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Diffstat (limited to 'lib/libz/inffast.c')
-rw-r--r--lib/libz/inffast.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/lib/libz/inffast.c b/lib/libz/inffast.c
index 61a78ee933fcd..3c6ff06f6c250 100644
--- a/lib/libz/inffast.c
+++ b/lib/libz/inffast.c
@@ -13,12 +13,14 @@
struct inflate_codes_state {int dummy;}; /* for buggy compilers */
/* simplify the use of the inflate_huft type with some defines */
+#define base more.Base
+#define next more.Next
#define exop word.what.Exop
#define bits word.what.Bits
/* macros for bit input with no checking and for returning unused bytes */
#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<<k;k+=8;}}
-#define UNGRAB {c=z->avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;}
+#define UNGRAB {n+=(c=k>>3);p-=c;k&=7;}
/* Called with number of bytes left to write in window at least 258
(the maximum string length) and number of input bytes available
@@ -118,10 +120,7 @@ z_streamp z;
break;
}
else if ((e & 64) == 0)
- {
- t += t->base;
- e = (t += ((uInt)b & inflate_mask[e]))->exop;
- }
+ e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop;
else
{
z->msg = (char*)"invalid distance code";
@@ -134,8 +133,7 @@ z_streamp z;
}
if ((e & 64) == 0)
{
- t += t->base;
- if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0)
+ if ((e = (t = t->next + ((uInt)b & inflate_mask[e]))->exop) == 0)
{
DUMPBITS(t->bits)
Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?