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Call snprintf() from signal handler only if required in test-async-sig

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snprintf() is not guaranteed to be safely callable from a signal
handler, so avoid calling it in the default non-verbose case.
This commit is contained in:
Tommi Rantala 2012-08-16 10:25:56 +03:00
parent 7263a97ced
commit 848ad53a47
1 changed files with 2 additions and 1 deletions
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3
tests/test-async-sig.c
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@ -89,7 +89,8 @@ do_backtrace (int may_print, int get_proc_name)
buf[0] = '\0'; buf[0] = '\0';
if (get_proc_name || (may_print && verbose)) if (get_proc_name || (may_print && verbose))
{ {
if (unw_get_proc_name (&cursor, name, sizeof (name), &off) == 0) ret = unw_get_proc_name (&cursor, name, sizeof (name), &off);
if (ret == 0 && (may_print && verbose))
{ {
if (off) if (off)
snprintf (buf, sizeof (buf), "<%s+0x%lx>", name, (long) off); snprintf (buf, sizeof (buf), "<%s+0x%lx>", name, (long) off);