diff options
Diffstat (limited to 'include/linux/lzo.h')
| -rw-r--r-- | include/linux/lzo.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/lzo.h b/include/linux/lzo.h index a0848d9377e5..4d30e3624acd 100644 --- a/include/linux/lzo.h +++ b/include/linux/lzo.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __LZO_H__ #define __LZO_H__ /* @@ -17,12 +18,24 @@ #define LZO1X_1_MEM_COMPRESS (8192 * sizeof(unsigned short)) #define LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS -#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3) +#define lzo1x_worst_compress(x) ((x) + ((x) / 16) + 64 + 3 + 2) /* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */ int lzo1x_1_compress(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len, void *wrkmem); +/* Same as above but does not write more than dst_len to dst. */ +int lzo1x_1_compress_safe(const unsigned char *src, size_t src_len, + unsigned char *dst, size_t *dst_len, void *wrkmem); + +/* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */ +int lzorle1x_1_compress(const unsigned char *src, size_t src_len, + unsigned char *dst, size_t *dst_len, void *wrkmem); + +/* Same as above but does not write more than dst_len to dst. */ +int lzorle1x_1_compress_safe(const unsigned char *src, size_t src_len, + unsigned char *dst, size_t *dst_len, void *wrkmem); + /* safe decompression with overrun testing */ int lzo1x_decompress_safe(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len); |