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Allow the use of posix_spawn() instead of vfork/execlp()

This commit is contained in:
Elad Lahav 2023-01-10 07:02:00 -05:00 committed by Sam Lantinga
parent 56522034db
commit 38b35a3414
2 changed files with 17 additions and 0 deletions
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2
include/build_config/SDL_build_config.h.cmake
View File

@ -262,6 +262,8 @@
#cmakedefine HAVE_XINPUT_GAMEPAD_EX @HAVE_XINPUT_GAMEPAD_EX@
#cmakedefine HAVE_XINPUT_STATE_EX @HAVE_XINPUT_STATE_EX@
#cmakedefine USE_POSIX_SPAWN @USE_POSIX_SPAWN@
/* SDL internal assertion support */
#if @SDL_DEFAULT_ASSERT_LEVEL_CONFIGURED@
#cmakedefine SDL_DEFAULT_ASSERT_LEVEL @SDL_DEFAULT_ASSERT_LEVEL@

15
src/misc/unix/SDL_sysurl.c
View File

@ -28,11 +28,25 @@
#include <unistd.h>
#include <sys/wait.h>
#include <errno.h>
#if USE_POSIX_SPAWN
#include <spawn.h>
extern char **environ;
#endif
int SDL_SYS_OpenURL(const char *url)
{
const pid_t pid1 = fork();
if (pid1 == 0) { /* child process */
#if USE_POSIX_SPAWN
pid_t pid2;
const char *args[] = { "xdg-open", url, NULL };
if (posix_spawnp(&pid2, args[0], NULL, NULL, (char **)args, environ) == 0) {
/* Child process doesn't wait for possibly-blocking grandchild. */
_exit(EXIT_SUCCESS);
} else {
_exit(EXIT_FAILURE);
}
#else
pid_t pid2;
/* Clear LD_PRELOAD so Chrome opens correctly when this application is launched by Steam */
unsetenv("LD_PRELOAD");
@ -47,6 +61,7 @@ int SDL_SYS_OpenURL(const char *url)
/* Child process doesn't wait for possibly-blocking grandchild. */
_exit(EXIT_SUCCESS);
}
#endif
} else if (pid1 < 0) {
return SDL_SetError("fork() failed: %s", strerror(errno));
} else {