integrate dietlibc/stdio per default for cdrom and disk only installs

1 files changed, 63 insertions, 0 deletions

diff --git a/mdk-stage1/dietlibc/lib/opendir.c b/mdk-stage1/dietlibc/lib/opendir.c
new file mode 100644
index 000000000..05c0b9bc8
--- /dev/null
+++ b/mdk-stage1/dietlibc/lib/opendir.c
@@ -0,0 +1,63 @@
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#undef _POSIX_PTHREADS
+#include <errno.h>
+
+#include "dirstream.h"
+
+#ifndef O_DIRECTORY
+#define O_DIRECTORY	0200000	/* must be a directory */
+#endif
+
+/*
+ * opendir just makes an open() call - it return NULL if it fails
+ * (open sets errno), otherwise it returns a DIR * pointer.
+ */
+#undef opendir
+DIR *
+opendir(const char * name)
+{
+  int fd;
+  struct stat statbuf;
+  struct dirent *buf;
+  DIR *ptr;
+
+  /*
+  if (stat(name,&statbuf)) return NULL;
+  if (!S_ISDIR(statbuf.st_mode)) {
+    errno = ENOTDIR;
+    return NULL;
+  }
+  */
+  if ((fd = open(name,O_RDONLY|O_DIRECTORY)) < 0)
+    return NULL;
+  /* According to POSIX, directory streams should be closed when
+   * exec. From "Anna Pluzhnikov" <besp@midway.uchicago.edu>.
+   */
+  if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0)
+    return NULL;
+  if (!(ptr=malloc(sizeof(*ptr)))) {
+    close(fd);
+    errno = ENOMEM;
+    return NULL;
+  }
+
+  ptr->dd_max = statbuf.st_blksize;
+  if (ptr->dd_max < 512)
+      ptr->dd_max = 512;
+
+  if (!(buf=malloc(ptr->dd_max))) {
+    close(fd);
+    free(ptr);
+    errno = ENOMEM;
+    return NULL;
+  }
+  ptr->dd_fd = fd;
+  ptr->dd_nextoff = ptr->dd_nextloc = ptr->dd_size = 0;
+  ptr->dd_buf = buf;
+  ptr->dd_getdents = unknown;
+  return ptr;
+}