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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2020-03-05 22:38:15 +0100
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2020-03-05 22:41:04 +0100
commit85e36aab1258d8d9ec7b61ce013f167ef8e03ae0 (patch)
treeb1d59cce7894520b53c6b1fa86666d91587aaf82 /extras/list_files.c
parent5acb22a6a7168f8b961777482f39a125158def50 (diff)
Change the signature of sqfs_compressor_create to return an error code
Make sure the function has a way of telling the caller *why* it failed. This way, the function can convey whether it had an internal error, an allocation failure, whether the arguments are totaly nonsensical, or simply that the compressor *or specific configuration* is not supported. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'extras/list_files.c')
-rw-r--r--extras/list_files.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/extras/list_files.c b/extras/list_files.c
index 5e181f2..eba4fff 100644
--- a/extras/list_files.c
+++ b/extras/list_files.c
@@ -47,6 +47,7 @@ static void write_tree_dfs(const sqfs_tree_node_t *n)
int main(int argc, char **argv)
{
+ int ret, status = EXIT_FAILURE;
sqfs_compressor_config_t cfg;
sqfs_compressor_t *cmp;
sqfs_tree_node_t *root = NULL;
@@ -54,7 +55,6 @@ int main(int argc, char **argv)
sqfs_dir_reader_t *dr;
sqfs_file_t *file;
sqfs_super_t super;
- int status = EXIT_FAILURE;
/* open the SquashFS file we want to read */
if (argc != 2) {
@@ -84,9 +84,10 @@ int main(int argc, char **argv)
super.block_size,
SQFS_COMP_FLAG_UNCOMPRESS);
- cmp = sqfs_compressor_create(&cfg);
- if (cmp == NULL) {
- fprintf(stderr, "%s: error creating compressor.\n", argv[1]);
+ ret = sqfs_compressor_create(&cfg, &cmp);
+ if (ret != 0) {
+ fprintf(stderr, "%s: error creating compressor: %d.\n",
+ argv[1], ret);
goto out_fd;
}