diff options
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/fat_write.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index 4f1772f..3542b0b 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -323,7 +323,7 @@ static void fill_dir_slot(fsdata *mydata, dir_entry **dentptr, const char *l_name) { dir_slot *slotptr = (dir_slot *)get_vfatname_block; - __u8 counter, checksum; + __u8 counter = 0, checksum; int idx = 0, ret; char s_name[16]; @@ -926,6 +926,7 @@ static int do_fat_write(const char *filename, void *buffer, int cursect; int root_cluster, ret = -1, name_len; char l_filename[VFAT_MAXLEN_BYTES]; + int write_size = size; dir_curclust = 0; @@ -985,7 +986,11 @@ static int do_fat_write(const char *filename, void *buffer, dentptr = (dir_entry *) do_fat_read_block; name_len = strlen(filename); + if (name_len >= VFAT_MAXLEN_BYTES) + name_len = VFAT_MAXLEN_BYTES - 1; + memcpy(l_filename, filename, name_len); + l_filename[name_len] = 0; /* terminate the string */ downcase(l_filename); startsect = mydata->rootdir_sect; @@ -1012,10 +1017,12 @@ static int do_fat_write(const char *filename, void *buffer, } ret = set_contents(mydata, retdent, buffer, size); - if (ret) { + if (ret < 0) { printf("Error: writing contents\n"); goto exit; } + write_size = ret; + debug("attempt to write 0x%x bytes\n", write_size); /* Flush fat buffer */ ret = flush_fat_buffer(mydata); @@ -1029,7 +1036,7 @@ static int do_fat_write(const char *filename, void *buffer, get_dentfromdir_block, mydata->clust_size * mydata->sect_size); if (ret) { - printf("Error: wrinting directory entry\n"); + printf("Error: writing directory entry\n"); goto exit; } } else { @@ -1056,10 +1063,12 @@ static int do_fat_write(const char *filename, void *buffer, start_cluster, size, 0x20); ret = set_contents(mydata, empty_dentptr, buffer, size); - if (ret) { + if (ret < 0) { printf("Error: writing contents\n"); goto exit; } + write_size = ret; + debug("attempt to write 0x%x bytes\n", write_size); /* Flush fat buffer */ ret = flush_fat_buffer(mydata); @@ -1080,7 +1089,7 @@ static int do_fat_write(const char *filename, void *buffer, exit: free(mydata->fatbuf); - return ret; + return ret < 0 ? ret : write_size; } int file_fat_write(const char *filename, void *buffer, unsigned long maxsize) |