diff options
Diffstat (limited to 'zlib.c')
| -rw-r--r-- | zlib.c | 36 |
1 files changed, 29 insertions, 7 deletions
@@ -159,6 +159,7 @@ void git_deflate_init(git_zstream *strm, int level) { int status; + memset(strm, 0, sizeof(*strm)); zlib_pre_call(strm); status = deflateInit(&strm->z, level); zlib_post_call(strm); @@ -168,15 +169,11 @@ void git_deflate_init(git_zstream *strm, int level) strm->z.msg ? strm->z.msg : "no message"); } -void git_deflate_init_gzip(git_zstream *strm, int level) +static void do_git_deflate_init(git_zstream *strm, int level, int windowBits) { - /* - * Use default 15 bits, +16 is to generate gzip header/trailer - * instead of the zlib wrapper. - */ - const int windowBits = 15 + 16; int status; + memset(strm, 0, sizeof(*strm)); zlib_pre_call(strm); status = deflateInit2(&strm->z, level, Z_DEFLATED, windowBits, @@ -188,13 +185,38 @@ void git_deflate_init_gzip(git_zstream *strm, int level) strm->z.msg ? strm->z.msg : "no message"); } -void git_deflate_end(git_zstream *strm) +void git_deflate_init_gzip(git_zstream *strm, int level) +{ + /* + * Use default 15 bits, +16 is to generate gzip header/trailer + * instead of the zlib wrapper. + */ + do_git_deflate_init(strm, level, 15 + 16); +} + +void git_deflate_init_raw(git_zstream *strm, int level) +{ + /* + * Use default 15 bits, negate the value to get raw compressed + * data without zlib header and trailer. + */ + do_git_deflate_init(strm, level, -15); +} + +int git_deflate_abort(git_zstream *strm) { int status; zlib_pre_call(strm); status = deflateEnd(&strm->z); zlib_post_call(strm); + return status; +} + +void git_deflate_end(git_zstream *strm) +{ + int status = git_deflate_abort(strm); + if (status == Z_OK) return; error("deflateEnd: %s (%s)", zerr_to_string(status), |