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Provide the SQLITE_DIRECTONLY flag for app-defined functions that prohibits

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the use of those functions within triggers or views.

FossilOrigin-Name: fc745845d8d76adc165575e2192f4176e3c28e614c72571d56f4011560499fe1
This commit is contained in:
drh
2019-08-15 20:04:09 +00:00
parent 725dd72400
commit 42d2fce7f5
11 changed files with 131 additions and 54 deletions
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4
src/main.c
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@@ -1720,7 +1720,8 @@ int sqlite3CreateFunc(
}
assert( SQLITE_FUNC_CONSTANT==SQLITE_DETERMINISTIC );
extraFlags = enc & SQLITE_DETERMINISTIC;
assert( SQLITE_FUNC_DIRECT==SQLITE_DIRECTONLY );
extraFlags = enc & (SQLITE_DETERMINISTIC|SQLITE_DIRECTONLY);
enc &= (SQLITE_FUNC_ENCMASK|SQLITE_ANY);
#ifndef SQLITE_OMIT_UTF16
@@ -1783,6 +1784,7 @@ int sqlite3CreateFunc(
p->u.pDestructor = pDestructor;
p->funcFlags = (p->funcFlags & SQLITE_FUNC_ENCMASK) | extraFlags;
testcase( p->funcFlags & SQLITE_DETERMINISTIC );
testcase( p->funcFlags & SQLITE_DIRECTONLY );
p->xSFunc = xSFunc ? xSFunc : xStep;
p->xFinalize = xFinal;
p->xValue = xValue;