diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/common/io_stdin.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/lib/common/io_stdin.c b/lib/common/io_stdin.c index 469e300..4694989 100644 --- a/lib/common/io_stdin.c +++ b/lib/common/io_stdin.c @@ -16,7 +16,8 @@ typedef struct { const sparse_map_t *map; sqfs_u64 offset; - sqfs_u64 size; + sqfs_u64 real_size; + sqfs_u64 apparent_size; FILE *fp; } sqfs_file_stdinout_t; @@ -28,7 +29,7 @@ static void stdinout_destroy(sqfs_object_t *base) static sqfs_u64 stdinout_get_size(const sqfs_file_t *base) { - return ((const sqfs_file_stdinout_t *)base)->size; + return ((const sqfs_file_stdinout_t *)base)->apparent_size; } static int stdinout_truncate(sqfs_file_t *base, sqfs_u64 size) @@ -54,7 +55,7 @@ static int stdin_read_at(sqfs_file_t *base, sqfs_u64 offset, temp = alloca(temp_size); } - if (offset >= file->size || (offset + size) > file->size) + if (offset >= file->real_size || (offset + size) > file->real_size) return SQFS_ERROR_OUT_OF_BOUNDS; while (size > 0) { @@ -151,14 +152,22 @@ sqfs_file_t *sqfs_get_stdin_file(FILE *fp, const sparse_map_t *map, { sqfs_file_stdinout_t *file = calloc(1, sizeof(*file)); sqfs_file_t *base = (sqfs_file_t *)file; + const sparse_map_t *it; if (file == NULL) return NULL; - file->size = size; + file->apparent_size = size; file->map = map; file->fp = fp; + if (map != NULL) { + for (it = map; it != NULL; it = it->next) + file->real_size += map->count; + } else { + file->real_size = size; + } + ((sqfs_object_t *)base)->destroy = stdinout_destroy; base->write_at = stdin_write_at; base->get_size = stdinout_get_size; |