7 +33,7 @@ const char* GetExecutableName() {

  char link[1024];
  snprintf(link, sizeof(link), "/proc/%d/exe", getpid());
-  auto read = readlink(link, name, sizeof(name));
+  auto read = readlink(link, name, sizeof(name) - 1);
  if (-1 == read) {
    return nullptr;
  } else {