diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fat/fat.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index 29cae8d..2a5300d 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -301,10 +301,20 @@ get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size) return 0; } -/* +/** + * get_contents() - read from file + * * Read at most 'maxsize' bytes from 'pos' in the file associated with 'dentptr' - * into 'buffer'. - * Update the number of bytes read in *gotsize or return -1 on fatal errors. + * into 'buffer'. Update the number of bytes read in *gotsize or return -1 on + * fatal errors. + * + * @mydata: file system description + * @dentprt: directory entry pointer + * @pos: position from where to read + * @buffer: buffer into which to read + * @maxsize: maximum number of bytes to read + * @gotsize: number of bytes actually read + * Return: -1 on error, otherwise 0 */ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, __u8 *buffer, loff_t maxsize, loff_t *gotsize) @@ -335,8 +345,8 @@ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, curclust = get_fatent(mydata, curclust); if (CHECK_CLUST(curclust, mydata->fatsize)) { debug("curclust: 0x%x\n", curclust); - debug("Invalid FAT entry\n"); - return 0; + printf("Invalid FAT entry\n"); + return -1; } actsize += bytesperclust; } @@ -374,8 +384,8 @@ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, curclust = get_fatent(mydata, curclust); if (CHECK_CLUST(curclust, mydata->fatsize)) { debug("curclust: 0x%x\n", curclust); - debug("Invalid FAT entry\n"); - return 0; + printf("Invalid FAT entry\n"); + return -1; } } @@ -390,8 +400,8 @@ static int get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos, goto getit; if (CHECK_CLUST(newclust, mydata->fatsize)) { debug("curclust: 0x%x\n", newclust); - debug("Invalid FAT entry\n"); - return 0; + printf("Invalid FAT entry\n"); + return -1; } endclust = newclust; actsize += bytesperclust; @@ -418,7 +428,7 @@ getit: if (CHECK_CLUST(curclust, mydata->fatsize)) { debug("curclust: 0x%x\n", curclust); printf("Invalid FAT entry\n"); - return 0; + return -1; } actsize = bytesperclust; endclust = curclust; |