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Overview
| Comment: | Avoid using a zero-sized array within a struct in fts3 code. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | b05cae36cedd98d59813e637f328a52e |
| User & Date: | dan 2015-05-26 17:29:48 |
Context
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2015-05-26
| ||
| 17:33 | Add a cast to one side of the test added by [97806a78] in order to avoid a signed/unsigned comparison warning. check-in: 5b46d2a7 user: dan tags: trunk | |
| 17:29 | Avoid using a zero-sized array within a struct in fts3 code. check-in: b05cae36 user: dan tags: trunk | |
| 16:12 | Fix another bug in the in-memory VFS for fuzzcheck. check-in: 16878a31 user: drh tags: trunk | |
Changes
Changes to ext/fts3/fts3_snippet.c.
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** for details.
*/
struct MatchinfoBuffer {
u8 aRef[3];
int nElem;
int bGlobal; /* Set if global data is loaded */
char *zMatchinfo;
u32 aMatchinfo[0];
};
/*
** The snippet() and offsets() functions both return text values. An instance
** of the following structure is used to accumulate those values while the
** functions are running. See fts3StringAppend() for details.
................................................................................
*/
/*
** Allocate a two-slot MatchinfoBuffer object.
*/
static MatchinfoBuffer *fts3MIBufferNew(int nElem, const char *zMatchinfo){
MatchinfoBuffer *pRet;
int nByte = sizeof(u32) * (2*nElem + 2) + sizeof(MatchinfoBuffer);
int nStr = (int)strlen(zMatchinfo);
pRet = sqlite3_malloc(nByte + nStr+1);
if( pRet ){
memset(pRet, 0, nByte);
pRet->aMatchinfo[0] = (u8*)(&pRet->aMatchinfo[1]) - (u8*)pRet;
pRet->aMatchinfo[1+nElem] = pRet->aMatchinfo[0] + sizeof(u32)*(nElem+1);
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** for details.
*/
struct MatchinfoBuffer {
u8 aRef[3];
int nElem;
int bGlobal; /* Set if global data is loaded */
char *zMatchinfo;
u32 aMatchinfo[1];
};
/*
** The snippet() and offsets() functions both return text values. An instance
** of the following structure is used to accumulate those values while the
** functions are running. See fts3StringAppend() for details.
................................................................................
*/
/*
** Allocate a two-slot MatchinfoBuffer object.
*/
static MatchinfoBuffer *fts3MIBufferNew(int nElem, const char *zMatchinfo){
MatchinfoBuffer *pRet;
int nByte = sizeof(u32) * (2*nElem + 1) + sizeof(MatchinfoBuffer);
int nStr = (int)strlen(zMatchinfo);
pRet = sqlite3_malloc(nByte + nStr+1);
if( pRet ){
memset(pRet, 0, nByte);
pRet->aMatchinfo[0] = (u8*)(&pRet->aMatchinfo[1]) - (u8*)pRet;
pRet->aMatchinfo[1+nElem] = pRet->aMatchinfo[0] + sizeof(u32)*(nElem+1);
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