diff options
| author | Stephen Warren <swarren@nvidia.com> | 2014-02-03 13:21:00 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-02-19 09:47:33 -0500 |
| commit | 6152916a95af299e5b3061bbd43418e2b73295d0 (patch) | |
| tree | 0d3d5765d342e98e7fff104168144f1050bf16c5 /include/fs.h | |
| parent | bd6fb31fab1523ecac1aaf7af574868a26169dc6 (diff) | |
fs: implement infrastructure for an 'exists' function
This could be used in scripts such as:
if test -e mmc 0:1 /boot/boot.scr; then
load mmc 0:1 ${scriptaddr} /boot/boot.scr
source ${scriptaddr}
fi
rather than:
if load mmc 0:1 ${scriptaddr} /boot/boot.scr; then
source ${scriptaddr}
fi
This prevents errors being printed by attempts to load non-existent
files, which can be important when checking for a large set of files,
such as /boot/boot.scr.uimg, /boot/boot.scr, /boot/extlinux.conf,
/boot.scr.uimg, /boot.scr, /extlinux.conf.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/fs.h')
| -rw-r--r-- | include/fs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/fs.h b/include/fs.h index 97b0094e954..26de0539f7d 100644 --- a/include/fs.h +++ b/include/fs.h @@ -44,6 +44,13 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype); int fs_ls(const char *dirname); /* + * Determine whether a file exists + * + * Returns 1 if the file exists, 0 if it doesn't exist. + */ +int fs_exists(const char *filename); + +/* * Read file "filename" from the partition previously set by fs_set_blk_dev(), * to address "addr", starting at byte offset "offset", and reading "len" * bytes. "offset" may be 0 to read from the start of the file. "len" may be @@ -72,6 +79,8 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype); int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype); +int file_exists(const char *dev_type, const char *dev_part, const char *file, + int fstype); int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype); |