From 42240de04ce95e458b7b05cfa8357dae40e90b35 Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Mon, 12 Dec 2016 15:13:56 +0100 Subject: fix logging: redirection to DLGLOBAL for invalid categories For out-of-bounds logging categories, redirect to the proper DLGLOBAL array index instead of returning -1. Adjust test expectation which shows that the bugs tested for are fixed. Note: there are separate bounds checking problems, left for another patch. Change-Id: I6ea9a59e005a22e0305454291714fdb9531c346b --- src/logging.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/logging.c b/src/logging.c index 92852c9c..71025432 100644 --- a/src/logging.c +++ b/src/logging.c @@ -328,13 +328,20 @@ err: target->output(target, level, buf); } +/* Catch internal logging category indexes as well as out-of-bounds indexes. + * For internal categories, the ID is negative starting with -1; and internal + * logging categories are added behind the user categories. For out-of-bounds + * indexes, return the index of DLGLOBAL. The returned category index is + * guaranteed to exist in osmo_log_info, otherwise the program would abort, + * which should never happen unless even the DLGLOBAL category is missing. */ static inline int map_subsys(int subsys) { if (subsys < 0) subsys = subsys_lib2index(subsys); if (subsys > osmo_log_info->num_cat) - subsys = DLGLOBAL; + subsys = subsys_lib2index(DLGLOBAL); + return subsys; } -- cgit v1.2.3