Move library source into src sub-directory

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 88 insertions, 0 deletions

diff --git a/lib/common/src/compress.c b/lib/common/src/compress.c
new file mode 100644
index 0000000..1e0ca06
--- /dev/null
+++ b/lib/common/src/compress.c
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * compress.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+#include "compress_cli.h"
+
+#include <assert.h>
+#include <stdio.h>
+
+static int cmp_ids[] = {
+	SQFS_COMP_XZ,
+	SQFS_COMP_ZSTD,
+	SQFS_COMP_GZIP,
+	SQFS_COMP_LZ4,
+	SQFS_COMP_LZO,
+};
+
+SQFS_COMPRESSOR compressor_get_default(void)
+{
+	sqfs_compressor_config_t cfg;
+	sqfs_compressor_t *temp;
+	size_t i;
+	int ret;
+
+	for (i = 0; i < sizeof(cmp_ids) / sizeof(cmp_ids[0]); ++i) {
+		sqfs_compressor_config_init(&cfg, cmp_ids[i],
+					    SQFS_DEFAULT_BLOCK_SIZE, 0);
+
+		ret = sqfs_compressor_create(&cfg, &temp);
+
+		if (ret == 0) {
+			sqfs_drop(temp);
+			return cmp_ids[i];
+		}
+	}
+
+#ifdef WITH_LZO
+	return SQFS_COMP_LZO;
+#else
+	assert(0);
+#endif
+}
+
+void compressor_print_available(void)
+{
+	sqfs_compressor_config_t cfg;
+	sqfs_compressor_t *temp;
+	bool have_compressor;
+	int i, ret, defcomp;
+	const char *name;
+
+	defcomp = compressor_get_default();
+
+	fputs("Available SquashFS block compressors:\n", stdout);
+
+	for (i = SQFS_COMP_MIN; i <= SQFS_COMP_MAX; ++i) {
+		sqfs_compressor_config_init(&cfg, i,
+					    SQFS_DEFAULT_BLOCK_SIZE, 0);
+
+		ret = sqfs_compressor_create(&cfg, &temp);
+		have_compressor = false;
+
+		if (ret == 0) {
+			sqfs_drop(temp);
+			have_compressor = true;
+		} else {
+#ifdef WITH_LZO
+			if (i == SQFS_COMP_LZO)
+				have_compressor = true;
+#endif
+		}
+
+		if (have_compressor) {
+			name = sqfs_compressor_name_from_id(i);
+
+			if (defcomp == i) {
+				printf("\t%s (default)\n", name);
+			} else {
+				printf("\t%s\n", name);
+			}
+		}
+	}
+
+	fputc('\n', stdout);
+}