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authorStephen Warren <swarren@nvidia.com>2014-02-03 13:21:00 -0700
committerTom Rini <trini@ti.com>2014-02-19 09:47:33 -0500
commit6152916a95af299e5b3061bbd43418e2b73295d0 (patch)
tree0d3d5765d342e98e7fff104168144f1050bf16c5 /include/fs.h
parentbd6fb31fab1523ecac1aaf7af574868a26169dc6 (diff)
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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.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/fs.h b/include/fs.h
index 97b0094..26de053 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);