[SDL2] crash on wayland with SDL_PushEvent and SDL_TEXTINPUT

[bobbens]

I had some code that was working, and when I tested recently it segfaulted. I was able to reproduce the minimum case below:

#include <SDL2/SDL.h>
int main(int argc, char* args[]) {
   SDL_Init(SDL_INIT_VIDEO);

   SDL_Event evt;
   memset( &evt, 0, sizeof(SDL_Event) );
   evt.type = SDL_TEXTINPUT;
   evt.text.timestamp = SDL_GetTicks();
   evt.text.windowID = 0;
   snprintf( evt.text.text, SDL_TEXTINPUTEVENT_TEXT_SIZE, "test" );
   SDL_PushEvent(&evt); // SEGFAULT

   return 0;
}

It crashes on my system:

• Arch Linux
• Wayland
• Plasma6
• Using sdl2-compat

Note the SDL3 equivalent doesn't seem to crash:

#include <SDL3/SDL.h>
#include <string.h>
int main(int argc, char* args[]) {
   SDL_Init(SDL_INIT_VIDEO);

   SDL_Event evt;
   memset( &evt, 0, sizeof(SDL_Event) );
   evt.type = SDL_EVENT_TEXT_INPUT;
   evt.text.timestamp = SDL_GetTicks();
   evt.text.windowID = 0;
   evt.text.text = "test";
   SDL_PushEvent(&evt); // No problemo

   return 0;
}

Issue is likely related to using a fixed sized buffer for SDL2, and a pointer in SDL3, but I haven't looked into it.