pxe: Drop get_bootfile_path()

This function no longer makes sense, since it is pretty easy to prepend
the boot directory to the filename. Drop it and update its only caller.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Artem Lapkin <email2tema@gmail.com>
Tested-by: Artem Lapkin <email2tema@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>

diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c
index 5d47d30..48fb707 100644 (file)
--- a/boot/pxe_utils.c
+++ b/boot/pxe_utils.c
@@ -65,47 +65,6 @@ int format_mac_pxe(char *outbuf, size_t outbuf_len)
 }
 
 /**
- * get_bootfile_path() - Figure out the path of a file to read
- *
- * Copies the boot directory into the supplied buffer. If there is no boot
- * directory, set it to ""
- *
- * @ctx: PXE context
- * @file_path: File path to read (relative to the PXE file)
- * @bootfile_path: Place to put the bootfile path
- * @bootfile_path_size: Size of @bootfile_path in bytes
- * @allow_abs_path: true to allow an absolute path (where @file_path starts with
- *     '/', false to return an empty path (and success) in that case
- * Returns 1 for success, -ENOSPC if bootfile_path_size is to small to hold the
- *     resulting path
- */
-static int get_bootfile_path(struct pxe_context *ctx, const char *file_path,
-                            char *bootfile_path, size_t bootfile_path_size,
-                            bool allow_abs_path)
-{
-       size_t path_len = 0;
-
-       /* Only syslinux allows absolute paths */
-       if (file_path[0] == '/' && allow_abs_path)
-               goto ret;
-
-       path_len = strlen(ctx->bootdir);
-       if (bootfile_path_size < path_len + 1) {
-               printf("bootfile_path too small. (%zd < %zd)\n",
-                      bootfile_path_size, path_len);
-
-               return -ENOSPC;
-       }
-
-       strncpy(bootfile_path, ctx->bootdir, path_len);
-
- ret:
-       bootfile_path[path_len] = '\0';
-
-       return 1;
-}
-
-/**
  * get_relfile() - read a file relative to the PXE file
  *
  * As in pxelinux, paths to files referenced from files we retrieve are
@@ -124,15 +83,13 @@ static int get_relfile(struct pxe_context *ctx, const char *file_path,
        size_t path_len;
        char relfile[MAX_TFTP_PATH_LEN + 1];
        char addr_buf[18];
-       int err;
 
-       err = get_bootfile_path(ctx, file_path, relfile, sizeof(relfile),
-                               ctx->allow_abs_path);
-       if (err < 0)
-               return err;
+       if (file_path[0] == '/' && ctx->allow_abs_path)
+               *relfile = '\0';
+       else
+               strncpy(relfile, ctx->bootdir, MAX_TFTP_PATH_LEN);
 
-       path_len = strlen(file_path);
-       path_len += strlen(relfile);
+       path_len = strlen(file_path) + strlen(relfile);
 
        if (path_len > MAX_TFTP_PATH_LEN) {
                printf("Base path too long (%s%s)\n", relfile, file_path);

diff --git a/include/pxe_utils.h b/include/pxe_utils.h
index 543d024..8b50f2e 100644 (file)
--- a/include/pxe_utils.h
+++ b/include/pxe_utils.h
@@ -202,7 +202,8 @@ int format_mac_pxe(char *outbuf, size_t outbuf_len);
  * @allow_abs_path: true to allow absolute paths
  * @bootfile: Bootfile whose directory loaded files are relative to, NULL if
  *     none
- * @return 0 if OK, -ENOMEM if out of memory
+ * @return 0 if OK, -ENOMEM if out of memory, -E2BIG if bootfile is larger than
+ *     MAX_TFTP_PATH_LEN bytes
  */
 int pxe_setup_ctx(struct pxe_context *ctx, struct cmd_tbl *cmdtp,
                  pxe_getfile_func getfile, void *userdata,