int fexecve(int fd, char *const argv[], char *const envp[])
{
static const char proc[] = "/proc/self/fd/%d";
char buf[sizeof proc + 3*sizeof(int)];
snprintf(buf, sizeof buf, proc, fd);
int fexecve(int fd, char *const argv[], char *const envp[])
{
static const char proc[] = "/proc/self/fd/%d";
char buf[sizeof proc + 3*sizeof(int)];
snprintf(buf, sizeof buf, proc, fd);