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44 lines
1.4 KiB
44 lines
1.4 KiB
2 years ago
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--- sa_common.c
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+++ sa_common.c
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@@ -1249,6 +1249,11 @@
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/* Remap [unsigned] long fields */
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d = gtypes_nr[0] - ftypes_nr[0];
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if (d) {
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+
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+ if (ftypes_nr[0] * ULL_ALIGNMENT_WIDTH < ftypes_nr[0])
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+ /* Overflow */
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+ return;
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+
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memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH,
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((char *) ps) + ftypes_nr[0] * ULL_ALIGNMENT_WIDTH,
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st_size - ftypes_nr[0] * ULL_ALIGNMENT_WIDTH);
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@@ -1260,7 +1265,13 @@
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/* Remap [unsigned] int fields */
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d = gtypes_nr[1] - ftypes_nr[1];
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if (d) {
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- memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
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+
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+ if (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
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+ ftypes_nr[1] * UL_ALIGNMENT_WIDTH < ftypes_nr[1])
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+ /* Overflow */
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+ return;
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+
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+ memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
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+ gtypes_nr[1] * UL_ALIGNMENT_WIDTH,
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((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
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+ ftypes_nr[1] * UL_ALIGNMENT_WIDTH,
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@@ -1275,6 +1286,13 @@
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/* Remap possible fields (like strings of chars) following int fields */
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d = gtypes_nr[2] - ftypes_nr[2];
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if (d) {
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+
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+ if (gtypes_nr[0] * ULL_ALIGNMENT_WIDTH +
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+ gtypes_nr[1] * UL_ALIGNMENT_WIDTH +
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+ ftypes_nr[2] * U_ALIGNMENT_WIDTH < ftypes_nr[2])
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+ /* Overflow */
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+ return;
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+
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memmove(((char *) ps) + gtypes_nr[0] * ULL_ALIGNMENT_WIDTH
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+ gtypes_nr[1] * UL_ALIGNMENT_WIDTH
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+ gtypes_nr[2] * U_ALIGNMENT_WIDTH,
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