diff options
Diffstat (limited to 'lib/zlib_inflate/inflate.c')
-rw-r--r-- | lib/zlib_inflate/inflate.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/lib/zlib_inflate/inflate.c b/lib/zlib_inflate/inflate.c index 0ad1ebf0094..f5ce87b0800 100644 --- a/lib/zlib_inflate/inflate.c +++ b/lib/zlib_inflate/inflate.c @@ -916,50 +916,3 @@ int zlib_inflateIncomp(z_stream *z) return Z_OK; } - -#include <linux/errno.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> - -/* Utility function: initialize zlib, unpack binary blob, clean up zlib, - * return len or negative error code. */ -int zlib_inflate_blob(void *gunzip_buf, unsigned sz, const void *buf, unsigned len) -{ - const u8 *zbuf = buf; - struct z_stream_s *strm; - int rc; - - rc = -ENOMEM; - strm = kmalloc(sizeof(*strm), GFP_KERNEL); - if (strm == NULL) - goto gunzip_nomem1; - strm->workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL); - if (strm->workspace == NULL) - goto gunzip_nomem2; - - /* gzip header (1f,8b,08... 10 bytes total + possible asciz filename) - * expected to be stripped from input */ - - strm->next_in = zbuf; - strm->avail_in = len; - strm->next_out = gunzip_buf; - strm->avail_out = sz; - - rc = zlib_inflateInit2(strm, -MAX_WBITS); - if (rc == Z_OK) { - rc = zlib_inflate(strm, Z_FINISH); - /* after Z_FINISH, only Z_STREAM_END is "we unpacked it all" */ - if (rc == Z_STREAM_END) - rc = sz - strm->avail_out; - else - rc = -EINVAL; - zlib_inflateEnd(strm); - } else - rc = -EINVAL; - - kfree(strm->workspace); -gunzip_nomem2: - kfree(strm); -gunzip_nomem1: - return rc; /* returns Z_OK (0) if successful */ -} |