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String safety (#1548)

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* Array size UB fixes

* Fix ShieldD

* Remove (almost) all unsafe strcpy calls

Bunch of macros. C arrays are easy enough and just need a different call. For various cases where a char* is passed around bare, I've made a TEXT_SPAN macro that can store a length too for bounds checking.

* Move crash handling in safe string operations to separate TU

* strcat safe version

* sprintf made safe too

* Fix compile
This commit is contained in:
Pieter-Jan Briers
2026-05-24 18:43:00 +02:00
committed by GitHub
parent af162bbd0a
commit a6376368ee
100 changed files with 781 additions and 546 deletions
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src/d/d_save.cpp
+1 -1
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@@ -2034,7 +2034,7 @@ void flagFile_c::listenPropertyEvent(const JORPropertyEvent* i_event) {
const char* start_stage_name = dComIfGp_getStartStageName();
char filename[64];
sprintf(filename, "_%02d%02d%02d%02d%02d-%s.zff", time.mon + 1, time.mday, time.hour, time.min, time.sec, start_stage_name);
SAFE_SPRINTF(filename, "_%02d%02d%02d%02d%02d-%s.zff", time.mon + 1, time.mday, time.hour, time.min, time.sec, start_stage_name);
OS_REPORT("write to %s\n", filename);
JORFile file;