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Introduce the (experimental) sqlite3_result_error_toobig() API that

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function implementations can use to signal SQLite that the function
result is too big to represent. (CVS 3949)

FossilOrigin-Name: 17c4235c492f746867c1d2b8621043b93f8aa10e
This commit is contained in:
drh
2007-05-08 15:15:02 +00:00
parent f8e632b630
commit a0206bc81c
7 changed files with 31 additions and 21 deletions
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12
src/func.c
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@@ -16,7 +16,7 @@
** sqliteRegisterBuildinFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: func.c,v 1.148 2007/05/08 14:39:04 danielk1977 Exp $
** $Id: func.c,v 1.149 2007/05/08 15:15:02 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -301,7 +301,7 @@ static void randomBlob(
n = 1;
}
if( n>SQLITE_MAX_LENGTH ){
sqlite3_result_error(context, "randomblob() too large", -1);
sqlite3_result_error_toobig(context);
return;
}
p = sqliteMalloc(n);
@@ -624,7 +624,7 @@ static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
char const *zBlob = sqlite3_value_blob(argv[0]);
if( 2*nBlob+4>SQLITE_MAX_LENGTH ){
sqlite3_result_error(context, "BLOB too big to quote", -1);
sqlite3_result_error_toobig(context);
return;
}
zText = (char *)sqliteMalloc((2*nBlob)+4);
@@ -654,7 +654,7 @@ static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
if( zArg==0 ) return;
for(i=0, n=0; zArg[i]; i++){ if( zArg[i]=='\'' ) n++; }
if( i+n+3>SQLITE_MAX_LENGTH ){
sqlite3_result_error(context, "string too big to quote", -1);
sqlite3_result_error_toobig(context);
return;
}
z = sqliteMalloc( i+n+3 );
@@ -689,7 +689,7 @@ static void hexFunc(
assert( argc==1 );
n = sqlite3_value_bytes(argv[0]);
if( n*2+1>SQLITE_MAX_LENGTH ){
sqlite3_result_error(context, "BLOB too big to convert to hex", -1);
sqlite3_result_error_toobig(context);
return;
}
pBlob = sqlite3_value_blob(argv[0]);
@@ -764,7 +764,7 @@ static void replaceFunc(
zOut[j++] = zStr[i];
}else{
if( (j+nRep+loopLimit-i)>SQLITE_MAX_LENGTH ){
sqlite3_result_error(context, "replace() is too large", -1);
sqlite3_result_error_toobig(context);
sqlite3_free(zOut);
return;
}