[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/misc/dirent/opendir.c b/ap/build/uClibc/libc/misc/dirent/opendir.c
new file mode 100644
index 0000000..66a5cc9
--- /dev/null
+++ b/ap/build/uClibc/libc/misc/dirent/opendir.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/dir.h>
+#include <sys/stat.h>
+#include <not-cancel.h>
+#include <dirent.h>
+#include "dirstream.h"
+
+static DIR *fd_to_DIR(int fd, __blksize_t size)
+{
+ DIR *ptr;
+
+ ptr = malloc(sizeof(*ptr));
+ if (!ptr)
+ return NULL;
+
+ ptr->dd_fd = fd;
+ ptr->dd_nextloc = ptr->dd_size = ptr->dd_nextoff = 0;
+ ptr->dd_max = size;
+ if (ptr->dd_max < 512)
+ ptr->dd_max = 512;
+
+ ptr->dd_buf = calloc(1, ptr->dd_max);
+ if (!ptr->dd_buf) {
+ free(ptr);
+ return NULL;
+ }
+ __UCLIBC_MUTEX_INIT_VAR(ptr->dd_lock);
+
+ return ptr;
+}
+
+DIR *fdopendir(int fd)
+{
+ int flags;
+ struct stat st;
+
+ if (fstat(fd, &st))
+ return NULL;
+ if (!S_ISDIR(st.st_mode)) {
+ __set_errno(ENOTDIR);
+ return NULL;
+ }
+
+ flags = fcntl(fd, F_GETFL);
+ if (flags == -1)
+ return NULL;
+ if ((flags & O_ACCMODE) == O_WRONLY) {
+ __set_errno(EINVAL);
+ return NULL;
+ }
+
+ return fd_to_DIR(fd, st.st_blksize);
+}
+
+/* opendir just makes an open() call - it return NULL if it fails
+ * (open sets errno), otherwise it returns a DIR * pointer.
+ */
+DIR *opendir(const char *name)
+{
+ int fd;
+ struct stat statbuf;
+ DIR *ptr;
+
+#ifndef O_DIRECTORY
+ /* O_DIRECTORY is linux specific and has been around since like 2.1.x */
+ if (stat(name, &statbuf))
+ return NULL;
+ if (!S_ISDIR(statbuf.st_mode)) {
+ __set_errno(ENOTDIR);
+ return NULL;
+ }
+# define O_DIRECTORY 0
+#endif
+ fd = open_not_cancel_2(name, O_RDONLY|O_NDELAY|O_DIRECTORY|O_CLOEXEC);
+ if (fd < 0)
+ return NULL;
+ /* Note: we should check to make sure that between the stat() and open()
+ * call, 'name' didnt change on us, but that's only if O_DIRECTORY isnt
+ * defined and since Linux has supported it for like ever, i'm not going
+ * to worry about it right now (if ever). */
+
+ if (fstat(fd, &statbuf) < 0) {
+ /* this close() never fails
+ *int saved_errno;
+ *saved_errno = errno; */
+ close_not_cancel_no_status(fd);
+ /*__set_errno(saved_errno);*/
+ return NULL;
+ }
+
+ /* According to POSIX, directory streams should be closed when
+ * exec. From "Anna Pluzhnikov" <besp@midway.uchicago.edu>.
+ */
+#ifndef __ASSUME_O_CLOEXEC
+ fcntl_not_cancel(fd, F_SETFD, FD_CLOEXEC);
+#endif
+
+ ptr = fd_to_DIR(fd, statbuf.st_blksize);
+
+ if (!ptr) {
+ close_not_cancel_no_status(fd);
+ __set_errno(ENOMEM);
+ }
+ return ptr;
+}
+libc_hidden_def(opendir)