#include "stdio_impl.h"
+#include <stdlib.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
FILE *__fdopen(int fd, const char *mode)
{
FILE *f;
struct termios tio;
- int plus = !!strchr(mode, '+');
/* Check for valid initial mode character */
- if (!strchr("rwa", *mode)) return 0;
+ if (!strchr("rwa", *mode)) {
+ errno = EINVAL;
+ return 0;
+ }
/* Allocate FILE+buffer or fail */
if (!(f=malloc(sizeof *f + UNGET + BUFSIZ))) return 0;
memset(f, 0, sizeof *f);
/* Impose mode restrictions */
- if (!plus) f->flags = (*mode == 'r') ? F_NOWR : F_NORD;
+ if (!strchr(mode, '+')) f->flags = (*mode == 'r') ? F_NOWR : F_NORD;
+
+ /* Apply close-on-exec flag */
+ if (strchr(mode, 'e')) __syscall(SYS_fcntl, fd, F_SETFD, FD_CLOEXEC);
/* Set append mode on fd if opened for append */
if (*mode == 'a') {