enable O_CLOEXEC explicit

Signed-off-by: wanggang26 <[email protected]>

Author: gneworld

arch/arm/src/cxd56xx/cxd56_gnss.c

@@ -914,7 +914,7 @@ static int cxd56_gnss_save_backup_data(struct file *filep,
     }
 
   n = file_open(&file, CONFIG_CXD56_GNSS_BACKUP_FILENAME,
-                O_WRONLY | O_CREAT | O_TRUNC);
+                O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC);
   if (n < 0)
     {
       kmm_free(buf);
@@ -2333,7 +2333,8 @@ static void cxd56_gnss_read_backup_file(int *retval)
       goto err;
     }
 
-  ret = file_open(&file, CONFIG_CXD56_GNSS_BACKUP_FILENAME, O_RDONLY);
+  ret = file_open(&file, CONFIG_CXD56_GNSS_BACKUP_FILENAME,
+                  O_RDONLY | O_CLOEXEC);
   if (ret < 0)
     {
       kmm_free(buf);
@@ -2489,7 +2490,8 @@ static void cxd56_gnss_default_sighandler(uint32_t data, void *userdata)
           file_close(&priv->cepfp);
         }
 
-      file_open(&priv->cepfp, CONFIG_CXD56_GNSS_CEP_FILENAME, O_RDONLY);
+      file_open(&priv->cepfp, CONFIG_CXD56_GNSS_CEP_FILENAME,
+                O_RDONLY | O_CLOEXEC);
       return;
 
     case CXD56_GNSS_NOTIFY_TYPE_REQCEPCLOSE:

arch/arm/src/lc823450/lc823450_ipl2.c

@@ -187,7 +187,7 @@ static int install_recovery(const char *srcpath)
       return -1;
     }
 
-  ret = file_open(&rfile, srcpath, O_RDONLY, 0444);
+  ret = file_open(&rfile, srcpath, O_RDONLY | O_CLOEXEC, 0444);
 
   if (file_read(&rfile, &upg_image, sizeof(upg_image)) != sizeof(upg_image))
     {

arch/arm/src/rtl8720c/ameba_hci.c

@@ -389,7 +389,7 @@ static int hci_open(struct file *filep)
   hci_dev_t *dev = inode->i_private;
   int ret;
   ret = file_open(&dev->filep,
-                  CONFIG_AMEBA_HCI_DEV_NAME, O_RDWR);
+                  CONFIG_AMEBA_HCI_DEV_NAME, O_RDWR | O_CLOEXEC);
   if (ret < 0)
     {
       return ret;

binfmt/libelf/libelf_init.c

@@ -127,7 +127,7 @@ int elf_init(FAR const char *filename, FAR struct elf_loadinfo_s *loadinfo)
 
   /* Open the binary file for reading (only) */
 
-  ret = file_open(&loadinfo->file, filename, O_RDONLY);
+  ret = file_open(&loadinfo->file, filename, O_RDONLY | O_CLOEXEC);
   if (ret < 0)
     {
       berr("Failed to open ELF binary %s: %d\n", filename, ret);

binfmt/libnxflat/libnxflat_init.c

@@ -96,7 +96,7 @@ int nxflat_init(const char *filename, struct nxflat_loadinfo_s *loadinfo)
 
   /* Open the binary file */
 
-  ret = file_open(&loadinfo->file, filename, O_RDONLY);
+  ret = file_open(&loadinfo->file, filename, O_RDONLY | O_CLOEXEC);
   if (ret < 0)
     {
       berr("ERROR: Failed to open NXFLAT binary %s: %d\n", filename, ret);

drivers/bch/bchdev_unregister.c

@@ -70,7 +70,7 @@ int bchdev_unregister(FAR const char *chardev)
 
   /* Open the character driver associated with chardev */
 
-  ret = file_open(&filestruct, chardev, O_RDONLY);
+  ret = file_open(&filestruct, chardev, O_RDONLY | O_CLOEXEC);
   if (ret < 0)
     {
       _err("ERROR: Failed to open %s: %d\n", chardev, ret);

drivers/loop/losetup.c

@@ -372,7 +372,7 @@ int losetup(FAR const char *devname, FAR const char *filename,
   ret = -ENOSYS;
   if (!readonly)
     {
-      ret = file_open(&dev->devfile, filename, O_RDWR);
+      ret = file_open(&dev->devfile, filename, O_RDWR | O_CLOEXEC);
     }
 
   if (ret >= 0)
@@ -383,7 +383,7 @@ int losetup(FAR const char *devname, FAR const char *filename,
     {
       /* If that fails, then try to open the device read-only */
 
-      ret = file_open(&dev->devfile, filename, O_RDONLY);
+      ret = file_open(&dev->devfile, filename, O_RDONLY | O_CLOEXEC);
       if (ret < 0)
         {
           ferr("ERROR: Failed to open %s: %d\n", filename, ret);

drivers/mtd/filemtd.c

@@ -749,7 +749,7 @@ FAR struct mtd_dev_s *filemtd_initialize(FAR const char *path, size_t offset,
 
   /* Set the file open mode. */
 
-  mode = O_RDOK | O_WROK;
+  mode = O_RDOK | O_WROK | O_CLOEXEC;
 
   /* Try to open the file.  NOTE that block devices will use a character
    * driver proxy.

drivers/mtd/mtd_config.c

@@ -37,6 +37,7 @@
 #include <stdbool.h>
 #include <string.h>
 #include <poll.h>
+#include <fcntl.h>
 #include <assert.h>
 #include <errno.h>
 #include <debug.h>
@@ -1801,7 +1802,7 @@ int mtdconfig_unregister(void)
   FAR struct inode *inode;
   FAR struct mtdconfig_struct_s *dev;
 
-  ret = file_open(&file, "/dev/config", 0);
+  ret = file_open(&file, "/dev/config", O_CLOEXEC);
   if (ret < 0)
     {
       ferr("ERROR: open /dev/config failed: %d\n", ret);

drivers/mtd/mtd_config_fs.c

@@ -2081,7 +2081,7 @@ int mtdconfig_unregister_by_path(FAR const char *path)
   FAR struct inode *inode;
   FAR struct nvs_fs *fs;
 
-  ret = file_open(&file, path, 0);
+  ret = file_open(&file, path, O_CLOEXEC);
   if (ret < 0)
     {
       ferr("ERROR: open file %s err: %d\n", path, ret);