| 1 | |
| 2 | /* Test program to test dynamic loading with the loadso subsystem. |
| 3 | */ |
| 4 | |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | |
| 8 | #include "SDL.h" |
| 9 | |
| 10 | typedef int (*fntype)(const char *); |
| 11 | |
| 12 | int main(int argc, char *argv[]) |
| 13 | { |
| 14 | int retval = 0; |
| 15 | int hello = 0; |
| 16 | const char *libname = NULL; |
| 17 | const char *symname = NULL; |
| 18 | void *lib = NULL; |
| 19 | fntype fn = NULL; |
| 20 | |
| 21 | if (argc != 3) { |
| 22 | const char *app = argv[0]; |
| 23 | fprintf(stderr, "USAGE: %s <library> <functionname>\n", app); |
| 24 | fprintf(stderr, " %s --hello <lib with puts()>\n", app); |
| 25 | return 1; |
| 26 | } |
| 27 | |
| 28 | /* Initialize SDL */ |
| 29 | if ( SDL_Init(0) < 0 ) { |
| 30 | fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); |
| 31 | return 2; |
| 32 | } |
| 33 | |
| 34 | if (strcmp(argv[1], "--hello") == 0) { |
| 35 | hello = 1; |
| 36 | libname = argv[2]; |
| 37 | symname = "puts"; |
| 38 | } else { |
| 39 | libname = argv[1]; |
| 40 | symname = argv[2]; |
| 41 | } |
| 42 | |
| 43 | lib = SDL_LoadObject(libname); |
| 44 | if (lib == NULL) { |
| 45 | fprintf(stderr, "SDL_LoadObject('%s') failed: %s\n", |
| 46 | libname, SDL_GetError()); |
| 47 | retval = 3; |
| 48 | } else { |
| 49 | fn = (fntype) SDL_LoadFunction(lib, symname); |
| 50 | if (fn == NULL) { |
| 51 | fprintf(stderr, "SDL_LoadFunction('%s') failed: %s\n", |
| 52 | symname, SDL_GetError()); |
| 53 | retval = 4; |
| 54 | } else { |
| 55 | printf("Found %s in %s at %p\n", symname, libname, fn); |
| 56 | if (hello) { |
| 57 | printf("Calling function...\n"); |
| 58 | fflush(stdout); |
| 59 | fn(" HELLO, WORLD!\n"); |
| 60 | printf("...apparently, we survived. :)\n"); |
| 61 | printf("Unloading library...\n"); |
| 62 | fflush(stdout); |
| 63 | } |
| 64 | } |
| 65 | SDL_UnloadObject(lib); |
| 66 | } |
| 67 | SDL_Quit(); |
| 68 | return(0); |
| 69 | } |
| 70 | |
| 71 | |