From d5068781ec2528f88aaa92fbc9a5b9c256d53499 Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Mon, 6 May 2019 12:09:56 +0200 Subject: Implement reading and writing of compressor options - gensquashfs simply asks the backend compressor to write its options to the file and does accounting - rdsquasfs simply asks the backend compressor to transparentyl snort the options from the file - not implemented in any compressor backend yet Signed-off-by: David Oberhollenzer --- lib/comp/xz.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'lib/comp/xz.c') diff --git a/lib/comp/xz.c b/lib/comp/xz.c index 98d740c..dd608ba 100644 --- a/lib/comp/xz.c +++ b/lib/comp/xz.c @@ -12,6 +12,21 @@ typedef struct { size_t block_size; } xz_compressor_t; +static int xz_write_options(compressor_t *base, int fd) +{ + (void)base; + (void)fd; + return 0; +} + +static int xz_read_options(compressor_t *base, int fd) +{ + (void)base; + (void)fd; + fputs("xz extra options are not yet implemented\n", stderr); + return -1; +} + static ssize_t xz_comp_block(compressor_t *base, const uint8_t *in, size_t size, uint8_t *out, size_t outsize) { @@ -86,5 +101,7 @@ compressor_t *create_xz_compressor(bool compress, size_t block_size) xz->block_size = block_size; base->destroy = xz_destroy; base->do_block = compress ? xz_comp_block : xz_uncomp_block; + base->write_options = xz_write_options; + base->read_options = xz_read_options; return base; } -- cgit v1.2.3