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* error.c (report_bug): use a small message buffer instead of BUFSIZ.

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It is needed for avoiding nested SIGSEGV on Linux.
  Note: BUFSIZ is not proper buffer size. It's unrelated with maximum
  filename length. :-/
  [Bug #5139] [ruby-dev:44315]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32844 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-08-04 11:23:16 +00:00
parent 1c647cc203
commit 3abbda4f6e
2 changed files with 11 additions and 2 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
Thu Aug 4 20:19:11 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* error.c (report_bug): use a small message buffer instead of BUFSIZ.
It is needed for avoiding nested SIGSEGV on Linux.
Note: BUFSIZ is not proper buffer size. It's unrelated with maximum
filename length. :-/
[Bug #5139] [ruby-dev:44315]
Thu Aug 4 16:08:45 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* tool/rbinstall.rb (gem): install all gemspecs under lib and ext.

5
error.c
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@ -251,9 +251,10 @@ rb_warn_m(int argc, VALUE *argv, VALUE exc)
static void
report_bug(const char *file, int line, const char *fmt, va_list args)
{
char buf[BUFSIZ];
/* SIGSEGV handler might have a very small stack. Thus we need to use it carefully. */
char buf[256];
FILE *out = stderr;
int len = err_position_0(buf, BUFSIZ, file, line);
int len = err_position_0(buf, 256, file, line);
if ((ssize_t)fwrite(buf, 1, len, out) == (ssize_t)len ||
(ssize_t)fwrite(buf, 1, len, (out = stdout)) == (ssize_t)len) {