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fs: fat: usage basename in file_fat_write_at, fat_mkdir

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This patch involves no functional change. It is just about code
readability.

Both in file_fat_write_at() and fat_mkdir() the incoming file or directory
path are split into two parts: the parent directory and the base name.

In file_fat_write_at() the value of the variable basename is assigned to
the filename parameter and afterwards the variable filename is used instead
of basename. It is more readable to use the variable basename and leave
filename unchanged.

In fat_mkdir() the base name variable is called directory. This is
confusing. Call it basename like in file_fat_write_at(). This allows to
rename parameter new_directory to directory in the implementation of
fat_mkdir() to match the function declaration.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2021-01-30 10:01:08 +01:00
parent fdcb93e170
commit 4c4006b694
1 changed files with 13 additions and 14 deletions
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27
fs/fat/fat_write.c
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@ -1299,9 +1299,8 @@ int file_fat_write_at(const char *filename, loff_t pos, void *buffer,
goto exit; goto exit;
} }
filename = basename; if (normalize_longname(l_filename, basename)) {
if (normalize_longname(l_filename, filename)) { printf("FAT: illegal filename (%s)\n", basename);
printf("FAT: illegal filename (%s)\n", filename);
ret = -EINVAL; ret = -EINVAL;
goto exit; goto exit;
} }
@ -1365,7 +1364,7 @@ int file_fat_write_at(const char *filename, loff_t pos, void *buffer,
} }
/* Check if long name is needed */ /* Check if long name is needed */
ndent = set_name(itr, filename, shortname); ndent = set_name(itr, basename, shortname);
if (ndent < 0) { if (ndent < 0) {
ret = ndent; ret = ndent;
goto exit; goto exit;
@ -1375,7 +1374,7 @@ int file_fat_write_at(const char *filename, loff_t pos, void *buffer,
goto exit; goto exit;
if (ndent > 1) { if (ndent > 1) {
/* Set long name entries */ /* Set long name entries */
ret = fill_dir_slot(itr, filename, shortname); ret = fill_dir_slot(itr, basename, shortname);
if (ret) if (ret)
goto exit; goto exit;
} }
@ -1611,31 +1610,31 @@ exit:
return ret; return ret;
} }
int fat_mkdir(const char *new_dirname) int fat_mkdir(const char *dirname)
{ {
dir_entry *retdent; dir_entry *retdent;
fsdata datablock = { .fatbuf = NULL, }; fsdata datablock = { .fatbuf = NULL, };
fsdata *mydata = &datablock; fsdata *mydata = &datablock;
fat_itr *itr = NULL; fat_itr *itr = NULL;
char *dirname_copy, *parent, *dirname; char *dirname_copy, *parent, *basename;
char l_dirname[VFAT_MAXLEN_BYTES]; char l_dirname[VFAT_MAXLEN_BYTES];
int ret = -1; int ret = -1;
loff_t actwrite; loff_t actwrite;
unsigned int bytesperclust; unsigned int bytesperclust;
dir_entry *dotdent = NULL; dir_entry *dotdent = NULL;
dirname_copy = strdup(new_dirname); dirname_copy = strdup(dirname);
if (!dirname_copy) if (!dirname_copy)
goto exit; goto exit;
split_filename(dirname_copy, &parent, &dirname); split_filename(dirname_copy, &parent, &basename);
if (!strlen(dirname)) { if (!strlen(basename)) {
ret = -EINVAL; ret = -EINVAL;
goto exit; goto exit;
} }
if (normalize_longname(l_dirname, dirname)) { if (normalize_longname(l_dirname, basename)) {
printf("FAT: illegal filename (%s)\n", dirname); printf("FAT: illegal filename (%s)\n", basename);
ret = -EINVAL; ret = -EINVAL;
goto exit; goto exit;
} }
@ -1678,7 +1677,7 @@ int fat_mkdir(const char *new_dirname)
} }
/* Check if long name is needed */ /* Check if long name is needed */
ndent = set_name(itr, dirname, shortname); ndent = set_name(itr, basename, shortname);
if (ndent < 0) { if (ndent < 0) {
ret = ndent; ret = ndent;
goto exit; goto exit;
@ -1688,7 +1687,7 @@ int fat_mkdir(const char *new_dirname)
goto exit; goto exit;
if (ndent > 1) { if (ndent > 1) {
/* Set long name entries */ /* Set long name entries */
ret = fill_dir_slot(itr, dirname, shortname); ret = fill_dir_slot(itr, basename, shortname);
if (ret) if (ret)
goto exit; goto exit;
} }