diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/grantpt.c')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/grantpt.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/grantpt.c b/REORG.TODO/sysdeps/unix/sysv/linux/grantpt.c new file mode 100644 index 0000000000..8cebde36ed --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/grantpt.c @@ -0,0 +1,44 @@ +#include <assert.h> +#include <ctype.h> +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <paths.h> +#include <stdlib.h> +#include <unistd.h> + +#include <not-cancel.h> + +#include "pty-private.h" + +#if HAVE_PT_CHOWN +/* Close all file descriptors except the one specified. */ +static void +close_all_fds (void) +{ + DIR *dir = __opendir ("/proc/self/fd"); + if (dir != NULL) + { + struct dirent64 *d; + while ((d = __readdir64 (dir)) != NULL) + if (isdigit (d->d_name[0])) + { + char *endp; + long int fd = strtol (d->d_name, &endp, 10); + if (*endp == '\0' && fd != PTY_FILENO && fd != dirfd (dir)) + close_not_cancel_no_status (fd); + } + + __closedir (dir); + + int nullfd = open_not_cancel_2 (_PATH_DEVNULL, O_RDONLY); + assert (nullfd == STDIN_FILENO); + nullfd = open_not_cancel_2 (_PATH_DEVNULL, O_WRONLY); + assert (nullfd == STDOUT_FILENO); + __dup2 (STDOUT_FILENO, STDERR_FILENO); + } +} +# define CLOSE_ALL_FDS() close_all_fds() +#endif + +#include <sysdeps/unix/grantpt.c> |