made last fix more robust if run is less than -1
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93d33a555c
@ -1,4 +1,4 @@
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/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_fax3.c,v 1.8 2000-03-17 18:34:39 warmerda Exp $ */
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/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_fax3.c,v 1.9 2000-03-17 20:33:44 warmerda Exp $ */
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/*
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* Copyright (c) 1990-1997 Sam Leffler
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@ -373,7 +373,7 @@ _TIFFFax3fillruns(u_char* buf, uint32* runs, uint32* erun, uint32 lastx)
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x = 0;
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for (; runs < erun; runs += 2) {
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run = runs[0];
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if (x+run > lastx || run == -1 )
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if (x+run > lastx || run > lastx )
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run = runs[0] = (uint16) (lastx - x);
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if (run) {
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cp = buf + (x>>3);
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@ -412,7 +412,7 @@ _TIFFFax3fillruns(u_char* buf, uint32* runs, uint32* erun, uint32 lastx)
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x += runs[0];
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}
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run = runs[1];
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if (x+run > lastx || run == -1 )
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if (x+run > lastx || run > lastx )
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run = runs[1] = lastx - x;
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if (run) {
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cp = buf + (x>>3);
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