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| author | David Leadbeater <dgl@dgl.cx> | 2014-06-19 03:12:05 +0100 |
|---|---|---|
| committer | David Leadbeater <dgl@dgl.cx> | 2014-06-27 11:08:01 +0100 |
| commit | 211422cbe81570b1a70a6c4fe8a09b84cfa4f646 (patch) | |
| tree | b60608dacb9d0a88451d5118b14e05051bc75c68 /src/perl | |
| parent | 9d0d4d9437649ed96381120e68a8d4035f6ded7e (diff) | |
| download | irssi-211422cbe81570b1a70a6c4fe8a09b84cfa4f646.zip | |
Switch to using G_DISCARD for call_pv
PUTBACK was being called even for the error path which didn't use the
stack. Emitting the "script error" signal can involve running Perl code
(Irssi:core::destroy) therefore the stack can be reallocated. This
can result in the perl stack being corrupted because the local stack
pointer is out of date (although as it's use of freed memory the crash
is not always instant).
Diffstat (limited to 'src/perl')
| -rw-r--r-- | src/perl/perl-core.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/src/perl/perl-core.c b/src/perl/perl-core.c index 08d0738c..88726940 100644 --- a/src/perl/perl-core.c +++ b/src/perl/perl-core.c @@ -217,8 +217,6 @@ static int perl_script_eval(PERL_SCRIPT_REC *script) { dSP; char *error; - int retcount; - SV *ret; ENTER; SAVETMPS; @@ -229,10 +227,10 @@ static int perl_script_eval(PERL_SCRIPT_REC *script) XPUSHs(sv_2mortal(new_pv(script->name))); PUTBACK; - retcount = perl_call_pv(script->path != NULL ? - "Irssi::Core::eval_file" : - "Irssi::Core::eval_data", - G_EVAL|G_SCALAR); + perl_call_pv(script->path != NULL ? + "Irssi::Core::eval_file" : + "Irssi::Core::eval_data", + G_EVAL|G_DISCARD); SPAGAIN; error = NULL; @@ -244,11 +242,8 @@ static int perl_script_eval(PERL_SCRIPT_REC *script) signal_emit("script error", 2, script, error); g_free(error); } - } else if (retcount > 0) { - ret = POPs; } - PUTBACK; FREETMPS; LEAVE; |