#include <unistd.h>
#include <stdio.h>
+#include <errno.h>
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);
- return execve(buf, argv, envp);
+ execve(buf, argv, envp);
+ if (errno == ENOENT) errno = EBADF;
+ return -1;
}