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Commit f7bb70ab authored by Jörn Engel's avatar Jörn Engel Committed by Linus Torvalds
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[PATCH] zlib cleanup: Z_NULL removal 

s/Z_NULL/NULL/g.
parent 74030092
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Showing with 52 additions and 54 deletions
include/linux/zlib.h
View file @ f7bb70ab
......@@ -91,7 +91,7 @@ typedef z_stream *z_streamp;
memory management. The compression library attaches no meaning to the
opaque value.
zalloc must return Z_NULL if there is not enough memory for the object.
zalloc must return NULL if there is not enough memory for the object.
If zlib is used in a multi-threaded application, zalloc and zfree must be
thread safe.
......@@ -153,8 +153,6 @@ typedef z_stream *z_streamp;
#define Z_DEFLATED 8
/* The deflate compression method (the only one supported in this version) */
#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */
/* basic functions */
extern const char * zlib_zlibVersion (void);
......@@ -176,7 +174,7 @@ extern int deflateInit (z_streamp strm, int level);
Initializes the internal stream state for compression. The fields
zalloc, zfree and opaque must be initialized before by the caller.
If zalloc and zfree are set to Z_NULL, deflateInit updates them to
If zalloc and zfree are set to NULL, deflateInit updates them to
use default allocation functions.
The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
......@@ -298,11 +296,11 @@ extern int zlib_inflateInit (z_streamp strm);
Initializes the internal stream state for decompression. The fields
next_in, avail_in, and workspace must be initialized before by
the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
the caller. If next_in is not NULL and avail_in is large enough (the exact
value depends on the compression method), inflateInit determines the
compression method from the zlib header and allocates all data structures
accordingly; otherwise the allocation will be deferred to the first call of
inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to
inflate. If zalloc and zfree are set to NULL, inflateInit updates them to
use default allocation functions.
inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
......
include/linux/zutil.h
View file @ f7bb70ab
......@@ -81,7 +81,7 @@ typedef uLong (*check_func) (uLong check, const Byte *buf,
An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
much faster. Usage example:
uLong adler = adler32(0L, Z_NULL, 0);
uLong adler = adler32(0L, NULL, 0);
while (read_buffer(buffer, length) != EOF) {
adler = adler32(adler, buffer, length);
......@@ -96,7 +96,7 @@ static inline uLong zlib_adler32(uLong adler,
unsigned long s2 = (adler >> 16) & 0xffff;
int k;
if (buf == Z_NULL) return 1L;
if (buf == NULL) return 1L;
while (len > 0) {
k = len < NMAX ? len : NMAX;
......
lib/zlib_deflate/deflate.c
View file @ f7bb70ab
......@@ -199,13 +199,13 @@ int zlib_deflateInit2_(
* output size for (length,distance) codes is <= 24 bits.
*/
if (version == Z_NULL || version[0] != my_version[0] ||
if (version == NULL || version[0] != my_version[0] ||
stream_size != sizeof(z_stream)) {
return Z_VERSION_ERROR;
}
if (strm == Z_NULL) return Z_STREAM_ERROR;
if (strm == NULL) return Z_STREAM_ERROR;
strm->msg = Z_NULL;
strm->msg = NULL;
if (level == Z_DEFAULT_COMPRESSION) level = 6;
......@@ -266,7 +266,7 @@ int zlib_deflateSetDictionary(
uInt n;
IPos hash_head = 0;
if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL)
if (strm == NULL || strm->state == NULL || dictionary == NULL)
return Z_STREAM_ERROR;
s = (deflate_state *) strm->state;
......@@ -305,11 +305,11 @@ int zlib_deflateReset(
{
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL)
if (strm == NULL || strm->state == NULL)
return Z_STREAM_ERROR;
strm->total_in = strm->total_out = 0;
strm->msg = Z_NULL;
strm->msg = NULL;
strm->data_type = Z_UNKNOWN;
s = (deflate_state *)strm->state;
......@@ -340,7 +340,7 @@ int zlib_deflateParams(
compress_func func;
int err = Z_OK;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
if (strm == NULL || strm->state == NULL) return Z_STREAM_ERROR;
s = (deflate_state *) strm->state;
if (level == Z_DEFAULT_COMPRESSION) {
......@@ -396,7 +396,7 @@ static void flush_pending(
if (len > strm->avail_out) len = strm->avail_out;
if (len == 0) return;
if (strm->next_out != Z_NULL) {
if (strm->next_out != NULL) {
memcpy(strm->next_out, s->pending_out, len);
strm->next_out += len;
}
......@@ -418,13 +418,13 @@ int zlib_deflate(
int old_flush; /* value of flush param for previous deflate call */
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL ||
if (strm == NULL || strm->state == NULL ||
flush > Z_FINISH || flush < 0) {
return Z_STREAM_ERROR;
}
s = (deflate_state *) strm->state;
if ((strm->next_in == Z_NULL && strm->avail_in != 0) ||
if ((strm->next_in == NULL && strm->avail_in != 0) ||
(s->status == FINISH_STATE && flush != Z_FINISH)) {
return Z_STREAM_ERROR;
}
......@@ -555,7 +555,7 @@ int zlib_deflateEnd(
int status;
deflate_state *s;
if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
if (strm == NULL || strm->state == NULL) return Z_STREAM_ERROR;
s = (deflate_state *) strm->state;
status = s->status;
......@@ -564,7 +564,7 @@ int zlib_deflateEnd(
return Z_STREAM_ERROR;
}
strm->state = Z_NULL;
strm->state = NULL;
return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
}
......@@ -586,7 +586,7 @@ int zlib_deflateCopy (
deflate_workspace *mem;
if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) {
if (source == NULL || dest == NULL || source->state == NULL) {
return Z_STREAM_ERROR;
}
......@@ -968,7 +968,7 @@ static void fill_window(s)
#define FLUSH_BLOCK_ONLY(s, eof) { \
zlib_tr_flush_block(s, (s->block_start >= 0L ? \
(char *)&s->window[(unsigned)s->block_start] : \
(char *)Z_NULL), \
(char *)NULL), \
(ulg)((long)s->strstart - s->block_start), \
(eof)); \
s->block_start = s->strstart; \
......
lib/zlib_inflate/infblock.c
View file @ f7bb70ab
......@@ -71,7 +71,7 @@ void zlib_inflate_blocks_reset(
uLong *c
)
{
if (c != Z_NULL)
if (c != NULL)
*c = s->check;
if (s->mode == CODES)
zlib_inflate_codes_free(s->sub.decode.codes, z);
......@@ -79,8 +79,8 @@ void zlib_inflate_blocks_reset(
s->bitk = 0;
s->bitb = 0;
s->read = s->write = s->window;
if (s->checkfn != Z_NULL)
z->adler = s->check = (*s->checkfn)(0L, (const Byte *)Z_NULL, 0);
if (s->checkfn != NULL)
z->adler = s->check = (*s->checkfn)(0L, (const Byte *)NULL, 0);
}
inflate_blocks_statef *zlib_inflate_blocks_new(
......@@ -97,7 +97,7 @@ inflate_blocks_statef *zlib_inflate_blocks_new(
s->end = s->window + w;
s->checkfn = c;
s->mode = TYPE;
zlib_inflate_blocks_reset(s, z, Z_NULL);
zlib_inflate_blocks_reset(s, z, NULL);
return s;
}
......@@ -141,7 +141,7 @@ int zlib_inflate_blocks(
zlib_inflate_trees_fixed(&bl, &bd, &tl, &td, z);
s->sub.decode.codes = zlib_inflate_codes_new(bl, bd, tl, td, z);
if (s->sub.decode.codes == Z_NULL)
if (s->sub.decode.codes == NULL)
{
r = Z_MEM_ERROR;
LEAVE
......@@ -270,7 +270,7 @@ int zlib_inflate_blocks(
s->sub.trees.index = i;
}
}
s->sub.trees.tb = Z_NULL;
s->sub.trees.tb = NULL;
{
uInt bl, bd;
inflate_huft *tl, *td;
......@@ -289,7 +289,7 @@ int zlib_inflate_blocks(
r = t;
LEAVE
}
if ((c = zlib_inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
if ((c = zlib_inflate_codes_new(bl, bd, tl, td, z)) == NULL)
{
r = Z_MEM_ERROR;
LEAVE
......@@ -333,7 +333,7 @@ int zlib_inflate_blocks_free(
z_streamp z
)
{
zlib_inflate_blocks_reset(s, z, Z_NULL);
zlib_inflate_blocks_reset(s, z, NULL);
return Z_OK;
}
......@@ -351,7 +351,7 @@ void zlib_inflate_set_dictionary(
/* Returns true if inflate is currently at the end of a block generated
* by Z_SYNC_FLUSH or Z_FULL_FLUSH.
* IN assertion: s != Z_NULL
* IN assertion: s != NULL
*/
int zlib_inflate_blocks_sync_point(
inflate_blocks_statef *s
......
lib/zlib_inflate/inflate.c
View file @ f7bb70ab
......@@ -18,12 +18,12 @@ int zlib_inflateReset(
z_streamp z
)
{
if (z == Z_NULL || z->state == Z_NULL || z->workspace == Z_NULL)
if (z == NULL || z->state == NULL || z->workspace == NULL)
return Z_STREAM_ERROR;
z->total_in = z->total_out = 0;
z->msg = Z_NULL;
z->msg = NULL;
z->state->mode = z->state->nowrap ? BLOCKS : METHOD;
zlib_inflate_blocks_reset(z->state->blocks, z, Z_NULL);
zlib_inflate_blocks_reset(z->state->blocks, z, NULL);
return Z_OK;
}
......@@ -32,11 +32,11 @@ int zlib_inflateEnd(
z_streamp z
)
{
if (z == Z_NULL || z->state == Z_NULL || z->workspace == Z_NULL)
if (z == NULL || z->state == NULL || z->workspace == NULL)
return Z_STREAM_ERROR;
if (z->state->blocks != Z_NULL)
if (z->state->blocks != NULL)
zlib_inflate_blocks_free(z->state->blocks, z);
z->state = Z_NULL;
z->state = NULL;
return Z_OK;
}
......@@ -48,16 +48,16 @@ int zlib_inflateInit2_(
int stream_size
)
{
if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
stream_size != sizeof(z_stream) || z->workspace == Z_NULL)
if (version == NULL || version[0] != ZLIB_VERSION[0] ||
stream_size != sizeof(z_stream) || z->workspace == NULL)
return Z_VERSION_ERROR;
/* initialize state */
if (z == Z_NULL)
if (z == NULL)
return Z_STREAM_ERROR;
z->msg = Z_NULL;
z->msg = NULL;
z->state = &WS(z)->internal_state;
z->state->blocks = Z_NULL;
z->state->blocks = NULL;
/* handle undocumented nowrap option (no zlib header or check) */
z->state->nowrap = 0;
......@@ -77,8 +77,8 @@ int zlib_inflateInit2_(
/* create inflate_blocks state */
if ((z->state->blocks =
zlib_inflate_blocks_new(z, z->state->nowrap ? Z_NULL : zlib_adler32, (uInt)1 << w))
== Z_NULL)
zlib_inflate_blocks_new(z, z->state->nowrap ? NULL : zlib_adler32, (uInt)1 << w))
== NULL)
{
zlib_inflateEnd(z);
return Z_MEM_ERROR;
......@@ -125,7 +125,7 @@ int zlib_inflate(
int r, trv;
uInt b;
if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL)
if (z == NULL || z->state == NULL || z->next_in == NULL)
return Z_STREAM_ERROR;
trv = f == Z_FINISH ? Z_BUF_ERROR : Z_OK;
r = Z_BUF_ERROR;
......@@ -260,7 +260,7 @@ int zlib_inflateSync(
uLong r, w; /* temporaries to save total_in and total_out */
/* set up */
if (z == Z_NULL || z->state == Z_NULL)
if (z == NULL || z->state == NULL)
return Z_STREAM_ERROR;
if (z->state->mode != I_BAD)
{
......@@ -313,7 +313,7 @@ int zlib_inflateSyncPoint(
z_streamp z
)
{
if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL)
if (z == NULL || z->state == NULL || z->state->blocks == NULL)
return Z_STREAM_ERROR;
return zlib_inflate_blocks_sync_point(z->state->blocks);
}
......@@ -352,7 +352,7 @@ static int zlib_inflate_addhistory(inflate_blocks_statef *s,
/* is there room until end of buffer? */
if (t > m) t = m;
/* update check information */
if (s->checkfn != Z_NULL)
if (s->checkfn != NULL)
s->check = (*s->checkfn)(s->check, q, t);
memcpy(q, p, t);
q += t;
......
lib/zlib_inflate/inftrees.c
View file @ f7bb70ab
......@@ -139,7 +139,7 @@ static int huft_build(
} while (--i);
if (c[0] == n) /* null input--all zero length codes */
{
*t = (inflate_huft *)Z_NULL;
*t = (inflate_huft *)NULL;
*m = 0;
return Z_OK;
}
......@@ -193,8 +193,8 @@ static int huft_build(
p = v; /* grab values in bit order */
h = -1; /* no tables yet--level -1 */
w = -l; /* bits decoded == (l * h) */
u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */
q = (inflate_huft *)Z_NULL; /* ditto */
u[0] = (inflate_huft *)NULL; /* just to keep compilers happy */
q = (inflate_huft *)NULL; /* ditto */
z = 0; /* ditto */
/* go through the bit lengths (k already is bits in shortest code) */
......@@ -302,7 +302,7 @@ int zlib_inflate_trees_bits(
uInt *v; /* work area for huft_build */
v = WS(z)->tree_work_area_1;
r = huft_build(c, 19, 19, (uInt*)Z_NULL, (uInt*)Z_NULL,
r = huft_build(c, 19, 19, (uInt*)NULL, (uInt*)NULL,
tb, bb, hp, &hn, v);
if (r == Z_DATA_ERROR)
z->msg = (char*)"oversubscribed dynamic bit lengths tree";
......
lib/zlib_inflate/infutil.c
View file @ f7bb70ab
......@@ -44,7 +44,7 @@ int zlib_inflate_flush(
z->total_out += n;
/* update check information */
if (s->checkfn != Z_NULL)
if (s->checkfn != NULL)
z->adler = s->check = (*s->checkfn)(s->check, q, n);
/* copy as far as end of window */
......@@ -70,7 +70,7 @@ int zlib_inflate_flush(
z->total_out += n;
/* update check information */
if (s->checkfn != Z_NULL)
if (s->checkfn != NULL)
z->adler = s->check = (*s->checkfn)(s->check, q, n);
/* copy */
......
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