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Revert "misc.h: drop LengthRestB() macro" 

This reverts commit a6b2eb3780

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2015>
This commit is contained in:
Alan Coopersmith 2025-06-11 17:05:42 -07:00 committed by Marge Bot
parent cd583932a1
commit c7b69f1acb
3 changed files with 5 additions and 2 deletions
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2
dix/swapreq.c
View File

@ -756,7 +756,7 @@ SProcStoreColors(ClientPtr client)
REQUEST_AT_LEAST_SIZE(xStoreColorsReq);
swapl(&stuff->cmap);
pItem = (xColorItem *) &stuff[1];
for (count = ((client->req_len << 2) - sizeof(xStoreColorsReq)) / sizeof(xColorItem); --count >= 0;)
for (count = LengthRestB(stuff) / sizeof(xColorItem); --count >= 0;)
SwapColorItem(pItem++);
return ((*ProcVector[X_StoreColors]) (client));
}

2
doc/Xserver-spec.xml
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@ -600,7 +600,7 @@ are: REQUEST, REQUEST_SIZE_MATCH, REQUEST_AT_LEAST_SIZE,
REQUEST_FIXED_SIZE, LEGAL_NEW_RESOURCE, and
VALIDATE_DRAWABLE_AND_GC. Useful byte swapping macros can be found
in Xserver/include/dix.h: WriteReplyToClient and WriteSwappedDataToClient; and
in Xserver/include/misc.h: bswap_64, bswap_32, bswap_16, LengthRestS,
in Xserver/include/misc.h: bswap_64, bswap_32, bswap_16, LengthRestB, LengthRestS,
LengthRestL, SwapRestS, SwapRestL, swapl, swaps, cpswapl, and cpswaps.</para>
</section>
</section>

3
include/misc.h
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@ -227,6 +227,9 @@ extern _X_EXPORT char **xstrtokenize(const char *str, const char *separators);
/* some macros to help swap requests, replies, and events */
#define LengthRestB(stuff) \
((client->req_len << 2) - sizeof(*stuff))
#define LengthRestS(stuff) \
((client->req_len << 1) - (sizeof(*stuff) >> 1))