git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15226 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

os/vfs/drivers/fatfs/drvfatfs.c

@@ -157,9 +157,11 @@ static msg_t translate_error(FRESULT res) {
     break;
   case FR_NO_FILE:
   case FR_NO_PATH:
-  case FR_INVALID_NAME:
     msg = VFS_RET_ENOENT;
     break;
+  case FR_INVALID_NAME:
+    msg = VFS_RET_ENAMETOOLONG;
+    break;
   case FR_DENIED:
   case FR_WRITE_PROTECTED:
     msg = VFS_RET_EACCES;

os/vfs/drivers/overlay/drvoverlay.c

@@ -94,7 +94,7 @@ static msg_t match_driver(vfs_overlay_driver_c *odp,
   vfs_driver_c **pp;
 
   do {
-    err = vfs_parse_filename(pathp, fname);
+    err = vfs_parse_get_fname(pathp, fname);
     VFS_BREAK_ON_ERROR(err);
 
     /* Searching among registered drivers.*/

os/vfs/drivers/streams/drvstreams.c

@@ -162,7 +162,7 @@ static msg_t drv_open_file(void *instance,
     err = vfs_parse_match_separator(&path);
     VFS_BREAK_ON_ERROR(err);
 
-    err = vfs_parse_filename(&path, fname);
+    err = vfs_parse_get_fname(&path, fname);
     VFS_BREAK_ON_ERROR(err);
 
     err = vfs_parse_match_end(&path);

os/vfs/include/vfserrors.h

@@ -73,6 +73,7 @@
 #define VFS_RET_ENOSPC          (-32 - ENOSPC)  /* No space left on device */
 #define VFS_RET_ESPIPE          (-32 - ESPIPE)  /* Illegal seek */
 #define VFS_RET_EROFS           (-32 - EROFS)   /* Read-only file system */
+#define VFS_RET_ENAMETOOLONG    (-32 - ENAMETOOLONG)/* File or path name too long */
 /** @} */
 
 /*===========================================================================*/

os/vfs/include/vfsparser.h

@@ -57,7 +57,8 @@ extern "C" {
 #endif
   msg_t vfs_parse_match_separator(const char **pathp);
   msg_t vfs_parse_match_end(const char **pathp);
-  msg_t vfs_parse_filename(const char **pathp, char *fname);
+  msg_t vfs_parse_get_fname(const char **pathp, char *fname);
+  msg_t vfs_parse_copy_with_separator(char *dst, const char *src);
 #ifdef __cplusplus
 }
 #endif

os/vfs/src/vfsparser.c

@@ -90,13 +90,13 @@ msg_t vfs_parse_match_end(const char **pathp) {
 }
 
 /**
- * @brief   Parses a path element using the restricted Posix set.
+ * @brief   Fetches the next path element.
  * @note    Consumes the next path separator, if any.
  *
  * @param[in, out]  pathp       pointer to the path under parsing
  * @param[out]      fname       extracted file name
  */
-msg_t vfs_parse_filename(const char **pathp, char *fname) {
+msg_t vfs_parse_get_fname(const char **pathp, char *fname) {
   size_t size;
   const char *p;
 
@@ -136,4 +136,35 @@ msg_t vfs_parse_filename(const char **pathp, char *fname) {
   }
 }
 
+msg_t vfs_parse_copy_with_separator(char *dst, const char *src) {
+  size_t n = 0U;
+  char lc = '\0';
+
+  /* Copying the path.*/
+  while ((*dst = *src) != '\0') {
+
+    if (n > VFS_CFG_PATHLEN_MAX) {
+      return VFS_RET_ENAMETOOLONG;
+    }
+
+    lc = *src++;
+    dst++;
+    n++;
+  }
+
+  /* Checking if it is terminated by a separator, if not then adding it.*/
+  if (lc != '/') {
+
+    if (n > VFS_CFG_PATHLEN_MAX) {
+      return VFS_RET_ENAMETOOLONG;
+    }
+
+    *dst++ = '/';
+    *dst = '\0';
+    n++;
+  }
+
+  return (msg_t)n;
+}
+
 /** @} */