Add workaround for bad QoI posix_spawn()

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/sysdeps/tryposixspawnearlyreturn.c b/src/sysdeps/tryposixspawnearlyreturn.c
new file mode 100644
index 0000000..347f2be
--- /dev/null
+++ b/src/sysdeps/tryposixspawnearlyreturn.c
@@ -0,0 +1,24 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <spawn.h>
+
+int main (void)
+{
+  posix_spawnattr_t attr ;
+  int e ;
+  char tmp[40] = "./tryposixspawnearlyreturn child:XXXXXX" ;
+  char *argv[2] = { tmp, 0 } ;
+  char *env = 0 ;
+  int fd = mkstemp(tmp) ;
+  if (fd == -1) return 111 ;
+  e = posix_spawnattr_init(&attr) ;
+  if (e) return 111 ;
+  e = posix_spawnattr_setflags(&attr, 0) ;
+  if (e) return 111 ;
+  if (close(fd) == -1 || unlink(tmp) == -1) return 111 ;
+  e = posix_spawn(0, argv[0], 0, &attrp, argv, &env) ;
+  return e ? e == ENOENT ? 1 : 111 : 0 ;
+}