#pragma prototyped
#include <ast.h>
#if _lib_execve
NoN(execve)
#else
#include <sig.h>
#include <wait.h>
#include <error.h>
static pid_t childpid;
static void
execsig(int sig)
{
kill(childpid, sig);
signal(sig, execsig);
}
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern int
execve(const char* path, char* const argv[], char* const arge[])
{
int status;
if ((childpid = spawnve(path, argv, arge)) < 0)
return(-1);
for (status = 0; status < 64; status++)
signal(status, execsig);
while (waitpid(childpid, &status, 0) == -1)
if (errno != EINTR) return(-1);
if (WIFSIGNALED(status))
{
signal(WTERMSIG(status), SIG_DFL);
kill(getpid(), WTERMSIG(status));
pause();
}
else status = WEXITSTATUS(status);
exit(status);
}
#endif